Files
tubestation/devtools/client/inspector/changes/ChangesView.js

110 lines
3.2 KiB
JavaScript

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { createFactory, createElement } = require("devtools/client/shared/vendor/react");
const { Provider } = require("devtools/client/shared/vendor/react-redux");
const ChangesApp = createFactory(require("./components/ChangesApp"));
const {
resetChanges,
trackChange,
} = require("./actions/changes");
class ChangesView {
constructor(inspector, window) {
this.document = window.document;
this.inspector = inspector;
this.store = this.inspector.store;
this.toolbox = this.inspector.toolbox;
this.onAddChange = this.onAddChange.bind(this);
this.onClearChanges = this.onClearChanges.bind(this);
this.onChangesFront = this.onChangesFront.bind(this);
this.destroy = this.destroy.bind(this);
this.init();
}
init() {
const changesApp = ChangesApp({});
// listen to the front for initialization, add listeners
// when it is ready
this._getChangesFront();
// Expose the provider to let inspector.js use it in setupSidebar.
this.provider = createElement(Provider, {
id: "changesview",
key: "changesview",
store: this.store,
}, changesApp);
this.inspector.target.on("will-navigate", this.onClearChanges);
}
_getChangesFront() {
if (this.changesFrontPromise) {
return this.changesFrontPromise;
}
this.changesFrontPromise = new Promise(async resolve => {
const target = this.inspector.target;
const front = await target.getFront("changes");
this.onChangesFront(front);
resolve(front);
});
return this.changesFrontPromise;
}
async onChangesFront(changesFront) {
changesFront.on("add-change", this.onAddChange);
changesFront.on("clear-changes", this.onClearChanges);
try {
// Get all changes collected up to this point by the ChangesActor on the server,
// then push them to the Redux store here on the client.
const changes = await changesFront.allChanges();
changes.forEach(change => {
this.onAddChange(change);
});
} catch (e) {
// The connection to the server may have been cut, for
// example during test
// teardown. Here we just catch the error and silently
// ignore it.
}
}
onAddChange(change) {
// Turn data into a suitable change to send to the store.
this.store.dispatch(trackChange(change));
}
onClearChanges() {
this.store.dispatch(resetChanges());
}
/**
* Destruction function called when the inspector is destroyed.
*/
async destroy() {
this.store.dispatch(resetChanges());
// ensure we finish waiting for the front before destroying.
const changesFront = await this.changesFrontPromise;
changesFront.off("add-change", this.onAddChange);
changesFront.off("clear-changes", this.onClearChanges);
this.document = null;
this.inspector = null;
this.store = null;
this.toolbox = null;
}
}
module.exports = ChangesView;