зеркало из https://github.com/mozilla/gecko-dev.git
644 строки
19 KiB
C++
644 строки
19 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsCOMPtr.h"
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#include "nsFormControlFrame.h"
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#include "nsHTMLParts.h"
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#include "nsIHTMLContent.h"
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#include "nsIRenderingContext.h"
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#include "nsIPresShell.h"
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#include "nsIPresContext.h"
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#include "nsIStyleContext.h"
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#include "nsLeafFrame.h"
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#include "nsCSSRendering.h"
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#include "nsHTMLIIDs.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsCoord.h"
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#include "nsWidgetsCID.h"
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#include "nsViewsCID.h"
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#include "nsIComponentManager.h"
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#include "nsGUIEvent.h"
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#include "nsDOMEvent.h"
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#include "nsIFontMetrics.h"
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#include "nsIFormControl.h"
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#include "nsIDeviceContext.h"
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#include "nsHTMLAtoms.h"
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#include "nsIButton.h" // remove this when GetCID is pure virtual
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#include "nsICheckButton.h" //remove this
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#include "nsITextWidget.h" //remove this
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#include "nsISupports.h"
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#include "nsStyleConsts.h"
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#include "nsUnitConversion.h"
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#include "nsStyleUtil.h"
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#include "nsFormFrame.h"
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#include "nsIContent.h"
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#include "nsStyleUtil.h"
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#include "nsINameSpaceManager.h"
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#include "nsIDOMHTMLInputElement.h"
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static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
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static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID);
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static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
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static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
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static NS_DEFINE_IID(kIDOMHTMLInputElementIID, NS_IDOMHTMLINPUTELEMENT_IID);
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nsFormControlFrame::nsFormControlFrame()
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: nsLeafFrame()
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{
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mDidInit = PR_FALSE;
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mFormFrame = nsnull;
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mSuggestedWidth = NS_FORMSIZE_NOTSET;
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mSuggestedHeight = NS_FORMSIZE_NOTSET;
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// Reflow Optimization
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mCacheSize.width = -1;
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mCacheSize.height = -1;
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mCachedMaxElementSize.width = -1;
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mCachedMaxElementSize.height = -1;
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}
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nsFormControlFrame::~nsFormControlFrame()
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{
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if (mFormFrame) {
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mFormFrame->RemoveFormControlFrame(*this);
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// This method only removes from radio lists if we are a radio input
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mFormFrame->RemoveRadioControlFrame(this);
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mFormFrame = nsnull;
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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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nsFormControlFrame::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(kIFormControlFrameIID)) {
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*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
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return NS_OK;
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}
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return nsLeafFrame::QueryInterface(aIID, aInstancePtr);
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}
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void nsFormControlFrame::SetupCachedSizes(nsSize& aCacheSize,
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nsSize& aCachedMaxElementSize,
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nsHTMLReflowMetrics& aDesiredSize)
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{
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aCacheSize.width = aDesiredSize.width;
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aCacheSize.height = aDesiredSize.height;
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if (aDesiredSize.maxElementSize != nsnull) {
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aCachedMaxElementSize.width = aDesiredSize.maxElementSize->width;
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aCachedMaxElementSize.height = aDesiredSize.maxElementSize->height;
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}
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}
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nsresult nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
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nsSize& aCachedMaxElementSize,
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nsIPresContext* 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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#if 1
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if (aReflowState.reason == eReflowReason_Resize) {
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if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedWidth &&
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NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight) {
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if (aCacheSize.width > -1 && aCacheSize.height > -1) {
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aDesiredSize.width = aCacheSize.width;
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aDesiredSize.height = aCacheSize.height;
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if (aDesiredSize.maxElementSize != nsnull) {
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aDesiredSize.maxElementSize->width = aCachedMaxElementSize.width;
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aDesiredSize.maxElementSize->height = aCachedMaxElementSize.height;
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}
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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} else {
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if (aCacheSize.width == aReflowState.mComputedWidth &&
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aCacheSize.height == aReflowState.mComputedHeight) {
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aDesiredSize.width = aCacheSize.width;
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aDesiredSize.height = aCacheSize.height;
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if (aDesiredSize.maxElementSize != nsnull) {
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aDesiredSize.maxElementSize->width = aCachedMaxElementSize.width;
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aDesiredSize.maxElementSize->height = aCachedMaxElementSize.height;
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}
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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}
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}
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#endif
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return NS_ERROR_FAILURE;
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}
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nscoord
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nsFormControlFrame::GetScrollbarWidth(float aPixToTwip)
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{
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return NSIntPixelsToTwips(19, aPixToTwip); // XXX this is windows
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}
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nscoord
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nsFormControlFrame::GetVerticalBorderWidth(float aPixToTwip) const
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{
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return NSIntPixelsToTwips(3, aPixToTwip);
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}
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nscoord
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nsFormControlFrame::GetHorizontalBorderWidth(float aPixToTwip) const
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{
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return GetVerticalBorderWidth(aPixToTwip);
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}
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nscoord
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nsFormControlFrame::GetVerticalInsidePadding(nsIPresContext* aPresContext,
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float aPixToTwip,
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nscoord aInnerHeight) const
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{
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return NSIntPixelsToTwips(3, aPixToTwip);
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}
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nscoord
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nsFormControlFrame::GetHorizontalInsidePadding(nsIPresContext* aPresContext,
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float aPixToTwip,
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nscoord aInnerWidth,
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nscoord aCharWidth) const
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{
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return GetVerticalInsidePadding(aPresContext, aPixToTwip, aInnerWidth);
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}
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PRInt32
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nsFormControlFrame::GetMaxNumValues()
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{
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return 0;
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}
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PRBool
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nsFormControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames)
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{
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aNumValues = 0;
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return PR_FALSE;
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}
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void
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nsFormControlFrame::SetClickPoint(nscoord aX, nscoord aY)
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{
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mLastClickPoint.x = aX;
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mLastClickPoint.y = aY;
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}
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// XXX it would be cool if form element used our rendering sw, then
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// they could be blended, and bordered, and so on...
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NS_METHOD
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nsFormControlFrame::Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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return nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
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aWhichLayer);
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}
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void
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nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredLayoutSize,
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nsSize& aDesiredWidgetSize)
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{
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// get the css size and let the frame use or override it
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nsSize styleSize;
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GetStyleSize(aPresContext, aReflowState, styleSize);
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// subclasses should always override this method, but if not and no css, make it small
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aDesiredLayoutSize.width = (styleSize.width > CSS_NOTSET) ? styleSize.width : 144;
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aDesiredLayoutSize.height = (styleSize.height > CSS_NOTSET) ? styleSize.height : 144;
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aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
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aDesiredLayoutSize.descent = 0;
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if (aDesiredLayoutSize.maxElementSize) {
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aDesiredLayoutSize.maxElementSize->width = aDesiredLayoutSize.width;
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aDesiredLayoutSize.maxElementSize->height = aDesiredLayoutSize.height;
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}
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aDesiredWidgetSize.width = aDesiredLayoutSize.width;
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aDesiredWidgetSize.height = aDesiredLayoutSize.height;
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}
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void
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nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize)
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{
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nsSize ignore;
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GetDesiredSize(aPresContext, aReflowState, aDesiredSize, ignore);
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}
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NS_IMETHODIMP
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nsFormControlFrame::DidReflow(nsIPresContext* aPresContext,
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nsDidReflowStatus aStatus)
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{
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nsresult rv = nsLeafFrame::DidReflow(aPresContext, aStatus);
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// The view is created hidden; once we have reflowed it and it has been
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// positioned then we show it.
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if (NS_FRAME_REFLOW_FINISHED == aStatus) {
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nsIView* view = nsnull;
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GetView(aPresContext, &view);
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if (view) {
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const nsStyleDisplay* display;
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GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)display));
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nsViewVisibility newVis = NS_STYLE_VISIBILITY_VISIBLE == display->mVisible ? nsViewVisibility_kShow : nsViewVisibility_kHide;
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nsViewVisibility oldVis;
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// only change if different.
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view->GetVisibility(oldVis);
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if (newVis != oldVis)
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view->SetVisibility(newVis);
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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nsFormControlFrame::SetInitialChildList(nsIPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList)
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{
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return NS_OK;
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}
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NS_METHOD
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nsFormControlFrame::Reflow(nsIPresContext* 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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// add ourself as an nsIFormControlFrame
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if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
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nsFormFrame::AddFormControlFrame(aPresContext, *NS_STATIC_CAST(nsIFrame*, this));
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}
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nsresult skiprv = SkipResizeReflow(mCacheSize, mCachedMaxElementSize, aPresContext,
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aDesiredSize, aReflowState, aStatus);
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if (NS_SUCCEEDED(skiprv)) {
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return skiprv;
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}
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nsWidgetRendering mode;
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aPresContext->GetWidgetRenderingMode(&mode);
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if (eWidgetRendering_Native == mode) {
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GetDesiredSize(aPresContext, aReflowState, aDesiredSize, mWidgetSize);
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if (!mDidInit) {
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PostCreateWidget(aPresContext, aDesiredSize.width, aDesiredSize.height);
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mDidInit = PR_TRUE;
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}
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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} else {
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nsresult rv = nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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if (!mDidInit) {
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//GetDesiredSize(aPresContext, aReflowState, aDesiredSize);
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PostCreateWidget(aPresContext, aDesiredSize.width, aDesiredSize.height);
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mDidInit = PR_TRUE;
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}
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return rv;
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}
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aStatus = NS_FRAME_COMPLETE;
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SetupCachedSizes(mCacheSize, mCachedMaxElementSize, aDesiredSize);
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return NS_OK;
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}
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nsWidgetInitData*
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nsFormControlFrame::GetWidgetInitData(nsIPresContext* aPresContext)
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{
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return nsnull;
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}
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void
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nsFormControlFrame::PostCreateWidget(nsIPresContext* aPresContext, nscoord& aWidth, nscoord& aHeight)
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{
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}
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void
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nsFormControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
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{
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}
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void
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nsFormControlFrame::ScrollIntoView(nsIPresContext* aPresContext)
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{
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if (aPresContext) {
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nsCOMPtr<nsIPresShell> presShell;
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aPresContext->GetShell(getter_AddRefs(presShell));
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presShell->ScrollFrameIntoView(this,
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NS_PRESSHELL_SCROLL_ANYWHERE,NS_PRESSHELL_SCROLL_ANYWHERE);
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}
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}
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const nsIID&
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nsFormControlFrame::GetIID()
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{
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static NS_DEFINE_IID(kButtonIID, NS_IBUTTON_IID);
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return kButtonIID;
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}
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const nsIID&
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nsFormControlFrame::GetCID()
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{
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static NS_DEFINE_IID(kButtonCID, NS_BUTTON_CID);
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return kButtonCID;
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}
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NS_IMETHODIMP
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nsFormControlFrame::GetMaxLength(PRInt32* aSize)
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{
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*aSize = -1;
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nsresult result = NS_CONTENT_ATTR_NOT_THERE;
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nsIHTMLContent* content = nsnull;
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mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
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if (nsnull != content) {
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nsHTMLValue value;
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result = content->GetHTMLAttribute(nsHTMLAtoms::maxlength, value);
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if (eHTMLUnit_Integer == value.GetUnit()) {
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*aSize = value.GetIntValue();
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}
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NS_RELEASE(content);
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}
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return result;
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}
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nsresult
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nsFormControlFrame::GetSizeFromContent(PRInt32* aSize) const
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{
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*aSize = -1;
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nsresult result = NS_CONTENT_ATTR_NOT_THERE;
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nsIHTMLContent* content = nsnull;
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mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
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if (nsnull != content) {
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nsHTMLValue value;
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result = content->GetHTMLAttribute(nsHTMLAtoms::size, value);
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if (eHTMLUnit_Integer == value.GetUnit()) {
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*aSize = value.GetIntValue();
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}
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NS_RELEASE(content);
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}
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return result;
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}
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NS_IMETHODIMP
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nsFormControlFrame::GetType(PRInt32* aType) const
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{
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nsresult result = NS_FORM_NOTOK;
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if (mContent) {
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nsIFormControl* formControl = nsnull;
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result = mContent->QueryInterface(kIFormControlIID, (void**)&formControl);
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if ((NS_OK == result) && formControl) {
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result = formControl->GetType(aType);
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NS_RELEASE(formControl);
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}
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}
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return result;
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}
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NS_IMETHODIMP
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nsFormControlFrame::GetName(nsString* aResult)
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{
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nsresult result = NS_FORM_NOTOK;
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if (mContent) {
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nsIHTMLContent* formControl = nsnull;
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result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
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if ((NS_OK == result) && formControl) {
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nsHTMLValue value;
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result = formControl->GetHTMLAttribute(nsHTMLAtoms::name, value);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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if (eHTMLUnit_String == value.GetUnit()) {
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value.GetStringValue(*aResult);
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}
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}
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NS_RELEASE(formControl);
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}
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}
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return result;
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}
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NS_IMETHODIMP
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nsFormControlFrame::GetValue(nsString* aResult)
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{
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nsresult result = NS_FORM_NOTOK;
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if (mContent) {
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nsIHTMLContent* formControl = nsnull;
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result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
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if ((NS_OK == result) && formControl) {
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nsHTMLValue value;
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result = formControl->GetHTMLAttribute(nsHTMLAtoms::value, value);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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if (eHTMLUnit_String == value.GetUnit()) {
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value.GetStringValue(*aResult);
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}
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}
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NS_RELEASE(formControl);
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}
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}
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return result;
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}
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PRBool
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nsFormControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
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{
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nsAutoString name;
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// Since JS Submit() calls are not linked to an element, aSubmitter is null.
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// Return success to allow the call to go through.
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if (aSubmitter == nsnull) return PR_TRUE;
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return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
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}
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NS_METHOD
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nsFormControlFrame::HandleEvent(nsIPresContext* aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus* aEventStatus)
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{
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NS_ENSURE_ARG_POINTER(aEventStatus);
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if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
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|
return NS_OK;
|
|
}
|
|
|
|
// if not native then use the NS_MOUSE_LEFT_CLICK to see if pressed
|
|
// unfortunately native widgets don't seem to handle this right.
|
|
// so use the old code for native stuff. -EDV
|
|
switch (aEvent->message) {
|
|
case NS_MOUSE_LEFT_CLICK:
|
|
MouseClicked(aPresContext);
|
|
break;
|
|
|
|
case NS_KEY_DOWN:
|
|
if (NS_KEY_EVENT == aEvent->eventStructType) {
|
|
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
|
|
if (NS_VK_RETURN == keyEvent->keyCode) {
|
|
EnterPressed(aPresContext);
|
|
}
|
|
//else if (NS_VK_SPACE == keyEvent->keyCode) {
|
|
// MouseClicked(aPresContext);
|
|
//}
|
|
}
|
|
break;
|
|
}
|
|
|
|
*aEventStatus = nsEventStatus_eConsumeDoDefault;
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsFormControlFrame::GetStyleSize(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsSize& aSize)
|
|
{
|
|
if (aReflowState.mComputedWidth != NS_INTRINSICSIZE) {
|
|
aSize.width = aReflowState.mComputedWidth;
|
|
}
|
|
else {
|
|
aSize.width = CSS_NOTSET;
|
|
}
|
|
if (aReflowState.mComputedHeight != NS_INTRINSICSIZE) {
|
|
aSize.height = aReflowState.mComputedHeight;
|
|
}
|
|
else {
|
|
aSize.height = CSS_NOTSET;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsFormControlFrame::Reset(nsIPresContext* aPresContext)
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFormControlFrame::GetFormContent(nsIContent*& aContent) const
|
|
{
|
|
nsIContent* content;
|
|
nsresult rv;
|
|
|
|
rv = GetContent(&content);
|
|
aContent = content;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFormControlFrame::GetFont(nsIPresContext* aPresContext,
|
|
nsFont& aFont)
|
|
{
|
|
nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsFormControlFrame::GetDefaultCheckState(PRBool *aState)
|
|
{ nsresult res = NS_OK;
|
|
nsIDOMHTMLInputElement* inputElement;
|
|
if (NS_OK == mContent->QueryInterface(kIDOMHTMLInputElementIID, (void**)&inputElement)) {
|
|
res = inputElement->GetDefaultChecked(aState);
|
|
NS_RELEASE(inputElement);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
nsresult
|
|
nsFormControlFrame::SetDefaultCheckState(PRBool aState)
|
|
{
|
|
nsresult res = NS_OK;
|
|
nsIDOMHTMLInputElement* inputElement;
|
|
if (NS_OK == mContent->QueryInterface(kIDOMHTMLInputElementIID, (void**)&inputElement)) {
|
|
res = inputElement->SetDefaultChecked(aState);
|
|
NS_RELEASE(inputElement);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
nsresult
|
|
nsFormControlFrame::GetCurrentCheckState(PRBool *aState)
|
|
{
|
|
nsresult res = NS_OK;
|
|
nsIDOMHTMLInputElement* inputElement;
|
|
if (NS_OK == mContent->QueryInterface(kIDOMHTMLInputElementIID, (void**)&inputElement)) {
|
|
res = inputElement->GetChecked(aState);
|
|
NS_RELEASE(inputElement);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
nsresult
|
|
nsFormControlFrame::SetCurrentCheckState(PRBool aState)
|
|
{
|
|
nsresult res = NS_OK;
|
|
nsIDOMHTMLInputElement* inputElement;
|
|
if (NS_OK == mContent->QueryInterface(kIDOMHTMLInputElementIID, (void**)&inputElement)) {
|
|
inputElement->SetChecked(aState);
|
|
NS_RELEASE(inputElement);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFormControlFrame::SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFormControlFrame::GetProperty(nsIAtom* aName, nsString& aValue)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsFormControlFrame::RequiresWidget(PRBool & aRequiresWidget)
|
|
{
|
|
aRequiresWidget = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsFormControlFrame::SetSuggestedSize(nscoord aWidth, nscoord aHeight)
|
|
{
|
|
mSuggestedWidth = aWidth;
|
|
mSuggestedHeight = aHeight;
|
|
return NS_OK;
|
|
}
|
|
|