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gecko-dev/layout/tables/nsTableOuterFrame.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsTableOuterFrame.h"
#include "nsTableFrame.h"
#include "nsStyleContext.h"
#include "nsStyleConsts.h"
#include "nsPresContext.h"
#include "nsCSSRendering.h"
#include "nsIContent.h"
#include "prinrval.h"
#include "nsGkAtoms.h"
#include "nsHTMLParts.h"
#include "nsIPresShell.h"
#ifdef ACCESSIBILITY
#include "nsAccessibilityService.h"
#endif
#include "nsIServiceManager.h"
#include "nsIDOMNode.h"
#include "nsDisplayList.h"
#include "nsLayoutUtils.h"
/* ----------- nsTableCaptionFrame ---------- */
#define NS_TABLE_FRAME_CAPTION_LIST_INDEX 0
#define NO_SIDE 100
// caption frame
nsTableCaptionFrame::nsTableCaptionFrame(nsStyleContext* aContext):
nsBlockFrame(aContext)
{
// shrink wrap
SetFlags(NS_BLOCK_FLOAT_MGR);
}
nsTableCaptionFrame::~nsTableCaptionFrame()
{
}
nsIAtom*
nsTableCaptionFrame::GetType() const
{
return nsGkAtoms::tableCaptionFrame;
}
/* virtual */ nscoord
nsTableOuterFrame::GetBaseline() const
{
nsIFrame* kid = mFrames.FirstChild();
if (!kid) {
NS_NOTREACHED("no inner table");
return nsHTMLContainerFrame::GetBaseline();
}
return kid->GetBaseline() + kid->GetPosition().y;
}
/* virtual */ nsSize
nsTableCaptionFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
nsSize aCBSize, nscoord aAvailableWidth,
nsSize aMargin, nsSize aBorder,
nsSize aPadding, PRBool aShrinkWrap)
{
nsSize result = nsBlockFrame::ComputeAutoSize(aRenderingContext, aCBSize,
aAvailableWidth, aMargin, aBorder, aPadding, aShrinkWrap);
PRUint8 captionSide = GetStyleTableBorder()->mCaptionSide;
if (captionSide == NS_STYLE_CAPTION_SIDE_LEFT ||
captionSide == NS_STYLE_CAPTION_SIDE_RIGHT) {
result.width = GetMinWidth(aRenderingContext);
} else if (captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
// The outer frame constrains our available width to the width of
// the table. Grow if our min-width is bigger than that, but not
// larger than the containing block width. (It would really be nice
// to transmit that information another way, so we could grow up to
// the table's available width, but that's harder.)
nscoord min = GetMinWidth(aRenderingContext);
if (min > aCBSize.width)
min = aCBSize.width;
if (min > result.width)
result.width = min;
}
return result;
}
NS_IMETHODIMP
nsTableCaptionFrame::GetParentStyleContextFrame(nsPresContext* aPresContext,
nsIFrame** aProviderFrame,
PRBool* aIsChild)
{
NS_PRECONDITION(mContent->GetParent(),
"How could we not have a parent here?");
// The caption's style context parent is the inner frame, unless
// it's anonymous.
nsIFrame* outerFrame = GetParent();
if (outerFrame && outerFrame->GetType() == nsGkAtoms::tableOuterFrame) {
nsIFrame* innerFrame = outerFrame->GetFirstChild(nsnull);
if (innerFrame) {
*aProviderFrame =
nsFrame::CorrectStyleParentFrame(innerFrame,
GetStyleContext()->GetPseudo());
*aIsChild = PR_FALSE;
return NS_OK;
}
}
NS_NOTREACHED("Where is our inner table frame?");
return nsBlockFrame::GetParentStyleContextFrame(aPresContext, aProviderFrame,
aIsChild);
}
#ifdef ACCESSIBILITY
already_AddRefed<nsAccessible>
nsTableCaptionFrame::CreateAccessible()
{
if (!GetRect().IsEmpty()) {
nsAccessibilityService* accService = nsIPresShell::AccService();
if (accService) {
return accService->CreateHTMLCaptionAccessible(mContent,
PresContext()->PresShell());
}
}
return nsnull;
}
#endif
#ifdef NS_DEBUG
NS_IMETHODIMP
nsTableCaptionFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("Caption"), aResult);
}
#endif
nsIFrame*
NS_NewTableCaptionFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsTableCaptionFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsTableCaptionFrame)
/* ----------- nsTableOuterFrame ---------- */
nsTableOuterFrame::nsTableOuterFrame(nsStyleContext* aContext):
nsHTMLContainerFrame(aContext)
{
}
nsTableOuterFrame::~nsTableOuterFrame()
{
}
NS_QUERYFRAME_HEAD(nsTableOuterFrame)
NS_QUERYFRAME_ENTRY(nsITableLayout)
NS_QUERYFRAME_TAIL_INHERITING(nsHTMLContainerFrame)
#ifdef ACCESSIBILITY
already_AddRefed<nsAccessible>
nsTableOuterFrame::CreateAccessible()
{
nsAccessibilityService* accService = nsIPresShell::AccService();
if (accService) {
return accService->CreateHTMLTableAccessible(mContent,
PresContext()->PresShell());
}
return nsnull;
}
#endif
/* virtual */ PRBool
nsTableOuterFrame::IsContainingBlock() const
{
return PR_FALSE;
}
void
nsTableOuterFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
mCaptionFrames.DestroyFramesFrom(aDestructRoot);
nsHTMLContainerFrame::DestroyFrom(aDestructRoot);
}
nsFrameList
nsTableOuterFrame::GetChildList(nsIAtom* aListName) const
{
if (nsGkAtoms::captionList == aListName) {
return mCaptionFrames;
}
if (!aListName) {
return mFrames;
}
return nsFrameList::EmptyList();
}
nsIAtom*
nsTableOuterFrame::GetAdditionalChildListName(PRInt32 aIndex) const
{
if (aIndex == NS_TABLE_FRAME_CAPTION_LIST_INDEX) {
return nsGkAtoms::captionList;
}
return nsnull;
}
NS_IMETHODIMP
nsTableOuterFrame::SetInitialChildList(nsIAtom* aListName,
nsFrameList& aChildList)
{
if (nsGkAtoms::captionList == aListName) {
// the frame constructor already checked for table-caption display type
mCaptionFrames.SetFrames(aChildList);
mCaptionFrame = mCaptionFrames.FirstChild();
}
else {
NS_ASSERTION(!aListName, "wrong childlist");
NS_ASSERTION(mFrames.IsEmpty(), "Frame leak!");
mInnerTableFrame = nsnull;
if (aChildList.NotEmpty()) {
if (nsGkAtoms::tableFrame == aChildList.FirstChild()->GetType()) {
mInnerTableFrame = (nsTableFrame*)aChildList.FirstChild();
mFrames.SetFrames(aChildList);
}
else {
NS_ERROR("expected a table frame");
return NS_ERROR_INVALID_ARG;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsTableOuterFrame::AppendFrames(nsIAtom* aListName,
nsFrameList& aFrameList)
{
nsresult rv;
// We only have two child frames: the inner table and a caption frame.
// The inner frame is provided when we're initialized, and it cannot change
if (nsGkAtoms::captionList == aListName) {
NS_ASSERTION(aFrameList.IsEmpty() ||
aFrameList.FirstChild()->GetType() == nsGkAtoms::tableCaptionFrame,
"appending non-caption frame to captionList");
mCaptionFrames.AppendFrames(this, aFrameList);
mCaptionFrame = mCaptionFrames.FirstChild();
rv = NS_OK;
// Reflow the new caption frame. It's already marked dirty, so
// just tell the pres shell.
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
}
else {
NS_PRECONDITION(PR_FALSE, "unexpected child list");
rv = NS_ERROR_UNEXPECTED;
}
return rv;
}
NS_IMETHODIMP
nsTableOuterFrame::InsertFrames(nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsFrameList& aFrameList)
{
if (nsGkAtoms::captionList == aListName) {
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
"inserting after sibling frame with different parent");
NS_ASSERTION(aFrameList.IsEmpty() ||
aFrameList.FirstChild()->GetType() == nsGkAtoms::tableCaptionFrame,
"inserting non-caption frame into captionList");
mCaptionFrames.InsertFrames(nsnull, aPrevFrame, aFrameList);
mCaptionFrame = mCaptionFrames.FirstChild();
// Reflow the new caption frame. It's already marked dirty, so
// just tell the pres shell.
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
return NS_OK;
}
else {
NS_PRECONDITION(!aPrevFrame, "invalid previous frame");
return AppendFrames(aListName, aFrameList);
}
}
NS_IMETHODIMP
nsTableOuterFrame::RemoveFrame(nsIAtom* aListName,
nsIFrame* aOldFrame)
{
// We only have two child frames: the inner table and one caption frame.
// The inner frame can't be removed so this should be the caption
NS_PRECONDITION(nsGkAtoms::captionList == aListName, "can't remove inner frame");
if (HasSideCaption()) {
// The old caption width had an effect on the inner table width so
// we're going to need to reflow it. Mark it dirty
mInnerTableFrame->AddStateBits(NS_FRAME_IS_DIRTY);
}
// Remove the frame and destroy it
mCaptionFrames.DestroyFrame(aOldFrame);
mCaptionFrame = mCaptionFrames.FirstChild();
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN); // also means child removed
return NS_OK;
}
NS_METHOD
nsTableOuterFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
// No border, background or outline are painted because they all belong
// to the inner table.
if (!IsVisibleInSelection(aBuilder))
return NS_OK;
// If there's no caption, take a short cut to avoid having to create
// the special display list set and then sort it.
if (!mCaptionFrame)
return BuildDisplayListForInnerTable(aBuilder, aDirtyRect, aLists);
nsDisplayListCollection set;
nsresult rv = BuildDisplayListForInnerTable(aBuilder, aDirtyRect, set);
NS_ENSURE_SUCCESS(rv, rv);
nsDisplayListSet captionSet(set, set.BlockBorderBackgrounds());
rv = BuildDisplayListForChild(aBuilder, mCaptionFrame, aDirtyRect, captionSet);
NS_ENSURE_SUCCESS(rv, rv);
// Now we have to sort everything by content order, since the caption
// may be somewhere inside the table
set.SortAllByContentOrder(aBuilder, GetContent());
set.MoveTo(aLists);
return NS_OK;
}
nsresult
nsTableOuterFrame::BuildDisplayListForInnerTable(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
// Just paint the regular children, but the children's background is our
// true background (there should only be one, the real table)
nsIFrame* kid = mFrames.FirstChild();
// The children should be in content order
while (kid) {
nsresult rv = BuildDisplayListForChild(aBuilder, kid, aDirtyRect, aLists);
NS_ENSURE_SUCCESS(rv, rv);
kid = kid->GetNextSibling();
}
return NS_OK;
}
void
nsTableOuterFrame::SetSelected(PRBool aSelected,
SelectionType aType)
{
nsFrame::SetSelected(aSelected, aType);
if (mInnerTableFrame) {
mInnerTableFrame->SetSelected(aSelected, aType);
}
}
NS_IMETHODIMP
nsTableOuterFrame::GetParentStyleContextFrame(nsPresContext* aPresContext,
nsIFrame** aProviderFrame,
PRBool* aIsChild)
{
// The table outer frame and the (inner) table frame split the style
// data by giving the table frame the style context associated with
// the table content node and creating a style context for the outer
// frame that is a *child* of the table frame's style context,
// matching the ::-moz-table-outer pseudo-element. html.css has a
// rule that causes that pseudo-element (and thus the outer table)
// to inherit *some* style properties from the table frame. The
// children of the table inherit directly from the inner table, and
// the outer table's style context is a leaf.
if (!mInnerTableFrame) {
*aProviderFrame = this;
*aIsChild = PR_FALSE;
return NS_ERROR_FAILURE;
}
*aProviderFrame = mInnerTableFrame;
*aIsChild = PR_TRUE;
return NS_OK;
}
// INCREMENTAL REFLOW HELPER FUNCTIONS
void
nsTableOuterFrame::InitChildReflowState(nsPresContext& aPresContext,
nsHTMLReflowState& aReflowState)
{
nsMargin collapseBorder;
nsMargin collapsePadding(0,0,0,0);
nsMargin* pCollapseBorder = nsnull;
nsMargin* pCollapsePadding = nsnull;
if ((aReflowState.frame == mInnerTableFrame) && (mInnerTableFrame->IsBorderCollapse())) {
collapseBorder = mInnerTableFrame->GetIncludedOuterBCBorder();
pCollapseBorder = &collapseBorder;
pCollapsePadding = &collapsePadding;
}
aReflowState.Init(&aPresContext, -1, -1, pCollapseBorder, pCollapsePadding);
}
// get the margin and padding data. nsHTMLReflowState doesn't handle the
// case of auto margins
void
nsTableOuterFrame::GetChildMargin(nsPresContext* aPresContext,
const nsHTMLReflowState& aOuterRS,
nsIFrame* aChildFrame,
nscoord aAvailWidth,
nsMargin& aMargin)
{
// construct a reflow state to compute margin and padding. Auto margins
// will not be computed at this time.
// create and init the child reflow state
// XXX We really shouldn't construct a reflow state to do this.
nsHTMLReflowState childRS(aPresContext, aOuterRS, aChildFrame,
nsSize(aAvailWidth, aOuterRS.availableHeight),
-1, -1, PR_FALSE);
InitChildReflowState(*aPresContext, childRS);
aMargin = childRS.mComputedMargin;
}
static nsSize
GetContainingBlockSize(const nsHTMLReflowState& aOuterRS)
{
nsSize size(0,0);
const nsHTMLReflowState* containRS =
aOuterRS.mCBReflowState;
if (containRS) {
size.width = containRS->ComputedWidth();
if (NS_UNCONSTRAINEDSIZE == size.width) {
size.width = 0;
}
size.height = containRS->ComputedHeight();
if (NS_UNCONSTRAINEDSIZE == size.height) {
size.height = 0;
}
}
return size;
}
/* virtual */ nscoord
nsTableOuterFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
{
nscoord width = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
mInnerTableFrame, nsLayoutUtils::MIN_WIDTH);
DISPLAY_MIN_WIDTH(this, width);
if (mCaptionFrame) {
nscoord capWidth =
nsLayoutUtils::IntrinsicForContainer(aRenderingContext, mCaptionFrame,
nsLayoutUtils::MIN_WIDTH);
if (HasSideCaption()) {
width += capWidth;
} else {
if (capWidth > width) {
width = capWidth;
}
}
}
return width;
}
/* virtual */ nscoord
nsTableOuterFrame::GetPrefWidth(nsRenderingContext *aRenderingContext)
{
nscoord maxWidth;
DISPLAY_PREF_WIDTH(this, maxWidth);
maxWidth = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
mInnerTableFrame, nsLayoutUtils::PREF_WIDTH);
if (mCaptionFrame) {
PRUint8 captionSide = GetCaptionSide();
switch(captionSide) {
case NS_STYLE_CAPTION_SIDE_LEFT:
case NS_STYLE_CAPTION_SIDE_RIGHT:
{
nscoord capMin =
nsLayoutUtils::IntrinsicForContainer(aRenderingContext, mCaptionFrame,
nsLayoutUtils::MIN_WIDTH);
maxWidth += capMin;
}
break;
default:
{
nsLayoutUtils::IntrinsicWidthType iwt;
if (captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
// Don't let the caption's pref width expand the table's pref
// width.
iwt = nsLayoutUtils::MIN_WIDTH;
} else {
NS_ASSERTION(captionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE,
"unexpected caption side");
iwt = nsLayoutUtils::PREF_WIDTH;
}
nscoord capPref =
nsLayoutUtils::IntrinsicForContainer(aRenderingContext, mCaptionFrame,
iwt);
maxWidth = NS_MAX(maxWidth, capPref);
}
break;
}
}
return maxWidth;
}
// Compute the margin-box width of aChildFrame given the inputs. If
// aMarginResult is non-null, fill it with the part of the margin-width
// that was contributed by the margin.
static nscoord
ChildShrinkWrapWidth(nsRenderingContext *aRenderingContext,
nsIFrame *aChildFrame,
nsSize aCBSize, nscoord aAvailableWidth,
nscoord *aMarginResult = nsnull)
{
// The outer table's children do not use it as a containing block.
nsCSSOffsetState offsets(aChildFrame, aRenderingContext, aCBSize.width);
nsSize size = aChildFrame->ComputeSize(aRenderingContext, aCBSize,
aAvailableWidth,
nsSize(offsets.mComputedMargin.LeftRight(),
offsets.mComputedMargin.TopBottom()),
nsSize(offsets.mComputedBorderPadding.LeftRight() -
offsets.mComputedPadding.LeftRight(),
offsets.mComputedBorderPadding.TopBottom() -
offsets.mComputedPadding.TopBottom()),
nsSize(offsets.mComputedPadding.LeftRight(),
offsets.mComputedPadding.TopBottom()),
PR_TRUE);
if (aMarginResult)
*aMarginResult = offsets.mComputedMargin.LeftRight();
return size.width + offsets.mComputedMargin.LeftRight() +
offsets.mComputedBorderPadding.LeftRight();
}
/* virtual */ nsSize
nsTableOuterFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
nsSize aCBSize, nscoord aAvailableWidth,
nsSize aMargin, nsSize aBorder,
nsSize aPadding, PRBool aShrinkWrap)
{
if (!aShrinkWrap)
return nsHTMLContainerFrame::ComputeAutoSize(aRenderingContext, aCBSize,
aAvailableWidth, aMargin, aBorder, aPadding, aShrinkWrap);
// When we're shrink-wrapping, our auto size needs to wrap around the
// actual size of the table, which (if it is specified as a percent)
// could be something that is not reflected in our GetMinWidth and
// GetPrefWidth. See bug 349457 for an example.
// Match the availableWidth logic in Reflow.
PRUint8 captionSide = GetCaptionSide();
nscoord width;
if (captionSide == NO_SIDE) {
width = ChildShrinkWrapWidth(aRenderingContext, mInnerTableFrame,
aCBSize, aAvailableWidth);
} else if (captionSide == NS_STYLE_CAPTION_SIDE_LEFT ||
captionSide == NS_STYLE_CAPTION_SIDE_RIGHT) {
nscoord capWidth = ChildShrinkWrapWidth(aRenderingContext, mCaptionFrame,
aCBSize, aAvailableWidth);
width = capWidth + ChildShrinkWrapWidth(aRenderingContext,
mInnerTableFrame, aCBSize,
aAvailableWidth - capWidth);
} else if (captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
nscoord margin;
width = ChildShrinkWrapWidth(aRenderingContext, mInnerTableFrame,
aCBSize, aAvailableWidth, &margin);
nscoord capWidth = ChildShrinkWrapWidth(aRenderingContext,
mCaptionFrame, aCBSize,
width - margin);
if (capWidth > width)
width = capWidth;
} else {
NS_ASSERTION(captionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE,
"unexpected caption-side");
width = ChildShrinkWrapWidth(aRenderingContext, mInnerTableFrame,
aCBSize, aAvailableWidth);
nscoord capWidth = ChildShrinkWrapWidth(aRenderingContext,
mCaptionFrame, aCBSize,
aAvailableWidth);
if (capWidth > width)
width = capWidth;
}
return nsSize(width, NS_UNCONSTRAINEDSIZE);
}
PRUint8
nsTableOuterFrame::GetCaptionSide()
{
if (mCaptionFrame) {
return mCaptionFrame->GetStyleTableBorder()->mCaptionSide;
}
else {
return NO_SIDE; // no caption
}
}
PRUint8
nsTableOuterFrame::GetCaptionVerticalAlign()
{
const nsStyleCoord& va = mCaptionFrame->GetStyleTextReset()->mVerticalAlign;
return (va.GetUnit() == eStyleUnit_Enumerated)
? va.GetIntValue()
: NS_STYLE_VERTICAL_ALIGN_TOP;
}
void
nsTableOuterFrame::SetDesiredSize(PRUint8 aCaptionSide,
const nsMargin& aInnerMargin,
const nsMargin& aCaptionMargin,
nscoord& aWidth,
nscoord& aHeight)
{
aWidth = aHeight = 0;
nsRect innerRect = mInnerTableFrame->GetRect();
nscoord innerWidth = innerRect.width;
nsRect captionRect(0,0,0,0);
nscoord captionWidth = 0;
if (mCaptionFrame) {
captionRect = mCaptionFrame->GetRect();
captionWidth = captionRect.width;
}
switch(aCaptionSide) {
case NS_STYLE_CAPTION_SIDE_LEFT:
aWidth = NS_MAX(aInnerMargin.left, aCaptionMargin.left + captionWidth + aCaptionMargin.right) +
innerWidth + aInnerMargin.right;
break;
case NS_STYLE_CAPTION_SIDE_RIGHT:
aWidth = NS_MAX(aInnerMargin.right, aCaptionMargin.left + captionWidth + aCaptionMargin.right) +
innerWidth + aInnerMargin.left;
break;
default:
aWidth = aInnerMargin.left + innerWidth + aInnerMargin.right;
aWidth = NS_MAX(aWidth, captionRect.XMost() + aCaptionMargin.right);
}
aHeight = innerRect.YMost() + aInnerMargin.bottom;
if (NS_STYLE_CAPTION_SIDE_BOTTOM != aCaptionSide) {
aHeight = NS_MAX(aHeight, captionRect.YMost() + aCaptionMargin.bottom);
}
else {
aHeight = NS_MAX(aHeight, captionRect.YMost() + aCaptionMargin.bottom +
aInnerMargin.bottom);
}
}
nsresult
nsTableOuterFrame::GetCaptionOrigin(PRUint32 aCaptionSide,
const nsSize& aContainBlockSize,
const nsSize& aInnerSize,
const nsMargin& aInnerMargin,
const nsSize& aCaptionSize,
nsMargin& aCaptionMargin,
nsPoint& aOrigin)
{
aOrigin.x = aOrigin.y = 0;
if ((NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aInnerSize.height) ||
(NS_UNCONSTRAINEDSIZE == aCaptionSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.height)) {
return NS_OK;
}
if (!mCaptionFrame) return NS_OK;
NS_ASSERTION(NS_AUTOMARGIN != aCaptionMargin.left, "The computed caption margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aCaptionMargin.top, "The computed caption margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aCaptionMargin.bottom, "The computed caption margin is auto?");
// horizontal computation
switch(aCaptionSide) {
case NS_STYLE_CAPTION_SIDE_BOTTOM:
case NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE: {
// FIXME: Position relative to right edge for RTL. (Based on table
// direction or table parent direction?)
aOrigin.x = aCaptionMargin.left;
if (aCaptionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
// We placed the caption using only the table's width as available
// width, and we should position it this way as well.
aOrigin.x += aInnerMargin.left;
}
} break;
case NS_STYLE_CAPTION_SIDE_LEFT: {
aOrigin.x = aCaptionMargin.left;
} break;
case NS_STYLE_CAPTION_SIDE_RIGHT: {
aOrigin.x = aInnerMargin.left + aInnerSize.width + aCaptionMargin.left;
} break;
default: { // top
NS_ASSERTION(aCaptionSide == NS_STYLE_CAPTION_SIDE_TOP ||
aCaptionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE,
"unexpected caption side");
// FIXME: Position relative to right edge for RTL. (Based on table
// direction or table parent direction?)
aOrigin.x = aCaptionMargin.left;
if (aCaptionSide == NS_STYLE_CAPTION_SIDE_TOP) {
// We placed the caption using only the table's width as available
// width, and we should position it this way as well.
aOrigin.x += aInnerMargin.left;
}
} break;
}
// vertical computation
switch (aCaptionSide) {
case NS_STYLE_CAPTION_SIDE_RIGHT:
case NS_STYLE_CAPTION_SIDE_LEFT:
aOrigin.y = aInnerMargin.top;
switch (GetCaptionVerticalAlign()) {
case NS_STYLE_VERTICAL_ALIGN_MIDDLE:
aOrigin.y = NS_MAX(0, aInnerMargin.top + ((aInnerSize.height - aCaptionSize.height) / 2));
break;
case NS_STYLE_VERTICAL_ALIGN_BOTTOM:
aOrigin.y = NS_MAX(0, aInnerMargin.top + aInnerSize.height - aCaptionSize.height);
break;
default:
break;
}
break;
case NS_STYLE_CAPTION_SIDE_BOTTOM: {
aOrigin.y = aInnerMargin.top + aInnerSize.height + aCaptionMargin.top;
} break;
case NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE: {
nsCollapsingMargin marg;
marg.Include(aCaptionMargin.top);
marg.Include(aInnerMargin.bottom);
nscoord collapseMargin = marg.get();
aOrigin.y = aInnerMargin.top + aInnerSize.height + collapseMargin;
} break;
case NS_STYLE_CAPTION_SIDE_TOP: {
aOrigin.y = aInnerMargin.top + aCaptionMargin.top;
} break;
case NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE: {
aOrigin.y = aCaptionMargin.top;
} break;
default:
NS_NOTREACHED("Unknown caption alignment type");
break;
}
return NS_OK;
}
nsresult
nsTableOuterFrame::GetInnerOrigin(PRUint32 aCaptionSide,
const nsSize& aContainBlockSize,
const nsSize& aCaptionSize,
const nsMargin& aCaptionMargin,
const nsSize& aInnerSize,
nsMargin& aInnerMargin,
nsPoint& aOrigin)
{
NS_ASSERTION(NS_AUTOMARGIN != aCaptionMargin.left, "The computed caption margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aCaptionMargin.right, "The computed caption margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aInnerMargin.left, "The computed inner margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aInnerMargin.right, "The computed inner margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aInnerMargin.top, "The computed inner margin is auto?");
NS_ASSERTION(NS_AUTOMARGIN != aInnerMargin.bottom, "The computed inner margin is auto?");
aOrigin.x = aOrigin.y = 0;
if ((NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aInnerSize.height) ||
(NS_UNCONSTRAINEDSIZE == aCaptionSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.height)) {
return NS_OK;
}
nscoord minCapWidth = aCaptionSize.width;
minCapWidth += aCaptionMargin.left;
minCapWidth += aCaptionMargin.right;
// horizontal computation
switch (aCaptionSide) {
case NS_STYLE_CAPTION_SIDE_LEFT: {
if (aInnerMargin.left < minCapWidth) {
// shift the inner table to get some place for the caption
aInnerMargin.right += aInnerMargin.left - minCapWidth;
aInnerMargin.right = NS_MAX(0, aInnerMargin.right);
aInnerMargin.left = minCapWidth;
}
aOrigin.x = aInnerMargin.left;
} break;
default: {
NS_ASSERTION(aCaptionSide == NS_STYLE_CAPTION_SIDE_TOP ||
aCaptionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE ||
aCaptionSide == NS_STYLE_CAPTION_SIDE_BOTTOM ||
aCaptionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE ||
aCaptionSide == NS_STYLE_CAPTION_SIDE_RIGHT ||
aCaptionSide == NO_SIDE,
"unexpected caption side");
aOrigin.x = aInnerMargin.left;
} break;
}
// vertical computation
switch (aCaptionSide) {
case NS_STYLE_CAPTION_SIDE_BOTTOM:
case NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE: {
aOrigin.y = aInnerMargin.top;
} break;
case NS_STYLE_CAPTION_SIDE_LEFT:
case NS_STYLE_CAPTION_SIDE_RIGHT: {
aOrigin.y = aInnerMargin.top;
switch (GetCaptionVerticalAlign()) {
case NS_STYLE_VERTICAL_ALIGN_MIDDLE:
aOrigin.y = NS_MAX(aInnerMargin.top, (aCaptionSize.height - aInnerSize.height) / 2);
break;
case NS_STYLE_VERTICAL_ALIGN_BOTTOM:
aOrigin.y = NS_MAX(aInnerMargin.top, aCaptionSize.height - aInnerSize.height);
break;
default:
break;
}
} break;
case NO_SIDE:
case NS_STYLE_CAPTION_SIDE_TOP: {
aOrigin.y = aInnerMargin.top + aCaptionMargin.top + aCaptionSize.height +
aCaptionMargin.bottom;
} break;
case NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE: {
nsCollapsingMargin marg;
marg.Include(aCaptionMargin.bottom);
marg.Include(aInnerMargin.top);
nscoord collapseMargin = marg.get();
aOrigin.y = aCaptionMargin.top + aCaptionSize.height + collapseMargin;
} break;
default:
NS_NOTREACHED("Unknown caption alignment type");
break;
}
return NS_OK;
}
void
nsTableOuterFrame::OuterBeginReflowChild(nsPresContext* aPresContext,
nsIFrame* aChildFrame,
const nsHTMLReflowState& aOuterRS,
void* aChildRSSpace,
nscoord aAvailWidth)
{
// work around pixel rounding errors, round down to ensure we don't exceed the avail height in
nscoord availHeight = aOuterRS.availableHeight;
if (NS_UNCONSTRAINEDSIZE != availHeight) {
if (mCaptionFrame == aChildFrame) {
availHeight = NS_UNCONSTRAINEDSIZE;
} else {
nsMargin margin;
GetChildMargin(aPresContext, aOuterRS, aChildFrame,
aOuterRS.availableWidth, margin);
NS_ASSERTION(NS_UNCONSTRAINEDSIZE != margin.top, "No unconstrainedsize arithmetic, please");
availHeight -= margin.top;
NS_ASSERTION(NS_UNCONSTRAINEDSIZE != margin.bottom, "No unconstrainedsize arithmetic, please");
availHeight -= margin.bottom;
}
}
nsSize availSize(aAvailWidth, availHeight);
// create and init the child reflow state, using placement new on
// stack space allocated by the caller, so that the caller can destroy
// it
nsHTMLReflowState &childRS = * new (aChildRSSpace)
nsHTMLReflowState(aPresContext, aOuterRS, aChildFrame, availSize,
-1, -1, PR_FALSE);
InitChildReflowState(*aPresContext, childRS);
// see if we need to reset top of page due to a caption
if (mCaptionFrame) {
PRUint8 captionSide = GetCaptionSide();
if (((captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE) &&
mCaptionFrame == aChildFrame) ||
((captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE) &&
mInnerTableFrame == aChildFrame)) {
childRS.mFlags.mIsTopOfPage = PR_FALSE;
}
}
}
nsresult
nsTableOuterFrame::OuterDoReflowChild(nsPresContext* aPresContext,
nsIFrame* aChildFrame,
const nsHTMLReflowState& aChildRS,
nsHTMLReflowMetrics& aMetrics,
nsReflowStatus& aStatus)
{
// use the current position as a best guess for placement
nsPoint childPt = aChildFrame->GetPosition();
return ReflowChild(aChildFrame, aPresContext, aMetrics, aChildRS,
childPt.x, childPt.y, NS_FRAME_NO_MOVE_FRAME, aStatus);
}
void
nsTableOuterFrame::UpdateReflowMetrics(PRUint8 aCaptionSide,
nsHTMLReflowMetrics& aMet,
const nsMargin& aInnerMargin,
const nsMargin& aCaptionMargin)
{
SetDesiredSize(aCaptionSide, aInnerMargin, aCaptionMargin,
aMet.width, aMet.height);
aMet.SetOverflowAreasToDesiredBounds();
ConsiderChildOverflow(aMet.mOverflowAreas, mInnerTableFrame);
if (mCaptionFrame) {
ConsiderChildOverflow(aMet.mOverflowAreas, mCaptionFrame);
}
FinishAndStoreOverflow(&aMet);
}
NS_METHOD nsTableOuterFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aOuterRS,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsTableOuterFrame");
DISPLAY_REFLOW(aPresContext, this, aOuterRS, aDesiredSize, aStatus);
// We desperately need an inner table frame,
// if this fails fix the frame constructor
if (mFrames.IsEmpty() || !mInnerTableFrame) {
NS_ERROR("incomplete children");
return NS_ERROR_FAILURE;
}
nsresult rv = NS_OK;
PRUint8 captionSide = GetCaptionSide();
// Initialize out parameters
aDesiredSize.width = aDesiredSize.height = 0;
aStatus = NS_FRAME_COMPLETE;
if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
// Set up our kids. They're already present, on an overflow list,
// or there are none so we'll create them now
MoveOverflowToChildList(aPresContext);
}
// Use longs to get more-aligned space.
#define LONGS_IN_HTMLRS \
((sizeof(nsHTMLReflowState) + sizeof(long) - 1) / sizeof(long))
long captionRSSpace[LONGS_IN_HTMLRS];
nsHTMLReflowState *captionRS =
static_cast<nsHTMLReflowState*>((void*)captionRSSpace);
long innerRSSpace[LONGS_IN_HTMLRS];
nsHTMLReflowState *innerRS =
static_cast<nsHTMLReflowState*>((void*) innerRSSpace);
nsRect origInnerRect = mInnerTableFrame->GetRect();
nsRect origInnerVisualOverflow = mInnerTableFrame->GetVisualOverflowRect();
PRBool innerFirstReflow =
(mInnerTableFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0;
nsRect origCaptionRect;
nsRect origCaptionVisualOverflow;
PRBool captionFirstReflow;
if (mCaptionFrame) {
origCaptionRect = mCaptionFrame->GetRect();
origCaptionVisualOverflow = mCaptionFrame->GetVisualOverflowRect();
captionFirstReflow =
(mCaptionFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0;
}
// ComputeAutoSize has to match this logic.
if (captionSide == NO_SIDE) {
// We don't have a caption.
OuterBeginReflowChild(aPresContext, mInnerTableFrame, aOuterRS,
innerRSSpace, aOuterRS.ComputedWidth());
} else if (captionSide == NS_STYLE_CAPTION_SIDE_LEFT ||
captionSide == NS_STYLE_CAPTION_SIDE_RIGHT) {
// nsTableCaptionFrame::ComputeAutoSize takes care of making side
// captions small. Compute the caption's size first, and tell the
// table to fit in what's left.
OuterBeginReflowChild(aPresContext, mCaptionFrame, aOuterRS,
captionRSSpace, aOuterRS.ComputedWidth());
nscoord innerAvailWidth = aOuterRS.ComputedWidth() -
(captionRS->ComputedWidth() + captionRS->mComputedMargin.LeftRight() +
captionRS->mComputedBorderPadding.LeftRight());
OuterBeginReflowChild(aPresContext, mInnerTableFrame, aOuterRS,
innerRSSpace, innerAvailWidth);
} else if (captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
// Compute the table's size first, and then prevent the caption from
// being wider unless it has to be.
//
// Note that CSS 2.1 (but not 2.0) says:
// The width of the anonymous box is the border-edge width of the
// table box inside it
// We don't actually make our anonymous box that width (if we did,
// it would break 'auto' margins), but this effectively does that.
OuterBeginReflowChild(aPresContext, mInnerTableFrame, aOuterRS,
innerRSSpace, aOuterRS.ComputedWidth());
// It's good that CSS 2.1 says not to include margins, since we
// can't, since they already been converted so they exactly
// fill the available width (ignoring the margin on one side if
// neither are auto). (We take advantage of that later when we call
// GetCaptionOrigin, though.)
nscoord innerBorderWidth = innerRS->ComputedWidth() +
innerRS->mComputedBorderPadding.LeftRight();
OuterBeginReflowChild(aPresContext, mCaptionFrame, aOuterRS,
captionRSSpace, innerBorderWidth);
} else {
NS_ASSERTION(captionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE,
"unexpected caption-side");
// Size the table and the caption independently.
OuterBeginReflowChild(aPresContext, mCaptionFrame, aOuterRS,
captionRSSpace, aOuterRS.ComputedWidth());
OuterBeginReflowChild(aPresContext, mInnerTableFrame, aOuterRS,
innerRSSpace, aOuterRS.ComputedWidth());
}
// First reflow the caption.
nsHTMLReflowMetrics captionMet;
nsSize captionSize;
nsMargin captionMargin;
if (mCaptionFrame) {
nsReflowStatus capStatus; // don't let the caption cause incomplete
rv = OuterDoReflowChild(aPresContext, mCaptionFrame, *captionRS,
captionMet, capStatus);
if (NS_FAILED(rv)) return rv;
captionSize.width = captionMet.width;
captionSize.height = captionMet.height;
captionMargin = captionRS->mComputedMargin;
} else {
captionSize.SizeTo(0,0);
captionMargin.SizeTo(0,0,0,0);
}
// Then, now that we know how much to reduce the width of the inner
// table to account for side captions, reflow the inner table.
nsHTMLReflowMetrics innerMet;
rv = OuterDoReflowChild(aPresContext, mInnerTableFrame, *innerRS,
innerMet, aStatus);
if (NS_FAILED(rv)) return rv;
nsSize innerSize;
innerSize.width = innerMet.width;
innerSize.height = innerMet.height;
nsMargin innerMargin = innerRS->mComputedMargin;
nsSize containSize = GetContainingBlockSize(aOuterRS);
// Now that we've reflowed both we can place them.
// XXXldb Most of the input variables here are now uninitialized!
// XXX Need to recompute inner table's auto margins for the case of side
// captions. (Caption's are broken too, but that should be fixed earlier.)
if (mCaptionFrame) {
nsPoint captionOrigin;
GetCaptionOrigin(captionSide, containSize, innerSize,
innerMargin, captionSize, captionMargin, captionOrigin);
FinishReflowChild(mCaptionFrame, aPresContext, captionRS, captionMet,
captionOrigin.x, captionOrigin.y, 0);
captionRS->~nsHTMLReflowState();
}
// XXX If the height is constrained then we need to check whether
// everything still fits...
nsPoint innerOrigin;
GetInnerOrigin(captionSide, containSize, captionSize,
captionMargin, innerSize, innerMargin, innerOrigin);
FinishReflowChild(mInnerTableFrame, aPresContext, innerRS, innerMet,
innerOrigin.x, innerOrigin.y, 0);
innerRS->~nsHTMLReflowState();
nsTableFrame::InvalidateFrame(mInnerTableFrame, origInnerRect,
origInnerVisualOverflow, innerFirstReflow);
if (mCaptionFrame) {
nsTableFrame::InvalidateFrame(mCaptionFrame, origCaptionRect,
origCaptionVisualOverflow,
captionFirstReflow);
}
UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, captionMargin);
// Return our desired rect
NS_FRAME_SET_TRUNCATION(aStatus, aOuterRS, aDesiredSize);
return rv;
}
nsIAtom*
nsTableOuterFrame::GetType() const
{
return nsGkAtoms::tableOuterFrame;
}
/* ----- global methods ----- */
/*------------------ nsITableLayout methods ------------------------------*/
NS_IMETHODIMP
nsTableOuterFrame::GetCellDataAt(PRInt32 aRowIndex, PRInt32 aColIndex,
nsIDOMElement* &aCell, //out params
PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
PRInt32& aRowSpan, PRInt32& aColSpan,
PRInt32& aActualRowSpan, PRInt32& aActualColSpan,
PRBool& aIsSelected)
{
NS_ASSERTION(mInnerTableFrame, "no inner table frame yet?");
return mInnerTableFrame->GetCellDataAt(aRowIndex, aColIndex, aCell,
aStartRowIndex, aStartColIndex,
aRowSpan, aColSpan, aActualRowSpan,
aActualColSpan, aIsSelected);
}
NS_IMETHODIMP
nsTableOuterFrame::GetTableSize(PRInt32& aRowCount, PRInt32& aColCount)
{
NS_ASSERTION(mInnerTableFrame, "no inner table frame yet?");
return mInnerTableFrame->GetTableSize(aRowCount, aColCount);
}
NS_IMETHODIMP
nsTableOuterFrame::GetIndexByRowAndColumn(PRInt32 aRow, PRInt32 aColumn,
PRInt32 *aIndex)
{
NS_ENSURE_ARG_POINTER(aIndex);
NS_ASSERTION(mInnerTableFrame, "no inner table frame yet?");
return mInnerTableFrame->GetIndexByRowAndColumn(aRow, aColumn, aIndex);
}
NS_IMETHODIMP
nsTableOuterFrame::GetRowAndColumnByIndex(PRInt32 aIndex,
PRInt32 *aRow, PRInt32 *aColumn)
{
NS_ENSURE_ARG_POINTER(aRow);
NS_ENSURE_ARG_POINTER(aColumn);
NS_ASSERTION(mInnerTableFrame, "no inner table frame yet?");
return mInnerTableFrame->GetRowAndColumnByIndex(aIndex, aRow, aColumn);
}
/*---------------- end of nsITableLayout implementation ------------------*/
nsIFrame*
NS_NewTableOuterFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsTableOuterFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsTableOuterFrame)
#ifdef DEBUG
NS_IMETHODIMP
nsTableOuterFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("TableOuter"), aResult);
}
#endif
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