gecko-dev/browser/devtools/webaudioeditor/includes.js

99 lines
3.6 KiB
JavaScript

/* 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 { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource:///modules/devtools/ViewHelpers.jsm");
Cu.import("resource:///modules/devtools/gDevTools.jsm");
const require = Cu.import("resource://gre/modules/devtools/Loader.jsm", {}).devtools.require;
let { console } = Cu.import("resource://gre/modules/devtools/Console.jsm", {});
let { EventTarget } = require("sdk/event/target");
const { Task } = Cu.import("resource://gre/modules/Task.jsm", {});
const { Class } = require("sdk/core/heritage");
const EventEmitter = require("devtools/toolkit/event-emitter");
const STRINGS_URI = "chrome://browser/locale/devtools/webaudioeditor.properties"
const L10N = new ViewHelpers.L10N(STRINGS_URI);
const Telemetry = require("devtools/shared/telemetry");
const telemetry = new Telemetry();
// Override DOM promises with Promise.jsm helpers
const { defer, all } = Cu.import("resource://gre/modules/Promise.jsm", {}).Promise;
/* Events fired on `window` to indicate state or actions*/
const EVENTS = {
// Fired when the first AudioNode has been created, signifying
// that the AudioContext is being used and should be tracked via the editor.
START_CONTEXT: "WebAudioEditor:StartContext",
// When the devtools theme changes.
THEME_CHANGE: "WebAudioEditor:ThemeChange",
// When the UI is reset from tab navigation.
UI_RESET: "WebAudioEditor:UIReset",
// When a param has been changed via the UI and successfully
// pushed via the actor to the raw audio node.
UI_SET_PARAM: "WebAudioEditor:UISetParam",
// When a node is to be set in the InspectorView.
UI_SELECT_NODE: "WebAudioEditor:UISelectNode",
// When the inspector is finished setting a new node.
UI_INSPECTOR_NODE_SET: "WebAudioEditor:UIInspectorNodeSet",
// When the inspector is finished rendering in or out of view.
UI_INSPECTOR_TOGGLED: "WebAudioEditor:UIInspectorToggled",
// When an audio node is finished loading in the Properties tab.
UI_PROPERTIES_TAB_RENDERED: "WebAudioEditor:UIPropertiesTabRendered",
// When the Audio Context graph finishes rendering.
// Is called with two arguments, first representing number of nodes
// rendered, second being the number of edge connections rendering (not counting
// param edges), followed by the count of the param edges rendered.
UI_GRAPH_RENDERED: "WebAudioEditor:UIGraphRendered"
};
/**
* The current target and the Web Audio Editor front, set by this tool's host.
*/
let gToolbox, gTarget, gFront;
/**
* Convenient way of emitting events from the panel window.
*/
EventEmitter.decorate(this);
/**
* DOM query helper.
*/
function $(selector, target = document) { return target.querySelector(selector); }
function $$(selector, target = document) { return target.querySelectorAll(selector); }
/**
* Takes an iterable collection, and a hash. Return the first
* object in the collection that matches the values in the hash.
* From Backbone.Collection#findWhere
* http://backbonejs.org/#Collection-findWhere
*/
function findWhere (collection, attrs) {
let keys = Object.keys(attrs);
for (let model of collection) {
if (keys.every(key => model[key] === attrs[key])) {
return model;
}
}
return void 0;
}
function mixin (source, ...args) {
args.forEach(obj => Object.keys(obj).forEach(prop => source[prop] = obj[prop]));
return source;
}