The Tor Browser: browser/devtools/webaudioeditor/test/head.js@6474c204b198 (annotated)

browser/devtools/webaudioeditor/test/head.js@6474c204b198 (annotated)

browser/devtools/webaudioeditor/test/head.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 "use strict";
 const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
 let { Services } = Cu.import("resource://gre/modules/Services.jsm", {});
 // Enable logging for all the tests. Both the debugger server and frontend will
 // be affected by this pref.
 let gEnableLogging = Services.prefs.getBoolPref("devtools.debugger.log");
 Services.prefs.setBoolPref("devtools.debugger.log", true);
 let { Task } = Cu.import("resource://gre/modules/Task.jsm", {});
 let { Promise } = Cu.import("resource://gre/modules/Promise.jsm", {});
 let { gDevTools } = Cu.import("resource:///modules/devtools/gDevTools.jsm", {});
 let { devtools } = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
 let { DebuggerServer } = Cu.import("resource://gre/modules/devtools/dbg-server.jsm", {});
 let { WebAudioFront } = devtools.require("devtools/server/actors/webaudio");
 let TargetFactory = devtools.TargetFactory;
 const EXAMPLE_URL = "http://example.com/browser/browser/devtools/webaudioeditor/test/";
 const SIMPLE_CONTEXT_URL = EXAMPLE_URL + "doc_simple-context.html";
 const COMPLEX_CONTEXT_URL = EXAMPLE_URL + "doc_complex-context.html";
 const SIMPLE_NODES_URL = EXAMPLE_URL + "doc_simple-node-creation.html";
 // All tests are asynchronous.
 waitForExplicitFinish();
 let gToolEnabled = Services.prefs.getBoolPref("devtools.webaudioeditor.enabled");
 registerCleanupFunction(() => {
   info("finish() was called, cleaning up...");
   Services.prefs.setBoolPref("devtools.debugger.log", gEnableLogging);
   Services.prefs.setBoolPref("devtools.webaudioeditor.enabled", gToolEnabled);
   Cu.forceGC();
 });
 function addTab(aUrl, aWindow) {
   info("Adding tab: " + aUrl);
   let deferred = Promise.defer();
   let targetWindow = aWindow || window;
   let targetBrowser = targetWindow.gBrowser;
   targetWindow.focus();
   let tab = targetBrowser.selectedTab = targetBrowser.addTab(aUrl);
   let linkedBrowser = tab.linkedBrowser;
   linkedBrowser.addEventListener("load", function onLoad() {
     linkedBrowser.removeEventListener("load", onLoad, true);
     info("Tab added and finished loading: " + aUrl);
     deferred.resolve(tab);
   }, true);
   return deferred.promise;
 }
 function removeTab(aTab, aWindow) {
   info("Removing tab.");
   let deferred = Promise.defer();
   let targetWindow = aWindow || window;
   let targetBrowser = targetWindow.gBrowser;
   let tabContainer = targetBrowser.tabContainer;
   tabContainer.addEventListener("TabClose", function onClose(aEvent) {
     tabContainer.removeEventListener("TabClose", onClose, false);
     info("Tab removed and finished closing.");
     deferred.resolve();
   }, false);
   targetBrowser.removeTab(aTab);
   return deferred.promise;
 }
 function handleError(aError) {
   ok(false, "Got an error: " + aError.message + "\n" + aError.stack);
   finish();
 }
 function once(aTarget, aEventName, aUseCapture = false) {
   info("Waiting for event: '" + aEventName + "' on " + aTarget + ".");
   let deferred = Promise.defer();
   for (let [add, remove] of [
     ["on", "off"], // Use event emitter before DOM events for consistency
     ["addEventListener", "removeEventListener"],
     ["addListener", "removeListener"]
   ]) {
     if ((add in aTarget) && (remove in aTarget)) {
       aTarget[add](aEventName, function onEvent(...aArgs) {
         aTarget[remove](aEventName, onEvent, aUseCapture);
         deferred.resolve(...aArgs);
       }, aUseCapture);
       break;
     }
   }
   return deferred.promise;
 }
 function reload(aTarget, aWaitForTargetEvent = "navigate") {
   aTarget.activeTab.reload();
   return once(aTarget, aWaitForTargetEvent);
 }
 function test () {
   Task.spawn(spawnTest).then(finish, handleError);
 }
 function initBackend(aUrl) {
   info("Initializing a web audio editor front.");
   if (!DebuggerServer.initialized) {
     DebuggerServer.init(() => true);
     DebuggerServer.addBrowserActors();
   }
   return Task.spawn(function*() {
     let tab = yield addTab(aUrl);
     let target = TargetFactory.forTab(tab);
     let debuggee = target.window.wrappedJSObject;
     yield target.makeRemote();
     let front = new WebAudioFront(target.client, target.form);
     return [target, debuggee, front];
   });
 }
 function initWebAudioEditor(aUrl) {
   info("Initializing a web audio editor pane.");
   return Task.spawn(function*() {
     let tab = yield addTab(aUrl);
     let target = TargetFactory.forTab(tab);
     let debuggee = target.window.wrappedJSObject;
     yield target.makeRemote();
     Services.prefs.setBoolPref("devtools.webaudioeditor.enabled", true);
     let toolbox = yield gDevTools.showToolbox(target, "webaudioeditor");
     let panel = toolbox.getCurrentPanel();
     return [target, debuggee, panel];
   });
 }
 function teardown(aPanel) {
   info("Destroying the web audio editor.");
   return Promise.all([
     once(aPanel, "destroyed"),
     removeTab(aPanel.target.tab)
   ]).then(() => {
     let gBrowser = window.gBrowser;
     while (gBrowser.tabs.length > 1) {
       gBrowser.removeCurrentTab();
     }
     gBrowser = null;
   });
 }
 // Due to web audio will fire most events synchronously back-to-back,
 // and we can't yield them in a chain without missing actors, this allows
 // us to listen for `n` events and return a promise resolving to them.
 //
 // Takes a `front` object that is an event emitter, the number of
 // programs that should be listened to and waited on, and an optional
 // `onAdd` function that calls with the entire actors array on program link
 function getN (front, eventName, count, spread) {
   let actors = [];
   let deferred = Promise.defer();
   front.on(eventName, function onEvent (...args) {
     let actor = args[0];
     if (actors.length !== count) {
       actors.push(spread ? args : actor);
     }
     if (actors.length === count) {
       front.off(eventName, onEvent);
       deferred.resolve(actors);
     }
   });
   return deferred.promise;
 }
 function get (front, eventName) { return getN(front, eventName, 1); }
 function get2 (front, eventName) { return getN(front, eventName, 2); }
 function get3 (front, eventName) { return getN(front, eventName, 3); }
 function getSpread (front, eventName) { return getN(front, eventName, 1, true); }
 function get2Spread (front, eventName) { return getN(front, eventName, 2, true); }
 function get3Spread (front, eventName) { return getN(front, eventName, 3, true); }
 function getNSpread (front, eventName, count) { return getN(front, eventName, count, true); }
 /**
  * Waits for the UI_GRAPH_RENDERED event to fire, but only
  * resolves when the graph was rendered with the correct count of
  * nodes and edges.
  */
 function waitForGraphRendered (front, nodeCount, edgeCount) {
   let deferred = Promise.defer();
   let eventName = front.EVENTS.UI_GRAPH_RENDERED;
   front.on(eventName, function onGraphRendered (_, nodes, edges) {
     if (nodes === nodeCount && edges === edgeCount) {
       front.off(eventName, onGraphRendered);
       deferred.resolve();
     }
   });
   return deferred.promise;
 }
 function checkVariableView (view, index, hash) {
   let scope = view.getScopeAtIndex(index);
   let variables = Object.keys(hash);
   variables.forEach(variable => {
     let aVar = scope.get(variable);
     is(aVar.target.querySelector(".name").getAttribute("value"), variable,
       "Correct property name for " + variable);
     is(aVar.target.querySelector(".value").getAttribute("value"), hash[variable],
       "Correct property value of " + hash[variable] + " for " + variable);
   });
 }
 function modifyVariableView (win, view, index, prop, value) {
   let deferred = Promise.defer();
   let scope = view.getScopeAtIndex(index);
   let aVar = scope.get(prop);
   scope.expand();
   // Must wait for the scope DOM to be available to receive
   // events
   executeSoon(() => {
     let varValue = aVar.target.querySelector(".title > .value");
     EventUtils.sendMouseEvent({ type: "mousedown" }, varValue, win);
     win.on(win.EVENTS.UI_SET_PARAM, handleSetting);
     win.on(win.EVENTS.UI_SET_PARAM_ERROR, handleSetting);
     info("Setting " + value + " for " + prop + "....");
     let varInput = aVar.target.querySelector(".title > .element-value-input");
     setText(varInput, value);
     EventUtils.sendKey("RETURN", win);
   });
   function handleSetting (eventName) {
     win.off(win.EVENTS.UI_SET_PARAM, handleSetting);
     win.off(win.EVENTS.UI_SET_PARAM_ERROR, handleSetting);
     if (eventName === win.EVENTS.UI_SET_PARAM)
       deferred.resolve();
     if (eventName === win.EVENTS.UI_SET_PARAM_ERROR)
       deferred.reject();
   }
   return deferred.promise;
 }
 function clearText (aElement) {
   info("Clearing text...");
   aElement.focus();
   aElement.value = "";
 }
 function setText (aElement, aText) {
   clearText(aElement);
   info("Setting text: " + aText);
   aElement.value = aText;
 }
 function findGraphEdge (win, source, target) {
   let selector = ".edgePaths .edgePath[data-source='" + source + "'][data-target='" + target + "']";
   return win.document.querySelector(selector);
 }
 function findGraphNode (win, node) {
   let selector = ".nodes > g[data-id='" + node + "']";
   return win.document.querySelector(selector);
 }
 function click (win, element) {
   EventUtils.sendMouseEvent({ type: "click" }, element, win);
 }
 function mouseOver (win, element) {
   EventUtils.sendMouseEvent({ type: "mouseover" }, element, win);
 }
 /**
  * List of audio node properties to test against expectations of the AudioNode actor
  */
 const NODE_PROPERTIES = {
   "OscillatorNode": ["type", "frequency", "detune"],
   "GainNode": ["gain"],
   "DelayNode": ["delayTime"],
   "AudioBufferSourceNode": ["buffer", "playbackRate", "loop", "loopStart", "loopEnd"],
   "ScriptProcessorNode": ["bufferSize"],
   "PannerNode": ["panningModel", "distanceModel", "refDistance", "maxDistance", "rolloffFactor", "coneInnerAngle", "coneOuterAngle", "coneOuterGain"],
   "ConvolverNode": ["buffer", "normalize"],
   "DynamicsCompressorNode": ["threshold", "knee", "ratio", "reduction", "attack", "release"],
   "BiquadFilterNode": ["type", "frequency", "Q", "detune", "gain"],
   "WaveShaperNode": ["curve", "oversample"],
   "AnalyserNode": ["fftSize", "minDecibels", "maxDecibels", "smoothingTimeConstraint", "frequencyBinCount"],
   "AudioDestinationNode": [],
   "ChannelSplitterNode": [],
   "ChannelMergerNode": []
 };