[REL] v1.3.2

# v1.3.2 Fixes - components: correctly propagate errors to parent
[FIX] component: propagate errors to parent
2025-10-06 19:59:41 +07:00 · 2021-06-18 10:41:51 +02:00 · 2021-06-18 10:34:09 +02:00 · 2021-06-10 10:36:33 +02:00 · 2021-06-10 10:23:48 +02:00 · 2021-06-10 10:00:22 +02:00
40 changed files with 865 additions and 372 deletions
@@ -120,7 +120,7 @@ npm install @odoo/owl

 If you want to use a simple `<script>` tag, the last release can be downloaded here:

- [owl-1.2.2](https://github.com/odoo/owl/releases/tag/v1.2.2)
+- [owl-1.3.2](https://github.com/odoo/owl/releases/tag/v1.3.2)

 ## License

@@ -663,7 +663,7 @@ function makeStore() {

 function setup() {
  owl.config.mode = "dev";
-  const env = {store = makeStore()};
+  const env = { store: makeStore() };
  mount(App, { target: document.body, env });
 }
 ```
@@ -939,7 +939,7 @@ For reference, here is the final code:

  function setup() {
    owl.config.mode = "dev";
-    const env = {store = makeStore()};
+    const env = { store: makeStore() };
    mount(App, { target: document.body, env });
  }

@@ -11,6 +11,7 @@
  - [Methods](#methods)
  - [Lifecycle](#lifecycle)
    - [`constructor(parent, props)`](#constructorparent-props)
+    - [`setup()`](#setup)
    - [`willStart()`](#willstart)
    - [`mounted()`](#mounted)
    - [`willUpdateProps(nextProps)`](#willupdatepropsnextprops)
@@ -324,7 +325,7 @@ a owl component:

 | Method                                           | Description                                                 |
 | ------------------------------------------------ | ----------------------------------------------------------- |
-| **[constructor](#constructorparent-props)**      | constructor                                                 |
+| **[setup](#setup)**                              | setup                                                       |
 | **[willStart](#willstart)**                      | async, before first rendering                               |
 | **[mounted](#mounted)**                          | just after component is rendered and added to the DOM       |
 | **[willUpdateProps](#willupdatepropsnextprops)** | async, before props update                                  |
@@ -369,6 +370,23 @@ class ClickCounter extends owl.Component {
 }
 ```

+Hook functions can be called in the constructor.
+
+#### `setup()`
+
+_setup_ is run just after the component is constructed. It is a lifecycle method,
+very similar to the _constructor_, except that it does not receive any argument.
+
+It is a valid method to call hook functions. Note that one of the main reason to
+have the `setup` hook in the component lifecycle is to make it possible to
+monkey patch it. It is a common need in the Odoo ecosystem.
+
+```javascript
+setup() {
+  useSetupAutofocus();
+}
+```
+
 #### `willStart()`

 willStart is an asynchronous hook that can be implemented to
@@ -771,7 +789,7 @@ template rendered with `props`. In Owl, this can be done by
 simply defining a template, that will access the `props` object:

 ```js
-const Welcome = xml`<h1>Hello, {props.name}</h1>`;
+const Welcome = xml`<h1>Hello, <t t-esc="props.name"/></h1>`;

 class MyComponent extends Component {
  static template = xml`
@@ -131,7 +131,7 @@ class SomeComponent extends Component {
 ### One rule

 There is only one rule: every hook for a component has to be called in the
-constructor (or in class fields):
+constructor, in the _setup_ method, or in class fields:

 ```js
 // ok
@@ -147,6 +147,13 @@ class SomeComponent extends Component {
  }
 }

+// also ok
+class SomeComponent extends Component {
+  setup() {
+    this.state = useState({ value: 0 });
+  }
+}
+
 // not ok: this is executed after the constructor is called
 class SomeComponent extends Component {
  async willStart() {
@@ -15,7 +15,7 @@ use cases, there is no need to directly instantiate an observer.
 For example, this code will display `update` in the console:

 ```javascript
-const observer = new owl.Observer();
+const observer = new owl.core.Observer();
 observer.notifyCB = () => console.log("update");
 const obj = observer.observe({ a: { b: 1 } });

@@ -39,14 +39,14 @@ is incremented every time the value is observed. Sometimes, it can be useful
 to obtain that number:

 ```js
-const observer = new owl.Observer();
+const observer = new owl.core.Observer();
 const obj = observer.observe({ a: { b: 1 } });

-observer.deepRevNumber(obj.a); // 1
+observer.revNumber(obj.a); // 1
 obj.a.b = 2;

-observer.deepRevNumber(obj.a); // 2
+observer.revNumber(obj.a); // 2
 ```

-The `deepRevNumber` can also return 0, which indicates that the value is not
+The `revNumber` can also return 0, which indicates that the value is not
 observed.
@@ -13,6 +13,7 @@
  - [Setting Variables](#setting-variables)
  - [Conditionals](#conditionals)
  - [Dynamic Attributes](#dynamic-attributes)
+  - [Dynamic Tag Names](#dynamic-tag-names)
  - [Loops](#loops)
  - [Rendering Sub Templates](#rendering-sub-templates)
  - [Dynamic Sub Templates](#dynamic-sub-templates)
@@ -76,6 +77,7 @@ needs. Here is a list of all Owl specific directives:
 | `t-transition`           | [Defining an animation](animations.md#css-transitions)                          |
 | `t-slot`                 | [Rendering a slot](slots.md)                                                    |
 | `t-model`                | [Form input bindings](component.md#form-input-bindings)                         |
+| `t-tag`                  | [Rendering nodes with dynamic tag name](#dynamic-tag-names)                     |

 ## Reference

@@ -324,6 +326,22 @@ values) or a pair `[key, value]`. For example:
 <div t-att="['a', 'b']"/> <!-- <div a="b"></div> -->
 ```

+### Dynamic tag names
+
+When writing generic components or templates, the specific concrete tag for an
+HTML element is not known yet. In those situations, the `t-tag` directive is
+useful. It simply evaluates dynamically an expression to use as a tag name. The
+template:
+
+```xml
+<t t-tag="tag">
+    <span>content</span>
+</t>
+```
+
+will be rendered as `<div><span>content</span></div>` if the `tag` context key
+is set to `div`.
+
 ### Loops

 QWeb has an iteration directive `t-foreach` which take an expression returning the
@@ -44,7 +44,7 @@ Slots are defined by the caller, with the `t-set-slot` directive:
 ```xml
 <div t-name="SomeComponent">
  <div>some component</div>
-  <Dialog title="Some Dialog">
+  <Dialog title="'Some Dialog'">
    <t t-set-slot="content">
      <div>hey</div>
    </t>
@@ -1,6 +1,6 @@
 {
  "name": "@odoo/owl",
-  "version": "1.2.2",
+  "version": "1.3.2",
  "description": "Odoo Web Library (OWL)",
  "main": "dist/owl.cjs.js",
  "browser": "dist/owl.iife.js",
@@ -22,6 +22,7 @@
    "pretools:watch": "npm run build",
    "tools:watch": "npm-run-all  --parallel tools:serve \"build:* -- --watch\"",
    "prettier": "prettier {src/*.ts,src/**/*.ts,tests/*.ts,tests/**/*.ts,doc/*.md,doc/**/*.md} --write",
+    "check-formatting": "prettier {src/*.ts,src/**/*.ts,tests/*.ts,tests/**/*.ts,doc/*.md,doc/**/*.md} --check",
    "publish": "npm run build && npm publish",
    "release": "node tools/release.js"
  },
@@ -40,11 +41,12 @@
    "@types/node": "^14.11.8",
    "chalk": "^3.0.0",
    "cpx": "^1.5.0",
+    "current-git-branch": "^1.1.0",
    "git-rev-sync": "^1.12.0",
    "github-api": "^3.3.0",
    "jest": "^23.6.0",
    "jest-environment-jsdom": "^24.7.1",
-    "live-server": "^1.2.2",
+    "live-server": "^1.2.1",
    "npm-run-all": "^4.1.5",
    "prettier": "^2.0.4",
    "rollup": "^1.6.0",
@@ -1,6 +1,6 @@
 # 🦉 OWL Roadmap 🦉

- Current version: 1.2.2
+- Current version: 1.3.2
 - Status: stable

 This roadmap is only an attempt at predicting Owl's future.  Everything may
@@ -44,6 +44,15 @@ interface MountOptions {
  position?: MountPosition;
 }

+export const enum STATUS {
+  CREATED,
+  WILLSTARTED, // willstart has been called
+  RENDERED, // first render is completed (so, vnode is now defined)
+  MOUNTED, // is ready, and in DOM. It has a valid el
+  UNMOUNTED, // has a valid el, but is not in DOM
+  DESTROYED,
+}
+
 /**
 * This is mostly an internal detail of implementation. The Meta interface is
 * useful to typecheck and describe the internal keys used by Owl to manage the
@@ -56,8 +65,7 @@ interface Internal<T extends Env> {
  depth: number;
  vnode: VNode | null;
  pvnode: VNode | null;
-  isMounted: boolean;
-  isDestroyed: boolean;
+  status: STATUS;

  // parent and children keys are obviously useful to setup the parent-children
  // relationship.
@@ -164,16 +172,18 @@ export class Component<Props extends {} = any, T extends Env = Env> {
        this.env.browser = browser;
      }
      this.env.qweb.on("update", this, () => {
-        if (this.__owl__.isMounted) {
-          this.render(true);
-        }
-        if (this.__owl__.isDestroyed) {
-          // this is unlikely to happen, but if a root widget is destroyed,
-          // we want to remove our subscription.  The usual way to do that
-          // would be to perform some check in the destroy method, but since
-          // it is very performance sensitive, and since this is a rare event,
-          // we simply do it lazily
-          this.env.qweb.off("update", this);
+        switch (this.__owl__.status) {
+          case STATUS.MOUNTED:
+            this.render(true);
+            break;
+          case STATUS.DESTROYED:
+            // this is unlikely to happen, but if a root widget is destroyed,
+            // we want to remove our subscription.  The usual way to do that
+            // would be to perform some check in the destroy method, but since
+            // it is very performance sensitive, and since this is a rare event,
+            // we simply do it lazily
+            this.env.qweb.off("update", this);
+            break;
        }
      });
      depth = 0;
@@ -186,8 +196,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
      depth: depth,
      vnode: null,
      pvnode: null,
-      isMounted: false,
-      isDestroyed: false,
+      status: STATUS.CREATED,
      parent: parent || null,
      children: {},
      cmap: {},
@@ -209,8 +218,20 @@ export class Component<Props extends {} = any, T extends Env = Env> {
    if (constr.style) {
      this.__applyStyles(constr);
    }
+    this.setup();
  }

+  /**
+   * setup is run just after the component is constructed. This is the standard
+   * location where the component can setup its hooks. It has some advantages
+   * over the constructor:
+   *  - it can be patched (useful in odoo ecosystem)
+   *  - it does not need to propagate the arguments to the super call
+   *
+   * Note: this method should not be called manually.
+   */
+  setup() {}
+
  /**
   * willStart is an asynchronous hook that can be implemented to perform some
   * action before the initial rendering of a component.
@@ -305,49 +326,49 @@ export class Component<Props extends {} = any, T extends Env = Env> {
   * Note that a component can be mounted an unmounted several times
   */
  async mount(target: HTMLElement | DocumentFragment, options: MountOptions = {}): Promise<void> {
-    const position = options.position || "last-child";
-    const __owl__ = this.__owl__;
-    if (__owl__.isMounted) {
-      if (position !== "self" && this.el!.parentNode !== target) {
-        // in this situation, we are trying to mount a component on a different
-        // target. In this case, we need to unmount first, otherwise it will
-        // not work.
-        this.unmount();
-      } else {
-        return Promise.resolve();
-      }
-    }
-    if (__owl__.isDestroyed) {
-      throw new Error("Cannot mount a destroyed component");
-    }
-    if (__owl__.currentFiber) {
-      const currentFiber = __owl__.currentFiber;
-      if (!currentFiber.target && !currentFiber.position) {
-        // this means we have a pending rendering, but it was a render operation,
-        // not a mount operation. We can simply update the fiber with the target
-        // and the position
-        currentFiber.target = target;
-        currentFiber.position = position;
-        return scheduler.addFiber(currentFiber);
-      } else if (currentFiber.target === target && currentFiber.position === position) {
-        return scheduler.addFiber(currentFiber);
-      } else {
-        scheduler.rejectFiber(currentFiber, "Mounting operation cancelled");
-      }
-    }
    if (!(target instanceof HTMLElement || target instanceof DocumentFragment)) {
      let message = `Component '${this.constructor.name}' cannot be mounted: the target is not a valid DOM node.`;
      message += `\nMaybe the DOM is not ready yet? (in that case, you can use owl.utils.whenReady)`;
      throw new Error(message);
    }
-    const fiber = new Fiber(null, this, true, target, position);
-    fiber.shouldPatch = false;
-    if (!__owl__.vnode) {
-      this.__prepareAndRender(fiber, () => {});
-    } else {
-      this.__render(fiber);
+    const position = options.position || "last-child";
+    const __owl__ = this.__owl__;
+    const currentFiber = __owl__.currentFiber;
+
+    switch (__owl__.status) {
+      case STATUS.CREATED: {
+        const fiber = new Fiber(null, this, true, target, position);
+        fiber.shouldPatch = false;
+        this.__prepareAndRender(fiber, () => {});
+        return scheduler.addFiber(fiber);
+      }
+      case STATUS.WILLSTARTED:
+      case STATUS.RENDERED:
+        currentFiber.target = target;
+        currentFiber.position = position;
+        return scheduler.addFiber(currentFiber);
+
+      case STATUS.UNMOUNTED: {
+        const fiber = new Fiber(null, this, true, target, position);
+        fiber.shouldPatch = false;
+        this.__render(fiber);
+        return scheduler.addFiber(fiber);
+      }
+
+      case STATUS.MOUNTED: {
+        if (position !== "self" && this.el!.parentNode !== target) {
+          const fiber = new Fiber(null, this, true, target, position);
+          fiber.shouldPatch = false;
+          this.__render(fiber);
+          return scheduler.addFiber(fiber);
+        } else {
+          return Promise.resolve();
+        }
+      }
+
+      case STATUS.DESTROYED:
+        throw new Error("Cannot mount a destroyed component");
    }
-    return scheduler.addFiber(fiber);
  }

  /**
@@ -355,7 +376,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
   * to call willUnmount calls and remove the component from the DOM.
   */
  unmount() {
-    if (this.__owl__.isMounted) {
+    if (this.__owl__.status === STATUS.MOUNTED) {
      this.__callWillUnmount();
      this.el!.remove();
    }
@@ -373,17 +394,20 @@ export class Component<Props extends {} = any, T extends Env = Env> {
  async render(force: boolean = false): Promise<void> {
    const __owl__ = this.__owl__;
    const currentFiber = __owl__.currentFiber;
+    if (!__owl__.vnode && !currentFiber) {
+      return;
+    }
    if (currentFiber && !currentFiber.isRendered && !currentFiber.isCompleted) {
      return scheduler.addFiber(currentFiber.root);
    }
    // if we aren't mounted at this point, it implies that there is a
    // currentFiber that is already rendered (isRendered is true), so we are
    // about to be mounted
-    const isMounted = __owl__.isMounted;
+    const status = __owl__.status;
    const fiber = new Fiber(null, this, force, null, null);
    Promise.resolve().then(() => {
-      if (__owl__.isMounted || !isMounted) {
-        if (fiber.isCompleted) {
+      if (__owl__.status === STATUS.MOUNTED || status !== STATUS.MOUNTED) {
+        if (fiber.isCompleted || fiber.isRendered) {
          return;
        }
        this.__render(fiber);
@@ -409,7 +433,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
   */
  destroy() {
    const __owl__ = this.__owl__;
-    if (!__owl__.isDestroyed) {
+    if (__owl__.status !== STATUS.DESTROYED) {
      const el = this.el;
      this.__destroy(__owl__.parent);
      if (el) {
@@ -454,13 +478,12 @@ export class Component<Props extends {} = any, T extends Env = Env> {
   */
  __destroy(parent: Component | null) {
    const __owl__ = this.__owl__;
-    const isMounted = __owl__.isMounted;
-    if (isMounted) {
+    if (__owl__.status === STATUS.MOUNTED) {
      if (__owl__.willUnmountCB) {
        __owl__.willUnmountCB();
      }
      this.willUnmount();
-      __owl__.isMounted = false;
+      __owl__.status = STATUS.UNMOUNTED;
    }
    const children = __owl__.children;
    for (let key in children) {
@@ -471,7 +494,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
      delete parent.__owl__.children[id];
      __owl__.parent = null;
    }
-    __owl__.isDestroyed = true;
+    __owl__.status = STATUS.DESTROYED;
    delete __owl__.vnode;
    if (__owl__.currentFiber) {
      __owl__.currentFiber.isCompleted = true;
@@ -481,7 +504,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
  __callMounted() {
    const __owl__ = this.__owl__;

-    __owl__.isMounted = true;
+    __owl__.status = STATUS.MOUNTED;
    __owl__.currentFiber = null;
    this.mounted();
    if (__owl__.mountedCB) {
@@ -495,7 +518,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
      __owl__.willUnmountCB();
    }
    this.willUnmount();
-    __owl__.isMounted = false;
+    __owl__.status = STATUS.UNMOUNTED;
    if (__owl__.currentFiber) {
      __owl__.currentFiber.isCompleted = true;
      __owl__.currentFiber.root.counter = 0;
@@ -503,7 +526,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
    const children = __owl__.children;
    for (let id in children) {
      const comp = children[id];
-      if (comp.__owl__.isMounted) {
+      if (comp.__owl__.status === STATUS.MOUNTED) {
        comp.__callWillUnmount();
      }
    }
@@ -624,18 +647,25 @@ export class Component<Props extends {} = any, T extends Env = Env> {
    }
    return p._template;
  }
+
  async __prepareAndRender(fiber: Fiber, cb: CallableFunction) {
    try {
-      await Promise.all([this.willStart(), this.__owl__.willStartCB && this.__owl__.willStartCB()]);
+      const proms = Promise.all([
+        this.willStart(),
+        this.__owl__.willStartCB && this.__owl__.willStartCB(),
+      ]);
+      this.__owl__.status = STATUS.WILLSTARTED;
+      await proms;
+      if (this.__owl__.status === <any>STATUS.DESTROYED) {
+        return Promise.resolve();
+      }
    } catch (e) {
      fiber.handleError(e);
      return Promise.resolve();
    }
-    if (this.__owl__.isDestroyed) {
-      return Promise.resolve();
-    }
    if (!fiber.isCompleted) {
      this.__render(fiber);
+      this.__owl__.status = STATUS.RENDERED;
      cb();
    }
  }
@@ -658,7 +688,7 @@ export class Component<Props extends {} = any, T extends Env = Env> {
      for (let childKey in __owl__.children) {
        const child = __owl__.children[childKey];
        const childOwl = child.__owl__;
-        if (!childOwl.isMounted && childOwl.parentLastFiberId < fiber.id) {
+        if (childOwl.status !== STATUS.MOUNTED && childOwl.parentLastFiberId < fiber.id) {
          // we only do here a "soft" destroy, meaning that we leave the child
          // dom node alone, without removing it.  Most of the time, it does not
          // matter, because the child component is already unmounted.  However,
@@ -705,17 +735,6 @@ export class Component<Props extends {} = any, T extends Env = Env> {
    }
  }

-  /**
-   * Only called by qweb t-component directive (when t-keepalive is set)
-   */
-  __remount() {
-    const __owl__ = this.__owl__;
-    if (!__owl__.isMounted) {
-      __owl__.isMounted = true;
-      this.mounted();
-    }
-  }
-
  /**
   * Apply default props (only top level).
   *
@@ -1,6 +1,7 @@
 import { QWeb } from "../qweb/index";
 import { INTERP_REGEXP } from "../qweb/compilation_context";
 import { makeHandlerCode, MODS_CODE } from "../qweb/extensions";
+import { STATUS } from "./component";

 //------------------------------------------------------------------------------
 // t-component
@@ -361,7 +362,7 @@ QWeb.addDirective({
    // need to update component
    let styleCode = "";
    if (tattStyle) {
-      styleCode = `.then(()=>{if (w${componentID}.__owl__.isDestroyed) {return};w${componentID}.el.style=${tattStyle};});`;
+      styleCode = `.then(()=>{if (w${componentID}.__owl__.status === ${STATUS.DESTROYED}) {return};w${componentID}.el.style=${tattStyle};});`;
    }
    ctx.addLine(
      `w${componentID}.__updateProps(props${componentID}, extra.fiber, ${scope})${styleCode};`
@@ -377,14 +378,11 @@ QWeb.addDirective({
    ctx.addElse();

    // new component
-    let dynamicFallback = "";
-    if (!value.match(INTERP_REGEXP)) {
-      dynamicFallback = `|| ${ctx.formatExpression(value)}`;
-    }
+    const contextualValue = value.match(INTERP_REGEXP) ? "false" : ctx.formatExpression(value);
    const interpValue = ctx.interpolate(value);
    ctx.addLine(`let componentKey${componentID} = ${interpValue};`);
    ctx.addLine(
-      `let W${componentID} = context.constructor.components[componentKey${componentID}] || QWeb.components[componentKey${componentID}]${dynamicFallback};`
+      `let W${componentID} = ${contextualValue} || context.constructor.components[componentKey${componentID}] || QWeb.components[componentKey${componentID}];`
    );

    // maybe only do this in dev mode...
@@ -1,5 +1,5 @@
 import { h, VNode } from "../vdom/index";
-import { Component, MountPosition } from "./component";
+import { Component, MountPosition, STATUS } from "./component";
 import { scheduler } from "./scheduler";

 /**
@@ -107,6 +107,8 @@ export class Fiber {
   */
  _reuseFiber(oldFiber: Fiber) {
    oldFiber.cancel(); // cancel children fibers
+    oldFiber.target = this.target || oldFiber.target;
+    oldFiber.position = this.position || oldFiber.position;
    oldFiber.isCompleted = false; // keep the root fiber alive
    oldFiber.isRendered = false; // the fiber has to be re-rendered
    if (oldFiber.child) {
@@ -188,8 +190,8 @@ export class Fiber {
  complete() {
    let component = this.component;
    this.isCompleted = true;
-    const { isMounted, isDestroyed } = component.__owl__;
-    if (isDestroyed) {
+    const status = component.__owl__.status;
+    if (status === STATUS.DESTROYED) {
      return;
    }

@@ -203,7 +205,7 @@ export class Fiber {
    const patchLen = patchQueue.length;

    // call willPatch hook on each fiber of patchQueue
-    if (isMounted) {
+    if (status === STATUS.MOUNTED) {
      for (let i = 0; i < patchLen; i++) {
        const fiber = patchQueue[i];
        if (fiber.shouldPatch) {
@@ -253,8 +255,9 @@ export class Fiber {
          component.__owl__.pvnode!.elm = component.__owl__.vnode!.elm;
        }
      }
-      if (fiber === component.__owl__.currentFiber) {
-        component.__owl__.currentFiber = null;
+      const compOwl = component.__owl__;
+      if (fiber === compOwl.currentFiber) {
+        compOwl.currentFiber = null;
      }
    }

@@ -274,7 +277,7 @@ export class Fiber {
    }

    // call patched/mounted hook on each fiber of (reversed) patchQueue
-    if (isMounted || inDOM) {
+    if (status === STATUS.MOUNTED || inDOM) {
      for (let i = patchLen - 1; i >= 0; i--) {
        const fiber = patchQueue[i];
        component = fiber.component;
@@ -287,6 +290,12 @@ export class Fiber {
          component.__callMounted();
        }
      }
+    } else {
+      for (let i = patchLen - 1; i >= 0; i--) {
+        const fiber = patchQueue[i];
+        component = fiber.component;
+        component.__owl__.status = STATUS.UNMOUNTED;
+      }
    }
  }

@@ -317,16 +326,30 @@ export class Fiber {

    const qweb = component.env.qweb;
    let root = component;
-    let canCatch = false;
-    while (component && !(canCatch = !!component.catchError)) {
-      root = component;
-      component = component.__owl__.parent!;
-    }
-    qweb.trigger("error", error);

-    if (canCatch) {
-      component.catchError!(error);
-    } else {
+    function handle(error) {
+      let canCatch = false;
+      qweb.trigger("error", error);
+      while (component && !(canCatch = !!component.catchError)) {
+        root = component;
+        component = component.__owl__.parent!;
+      }
+      if (canCatch) {
+        try {
+          component.catchError!(error);
+        } catch (e) {
+          root = component;
+          component = component.__owl__.parent!;
+          return handle(e);
+        }
+        return true;
+      }
+      return false;
+    }
+
+    let isHandled = handle(error);
+
+    if (!isHandled) {
      // the 3 next lines aim to mark the root fiber as being in error, and
      // to force it to end, without waiting for its children
      this.root.counter = 0;
@@ -281,7 +281,9 @@ QWeb.addDirective({

    // Step 4: add the appropriate function call to current component
    // ------------------------------------------------
-    const parentComponent = `utils.getComponent(context)`;
+    const parentComponent = ctx.rootContext.shouldDefineParent
+      ? `parent`
+      : `utils.getComponent(context)`;
    const key = ctx.generateTemplateKey();
    const parentNode = ctx.parentNode ? `c${ctx.parentNode}` : "result";
    const extra = `Object.assign({}, extra, {parentNode: ${parentNode}, parent: ${parentComponent}, key: ${key}})`;
@@ -29,14 +29,14 @@ const RESERVED_WORDS = "true,false,NaN,null,undefined,debugger,console,window,in
  ","
 );

-const WORD_REPLACEMENT = {
+const WORD_REPLACEMENT = Object.assign(Object.create(null), {
  and: "&&",
  or: "||",
  gt: ">",
  gte: ">=",
  lt: "<",
  lte: "<=",
-};
+});

 export interface QWebVar {
  id: string; // foo
@@ -69,7 +69,7 @@ interface Token {
  varName?: string;
 }

-const STATIC_TOKEN_MAP: { [key: string]: TKind } = {
+const STATIC_TOKEN_MAP: { [key: string]: TKind } = Object.assign(Object.create(null), {
  "{": "LEFT_BRACE",
  "}": "RIGHT_BRACE",
  "[": "LEFT_BRACKET",
@@ -78,7 +78,7 @@ const STATIC_TOKEN_MAP: { [key: string]: TKind } = {
  ",": "COMMA",
  "(": "LEFT_PAREN",
  ")": "RIGHT_PAREN",
-};
+});

 // note that the space after typeof is relevant. It makes sure that the formatted
 // expression has a space after typeof
@@ -1,3 +1,4 @@
+import { STATUS } from "../component/component";
 import { VNode } from "../vdom/index";
 import { INTERP_REGEXP } from "./compilation_context";
 import { QWeb } from "./qweb";
@@ -76,7 +77,7 @@ export function makeHandlerCode(
    code = ctx.captureExpression(value);
  }
  const modCode = mods.map((mod) => modcodes[mod]).join("");
-  let handler = `function (e) {if (!context.__owl__.isMounted){return}${modCode}${code}}`;
+  let handler = `function (e) {if (context.__owl__.status === ${STATUS.DESTROYED}){return}${modCode}${code}}`;
  if (putInCache) {
    const key = ctx.generateTemplateKey(event);
    ctx.addLine(`extra.handlers[${key}] = extra.handlers[${key}] || ${handler};`);
@@ -203,6 +203,7 @@ export class QWeb extends EventBus {
    att: 1,
    attf: 1,
    translation: 1,
+    tag: 1,
  };
  static DIRECTIVES: Directive[] = [];

@@ -435,6 +436,7 @@ export class QWeb extends EventBus {
      ctx.variables = Object.create(null);
      ctx.parentNode = ctx.generateID();
      ctx.allowMultipleRoots = true;
+      ctx.shouldDefineParent = true;
      ctx.hasParentWidget = true;
      ctx.shouldDefineResult = false;
      ctx.addLine(`let c${ctx.parentNode} = extra.parentNode;`);
@@ -614,7 +616,7 @@ export class QWeb extends EventBus {
      }
    }

-    if (node.nodeName !== "t") {
+    if (node.nodeName !== "t" || node.hasAttribute("t-tag")) {
      let nodeID = this._compileGenericNode(node, ctx, withHandlers);
      ctx = ctx.withParent(nodeID);
      let nodeHooks = {};
@@ -841,7 +843,14 @@ export class QWeb extends EventBus {
      ctx.addLine(`}`);
      ctx.closeIf();
    }
-    ctx.addLine(`let vn${nodeID} = h('${node.nodeName}', p${nodeID}, c${nodeID});`);
+    let nodeName = `'${node.nodeName}'`;
+    if ((<Element>node).hasAttribute("t-tag")) {
+      const tagExpr = (<Element>node).getAttribute("t-tag");
+      (<Element>node).removeAttribute("t-tag");
+      nodeName = `tag${ctx.generateID()}`;
+      ctx.addLine(`let ${nodeName} = ${ctx.formatExpression(tagExpr)};`);
+    }
+    ctx.addLine(`let vn${nodeID} = h(${nodeName}, p${nodeID}, c${nodeID});`);
    if (ctx.parentNode) {
      ctx.addLine(`c${ctx.parentNode}.push(vn${nodeID});`);
    } else if (ctx.loopNumber || ctx.hasKey0) {
@@ -11,6 +11,7 @@ type NavigationGuard = (info: {
 export interface Route {
  name: string;
  path: string;
+  extractionRegExp: RegExp;
  component?: any;
  redirect?: Destination;
  params: string[];
@@ -54,6 +55,7 @@ export interface EnvWithRouter extends Env {
 }

 const paramRegexp = /\{\{(.*?)\}\}/;
+const globalParamRegexp = new RegExp(paramRegexp.source, "g");

 export class Router {
  currentRoute: Route | null = null;
@@ -87,6 +89,7 @@ export class Router {
        this.validateDestination(partialRoute.redirect);
      }
      partialRoute.params = partialRoute.path ? findParams(partialRoute.path) : [];
+      partialRoute.extractionRegExp = makeExtractionRegExp(partialRoute.path);
      this.routes[partialRoute.name] = partialRoute as Route;
      this.routeIds.push(partialRoute.name);
    }
@@ -170,19 +173,14 @@ export class Router {
  }

  private routeToPath(route: Route, params: RouteParams): string {
-    const path = route.path;
-    const parts = path.split("/");
-    const l = parts.length;
-    for (let i = 0; i < l; i++) {
-      const part = parts[i];
-      const match = part.match(paramRegexp);
-      if (match) {
-        const key = match[1].split(".")[0];
-        parts[i] = <string>params[key];
-      }
-    }
    const prefix = this.mode === "hash" ? "#" : "";
-    return prefix + parts.join("/");
+    return (
+      prefix +
+      route.path.replace(globalParamRegexp, (match, param) => {
+        const [key] = param.split(".");
+        return <string>params[key];
+      })
+    );
  }

  private currentPath(): string {
@@ -244,40 +242,47 @@ export class Router {
    if (path.startsWith("#")) {
      path = path.slice(1);
    }
-    const descrParts = route.path.split("/");
-    const targetParts = path.split("/");
-    const l = descrParts.length;
-    if (l !== targetParts.length) {
+    const paramsMatch = path.match(route.extractionRegExp);
+    if (!paramsMatch) {
      return false;
    }
    const result = {};
-    for (let i = 0; i < l; i++) {
-      const descr = descrParts[i];
-      let target: string | number = targetParts[i];
-      const match = descr.match(paramRegexp);
-      if (match) {
-        const [key, suffix] = match[1].split(".");
-        if (suffix === "number") {
-          target = parseInt(target, 10);
-        }
-        result[key] = target;
-      } else if (descr !== target) {
-        return false;
+    route.params.forEach((param, index) => {
+      const [key, suffix] = param.split(".");
+      const paramValue = paramsMatch[index + 1];
+      if (suffix === "number") {
+        return (result[key] = parseInt(paramValue, 10));
      }
-    }
+      return (result[key] = paramValue);
+    });
    return result;
  }
 }

 function findParams(str: string): string[] {
-  const globalParamRegexp = /\{\{(.*?)\}\}/g;
  const result: string[] = [];
  let m;
  do {
    m = globalParamRegexp.exec(str);
    if (m) {
-      result.push(m[1].split(".")[0]);
+      result.push(m[1]);
    }
  } while (m);
  return result;
 }
+
+function escapeRegExp(str: string) {
+  return str.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+}
+
+function makeExtractionRegExp(path: string) {
+  // replace param strings with capture groups so that we can build a regex to match over the path
+  const extractionString = path
+    .split(paramRegexp)
+    .map((part, index) => {
+      return index % 2 ? "(.*)" : escapeRegExp(part);
+    })
+    .join("");
+  // Example: /home/{{param1}}/{{param2}} => ^\/home\/(.*)\/(.*)$
+  return new RegExp(`^${extractionString}$`);
+}
@@ -24,7 +24,7 @@ exports[`animations t-transition combined with component 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        const __patch2 = w2.__patch;
@@ -69,7 +69,7 @@ exports[`animations t-transition combined with t-component and t-if 1`] = `
            c1.push(pvnode);
        } else {
            let componentKey2 = \`Child\`;
-            let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+            let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
            if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
            w2 = new W2(parent, props2);
            const __patch2 = w2.__patch;
@@ -115,7 +115,7 @@ exports[`animations t-transition combined with t-component, remove and re-add be
            c1.push(pvnode);
        } else {
            let componentKey2 = \`Child\`;
-            let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+            let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
            if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
            w2 = new W2(parent, props2);
            const __patch2 = w2.__patch;
@@ -20,12 +20,12 @@ exports[`class and style attributes with t-component dynamic t-att-style is prop
        w2 = false;
    }
    if (w2) {
-        w2.__updateProps(props2, extra.fiber, undefined).then(()=>{if (w2.__owl__.isDestroyed) {return};w2.el.style=_4;});;
+        w2.__updateProps(props2, extra.fiber, undefined).then(()=>{if (w2.__owl__.status === 5) {return};w2.el.style=_4;});;
        let pvnode = w2.__owl__.pvnode;
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -67,7 +67,7 @@ exports[`class and style attributes with t-component t-att-class is properly add
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -125,7 +125,7 @@ exports[`class and style attributes with t-component t-att-class is properly add
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -24,7 +24,7 @@ exports[`basic widget properties can handle empty props 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -97,7 +97,7 @@ exports[`basic widget properties reconciliation alg works for t-foreach in t-for
                c1.push(pvnode);
            } else {
                let componentKey10 = \`Child\`;
-                let W10 = context.constructor.components[componentKey10] || QWeb.components[componentKey10]|| scope['Child'];
+                let W10 = scope['Child'] || context.constructor.components[componentKey10] || QWeb.components[componentKey10];
                if (!W10) {throw new Error('Cannot find the definition of component \\"' + componentKey10 + '\\"')}
                w10 = new W10(parent, props10);
                parent.__owl__.cmap[k11] = w10.__owl__.id;
@@ -145,7 +145,7 @@ exports[`basic widget properties same t-keys in two different places 1`] = `
            c2.push(pvnode);
        } else {
            let componentKey3 = \`Child\`;
-            let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['Child'];
+            let W3 = scope['Child'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
            if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
            w3 = new W3(parent, props3);
            parent.__owl__.cmap[k4] = w3.__owl__.id;
@@ -175,7 +175,7 @@ exports[`basic widget properties same t-keys in two different places 1`] = `
            c5.push(pvnode);
        } else {
            let componentKey6 = \`Child\`;
-            let W6 = context.constructor.components[componentKey6] || QWeb.components[componentKey6]|| scope['Child'];
+            let W6 = scope['Child'] || context.constructor.components[componentKey6] || QWeb.components[componentKey6];
            if (!W6) {throw new Error('Cannot find the definition of component \\"' + componentKey6 + '\\"')}
            w6 = new W6(parent, props6);
            parent.__owl__.cmap[k7] = w6.__owl__.id;
@@ -218,7 +218,7 @@ exports[`basic widget properties t-key on a component with t-if, and a sibling c
                c1.push(pvnode);
            } else {
                let componentKey2 = \`Child\`;
-                let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+                let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
                if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
                w2 = new W2(parent, props2);
                parent.__owl__.cmap[k3] = w2.__owl__.id;
@@ -243,7 +243,7 @@ exports[`basic widget properties t-key on a component with t-if, and a sibling c
        c1.push(pvnode);
    } else {
        let componentKey4 = \`Child\`;
-        let W4 = context.constructor.components[componentKey4] || QWeb.components[componentKey4]|| scope['Child'];
+        let W4 = scope['Child'] || context.constructor.components[componentKey4] || QWeb.components[componentKey4];
        if (!W4) {throw new Error('Cannot find the definition of component \\"' + componentKey4 + '\\"')}
        w4 = new W4(parent, props4);
        parent.__owl__.cmap['__5__'] = w4.__owl__.id;
@@ -301,7 +301,7 @@ exports[`composition sub components with some state rendered in a loop 1`] = `
                c1.push(pvnode);
            } else {
                let componentKey6 = \`ChildWidget\`;
-                let W6 = context.constructor.components[componentKey6] || QWeb.components[componentKey6]|| scope['ChildWidget'];
+                let W6 = scope['ChildWidget'] || context.constructor.components[componentKey6] || QWeb.components[componentKey6];
                if (!W6) {throw new Error('Cannot find the definition of component \\"' + componentKey6 + '\\"')}
                w6 = new W6(parent, props6);
                parent.__owl__.cmap[k7] = w6.__owl__.id;
@@ -342,7 +342,7 @@ exports[`composition t-component with dynamic value 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = (scope['state'].widget);
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2];
+        let W2 = false || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -380,7 +380,7 @@ exports[`composition t-component with dynamic value 2 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Widget\${scope['state'].widget}\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2];
+        let W2 = false || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -440,11 +440,11 @@ exports[`composition t-ref on a node, and t-on-click 2`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('click', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('click', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -478,7 +478,7 @@ exports[`dynamic t-props basic use 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -523,7 +523,7 @@ exports[`other directives with t-component slot setted value (with t-set) not ac
        c1.push(pvnode);
    } else {
        let componentKey3 = \`ChildWidget\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['ChildWidget'];
+        let W3 = scope['ChildWidget'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap['__4__'] = w3.__owl__.id;
@@ -579,7 +579,7 @@ exports[`other directives with t-component t-on expression captured in t-foreach
        c6.push(vn7);
        const otherState_8 = scope['otherState'];
        const iter_8 = scope.iter;
-        p7.on['click'] = function (e) {if (!context.__owl__.isMounted){return}otherState_8.vals.push(iter_8+'_'+iter_8)};
+        p7.on['click'] = function (e) {if (context.__owl__.status === 5){return}otherState_8.vals.push(iter_8+'_'+iter_8)};
        c7.push({text: \`expr\`});
        utils.getScope(scope, 'iter').iter = scope.iter+1;
    }
@@ -630,7 +630,7 @@ exports[`other directives with t-component t-on expression in t-foreach 1`] = `
        c6.push(vn9);
        const otherState_10 = scope['otherState'];
        const val_10 = scope['val'];
-        p9.on['click'] = function (e) {if (!context.__owl__.isMounted){return}otherState_10.vals.push(val_10)};
+        p9.on['click'] = function (e) {if (context.__owl__.status === 5){return}otherState_10.vals.push(val_10)};
        c9.push({text: \`Expr\`});
    }
    scope = _origScope5;
@@ -684,7 +684,7 @@ exports[`other directives with t-component t-on expression in t-foreach with t-s
        const otherState_10 = scope['otherState'];
        const val_10 = scope['val'];
        const bossa_10 = scope.bossa;
-        p9.on['click'] = function (e) {if (!context.__owl__.isMounted){return}otherState_10.vals.push(val_10+'_'+bossa_10)};
+        p9.on['click'] = function (e) {if (context.__owl__.status === 5){return}otherState_10.vals.push(val_10+'_'+bossa_10)};
        c9.push({text: \`Expr\`});
    }
    scope = _origScope5;
@@ -734,7 +734,7 @@ exports[`other directives with t-component t-on method call in t-foreach 1`] = `
        let vn9 = h('button', p9, c9);
        c6.push(vn9);
        let args10 = [scope['val']];
-        p9.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['addVal'](...args10, e);};
+        p9.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['addVal'](...args10, e);};
        c9.push({text: \`meth call\`});
    }
    scope = _origScope5;
@@ -766,11 +766,11 @@ exports[`other directives with t-component t-on with .capture modifier 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('click', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['capture'](e);}, true);}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('click', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['capture'](e);}, true);}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -808,11 +808,11 @@ exports[`other directives with t-component t-on with getter as handler 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey3 = \`Child\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['Child'];
+        let W3 = scope['Child'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap['__4__'] = w3.__owl__.id;
-        let fiber = w3.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['handler'](e);});}});});
+        let fiber = w3.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['handler'](e);});}});});
        let pvnode = h('dummy', {key: '__4__', hook: {remove() {},destroy(vn) {w3.destroy();}}});
        c1.push(pvnode);
        w3.__owl__.pvnode = pvnode;
@@ -847,11 +847,11 @@ exports[`other directives with t-component t-on with handler bound to argument 1
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -886,11 +886,11 @@ exports[`other directives with t-component t-on with handler bound to empty obje
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -925,11 +925,11 @@ exports[`other directives with t-component t-on with handler bound to empty obje
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -964,11 +964,11 @@ exports[`other directives with t-component t-on with handler bound to object 1`]
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](...args4, e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1007,11 +1007,11 @@ exports[`other directives with t-component t-on with inline statement 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey3 = \`Child\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['Child'];
+        let W3 = scope['Child'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap['__4__'] = w3.__owl__.id;
-        let fiber = w3.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}state_5.counter++});}});});
+        let fiber = w3.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}state_5.counter++});}});});
        let pvnode = h('dummy', {key: '__4__', hook: {remove() {},destroy(vn) {w3.destroy();}}});
        c1.push(pvnode);
        w3.__owl__.pvnode = pvnode;
@@ -1045,11 +1045,11 @@ exports[`other directives with t-component t-on with no handler (only modifiers)
        c1.push(pvnode);
    } else {
        let componentKey2 = \`ComponentA\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['ComponentA'];
+        let W2 = scope['ComponentA'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1083,11 +1083,11 @@ exports[`other directives with t-component t-on with prevent and self modifiers
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();if (e.target !== vn.elm) {return}utils.getComponent(context)['onEv'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}e.preventDefault();if (e.target !== vn.elm) {return}utils.getComponent(context)['onEv'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1121,11 +1121,11 @@ exports[`other directives with t-component t-on with self and prevent modifiers
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}if (e.target !== vn.elm) {return}e.preventDefault();utils.getComponent(context)['onEv'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}if (e.target !== vn.elm) {return}e.preventDefault();utils.getComponent(context)['onEv'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1159,11 +1159,11 @@ exports[`other directives with t-component t-on with self modifier 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev-1', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv1'](e);});vn.elm.addEventListener('ev-2', function (e) {if (!context.__owl__.isMounted){return}if (e.target !== vn.elm) {return}utils.getComponent(context)['onEv2'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev-1', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv1'](e);});vn.elm.addEventListener('ev-2', function (e) {if (context.__owl__.status === 5){return}if (e.target !== vn.elm) {return}utils.getComponent(context)['onEv2'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1197,11 +1197,11 @@ exports[`other directives with t-component t-on with stop and/or prevent modifie
        c1.push(pvnode);
    } else {
        let componentKey2 = \`child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+        let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
-        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev-1', function (e) {if (!context.__owl__.isMounted){return}e.stopPropagation();utils.getComponent(context)['onEv1'](e);});vn.elm.addEventListener('ev-2', function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();utils.getComponent(context)['onEv2'](e);});vn.elm.addEventListener('ev-3', function (e) {if (!context.__owl__.isMounted){return}e.stopPropagation();e.preventDefault();utils.getComponent(context)['onEv3'](e);});}});});
+        let fiber = w2.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev-1', function (e) {if (context.__owl__.status === 5){return}e.stopPropagation();utils.getComponent(context)['onEv1'](e);});vn.elm.addEventListener('ev-2', function (e) {if (context.__owl__.status === 5){return}e.preventDefault();utils.getComponent(context)['onEv2'](e);});vn.elm.addEventListener('ev-3', function (e) {if (context.__owl__.status === 5){return}e.stopPropagation();e.preventDefault();utils.getComponent(context)['onEv3'](e);});}});});
        let pvnode = h('dummy', {key: '__3__', hook: {remove() {},destroy(vn) {w2.destroy();}}});
        c1.push(pvnode);
        w2.__owl__.pvnode = pvnode;
@@ -1337,7 +1337,7 @@ exports[`other directives with t-component t-set not altered by child widget 1`]
        c1.push(pvnode);
    } else {
        let componentKey3 = \`ChildWidget\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['ChildWidget'];
+        let W3 = scope['ChildWidget'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap['__4__'] = w3.__owl__.id;
@@ -1432,7 +1432,7 @@ exports[`props evaluation  t-set with a body expression can be used as textual p
        c1.push(pvnode);
    } else {
        let componentKey3 = \`Child\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['Child'];
+        let W3 = scope['Child'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap['__4__'] = w3.__owl__.id;
@@ -1491,7 +1491,7 @@ exports[`random stuff/miscellaneous snapshotting compiled code 1`] = `
            c1.push(pvnode);
        } else {
            let componentKey2 = \`child\`;
-            let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['child'];
+            let W2 = scope['child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
            if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
            w2 = new W2(parent, props2);
            parent.__owl__.cmap[k3] = w2.__owl__.id;
@@ -1551,11 +1551,11 @@ exports[`random stuff/miscellaneous t-on with handler bound to dynamic argument
                c1.push(pvnode);
            } else {
                let componentKey6 = \`Child\`;
-                let W6 = context.constructor.components[componentKey6] || QWeb.components[componentKey6]|| scope['Child'];
+                let W6 = scope['Child'] || context.constructor.components[componentKey6] || QWeb.components[componentKey6];
                if (!W6) {throw new Error('Cannot find the definition of component \\"' + componentKey6 + '\\"')}
                w6 = new W6(parent, props6);
                parent.__owl__.cmap[k7] = w6.__owl__.id;
-                let fiber = w6.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onEv'](...args8, e);});}});});
+                let fiber = w6.__prepare(extra.fiber, undefined, () => { const vnode = fiber.vnode; pvnode.sel = vnode.sel; utils.assignHooks(vnode.data, {create(_, vn){vn.elm.addEventListener('ev', function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onEv'](...args8, e);});}});});
                let pvnode = h('dummy', {key: k7, hook: {remove() {},destroy(vn) {w6.destroy();}}});
                c1.push(pvnode);
                w6.__owl__.pvnode = pvnode;
@@ -1573,6 +1573,7 @@ exports[`t-call handlers are properly bound through a t-call 1`] = `
 ) {
    // Template name: \\"sub\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let h = this.h;
    let c2 = extra.parentNode;
    let key0 = extra.key || \\"\\";
@@ -1580,7 +1581,7 @@ exports[`t-call handlers are properly bound through a t-call 1`] = `
    let vn3 = h('p', p3, c3);
    c2.push(vn3);
    let k4 = \`click__4__\${key0}__\`;
-    extra.handlers[k4] = extra.handlers[k4] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['update'](e);};
+    extra.handlers[k4] = extra.handlers[k4] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['update'](e);};
    p3.on['click'] = extra.handlers[k4];
    c3.push({text: \`lucas\`});
 }"
@@ -1591,6 +1592,7 @@ exports[`t-call handlers with arguments are properly bound through a t-call 1`]
 ) {
    // Template name: \\"sub\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c2 = extra.parentNode;
@@ -1599,7 +1601,7 @@ exports[`t-call handlers with arguments are properly bound through a t-call 1`]
    let vn3 = h('p', p3, c3);
    c2.push(vn3);
    let args4 = [scope['a']];
-    p3.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['update'](...args4, e);};
+    p3.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['update'](...args4, e);};
    c3.push({text: \`lucas\`});
 }"
 `;
@@ -1629,7 +1631,7 @@ exports[`t-call parent is set within t-call 1`] = `
        c2.push(pvnode);
    } else {
        let componentKey3 = \`Child\`;
-        let W3 = context.constructor.components[componentKey3] || QWeb.components[componentKey3]|| scope['Child'];
+        let W3 = scope['Child'] || context.constructor.components[componentKey3] || QWeb.components[componentKey3];
        if (!W3) {throw new Error('Cannot find the definition of component \\"' + componentKey3 + '\\"')}
        w3 = new W3(parent, props3);
        parent.__owl__.cmap[k4] = w3.__owl__.id;
@@ -1667,7 +1669,7 @@ exports[`t-call parent is set within t-call with no parentNode 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap[k3] = w2.__owl__.id;
@@ -2062,7 +2064,7 @@ exports[`top level sub widgets basic use 1`] = `
        utils.defineProxy(vn3, pvnode);
    } else {
        let componentKey1 = \`Child\`;
-        let W1 = context.constructor.components[componentKey1] || QWeb.components[componentKey1]|| scope['Child'];
+        let W1 = scope['Child'] || context.constructor.components[componentKey1] || QWeb.components[componentKey1];
        if (!W1) {throw new Error('Cannot find the definition of component \\"' + componentKey1 + '\\"')}
        w1 = new W1(parent, props1);
        parent.__owl__.cmap['__2__'] = w1.__owl__.id;
@@ -2102,7 +2104,7 @@ exports[`top level sub widgets can select a sub widget  1`] = `
            utils.defineProxy(vn3, pvnode);
        } else {
            let componentKey1 = \`Child\`;
-            let W1 = context.constructor.components[componentKey1] || QWeb.components[componentKey1]|| scope['Child'];
+            let W1 = scope['Child'] || context.constructor.components[componentKey1] || QWeb.components[componentKey1];
            if (!W1) {throw new Error('Cannot find the definition of component \\"' + componentKey1 + '\\"')}
            w1 = new W1(parent, props1);
            parent.__owl__.cmap['__2__'] = w1.__owl__.id;
@@ -2129,7 +2131,7 @@ exports[`top level sub widgets can select a sub widget  1`] = `
            utils.defineProxy(vn6, pvnode);
        } else {
            let componentKey4 = \`OtherChild\`;
-            let W4 = context.constructor.components[componentKey4] || QWeb.components[componentKey4]|| scope['OtherChild'];
+            let W4 = scope['OtherChild'] || context.constructor.components[componentKey4] || QWeb.components[componentKey4];
            if (!W4) {throw new Error('Cannot find the definition of component \\"' + componentKey4 + '\\"')}
            w4 = new W4(parent, props4);
            parent.__owl__.cmap['__5__'] = w4.__owl__.id;
@@ -24,7 +24,7 @@ exports[`props validation props are validated in dev mode (code snapshot) 1`] =
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Child\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Child'];
+        let W2 = scope['Child'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -24,7 +24,7 @@ exports[`t-slot directive can define and call slots 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Dialog\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Dialog'];
+        let W2 = scope['Dialog'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -68,6 +68,7 @@ exports[`t-slot directive can define and call slots 3`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_header_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    let c5 = [], p5 = {key:5};
@@ -81,6 +82,7 @@ exports[`t-slot directive can define and call slots 4`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_footer_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c6 = extra.parentNode;
    let c7 = [], p7 = {key:7};
@@ -114,7 +116,7 @@ exports[`t-slot directive can define and call slots using old t-set keyword 1`]
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Dialog\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Dialog'];
+        let W2 = scope['Dialog'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -158,6 +160,7 @@ exports[`t-slot directive can define and call slots using old t-set keyword 3`]
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_header_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    let c5 = [], p5 = {key:5};
@@ -171,6 +174,7 @@ exports[`t-slot directive can define and call slots using old t-set keyword 4`]
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_footer_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c6 = extra.parentNode;
    let c7 = [], p7 = {key:7};
@@ -184,6 +188,7 @@ exports[`t-slot directive content is the default slot 1`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    let c5 = [], p5 = {key:5};
@@ -214,6 +219,7 @@ exports[`t-slot directive default slot work with text nodes 1`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    c4.push({text: \`sts rocks\`});
@@ -229,7 +235,7 @@ exports[`t-slot directive dynamic t-slot call 1`] = `
    let h = this.h;
    let c10 = [], p10 = {key:10,on:{}};
    let vn10 = h('button', p10, c10);
-    extra.handlers['click__11__'] = extra.handlers['click__11__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['toggle'](e);};
+    extra.handlers['click__11__'] = extra.handlers['click__11__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['toggle'](e);};
    p10.on['click'] = extra.handlers['click__11__'];
    const slot12 = this.constructor.slots[context.__owl__.slotId + '_' + (scope['current'].slot)];
    if (slot12) {
@@ -243,6 +249,7 @@ exports[`t-slot directive multiple roots are allowed in a default slot 1`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    let c5 = [], p5 = {key:5};
@@ -260,6 +267,7 @@ exports[`t-slot directive multiple roots are allowed in a named slot 1`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_content_template\\"
+    let parent = extra.parent;
    let h = this.h;
    let c4 = extra.parentNode;
    let c5 = [], p5 = {key:5};
@@ -295,13 +303,14 @@ exports[`t-slot directive refs are properly bound in slots 1`] = `
 ) {
    // Template name: \\"slot_footer_template\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    context.__owl__.refs = context.__owl__.refs || {};
    let h = this.h;
    let c8 = extra.parentNode;
    let c9 = [], p9 = {key:9,on:{}};
    let vn9 = h('button', p9, c9);
    c8.push(vn9);
-    extra.handlers['click__10__'] = extra.handlers['click__10__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](e);};
+    extra.handlers['click__10__'] = extra.handlers['click__10__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](e);};
    p9.on['click'] = extra.handlers['click__10__'];
    const ref11 = \`myButton\`;
    p9.hook = {
@@ -321,12 +330,13 @@ exports[`t-slot directive slots are rendered with proper context 1`] = `
 ) {
    // Template name: \\"slot_footer_template\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let h = this.h;
    let c8 = extra.parentNode;
    let c9 = [], p9 = {key:9,on:{}};
    let vn9 = h('button', p9, c9);
    c8.push(vn9);
-    extra.handlers['click__10__'] = extra.handlers['click__10__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](e);};
+    extra.handlers['click__10__'] = extra.handlers['click__10__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](e);};
    p9.on['click'] = extra.handlers['click__10__'];
    c9.push({text: \`do something\`});
 }"
@@ -397,7 +407,7 @@ exports[`t-slot directive slots are rendered with proper context, part 2 2`] = `
            c7.push(pvnode);
        } else {
            let componentKey8 = \`Link\`;
-            let W8 = context.constructor.components[componentKey8] || QWeb.components[componentKey8]|| scope['Link'];
+            let W8 = scope['Link'] || context.constructor.components[componentKey8] || QWeb.components[componentKey8];
            if (!W8) {throw new Error('Cannot find the definition of component \\"' + componentKey8 + '\\"')}
            w8 = new W8(parent, props8);
            parent.__owl__.cmap[k9] = w8.__owl__.id;
@@ -418,6 +428,7 @@ exports[`t-slot directive slots are rendered with proper context, part 2 3`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c10 = extra.parentNode;
@@ -495,7 +506,7 @@ exports[`t-slot directive slots are rendered with proper context, part 3 2`] = `
            c7.push(pvnode);
        } else {
            let componentKey8 = \`Link\`;
-            let W8 = context.constructor.components[componentKey8] || QWeb.components[componentKey8]|| scope['Link'];
+            let W8 = scope['Link'] || context.constructor.components[componentKey8] || QWeb.components[componentKey8];
            if (!W8) {throw new Error('Cannot find the definition of component \\"' + componentKey8 + '\\"')}
            w8 = new W8(parent, props8);
            parent.__owl__.cmap[k9] = w8.__owl__.id;
@@ -516,6 +527,7 @@ exports[`t-slot directive slots are rendered with proper context, part 3 3`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c10 = extra.parentNode;
@@ -551,7 +563,7 @@ exports[`t-slot directive slots are rendered with proper context, part 4 1`] = `
        c1.push(pvnode);
    } else {
        let componentKey2 = \`Link\`;
-        let W2 = context.constructor.components[componentKey2] || QWeb.components[componentKey2]|| scope['Link'];
+        let W2 = scope['Link'] || context.constructor.components[componentKey2] || QWeb.components[componentKey2];
        if (!W2) {throw new Error('Cannot find the definition of component \\"' + componentKey2 + '\\"')}
        w2 = new W2(parent, props2);
        parent.__owl__.cmap['__3__'] = w2.__owl__.id;
@@ -570,6 +582,7 @@ exports[`t-slot directive slots are rendered with proper context, part 4 2`] = `
 "function anonymous(context, extra
 ) {
    // Template name: \\"slot_default_template\\"
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c4 = extra.parentNode;
@@ -1,4 +1,4 @@
-import { Component, Env } from "../../src/component/component";
+import { Component, Env, STATUS } from "../../src/component/component";
 import { useState } from "../../src/hooks";
 import { xml } from "../../src/tags";
 import { makeDeferred, makeTestEnv, makeTestFixture, nextMicroTick, nextTick } from "../helpers";
@@ -40,14 +40,14 @@ describe("async rendering", () => {
      }
    }
    const w = new W();
+    expect(w.__owl__.status).toBe(STATUS.CREATED);
    w.mount(fixture);
-    expect(w.__owl__.isDestroyed).toBe(false);
-    expect(w.__owl__.isMounted).toBe(false);
+    expect(w.__owl__.status).toBe(STATUS.WILLSTARTED);
    w.destroy();
+    expect(w.__owl__.status).toBe(STATUS.DESTROYED);
    def.resolve();
    await nextTick();
-    expect(w.__owl__.isDestroyed).toBe(true);
-    expect(w.__owl__.isMounted).toBe(false);
+    expect(w.__owl__.status).toBe(STATUS.DESTROYED);
  });

  test("destroying/recreating a subwidget with different props (if start is not over)", async () => {
@@ -1,4 +1,4 @@
-import { Component, Env, mount } from "../../src/component/component";
+import { Component, Env, mount, STATUS } from "../../src/component/component";
 import { EventBus } from "../../src/core/event_bus";
 import { useRef, useState } from "../../src/hooks";
 import { QWeb } from "../../src/qweb/qweb";
@@ -163,7 +163,7 @@ describe("basic widget properties", () => {
    expect(fixture.innerHTML).toBe("<div><span></span></div>");
  });

-  test("cannot be clicked on and updated if not in DOM", async () => {
+  test("can be clicked on and updated if not in DOM", async () => {
    class Counter extends Component {
      static template = xml`
      <div><t t-esc="state.counter"/><button t-on-click="state.counter++">Inc</button></div>`;
@@ -178,8 +178,8 @@ describe("basic widget properties", () => {
    const button = (<HTMLElement>counter.el).getElementsByTagName("button")[0];
    button.click();
    await nextTick();
-    expect(target.innerHTML).toBe("<div>0<button>Inc</button></div>");
-    expect(counter.state.counter).toBe(0);
+    expect(target.innerHTML).toBe("<div>1<button>Inc</button></div>");
+    expect(counter.state.counter).toBe(1);
  });

  test("widget style and classname", async () => {
@@ -661,9 +661,8 @@ describe("lifecycle hooks", () => {

    class ChildWidget extends Component {
      static template = xml`<div/>`;
-      constructor(parent) {
-        super(parent);
-        steps.push("init");
+      setup() {
+        steps.push("setup");
      }
      async willStart() {
        steps.push("willstart");
@@ -687,10 +686,10 @@ describe("lifecycle hooks", () => {

    const widget = new ParentWidget();
    await widget.mount(fixture);
-    expect(steps).toEqual(["init", "willstart", "mounted"]);
+    expect(steps).toEqual(["setup", "willstart", "mounted"]);
    widget.state.ok = false;
    await nextTick();
-    expect(steps).toEqual(["init", "willstart", "mounted", "willunmount"]);
+    expect(steps).toEqual(["setup", "willstart", "mounted", "willunmount"]);
  });

  test("components are unmounted and destroyed if no longer in DOM, even after updateprops", async () => {
@@ -738,8 +737,7 @@ describe("lifecycle hooks", () => {

    class ChildWidget extends Component {
      static template = xml`<div/>`;
-      constructor(parent) {
-        super(parent);
+      setup() {
        steps.push("c init");
      }
      async willStart() {
@@ -755,8 +753,7 @@ describe("lifecycle hooks", () => {
    class ParentWidget extends Component {
      static template = xml`<div><t t-component="child"/></div>`;
      static components = { child: ChildWidget };
-      constructor(parent?) {
-        super(parent);
+      setup() {
        steps.push("p init");
      }
      async willStart() {
@@ -1038,8 +1035,7 @@ describe("destroy method", () => {
    expect(document.contains(widget.el)).toBe(true);
    widget.destroy();
    expect(document.contains(widget.el)).toBe(false);
-    expect(widget.__owl__.isMounted).toBe(false);
-    expect(widget.__owl__.isDestroyed).toBe(true);
+    expect(widget.__owl__.status).toBe(STATUS.DESTROYED);
  });

  test("destroying a parent also destroys its children", async () => {
@@ -1048,9 +1044,9 @@ describe("destroy method", () => {

    const child = children(parent)[0];

-    expect(child.__owl__.isDestroyed).toBe(false);
+    expect(child.__owl__.status).toBe(STATUS.MOUNTED);
    parent.destroy();
-    expect(child.__owl__.isDestroyed).toBe(true);
+    expect(child.__owl__.status).toBe(STATUS.DESTROYED);
  });

  test("destroy remove the parent/children link", async () => {
@@ -1076,17 +1072,15 @@ describe("destroy method", () => {
    }
    expect(fixture.innerHTML).toBe("");
    const widget = new DelayedWidget();
+    expect(widget.__owl__.status).toBe(STATUS.CREATED);
    widget.mount(fixture);
-    expect(widget.__owl__.isMounted).toBe(false);
-    expect(widget.__owl__.isDestroyed).toBe(false);
+    expect(widget.__owl__.status).toBe(STATUS.WILLSTARTED);
    widget.destroy();
-    expect(widget.__owl__.isMounted).toBe(false);
-    expect(widget.__owl__.isDestroyed).toBe(true);
+    expect(widget.__owl__.status).toBe(STATUS.DESTROYED);
    def.resolve();
    await nextTick();

-    expect(widget.__owl__.isMounted).toBe(false);
-    expect(widget.__owl__.isDestroyed).toBe(true);
+    expect(widget.__owl__.status).toBe(STATUS.DESTROYED);
    expect(widget.__owl__.vnode).toBe(undefined);
    expect(fixture.innerHTML).toBe("");
    expect(isRendered).toBe(false);
@@ -1248,6 +1242,23 @@ describe("composition", () => {
    delete QWeb.components["WidgetB"];
  });

+  test("don't fallback to global/component's registry if widget defined in the instance's context", async () => {
+    QWeb.registerComponent("WidgetB", WidgetB); // should not use this widget
+    env.qweb.addTemplate("ParentWidget", `<div><t t-component="WidgetB"/></div>`);
+    env.qweb.addTemplate("ComponentWidgetB", `<span>Belgium</span>`); // should not use this widget either
+    env.qweb.addTemplate("InstanceWidgetB", `<span>Chocolate</span>`); // should use this
+    class ComponentWidgetB extends Component {}
+    class InstanceWidgetB extends Component {}
+    class ParentWidget extends Component {
+      static components = { WidgetB: ComponentWidgetB };
+      WidgetB = InstanceWidgetB;
+    }
+    const widget = new ParentWidget();
+    await widget.mount(fixture);
+    expect(fixture.innerHTML).toBe("<div><span>Chocolate</span></div>");
+    delete QWeb.components["WidgetB"];
+  });
+
  test("can define components in template without t-component", async () => {
    env.qweb.addTemplates(`
      <templates>
@@ -1542,7 +1553,7 @@ describe("composition", () => {
    parent.state.flag = true;
    await nextTick();
    expect(children(parent)[0]).toBe(child);
-    expect(child.__owl__.isDestroyed).toBe(false);
+    expect(child.__owl__.status).toBe(STATUS.MOUNTED);
    expect(normalize(fixture.innerHTML)).toBe(
      normalize(`
      <div>
@@ -2290,9 +2301,29 @@ describe("other directives with t-component", () => {
    el.click();
    expect(steps).toEqual(["click"]);
    parent.unmount();
-    expect(child.__owl__.isMounted).toBe(false);
+    expect(child.__owl__.status).toBe(STATUS.UNMOUNTED);
    el.click();
-    expect(steps).toEqual(["click"]);
+    expect(steps).toEqual(["click", "click"]);
+  });
+
+  test("triggering custom event on mounted components", async () => {
+    let value = false;
+    class Child extends Component {
+      static template = xml`<div/>`;
+      mounted() {
+        this.trigger("coucou");
+      }
+    }
+    class Parent extends Component {
+      static template = xml`<Child t-on-coucou="doSomething"/>`;
+      static components = { Child };
+      doSomething() {
+        value = true;
+      }
+    }
+    const parent = new Parent();
+    await parent.mount(fixture);
+    expect(value).toBe(true);
  });

  test("t-on with .capture modifier", async () => {
@@ -2344,7 +2375,7 @@ describe("other directives with t-component", () => {
    expect(steps).toEqual(["click"]);
    parent.state.flag = false;
    await nextTick();
-    expect(child.__owl__.isDestroyed).toBe(true);
+    expect(child.__owl__.status).toBe(STATUS.DESTROYED);
    el.click();
    expect(steps).toEqual(["click"]);
  });
@@ -2379,7 +2410,7 @@ describe("other directives with t-component", () => {
    expect(steps).toEqual(["click"]);
    parent.state.flag = false;
    await nextTick();
-    expect(child.__owl__.isDestroyed).toBe(true);
+    expect(child.__owl__.status).toBe(STATUS.DESTROYED);
    el.click();
    expect(steps).toEqual(["click"]);
  });
@@ -1,4 +1,4 @@
-import { Component, Env } from "../../src/component/component";
+import { Component, Env, mount, STATUS } from "../../src/component/component";
 import { useState } from "../../src/hooks";
 import { xml } from "../../src/tags";
 import { makeTestEnv, makeTestFixture, nextTick } from "../helpers";
@@ -108,7 +108,7 @@ describe("component error handling (catchError)", () => {

    expect(console.error).toBeCalledTimes(0);
    console.error = consoleError;
-    expect(app.__owl__.isDestroyed).toBe(true);
+    expect(app.__owl__.status).toBe(STATUS.DESTROYED);
    expect(handler).toBeCalledTimes(1);
  });

@@ -520,4 +520,70 @@ describe("component error handling (catchError)", () => {
    expect(error).toBeDefined();
    expect(error.message).toBe("Cannot read property 'y' of undefined");
  });
+
+  test("simple catchError", async () => {
+    class Boom extends Component {
+      static template = xml`<div t-esc="a.b.c"/>`;
+    }
+
+    class Parent extends Component {
+      static template = xml`
+        <div>
+          <t t-if="error">Error</t>
+          <t t-else="">
+            <Boom />
+          </t>
+        </div>`;
+      static components = { Boom };
+
+      error = false;
+
+      catchError(error) {
+        this.error = error;
+        this.render();
+      }
+    }
+
+    await mount(Parent, { target: fixture });
+    expect(fixture.innerHTML).toBe("<div>Error</div>");
+  });
+
+  test("catchError in catchError", async () => {
+    class Boom extends Component {
+      static template = xml`<div t-esc="a.b.c"/>`;
+    }
+
+    class Child extends Component {
+      static template = xml`
+        <div>
+          <Boom />
+        </div>`;
+      static components = { Boom };
+
+      catchError(error) {
+        throw error;
+      }
+    }
+
+    class Parent extends Component {
+      static template = xml`
+        <div>
+          <t t-if="error">Error</t>
+          <t t-else="">
+            <Child />
+          </t>
+        </div>`;
+      static components = { Child };
+
+      error = false;
+
+      catchError(error) {
+        this.error = error;
+        this.render();
+      }
+    }
+
+    await mount(Parent, { target: fixture });
+    expect(fixture.innerHTML).toBe("<div>Error</div>");
+  });
 });
@@ -1118,4 +1118,37 @@ describe("t-slot directive", () => {

    expect(env.qweb.templates[Toggler.template].fn.toString()).toMatchSnapshot();
  });
+
+  test("t-slot within dynamic t-call", async () => {
+    let child;
+    class Child extends Component {
+      static template = xml`<div class="child"/>`;
+      constructor(...args) {
+        super(...args);
+        child = this;
+      }
+    }
+
+    class Slotted extends Component {
+      static template = xml`<div class="slotted"><t t-slot="default" /></div>`;
+    }
+
+    class UsingTcallInSlotted extends Component {
+      tcallTemplate = xml`<div class="slot"><Child/></div>`;
+      static template = xml`
+      <div>
+        <Slotted>
+          <t t-call="{{ tcallTemplate }}"/>
+        </Slotted>
+      </div>`;
+      static components = { Slotted, Child };
+    }
+
+    await mount(UsingTcallInSlotted, { target: fixture });
+
+    expect(child.__owl__.parent).toBeInstanceOf(Slotted);
+    expect(fixture.innerHTML).toBe(
+      `<div><div class="slotted"><div class="slot"><div class="child"></div></div></div></div>`
+    );
+  });
 });
@@ -338,6 +338,22 @@ describe("unmounting and remounting", () => {
    expect(detachedDiv.innerHTML).toBe("<div>2</div>");
  });

+  test("change state and render while not mounted ", async () => {
+    class App extends Component {
+      static template = xml`<div><t t-esc="state.val"/></div>`;
+      state = useState({ val: 1 });
+    }
+
+    const app = new App(null);
+
+    app.state.val = 2; // will call the render method (before being mounted)
+    await nextTick();
+
+    await app.mount(fixture);
+
+    expect(fixture.innerHTML).toBe("<div>2</div>");
+  });
+
  test("destroy and change state after mounted in detached dom", async () => {
    class App extends Component {
      static template = xml`<div><t t-esc="state.val"/></div>`;
@@ -388,6 +404,40 @@ describe("unmounting and remounting", () => {
    expect(fixture.innerHTML).toBe("<div>P2<span>C2</span></div>");
  });

+  test("change state while component is mounted in a fragment", async () => {
+    class Child1 extends Component {
+      static template = xml`<span>C1</span>`;
+    }
+
+    class Child2 extends Component {
+      static template = xml`<span>C2</span>`;
+    }
+
+    class Parent extends Component {
+      static components = { Child1, Child2 };
+      static template = xml`
+        <div>
+          <Child1 t-if="child == 'c1'"/>
+          <Child2 t-if="child == 'c2'"/>
+        </div>`;
+      child: string | false = false;
+    }
+
+    const fragment = document.createDocumentFragment();
+    const parent = new Parent();
+    await parent.mount(fragment);
+    expect(parent.el.outerHTML).toBe("<div></div>");
+
+    parent.child = "c1";
+    parent.render();
+    await Promise.resolve();
+
+    parent.child = "c2";
+    await parent.mount(fixture);
+
+    expect(fixture.innerHTML).toBe("<div><span>C2</span></div>");
+  });
+
  test("unmount component during a re-rendering", async () => {
    const def = makeDeferred();
    class Child extends Component {
@@ -474,17 +524,17 @@ describe("unmounting and remounting", () => {
    // one full tick.
    await nextMicroTick();
    await nextMicroTick();
-    expect(steps).toEqual(["1 catch"]);
+    expect(steps).toEqual([]);
    await nextTick();
    expect(fixture.innerHTML).toBe("<div></div><span></span>");

    def.resolve();
    await nextTick();
-    expect(steps).toEqual(["1 catch", "2 resolved"]);
+    expect(steps).toEqual(["2 resolved"]);
    expect(fixture.innerHTML).toBe("<div></div><span><div>Hey</div></span>");
  });

-  test("widget can be mounted on same target, another situation", async () => {
+  test("component can be mounted on same target, another situation", async () => {
    const def = makeDeferred();
    const steps: string[] = [];

@@ -512,8 +562,8 @@ describe("unmounting and remounting", () => {

    def.resolve();
    await nextTick();
-    expect(steps).toEqual(["1 resolved", "2 resolved"]);
    expect(fixture.innerHTML).toBe("<div>Hey</div>");
+    expect(steps).toEqual(["1 resolved", "2 resolved"]);
  });

  test("mounting a destroyed widget", async () => {
@@ -1,4 +1,4 @@
-import { Env, Component } from "../src/component/component";
+import { Env, Component, STATUS } from "../src/component/component";
 import { scheduler } from "../src/component/scheduler";
 import { EvalContext, QWeb } from "../src/qweb/qweb";
 import { CompilationContext } from "../src/qweb/compilation_context";
@@ -92,7 +92,7 @@ export function renderToDOM(
  if (!context.__owl__) {
    // we add `__owl__` to better simulate a component as context.  This is
    // particularly important for event handlers added with the `t-on` directive.
-    context.__owl__ = { isMounted: true };
+    context.__owl__ = { status: STATUS.MOUNTED };
  }
  const vnode = qweb.render(template, context, extra);

@@ -1514,6 +1514,7 @@ exports[`t-call (template calling recursive template, part 1 2`] = `
 ) {
    // Template name: \\"recursive\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c3 = extra.parentNode;
@@ -1530,7 +1531,7 @@ exports[`t-call (template calling recursive template, part 1 2`] = `
        scope = Object.create(scope);
        scope.__access_mode__ = 'ro';
        let k7 = \`__7__\${key0}__\`;
-        this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c4, parent: utils.getComponent(context), key: k7}));
+        this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c4, parent: parent, key: k7}));
        scope = _origScope6;
    }
 }"
@@ -1566,6 +1567,7 @@ exports[`t-call (template calling recursive template, part 2 2`] = `
 ) {
    // Template name: \\"nodeTemplate\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c2 = extra.parentNode;
@@ -1607,7 +1609,7 @@ exports[`t-call (template calling recursive template, part 2 2`] = `
                scope[utils.zero] = c__0;
            }
            let k11 = \`__11__\${key0}__\${key1}__\`;
-            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: utils.getComponent(context), key: k11}));
+            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: parent, key: k11}));
        }
        scope = _origScope10;
    }
@@ -1645,6 +1647,7 @@ exports[`t-call (template calling recursive template, part 3 2`] = `
 ) {
    // Template name: \\"nodeTemplate\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c2 = extra.parentNode;
@@ -1686,7 +1689,7 @@ exports[`t-call (template calling recursive template, part 3 2`] = `
                scope[utils.zero] = c__0;
            }
            let k11 = \`__11__\${key0}__\${key1}__\`;
-            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: utils.getComponent(context), key: k11}));
+            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: parent, key: k11}));
        }
        scope = _origScope10;
    }
@@ -1725,6 +1728,7 @@ exports[`t-call (template calling recursive template, part 4: with t-set recursi
 ) {
    // Template name: \\"nodeTemplate\\"
    let utils = this.constructor.utils;
+    let parent = extra.parent;
    let scope = Object.create(context);
    let h = this.h;
    let c2 = extra.parentNode;
@@ -1771,7 +1775,7 @@ exports[`t-call (template calling recursive template, part 4: with t-set recursi
                scope[utils.zero] = c__0;
            }
            let k11 = \`__11__\${key0}__\${key1}__\`;
-            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: utils.getComponent(context), key: k11}));
+            this.constructor.subTemplates['1'].call(this, scope, Object.assign({}, extra, {parentNode: c3, parent: parent, key: k11}));
        }
        scope = _origScope10;
    }
@@ -2727,7 +2731,7 @@ exports[`t-on can bind event handler 1`] = `
    let h = this.h;
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
-    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['add'](e);};
+    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['add'](e);};
    p1.on['click'] = extra.handlers['click__2__'];
    c1.push({text: \`Click\`});
    return vn1;
@@ -2744,7 +2748,7 @@ exports[`t-on can bind handlers with arguments 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    let args2 = [5];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['add'](...args2, e);};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['add'](...args2, e);};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2760,7 +2764,7 @@ exports[`t-on can bind handlers with empty object (with non empty inner string)
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    let args2 = [{}];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](...args2, e);};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](...args2, e);};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2776,7 +2780,7 @@ exports[`t-on can bind handlers with empty object 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    let args2 = [{}];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](...args2, e);};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](...args2, e);};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2815,7 +2819,7 @@ exports[`t-on can bind handlers with loop variable as argument 1`] = `
        let vn7 = h('a', p7, c7);
        c6.push(vn7);
        let args8 = [scope['action']];
-        p7.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['activate'](...args8, e);};
+        p7.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['activate'](...args8, e);};
        c7.push({text: \`link\`});
    }
    scope = _origScope5;
@@ -2833,7 +2837,7 @@ exports[`t-on can bind handlers with object arguments 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    let args2 = [{val:5}];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['add'](...args2, e);};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['add'](...args2, e);};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2847,9 +2851,9 @@ exports[`t-on can bind two event handlers 1`] = `
    let h = this.h;
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
-    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['handleClick'](e);};
+    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['handleClick'](e);};
    p1.on['click'] = extra.handlers['click__2__'];
-    extra.handlers['dblclick__3__'] = extra.handlers['dblclick__3__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['handleDblClick'](e);};
+    extra.handlers['dblclick__3__'] = extra.handlers['dblclick__3__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['handleDblClick'](e);};
    p1.on['dblclick'] = extra.handlers['dblclick__3__'];
    c1.push({text: \`Click\`});
    return vn1;
@@ -2864,7 +2868,7 @@ exports[`t-on handler is bound to proper owner 1`] = `
    let h = this.h;
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
-    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['add'](e);};
+    extra.handlers['click__2__'] = extra.handlers['click__2__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['add'](e);};
    p1.on['click'] = extra.handlers['click__2__'];
    c1.push({text: \`Click\`});
    return vn1;
@@ -2883,7 +2887,7 @@ exports[`t-on t-on combined with t-esc 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onClick'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onClick'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    let _4 = scope['text'];
    if (_4 != null) {
@@ -2905,7 +2909,7 @@ exports[`t-on t-on combined with t-raw 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onClick'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onClick'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    let _4 = scope['html'];
    if (_4 != null) {
@@ -2923,12 +2927,12 @@ exports[`t-on t-on with .capture modifier 1`] = `
    let h = this.h;
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('div', p1, c1);
-    extra.handlers['!click__2__'] = extra.handlers['!click__2__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onCapture'](e);};
+    extra.handlers['!click__2__'] = extra.handlers['!click__2__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onCapture'](e);};
    p1.on['!click'] = extra.handlers['!click__2__'];
    let c3 = [], p3 = {key:3,on:{}};
    let vn3 = h('button', p3, c3);
    c1.push(vn3);
-    extra.handlers['click__4__'] = extra.handlers['click__4__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['doSomething'](e);};
+    extra.handlers['click__4__'] = extra.handlers['click__4__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['doSomething'](e);};
    p3.on['click'] = extra.handlers['click__4__'];
    c3.push({text: \`Button\`});
    return vn1;
@@ -2946,7 +2950,7 @@ exports[`t-on t-on with empty handler (only modifiers) 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    p2.on['click'] = function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();};
+    p2.on['click'] = function (e) {if (context.__owl__.status === 5){return}e.preventDefault();};
    c2.push({text: \`Button\`});
    return vn1;
 }"
@@ -2961,7 +2965,7 @@ exports[`t-on t-on with inline statement (function call) 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    const state_2 = scope['state'];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}state_2.incrementCounter(2)};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}state_2.incrementCounter(2)};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2976,7 +2980,7 @@ exports[`t-on t-on with inline statement 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    const state_2 = scope['state'];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}state_2.counter++};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}state_2.counter++};
    c1.push({text: \`Click\`});
    return vn1;
 }"
@@ -2991,7 +2995,7 @@ exports[`t-on t-on with inline statement, part 2 1`] = `
    let c1 = [], p1 = {key:1,on:{}};
    let vn1 = h('button', p1, c1);
    const state_2 = scope['state'];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}state_2.flag=!state_2.flag};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}state_2.flag=!state_2.flag};
    c1.push({text: \`Toggle\`});
    return vn1;
 }"
@@ -3007,7 +3011,7 @@ exports[`t-on t-on with inline statement, part 3 1`] = `
    let vn1 = h('button', p1, c1);
    const state_2 = scope['state'];
    const someFunction_2 = scope['someFunction'];
-    p1.on['click'] = function (e) {if (!context.__owl__.isMounted){return}state_2.n=someFunction_2(3)};
+    p1.on['click'] = function (e) {if (context.__owl__.status === 5){return}state_2.n=someFunction_2(3)};
    c1.push({text: \`Toggle\`});
    return vn1;
 }"
@@ -3024,7 +3028,7 @@ exports[`t-on t-on with prevent and self modifiers (order matters) 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();if (e.target !== this.elm) {return}utils.getComponent(context)['onClick'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}e.preventDefault();if (e.target !== this.elm) {return}utils.getComponent(context)['onClick'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    let c4 = [], p4 = {key:4};
    let vn4 = h('span', p4, c4);
@@ -3045,19 +3049,19 @@ exports[`t-on t-on with prevent and/or stop modifiers 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();utils.getComponent(context)['onClickPrevented'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}e.preventDefault();utils.getComponent(context)['onClickPrevented'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    c2.push({text: \`Button 1\`});
    let c4 = [], p4 = {key:4,on:{}};
    let vn4 = h('button', p4, c4);
    c1.push(vn4);
-    extra.handlers['click__5__'] = extra.handlers['click__5__'] || function (e) {if (!context.__owl__.isMounted){return}e.stopPropagation();utils.getComponent(context)['onClickStopped'](e);};
+    extra.handlers['click__5__'] = extra.handlers['click__5__'] || function (e) {if (context.__owl__.status === 5){return}e.stopPropagation();utils.getComponent(context)['onClickStopped'](e);};
    p4.on['click'] = extra.handlers['click__5__'];
    c4.push({text: \`Button 2\`});
    let c6 = [], p6 = {key:6,on:{}};
    let vn6 = h('button', p6, c6);
    c1.push(vn6);
-    extra.handlers['click__7__'] = extra.handlers['click__7__'] || function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();e.stopPropagation();utils.getComponent(context)['onClickPreventedAndStopped'](e);};
+    extra.handlers['click__7__'] = extra.handlers['click__7__'] || function (e) {if (context.__owl__.status === 5){return}e.preventDefault();e.stopPropagation();utils.getComponent(context)['onClickPreventedAndStopped'](e);};
    p6.on['click'] = extra.handlers['click__7__'];
    c6.push({text: \`Button 3\`});
    return vn1;
@@ -3097,7 +3101,7 @@ exports[`t-on t-on with prevent modifier in t-foreach 1`] = `
            let vn7 = h('a', p7, c7);
            c1.push(vn7);
            let args8 = [scope['project'].id];
-            p7.on['click'] = function (e) {if (!context.__owl__.isMounted){return}e.preventDefault();utils.getComponent(context)['onEdit'](...args8, e);};
+            p7.on['click'] = function (e) {if (context.__owl__.status === 5){return}e.preventDefault();utils.getComponent(context)['onEdit'](...args8, e);};
            c7.push({text: \` Edit \`});
            let _9 = scope['project'].name;
            if (_9 != null) {
@@ -3121,7 +3125,7 @@ exports[`t-on t-on with self and prevent modifiers (order matters) 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}if (e.target !== this.elm) {return}e.preventDefault();utils.getComponent(context)['onClick'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}if (e.target !== this.elm) {return}e.preventDefault();utils.getComponent(context)['onClick'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    let c4 = [], p4 = {key:4};
    let vn4 = h('span', p4, c4);
@@ -3142,7 +3146,7 @@ exports[`t-on t-on with self modifier 1`] = `
    let c2 = [], p2 = {key:2,on:{}};
    let vn2 = h('button', p2, c2);
    c1.push(vn2);
-    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['onClick'](e);};
+    extra.handlers['click__3__'] = extra.handlers['click__3__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['onClick'](e);};
    p2.on['click'] = extra.handlers['click__3__'];
    let c4 = [], p4 = {key:4};
    let vn4 = h('span', p4, c4);
@@ -3151,7 +3155,7 @@ exports[`t-on t-on with self modifier 1`] = `
    let c5 = [], p5 = {key:5,on:{}};
    let vn5 = h('button', p5, c5);
    c1.push(vn5);
-    extra.handlers['click__6__'] = extra.handlers['click__6__'] || function (e) {if (!context.__owl__.isMounted){return}if (e.target !== this.elm) {return}utils.getComponent(context)['onClickSelf'](e);};
+    extra.handlers['click__6__'] = extra.handlers['click__6__'] || function (e) {if (context.__owl__.status === 5){return}if (e.target !== this.elm) {return}utils.getComponent(context)['onClickSelf'](e);};
    p5.on['click'] = extra.handlers['click__6__'];
    let c7 = [], p7 = {key:7};
    let vn7 = h('span', p7, c7);
@@ -0,0 +1,71 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`qweb t-tag simple usecases 1`] = `
+"function anonymous(context, extra
+) {
+    // Template name: \\"test\\"
+    let scope = Object.create(context);
+    let result;
+    let h = this.h;
+    let c1 = [], p1 = {key:1};
+    let tag2 = 'div';
+    let vn1 = h(tag2, p1, c1);
+    result = vn1;
+    return result;
+}"
+`;
+
+exports[`qweb t-tag simple usecases 2`] = `
+"function anonymous(context, extra
+) {
+    // Template name: \\"test\\"
+    let scope = Object.create(context);
+    let result;
+    let h = this.h;
+    let c3 = [], p3 = {key:3};
+    let tag4 = scope['tag'];
+    let vn3 = h(tag4, p3, c3);
+    result = vn3;
+    c3.push({text: \`text\`});
+    return result;
+}"
+`;
+
+exports[`qweb t-tag with multiple attributes 1`] = `
+"function anonymous(context, extra
+) {
+    // Template name: \\"test\\"
+    let scope = Object.create(context);
+    let result;
+    let h = this.h;
+    let _2 = {'blueberry':true};
+    let _3 = 'raspberry';
+    let c4 = [], p4 = {key:4,attrs:{taste: _3},class:_2};
+    let tag5 = scope['tag'];
+    let vn4 = h(tag5, p4, c4);
+    result = vn4;
+    c4.push({text: \`gooseberry\`});
+    return result;
+}"
+`;
+
+exports[`qweb t-tag with multiple child nodes 1`] = `
+"function anonymous(context, extra
+) {
+    // Template name: \\"test\\"
+    let scope = Object.create(context);
+    let result;
+    let h = this.h;
+    let c1 = [], p1 = {key:1};
+    let tag2 = scope['tag'];
+    let vn1 = h(tag2, p1, c1);
+    result = vn1;
+    c1.push({text: \` pear \`});
+    let c3 = [], p3 = {key:3};
+    let vn3 = h('span', p3, c3);
+    c1.push(vn3);
+    c3.push({text: \`apple\`});
+    c1.push({text: \` strawberry \`});
+    return result;
+}"
+`;
@@ -196,4 +196,8 @@ describe("expression evaluation", () => {
    expect(compileExpr("f(...state.list)", {})).toBe("scope['f'](...scope['state'].list)");
    expect(compileExpr("f([...list])", {})).toBe("scope['f']([...scope['list']])");
  });
+
+  test("works with builtin properties", () => {
+    expect(compileExpr("state.constructor.name", {})).toBe("scope['state'].constructor.name");
+  });
 });
@@ -0,0 +1,42 @@
+import { QWeb } from "../../src/qweb/index";
+import { renderToString } from "../helpers";
+
+//------------------------------------------------------------------------------
+// Setup and helpers
+//------------------------------------------------------------------------------
+
+function render(template, context = {}) {
+  const qweb = new QWeb();
+  qweb.addTemplate("test", template);
+  return renderToString(qweb, "test", context);
+}
+
+//------------------------------------------------------------------------------
+// Tests
+//------------------------------------------------------------------------------
+
+describe("qweb t-tag", () => {
+  test("simple usecases", () => {
+    expect(render(`<t t-tag="'div'"></t>`)).toBe("<div></div>");
+    expect(render(`<t t-tag="tag">text</t>`, { tag: "span" })).toBe("<span>text</span>");
+  });
+
+  test("with multiple child nodes", () => {
+    const template = `
+            <t t-tag="tag">
+                pear
+                <span>apple</span>
+                strawberry
+            </t>`;
+    expect(render(template, { tag: "div" })).toBe(
+      "<div> pear <span>apple</span> strawberry </div>"
+    );
+  });
+
+  test("with multiple attributes", () => {
+    const template = `
+            <t t-tag="tag" class="blueberry" taste="raspberry">gooseberry</t>`;
+    const expected = `<div taste=\"raspberry\" class=\"blueberry\">gooseberry</div>`;
+    expect(render(template, { tag: "div" })).toBe(expected);
+  });
+});
@@ -11,7 +11,7 @@ exports[`Link component can render simple cases 1`] = `
    let _6 = scope['href'];
    let c7 = [], p7 = {key:7,attrs:{href: _6},class:_5,on:{}};
    let vn7 = h('a', p7, c7);
-    extra.handlers['click__8__'] = extra.handlers['click__8__'] || function (e) {if (!context.__owl__.isMounted){return}utils.getComponent(context)['navigate'](e);};
+    extra.handlers['click__8__'] = extra.handlers['click__8__'] || function (e) {if (context.__owl__.status === 5){return}utils.getComponent(context)['navigate'](e);};
    p7.on['click'] = extra.handlers['click__8__'];
    const slot9 = this.constructor.slots[context.__owl__.slotId + '_' + 'default'];
    if (slot9) {
@@ -29,7 +29,7 @@ exports[`RouteComponent can render simple cases 1`] = `
                utils.defineProxy(vn6, pvnode);
            } else {
                let componentKey4 = \`routeComponent\`;
-                let W4 = context.constructor.components[componentKey4] || QWeb.components[componentKey4]|| scope['routeComponent'];
+                let W4 = scope['routeComponent'] || context.constructor.components[componentKey4] || QWeb.components[componentKey4];
                if (!W4) {throw new Error('Cannot find the definition of component \\"' + componentKey4 + '\\"')}
                w4 = new W4(parent, props4);
                parent.__owl__.cmap[k5] = w4.__owl__.id;
@@ -103,4 +103,28 @@ describe("RouteComponent", () => {
    await app.mount(fixture);
    expect(fixture.innerHTML).toBe("<div><span>Book 1984|124</span></div>");
  });
+
+  test("can render parameterized route where params are not separated by slashes", async () => {
+    env.qweb.addTemplates(`
+        <templates>
+            <div t-name="App">
+                <RouteComponent />
+            </div>
+            <span t-name="Book">Book <t t-esc="props.title"/>|<t t-esc="props.val"/></span>
+        </templates>
+    `);
+    class Book extends Component {}
+    class App extends Component {
+      static components = { RouteComponent };
+    }
+
+    const routes = [
+      { name: "book", path: "/#title={{title}}&val={{val.number}}", component: Book },
+    ];
+    router = new TestRouter(env, routes, { mode: "hash" });
+    await router.navigate({ to: "book", params: { title: "1984", val: "123" } });
+    const app = new App();
+    await app.mount(fixture);
+    expect(fixture.innerHTML).toBe("<div><span>Book 1984|123</span></div>");
+  });
 });
@@ -1,6 +1,6 @@
 import { Destination, RouterEnv, Route } from "../../src/router/router";
 import { makeTestEnv, nextTick } from "../helpers";
-import { TestRouter } from "./test_router";
+import { TestRouter, getRouteParams } from "./test_router";

 let env: RouterEnv;
 let router: TestRouter | null = null;
@@ -107,60 +107,64 @@ describe("destToPath", () => {

 describe("getRouteParams", () => {
  test("properly match simple routes", () => {
-    router = new TestRouter(env, []);
    // simple route
-    expect(router["getRouteParams"]({ path: "/home" } as Route, "/home")).toEqual({});
+    expect(getRouteParams({ path: "/home" }, "/home")).toEqual({});

    // no match
-    expect(router["getRouteParams"]({ path: "/home" } as Route, "/otherpath")).toEqual(false);
+    expect(getRouteParams({ path: "/home" }, "/otherpath")).toEqual(false);

    // fallback route
-    expect(router["getRouteParams"]({ path: "*" } as Route, "somepath")).toEqual({});
+    expect(getRouteParams({ path: "*" }, "somepath")).toEqual({});
  });

  test("properly match simple routes, mode hash", () => {
-    router = new TestRouter(env, [], { mode: "hash" });
    // simple route
-    expect(router["getRouteParams"]({ path: "/home" } as Route, "#/home")).toEqual({});
+    expect(getRouteParams({ path: "/home" }, "#/home")).toEqual({});

    // no match
-    expect(router["getRouteParams"]({ path: "/home" } as Route, "#/otherpath")).toEqual(false);
+    expect(getRouteParams({ path: "/home" }, "#/otherpath")).toEqual(false);

    // fallback route
-    expect(router["getRouteParams"]({ path: "*" } as Route, "#/somepath")).toEqual({});
+    expect(getRouteParams({ path: "*" }, "#/somepath")).toEqual({});
  });

  test("match some parameterized routes", () => {
-    router = new TestRouter(env, []);
-    expect(router["getRouteParams"]({ path: "/invoices/{{id}}" } as Route, "/invoices/3")).toEqual({
+    expect(getRouteParams({ path: "/invoices/{{id}}" }, "/invoices/3")).toEqual({
      id: "3",
    });
  });

  test("match some parameterized routes, mode hash", () => {
-    router = new TestRouter(env, [], { mode: "hash" });
-    expect(router["getRouteParams"]({ path: "/invoices/{{id}}" } as Route, "#/invoices/3")).toEqual(
-      {
-        id: "3",
-      }
-    );
+    expect(getRouteParams({ path: "/invoices/{{id}}" }, "#/invoices/3")).toEqual({
+      id: "3",
+    });
  });

  test("can convert to number if needed", () => {
-    router = new TestRouter(env, []);
-    expect(
-      router["getRouteParams"]({ path: "/invoices/{{id.number}}" } as Route, "/invoices/3")
-    ).toEqual({
+    expect(getRouteParams({ path: "/invoices/{{id.number}}" }, "/invoices/3")).toEqual({
      id: 3,
    });
  });

  test("can convert to number if needed, mode: hash", () => {
-    router = new TestRouter(env, [], { mode: "hash" });
+    expect(getRouteParams({ path: "/invoices/{{id.number}}" }, "#/invoices/3")).toEqual({
+      id: 3,
+    });
+  });
+
+  test("can extract params not separated by slashes", () => {
+    expect(getRouteParams({ path: "/books/{{id.number}}-{{name}}" }, "/books/3-1984")).toEqual({
+      id: 3,
+      name: "1984",
+    });
+  });
+
+  test("can extract params not separated by slashes, mode: hash", () => {
    expect(
-      router["getRouteParams"]({ path: "/invoices/{{id.number}}" } as Route, "#/invoices/3")
+      getRouteParams({ path: "books&id={{id.number}}&name={{name}}" }, "#books&id=3&name=1984")
    ).toEqual({
      id: 3,
+      name: "1984",
    });
  });
 });
@@ -1,4 +1,5 @@
-import { Router } from "../../src/router/router";
+import { Router, Route, RouterEnv } from "../../src/router/router";
+import { makeTestEnv } from "../helpers";
 import { QWeb } from "../../src/qweb/index";

 export class TestRouter extends Router {
@@ -13,3 +14,13 @@ export class TestRouter extends Router {
    }
  }
 }
+
+export function getRouteParams(route: Partial<Route>, path: string) {
+  const env = <RouterEnv>makeTestEnv();
+  const router = new TestRouter(env, [route]);
+  const {
+    routeIds: [routeId],
+    routes,
+  } = router;
+  return router["getRouteParams"](routes[routeId], path);
+}
@@ -101,7 +101,7 @@
    component.render = function(...args) {
      const __owl__ = component.__owl__;
      let msg = `render`;
-      if (!__owl__.isMounted && !__owl__.currentFiber) {
+      if (__owl__.status !== 3 /* mounted */ && !__owl__.currentFiber) {
        msg += ` (warning: component is not mounted)`;
      }
      log(msg);
@@ -2,8 +2,7 @@ const COMPONENTS = `// In this example, we show how components can be defined an
 const { Component, useState, mount } = owl;

 class Greeter extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ word: 'Hello' });
    }

@@ -14,10 +13,9 @@ class Greeter extends Component {

 // Main root component
 class App extends Component {
-    constructor() {
-        super(...arguments);
-        this.state = useState({ name: 'World'});
-    }
+  setup() {
+    this.state = useState({ name: 'World'});
+  }
 }
 App.components = { Greeter };

@@ -52,8 +50,7 @@ const ANIMATION = `// The goal of this component is to see how the t-transition
 const { Component, useState, mount } = owl;

 class Counter extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ value: 0 });
    }

@@ -63,8 +60,7 @@ class Counter extends Component {
 }

 class App extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ flag: false, componentFlag: false, numbers: [] });
    }

@@ -194,10 +190,9 @@ const LIFECYCLE_DEMO = `// This example shows all the possible lifecycle hooks
 const { Component, useState, mount } = owl;

 class DemoComponent extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ n: 0 });
-        console.log("constructor");
+        console.log("setup");
    }
    async willStart() {
        console.log("willstart");
@@ -223,8 +218,7 @@ class DemoComponent extends Component {
 }

 class App extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ n: 0, flag: true });
    }

@@ -295,8 +289,7 @@ function useMouse() {

 // Main root component
 class App extends owl.Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        // simple state hook (reactive object)
        this.counter = useState({ value: 0 });

@@ -333,8 +326,7 @@ const { Component, Context, mount } = owl;
 const { useContext } = owl.hooks;

 class ToolbarButton extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.theme = useContext(this.env.themeContext);
    }

@@ -468,8 +460,7 @@ const actions = {
 // TodoItem
 //------------------------------------------------------------------------------
 class TodoItem extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        useAutofocus("input");
        this.state = useState({ isEditing: false });
        this.dispatch = useDispatch();
@@ -499,8 +490,7 @@ class TodoItem extends Component {
 // TodoApp
 //------------------------------------------------------------------------------
 class TodoApp extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ filter: "all" });
        this.todos = useStore(state => state.todos);
        this.dispatch = useDispatch();
@@ -1026,8 +1016,7 @@ class FormView extends owl.Component {}
 FormView.components = { AdvancedComponent };

 class Chatter extends owl.Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.messages = Array.from(Array(100).keys());
    }
 }
@@ -1170,8 +1159,7 @@ const SLOTS = `// We show here how slots can be used to create generic component
 const { Component, useState, mount } = owl;

 class Card extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ showContent: true });
    }

@@ -1181,8 +1169,7 @@ class Card extends Component {
 }

 class Counter extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({val: 1});
    }

@@ -1193,8 +1180,7 @@ class Counter extends Component {

 // Main root component
 class App extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({a: 1, b: 3});
    }

@@ -1306,8 +1292,7 @@ class SlowComponent extends Component {
 class NotificationList extends Component {}

 class App extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({ value: 0, notifs: [] });
    }

@@ -1381,8 +1366,7 @@ const FORM = `// This example illustrate how the t-model directive can be used t
 const { Component, useState, mount } = owl;

 class Form extends Component {
-    constructor() {
-        super(...arguments);
+    setup() {
        this.state = useState({
            text: "",
            othertext: "",
@@ -1556,8 +1540,7 @@ const { useRef } = owl.hooks;
 class HelloWorld extends Component {}

 class Counter extends Component {
-  constructor() {
-    super(...arguments);
+  setup() {
    this.state = useState({ value: 0 });
  }

@@ -1610,8 +1593,7 @@ class Window extends Component {
 }

 class WindowManager extends Component {
-  constructor() {
-    super(...arguments);
+  setup() {
    this.windows = [];
    this.nextId = 1;
    this.currentZindex = 1;
@@ -1661,8 +1643,7 @@ class WindowManager extends Component {
 WindowManager.components = { Window };

 class App extends Component {
-  constructor() {
-    super(...arguments);
+  setup() {
    this.wmRef = useRef("wm");
  }

@@ -3,9 +3,11 @@ const readline = require("readline");
 const fs = require("fs");
 const exec = require("child_process").exec;
 const chalk = require("chalk");
+const branchName = require('current-git-branch');

 const REL_NOTES_FILE = `release-notes.md`;
 const STEPS = 8;
+const branch = "master";

 const rl = readline.createInterface({
  input: process.stdin,
@@ -21,6 +23,19 @@ startRelease().then(() => {
 // -----------------------------------------------------------------------------

 async function startRelease() {
+  // First check we are on master
+  if (branchName() !== branch) {
+    logError(`You shall not pass! You are not on the ${branch} branch!`)
+    return;
+  }
+  
+  log("Check if code formatting is right...")
+  const checkFormatting = await execCommand("npm run check-formatting");
+  if (checkFormatting !== 0) {
+    logError("Prettier format validation failed. Aborting.");
+    return;
+  }
+
  log(`*** Owl release script ***`);
  log(`Current Version: ${package.version}`);

@@ -36,7 +51,7 @@ async function startRelease() {
    content = await readFile("./" + file);
  } catch (e) {
    logSubContent(e.message);
-    log("Cannot find release notes... Aborting");
+    logError("Cannot find release notes... Aborting");
    return;
  }
  let shouldBeDraft = await ask(`Should be a draft [y/n] ? (n)`);
@@ -45,12 +60,14 @@ async function startRelease() {
  {
    draft = "--draft";
  }
+  let shouldUploadPlayground = await ask(`Should this release be uploaded on the playground [y/n] ? (y)`);
+  shouldUploadPlayground = shouldUploadPlayground.toLowerCase() !== 'n';

  // ---------------------------------------------------------------------------
  log(`Step 2/${STEPS}: running tests...`);
  const testsResult = await execCommand("npm run test");
  if (testsResult !== 0) {
-    log("Test suite does not pass. Aborting.");
+    logError("Test suite does not pass. Aborting.");
    return;
  }

@@ -64,24 +81,24 @@ async function startRelease() {
  log(`Step 4/${STEPS}: creating git commit...`);
  const gitResult = await execCommand(`git commit -am "[REL] v${next}\n\n${content}"`);
  if (gitResult !== 0) {
-    log("Git commit failed. Aborting.");
+    logError("Git commit failed. Aborting.");
    return;
  }

  // ----------------------------------------------------------------------------
  log(`Step 5/${STEPS}: building owl...`);
-  await execCommand("npm run prettier");
+  await execCommand("rm -rf dist/");
  const buildResult = await execCommand("npm run build");
  if (buildResult !== 0) {
-    log("Build failed. Aborting.");
+    logError("Build failed. Aborting.");
    return;
  }

  // ---------------------------------------------------------------------------
  log(`Step 6/${STEPS}: pushing on github...`);
-  const pushResult = await execCommand("git push");
+  const pushResult = await execCommand("git push origin " + branch);
  if (pushResult !== 0) {
-    log("git push failed. Aborting.");
+    logError("git push failed. Aborting.");
    return;
  }

@@ -90,17 +107,51 @@ async function startRelease() {
  log(`Step 7/${STEPS}: Creating the release...`);
  const relaseResult = await execCommand(`gh release create v${next} dist/*.js ${draft} -F release-notes.md`);
  if (relaseResult !== 0) {
-    log("github release failed. Aborting.");
+    logError("github release failed. Aborting.");
    return;
  }

  log(`Step 8/${STEPS}: publishing module on npm...`);
  await execCommand("npm run publish");
-  
+
  log("Owl Release process completed! Thank you for your patience");
  await execCommand(`gh release view`);
  await execCommand(`gh release view -w`);

+  if (shouldUploadPlayground) {
+    log(`Bonus step: publishing new release on playground...`);
+    let owl_code = null;
+    status = 0
+
+    try {
+      owl_code = await readFile("dist/owl.iife.js");
+    } catch (e) {
+      logSubContent(e.message);
+      logError("Cannot read owl.iife.js... Aborting");
+      return;
+    }
+
+    status += await execCommand("git checkout gh-pages");
+    
+    if (status !== 0) {
+      logError("Couldn't switch to gh-pages branch")
+      return;
+    }
+
+    try {
+      fs.writeFileSync('owl.js', owl_code)
+    } catch (err) {
+      logError(err)
+      return;
+    }
+    
+    status += await execCommand(`git commit -am "[IMP] update owl to v${next}"`);
+    status += await execCommand(`git push origin gh-pages`);
+    status += await execCommand("git checkout -");
+    if (status !== 0) {
+      logError("Something went wrong for the playground update.")
+    }
+  }
 }

 // -----------------------------------------------------------------------------
@@ -111,6 +162,10 @@ function log(text) {
  console.log(chalk.yellow(formatLog(text)));
 }

+function logError(text) {
+  console.log(chalk.red(formatLog(text)));
+}
+
 function formatLog(text) {
  return `[REL] ${text}`;
 }
Author	SHA1	Message	Date
Géry Debongnie	2e83c739b9	[REL] v1.3.2 # v1.3.2 Fixes - components: correctly propagate errors to parent	2021-06-18 10:41:51 +02:00
Géry Debongnie	922eb7cd98	[FIX] component: propagate errors to parent Before this commit, the error handling process was too naive: once an error occurs in a rendering, owl catches it, looks for a component that implements the catchError method, then calls it. However, in real life, we sometimes need to rethrow that error (or another one) to propagate the error to some parent handler. This error needs to be handled by the closest parent component that implements catchError. This is what this commit implements: it wraps the catchError call in a try/catch, then in case of errors, try to handle it by a parent.	2021-06-18 10:34:09 +02:00
Géry Debongnie	d12115554c	[REL] v1.3.1 # v1.3.1 Fixes - components: fix issue with t-call in nested t-slot (parent component was incorrect)	2021-06-10 10:36:33 +02:00
Géry Debongnie	1a6b26c8c6	[REF] cleanup: prettier	2021-06-10 10:23:48 +02:00
Lucas Perais (lpe)	d67d295eaa	[FIX] qweb, t-call: t-call nested in t-slot Have a t-call within a t-set-slot of a component. The called template has a t-component directive. It should be like: ```xml <t t-name="Zero"> <Slotted> <t t-call="someTemplate" /> </Slotted> </t> <t t-name="someTemplate"> <SomeComponent /> </t> ``` Before this commit, the parent of SomeComponent was the Zero component After this commit, the parent of SomeComponent is the Slotted Component as it should be closes #862	2021-06-10 10:00:22 +02:00
Géry Debongnie	9cbcf20b33	[REL] v1.3.0 # v1.3.0 ## Improvements - qweb: add support for directive	2021-06-04 14:19:07 +02:00
Géry Debongnie	3a461e1dd1	[IMP] qweb: add support for t-tag directive Very useful in some cases, when one needs to define a generic component. closes #721	2021-06-04 14:11:31 +02:00
Géry Debongnie	e8387810e6	[REL] v1.2.6 # v1.2.6 ## Fixes - router: add support for arbitrary param placements in paths	2021-05-19 12:28:13 +02:00
Samuel Degueldre	acac9d1741	[FIX] router: add support for more arbitrary param placements in paths Before this commit, params in paths had to be be between slashes and comprise the entirety of the contents between those slashes (eg: `/books/{{id}}/{{name}}`) This is unnecessarily restrictive. This commit removes this restriction, which allows for paths such as: - `/books/{{id}}-{{name}}` - `#books&id={{id}}&name={{name}}` among others closes #858	2021-05-19 12:25:58 +02:00
Géry Debongnie	968a5460bb	[REL] v1.2.5 # v1.2.5 ## Fixes - qweb: correct order for component class lookup (most specific to least specific)	2021-05-18 10:01:22 +02:00
Samuel Degueldre	e646eb697e	[FIX] qweb: fix order of lookup in t-component directive Previously, the order of resolution was: - components defined on the class of the current component - components defined on the QWeb instance - the current instance's context This is unnatural because it doesn't go from most specific to least, as the current instance's context is the most specific. This is also fragile, as adding components to the QWeb instance can break unrelated components. This commit fixes that by making the lookup start with the current component's context instead	2021-05-18 09:58:30 +02:00
Simon Genin (ges)	7dfa901332	[IMP] tooling: improve release script Release script errase dist folder closes #793 Release can only be done on master branch closes #829 Update the playground owl version on release closes #814 Add logError method in release to show messages in red. Check-formatting command added to the release process.	2021-03-30 10:58:25 +02:00
Géry Debongnie	0290f63ba3	[FIX] component: various issues while mounting manually components The initial problem solved by this commit is that it was possible to get into a situation where a mounting/rendering was started, then the component was updated, but then another mounting operation begins, and it tries to reuse the previous rendering operation, which is no longer uptodate. The underlying issue is that Owl did not track properly the various internal state change of a component. These issue should be solved by the introduction of the status enum, which currently tracks 6 possible states: - CREATED - WILLSTARTED - RENDERED - MOUNTED - UNMOUNTED - DESTROYED This status number replaces the isMounted and isDestroyed boolean flags. It has the advantage of making sure that the component is in a consistent state (it is no longer possible to be destroyed and mounted, for example) Another advantage is that it gives us an easy way to track the fact that a component has been rendered, but is not in the DOM. This is a subtle situation where some various events can happen, and we need to be able to react to that case. Note that there is a change of behaviour: if a component is mounted in a specific target, then before the mounting is complete, the component is mounted in another target, we no longer reject the first mounting operation.	2021-02-08 10:59:28 +01:00
Géry Debongnie	370fae4e1a	[FIX] package.json: rollback live-server from 1.2.3 to 1.2.1 No idea why, but it looks like the npm package 1.2.3 disappeared.	2021-02-04 09:07:26 +01:00
Géry Debongnie	76735410f8	[FIX] qweb: prevent issue with builtin object properties The QWeb expression parser use an object as a mapping between some strings and the desired output in the compiled template. However, as we should all know, objects are not Maps, they have some additional properties, such as "constructor" or "hasOwnProperty". The simple solution is to make sure the mapping object does not have anything in its prototype chain to pollute its purpose. closes #835	2021-02-04 09:07:26 +01:00
Géry Debongnie	19a47a7001	[IMP] component: add setup lifecycle hook	2021-02-03 15:32:38 +01:00
Géry Debongnie	398f9f4e53	[IMP] component: can trigger event handlers even if unmounted From the beginning, Owl was designed to only call event handler on components that are mounted in the DOM. The main benefit is that if a component is destroyed, we are guaranteed to not execute any useless (or potentially dangerous code). However, there is one downside: if a component tree is being mounted, and a child component trigger an event in its mounted hook, then it cannot be caught by the parent, since the parent is technically not yet mounted. This may not be a good situation, but the point is that Owl unnecessarily prevent the handler to be called. We can fix this issue by simply checking if the component is not destroyed instead of checking that it is mounted. closes #809	2021-02-03 14:46:18 +01:00
Géry Debongnie	af426aa902	[DOC] misc small fixes closes #827, #825, #822, #821	2021-02-03 13:44:04 +01:00
Géry Debongnie	490cf18079	[REL] v1.2.3 # v1.2.3 This is just another small bug fix release, because we need it in Odoo. Fix: prevent crash when rendering a component before mounting it	2021-01-19 15:39:26 +01:00
Géry Debongnie	dfc782599b	[FIX] crash when rendering component before mounting This commit makes sure that Owl does not crash when a component is created, then updated (for example, with a (observed) state change), and then, some moment later, mounted. The initial render is not useful, because it is not linked to a mounting action anyway. And it caused issues such as a crash when Owl tried to patch it to a non existing target	2021-01-19 15:26:15 +01:00