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-// Copyright 2007 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview Contains application code for the XPC demo.
- * This script is used in both the container page and the iframe.
- *
- */
-
-goog.require('goog.Uri');
-goog.require('goog.debug.Logger');
-goog.require('goog.dom');
-goog.require('goog.events');
-goog.require('goog.events.EventType');
-goog.require('goog.json');
-goog.require('goog.net.xpc.CrossPageChannel');
-
-
-/**
- * Namespace for the demo. We don't use goog.provide here because it's not a
- * real module (cannot be required).
- */
-var xpcdemo = {};
-
-
-/**
- * Global function to kick off initialization in the containing document.
- */
-goog.global.initOuter = function() {
- goog.events.listen(window, 'load', function() { xpcdemo.initOuter(); });
-};
-
-
-/**
- * Global function to kick off initialization in the iframe.
- */
-goog.global.initInner = function() {
- goog.events.listen(window, 'load', function() { xpcdemo.initInner(); });
-};
-
-
-/**
- * Initializes XPC in the containing page.
- */
-xpcdemo.initOuter = function() {
- // Build the configuration object.
- var cfg = {};
-
- var ownUri = new goog.Uri(window.location.href);
- var relayUri = ownUri.resolve(new goog.Uri('relay.html'));
- var pollUri = ownUri.resolve(new goog.Uri('blank.html'));
-
- // Determine the peer domain. Uses the value of the URI-parameter
- // 'peerdomain'. If that parameter is not present, it falls back to
- // the own domain so that the demo will work out of the box (but
- // communication will of course not cross domain-boundaries). For
- // real cross-domain communication, the easiest way is to point two
- // different host-names to the same webserver and then hit the
- // following URI:
- // http://host1.com/path/to/closure/demos/xpc/index.html?peerdomain=host2.com
- var peerDomain = ownUri.getParameterValue('peerdomain') || ownUri.getDomain();
-
- cfg[goog.net.xpc.CfgFields.LOCAL_RELAY_URI] = relayUri.toString();
- cfg[goog.net.xpc.CfgFields.PEER_RELAY_URI] =
- relayUri.setDomain(peerDomain).toString();
-
- cfg[goog.net.xpc.CfgFields.LOCAL_POLL_URI] = pollUri.toString();
- cfg[goog.net.xpc.CfgFields.PEER_POLL_URI] =
- pollUri.setDomain(peerDomain).toString();
-
-
- // Force transport to be used if tp-parameter is set.
- var tp = ownUri.getParameterValue('tp');
- if (tp) {
- cfg[goog.net.xpc.CfgFields.TRANSPORT] = parseInt(tp, 10);
- }
-
-
- // Construct the URI of the peer page.
-
- var peerUri = ownUri.resolve(
- new goog.Uri('inner.html')).setDomain(peerDomain);
- // Passthrough of verbose and compiled flags.
- if (goog.isDef(ownUri.getParameterValue('verbose'))) {
- peerUri.setParameterValue('verbose', '');
- }
- if (goog.isDef(ownUri.getParameterValue('compiled'))) {
- peerUri.setParameterValue('compiled', '');
- }
-
- cfg[goog.net.xpc.CfgFields.PEER_URI] = peerUri;
-
- // Instantiate the channel.
- xpcdemo.channel = new goog.net.xpc.CrossPageChannel(cfg);
-
- // Create the peer iframe.
- xpcdemo.peerIframe = xpcdemo.channel.createPeerIframe(
- goog.dom.getElement('iframeContainer'));
-
- xpcdemo.initCommon_();
-
- goog.dom.getElement('inactive').style.display = 'none';
- goog.dom.getElement('active').style.display = '';
-};
-
-
-/**
- * Initialization in the iframe.
- */
-xpcdemo.initInner = function() {
- // Get the channel configuration passed by the containing document.
- var cfg = goog.json.parse(
- (new goog.Uri(window.location.href)).getParameterValue('xpc'));
-
- xpcdemo.channel = new goog.net.xpc.CrossPageChannel(cfg);
-
- xpcdemo.initCommon_();
-};
-
-
-/**
- * Initializes the demo.
- * Registers service-handlers and connects the channel.
- * @private
- */
-xpcdemo.initCommon_ = function() {
- var xpcLogger = goog.debug.Logger.getLogger('goog.net.xpc');
- xpcLogger.addHandler(function(logRecord) {
- xpcdemo.log('[XPC] ' + logRecord.getMessage());
- });
- xpcLogger.setLevel(window.location.href.match(/verbose/) ?
- goog.debug.Logger.Level.ALL : goog.debug.Logger.Level.INFO);
-
- // Register services.
- xpcdemo.channel.registerService('log', xpcdemo.log);
- xpcdemo.channel.registerService('ping', xpcdemo.pingHandler_);
- xpcdemo.channel.registerService('events', xpcdemo.eventsMsgHandler_);
-
- // Connect the channel.
- xpcdemo.channel.connect(function() {
- xpcdemo.channel.send('log', 'Hi from ' + window.location.host);
- goog.events.listen(goog.dom.getElement('clickfwd'),
- 'click', xpcdemo.mouseEventHandler_);
- });
-};
-
-
-/**
- * Kills the peer iframe and the disposes the channel.
- */
-xpcdemo.teardown = function() {
- goog.events.unlisten(goog.dom.getElement('clickfwd'),
- goog.events.EventType.CLICK, xpcdemo.mouseEventHandler_);
-
- xpcdemo.channel.dispose();
- delete xpcdemo.channel;
-
- goog.dom.removeNode(xpcdemo.peerIframe);
- xpcdemo.peerIframe = null;
-
- goog.dom.getElement('inactive').style.display = '';
- goog.dom.getElement('active').style.display = 'none';
-};
-
-
-/**
- * Logging function. Inserts log-message into element with it id 'console'.
- * @param {string} msgString The log-message.
- */
-xpcdemo.log = function(msgString) {
- xpcdemo.consoleElm || (xpcdemo.consoleElm = goog.dom.getElement('console'));
- var msgElm = goog.dom.createDom('div');
- msgElm.innerHTML = msgString;
- xpcdemo.consoleElm.insertBefore(msgElm, xpcdemo.consoleElm.firstChild);
-};
-
-
-/**
- * Sends a ping request to the peer.
- */
-xpcdemo.ping = function() {
- // send current time
- xpcdemo.channel.send('ping', goog.now() + '');
-};
-
-/**
- * The handler function for incoming pings (messages sent to the service
- * called 'ping');
- * @param {string} payload The message payload.
- * @private
- */
-xpcdemo.pingHandler_ = function(payload) {
- // is the incoming message a response to a ping we sent?
- if (payload.charAt(0) == '#') {
- // calculate roundtrip time and log
- var dt = goog.now() - parseInt(payload.substring(1), 10);
- xpcdemo.log('roundtrip: ' + dt + 'ms');
- } else {
- // incoming message is a ping initiated from peer
- // -> prepend with '#' and send back
- xpcdemo.channel.send('ping', '#' + payload);
- xpcdemo.log('ping reply sent');
- }
-};
-
-
-/**
- * Counter for mousemove events.
- * @type {number}
- * @private
- */
-xpcdemo.mmCount_ = 0;
-
-
-/**
- * Holds timestamp when the last mousemove rate has been logged.
- * @type {number}
- * @private
- */
-xpcdemo.mmLastRateOutput_ = 0;
-
-
-/**
- * Start mousemove event forwarding. Registers a listener on the document which
- * sends them over the channel.
- */
-xpcdemo.startMousemoveForwarding = function() {
- goog.events.listen(document, goog.events.EventType.MOUSEMOVE,
- xpcdemo.mouseEventHandler_);
- xpcdemo.mmLastRateOutput_ = goog.now();
-};
-
-
-/**
- * Stop mousemove event forwarding.
- */
-xpcdemo.stopMousemoveForwarding = function() {
- goog.events.unlisten(document, goog.events.EventType.MOUSEMOVE,
- xpcdemo.mouseEventHandler_);
-};
-
-
-/**
- * Function to be used as handler for mouse-events.
- * @param {goog.events.BrowserEvent} e The mouse event.
- * @private
- */
-xpcdemo.mouseEventHandler_ = function(e) {
- xpcdemo.channel.send('events',
- [e.type, e.clientX, e.clientY, goog.now()].join(','));
-};
-
-
-/**
- * Handler for the 'events' service.
- * @param {string} payload The string returned from the xpcdemo.
- * @private
- */
-xpcdemo.eventsMsgHandler_ = function(payload) {
- var now = goog.now();
- var args = payload.split(',');
- var type = args[0];
- var pageX = args[1];
- var pageY = args[2];
- var time = parseInt(args[3], 10);
-
- var msg = type + ': (' + pageX + ',' + pageY + '), latency: ' + (now - time);
- xpcdemo.log(msg);
-
- if (type == goog.events.EventType.MOUSEMOVE) {
- xpcdemo.mmCount_++;
- var dt = now - xpcdemo.mmLastRateOutput_;
- if (dt > 1000) {
- msg = 'RATE (mousemove/s): ' + (1000 * xpcdemo.mmCount_ / dt);
- xpcdemo.log(msg);
- xpcdemo.mmLastRateOutput_ = now;
- xpcdemo.mmCount_ = 0;
- }
- }
-};
-
-
-/**
- * Send multiple messages.
- * @param {number} n The number of messages to send.
- */
-xpcdemo.sendN = function(n) {
- xpcdemo.count_ || (xpcdemo.count_ = 1);
-
- for (var i = 0; i < n; i++) {
- xpcdemo.channel.send('log', '' + xpcdemo.count_++);
- }
-};