Chromium Code Reviews| Index: chrome/browser/resources/gpu_internals/browser_bridge.js |
| =================================================================== |
| --- chrome/browser/resources/gpu_internals/browser_bridge.js (revision 0) |
| +++ chrome/browser/resources/gpu_internals/browser_bridge.js (revision 0) |
| @@ -0,0 +1,63 @@ |
| +// Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| +// Use of this source code is governed by a BSD-style license that can be |
| +// found in the LICENSE file. |
| + |
| +cr.define('gpu', function() { |
| + /** |
| + * This class provides a 'bridge' for communicating between javascript and |
| + * the browser. |
| + * @constructor |
| + */ |
| + function BrowserBridge() { |
| + // If we are not running inside DOMUI, output chrome.send messages |
| + // to the console to help with quick-iteration debugging. |
| + if (chrome.send === undefined && console.log) { |
| + chrome.send = function(messageHandler, args) { |
| + if (args) { |
| + console.log('chrome.send', messageHandler, args); |
|
arv (Not doing code reviews)
2010/12/06 19:45:57
No need for the branch. I think it is fine to prin
nduca
2010/12/07 01:03:40
Done.
|
| + } else { |
| + console.log('chrome.send', messageHandler); |
| + } |
| + }; |
| + } |
| + |
| + this.nextRequestId_ = 0; |
| + this.pendingCallbacks_ = []; |
| + } |
| + |
| + BrowserBridge.prototype = { |
| + __proto__: Object.prototype, |
| + |
| + /** |
| + * Sends a message to the browser with specified args. The |
| + * browser will reply asynchronously via the provided callback. |
| + */ |
| + callAsync: function(submessage, args, callback) { |
| + var requestId = this.nextRequestId_; |
| + this.nextRequestId_ += 1; |
| + this.pendingCallbacks_[requestId] = callback; |
| + if (!args) { |
| + chrome.send('callAsync', [requestId.toString(), submessage]); |
| + } else { |
| + var allArgs = [requestId.toString(), submessage].concat(args); |
| + chrome.send('callAsync', allArgs); |
| + } |
| + }, |
| + |
| + /** |
| + * Called by gpu c++ code when client info is ready. |
| + */ |
| + onCallAsyncReply: function(requestId, args) { |
| + if (this.pendingCallbacks_[requestId] === undefined) { |
| + throw new Error('requestId ' + requestId + ' is not pending'); |
| + } |
| + var callback = this.pendingCallbacks_[requestId]; |
| + callback(args); |
| + delete this.pendingCallbacks_[requestId]; |
| + } |
| + }; |
| + |
| + return { |
| + BrowserBridge : BrowserBridge |
| + }; |
| +}); |
| Property changes on: chrome/browser/resources/gpu_internals/browser_bridge.js |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| + LF |