зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.9 KiB
C++
85 строки
2.9 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <pavlov@netscape.com>
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* Mike Pinkerton <pinkerton@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "WidgetUtils.h"
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#include "nsIBaseWindow.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIDocShell.h"
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#include "nsIInterfaceRequestorUtils.h"
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namespace mozilla {
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namespace widget {
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//static
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already_AddRefed<nsIWidget>
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WidgetUtils::DOMWindowToWidget(nsIDOMWindow *aDOMWindow)
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{
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nsCOMPtr<nsIWidget> widget;
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nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aDOMWindow);
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if (window) {
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nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(window->GetDocShell()));
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while (!widget && baseWin) {
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baseWin->GetParentWidget(getter_AddRefs(widget));
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if (!widget) {
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nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(baseWin));
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if (!docShellAsItem)
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return nsnull;
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nsCOMPtr<nsIDocShellTreeItem> parent;
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docShellAsItem->GetParent(getter_AddRefs(parent));
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window = do_GetInterface(parent);
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if (!window)
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return nsnull;
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baseWin = do_QueryInterface(window->GetDocShell());
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}
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}
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}
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return widget.forget();
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}
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} // namespace widget
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} // namespace mozilla
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