diff options
Diffstat (limited to 'chromium/tools/measure_page_load_time/ff_ext/content/measure_page_load_time.js')
| -rw-r--r-- | chromium/tools/measure_page_load_time/ff_ext/content/measure_page_load_time.js | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/chromium/tools/measure_page_load_time/ff_ext/content/measure_page_load_time.js b/chromium/tools/measure_page_load_time/ff_ext/content/measure_page_load_time.js deleted file mode 100644 index 44473ccb105..00000000000 --- a/chromium/tools/measure_page_load_time/ff_ext/content/measure_page_load_time.js +++ /dev/null @@ -1,209 +0,0 @@ -// Copyright (c) 2012 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. - -/** - * @fileoverview measure_page_load_time.js implements a Firefox extension - * for measuring how long a page takes to load. It waits on TCP port - * 42492 for connections, then accepts URLs and returns strings of the - * form url,time, where "time" is the load time in milliseconds or the - * string "timeout" or "error". Load time is measured from the call to - * loadURI until the load event fires, or until the status changes to - * STATUS_STOP if the load event doesn't fire (there's an error.) - * @author jhaas@google.com (Jonathan Haas) */ - -// Shorthand reference to nsIWebProgress[Listener] interfaces -var IWP = Components.interfaces.nsIWebProgress; -var IWPL = Components.interfaces.nsIWebProgressListener; - - -var MPLT = { - /** - * Constants - */ - PORT_NUMBER : 42492, // port to listen for connections on - TIME_OUT : 4 * 60 * 1000, // timeout in 4 minutes - - /** - * Incoming URL buffer - * @type {string} - */ - textBuffer : '', - - /** - * URL we're currently visiting - * @type {string} - */ - URL : '', - - /** - * Listener to accept incoming connections - * @type {nsIServerSocketListener} - */ - acceptListener : - { - onSocketAccepted : function(serverSocket, transport) - { - MPLT.streamInput = transport.openInputStream(0,0,0); - MPLT.streamOutput = transport.openOutputStream(0,0,0); - - MPLT.scriptStream = Components.classes['@mozilla.org/scriptableinputstream;1'] - .createInstance(Components.interfaces.nsIScriptableInputStream); - MPLT.scriptStream.init(MPLT.streamInput); - MPLT.pump = Components.classes['@mozilla.org/network/input-stream-pump;1'] - .createInstance(Components.interfaces.nsIInputStreamPump); - MPLT.pump.init(MPLT.streamInput, -1, -1, 0, 0, false); - MPLT.pump.asyncRead(MPLT.dataListener,null); - }, - - onStopListening : function(){} - }, - - /** - * Listener for network input - * @type {nsIStreamListener} - */ - dataListener : - { - onStartRequest: function(){}, - onStopRequest: function(){}, - onDataAvailable: function(request, context, inputStream, offset, count){ - // Add the received data to the buffer, then process it - // Change CRLF to newline while we're at it - MPLT.textBuffer += MPLT.scriptStream.read(count).replace('\r\n', '\n'); - - MPLT.process(); - } - }, - - /** - * Process the incoming data buffer - */ - process : function() - { - // If we're waiting for a page to finish loading, wait - if (MPLT.timeLoadStarted) - return; - - // Look for a carriage return - var firstCR = MPLT.textBuffer.indexOf('\n'); - - // If we haven't received a carriage return yet, wait - if (firstCR < 0) - return; - - // If the first character was a carriage return, we're done! - if (firstCR == 0) { - MPLT.textBuffer = ''; - MPLT.streamInput.close(); - MPLT.streamOutput.close(); - - return; - } - - // Remove the URL from the buffer - MPLT.URL = MPLT.textBuffer.substr(0, firstCR); - MPLT.textBuffer = MPLT.textBuffer.substr(firstCR + 1); - - // Remember the current time and navigate to the new URL - MPLT.timeLoadStarted = new Date(); - gBrowser.loadURIWithFlags(MPLT.URL, gBrowser.LOAD_FLAGS_BYPASS_CACHE); - setTimeout('MPLT.onTimeOut()', MPLT.TIME_OUT); - }, - - /** - * Page load completion handler - */ - onPageLoad : function(e) { - // Ignore loads of non-HTML documents - if (!(e.originalTarget instanceof HTMLDocument)) - return; - - // Also ignore subframe loads - if (e.originalTarget.defaultView.frameElement) - return; - - clearTimeout(); - var timeElapsed = new Date() - MPLT.timeLoadStarted; - - MPLT.outputResult(timeElapsed); - }, - - /** - * Timeout handler - */ - onTimeOut : function() { - gBrowser.stop(); - - MPLT.outputResult('timeout'); - }, - - - /** - * Sends a properly-formatted result to the client - * @param {string} result The value to send along with the URL - */ - outputResult : function(result) { - - if (MPLT.URL) { - var outputString = MPLT.URL + ',' + result + '\n'; - MPLT.streamOutput.write(outputString, outputString.length); - MPLT.URL = ''; - } - - MPLT.timeLoadStarted = null; - MPLT.process(); - }, - - /** - * Time the page load started. If null, we're waiting for the - * initial page load, or otherwise don't care about the page - * that's currently loading - * @type {number} - */ - timeLoadStarted : null, - - /* - * TODO(jhaas): add support for nsIWebProgressListener - * If the URL being visited died as part of a network error - * (host not found, connection reset by peer, etc), the onload - * event doesn't fire. The only way to catch it would be in - * a web progress listener. However, nsIWebProgress is not - * behaving according to documentation. More research is needed. - * For now, omitting it means that if any of our URLs are "dirty" - * (do not point to real web servers with real responses), we'll log - * them as timeouts. This doesn't affect pages where the server - * exists but returns an error code. - */ - - /** - * Initialize the plugin, create the socket and listen - */ - initialize: function() { - // Register for page load events - gBrowser.addEventListener('load', this.onPageLoad, true); - - // Set a timeout to wait for the initial page to load - MPLT.timeLoadStarted = new Date(); - setTimeout('MPLT.onTimeOut()', MPLT.TIME_OUT); - - // Create the listening socket - MPLT.serverSocket = Components.classes['@mozilla.org/network/server-socket;1'] - .createInstance(Components.interfaces.nsIServerSocket); - - MPLT.serverSocket.init(MPLT.PORT_NUMBER, true, 1); - MPLT.serverSocket.asyncListen(this.acceptListener); - }, - - /** - * Close the socket(s) - */ - deinitialize: function() { - if (MPLT.streamInput) MPLT.streamInput.close(); - if (MPLT.streamOutput) MPLT.streamOutput.close(); - if (MPLT.serverSocket) MPLT.serverSocket.close(); - } -}; - -window.addEventListener('load', function(e) { MPLT.initialize(); }, false); -window.addEventListener('unload', function(e) { MPLT.deinitialize(); }, false); |