gears: add support files

1 files changed, 87 insertions, 0 deletions

diff --git a/gears_init.js b/gears_init.js
new file mode 100644
index 000000000..3462d73e8
--- /dev/null
+++ b/gears_init.js
@@ -0,0 +1,87 @@
+// 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 IE Mobile 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};
+  }
+})();