gecko-dev/layout/forms/nsProgressFrame.h

121 строка
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 Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mounir Lamouri <mounir.lamouri@mozilla.com> (original author)
*
* 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 ***** */
#ifndef nsProgressFrame_h___
#define nsProgressFrame_h___
#include "nsContainerFrame.h"
#include "nsIAnonymousContentCreator.h"
#include "nsCOMPtr.h"
class nsBaseContentList;
class nsProgressFrame : public nsContainerFrame,
public nsIAnonymousContentCreator
{
public:
NS_DECL_QUERYFRAME_TARGET(nsProgressFrame)
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
nsProgressFrame(nsStyleContext* aContext);
virtual ~nsProgressFrame();
virtual void DestroyFrom(nsIFrame* aDestructRoot);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
NS_IMETHOD Reflow(nsPresContext* aCX,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
#ifdef NS_DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const {
return MakeFrameName(NS_LITERAL_STRING("Progress"), aResult);
}
#endif
virtual bool IsLeaf() const { return true; }
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
PRUint32 aFilter);
NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext,
nsSize aCBSize, nscoord aAvailableWidth,
nsSize aMargin, nsSize aBorder,
nsSize aPadding, bool aShrinkWrap);
virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext);
virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext);
virtual bool IsFrameOfType(PRUint32 aFlags) const
{
return nsContainerFrame::IsFrameOfType(aFlags &
~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
}
/**
* Returns whether the frame and its child should use the native style.
*/
bool ShouldUseNativeStyle() const;
protected:
// Helper function which reflow the anonymous div frame.
void ReflowBarFrame(nsIFrame* aBarFrame,
nsPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/**
* The div used to show the progress bar.
* @see nsProgressFrame::CreateAnonymousContent
*/
nsCOMPtr<nsIContent> mBarDiv;
};
#endif