| // Copyright 2007, Google Inc. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // 3. Neither the name of Google Inc. nor the names of its contributors may be |
| // used to endorse or promote products derived from this software without |
| // specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Sets up google.gears.*, which is *the only* supported way to access Gears. |
| // |
| // Circumvent this file at your own risk! |
| // |
| // In the future, Gears may automatically define google.gears.* without this |
| // file. Gears may use these objects to transparently fix bugs and compatibility |
| // issues. Applications that use the code below will continue to work seamlessly |
| // when that happens. |
| |
| (function() { |
| // We are already defined. Hooray! |
| if (window.google && google.gears) { |
| return; |
| } |
| |
| var factory = null; |
| |
| // Firefox |
| if (typeof GearsFactory != 'undefined') { |
| factory = new GearsFactory(); |
| } else { |
| // IE |
| try { |
| factory = new ActiveXObject('Gears.Factory'); |
| // privateSetGlobalObject is only required and supported on WinCE. |
| if (factory.getBuildInfo().indexOf('ie_mobile') != -1) { |
| factory.privateSetGlobalObject(this); |
| } |
| } catch (e) { |
| // Safari |
| if ((typeof navigator.mimeTypes != 'undefined') |
| && navigator.mimeTypes["application/x-googlegears"]) { |
| factory = document.createElement("object"); |
| factory.style.display = "none"; |
| factory.width = 0; |
| factory.height = 0; |
| factory.type = "application/x-googlegears"; |
| document.documentElement.appendChild(factory); |
| } |
| } |
| } |
| |
| // *Do not* define any objects if Gears is not installed. This mimics the |
| // behavior of Gears defining the objects in the future. |
| if (!factory) { |
| return; |
| } |
| |
| // Now set up the objects, being careful not to overwrite anything. |
| // |
| // Note: In Internet Explorer for Windows Mobile, you can't add properties to |
| // the window object. However, global objects are automatically added as |
| // properties of the window object in all browsers. |
| if (!window.google) { |
| google = {}; |
| } |
| |
| if (!google.gears) { |
| google.gears = {factory: factory}; |
| } |
| })(); |
