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Moved GetScreenHeight from Combobox frame to here. duplicated the SkipRelfow method to 

some rework, and I can if def it in and out
b=18895 r=kmcclusk
This commit is contained in:
rods%netscape.com 2000-03-18 13:45:30 +00:00
Родитель 796d671dd3
Коммит 9499e0c6a9
4 изменённых файлов: 348 добавлений и 16 удалений
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180
layout/forms/nsFormControlFrame.cpp
Просмотреть файл

@ -61,11 +61,31 @@
#include "nsIEventStateManager.h"
#ifdef DEBUG_evaughan
#define DEBUG_rods
//#define DEBUG_rods
#endif
#ifdef DEBUG_rods
#define FCF_NOISY
#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;
@ -132,6 +152,97 @@ void nsFormControlFrame::SetupCachedSizes(nsSize& aCacheSize,
}
}
#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) {
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,
@ -170,6 +281,12 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
#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
}
@ -192,15 +309,41 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight) {
if (aReflowState.availableHeight == NS_UNCONSTRAINEDSIZE) {
height = NS_UNCONSTRAINEDSIZE;
aBailOnHeight = aCachedAvailableSize.height != kSizeNotSet;
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.top -
aReflowState.mComputedBorderPadding.bottom;
aBailOnHeight = aCachedAvailableSize.height <= height;
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.mComputedWidth;
aBailOnHeight = aCachedAvailableSize.height == height;
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) {
@ -216,6 +359,7 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
}
}
}
#endif
nscoord
nsFormControlFrame::GetScrollbarWidth(float aPixToTwip)
@ -804,3 +948,23 @@ nsresult nsFormControlFrame::PaintSpecialBorder(nsIPresContext* aPresContext,
#endif
return rv;
}
nsresult
nsFormControlFrame::GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight)
{
aHeight = 0;
nsIDeviceContext* context;
aPresContext->GetDeviceContext( &context );
if ( nsnull != context ) {
PRInt32 height;
PRInt32 width;
context->GetDeviceSurfaceDimensions(width, height);
float devUnits;
context->GetDevUnitsToAppUnits(devUnits);
aHeight = NSToIntRound(float( height) / devUnits );
NS_RELEASE( context );
return NS_OK;
}
return NS_ERROR_FAILURE;
}

2
layout/forms/nsFormControlFrame.h
Просмотреть файл

@ -243,6 +243,8 @@ public:
const nsRect& aDirtyRect,
const nsRect& aRect);
static nsresult GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight);
protected:
virtual ~nsFormControlFrame();

180
layout/html/forms/src/nsFormControlFrame.cpp
Просмотреть файл

@ -61,11 +61,31 @@
#include "nsIEventStateManager.h"
#ifdef DEBUG_evaughan
#define DEBUG_rods
//#define DEBUG_rods
#endif
#ifdef DEBUG_rods
#define FCF_NOISY
#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;
@ -132,6 +152,97 @@ void nsFormControlFrame::SetupCachedSizes(nsSize& aCacheSize,
}
}
#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) {
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,
@ -170,6 +281,12 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
#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
}
@ -192,15 +309,41 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
if (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight) {
if (aReflowState.availableHeight == NS_UNCONSTRAINEDSIZE) {
height = NS_UNCONSTRAINEDSIZE;
aBailOnHeight = aCachedAvailableSize.height != kSizeNotSet;
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.top -
aReflowState.mComputedBorderPadding.bottom;
aBailOnHeight = aCachedAvailableSize.height <= height;
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.mComputedWidth;
aBailOnHeight = aCachedAvailableSize.height == height;
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) {
@ -216,6 +359,7 @@ void nsFormControlFrame::SkipResizeReflow(nsSize& aCacheSize,
}
}
}
#endif
nscoord
nsFormControlFrame::GetScrollbarWidth(float aPixToTwip)
@ -804,3 +948,23 @@ nsresult nsFormControlFrame::PaintSpecialBorder(nsIPresContext* aPresContext,
#endif
return rv;
}
nsresult
nsFormControlFrame::GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight)
{
aHeight = 0;
nsIDeviceContext* context;
aPresContext->GetDeviceContext( &context );
if ( nsnull != context ) {
PRInt32 height;
PRInt32 width;
context->GetDeviceSurfaceDimensions(width, height);
float devUnits;
context->GetDevUnitsToAppUnits(devUnits);
aHeight = NSToIntRound(float( height) / devUnits );
NS_RELEASE( context );
return NS_OK;
}
return NS_ERROR_FAILURE;
}

2
layout/html/forms/src/nsFormControlFrame.h
Просмотреть файл

@ -243,6 +243,8 @@ public:
const nsRect& aDirtyRect,
const nsRect& aRect);
static nsresult GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight);
protected:
virtual ~nsFormControlFrame();