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			712 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			712 lines
		
	
	
	
		
			25 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
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|  * Netscape Communications Corporation.
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|  * Portions created by the Initial Developer are Copyright (C) 1998
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|  * the Initial Developer. All Rights Reserved.
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|  *
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|  * Contributor(s):
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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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| 
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| #include "nsHTMLButtonControlFrame.h"
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| 
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| #include "nsCOMPtr.h"
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| #include "nsHTMLContainerFrame.h"
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| #include "nsFormControlHelper.h"
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| #include "nsIFormControlFrame.h"
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| #include "nsHTMLParts.h"
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| #include "nsIFormControl.h"
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| 
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| #include "nsIRenderingContext.h"
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| #include "nsPresContext.h"
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| #include "nsIPresShell.h"
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| #include "nsStyleContext.h"
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| #include "nsLeafFrame.h"
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| #include "nsCSSRendering.h"
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| #include "nsISupports.h"
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| #include "nsHTMLAtoms.h"
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| #include "nsCSSAnonBoxes.h"
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| #include "nsIImage.h"
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| #include "nsStyleConsts.h"
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| #include "nsIHTMLContent.h"
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| #include "nsIWidget.h"
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| #include "nsIComponentManager.h"
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| #include "nsIDocument.h"
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| #include "nsButtonFrameRenderer.h"
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| #include "nsFormControlFrame.h"
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| #include "nsFrameManager.h"
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| #include "nsINameSpaceManager.h"
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| #include "nsReflowPath.h"
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| #include "nsIServiceManager.h"
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| #include "nsIDOMHTMLButtonElement.h"
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| #include "nsIDOMHTMLInputElement.h"
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| #include "nsStyleSet.h"
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| #ifdef ACCESSIBILITY
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| #include "nsIAccessibilityService.h"
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| #endif
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| 
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| nsresult
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| NS_NewHTMLButtonControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
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| {
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|   NS_PRECONDITION(aNewFrame, "null OUT ptr");
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|   if (nsnull == aNewFrame) {
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|     return NS_ERROR_NULL_POINTER;
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|   }
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|   nsHTMLButtonControlFrame* it = new (aPresShell) nsHTMLButtonControlFrame;
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|   if (!it) {
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|     return NS_ERROR_OUT_OF_MEMORY;
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|   }
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|   *aNewFrame = it;
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|   return NS_OK;
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| }
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| 
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| nsHTMLButtonControlFrame::nsHTMLButtonControlFrame()
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|   : nsHTMLContainerFrame()
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| {
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|   mInline = PR_TRUE;
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| 
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|   mCacheSize.width             = -1;
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|   mCacheSize.height            = -1;
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|   mCachedMaxElementWidth       = -1;
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| }
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| 
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| nsHTMLButtonControlFrame::~nsHTMLButtonControlFrame()
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| {
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::Destroy(nsPresContext *aPresContext)
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| {
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|   nsFormControlFrame::RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
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|   return nsHTMLContainerFrame::Destroy(aPresContext);
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::Init(nsPresContext*  aPresContext,
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|               nsIContent*      aContent,
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|               nsIFrame*        aParent,
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|               nsStyleContext*  aContext,
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|               nsIFrame*        aPrevInFlow)
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| {
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|   nsresult  rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
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|   mRenderer.SetFrame(this,aPresContext);
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|    // cache our display type
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|   mInline = (NS_STYLE_DISPLAY_BLOCK != GetStyleDisplay()->mDisplay);
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| 
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|   PRUint32 flags = NS_BLOCK_SPACE_MGR;
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|   if (mInline) {
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|     flags |= NS_BLOCK_SHRINK_WRAP;
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|   }
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| 
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|   nsIFrame* areaFrame;
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|   nsIPresShell *shell = aPresContext->PresShell();
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|   NS_NewAreaFrame(shell, &areaFrame, flags);
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|   mFrames.SetFrames(areaFrame);
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| 
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|   // Resolve style and initialize the frame
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|   nsRefPtr<nsStyleContext> styleContext;
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|   styleContext = shell->StyleSet()->ResolvePseudoStyleFor(mContent,
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|                                                           nsCSSAnonBoxes::buttonContent,
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|                                                           mStyleContext);
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|   mFrames.FirstChild()->Init(aPresContext, mContent, this, styleContext, nsnull);
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| 
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|   return rv;
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| }
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| 
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| nsrefcnt nsHTMLButtonControlFrame::AddRef(void)
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| {
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|   NS_WARNING("not supported");
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|   return 1;
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| }
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| 
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| nsrefcnt nsHTMLButtonControlFrame::Release(void)
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| {
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|   NS_WARNING("not supported");
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|   return 1;
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| }
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| 
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| // Frames are not refcounted, no need to AddRef
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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| {
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|   NS_PRECONDITION(0 != aInstancePtr, "null ptr");
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|   if (NULL == aInstancePtr) {
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|     return NS_ERROR_NULL_POINTER;
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|   }
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|   if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
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|     *aInstancePtr = (void*) ((nsIFormControlFrame*) this);
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|     return NS_OK;
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|   }
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| 
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|   return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr);
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| }
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| 
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| #ifdef ACCESSIBILITY
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| NS_IMETHODIMP nsHTMLButtonControlFrame::GetAccessible(nsIAccessible** aAccessible)
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| {
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|   nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
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| 
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|   if (accService) {
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|     nsIContent* content = GetContent();
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|     nsCOMPtr<nsIDOMHTMLButtonElement> buttonElement(do_QueryInterface(content));
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|     if (buttonElement) //If turned XBL-base form control off, the frame contains HTML 4 button
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|       return accService->CreateHTML4ButtonAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
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|     nsCOMPtr<nsIDOMHTMLInputElement> inputElement(do_QueryInterface(content));
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|     if (inputElement) //If turned XBL-base form control on, the frame contains normal HTML button
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|       return accService->CreateHTMLButtonAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
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|   }
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| 
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|   return NS_ERROR_FAILURE;
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| }
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| #endif
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| 
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| 
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| NS_IMETHODIMP_(PRInt32)
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| nsHTMLButtonControlFrame::GetFormControlType() const
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| {
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|   return nsFormControlHelper::GetType(mContent);
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::GetName(nsAString* aResult)
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| {
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|   return nsFormControlHelper::GetName(mContent, aResult);
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::GetValue(nsAString* aResult)
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| {
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|   return nsFormControlHelper::GetValueAttr(mContent, aResult);
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| }
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| 
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| void
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| nsHTMLButtonControlFrame::ReParentFrameList(nsFrameManager* aFrameManager,
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|                                             nsIFrame* aFrameList)
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| {
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|   // get the new parent context from the first child: that is the
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|   // frame that the subsequent children will be made children of
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|   nsStyleContext* newParentContext = mFrames.FirstChild()->GetStyleContext();
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| 
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|   // Set the parent for each of the child frames
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|   for (nsIFrame* frame = aFrameList; frame; frame = frame->GetNextSibling()) {
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|     frame->SetParent(mFrames.FirstChild());
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|     // now reparent the contexts for the reparented frame too
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|     aFrameManager->ReParentStyleContext(frame, newParentContext);
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|   }
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| 
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|   // Set NS_FRAME_HAS_CHILD_WITH_VIEW on the area frame if needed, bug 276236.
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|   mFrames.FirstChild()->AddStateBits(GetStateBits() & NS_FRAME_HAS_CHILD_WITH_VIEW);
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| }
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| 
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| PRBool
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| nsHTMLButtonControlFrame::IsReset(PRInt32 type)
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| {
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|   if (NS_FORM_BUTTON_RESET == type) {
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|     return PR_TRUE;
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|   } else {
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|     return PR_FALSE;
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|   }
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| }
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| 
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| PRBool
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| nsHTMLButtonControlFrame::IsSubmit(PRInt32 type)
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| {
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|   if (NS_FORM_BUTTON_SUBMIT == type) {
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|     return PR_TRUE;
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|   } else {
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|     return PR_FALSE;
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|   }
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| }
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| 
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| 
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| void
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| nsHTMLButtonControlFrame::MouseClicked(nsPresContext* aPresContext) 
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| {
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| // This is no longer called; click events are handled in
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| // nsHTMLInputElement::HandleDOMEvent().
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| }
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| 
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| void 
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| nsHTMLButtonControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
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| {
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| }
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| 
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| void
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| nsHTMLButtonControlFrame::ScrollIntoView(nsPresContext* aPresContext)
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| {
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|   if (aPresContext) {
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|     nsIPresShell *presShell = aPresContext->GetPresShell();
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|     if (presShell) {
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|      presShell->ScrollFrameIntoView(this,
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|                    NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
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| 
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|     }
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|   }
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::HandleEvent(nsPresContext* aPresContext, 
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|                                       nsGUIEvent*     aEvent,
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|                                       nsEventStatus*  aEventStatus)
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| {
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|   // if disabled do nothing
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|   if (mRenderer.isDisabled()) {
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|     return NS_OK;
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|   }
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| 
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|   // mouse clicks are handled by content
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|   // we don't want our children to get any events. So just pass it to frame.
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|   return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
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| }
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| 
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::GetFrameForPoint(const nsPoint& aPoint,
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|                                            nsFramePaintLayer aWhichLayer,
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|                                            nsIFrame** aFrame)
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| {
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|   if (aWhichLayer == NS_FRAME_PAINT_LAYER_FOREGROUND &&
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|       mRect.Contains(aPoint)) {
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|     if (GetStyleVisibility()->IsVisible()) {
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|       *aFrame = this;
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|       return NS_OK;
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|     }
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|   }
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|   return NS_ERROR_FAILURE;
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::SetInitialChildList(nsPresContext* aPresContext,
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|                                               nsIAtom*        aListName,
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|                                               nsIFrame*       aChildList)
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| {
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|   // NOTE: the whole reparenting should not need to happen: see bugzilla bug 51767
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|   ReParentFrameList(aPresContext->FrameManager(), aChildList);
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|   
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|   return mFrames.FirstChild()->SetInitialChildList(aPresContext, aListName, aChildList);
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| }
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| 
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| NS_IMETHODIMP
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| nsHTMLButtonControlFrame::Paint(nsPresContext*      aPresContext,
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|                                 nsIRenderingContext& aRenderingContext,
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|                                 const nsRect&        aDirtyRect,
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|                                 nsFramePaintLayer    aWhichLayer,
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|                                 PRUint32             aFlags)
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| {
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|   PRBool isVisible;
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|   if (aWhichLayer != NS_FRAME_PAINT_LAYER_FOREGROUND ||
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|       (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_TRUE, &isVisible)) && !isVisible)) {
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|     return NS_OK;
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|   }
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| 
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|   nsRect rect(0, 0, mRect.width, mRect.height);
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|   mRenderer.PaintButton(aPresContext, aRenderingContext, aDirtyRect, rect);
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| 
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| #if 0 // old way
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_BACKGROUND);
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_FLOATS);
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_FOREGROUND);
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| 
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| #else // temporary
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|     // XXX This is temporary
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|   // clips to it's size minus the border 
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|   // but the real problem is the FirstChild (the AreaFrame)
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|   // isn't being constrained properly
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|   // Bug #17474
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|   const nsStyleBorder* borderStyle = GetStyleBorder();
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|   nsMargin border;
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|   border.SizeTo(0, 0, 0, 0);
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|   borderStyle->CalcBorderFor(this, border);
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| 
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|   rect.Deflate(border);
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|   aRenderingContext.PushState();
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| 
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|   aRenderingContext.SetClipRect(rect, nsClipCombine_kIntersect);
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| 
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_BACKGROUND);
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_FLOATS);
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|   PaintChildren(aPresContext, aRenderingContext, aDirtyRect, NS_FRAME_PAINT_LAYER_FOREGROUND);
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| 
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|   aRenderingContext.PopState();
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| 
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| #endif
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| 
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|   // Paint outline
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|   const nsStyleOutline* outlineStyle = GetStyleOutline();
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|   nsCSSRendering::PaintOutline(aPresContext, aRenderingContext, this,
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|                                aDirtyRect, rect, *borderStyle, *outlineStyle,
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|                                mStyleContext, 0);
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| 
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|   // to draw border when selected in editor
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|   return nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
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| }
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| 
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| NS_IMETHODIMP 
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| nsHTMLButtonControlFrame::AddComputedBorderPaddingToDesiredSize(nsHTMLReflowMetrics& aDesiredSize,
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|                                                                 const nsHTMLReflowState& aSuggestedReflowState)
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| {
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|   aDesiredSize.width  += aSuggestedReflowState.mComputedBorderPadding.left + aSuggestedReflowState.mComputedBorderPadding.right;
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|   aDesiredSize.height += aSuggestedReflowState.mComputedBorderPadding.top + aSuggestedReflowState.mComputedBorderPadding.bottom;
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|   return NS_OK;
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| }
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| 
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| NS_IMETHODIMP 
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| nsHTMLButtonControlFrame::Reflow(nsPresContext* aPresContext,
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|                                nsHTMLReflowMetrics& aDesiredSize,
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|                                const nsHTMLReflowState& aReflowState,
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|                                nsReflowStatus& aStatus)
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| {
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|   DO_GLOBAL_REFLOW_COUNT("nsHTMLButtonControlFrame", aReflowState.reason);
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|   DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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| 
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|   if (eReflowReason_Initial == aReflowState.reason) {
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|     nsFormControlFrame::RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_TRUE);
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|   }
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| 
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| #if 0
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|   nsresult skiprv = nsFormControlFrame::SkipResizeReflow(mCacheSize, mCachedMaxElementWidth, aPresContext, 
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|                                                          aDesiredSize, aReflowState, aStatus);
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|   if (NS_SUCCEEDED(skiprv)) {
 | |
|     return skiprv;
 | |
|   }
 | |
| #endif
 | |
| 
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|   // Reflow the child
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|   nsIFrame* firstKid = mFrames.FirstChild();
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|   nsSize availSize(aReflowState.mComputedWidth, NS_INTRINSICSIZE);
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| 
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|   // Indent the child inside us by the the focus border. We must do this separate from the
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|   // regular border.
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|   nsMargin focusPadding = mRenderer.GetAddedButtonBorderAndPadding();
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| 
 | |
|   
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|   if (NS_INTRINSICSIZE != availSize.width) {
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|     availSize.width -= focusPadding.left + focusPadding.right;
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|     availSize.width = PR_MAX(availSize.width,0);
 | |
|   }
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|   if (NS_AUTOHEIGHT != availSize.height) {
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|     availSize.height -= focusPadding.top + focusPadding.bottom;
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|     availSize.height = PR_MAX(availSize.height,0);
 | |
|   }
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|   
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|   // XXX Proper handling of incremental reflow...
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|   nsReflowReason reason = aReflowState.reason;
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|   if (eReflowReason_Incremental == reason) {
 | |
|     // See if it's targeted at us
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|     nsHTMLReflowCommand *command = aReflowState.path->mReflowCommand;
 | |
|     if (command) {
 | |
|       // I'm not sure what exactly this Invalidate is for
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|       Invalidate(nsRect(0,0,mRect.width,mRect.height), PR_FALSE);
 | |
| 
 | |
|       nsReflowType  reflowType;
 | |
|       command->GetType(reflowType);
 | |
|       if (eReflowType_StyleChanged == reflowType) {
 | |
|         reason = eReflowReason_StyleChange;
 | |
|       }
 | |
|       else {
 | |
|         reason = eReflowReason_Resize;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   // Reflow the contents of the button a first time.
 | |
|   ReflowButtonContents(aPresContext, aDesiredSize, aReflowState, firstKid,
 | |
|                        availSize, reason, focusPadding, aStatus);
 | |
| 
 | |
|   // If we just performed the first pass of a shrink-wrap reflow (which will have
 | |
|   // found the requested size of the children, but not placed them), perform
 | |
|   // the second pass of a shrink-wrap reflow (which places the children
 | |
|   // within this parent button which has now shrink-wrapped around them).
 | |
|   if (availSize.width == NS_SHRINKWRAPWIDTH) {
 | |
|     nsSize newAvailSize(aDesiredSize.width, NS_INTRINSICSIZE);
 | |
| 
 | |
|     ReflowButtonContents(aPresContext, aDesiredSize, aReflowState, firstKid,
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|                          newAvailSize, eReflowReason_Resize, focusPadding, aStatus);
 | |
|   }
 | |
| 
 | |
|   // If computed use the computed values.
 | |
|   if (aReflowState.mComputedWidth != NS_INTRINSICSIZE) 
 | |
|     aDesiredSize.width = aReflowState.mComputedWidth;
 | |
|   else 
 | |
|     aDesiredSize.width  += focusPadding.left + focusPadding.right;
 | |
| 
 | |
|   if (aReflowState.mComputedHeight != NS_INTRINSICSIZE) 
 | |
|     aDesiredSize.height = aReflowState.mComputedHeight;
 | |
|   else
 | |
|     aDesiredSize.height += focusPadding.top + focusPadding.bottom;
 | |
| 
 | |
|   AddComputedBorderPaddingToDesiredSize(aDesiredSize, aReflowState);
 | |
| 
 | |
|   //aDesiredSize.width  += aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right;
 | |
|   //aDesiredSize.height += aReflowState.mComputedBorderPadding.top + aReflowState.mComputedBorderPadding.bottom;
 | |
| 
 | |
|   if (aDesiredSize.mComputeMEW) {
 | |
|     aDesiredSize.SetMEWToActualWidth(aReflowState.mStylePosition->mWidth.GetUnit());
 | |
|   }
 | |
| 
 | |
|   // Make sure we obey min/max-width and min/max-height
 | |
|   if (aDesiredSize.width > aReflowState.mComputedMaxWidth) {
 | |
|     aDesiredSize.width = aReflowState.mComputedMaxWidth;
 | |
|   }
 | |
|   if (aDesiredSize.width < aReflowState.mComputedMinWidth) {
 | |
|     aDesiredSize.width = aReflowState.mComputedMinWidth;
 | |
|   } 
 | |
| 
 | |
|   if (aDesiredSize.height > aReflowState.mComputedMaxHeight) {
 | |
|     aDesiredSize.height = aReflowState.mComputedMaxHeight;
 | |
|   }
 | |
|   if (aDesiredSize.height < aReflowState.mComputedMinHeight) {
 | |
|     aDesiredSize.height = aReflowState.mComputedMinHeight;
 | |
|   }
 | |
| 
 | |
|   aDesiredSize.ascent  += aReflowState.mComputedBorderPadding.top + focusPadding.top;
 | |
|   aDesiredSize.descent = aDesiredSize.height - aDesiredSize.ascent;
 | |
| 
 | |
|   nsRect buttonRect(0, 0, aDesiredSize.width, aDesiredSize.height);
 | |
|   FinishAndStoreOverflow(&buttonRect, buttonRect.Size());
 | |
| 
 | |
|   aStatus = NS_FRAME_COMPLETE;
 | |
| 
 | |
|   nsFormControlFrame::SetupCachedSizes(mCacheSize, mCachedAscent,
 | |
|                                        mCachedMaxElementWidth, aDesiredSize);
 | |
|   NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsHTMLButtonControlFrame::ReflowButtonContents(nsPresContext* aPresContext,
 | |
|                                                nsHTMLReflowMetrics& aDesiredSize,
 | |
|                                                const nsHTMLReflowState& aReflowState,
 | |
|                                                nsIFrame* aFirstKid,
 | |
|                                                const nsSize& aAvailSize,
 | |
|                                                nsReflowReason aReason,
 | |
|                                                nsMargin aFocusPadding,
 | |
|                                                nsReflowStatus& aStatus)
 | |
| {
 | |
|   nsHTMLReflowState reflowState(aPresContext, aReflowState, aFirstKid, aAvailSize, aReason);
 | |
| 
 | |
|   ReflowChild(aFirstKid, aPresContext, aDesiredSize, reflowState,
 | |
|               aFocusPadding.left + aReflowState.mComputedBorderPadding.left,
 | |
|               aFocusPadding.top + aReflowState.mComputedBorderPadding.top,
 | |
|               0, aStatus);
 | |
|   
 | |
|   // calculate the min internal size so the contents gets centered correctly
 | |
|   // minInternalWidth is not being used at all and causes a warning--commenting
 | |
|   // out until someone wants it.
 | |
|   //  nscoord minInternalWidth  = aReflowState.mComputedMinWidth  == 0?0:aReflowState.mComputedMinWidth - 
 | |
|   //    (aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right);
 | |
|   nscoord minInternalHeight = aReflowState.mComputedMinHeight == 0?0:aReflowState.mComputedMinHeight - 
 | |
|     (aReflowState.mComputedBorderPadding.top + aReflowState.mComputedBorderPadding.bottom);
 | |
| 
 | |
|   // center child vertically
 | |
|   nscoord yoff = 0;
 | |
|   if (aReflowState.mComputedHeight != NS_INTRINSICSIZE) {
 | |
|     yoff = (aReflowState.mComputedHeight - aDesiredSize.height)/2;
 | |
|     if (yoff < 0) {
 | |
|       yoff = 0;
 | |
|     }
 | |
|   } else if (aDesiredSize.height < minInternalHeight) {
 | |
|     yoff = (minInternalHeight - aDesiredSize.height) / 2;
 | |
|   }
 | |
| 
 | |
|   // Adjust the ascent by our offset (since we moved the child's
 | |
|   // baseline by that much).
 | |
|   aDesiredSize.ascent += yoff;
 | |
|   
 | |
|   // Place the child.  If we have a non-intrinsic width, we want to
 | |
|   // reduce the left padding as needed to try and fit the text in the
 | |
|   // button
 | |
|   nscoord xoffset = aFocusPadding.left + aReflowState.mComputedBorderPadding.left;
 | |
|   if (aReflowState.mComputedWidth != NS_INTRINSICSIZE) {
 | |
|     // First, how much did we "overflow"?  This is the width of our
 | |
|     // kid plus our special focus stuff (which did not get accounted
 | |
|     // for in calculating aReflowState.mComputedWidth minus the width
 | |
|     // we're forced to be.
 | |
|     nscoord extrawidth =
 | |
|       aDesiredSize.width + aFocusPadding.left + aFocusPadding.right
 | |
|       - aReflowState.mComputedWidth;
 | |
|     if (extrawidth > 0) {
 | |
|       // Split it evenly between right and left
 | |
|       extrawidth /= 2;
 | |
|       // But do not shoot out the left side of the button, please
 | |
|       extrawidth = PR_MIN(extrawidth, aReflowState.mComputedPadding.left);
 | |
|       xoffset -= extrawidth;
 | |
|     }
 | |
|   }
 | |
|   
 | |
|   // Place the child
 | |
|   FinishReflowChild(aFirstKid, aPresContext, &reflowState, aDesiredSize,
 | |
|                     xoffset,
 | |
|                     yoff + aFocusPadding.top + aReflowState.mComputedBorderPadding.top, 0);
 | |
| }
 | |
| 
 | |
| /* virtual */ PRBool
 | |
| nsHTMLButtonControlFrame::IsContainingBlock() const
 | |
| {
 | |
|   return PR_TRUE;
 | |
| }
 | |
| 
 | |
| PRIntn
 | |
| nsHTMLButtonControlFrame::GetSkipSides() const
 | |
| {
 | |
|   return 0;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsHTMLButtonControlFrame::GetFormContent(nsIContent*& aContent) const
 | |
| {
 | |
|   aContent = GetContent();
 | |
|   NS_IF_ADDREF(aContent);
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| nscoord 
 | |
| nsHTMLButtonControlFrame::GetVerticalInsidePadding(nsPresContext* aPresContext,
 | |
|                                                    float aPixToTwip, 
 | |
|                                                    nscoord aInnerHeight) const
 | |
| {
 | |
|    return 0;
 | |
| }
 | |
| 
 | |
| nscoord 
 | |
| nsHTMLButtonControlFrame::GetHorizontalInsidePadding(nsPresContext* aPresContext,
 | |
|                                                float aPixToTwip, 
 | |
|                                                nscoord aInnerWidth,
 | |
|                                                nscoord aCharWidth) const
 | |
| {
 | |
|   return 0;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP nsHTMLButtonControlFrame::SetProperty(nsPresContext* aPresContext,
 | |
|                                                     nsIAtom* aName, const nsAString& aValue)
 | |
| {
 | |
|   if (nsHTMLAtoms::value == aName) {
 | |
|     nsCOMPtr<nsIHTMLContent> formControl(do_QueryInterface(mContent));
 | |
|     if (formControl) {
 | |
|       return formControl->SetAttr(kNameSpaceID_None, nsHTMLAtoms::value, aValue, PR_TRUE);
 | |
|     }
 | |
|   }
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP nsHTMLButtonControlFrame::GetProperty(nsIAtom* aName, nsAString& aValue)
 | |
| {
 | |
|   if (nsHTMLAtoms::value == aName) {
 | |
|     nsCOMPtr<nsIHTMLContent> formControl(do_QueryInterface(mContent));
 | |
|     if (formControl) {
 | |
|       formControl->GetAttr(kNameSpaceID_None, nsHTMLAtoms::value, aValue);
 | |
|     }
 | |
|   }
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| nsStyleContext*
 | |
| nsHTMLButtonControlFrame::GetAdditionalStyleContext(PRInt32 aIndex) const
 | |
| {
 | |
|   return mRenderer.GetStyleContext(aIndex);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsHTMLButtonControlFrame::SetAdditionalStyleContext(PRInt32 aIndex, 
 | |
|                                                     nsStyleContext* aStyleContext)
 | |
| {
 | |
|   mRenderer.SetStyleContext(aIndex, aStyleContext);
 | |
| }
 | |
| 
 | |
| 
 | |
| NS_IMETHODIMP nsHTMLButtonControlFrame::SetSuggestedSize(nscoord aWidth, nscoord aHeight)
 | |
| {
 | |
| //  mSuggestedWidth = aWidth;
 | |
| //  mSuggestedHeight = aHeight;
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| 
 | |
| 
 | |
| NS_IMETHODIMP 
 | |
| nsHTMLButtonControlFrame::AppendFrames(nsPresContext* aPresContext,
 | |
|                                        nsIPresShell&   aPresShell,
 | |
|                                        nsIAtom*        aListName,
 | |
|                                        nsIFrame*       aFrameList)
 | |
| {
 | |
|   ReParentFrameList(aPresContext->FrameManager(), aFrameList);
 | |
|   return mFrames.FirstChild()->AppendFrames(aPresContext,
 | |
|                                             aPresShell,
 | |
|                                             aListName,
 | |
|                                             aFrameList);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsHTMLButtonControlFrame::InsertFrames(nsPresContext* aPresContext,
 | |
|                                        nsIPresShell&   aPresShell,
 | |
|                                        nsIAtom*        aListName,
 | |
|                                        nsIFrame*       aPrevFrame,
 | |
|                                        nsIFrame*       aFrameList)
 | |
| {
 | |
|   ReParentFrameList(aPresContext->FrameManager(), aFrameList);
 | |
|   return mFrames.FirstChild()->InsertFrames(aPresContext,
 | |
|                                             aPresShell,
 | |
|                                             aListName,
 | |
|                                             aPrevFrame,
 | |
|                                             aFrameList);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsHTMLButtonControlFrame::RemoveFrame(nsPresContext* aPresContext,
 | |
|                                       nsIPresShell&   aPresShell,
 | |
|                                       nsIAtom*        aListName,
 | |
|                                       nsIFrame*       aOldFrame)
 | |
| {
 | |
|   return mFrames.FirstChild()->RemoveFrame(aPresContext,
 | |
|                                            aPresShell,
 | |
|                                            aListName,
 | |
|                                            aOldFrame);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsHTMLButtonControlFrame::ReplaceFrame(nsPresContext* aPresContext,
 | |
|                                        nsIPresShell&   aPresShell,
 | |
|                                        nsIAtom*        aListName,
 | |
|                                        nsIFrame*       aOldFrame,
 | |
|                                        nsIFrame*       aNewFrame)
 | |
| {
 | |
|   ReParentFrameList(aPresContext->FrameManager(), aNewFrame);
 | |
|   return mFrames.FirstChild()->ReplaceFrame(aPresContext,
 | |
|                                             aPresShell,
 | |
|                                             aListName,
 | |
|                                             aOldFrame,
 | |
|                                             aNewFrame);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsHTMLButtonControlFrame::OnContentReset()
 | |
| {
 | |
|   return NS_OK;
 | |
| }
 | 
