gecko-dev/layout/generic/nsHTMLContainerFrame.cpp

122 lines
4.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Ventnor <m.ventnor@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* base class #2 for rendering objects that have child lists */
#include "nsHTMLContainerFrame.h"
#include "nsFirstLetterFrame.h"
#include "nsRenderingContext.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIContent.h"
#include "nsGkAtoms.h"
#include "nsLayoutUtils.h"
#include "nsCSSAnonBoxes.h"
#include "nsILinkHandler.h"
#include "nsGUIEvent.h"
#include "nsIDocument.h"
#include "nsIURL.h"
#include "nsPlaceholderFrame.h"
#include "nsHTMLParts.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsIDOMEvent.h"
#include "nsWidgetsCID.h"
#include "nsCOMPtr.h"
#include "gfxFont.h"
#include "nsCSSFrameConstructor.h"
#include "nsDisplayList.h"
#include "nsBlockFrame.h"
#include "nsLineBox.h"
#include "nsDisplayList.h"
#include "nsCSSRendering.h"
NS_IMETHODIMP
nsHTMLContainerFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) {
nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
rv = BuildDisplayListForNonBlockChildren(aBuilder, aDirtyRect, aLists,
DISPLAY_CHILD_INLINE);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
* Create a next-in-flow for aFrame. Will return the newly created
* frame in aNextInFlowResult <b>if and only if</b> a new frame is
* created; otherwise nsnull is returned in aNextInFlowResult.
*/
nsresult
nsHTMLContainerFrame::CreateNextInFlow(nsPresContext* aPresContext,
nsIFrame* aFrame,
nsIFrame*& aNextInFlowResult)
{
NS_PRECONDITION(GetType() != nsGkAtoms::blockFrame,
"you should have called nsBlockFrame::CreateContinuationFor instead");
NS_PRECONDITION(mFrames.ContainsFrame(aFrame), "expected an in-flow child frame");
aNextInFlowResult = nsnull;
nsIFrame* nextInFlow = aFrame->GetNextInFlow();
if (nsnull == nextInFlow) {
// Create a continuation frame for the child frame and insert it
// into our child list.
nsresult rv = aPresContext->PresShell()->FrameConstructor()->
CreateContinuingFrame(aPresContext, aFrame, this, &nextInFlow);
if (NS_FAILED(rv)) {
return rv;
}
mFrames.InsertFrame(nsnull, aFrame, nextInFlow);
NS_FRAME_LOG(NS_FRAME_TRACE_NEW_FRAMES,
("nsHTMLContainerFrame::CreateNextInFlow: frame=%p nextInFlow=%p",
aFrame, nextInFlow));
aNextInFlowResult = nextInFlow;
}
return NS_OK;
}
NS_IMPL_FRAMEARENA_HELPERS(nsHTMLContainerFrame)