зеркало из https://github.com/mozilla/pjs.git
194 строки
5.5 KiB
JavaScript
194 строки
5.5 KiB
JavaScript
function closeWindow(aClose, aPromptFunction)
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{
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# Closing the last window doesn't quit the application on OS X.
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#ifndef XP_MACOSX
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var windowCount = 0;
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var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
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.getService(Components.interfaces.nsIWindowMediator);
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var e = wm.getEnumerator(null);
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while (e.hasMoreElements()) {
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var w = e.getNext();
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if (++windowCount == 2)
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break;
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}
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var inPrivateBrowsing = false;
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try {
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var pbSvc = Components.classes["@mozilla.org/privatebrowsing;1"]
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.getService(Components.interfaces.nsIPrivateBrowsingService);
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inPrivateBrowsing = pbSvc.privateBrowsingEnabled;
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} catch(e) {
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// safe to ignore
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}
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// If we're down to the last window and someone tries to shut down, check to make sure we can!
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if (windowCount == 1 && !canQuitApplication())
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return false;
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else if (windowCount != 1 || inPrivateBrowsing)
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#endif
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if (typeof(aPromptFunction) == "function" && !aPromptFunction())
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return false;
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if (aClose)
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window.close();
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return true;
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}
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function canQuitApplication()
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{
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var os = Components.classes["@mozilla.org/observer-service;1"]
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.getService(Components.interfaces.nsIObserverService);
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if (!os) return true;
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try {
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var cancelQuit = Components.classes["@mozilla.org/supports-PRBool;1"]
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.createInstance(Components.interfaces.nsISupportsPRBool);
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os.notifyObservers(cancelQuit, "quit-application-requested", null);
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// Something aborted the quit process.
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if (cancelQuit.data)
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return false;
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}
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catch (ex) { }
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return true;
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}
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function goQuitApplication()
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{
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if (!canQuitApplication())
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return false;
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var appStartup = Components.classes['@mozilla.org/toolkit/app-startup;1'].
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getService(Components.interfaces.nsIAppStartup);
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appStartup.quit(Components.interfaces.nsIAppStartup.eAttemptQuit);
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return true;
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}
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//
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// Command Updater functions
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//
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function goUpdateCommand(aCommand)
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{
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try {
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var controller = top.document.commandDispatcher
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.getControllerForCommand(aCommand);
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var enabled = false;
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if (controller)
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enabled = controller.isCommandEnabled(aCommand);
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goSetCommandEnabled(aCommand, enabled);
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}
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catch (e) {
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Components.utils.reportError("An error occurred updating the " +
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aCommand + " command: " + e);
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}
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}
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function goDoCommand(aCommand)
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{
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try {
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var controller = top.document.commandDispatcher
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.getControllerForCommand(aCommand);
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if (controller && controller.isCommandEnabled(aCommand))
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controller.doCommand(aCommand);
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}
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catch (e) {
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Components.utils.reportError("An error occurred executing the " +
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aCommand + " command: " + e);
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}
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}
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function goSetCommandEnabled(aID, aEnabled)
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{
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var node = document.getElementById(aID);
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if (node) {
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if (aEnabled)
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node.removeAttribute("disabled");
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else
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node.setAttribute("disabled", "true");
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}
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}
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function goSetMenuValue(aCommand, aLabelAttribute)
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{
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var commandNode = top.document.getElementById(aCommand);
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if (commandNode) {
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var label = commandNode.getAttribute(aLabelAttribute);
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if (label)
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commandNode.setAttribute("label", label);
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}
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}
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function goSetAccessKey(aCommand, aValueAttribute)
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{
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var commandNode = top.document.getElementById(aCommand);
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if (commandNode) {
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var value = commandNode.getAttribute(aValueAttribute);
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if (value)
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commandNode.setAttribute("accesskey", value);
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}
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}
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// this function is used to inform all the controllers attached to a node that an event has occurred
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// (e.g. the tree controllers need to be informed of blur events so that they can change some of the
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// menu items back to their default values)
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function goOnEvent(aNode, aEvent)
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{
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var numControllers = aNode.controllers.getControllerCount();
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var controller;
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for (var controllerIndex = 0; controllerIndex < numControllers; controllerIndex++) {
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controller = aNode.controllers.getControllerAt(controllerIndex);
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if (controller)
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controller.onEvent(aEvent);
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}
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}
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function visitLink(aEvent) {
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var node = aEvent.target;
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while (node.nodeType != Node.ELEMENT_NODE)
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node = node.parentNode;
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var url = node.getAttribute("link");
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if (!url)
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return;
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var protocolSvc = Components.classes["@mozilla.org/uriloader/external-protocol-service;1"]
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.getService(Components.interfaces.nsIExternalProtocolService);
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var ioService = Components.classes["@mozilla.org/network/io-service;1"]
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.getService(Components.interfaces.nsIIOService);
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var uri = ioService.newURI(url, null, null);
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// if the scheme is not an exposed protocol, then opening this link
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// should be deferred to the system's external protocol handler
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if (protocolSvc.isExposedProtocol(uri.scheme)) {
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var win = window.top;
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if (win instanceof Components.interfaces.nsIDOMChromeWindow) {
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while (win.opener && !win.opener.closed)
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win = win.opener;
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}
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win.open(uri.spec);
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}
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else
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protocolSvc.loadUrl(uri);
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}
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function setTooltipText(aID, aTooltipText)
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{
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var element = document.getElementById(aID);
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if (element)
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element.setAttribute("tooltiptext", aTooltipText);
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}
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__defineGetter__("NS_ASSERT", function() {
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delete this.NS_ASSERT;
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var tmpScope = {};
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Components.utils.import("resource://gre/modules/debug.js", tmpScope);
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return this.NS_ASSERT = tmpScope.NS_ASSERT;
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});
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