1 files changed, 120 insertions, 0 deletions
diff --git a/toolkit/content/globalOverlay.js b/toolkit/content/globalOverlay.js
new file mode 100644
index 0000000000..2cc0804e7b
--- /dev/null
+++ b/toolkit/content/globalOverlay.js
@@ -0,0 +1,120 @@
+/* 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/. */
+
+function closeWindow(aClose, aPromptFunction) {
+  let { AppConstants } = ChromeUtils.import(
+    "resource://gre/modules/AppConstants.jsm"
+  );
+
+  // Closing the last window doesn't quit the application on OS X.
+  if (AppConstants.platform != "macosx") {
+    var windowCount = 0;
+    for (let w of Services.wm.getEnumerator(null)) {
+      if (w.closed) {
+        continue;
+      }
+      if (++windowCount == 2) {
+        break;
+      }
+    }
+
+    // If we're down to the last window and someone tries to shut down, check to make sure we can!
+    if (windowCount == 1 && !canQuitApplication("lastwindow")) {
+      return false;
+    }
+    if (
+      windowCount != 1 &&
+      typeof aPromptFunction == "function" &&
+      !aPromptFunction()
+    ) {
+      return false;
+    }
+  } else if (typeof aPromptFunction == "function" && !aPromptFunction()) {
+    return false;
+  }
+
+  if (aClose) {
+    window.close();
+    return window.closed;
+  }
+
+  return true;
+}
+
+function canQuitApplication(aData) {
+  try {
+    var cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].createInstance(
+      Ci.nsISupportsPRBool
+    );
+    Services.obs.notifyObservers(
+      cancelQuit,
+      "quit-application-requested",
+      aData || null
+    );
+
+    // Something aborted the quit process.
+    if (cancelQuit.data) {
+      return false;
+    }
+  } catch (ex) {}
+  return true;
+}
+
+function goQuitApplication() {
+  if (!canQuitApplication()) {
+    return false;
+  }
+
+  Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit);
+  return true;
+}
+
+//
+// Command Updater functions
+//
+function goUpdateCommand(aCommand) {
+  try {
+    var controller = top.document.commandDispatcher.getControllerForCommand(
+      aCommand
+    );
+
+    var enabled = false;
+    if (controller) {
+      enabled = controller.isCommandEnabled(aCommand);
+    }
+
+    goSetCommandEnabled(aCommand, enabled);
+  } catch (e) {
+    Cu.reportError(
+      "An error occurred updating the " + aCommand + " command: " + e
+    );
+  }
+}
+
+function goDoCommand(aCommand) {
+  try {
+    var controller = top.document.commandDispatcher.getControllerForCommand(
+      aCommand
+    );
+    if (controller && controller.isCommandEnabled(aCommand)) {
+      controller.doCommand(aCommand);
+    }
+  } catch (e) {
+    Cu.reportError(
+      "An error occurred executing the " + aCommand + " command: " + e
+    );
+  }
+}
+
+function goSetCommandEnabled(aID, aEnabled) {
+  var node = document.getElementById(aID);
+
+  if (node) {
+    if (aEnabled) {
+      node.removeAttribute("disabled");
+    } else {
+      node.setAttribute("disabled", "true");
+    }
+  }
+}