mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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24e7cb1f78
* we know all types frames may be cast to at compile time, so instead of extensible GUID IIDs, use a big enum (see nsQueryFrame::FrameIID) * eliminate all vestiges of refcounting, since frames aren't refcounted Some frames (SVG frames in particular) still implement nsISupports-derived interfaces, for example nsISVGValue. There is a FrameIID for nsISVGValue that lets you go from a frame to the XPCOM interface, but you can't query back. r+sr=roc nsITextControlFrame didn't have an IID the first time around, but this wasn't a compile error because nsITextControlFrame::kFrameIID inherited from nsIFormControlFrame::kFrameIID. I've added a static analysis pass to verify the correct behavior, since I can't figure out a way to make the compiler do it. --HG-- extra : rebase_source : 4894a2ca0278e2ab92f27459db77165f8348cf41
134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 Mozilla.org code.
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*
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* The Initial Developer of the Original Code is Mozilla.org.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Olli Pettay <Olli.Pettay@helsinki.fi> (Original Author)
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 "nsCOMPtr.h"
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#include "nsIContainerBoxObject.h"
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#include "nsIBrowserBoxObject.h"
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#include "nsIEditorBoxObject.h"
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#include "nsIIFrameBoxObject.h"
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#include "nsBoxObject.h"
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#include "nsIDocShell.h"
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#include "nsIContent.h"
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#include "nsIDocument.h"
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#include "nsIFrame.h"
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#include "nsIFrameFrame.h"
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/**
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* nsContainerBoxObject implements deprecated nsIBrowserBoxObject,
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* nsIEditorBoxObject and nsIIFrameBoxObject interfaces only because of the
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* backward compatibility.
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*/
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class nsContainerBoxObject : public nsBoxObject,
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public nsIBrowserBoxObject,
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public nsIEditorBoxObject,
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public nsIIFrameBoxObject
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSICONTAINERBOXOBJECT
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NS_DECL_NSIBROWSERBOXOBJECT
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NS_DECL_NSIEDITORBOXOBJECT
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NS_DECL_NSIIFRAMEBOXOBJECT
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};
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NS_INTERFACE_MAP_BEGIN(nsContainerBoxObject)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContainerBoxObject, nsIBrowserBoxObject)
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NS_INTERFACE_MAP_ENTRY(nsIBrowserBoxObject)
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NS_INTERFACE_MAP_ENTRY(nsIEditorBoxObject)
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NS_INTERFACE_MAP_ENTRY(nsIIFrameBoxObject)
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NS_INTERFACE_MAP_END_INHERITING(nsBoxObject)
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NS_IMPL_ADDREF_INHERITED(nsContainerBoxObject, nsBoxObject)
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NS_IMPL_RELEASE_INHERITED(nsContainerBoxObject, nsBoxObject)
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NS_IMETHODIMP nsContainerBoxObject::GetDocShell(nsIDocShell** aResult)
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{
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*aResult = nsnull;
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nsIFrame *frame = GetFrame(PR_FALSE);
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if (frame) {
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nsIFrameFrame *frame_frame = do_QueryFrame(frame);
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if (frame_frame) {
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// Ok, the frame for mContent is a nsIFrameFrame, it knows how
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// to reach the docshell, so ask it...
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return frame_frame->GetDocShell(aResult);
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}
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}
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if (!mContent) {
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return NS_OK;
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}
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// No nsIFrameFrame available for mContent, try if there's a mapping
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// between mContent's document to mContent's subdocument.
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// XXXbz sXBL/XBL2 issue -- ownerDocument or currentDocument?
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nsIDocument *doc = mContent->GetDocument();
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if (!doc) {
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return NS_OK;
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}
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nsIDocument *sub_doc = doc->GetSubDocumentFor(mContent);
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if (!sub_doc) {
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return NS_OK;
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}
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nsCOMPtr<nsISupports> container = sub_doc->GetContainer();
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if (!container) {
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return NS_OK;
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}
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return CallQueryInterface(container, aResult);
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}
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nsresult
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NS_NewContainerBoxObject(nsIBoxObject** aResult)
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{
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*aResult = new nsContainerBoxObject();
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if (!*aResult)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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