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Change to how overflow is handled for absolutely positioned elements.

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We no longer use nsIAraeFrame and now it's folded into the overflow
area in the reflow metrics


git-svn-id: svn://10.0.0.236/trunk@55424 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
troy%netscape.com
1999-12-06 15:49:53 +00:00
parent a8d6ce613a
commit 52084caad8
42 changed files with 685 additions and 623 deletions
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13
mozilla/content/shared/public/nsLayoutAtomList.h
View File

@@ -104,12 +104,13 @@ LAYOUT_ATOM(textFrame, "TextFrame")
LAYOUT_ATOM(viewportFrame, "ViewportFrame")
// Alphabetical list of frame property names
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty")
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation")
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty")
LAYOUT_ATOM(overflowProperty, "OverflowProperty")
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty")
LAYOUT_ATOM(viewProperty, "ViewProperty")
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty") // nsPoint*
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation") // BOOL
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty") // nsSize*
LAYOUT_ATOM(overflowAreaProperty, "OverflowArea") // nsRect*
LAYOUT_ATOM(overflowProperty, "OverflowProperty") // list of nsIFrame*
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty") // list of nsLineBox*
LAYOUT_ATOM(viewProperty, "ViewProperty") // nsView*
// Alphabetical list of event handler names
LAYOUT_ATOM(onabort, "onabort")

13
mozilla/layout/base/nsLayoutAtomList.h
View File

@@ -104,12 +104,13 @@ LAYOUT_ATOM(textFrame, "TextFrame")
LAYOUT_ATOM(viewportFrame, "ViewportFrame")
// Alphabetical list of frame property names
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty")
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation")
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty")
LAYOUT_ATOM(overflowProperty, "OverflowProperty")
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty")
LAYOUT_ATOM(viewProperty, "ViewProperty")
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty") // nsPoint*
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation") // BOOL
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty") // nsSize*
LAYOUT_ATOM(overflowAreaProperty, "OverflowArea") // nsRect*
LAYOUT_ATOM(overflowProperty, "OverflowProperty") // list of nsIFrame*
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty") // list of nsLineBox*
LAYOUT_ATOM(viewProperty, "ViewProperty") // nsView*
// Alphabetical list of event handler names
LAYOUT_ATOM(onabort, "onabort")

23
mozilla/layout/base/public/nsIFrame.h
View File

@@ -217,20 +217,23 @@ struct nsHTMLReflowMetrics {
// (generational) bottom margin value.
nscoord mCarriedOutBottomMargin;
// For frames that have children that stick outside their rect
// (NS_FRAME_OUTSIDE_CHILDREN) this rectangle will contain the
// absolute bounds of the frame. Since the frame doesn't know where
// it is going to be positioned in its parent, the assumption is
// that it is placed at 0,0 when computing this area.
nsRect mCombinedArea;
// For frames that have content that overflow their content area
// (NS_FRAME_OUTSIDE_CHILDREN) this rectangle represents the total area
// of the frame including visible overflow, i.e., don't include overflowing
// content that is hidden.
// The rect is in the local coordinate space of the frame, and should be at
// least as big as the desired size. If there is no content that overflows,
// then the overflow area is identical to the desired size and should be
// {0, 0, mWidth, mHeight}.
nsRect mOverflowArea;
nsHTMLReflowMetrics(nsSize* aMaxElementSize) {
maxElementSize = aMaxElementSize;
mCarriedOutBottomMargin = 0;
mCombinedArea.x = 0;
mCombinedArea.y = 0;
mCombinedArea.width = 0;
mCombinedArea.height = 0;
mOverflowArea.x = 0;
mOverflowArea.y = 0;
mOverflowArea.width = 0;
mOverflowArea.height = 0;
// XXX These are OUT parameters and so they shouldn't have to be
// initialized, but there are some bad frame classes that aren't

13
mozilla/layout/base/public/nsLayoutAtomList.h
View File

@@ -104,12 +104,13 @@ LAYOUT_ATOM(textFrame, "TextFrame")
LAYOUT_ATOM(viewportFrame, "ViewportFrame")
// Alphabetical list of frame property names
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty")
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation")
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty")
LAYOUT_ATOM(overflowProperty, "OverflowProperty")
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty")
LAYOUT_ATOM(viewProperty, "ViewProperty")
LAYOUT_ATOM(collapseOffsetProperty, "CollapseOffsetProperty") // nsPoint*
LAYOUT_ATOM(inlineFrameAnnotation, "InlineFrameAnnotation") // BOOL
LAYOUT_ATOM(maxElementSizeProperty, "MaxElementSizeProperty") // nsSize*
LAYOUT_ATOM(overflowAreaProperty, "OverflowArea") // nsRect*
LAYOUT_ATOM(overflowProperty, "OverflowProperty") // list of nsIFrame*
LAYOUT_ATOM(overflowLinesProperty, "OverflowLinesProperty") // list of nsLineBox*
LAYOUT_ATOM(viewProperty, "ViewProperty") // nsView*
// Alphabetical list of event handler names
LAYOUT_ATOM(onabort, "onabort")

3
mozilla/layout/forms/nsSelectsAreaFrame.cpp
View File

@@ -23,9 +23,6 @@
#include "nsCOMPtr.h"
#include "nsIDOMHTMLOptionElement.h"
#include "nsIContent.h"
#include "nsIAreaFrame.h"
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
nsresult
NS_NewSelectsAreaFrame(nsIPresShell* aShell, nsIFrame** aNewFrame, PRUint32 aFlags)

172
mozilla/layout/generic/nsAbsoluteContainingBlock.cpp
View File

@@ -19,10 +19,10 @@
*
* Contributor(s):
*/
#include "nsCOMPtr.h"
#include "nsAbsoluteContainingBlock.h"
#include "nsContainerFrame.h"
#include "nsHTMLIIDs.h"
#include "nsIAreaFrame.h"
#include "nsIReflowCommand.h"
#include "nsIStyleContext.h"
#include "nsIViewManager.h"
@@ -30,8 +30,8 @@
#include "nsIReflowCommand.h"
#include "nsIPresShell.h"
#include "nsHTMLParts.h"
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
#include "nsIPresContext.h"
#include "nsIFrameManager.h"
nsresult
nsAbsoluteContainingBlock::FirstChild(const nsIFrame* aDelegatingFrame,
@@ -127,13 +127,62 @@ nsAbsoluteContainingBlock::RemoveFrame(nsIFrame* aDelegatingFrame,
return result ? NS_OK : NS_ERROR_FAILURE;
}
// Destructor function for the collapse offset frame property
static void
DestroyRectFunc(nsIPresContext* aPresContext,
nsIFrame* aFrame,
nsIAtom* aPropertyName,
void* aPropertyValue)
{
delete (nsRect*)aPropertyValue;
}
static nsRect*
GetOverflowAreaProperty(nsIPresContext* aPresContext,
nsIFrame* aFrame,
PRBool aCreateIfNecessary = PR_FALSE)
{
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
if (presShell) {
nsCOMPtr<nsIFrameManager> frameManager;
presShell->GetFrameManager(getter_AddRefs(frameManager));
if (frameManager) {
void* value;
frameManager->GetFrameProperty(aFrame, nsLayoutAtoms::overflowAreaProperty,
0, &value);
if (value) {
return (nsRect*)value; // the property already exists
} else if (aCreateIfNecessary) {
// The property isn't set yet, so allocate a new rect, set the property,
// and return the newly allocated rect
nsRect* overflow = new nsRect(0, 0, 0, 0);
frameManager->SetFrameProperty(aFrame, nsLayoutAtoms::overflowAreaProperty,
overflow, DestroyRectFunc);
return overflow;
}
}
}
return nsnull;
}
nsresult
nsAbsoluteContainingBlock::Reflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight)
nscoord aContainingBlockHeight,
nsRect& aChildBounds)
{
// Initialize OUT parameter
aChildBounds.SetRect(0, 0, 0, 0);
// Make a copy of the reflow state. If the reason is eReflowReason_Incremental,
// then change it to eReflowReason_Resize
nsHTMLReflowState reflowState(aReflowState);
@@ -147,20 +196,73 @@ nsAbsoluteContainingBlock::Reflow(nsIFrame* aDelegatingFrame,
nsReflowStatus kidStatus;
ReflowAbsoluteFrame(aDelegatingFrame, aPresContext, reflowState, aContainingBlockWidth,
aContainingBlockHeight, kidFrame, PR_FALSE, kidStatus);
// Add in the child's bounds
nsRect kidBounds;
kidFrame->GetRect(kidBounds);
aChildBounds.UnionRect(aChildBounds, kidBounds);
// If the frame has visible overflow, then take it into account, too.
nsFrameState kidFrameState;
kidFrame->GetFrameState(&kidFrameState);
if (kidFrameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, kidFrame);
if (overflowArea) {
// The overflow area is in the child's coordinate space, so translate
// it into the parent's coordinate space
nsRect rect(*overflowArea);
rect.MoveBy(kidBounds.x, kidBounds.y);
aChildBounds.UnionRect(aChildBounds, rect);
}
}
}
return NS_OK;
}
void
nsAbsoluteContainingBlock::CalculateChildBounds(nsIPresContext* aPresContext,
nsRect& aChildBounds)
{
for (nsIFrame* f = mAbsoluteFrames.FirstChild(); f; f->GetNextSibling(&f)) {
// Add in the child's bounds
nsRect bounds;
f->GetRect(bounds);
aChildBounds.UnionRect(aChildBounds, bounds);
// If the frame has visible overflow, then take it into account, too.
nsFrameState frameState;
f->GetFrameState(&frameState);
if (frameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, f);
if (overflowArea) {
// The overflow area is in the child's coordinate space, so translate
// it into the parent's coordinate space
nsRect rect(*overflowArea);
rect.MoveBy(bounds.x, bounds.y);
aChildBounds.UnionRect(aChildBounds, rect);
}
}
}
}
nsresult
nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight,
PRBool& aWasHandled)
PRBool& aWasHandled,
nsRect& aChildBounds)
{
// Initialize the OUT paremeter
// Initialize the OUT paremeters
aWasHandled = PR_FALSE;
aChildBounds.SetRect(0, 0, 0, 0);
// See if the reflow command is targeted at us
nsIFrame* targetFrame;
@@ -204,6 +306,9 @@ nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatin
// Indicate we handled the reflow command
aWasHandled = PR_TRUE;
// Calculate the total child bounds
CalculateChildBounds(aPresContext, aChildBounds);
}
} else {
@@ -226,6 +331,9 @@ nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatin
// because it has a view if it changes size the view manager will
// damage the dirty area
aWasHandled = PR_TRUE;
// Calculate the total child bounds
CalculateChildBounds(aPresContext, aChildBounds);
}
}
@@ -272,7 +380,6 @@ nsAbsoluteContainingBlock::ReflowAbsoluteFrame(nsIFrame* aDelegat
kidReflowState.reason = eReflowReason_Initial;
}
// XXX TROY
// Send the WillReflow() notification and position the frame
aKidFrame->WillReflow(aPresContext);
aKidFrame->MoveTo(aPresContext,
@@ -382,49 +489,22 @@ nsAbsoluteContainingBlock::ReflowAbsoluteFrame(nsIFrame* aDelegat
// Size and position the view and set its opacity, visibility, content
// transparency, and clip
nsContainerFrame::SyncFrameViewAfterReflow(aPresContext, aKidFrame, kidView,
&kidDesiredSize.mCombinedArea);
&kidDesiredSize.mOverflowArea);
aKidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
return rv;
}
nsresult
nsAbsoluteContainingBlock::GetPositionedInfo(const nsIFrame* aDelegatingFrame,
nscoord& aXMost,
nscoord& aYMost) const
{
aXMost = aYMost = 0;
for (nsIFrame* f = mAbsoluteFrames.FirstChild(); nsnull != f; f->GetNextSibling(&f)) {
// Get the frame's x-most and y-most. This is for its flowed content only
nsRect rect;
f->GetRect(rect);
// If the frame has visible overflow, then store it as a property on the
// frame. This allows us to be able to recover it without having to reflow
// the frame
nsFrameState kidFrameState;
aKidFrame->GetFrameState(&kidFrameState);
if (kidFrameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property (creating a rect struct if necessary)
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, aKidFrame, PR_TRUE);
if (rect.XMost() > aXMost) {
aXMost = rect.XMost();
}
if (rect.YMost() > aYMost) {
aYMost = rect.YMost();
}
// If the child frame is also an area frame, then take into account its child
// absolutely positioned elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(f->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
// Convert to our coordinate space
xMost += rect.x;
yMost += rect.y;
if (xMost > aXMost) {
aXMost = xMost;
}
if (yMost > aYMost) {
aYMost = yMost;
}
if (overflowArea) {
*overflowArea = kidDesiredSize.mOverflowArea;
}
}
return NS_OK;
return rv;
}

22
mozilla/layout/generic/nsAbsoluteContainingBlock.h
View File

@@ -71,31 +71,35 @@ public:
// Called by the delegating frame after it has done its reflow first. This
// function will reflow any absolutely positioned child frames that need to
// be reflowed, e.g., because the absolutely positioned child frame has
// 'auto' for an offset, or a percentage based width or height
// 'auto' for an offset, or a percentage based width or height.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible)
nsresult Reflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight);
nscoord aContainingBlockHeight,
nsRect& aChildBounds);
// Called only for a reflow reason of eReflowReason_Incremental. The
// aWasHandled return value indicates whether the reflow command was
// handled (i.e., the reflow command involved an absolutely positioned
// child element), or whether the caller should handle it
// child element), or whether the caller should handle it.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible). This is only set if the reflow command was handled
nsresult IncrementalReflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight,
PRBool& aWasHandled);
PRBool& aWasHandled,
nsRect& aChildBounds);
void DestroyFrames(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext);
nsresult GetPositionedInfo(const nsIFrame* aDelegatingFrame,
nscoord& aXMost,
nscoord& aYMost) const;
protected:
nsresult ReflowAbsoluteFrame(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
@@ -106,6 +110,8 @@ protected:
PRBool aInitialReflow,
nsReflowStatus& aStatus);
void CalculateChildBounds(nsIPresContext* aPresContext, nsRect& aChildBounds);
protected:
nsFrameList mAbsoluteFrames; // additional named child list
};

114
mozilla/layout/generic/nsAreaFrame.cpp
View File

@@ -59,23 +59,6 @@ nsAreaFrame::nsAreaFrame()
{
}
/////////////////////////////////////////////////////////////////////////////
// nsISupports
NS_IMETHODIMP
nsAreaFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIAreaFrameIID)) {
nsIAreaFrame* tmp = (nsIAreaFrame*)this;
*aInstancePtr = (void*)tmp;
return NS_OK;
}
return nsBlockFrame::QueryInterface(aIID, aInstancePtr);
}
/////////////////////////////////////////////////////////////////////////////
// nsIFrame
@@ -186,32 +169,6 @@ nsAreaFrame::FirstChild(nsIAtom* aListName, nsIFrame** aFirstChild) const
return nsBlockFrame::FirstChild(aListName, aFirstChild);
}
// Return the x-most and y-most for the child absolutely positioned
// elements
NS_IMETHODIMP
nsAreaFrame::GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const
{
nsresult rv = mAbsoluteContainer.GetPositionedInfo(this, aXMost, aYMost);
// If we have child frames that stick outside of our box, and they should
// be visible, then include them too so the total size is correct
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
const nsStyleDisplay* display = (const nsStyleDisplay*)
mStyleContext->GetStyleData(eStyleStruct_Display);
if (NS_STYLE_OVERFLOW_VISIBLE == display->mOverflow) {
if (mCombinedArea.XMost() > aXMost) {
aXMost = mCombinedArea.XMost();
}
if (mCombinedArea.YMost() > aYMost) {
aYMost = mCombinedArea.YMost();
}
}
}
return rv;
}
static void
CalculateContainingBlock(const nsHTMLReflowState& aReflowState,
nscoord aFrameWidth,
@@ -244,7 +201,7 @@ CalculateContainingBlock(const nsHTMLReflowState& aReflowState,
NS_IMETHODIMP
nsAreaFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
@@ -262,31 +219,55 @@ nsAreaFrame::Reflow(nsIPresContext* aPresContext,
nscoord containingBlockWidth;
nscoord containingBlockHeight;
PRBool handled;
nsRect childBounds;
CalculateContainingBlock(aReflowState, mRect.width, mRect.height,
containingBlockWidth, containingBlockHeight);
mAbsoluteContainer.IncrementalReflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight,
handled);
handled, childBounds);
// If the incremental reflow command was handled by the absolute positioning
// code, then we're all done
if (handled) {
// Just return our current size as our desired size
aDesiredSize.width = mRect.width;
aDesiredSize.height = mRect.height;
aDesiredSize.ascent = mRect.height;
aDesiredSize.descent = 0;
// Just return our current size as our desired size.
// XXX We need to know the overflow area for the flowed content, and
// we don't have a way to get that currently so for the time being pretend
// a resize reflow occured
#if 0
aMetrics.width = mRect.width;
aMetrics.height = mRect.height;
aMetrics.ascent = mRect.height;
aMetrics.descent = 0;
// Whether or not we're complete hasn't changed
aStatus = (nsnull != mNextInFlow) ? NS_FRAME_NOT_COMPLETE : NS_FRAME_COMPLETE;
#else
nsHTMLReflowState reflowState(aReflowState);
reflowState.reason = eReflowReason_Resize;
reflowState.reflowCommand = nsnull;
rv = nsBlockFrame::Reflow(aPresContext, aMetrics, reflowState, aStatus);
#endif
// Factor the absolutely positioned child bounds into the overflow area
aMetrics.mOverflowArea.UnionRect(aMetrics.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
return rv;
}
}
// Let the block frame do its reflow first
rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
rv = nsBlockFrame::Reflow(aPresContext, aMetrics, aReflowState, aStatus);
// Let the absolutely positioned container reflow any absolutely positioned
// child frames that need to be reflowed, e.g., elements with a percentage
@@ -294,28 +275,37 @@ nsAreaFrame::Reflow(nsIPresContext* aPresContext,
if (NS_SUCCEEDED(rv)) {
nscoord containingBlockWidth;
nscoord containingBlockHeight;
nsRect childBounds;
CalculateContainingBlock(aReflowState, aDesiredSize.width, aDesiredSize.height,
CalculateContainingBlock(aReflowState, aMetrics.width, aMetrics.height,
containingBlockWidth, containingBlockHeight);
rv = mAbsoluteContainer.Reflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight);
containingBlockWidth, containingBlockHeight,
childBounds);
// Factor the absolutely positioned child bounds into the overflow area
aMetrics.mOverflowArea.UnionRect(aMetrics.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
}
#ifdef NOISY_MAX_ELEMENT_SIZE
ListTag(stdout);
printf(": maxElementSize=%d,%d desiredSize=%d,%d\n",
aDesiredSize.maxElementSize ? aDesiredSize.maxElementSize->width : 0,
aDesiredSize.maxElementSize ? aDesiredSize.maxElementSize->height : 0,
aDesiredSize.width, aDesiredSize.height);
aMetrics.maxElementSize ? aMetrics.maxElementSize->width : 0,
aMetrics.maxElementSize ? aMetrics.maxElementSize->height : 0,
aMetrics.width, aMetrics.height);
#endif
// If we have children that stick outside our box, then remember the
// combined area, because we'll need it later when sizing our view
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
mCombinedArea = aDesiredSize.mCombinedArea;
}
return rv;
}

10
mozilla/layout/generic/nsAreaFrame.h
View File

@@ -24,7 +24,6 @@
#include "nsBlockFrame.h"
#include "nsVoidArray.h"
#include "nsIAreaFrame.h"
#include "nsAbsoluteContainingBlock.h"
class nsSpaceManager;
@@ -44,14 +43,11 @@ struct nsStylePosition;
*
* @see nsLayoutAtoms::absoluteList
*/
class nsAreaFrame : public nsBlockFrame, public nsIAreaFrame
class nsAreaFrame : public nsBlockFrame
{
public:
friend nsresult NS_NewAreaFrame(nsIPresShell* aPresShell, nsIFrame** aResult, PRUint32 aFlags);
// nsISupports
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
// nsIFrame
NS_IMETHOD Destroy(nsIPresContext* aPresContext);
@@ -94,15 +90,11 @@ public:
NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
#endif
// nsIAreaFrame
NS_IMETHOD GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const;
protected:
nsAreaFrame();
private:
nsAbsoluteContainingBlock mAbsoluteContainer;
nsRect mCombinedArea;
};
#endif /* nsAreaFrame_h___ */

33
mozilla/layout/generic/nsBlockFrame.cpp
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

24
mozilla/layout/generic/nsBlockReflowContext.cpp
View File

@@ -317,11 +317,11 @@ nsBlockReflowContext::ReflowBlock(nsIFrame* aFrame,
aFrame->GetFrameState(&state);
if (0 == (NS_FRAME_OUTSIDE_CHILDREN & state)) {
// Provide combined area for child that doesn't have any
mMetrics.mCombinedArea.x = 0;
mMetrics.mCombinedArea.y = 0;
mMetrics.mCombinedArea.width = mMetrics.width;
mMetrics.mCombinedArea.height = mMetrics.height;
// Provide overflow area for child that doesn't have any
mMetrics.mOverflowArea.x = 0;
mMetrics.mOverflowArea.y = 0;
mMetrics.mOverflowArea.width = mMetrics.width;
mMetrics.mOverflowArea.height = mMetrics.height;
}
// Now that frame has been reflowed at least one time make sure that
@@ -376,8 +376,8 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
nscoord x = mX;
nscoord y = mY;
// When deciding whether it's an empty paragraph we also need to take into
// account the combined area
if ((0 == mMetrics.height) && (0 == mMetrics.mCombinedArea.height)) {
// account the overflow area
if ((0 == mMetrics.height) && (0 == mMetrics.mOverflowArea.height)) {
if (IsHTMLParagraph(mFrame)) {
// Special "feature" for HTML compatability - empty paragraphs
// collapse into nothingness, including their margins. Signal
@@ -432,7 +432,7 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
// Retain combined area information in case we contain a floater
// and nothing else.
aCombinedRect = mMetrics.mCombinedArea;
aCombinedRect = mMetrics.mOverflowArea;
aCombinedRect.x += x;
aCombinedRect.y += y;
}
@@ -549,10 +549,10 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
// Compute combined-rect in callers coordinate system. The value
// returned in the reflow metrics is relative to the child
// frame.
aCombinedRect.x = mMetrics.mCombinedArea.x + x;
aCombinedRect.y = mMetrics.mCombinedArea.y + y;
aCombinedRect.width = mMetrics.mCombinedArea.width;
aCombinedRect.height = mMetrics.mCombinedArea.height;
aCombinedRect.x = mMetrics.mOverflowArea.x + x;
aCombinedRect.y = mMetrics.mOverflowArea.y + y;
aCombinedRect.width = mMetrics.mOverflowArea.width;
aCombinedRect.height = mMetrics.mOverflowArea.height;
// Now place the frame and complete the reflow process
nsContainerFrame::FinishReflowChild(mFrame, mPresContext, mMetrics, x, y, 0);

33
mozilla/layout/generic/nsBlockReflowState.cpp
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

33
mozilla/layout/generic/nsBlockReflowState.h
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

2
mozilla/layout/generic/nsContainerFrame.cpp
View File

@@ -718,7 +718,7 @@ nsContainerFrame::FinishReflowChild(nsIFrame* aKidFrame,
// Make sure the frame's view is properly sized and positioned and has
// things like opacity correct
SyncFrameViewAfterReflow(aPresContext, aKidFrame, view,
&aDesiredSize.mCombinedArea,
&aDesiredSize.mOverflowArea,
aFlags);
} else if (0 == (aFlags & NS_FRAME_NO_MOVE_CHILD_VIEWS)) {

8
mozilla/layout/generic/nsFrame.cpp
View File

@@ -1567,10 +1567,10 @@ nsFrame::IsFrameTreeTooDeep(const nsHTMLReflowState& aReflowState,
aMetrics.ascent = 0;
aMetrics.descent = 0;
aMetrics.mCarriedOutBottomMargin = 0;
aMetrics.mCombinedArea.x = 0;
aMetrics.mCombinedArea.y = 0;
aMetrics.mCombinedArea.width = 0;
aMetrics.mCombinedArea.height = 0;
aMetrics.mOverflowArea.x = 0;
aMetrics.mOverflowArea.y = 0;
aMetrics.mOverflowArea.width = 0;
aMetrics.mOverflowArea.height = 0;
if (aMetrics.maxElementSize) {
aMetrics.maxElementSize->width = 0;
aMetrics.maxElementSize->height = 0;

21
mozilla/layout/generic/nsGfxScrollFrame.cpp
View File

@@ -34,7 +34,6 @@
#include "nsCSSRendering.h"
#include "nsIScrollableView.h"
#include "nsWidgetsCID.h"
#include "nsIAreaFrame.h"
#include "nsGfxScrollFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIXMLContent.h"
@@ -54,7 +53,6 @@ static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
static NS_DEFINE_IID(kIAnonymousContentCreatorIID, NS_IANONYMOUS_CONTENT_CREATOR_IID);
@@ -893,23 +891,8 @@ nsGfxScrollFrameInner::CalculateChildTotalSize(nsIFrame* aKidFrame,
nsFrameState kidState;
aKidFrame->GetFrameState(&kidState);
if (NS_FRAME_OUTSIDE_CHILDREN & kidState) {
aKidReflowMetrics.width = aKidReflowMetrics.mCombinedArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mCombinedArea.height;
}
// If it's an area frame, then get the total size which includes the
// space taken up by absolutely positioned child elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(aKidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
if (xMost > aKidReflowMetrics.width) {
aKidReflowMetrics.width = xMost;
}
if (yMost > aKidReflowMetrics.height) {
aKidReflowMetrics.height = yMost;
}
aKidReflowMetrics.width = aKidReflowMetrics.mOverflowArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mOverflowArea.height;
}
return NS_OK;

30
mozilla/layout/generic/nsHTMLFrame.cpp
View File

@@ -41,12 +41,10 @@
#include "nsIEventStateManager.h"
#include "nsIDeviceContext.h"
#include "nsIScrollableView.h"
#include "nsIAreaFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIPresShell.h"
// Interface IDs
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
@@ -345,36 +343,16 @@ RootFrame::Reflow(nsIPresContext* aPresContext,
nscoord paddingEdgeX = kidDesiredSize.width - border.right;
nscoord paddingEdgeY = kidDesiredSize.height - border.bottom;
if (kidDesiredSize.mCombinedArea.XMost() > paddingEdgeX) {
kidDesiredSize.width = kidDesiredSize.mCombinedArea.XMost() +
if (kidDesiredSize.mOverflowArea.XMost() > paddingEdgeX) {
kidDesiredSize.width = kidDesiredSize.mOverflowArea.XMost() +
border.right;
}
if (kidDesiredSize.mCombinedArea.YMost() > paddingEdgeY) {
kidDesiredSize.height = kidDesiredSize.mCombinedArea.YMost() +
if (kidDesiredSize.mOverflowArea.YMost() > paddingEdgeY) {
kidDesiredSize.height = kidDesiredSize.mOverflowArea.YMost() +
border.bottom;
}
}
// XXX It would be nice if this were also part of the reflow metrics...
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(kidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
// Get the x-most and y-most of the absolutely positioned children
nscoord positionedXMost, positionedYMost;
areaFrame->GetPositionedInfo(positionedXMost, positionedYMost);
// The background covers the content area and padding area, so check
// for children sticking outside the padding edge
nscoord paddingEdgeX = kidDesiredSize.width - border.right;
nscoord paddingEdgeY = kidDesiredSize.height - border.bottom;
if (positionedXMost > paddingEdgeX) {
kidDesiredSize.width = positionedXMost + border.right;
}
if (positionedYMost > paddingEdgeY) {
kidDesiredSize.height = positionedYMost + border.bottom;
}
}
// If our height is fixed, then make sure the child frame plus its top and
// bottom margin is at least that high as well...
if (NS_AUTOHEIGHT != aReflowState.mComputedHeight) {

23
mozilla/layout/generic/nsIFrame.h
View File

@@ -217,20 +217,23 @@ struct nsHTMLReflowMetrics {
// (generational) bottom margin value.
nscoord mCarriedOutBottomMargin;
// For frames that have children that stick outside their rect
// (NS_FRAME_OUTSIDE_CHILDREN) this rectangle will contain the
// absolute bounds of the frame. Since the frame doesn't know where
// it is going to be positioned in its parent, the assumption is
// that it is placed at 0,0 when computing this area.
nsRect mCombinedArea;
// For frames that have content that overflow their content area
// (NS_FRAME_OUTSIDE_CHILDREN) this rectangle represents the total area
// of the frame including visible overflow, i.e., don't include overflowing
// content that is hidden.
// The rect is in the local coordinate space of the frame, and should be at
// least as big as the desired size. If there is no content that overflows,
// then the overflow area is identical to the desired size and should be
// {0, 0, mWidth, mHeight}.
nsRect mOverflowArea;
nsHTMLReflowMetrics(nsSize* aMaxElementSize) {
maxElementSize = aMaxElementSize;
mCarriedOutBottomMargin = 0;
mCombinedArea.x = 0;
mCombinedArea.y = 0;
mCombinedArea.width = 0;
mCombinedArea.height = 0;
mOverflowArea.x = 0;
mOverflowArea.y = 0;
mOverflowArea.width = 0;
mOverflowArea.height = 0;
// XXX These are OUT parameters and so they shouldn't have to be
// initialized, but there are some bad frame classes that aren't

54
mozilla/layout/generic/nsInlineFrame.cpp
View File

@@ -461,12 +461,12 @@ nsInlineFrame::ReflowFrames(nsIPresContext* aPresContext,
}
}
// For now our combined area is zero. The real value will be
// For now our overflow area is zero. The real value will be
// computed during vertical alignment of the line we are on.
aMetrics.mCombinedArea.x = 0;
aMetrics.mCombinedArea.y = 0;
aMetrics.mCombinedArea.width = aMetrics.width;
aMetrics.mCombinedArea.height = aMetrics.height;
aMetrics.mOverflowArea.x = 0;
aMetrics.mOverflowArea.y = 0;
aMetrics.mOverflowArea.width = aMetrics.width;
aMetrics.mOverflowArea.height = aMetrics.height;
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -973,12 +973,13 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
if (eReflowReason_Incremental == aReflowState.reason) {
// Give the absolute positioning code a chance to handle it
PRBool handled;
nsRect childBounds;
nscoord containingBlockWidth = -1;
nscoord containingBlockHeight = -1;
mAbsoluteContainer.IncrementalReflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight,
handled);
handled, childBounds);
// If the incremental reflow command was handled by the absolute positioning
// code, then we're all done
@@ -989,7 +990,25 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowState reflowState(aReflowState);
reflowState.reason = eReflowReason_Resize;
reflowState.reflowCommand = nsnull;
return nsInlineFrame::Reflow(aPresContext, aDesiredSize, reflowState, aStatus);
rv = nsInlineFrame::Reflow(aPresContext, aDesiredSize, reflowState, aStatus);
// XXX Although this seems like the correct thing to do the line layout
// code seems to reset the NS_FRAME_OUTSIDE_CHILDREN and so it is ignored
#if 0
// Factor the absolutely positioned child bounds into the overflow area
aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aDesiredSize.mOverflowArea.x < 0) ||
(aDesiredSize.mOverflowArea.y < 0) ||
(aDesiredSize.mOverflowArea.XMost() > aDesiredSize.width) ||
(aDesiredSize.mOverflowArea.YMost() > aDesiredSize.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
#endif
return rv;
}
}
@@ -1001,9 +1020,28 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
if (NS_SUCCEEDED(rv)) {
nscoord containingBlockWidth = -1;
nscoord containingBlockHeight = -1;
nsRect childBounds;
rv = mAbsoluteContainer.Reflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight);
containingBlockWidth, containingBlockHeight,
childBounds);
// XXX Although this seems like the correct thing to do the line layout
// code seems to reset the NS_FRAME_OUTSIDE_CHILDREN and so it is ignored
#if 0
// Factor the absolutely positioned child bounds into the overflow area
aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aDesiredSize.mOverflowArea.x < 0) ||
(aDesiredSize.mOverflowArea.y < 0) ||
(aDesiredSize.mOverflowArea.XMost() > aDesiredSize.width) ||
(aDesiredSize.mOverflowArea.YMost() > aDesiredSize.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
#endif
}
return rv;

4
mozilla/layout/generic/nsLineLayout.cpp
View File

@@ -1062,7 +1062,7 @@ nsLineLayout::ReflowFrame(nsIFrame* aFrame,
aFrame->GetFrameState(&state);
if (NS_FRAME_OUTSIDE_CHILDREN & state) {
pfd->mCombinedArea = metrics.mCombinedArea;
pfd->mCombinedArea = metrics.mOverflowArea;
}
else {
pfd->mCombinedArea.x = 0;
@@ -1480,7 +1480,7 @@ nsLineLayout::AddBulletFrame(nsIFrame* aFrame,
// Note: y value will be updated during vertical alignment
aFrame->GetRect(pfd->mBounds);
pfd->mCombinedArea = aMetrics.mCombinedArea;
pfd->mCombinedArea = aMetrics.mOverflowArea;
if (mComputeMaxElementSize) {
pfd->mMaxElementSize.SizeTo(aMetrics.width, aMetrics.height);
}

2
mozilla/layout/generic/nsViewportFrame.cpp
View File

@@ -375,7 +375,7 @@ ViewportFrame::ReflowFixedFrame(nsIPresContext* aPresContext,
// Size and position the view and set its opacity, visibility, content
// transparency, and clip
nsContainerFrame::SyncFrameViewAfterReflow(aPresContext, aKidFrame, kidView,
&kidDesiredSize.mCombinedArea);
&kidDesiredSize.mOverflowArea);
aKidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
return rv;
}

172
mozilla/layout/html/base/src/nsAbsoluteContainingBlock.cpp
View File

@@ -19,10 +19,10 @@
*
* Contributor(s):
*/
#include "nsCOMPtr.h"
#include "nsAbsoluteContainingBlock.h"
#include "nsContainerFrame.h"
#include "nsHTMLIIDs.h"
#include "nsIAreaFrame.h"
#include "nsIReflowCommand.h"
#include "nsIStyleContext.h"
#include "nsIViewManager.h"
@@ -30,8 +30,8 @@
#include "nsIReflowCommand.h"
#include "nsIPresShell.h"
#include "nsHTMLParts.h"
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
#include "nsIPresContext.h"
#include "nsIFrameManager.h"
nsresult
nsAbsoluteContainingBlock::FirstChild(const nsIFrame* aDelegatingFrame,
@@ -127,13 +127,62 @@ nsAbsoluteContainingBlock::RemoveFrame(nsIFrame* aDelegatingFrame,
return result ? NS_OK : NS_ERROR_FAILURE;
}
// Destructor function for the collapse offset frame property
static void
DestroyRectFunc(nsIPresContext* aPresContext,
nsIFrame* aFrame,
nsIAtom* aPropertyName,
void* aPropertyValue)
{
delete (nsRect*)aPropertyValue;
}
static nsRect*
GetOverflowAreaProperty(nsIPresContext* aPresContext,
nsIFrame* aFrame,
PRBool aCreateIfNecessary = PR_FALSE)
{
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
if (presShell) {
nsCOMPtr<nsIFrameManager> frameManager;
presShell->GetFrameManager(getter_AddRefs(frameManager));
if (frameManager) {
void* value;
frameManager->GetFrameProperty(aFrame, nsLayoutAtoms::overflowAreaProperty,
0, &value);
if (value) {
return (nsRect*)value; // the property already exists
} else if (aCreateIfNecessary) {
// The property isn't set yet, so allocate a new rect, set the property,
// and return the newly allocated rect
nsRect* overflow = new nsRect(0, 0, 0, 0);
frameManager->SetFrameProperty(aFrame, nsLayoutAtoms::overflowAreaProperty,
overflow, DestroyRectFunc);
return overflow;
}
}
}
return nsnull;
}
nsresult
nsAbsoluteContainingBlock::Reflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight)
nscoord aContainingBlockHeight,
nsRect& aChildBounds)
{
// Initialize OUT parameter
aChildBounds.SetRect(0, 0, 0, 0);
// Make a copy of the reflow state. If the reason is eReflowReason_Incremental,
// then change it to eReflowReason_Resize
nsHTMLReflowState reflowState(aReflowState);
@@ -147,20 +196,73 @@ nsAbsoluteContainingBlock::Reflow(nsIFrame* aDelegatingFrame,
nsReflowStatus kidStatus;
ReflowAbsoluteFrame(aDelegatingFrame, aPresContext, reflowState, aContainingBlockWidth,
aContainingBlockHeight, kidFrame, PR_FALSE, kidStatus);
// Add in the child's bounds
nsRect kidBounds;
kidFrame->GetRect(kidBounds);
aChildBounds.UnionRect(aChildBounds, kidBounds);
// If the frame has visible overflow, then take it into account, too.
nsFrameState kidFrameState;
kidFrame->GetFrameState(&kidFrameState);
if (kidFrameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, kidFrame);
if (overflowArea) {
// The overflow area is in the child's coordinate space, so translate
// it into the parent's coordinate space
nsRect rect(*overflowArea);
rect.MoveBy(kidBounds.x, kidBounds.y);
aChildBounds.UnionRect(aChildBounds, rect);
}
}
}
return NS_OK;
}
void
nsAbsoluteContainingBlock::CalculateChildBounds(nsIPresContext* aPresContext,
nsRect& aChildBounds)
{
for (nsIFrame* f = mAbsoluteFrames.FirstChild(); f; f->GetNextSibling(&f)) {
// Add in the child's bounds
nsRect bounds;
f->GetRect(bounds);
aChildBounds.UnionRect(aChildBounds, bounds);
// If the frame has visible overflow, then take it into account, too.
nsFrameState frameState;
f->GetFrameState(&frameState);
if (frameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, f);
if (overflowArea) {
// The overflow area is in the child's coordinate space, so translate
// it into the parent's coordinate space
nsRect rect(*overflowArea);
rect.MoveBy(bounds.x, bounds.y);
aChildBounds.UnionRect(aChildBounds, rect);
}
}
}
}
nsresult
nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight,
PRBool& aWasHandled)
PRBool& aWasHandled,
nsRect& aChildBounds)
{
// Initialize the OUT paremeter
// Initialize the OUT paremeters
aWasHandled = PR_FALSE;
aChildBounds.SetRect(0, 0, 0, 0);
// See if the reflow command is targeted at us
nsIFrame* targetFrame;
@@ -204,6 +306,9 @@ nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatin
// Indicate we handled the reflow command
aWasHandled = PR_TRUE;
// Calculate the total child bounds
CalculateChildBounds(aPresContext, aChildBounds);
}
} else {
@@ -226,6 +331,9 @@ nsAbsoluteContainingBlock::IncrementalReflow(nsIFrame* aDelegatin
// because it has a view if it changes size the view manager will
// damage the dirty area
aWasHandled = PR_TRUE;
// Calculate the total child bounds
CalculateChildBounds(aPresContext, aChildBounds);
}
}
@@ -272,7 +380,6 @@ nsAbsoluteContainingBlock::ReflowAbsoluteFrame(nsIFrame* aDelegat
kidReflowState.reason = eReflowReason_Initial;
}
// XXX TROY
// Send the WillReflow() notification and position the frame
aKidFrame->WillReflow(aPresContext);
aKidFrame->MoveTo(aPresContext,
@@ -382,49 +489,22 @@ nsAbsoluteContainingBlock::ReflowAbsoluteFrame(nsIFrame* aDelegat
// Size and position the view and set its opacity, visibility, content
// transparency, and clip
nsContainerFrame::SyncFrameViewAfterReflow(aPresContext, aKidFrame, kidView,
&kidDesiredSize.mCombinedArea);
&kidDesiredSize.mOverflowArea);
aKidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
return rv;
}
nsresult
nsAbsoluteContainingBlock::GetPositionedInfo(const nsIFrame* aDelegatingFrame,
nscoord& aXMost,
nscoord& aYMost) const
{
aXMost = aYMost = 0;
for (nsIFrame* f = mAbsoluteFrames.FirstChild(); nsnull != f; f->GetNextSibling(&f)) {
// Get the frame's x-most and y-most. This is for its flowed content only
nsRect rect;
f->GetRect(rect);
// If the frame has visible overflow, then store it as a property on the
// frame. This allows us to be able to recover it without having to reflow
// the frame
nsFrameState kidFrameState;
aKidFrame->GetFrameState(&kidFrameState);
if (kidFrameState & NS_FRAME_OUTSIDE_CHILDREN) {
// Get the property (creating a rect struct if necessary)
nsRect* overflowArea = ::GetOverflowAreaProperty(aPresContext, aKidFrame, PR_TRUE);
if (rect.XMost() > aXMost) {
aXMost = rect.XMost();
}
if (rect.YMost() > aYMost) {
aYMost = rect.YMost();
}
// If the child frame is also an area frame, then take into account its child
// absolutely positioned elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(f->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
// Convert to our coordinate space
xMost += rect.x;
yMost += rect.y;
if (xMost > aXMost) {
aXMost = xMost;
}
if (yMost > aYMost) {
aYMost = yMost;
}
if (overflowArea) {
*overflowArea = kidDesiredSize.mOverflowArea;
}
}
return NS_OK;
return rv;
}

22
mozilla/layout/html/base/src/nsAbsoluteContainingBlock.h
View File

@@ -71,31 +71,35 @@ public:
// Called by the delegating frame after it has done its reflow first. This
// function will reflow any absolutely positioned child frames that need to
// be reflowed, e.g., because the absolutely positioned child frame has
// 'auto' for an offset, or a percentage based width or height
// 'auto' for an offset, or a percentage based width or height.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible)
nsresult Reflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight);
nscoord aContainingBlockHeight,
nsRect& aChildBounds);
// Called only for a reflow reason of eReflowReason_Incremental. The
// aWasHandled return value indicates whether the reflow command was
// handled (i.e., the reflow command involved an absolutely positioned
// child element), or whether the caller should handle it
// child element), or whether the caller should handle it.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible). This is only set if the reflow command was handled
nsresult IncrementalReflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight,
PRBool& aWasHandled);
PRBool& aWasHandled,
nsRect& aChildBounds);
void DestroyFrames(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext);
nsresult GetPositionedInfo(const nsIFrame* aDelegatingFrame,
nscoord& aXMost,
nscoord& aYMost) const;
protected:
nsresult ReflowAbsoluteFrame(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
@@ -106,6 +110,8 @@ protected:
PRBool aInitialReflow,
nsReflowStatus& aStatus);
void CalculateChildBounds(nsIPresContext* aPresContext, nsRect& aChildBounds);
protected:
nsFrameList mAbsoluteFrames; // additional named child list
};

114
mozilla/layout/html/base/src/nsAreaFrame.cpp
View File

@@ -59,23 +59,6 @@ nsAreaFrame::nsAreaFrame()
{
}
/////////////////////////////////////////////////////////////////////////////
// nsISupports
NS_IMETHODIMP
nsAreaFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIAreaFrameIID)) {
nsIAreaFrame* tmp = (nsIAreaFrame*)this;
*aInstancePtr = (void*)tmp;
return NS_OK;
}
return nsBlockFrame::QueryInterface(aIID, aInstancePtr);
}
/////////////////////////////////////////////////////////////////////////////
// nsIFrame
@@ -186,32 +169,6 @@ nsAreaFrame::FirstChild(nsIAtom* aListName, nsIFrame** aFirstChild) const
return nsBlockFrame::FirstChild(aListName, aFirstChild);
}
// Return the x-most and y-most for the child absolutely positioned
// elements
NS_IMETHODIMP
nsAreaFrame::GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const
{
nsresult rv = mAbsoluteContainer.GetPositionedInfo(this, aXMost, aYMost);
// If we have child frames that stick outside of our box, and they should
// be visible, then include them too so the total size is correct
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
const nsStyleDisplay* display = (const nsStyleDisplay*)
mStyleContext->GetStyleData(eStyleStruct_Display);
if (NS_STYLE_OVERFLOW_VISIBLE == display->mOverflow) {
if (mCombinedArea.XMost() > aXMost) {
aXMost = mCombinedArea.XMost();
}
if (mCombinedArea.YMost() > aYMost) {
aYMost = mCombinedArea.YMost();
}
}
}
return rv;
}
static void
CalculateContainingBlock(const nsHTMLReflowState& aReflowState,
nscoord aFrameWidth,
@@ -244,7 +201,7 @@ CalculateContainingBlock(const nsHTMLReflowState& aReflowState,
NS_IMETHODIMP
nsAreaFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
@@ -262,31 +219,55 @@ nsAreaFrame::Reflow(nsIPresContext* aPresContext,
nscoord containingBlockWidth;
nscoord containingBlockHeight;
PRBool handled;
nsRect childBounds;
CalculateContainingBlock(aReflowState, mRect.width, mRect.height,
containingBlockWidth, containingBlockHeight);
mAbsoluteContainer.IncrementalReflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight,
handled);
handled, childBounds);
// If the incremental reflow command was handled by the absolute positioning
// code, then we're all done
if (handled) {
// Just return our current size as our desired size
aDesiredSize.width = mRect.width;
aDesiredSize.height = mRect.height;
aDesiredSize.ascent = mRect.height;
aDesiredSize.descent = 0;
// Just return our current size as our desired size.
// XXX We need to know the overflow area for the flowed content, and
// we don't have a way to get that currently so for the time being pretend
// a resize reflow occured
#if 0
aMetrics.width = mRect.width;
aMetrics.height = mRect.height;
aMetrics.ascent = mRect.height;
aMetrics.descent = 0;
// Whether or not we're complete hasn't changed
aStatus = (nsnull != mNextInFlow) ? NS_FRAME_NOT_COMPLETE : NS_FRAME_COMPLETE;
#else
nsHTMLReflowState reflowState(aReflowState);
reflowState.reason = eReflowReason_Resize;
reflowState.reflowCommand = nsnull;
rv = nsBlockFrame::Reflow(aPresContext, aMetrics, reflowState, aStatus);
#endif
// Factor the absolutely positioned child bounds into the overflow area
aMetrics.mOverflowArea.UnionRect(aMetrics.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
return rv;
}
}
// Let the block frame do its reflow first
rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
rv = nsBlockFrame::Reflow(aPresContext, aMetrics, aReflowState, aStatus);
// Let the absolutely positioned container reflow any absolutely positioned
// child frames that need to be reflowed, e.g., elements with a percentage
@@ -294,28 +275,37 @@ nsAreaFrame::Reflow(nsIPresContext* aPresContext,
if (NS_SUCCEEDED(rv)) {
nscoord containingBlockWidth;
nscoord containingBlockHeight;
nsRect childBounds;
CalculateContainingBlock(aReflowState, aDesiredSize.width, aDesiredSize.height,
CalculateContainingBlock(aReflowState, aMetrics.width, aMetrics.height,
containingBlockWidth, containingBlockHeight);
rv = mAbsoluteContainer.Reflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight);
containingBlockWidth, containingBlockHeight,
childBounds);
// Factor the absolutely positioned child bounds into the overflow area
aMetrics.mOverflowArea.UnionRect(aMetrics.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
}
#ifdef NOISY_MAX_ELEMENT_SIZE
ListTag(stdout);
printf(": maxElementSize=%d,%d desiredSize=%d,%d\n",
aDesiredSize.maxElementSize ? aDesiredSize.maxElementSize->width : 0,
aDesiredSize.maxElementSize ? aDesiredSize.maxElementSize->height : 0,
aDesiredSize.width, aDesiredSize.height);
aMetrics.maxElementSize ? aMetrics.maxElementSize->width : 0,
aMetrics.maxElementSize ? aMetrics.maxElementSize->height : 0,
aMetrics.width, aMetrics.height);
#endif
// If we have children that stick outside our box, then remember the
// combined area, because we'll need it later when sizing our view
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
mCombinedArea = aDesiredSize.mCombinedArea;
}
return rv;
}

10
mozilla/layout/html/base/src/nsAreaFrame.h
View File

@@ -24,7 +24,6 @@
#include "nsBlockFrame.h"
#include "nsVoidArray.h"
#include "nsIAreaFrame.h"
#include "nsAbsoluteContainingBlock.h"
class nsSpaceManager;
@@ -44,14 +43,11 @@ struct nsStylePosition;
*
* @see nsLayoutAtoms::absoluteList
*/
class nsAreaFrame : public nsBlockFrame, public nsIAreaFrame
class nsAreaFrame : public nsBlockFrame
{
public:
friend nsresult NS_NewAreaFrame(nsIPresShell* aPresShell, nsIFrame** aResult, PRUint32 aFlags);
// nsISupports
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
// nsIFrame
NS_IMETHOD Destroy(nsIPresContext* aPresContext);
@@ -94,15 +90,11 @@ public:
NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
#endif
// nsIAreaFrame
NS_IMETHOD GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const;
protected:
nsAreaFrame();
private:
nsAbsoluteContainingBlock mAbsoluteContainer;
nsRect mCombinedArea;
};
#endif /* nsAreaFrame_h___ */

33
mozilla/layout/html/base/src/nsBlockFrame.cpp
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

24
mozilla/layout/html/base/src/nsBlockReflowContext.cpp
View File

@@ -317,11 +317,11 @@ nsBlockReflowContext::ReflowBlock(nsIFrame* aFrame,
aFrame->GetFrameState(&state);
if (0 == (NS_FRAME_OUTSIDE_CHILDREN & state)) {
// Provide combined area for child that doesn't have any
mMetrics.mCombinedArea.x = 0;
mMetrics.mCombinedArea.y = 0;
mMetrics.mCombinedArea.width = mMetrics.width;
mMetrics.mCombinedArea.height = mMetrics.height;
// Provide overflow area for child that doesn't have any
mMetrics.mOverflowArea.x = 0;
mMetrics.mOverflowArea.y = 0;
mMetrics.mOverflowArea.width = mMetrics.width;
mMetrics.mOverflowArea.height = mMetrics.height;
}
// Now that frame has been reflowed at least one time make sure that
@@ -376,8 +376,8 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
nscoord x = mX;
nscoord y = mY;
// When deciding whether it's an empty paragraph we also need to take into
// account the combined area
if ((0 == mMetrics.height) && (0 == mMetrics.mCombinedArea.height)) {
// account the overflow area
if ((0 == mMetrics.height) && (0 == mMetrics.mOverflowArea.height)) {
if (IsHTMLParagraph(mFrame)) {
// Special "feature" for HTML compatability - empty paragraphs
// collapse into nothingness, including their margins. Signal
@@ -432,7 +432,7 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
// Retain combined area information in case we contain a floater
// and nothing else.
aCombinedRect = mMetrics.mCombinedArea;
aCombinedRect = mMetrics.mOverflowArea;
aCombinedRect.x += x;
aCombinedRect.y += y;
}
@@ -549,10 +549,10 @@ nsBlockReflowContext::PlaceBlock(PRBool aForceFit,
// Compute combined-rect in callers coordinate system. The value
// returned in the reflow metrics is relative to the child
// frame.
aCombinedRect.x = mMetrics.mCombinedArea.x + x;
aCombinedRect.y = mMetrics.mCombinedArea.y + y;
aCombinedRect.width = mMetrics.mCombinedArea.width;
aCombinedRect.height = mMetrics.mCombinedArea.height;
aCombinedRect.x = mMetrics.mOverflowArea.x + x;
aCombinedRect.y = mMetrics.mOverflowArea.y + y;
aCombinedRect.width = mMetrics.mOverflowArea.width;
aCombinedRect.height = mMetrics.mOverflowArea.height;
// Now place the frame and complete the reflow process
nsContainerFrame::FinishReflowChild(mFrame, mPresContext, mMetrics, x, y, 0);

33
mozilla/layout/html/base/src/nsBlockReflowState.cpp
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

33
mozilla/layout/html/base/src/nsBlockReflowState.h
View File

@@ -1511,7 +1511,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
// children, make sure its big enough to include those that stick
// outside the box.
if (NS_FRAME_OUTSIDE_CHILDREN & mState) {
nscoord xMost = aMetrics.mCombinedArea.XMost();
nscoord xMost = aMetrics.mOverflowArea.XMost();
if (xMost > aMetrics.width) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1519,7 +1519,7 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
#endif
aMetrics.width = xMost;
}
nscoord yMost = aMetrics.mCombinedArea.YMost();
nscoord yMost = aMetrics.mOverflowArea.YMost();
if (yMost > aMetrics.height) {
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -1622,10 +1622,10 @@ nsBlockFrame::Reflow(nsIPresContext* aPresContext,
aMetrics.mCarriedOutBottomMargin);
if (mState & NS_FRAME_OUTSIDE_CHILDREN) {
printf(" combinedArea={%d,%d,%d,%d}",
aMetrics.mCombinedArea.x,
aMetrics.mCombinedArea.y,
aMetrics.mCombinedArea.width,
aMetrics.mCombinedArea.height);
aMetrics.mOverflowArea.x,
aMetrics.mOverflowArea.y,
aMetrics.mOverflowArea.width,
aMetrics.mOverflowArea.height);
}
if (aMetrics.maxElementSize) {
printf(" maxElementSize=%d,%d",
@@ -1969,14 +1969,14 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
// If the combined area of our children exceeds our bounding box
// then set the NS_FRAME_OUTSIDE_CHILDREN flag, otherwise clear it.
aMetrics.mCombinedArea.x = xa;
aMetrics.mCombinedArea.y = ya;
aMetrics.mCombinedArea.width = xb - xa;
aMetrics.mCombinedArea.height = yb - ya;
if ((aMetrics.mCombinedArea.x < 0) ||
(aMetrics.mCombinedArea.y < 0) ||
(aMetrics.mCombinedArea.XMost() > aMetrics.width) ||
(aMetrics.mCombinedArea.YMost() > aMetrics.height)) {
aMetrics.mOverflowArea.x = xa;
aMetrics.mOverflowArea.y = ya;
aMetrics.mOverflowArea.width = xb - xa;
aMetrics.mOverflowArea.height = yb - ya;
if ((aMetrics.mOverflowArea.x < 0) ||
(aMetrics.mOverflowArea.y < 0) ||
(aMetrics.mOverflowArea.XMost() > aMetrics.width) ||
(aMetrics.mOverflowArea.YMost() > aMetrics.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
}
else {
@@ -2000,6 +2000,7 @@ nsBlockFrame::PrepareChildIncrementalReflow(nsBlockReflowState& aState)
// XXX Huh, that's not true anymore. We do cache the width component of
// the max-element-size...
if (aState.mComputeMaxElementSize) {
printf("BLOCK: marking all child frames dirty...\n");
return PrepareResizeReflow(aState);
}
@@ -4875,7 +4876,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
aMarginResult.left = m.left;
const nsHTMLReflowMetrics& metrics = brc.GetMetrics();
aCombinedRect = metrics.mCombinedArea;
aCombinedRect = metrics.mOverflowArea;
// Set the rect, make sure the view is properly sized and positioned,
// and tell the frame we're done reflowing it
floater->SizeTo(aState.mPresContext, metrics.width, metrics.height);
@@ -4883,7 +4884,7 @@ nsBlockFrame::ReflowFloater(nsBlockReflowState& aState,
floater->GetView(aState.mPresContext, &view);
if (view) {
nsContainerFrame::SyncFrameViewAfterReflow(aState.mPresContext, floater, view,
&metrics.mCombinedArea,
&metrics.mOverflowArea,
NS_FRAME_NO_MOVE_VIEW);
}
floater->DidReflow(aState.mPresContext, NS_FRAME_REFLOW_FINISHED);

2
mozilla/layout/html/base/src/nsContainerFrame.cpp
View File

@@ -718,7 +718,7 @@ nsContainerFrame::FinishReflowChild(nsIFrame* aKidFrame,
// Make sure the frame's view is properly sized and positioned and has
// things like opacity correct
SyncFrameViewAfterReflow(aPresContext, aKidFrame, view,
&aDesiredSize.mCombinedArea,
&aDesiredSize.mOverflowArea,
aFlags);
} else if (0 == (aFlags & NS_FRAME_NO_MOVE_CHILD_VIEWS)) {

8
mozilla/layout/html/base/src/nsFrame.cpp
View File

@@ -1567,10 +1567,10 @@ nsFrame::IsFrameTreeTooDeep(const nsHTMLReflowState& aReflowState,
aMetrics.ascent = 0;
aMetrics.descent = 0;
aMetrics.mCarriedOutBottomMargin = 0;
aMetrics.mCombinedArea.x = 0;
aMetrics.mCombinedArea.y = 0;
aMetrics.mCombinedArea.width = 0;
aMetrics.mCombinedArea.height = 0;
aMetrics.mOverflowArea.x = 0;
aMetrics.mOverflowArea.y = 0;
aMetrics.mOverflowArea.width = 0;
aMetrics.mOverflowArea.height = 0;
if (aMetrics.maxElementSize) {
aMetrics.maxElementSize->width = 0;
aMetrics.maxElementSize->height = 0;

21
mozilla/layout/html/base/src/nsGfxScrollFrame.cpp
View File

@@ -34,7 +34,6 @@
#include "nsCSSRendering.h"
#include "nsIScrollableView.h"
#include "nsWidgetsCID.h"
#include "nsIAreaFrame.h"
#include "nsGfxScrollFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIXMLContent.h"
@@ -54,7 +53,6 @@ static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
static NS_DEFINE_IID(kIAnonymousContentCreatorIID, NS_IANONYMOUS_CONTENT_CREATOR_IID);
@@ -893,23 +891,8 @@ nsGfxScrollFrameInner::CalculateChildTotalSize(nsIFrame* aKidFrame,
nsFrameState kidState;
aKidFrame->GetFrameState(&kidState);
if (NS_FRAME_OUTSIDE_CHILDREN & kidState) {
aKidReflowMetrics.width = aKidReflowMetrics.mCombinedArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mCombinedArea.height;
}
// If it's an area frame, then get the total size which includes the
// space taken up by absolutely positioned child elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(aKidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
if (xMost > aKidReflowMetrics.width) {
aKidReflowMetrics.width = xMost;
}
if (yMost > aKidReflowMetrics.height) {
aKidReflowMetrics.height = yMost;
}
aKidReflowMetrics.width = aKidReflowMetrics.mOverflowArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mOverflowArea.height;
}
return NS_OK;

30
mozilla/layout/html/base/src/nsHTMLFrame.cpp
View File

@@ -41,12 +41,10 @@
#include "nsIEventStateManager.h"
#include "nsIDeviceContext.h"
#include "nsIScrollableView.h"
#include "nsIAreaFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIPresShell.h"
// Interface IDs
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
@@ -345,36 +343,16 @@ RootFrame::Reflow(nsIPresContext* aPresContext,
nscoord paddingEdgeX = kidDesiredSize.width - border.right;
nscoord paddingEdgeY = kidDesiredSize.height - border.bottom;
if (kidDesiredSize.mCombinedArea.XMost() > paddingEdgeX) {
kidDesiredSize.width = kidDesiredSize.mCombinedArea.XMost() +
if (kidDesiredSize.mOverflowArea.XMost() > paddingEdgeX) {
kidDesiredSize.width = kidDesiredSize.mOverflowArea.XMost() +
border.right;
}
if (kidDesiredSize.mCombinedArea.YMost() > paddingEdgeY) {
kidDesiredSize.height = kidDesiredSize.mCombinedArea.YMost() +
if (kidDesiredSize.mOverflowArea.YMost() > paddingEdgeY) {
kidDesiredSize.height = kidDesiredSize.mOverflowArea.YMost() +
border.bottom;
}
}
// XXX It would be nice if this were also part of the reflow metrics...
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(kidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
// Get the x-most and y-most of the absolutely positioned children
nscoord positionedXMost, positionedYMost;
areaFrame->GetPositionedInfo(positionedXMost, positionedYMost);
// The background covers the content area and padding area, so check
// for children sticking outside the padding edge
nscoord paddingEdgeX = kidDesiredSize.width - border.right;
nscoord paddingEdgeY = kidDesiredSize.height - border.bottom;
if (positionedXMost > paddingEdgeX) {
kidDesiredSize.width = positionedXMost + border.right;
}
if (positionedYMost > paddingEdgeY) {
kidDesiredSize.height = positionedYMost + border.bottom;
}
}
// If our height is fixed, then make sure the child frame plus its top and
// bottom margin is at least that high as well...
if (NS_AUTOHEIGHT != aReflowState.mComputedHeight) {

2
mozilla/layout/html/base/src/nsHTMLIIDs.cpp
View File

@@ -23,10 +23,8 @@
#include "nsIHTMLContent.h"
#include "nsIPageSequenceFrame.h"
#include "nsITextContent.h"
#include "nsIAreaFrame.h"
const nsIID kIHTMLContentIID = NS_IHTMLCONTENT_IID;
const nsIID kIPageSequenceFrameIID = NS_IPAGESEQUENCEFRAME_IID;
const nsIID kIStyledContentIID = NS_ISTYLEDCONTENT_IID;
const nsIID kITextContentIID = NS_ITEXT_CONTENT_IID;
const nsIID kIAreaFrameIID = NS_IAREAFRAME_IID;

45
mozilla/layout/html/base/src/nsIAreaFrame.h
View File

@@ -1,45 +0,0 @@
/* -*- 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):
*/
#ifndef nsIAreaFrame_h___
#define nsIAreaFrame_h___
#include "nsIFrame.h"
// 7327a0a0-bc8d-11d1-8539-00a02468fab6
#define NS_IAREAFRAME_IID \
{ 0xa6cf90de, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
/**
* An interface for managing anchored items. Note that this interface is not
* an nsISupports interface, and therefore you cannot QueryInterface() back
*/
class nsIAreaFrame
{
public:
/**
* Returns the x-most and y-most for the child absoolutely positioned
* elements
*/
NS_IMETHOD GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const = 0;
};
#endif /* nsIAreaFrame_h___ */

54
mozilla/layout/html/base/src/nsInlineFrame.cpp
View File

@@ -461,12 +461,12 @@ nsInlineFrame::ReflowFrames(nsIPresContext* aPresContext,
}
}
// For now our combined area is zero. The real value will be
// For now our overflow area is zero. The real value will be
// computed during vertical alignment of the line we are on.
aMetrics.mCombinedArea.x = 0;
aMetrics.mCombinedArea.y = 0;
aMetrics.mCombinedArea.width = aMetrics.width;
aMetrics.mCombinedArea.height = aMetrics.height;
aMetrics.mOverflowArea.x = 0;
aMetrics.mOverflowArea.y = 0;
aMetrics.mOverflowArea.width = aMetrics.width;
aMetrics.mOverflowArea.height = aMetrics.height;
#ifdef NOISY_FINAL_SIZE
ListTag(stdout);
@@ -973,12 +973,13 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
if (eReflowReason_Incremental == aReflowState.reason) {
// Give the absolute positioning code a chance to handle it
PRBool handled;
nsRect childBounds;
nscoord containingBlockWidth = -1;
nscoord containingBlockHeight = -1;
mAbsoluteContainer.IncrementalReflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight,
handled);
handled, childBounds);
// If the incremental reflow command was handled by the absolute positioning
// code, then we're all done
@@ -989,7 +990,25 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowState reflowState(aReflowState);
reflowState.reason = eReflowReason_Resize;
reflowState.reflowCommand = nsnull;
return nsInlineFrame::Reflow(aPresContext, aDesiredSize, reflowState, aStatus);
rv = nsInlineFrame::Reflow(aPresContext, aDesiredSize, reflowState, aStatus);
// XXX Although this seems like the correct thing to do the line layout
// code seems to reset the NS_FRAME_OUTSIDE_CHILDREN and so it is ignored
#if 0
// Factor the absolutely positioned child bounds into the overflow area
aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aDesiredSize.mOverflowArea.x < 0) ||
(aDesiredSize.mOverflowArea.y < 0) ||
(aDesiredSize.mOverflowArea.XMost() > aDesiredSize.width) ||
(aDesiredSize.mOverflowArea.YMost() > aDesiredSize.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
#endif
return rv;
}
}
@@ -1001,9 +1020,28 @@ nsPositionedInlineFrame::Reflow(nsIPresContext* aPresContext,
if (NS_SUCCEEDED(rv)) {
nscoord containingBlockWidth = -1;
nscoord containingBlockHeight = -1;
nsRect childBounds;
rv = mAbsoluteContainer.Reflow(this, aPresContext, aReflowState,
containingBlockWidth, containingBlockHeight);
containingBlockWidth, containingBlockHeight,
childBounds);
// XXX Although this seems like the correct thing to do the line layout
// code seems to reset the NS_FRAME_OUTSIDE_CHILDREN and so it is ignored
#if 0
// Factor the absolutely positioned child bounds into the overflow area
aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, childBounds);
// Make sure the NS_FRAME_OUTSIDE_CHILDREN flag is set correctly
if ((aDesiredSize.mOverflowArea.x < 0) ||
(aDesiredSize.mOverflowArea.y < 0) ||
(aDesiredSize.mOverflowArea.XMost() > aDesiredSize.width) ||
(aDesiredSize.mOverflowArea.YMost() > aDesiredSize.height)) {
mState |= NS_FRAME_OUTSIDE_CHILDREN;
} else {
mState &= ~NS_FRAME_OUTSIDE_CHILDREN;
}
#endif
}
return rv;

4
mozilla/layout/html/base/src/nsLineLayout.cpp
View File

@@ -1062,7 +1062,7 @@ nsLineLayout::ReflowFrame(nsIFrame* aFrame,
aFrame->GetFrameState(&state);
if (NS_FRAME_OUTSIDE_CHILDREN & state) {
pfd->mCombinedArea = metrics.mCombinedArea;
pfd->mCombinedArea = metrics.mOverflowArea;
}
else {
pfd->mCombinedArea.x = 0;
@@ -1480,7 +1480,7 @@ nsLineLayout::AddBulletFrame(nsIFrame* aFrame,
// Note: y value will be updated during vertical alignment
aFrame->GetRect(pfd->mBounds);
pfd->mCombinedArea = aMetrics.mCombinedArea;
pfd->mCombinedArea = aMetrics.mOverflowArea;
if (mComputeMaxElementSize) {
pfd->mMaxElementSize.SizeTo(aMetrics.width, aMetrics.height);
}

21
mozilla/layout/html/base/src/nsScrollFrame.cpp
View File

@@ -34,7 +34,6 @@
#include "nsCSSRendering.h"
#include "nsIScrollableView.h"
#include "nsWidgetsCID.h"
#include "nsIAreaFrame.h"
#include "nsScrollFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIWebShell.h"
@@ -50,7 +49,6 @@ static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
//----------------------------------------------------------------------
@@ -437,23 +435,8 @@ nsScrollFrame::CalculateChildTotalSize(nsIFrame* aKidFrame,
nsFrameState kidState;
aKidFrame->GetFrameState(&kidState);
if (NS_FRAME_OUTSIDE_CHILDREN & kidState) {
aKidReflowMetrics.width = aKidReflowMetrics.mCombinedArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mCombinedArea.height;
}
// If it's an area frame, then get the total size which includes the
// space taken up by absolutely positioned child elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(aKidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
if (xMost > aKidReflowMetrics.width) {
aKidReflowMetrics.width = xMost;
}
if (yMost > aKidReflowMetrics.height) {
aKidReflowMetrics.height = yMost;
}
aKidReflowMetrics.width = aKidReflowMetrics.mOverflowArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mOverflowArea.height;
}
return NS_OK;

21
mozilla/layout/html/base/src/nsScrollPortFrame.cpp
View File

@@ -34,7 +34,6 @@
#include "nsCSSRendering.h"
#include "nsIScrollableView.h"
#include "nsWidgetsCID.h"
#include "nsIAreaFrame.h"
#include "nsScrollPortFrame.h"
#include "nsLayoutAtoms.h"
#include "nsIBox.h"
@@ -58,7 +57,6 @@ static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
//----------------------------------------------------------------------
@@ -311,23 +309,8 @@ nsScrollPortFrame::CalculateChildTotalSize(nsIFrame* aKidFrame,
nsFrameState kidState;
aKidFrame->GetFrameState(&kidState);
if (NS_FRAME_OUTSIDE_CHILDREN & kidState) {
aKidReflowMetrics.width = aKidReflowMetrics.mCombinedArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mCombinedArea.height;
}
// If it's an area frame, then get the total size which includes the
// space taken up by absolutely positioned child elements
nsIAreaFrame* areaFrame;
if (NS_SUCCEEDED(aKidFrame->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
nscoord xMost, yMost;
areaFrame->GetPositionedInfo(xMost, yMost);
if (xMost > aKidReflowMetrics.width) {
aKidReflowMetrics.width = xMost;
}
if (yMost > aKidReflowMetrics.height) {
aKidReflowMetrics.height = yMost;
}
aKidReflowMetrics.width = aKidReflowMetrics.mOverflowArea.width;
aKidReflowMetrics.height = aKidReflowMetrics.mOverflowArea.height;
}
return NS_OK;

3
mozilla/layout/html/base/src/nsSelectsAreaFrame.cpp
View File

@@ -23,9 +23,6 @@
#include "nsCOMPtr.h"
#include "nsIDOMHTMLOptionElement.h"
#include "nsIContent.h"
#include "nsIAreaFrame.h"
static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
nsresult
NS_NewSelectsAreaFrame(nsIPresShell* aShell, nsIFrame** aNewFrame, PRUint32 aFlags)

2
mozilla/layout/html/base/src/nsViewportFrame.cpp
View File

@@ -375,7 +375,7 @@ ViewportFrame::ReflowFixedFrame(nsIPresContext* aPresContext,
// Size and position the view and set its opacity, visibility, content
// transparency, and clip
nsContainerFrame::SyncFrameViewAfterReflow(aPresContext, aKidFrame, kidView,
&kidDesiredSize.mCombinedArea);
&kidDesiredSize.mOverflowArea);
aKidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
return rv;
}

4
mozilla/layout/xul/base/src/nsBoxFrame.cpp
View File

@@ -1130,8 +1130,8 @@ nsBoxFrame::FlowChildAt(nsIFrame* childFrame,
// printf("width: %d, height: %d\n", desiredSize.mCombinedArea.width, desiredSize.mCombinedArea.height);
if (kidState & NS_FRAME_OUTSIDE_CHILDREN) {
desiredSize.width = desiredSize.mCombinedArea.width;
desiredSize.height = desiredSize.mCombinedArea.height;
desiredSize.width = desiredSize.mOverflowArea.width;
desiredSize.height = desiredSize.mOverflowArea.height;
}