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pjs/layout/forms/nsHTMLButtonControlFrame.cpp

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26 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsHTMLButtonControlFrame.h"
#include "nsCOMPtr.h"
#include "nsHTMLContainerFrame.h"
#include "nsFormControlHelper.h"
#include "nsIFormControlFrame.h"
#include "nsHTMLParts.h"
#include "nsIFormControl.h"
#include "nsFormFrame.h"
#include "nsIRenderingContext.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsIStyleContext.h"
#include "nsLeafFrame.h"
#include "nsCSSRendering.h"
#include "nsHTMLIIDs.h"
#include "nsISupports.h"
#include "nsHTMLAtoms.h"
#include "nsIImage.h"
#include "nsStyleUtil.h"
#include "nsStyleConsts.h"
#include "nsIHTMLAttributes.h"
#include "nsIWidget.h"
#include "nsIComponentManager.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsViewsCID.h"
#include "nsColor.h"
#include "nsIDocument.h"
#include "nsButtonFrameRenderer.h"
#include "nsFormControlFrame.h"
#include "nsIFrameManager.h"
#include "nsINameSpaceManager.h"
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#endif
#if 0
// see nsHTMLButtonControlFrame::Reflow()
static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
#endif
nsresult
NS_NewHTMLButtonControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsHTMLButtonControlFrame* it = new (aPresShell) nsHTMLButtonControlFrame;
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
*aNewFrame = it;
return NS_OK;
}
nsHTMLButtonControlFrame::nsHTMLButtonControlFrame()
: nsHTMLContainerFrame()
{
mInline = PR_TRUE;
mPreviousCursor = eCursor_standard;
mTranslatedRect = nsRect(0,0,0,0);
mDidInit = PR_FALSE;
mRenderer.SetNameSpace(kNameSpaceID_None);
mCacheSize.width = -1;
mCacheSize.height = -1;
mCachedMaxElementSize.width = -1;
mCachedMaxElementSize.height = -1;
}
nsHTMLButtonControlFrame::~nsHTMLButtonControlFrame()
{
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::Destroy(nsIPresContext *aPresContext)
{
nsFormControlFrame::RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
if (mFormFrame) {
mFormFrame->RemoveFormControlFrame(*this);
mFormFrame = nsnull;
}
return nsHTMLContainerFrame::Destroy(aPresContext);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::Init(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow)
{
nsresult rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
mRenderer.SetFrame(this,aPresContext);
// cache our display type
const nsStyleDisplay* styleDisplay;
GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&) styleDisplay);
mInline = (NS_STYLE_DISPLAY_BLOCK != styleDisplay->mDisplay);
PRUint32 flags = NS_BLOCK_SPACE_MGR;
if (mInline) {
flags |= NS_BLOCK_SHRINK_WRAP;
}
nsCOMPtr<nsIPresShell> shell;
aPresContext->GetShell(getter_AddRefs(shell));
nsIFrame* areaFrame;
NS_NewAreaFrame(shell, &areaFrame, flags);
mFrames.SetFrames(areaFrame);
// Resolve style and initialize the frame
nsIStyleContext* styleContext;
aPresContext->ResolvePseudoStyleContextFor(mContent, nsHTMLAtoms::buttonContentPseudo,
mStyleContext, PR_FALSE,
&styleContext);
mFrames.FirstChild()->Init(aPresContext, mContent, this, styleContext, nsnull);
NS_RELEASE(styleContext);
return rv;
}
nsrefcnt nsHTMLButtonControlFrame::AddRef(void)
{
NS_WARNING("not supported");
return 1;
}
nsrefcnt nsHTMLButtonControlFrame::Release(void)
{
NS_WARNING("not supported");
return 1;
}
// Frames are not refcounted, no need to AddRef
NS_IMETHODIMP
nsHTMLButtonControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
return NS_OK;
}
return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr);
}
#ifdef ACCESSIBILITY
NS_IMETHODIMP nsHTMLButtonControlFrame::GetAccessible(nsIAccessible** aAccessible)
{
nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
if (accService) {
return accService->CreateHTML4ButtonAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
}
return NS_ERROR_FAILURE;
}
#endif
void
nsHTMLButtonControlFrame::GetDefaultLabel(nsString& aString)
{
PRInt32 type;
GetType(&type);
if (NS_FORM_BUTTON_BUTTON == type) {
aString.Assign(NS_LITERAL_STRING("Button"));
}
else if (NS_FORM_BUTTON_RESET == type) {
aString.Assign(NS_LITERAL_STRING("Reset"));
}
else if (NS_FORM_BUTTON_SUBMIT == type) {
aString.Assign(NS_LITERAL_STRING("Submit"));
}
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetType(PRInt32* aType) const
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIFormControl* formControl = nsnull;
result = mContent->QueryInterface(NS_GET_IID(nsIFormControl), (void**)&formControl);
if ((NS_OK == result) && formControl) {
result = formControl->GetType(aType);
NS_RELEASE(formControl);
}
}
return result;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetName(nsAString* aResult)
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIHTMLContent* formControl = nsnull;
result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
nsHTMLValue value;
result = formControl->GetHTMLAttribute(nsHTMLAtoms::name, value);
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(*aResult);
}
}
NS_RELEASE(formControl);
}
}
return result;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetValue(nsAString* aResult)
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIHTMLContent* formControl = nsnull;
result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
nsHTMLValue value;
result = formControl->GetHTMLAttribute(nsHTMLAtoms::value, value);
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(*aResult);
}
}
NS_RELEASE(formControl);
}
}
return result;
}
PRBool
nsHTMLButtonControlFrame::IsReset(PRInt32 type)
{
if (NS_FORM_BUTTON_RESET == type) {
return PR_TRUE;
} else {
return PR_FALSE;
}
}
PRBool
nsHTMLButtonControlFrame::IsSubmit(PRInt32 type)
{
if (NS_FORM_BUTTON_SUBMIT == type) {
return PR_TRUE;
} else {
return PR_FALSE;
}
}
void
nsHTMLButtonControlFrame::MouseClicked(nsIPresContext* aPresContext)
{
// This is no longer called; click events are handled in
// nsHTMLInputElement::HandleDOMEvent().
}
void
nsHTMLButtonControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
}
void
nsHTMLButtonControlFrame::ScrollIntoView(nsIPresContext* aPresContext)
{
if (aPresContext) {
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
if (presShell) {
presShell->ScrollFrameIntoView(this,
NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
}
}
}
void
nsHTMLButtonControlFrame::GetTranslatedRect(nsIPresContext* aPresContext, nsRect& aRect)
{
nsIView* view;
nsPoint viewOffset(0,0);
GetOffsetFromView(aPresContext, viewOffset, &view);
while (nsnull != view) {
nsPoint tempOffset;
view->GetPosition(&tempOffset.x, &tempOffset.y);
viewOffset += tempOffset;
view->GetParent(view);
}
aRect = nsRect(viewOffset.x, viewOffset.y, mRect.width, mRect.height);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::HandleEvent(nsIPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
// if disabled do nothing
if (mRenderer.isDisabled()) {
return NS_OK;
}
// mouse clicks are handled by content
// we don't want our children to get any events. So just pass it to frame.
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetFrameForPoint(nsIPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame)
{
if (mRect.Contains(aPoint)) {
const nsStyleVisibility* vis =
(const nsStyleVisibility*)mStyleContext->GetStyleData(eStyleStruct_Visibility);
if (vis->IsVisible()) {
*aFrame = this;
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
// add ourself as an nsIFormControlFrame
nsFormFrame::AddFormControlFrame(aPresContext, *NS_STATIC_CAST(nsIFrame*, this));
// get the frame manager and the style context of the new parent frame
// this is used whent he children are reparented below
// NOTE: the whole reparenting should not need to happen: see bugzilla bug 51767
//
nsCOMPtr<nsIPresShell> shell;
nsCOMPtr<nsIFrameManager> frameManager;
nsCOMPtr<nsIStyleContext> newParentContext;
aPresContext->GetShell(getter_AddRefs(shell));
if (shell) {
shell->GetFrameManager(getter_AddRefs(frameManager));
}
// get the new parent context from the first child: that is the frame that the
// subsequent children will be made children of
mFrames.FirstChild()->GetStyleContext(getter_AddRefs(newParentContext));
// Set the parent for each of the child frames
for (nsIFrame* frame = aChildList; nsnull != frame; frame->GetNextSibling(&frame)) {
frame->SetParent(mFrames.FirstChild());
// now reparent the contexts for the reparented frame too
if (frameManager) {
frameManager->ReParentStyleContext(aPresContext,frame,newParentContext);
}
}
// Queue up the frames for the inline frame
return mFrames.FirstChild()->SetInitialChildList(aPresContext, nsnull, aChildList);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::Paint(nsIPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer,
PRUint32 aFlags)
{
PRBool isVisible;
if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_TRUE, &isVisible)) && !isVisible) {
return NS_OK;
}
nsRect rect(0, 0, mRect.width, mRect.height);
mRenderer.PaintButton(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, rect);
#if 0 // old way
PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
#else // temporary
// XXX This is temporary
// clips to it's size minus the border
// but the real problem is the FirstChild (the AreaFrame)
// isn't being constrained properly
// Bug #17474
const nsStyleBorder* borderStyle;
GetStyleData(eStyleStruct_Border, (const nsStyleStruct *&)borderStyle);
nsMargin border;
border.SizeTo(0, 0, 0, 0);
borderStyle->CalcBorderFor(this, border);
rect.Deflate(border);
aRenderingContext.PushState();
PRBool clipEmpty;
aRenderingContext.SetClipRect(rect, nsClipCombine_kIntersect, clipEmpty);
PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
aRenderingContext.PopState(clipEmpty);
#endif
// to draw border when selected in editor
return nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
}
// XXX a hack until the reflow state does this correctly
// XXX when it gets fixed, leave in the printf statements or add an assertion
static
void ButtonHack(nsHTMLReflowState& aReflowState, const char* aMessage)
{
if (aReflowState.mComputedWidth == 0) {
aReflowState.mComputedWidth = aReflowState.availableWidth;
}
if ((aReflowState.mComputedWidth != NS_INTRINSICSIZE) &&
(aReflowState.mComputedWidth > aReflowState.availableWidth) &&
(aReflowState.availableWidth > 0)) {
// printf("BUG - %s has a computed width = %d, available width = %d \n",
// aMessage, aReflowState.mComputedWidth, aReflowState.availableWidth);
aReflowState.mComputedWidth = aReflowState.availableWidth;
}
if (aReflowState.mComputedHeight == 0) {
aReflowState.mComputedHeight = aReflowState.availableHeight;
}
if ((aReflowState.mComputedHeight != NS_INTRINSICSIZE) &&
(aReflowState.mComputedHeight > aReflowState.availableHeight) &&
(aReflowState.availableHeight > 0)) {
// printf("BUG - %s has a computed height = %d, available height = %d \n",
// aMessage, aReflowState.mComputedHeight, aReflowState.availableHeight);
aReflowState.mComputedHeight = aReflowState.availableHeight;
}
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::AddComputedBorderPaddingToDesiredSize(nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aSuggestedReflowState)
{
aDesiredSize.width += aSuggestedReflowState.mComputedBorderPadding.left + aSuggestedReflowState.mComputedBorderPadding.right;
aDesiredSize.height += aSuggestedReflowState.mComputedBorderPadding.top + aSuggestedReflowState.mComputedBorderPadding.bottom;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsHTMLButtonControlFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
nsFormControlFrame::RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_TRUE);
nsFormFrame::AddFormControlFrame(aPresContext, *NS_STATIC_CAST(nsIFrame*, this));
}
#if 0
nsresult skiprv = nsFormControlFrame::SkipResizeReflow(mCacheSize, mCachedMaxElementSize, aPresContext,
aDesiredSize, aReflowState, aStatus);
if (NS_SUCCEEDED(skiprv)) {
return skiprv;
}
#endif
// XXX remove the following when the reflow state is fixed
ButtonHack((nsHTMLReflowState&)aReflowState, "html4 button");
// commenting this out for now. We need a view to do mouse grabbing but
// it doesn't really seem to work correctly. When you press the only event
// you can get after that is a release. You need mouse enter and exit.
// the view also breaks the outline code. For some reason you can not reset
// the clip rect to draw outside you bounds if you have a view. And you need to
// because the outline must be drawn outside of our bounds according to CSS. -EDV
// XXX If you do decide you need a view, then create it in the Init() function
// and not here...
#if 0
if (!mDidInit) {
// create our view, we need a view to grab the mouse
nsIView* view;
GetView(&view);
if (!view) {
nsresult result = nsComponentManager::CreateInstance(kViewCID, nsnull, NS_GET_IID(nsIView), (void **)&view);
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
nsCOMPtr<nsIViewManager> viewMan;
presShell->GetViewManager(getter_AddRefs(viewMan));
nsIFrame* parWithView;
nsIView *parView;
GetParentWithView(&parWithView);
parWithView->GetView(&parView);
// the view's size is not know yet, but its size will be kept in synch with our frame.
nsRect boundBox(0, 0, 500, 500);
result = view->Init(viewMan, boundBox, parView, nsnull);
viewMan->InsertChild(parView, view, 0);
SetView(view);
const nsStyleColor* color = (const nsStyleColor*) mStyleContext->GetStyleData(eStyleStruct_Color);
// set the opacity
viewMan->SetViewOpacity(view, color->mOpacity);
}
mDidInit = PR_TRUE;
}
#endif
// reflow the child
nsIFrame* firstKid = mFrames.FirstChild();
nsSize availSize(aReflowState.mComputedWidth, NS_INTRINSICSIZE);
// indent the child inside us by the the focus border. We must do this separate from the
// regular border.
nsMargin focusPadding = mRenderer.GetAddedButtonBorderAndPadding();
if (NS_INTRINSICSIZE != availSize.width) {
availSize.width -= focusPadding.left + focusPadding.right;
availSize.width = PR_MAX(availSize.width,0);
}
if (NS_AUTOHEIGHT != availSize.height) {
availSize.height -= focusPadding.top + focusPadding.bottom;
availSize.height = PR_MAX(availSize.height,0);
}
nsHTMLReflowState reflowState(aPresContext, aReflowState, firstKid, availSize);
//reflowState.computedWidth = availSize;
// XXX remove the following when the reflow state is fixed
//ButtonHack(reflowState, "html4 button's area");
// XXX Proper handling of incremental reflow...
if (eReflowReason_Incremental == aReflowState.reason) {
nsIFrame* targetFrame;
// See if it's targeted at us
aReflowState.reflowCommand->GetTarget(targetFrame);
if (this == targetFrame) {
Invalidate(aPresContext, nsRect(0,0,mRect.width,mRect.height), PR_FALSE);
nsReflowType reflowType;
aReflowState.reflowCommand->GetType(reflowType);
if (eReflowType_StyleChanged == reflowType) {
reflowState.reason = eReflowReason_StyleChange;
}
else {
reflowState.reason = eReflowReason_Resize;
}
} else {
nsIFrame* nextFrame;
// Remove the next frame from the reflow path
aReflowState.reflowCommand->GetNext(nextFrame);
}
}
ReflowChild(firstKid, aPresContext, aDesiredSize, reflowState,
focusPadding.left + aReflowState.mComputedBorderPadding.left,
focusPadding.top + aReflowState.mComputedBorderPadding.top,
0, aStatus);
// calculate the min internal size so the contents gets centered correctly
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;
}
// Place the child
FinishReflowChild(firstKid, aPresContext, &reflowState, aDesiredSize,
focusPadding.left + aReflowState.mComputedBorderPadding.right,
yoff + focusPadding.top + aReflowState.mComputedBorderPadding.top, 0);
#if 0 // old way
// if computed use the computed values.
if (aReflowState.mComputedWidth != NS_INTRINSICSIZE && (aDesiredSize.width < aReflowState.mComputedWidth))
aDesiredSize.width = aReflowState.mComputedWidth;
else
aDesiredSize.width += focusPadding.left + focusPadding.right;
if (aReflowState.mComputedHeight != NS_INTRINSICSIZE && (aDesiredSize.height < aReflowState.mComputedHeight))
aDesiredSize.height = aReflowState.mComputedHeight;
else
aDesiredSize.height += focusPadding.top + focusPadding.bottom;
#else // temporary for Bug #17474
// 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;
#endif
AddComputedBorderPaddingToDesiredSize(aDesiredSize, aReflowState);
//aDesiredSize.width += aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right;
//aDesiredSize.height += aReflowState.mComputedBorderPadding.top + aReflowState.mComputedBorderPadding.bottom;
#if 0
//adjust our max element size, if necessary
if (aDesiredSize.maxElementSize) {
aDesiredSize.AddBorderPaddingToMaxElementSize(aReflowState.mComputedBorderPadding);
}
#endif
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
if (nsnull != aDesiredSize.maxElementSize) {
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
// 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;
}
aStatus = NS_FRAME_COMPLETE;
nsFormControlFrame::SetupCachedSizes(mCacheSize, mCachedMaxElementSize, aDesiredSize);
return NS_OK;
}
PRIntn
nsHTMLButtonControlFrame::GetSkipSides() const
{
return 0;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetFont(nsIPresContext* aPresContext,
const nsFont*& aFont)
{
return nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetFormContent(nsIContent*& aContent) const
{
nsIContent* content;
nsresult rv;
rv = GetContent(&content);
aContent = content;
return rv;
}
nscoord
nsHTMLButtonControlFrame::GetVerticalInsidePadding(nsIPresContext* aPresContext,
float aPixToTwip,
nscoord aInnerHeight) const
{
return 0;
}
nscoord
nsHTMLButtonControlFrame::GetHorizontalInsidePadding(nsIPresContext* aPresContext,
float aPixToTwip,
nscoord aInnerWidth,
nscoord aCharWidth) const
{
return 0;
}
nsresult nsHTMLButtonControlFrame::RequiresWidget(PRBool& aRequiresWidget)
{
aRequiresWidget = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP nsHTMLButtonControlFrame::SetProperty(nsIPresContext* 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;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::GetAdditionalStyleContext(PRInt32 aIndex,
nsIStyleContext** aStyleContext) const
{
return mRenderer.GetStyleContext(aIndex, aStyleContext);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::SetAdditionalStyleContext(PRInt32 aIndex,
nsIStyleContext* aStyleContext)
{
return mRenderer.SetStyleContext(aIndex, aStyleContext);
}
NS_IMETHODIMP nsHTMLButtonControlFrame::SetSuggestedSize(nscoord aWidth, nscoord aHeight)
{
// mSuggestedWidth = aWidth;
// mSuggestedHeight = aHeight;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::AppendFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aFrameList)
{
return mFrames.FirstChild()->AppendFrames(aPresContext,
aPresShell,
aListName,
aFrameList);
}
NS_IMETHODIMP
nsHTMLButtonControlFrame::OnContentReset()
{
return NS_OK;
}
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