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pjs/layout/forms/nsFormControlFrame.cpp

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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 "nsCOMPtr.h"
#include "nsFormControlFrame.h"
#include "nsHTMLParts.h"
#include "nsIHTMLContent.h"
#include "nsIRenderingContext.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIStyleContext.h"
#include "nsLeafFrame.h"
#include "nsCSSRendering.h"
#include "nsHTMLIIDs.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsCoord.h"
#include "nsWidgetsCID.h"
#include "nsViewsCID.h"
#include "nsIComponentManager.h"
#include "nsGUIEvent.h"
#include "nsIFontMetrics.h"
#include "nsIFormControl.h"
#include "nsIDeviceContext.h"
#include "nsHTMLAtoms.h"
#include "nsIButton.h" // remove this when GetCID is pure virtual
#include "nsICheckButton.h" //remove this
#include "nsITextWidget.h" //remove this
#include "nsISupports.h"
#include "nsStyleConsts.h"
#include "nsUnitConversion.h"
#include "nsStyleUtil.h"
#include "nsFormFrame.h"
#include "nsIContent.h"
#include "nsStyleUtil.h"
#include "nsINameSpaceManager.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsIDOMHTMLLabelElement.h"
#include "nsIDOMHTMLTextAreaElement.h"
#include "nsIDOMHTMLLegendElement.h"
#include "nsIDOMHTMLButtonElement.h"
#include "nsIEventStateManager.h"
#include "nsIScrollableView.h"
#include "nsILookAndFeel.h"
#ifdef DEBUG_evaughan
//#define DEBUG_rods
#endif
#ifdef DEBUG_rods
//#define FCF_NOISY
#endif
#ifdef FCF_NOISY
#define REFLOW_DEBUG_MSG(_msg1) printf((_msg1))
#define REFLOW_DEBUG_MSG2(_msg1, _msg2) printf((_msg1), (_msg2))
#define REFLOW_DEBUG_MSG3(_msg1, _msg2, _msg3) printf((_msg1), (_msg2), (_msg3))
#define REFLOW_DEBUG_MSG4(_msg1, _msg2, _msg3, _msg4) printf((_msg1), (_msg2), (_msg3), (_msg4))
#define IF_REFLOW_DEBUG_MSG(_bool, _msg1) if ((_bool)) printf((_msg1))
#define IF_REFLOW_DEBUG_MSG2(_bool, _msg1, _msg2) if ((_bool)) printf((_msg1), (_msg2))
#define IF_REFLOW_DEBUG_MSG3(_bool, _msg1, _msg2, _msg3) if ((_bool)) printf((_msg1), (_msg2), (_msg3))
#define IF_REFLOW_DEBUG_MSG4(_bool, _msg1, _msg2, _msg3, _msg4) if ((_bool)) printf((_msg1), (_msg2), (_msg3), (_msg4))
#else //-------------
#define REFLOW_DEBUG_MSG(_msg)
#define REFLOW_DEBUG_MSG2(_msg1, _msg2)
#define REFLOW_DEBUG_MSG3(_msg1, _msg2, _msg3)
#define REFLOW_DEBUG_MSG4(_msg1, _msg2, _msg3, _msg4)
#define IF_REFLOW_DEBUG_MSG(_bool, _msg)
#define IF_REFLOW_DEBUG_MSG2(_bool, _msg1, _msg2)
#define IF_REFLOW_DEBUG_MSG3(_bool, _msg1, _msg2, _msg3)
#define IF_REFLOW_DEBUG_MSG4(_bool, _msg1, _msg2, _msg3, _msg4)
#endif
const PRInt32 kSizeNotSet = -1;
nsFormControlFrame::nsFormControlFrame()
: nsLeafFrame()
{
mDidInit = PR_FALSE;
mFormFrame = nsnull;
mSuggestedWidth = NS_FORMSIZE_NOTSET;
mSuggestedHeight = NS_FORMSIZE_NOTSET;
mPresContext = nsnull;
// Reflow Optimization
mCacheSize.width = kSizeNotSet;
mCacheSize.height = kSizeNotSet;
mCachedMaxElementSize.width = kSizeNotSet;
mCachedMaxElementSize.height = kSizeNotSet;
}
nsFormControlFrame::~nsFormControlFrame()
{
if (mFormFrame) {
mFormFrame->RemoveFormControlFrame(*this);
mFormFrame = nsnull;
}
}
NS_IMETHODIMP
nsFormControlFrame::Destroy(nsIPresContext *aPresContext)
{
nsFormControlFrame::RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
return nsLeafFrame::Destroy(aPresContext);
}
// Frames are not refcounted, no need to AddRef
NS_IMETHODIMP
nsFormControlFrame::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 nsLeafFrame::QueryInterface(aIID, aInstancePtr);
}
void nsFormControlFrame::SetupCachedSizes(nsSize& aCacheSize,
nsSize& aCachedMaxElementSize,
nsHTMLReflowMetrics& aDesiredSize)
{
aCacheSize.width = aDesiredSize.width;
aCacheSize.height = aDesiredSize.height;
if (aDesiredSize.maxElementSize != nsnull) {
aCachedMaxElementSize.width = aDesiredSize.maxElementSize->width;
aCachedMaxElementSize.height = aDesiredSize.maxElementSize->height;
}
}
#if 0 // Testing out changes
//------------------------------------------------------------
void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
nsSize& aCachedMaxElementSize,
nsSize& aCachedAvailableSize,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus,
PRBool& aBailOnWidth,
PRBool& aBailOnHeight)
{
if (aReflowState.reason == eReflowReason_Incremental ||
aReflowState.reason == eReflowReason_Dirty) {
aBailOnHeight = PR_FALSE;
aBailOnWidth = PR_FALSE;
} else if (eReflowReason_Initial == aReflowState.reason) {
aBailOnHeight = PR_FALSE;
aBailOnWidth = PR_FALSE;
} else {
nscoord width;
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedWidth) {
if (aReflowState.availableWidth == NS_UNCONSTRAINEDSIZE) {
width = NS_UNCONSTRAINEDSIZE;
aBailOnWidth = aCacheSize.width != kSizeNotSet;
IF_REFLOW_DEBUG_MSG2(aBailOnWidth, "-------------- #1 Bailing on aCachedAvailableSize.width %d != kSizeNotSet\n", aCachedAvailableSize.width);
} else {
//width = aReflowState.availableWidth - aReflowState.mComputedBorderPadding.left -
// aReflowState.mComputedBorderPadding.right;
aBailOnWidth = aCacheSize.width <= aReflowState.availableWidth && aCacheSize.width != kSizeNotSet;
if (aBailOnWidth) {
REFLOW_DEBUG_MSG3("-------------- #2 Bailing on aCachedSize.width %d <= (AW - BP) %d\n", aCachedAvailableSize.width, width );
} else {
//aBailOnWidth = width <= (aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right) &&
// aCachedAvailableSize.width == kSizeNotSet;
//if (aBailOnWidth) {
// REFLOW_DEBUG_MSG3("-------------- #2.2 Bailing on width %d <= aCachedSize.width %d\n", width, (aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right));
//}
}
}
} else {
width = aReflowState.mComputedWidth;
aBailOnWidth = width == (aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right);
IF_REFLOW_DEBUG_MSG3(aBailOnWidth, "-------------- #3 Bailing on aCachedAvailableSize.width %d == aReflowState.mComputedWidth %d\n", aCachedAvailableSize.width, width );
}
nscoord height;
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight) {
if (aReflowState.availableHeight == NS_UNCONSTRAINEDSIZE) {
height = NS_UNCONSTRAINEDSIZE;
aBailOnHeight = aCacheSize.height != kSizeNotSet;
if (aBailOnHeight) {
IF_REFLOW_DEBUG_MSG2(aBailOnHeight, "-------------- #1 Bailing on aCachedAvailableSize.height %d != kSizeNotSet\n", aCachedAvailableSize.height);
}
} else {
height = aReflowState.availableHeight - aReflowState.mComputedBorderPadding.left -
aReflowState.mComputedBorderPadding.right;
aBailOnHeight = aCachedAvailableSize.height <= height && aCachedAvailableSize.height != kSizeNotSet;
if (aBailOnHeight) {
REFLOW_DEBUG_MSG3("-------------- #2 Bailing on aCachedAvailableSize.height %d <= height %d\n", aCachedAvailableSize.height, height );
} else {
aBailOnHeight = height <= (aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right) &&
aCachedAvailableSize.height == kSizeNotSet;
if (aBailOnHeight) {
REFLOW_DEBUG_MSG3("-------------- #2.2 Bailing on height %d <= aCachedSize.height %d\n", height, (aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right));
}
}
}
} else {
height = aReflowState.mComputedHeight;
aBailOnHeight = height == (aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right);
IF_REFLOW_DEBUG_MSG3(aBailOnHeight, "-------------- #3 Bailing on aCachedAvailableSize.height %d == aReflowState.mComputedHeight %d\n", aCachedAvailableSize.height, height );
}
if (aBailOnWidth || aBailOnHeight) {
aDesiredSize.width = aCacheSize.width;
aDesiredSize.height = aCacheSize.height;
if (aDesiredSize.maxElementSize != nsnull) {
aDesiredSize.maxElementSize->width = aCachedMaxElementSize.width;
aDesiredSize.maxElementSize->height = aCachedMaxElementSize.height;
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
}
}
}
#else
//------------------------------------------------------------
void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
nsSize& aCachedMaxElementSize,
nsSize& aCachedAvailableSize,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus,
PRBool& aBailOnWidth,
PRBool& aBailOnHeight)
{
if (aReflowState.reason == eReflowReason_Incremental ||
#ifdef IBMBIDI
aReflowState.reason == eReflowReason_StyleChange ||
#endif
aReflowState.reason == eReflowReason_Dirty) {
aBailOnHeight = PR_FALSE;
aBailOnWidth = PR_FALSE;
} else if (eReflowReason_Initial == aReflowState.reason) {
aBailOnHeight = PR_FALSE;
aBailOnWidth = PR_FALSE;
} else {
nscoord width;
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedWidth) {
if (aReflowState.availableWidth == NS_UNCONSTRAINEDSIZE) {
width = NS_UNCONSTRAINEDSIZE;
aBailOnWidth = aCacheSize.width != kSizeNotSet;
#ifdef FCF_NOISY
if (aBailOnWidth) {
printf("-------------- #1 Bailing on aCachedAvailableSize.width %d != kSizeNotSet\n", aCachedAvailableSize.width);
}
#endif
} else {
width = aReflowState.availableWidth - aReflowState.mComputedBorderPadding.left -
aReflowState.mComputedBorderPadding.right;
aBailOnWidth = aCachedAvailableSize.width <= width && aCachedAvailableSize.width != kSizeNotSet;
#ifdef FCF_NOISY
if (aBailOnWidth) {
printf("-------------- #2 Bailing on aCachedAvailableSize.width %d <= width %d\n", aCachedAvailableSize.width, width );
} else {
aBailOnWidth = width <= (aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right) &&
aCachedAvailableSize.width == kSizeNotSet;
if (aBailOnWidth) {
printf("-------------- #2.2 Bailing on width %d <= aCachedAvailableSize.width %d\n",(aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right), width );
}
}
#endif
}
} else {
width = aReflowState.mComputedWidth;
//if (aCachedAvailableSize.width == kSizeNotSet) {
// //aBailOnWidth = aCachedAvailableSize.width == aCacheSize.width;
aBailOnWidth = PR_FALSE;
//} else {
aBailOnWidth = width == (aCacheSize.width - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right);
//}
#ifdef FCF_NOISY
if (aBailOnWidth) {
printf("-------------- #3 Bailing on aCachedAvailableSize.width %d == aReflowState.mComputedWidth %d\n", aCachedAvailableSize.width, width );
}
#endif
}
nscoord height;
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight) {
if (aReflowState.availableHeight == NS_UNCONSTRAINEDSIZE) {
height = NS_UNCONSTRAINEDSIZE;
aBailOnHeight = aCacheSize.height != kSizeNotSet;
#ifdef FCF_NOISY
if (aBailOnHeight) {
printf("-------------- #1 Bailing on aCachedAvailableSize.height %d != kSizeNotSet\n", aCachedAvailableSize.height);
}
#endif
} else {
height = aReflowState.availableHeight - aReflowState.mComputedBorderPadding.left -
aReflowState.mComputedBorderPadding.right;
aBailOnHeight = aCachedAvailableSize.height <= height && aCachedAvailableSize.height != kSizeNotSet;
#ifdef FCF_NOISY
if (aBailOnHeight) {
printf("-------------- #2 Bailing on aCachedAvailableSize.height %d <= height %d\n", aCachedAvailableSize.height, height );
} else {
aBailOnHeight = height <= (aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right) &&
aCachedAvailableSize.height == kSizeNotSet;
if (aBailOnHeight) {
printf("-------------- #2.2 Bailing on height %d <= aCachedAvailableSize.height %d\n",(aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right), height );
}
}
#endif
}
} else {
height = aReflowState.mComputedHeight;
//if (aCachedAvailableSize.height == kSizeNotSet) {
// //aBailOnHeight = aCachedAvailableSize.height == aCacheSize.height;
aBailOnHeight = PR_FALSE;
//} else {
aBailOnHeight = height == (aCacheSize.height - aReflowState.mComputedBorderPadding.left - aReflowState.mComputedBorderPadding.right);
//}
#ifdef FCF_NOISY
if (aBailOnHeight) {
printf("-------------- #3 Bailing on aCachedAvailableSize.height %d == aReflowState.mComputedHeight %d\n", aCachedAvailableSize.height, height );
}
#endif
}
if (aBailOnWidth || aBailOnHeight) {
aDesiredSize.width = aCacheSize.width;
aDesiredSize.height = aCacheSize.height;
if (aDesiredSize.maxElementSize != nsnull) {
aDesiredSize.maxElementSize->width = aCachedMaxElementSize.width;
aDesiredSize.maxElementSize->height = aCachedMaxElementSize.height;
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
}
}
}
#endif
nscoord
nsFormControlFrame::GetScrollbarWidth(float aPixToTwip)
{
return NSIntPixelsToTwips(19, aPixToTwip); // XXX this is windows
}
void
nsFormControlFrame::SetClickPoint(nscoord aX, nscoord aY)
{
mLastClickPoint.x = aX;
mLastClickPoint.y = aY;
}
// XXX it would be cool if form element used our rendering sw, then
// they could be blended, and bordered, and so on...
NS_METHOD
nsFormControlFrame::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;
}
nsresult rv = NS_OK;
if (aWhichLayer == NS_FRAME_PAINT_LAYER_FOREGROUND) {
rv = nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_BACKGROUND);
if (NS_FAILED(rv))
return rv;
// draw selection borders when appropriate
rv = nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_BACKGROUND);
if (NS_FAILED(rv))
return rv;
rv = nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_FLOATERS);
if (NS_FAILED(rv))
return rv;
// draw selection borders when appropriate
rv = nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_FLOATERS);
if (NS_FAILED(rv))
return rv;
rv = nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_FOREGROUND);
if (NS_FAILED(rv))
return rv;
// draw selection borders when appropriate
rv = nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
NS_FRAME_PAINT_LAYER_FOREGROUND);
}
return rv;
}
NS_IMETHODIMP
nsFormControlFrame::GetFrameForPoint(nsIPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame)
{
nsresult rv = NS_ERROR_FAILURE;
if (aWhichLayer == NS_FRAME_PAINT_LAYER_FOREGROUND) {
rv = nsLeafFrame::GetFrameForPoint(aPresContext, aPoint,
NS_FRAME_PAINT_LAYER_FOREGROUND, aFrame);
if (NS_SUCCEEDED(rv))
return NS_OK;
rv = nsLeafFrame::GetFrameForPoint(aPresContext, aPoint,
NS_FRAME_PAINT_LAYER_FLOATERS, aFrame);
if (NS_SUCCEEDED(rv))
return NS_OK;
rv = nsLeafFrame::GetFrameForPoint(aPresContext, aPoint,
NS_FRAME_PAINT_LAYER_BACKGROUND, aFrame);
}
return rv;
}
void
nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredLayoutSize,
nsSize& aDesiredWidgetSize)
{
// get the css size and let the frame use or override it
nsSize styleSize;
GetStyleSize(aPresContext, aReflowState, styleSize);
// subclasses should always override this method, but if not and no css, make it small
aDesiredLayoutSize.width = (styleSize.width > CSS_NOTSET) ? styleSize.width : 144;
aDesiredLayoutSize.height = (styleSize.height > CSS_NOTSET) ? styleSize.height : 144;
aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
aDesiredLayoutSize.descent = 0;
if (aDesiredLayoutSize.maxElementSize) {
aDesiredLayoutSize.maxElementSize->width = aDesiredLayoutSize.width;
aDesiredLayoutSize.maxElementSize->height = aDesiredLayoutSize.height;
}
aDesiredWidgetSize.width = aDesiredLayoutSize.width;
aDesiredWidgetSize.height = aDesiredLayoutSize.height;
}
void
nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
nsSize ignore;
GetDesiredSize(aPresContext, aReflowState, aDesiredSize, ignore);
}
NS_IMETHODIMP
nsFormControlFrame::DidReflow(nsIPresContext* aPresContext,
const nsHTMLReflowState* aReflowState,
nsDidReflowStatus aStatus)
{
nsresult rv = nsLeafFrame::DidReflow(aPresContext, aReflowState, aStatus);
// The view is created hidden; once we have reflowed it and it has been
// positioned then we show it.
if (NS_FRAME_REFLOW_FINISHED == aStatus) {
nsIView* view = nsnull;
GetView(aPresContext, &view);
if (view) {
const nsStyleVisibility* vis;
GetStyleData(eStyleStruct_Visibility, ((const nsStyleStruct *&)vis));
nsViewVisibility newVis = vis->IsVisible() ? nsViewVisibility_kShow : nsViewVisibility_kHide;
nsViewVisibility oldVis;
// only change if different.
view->GetVisibility(oldVis);
if (newVis != oldVis) {
nsCOMPtr<nsIViewManager> vm;
view->GetViewManager(*getter_AddRefs(vm));
if (vm) {
vm->SetViewVisibility(view, newVis);
}
}
}
}
return rv;
}
NS_IMETHODIMP
nsFormControlFrame::SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
return NS_OK;
}
NS_METHOD
nsFormControlFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
if (!mDidInit) {
mPresContext = aPresContext;
InitializeControl(aPresContext);
mDidInit = PR_TRUE;
}
// add ourself as an nsIFormControlFrame
if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
nsFormFrame::AddFormControlFrame(aPresContext, *NS_STATIC_CAST(nsIFrame*, this));
}
#if 0
nsresult skiprv = SkipResizeReflow(mCacheSize, mCachedMaxElementSize, aPresContext,
aDesiredSize, aReflowState, aStatus);
if (NS_SUCCEEDED(skiprv)) {
return skiprv;
}
#endif
nsresult rv = nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
aStatus = NS_FRAME_COMPLETE;
SetupCachedSizes(mCacheSize, mCachedMaxElementSize, aDesiredSize);
return rv;
}
nsWidgetInitData*
nsFormControlFrame::GetWidgetInitData(nsIPresContext* aPresContext)
{
return nsnull;
}
nsresult
nsFormControlFrame::RegUnRegAccessKey(nsIPresContext* aPresContext, nsIFrame * aFrame, PRBool aDoReg)
{
NS_ASSERTION(aPresContext, "aPresContext is NULL in RegUnRegAccessKey!");
NS_ASSERTION(aFrame, "aFrame is NULL in RegUnRegAccessKey!");
nsresult rv = NS_ERROR_FAILURE;
nsAutoString accessKey;
if (aFrame != nsnull) {
nsCOMPtr<nsIContent> content;
if (NS_SUCCEEDED(aFrame->GetContent(getter_AddRefs(content)))) {
#if 1
PRInt32 nameSpaceID;
content->GetNameSpaceID(nameSpaceID);
nsAutoString resultValue;
rv = content->GetAttr(nameSpaceID, nsHTMLAtoms::accesskey, accessKey);
#else
nsCOMPtr<nsIDOMHTMLInputElement> inputElement(do_QueryInterface(content));
if (inputElement) {
rv = inputElement->GetAccessKey(accessKey);
} else {
nsCOMPtr<nsIDOMHTMLTextAreaElement> textarea(do_QueryInterface(content));
if (textarea) {
rv = textarea->GetAccessKey(accessKey);
} else {
nsCOMPtr<nsIDOMHTMLLabelElement> label(do_QueryInterface(content));
if (label) {
rv = label->GetAccessKey(accessKey);
} else {
nsCOMPtr<nsIDOMHTMLLegendElement> legend(do_QueryInterface(content));
if (legend) {
rv = legend->GetAccessKey(accessKey);
} else {
nsCOMPtr<nsIDOMHTMLButtonElement> btn(do_QueryInterface(content));
if (btn) {
rv = btn->GetAccessKey(accessKey);
}
}
}
}
}
#endif
}
}
if (NS_CONTENT_ATTR_NOT_THERE != rv) {
nsCOMPtr<nsIEventStateManager> stateManager;
if (NS_SUCCEEDED(aPresContext->GetEventStateManager(getter_AddRefs(stateManager)))) {
if (aDoReg) {
return stateManager->RegisterAccessKey(aFrame, nsnull, (PRUint32)accessKey.First());
} else {
return stateManager->UnregisterAccessKey(aFrame, nsnull, (PRUint32)accessKey.First());
}
}
}
return NS_ERROR_FAILURE;
}
void
nsFormControlFrame::InitializeControl(nsIPresContext* aPresContext)
{
RegUnRegAccessKey(aPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_TRUE);
}
void
nsFormControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
}
void
nsFormControlFrame::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);
}
}
}
/*
* FIXME: this ::GetIID() method has no meaning in life and should be
* removed.
* Pierre Phaneuf <pp@ludusdesign.com>
*/
const nsIID&
nsFormControlFrame::GetIID()
{
return NS_GET_IID(nsIButton);
}
const nsIID&
nsFormControlFrame::GetCID()
{
static NS_DEFINE_IID(kButtonCID, NS_BUTTON_CID);
return kButtonCID;
}
NS_IMETHODIMP
nsFormControlFrame::GetMaxLength(PRInt32* aSize)
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::maxlength, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
nsresult
nsFormControlFrame::GetSizeFromContent(PRInt32* aSize) const
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::size, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
NS_IMETHODIMP
nsFormControlFrame::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
nsFormControlFrame::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
nsFormControlFrame::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;
}
NS_METHOD
nsFormControlFrame::HandleEvent(nsIPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
// Check for user-input:none style
const nsStyleUserInterface* uiStyle;
GetStyleData(eStyleStruct_UserInterface, (const nsStyleStruct *&)uiStyle);
if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
// 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;
}
}
NS_IMETHODIMP
nsFormControlFrame::GetFormContent(nsIContent*& aContent) const
{
nsIContent* content;
nsresult rv;
rv = GetContent(&content);
aContent = content;
return rv;
}
NS_IMETHODIMP
nsFormControlFrame::GetFont(nsIPresContext* aPresContext,
const nsFont*& aFont)
{
return nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
}
nsresult
nsFormControlFrame::GetDefaultCheckState(PRBool *aState)
{
nsresult res = NS_OK;
nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
if (inputElement) {
res = inputElement->GetDefaultChecked(aState);
}
return res;
}
nsresult
nsFormControlFrame::SetDefaultCheckState(PRBool aState)
{
nsresult res = NS_OK;
nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
if (inputElement) {
res = inputElement->SetDefaultChecked(aState);
}
return res;
}
nsresult
nsFormControlFrame::GetCurrentCheckState(PRBool *aState)
{
nsresult res = NS_OK;
nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
if (inputElement) {
res = inputElement->GetChecked(aState);
}
return res;
}
nsresult
nsFormControlFrame::SetCurrentCheckState(PRBool aState)
{
nsresult res = NS_OK;
nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
if (inputElement) {
inputElement->SetChecked(aState);
}
return res;
}
NS_IMETHODIMP
nsFormControlFrame::SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsAString& aValue)
{
return NS_OK;
}
NS_IMETHODIMP
nsFormControlFrame::GetProperty(nsIAtom* aName, nsAString& aValue)
{
aValue.Truncate();
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;
}
nsresult
nsFormControlFrame::GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight)
{
aHeight = 0;
nsCOMPtr<nsIDeviceContext> context;
aPresContext->GetDeviceContext( getter_AddRefs(context) );
if ( context ) {
nsRect screen;
PRBool dropdownCanOverlapOSBar = PR_FALSE;
nsCOMPtr<nsILookAndFeel> lookAndFeel;
aPresContext->GetLookAndFeel(getter_AddRefs(lookAndFeel));
if ( lookAndFeel )
lookAndFeel->GetMetric(nsILookAndFeel::eMetric_MenusCanOverlapOSBar, dropdownCanOverlapOSBar);
if ( dropdownCanOverlapOSBar )
context->GetRect ( screen );
else
context->GetClientRect(screen);
float devUnits;
context->GetDevUnitsToAppUnits(devUnits);
aHeight = NSToIntRound(float(screen.height) / devUnits );
return NS_OK;
}
return NS_ERROR_FAILURE;
}
// Calculate a frame's position in screen coordinates
nsresult
nsFormControlFrame::GetAbsoluteFramePosition(nsIPresContext* aPresContext,
nsIFrame *aFrame,
nsRect& aAbsoluteTwipsRect,
nsRect& aAbsolutePixelRect)
{
//XXX: This code needs to take the view's offset into account when calculating
//the absolute coordinate of the frame.
nsresult rv = NS_OK;
aFrame->GetRect(aAbsoluteTwipsRect);
// zero these out,
// because the GetOffsetFromView figures them out
aAbsoluteTwipsRect.x = 0;
aAbsoluteTwipsRect.y = 0;
// Get conversions between twips and pixels
float t2p;
float p2t;
aPresContext->GetTwipsToPixels(&t2p);
aPresContext->GetPixelsToTwips(&p2t);
// Add in frame's offset from it it's containing view
nsIView *containingView = nsnull;
nsPoint offset;
rv = aFrame->GetOffsetFromView(aPresContext, offset, &containingView);
if (NS_SUCCEEDED(rv) && (nsnull != containingView)) {
aAbsoluteTwipsRect.x += offset.x;
aAbsoluteTwipsRect.y += offset.y;
nsPoint viewOffset;
containingView->GetPosition(&viewOffset.x, &viewOffset.y);
nsIView * parent;
containingView->GetParent(parent);
// if we don't have a parent view then
// check to see if we have a widget and adjust our offset for the widget
if (parent == nsnull) {
// account for space above and to the left of the containingView origin.
// the widget is aligned with containingView's bounds, not its origin
nsRect bounds;
containingView->GetBounds(bounds);
aAbsoluteTwipsRect.x += viewOffset.x - bounds.x;
aAbsoluteTwipsRect.y += viewOffset.y - bounds.y;
nsIWidget * widget;
containingView->GetWidget(widget);
if (nsnull != widget) {
// Add in the absolute offset of the widget.
nsRect absBounds;
nsRect lc;
widget->WidgetToScreen(lc, absBounds);
// Convert widget coordinates to twips
aAbsoluteTwipsRect.x += NSIntPixelsToTwips(absBounds.x, p2t);
aAbsoluteTwipsRect.y += NSIntPixelsToTwips(absBounds.y, p2t);
NS_RELEASE(widget);
}
rv = NS_OK;
} else {
while (nsnull != parent) {
nsPoint po;
parent->GetPosition(&po.x, &po.y);
viewOffset.x += po.x;
viewOffset.y += po.y;
nsIScrollableView * scrollView;
if (NS_OK == containingView->QueryInterface(NS_GET_IID(nsIScrollableView), (void **)&scrollView)) {
nscoord x;
nscoord y;
scrollView->GetScrollPosition(x, y);
viewOffset.x -= x;
viewOffset.y -= y;
}
nsIWidget * widget;
parent->GetWidget(widget);
if (nsnull != widget) {
// account for space above and to the left of the containingView origin.
// the widget is aligned with containingView's bounds, not its origin
nsRect bounds;
parent->GetBounds(bounds);
aAbsoluteTwipsRect.x += po.x - bounds.x;
aAbsoluteTwipsRect.y += po.y - bounds.y;
// Add in the absolute offset of the widget.
nsRect absBounds;
nsRect lc;
widget->WidgetToScreen(lc, absBounds);
// Convert widget coordinates to twips
aAbsoluteTwipsRect.x += NSIntPixelsToTwips(absBounds.x, p2t);
aAbsoluteTwipsRect.y += NSIntPixelsToTwips(absBounds.y, p2t);
NS_RELEASE(widget);
break;
}
parent->GetParent(parent);
}
aAbsoluteTwipsRect.x += viewOffset.x;
aAbsoluteTwipsRect.y += viewOffset.y;
}
}
// convert to pixel coordinates
if (NS_SUCCEEDED(rv)) {
aAbsolutePixelRect.x = NSTwipsToIntPixels(aAbsoluteTwipsRect.x, t2p);
aAbsolutePixelRect.y = NSTwipsToIntPixels(aAbsoluteTwipsRect.y, t2p);
aAbsolutePixelRect.width = NSTwipsToIntPixels(aAbsoluteTwipsRect.width, t2p);
aAbsolutePixelRect.height = NSTwipsToIntPixels(aAbsoluteTwipsRect.height, t2p);
}
return rv;
}
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