diff options
Diffstat (limited to 'contexts/data/lib/closure-library/closure/goog/net/tmpnetwork.js')
-rw-r--r-- | contexts/data/lib/closure-library/closure/goog/net/tmpnetwork.js | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/net/tmpnetwork.js b/contexts/data/lib/closure-library/closure/goog/net/tmpnetwork.js deleted file mode 100644 index 6f9c03c..0000000 --- a/contexts/data/lib/closure-library/closure/goog/net/tmpnetwork.js +++ /dev/null @@ -1,153 +0,0 @@ -// Copyright 2006 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 tmpnetwork.js contains some temporary networking functions - * for browserchannel which will be moved at a later date. - */ - - -/** - * Namespace for BrowserChannel - */ -goog.provide('goog.net.tmpnetwork'); - -goog.require('goog.Uri'); -goog.require('goog.net.ChannelDebug'); - - -/** - * Default timeout to allow for google.com pings. - * @type {number} - */ -goog.net.tmpnetwork.GOOGLECOM_TIMEOUT = 10000; - - -goog.net.tmpnetwork.testGoogleCom = function(callback, opt_imageUri) { - // We need to add a 'rand' to make sure the response is not fulfilled - // by browser cache. - var uri = opt_imageUri; - if (!uri) { - uri = new goog.Uri('//www.google.com/images/cleardot.gif'); - uri.makeUnique(); - } - goog.net.tmpnetwork.testLoadImage(uri.toString(), - goog.net.tmpnetwork.GOOGLECOM_TIMEOUT, callback); -}; - - -/** - * Test loading the given image, retrying if necessary. - * @param {string} url URL to the iamge. - * @param {number} timeout Milliseconds before giving up. - * @param {Function} callback Function to call with results. - * @param {number} retries The number of times to retry. - * @param {number=} opt_pauseBetweenRetriesMS Optional number of milliseconds - * between retries - defaults to 0. - */ -goog.net.tmpnetwork.testLoadImageWithRetries = function(url, timeout, callback, - retries, opt_pauseBetweenRetriesMS) { - var channelDebug = new goog.net.ChannelDebug(); - channelDebug.debug('TestLoadImageWithRetries: ' + opt_pauseBetweenRetriesMS); - if (retries == 0) { - // no more retries, give up - callback(false); - return; - } - - var pauseBetweenRetries = opt_pauseBetweenRetriesMS || 0; - retries--; - goog.net.tmpnetwork.testLoadImage(url, timeout, function(succeeded) { - if (succeeded) { - callback(true); - } else { - // try again - goog.global.setTimeout(function() { - goog.net.tmpnetwork.testLoadImageWithRetries(url, timeout, callback, - retries, pauseBetweenRetries); - }, pauseBetweenRetries); - } - }); -}; - - -/** - * Test loading the given image. - * @param {string} url URL to the iamge. - * @param {number} timeout Milliseconds before giving up. - * @param {Function} callback Function to call with results. - */ -goog.net.tmpnetwork.testLoadImage = function(url, timeout, callback) { - var channelDebug = new goog.net.ChannelDebug(); - channelDebug.debug('TestLoadImage: loading ' + url); - var img = new Image(); - img.onload = function() { - try { - channelDebug.debug('TestLoadImage: loaded'); - goog.net.tmpnetwork.clearImageCallbacks_(img); - callback(true); - } catch (e) { - channelDebug.dumpException(e); - } - }; - img.onerror = function() { - try { - channelDebug.debug('TestLoadImage: error'); - goog.net.tmpnetwork.clearImageCallbacks_(img); - callback(false); - } catch (e) { - channelDebug.dumpException(e); - } - }; - img.onabort = function() { - try { - channelDebug.debug('TestLoadImage: abort'); - goog.net.tmpnetwork.clearImageCallbacks_(img); - callback(false); - } catch (e) { - channelDebug.dumpException(e); - } - }; - img.ontimeout = function() { - try { - channelDebug.debug('TestLoadImage: timeout'); - goog.net.tmpnetwork.clearImageCallbacks_(img); - callback(false); - } catch (e) { - channelDebug.dumpException(e); - } - }; - - goog.global.setTimeout(function() { - if (img.ontimeout) { - img.ontimeout(); - } - }, timeout); - img.src = url; -}; - - -/** - * Clear handlers to avoid memory leaks. - * @param {Image} img The image to clear handlers from. - * @private - */ -goog.net.tmpnetwork.clearImageCallbacks_ = function(img) { - // NOTE(user): Nullified individually to avoid compiler warnings - // (BUG 658126) - img.onload = null; - img.onerror = null; - img.onabort = null; - img.ontimeout = null; -}; |