/// <summary>Raises the <see cref="ShowContextMenu"/> event.</summary>
/// <param name="e">The data for the event.</param>
protected virtual void OnShowContextMenu(GeckoContextMenuEventArgs e)
{
if (((GeckoContextMenuEventHandler)this.Events[ShowContextMenuEvent]) != null)
((GeckoContextMenuEventHandler)this.Events[ShowContextMenuEvent])(this, e);
}
void nsIContextMenuListener2.OnShowContextMenu(uint aContextFlags, nsIContextMenuInfo info)
{
// if we don't have a target node, we can't do anything by default. this happens in XUL forms (i.e. about:config)
if (info.GetTargetNode() == null)
return;
ContextMenu menu = new ContextMenu();
// no default items are added when the context menu is disabled
if (!this.NoDefaultContextMenu)
{
List<MenuItem> optionals = new List<MenuItem>();
if (this.CanUndo || this.CanRedo)
{
optionals.Add(new MenuItem("Undo", delegate { Undo(); }));
optionals.Add(new MenuItem("Redo", delegate { Redo(); }));
optionals[0].Enabled = this.CanUndo;
optionals[1].Enabled = this.CanRedo;
}
else
{
optionals.Add(new MenuItem("Back", delegate { GoBack(); }));
optionals.Add(new MenuItem("Forward", delegate { GoForward(); }));
optionals[0].Enabled = this.CanGoBack;
optionals[1].Enabled = this.CanGoForward;
}
optionals.Add(new MenuItem("-"));
if (this.CanCopyImageContents)
optionals.Add(new MenuItem("Copy Image Contents", delegate { CopyImageContents(); }));
if (this.CanCopyImageLocation)
optionals.Add(new MenuItem("Copy Image Location", delegate { CopyImageLocation(); }));
if (this.CanCopyLinkLocation)
optionals.Add(new MenuItem("Copy Link Location", delegate { CopyLinkLocation(); }));
if (this.CanCopySelection)
optionals.Add(new MenuItem("Copy Selection", delegate { CopySelection(); }));
MenuItem mnuSelectAll = new MenuItem("Select All");
mnuSelectAll.Click += delegate { SelectAll(); };
GeckoDocument doc = GeckoDocument.Create((nsIDOMHTMLDocument)info.GetTargetNode().GetOwnerDocument());
string viewSourceUrl = (doc == null) ? null : Convert.ToString(doc.Url);
MenuItem mnuViewSource = new MenuItem("View Source");
mnuViewSource.Enabled = !string.IsNullOrEmpty(viewSourceUrl);
mnuViewSource.Click += delegate { ViewSource(viewSourceUrl); };
string properties = (doc != null && doc.Url == Document.Url) ? "Page Properties" : "IFRAME Properties";
MenuItem mnuProperties = new MenuItem(properties);
mnuProperties.Enabled = doc != null;
mnuProperties.Click += delegate { ShowPageProperties(doc); };
menu.MenuItems.AddRange(optionals.ToArray());
menu.MenuItems.Add(mnuSelectAll);
menu.MenuItems.Add("-");
menu.MenuItems.Add(mnuViewSource);
menu.MenuItems.Add(mnuProperties);
}
// get image urls
Uri backgroundImageSrc = null, imageSrc = null;
nsIURI src;
if (info.GetBackgroundImageSrc(out src) == 0)
{
backgroundImageSrc = new Uri(new nsURI(src).Spec);
}
if (info.GetImageSrc(out src) == 0)
{
imageSrc = new Uri(new nsURI(src).Spec);
}
// get associated link. note that this needs to be done manually because GetAssociatedLink returns a non-zero
// result when no associated link is available, so an exception would be thrown by nsString.Get()
string associatedLink = null;
using (nsAString str = new nsAString())
{
if (info.GetAssociatedLink(str) == 0)
{
associatedLink = str.ToString();
}
}
GeckoContextMenuEventArgs e = new GeckoContextMenuEventArgs(
PointToClient(MousePosition), menu, associatedLink, backgroundImageSrc, imageSrc,
GeckoNode.Create(Xpcom.QueryInterface<nsIDOMNode>(info.GetTargetNode()))
);
OnShowContextMenu(e);
if (e.ContextMenu != null && e.ContextMenu.MenuItems.Count > 0)
{
e.ContextMenu.Show(this, e.Location);
}
}
