| // 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 Flash detection. |
| * @see ../demos/useragent.html |
| */ |
| |
| goog.provide('goog.userAgent.flash'); |
| |
| goog.require('goog.string'); |
| |
| |
| /** |
| * @define {boolean} Whether we know at compile-time that the browser doesn't |
| * have flash. |
| */ |
| goog.define('goog.userAgent.flash.ASSUME_NO_FLASH', false); |
| |
| |
| /** |
| * Whether we can detect that the browser has flash |
| * @type {boolean} |
| * @private |
| */ |
| goog.userAgent.flash.detectedFlash_ = false; |
| |
| |
| /** |
| * Full version information of flash installed, in form 7.0.61 |
| * @type {string} |
| * @private |
| */ |
| goog.userAgent.flash.detectedFlashVersion_ = ''; |
| |
| |
| /** |
| * Initializer for goog.userAgent.flash |
| * |
| * This is a named function so that it can be stripped via the jscompiler if |
| * goog.userAgent.flash.ASSUME_NO_FLASH is true. |
| * @private |
| */ |
| goog.userAgent.flash.init_ = function() { |
| if (navigator.plugins && navigator.plugins.length) { |
| var plugin = navigator.plugins['Shockwave Flash']; |
| if (plugin) { |
| goog.userAgent.flash.detectedFlash_ = true; |
| if (plugin.description) { |
| goog.userAgent.flash.detectedFlashVersion_ = |
| goog.userAgent.flash.getVersion_(plugin.description); |
| } |
| } |
| |
| if (navigator.plugins['Shockwave Flash 2.0']) { |
| goog.userAgent.flash.detectedFlash_ = true; |
| goog.userAgent.flash.detectedFlashVersion_ = '2.0.0.11'; |
| } |
| |
| } else if (navigator.mimeTypes && navigator.mimeTypes.length) { |
| var mimeType = navigator.mimeTypes['application/x-shockwave-flash']; |
| goog.userAgent.flash.detectedFlash_ = mimeType && mimeType.enabledPlugin; |
| if (goog.userAgent.flash.detectedFlash_) { |
| goog.userAgent.flash.detectedFlashVersion_ = |
| goog.userAgent.flash.getVersion_(mimeType.enabledPlugin.description); |
| } |
| |
| } else { |
| /** @preserveTry */ |
| try { |
| // Try 7 first, since we know we can use GetVariable with it |
| var ax = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.7'); |
| goog.userAgent.flash.detectedFlash_ = true; |
| goog.userAgent.flash.detectedFlashVersion_ = |
| goog.userAgent.flash.getVersion_(ax.GetVariable('$version')); |
| } catch (e) { |
| // Try 6 next, some versions are known to crash with GetVariable calls |
| /** @preserveTry */ |
| try { |
| var ax = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.6'); |
| goog.userAgent.flash.detectedFlash_ = true; |
| // First public version of Flash 6 |
| goog.userAgent.flash.detectedFlashVersion_ = '6.0.21'; |
| } catch (e2) { |
| /** @preserveTry */ |
| try { |
| // Try the default activeX |
| var ax = new ActiveXObject('ShockwaveFlash.ShockwaveFlash'); |
| goog.userAgent.flash.detectedFlash_ = true; |
| goog.userAgent.flash.detectedFlashVersion_ = |
| goog.userAgent.flash.getVersion_(ax.GetVariable('$version')); |
| } catch (e3) { |
| // No flash |
| } |
| } |
| } |
| } |
| }; |
| |
| |
| /** |
| * Derived from Apple's suggested sniffer. |
| * @param {string} desc e.g. Shockwave Flash 7.0 r61. |
| * @return {string} 7.0.61. |
| * @private |
| */ |
| goog.userAgent.flash.getVersion_ = function(desc) { |
| var matches = desc.match(/[\d]+/g); |
| if (!matches) { |
| return ''; |
| } |
| matches.length = 3; // To standardize IE vs FF |
| return matches.join('.'); |
| }; |
| |
| |
| if (!goog.userAgent.flash.ASSUME_NO_FLASH) { |
| goog.userAgent.flash.init_(); |
| } |
| |
| |
| /** |
| * Whether we can detect that the browser has flash |
| * @type {boolean} |
| */ |
| goog.userAgent.flash.HAS_FLASH = goog.userAgent.flash.detectedFlash_; |
| |
| |
| /** |
| * Full version information of flash installed, in form 7.0.61 |
| * @type {string} |
| */ |
| goog.userAgent.flash.VERSION = goog.userAgent.flash.detectedFlashVersion_; |
| |
| |
| /** |
| * Whether the installed flash version is as new or newer than a given version. |
| * @param {string} version The version to check. |
| * @return {boolean} Whether the installed flash version is as new or newer |
| * than a given version. |
| */ |
| goog.userAgent.flash.isVersion = function(version) { |
| return goog.string.compareVersions(goog.userAgent.flash.VERSION, |
| version) >= 0; |
| }; |