fune/layout/forms/nsHTMLButtonControlFrame.cpp
rods%netscape.com 99666eed8c This checkin enables mozilla to support the printing of selection, the printing of page ranges, and
the printing of headers and footers.
Printing of selection is implemented by the frames figuring out if they are in the selection and painting
if they or not they they don't paint. This also only allows the printing of the first page of
selections, alothough it is well documented where this is implemeted so it can be removed.
Bugs 63426, 31218, 61075 r=dcone,kmcclusk,erik,buster sr=waterson
2001-01-27 14:09:34 +00:00

862 lines
27 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#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"
static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
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);
}
void
nsHTMLButtonControlFrame::GetDefaultLabel(nsString& aString)
{
PRInt32 type;
GetType(&type);
if (NS_FORM_BUTTON_BUTTON == type) {
aString.AssignWithConversion("Button");
}
else if (NS_FORM_BUTTON_RESET == type) {
aString.AssignWithConversion("Reset");
}
else if (NS_FORM_BUTTON_SUBMIT == type) {
aString.AssignWithConversion("Submit");
}
}
PRInt32
nsHTMLButtonControlFrame::GetMaxNumValues()
{
return 1;
}
PRBool
nsHTMLButtonControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames)
{
nsAutoString name;
nsresult result = GetName(&name);
if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_HAS_VALUE != result)) {
return PR_FALSE;
}
PRInt32 type;
GetType(&type);
nsAutoString value;
nsresult valResult = GetValue(&value);
if (NS_CONTENT_ATTR_HAS_VALUE == valResult) {
aValues[0] = value;
aNames[0] = name;
aNumValues = 1;
return PR_TRUE;
} else {
aNumValues = 0;
return PR_FALSE;
}
}
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(nsString* 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(nsString* 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::IsSuccessful(nsIFormControlFrame* aSubmitter)
{
PRBool successful = PR_TRUE;
if (this == (aSubmitter)) {
nsAutoString name;
PRBool disabled = PR_FALSE;
nsFormControlHelper::GetDisabled(mContent, &disabled);
successful = !disabled && (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
} else {
successful = PR_FALSE;
}
return successful;
}
PRBool
nsHTMLButtonControlFrame::IsReset(PRInt32 type)
{
if (NS_FORM_BUTTON_RESET == type) {
return PR_TRUE;
} else {
return PR_FALSE;
}
}
PRBool
nsHTMLButtonControlFrame::IsSubmit(nsIPresContext* aPresContext, PRInt32 type)
{
nsCompatibility mode;
aPresContext->GetCompatibilityMode(&mode);
if (eCompatibility_Standard == mode && mContent != nsnull) {
// The default type for a html4 button is NS_FORM_BUTTON_BUTTON,
// but that does not mean that the type was actually set to "button"
// so we need to check here to see if a type was actually set
// and oif it wasn't explicitly then we we allow to be a submit
if (NS_FORM_BUTTON_BUTTON == type) {
nsAutoString type;
if (NS_CONTENT_ATTR_HAS_VALUE == mContent->GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::type, type)) {
return PR_FALSE;
} else {
return PR_TRUE;
}
}
}
if (NS_FORM_BUTTON_SUBMIT == type || NS_FORM_INPUT_SUBMIT == type) {
return PR_TRUE;
} else {
return PR_FALSE;
}
}
void
nsHTMLButtonControlFrame::MouseClicked(nsIPresContext* aPresContext)
{
PRInt32 type;
GetType(&type);
if ((nsnull != mFormFrame) && !nsFormFrame::GetDisabled(this)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event;
event.eventStructType = NS_EVENT;
nsIContent *formContent = nsnull;
mFormFrame->GetContent(&formContent);
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
if (presShell) {
if (IsReset(type) == PR_TRUE) {
event.message = NS_FORM_RESET;
presShell->HandleEventWithTarget(&event, nsnull, formContent, NS_EVENT_FLAG_INIT, &status);
if (nsEventStatus_eConsumeNoDefault != status && mFormFrame) {
mFormFrame->OnReset(aPresContext);
}
}
else if (IsSubmit(aPresContext, type) == PR_TRUE) {
event.message = NS_FORM_SUBMIT;
presShell->HandleEventWithTarget(&event, nsnull, formContent, NS_EVENT_FLAG_INIT, &status);
if (nsEventStatus_eConsumeNoDefault != status && mFormFrame) {
mFormFrame->OnSubmit(aPresContext, this);
}
}
}
NS_IF_RELEASE(formContent);
}
}
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 nsStyleDisplay* disp = (const nsStyleDisplay*)
mStyleContext->GetStyleData(eStyleStruct_Display);
if (disp->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)
{
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 nsStyleSpacing* spacing;
GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing);
nsMargin border;
border.SizeTo(0, 0, 0, 0);
spacing->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, 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);
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);
nsIReflowCommand::ReflowType reflowType;
aReflowState.reflowCommand->GetType(reflowType);
if (nsIReflowCommand::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;
}
// center child horizontally
nscoord xoff = 0;
if (aReflowState.mComputedHeight != NS_INTRINSICSIZE) {
xoff = (aReflowState.mComputedWidth - aDesiredSize.width)/2;
if (xoff < 0) {
xoff = 0;
}
} else if (aDesiredSize.width < minInternalWidth) {
xoff = (minInternalWidth - aDesiredSize.width) / 2;
}
// Place the child
FinishReflowChild(firstKid, aPresContext, aDesiredSize,
xoff + focusPadding.left + aReflowState.mComputedBorderPadding.left,
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 nsAReadableString& aValue)
{
return NS_OK;
}
NS_IMETHODIMP nsHTMLButtonControlFrame::GetProperty(nsIAtom* aName, nsAWritableString& aValue)
{
aValue.Truncate();
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);
}