1 files changed, 74 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.12/lib/sdk/private-browsing/utils.js b/tools/addon-sdk-1.12/lib/sdk/private-browsing/utils.js
new file mode 100644
index 0000000..1f57ca0
--- /dev/null
+++ b/tools/addon-sdk-1.12/lib/sdk/private-browsing/utils.js
@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+'use strict';
+
+module.metadata = {
+  "stability": "unstable"
+};
+
+const { Cc, Ci } = require('chrome');
+const { defer } = require('../lang/functional');
+const observers = require('../deprecated/observer-service');
+const { emit, on, once, off } = require('../event/core');
+const { when: unload } = require('../system/unload');
+const { getWindowLoadingContext } = require('../window/utils');
+const { deprecateFunction } = require('../util/deprecate');
+
+let deferredEmit = defer(emit);
+
+let pbService;
+
+// Currently, only Firefox implements the private browsing service.
+if (require("../system/xul-app").is("Firefox")) {
+  pbService = Cc["@mozilla.org/privatebrowsing;1"].
+              getService(Ci.nsIPrivateBrowsingService);
+
+  // set up an observer for private browsing switches.
+  observers.add('private-browsing-transition-complete', function onChange() {
+    // Emit event with in next turn of event loop.
+    deferredEmit(exports, pbService.privateBrowsingEnabled ? 'start' : 'stop');
+  });
+}
+
+// checks that per-window private browsing implemented
+let isWindowPBEnabled = function isWindowPBEnabled(chromeWin) {
+  return !!(chromeWin &&
+         'gPrivateBrowsingUI' in chromeWin &&
+         'privateWindow' in chromeWin.gPrivateBrowsingUI);
+}
+exports.isWindowPBEnabled = isWindowPBEnabled;
+
+// We toggle private browsing mode asynchronously in order to work around
+// bug 659629.  Since private browsing transitions are asynchronous
+// anyway, this doesn't significantly change the behavior of the API.
+// Note: this method should not be used with `chromeWin` argument until
+//       the UI has been implemented. Bug 729865
+let setMode = defer(function setMode(value, chromeWin) {
+  value = !!value;  // Cast to boolean.
+
+  if (isWindowPBEnabled(chromeWin))
+    return getWindowLoadingContext(chromeWin).usePrivateBrowsing = value;
+
+  // default
+  return pbService && (pbService.privateBrowsingEnabled = value);
+});
+exports.setMode = deprecateFunction(
+  setMode,
+  'require("private-browsing").activate and require("private-browsing").deactivate ' +
+  'is deprecated.'
+);
+
+let getMode = function getMode(chromeWin) {
+  if (isWindowPBEnabled(chromeWin))
+    return getWindowLoadingContext(chromeWin).usePrivateBrowsing;
+
+  // default
+  return pbService ? pbService.privateBrowsingEnabled : false;
+};
+exports.getMode = getMode;
+
+exports.on = on.bind(null, exports);
+
+// Make sure listeners are cleaned up.
+unload(function() off(exports));