[REL] v2.2.8

# v2.2.8

 - [IMP] template set config: getTemplate function
 - [IMP] parser: .trim modifier implies .lazy modifier
 - [REF] parser, template_set: factor out parseXML function

.gitignore

@@ -15,7 +15,7 @@ yarn-debug.log*
 yarn-error.log*
 
 #ide's
-.vscode
+**/.vscode/*
 .idea
 
 node_modules
@@ -26,3 +26,10 @@ release-notes.md
 
 # useful in some cases
 /temp
+
+# owl-vision
+*/owl-vision/out/
+*/owl-vision/.vs/
+**/*.vsix
+!*/owl-vision/.vscode/launch.json
+!*/owl-vision/.vscode/tasks.json

doc/reference/app.md

@@ -61,6 +61,8 @@ The `config` object is an object with some of the following keys:
   templates (see [translations](translations.md))
 - **`templates (string | xml document)`**: all the templates that will be used by
   the components created by the application.
+- **`getTemplate ((s: string) => Element | Function | string | void)`**: a function that will be called by owl when it
+  needs a template. If undefined is returned, owl looks into the app templates.
 - **`warnIfNoStaticProps (boolean, default=false)`**: if true, Owl will log a warning
   whenever it encounters a component that does not provide a [static props description](props.md#props-validation).
 

doc/reference/component.md

@@ -357,7 +357,7 @@ cleaning operation, since the component may be destroyed before it has even been
 mounted. The `willDestroy` hook is useful in that situation, since it is always
 called.
 
-The `onWillUnmount` hook is used to register a function that will be executed at
+The `onWillDestroy` hook is used to register a function that will be executed at
 this moment:
 
 ```javascript

doc/reference/error_handling.md

@@ -51,8 +51,8 @@ that render its content, and a fallback if an error happened.
 ```js
 class ErrorBoundary extends Component {
   static template = xml`
-    <t t-if="error" t-slot="fallback">An error occurred</t>
-    <t t-else="" t-slot="content"`;
+    <t t-if="state.error" t-slot="fallback">An error occurred</t>
+    <t t-else="" t-slot="default"/>`;
 
   setup() {
     this.state = useState({ error: false });

doc/reference/hooks.md

@@ -190,12 +190,13 @@ will then be updated accordingly.
 ### `useExternalListener`
 
 The `useExternalListener` hook helps solve a very common problem: adding and removing
-a listener on some target whenever a component is mounted/unmounted. For example,
+a listener on some target whenever a component is mounted/unmounted. It takes a target
+as its first argument, forwards the other arguments to `addEventListener`. For example,
 a dropdown menu (or its parent) may need to listen to a `click` event on `window`
 to be closed:
 
 ```js
-useExternalListener(window, "click", this.closeMenu);
+useExternalListener(window, "click", this.closeMenu, { capture: true });
 ```
 
 ### `useComponent`

doc/tools/devtools_guide.md

@@ -35,13 +35,13 @@ The components tab is separated into two sub windows: the components tree in the
 the component details in the right. The components tree will display all the different
 components that are present in the tab in the form of a tree. The root of this tree is
 actually the app which is not a component but can still be inspected by the devtools like
-one. There can also be multiple apps loaded in the page like in the following:
+one. There can also be multiple apps loaded in the page like in website:
 
 <img src="screenshots/multi_apps.png"/>
 
 There is a convenient search bar at the top of the components tree which will help finding
 the components tou want in the tree and also, an element picker can be used to directly select
-the component you want to focus on in the page which is especially useful when trying to find
+the component you want to focus on in the page which is especially useful when 1trying to find
 what you want. Just click on the elements picker icon and click on the element you want to focus
 on in the page and it will be selected in the devtools accordingly. Hovering any element in the
 page in this mode will highlight it and the same happens anytime in the components tree.
@@ -64,25 +64,18 @@ as its env, props, observed states and all the other variables that are present
 While the props and the env are already present on the actual instance of the component and are
 pretty explicit by themselves, the observed state value is a bit more complicated to grasp.
 
-The observed state is actually information about which variables are observed by the component
-which will trigger a rerender of the component when it is modified. The keys represent which part of the
-variable is actually observed and the target is the actual variable. For simplicity, the properties
-that are not observed by the component are greyed out while the others are in bold. This means that
-editing bold ones will trigger a rerender while the greyed out ones will not.
+The observed state is actually information about which variables are being observed by the component:
+when any property of a reactive object is being read by the component, the component will subscribe
+to this property which means it will listen to any change that can occur on the property and render
+when such a change occurs. This can be visualized easily within the devtools inside of the observed
+state section: observed properties of the reactive object(s) are displayed in bold while the others
+are greyed out. Do keep in mind that a greyed out property in the observed state of one component
+may be observed by another and the other way around is also possible. Here is an example for some
+user Field component:
 
 <img src="screenshots/states.png"/>
 
-In the given example, we have two keys/target pairs for two different variables. The first one indicates
-that adding or removing an element to the array will trigger a rerender since the length will have changed.
-Replacing the element at index 0, 1 or 2 will also have the same effect as implied by the keys. It doesn't
-mean that editing the properties of element at index 0, 1 or 2 will rerender the component though. It may
-be the case for some but this will be described in another keys/target pair. The second keys/target pair
-is actually the element at index 0 of the first pair. It only has id in the keys meaning that only the
-id property will actually trigger a rerender the component when modified. Be aware however that the other
-properties may be in the observed state of another component like a child one in this case. A greyed out
-property only implies it is not reactive for the selected component and not for the others.
-
-The navigation inside the properties is also similar to the one in console variables: properties have
+Navigation inside the properties is also similar to the one in console variables: properties have
 their prototype displayed and getters will get their value when clicked on (...). It is also possible to
 send any property to the console using the right-click context menu on it and functions can be inspected
 in the sources tab as well.
@@ -96,8 +89,10 @@ component's name. Using the left click on the component's name will focus it in
 It is also possible to edit any of the leaf node properties. To do so, you must double click on the
 property's value and modify it using the freshly created input then press enter to apply the changes.
 Do note that the modified values should be written in JSON format in order to be valid (examples:
-89, "yes", undefined, null, \["hello", 15\], {"a": 1}, true, ...). Whether it has an impact on the
-component or not and whether it produces an error is the responsability of the user.
+89, "yes", undefined, null, \["hello", 15\], {"a": 1}, true, ...). Editing any value will produce a
+manual render of the component (or the root component of the application in the case of env values).
+Whether the edition has an impact on the component or not and whether it produces an error is the
+responsability of the user.
 
 <img src="screenshots/edit.png"/>
 
@@ -117,7 +112,8 @@ are intercepted by the devtools using the record button.
 The second button is used to clear all the events that have been recorded. The select can be used to
 switch between the tree view (which shows the causality between renders) and the events log view which
 simply displays the events in the exact order they were triggered. In this view, you can expand the create,
-update and destroy events which reveals the component that initiated the event.
+update and destroy events which reveals the component that initiated the event. Also, a transition line will
+appear each time a new animation frame has been loaded between events.
 
 <img src="screenshots/events_log.png"/>
 
@@ -131,20 +127,29 @@ There is also the Trace Renderings and Trace Subscriptions features. These featu
 recording of events and have no effect on the profiler tab. The Trace Renderings option is used to log in
 the console all the render events and allows to show their traceback information. Similarly, the Trace
 Subscriptions option logs all the properties that caused a render event and also allows to see the traceback
-of the modification
+of the modification.
 
 <img src="screenshots/trace_rendering.png"/>
 <img src="screenshots/trace_subscriptions.png"/>
 
+The Owl Devtools also allow to inspect iframes coded in Owl: when an Owl iframe is detected in the page,
+the iframe selector will appear next to the tabs. This allows to switch from an iframe to another easily.
+Be aware that switching iframes will clear all record events from the profiler tab. Iframes detection is
+currently not working in the firefox version, we are aware of this issue and will try to address it in the
+future.
+
+<img src="screenshots/iframes.png"/>
+
 ## Options
 
 The owl devtools extension has a dark mode feature which defaults to your general devtools settings and can
-be toggled using the sun/moon icon at the top-right corner of the tab. All the examples above were created
-with the dark mode enabled. There is also a refresh button to completely reset the owl devtools.
+be toggled using the sun/moon icon at the top-right corner of the tab. There is also a refresh button to
+completely reset the owl devtools.
 
 <img src="screenshots/darkmode.png"/>
 
 ## Troubleshooting
 
-If the feedback from the page to the devtools seems to be cut, just close the devtools and refresh the page.
+If the feedback from the page to the devtools seems to be cut, you can first try to use the refresh
+button mentioned above but if it still doesn't seem to work, just close the devtools and refresh the page.
 This will eventually happen any time a tab stays opened for too long without being refreshed.

docs/owl.js

@@ -2073,7 +2073,7 @@ function basicProxyHandler(callback) {
         set(target, key, value, receiver) {
             const hadKey = objectHasOwnProperty.call(target, key);
             const originalValue = Reflect.get(target, key, receiver);
-            const ret = Reflect.set(target, key, value, receiver);
+            const ret = Reflect.set(target, key, toRaw(value), receiver);
             if (!hadKey && objectHasOwnProperty.call(target, key)) {
                 notifyReactives(target, KEYCHANGES);
             }
@@ -3159,8 +3159,14 @@ const helpers = {
     makeRefWrapper,
 };
 
-const bdom = { text, createBlock, list, multi, html, toggler, comment };
-function parseXML$1(xml) {
+/**
+ * Parses an XML string into an XML document, throwing errors on parser errors
+ * instead of returning an XML document containing the parseerror.
+ *
+ * @param xml the string to parse
+ * @returns an XML document corresponding to the content of the string
+ */
+function parseXML(xml) {
     const parser = new DOMParser();
     const doc = parser.parseFromString(xml, "text/xml");
     if (doc.getElementsByTagName("parsererror").length) {
@@ -3187,7 +3193,9 @@ function parseXML$1(xml) {
         throw new OwlError(msg);
     }
     return doc;
-}
+}
+
+const bdom = { text, createBlock, list, multi, html, toggler, comment };
 class TemplateSet {
     constructor(config = {}) {
         this.rawTemplates = Object.create(globalTemplates);
@@ -3197,8 +3205,16 @@ class TemplateSet {
         this.translateFn = config.translateFn;
         this.translatableAttributes = config.translatableAttributes;
         if (config.templates) {
-            this.addTemplates(config.templates);
+            if (config.templates instanceof Document || typeof config.templates === "string") {
+                this.addTemplates(config.templates);
+            }
+            else {
+                for (const name in config.templates) {
+                    this.addTemplate(name, config.templates[name]);
+                }
+            }
         }
+        this.getRawTemplate = config.getTemplate;
     }
     static registerTemplate(name, fn) {
         globalTemplates[name] = fn;
@@ -3228,15 +3244,16 @@ class TemplateSet {
             // empty string
             return;
         }
-        xml = xml instanceof Document ? xml : parseXML$1(xml);
+        xml = xml instanceof Document ? xml : parseXML(xml);
         for (const template of xml.querySelectorAll("[t-name]")) {
             const name = template.getAttribute("t-name");
             this.addTemplate(name, template);
         }
     }
     getTemplate(name) {
+        var _a;
         if (!(name in this.templates)) {
-            const rawTemplate = this.rawTemplates[name];
+            const rawTemplate = ((_a = this.getRawTemplate) === null || _a === void 0 ? void 0 : _a.call(this, name)) || this.rawTemplates[name];
             if (rawTemplate === undefined) {
                 let extraInfo = "";
                 try {
@@ -4946,9 +4963,9 @@ function parseDOMNode(node, ctx) {
             const isSelect = tagName === "select";
             const isCheckboxInput = isInput && typeAttr === "checkbox";
             const isRadioInput = isInput && typeAttr === "radio";
-            const hasLazyMod = attr.includes(".lazy");
-            const hasNumberMod = attr.includes(".number");
             const hasTrimMod = attr.includes(".trim");
+            const hasLazyMod = hasTrimMod || attr.includes(".lazy");
+            const hasNumberMod = attr.includes(".number");
             const eventType = isRadioInput ? "click" : isSelect || hasLazyMod ? "change" : "input";
             model = {
                 baseExpr,
@@ -5279,14 +5296,14 @@ function parseComponent(node, ctx) {
             // be ignored)
             let el = slotNode.parentElement;
             let isInSubComponent = false;
-            while (el !== clone) {
+            while (el && el !== clone) {
                 if (el.hasAttribute("t-component") || el.tagName[0] === el.tagName[0].toUpperCase()) {
                     isInSubComponent = true;
                     break;
                 }
                 el = el.parentElement;
             }
-            if (isInSubComponent) {
+            if (isInSubComponent || !el) {
                 continue;
             }
             slotNode.removeAttribute("t-set-slot");
@@ -5494,41 +5511,6 @@ function normalizeTEscTOut(el) {
 function normalizeXML(el) {
     normalizeTIf(el);
     normalizeTEscTOut(el);
-}
-/**
- * Parses an XML string into an XML document, throwing errors on parser errors
- * instead of returning an XML document containing the parseerror.
- *
- * @param xml the string to parse
- * @returns an XML document corresponding to the content of the string
- */
-function parseXML(xml) {
-    const parser = new DOMParser();
-    const doc = parser.parseFromString(xml, "text/xml");
-    if (doc.getElementsByTagName("parsererror").length) {
-        let msg = "Invalid XML in template.";
-        const parsererrorText = doc.getElementsByTagName("parsererror")[0].textContent;
-        if (parsererrorText) {
-            msg += "\nThe parser has produced the following error message:\n" + parsererrorText;
-            const re = /\d+/g;
-            const firstMatch = re.exec(parsererrorText);
-            if (firstMatch) {
-                const lineNumber = Number(firstMatch[0]);
-                const line = xml.split("\n")[lineNumber - 1];
-                const secondMatch = re.exec(parsererrorText);
-                if (line && secondMatch) {
-                    const columnIndex = Number(secondMatch[0]) - 1;
-                    if (line[columnIndex]) {
-                        msg +=
-                            `\nThe error might be located at xml line ${lineNumber} column ${columnIndex}\n` +
-                                `${line}\n${"-".repeat(columnIndex - 1)}^`;
-                    }
-                }
-            }
-        }
-        throw new OwlError(msg);
-    }
-    return doc;
 }
 
 function compile(template, options = {}) {
@@ -5555,7 +5537,7 @@ function compile(template, options = {}) {
 }
 
 // do not modify manually. This file is generated by the release script.
-const version = "2.2.6";
+const version = "2.2.8";
 
 // -----------------------------------------------------------------------------
 //  Scheduler
@@ -5902,7 +5884,7 @@ function useChildSubEnv(envExtension) {
  *
  * @template T
  * @param {Effect<T>} effect the effect to run on component mount and/or patch
- * @param {()=>T} [computeDependencies=()=>[NaN]] a callback to compute
+ * @param {()=>[...T]} [computeDependencies=()=>[NaN]] a callback to compute
  *      dependencies that will decide if the effect needs to be cleaned up and
  *      run again. If the dependencies did not change, the effect will not run
  *      again. The default value returns an array containing only NaN because
@@ -5984,6 +5966,6 @@ TemplateSet.prototype._compileTemplate = function _compileTemplate(name, templat
 export { App, Component, EventBus, OwlError, __info__, blockDom, loadFile, markRaw, markup, mount, onError, onMounted, onPatched, onRendered, onWillDestroy, onWillPatch, onWillRender, onWillStart, onWillUnmount, onWillUpdateProps, reactive, status, toRaw, useChildSubEnv, useComponent, useEffect, useEnv, useExternalListener, useRef, useState, useSubEnv, validate, validateType, whenReady, xml };
 
 
-__info__.date = '2023-09-25T11:48:01.531Z';
-__info__.hash = '752160f';
+__info__.date = '2024-01-12T10:02:46.131Z';
+__info__.hash = '7b454da';
 __info__.url = 'https://github.com/odoo/owl';

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@odoo/owl",
-  "version": "2.2.6",
+  "version": "2.2.8",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@odoo/owl",
-  "version": "2.2.6",
+  "version": "2.2.8",
   "description": "Odoo Web Library (OWL)",
   "main": "dist/owl.cjs.js",
   "module": "dist/owl.es.js",

src/common/utils.ts

@@ -0,0 +1,38 @@
+import { OwlError } from "./owl_error";
+
+/**
+ * Parses an XML string into an XML document, throwing errors on parser errors
+ * instead of returning an XML document containing the parseerror.
+ *
+ * @param xml the string to parse
+ * @returns an XML document corresponding to the content of the string
+ */
+export function parseXML(xml: string): XMLDocument {
+  const parser = new DOMParser();
+  const doc = parser.parseFromString(xml, "text/xml");
+  if (doc.getElementsByTagName("parsererror").length) {
+    let msg = "Invalid XML in template.";
+    const parsererrorText = doc.getElementsByTagName("parsererror")[0].textContent;
+    if (parsererrorText) {
+      msg += "\nThe parser has produced the following error message:\n" + parsererrorText;
+      const re = /\d+/g;
+      const firstMatch = re.exec(parsererrorText);
+      if (firstMatch) {
+        const lineNumber = Number(firstMatch[0]);
+        const line = xml.split("\n")[lineNumber - 1];
+        const secondMatch = re.exec(parsererrorText);
+        if (line && secondMatch) {
+          const columnIndex = Number(secondMatch[0]) - 1;
+          if (line[columnIndex]) {
+            msg +=
+              `\nThe error might be located at xml line ${lineNumber} column ${columnIndex}\n` +
+              `${line}\n${"-".repeat(columnIndex - 1)}^`;
+          }
+        }
+      }
+    }
+    throw new OwlError(msg);
+  }
+
+  return doc;
+}

src/compiler/parser.ts

@@ -1,4 +1,5 @@
 import { OwlError } from "../common/owl_error";
+import { parseXML } from "../common/utils";
 
 // -----------------------------------------------------------------------------
 // AST Type definition
@@ -366,9 +367,9 @@ function parseDOMNode(node: Element, ctx: ParsingContext): AST | null {
       const isSelect = tagName === "select";
       const isCheckboxInput = isInput && typeAttr === "checkbox";
       const isRadioInput = isInput && typeAttr === "radio";
-      const hasLazyMod = attr.includes(".lazy");
-      const hasNumberMod = attr.includes(".number");
       const hasTrimMod = attr.includes(".trim");
+      const hasLazyMod = hasTrimMod || attr.includes(".lazy");
+      const hasNumberMod = attr.includes(".number");
       const eventType = isRadioInput ? "click" : isSelect || hasLazyMod ? "change" : "input";
 
       model = {
@@ -740,14 +741,14 @@ function parseComponent(node: Element, ctx: ParsingContext): AST | null {
       // be ignored)
       let el = slotNode.parentElement!;
       let isInSubComponent = false;
-      while (el !== clone) {
+      while (el && el !== clone) {
         if (el!.hasAttribute("t-component") || el!.tagName[0] === el!.tagName[0].toUpperCase()) {
           isInSubComponent = true;
           break;
         }
         el = el.parentElement!;
       }
-      if (isInSubComponent) {
+      if (isInSubComponent || !el) {
         continue;
       }
 
@@ -972,40 +973,3 @@ function normalizeXML(el: Element) {
   normalizeTIf(el);
   normalizeTEscTOut(el);
 }
-
-/**
- * Parses an XML string into an XML document, throwing errors on parser errors
- * instead of returning an XML document containing the parseerror.
- *
- * @param xml the string to parse
- * @returns an XML document corresponding to the content of the string
- */
-function parseXML(xml: string): XMLDocument {
-  const parser = new DOMParser();
-  const doc = parser.parseFromString(xml, "text/xml");
-  if (doc.getElementsByTagName("parsererror").length) {
-    let msg = "Invalid XML in template.";
-    const parsererrorText = doc.getElementsByTagName("parsererror")[0].textContent;
-    if (parsererrorText) {
-      msg += "\nThe parser has produced the following error message:\n" + parsererrorText;
-      const re = /\d+/g;
-      const firstMatch = re.exec(parsererrorText);
-      if (firstMatch) {
-        const lineNumber = Number(firstMatch[0]);
-        const line = xml.split("\n")[lineNumber - 1];
-        const secondMatch = re.exec(parsererrorText);
-        if (line && secondMatch) {
-          const columnIndex = Number(secondMatch[0]) - 1;
-          if (line[columnIndex]) {
-            msg +=
-              `\nThe error might be located at xml line ${lineNumber} column ${columnIndex}\n` +
-              `${line}\n${"-".repeat(columnIndex - 1)}^`;
-          }
-        }
-      }
-    }
-    throw new OwlError(msg);
-  }
-
-  return doc;
-}

src/runtime/component.ts

@@ -23,7 +23,7 @@ export type ComponentConstructor<P extends Props = any, E = any> = (new (
 
 export class Component<Props = any, Env = any> {
   static template: string = "";
-  static props?: any;
+  static props?: Schema;
   static defaultProps?: any;
 
   props: Props;

src/runtime/hooks.ts

@@ -59,7 +59,7 @@ export function useChildSubEnv(envExtension: Env) {
 // useEffect
 // -----------------------------------------------------------------------------
 
-type EffectDeps<T extends any[]> = T | (T extends [...infer H, never] ? EffectDeps<H> : never);
+type EffectDeps<T extends unknown[]> = T | (T extends [...infer H, never] ? EffectDeps<H> : never);
 
 /**
  * @template T
@@ -67,7 +67,7 @@ type EffectDeps<T extends any[]> = T | (T extends [...infer H, never] ? EffectDe
  * @returns {void|(()=>void)} a cleanup function that reverses the side
  *      effects of the effect callback.
  */
-type Effect<T extends [...T]> = (...dependencies: EffectDeps<T>) => void | (() => void);
+type Effect<T extends unknown[]> = (...dependencies: EffectDeps<T>) => void | (() => void);
 
 /**
  * This hook will run a callback when a component is mounted and patched, and
@@ -76,15 +76,15 @@ type Effect<T extends [...T]> = (...dependencies: EffectDeps<T>) => void | (() =
  *
  * @template T
  * @param {Effect<T>} effect the effect to run on component mount and/or patch
- * @param {()=>T} [computeDependencies=()=>[NaN]] a callback to compute
+ * @param {()=>[...T]} [computeDependencies=()=>[NaN]] a callback to compute
  *      dependencies that will decide if the effect needs to be cleaned up and
  *      run again. If the dependencies did not change, the effect will not run
  *      again. The default value returns an array containing only NaN because
  *      NaN !== NaN, which will cause the effect to rerun on every patch.
  */
-export function useEffect<T extends [...T]>(
+export function useEffect<T extends unknown[]>(
   effect: Effect<T>,
-  computeDependencies: () => T = () => [NaN] as never
+  computeDependencies: () => [...T] = () => [NaN] as never
 ) {
   let cleanup: (() => void) | void;
   let dependencies: T;

src/runtime/portal.ts

@@ -65,7 +65,7 @@ export class Portal extends Component {
       type: String,
     },
     slots: true,
-  };
+  } as const;
 
   setup() {
     const node: any = this.__owl__;

src/runtime/reactivity.ts

@@ -249,7 +249,7 @@ function basicProxyHandler<T extends Target>(callback: Callback): ProxyHandler<T
     set(target, key, value, receiver) {
       const hadKey = objectHasOwnProperty.call(target, key);
       const originalValue = Reflect.get(target, key, receiver);
-      const ret = Reflect.set(target, key, value, receiver);
+      const ret = Reflect.set(target, key, toRaw(value), receiver);
       if (!hadKey && objectHasOwnProperty.call(target, key)) {
         notifyReactives(target, KEYCHANGES);
       }

src/runtime/template_set.ts

@@ -4,44 +4,16 @@ import { getCurrent } from "./component_node";
 import { Portal, portalTemplate } from "./portal";
 import { helpers } from "./template_helpers";
 import { OwlError } from "../common/owl_error";
+import { parseXML } from "../common/utils";
 
 const bdom = { text, createBlock, list, multi, html, toggler, comment };
 
-function parseXML(xml: string): Document {
-  const parser = new DOMParser();
-
-  const doc = parser.parseFromString(xml, "text/xml");
-  if (doc.getElementsByTagName("parsererror").length) {
-    let msg = "Invalid XML in template.";
-    const parsererrorText = doc.getElementsByTagName("parsererror")[0].textContent;
-    if (parsererrorText) {
-      msg += "\nThe parser has produced the following error message:\n" + parsererrorText;
-      const re = /\d+/g;
-      const firstMatch = re.exec(parsererrorText);
-      if (firstMatch) {
-        const lineNumber = Number(firstMatch[0]);
-        const line = xml.split("\n")[lineNumber - 1];
-        const secondMatch = re.exec(parsererrorText);
-        if (line && secondMatch) {
-          const columnIndex = Number(secondMatch[0]) - 1;
-          if (line[columnIndex]) {
-            msg +=
-              `\nThe error might be located at xml line ${lineNumber} column ${columnIndex}\n` +
-              `${line}\n${"-".repeat(columnIndex - 1)}^`;
-          }
-        }
-      }
-    }
-    throw new OwlError(msg);
-  }
-  return doc;
-}
-
 export interface TemplateSetConfig {
   dev?: boolean;
   translatableAttributes?: string[];
   translateFn?: (s: string) => string;
-  templates?: string | Document;
+  templates?: string | Document | Record<string, string>;
+  getTemplate?: (s: string) => Element | Function | string | void;
 }
 
 export class TemplateSet {
@@ -51,6 +23,7 @@ export class TemplateSet {
   dev: boolean;
   rawTemplates: typeof globalTemplates = Object.create(globalTemplates);
   templates: { [name: string]: Template } = {};
+  getRawTemplate?: (s: string) => Element | Function | string | void;
   translateFn?: (s: string) => string;
   translatableAttributes?: string[];
   Portal = Portal;
@@ -60,8 +33,15 @@ export class TemplateSet {
     this.translateFn = config.translateFn;
     this.translatableAttributes = config.translatableAttributes;
     if (config.templates) {
-      this.addTemplates(config.templates);
+      if (config.templates instanceof Document || typeof config.templates === "string") {
+        this.addTemplates(config.templates);
+      } else {
+        for (const name in config.templates) {
+          this.addTemplate(name, config.templates[name]);
+        }
+      }
     }
+    this.getRawTemplate = config.getTemplate;
   }
 
   addTemplate(name: string, template: string | Element) {
@@ -100,7 +80,7 @@ export class TemplateSet {
 
   getTemplate(name: string): Template {
     if (!(name in this.templates)) {
-      const rawTemplate = this.rawTemplates[name];
+      const rawTemplate = this.getRawTemplate?.(name) || this.rawTemplates[name];
       if (rawTemplate === undefined) {
         let extraInfo = "";
         try {

src/runtime/validation.ts

@@ -8,6 +8,7 @@ type BaseType =
   | typeof Date
   | typeof Object
   | typeof Array
+  | typeof Function
   | true
   | "*";
 

src/version.ts

@@ -1,2 +1,2 @@
 // do not modify manually. This file is generated by the release script.
-export const version = "2.2.6";
+export const version = "2.2.8";

tests/app/__snapshots__/app.test.ts.snap

@@ -32,7 +32,7 @@ exports[`app app: clear scheduler tasks and destroy cancelled nodes immediately
 }"
 `;
 
-exports[`app app: clear scheduler tasks and destroy cancelled nodes immediately on destroy 2`] = `
+exports[`app app: clear scheduler tasks and destroy cancelled nodes immediately on destroy 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -57,6 +57,19 @@ exports[`app can configure an app with props 1`] = `
 }"
 `;
 
+exports[`app can load templates from an object name-string 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div class=\\"hello\\">hello</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
 exports[`app can mount app in an iframe 1`] = `
 "function anonymous(app, bdom, helpers
 ) {

tests/app/app.test.ts

@@ -8,6 +8,7 @@ import {
   useLogLifecycle,
   makeDeferred,
   nextMicroTick,
+  steps,
 } from "../helpers";
 
 let fixture: HTMLElement;
@@ -123,23 +124,64 @@ describe("app", () => {
 
     const app = new App(A);
     const comp = await app.mount(fixture);
-    expect(["A:setup", "A:willStart", "A:willRender", "A:rendered", "A:mounted"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:setup",
+        "A:willStart",
+        "A:willRender",
+        "A:rendered",
+        "A:mounted",
+      ]
+    `);
 
     comp.state.value = true;
     await nextTick();
-    expect(["A:willRender", "B:setup", "B:willStart", "A:rendered"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:willRender",
+        "B:setup",
+        "B:willStart",
+        "A:rendered",
+      ]
+    `);
 
     // rerender to force the instantiation of a new B component (and cancelling the first)
     comp.render();
     await nextMicroTick();
-    expect(["A:willRender", "B:setup", "B:willStart", "A:rendered"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:willRender",
+        "B:setup",
+        "B:willStart",
+        "A:rendered",
+      ]
+    `);
 
     app.destroy();
-    expect([
-      "A:willUnmount",
-      "B:willDestroy",
-      "A:willDestroy",
-      "B:willDestroy", // make sure the 2 B instances have been destroyed synchronously
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:willUnmount",
+        "B:willDestroy",
+        "A:willDestroy",
+        "B:willDestroy",
+      ]
+    `);
+  });
+
+  test("can load templates from an object name-string", async () => {
+    const templates = {
+      hello: `<div class="hello">hello</div>`,
+      world: `<div>world</div>`,
+    };
+    class SomeComponent extends Component {
+      static template = "hello";
+    }
+
+    const app = new App(SomeComponent, { templates });
+    await app.mount(fixture);
+    expect(fixture.querySelector(".hello")).toBeDefined();
+    // Only the "hello" template is used, so the "world" template is not yet loaded
+    expect(Object.keys(app.templates)).toEqual(["hello"]);
+    expect(Object.keys(app.rawTemplates)).toEqual(["hello", "world"]);
   });
 });

tests/compiler/__snapshots__/template_set.test.ts.snap

@@ -101,3 +101,55 @@ exports[`loading templates can load a few templates from an XMLDocument 2`] = `
   }
 }"
 `;
+
+exports[`loading templates getTemplate: element returned (2) 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div>Hello World!</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`loading templates getTemplate: element returned 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div>Hello World!</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`loading templates getTemplate: template string returned 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div>Hello World!</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`loading templates getTemplate: undefined returned 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div>Hello World!</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;

tests/compiler/template_set.test.ts

@@ -78,4 +78,62 @@ describe("loading templates", () => {
     context.addTemplates(xml);
     expect(Object.keys(context.rawTemplates)).toEqual([]);
   });
+
+  test("getTemplate: element returned", () => {
+    const context = new TestContext({
+      getTemplate: (name) => {
+        if (name === "main") {
+          const data = `<div>Hello World!</div>`;
+          const xml = new DOMParser().parseFromString(data, "text/xml");
+          return xml.firstChild as Element;
+        }
+        return;
+      },
+    });
+    const result = context.renderToString("main");
+    expect(result).toBe("<div>Hello World!</div>");
+  });
+
+  test("getTemplate: element returned (2)", () => {
+    const context = new TestContext({
+      getTemplate: (name) => {
+        if (name === "main") {
+          const doc = new Document();
+          const div = doc.createElement("div");
+          div.append(doc.createTextNode("Hello World!"));
+          return div;
+        }
+        return;
+      },
+    });
+    const result = context.renderToString("main");
+    expect(result).toBe("<div>Hello World!</div>");
+  });
+
+  test("getTemplate: template string returned", () => {
+    const context = new TestContext({
+      getTemplate: (name) => {
+        if (name === "main") {
+          return `<div>Hello World!</div>`;
+        }
+        return;
+      },
+    });
+    const result = context.renderToString("main");
+    expect(result).toBe("<div>Hello World!</div>");
+  });
+
+  test("getTemplate: undefined returned", () => {
+    const context = new TestContext({
+      getTemplate: () => {},
+    });
+    const data = `<?xml version="1.0" encoding="UTF-8"?>
+    <templates id="template" xml:space="preserve">
+      <div t-name="main">Hello World!</div>
+    </templates>`;
+    const xml = new DOMParser().parseFromString(data, "text/xml");
+    context.addTemplates(xml);
+    const result = context.renderToString("main");
+    expect(result).toBe("<div>Hello World!</div>");
+  });
 });

tests/components/__snapshots__/concurrency.test.ts.snap

@@ -184,7 +184,7 @@ exports[`changing state before first render does not trigger a render (with pare
 }"
 `;
 
-exports[`changing state before first render does not trigger a render (with parent) 2`] = `
+exports[`changing state before first render does not trigger a render (with parent) 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -254,7 +254,7 @@ exports[`components are not destroyed between animation frame 1`] = `
 }"
 `;
 
-exports[`components are not destroyed between animation frame 2`] = `
+exports[`components are not destroyed between animation frame 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -268,7 +268,7 @@ exports[`components are not destroyed between animation frame 2`] = `
 }"
 `;
 
-exports[`components are not destroyed between animation frame 3`] = `
+exports[`components are not destroyed between animation frame 5`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -748,7 +748,7 @@ exports[`concurrent renderings scenario 10 2`] = `
 }"
 `;
 
-exports[`concurrent renderings scenario 10 3`] = `
+exports[`concurrent renderings scenario 10 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -993,7 +993,7 @@ exports[`concurrent renderings scenario 16 3`] = `
 }"
 `;
 
-exports[`concurrent renderings scenario 16 4`] = `
+exports[`concurrent renderings scenario 16 6`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1024,7 +1024,7 @@ exports[`creating two async components, scenario 1 1`] = `
 }"
 `;
 
-exports[`creating two async components, scenario 1 2`] = `
+exports[`creating two async components, scenario 1 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1038,7 +1038,7 @@ exports[`creating two async components, scenario 1 2`] = `
 }"
 `;
 
-exports[`creating two async components, scenario 1 3`] = `
+exports[`creating two async components, scenario 1 5`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1085,7 +1085,7 @@ exports[`creating two async components, scenario 2 2`] = `
 }"
 `;
 
-exports[`creating two async components, scenario 2 3`] = `
+exports[`creating two async components, scenario 2 5`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1133,7 +1133,7 @@ exports[`creating two async components, scenario 3 (patching in the same frame)
 }"
 `;
 
-exports[`creating two async components, scenario 3 (patching in the same frame) 3`] = `
+exports[`creating two async components, scenario 3 (patching in the same frame) 5`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1308,7 +1308,7 @@ exports[`delayed render does not go through when t-component value changed 2`] =
 }"
 `;
 
-exports[`delayed render does not go through when t-component value changed 3`] = `
+exports[`delayed render does not go through when t-component value changed 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1617,7 +1617,7 @@ exports[`destroyed component causes other soon to be destroyed component to rere
 }"
 `;
 
-exports[`destroyed component causes other soon to be destroyed component to rerender, weird stuff happens 2`] = `
+exports[`destroyed component causes other soon to be destroyed component to rerender, weird stuff happens 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1628,7 +1628,7 @@ exports[`destroyed component causes other soon to be destroyed component to rere
 }"
 `;
 
-exports[`destroyed component causes other soon to be destroyed component to rerender, weird stuff happens 3`] = `
+exports[`destroyed component causes other soon to be destroyed component to rerender, weird stuff happens 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1656,7 +1656,7 @@ exports[`destroying/recreating a subcomponent, other scenario 1`] = `
 }"
 `;
 
-exports[`destroying/recreating a subcomponent, other scenario 2`] = `
+exports[`destroying/recreating a subcomponent, other scenario 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1685,7 +1685,7 @@ exports[`destroying/recreating a subwidget with different props (if start is not
 }"
 `;
 
-exports[`destroying/recreating a subwidget with different props (if start is not over) 2`] = `
+exports[`destroying/recreating a subwidget with different props (if start is not over) 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -1787,7 +1787,7 @@ exports[`rendering component again in next microtick 1`] = `
 }"
 `;
 
-exports[`rendering component again in next microtick 2`] = `
+exports[`rendering component again in next microtick 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;

tests/components/__snapshots__/error_handling.test.ts.snap

@@ -241,7 +241,7 @@ exports[`can catch errors an error in onWillDestroy, variation 1`] = `
 }"
 `;
 
-exports[`can catch errors an error in onWillDestroy, variation 2`] = `
+exports[`can catch errors an error in onWillDestroy, variation 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;

tests/components/__snapshots__/lifecycle.test.ts.snap

@@ -92,7 +92,7 @@ exports[`lifecycle hooks component semantics 5`] = `
 }"
 `;
 
-exports[`lifecycle hooks component semantics 6`] = `
+exports[`lifecycle hooks component semantics 7`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -185,7 +185,7 @@ exports[`lifecycle hooks destroy new children before being mountged 1`] = `
 }"
 `;
 
-exports[`lifecycle hooks destroy new children before being mountged 2`] = `
+exports[`lifecycle hooks destroy new children before being mountged 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -291,7 +291,7 @@ exports[`lifecycle hooks lifecycle semantics, part 2 1`] = `
 }"
 `;
 
-exports[`lifecycle hooks lifecycle semantics, part 2 2`] = `
+exports[`lifecycle hooks lifecycle semantics, part 2 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -303,7 +303,7 @@ exports[`lifecycle hooks lifecycle semantics, part 2 2`] = `
 }"
 `;
 
-exports[`lifecycle hooks lifecycle semantics, part 2 3`] = `
+exports[`lifecycle hooks lifecycle semantics, part 2 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -348,7 +348,7 @@ exports[`lifecycle hooks lifecycle semantics, part 4 1`] = `
 }"
 `;
 
-exports[`lifecycle hooks lifecycle semantics, part 4 2`] = `
+exports[`lifecycle hooks lifecycle semantics, part 4 3`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
@@ -360,7 +360,7 @@ exports[`lifecycle hooks lifecycle semantics, part 4 2`] = `
 }"
 `;
 
-exports[`lifecycle hooks lifecycle semantics, part 4 3`] = `
+exports[`lifecycle hooks lifecycle semantics, part 4 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;

tests/components/__snapshots__/slots.test.ts.snap

@@ -1066,6 +1066,45 @@ exports[`slots multiple slots containing components 3`] = `
 }"
 `;
 
+exports[`slots named slot inside named slot in t-component 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { capture, markRaw } = helpers;
+  const comp1 = app.createComponent(null, false, true, false, []);
+  const comp2 = app.createComponent(\`Child\`, true, true, false, []);
+  
+  function slot1(ctx, node, key = \\"\\") {
+    const b2 = text(\` outer \`);
+    const ctx2 = capture(ctx);
+    const Comp1 = ctx['Child'];
+    const b4 = toggler(Comp1, comp1({slots: markRaw({'brol': {__render: slot2.bind(this), __ctx: ctx2}})}, (Comp1).name + key + \`__1\`, node, this, Comp1));
+    return multi([b2, b4]);
+  }
+  
+  function slot2(ctx, node, key = \\"\\") {
+    return text(ctx['value']);
+  }
+  
+  return function template(ctx, node, key = \\"\\") {
+    const ctx1 = capture(ctx);
+    return comp2({slots: markRaw({'brol': {__render: slot1.bind(this), __ctx: ctx1}})}, key + \`__2\`, node, this, null);
+  }
+}"
+`;
+
+exports[`slots named slot inside named slot in t-component 2`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { callSlot } = helpers;
+  
+  return function template(ctx, node, key = \\"\\") {
+    return callSlot(ctx, node, key, 'brol', false, {});
+  }
+}"
+`;
+
 exports[`slots named slot inside slot 1`] = `
 "function anonymous(app, bdom, helpers
 ) {

tests/components/__snapshots__/t_component.test.ts.snap

@@ -180,7 +180,7 @@ exports[`t-component switching dynamic component 2`] = `
 }"
 `;
 
-exports[`t-component switching dynamic component 3`] = `
+exports[`t-component switching dynamic component 4`] = `
 "function anonymous(app, bdom, helpers
 ) {
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;

tests/components/__snapshots__/t_model.test.ts.snap

@@ -44,7 +44,26 @@ exports[`t-model directive .trim modifier 1`] = `
   let { text, createBlock, list, multi, html, toggler, comment } = bdom;
   let { toNumber } = helpers;
   
-  let block1 = createBlock(\`<div><input block-property-0=\\"value\\" block-handler-1=\\"input\\"/><span><block-text-2/></span></div>\`);
+  let block1 = createBlock(\`<div><input block-property-0=\\"value\\" block-handler-1=\\"change\\"/><span><block-text-2/></span></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    const bExpr1 = ctx['state'];
+    const expr1 = 'text';
+    let prop1 = bExpr1[expr1];
+    let hdlr1 = [(ev) => { bExpr1[expr1] = ev.target.value.trim(); }];
+    let txt1 = ctx['state'].text;
+    return block1([prop1, hdlr1, txt1]);
+  }
+}"
+`;
+
+exports[`t-model directive .trim modifier implies .lazy modifier 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { toNumber } = helpers;
+  
+  let block1 = createBlock(\`<div><input block-property-0=\\"value\\" block-handler-1=\\"change\\"/><span><block-text-2/></span></div>\`);
   
   return function template(ctx, node, key = \\"\\") {
     const bExpr1 = ctx['state'];

tests/components/basics.test.ts

@@ -5,6 +5,7 @@ import {
   nextAppError,
   nextTick,
   snapshotEverything,
+  steps,
   useLogLifecycle,
 } from "../helpers";
 import { markup } from "../../src/runtime/utils";
@@ -868,19 +869,26 @@ describe("basics", () => {
 
     const parent = await mount(Parent, fixture);
     expect(Object.keys(parent.__owl__.children).length).toStrictEqual(1);
-    expect([
-      "Child:setup",
-      "Child:willStart",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:setup",
+        "Child:willStart",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+      ]
+    `);
 
     parent.ifVar = false;
     parent.render();
     await nextTick();
     expect(Object.keys(parent.__owl__.children).length).toStrictEqual(0);
-    expect(["Child:willUnmount", "Child:willDestroy"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willUnmount",
+        "Child:willDestroy",
+      ]
+    `);
   });
 
   test("component children doesn't leak (t-key case)", async () => {
@@ -899,27 +907,31 @@ describe("basics", () => {
 
     const parent = await mount(Parent, fixture);
     expect(Object.keys(parent.__owl__.children).length).toStrictEqual(1);
-    expect([
-      "Child:setup",
-      "Child:willStart",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:setup",
+        "Child:willStart",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+      ]
+    `);
 
     parent.keyVar = 2;
     parent.render();
     await nextTick();
     expect(Object.keys(parent.__owl__.children).length).toStrictEqual(1);
-    expect([
-      "Child:setup",
-      "Child:willStart",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Child:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:setup",
+        "Child:willStart",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Child:mounted",
+      ]
+    `);
   });
 
   test("GrandChild display is controlled by its GrandParent", async () => {
@@ -943,20 +955,27 @@ describe("basics", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<div></div>");
-    expect([
-      "GrandChild:setup",
-      "GrandChild:willStart",
-      "GrandChild:willRender",
-      "GrandChild:rendered",
-      "GrandChild:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "GrandChild:setup",
+        "GrandChild:willStart",
+        "GrandChild:willRender",
+        "GrandChild:rendered",
+        "GrandChild:mounted",
+      ]
+    `);
 
     parent.displayGrandChild = false;
     parent.render();
     await nextTick();
     expect(fixture.innerHTML).toBe("");
 
-    expect(["GrandChild:willUnmount", "GrandChild:willDestroy"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "GrandChild:willUnmount",
+        "GrandChild:willDestroy",
+      ]
+    `);
   });
 });
 

tests/components/error_handling.test.ts

@@ -19,6 +19,7 @@ import {
   snapshotEverything,
   useLogLifecycle,
   nextAppError,
+  steps,
 } from "../helpers";
 import { OwlError } from "../../src/common/owl_error";
 
@@ -948,26 +949,28 @@ describe("can catch errors", () => {
     }
     await mount(Root, fixture);
     expect(fixture.innerHTML).toBe("<div><div>Error handled</div></div>");
-    expect([
-      "Root:setup",
-      "Root:willStart",
-      "Root:willRender",
-      "ErrorBoundary:setup",
-      "ErrorBoundary:willStart",
-      "Root:rendered",
-      "ErrorBoundary:willRender",
-      "ErrorComponent:setup",
-      "ErrorComponent:willStart",
-      "ErrorBoundary:rendered",
-      "ErrorComponent:willRender",
-      "ErrorComponent:rendered",
-      "ErrorComponent:mounted",
-      "boom",
-      "ErrorBoundary:willRender",
-      "ErrorBoundary:rendered",
-      "ErrorBoundary:mounted",
-      "Root:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Root:setup",
+        "Root:willStart",
+        "Root:willRender",
+        "ErrorBoundary:setup",
+        "ErrorBoundary:willStart",
+        "Root:rendered",
+        "ErrorBoundary:willRender",
+        "ErrorComponent:setup",
+        "ErrorComponent:willStart",
+        "ErrorBoundary:rendered",
+        "ErrorComponent:willRender",
+        "ErrorComponent:rendered",
+        "ErrorComponent:mounted",
+        "boom",
+        "ErrorBoundary:willRender",
+        "ErrorBoundary:rendered",
+        "ErrorBoundary:mounted",
+        "Root:mounted",
+      ]
+    `);
     expect(mockConsoleError).toBeCalledTimes(0);
     expect(mockConsoleWarn).toBeCalledTimes(0);
   });
@@ -998,21 +1001,23 @@ describe("can catch errors", () => {
     }
     await mount(Root, fixture);
     expect(fixture.innerHTML).toBe("<div>Error handled</div>");
-    expect([
-      "Root:setup",
-      "Root:willStart",
-      "Root:willRender",
-      "ErrorComponent:setup",
-      "ErrorComponent:willStart",
-      "Root:rendered",
-      "ErrorComponent:willRender",
-      "ErrorComponent:rendered",
-      "ErrorComponent:mounted",
-      "boom",
-      "Root:willRender",
-      "Root:rendered",
-      "Root:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Root:setup",
+        "Root:willStart",
+        "Root:willRender",
+        "ErrorComponent:setup",
+        "ErrorComponent:willStart",
+        "Root:rendered",
+        "ErrorComponent:willRender",
+        "ErrorComponent:rendered",
+        "ErrorComponent:mounted",
+        "boom",
+        "Root:willRender",
+        "Root:rendered",
+        "Root:mounted",
+      ]
+    `);
     expect(mockConsoleError).toBeCalledTimes(0);
     expect(mockConsoleWarn).toBeCalledTimes(0);
   });
@@ -1059,31 +1064,33 @@ describe("can catch errors", () => {
     }
     await mount(A, fixture);
     expect(fixture.innerHTML).toBe("<div><div>Error handled</div></div>");
-    expect([
-      "A:setup",
-      "A:willStart",
-      "A:willRender",
-      "B:setup",
-      "B:willStart",
-      "A:rendered",
-      "B:willRender",
-      "C:setup",
-      "C:willStart",
-      "B:rendered",
-      "C:willRender",
-      "Boom:setup",
-      "Boom:willStart",
-      "C:rendered",
-      "Boom:willRender",
-      "Boom:rendered",
-      "Boom:mounted",
-      "boom",
-      "C:willRender",
-      "C:rendered",
-      "C:mounted",
-      "B:mounted",
-      "A:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:setup",
+        "A:willStart",
+        "A:willRender",
+        "B:setup",
+        "B:willStart",
+        "A:rendered",
+        "B:willRender",
+        "C:setup",
+        "C:willStart",
+        "B:rendered",
+        "C:willRender",
+        "Boom:setup",
+        "Boom:willStart",
+        "C:rendered",
+        "Boom:willRender",
+        "Boom:rendered",
+        "Boom:mounted",
+        "boom",
+        "C:willRender",
+        "C:rendered",
+        "C:mounted",
+        "B:mounted",
+        "A:mounted",
+      ]
+    `);
     expect(mockConsoleError).toBeCalledTimes(0);
     expect(mockConsoleWarn).toBeCalledTimes(0);
   });
@@ -1130,31 +1137,33 @@ describe("can catch errors", () => {
     }
     await mount(Root, fixture);
     expect(fixture.innerHTML).toBe("<div>OK<div>Error handled</div></div>");
-    expect([
-      "Root:setup",
-      "Root:willStart",
-      "Root:willRender",
-      "OK:setup",
-      "OK:willStart",
-      "ErrorBoundary:setup",
-      "ErrorBoundary:willStart",
-      "Root:rendered",
-      "OK:willRender",
-      "OK:rendered",
-      "ErrorBoundary:willRender",
-      "ErrorComponent:setup",
-      "ErrorComponent:willStart",
-      "ErrorBoundary:rendered",
-      "ErrorComponent:willRender",
-      "ErrorComponent:rendered",
-      "ErrorComponent:mounted",
-      "boom",
-      "ErrorBoundary:willRender",
-      "ErrorBoundary:rendered",
-      "ErrorBoundary:mounted",
-      "OK:mounted",
-      "Root:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Root:setup",
+        "Root:willStart",
+        "Root:willRender",
+        "OK:setup",
+        "OK:willStart",
+        "ErrorBoundary:setup",
+        "ErrorBoundary:willStart",
+        "Root:rendered",
+        "OK:willRender",
+        "OK:rendered",
+        "ErrorBoundary:willRender",
+        "ErrorComponent:setup",
+        "ErrorComponent:willStart",
+        "ErrorBoundary:rendered",
+        "ErrorComponent:willRender",
+        "ErrorComponent:rendered",
+        "ErrorComponent:mounted",
+        "boom",
+        "ErrorBoundary:willRender",
+        "ErrorBoundary:rendered",
+        "ErrorBoundary:mounted",
+        "OK:mounted",
+        "Root:mounted",
+      ]
+    `);
     expect(mockConsoleError).toBeCalledTimes(0);
     expect(mockConsoleWarn).toBeCalledTimes(0);
   });
@@ -1481,35 +1490,39 @@ describe("can catch errors", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("1<div>abc</div>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
     parent.state.hasChild = false;
     await nextTick();
     await nextTick();
     await nextTick();
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("2");
   });
 
@@ -1542,13 +1555,15 @@ describe("can catch errors", () => {
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("1");
 
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = true;
     await nextMicroTick();
@@ -1556,26 +1571,35 @@ describe("can catch errors", () => {
     await nextMicroTick();
     await nextMicroTick();
     await nextMicroTick();
-    expect([
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+      ]
+    `);
     parent.state.hasChild = false;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Child:willDestroy",
-      "Parent:willRender",
-      "Parent:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Child:willDestroy",
+        "Parent:willRender",
+        "Parent:rendered",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("1");
     await nextTick();
-    expect(["Parent:willPatch", "Parent:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("2");
   });
 });

tests/components/hooks.test.ts

@@ -641,6 +641,56 @@ describe("hooks", () => {
       ]);
     });
 
+    test("effect types are inferred from dependencies", async () => {
+      // @ts-ignore (declared but never used)
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      class MyComponent extends Component {
+        static template = xml`<div/>`;
+
+        setup() {
+          useEffect(
+            (a, b) => {
+              expectType<number>(a);
+              expectType<string>(b);
+            },
+            () => [3, "hello"]
+          );
+        }
+      }
+    });
+
+    test("effect type allows an effect with partial dependencies parameters", async () => {
+      // @ts-ignore (declared but never used)
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      class MyComponent extends Component {
+        static template = xml`<div/>`;
+
+        setup() {
+          useEffect(
+            (a) => {
+              expectType<number>(a);
+            },
+            () => [3, "hello"]
+          );
+        }
+      }
+    });
+
+    test("effect type allows an effect with no dependency parameter", async () => {
+      // @ts-ignore (declared but never used)
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      class MyComponent extends Component {
+        static template = xml`<div/>`;
+
+        setup() {
+          useEffect(
+            () => {},
+            () => [3, "hello"]
+          );
+        }
+      }
+    });
+
     test("properly behaves when the effect function throws", async () => {
       let originalconsoleError = console.error;
       let originalconsoleWarn = console.warn;
@@ -673,3 +723,5 @@ describe("hooks", () => {
     });
   });
 });
+
+function expectType<T>(t: T) {}

tests/components/lifecycle.test.ts

@@ -17,6 +17,7 @@ import {
   nextMicroTick,
   nextTick,
   snapshotEverything,
+  steps,
   useLogLifecycle,
 } from "../helpers";
 
@@ -455,45 +456,51 @@ describe("lifecycle hooks", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<div><span>0</span></div>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.increment();
     await nextTick();
     expect(fixture.innerHTML).toBe("<div><span>1</span></div>");
-    expect([
-      "Parent:willRender",
-      "Child:willUpdateProps",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Child:willPatch",
-      "Child:patched",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:willUpdateProps",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Child:willPatch",
+        "Child:patched",
+        "Parent:patched",
+      ]
+    `);
 
     parent.toggleSubWidget();
     await nextTick();
     expect(fixture.innerHTML).toBe("");
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("hooks are called in proper order in widget creation/destruction", async () => {
@@ -514,26 +521,30 @@ describe("lifecycle hooks", () => {
 
     const app = new App(Parent);
     await app.mount(fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     app.destroy();
-    expect([
-      "Parent:willUnmount",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:willDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willUnmount",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 
   test("willUpdateProps hook is called", async () => {
@@ -632,26 +643,30 @@ describe("lifecycle hooks", () => {
 
     const app = new App(Parent);
     await app.mount(fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     app.destroy();
-    expect([
-      "Parent:willUnmount",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:willDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willUnmount",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 
   test("lifecycle semantics, part 2", async () => {
@@ -680,42 +695,48 @@ describe("lifecycle hooks", () => {
 
     const app = new App(Parent);
     const parent = await app.mount(fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = true;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "GrandChild:setup",
-      "GrandChild:willStart",
-      "Child:rendered",
-      "GrandChild:willRender",
-      "GrandChild:rendered",
-      "Parent:willPatch",
-      "GrandChild:mounted",
-      "Child:mounted",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "GrandChild:setup",
+        "GrandChild:willStart",
+        "Child:rendered",
+        "GrandChild:willRender",
+        "GrandChild:rendered",
+        "Parent:willPatch",
+        "GrandChild:mounted",
+        "Child:mounted",
+        "Parent:patched",
+      ]
+    `);
 
     app.destroy();
-    expect([
-      "Parent:willUnmount",
-      "Child:willUnmount",
-      "GrandChild:willUnmount",
-      "GrandChild:willDestroy",
-      "Child:willDestroy",
-      "Parent:willDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willUnmount",
+        "Child:willUnmount",
+        "GrandChild:willUnmount",
+        "GrandChild:willDestroy",
+        "Child:willDestroy",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 
   test("lifecycle semantics, part 3", async () => {
@@ -744,19 +765,26 @@ describe("lifecycle hooks", () => {
 
     const app = new App(Parent);
     const parent = await app.mount(fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = true;
     // immediately destroy everything
     app.destroy();
     await nextTick();
-    expect(["Parent:willUnmount", "Parent:willDestroy"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willUnmount",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 
   test("lifecycle semantics, part 4", async () => {
@@ -789,34 +817,40 @@ describe("lifecycle hooks", () => {
     const app = new App(Parent);
     const parent = await app.mount(fixture);
 
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = true;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "GrandChild:setup",
-      "GrandChild:willStart",
-      "Child:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "GrandChild:setup",
+        "GrandChild:willStart",
+        "Child:rendered",
+      ]
+    `);
 
     app.destroy();
-    expect([
-      "Parent:willUnmount",
-      "GrandChild:willDestroy",
-      "Child:willDestroy",
-      "Parent:willDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willUnmount",
+        "GrandChild:willDestroy",
+        "Child:willDestroy",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 
   test("lifecycle semantics, part 5", async () => {
@@ -837,29 +871,33 @@ describe("lifecycle hooks", () => {
     }
 
     const parent = await mount(Parent, fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = false;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("lifecycle semantics, part 6", async () => {
@@ -880,32 +918,36 @@ describe("lifecycle hooks", () => {
     }
 
     const parent = await mount(Parent, fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.value = 2;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Child:willUpdateProps",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Child:willPatch",
-      "Child:patched",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:willUpdateProps",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Child:willPatch",
+        "Child:patched",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("onWillRender", async () => {
@@ -937,43 +979,53 @@ describe("lifecycle hooks", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<button>1</button>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.value++; // to block child render
     await nextTick();
-    expect(["Parent:willRender", "Child:willUpdateProps", "Parent:rendered"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:willUpdateProps",
+        "Parent:rendered",
+      ]
+    `);
 
     fixture.querySelector("button")!.click();
     await nextTick();
-    expect([]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`Array []`);
 
     fixture.querySelector("button")!.click();
     await nextTick();
-    expect([]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`Array []`);
     expect(fixture.innerHTML).toBe("<button>1</button>");
 
     def.resolve();
     await nextTick();
     expect(fixture.innerHTML).toBe("<button>3</button>");
-    expect([
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Child:willPatch",
-      "Child:patched",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Child:willPatch",
+        "Child:patched",
+        "Parent:patched",
+      ]
+    `);
   });
 
   // TODO: rename (remove? seems covered by lifecycle semantics)
@@ -1054,50 +1106,54 @@ describe("lifecycle hooks", () => {
 
     await mount(A, fixture);
     expect(fixture.innerHTML).toBe(`<div>A<div>B</div><div>C<div>D</div><div>E</div></div></div>`);
-    expect([
-      "A:setup",
-      "A:willStart",
-      "A:willRender",
-      "B:setup",
-      "B:willStart",
-      "C:setup",
-      "C:willStart",
-      "A:rendered",
-      "B:willRender",
-      "B:rendered",
-      "C:willRender",
-      "D:setup",
-      "D:willStart",
-      "E:setup",
-      "E:willStart",
-      "C:rendered",
-      "D:willRender",
-      "D:rendered",
-      "E:willRender",
-      "E:rendered",
-      "E:mounted",
-      "D:mounted",
-      "C:mounted",
-      "B:mounted",
-      "A:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:setup",
+        "A:willStart",
+        "A:willRender",
+        "B:setup",
+        "B:willStart",
+        "C:setup",
+        "C:willStart",
+        "A:rendered",
+        "B:willRender",
+        "B:rendered",
+        "C:willRender",
+        "D:setup",
+        "D:willStart",
+        "E:setup",
+        "E:willStart",
+        "C:rendered",
+        "D:willRender",
+        "D:rendered",
+        "E:willRender",
+        "E:rendered",
+        "E:mounted",
+        "D:mounted",
+        "C:mounted",
+        "B:mounted",
+        "A:mounted",
+      ]
+    `);
 
     // update
     c!.state.flag = false;
     await nextTick();
-    expect([
-      "C:willRender",
-      "F:setup",
-      "F:willStart",
-      "C:rendered",
-      "F:willRender",
-      "F:rendered",
-      "C:willPatch",
-      "E:willUnmount",
-      "E:willDestroy",
-      "F:mounted",
-      "C:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "C:willRender",
+        "F:setup",
+        "F:willStart",
+        "C:rendered",
+        "F:willRender",
+        "F:rendered",
+        "C:willPatch",
+        "E:willUnmount",
+        "E:willDestroy",
+        "F:mounted",
+        "C:patched",
+      ]
+    `);
   });
 
   test("mounted hook is called on every mount, not just the first one", async () => {
@@ -1118,43 +1174,49 @@ describe("lifecycle hooks", () => {
     }
 
     const parent = await mount(Parent, fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.hasChild = false;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+      ]
+    `);
 
     parent.state.hasChild = true;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Child:mounted",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Child:mounted",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("render in mounted", async () => {
@@ -1172,19 +1234,26 @@ describe("lifecycle hooks", () => {
 
     await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<span></span>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-      "Parent:willRender",
-      "Parent:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+        "Parent:willRender",
+        "Parent:rendered",
+      ]
+    `);
 
     await nextTick();
     expect(fixture.innerHTML).toBe("<span>Patched</span>");
-    expect(["Parent:willPatch", "Parent:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("render in patched", async () => {
@@ -1205,29 +1274,38 @@ describe("lifecycle hooks", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<span></span>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.render();
     await nextTick();
     expect(fixture.innerHTML).toBe("<span></span>");
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Parent:patched",
-      "Parent:willRender",
-      "Parent:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Parent:patched",
+        "Parent:willRender",
+        "Parent:rendered",
+      ]
+    `);
 
     await nextTick();
     expect(fixture.innerHTML).toBe("<span>Patched</span>");
-    expect(["Parent:willPatch", "Parent:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("render in willPatch", async () => {
@@ -1248,29 +1326,38 @@ describe("lifecycle hooks", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<span></span>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.render();
     await nextTick();
     expect(fixture.innerHTML).toBe("<span></span>");
 
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Parent:patched",
-      "Parent:willRender",
-      "Parent:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Parent:patched",
+        "Parent:willRender",
+        "Parent:rendered",
+      ]
+    `);
 
     await nextTick();
-    expect(["Parent:willPatch", "Parent:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("<span>Patched</span>");
   });
 
@@ -1313,19 +1400,21 @@ describe("lifecycle hooks", () => {
     await nextTick();
     app.destroy();
 
-    expect([
-      "onWillStart",
-      "onWillRender",
-      "onRendered",
-      "onMounted",
-      "onWillUpdateProps",
-      "onWillRender",
-      "onRendered",
-      "onWillPatch",
-      "onPatched",
-      "onWillUnmount",
-      "onWillDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "onWillStart",
+        "onWillRender",
+        "onRendered",
+        "onMounted",
+        "onWillUpdateProps",
+        "onWillRender",
+        "onRendered",
+        "onWillPatch",
+        "onPatched",
+        "onWillUnmount",
+        "onWillDestroy",
+      ]
+    `);
   });
 
   test("destroy new children before being mountged", async () => {
@@ -1357,26 +1446,30 @@ describe("lifecycle hooks", () => {
     const app = new App(Parent);
     const parent = await app.mount(fixture);
     expect(fixture.innerHTML).toBe("beforeafter");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.flag = true;
 
     await nextTick();
     expect(fixture.innerHTML).toBe("");
-    expect([
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Parent:willUnmount",
-      "Child:willDestroy",
-      "Parent:willDestroy",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Parent:willUnmount",
+        "Child:willDestroy",
+        "Parent:willDestroy",
+      ]
+    `);
   });
 });

tests/components/props.test.ts

@@ -1,5 +1,5 @@
 import { Component, mount, onWillUpdateProps, useState, xml } from "../../src";
-import { makeTestFixture, nextTick, snapshotEverything, useLogLifecycle } from "../helpers";
+import { makeTestFixture, nextTick, snapshotEverything, steps, useLogLifecycle } from "../helpers";
 
 let fixture: HTMLElement;
 
@@ -272,26 +272,30 @@ test("bound functions are considered 'alike'", async () => {
 
   const parent = await mount(Parent, fixture);
   expect(fixture.innerHTML).toBe("1child");
-  expect([
-    "Parent:setup",
-    "Parent:willStart",
-    "Parent:willRender",
-    "Child:setup",
-    "Child:willStart",
-    "Parent:rendered",
-    "Child:willRender",
-    "Child:rendered",
-    "Child:mounted",
-    "Parent:mounted",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:setup",
+      "Parent:willStart",
+      "Parent:willRender",
+      "Child:setup",
+      "Child:willStart",
+      "Parent:rendered",
+      "Child:willRender",
+      "Child:rendered",
+      "Child:mounted",
+      "Parent:mounted",
+    ]
+  `);
   parent.state.val = 3;
   await nextTick();
-  expect([
-    "Parent:willRender",
-    "Parent:rendered",
-    "Parent:willPatch",
-    "Parent:patched",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:willRender",
+      "Parent:rendered",
+      "Parent:willPatch",
+      "Parent:patched",
+    ]
+  `);
   expect(fixture.innerHTML).toBe("3child");
 });
 
@@ -330,29 +334,33 @@ test(".alike suffix in a simple case", async () => {
   }
 
   const parent = await mount(Parent, fixture);
-  expect([
-    "Parent:setup",
-    "Parent:willStart",
-    "Parent:willRender",
-    "Child:setup",
-    "Child:willStart",
-    "Parent:rendered",
-    "Child:willRender",
-    "Child:rendered",
-    "Child:mounted",
-    "Parent:mounted",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:setup",
+      "Parent:willStart",
+      "Parent:willRender",
+      "Child:setup",
+      "Child:willStart",
+      "Parent:rendered",
+      "Child:willRender",
+      "Child:rendered",
+      "Child:mounted",
+      "Parent:mounted",
+    ]
+  `);
 
   expect(fixture.innerHTML).toBe("01");
   parent.state.counter++;
   await nextTick();
   expect(fixture.innerHTML).toBe("11");
-  expect([
-    "Parent:willRender",
-    "Parent:rendered",
-    "Parent:willPatch",
-    "Parent:patched",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:willRender",
+      "Parent:rendered",
+      "Parent:willPatch",
+      "Parent:patched",
+    ]
+  `);
 });
 
 test(".alike suffix in a list", async () => {
@@ -388,36 +396,40 @@ test(".alike suffix in a list", async () => {
   }
 
   await mount(Parent, fixture);
-  expect([
-    "Parent:setup",
-    "Parent:willStart",
-    "Parent:willRender",
-    "Todo:setup",
-    "Todo:willStart",
-    "Todo:setup",
-    "Todo:willStart",
-    "Parent:rendered",
-    "Todo:willRender",
-    "Todo:rendered",
-    "Todo:willRender",
-    "Todo:rendered",
-    "Todo:mounted",
-    "Todo:mounted",
-    "Parent:mounted",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:setup",
+      "Parent:willStart",
+      "Parent:willRender",
+      "Todo:setup",
+      "Todo:willStart",
+      "Todo:setup",
+      "Todo:willStart",
+      "Parent:rendered",
+      "Todo:willRender",
+      "Todo:rendered",
+      "Todo:willRender",
+      "Todo:rendered",
+      "Todo:mounted",
+      "Todo:mounted",
+      "Parent:mounted",
+    ]
+  `);
 
   expect(fixture.innerHTML).toBe("<button>1</button><button>2V</button>");
   fixture.querySelector("button")?.click();
   await nextTick();
   expect(fixture.innerHTML).toBe("<button>1V</button><button>2V</button>");
-  expect([
-    "Parent:willRender",
-    "Parent:rendered",
-    "Todo:willRender",
-    "Todo:rendered",
-    "Todo:willPatch",
-    "Todo:patched",
-    "Parent:willPatch",
-    "Parent:patched",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:willRender",
+      "Parent:rendered",
+      "Todo:willRender",
+      "Todo:rendered",
+      "Todo:willPatch",
+      "Todo:patched",
+      "Parent:willPatch",
+      "Parent:patched",
+    ]
+  `);
 });

tests/components/props_validation.test.ts

@@ -594,7 +594,7 @@ describe("props validation", () => {
 
   test("props: can be defined with a boolean", async () => {
     class SubComp extends Component {
-      static props = { message: true };
+      static props = { message: true } as const;
     }
     expect(() => {
       validateProps(SubComp as any, {});
@@ -636,7 +636,7 @@ describe("props validation", () => {
 
   test("props: extra props cause an error, part 2", async () => {
     class SubComp extends Component {
-      static props = { message: true };
+      static props = { message: true } as const;
     }
     expect(() => {
       validateProps(SubComp as any, { message: 1, flag: true });

tests/components/reactivity.test.ts

@@ -9,7 +9,7 @@ import {
   xml,
   toRaw,
 } from "../../src";
-import { makeTestFixture, nextTick, snapshotEverything, useLogLifecycle } from "../helpers";
+import { makeTestFixture, nextTick, snapshotEverything, steps, useLogLifecycle } from "../helpers";
 
 let fixture: HTMLElement;
 
@@ -175,30 +175,34 @@ describe("reactivity in lifecycle", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("2");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.content = null;
     parent.state.renderChild = false;
     await nextTick();
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("Component is automatically subscribed to reactive object received as prop", async () => {

tests/components/rendering.test.ts

@@ -6,6 +6,7 @@ import {
   useLogLifecycle,
   makeDeferred,
   nextMicroTick,
+  steps,
 } from "../helpers";
 
 let fixture: HTMLElement;
@@ -41,28 +42,32 @@ describe("rendering semantics", () => {
     const parent = await mount(Parent, fixture);
 
     expect(fixture.innerHTML).toBe("Achild");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.value = "B";
     await nextTick();
     expect(fixture.innerHTML).toBe("Bchild");
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("can force a render to update sub tree", async () => {
@@ -167,18 +172,20 @@ describe("rendering semantics", () => {
     const parent = await mount(Parent, fixture, { env });
 
     expect(fixture.innerHTML).toBe("parentAchild3");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     value = 4;
     parent.render(true);
@@ -187,30 +194,34 @@ describe("rendering semantics", () => {
     await nextMicroTick();
     await nextMicroTick();
     await nextMicroTick();
-    expect([
-      "Parent:willRender",
-      "Child:willUpdateProps",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:willUpdateProps",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+      ]
+    `);
 
     parent.state.value = "B";
 
     await nextTick();
 
     expect(fixture.innerHTML).toBe("parentBchild4");
-    expect([
-      "Parent:willRender",
-      "Child:willUpdateProps",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Child:willPatch",
-      "Child:patched",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Child:willUpdateProps",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Child:willPatch",
+        "Child:patched",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("props are reactive", async () => {
@@ -235,23 +246,32 @@ describe("rendering semantics", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("1");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.b = 3;
     await nextTick();
     expect(fixture.innerHTML).toBe("3");
-    expect(["Child:willRender", "Child:rendered", "Child:willPatch", "Child:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
   });
 
   test("props are reactive (nested prop)", async () => {
@@ -278,37 +298,48 @@ describe("rendering semantics", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("1");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.state.b.c = 3; // parent is now subscribed to 'b' key
     await nextTick();
     expect(fixture.innerHTML).toBe("3");
-    expect(["Child:willRender", "Child:rendered", "Child:willPatch", "Child:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
 
     parent.state.b = { c: 444 }; // triggers a parent and a child render
     await nextTick();
     expect(fixture.innerHTML).toBe("444");
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willPatch",
-      "Parent:patched",
-      "Child:willPatch",
-      "Child:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willPatch",
+        "Parent:patched",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
   });
 
   test("works as expected for dynamic number of props", async () => {
@@ -366,41 +397,45 @@ describe("rendering semantics", () => {
 
     const parent = await mount(A, fixture);
     expect(fixture.innerHTML).toBe("11");
-    expect([
-      "A:setup",
-      "A:willStart",
-      "A:willRender",
-      "B:setup",
-      "B:willStart",
-      "A:rendered",
-      "B:willRender",
-      "C:setup",
-      "C:willStart",
-      "B:rendered",
-      "C:willRender",
-      "C:rendered",
-      "C:mounted",
-      "B:mounted",
-      "A:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:setup",
+        "A:willStart",
+        "A:willRender",
+        "B:setup",
+        "B:willStart",
+        "A:rendered",
+        "B:willRender",
+        "C:setup",
+        "C:willStart",
+        "B:rendered",
+        "C:willRender",
+        "C:rendered",
+        "C:mounted",
+        "B:mounted",
+        "A:mounted",
+      ]
+    `);
 
     parent.state.obj.val = 3;
     await nextTick();
     expect(fixture.innerHTML).toBe("33");
-    expect([
-      "A:willRender",
-      "A:rendered",
-      "C:willRender",
-      "C:rendered",
-      "A:willPatch",
-      "A:patched",
-      "C:willPatch",
-      "C:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "A:willRender",
+        "A:rendered",
+        "C:willRender",
+        "C:rendered",
+        "A:willPatch",
+        "A:patched",
+        "C:willPatch",
+        "C:patched",
+      ]
+    `);
 
     def.resolve();
     await nextTick();
-    expect([]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`Array []`);
   });
 });
 
@@ -431,51 +466,67 @@ test("force render in case of existing render", async () => {
   }
   const parent = await mount(A, fixture);
   expect(fixture.innerHTML).toBe("C1");
-  expect([
-    "A:setup",
-    "A:willStart",
-    "A:willRender",
-    "B:setup",
-    "B:willStart",
-    "A:rendered",
-    "B:willRender",
-    "C:setup",
-    "C:willStart",
-    "B:rendered",
-    "C:willRender",
-    "C:rendered",
-    "C:mounted",
-    "B:mounted",
-    "A:mounted",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "A:setup",
+      "A:willStart",
+      "A:willRender",
+      "B:setup",
+      "B:willStart",
+      "A:rendered",
+      "B:willRender",
+      "C:setup",
+      "C:willStart",
+      "B:rendered",
+      "C:willRender",
+      "C:rendered",
+      "C:mounted",
+      "B:mounted",
+      "A:mounted",
+    ]
+  `);
 
   // trigger a new rendering, blocked in B
   parent.state.val = 2;
   await nextTick();
-  expect(["A:willRender", "B:willUpdateProps", "A:rendered"]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "A:willRender",
+      "B:willUpdateProps",
+      "A:rendered",
+    ]
+  `);
 
   // initiate a new render with deep=true. it should cancel the current render
   // and also be blocked in B
   parent.render(true);
   await nextTick();
-  expect(["A:willRender", "B:willUpdateProps", "A:rendered"]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "A:willRender",
+      "B:willUpdateProps",
+      "A:rendered",
+    ]
+  `);
 
   def.resolve();
   await nextTick();
   // we check here that the render reaches C (so, that it was properly forced)
-  expect([
-    "B:willRender",
-    "C:willUpdateProps",
-    "B:rendered",
-    "C:willRender",
-    "C:rendered",
-    "A:willPatch",
-    "B:willPatch",
-    "C:willPatch",
-    "C:patched",
-    "B:patched",
-    "A:patched",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "B:willRender",
+      "C:willUpdateProps",
+      "B:rendered",
+      "C:willRender",
+      "C:rendered",
+      "A:willPatch",
+      "B:willPatch",
+      "C:willPatch",
+      "C:patched",
+      "B:patched",
+      "A:patched",
+    ]
+  `);
 });
 
 test("children, default props and renderings", async () => {
@@ -503,26 +554,30 @@ test("children, default props and renderings", async () => {
   const parent = await mount(Parent, fixture);
 
   expect(fixture.innerHTML).toBe("Achild");
-  expect([
-    "Parent:setup",
-    "Parent:willStart",
-    "Parent:willRender",
-    "Child:setup",
-    "Child:willStart",
-    "Parent:rendered",
-    "Child:willRender",
-    "Child:rendered",
-    "Child:mounted",
-    "Parent:mounted",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:setup",
+      "Parent:willStart",
+      "Parent:willRender",
+      "Child:setup",
+      "Child:willStart",
+      "Parent:rendered",
+      "Child:willRender",
+      "Child:rendered",
+      "Child:mounted",
+      "Parent:mounted",
+    ]
+  `);
 
   parent.state.value = "B";
   await nextTick();
   expect(fixture.innerHTML).toBe("Bchild");
-  expect([
-    "Parent:willRender",
-    "Parent:rendered",
-    "Parent:willPatch",
-    "Parent:patched",
-  ]).toBeLogged();
+  expect(steps.splice(0)).toMatchInlineSnapshot(`
+    Array [
+      "Parent:willRender",
+      "Parent:rendered",
+      "Parent:willPatch",
+      "Parent:patched",
+    ]
+  `);
 });

tests/components/slots.test.ts

@@ -1673,6 +1673,31 @@ describe("slots", () => {
     expect(fixture.innerHTML).toBe("<div><div><p>Ablip</p><div><p>Bblip</p></div></div></div>");
   });
 
+  test("named slot inside named slot in t-component", async () => {
+    class Child extends Component {
+      static template = xml`<t t-slot="brol"/>`;
+    }
+    class Parent extends Component {
+      static template = xml`
+        <Child>
+          <t t-set-slot="brol">
+            outer
+            <t t-component="Child">
+              <t t-set-slot="brol">
+                <t t-esc="value"/>
+              </t>
+            </t>
+          </t>
+        </Child>`;
+      static components = { Child };
+      Child = Child;
+      value = "inner";
+    }
+    await mount(Parent, fixture);
+
+    expect(fixture.innerHTML).toBe(" outer inner");
+  });
+
   test("can render only empty slot", async () => {
     class Parent extends Component {
       static template = xml`<t t-slot="default"/>`;

tests/components/t_component.test.ts

@@ -1,5 +1,5 @@
 import { Component, mount, useState, xml } from "../../src";
-import { makeTestFixture, nextTick, snapshotEverything, useLogLifecycle } from "../helpers";
+import { makeTestFixture, nextTick, snapshotEverything, steps, useLogLifecycle } from "../helpers";
 
 let fixture: HTMLElement;
 
@@ -29,18 +29,20 @@ describe("t-component", () => {
     await mount(Parent, fixture);
 
     expect(fixture.innerHTML).toBe("<div>child</div>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
   });
 
   test("switching dynamic component", async () => {
@@ -68,36 +70,40 @@ describe("t-component", () => {
 
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<div>child a</div>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "ChildA:setup",
-      "ChildA:willStart",
-      "Parent:rendered",
-      "ChildA:willRender",
-      "ChildA:rendered",
-      "ChildA:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "ChildA:setup",
+        "ChildA:willStart",
+        "Parent:rendered",
+        "ChildA:willRender",
+        "ChildA:rendered",
+        "ChildA:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     parent.Child = ChildB;
     parent.render();
     await nextTick();
     expect(fixture.innerHTML).toBe("child b");
-    expect([
-      "Parent:willRender",
-      "ChildB:setup",
-      "ChildB:willStart",
-      "Parent:rendered",
-      "ChildB:willRender",
-      "ChildB:rendered",
-      "Parent:willPatch",
-      "ChildA:willUnmount",
-      "ChildA:willDestroy",
-      "ChildB:mounted",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "ChildB:setup",
+        "ChildB:willStart",
+        "Parent:rendered",
+        "ChildB:willRender",
+        "ChildB:rendered",
+        "Parent:willPatch",
+        "ChildA:willUnmount",
+        "ChildA:willDestroy",
+        "ChildB:mounted",
+        "Parent:patched",
+      ]
+    `);
   });
 
   test("can switch between dynamic components without the need for a t-key", async () => {

tests/components/t_foreach.test.ts

@@ -4,6 +4,7 @@ import {
   nextAppError,
   nextTick,
   snapshotEverything,
+  steps,
   useLogLifecycle,
 } from "../helpers";
 
@@ -91,23 +92,25 @@ describe("list of components", () => {
     expect(fixture.innerHTML).toBe(
       "<div><ul><li><div>1</div></li><li><div>2</div></li></ul></div>"
     );
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
   });
 
   test("reconciliation alg works for t-foreach in t-foreach", async () => {

tests/components/t_model.test.ts

@@ -331,6 +331,32 @@ describe("t-model directive", () => {
     expect(fixture.innerHTML).toBe("<div><input><span>test</span></div>");
   });
 
+  test(".trim modifier implies .lazy modifier", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <div>
+            <input t-model.trim="state.text"/>
+            <span><t t-esc="state.text"/></span>
+        </div>
+      `;
+      state = useState({ text: "" });
+    }
+    const comp = await mount(SomeComponent, fixture);
+
+    expect(fixture.innerHTML).toBe("<div><input><span></span></div>");
+
+    const input = fixture.querySelector("input")!;
+    input.value = "test ";
+    input.dispatchEvent(new Event("input"));
+    await nextTick();
+    expect(comp.state.text).toBe("");
+    expect(fixture.innerHTML).toBe("<div><input><span></span></div>");
+    input.dispatchEvent(new Event("change"));
+    await nextTick();
+    expect(comp.state.text).toBe("test");
+    expect(fixture.innerHTML).toBe("<div><input><span>test</span></div>");
+  });
+
   test(".number modifier", async () => {
     class SomeComponent extends Component {
       static template = xml`

tests/helpers.ts

@@ -137,7 +137,7 @@ export function snapshotEverything() {
   };
 }
 
-const steps: string[] = [];
+export const steps: string[] = [];
 
 export function logStep(step: string) {
   steps.push(step);

tests/reactivity.test.ts

@@ -17,6 +17,7 @@ import {
   nextMicroTick,
   nextTick,
   snapshotEverything,
+  steps,
   useLogLifecycle,
 } from "./helpers";
 
@@ -992,32 +993,33 @@ describe("Reactivity", () => {
     const obj2 = createReactive({ b: {} }, () => n2++);
     const obj3 = createReactive({ c: {} }, () => n3++);
 
+    // assign the same object should'nt notify reactivity
     obj2.b = obj2.b;
     obj2.b;
     obj3.c = obj3.c;
     obj3.c;
     expect(n1).toBe(0);
-    expect(n2).toBe(1);
-    expect(n3).toBe(1);
+    expect(n2).toBe(0);
+    expect(n3).toBe(0);
 
     obj2.b = obj1;
     obj2.b;
     obj3.c = obj1;
     obj3.c;
     expect(n1).toBe(0);
-    expect(n2).toBe(2);
-    expect(n3).toBe(2);
+    expect(n2).toBe(1);
+    expect(n3).toBe(1);
 
     obj1.a = obj1.a + 2;
     obj1.a;
     expect(n1).toBe(1);
-    expect(n2).toBe(2);
-    expect(n3).toBe(2);
+    expect(n2).toBe(1);
+    expect(n3).toBe(1);
 
     obj2.b.a = obj2.b.a + 1;
     expect(n1).toBe(2);
-    expect(n2).toBe(3);
-    expect(n3).toBe(2);
+    expect(n2).toBe(2);
+    expect(n3).toBe(1);
   });
 
   test("reactive inside other: reading the inner reactive from outer doesn't affect the inner's subscriptions", async () => {
@@ -1850,37 +1852,41 @@ describe("Reactivity: useState", () => {
       }
     }
     await mount(Parent, fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     expect(fixture.innerHTML).toBe("<div><span>123</span><span>123</span></div>");
     testContext.value = 321;
     await nextTick();
-    expect([
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willPatch",
-      "Child:patched",
-      "Child:willPatch",
-      "Child:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willPatch",
+        "Child:patched",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("<div><span>321</span><span>321</span></div>");
   });
 
@@ -1904,38 +1910,49 @@ describe("Reactivity: useState", () => {
     }
 
     await mount(Parent, fixture);
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     expect(fixture.innerHTML).toBe("<div><span>123</span><span>123</span></div>");
     testContext.value = 321;
     await nextMicroTick();
     await nextMicroTick();
-    expect([
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("<div><span>123</span><span>123</span></div>");
 
     await nextTick();
-    expect(["Child:willPatch", "Child:patched", "Child:willPatch", "Child:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willPatch",
+        "Child:patched",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
     expect(fixture.innerHTML).toBe("<div><span>321</span><span>321</span></div>");
   });
 
@@ -1969,43 +1986,54 @@ describe("Reactivity: useState", () => {
 
     await mount(GrandFather, fixture);
     expect(fixture.innerHTML).toBe("<div><span>123</span><div><span>123</span></div></div>");
-    expect([
-      "GrandFather:setup",
-      "GrandFather:willStart",
-      "GrandFather:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:setup",
-      "Parent:willStart",
-      "GrandFather:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-      "Child:mounted",
-      "GrandFather:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "GrandFather:setup",
+        "GrandFather:willStart",
+        "GrandFather:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:setup",
+        "Parent:willStart",
+        "GrandFather:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+        "Child:mounted",
+        "GrandFather:mounted",
+      ]
+    `);
 
     testContext.value = 321;
     await nextMicroTick();
     await nextMicroTick();
     expect(fixture.innerHTML).toBe("<div><span>123</span><div><span>123</span></div></div>");
-    expect([
-      "Child:willRender",
-      "Child:rendered",
-      "Child:willRender",
-      "Child:rendered",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willRender",
+        "Child:rendered",
+      ]
+    `);
 
     await nextTick();
     expect(fixture.innerHTML).toBe("<div><span>321</span><div><span>321</span></div></div>");
-    expect(["Child:willPatch", "Child:patched", "Child:willPatch", "Child:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willPatch",
+        "Child:patched",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
   });
 
   test("one components can subscribe twice to same context", async () => {
@@ -2181,38 +2209,49 @@ describe("Reactivity: useState", () => {
     }
     const parent = await mount(Parent, fixture);
     expect(fixture.innerHTML).toBe("<div><span>123</span></div>");
-    expect([
-      "Parent:setup",
-      "Parent:willStart",
-      "Parent:willRender",
-      "Child:setup",
-      "Child:willStart",
-      "Parent:rendered",
-      "Child:willRender",
-      "Child:rendered",
-      "Child:mounted",
-      "Parent:mounted",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:setup",
+        "Parent:willStart",
+        "Parent:willRender",
+        "Child:setup",
+        "Child:willStart",
+        "Parent:rendered",
+        "Child:willRender",
+        "Child:rendered",
+        "Child:mounted",
+        "Parent:mounted",
+      ]
+    `);
 
     testContext.a = 321;
     await nextTick();
-    expect(["Child:willRender", "Child:rendered", "Child:willPatch", "Child:patched"]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Child:willRender",
+        "Child:rendered",
+        "Child:willPatch",
+        "Child:patched",
+      ]
+    `);
 
     parent.state.flag = false;
     await nextTick();
     expect(fixture.innerHTML).toBe("<div></div>");
-    expect([
-      "Parent:willRender",
-      "Parent:rendered",
-      "Parent:willPatch",
-      "Child:willUnmount",
-      "Child:willDestroy",
-      "Parent:patched",
-    ]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`
+      Array [
+        "Parent:willRender",
+        "Parent:rendered",
+        "Parent:willPatch",
+        "Child:willUnmount",
+        "Child:willDestroy",
+        "Parent:patched",
+      ]
+    `);
 
     testContext.a = 456;
     await nextTick();
-    expect([]).toBeLogged();
+    expect(steps.splice(0)).toMatchInlineSnapshot(`Array []`);
   });
 
   test("destroyed component before being mounted is inactive", async () => {

tools/devtools/manifest-chrome.json

@@ -1,6 +1,6 @@
 {
   "name": "Owl devtools",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "manifest_version": 3,
   "description": "Chrome devtools extension for Odoo Owl framework",
   "icons": {

tools/devtools/manifest-firefox.json

@@ -1,6 +1,6 @@
 {
   "name": "Owl devtools",
-  "version": "1.0",
+  "version": "1.0.0",
   "description": "Firefox devtools extension for Odoo Owl framework",
   "manifest_version": 2,
   "browser_specific_settings": {
@@ -29,7 +29,7 @@
     "scripts": ["background.js"]
   },
   "devtools_page": "devtools_app/devtools.html",
-  "content_security_policy": "script-src 'self' 'unsafe-eval' blob:; object-src 'self'",
+  "content_security_policy": "script-src 'self'; object-src 'self'",
   "content_scripts": [
     {
       "matches": ["<all_urls>"],

tools/devtools/src/background.js

@@ -1,9 +1,7 @@
-import { IS_FIREFOX, getActiveTabURL } from "./utils";
+import { IS_FIREFOX, getActiveTabURL, browserInstance } from "./utils";
 
 let owlStatus = 0;
 
-const browserInstance = IS_FIREFOX ? browser : chrome;
-
 // Used to keep track of the tabs where the owl devtools have been opened
 const activePanels = new Map();
 
@@ -71,6 +69,9 @@ function checkOwlStatus(tabId) {
 browserInstance.runtime.onMessage.addListener(async (message, sender, sendResponse) => {
   // Send back the owl status to the sender
   if (message.type === "getOwlStatus") {
+    if (IS_FIREFOX) {
+      return { result: owlStatus };
+    }
     sendResponse({ result: owlStatus });
     return true;
   } else if (message.type === "owlStatus") {
@@ -112,11 +113,10 @@ browserInstance.runtime.onMessage.addListener(async (message, sender, sendRespon
     }, 750);
     activePanels.set(message.id, { port: port, expirationTimeout: expirationTimeout });
     // This is solely for firefox which doesnt allow access to the chrome.tabs api inside devtools
+    // We therefore only use the firefox syntax to send the response here
   } else if (message.type === "getActiveTabURL") {
-    getActiveTabURL().then((tab) => {
-      sendResponse({ result: tab });
-    });
-    return true;
+    const tab = await getActiveTabURL();
+    return { result: tab };
   } else {
     const destinationPanel = activePanels.get(sender.tab.id);
     if (destinationPanel) {

tools/devtools/src/content.js

@@ -1,5 +1,5 @@
 import globalHook from "./page_scripts/owl_devtools_global_hook";
-import { IS_FIREFOX } from "./utils";
+import { IS_FIREFOX, browserInstance } from "./utils";
 
 // Relays the owlDevtools__... type top window messages to the background script so that it can relay it to the devtools app
 window.addEventListener(
@@ -7,7 +7,7 @@ window.addEventListener(
   function (event) {
     if (event.data.type && event.data.source === "owl-devtools") {
       try {
-        chrome.runtime.sendMessage(
+        browserInstance.runtime.sendMessage(
           event.data.data
             ? { type: event.data.type, data: event.data.data, origin: event.data.origin }
             : { type: event.data.type, origin: event.data.origin }

tools/devtools/src/devtools_app/devtools.js

@@ -1,7 +1,6 @@
-import { IS_FIREFOX } from "../utils";
+import { IS_FIREFOX, browserInstance } from "../utils";
 
 let created = false;
-let browserInstance = IS_FIREFOX ? browser : chrome;
 
 // Try to load the owl panel each 1000 ms in case it (re)appears on the page later on
 const checkInterval = setInterval(createPanelsIfOwl, 1000);

tools/devtools/src/devtools_app/devtools_window/components_tab/component_search_bar/component_search_bar.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <templates xml:space="preserve">
   <t t-name="devtools.ComponentSearchBar" owl="1">
-    <div class="pointer-icon ms-1 px-2 py-1" t-on-click.stop='() => this.store.toggleSelector()'>
-      <i title="Select an element in the page to inspect the corresponding component" class="fa fa-mouse-pointer" t-attf-style="color: {{store.componentSearch.activeSelector ? 'var(--active-icon)' : 'var(--text-color)'}};"></i>
+    <div class="mouse-icon p-1" t-on-click.stop='() => this.store.toggleSelector()'>
+      <i title="Select an element in the page to inspect the corresponding component" class="fa fa-fw fa-mouse-pointer" t-attf-style="color: {{store.componentSearch.activeSelector ? 'var(--active-icon)' : 'var(--text-color)'}};"></i>
     </div>
     <div class="icons-separator"/>
     <div class="d-flex align-items-center ms-2 flex-grow-1">

tools/devtools/src/devtools_app/devtools_window/components_tab/components_tab.js

@@ -15,6 +15,7 @@ export class ComponentsTab extends Component {
     this.store = useStore();
     this.flushRendersTimeout = false;
     useExternalListener(document, "keydown", this.onKeyboardEvent);
+    useExternalListener(window, "resize", this.onWindowResize);
 
     onWillUnmount(() => {
       window.removeEventListener("mousemove", this.onMouseMove);
@@ -53,9 +54,11 @@ export class ComponentsTab extends Component {
 
   // Adjust the position of the split between the left and right right window of the components tab
   onMouseMove = (event) => {
+    const minWidth = (147 / window.innerWidth) * 100;
+    const maxWidth = 100 - (100 / window.innerWidth) * 100;
     this.store.splitPosition = Math.max(
-      Math.min((event.clientX / window.innerWidth) * 100, 85),
-      15
+      Math.min((event.clientX / window.innerWidth) * 100, maxWidth),
+      minWidth
     );
   };
 
@@ -64,4 +67,11 @@ export class ComponentsTab extends Component {
     window.removeEventListener("mousemove", this.onMouseMove);
     window.removeEventListener("mouseup", this.onMouseUp);
   };
+
+  onWindowResize = () => {
+    const minWidth = (147 / window.innerWidth) * 100;
+    if (minWidth <= 100) {
+      this.store.splitPosition = Math.max(this.store.splitPosition, minWidth);
+    }
+  };
 }

tools/devtools/src/devtools_app/devtools_window/components_tab/details_window/object_tree_element/object_tree_element.xml

@@ -2,8 +2,8 @@
 <templates xml:space="preserve">
   <t t-name="devtools.ObjectTreeElement" owl="1">
     <div class="m-0 p-0 text-nowrap w-100 object-line"
-      t-att-class="props.class"
-      t-on-click.stop="() => this.store.toggleObjectTreeElementsDisplay(this.props.object)" 
+      t-att-class="props.class + (props.object.hasChildren ? ' bg-feedback' : '')"
+      t-on-click.stop="() => this.store.toggleObjectTreeElementsDisplay(this.props.object)"
       t-on-contextmenu.prevent="openMenu" 
     >
       <div t-attf-style="padding-left: {{objectPadding}}rem">

tools/devtools/src/devtools_app/devtools_window/components_tab/tree_element/tree_element.js

@@ -1,11 +1,9 @@
 /** @odoo-module **/
 
-import { isElementInCenterViewport, minimizeKey, IS_FIREFOX } from "../../../../utils";
+import { isElementInCenterViewport, minimizeKey, browserInstance } from "../../../../utils";
 import { useStore } from "../../../store/store";
 import { HighlightText } from "./highlight_text/highlight_text";
 
-const browserInstance = IS_FIREFOX ? browser : chrome;
-
 const { Component, useRef, useState, useEffect, onMounted } = owl;
 
 export class TreeElement extends Component {

tools/devtools/src/devtools_app/devtools_window/devtools_window.xml

@@ -16,9 +16,9 @@
               <option t-att-value="frame"><t t-esc="frame"/></option>
             </t>
           </select>
-          <i class="ms-auto p-1 me-1 lg-icon fa fa-question-circle pointer-icon" title="Open devtools doc" t-on-click.stop="() => this.store.openDocumentation()"></i>
-          <i class="p-1 me-1 lg-icon fa pointer-icon" title="Toggle dark mode" t-att-class="{ 'fa-sun-o': store.settings.darkMode, 'fa-moon-o' : !store.settings.darkMode}" t-on-click.stop="() => this.store.toggleDarkMode()"></i>
-          <i class="p-1 me-1 lg-icon fa fa-repeat pointer-icon" title="Refresh extension" t-on-click.stop="() => this.store.refreshExtension()"></i>
+          <i class="ms-auto p-1 me-1 lg-icon fa fa-question-circle navbar-icon" title="Open devtools doc" t-on-click.stop="() => this.store.openDocumentation()"></i>
+          <i class="p-1 me-1 lg-icon fa navbar-icon" title="Toggle dark mode" t-att-class="{ 'fa-sun-o': store.settings.darkMode, 'fa-moon-o' : !store.settings.darkMode}" t-on-click.stop="() => this.store.toggleDarkMode()"></i>
+          <i class="p-1 me-1 lg-icon fa fa-repeat navbar-icon" title="Refresh extension" t-on-click.stop="() => this.store.refreshExtension()"></i>
         </div>
         <ComponentsTab t-if="store.page === 'ComponentsTab'"/>
         <ProfilerTab t-if="store.page === 'ProfilerTab'"/>

tools/devtools/src/devtools_app/devtools_window/profiler_tab/profiler_tab.xml

@@ -3,20 +3,20 @@
   <t t-name="devtools.ProfilerTab" owl="1">
     <div class="position-relative overflow-hidden d-flex flex-column h-100">
       <div class="panel-top d-flex align-items-center">
-        <i title="Start/Stop Recording" class="fa fa-circle pointer-icon ms-1 p-1" t-attf-style="color: {{store.activeRecorder ? 'var(--active-recorder)' : 'var(--text-color)'}};" t-on-click.stop="() => this.store.toggleRecording()" aria-hidden="true"></i>
-        <i title="Clear events" class="fa fa-ban pointer-icon p-1 px-2" t-on-click.stop="() => this.store.clearEventsConsole()" aria-hidden="true"></i>
-        <div class="icons-separator mx-1"/>
-        <select class="form-select form-select-sm custom-select border-0" t-on-change="selectDisplayMode">
+        <i title="Start/Stop Recording" class="fa fa-circle profiler-icon p-2" t-attf-style="color: {{store.activeRecorder ? 'var(--active-recorder)' : 'var(--text-color)'}};" t-on-click.stop="() => this.store.toggleRecording()" aria-hidden="true"></i>
+        <i title="Clear events" class="fa fa-ban profiler-icon p-2" t-on-click.stop="() => this.store.clearEventsConsole()" aria-hidden="true"></i>
+        <div class="icons-separator"/>
+        <select class="form-select form-select-sm custom-select pointer-icon border-0" t-on-change="selectDisplayMode">
           <option t-att-selected="store.eventsTreeView" value="Tree">Tree view</option>
           <option t-att-selected="!store.eventsTreeView" value="List">Events log</option>
         </select>
-        <i title="Collapse All" type="button" class="fa fa-list me-2" t-on-click="() => this.store.collapseAll()" t-attf-style="{{store.eventsTreeView ? '' : 'visibility: hidden;'}}"></i>
+        <i title="Collapse All" class="fa fa-list p-2 profiler-icon" t-on-click="() => this.store.collapseAll()" t-attf-style="{{store.eventsTreeView ? '' : 'display: none;'}}"></i>
         <div class="icons-separator"/>
-        <label class="mx-2 form-check-label pointer-icon" title="Trace renderings in console">
-          <input type="checkbox" class="form-check-input me-1" t-att-checked="store.traceRenderings" t-on-input="() => this.store.toggleTracing()"/> Trace Renderings
+        <label class="p-1 mx-1 form-check-label pointer-icon" title="Trace renderings in console">
+          <input type="checkbox" class="form-check-input me-1 pointer-icon" t-att-checked="store.traceRenderings" t-on-input="() => this.store.toggleTracing()"/> Trace Renderings
         </label>
-        <label class="mx-2 form-check-label pointer-icon" title="Trace subscriptions in console (warning: it is VERY verbose)">
-          <input type="checkbox" class="form-check-input me-1" t-att-checked="store.traceSubscriptions" t-on-input="() => this.store.toggleSubscriptionTracing()"/> Trace Subscriptions
+        <label class="p-1 mx-1 form-check-label pointer-icon" title="Trace subscriptions in console (warning: it is VERY verbose)">
+          <input type="checkbox" class="form-check-input me-1 pointer-icon" t-att-checked="store.traceSubscriptions" t-on-input="() => this.store.toggleSubscriptionTracing()"/> Trace Subscriptions
         </label>
         <!-- <EventSearchBar/> -->
       </div>

tools/devtools/src/devtools_app/store/store.js

@@ -1,9 +1,7 @@
 const { reactive, useState, toRaw } = owl;
-import { fuzzySearch, IS_FIREFOX, getActiveTabURL } from "../../utils";
+import { fuzzySearch, IS_FIREFOX, getActiveTabURL, browserInstance } from "../../utils";
 import globalHook from "../../page_scripts/owl_devtools_global_hook";
 
-const browserInstance = IS_FIREFOX ? browser : chrome;
-
 // Main store which contains all states that needs to be maintained throughout all components in the devtools app
 export const store = reactive({
   devtoolsId: 0,
@@ -115,6 +113,9 @@ export const store = reactive({
     }
     keepEnvLit(details);
     this.activeComponent = details;
+    if (this.componentSearch.search.length) {
+      this.updateSearch(this.componentSearch.search);
+    }
   },
 
   // Select a component by retrieving its details from the page based on its path
@@ -146,6 +147,7 @@ export const store = reactive({
     }
     component.selected = true;
     highlightChildren(component);
+    this.highlightComponent(path);
     const details = await evalFunctionInWindow(
       "getComponentDetails",
       [component.path],
@@ -346,7 +348,7 @@ export const store = reactive({
 
   // Expand the children of the input object property and load it from page if necessary
   async toggleObjectTreeElementsDisplay(obj) {
-    if (!obj.hasChildren) {
+    if (!obj.hasChildren || window.getSelection().toString().length) {
       return;
     }
     // Since it is sometimes impossible (and always ineffective) to load all descendants of a property
@@ -939,10 +941,9 @@ function arraysEqual(arr1, arr2) {
 
 async function getTabURL() {
   if (IS_FIREFOX) {
-    // This happens in firefox when the method is called inside devtools so we ask the background to execute it instead
-    browserInstance.runtime.sendMessage({ type: "getActiveTabURL" }).then((response) => {
-      return response.result;
-    });
+    // It is not possible to run getActiveTabURL inside the devtools when using firefox so we ask the background to execute it instead
+    const response = await browserInstance.runtime.sendMessage({ type: "getActiveTabURL" });
+    return response.result;
   } else {
     return await getActiveTabURL();
   }

tools/devtools/src/main.css

@@ -26,6 +26,8 @@
   --text-selected: white;
   --menu-highlight-bg: rgb(201, 201, 201);
   --version-bg: teal;
+  --hover-bg: #ebebeb;
+  --navbar-hover-bg: #d3d3d3;
   /* to change the color here, put it in stroke='%23[color in hexadecimal]' */
   --select-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23444444' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
 }
@@ -52,6 +54,8 @@
   --text-selected: #c9c9c9;
   --menu-highlight-bg: rgb(65, 65, 65);
   --version-bg: #805900ad;
+  --hover-bg: #575757;
+  --navbar-hover-bg: #6b6b6b;
   color-scheme: dark;
   /* to change the color here, put it in stroke='%23[color in hexadecimal]' */
   --select-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23c9c9c9' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
@@ -82,6 +86,10 @@
   color: var(--text-color) !important;
 }
 
+.form-check-label {
+  user-select: none;
+}
+
 .navbar-btn {
   height: 23px;
   padding: 0.5rem;
@@ -244,7 +252,7 @@
 .search-input {
   background-color: var(--background-color);
   color: var(--text-color);
-  padding: 0.4rem 0rem;
+  padding: 0.37rem 0rem;
 }
 
 .search-icon {
@@ -255,6 +263,35 @@
 .utility-icon {
   cursor: pointer;
   font-size: 1.2em;
+  border-radius: 35%;
+}
+
+.mouse-icon {
+  border-radius: 35%;
+  cursor: pointer;
+  padding-left: 0.4rem !important;
+}
+
+.profiler-icon {
+  border-radius: 35%;
+  cursor: pointer;
+}
+
+.utility-icon:hover, .mouse-icon:hover, .profiler-icon:hover, .bg-feedback:hover {
+  background-color: var(--hover-bg);
+}
+
+.navbar-icon {
+  border-radius: 35%;
+  cursor: pointer;
+}
+
+.navbar-icon:hover {
+  background-color: var(--navbar-hover-bg);
+}
+
+.bg-feedback {
+  border-radius: 5%;
 }
 
 .lg-icon {
@@ -281,7 +318,7 @@
   color: var(--text-color);
   background-color: var(--background-color);
   border: 1px solid gray;
-  z-index: 1;
+  z-index: 2;
   box-shadow: 1px 2px 5px #888;
   font-family: var(--bs-font-sans-serif);
 }

tools/devtools/src/page_scripts/owl_devtools_global_hook.js

@@ -49,6 +49,7 @@
       this.traceRenderings = false;
       this.traceSubscriptions = false;
       this.requestedFrame = false;
+      this.enabledSelector = false;
       this.eventsBatch = [];
       // Object which defines how different types of data should be displayed when passed to the devtools
       this.serializer = {
@@ -175,6 +176,7 @@
 
     initDevtools(frame = "top") {
       if (!this.devtoolsInit) {
+        document.addEventListener("mouseover", this.HTMLSelector, { capture: true });
         this.frame = frame;
         const self = this;
         // Flush the events batcher when a root render is completed
@@ -606,28 +608,33 @@
     // Identify the hovered component based on the corresponding DOM element and send the Select message
     // when the target changes
     HTMLSelector = (ev) => {
-      const target = ev.target;
-      if (!this.currentSelectedElement || !target.isEqualNode(this.currentSelectedElement)) {
-        const path = this.getElementPath(target);
-        this.highlightComponent(path);
-        this.currentSelectedElement = target;
-        window.top.postMessage({
-          source: "owl-devtools",
-          type: "SelectElement",
-          data: path,
-        });
+      if (this.enabledSelector) {
+        const target = ev.target;
+        if (!this.currentSelectedElement || !target.isEqualNode(this.currentSelectedElement)) {
+          const path = this.getElementPath(target);
+          this.highlightComponent(path);
+          this.currentSelectedElement = target;
+          window.top.postMessage({
+            source: "owl-devtools",
+            type: "SelectElement",
+            data: path,
+          });
+        }
+      } else {
+        this.removeHighlights();
       }
     };
 
     // Activate the HTML selector tool
     enableHTMLSelector() {
-      document.addEventListener("mouseover", this.HTMLSelector, { capture: true });
+      this.enabledSelector = true;
       document.addEventListener("click", this.disableHTMLSelector, { capture: true });
-      document.addEventListener("mouseout", this.removeHighlights, { capture: true });
+      document.addEventListener("scroll", this.removeHighlights, { capture: true });
     }
 
     // Diasble the HTML selector tool
     disableHTMLSelector = (ev = undefined) => {
+      this.enabledSelector = false;
       if (ev) {
         if (!ev.isTrusted) {
           return;
@@ -636,9 +643,8 @@
         ev.preventDefault();
       }
       this.removeHighlights();
-      document.removeEventListener("mouseover", this.HTMLSelector, { capture: true });
       document.removeEventListener("click", this.disableHTMLSelector, { capture: true });
-      document.removeEventListener("mouseout", this.removeHighlights, { capture: true });
+      document.removeEventListener("scroll", this.removeHighlights, { capture: true });
       window.top.postMessage({
         source: "owl-devtools",
         type: "StopSelector",
@@ -748,7 +754,7 @@
           child.contentType = "object";
           child.content = this.serializer.serializeItem(Object.getPrototypeOf(parentObj), true);
           child.hasChildren = true;
-          if (!oldTree && type === "env") {
+          if (!oldTree && type === "env" && Object.getPrototypeOf(parentObj) !== Object.prototype) {
             child.toggled = true;
           }
           break;

tools/devtools/src/utils.js

@@ -1,6 +1,6 @@
 export const IS_FIREFOX = navigator.userAgent.indexOf("Firefox") !== -1;
 
-const browserInstance = IS_FIREFOX ? browser : chrome;
+export const browserInstance = IS_FIREFOX ? browser : chrome;
 
 export async function getOwlStatus() {
   const response = await browserInstance.runtime.sendMessage({ type: "getOwlStatus" });

tools/owl-vision/.eslintrc.json

@@ -0,0 +1,24 @@
+{
+    "root": true,
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 6,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "@typescript-eslint/naming-convention": "warn",
+        "@typescript-eslint/semi": "warn",
+        "curly": "warn",
+        "eqeqeq": "warn",
+        "no-throw-literal": "warn",
+        "semi": "off"
+    },
+    "ignorePatterns": [
+        "out",
+        "dist",
+        "**/*.d.ts"
+    ]
+}

tools/owl-vision/.vscode/launch.json

@@ -0,0 +1,30 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Run Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ],
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "${defaultBuildTask}"
+        },
+        {
+            "name": "Extension Tests",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}",
+                "--extensionTestsPath=${workspaceFolder}/out/test/suite/index"
+            ],
+            "outFiles": [
+                "${workspaceFolder}/out/test/**/*.js"
+            ],
+            "preLaunchTask": "${defaultBuildTask}"
+        }
+    ]
+}

tools/owl-vision/.vscode/tasks.json

@@ -0,0 +1,18 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "type": "npm",
+            "script": "watch",
+            "problemMatcher": "$tsc-watch",
+            "isBackground": true,
+            "presentation": {
+                "reveal": "never"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}

tools/owl-vision/.vscodeignore

@@ -0,0 +1,12 @@
+.vscode/**
+.vscode-test/**
+src/**
+.gitignore
+.yarnrc
+vsc-extension-quickstart.md
+**/tsconfig.json
+**/.eslintrc.json
+**/*.map
+**/*.ts
+**/*.vsix
+scripts/**

tools/owl-vision/CHANGELOG.md

@@ -0,0 +1,32 @@
+# Change Log
+
+All notable changes to the "owl-vision" extension will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+
+## [0.0.2] - 2023-2-11
+
+### Added
+
+- Switch Below command
+- Basic syntax highlight for xpaths
+- Syntax builder scripts to make syntaxes easier to read and edit
+- Syntax highlight in single quote attributes
+- Syntax highlight for slot props
+
+### Fixed
+
+- Added missing space in component's snippet indentation
+- Using `Switch Besides` or `Switch Below` does not open a new panel if one was already open
+
+## [0.0.1] - 2023-03-10
+
+- Initial release
+
+### Added
+
+- Owl templates syntax highlight in xml files
+- `Find Template` Command - Finds the template file of the currently selected element.
+- `Find Component` Command - Finds the selected component definition.
+- `Switch` Command - Finds the corresponding template or component file depending on the current file.
+- `Switch Besides` Command - Finds the corresponding template or component file depending on the current file and opens it besides.

tools/owl-vision/LICENSE

@@ -0,0 +1,856 @@
+OWL-VISION is published under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3
+(LGPLv3), as included below. Since the LGPL is a set of additional
+permissions on top of the GPL, the text of the GPL is included at the
+bottom as well.
+
+Some external libraries and contributions bundled with OWL-VISION may be published
+under other GPL-compatible licenses. For these, please refer to the relevant
+source files and/or license files, in the source code tree.
+
+**************************************************************************
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
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+General Public License, and the "GNU GPL" refers to version 3 of the GNU
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+other than an Application or a Combined Work as defined below.
+
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+**************************************************************************
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+
+**************************************************************************

tools/owl-vision/README.md

@@ -0,0 +1,30 @@
+# 🦉 Owl Vision 🕶️
+
+Owl Vision is an extension for the amazing [Owl framework](https://github.com/odoo/owl) that complements your templates with beautiful colors and allows you to more easily navigate between components and templates.
+
+![Syntax highlight preview](https://raw.githubusercontent.com/odoo/owl/master/tools/owl-vision/assets/syntax_highlight.png)
+
+This extension also adds:
+- A basic component snippent.
+- "Go to definition" providers for component tags in xml or in inline templates.
+
+## Commands
+
+* `Owl Vision: Find Template`:
+    - If the cursor is on a template name, finds the corresponding template.
+    - If the cursor is on a component, finds the template of the selected component.
+* `Owl Vision: Find Component`: Finds the selected component definition.
+* `Owl Vision: Switch`: Finds the corresponding template or component depending on the current file.
+* `Owl Vision: Switch (Besides)`: Finds the corresponding template or component depending on the current file and opens it besides.
+* `Owl Vision: Switch (Below)`: Finds the corresponding template or component depending on the current file and opens it below.
+
+## Settings
+
+* `owl-vision.include`: Glob filter for files to include while searching.
+* `owl-vision.exclude`: Glob filter for files to exclude while searching.
+
+## Troubleshooting
+
+### *The extension cannot find my templates/components*
+
+The include and exclude settings have default values that may not work with your project structure, try adapting them.

tools/owl-vision/package.json

@@ -0,0 +1,139 @@
+{
+    "name": "owl-vision",
+    "displayName": "Owl Vision",
+    "description": "Owl framework extension that highlights templates and ease navigation between components and templates.",
+    "publisher": "Odoo",
+    "license": "LGPL-3.0-only",
+    "version": "0.0.2",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/odoo/owl/tree/master/tools/owl-vision"
+    },
+    "icon": "assets/icon128.png",
+    "engines": {
+        "vscode": "^1.73.0"
+    },
+    "categories": [
+        "Other"
+    ],
+    "activationEvents": [
+        "onLanguage:xml",
+        "onLanguage:js"
+    ],
+    "main": "./out/main.js",
+    "contributes": {
+        "commands": [
+            {
+                "command": "owl-vision.switch",
+                "title": "Switch",
+                "category": "Owl Vision"
+            },
+            {
+                "command": "owl-vision.switch-besides",
+                "title": "Switch (Besides)",
+                "category": "Owl Vision"
+            },
+            {
+                "command": "owl-vision.switch-below",
+                "title": "Switch (Below)",
+                "category": "Owl Vision"
+            },
+            {
+                "command": "owl-vision.find-component",
+                "title": "Find Component",
+                "category": "Owl Vision"
+            },
+            {
+                "command": "owl-vision.find-template",
+                "title": "Find Template",
+                "category": "Owl Vision"
+            }
+        ],
+        "configuration": {
+            "title": "Owl Vision",
+            "properties": {
+                "owl-vision.include": {
+                    "order": 0,
+                    "type": "string",
+                    "default": "**/*.js,**/*.ts,**/*.mjs,**/static/**/*.xml",
+                    "description": "Files to include in search"
+                },
+                "owl-vision.exclude": {
+                    "order": 1,
+                    "type": "string",
+                    "default": "**/node_modules/**,**/lib/**,**/tests/**",
+                    "description": "Files to exclude in search"
+                }
+            }
+        },
+        "snippets": [
+            {
+                "language": "javascript",
+                "path": "./snippets/component.json"
+            }
+        ],
+        "grammars": [
+            {
+                "scopeName": "owl.template",
+                "path": "./syntaxes/owl.template.json",
+                "embeddedLanguages": {
+                    "meta.embedded.block.javascript": "source.js"
+                },
+                "injectTo": [
+                    "text.xml"
+                ]
+            },
+            {
+                "scopeName": "owl.template.inline",
+                "path": "./syntaxes/owl.template.inline.json",
+                "embeddedLanguages": {
+                    "meta.embedded.block.xml": "xml"
+                },
+                "injectTo": [
+                    "source.js",
+                    "source.jsx",
+                    "source.ts",
+                    "source.tsx",
+                    "text.html"
+                ]
+            },
+            {
+                "scopeName": "owl.markup.inline",
+                "path": "./syntaxes/owl.markup.inline.json",
+                "embeddedLanguages": {
+                    "meta.embedded.block.html": "html"
+                },
+                "injectTo": [
+                    "source.js",
+                    "source.jsx",
+                    "source.ts",
+                    "source.tsx",
+                    "text.html"
+                ]
+            }
+        ]
+    },
+    "scripts": {
+        "compile": "tsc -p ./",
+        "package": "vsce package",
+        "watch": "tsc -watch -p ./",
+        "lint": "eslint src --ext ts",
+        "pretest": "npm run compile && npm run lint",
+        "vscode:prepublish": "npm run esbuild-base -- --minify",
+        "esbuild-base": "esbuild ./src/extension.ts --bundle --outfile=out/main.js --external:vscode --format=cjs --platform=node",
+        "esbuild": "npm run esbuild-base -- --sourcemap",
+        "esbuild-watch": "npm run esbuild-base -- --sourcemap --watch",
+        "build-syntax": "node ./scripts/owl_template_syntax.mjs"
+    },
+    "devDependencies": {
+        "@types/node": "20.2.5",
+        "@types/vscode": "^1.73.0",
+        "@typescript-eslint/eslint-plugin": "^5.59.8",
+        "@typescript-eslint/parser": "^5.59.8",
+        "@vscode/test-electron": "^2.3.2",
+        "@vscode/vsce": "^2.20.1",
+        "esbuild": "^0.19.5",
+        "eslint": "^8.41.0",
+        "typescript": "^5.1.3"
+    }
+}

tools/owl-vision/scripts/owl_template_syntax.mjs

@@ -0,0 +1,48 @@
+import { createTagPattern, exportPatterns } from "./syntax_builder_utils.mjs";
+import {
+    htmlAttributes,
+    owlAttributesDynamic,
+    owlAttributesFormattedString,
+    owlAttributesStatic,
+    propsAttributes
+} from "./syntax_parts/owl_attributes.mjs";
+import { xpathAttributes } from "./syntax_parts/xpath.mjs";
+
+const componentsTags = createTagPattern("component-tags", {
+    match: "[A-Z][a-zA-Z0-9_]*",
+    name: "entity.name.type.class owl.component",
+    patterns: [
+        owlAttributesDynamic,
+        owlAttributesDynamic,
+        propsAttributes,
+    ],
+});
+
+const htmlTags = createTagPattern("html-tags", {
+    match: "[a-z][a-zA-Z0-9_:.]+|[abiqsuw]",
+    name: "entity.name.tag.localname.xml owl.xml.tag",
+    patterns: [
+        owlAttributesFormattedString,
+        xpathAttributes,
+        owlAttributesDynamic,
+        owlAttributesStatic,
+        htmlAttributes,
+    ],
+});
+
+const tTag = createTagPattern("t-tag", {
+    match: "t(?![a-zA-Z])",
+    name: "entity.name.tag.localname.xml owl.tag",
+    patterns: [
+        propsAttributes,
+        owlAttributesFormattedString,
+        owlAttributesDynamic,
+        owlAttributesStatic,
+    ],
+});
+
+exportPatterns(
+    "L:text.xml -comment",
+    "owl.template",
+    [componentsTags, htmlTags, tTag]
+);

tools/owl-vision/scripts/syntax_builder_utils.mjs

@@ -0,0 +1,117 @@
+import { writeFileSync } from "fs";
+import { dirname, resolve } from "path";
+import { fileURLToPath } from 'url';
+
+const REPOSITORY = {};
+
+export function exportPatterns(injectionSelector, scopeName, patterns) {
+    const data = {
+        injectionSelector: injectionSelector,
+        scopeName: scopeName,
+        patterns: [],
+        repository: {}
+    }
+
+    for (const pattern of patterns) {
+        data.patterns.push({ include: `#${pattern.id}` });
+    }
+
+    for (const id in REPOSITORY) {
+        const pattern = { ...REPOSITORY[id] };
+
+        delete pattern.id;
+
+        data.repository[id] = pattern;
+    }
+
+    const currentDir = dirname(fileURLToPath(import.meta.url));
+    const filePath = resolve(currentDir, "../syntaxes", `${scopeName}.json`);
+    writeFileSync(filePath, JSON.stringify(data, null, 4));
+    console.info(`Sucessfuly build ./syntaxes/${scopeName}.json`);
+}
+
+export function createPattern(id, { name, match, begin, end, contentName, beginCaptures, endCaptures, patterns }) {
+    const pattern = { ...arguments[1] };
+    if (id) {
+        pattern.id = id;
+        REPOSITORY[id] = pattern;
+    }
+
+    function mapCaptures(name, captures) {
+        if (!captures) {
+            return;
+        }
+
+        pattern[name] = {};
+        for (const key in captures) {
+            pattern[name][key] = { name: captures[key] }
+        }
+    }
+
+    mapCaptures("beginCaptures", beginCaptures);
+    mapCaptures("endCaptures", endCaptures);
+
+    pattern.patterns = [];
+
+    if (patterns) {
+        for (const childPattern of patterns) {
+            if (typeof childPattern === "string") {
+                pattern.patterns.push({ include: childPattern });
+            } else if (childPattern.id) {
+                pattern.patterns.push({ include: `#${childPattern.id}` });
+            } else {
+                pattern.patterns.push(childPattern);
+            }
+        }
+    }
+
+    return pattern;
+}
+
+export function createTagPattern(id, { match, name, patterns }) {
+    return createPattern(id, {
+        begin: `(</?)(${match})`,
+        beginCaptures: {
+            "1": "punctuation.definition.tag.xml owl.xml.punctuation",
+            "2": name,
+        },
+        end: "\\s*([/?]?>)",
+        endCaptures: {
+            "1": "punctuation.definition.tag.xml punctuation",
+        },
+        patterns,
+    });
+}
+
+export function createAttributePatterns(id, { match, attributeName, contentName = "", patterns = [] }) {
+    return createPattern(id, {
+        patterns: [
+            createPattern(undefined, {
+                contentName: contentName !== null ? (contentName + " string.quoted.double.xml").trim() : undefined,
+                begin: `(\\s*)(${match})(=)(")`,
+                beginCaptures: {
+                    "2": "entity.other.attribute-name.localname.xml " + attributeName,
+                    "4": "punctuation.definition.string.begin.xml",
+                },
+                end: `(")`,
+                endCaptures: {
+                    "0": "punctuation.definition.string.end.xml",
+                },
+                patterns,
+            }),
+            createPattern(undefined, {
+                contentName: contentName !== null ? (contentName + " string.quoted.single.xml").trim() : undefined,
+                begin: `(\\s*)(${match})(=)(')`,
+                beginCaptures: {
+                    "2": "entity.other.attribute-name.localname.xml " + attributeName,
+                    "4": "punctuation.definition.string.begin.xml",
+                },
+                end: `(')`,
+                endCaptures: {
+                    "0": "punctuation.definition.string.end.xml",
+                },
+                patterns,
+            })
+        ]
+    });
+}

tools/owl-vision/scripts/syntax_parts/owl_attributes.mjs

@@ -0,0 +1,103 @@
+import { createAttributePatterns, createPattern } from "../syntax_builder_utils.mjs";
+
+export const inilineJs = [createPattern("inline-js", {
+    patterns: [
+        {
+            match: "\\s(=>)\\s",
+            captures: {
+                "1": {
+                    name: "string.quoted.double.xml owl.arrow",
+                }
+            }
+        },
+        {
+            match: "\\b(props)\\b",
+            captures: {
+                "1": {
+                    name: "variable.language.js owl.expression.props",
+                }
+            }
+        },
+        {
+            match: "\\s(and|or)\\s",
+            captures: {
+                "1": {
+                    name: "keyword.operator.logical.js owl.logical",
+                }
+            }
+        },
+        {
+            include: "source.js"
+        }
+    ]
+})];
+
+const formattedString = createPattern("formatted-string", {
+    contentName: "meta.embedded.block.javascript",
+    begin: `({{)`,
+    beginCaptures: {
+        "1": "owl.double-curlybrackets",
+    },
+    end: `(}})`,
+    endCaptures: {
+        "1": "owl.double-curlybrackets",
+    },
+    patterns: inilineJs
+});
+
+// -------------------------------- Attributes --------------------------------
+
+export const htmlAttributes = createAttributePatterns("html-attributes", {
+    match: "[a-z]{2}[a-z_:.-]+",
+    attributeName: "owl.xml.attribute",
+});
+
+export const propsAttributes = createAttributePatterns("props-attributes", {
+    match: "[a-zA-Z]{2}[a-zA-Z_:.]*",
+    contentName: "meta.embedded.block.javascript",
+    attributeName: "owl.attribute owl.attribute.props",
+    patterns: inilineJs,
+});
+
+export const owlAttributesDynamic = createAttributePatterns("owl-attributes-dynamic", {
+    match: [
+        "t-if",
+        "t-else",
+        "t-elif",
+        "t-foreach",
+        "t-as",
+        "t-key",
+        "t-esc",
+        "t-out",
+        "t-props",
+        "t-component",
+        "t-set",
+        "t-value",
+        "t-portal",
+        "t-slot-scope",
+        "t-att-[a-z_:.-]+",
+        "t-on-[a-z_:.-]+"
+    ].join("|"),
+    contentName: "meta.embedded.block.javascript",
+    attributeName: "owl.attribute owl.attribute.dynamic",
+    patterns: inilineJs,
+});
+
+export const owlAttributesStatic = createAttributePatterns("owl-attributes-static", {
+    match: [
+        "t-name",
+        "t-ref",
+        "t-set-slot",
+        "t-model",
+        "t-inherit",
+        "t-inherit-mode",
+        "t-translation"
+    ].join("|"),
+    attributeName: "owl.attribute owl.attribute.static",
+});
+
+export const owlAttributesFormattedString = createAttributePatterns("owl-attributes-formatted-string", {
+    match: ["t-call", "t-slot", "t-attf-[a-z_:.-]+"].join("|"),
+    attributeName: "owl.attribute owl.attribute.formatted",
+    patterns: [formattedString],
+});

tools/owl-vision/scripts/syntax_parts/xpath.mjs

@@ -0,0 +1,105 @@
+import { createAttributePatterns, createPattern } from "../syntax_builder_utils.mjs";
+
+const xpathPattern = [createPattern("xpath", {
+    patterns: [
+        {
+            begin: "\\[",
+            beginCaptures: {
+                "0": {
+                    name: "punctuation.definition",
+                }
+            },
+            end: "\\]",
+            endCaptures: {
+                "0": {
+                    name: "punctuation.definition",
+                }
+            },
+            patterns: [
+                {
+                    begin: "'",
+                    beginCaptures: {
+                        "0": {
+                            name: "punctuation.definition",
+                        }
+                    },
+                    end: "'",
+                    endCaptures: {
+                        "0": {
+                            name: "punctuation.definition",
+                        }
+                    },
+                    contentName: "string.quoted.single",
+                },
+                {
+                    begin: "\\\"",
+                    beginCaptures: {
+                        "0": {
+                            name: "punctuation.definition",
+                        }
+                    },
+                    end: "\\\"",
+                    endCaptures: {
+                        "0": {
+                            name: "punctuation.definition",
+                        }
+                    },
+                    contentName: "string.quoted.double",
+                },
+                {
+                    match: "(@)([a-zA-Z0-9_:\\-]+)\\b",
+                    captures: {
+                        "1": {
+                            name: "punctuation.definition",
+                        },
+                        "2": {
+                            name: "entity.other.attribute-name",
+                        }
+                    }
+                },
+                {
+                    match: "(\\(|\\))",
+                    name: "meta.brace.round",
+                },
+                {
+                    match: "[0-9]+(\\.[0-9]+)?",
+                    name: "constant.numeric.decimal",
+                },
+                {
+                    match: "\\b(hasclass)\\b",
+                    captures: {
+                        "1": {
+                            name: "entity.name.function",
+                        },
+                    }
+                },
+            ]
+        },
+        {
+            match: "/{1,2}",
+            name: "text",
+        },
+        {
+            match: "(?<!@)([A-Z][a-zA-Z]+)\\b",
+            captures: {
+                "1": {
+                    name: "entity.name.type.class",
+                }
+            }
+        },
+        {
+            match: "(?<!@)([a-z][a-zA-Z0-9_:.]+|[abiqsuw])\\b",
+            captures: {
+                "1": {
+                    name: "entity.name.tag",
+                }
+            }
+        },
+    ]
+})];
+
+export const xpathAttributes = createAttributePatterns("xpath-attributes", {
+    match: "expr",
+    attributeName: "owl.xml.attribute owl.xml.attribute.xpath",
+    patterns: xpathPattern,
+});

tools/owl-vision/snippets/component.json

@@ -0,0 +1,18 @@
+{
+    "Basic owl component": {
+        "prefix": "owlcomponent",
+        "body": [
+            "export class ${1:component-name} extends Component {",
+            "    static template = \"${2:template-name}\";",
+            "    static components = {};",
+            "    static props = {};",
+            "",
+            "    setup() {",
+            "",
+            "    }",
+            "}",
+            ""
+        ],
+        "description": "The starting base for an owl component"
+    }
+}

tools/owl-vision/src/definiton_providers.ts

@@ -0,0 +1,29 @@
+import * as vscode from 'vscode';
+import { getSelectedText, showStatusMessage, hideStatusMessage } from './utils';
+import { Search } from './search';
+
+export class ComponentDefinitionProvider implements vscode.DefinitionProvider {
+
+    search: Search;
+
+    constructor(search: Search) {
+        this.search = search;
+    }
+
+    /**
+     * Interface implementation to provide definition when ctrl+click on Component
+     * tag in template.
+     */
+    async provideDefinition(document: vscode.TextDocument, position: vscode.Position) {
+        const currentWord = getSelectedText(/<\/?[A-Z][a-zA-Z]+/, document, position);
+        if (!currentWord) {
+            return;
+        }
+        const componentName = currentWord.replace(/[\/<]/g, "").trim();
+
+        showStatusMessage(`Searching for component "${componentName}"`);
+        const result = await this.search.findComponent(componentName);
+        hideStatusMessage();
+        return result;
+    }
+}

tools/owl-vision/src/extension.ts

@@ -0,0 +1,20 @@
+import * as vscode from 'vscode';
+import { Search } from './search';
+import { ComponentDefinitionProvider } from './definiton_providers';
+import { OpenDirection } from './utils';
+
+export async function activate(context: vscode.ExtensionContext) {
+    const search = new Search();
+
+    context.subscriptions.push(vscode.commands.registerCommand('owl-vision.switch', () => search.switch()));
+    context.subscriptions.push(vscode.commands.registerCommand('owl-vision.switch-besides', () => search.switch(OpenDirection.Besides)));
+    context.subscriptions.push(vscode.commands.registerCommand('owl-vision.switch-below', () => search.switch(OpenDirection.Below)));
+    context.subscriptions.push(vscode.commands.registerCommand('owl-vision.find-component', () => search.findComponentCommand()));
+    context.subscriptions.push(vscode.commands.registerCommand('owl-vision.find-template', () => search.findTemplateCommand()));
+
+    const componentDefProvider = new ComponentDefinitionProvider(search);
+    context.subscriptions.push(vscode.languages.registerDefinitionProvider({ language: 'xml' }, componentDefProvider));
+    context.subscriptions.push(vscode.languages.registerDefinitionProvider({ language: 'javascript' }, componentDefProvider));
+}
+
+export function deactivate() { }

tools/owl-vision/src/search.ts

@@ -0,0 +1,196 @@
+import { GlobPattern, Location, Range, Uri, window, workspace } from 'vscode';
+import { OpenDirection, getClosestMatch, getSelectedText, hideStatusMessage, showResult, showStatusMessage } from './utils';
+import path = require('path');
+
+export class Search {
+
+    finderCache = new Map<string, Uri>();
+
+    public async switch(openDirection: OpenDirection = OpenDirection.Active) {
+        if (!this.currentDocument) {
+            return;
+        }
+
+        let result = undefined;
+        const text = this.currentDocument.getText();
+        const isJs = this.currentDocument.fileName.endsWith(".js");
+        const templateName = this.getTemplateName(text, isJs);
+
+        if (templateName && isJs) {
+            result = await this.findTemplate(templateName);
+        } else if (templateName) {
+            result = await this.findComponentFromTemplateName(templateName);
+        }
+
+        if (result !== undefined) {
+            showResult(result, openDirection);
+        } else if (isJs) {
+            window.showWarningMessage(`Could not find a template for current component`);
+        } else {
+            window.showWarningMessage(`Could not find a component for current template`);
+        }
+    }
+
+    public async findComponentCommand() {
+        const currentWord = getSelectedText();
+        if (!currentWord) {
+            return;
+        }
+
+        showStatusMessage(`Searching for component "${currentWord}"`);
+        const result = await this.findComponent(currentWord);
+        if (result) {
+            showResult(result);
+        } else {
+            window.showWarningMessage(`Could not find a component for "${currentWord}"`);
+        }
+        hideStatusMessage();
+    }
+
+    public async findTemplateCommand() {
+        const currentWord = getSelectedText(/[\w.-]+/);
+        if (!currentWord) {
+            return;
+        }
+
+        showStatusMessage(`Searching for template "${currentWord}"`);
+        const result = await this.findTemplate(currentWord);
+        if (result) {
+            showResult(result);
+        } else {
+            window.showWarningMessage(`Could not find a template for "${currentWord}"`);
+        }
+        hideStatusMessage();
+    }
+
+    public async findComponent(componentName: string): Promise<Location | undefined> {
+        if (componentName.toLowerCase() === componentName || componentName.includes(".") || componentName.includes("-")) {
+            return;
+        }
+
+        const query = this.buildQuery(`class\\s+`, componentName, `\\s+extends`);
+        return await this.find(componentName, query, "js");
+    }
+
+    public async findTemplate(templateName: string): Promise<Location | undefined> {
+        const isComponentName = templateName.match(/^[A-Z][a-zA-Z0-9_]*$/);
+
+        if (isComponentName) {
+            const componentResult = await this.findComponent(templateName);
+            if (!componentResult) {
+                return;
+            } else {
+                const text = (await workspace.openTextDocument(componentResult.uri)).getText();
+                const foundTemplateName = this.getTemplateName(text, true);
+                if (foundTemplateName) {
+                    templateName = foundTemplateName;
+                } else {
+                    return;
+                }
+            }
+        }
+
+        const query = this.buildQuery(`t-name="`, templateName, `"`);
+        return await this.find(templateName, query, "xml");
+    }
+
+    private findComponentFromTemplateName(templateName: string): Promise<Location | undefined> {
+        const query = this.buildQuery(`template\\s*=\\s*["']`, templateName, `["']`);
+        return this.find(templateName, query, "js");
+    }
+
+    private getTemplateName(str: string, isJsFile: boolean): string | undefined {
+        if (isJsFile) {
+            return getClosestMatch(str, /template\s*=\s*["']([a-zA-Z0-9_\-\.]+)["']/g, +1);
+        } else {
+            return getClosestMatch(str, /t-name="([a-zA-Z0-9_\-\.]+)"/g);
+        }
+    }
+
+    public async find(
+        name: string,
+        searchQuery: string,
+        fileType: "js" | "xml",
+    ): Promise<Location | undefined> {
+        const key = `${name}-${fileType}`;
+        const cachedUri = this.finderCache.get(key);
+        if (cachedUri) {
+            const result = await this.findInFile(cachedUri, searchQuery);
+            if (result) {
+                return result;
+            } else {
+                this.finderCache.delete(key);
+            }
+        }
+
+        const include = `{${workspace.getConfiguration().get(`owl-vision.include`)}, *.${fileType}}`;
+        const exclude = `{${workspace.getConfiguration().get(`owl-vision.exclude`)}}`;
+        const files = await this.getFiles(name, include, exclude);
+
+        for (const file of files) {
+            const result = await this.findInFile(file, searchQuery);
+            if (result) {
+                this.finderCache.set(key, result.uri);
+                return result;
+            }
+        }
+    }
+
+    private async getFiles(
+        searchQuery: string,
+        include: GlobPattern,
+        exclude: GlobPattern,
+    ): Promise<Array<Uri>> {
+        const files = await workspace.findFiles(include, exclude);
+        const parts = searchQuery.split(".").flatMap(s => s.split(/(?=[A-Z])/)).map(s => s.toLowerCase());
+        const currentDir = this.currentDocument ? path.dirname(this.currentDocument.uri.path) : "";
+
+        const results = files.map(file => {
+            const filepath = file.path.toLowerCase();
+            let score = 0;
+            if (path.dirname(filepath) === currentDir) {
+                score += 99;
+            }
+            for (const part of parts) {
+                if (filepath.includes(part)) {
+                    score++;
+                }
+            }
+            return { score, file };
+        })
+            .sort((a, b) => a.score > b.score ? -1 : 1)
+            .slice(0, 25);
+
+        return results.map(r => r.file);
+    }
+
+    private async findInFile(
+        file: Uri,
+        searchQuery: string,
+    ): Promise<Location | undefined> {
+        const document = await workspace.openTextDocument(file);
+        const text = document.getText();
+        const match = text.match(new RegExp(searchQuery));
+
+        if (match) {
+            const index = match.index || 0;
+            return new Location(file, new Range(
+                document.positionAt(index),
+                document.positionAt(index)
+            ));
+        }
+    }
+
+    private get currentDocument() {
+        return window.activeTextEditor?.document;
+    }
+
+    private buildQuery(
+        prefix: string,
+        content: string,
+        postfix: string,
+    ): string {
+        return `(?<=${prefix})(${content})(?=${postfix})`;
+    }
+}
+

tools/owl-vision/src/utils.ts

@@ -0,0 +1,104 @@
+import * as vscode from 'vscode';
+
+let statusMessage: vscode.StatusBarItem | undefined = undefined;
+
+export function showStatusMessage(text: string) {
+    if (!statusMessage) {
+        statusMessage = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
+    }
+    statusMessage.text = `$(sync~spin) ${text}`;
+    statusMessage.show();
+}
+
+export function hideStatusMessage() {
+    statusMessage?.hide();
+}
+
+export function getActiveCursorIndex(lineDelta = 0): number {
+    const editor = vscode.window.activeTextEditor;
+    if (!editor) {
+        return 0;
+    }
+    const position = editor.selection.active.translate(lineDelta);
+    return editor.document.offsetAt(position);
+}
+
+export function getSelectedText(regex?: RegExp, document?: vscode.TextDocument, position?: vscode.Position): string | undefined {
+    const editor = vscode.window.activeTextEditor;
+    if (!document) {
+        if (!editor) {
+            return;
+        }
+        document = editor.document;
+    }
+
+    position = position || vscode.window.activeTextEditor?.selection.active;
+
+    if (!position) {
+        return;
+    }
+
+    const wordRange = document.getWordRangeAtPosition(position, regex);
+    if (!wordRange) {
+        return;
+    }
+    return document.getText(wordRange);
+}
+
+export function getClosestMatch(str: string, regex: RegExp, lineDelta = 0): string | undefined {
+    const index = getActiveCursorIndex(lineDelta);
+    const matches = [...str.matchAll(regex)];
+
+    if (matches.length === 0) {
+        return;
+    }
+
+    let closestMatch = matches[0];
+    let closestDistance = Math.abs(index - (closestMatch.index || 0));
+
+    for (const match of matches) {
+        const matchIndex = match.index || 0;
+        const distance = Math.abs(index - matchIndex);
+        if (matchIndex < index && distance < closestDistance) {
+            closestMatch = match;
+            closestDistance = distance;
+        }
+    }
+
+    return closestMatch[1];
+}
+
+export enum OpenDirection {
+    Active,
+    Besides,
+    Below,
+}
+
+export async function showResult(result: vscode.Location, openDirection: OpenDirection = OpenDirection.Active) {
+    let editor = undefined;
+
+    if (openDirection == OpenDirection.Active) {
+        editor = await vscode.window.showTextDocument(result.uri);
+    } else {
+        let targetColumn = vscode.ViewColumn.Beside;
+        const existingDocument = vscode.workspace.textDocuments.find(t => t.uri.path === result.uri.path);
+        if (existingDocument) {
+            const currentColumn = vscode.window.activeTextEditor?.viewColumn;
+            if (currentColumn == vscode.ViewColumn.One) {
+                targetColumn = vscode.ViewColumn.Two;
+            } else if (currentColumn == vscode.ViewColumn.Two) {
+                targetColumn = vscode.ViewColumn.One;
+            }
+            editor = await vscode.window.showTextDocument(existingDocument, { viewColumn: targetColumn });
+        } else {
+            editor = await vscode.window.showTextDocument(result.uri, { viewColumn: targetColumn });
+        }
+    }
+
+    if (openDirection === OpenDirection.Below) {
+        await vscode.commands.executeCommand('workbench.action.editorLayoutTwoRows');
+    }
+
+    editor.revealRange(result.range);
+    editor.selection = new vscode.Selection(result.range.start, result.range.end);
+}

tools/owl-vision/syntaxes/owl.markup.inline.json

@@ -0,0 +1,34 @@
+{
+    "injectionSelector": "L:source.js -comment",
+    "scopeName": "owl.markup.inline",
+    "patterns": [
+        {
+            "include": "#markup"
+        }
+    ],
+    "repository": {
+        "markup": {
+            "begin": "\\s+(markup)(`)",
+            "contentName": "meta.embedded.block.html",
+            "beginCaptures": {
+                "1": {
+                    "name": "entity.name.function.tagged-template.js owl-markup"
+                },
+                "2": {
+                    "name": "punctuation.definition.string.template.begin.js string.template.js"
+                }
+            },
+            "end": "(`)",
+            "endCaptures": {
+                "1": {
+                    "name": "punctuation.definition.string.template.end.js string.template.js"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "text.html.basic"
+                }
+            ]
+        }
+    }
+}

tools/owl-vision/syntaxes/owl.template.inline.json

@@ -0,0 +1,40 @@
+{
+    "injectionSelector": "L:source.js -comment -(string -meta.embedded)",
+    "scopeName": "owl.template.inline",
+    "patterns": [
+        {
+            "include": "#xml-tag"
+        }
+    ],
+    "repository": {
+        "xml-tag": {
+            "begin": "\\s+(xml)(`)",
+            "contentName": "meta.embedded.block.xml",
+            "beginCaptures": {
+                "1": {
+                    "name": "entity.name.function.tagged-template.js"
+                },
+                "2": {
+                    "name": "punctuation.definition.string.template.begin.js"
+                }
+            },
+            "end": "(`)",
+            "endCaptures": {
+                "0": {
+                    "name": "string.js"
+                },
+                "1": {
+                    "name": "punctuation.definition.string.template.end.js"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "owl.template"
+                },
+                {
+                    "include": "text.xml"
+                }
+            ]
+        }
+    }
+}

tools/owl-vision/syntaxes/owl.template.json

@@ -0,0 +1,542 @@
+{
+    "injectionSelector": "L:text.xml -comment",
+    "scopeName": "owl.template",
+    "patterns": [
+        {
+            "include": "#component-tags"
+        },
+        {
+            "include": "#html-tags"
+        },
+        {
+            "include": "#t-tag"
+        }
+    ],
+    "repository": {
+        "inline-js": {
+            "patterns": [
+                {
+                    "match": "\\s(=>)\\s",
+                    "captures": {
+                        "1": {
+                            "name": "string.quoted.double.xml owl.arrow"
+                        }
+                    }
+                },
+                {
+                    "match": "\\b(props)\\b",
+                    "captures": {
+                        "1": {
+                            "name": "variable.language.js owl.expression.props"
+                        }
+                    }
+                },
+                {
+                    "match": "\\s(and|or)\\s",
+                    "captures": {
+                        "1": {
+                            "name": "keyword.operator.logical.js owl.logical"
+                        }
+                    }
+                },
+                {
+                    "include": "source.js"
+                }
+            ]
+        },
+        "formatted-string": {
+            "contentName": "meta.embedded.block.javascript",
+            "begin": "({{)",
+            "beginCaptures": {
+                "1": {
+                    "name": "owl.double-curlybrackets"
+                }
+            },
+            "end": "(}})",
+            "endCaptures": {
+                "1": {
+                    "name": "owl.double-curlybrackets"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "#inline-js"
+                }
+            ]
+        },
+        "html-attributes": {
+            "patterns": [
+                {
+                    "contentName": "string.quoted.double.xml",
+                    "begin": "(\\s*)([a-z]{2}[a-z_:.-]+)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.xml.attribute"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": []
+                },
+                {
+                    "contentName": "string.quoted.single.xml",
+                    "begin": "(\\s*)([a-z]{2}[a-z_:.-]+)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.xml.attribute"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": []
+                }
+            ]
+        },
+        "props-attributes": {
+            "patterns": [
+                {
+                    "contentName": "meta.embedded.block.javascript string.quoted.double.xml",
+                    "begin": "(\\s*)([a-zA-Z]{2}[a-zA-Z_:.]*)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.props"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#inline-js"
+                        }
+                    ]
+                },
+                {
+                    "contentName": "meta.embedded.block.javascript string.quoted.single.xml",
+                    "begin": "(\\s*)([a-zA-Z]{2}[a-zA-Z_:.]*)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.props"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#inline-js"
+                        }
+                    ]
+                }
+            ]
+        },
+        "owl-attributes-dynamic": {
+            "patterns": [
+                {
+                    "contentName": "meta.embedded.block.javascript string.quoted.double.xml",
+                    "begin": "(\\s*)(t-if|t-else|t-elif|t-foreach|t-as|t-key|t-esc|t-out|t-props|t-component|t-set|t-value|t-portal|t-slot-scope|t-att-[a-z_:.-]+|t-on-[a-z_:.-]+)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.dynamic"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#inline-js"
+                        }
+                    ]
+                },
+                {
+                    "contentName": "meta.embedded.block.javascript string.quoted.single.xml",
+                    "begin": "(\\s*)(t-if|t-else|t-elif|t-foreach|t-as|t-key|t-esc|t-out|t-props|t-component|t-set|t-value|t-portal|t-slot-scope|t-att-[a-z_:.-]+|t-on-[a-z_:.-]+)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.dynamic"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#inline-js"
+                        }
+                    ]
+                }
+            ]
+        },
+        "owl-attributes-static": {
+            "patterns": [
+                {
+                    "contentName": "string.quoted.double.xml",
+                    "begin": "(\\s*)(t-name|t-ref|t-set-slot|t-model|t-inherit|t-inherit-mode|t-translation)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.static"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": []
+                },
+                {
+                    "contentName": "string.quoted.single.xml",
+                    "begin": "(\\s*)(t-name|t-ref|t-set-slot|t-model|t-inherit|t-inherit-mode|t-translation)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.static"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": []
+                }
+            ]
+        },
+        "owl-attributes-formatted-string": {
+            "patterns": [
+                {
+                    "contentName": "string.quoted.double.xml",
+                    "begin": "(\\s*)(t-call|t-slot|t-attf-[a-z_:.-]+)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.formatted"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#formatted-string"
+                        }
+                    ]
+                },
+                {
+                    "contentName": "string.quoted.single.xml",
+                    "begin": "(\\s*)(t-call|t-slot|t-attf-[a-z_:.-]+)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.attribute owl.attribute.formatted"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#formatted-string"
+                        }
+                    ]
+                }
+            ]
+        },
+        "xpath": {
+            "patterns": [
+                {
+                    "begin": "\\[",
+                    "beginCaptures": {
+                        "0": {
+                            "name": "punctuation.definition"
+                        }
+                    },
+                    "end": "\\]",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "begin": "'",
+                            "beginCaptures": {
+                                "0": {
+                                    "name": "punctuation.definition"
+                                }
+                            },
+                            "end": "'",
+                            "endCaptures": {
+                                "0": {
+                                    "name": "punctuation.definition"
+                                }
+                            },
+                            "contentName": "string.quoted.single"
+                        },
+                        {
+                            "begin": "\\\"",
+                            "beginCaptures": {
+                                "0": {
+                                    "name": "punctuation.definition"
+                                }
+                            },
+                            "end": "\\\"",
+                            "endCaptures": {
+                                "0": {
+                                    "name": "punctuation.definition"
+                                }
+                            },
+                            "contentName": "string.quoted.double"
+                        },
+                        {
+                            "match": "(@)([a-zA-Z0-9_:\\-]+)\\b",
+                            "captures": {
+                                "1": {
+                                    "name": "punctuation.definition"
+                                },
+                                "2": {
+                                    "name": "entity.other.attribute-name"
+                                }
+                            }
+                        },
+                        {
+                            "match": "(\\(|\\))",
+                            "name": "meta.brace.round"
+                        },
+                        {
+                            "match": "[0-9]+(\\.[0-9]+)?",
+                            "name": "constant.numeric.decimal"
+                        },
+                        {
+                            "match": "\\b(hasclass)\\b",
+                            "captures": {
+                                "1": {
+                                    "name": "entity.name.function"
+                                }
+                            }
+                        }
+                    ]
+                },
+                {
+                    "match": "/{1,2}",
+                    "name": "text"
+                },
+                {
+                    "match": "(?<!@)([A-Z][a-zA-Z]+)\\b",
+                    "captures": {
+                        "1": {
+                            "name": "entity.name.type.class"
+                        }
+                    }
+                },
+                {
+                    "match": "(?<!@)([a-z][a-zA-Z0-9_:.]+|[abiqsuw])\\b",
+                    "captures": {
+                        "1": {
+                            "name": "entity.name.tag"
+                        }
+                    }
+                }
+            ]
+        },
+        "xpath-attributes": {
+            "patterns": [
+                {
+                    "contentName": "string.quoted.double.xml",
+                    "begin": "(\\s*)(expr)(=)(\")",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.xml.attribute owl.xml.attribute.xpath"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(\")",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#xpath"
+                        }
+                    ]
+                },
+                {
+                    "contentName": "string.quoted.single.xml",
+                    "begin": "(\\s*)(expr)(=)(')",
+                    "beginCaptures": {
+                        "2": {
+                            "name": "entity.other.attribute-name.localname.xml owl.xml.attribute owl.xml.attribute.xpath"
+                        },
+                        "4": {
+                            "name": "punctuation.definition.string.begin.xml"
+                        }
+                    },
+                    "end": "(')",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.xml"
+                        }
+                    },
+                    "patterns": [
+                        {
+                            "include": "#xpath"
+                        }
+                    ]
+                }
+            ]
+        },
+        "component-tags": {
+            "begin": "(</?)([A-Z][a-zA-Z0-9_]*)",
+            "beginCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml owl.xml.punctuation"
+                },
+                "2": {
+                    "name": "entity.name.type.class owl.component"
+                }
+            },
+            "end": "\\s*([/?]?>)",
+            "endCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml punctuation"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "#owl-attributes-dynamic"
+                },
+                {
+                    "include": "#owl-attributes-dynamic"
+                },
+                {
+                    "include": "#props-attributes"
+                }
+            ]
+        },
+        "html-tags": {
+            "begin": "(</?)([a-z][a-zA-Z0-9_:.]+|[abiqsuw])",
+            "beginCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml owl.xml.punctuation"
+                },
+                "2": {
+                    "name": "entity.name.tag.localname.xml owl.xml.tag"
+                }
+            },
+            "end": "\\s*([/?]?>)",
+            "endCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml punctuation"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "#owl-attributes-formatted-string"
+                },
+                {
+                    "include": "#xpath-attributes"
+                },
+                {
+                    "include": "#owl-attributes-dynamic"
+                },
+                {
+                    "include": "#owl-attributes-static"
+                },
+                {
+                    "include": "#html-attributes"
+                }
+            ]
+        },
+        "t-tag": {
+            "begin": "(</?)(t(?![a-zA-Z]))",
+            "beginCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml owl.xml.punctuation"
+                },
+                "2": {
+                    "name": "entity.name.tag.localname.xml owl.tag"
+                }
+            },
+            "end": "\\s*([/?]?>)",
+            "endCaptures": {
+                "1": {
+                    "name": "punctuation.definition.tag.xml punctuation"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "#props-attributes"
+                },
+                {
+                    "include": "#owl-attributes-formatted-string"
+                },
+                {
+                    "include": "#owl-attributes-dynamic"
+                },
+                {
+                    "include": "#owl-attributes-static"
+                }
+            ]
+        }
+    }
+}

tools/owl-vision/tsconfig.json

@@ -0,0 +1,13 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "ES2020",
+        "outDir": "out",
+        "lib": [
+            "ES2020"
+        ],
+        "sourceMap": true,
+        "rootDir": "src",
+        "strict": true
+    }
+}