mirror of
https://github.com/odoo/owl.git
synced 2025-10-06 19:59:41 +07:00
Géry Debongnie
3187 lines
126 KiB
JavaScript
3187 lines
126 KiB
JavaScript
(function (exports) {
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'use strict';
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/**
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* Owl Observer
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*
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* This code contains the logic that allows Owl to observe and react to state
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* changes.
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*
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* This is a Observer class that can observe any JS values. The way it works
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* can be summarized thusly:
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* - primitive values are not observed at all
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* - Objects are observed by replacing all their keys with getters/setters
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* (recursively)
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* - Arrays are observed by replacing their prototype with a customized version,
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* which wrap some methods to allow the tracking of each state change.
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*
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* Note that this code is inspired by Vue.
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*/
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//------------------------------------------------------------------------------
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// Modified Array prototype
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//------------------------------------------------------------------------------
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// we define here a new modified Array prototype, which basically override all
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// Array methods that change some state to be able to track their changes
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const methodsToPatch = [
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"push",
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"pop",
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"shift",
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"unshift",
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"splice",
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"sort",
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"reverse"
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];
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const methodLen = methodsToPatch.length;
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const ArrayProto = Array.prototype;
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const ModifiedArrayProto = Object.create(ArrayProto);
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for (let i = 0; i < methodLen; i++) {
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const method = methodsToPatch[i];
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const initialMethod = ArrayProto[method];
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ModifiedArrayProto[method] = function (...args) {
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if (!this.__observer__.allowMutations) {
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throw new Error(`Array cannot be changed here")`);
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}
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this.__observer__.rev++;
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this.__observer__.notifyChange();
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this.__owl__.rev++;
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let parent = this;
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do {
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parent.__owl__.deepRev++;
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} while ((parent = parent.__owl__.parent));
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let inserted;
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switch (method) {
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case "push":
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case "unshift":
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inserted = args;
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break;
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case "splice":
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inserted = args.slice(2);
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break;
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}
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if (inserted) {
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for (let i = 0, iLen = inserted.length; i < iLen; i++) {
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this.__observer__.observe(inserted[i], this);
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}
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}
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return initialMethod.call(this, ...args);
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};
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}
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//------------------------------------------------------------------------------
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// Observer
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//------------------------------------------------------------------------------
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class Observer {
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constructor() {
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this.rev = 1;
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this.allowMutations = true;
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this.dirty = false;
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}
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notifyCB() { }
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notifyChange() {
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this.dirty = true;
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Promise.resolve().then(() => {
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if (this.dirty) {
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this.dirty = false;
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this.notifyCB();
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}
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});
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}
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observe(value, parent) {
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if (value === null) {
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// fun fact: typeof null === 'object'
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return;
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}
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if (typeof value !== "object") {
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return;
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}
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if ("__owl__" in value) {
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// already observed
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value.__owl__.parent = parent;
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return;
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}
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if (Array.isArray(value)) {
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this._observeArr(value, parent);
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}
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else {
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this._observeObj(value, parent);
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}
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}
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set(target, key, value) {
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let alreadyDefined = key in target &&
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Object.getOwnPropertyDescriptor(target, key).configurable === false;
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if (alreadyDefined) {
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target[key] = value;
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}
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else {
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this._addProp(target, key, value);
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this._updateRevNumber(target);
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}
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this.notifyChange();
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}
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_observeObj(obj, parent) {
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obj.__owl__ = { rev: this.rev, deepRev: this.rev, parent };
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Object.defineProperty(obj, "__owl__", { enumerable: false });
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for (let key in obj) {
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this._addProp(obj, key, obj[key]);
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}
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}
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_observeArr(arr, parent) {
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arr.__owl__ = { rev: this.rev, deepRev: this.rev, parent };
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Object.defineProperty(arr, "__owl__", { enumerable: false });
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arr.__proto__ = Object.create(ModifiedArrayProto);
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arr.__proto__.__observer__ = this;
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for (let i = 0, iLen = arr.length; i < iLen; i++) {
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this.observe(arr[i], arr);
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}
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}
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_addProp(obj, key, value) {
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var self = this;
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Object.defineProperty(obj, key, {
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enumerable: true,
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get() {
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return value;
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},
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set(newVal) {
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if (newVal !== value) {
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if (!self.allowMutations) {
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throw new Error(`Observed state cannot be changed here! (key: "${key}", val: "${newVal}")`);
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}
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self._updateRevNumber(obj);
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value = newVal;
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self.observe(newVal, obj);
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self.notifyChange();
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}
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}
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});
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this.observe(value, obj);
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}
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_updateRevNumber(target) {
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this.rev++;
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target.__owl__.rev++;
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let parent = target;
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do {
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parent.__owl__.deepRev++;
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} while ((parent = parent.__owl__.parent) && parent !== target);
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}
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}
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/**
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* Owl VDOM
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*
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* This file contains an implementation of a virtual DOM, which is a system that
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* can generate in-memory representations of a DOM tree, compare them, and
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* eventually change a concrete DOM tree to match its representation, in an
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* hopefully efficient way.
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*
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* Note that this code is a fork of Snabbdom, slightly tweaked/optimized for our
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* needs (see https://github.com/snabbdom/snabbdom).
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*
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* The main exported values are:
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* - interface VNode
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* - h function (a helper function to generate a vnode)
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* - patch function (to apply a vnode to an actual DOM node)
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*/
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function vnode(sel, data, children, text, elm) {
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let key = data === undefined ? undefined : data.key;
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return {
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sel: sel,
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data: data,
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children: children,
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text: text,
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elm: elm,
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key: key
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};
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}
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//------------------------------------------------------------------------------
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// snabbdom.ts
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//------------------------------------------------------------------------------
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function isUndef(s) {
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return s === undefined;
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}
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function isDef(s) {
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return s !== undefined;
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}
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const emptyNode = vnode("", {}, [], undefined, undefined);
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function sameVnode(vnode1, vnode2) {
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return vnode1.key === vnode2.key && vnode1.sel === vnode2.sel;
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}
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function isVnode(vnode) {
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return vnode.sel !== undefined;
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}
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function createKeyToOldIdx(children, beginIdx, endIdx) {
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let i, map = {}, key, ch;
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for (i = beginIdx; i <= endIdx; ++i) {
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ch = children[i];
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if (ch != null) {
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key = ch.key;
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if (key !== undefined)
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map[key] = i;
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}
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}
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return map;
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}
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const hooks = [
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"create",
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"update",
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"remove",
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"destroy",
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"pre",
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"post"
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];
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function init(modules, domApi) {
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let i, j, cbs = {};
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const api = domApi !== undefined ? domApi : htmlDomApi;
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for (i = 0; i < hooks.length; ++i) {
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cbs[hooks[i]] = [];
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for (j = 0; j < modules.length; ++j) {
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const hook = modules[j][hooks[i]];
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if (hook !== undefined) {
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cbs[hooks[i]].push(hook);
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}
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}
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}
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function emptyNodeAt(elm) {
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const id = elm.id ? "#" + elm.id : "";
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const c = elm.className ? "." + elm.className.split(" ").join(".") : "";
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return vnode(api.tagName(elm).toLowerCase() + id + c, {}, [], undefined, elm);
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}
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function createRmCb(childElm, listeners) {
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return function rmCb() {
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if (--listeners === 0) {
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const parent = api.parentNode(childElm);
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api.removeChild(parent, childElm);
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}
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};
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}
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function createElm(vnode, insertedVnodeQueue) {
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let i, iLen, data = vnode.data;
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if (data !== undefined) {
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if (isDef((i = data.hook)) && isDef((i = i.init))) {
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i(vnode);
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data = vnode.data;
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}
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}
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let children = vnode.children, sel = vnode.sel;
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if (sel === "!") {
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if (isUndef(vnode.text)) {
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vnode.text = "";
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}
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vnode.elm = api.createComment(vnode.text);
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}
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else if (sel !== undefined) {
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// Parse selector
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const hashIdx = sel.indexOf("#");
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const dotIdx = sel.indexOf(".", hashIdx);
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const hash = hashIdx > 0 ? hashIdx : sel.length;
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const dot = dotIdx > 0 ? dotIdx : sel.length;
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const tag = hashIdx !== -1 || dotIdx !== -1
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? sel.slice(0, Math.min(hash, dot))
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: sel;
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const elm = (vnode.elm =
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isDef(data) && isDef((i = data.ns))
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? api.createElementNS(i, tag)
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: api.createElement(tag));
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if (hash < dot)
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elm.setAttribute("id", sel.slice(hash + 1, dot));
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if (dotIdx > 0)
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elm.setAttribute("class", sel.slice(dot + 1).replace(/\./g, " "));
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for (i = 0, iLen = cbs.create.length; i < iLen; ++i)
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cbs.create[i](emptyNode, vnode);
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if (array(children)) {
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for (i = 0, iLen = children.length; i < iLen; ++i) {
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const ch = children[i];
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if (ch != null) {
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api.appendChild(elm, createElm(ch, insertedVnodeQueue));
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}
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}
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}
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else if (primitive(vnode.text)) {
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api.appendChild(elm, api.createTextNode(vnode.text));
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}
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i = vnode.data.hook; // Reuse variable
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if (isDef(i)) {
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if (i.create)
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i.create(emptyNode, vnode);
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if (i.insert)
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insertedVnodeQueue.push(vnode);
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}
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}
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else {
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vnode.elm = api.createTextNode(vnode.text);
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}
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return vnode.elm;
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}
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function addVnodes(parentElm, before, vnodes, startIdx, endIdx, insertedVnodeQueue) {
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for (; startIdx <= endIdx; ++startIdx) {
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const ch = vnodes[startIdx];
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if (ch != null) {
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api.insertBefore(parentElm, createElm(ch, insertedVnodeQueue), before);
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}
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}
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}
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function invokeDestroyHook(vnode) {
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let i, iLen, j, jLen, data = vnode.data;
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if (data !== undefined) {
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if (isDef((i = data.hook)) && isDef((i = i.destroy)))
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i(vnode);
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for (i = 0, iLen = cbs.destroy.length; i < iLen; ++i)
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cbs.destroy[i](vnode);
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if (vnode.children !== undefined) {
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for (j = 0, jLen = vnode.children.length; j < jLen; ++j) {
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i = vnode.children[j];
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if (i != null && typeof i !== "string") {
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invokeDestroyHook(i);
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}
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}
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}
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}
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}
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function removeVnodes(parentElm, vnodes, startIdx, endIdx) {
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for (; startIdx <= endIdx; ++startIdx) {
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let i, iLen, listeners, rm, ch = vnodes[startIdx];
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if (ch != null) {
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if (isDef(ch.sel)) {
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invokeDestroyHook(ch);
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listeners = cbs.remove.length + 1;
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rm = createRmCb(ch.elm, listeners);
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for (i = 0, iLen = cbs.remove.length; i < iLen; ++i)
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cbs.remove[i](ch, rm);
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if (isDef((i = ch.data)) &&
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isDef((i = i.hook)) &&
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isDef((i = i.remove))) {
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i(ch, rm);
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}
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else {
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rm();
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}
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}
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else {
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// Text node
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api.removeChild(parentElm, ch.elm);
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}
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}
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}
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}
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function updateChildren(parentElm, oldCh, newCh, insertedVnodeQueue) {
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let oldStartIdx = 0, newStartIdx = 0;
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let oldEndIdx = oldCh.length - 1;
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let oldStartVnode = oldCh[0];
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let oldEndVnode = oldCh[oldEndIdx];
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let newEndIdx = newCh.length - 1;
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let newStartVnode = newCh[0];
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let newEndVnode = newCh[newEndIdx];
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let oldKeyToIdx;
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let idxInOld;
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let elmToMove;
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let before;
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while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
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if (oldStartVnode == null) {
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oldStartVnode = oldCh[++oldStartIdx]; // Vnode might have been moved left
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}
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else if (oldEndVnode == null) {
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oldEndVnode = oldCh[--oldEndIdx];
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}
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else if (newStartVnode == null) {
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newStartVnode = newCh[++newStartIdx];
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}
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else if (newEndVnode == null) {
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newEndVnode = newCh[--newEndIdx];
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}
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else if (sameVnode(oldStartVnode, newStartVnode)) {
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patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
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oldStartVnode = oldCh[++oldStartIdx];
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newStartVnode = newCh[++newStartIdx];
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}
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else if (sameVnode(oldEndVnode, newEndVnode)) {
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patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
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oldEndVnode = oldCh[--oldEndIdx];
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newEndVnode = newCh[--newEndIdx];
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}
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else if (sameVnode(oldStartVnode, newEndVnode)) {
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// Vnode moved right
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patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
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api.insertBefore(parentElm, oldStartVnode.elm, api.nextSibling(oldEndVnode.elm));
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oldStartVnode = oldCh[++oldStartIdx];
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newEndVnode = newCh[--newEndIdx];
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}
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else if (sameVnode(oldEndVnode, newStartVnode)) {
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// Vnode moved left
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patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
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api.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
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oldEndVnode = oldCh[--oldEndIdx];
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newStartVnode = newCh[++newStartIdx];
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}
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else {
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if (oldKeyToIdx === undefined) {
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oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
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}
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idxInOld = oldKeyToIdx[newStartVnode.key];
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if (isUndef(idxInOld)) {
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// New element
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api.insertBefore(parentElm, createElm(newStartVnode, insertedVnodeQueue), oldStartVnode.elm);
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newStartVnode = newCh[++newStartIdx];
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}
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else {
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elmToMove = oldCh[idxInOld];
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if (elmToMove.sel !== newStartVnode.sel) {
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api.insertBefore(parentElm, createElm(newStartVnode, insertedVnodeQueue), oldStartVnode.elm);
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}
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else {
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patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
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oldCh[idxInOld] = undefined;
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api.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
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}
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newStartVnode = newCh[++newStartIdx];
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}
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}
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}
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if (oldStartIdx <= oldEndIdx || newStartIdx <= newEndIdx) {
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if (oldStartIdx > oldEndIdx) {
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before = newCh[newEndIdx + 1] == null ? null : newCh[newEndIdx + 1].elm;
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addVnodes(parentElm, before, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
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}
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else {
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removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
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}
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}
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}
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function patchVnode(oldVnode, vnode, insertedVnodeQueue) {
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let i, iLen, hook;
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if (isDef((i = vnode.data)) &&
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isDef((hook = i.hook)) &&
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isDef((i = hook.prepatch))) {
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i(oldVnode, vnode);
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}
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const elm = (vnode.elm = oldVnode.elm);
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let oldCh = oldVnode.children;
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let ch = vnode.children;
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if (oldVnode === vnode)
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return;
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if (vnode.data !== undefined) {
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for (i = 0, iLen = cbs.update.length; i < iLen; ++i)
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cbs.update[i](oldVnode, vnode);
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i = vnode.data.hook;
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if (isDef(i) && isDef((i = i.update)))
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i(oldVnode, vnode);
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}
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if (isUndef(vnode.text)) {
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if (isDef(oldCh) && isDef(ch)) {
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if (oldCh !== ch)
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updateChildren(elm, oldCh, ch, insertedVnodeQueue);
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}
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else if (isDef(ch)) {
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if (isDef(oldVnode.text))
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api.setTextContent(elm, "");
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addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
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}
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else if (isDef(oldCh)) {
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removeVnodes(elm, oldCh, 0, oldCh.length - 1);
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}
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else if (isDef(oldVnode.text)) {
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api.setTextContent(elm, "");
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}
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}
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else if (oldVnode.text !== vnode.text) {
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if (isDef(oldCh)) {
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removeVnodes(elm, oldCh, 0, oldCh.length - 1);
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}
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api.setTextContent(elm, vnode.text);
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}
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if (isDef(hook) && isDef((i = hook.postpatch))) {
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i(oldVnode, vnode);
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}
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}
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return function patch(oldVnode, vnode) {
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let i, iLen, elm, parent;
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const insertedVnodeQueue = [];
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for (i = 0, iLen = cbs.pre.length; i < iLen; ++i)
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cbs.pre[i]();
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if (!isVnode(oldVnode)) {
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oldVnode = emptyNodeAt(oldVnode);
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}
|
|
if (sameVnode(oldVnode, vnode)) {
|
|
patchVnode(oldVnode, vnode, insertedVnodeQueue);
|
|
}
|
|
else {
|
|
elm = oldVnode.elm;
|
|
parent = api.parentNode(elm);
|
|
createElm(vnode, insertedVnodeQueue);
|
|
if (parent !== null) {
|
|
api.insertBefore(parent, vnode.elm, api.nextSibling(elm));
|
|
removeVnodes(parent, [oldVnode], 0, 0);
|
|
}
|
|
}
|
|
for (i = 0, iLen = insertedVnodeQueue.length; i < iLen; ++i) {
|
|
insertedVnodeQueue[i].data.hook.insert(insertedVnodeQueue[i]);
|
|
}
|
|
for (i = 0, iLen = cbs.post.length; i < iLen; ++i)
|
|
cbs.post[i]();
|
|
return vnode;
|
|
};
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
// is.ts
|
|
//------------------------------------------------------------------------------
|
|
const array = Array.isArray;
|
|
function primitive(s) {
|
|
return typeof s === "string" || typeof s === "number";
|
|
}
|
|
function createElement(tagName) {
|
|
return document.createElement(tagName);
|
|
}
|
|
function createElementNS(namespaceURI, qualifiedName) {
|
|
return document.createElementNS(namespaceURI, qualifiedName);
|
|
}
|
|
function createTextNode(text) {
|
|
return document.createTextNode(text);
|
|
}
|
|
function createComment(text) {
|
|
return document.createComment(text);
|
|
}
|
|
function insertBefore(parentNode, newNode, referenceNode) {
|
|
parentNode.insertBefore(newNode, referenceNode);
|
|
}
|
|
function removeChild(node, child) {
|
|
node.removeChild(child);
|
|
}
|
|
function appendChild(node, child) {
|
|
node.appendChild(child);
|
|
}
|
|
function parentNode(node) {
|
|
return node.parentNode;
|
|
}
|
|
function nextSibling(node) {
|
|
return node.nextSibling;
|
|
}
|
|
function tagName(elm) {
|
|
return elm.tagName;
|
|
}
|
|
function setTextContent(node, text) {
|
|
node.textContent = text;
|
|
}
|
|
function getTextContent(node) {
|
|
return node.textContent;
|
|
}
|
|
function isElement(node) {
|
|
return node.nodeType === 1;
|
|
}
|
|
function isText(node) {
|
|
return node.nodeType === 3;
|
|
}
|
|
function isComment(node) {
|
|
return node.nodeType === 8;
|
|
}
|
|
const htmlDomApi = {
|
|
createElement,
|
|
createElementNS,
|
|
createTextNode,
|
|
createComment,
|
|
insertBefore,
|
|
removeChild,
|
|
appendChild,
|
|
parentNode,
|
|
nextSibling,
|
|
tagName,
|
|
setTextContent,
|
|
getTextContent,
|
|
isElement,
|
|
isText,
|
|
isComment
|
|
};
|
|
function addNS(data, children, sel) {
|
|
data.ns = "http://www.w3.org/2000/svg";
|
|
if (sel !== "foreignObject" && children !== undefined) {
|
|
for (let i = 0, iLen = children.length; i < iLen; ++i) {
|
|
let childData = children[i].data;
|
|
if (childData !== undefined) {
|
|
addNS(childData, children[i].children, children[i].sel);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
function h(sel, b, c) {
|
|
var data = {}, children, text, i, iLen;
|
|
if (c !== undefined) {
|
|
data = b;
|
|
if (array(c)) {
|
|
children = c;
|
|
}
|
|
else if (primitive(c)) {
|
|
text = c;
|
|
}
|
|
else if (c && c.sel) {
|
|
children = [c];
|
|
}
|
|
}
|
|
else if (b !== undefined) {
|
|
if (array(b)) {
|
|
children = b;
|
|
}
|
|
else if (primitive(b)) {
|
|
text = b;
|
|
}
|
|
else if (b && b.sel) {
|
|
children = [b];
|
|
}
|
|
else {
|
|
data = b;
|
|
}
|
|
}
|
|
if (children !== undefined) {
|
|
for (i = 0, iLen = children.length; i < iLen; ++i) {
|
|
if (primitive(children[i]))
|
|
children[i] = vnode(undefined, undefined, undefined, children[i], undefined);
|
|
}
|
|
}
|
|
if (sel[0] === "s" &&
|
|
sel[1] === "v" &&
|
|
sel[2] === "g" &&
|
|
(sel.length === 3 || sel[3] === "." || sel[3] === "#")) {
|
|
addNS(data, children, sel);
|
|
}
|
|
return vnode(sel, data, children, text, undefined);
|
|
}
|
|
function updateProps(oldVnode, vnode) {
|
|
var key, cur, old, elm = vnode.elm, oldProps = oldVnode.data.props, props = vnode.data.props;
|
|
if (!oldProps && !props)
|
|
return;
|
|
if (oldProps === props)
|
|
return;
|
|
oldProps = oldProps || {};
|
|
props = props || {};
|
|
for (key in oldProps) {
|
|
if (!props[key]) {
|
|
delete elm[key];
|
|
}
|
|
}
|
|
for (key in props) {
|
|
cur = props[key];
|
|
old = oldProps[key];
|
|
if (old !== cur && (key !== "value" || elm[key] !== cur)) {
|
|
elm[key] = cur;
|
|
}
|
|
}
|
|
}
|
|
const propsModule = {
|
|
create: updateProps,
|
|
update: updateProps
|
|
};
|
|
function invokeHandler(handler, vnode, event) {
|
|
if (typeof handler === "function") {
|
|
// call function handler
|
|
handler.call(vnode, event, vnode);
|
|
}
|
|
else if (typeof handler === "object") {
|
|
// call handler with arguments
|
|
if (typeof handler[0] === "function") {
|
|
// special case for single argument for performance
|
|
if (handler.length === 2) {
|
|
handler[0].call(vnode, handler[1], event, vnode);
|
|
}
|
|
else {
|
|
var args = handler.slice(1);
|
|
args.push(event);
|
|
args.push(vnode);
|
|
handler[0].apply(vnode, args);
|
|
}
|
|
}
|
|
else {
|
|
// call multiple handlers
|
|
for (let i = 0, iLen = handler.length; i < iLen; i++) {
|
|
invokeHandler(handler[i], vnode, event);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
function handleEvent(event, vnode) {
|
|
var name = event.type, on = vnode.data.on;
|
|
// call event handler(s) if exists
|
|
if (on && on[name]) {
|
|
invokeHandler(on[name], vnode, event);
|
|
}
|
|
}
|
|
function createListener() {
|
|
return function handler(event) {
|
|
handleEvent(event, handler.vnode);
|
|
};
|
|
}
|
|
function updateEventListeners(oldVnode, vnode) {
|
|
var oldOn = oldVnode.data.on, oldListener = oldVnode.listener, oldElm = oldVnode.elm, on = vnode && vnode.data.on, elm = (vnode && vnode.elm), name;
|
|
// optimization for reused immutable handlers
|
|
if (oldOn === on) {
|
|
return;
|
|
}
|
|
// remove existing listeners which no longer used
|
|
if (oldOn && oldListener) {
|
|
// if element changed or deleted we remove all existing listeners unconditionally
|
|
if (!on) {
|
|
for (name in oldOn) {
|
|
// remove listener if element was changed or existing listeners removed
|
|
oldElm.removeEventListener(name, oldListener, false);
|
|
}
|
|
}
|
|
else {
|
|
for (name in oldOn) {
|
|
// remove listener if existing listener removed
|
|
if (!on[name]) {
|
|
oldElm.removeEventListener(name, oldListener, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// add new listeners which has not already attached
|
|
if (on) {
|
|
// reuse existing listener or create new
|
|
var listener = (vnode.listener =
|
|
oldVnode.listener || createListener());
|
|
// update vnode for listener
|
|
listener.vnode = vnode;
|
|
// if element changed or added we add all needed listeners unconditionally
|
|
if (!oldOn) {
|
|
for (name in on) {
|
|
// add listener if element was changed or new listeners added
|
|
elm.addEventListener(name, listener, false);
|
|
}
|
|
}
|
|
else {
|
|
for (name in on) {
|
|
// add listener if new listener added
|
|
if (!oldOn[name]) {
|
|
elm.addEventListener(name, listener, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
const eventListenersModule = {
|
|
create: updateEventListeners,
|
|
update: updateEventListeners,
|
|
destroy: updateEventListeners
|
|
};
|
|
const xlinkNS = "http://www.w3.org/1999/xlink";
|
|
const xmlNS = "http://www.w3.org/XML/1998/namespace";
|
|
const colonChar = 58;
|
|
const xChar = 120;
|
|
function updateAttrs(oldVnode, vnode) {
|
|
var key, elm = vnode.elm, oldAttrs = oldVnode.data.attrs, attrs = vnode.data.attrs;
|
|
if (!oldAttrs && !attrs)
|
|
return;
|
|
if (oldAttrs === attrs)
|
|
return;
|
|
oldAttrs = oldAttrs || {};
|
|
attrs = attrs || {};
|
|
// update modified attributes, add new attributes
|
|
for (key in attrs) {
|
|
const cur = attrs[key];
|
|
const old = oldAttrs[key];
|
|
if (old !== cur) {
|
|
if (cur === true) {
|
|
elm.setAttribute(key, "");
|
|
}
|
|
else if (cur === false) {
|
|
elm.removeAttribute(key);
|
|
}
|
|
else {
|
|
if (key.charCodeAt(0) !== xChar) {
|
|
elm.setAttribute(key, cur);
|
|
}
|
|
else if (key.charCodeAt(3) === colonChar) {
|
|
// Assume xml namespace
|
|
elm.setAttributeNS(xmlNS, key, cur);
|
|
}
|
|
else if (key.charCodeAt(5) === colonChar) {
|
|
// Assume xlink namespace
|
|
elm.setAttributeNS(xlinkNS, key, cur);
|
|
}
|
|
else {
|
|
elm.setAttribute(key, cur);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// remove removed attributes
|
|
// use `in` operator since the previous `for` iteration uses it (.i.e. add even attributes with undefined value)
|
|
// the other option is to remove all attributes with value == undefined
|
|
for (key in oldAttrs) {
|
|
if (!(key in attrs)) {
|
|
elm.removeAttribute(key);
|
|
}
|
|
}
|
|
}
|
|
const attrsModule = {
|
|
create: updateAttrs,
|
|
update: updateAttrs
|
|
};
|
|
const patch = init([eventListenersModule, attrsModule, propsModule]);
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Const/global stuff/helpers
|
|
//------------------------------------------------------------------------------
|
|
const RESERVED_WORDS = "true,false,NaN,null,undefined,debugger,console,window,in,instanceof,new,function,return,this,typeof,eval,void,Math,RegExp,Array,Object,Date".split(",");
|
|
const WORD_REPLACEMENT = {
|
|
and: "&&",
|
|
or: "||",
|
|
gt: ">",
|
|
gte: ">=",
|
|
lt: "<",
|
|
lte: "<="
|
|
};
|
|
const DISABLED_TAGS = [
|
|
"input",
|
|
"textarea",
|
|
"button",
|
|
"select",
|
|
"option",
|
|
"optgroup"
|
|
];
|
|
const lineBreakRE = /[\r\n]/;
|
|
const whitespaceRE = /\s+/g;
|
|
const DIRECTIVE_NAMES = {
|
|
name: 1,
|
|
att: 1,
|
|
attf: 1,
|
|
key: 1
|
|
};
|
|
const DIRECTIVES = [];
|
|
const NODE_HOOKS_PARAMS = {
|
|
create: "(_, n)",
|
|
insert: "vn",
|
|
remove: "(vn, rm)"
|
|
};
|
|
const UTILS = {
|
|
h: h,
|
|
objectToAttrString(obj) {
|
|
let classes = [];
|
|
for (let k in obj) {
|
|
if (obj[k]) {
|
|
classes.push(k);
|
|
}
|
|
}
|
|
return classes.join(" ");
|
|
},
|
|
shallowEqual(p1, p2) {
|
|
for (let k in p1) {
|
|
if (p1[k] !== p2[k]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
function parseXML(xml) {
|
|
const parser = new DOMParser();
|
|
const doc = parser.parseFromString(xml, "text/xml");
|
|
if (doc.getElementsByTagName("parsererror").length) {
|
|
throw new Error("Invalid XML in template");
|
|
}
|
|
return doc;
|
|
}
|
|
let nextID = 1;
|
|
//------------------------------------------------------------------------------
|
|
// QWeb rendering engine
|
|
//------------------------------------------------------------------------------
|
|
class QWeb {
|
|
constructor(data) {
|
|
this.templates = {};
|
|
this.utils = UTILS;
|
|
// the id field is useful to be able to hash qweb instances. The current
|
|
// use case is that component's templates are qweb dependant, and need to be
|
|
// able to map a qweb instance to a template name.
|
|
this.id = nextID++;
|
|
if (data) {
|
|
this.addTemplates(data);
|
|
}
|
|
this.addTemplate("default", "<div></div>");
|
|
}
|
|
static addDirective(directive) {
|
|
DIRECTIVES.push(directive);
|
|
DIRECTIVE_NAMES[directive.name] = 1;
|
|
DIRECTIVES.sort((d1, d2) => d1.priority - d2.priority);
|
|
if (directive.extraNames) {
|
|
directive.extraNames.forEach(n => (DIRECTIVE_NAMES[n] = 1));
|
|
}
|
|
}
|
|
static register(name, Component) {
|
|
if (QWeb.widgets[name]) {
|
|
throw new Error(`Component '${name}' has already been registered`);
|
|
}
|
|
QWeb.widgets[name] = Component;
|
|
}
|
|
/**
|
|
* Add a template to the internal template map. Note that it is not
|
|
* immediately compiled.
|
|
*/
|
|
addTemplate(name, xmlString) {
|
|
const doc = parseXML(xmlString);
|
|
if (!doc.firstChild) {
|
|
throw new Error("Invalid template (should not be empty)");
|
|
}
|
|
this._addTemplate(name, doc.firstChild);
|
|
}
|
|
/**
|
|
* Load templates from a xml (as a string). This will look up for the first
|
|
* <templates> tag, and will consider each child of this as a template, with
|
|
* the name given by the t-name attribute.
|
|
*/
|
|
addTemplates(xmlstr) {
|
|
const doc = parseXML(xmlstr);
|
|
const templates = doc.getElementsByTagName("templates")[0];
|
|
if (!templates) {
|
|
return;
|
|
}
|
|
for (let elem of templates.children) {
|
|
const name = elem.getAttribute("t-name");
|
|
this._addTemplate(name, elem);
|
|
}
|
|
}
|
|
_addTemplate(name, elem) {
|
|
if (name in this.templates) {
|
|
throw new Error(`Template ${name} already defined`);
|
|
}
|
|
this._processTemplate(elem);
|
|
const template = {
|
|
elem,
|
|
fn: (context, extra) => {
|
|
const compiledFunction = this._compile(name, elem);
|
|
template.fn = compiledFunction;
|
|
return compiledFunction.call(this, context, extra);
|
|
}
|
|
};
|
|
this.templates[name] = template;
|
|
}
|
|
_processTemplate(elem) {
|
|
let tbranch = elem.querySelectorAll("[t-elif], [t-else]");
|
|
for (let i = 0, ilen = tbranch.length; i < ilen; i++) {
|
|
let node = tbranch[i];
|
|
let prevElem = node.previousElementSibling;
|
|
let pattr = function (name) {
|
|
return prevElem.getAttribute(name);
|
|
};
|
|
let nattr = function (name) {
|
|
return +!!node.getAttribute(name);
|
|
};
|
|
if (prevElem && (pattr("t-if") || pattr("t-elif"))) {
|
|
if (pattr("t-foreach")) {
|
|
throw new Error("t-if cannot stay at the same level as t-foreach when using t-elif or t-else");
|
|
}
|
|
if (["t-if", "t-elif", "t-else"].map(nattr).reduce(function (a, b) {
|
|
return a + b;
|
|
}) > 1) {
|
|
throw new Error("Only one conditional branching directive is allowed per node");
|
|
}
|
|
// All text nodes between branch nodes are removed
|
|
let textNode;
|
|
while ((textNode = node.previousSibling) !== prevElem) {
|
|
if (textNode.nodeValue.trim().length) {
|
|
throw new Error("text is not allowed between branching directives");
|
|
}
|
|
textNode.remove();
|
|
}
|
|
}
|
|
else {
|
|
throw new Error("t-elif and t-else directives must be preceded by a t-if or t-elif directive");
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Render a template
|
|
*
|
|
* @param {string} name the template should already have been added
|
|
*/
|
|
render(name, context = {}, extra = null) {
|
|
const template = this.templates[name];
|
|
if (!template) {
|
|
throw new Error(`Template ${name} does not exist`);
|
|
}
|
|
return template.fn.call(this, context, extra);
|
|
}
|
|
_compile(name, elem) {
|
|
const isDebug = elem.attributes.hasOwnProperty("t-debug");
|
|
const ctx = new Context(name);
|
|
this._compileNode(elem, ctx);
|
|
if (ctx.shouldProtectContext) {
|
|
ctx.code.unshift(" context = Object.create(context);");
|
|
}
|
|
if (ctx.shouldDefineOwner) {
|
|
// this is necessary to prevent some directives (t-forach for ex) to
|
|
// pollute the rendering context by adding some keys in it.
|
|
ctx.code.unshift(" let owner = context;");
|
|
}
|
|
if (ctx.shouldDefineQWeb) {
|
|
ctx.code.unshift(" let QWeb = this.constructor;");
|
|
}
|
|
if (ctx.shouldDefineUtils) {
|
|
ctx.code.unshift(" let utils = this.utils;");
|
|
}
|
|
if (!ctx.rootNode) {
|
|
throw new Error("A template should have one root node");
|
|
}
|
|
ctx.addLine(`return vn${ctx.rootNode};`);
|
|
let template;
|
|
try {
|
|
template = new Function("context", "extra", ctx.code.join("\n"));
|
|
}
|
|
catch (e) {
|
|
const templateName = ctx.templateName.replace(/`/g, "'");
|
|
console.groupCollapsed(`Invalid Code generated by ${templateName}`);
|
|
console.warn(ctx.code.join("\n"));
|
|
console.groupEnd();
|
|
throw new Error(`Invalid generated code while compiling template '${templateName}': ${e.message}`);
|
|
}
|
|
if (isDebug) {
|
|
console.log(`Template: ${this.templates[name].elem.outerHTML}\nCompiled code:\n` +
|
|
template.toString());
|
|
}
|
|
return template;
|
|
}
|
|
/**
|
|
* Generate code from an xml node
|
|
*
|
|
*/
|
|
_compileNode(node, ctx) {
|
|
if (!(node instanceof Element)) {
|
|
// this is a text node, there are no directive to apply
|
|
let text = node.textContent;
|
|
if (!ctx.inPreTag) {
|
|
if (lineBreakRE.test(text) && !text.trim()) {
|
|
return;
|
|
}
|
|
text = text.replace(whitespaceRE, " ");
|
|
}
|
|
if (ctx.parentNode) {
|
|
ctx.addLine(`c${ctx.parentNode}.push({text: \`${text}\`});`);
|
|
}
|
|
else {
|
|
// this is an unusual situation: this text node is the result of the
|
|
// template rendering.
|
|
let nodeID = ctx.generateID();
|
|
ctx.addLine(`var vn${nodeID} = {text: \`${text}\`};`);
|
|
ctx.rootContext.rootNode = nodeID;
|
|
ctx.rootContext.parentNode = nodeID;
|
|
}
|
|
return;
|
|
}
|
|
const attributes = node.attributes;
|
|
const validDirectives = [];
|
|
let withHandlers = false;
|
|
// maybe this is not optimal: we iterate on all attributes here, and again
|
|
// just after for each directive.
|
|
for (let i = 0; i < attributes.length; i++) {
|
|
let attrName = attributes[i].name;
|
|
if (attrName.startsWith("t-")) {
|
|
let dName = attrName.slice(2).split("-")[0];
|
|
if (!(dName in DIRECTIVE_NAMES)) {
|
|
throw new Error(`Unknown QWeb directive: '${attrName}'`);
|
|
}
|
|
}
|
|
}
|
|
const DIR_N = DIRECTIVES.length;
|
|
const ATTR_N = attributes.length;
|
|
for (let i = 0; i < DIR_N; i++) {
|
|
let directive = DIRECTIVES[i];
|
|
let fullName;
|
|
let value;
|
|
for (let j = 0; j < ATTR_N; j++) {
|
|
const name = attributes[j].name;
|
|
if (name === "t-" + directive.name ||
|
|
name.startsWith("t-" + directive.name + "-")) {
|
|
fullName = name;
|
|
value = attributes[j].textContent;
|
|
validDirectives.push({ directive, value, fullName });
|
|
if (directive.name === "on") {
|
|
withHandlers = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (let { directive, value, fullName } of validDirectives) {
|
|
if (directive.atNodeEncounter) {
|
|
const isDone = directive.atNodeEncounter({
|
|
node,
|
|
qweb: this,
|
|
ctx,
|
|
fullName,
|
|
value
|
|
});
|
|
if (isDone) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (node.nodeName !== "t") {
|
|
let nodeID = this._compileGenericNode(node, ctx, withHandlers);
|
|
ctx = ctx.withParent(nodeID);
|
|
let nodeHooks = {};
|
|
let addNodeHook = function (hook, handler) {
|
|
nodeHooks[hook] = nodeHooks[hook] || [];
|
|
nodeHooks[hook].push(handler);
|
|
};
|
|
for (let { directive, value, fullName } of validDirectives) {
|
|
if (directive.atNodeCreation) {
|
|
directive.atNodeCreation({
|
|
node,
|
|
qweb: this,
|
|
ctx,
|
|
fullName,
|
|
value,
|
|
nodeID,
|
|
addNodeHook
|
|
});
|
|
}
|
|
}
|
|
if (Object.keys(nodeHooks).length) {
|
|
ctx.addLine(`p${nodeID}.hook = {`);
|
|
for (let hook in nodeHooks) {
|
|
ctx.addLine(` ${hook}: ${NODE_HOOKS_PARAMS[hook]} => {`);
|
|
for (let handler of nodeHooks[hook]) {
|
|
ctx.addLine(` ${handler}`);
|
|
}
|
|
ctx.addLine(` },`);
|
|
}
|
|
ctx.addLine(`};`);
|
|
}
|
|
}
|
|
if (node.nodeName === "pre") {
|
|
ctx = ctx.subContext("inPreTag", true);
|
|
}
|
|
this._compileChildren(node, ctx);
|
|
for (let { directive, value, fullName } of validDirectives) {
|
|
if (directive.finalize) {
|
|
directive.finalize({ node, qweb: this, ctx, fullName, value });
|
|
}
|
|
}
|
|
}
|
|
_compileGenericNode(node, ctx, withHandlers = true) {
|
|
// nodeType 1 is generic tag
|
|
if (node.nodeType !== 1) {
|
|
throw new Error("unsupported node type");
|
|
}
|
|
const attributes = node.attributes;
|
|
const attrs = [];
|
|
const props = [];
|
|
const tattrs = [];
|
|
function handleBooleanProps(key, val) {
|
|
let isProp = false;
|
|
if (node.nodeName === "input" && key === "checked") {
|
|
let type = node.getAttribute("type");
|
|
if (type === "checkbox" || type === "radio") {
|
|
isProp = true;
|
|
}
|
|
}
|
|
if (node.nodeName === "option" && key === "selected") {
|
|
isProp = true;
|
|
}
|
|
if (key === "disabled" && DISABLED_TAGS.indexOf(node.nodeName) > -1) {
|
|
isProp = true;
|
|
}
|
|
if ((key === "readonly" && node.nodeName === "input") ||
|
|
node.nodeName === "textarea") {
|
|
isProp = true;
|
|
}
|
|
if (isProp) {
|
|
props.push(`${key}: _${val}`);
|
|
}
|
|
}
|
|
for (let i = 0; i < attributes.length; i++) {
|
|
let name = attributes[i].name;
|
|
const value = attributes[i].textContent;
|
|
// regular attributes
|
|
if (!name.startsWith("t-") &&
|
|
!node.getAttribute("t-attf-" + name)) {
|
|
const attID = ctx.generateID();
|
|
ctx.addLine(`var _${attID} = '${value}';`);
|
|
if (!name.match(/^[a-zA-Z]+$/)) {
|
|
// attribute contains 'non letters' => we want to quote it
|
|
name = '"' + name + '"';
|
|
}
|
|
attrs.push(`${name}: _${attID}`);
|
|
handleBooleanProps(name, attID);
|
|
}
|
|
// dynamic attributes
|
|
if (name.startsWith("t-att-")) {
|
|
let attName = name.slice(6);
|
|
let formattedValue = ctx.formatExpression(ctx.getValue(value));
|
|
if (formattedValue[0] === "{" &&
|
|
formattedValue[formattedValue.length - 1] === "}") {
|
|
formattedValue = `this.utils.objectToAttrString(${formattedValue})`;
|
|
}
|
|
const attID = ctx.generateID();
|
|
if (!attName.match(/^[a-zA-Z]+$/)) {
|
|
// attribute contains 'non letters' => we want to quote it
|
|
attName = '"' + attName + '"';
|
|
}
|
|
// we need to combine dynamic with non dynamic attributes:
|
|
// class="a" t-att-class="'yop'" should be rendered as class="a yop"
|
|
const attValue = node.getAttribute(attName);
|
|
if (attValue) {
|
|
const attValueID = ctx.generateID();
|
|
ctx.addLine(`var _${attValueID} = ${formattedValue};`);
|
|
formattedValue = `'${attValue}' + (_${attValueID} ? ' ' + _${attValueID} : '')`;
|
|
const attrIndex = attrs.findIndex(att => att.startsWith(attName + ":"));
|
|
attrs.splice(attrIndex, 1);
|
|
}
|
|
ctx.addLine(`var _${attID} = ${formattedValue};`);
|
|
attrs.push(`${attName}: _${attID}`);
|
|
handleBooleanProps(attName, attID);
|
|
}
|
|
if (name.startsWith("t-attf-")) {
|
|
let attName = name.slice(7);
|
|
if (!attName.match(/^[a-zA-Z]+$/)) {
|
|
// attribute contains 'non letters' => we want to quote it
|
|
attName = '"' + attName + '"';
|
|
}
|
|
const formattedExpr = ctx.interpolate(value);
|
|
const attID = ctx.generateID();
|
|
let staticVal = node.getAttribute(attName);
|
|
if (staticVal) {
|
|
ctx.addLine(`var _${attID} = '${staticVal} ' + ${formattedExpr};`);
|
|
}
|
|
else {
|
|
ctx.addLine(`var _${attID} = ${formattedExpr};`);
|
|
}
|
|
attrs.push(`${attName}: _${attID}`);
|
|
}
|
|
// t-att= attributes
|
|
if (name === "t-att") {
|
|
let id = ctx.generateID();
|
|
ctx.addLine(`var _${id} = ${ctx.formatExpression(value)};`);
|
|
tattrs.push(id);
|
|
}
|
|
}
|
|
let nodeID = ctx.generateID();
|
|
let nodeKey = node.getAttribute("t-key");
|
|
if (nodeKey) {
|
|
nodeKey = ctx.formatExpression(nodeKey);
|
|
}
|
|
else {
|
|
nodeKey = nodeID;
|
|
}
|
|
const parts = [`key:${nodeKey}`];
|
|
if (attrs.length + tattrs.length > 0) {
|
|
parts.push(`attrs:{${attrs.join(",")}}`);
|
|
}
|
|
if (props.length > 0) {
|
|
parts.push(`props:{${props.join(",")}}`);
|
|
}
|
|
if (withHandlers) {
|
|
parts.push(`on:{}`);
|
|
}
|
|
ctx.addLine(`let c${nodeID} = [], p${nodeID} = {${parts.join(",")}};`);
|
|
for (let id of tattrs) {
|
|
ctx.addIf(`_${id} instanceof Array`);
|
|
ctx.addLine(`p${nodeID}.attrs[_${id}[0]] = _${id}[1];`);
|
|
ctx.addElse();
|
|
ctx.addLine(`for (let key in _${id}) {`);
|
|
ctx.indent();
|
|
ctx.addLine(`p${nodeID}.attrs[key] = _${id}[key];`);
|
|
ctx.dedent();
|
|
ctx.addLine(`}`);
|
|
ctx.closeIf();
|
|
}
|
|
ctx.addLine(`var vn${nodeID} = h('${node.nodeName}', p${nodeID}, c${nodeID});`);
|
|
if (ctx.parentNode) {
|
|
ctx.addLine(`c${ctx.parentNode}.push(vn${nodeID});`);
|
|
}
|
|
return nodeID;
|
|
}
|
|
_compileChildren(node, ctx) {
|
|
if (node.childNodes.length > 0) {
|
|
for (let child of Array.from(node.childNodes)) {
|
|
this._compileNode(child, ctx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
QWeb.widgets = Object.create(null);
|
|
// dev mode enables better error messages or more costly validations
|
|
QWeb.dev = false;
|
|
//------------------------------------------------------------------------------
|
|
// Compilation Context
|
|
//------------------------------------------------------------------------------
|
|
class Context {
|
|
constructor(name) {
|
|
this.nextID = 1;
|
|
this.code = [];
|
|
this.variables = {};
|
|
this.definedVariables = {};
|
|
this.escaping = false;
|
|
this.parentNode = null;
|
|
this.rootNode = null;
|
|
this.indentLevel = 0;
|
|
this.shouldDefineOwner = false;
|
|
this.shouldDefineQWeb = false;
|
|
this.shouldDefineUtils = false;
|
|
this.shouldProtectContext = false;
|
|
this.inLoop = false;
|
|
this.inPreTag = false;
|
|
this.rootContext = this;
|
|
this.templateName = name || "noname";
|
|
this.addLine("var h = this.utils.h;");
|
|
}
|
|
generateID() {
|
|
const id = this.rootContext.nextID++;
|
|
return id;
|
|
}
|
|
withParent(node) {
|
|
if (this === this.rootContext && this.parentNode) {
|
|
throw new Error("A template should not have more than one root node");
|
|
}
|
|
if (!this.rootContext.rootNode) {
|
|
this.rootContext.rootNode = node;
|
|
}
|
|
return this.subContext("parentNode", node);
|
|
}
|
|
subContext(key, value) {
|
|
const newContext = Object.create(this);
|
|
newContext[key] = value;
|
|
return newContext;
|
|
}
|
|
indent() {
|
|
this.indentLevel++;
|
|
}
|
|
dedent() {
|
|
this.indentLevel--;
|
|
}
|
|
addLine(line) {
|
|
const prefix = new Array(this.indentLevel + 2).join(" ");
|
|
this.code.push(prefix + line);
|
|
}
|
|
addIf(condition) {
|
|
this.addLine(`if (${condition}) {`);
|
|
this.indent();
|
|
}
|
|
addElse() {
|
|
this.dedent();
|
|
this.addLine("} else {");
|
|
this.indent();
|
|
}
|
|
closeIf() {
|
|
this.dedent();
|
|
this.addLine("}");
|
|
}
|
|
getValue(val) {
|
|
return val in this.variables ? this.getValue(this.variables[val]) : val;
|
|
}
|
|
formatExpression(e) {
|
|
e = e.trim();
|
|
if (e[0] === "{" && e[e.length - 1] === "}") {
|
|
const innerExpr = e
|
|
.slice(1, -1)
|
|
.split(",")
|
|
.map(p => {
|
|
let [key, val] = p.trim().split(":");
|
|
if (key === "") {
|
|
return "";
|
|
}
|
|
if (!val) {
|
|
val = key;
|
|
}
|
|
return `${key}: ${this.formatExpression(val)}`;
|
|
})
|
|
.join(",");
|
|
return "{" + innerExpr + "}";
|
|
}
|
|
// Thanks CHM for this code...
|
|
const chars = e.split("");
|
|
let instring = "";
|
|
let invar = "";
|
|
let invarPos = 0;
|
|
let r = "";
|
|
chars.push(" ");
|
|
for (let i = 0, ilen = chars.length; i < ilen; i++) {
|
|
let c = chars[i];
|
|
if (instring.length) {
|
|
if (c === instring && chars[i - 1] !== "\\") {
|
|
instring = "";
|
|
}
|
|
}
|
|
else if (c === '"' || c === "'") {
|
|
instring = c;
|
|
}
|
|
else if (c.match(/[a-zA-Z_\$]/) && !invar.length) {
|
|
invar = c;
|
|
invarPos = i;
|
|
continue;
|
|
}
|
|
else if (c.match(/\W/) && invar.length) {
|
|
// TODO: Should check for possible spaces before dot
|
|
if (chars[invarPos - 1] !== "." && RESERVED_WORDS.indexOf(invar) < 0) {
|
|
if (!(invar in this.definedVariables)) {
|
|
invar =
|
|
WORD_REPLACEMENT[invar] ||
|
|
(invar in this.variables &&
|
|
this.formatExpression(this.variables[invar])) ||
|
|
"context['" + invar + "']";
|
|
}
|
|
}
|
|
r += invar;
|
|
invar = "";
|
|
}
|
|
else if (invar.length) {
|
|
invar += c;
|
|
continue;
|
|
}
|
|
r += c;
|
|
}
|
|
const result = r.slice(0, -1);
|
|
return result;
|
|
}
|
|
/**
|
|
* Perform string interpolation on the given string. Note that if the whole
|
|
* string is an expression, it simply returns it (formatted and enclosed in
|
|
* parentheses).
|
|
* For instance:
|
|
* 'Hello {{x}}!' -> `Hello ${x}`
|
|
* '{{x ? 'a': 'b'}}' -> (x ? 'a' : 'b')
|
|
*/
|
|
interpolate(s) {
|
|
let matches = s.match(/\{\{.*?\}\}/g);
|
|
if (matches && matches[0].length === s.length) {
|
|
return `(${this.formatExpression(s.slice(2, -2))})`;
|
|
}
|
|
matches = s.match(/\#\{.*?\}/g);
|
|
if (matches && matches[0].length === s.length) {
|
|
return `(${this.formatExpression(s.slice(2, -1))})`;
|
|
}
|
|
let formatter = expr => "${" + this.formatExpression(expr) + "}";
|
|
let r = s
|
|
.replace(/\{\{.*?\}\}/g, s => formatter(s.slice(2, -2)))
|
|
.replace(/\#\{.*?\}/g, s => formatter(s.slice(2, -1)));
|
|
return "`" + r + "`";
|
|
}
|
|
}
|
|
|
|
// If a component does not define explicitely a template
|
|
// key, it needs to find a template with its name (or a parent's). This is
|
|
// qweb dependant, so we need a place to store this information indexed by
|
|
// qweb instances.
|
|
const TEMPLATE_MAP = {};
|
|
//------------------------------------------------------------------------------
|
|
// Widget
|
|
//------------------------------------------------------------------------------
|
|
let nextId = 1;
|
|
class Component {
|
|
//--------------------------------------------------------------------------
|
|
// Lifecycle
|
|
//--------------------------------------------------------------------------
|
|
/**
|
|
* Creates an instance of Component.
|
|
*
|
|
* The root widget of a component tree needs an environment:
|
|
*
|
|
* ```javascript
|
|
* const root = new RootWidget(env, props);
|
|
* ```
|
|
*
|
|
* Every other widget simply needs a reference to its parent:
|
|
*
|
|
* ```javascript
|
|
* const child = new SomeWidget(parent, props);
|
|
* ```
|
|
*
|
|
* Note that most of the time, only the root widget needs to be created by
|
|
* hand. Other widgets should be created automatically by the framework (with
|
|
* the t-widget directive in a template)
|
|
*/
|
|
constructor(parent, props) {
|
|
this.refs = {};
|
|
const defaultProps = this.constructor.defaultProps;
|
|
if (defaultProps) {
|
|
props = this._applyDefaultProps(props, defaultProps);
|
|
}
|
|
if (QWeb.dev) {
|
|
this._validateProps(props || {});
|
|
}
|
|
// is this a good idea?
|
|
// Pro: if props is empty, we can create easily a widget
|
|
// Con: this is not really safe
|
|
// Pro: but creating widget (by a template) is always unsafe anyway
|
|
this.props = props || {};
|
|
let id = nextId++;
|
|
let p = null;
|
|
if (parent instanceof Component) {
|
|
p = parent;
|
|
this.env = parent.env;
|
|
parent.__owl__.children[id] = this;
|
|
}
|
|
else {
|
|
this.env = parent;
|
|
}
|
|
this.__owl__ = {
|
|
id: id,
|
|
vnode: null,
|
|
isMounted: false,
|
|
isDestroyed: false,
|
|
parent: p,
|
|
children: {},
|
|
cmap: {},
|
|
renderId: 1,
|
|
renderPromise: null,
|
|
renderProps: props || null,
|
|
boundHandlers: {},
|
|
mountedHandlers: {}
|
|
};
|
|
}
|
|
/**
|
|
* The `el` is the root element of the widget. Note that it could be null:
|
|
* this is the case if the widget is not mounted yet, or is destroyed.
|
|
*/
|
|
get el() {
|
|
return this.__owl__.vnode ? this.__owl__.vnode.elm : null;
|
|
}
|
|
/**
|
|
* willStart is an asynchronous hook that can be implemented to perform some
|
|
* action before the initial rendering of a component.
|
|
*
|
|
* It will be called exactly once before the initial rendering. It is useful
|
|
* in some cases, for example, to load external assets (such as a JS library)
|
|
* before the widget is rendered.
|
|
*
|
|
* Note that a slow willStart method will slow down the rendering of the user
|
|
* interface. Therefore, some effort should be made to make this method as
|
|
* fast as possible.
|
|
*
|
|
* Note: this method should not be called manually.
|
|
*/
|
|
async willStart() { }
|
|
/**
|
|
* mounted is a hook that is called each time a component is attached to the
|
|
* DOM. This is a good place to add some listeners, or to interact with the
|
|
* DOM, if the component needs to perform some measure for example.
|
|
*
|
|
* Note: this method should not be called manually.
|
|
*
|
|
* @see willUnmount
|
|
*/
|
|
mounted() { }
|
|
/**
|
|
* The willUpdateProps is an asynchronous hook, called just before new props
|
|
* are set. This is useful if the component needs some asynchronous task
|
|
* performed, depending on the props (for example, assuming that the props are
|
|
* some record Id, fetching the record data).
|
|
*
|
|
* This hook is not called during the first render (but willStart is called
|
|
* and performs a similar job).
|
|
*/
|
|
async willUpdateProps(nextProps) { }
|
|
/**
|
|
* The willPatch hook is called just before the DOM patching process starts.
|
|
* It is not called on the initial render. This is useful to get some
|
|
* information which are in the DOM. For example, the current position of the
|
|
* scrollbar
|
|
*
|
|
* The return value of willPatch will be given to the patched function.
|
|
*/
|
|
willPatch() { }
|
|
/**
|
|
* This hook is called whenever a component did actually update its props,
|
|
* state or env.
|
|
*
|
|
* This method is not called on the initial render. It is useful to interact
|
|
* with the DOM (for example, through an external library) whenever the
|
|
* component was updated.
|
|
*
|
|
* Updating the widget state in this hook is possible, but not encouraged.
|
|
* One need to be careful, because updates here will cause rerender, which in
|
|
* turn will cause other calls to updated. So, we need to be particularly
|
|
* careful at avoiding endless cycles.
|
|
*
|
|
* The snapshot parameter is the result of the call to willPatch.
|
|
*/
|
|
patched(snapshot) { }
|
|
/**
|
|
* willUnmount is a hook that is called each time just before a component is
|
|
* unmounted from the DOM. This is a good place to remove some listeners, for
|
|
* example.
|
|
*
|
|
* Note: this method should not be called manually.
|
|
*
|
|
* @see mounted
|
|
*/
|
|
willUnmount() { }
|
|
//--------------------------------------------------------------------------
|
|
// Public
|
|
//--------------------------------------------------------------------------
|
|
/**
|
|
* Mount the component to a target element.
|
|
*
|
|
* This should only be done if the component was created manually. Components
|
|
* created declaratively in templates are managed by the Owl system.
|
|
*/
|
|
async mount(target) {
|
|
const vnode = await this._prepare();
|
|
if (this.__owl__.isDestroyed) {
|
|
// component was destroyed before we get here...
|
|
return;
|
|
}
|
|
this._patch(vnode);
|
|
target.appendChild(this.el);
|
|
if (document.body.contains(target)) {
|
|
this._callMounted();
|
|
}
|
|
}
|
|
unmount() {
|
|
if (this.__owl__.isMounted) {
|
|
this._callWillUnmount();
|
|
this.el.remove();
|
|
}
|
|
}
|
|
async render(force = false, patchQueue) {
|
|
const __owl__ = this.__owl__;
|
|
if (!__owl__.isMounted) {
|
|
return;
|
|
}
|
|
const shouldPatch = !patchQueue;
|
|
if (shouldPatch) {
|
|
patchQueue = [];
|
|
}
|
|
const renderVDom = this._render(force, patchQueue);
|
|
const renderId = __owl__.renderId;
|
|
await renderVDom;
|
|
if (shouldPatch && __owl__.isMounted && renderId === __owl__.renderId) {
|
|
// we only update the vnode and the actual DOM if no other rendering
|
|
// occurred between now and when the render method was initially called.
|
|
const patchLen = patchQueue.length;
|
|
for (let i = 0; i < patchLen; i++) {
|
|
const patch = patchQueue[i];
|
|
patch.push(patch[0].willPatch());
|
|
}
|
|
for (let i = 0; i < patchLen; i++) {
|
|
const patch = patchQueue[i];
|
|
patch[0]._patch(patch[1]);
|
|
}
|
|
for (let i = patchLen - 1; i >= 0; i--) {
|
|
const patch = patchQueue[i];
|
|
patch[0].patched(patch[2]);
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Destroy the component. This operation is quite complex:
|
|
* - it recursively destroy all children
|
|
* - call the willUnmount hooks if necessary
|
|
* - remove the dom node from the dom
|
|
*
|
|
* This should only be called manually if you created the widget. Most widgets
|
|
* will be automatically destroyed.
|
|
*/
|
|
destroy() {
|
|
const __owl__ = this.__owl__;
|
|
if (!__owl__.isDestroyed) {
|
|
const el = this.el;
|
|
this._destroy(__owl__.parent);
|
|
if (el) {
|
|
el.remove();
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* This method is called by the component system whenever its props are
|
|
* updated. If it returns true, then the component will be rendered.
|
|
* Otherwise, it will skip the rendering (also, its props will not be updated)
|
|
*/
|
|
shouldUpdate(nextProps) {
|
|
return true;
|
|
}
|
|
/**
|
|
* This method is the correct way to update the environment of a widget. Doing
|
|
* this will cause a full rerender of the widget and its children, so this is
|
|
* an operation that should not be done frequently.
|
|
*
|
|
* A good usecase for updating the environment would be to update some mostly
|
|
* static config keys, such as a boolean to determine if we are in mobile
|
|
* mode or not.
|
|
*/
|
|
async updateEnv(nextEnv) {
|
|
const __owl__ = this.__owl__;
|
|
if (__owl__.parent && __owl__.parent.env === this.env) {
|
|
this.env = Object.create(this.env);
|
|
}
|
|
Object.assign(this.env, nextEnv);
|
|
if (__owl__.isMounted) {
|
|
await this.render(true);
|
|
}
|
|
}
|
|
/**
|
|
* Sets a key (from the state) to a specific value. This is mostly useful to
|
|
* work around the limitation in observed value with new keys.
|
|
*/
|
|
set(target, key, value) {
|
|
this.__owl__.observer.set(target, key, value);
|
|
}
|
|
/**
|
|
* Emit a custom event of type 'eventType' with the given 'payload' on the
|
|
* component's el, if it exists. However, note that the event will only bubble
|
|
* up to the parent DOM nodes. Thus, it must be called between mounted() and
|
|
* willUnmount().
|
|
*/
|
|
trigger(eventType, payload) {
|
|
if (this.el) {
|
|
const ev = new CustomEvent(eventType, {
|
|
bubbles: true,
|
|
cancelable: true,
|
|
detail: payload
|
|
});
|
|
this.el.dispatchEvent(ev);
|
|
}
|
|
}
|
|
//--------------------------------------------------------------------------
|
|
// Private
|
|
//--------------------------------------------------------------------------
|
|
_destroy(parent) {
|
|
const __owl__ = this.__owl__;
|
|
const isMounted = __owl__.isMounted;
|
|
if (isMounted) {
|
|
this.willUnmount();
|
|
__owl__.isMounted = false;
|
|
}
|
|
const children = __owl__.children;
|
|
for (let key in children) {
|
|
children[key]._destroy(this);
|
|
}
|
|
if (parent) {
|
|
let id = __owl__.id;
|
|
delete parent.__owl__.children[id];
|
|
__owl__.parent = null;
|
|
}
|
|
__owl__.isDestroyed = true;
|
|
delete __owl__.vnode;
|
|
}
|
|
_callMounted() {
|
|
const __owl__ = this.__owl__;
|
|
const children = __owl__.children;
|
|
for (let id in children) {
|
|
const comp = children[id];
|
|
if (!comp.__owl__.isMounted && this.el.contains(comp.el)) {
|
|
comp._callMounted();
|
|
}
|
|
}
|
|
__owl__.isMounted = true;
|
|
const handlers = __owl__.mountedHandlers;
|
|
for (let key in handlers) {
|
|
handlers[key]();
|
|
}
|
|
this.mounted();
|
|
}
|
|
_callWillUnmount() {
|
|
this.willUnmount();
|
|
const __owl__ = this.__owl__;
|
|
__owl__.isMounted = false;
|
|
const children = __owl__.children;
|
|
for (let id in children) {
|
|
const comp = children[id];
|
|
if (comp.__owl__.isMounted) {
|
|
comp._callWillUnmount();
|
|
}
|
|
}
|
|
}
|
|
async _updateProps(nextProps, forceUpdate = false, patchQueue) {
|
|
const shouldUpdate = forceUpdate || this.shouldUpdate(nextProps);
|
|
if (shouldUpdate) {
|
|
const defaultProps = this.constructor.defaultProps;
|
|
if (defaultProps) {
|
|
nextProps = this._applyDefaultProps(nextProps, defaultProps);
|
|
}
|
|
if (QWeb.dev) {
|
|
this._validateProps(nextProps);
|
|
}
|
|
await this.willUpdateProps(nextProps);
|
|
this.props = nextProps;
|
|
await this.render(forceUpdate, patchQueue);
|
|
}
|
|
}
|
|
_patch(vnode) {
|
|
const __owl__ = this.__owl__;
|
|
__owl__.renderPromise = null;
|
|
const target = __owl__.vnode || document.createElement(vnode.sel);
|
|
__owl__.vnode = patch(target, vnode);
|
|
}
|
|
_prepare() {
|
|
const __owl__ = this.__owl__;
|
|
__owl__.renderProps = this.props;
|
|
__owl__.renderPromise = this._prepareAndRender();
|
|
return __owl__.renderPromise;
|
|
}
|
|
async _prepareAndRender() {
|
|
await this.willStart();
|
|
const __owl__ = this.__owl__;
|
|
if (__owl__.isDestroyed) {
|
|
return Promise.resolve(h("div"));
|
|
}
|
|
const qweb = this.env.qweb;
|
|
if (!this.template) {
|
|
let tmap = TEMPLATE_MAP[qweb.id];
|
|
if (!tmap) {
|
|
tmap = {};
|
|
TEMPLATE_MAP[qweb.id] = tmap;
|
|
}
|
|
let p = this.constructor;
|
|
let name = p.name;
|
|
let template = tmap[name];
|
|
if (template) {
|
|
this.template = template;
|
|
}
|
|
else {
|
|
while ((template = p.name) &&
|
|
!(template in qweb.templates) &&
|
|
p !== Component) {
|
|
p = p.__proto__;
|
|
}
|
|
if (p === Component) {
|
|
this.template = "default";
|
|
}
|
|
else {
|
|
tmap[name] = template;
|
|
this.template = template;
|
|
}
|
|
}
|
|
}
|
|
__owl__.render = qweb.render.bind(qweb, this.template);
|
|
this._observeState();
|
|
return this._render();
|
|
}
|
|
async _render(force = false, patchQueue = []) {
|
|
const __owl__ = this.__owl__;
|
|
__owl__.renderId++;
|
|
const promises = [];
|
|
const patch = [this];
|
|
if (__owl__.isMounted) {
|
|
patchQueue.push(patch);
|
|
}
|
|
if (__owl__.observer) {
|
|
__owl__.observer.allowMutations = false;
|
|
}
|
|
let vnode = __owl__.render(this, {
|
|
promises,
|
|
handlers: __owl__.boundHandlers,
|
|
mountedHandlers: __owl__.mountedHandlers,
|
|
forceUpdate: force,
|
|
patchQueue
|
|
});
|
|
patch.push(vnode);
|
|
if (__owl__.observer) {
|
|
__owl__.observer.allowMutations = true;
|
|
}
|
|
// this part is critical for the patching process to be done correctly. The
|
|
// tricky part is that a child widget can be rerendered on its own, which
|
|
// will update its own vnode representation without the knowledge of the
|
|
// parent widget. With this, we make sure that the parent widget will be
|
|
// able to patch itself properly after
|
|
vnode.key = __owl__.id;
|
|
__owl__.renderProps = this.props;
|
|
__owl__.renderPromise = Promise.all(promises).then(() => vnode);
|
|
return __owl__.renderPromise;
|
|
}
|
|
/**
|
|
* Only called by qweb t-widget directive
|
|
*/
|
|
_mount(vnode, elm) {
|
|
const __owl__ = this.__owl__;
|
|
__owl__.vnode = patch(elm, vnode);
|
|
if (__owl__.parent.__owl__.isMounted && !__owl__.isMounted) {
|
|
this._callMounted();
|
|
}
|
|
return __owl__.vnode;
|
|
}
|
|
/**
|
|
* Only called by qweb t-widget directive (when t-keepalive is set)
|
|
*/
|
|
_remount() {
|
|
const __owl__ = this.__owl__;
|
|
if (!__owl__.isMounted) {
|
|
__owl__.isMounted = true;
|
|
this.mounted();
|
|
}
|
|
}
|
|
_observeState() {
|
|
if (this.state) {
|
|
const __owl__ = this.__owl__;
|
|
__owl__.observer = new Observer();
|
|
__owl__.observer.observe(this.state);
|
|
__owl__.observer.notifyCB = this.render.bind(this);
|
|
}
|
|
}
|
|
/**
|
|
* Apply default props (only top level).
|
|
*
|
|
* Note that this method does not modify in place the props, it returns a new
|
|
* prop object
|
|
*/
|
|
_applyDefaultProps(props, defaultProps) {
|
|
props = props ? Object.create(props) : {};
|
|
for (let propName in defaultProps) {
|
|
if (props[propName] === undefined) {
|
|
props[propName] = defaultProps[propName];
|
|
}
|
|
}
|
|
return props;
|
|
}
|
|
/**
|
|
* Validate the component props (or next props) against the (static) props
|
|
* description. This is potentially an expensive operation: it may needs to
|
|
* visit recursively the props and all the children to check if they are valid.
|
|
* This is why it is only done in 'dev' mode.
|
|
*/
|
|
_validateProps(props) {
|
|
const propsDef = this.constructor.props;
|
|
if (propsDef instanceof Array) {
|
|
// list of strings (prop names)
|
|
for (let i = 0, l = propsDef.length; i < l; i++) {
|
|
if (!(propsDef[i] in props)) {
|
|
throw new Error(`Missing props '${propsDef[i]}' (widget '${this.constructor.name}')`);
|
|
}
|
|
}
|
|
}
|
|
else if (propsDef) {
|
|
// propsDef is an object now
|
|
for (let propName in propsDef) {
|
|
if (!(propName in props)) {
|
|
if (propsDef[propName] && !propsDef[propName].optional) {
|
|
throw new Error(`Missing props '${propName}' (widget '${this.constructor.name}')`);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
let isValid = isValidProp(props[propName], propsDef[propName]);
|
|
if (!isValid) {
|
|
throw new Error(`Props '${propName}' of invalid type in widget '${this.constructor.name}'`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
// Prop validation helper
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
* Check if an invidual prop value matches its (static) prop definition
|
|
*/
|
|
function isValidProp(prop, propDef) {
|
|
if (typeof propDef === "function") {
|
|
// Check if a value is constructed by some Constructor. Note that there is a
|
|
// slight abuse of language: we want to consider primitive values as well.
|
|
//
|
|
// So, even though 1 is not an instance of Number, we want to consider that
|
|
// it is valid.
|
|
if (typeof prop === "object") {
|
|
return prop instanceof propDef;
|
|
}
|
|
return typeof prop === propDef.name.toLowerCase();
|
|
}
|
|
else if (propDef instanceof Array) {
|
|
// If this code is executed, this means that we want to check if a prop
|
|
// matches at least one of its descriptor.
|
|
let result = false;
|
|
for (let i = 0, iLen = propDef.length; i < iLen; i++) {
|
|
result = result || isValidProp(prop, propDef[i]);
|
|
}
|
|
return result;
|
|
}
|
|
// propsDef is an object
|
|
let result = isValidProp(prop, propDef.type);
|
|
if (propDef.type === Array) {
|
|
for (let i = 0, iLen = prop.length; i < iLen; i++) {
|
|
result = result && isValidProp(prop[i], propDef.element);
|
|
}
|
|
}
|
|
if (propDef.type === Object) {
|
|
const shape = propDef.shape;
|
|
for (let key in shape) {
|
|
result = result && isValidProp(prop[key], shape[key]);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* We define here a simple event bus: it can
|
|
* - emit events
|
|
* - add/remove listeners.
|
|
*
|
|
* This is a useful pattern of communication in many cases. For OWL, each
|
|
* components and stores are event buses.
|
|
*/
|
|
//------------------------------------------------------------------------------
|
|
// EventBus
|
|
//------------------------------------------------------------------------------
|
|
class EventBus {
|
|
constructor() {
|
|
this.subscriptions = {};
|
|
}
|
|
/**
|
|
* Add a listener for the 'eventType' events.
|
|
*
|
|
* Note that the 'owner' of this event can be anything, but will more likely
|
|
* be a widget or a class. The idea is that the callback will be called with
|
|
* the proper owner bound.
|
|
*
|
|
* Also, the owner should be kind of unique. This will be used to remove the
|
|
* listener.
|
|
*/
|
|
on(eventType, owner, callback) {
|
|
if (!callback) {
|
|
throw new Error("Missing callback");
|
|
}
|
|
if (!this.subscriptions[eventType]) {
|
|
this.subscriptions[eventType] = [];
|
|
}
|
|
this.subscriptions[eventType].push({
|
|
owner,
|
|
callback
|
|
});
|
|
}
|
|
/**
|
|
* Remove a listener
|
|
*/
|
|
off(eventType, owner) {
|
|
const subs = this.subscriptions[eventType];
|
|
if (subs) {
|
|
this.subscriptions[eventType] = subs.filter(s => s.owner !== owner);
|
|
}
|
|
}
|
|
/**
|
|
* Emit an event of type 'eventType'. Any extra arguments will be passed to
|
|
* the listeners callback.
|
|
*/
|
|
trigger(eventType, ...args) {
|
|
const subs = this.subscriptions[eventType] || [];
|
|
for (let i = 0, iLen = subs.length; i < iLen; i++) {
|
|
const sub = subs[i];
|
|
sub.callback.call(sub.owner, ...args);
|
|
}
|
|
}
|
|
/**
|
|
* Remove all subscriptions.
|
|
*/
|
|
clear() {
|
|
this.subscriptions = {};
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Owl QWeb Directives
|
|
*
|
|
* This file contains the implementation of most standard QWeb directives:
|
|
* - t-esc
|
|
* - t-raw
|
|
* - t-set/t-value
|
|
* - t-if/t-elif/t-else
|
|
* - t-call
|
|
* - t-foreach/t-as
|
|
* - t-debug
|
|
* - t-log
|
|
*/
|
|
//------------------------------------------------------------------------------
|
|
// t-esc and t-raw
|
|
//------------------------------------------------------------------------------
|
|
UTILS.getFragment = function (str) {
|
|
const temp = document.createElement("template");
|
|
temp.innerHTML = str;
|
|
return temp.content;
|
|
};
|
|
function compileValueNode(value, node, qweb, ctx) {
|
|
if (value === "0" && ctx.caller) {
|
|
qweb._compileNode(ctx.caller, ctx);
|
|
return;
|
|
}
|
|
if (typeof value === "string") {
|
|
let exprID = value;
|
|
if (!(value in ctx.definedVariables)) {
|
|
exprID = `_${ctx.generateID()}`;
|
|
ctx.addLine(`var ${exprID} = ${ctx.formatExpression(value)};`);
|
|
}
|
|
ctx.addIf(`${exprID} || ${exprID} === 0`);
|
|
if (!ctx.parentNode) {
|
|
throw new Error("Should not have a text node without a parent");
|
|
}
|
|
if (ctx.escaping) {
|
|
ctx.addLine(`c${ctx.parentNode}.push({text: ${exprID}});`);
|
|
}
|
|
else {
|
|
let fragID = ctx.generateID();
|
|
ctx.addLine(`var frag${fragID} = this.utils.getFragment(${exprID})`);
|
|
let tempNodeID = ctx.generateID();
|
|
ctx.addLine(`var p${tempNodeID} = {hook: {`);
|
|
ctx.addLine(` insert: n => n.elm.parentNode.replaceChild(frag${fragID}, n.elm),`);
|
|
ctx.addLine(`}};`);
|
|
ctx.addLine(`var vn${tempNodeID} = h('div', p${tempNodeID})`);
|
|
ctx.addLine(`c${ctx.parentNode}.push(vn${tempNodeID});`);
|
|
}
|
|
if (node.childNodes.length) {
|
|
ctx.addElse();
|
|
qweb._compileChildren(node, ctx);
|
|
}
|
|
ctx.closeIf();
|
|
return;
|
|
}
|
|
if (value instanceof NodeList) {
|
|
for (let node of Array.from(value)) {
|
|
qweb._compileNode(node, ctx);
|
|
}
|
|
}
|
|
}
|
|
QWeb.addDirective({
|
|
name: "esc",
|
|
priority: 70,
|
|
atNodeEncounter({ node, qweb, ctx }) {
|
|
if (node.nodeName !== "t") {
|
|
let nodeID = qweb._compileGenericNode(node, ctx);
|
|
ctx = ctx.withParent(nodeID);
|
|
}
|
|
let value = ctx.getValue(node.getAttribute("t-esc"));
|
|
compileValueNode(value, node, qweb, ctx.subContext("escaping", true));
|
|
return true;
|
|
}
|
|
});
|
|
QWeb.addDirective({
|
|
name: "raw",
|
|
priority: 80,
|
|
atNodeEncounter({ node, qweb, ctx }) {
|
|
if (node.nodeName !== "t") {
|
|
let nodeID = qweb._compileGenericNode(node, ctx);
|
|
ctx = ctx.withParent(nodeID);
|
|
}
|
|
let value = ctx.getValue(node.getAttribute("t-raw"));
|
|
compileValueNode(value, node, qweb, ctx);
|
|
return true;
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-set
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "set",
|
|
extraNames: ["value"],
|
|
priority: 60,
|
|
atNodeEncounter({ node, ctx }) {
|
|
const variable = node.getAttribute("t-set");
|
|
let value = node.getAttribute("t-value");
|
|
if (value) {
|
|
const formattedValue = ctx.formatExpression(value);
|
|
if (ctx.variables.hasOwnProperty(variable)) {
|
|
ctx.addLine(`${ctx.variables[variable]} = ${formattedValue}`);
|
|
}
|
|
else {
|
|
const varName = `_${ctx.generateID()}`;
|
|
ctx.addLine(`var ${varName} = ${formattedValue};`);
|
|
ctx.definedVariables[varName] = formattedValue;
|
|
ctx.variables[variable] = varName;
|
|
}
|
|
}
|
|
else {
|
|
ctx.variables[variable] = node.childNodes;
|
|
}
|
|
return true;
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-if, t-elif, t-else
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "if",
|
|
priority: 20,
|
|
atNodeEncounter({ node, ctx }) {
|
|
let cond = ctx.getValue(node.getAttribute("t-if"));
|
|
ctx.addIf(`${ctx.formatExpression(cond)}`);
|
|
return false;
|
|
},
|
|
finalize({ ctx }) {
|
|
ctx.closeIf();
|
|
}
|
|
});
|
|
QWeb.addDirective({
|
|
name: "elif",
|
|
priority: 30,
|
|
atNodeEncounter({ node, ctx }) {
|
|
let cond = ctx.getValue(node.getAttribute("t-elif"));
|
|
ctx.addLine(`else if (${ctx.formatExpression(cond)}) {`);
|
|
ctx.indent();
|
|
return false;
|
|
},
|
|
finalize({ ctx }) {
|
|
ctx.closeIf();
|
|
}
|
|
});
|
|
QWeb.addDirective({
|
|
name: "else",
|
|
priority: 40,
|
|
atNodeEncounter({ ctx }) {
|
|
ctx.addLine(`else {`);
|
|
ctx.indent();
|
|
return false;
|
|
},
|
|
finalize({ ctx }) {
|
|
ctx.closeIf();
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-call
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "call",
|
|
priority: 50,
|
|
atNodeEncounter({ node, qweb, ctx }) {
|
|
if (node.nodeName !== "t") {
|
|
throw new Error("Invalid tag for t-call directive (should be 't')");
|
|
}
|
|
const subTemplate = node.getAttribute("t-call");
|
|
const nodeTemplate = qweb.templates[subTemplate];
|
|
if (!nodeTemplate) {
|
|
throw new Error(`Cannot find template "${subTemplate}" (t-call)`);
|
|
}
|
|
const nodeCopy = node.cloneNode(true);
|
|
nodeCopy.removeAttribute("t-call");
|
|
// extract variables from nodecopy
|
|
const tempCtx = new Context();
|
|
tempCtx.nextID = ctx.rootContext.nextID;
|
|
qweb._compileNode(nodeCopy, tempCtx);
|
|
const vars = Object.assign({}, ctx.variables, tempCtx.variables);
|
|
var definedVariables = Object.assign({}, ctx.definedVariables, tempCtx.definedVariables);
|
|
ctx.rootContext.nextID = tempCtx.nextID;
|
|
// open new scope, if necessary
|
|
const hasNewVariables = Object.keys(definedVariables).length > 0;
|
|
if (hasNewVariables) {
|
|
ctx.addLine("{");
|
|
ctx.indent();
|
|
}
|
|
// add new variables, if any
|
|
for (let key in definedVariables) {
|
|
ctx.addLine(`let ${key} = ${definedVariables[key]}`);
|
|
}
|
|
// compile sub template
|
|
const subCtx = ctx
|
|
.subContext("caller", nodeCopy)
|
|
.subContext("variables", Object.create(vars))
|
|
.subContext("definedVariables", Object.create(definedVariables));
|
|
qweb._compileNode(nodeTemplate.elem, subCtx);
|
|
// close new scope
|
|
if (hasNewVariables) {
|
|
ctx.dedent();
|
|
ctx.addLine("}");
|
|
}
|
|
return true;
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-foreach
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "foreach",
|
|
extraNames: ["as"],
|
|
priority: 10,
|
|
atNodeEncounter({ node, qweb, ctx }) {
|
|
ctx.rootContext.shouldProtectContext = true;
|
|
ctx = ctx.subContext("inLoop", true);
|
|
const elems = node.getAttribute("t-foreach");
|
|
const name = node.getAttribute("t-as");
|
|
let arrayID = ctx.generateID();
|
|
ctx.addLine(`var _${arrayID} = ${ctx.formatExpression(elems)};`);
|
|
ctx.addLine(`if (!_${arrayID}) { throw new Error('QWeb error: Invalid loop expression')}`);
|
|
ctx.addLine(`if (typeof _${arrayID} === 'number') { _${arrayID} = Array.from(Array(_${arrayID}).keys())}`);
|
|
let keysID = ctx.generateID();
|
|
ctx.addLine(`var _${keysID} = _${arrayID} instanceof Array ? _${arrayID} : Object.keys(_${arrayID});`);
|
|
ctx.addLine(`var _length${keysID} = _${keysID}.length;`);
|
|
let valuesID = ctx.generateID();
|
|
ctx.addLine(`var _${valuesID} = _${arrayID} instanceof Array ? _${arrayID} : Object.values(_${arrayID});`);
|
|
ctx.addLine(`for (let i = 0; i < _length${keysID}; i++) {`);
|
|
ctx.indent();
|
|
ctx.addLine(`context.${name}_first = i === 0;`);
|
|
ctx.addLine(`context.${name}_last = i === _length${keysID} - 1;`);
|
|
ctx.addLine(`context.${name}_parity = i % 2 === 0 ? 'even' : 'odd';`);
|
|
ctx.addLine(`context.${name}_index = i;`);
|
|
ctx.addLine(`context.${name} = _${keysID}[i];`);
|
|
ctx.addLine(`context.${name}_value = _${valuesID}[i];`);
|
|
const nodeCopy = node.cloneNode(true);
|
|
let shouldWarn = nodeCopy.tagName !== "t" && !nodeCopy.hasAttribute("t-key");
|
|
if (!shouldWarn && node.tagName === "t") {
|
|
if (node.hasAttribute("t-widget") && !node.hasAttribute("t-key")) {
|
|
shouldWarn = true;
|
|
}
|
|
if (!shouldWarn &&
|
|
node.children.length === 1 &&
|
|
node.children[0].tagName !== "t" &&
|
|
!node.children[0].hasAttribute("t-key")) {
|
|
shouldWarn = true;
|
|
}
|
|
}
|
|
if (shouldWarn) {
|
|
console.warn(`Directive t-foreach should always be used with a t-key! (in template: '${ctx.templateName}')`);
|
|
}
|
|
nodeCopy.removeAttribute("t-foreach");
|
|
qweb._compileNode(nodeCopy, ctx);
|
|
ctx.dedent();
|
|
ctx.addLine("}");
|
|
return true;
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-debug
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "debug",
|
|
priority: 99,
|
|
atNodeEncounter({ ctx }) {
|
|
ctx.addLine("debugger;");
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-log
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "log",
|
|
priority: 99,
|
|
atNodeEncounter({ ctx, value }) {
|
|
const expr = ctx.formatExpression(value);
|
|
ctx.addLine(`console.log(${expr})`);
|
|
}
|
|
});
|
|
|
|
/**
|
|
* Owl QWeb Extensions
|
|
*
|
|
* This file contains the implementation of non standard QWeb directives, added
|
|
* by Owl and that will only work on Owl projects:
|
|
*
|
|
* - t-on
|
|
* - t-ref
|
|
* - t-transition
|
|
* - t-widget/t-keepalive
|
|
* - t-mounted
|
|
*/
|
|
//------------------------------------------------------------------------------
|
|
// t-on
|
|
//------------------------------------------------------------------------------
|
|
// these are pieces of code that will be injected into the event handler if
|
|
// modifiers are specified
|
|
const MODS_CODE = {
|
|
prevent: "e.preventDefault();",
|
|
self: "if (e.target !== this.elm) {return}",
|
|
stop: "e.stopPropagation();"
|
|
};
|
|
QWeb.addDirective({
|
|
name: "on",
|
|
priority: 90,
|
|
atNodeCreation({ ctx, fullName, value, nodeID }) {
|
|
ctx.rootContext.shouldDefineOwner = true;
|
|
const [eventName, ...mods] = fullName.slice(5).split(".");
|
|
if (!eventName) {
|
|
throw new Error("Missing event name with t-on directive");
|
|
}
|
|
let extraArgs;
|
|
let handlerName = value.replace(/\(.*\)/, function (args) {
|
|
extraArgs = args.slice(1, -1);
|
|
return "";
|
|
});
|
|
ctx.addIf(`!context['${handlerName}']`);
|
|
ctx.addLine(`throw new Error('Missing handler \\'' + '${handlerName}' + \`\\' when evaluating template '${ctx.templateName.replace(/`/g, "'")}'\`)`);
|
|
ctx.closeIf();
|
|
let params = extraArgs
|
|
? `owner, ${ctx.formatExpression(extraArgs)}`
|
|
: "owner";
|
|
let handler;
|
|
if (mods.length > 0) {
|
|
handler = `function (e) {`;
|
|
handler += mods
|
|
.map(function (mod) {
|
|
return MODS_CODE[mod];
|
|
})
|
|
.join("");
|
|
handler += `context['${handlerName}'].call(${params}, e);}`;
|
|
}
|
|
else {
|
|
handler = `context['${handlerName}'].bind(${params})`;
|
|
}
|
|
if (extraArgs) {
|
|
ctx.addLine(`p${nodeID}.on['${eventName}'] = ${handler};`);
|
|
}
|
|
else {
|
|
ctx.addLine(`extra.handlers['${eventName}' + ${nodeID}] = extra.handlers['${eventName}' + ${nodeID}] || ${handler};`);
|
|
ctx.addLine(`p${nodeID}.on['${eventName}'] = extra.handlers['${eventName}' + ${nodeID}];`);
|
|
}
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-ref
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "ref",
|
|
priority: 95,
|
|
atNodeCreation({ ctx, value, addNodeHook }) {
|
|
const refKey = `ref${ctx.generateID()}`;
|
|
ctx.addLine(`const ${refKey} = ${ctx.interpolate(value)};`);
|
|
addNodeHook("create", `context.refs[${refKey}] = n.elm;`);
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-transition
|
|
//------------------------------------------------------------------------------
|
|
UTILS.nextFrame = function (cb) {
|
|
requestAnimationFrame(() => requestAnimationFrame(cb));
|
|
};
|
|
UTILS.transitionInsert = function (elm, name) {
|
|
elm.classList.add(name + "-enter");
|
|
elm.classList.add(name + "-enter-active");
|
|
const finalize = () => {
|
|
elm.classList.remove(name + "-enter-active");
|
|
elm.classList.remove(name + "-enter-to");
|
|
};
|
|
this.nextFrame(() => {
|
|
elm.classList.remove(name + "-enter");
|
|
elm.classList.add(name + "-enter-to");
|
|
whenTransitionEnd(elm, finalize);
|
|
});
|
|
};
|
|
UTILS.transitionRemove = function (elm, name, rm) {
|
|
elm.classList.add(name + "-leave");
|
|
elm.classList.add(name + "-leave-active");
|
|
const finalize = () => {
|
|
elm.classList.remove(name + "-leave-active");
|
|
elm.classList.remove(name + "-leave-to");
|
|
rm();
|
|
};
|
|
this.nextFrame(() => {
|
|
elm.classList.remove(name + "-leave");
|
|
elm.classList.add(name + "-leave-to");
|
|
whenTransitionEnd(elm, finalize);
|
|
});
|
|
};
|
|
function getTimeout(delays, durations) {
|
|
/* istanbul ignore next */
|
|
while (delays.length < durations.length) {
|
|
delays = delays.concat(delays);
|
|
}
|
|
return Math.max.apply(null, durations.map((d, i) => {
|
|
return toMs(d) + toMs(delays[i]);
|
|
}));
|
|
}
|
|
// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
|
|
// in a locale-dependent way, using a comma instead of a dot.
|
|
// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
|
|
// as a floor function) causing unexpected behaviors
|
|
function toMs(s) {
|
|
return Number(s.slice(0, -1).replace(",", ".")) * 1000;
|
|
}
|
|
function whenTransitionEnd(elm, cb) {
|
|
const styles = window.getComputedStyle(elm);
|
|
const delays = (styles.transitionDelay || "").split(", ");
|
|
const durations = (styles.transitionDuration || "").split(", ");
|
|
const timeout = getTimeout(delays, durations);
|
|
if (timeout > 0) {
|
|
elm.addEventListener("transitionend", cb, { once: true });
|
|
}
|
|
else {
|
|
cb();
|
|
}
|
|
}
|
|
QWeb.addDirective({
|
|
name: "transition",
|
|
priority: 96,
|
|
atNodeCreation({ value, addNodeHook }) {
|
|
let name = value;
|
|
const hooks = {
|
|
insert: `this.utils.transitionInsert(vn.elm, '${name}');`,
|
|
remove: `this.utils.transitionRemove(vn.elm, '${name}', rm);`
|
|
};
|
|
for (let hookName in hooks) {
|
|
addNodeHook(hookName, hooks[hookName]);
|
|
}
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-widget
|
|
//------------------------------------------------------------------------------
|
|
const T_WIDGET_MODS_CODE = Object.assign({}, MODS_CODE, {
|
|
self: "if (e.target !== vn.elm) {return}"
|
|
});
|
|
/**
|
|
* The t-widget directive is certainly a complicated and hard to maintain piece
|
|
* of code. To help you, fellow developer, if you have to maintain it, I offer
|
|
* you this advice: Good luck...
|
|
*
|
|
* Since it is not 'direct' code, but rather code that generates other code, it
|
|
* is not easy to understand. To help you, here is a detailed and commented
|
|
* explanation of the code generated by the t-widget directive for the following
|
|
* situation:
|
|
* ```xml
|
|
* <t t-widget="child"
|
|
* t-key="'somestring'"
|
|
* flag="state.flag"
|
|
* t-transition="fade"/>
|
|
* ```
|
|
*
|
|
* ```js
|
|
* // we assign utils on top of the function because it will be useful for
|
|
* // each widgets
|
|
* let utils = this.utils;
|
|
*
|
|
* // this is the virtual node representing the parent div
|
|
* let c1 = [], p1 = { key: 1 };
|
|
* var vn1 = h("div", p1, c1);
|
|
*
|
|
* // t-widget directive: we start by evaluating the expression given by t-key:
|
|
* let key5 = "somestring";
|
|
*
|
|
* // We keep the index of the position of the widget in the closure. We push
|
|
* // null to reserve the slot, and will replace it later by the widget vnode,
|
|
* // when it will be ready (do not forget that preparing/rendering a widget is
|
|
* // asynchronous)
|
|
* let _2_index = c1.length;
|
|
* c1.push(null);
|
|
*
|
|
* // def3 is the promise that will contain later either the new widget
|
|
* // creation, or the props update...
|
|
* let def3;
|
|
*
|
|
* // this is kind of tricky: we need here to find if the widget was already
|
|
* // created by a previous rendering. This is done by checking the internal
|
|
* // `cmap` (children map) of the parent widget: it maps keys to widget ids,
|
|
* // and, then, if there is an id, we look into the children list to get the
|
|
* // instance
|
|
* let w4 =
|
|
* key5 in context.__owl__.cmap
|
|
* ? context.__owl__.children[context.__owl__.cmap[key5]]
|
|
* : false;
|
|
*
|
|
* // we evaluate here the props given to the component. It is done here to be
|
|
* // able to easily reference it later, and also, it might be an expensive
|
|
* // computation, so it is certainly better to do it only once
|
|
* let props4 = { flag: context["state"].flag };
|
|
*
|
|
* // If we have a widget, currently rendering, but not ready yet, we do not want
|
|
* // to wait for it to be ready if we can avoid it
|
|
* if (w4 && w4.__owl__.renderPromise && !w4.__owl__.vnode) {
|
|
* // we check if the props are the same. In that case, we can simply reuse
|
|
* // the previous rendering and skip all useless work
|
|
* if (utils.shallowEqual(props4, w4.__owl__.renderProps)) {
|
|
* def3 = w4.__owl__.renderPromise;
|
|
* } else {
|
|
* // if the props are not the same, we destroy the widget and starts anew.
|
|
* // this will be faster than waiting for its rendering, then updating it
|
|
* w4.destroy();
|
|
* w4 = false;
|
|
* }
|
|
* }
|
|
*
|
|
* if (!w4) {
|
|
* // in this situation, we need to create a new widget. First step is
|
|
* // to get a reference to the class, then create an instance with
|
|
* // current context as parent, and the props.
|
|
* let W4 = context.widgets && context.widgets[widgetKey4] || QWeb.widgets[widgetKey4];
|
|
|
|
* if (!W4) {
|
|
* throw new Error("Cannot find the definition of widget 'child'");
|
|
* }
|
|
* w4 = new W4(owner, props4);
|
|
*
|
|
* // Whenever we rerender the parent widget, we need to be sure that we
|
|
* // are able to find the widget instance. To do that, we register it to
|
|
* // the parent cmap (children map). Note that the 'template' key is
|
|
* // used here, since this is what identify the widget from the template
|
|
* // perspective.
|
|
* context.__owl__.cmap[key5] = w4.__owl__.id;
|
|
*
|
|
* // _prepare is called, to basically call willStart, then render the
|
|
* // widget
|
|
* def3 = w4._prepare();
|
|
*
|
|
* def3 = def3.then(vnode => {
|
|
* // we create here a virtual node for the parent (NOT the widget). This
|
|
* // means that the vdom of the parent will be stopped here, and from
|
|
* // the parent's perspective, it simply is a vnode with no children.
|
|
* // However, it shares the same dom element with the component root
|
|
* // vnode.
|
|
* let pvnode = h(vnode.sel, { key: key5 });
|
|
*
|
|
* // we add hooks to the parent vnode so we can interact with the new
|
|
* // widget at the proper time
|
|
* pvnode.data.hook = {
|
|
* insert(vn) {
|
|
* // the _mount method will patch the widget vdom into the elm vn.elm,
|
|
* // then call the mounted hooks. However, suprisingly, the snabbdom
|
|
* // patch method actually replace the elm by a new elm, so we need
|
|
* // to synchronise the pvnode elm with the resulting elm
|
|
* let nvn = w4._mount(vnode, vn.elm);
|
|
* pvnode.elm = nvn.elm;
|
|
* // what follows is only present if there are animations on the widget
|
|
* utils.transitionInsert(vn.elm, "fade");
|
|
* },
|
|
* remove() {
|
|
* // override with empty function to prevent from removing the node
|
|
* // directly. It will be removed when destroy is called anyway, which
|
|
* // delays the removal if there are animations.
|
|
* },
|
|
* destroy() {
|
|
* // if there are animations, we delay the call to destroy on the
|
|
* // widget, if not, we call it directly.
|
|
* let finalize = () => {
|
|
* w4.destroy();
|
|
* };
|
|
* utils.transitionRemove(vn.elm, "fade", finalize);
|
|
* }
|
|
* };
|
|
* // the pvnode is inserted at the correct position in the div's children
|
|
* c1[_2_index] = pvnode;
|
|
*
|
|
* // we keep here a reference to the parent vnode (representing the
|
|
* // widget, so we can reuse it later whenever we update the widget
|
|
* w4.__owl__.pvnode = pvnode;
|
|
* });
|
|
* } else {
|
|
* // this is the 'update' path of the directive.
|
|
* // the call to _updateProps is the actual widget update
|
|
* // Note that we only update the props if we cannot reuse the previous
|
|
* // rendering work (in the case it was rendered with the same props)
|
|
* def3 = def3 || w4._updateProps(props4, extra.forceUpdate, extra.patchQueue);
|
|
* def3 = def3.then(() => {
|
|
* // if widget was destroyed in the meantime, we do nothing (so, this
|
|
* // means that the parent's element children list will have a null in
|
|
* // the widget's position, which will cause the pvnode to be removed
|
|
* // when it is patched.
|
|
* if (w4.__owl__.isDestroyed) {
|
|
* return;
|
|
* }
|
|
* // like above, we register the pvnode to the children list, so it
|
|
* // will not be patched out of the dom.
|
|
* let pvnode = w4.__owl__.pvnode;
|
|
* c1[_2_index] = pvnode;
|
|
* });
|
|
* }
|
|
*
|
|
* // we register the deferred here so the parent can coordinate its patch operation
|
|
* // with all the children.
|
|
* extra.promises.push(def3);
|
|
* return vn1;
|
|
* ```
|
|
*/
|
|
QWeb.addDirective({
|
|
name: "widget",
|
|
extraNames: ["props", "keepalive"],
|
|
priority: 100,
|
|
atNodeEncounter({ ctx, value, node }) {
|
|
ctx.addLine("//WIDGET");
|
|
ctx.rootContext.shouldDefineOwner = true;
|
|
ctx.rootContext.shouldDefineQWeb = true;
|
|
ctx.rootContext.shouldDefineUtils = true;
|
|
let keepAlive = node.getAttribute("t-keepalive") ? true : false;
|
|
// t-on- events and t-transition
|
|
const events = [];
|
|
let transition = "";
|
|
const attributes = node.attributes;
|
|
const props = {};
|
|
for (let i = 0; i < attributes.length; i++) {
|
|
const name = attributes[i].name;
|
|
const value = attributes[i].textContent;
|
|
if (name.startsWith("t-on-")) {
|
|
const [eventName, ...mods] = name.slice(5).split(".");
|
|
let extraArgs;
|
|
let handlerName = value.replace(/\(.*\)/, function (args) {
|
|
extraArgs = args.slice(1, -1);
|
|
return "";
|
|
});
|
|
events.push([eventName, mods, handlerName, extraArgs]);
|
|
}
|
|
else if (name === "t-transition") {
|
|
transition = value;
|
|
}
|
|
else if (!name.startsWith("t-")) {
|
|
if (name !== "class" && name !== "style") {
|
|
// this is a prop!
|
|
props[name] = ctx.formatExpression(value);
|
|
}
|
|
}
|
|
}
|
|
let key = node.getAttribute("t-key");
|
|
if (key) {
|
|
key = ctx.formatExpression(key);
|
|
}
|
|
// computing the props string representing the props object
|
|
let propStr = Object.keys(props)
|
|
.map(k => k + ":" + props[k])
|
|
.join(",");
|
|
let dummyID = ctx.generateID();
|
|
let defID = ctx.generateID();
|
|
let widgetID = ctx.generateID();
|
|
let keyID = key && ctx.generateID();
|
|
if (key) {
|
|
// we bind a variable to the key (could be a complex expression, so we
|
|
// want to evaluate it only once)
|
|
ctx.addLine(`let key${keyID} = ${key};`);
|
|
}
|
|
ctx.addLine(`let _${dummyID}_index = c${ctx.parentNode}.length;`);
|
|
ctx.addLine(`c${ctx.parentNode}.push(null);`);
|
|
ctx.addLine(`let def${defID};`);
|
|
let templateID = key
|
|
? `key${keyID}`
|
|
: ctx.inLoop
|
|
? `String(-${widgetID} - i)`
|
|
: String(widgetID);
|
|
let ref = node.getAttribute("t-ref");
|
|
let refExpr = "";
|
|
let refKey = "";
|
|
if (ref) {
|
|
refKey = `ref${ctx.generateID()}`;
|
|
ctx.addLine(`const ${refKey} = ${ctx.interpolate(ref)};`);
|
|
refExpr = `context.refs[${refKey}] = w${widgetID};`;
|
|
}
|
|
let transitionsInsertCode = "";
|
|
if (transition) {
|
|
transitionsInsertCode = `utils.transitionInsert(vn.elm, '${transition}');`;
|
|
}
|
|
let finalizeWidgetCode = `w${widgetID}.${keepAlive ? "unmount" : "destroy"}();`;
|
|
if (ref) {
|
|
finalizeWidgetCode += `delete context.refs[${refKey}];`; // FIXME: shouldn't we keep ref if keepAlive is true?
|
|
}
|
|
if (transition) {
|
|
finalizeWidgetCode = `let finalize = () => {
|
|
${finalizeWidgetCode}
|
|
};
|
|
utils.transitionRemove(vn.elm, '${transition}', finalize);`;
|
|
}
|
|
let createHook = "";
|
|
let classAttr = node.getAttribute("class");
|
|
let tattClass = node.getAttribute("t-att-class");
|
|
let styleAttr = node.getAttribute("style");
|
|
let tattStyle = node.getAttribute("t-att-style");
|
|
if (tattStyle) {
|
|
const attVar = `_${ctx.generateID()}`;
|
|
ctx.addLine(`const ${attVar} = ${ctx.formatExpression(tattStyle)};`);
|
|
tattStyle = attVar;
|
|
}
|
|
let updateClassCode = "";
|
|
if (classAttr || tattClass || styleAttr || tattStyle || events.length) {
|
|
let classCode = "";
|
|
if (classAttr) {
|
|
classCode =
|
|
classAttr
|
|
.split(" ")
|
|
.map(c => `vn.elm.classList.add('${c}')`)
|
|
.join(";") + ";";
|
|
}
|
|
if (tattClass) {
|
|
const attVar = `_${ctx.generateID()}`;
|
|
ctx.addLine(`const ${attVar} = ${ctx.formatExpression(tattClass)};`);
|
|
classCode = `for (let k in ${attVar}) {
|
|
if (${attVar}[k]) {
|
|
vn.elm.classList.add(k);
|
|
}
|
|
}`;
|
|
updateClassCode = `let cl=w${widgetID}.el.classList;for (let k in ${attVar}) {if (${attVar}[k]) {cl.add(k)} else {cl.remove(k)}}`;
|
|
}
|
|
let eventsCode = events
|
|
.map(function ([eventName, mods, handlerName, extraArgs]) {
|
|
let params = extraArgs
|
|
? `owner, ${ctx.formatExpression(extraArgs)}`
|
|
: "owner";
|
|
let handler;
|
|
if (mods.length > 0) {
|
|
handler = `function (e) {`;
|
|
handler += mods
|
|
.map(function (mod) {
|
|
return T_WIDGET_MODS_CODE[mod];
|
|
})
|
|
.join("");
|
|
handler += `owner['${handlerName}'].call(${params}, e);}`;
|
|
}
|
|
else {
|
|
handler = `owner['${handlerName}'].bind(${params})`;
|
|
}
|
|
return `vn.elm.addEventListener('${eventName}', ${handler});`;
|
|
})
|
|
.join("");
|
|
const styleExpr = tattStyle || (styleAttr ? `'${styleAttr}'` : false);
|
|
const styleCode = styleExpr ? `vn.elm.style = ${styleExpr};` : "";
|
|
createHook = `vnode.data.hook = {create(_, vn){${classCode}${styleCode}${eventsCode}}};`;
|
|
}
|
|
ctx.addLine(`let w${widgetID} = ${templateID} in context.__owl__.cmap ? context.__owl__.children[context.__owl__.cmap[${templateID}]] : false;`);
|
|
ctx.addLine(`let props${widgetID} = {${propStr}};`);
|
|
ctx.addIf(`w${widgetID} && w${widgetID}.__owl__.renderPromise && !w${widgetID}.__owl__.vnode`);
|
|
ctx.addIf(`utils.shallowEqual(props${widgetID}, w${widgetID}.__owl__.renderProps)`);
|
|
ctx.addLine(`def${defID} = w${widgetID}.__owl__.renderPromise;`);
|
|
ctx.addElse();
|
|
ctx.addLine(`w${widgetID}.destroy();`);
|
|
ctx.addLine(`w${widgetID} = false;`);
|
|
ctx.closeIf();
|
|
ctx.closeIf();
|
|
ctx.addIf(`!w${widgetID}`);
|
|
// new widget
|
|
ctx.addLine(`let widgetKey${widgetID} = ${ctx.interpolate(value)};`);
|
|
ctx.addLine(`let W${widgetID} = context.widgets && context.widgets[widgetKey${widgetID}] || QWeb.widgets[widgetKey${widgetID}];`);
|
|
// maybe only do this in dev mode...
|
|
ctx.addLine(`if (!W${widgetID}) {throw new Error('Cannot find the definition of widget "' + widgetKey${widgetID} + '"')}`);
|
|
ctx.addLine(`w${widgetID} = new W${widgetID}(owner, props${widgetID});`);
|
|
ctx.addLine(`context.__owl__.cmap[${templateID}] = w${widgetID}.__owl__.id;`);
|
|
ctx.addLine(`def${defID} = w${widgetID}._prepare();`);
|
|
// hack: specify empty remove hook to prevent the node from being removed from the DOM
|
|
// FIXME: click to re-add widget during remove transition -> leak
|
|
ctx.addLine(`def${defID} = def${defID}.then(vnode=>{${createHook}let pvnode=h(vnode.sel, {key: ${templateID}, hook: {insert(vn) {let nvn=w${widgetID}._mount(vnode, pvnode.elm);pvnode.elm=nvn.elm;${refExpr}${transitionsInsertCode}},remove() {},destroy(vn) {${finalizeWidgetCode}}}});c${ctx.parentNode}[_${dummyID}_index]=pvnode;w${widgetID}.__owl__.pvnode = pvnode;});`);
|
|
ctx.addElse();
|
|
// need to update widget
|
|
ctx.addLine(`def${defID} = def${defID} || w${widgetID}._updateProps(props${widgetID}, extra.forceUpdate, extra.patchQueue);`);
|
|
let keepAliveCode = "";
|
|
if (keepAlive) {
|
|
keepAliveCode = `pvnode.data.hook.insert = vn => {vn.elm.parentNode.replaceChild(w${widgetID}.el,vn.elm);vn.elm=w${widgetID}.el;w${widgetID}._remount();};`;
|
|
}
|
|
ctx.addLine(`def${defID} = def${defID}.then(()=>{if (w${widgetID}.__owl__.isDestroyed) {return};${tattStyle ? `w${widgetID}.el.style=${tattStyle};` : ""}${updateClassCode}let pvnode=w${widgetID}.__owl__.pvnode;${keepAliveCode}c${ctx.parentNode}[_${dummyID}_index]=pvnode;});`);
|
|
ctx.closeIf();
|
|
ctx.addLine(`extra.promises.push(def${defID});`);
|
|
if (node.hasAttribute("t-if") ||
|
|
node.hasAttribute("t-else") ||
|
|
node.hasAttribute("t-elif")) {
|
|
ctx.closeIf();
|
|
}
|
|
return true;
|
|
}
|
|
});
|
|
//------------------------------------------------------------------------------
|
|
// t-mounted
|
|
//------------------------------------------------------------------------------
|
|
QWeb.addDirective({
|
|
name: "mounted",
|
|
priority: 97,
|
|
atNodeCreation({ ctx, fullName, value, nodeID, addNodeHook }) {
|
|
ctx.rootContext.shouldDefineOwner = true;
|
|
const eventName = fullName.slice(5);
|
|
if (!eventName) {
|
|
throw new Error("Missing event name with t-on directive");
|
|
}
|
|
let extraArgs;
|
|
let handler = value.replace(/\(.*\)/, function (args) {
|
|
extraArgs = args.slice(1, -1);
|
|
return "";
|
|
});
|
|
let error = `(function () {throw new Error('Missing handler \\'' + '${handler}' + \`\\' when evaluating template '${ctx.templateName.replace(/`/g, "'")}'\`)})()`;
|
|
if (extraArgs) {
|
|
ctx.addLine(`extra.mountedHandlers[${nodeID}] = (context['${handler}'] || ${error}).bind(owner, ${ctx.formatExpression(extraArgs)});`);
|
|
}
|
|
else {
|
|
ctx.addLine(`extra.mountedHandlers[${nodeID}] = extra.mountedHandlers[${nodeID}] || (context['${handler}'] || ${error}).bind(owner);`);
|
|
}
|
|
addNodeHook("insert", `if (context.__owl__.isMounted) { extra.mountedHandlers[${nodeID}](); }`);
|
|
}
|
|
});
|
|
|
|
class Store extends EventBus {
|
|
constructor(config, options = {}) {
|
|
super();
|
|
this._commitLevel = 0;
|
|
this.history = [];
|
|
this.debug = options.debug || false;
|
|
this.state = config.state || {};
|
|
this.actions = config.actions;
|
|
this.mutations = config.mutations;
|
|
this.env = config.env;
|
|
this.observer = new Observer();
|
|
this.observer.notifyCB = this.trigger.bind(this, "update");
|
|
this.observer.allowMutations = false;
|
|
this.observer.observe(this.state);
|
|
this.getters = {};
|
|
if (this.debug) {
|
|
this.history.push({ state: this.state });
|
|
}
|
|
this.set = this.observer.set.bind(this.observer);
|
|
for (let entry of Object.entries(config.getters || {})) {
|
|
const name = entry[0];
|
|
const func = entry[1];
|
|
this.getters[name] = payload => {
|
|
return func({ state: this.state, getters: this.getters }, payload);
|
|
};
|
|
}
|
|
}
|
|
dispatch(action, payload) {
|
|
if (!this.actions[action]) {
|
|
throw new Error(`[Error] action ${action} is undefined`);
|
|
}
|
|
const result = this.actions[action]({
|
|
commit: this.commit.bind(this),
|
|
dispatch: this.dispatch.bind(this),
|
|
env: this.env,
|
|
state: this.state,
|
|
getters: this.getters
|
|
}, payload);
|
|
if (result instanceof Promise) {
|
|
return new Promise((resolve, reject) => {
|
|
result.then(() => resolve());
|
|
result.catch(reject);
|
|
});
|
|
}
|
|
}
|
|
commit(type, payload) {
|
|
if (!this.mutations[type]) {
|
|
throw new Error(`[Error] mutation ${type} is undefined`);
|
|
}
|
|
this._commitLevel++;
|
|
this.observer.allowMutations = true;
|
|
const res = this.mutations[type].call(null, {
|
|
commit: this.commit.bind(this),
|
|
state: this.state,
|
|
set: this.set,
|
|
getters: this.getters
|
|
}, payload);
|
|
if (this._commitLevel === 1) {
|
|
this.observer.allowMutations = false;
|
|
if (this.debug) {
|
|
this.history.push({
|
|
state: this.state,
|
|
mutation: type,
|
|
payload: payload
|
|
});
|
|
}
|
|
}
|
|
this._commitLevel--;
|
|
return res;
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
// Connect function
|
|
//------------------------------------------------------------------------------
|
|
function revNumber(o) {
|
|
if (o !== null && typeof o === "object" && o.__owl__) {
|
|
return o.__owl__.rev;
|
|
}
|
|
return 0;
|
|
}
|
|
function deepRevNumber(o) {
|
|
if (o !== null && typeof o === "object" && o.__owl__) {
|
|
return o.__owl__.deepRev;
|
|
}
|
|
return 0;
|
|
}
|
|
let nextID$1 = 1;
|
|
function connect(mapStateToProps, options = {}) {
|
|
let hashFunction = options.hashFunction || null;
|
|
if (!hashFunction) {
|
|
let deep = "deep" in options ? options.deep : true;
|
|
let defaultRevFunction = deep ? deepRevNumber : revNumber;
|
|
hashFunction = function ({ storeProps }, options) {
|
|
const { currentStoreProps } = options;
|
|
if ("__owl__" in storeProps) {
|
|
return defaultRevFunction(storeProps);
|
|
}
|
|
let hash = 0;
|
|
for (let key in storeProps) {
|
|
const val = storeProps[key];
|
|
const hashVal = defaultRevFunction(val);
|
|
if (hashVal === 0) {
|
|
if (val !== currentStoreProps[key]) {
|
|
options.didChange = true;
|
|
}
|
|
}
|
|
else {
|
|
hash += hashVal;
|
|
}
|
|
}
|
|
return hash;
|
|
};
|
|
}
|
|
return function (Comp) {
|
|
const Result = class extends Comp {
|
|
constructor(parent, props) {
|
|
const env = parent instanceof Component ? parent.env : parent;
|
|
const ownProps = Object.assign({}, props || {});
|
|
const storeProps = mapStateToProps(env.store.state, ownProps, env.store.getters);
|
|
const mergedProps = Object.assign({}, props || {}, storeProps);
|
|
super(parent, mergedProps);
|
|
this.__owl__.ownProps = ownProps;
|
|
this.__owl__.currentStoreProps = storeProps;
|
|
this.__owl__.storeHash = hashFunction({
|
|
state: env.store.state,
|
|
storeProps: storeProps,
|
|
revNumber,
|
|
deepRevNumber
|
|
}, {
|
|
currentStoreProps: storeProps
|
|
});
|
|
}
|
|
/**
|
|
* We do not use the mounted hook here for a subtle reason: we want the
|
|
* updates to be called for the parents before the children. However,
|
|
* if we use the mounted hook, this will be done in the reverse order.
|
|
*/
|
|
_callMounted() {
|
|
this.env.store.on("update", this, this._checkUpdate);
|
|
super._callMounted();
|
|
}
|
|
willUnmount() {
|
|
this.env.store.off("update", this);
|
|
super.willUnmount();
|
|
}
|
|
_checkUpdate() {
|
|
const ownProps = this.__owl__.ownProps;
|
|
const storeProps = mapStateToProps(this.env.store.state, ownProps, this.env.store.getters);
|
|
const options = {
|
|
currentStoreProps: this.__owl__.currentStoreProps
|
|
};
|
|
const storeHash = hashFunction({
|
|
state: this.env.store.state,
|
|
storeProps: storeProps,
|
|
revNumber,
|
|
deepRevNumber
|
|
}, options);
|
|
let didChange = options.didChange;
|
|
if (storeHash !== this.__owl__.storeHash) {
|
|
didChange = true;
|
|
this.__owl__.storeHash = storeHash;
|
|
}
|
|
if (didChange) {
|
|
this.__owl__.currentStoreProps = storeProps;
|
|
this._updateProps(ownProps, false);
|
|
}
|
|
}
|
|
_updateProps(nextProps, forceUpdate, patchQueue) {
|
|
if (this.__owl__.ownProps !== nextProps) {
|
|
this.__owl__.currentStoreProps = mapStateToProps(this.env.store.state, nextProps, this.env.store.getters);
|
|
}
|
|
this.__owl__.ownProps = nextProps;
|
|
const mergedProps = Object.assign({}, nextProps, this.__owl__.currentStoreProps);
|
|
return super._updateProps(mergedProps, forceUpdate, patchQueue);
|
|
}
|
|
};
|
|
// we assign here a unique name to the resulting anonymous class.
|
|
// this is necessary for Owl to be able to properly deduce templates.
|
|
// Otherwise, all connected components would have the same name, and then
|
|
// each component after the first will necessarily have the same template.
|
|
let name = `ConnectedComponent${nextID$1++}`;
|
|
Object.defineProperty(Result, "name", { value: name });
|
|
return Result;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Owl Utils
|
|
*
|
|
* We have here a small collection of utility functions:
|
|
*
|
|
* - whenReady
|
|
* - loadJS
|
|
* - loadTemplates
|
|
* - escape
|
|
* - debounce
|
|
*/
|
|
function whenReady(fn) {
|
|
if (document.readyState === "complete") {
|
|
fn();
|
|
}
|
|
else {
|
|
document.addEventListener("DOMContentLoaded", fn, false);
|
|
}
|
|
}
|
|
const loadedScripts = {};
|
|
function loadJS(url) {
|
|
if (url in loadedScripts) {
|
|
return loadedScripts[url];
|
|
}
|
|
const promise = new Promise(function (resolve, reject) {
|
|
const script = document.createElement("script");
|
|
script.type = "text/javascript";
|
|
script.src = url;
|
|
script.onload = function () {
|
|
resolve();
|
|
};
|
|
script.onerror = function () {
|
|
reject(`Error loading file '${url}'`);
|
|
};
|
|
const head = document.head || document.getElementsByTagName("head")[0];
|
|
head.appendChild(script);
|
|
});
|
|
loadedScripts[url] = promise;
|
|
return promise;
|
|
}
|
|
async function loadTemplates(url) {
|
|
const result = await fetch(url);
|
|
if (!result.ok) {
|
|
throw new Error("Error while fetching xml templates");
|
|
}
|
|
let templates = await result.text();
|
|
templates = templates.replace(/<!--[\s\S]*?-->/g, "");
|
|
return templates;
|
|
}
|
|
function escape(str) {
|
|
if (str === undefined) {
|
|
return "";
|
|
}
|
|
if (typeof str === "number") {
|
|
return String(str);
|
|
}
|
|
return str
|
|
.replace(/&/g, "&")
|
|
.replace(/</g, "<")
|
|
.replace(/>/g, ">")
|
|
.replace(/"/g, "'")
|
|
.replace(/`/g, "`");
|
|
}
|
|
/**
|
|
* Returns a function, that, as long as it continues to be invoked, will not
|
|
* be triggered. The function will be called after it stops being called for
|
|
* N milliseconds. If `immediate` is passed, trigger the function on the
|
|
* leading edge, instead of the trailing.
|
|
*
|
|
* Inspired by https://davidwalsh.name/javascript-debounce-function
|
|
*/
|
|
function debounce(func, wait, immediate) {
|
|
let timeout;
|
|
return function () {
|
|
const context = this;
|
|
const args = arguments;
|
|
function later() {
|
|
timeout = null;
|
|
if (!immediate) {
|
|
func.apply(context, args);
|
|
}
|
|
}
|
|
const callNow = immediate && !timeout;
|
|
clearTimeout(timeout);
|
|
timeout = setTimeout(later, wait);
|
|
if (callNow) {
|
|
func.apply(context, args);
|
|
}
|
|
};
|
|
}
|
|
|
|
var _utils = /*#__PURE__*/Object.freeze({
|
|
whenReady: whenReady,
|
|
loadJS: loadJS,
|
|
loadTemplates: loadTemplates,
|
|
escape: escape,
|
|
debounce: debounce
|
|
});
|
|
|
|
/**
|
|
* This file is the main file packaged by rollup (see rollup.config.js). From
|
|
* this file, we export all public owl elements.
|
|
*
|
|
* Note that dynamic values, such as a date or a commit hash are added by rollup
|
|
*/
|
|
const __info__ = {};
|
|
Object.defineProperty(__info__, "mode", {
|
|
get() {
|
|
return QWeb.dev ? "dev" : "prod";
|
|
},
|
|
set(mode) {
|
|
QWeb.dev = mode === "dev";
|
|
if (QWeb.dev) {
|
|
const url = `https://github.com/odoo/owl/blob/master/doc/tooling.md#development-mode`;
|
|
console.warn(`Owl is running in 'dev' mode. This is not suitable for production use. See ${url} for more information.`);
|
|
}
|
|
else {
|
|
console.log(`Owl is now running in 'prod' mode.`);
|
|
}
|
|
}
|
|
});
|
|
const utils = _utils;
|
|
|
|
exports.Component = Component;
|
|
exports.EventBus = EventBus;
|
|
exports.Observer = Observer;
|
|
exports.QWeb = QWeb;
|
|
exports.Store = Store;
|
|
exports.__info__ = __info__;
|
|
exports.connect = connect;
|
|
exports.utils = utils;
|
|
|
|
exports.__info__.version = '0.13.0';
|
|
exports.__info__.date = '2019-06-05T08:48:29.138Z';
|
|
exports.__info__.hash = '7d3c374';
|
|
exports.__info__.url = 'https://github.com/odoo/owl';
|
|
|
|
}(this.owl = this.owl || {}));
|