mirror of
https://github.com/mozilla/gecko-dev.git
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811c3783d4
Backed out changeset 0b5918ec6521 (bug 1031444) Backed out changeset 663ff18cd4a1 (bug 1028460) Backed out changeset ae01b3919c8c (bug 1028460) Backed out changeset 316c8dfeca9b (bug 1028460) Backed out changeset e237b2c61ea2 (bug 1028460)
1927 lines
74 KiB
C++
1927 lines
74 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsCOMPtr.h"
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#include "nsTableRowGroupFrame.h"
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#include "nsTableRowFrame.h"
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#include "nsTableFrame.h"
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#include "nsTableCellFrame.h"
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#include "nsPresContext.h"
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#include "nsStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIContent.h"
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#include "nsGkAtoms.h"
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#include "nsIPresShell.h"
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#include "nsCSSRendering.h"
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#include "nsHTMLParts.h"
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#include "nsCSSFrameConstructor.h"
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#include "nsDisplayList.h"
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#include "nsCellMap.h"//table cell navigation
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#include <algorithm>
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using namespace mozilla;
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using namespace mozilla::layout;
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nsTableRowGroupFrame::nsTableRowGroupFrame(nsStyleContext* aContext):
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nsContainerFrame(aContext)
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{
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SetRepeatable(false);
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}
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nsTableRowGroupFrame::~nsTableRowGroupFrame()
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{
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}
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void
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nsTableRowGroupFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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if (GetStateBits() & NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN) {
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nsTableFrame::UnregisterPositionedTablePart(this, aDestructRoot);
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}
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nsContainerFrame::DestroyFrom(aDestructRoot);
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}
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NS_QUERYFRAME_HEAD(nsTableRowGroupFrame)
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NS_QUERYFRAME_ENTRY(nsTableRowGroupFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
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int32_t
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nsTableRowGroupFrame::GetRowCount()
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{
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#ifdef DEBUG
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for (nsFrameList::Enumerator e(mFrames); !e.AtEnd(); e.Next()) {
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NS_ASSERTION(e.get()->StyleDisplay()->mDisplay ==
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NS_STYLE_DISPLAY_TABLE_ROW,
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"Unexpected display");
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NS_ASSERTION(e.get()->GetType() == nsGkAtoms::tableRowFrame,
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"Unexpected frame type");
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}
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#endif
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return mFrames.GetLength();
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}
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int32_t nsTableRowGroupFrame::GetStartRowIndex()
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{
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int32_t result = -1;
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if (mFrames.NotEmpty()) {
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NS_ASSERTION(mFrames.FirstChild()->GetType() == nsGkAtoms::tableRowFrame,
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"Unexpected frame type");
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result = static_cast<nsTableRowFrame*>(mFrames.FirstChild())->GetRowIndex();
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}
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// if the row group doesn't have any children, get it the hard way
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if (-1 == result) {
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nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
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return tableFrame->GetStartRowIndex(this);
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}
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return result;
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}
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void nsTableRowGroupFrame::AdjustRowIndices(int32_t aRowIndex,
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int32_t anAdjustment)
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{
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nsIFrame* rowFrame = GetFirstPrincipalChild();
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for ( ; rowFrame; rowFrame = rowFrame->GetNextSibling()) {
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if (NS_STYLE_DISPLAY_TABLE_ROW==rowFrame->StyleDisplay()->mDisplay) {
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int32_t index = ((nsTableRowFrame*)rowFrame)->GetRowIndex();
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if (index >= aRowIndex)
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((nsTableRowFrame *)rowFrame)->SetRowIndex(index+anAdjustment);
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}
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}
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}
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nsresult
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nsTableRowGroupFrame::InitRepeatedFrame(nsPresContext* aPresContext,
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nsTableRowGroupFrame* aHeaderFooterFrame)
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{
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nsTableRowFrame* copyRowFrame = GetFirstRow();
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nsTableRowFrame* originalRowFrame = aHeaderFooterFrame->GetFirstRow();
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AddStateBits(NS_REPEATED_ROW_OR_ROWGROUP);
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while (copyRowFrame && originalRowFrame) {
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copyRowFrame->AddStateBits(NS_REPEATED_ROW_OR_ROWGROUP);
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int rowIndex = originalRowFrame->GetRowIndex();
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copyRowFrame->SetRowIndex(rowIndex);
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// For each table cell frame set its column index
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nsTableCellFrame* originalCellFrame = originalRowFrame->GetFirstCell();
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nsTableCellFrame* copyCellFrame = copyRowFrame->GetFirstCell();
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while (copyCellFrame && originalCellFrame) {
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NS_ASSERTION(originalCellFrame->GetContent() == copyCellFrame->GetContent(),
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"cell frames have different content");
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int32_t colIndex;
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originalCellFrame->GetColIndex(colIndex);
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copyCellFrame->SetColIndex(colIndex);
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// Move to the next cell frame
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copyCellFrame = copyCellFrame->GetNextCell();
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originalCellFrame = originalCellFrame->GetNextCell();
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}
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// Move to the next row frame
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originalRowFrame = originalRowFrame->GetNextRow();
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copyRowFrame = copyRowFrame->GetNextRow();
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}
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return NS_OK;
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}
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/**
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* We need a custom display item for table row backgrounds. This is only used
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* when the table row is the root of a stacking context (e.g., has 'opacity').
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* Table row backgrounds can extend beyond the row frame bounds, when
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* the row contains row-spanning cells.
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*/
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class nsDisplayTableRowGroupBackground : public nsDisplayTableItem {
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public:
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nsDisplayTableRowGroupBackground(nsDisplayListBuilder* aBuilder,
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nsTableRowGroupFrame* aFrame) :
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nsDisplayTableItem(aBuilder, aFrame) {
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MOZ_COUNT_CTOR(nsDisplayTableRowGroupBackground);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayTableRowGroupBackground() {
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MOZ_COUNT_DTOR(nsDisplayTableRowGroupBackground);
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}
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#endif
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virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
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const nsDisplayItemGeometry* aGeometry,
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nsRegion *aInvalidRegion) MOZ_OVERRIDE;
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virtual void Paint(nsDisplayListBuilder* aBuilder,
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nsRenderingContext* aCtx) MOZ_OVERRIDE;
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NS_DISPLAY_DECL_NAME("TableRowGroupBackground", TYPE_TABLE_ROW_GROUP_BACKGROUND)
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};
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void
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nsDisplayTableRowGroupBackground::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
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const nsDisplayItemGeometry* aGeometry,
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nsRegion *aInvalidRegion)
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{
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if (aBuilder->ShouldSyncDecodeImages()) {
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if (nsTableFrame::AnyTablePartHasUndecodedBackgroundImage(mFrame, mFrame->GetNextSibling())) {
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bool snap;
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aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
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}
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}
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nsDisplayTableItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
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}
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void
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nsDisplayTableRowGroupBackground::Paint(nsDisplayListBuilder* aBuilder,
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nsRenderingContext* aCtx)
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{
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nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(mFrame);
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TableBackgroundPainter painter(tableFrame,
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TableBackgroundPainter::eOrigin_TableRowGroup,
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mFrame->PresContext(), *aCtx,
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mVisibleRect, ToReferenceFrame(),
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aBuilder->GetBackgroundPaintFlags());
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painter.PaintRowGroup(static_cast<nsTableRowGroupFrame*>(mFrame));
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}
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// Handle the child-traversal part of DisplayGenericTablePart
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static void
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DisplayRows(nsDisplayListBuilder* aBuilder, nsFrame* aFrame,
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const nsRect& aDirtyRect, const nsDisplayListSet& aLists)
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{
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nscoord overflowAbove;
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nsTableRowGroupFrame* f = static_cast<nsTableRowGroupFrame*>(aFrame);
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// Don't try to use the row cursor if we have to descend into placeholders;
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// we might have rows containing placeholders, where the row's overflow
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// area doesn't intersect the dirty rect but we need to descend into the row
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// to see out of flows.
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// Note that we really want to check ShouldDescendIntoFrame for all
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// the rows in |f|, but that's exactly what we're trying to avoid, so we
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// approximate it by checking it for |f|: if it's true for any row
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// in |f| then it's true for |f| itself.
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nsIFrame* kid = aBuilder->ShouldDescendIntoFrame(f) ?
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nullptr : f->GetFirstRowContaining(aDirtyRect.y, &overflowAbove);
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if (kid) {
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// have a cursor, use it
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while (kid) {
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if (kid->GetRect().y - overflowAbove >= aDirtyRect.YMost())
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break;
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f->BuildDisplayListForChild(aBuilder, kid, aDirtyRect, aLists);
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kid = kid->GetNextSibling();
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}
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return;
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}
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// No cursor. Traverse children the hard way and build a cursor while we're at it
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nsTableRowGroupFrame::FrameCursorData* cursor = f->SetupRowCursor();
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kid = f->GetFirstPrincipalChild();
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while (kid) {
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f->BuildDisplayListForChild(aBuilder, kid, aDirtyRect, aLists);
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if (cursor) {
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if (!cursor->AppendFrame(kid)) {
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f->ClearRowCursor();
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return;
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}
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}
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kid = kid->GetNextSibling();
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}
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if (cursor) {
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cursor->FinishBuildingCursor();
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}
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}
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void
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nsTableRowGroupFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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nsDisplayTableItem* item = nullptr;
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if (IsVisibleInSelection(aBuilder)) {
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bool isRoot = aBuilder->IsAtRootOfPseudoStackingContext();
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if (isRoot) {
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// This background is created regardless of whether this frame is
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// visible or not. Visibility decisions are delegated to the
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// table background painter.
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item = new (aBuilder) nsDisplayTableRowGroupBackground(aBuilder, this);
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aLists.BorderBackground()->AppendNewToTop(item);
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}
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}
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nsTableFrame::DisplayGenericTablePart(aBuilder, this, aDirtyRect,
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aLists, item, DisplayRows);
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}
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int
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nsTableRowGroupFrame::GetLogicalSkipSides(const nsHTMLReflowState* aReflowState) const
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{
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if (MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak ==
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NS_STYLE_BOX_DECORATION_BREAK_CLONE)) {
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return 0;
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}
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int skip = 0;
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if (nullptr != GetPrevInFlow()) {
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skip |= LOGICAL_SIDE_B_START;
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}
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if (nullptr != GetNextInFlow()) {
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skip |= LOGICAL_SIDE_B_END;
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}
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return skip;
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}
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// Position and size aKidFrame and update our reflow state. The origin of
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// aKidRect is relative to the upper-left origin of our frame
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void
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nsTableRowGroupFrame::PlaceChild(nsPresContext* aPresContext,
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nsRowGroupReflowState& aReflowState,
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nsIFrame* aKidFrame,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsRect& aOriginalKidRect,
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const nsRect& aOriginalKidVisualOverflow)
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{
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bool isFirstReflow =
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(aKidFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0;
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// Place and size the child
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FinishReflowChild(aKidFrame, aPresContext, aDesiredSize, nullptr, 0,
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aReflowState.y, 0);
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nsTableFrame::InvalidateTableFrame(aKidFrame, aOriginalKidRect,
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aOriginalKidVisualOverflow, isFirstReflow);
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// Adjust the running y-offset
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aReflowState.y += aDesiredSize.Height();
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// If our height is constrained then update the available height
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if (NS_UNCONSTRAINEDSIZE != aReflowState.availSize.height) {
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aReflowState.availSize.height -= aDesiredSize.Height();
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}
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}
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void
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nsTableRowGroupFrame::InitChildReflowState(nsPresContext& aPresContext,
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bool aBorderCollapse,
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nsHTMLReflowState& aReflowState)
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{
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nsMargin collapseBorder;
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nsMargin padding(0,0,0,0);
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nsMargin* pCollapseBorder = nullptr;
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if (aBorderCollapse) {
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nsTableRowFrame *rowFrame = do_QueryFrame(aReflowState.frame);
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if (rowFrame) {
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pCollapseBorder = rowFrame->GetBCBorderWidth(collapseBorder);
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}
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}
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aReflowState.Init(&aPresContext, -1, -1, pCollapseBorder, &padding);
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}
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static void
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CacheRowHeightsForPrinting(nsPresContext* aPresContext,
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nsTableRowFrame* aFirstRow)
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{
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for (nsTableRowFrame* row = aFirstRow; row; row = row->GetNextRow()) {
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if (!row->GetPrevInFlow()) {
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row->SetHasUnpaginatedHeight(true);
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row->SetUnpaginatedHeight(aPresContext, row->GetSize().height);
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}
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}
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}
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void
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nsTableRowGroupFrame::ReflowChildren(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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nsRowGroupReflowState& aReflowState,
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nsReflowStatus& aStatus,
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bool* aPageBreakBeforeEnd)
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{
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if (aPageBreakBeforeEnd)
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*aPageBreakBeforeEnd = false;
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nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
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const bool borderCollapse = tableFrame->IsBorderCollapse();
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// XXXldb Should we really be checking this rather than available height?
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// (Think about multi-column layout!)
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bool isPaginated = aPresContext->IsPaginated() &&
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NS_UNCONSTRAINEDSIZE != aReflowState.availSize.height;
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bool haveRow = false;
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bool reflowAllKids = aReflowState.reflowState.ShouldReflowAllKids() ||
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tableFrame->IsGeometryDirty();
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bool needToCalcRowHeights = reflowAllKids;
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nsIFrame *prevKidFrame = nullptr;
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for (nsIFrame* kidFrame = mFrames.FirstChild(); kidFrame;
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prevKidFrame = kidFrame, kidFrame = kidFrame->GetNextSibling()) {
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nsTableRowFrame *rowFrame = do_QueryFrame(kidFrame);
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if (!rowFrame) {
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// XXXldb nsCSSFrameConstructor needs to enforce this!
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NS_NOTREACHED("yikes, a non-row child");
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continue;
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}
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nscoord cellSpacingY = tableFrame->GetCellSpacingY(rowFrame->GetRowIndex());
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haveRow = true;
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// Reflow the row frame
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if (reflowAllKids ||
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NS_SUBTREE_DIRTY(kidFrame) ||
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(aReflowState.reflowState.mFlags.mSpecialHeightReflow &&
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(isPaginated || (kidFrame->GetStateBits() &
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NS_FRAME_CONTAINS_RELATIVE_HEIGHT)))) {
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nsRect oldKidRect = kidFrame->GetRect();
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nsRect oldKidVisualOverflow = kidFrame->GetVisualOverflowRect();
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// XXXldb We used to only pass aDesiredSize.mFlags through for the
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// incremental reflow codepath.
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nsHTMLReflowMetrics desiredSize(aReflowState.reflowState,
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aDesiredSize.mFlags);
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desiredSize.Width() = desiredSize.Height() = 0;
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// Reflow the child into the available space, giving it as much height as
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// it wants. We'll deal with splitting later after we've computed the row
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// heights, taking into account cells with row spans...
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nsSize kidAvailSize(aReflowState.availSize.width, NS_UNCONSTRAINEDSIZE);
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nsHTMLReflowState kidReflowState(aPresContext, aReflowState.reflowState,
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kidFrame, kidAvailSize,
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-1, -1,
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nsHTMLReflowState::CALLER_WILL_INIT);
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InitChildReflowState(*aPresContext, borderCollapse, kidReflowState);
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// This can indicate that columns were resized.
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if (aReflowState.reflowState.mFlags.mHResize)
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kidReflowState.mFlags.mHResize = true;
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NS_ASSERTION(kidFrame == mFrames.FirstChild() || prevKidFrame,
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"If we're not on the first frame, we should have a "
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"previous sibling...");
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// If prev row has nonzero YMost, then we can't be at the top of the page
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if (prevKidFrame && prevKidFrame->GetRect().YMost() > 0) {
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kidReflowState.mFlags.mIsTopOfPage = false;
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}
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ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState,
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0, aReflowState.y, 0, aStatus);
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// Place the child
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PlaceChild(aPresContext, aReflowState, kidFrame, desiredSize,
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oldKidRect, oldKidVisualOverflow);
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aReflowState.y += cellSpacingY;
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if (!reflowAllKids) {
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if (IsSimpleRowFrame(aReflowState.tableFrame, kidFrame)) {
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// Inform the row of its new height.
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rowFrame->DidResize();
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// the overflow area may have changed inflate the overflow area
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const nsStylePosition *stylePos = StylePosition();
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nsStyleUnit unit = stylePos->mHeight.GetUnit();
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if (aReflowState.tableFrame->IsAutoHeight() &&
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unit != eStyleUnit_Coord) {
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// Because other cells in the row may need to be aligned
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// differently, repaint the entire row
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nsRect kidRect(0, aReflowState.y,
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desiredSize.Width(), desiredSize.Height());
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InvalidateFrame();
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}
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else if (oldKidRect.height != desiredSize.Height())
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needToCalcRowHeights = true;
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} else {
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needToCalcRowHeights = true;
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}
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}
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if (isPaginated && aPageBreakBeforeEnd && !*aPageBreakBeforeEnd) {
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nsTableRowFrame* nextRow = rowFrame->GetNextRow();
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if (nextRow) {
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*aPageBreakBeforeEnd = nsTableFrame::PageBreakAfter(kidFrame, nextRow);
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}
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}
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} else {
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SlideChild(aReflowState, kidFrame);
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// Adjust the running y-offset so we know where the next row should be placed
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nscoord height = kidFrame->GetSize().height + cellSpacingY;
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aReflowState.y += height;
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if (NS_UNCONSTRAINEDSIZE != aReflowState.availSize.height) {
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aReflowState.availSize.height -= height;
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}
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}
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ConsiderChildOverflow(aDesiredSize.mOverflowAreas, kidFrame);
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}
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if (haveRow)
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aReflowState.y -= tableFrame->GetCellSpacingY(GetStartRowIndex() +
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GetRowCount());
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// Return our desired rect
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aDesiredSize.Width() = aReflowState.reflowState.AvailableWidth();
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aDesiredSize.Height() = aReflowState.y;
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if (aReflowState.reflowState.mFlags.mSpecialHeightReflow) {
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DidResizeRows(aDesiredSize);
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if (isPaginated) {
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CacheRowHeightsForPrinting(aPresContext, GetFirstRow());
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}
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}
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else if (needToCalcRowHeights) {
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CalculateRowHeights(aPresContext, aDesiredSize, aReflowState.reflowState);
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if (!reflowAllKids) {
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InvalidateFrame();
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}
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|
}
|
|
}
|
|
|
|
nsTableRowFrame*
|
|
nsTableRowGroupFrame::GetFirstRow()
|
|
{
|
|
for (nsIFrame* childFrame = mFrames.FirstChild(); childFrame;
|
|
childFrame = childFrame->GetNextSibling()) {
|
|
nsTableRowFrame *rowFrame = do_QueryFrame(childFrame);
|
|
if (rowFrame) {
|
|
return rowFrame;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
struct RowInfo {
|
|
RowInfo() { height = pctHeight = hasStyleHeight = hasPctHeight = isSpecial = 0; }
|
|
unsigned height; // content height or fixed height, excluding pct height
|
|
unsigned pctHeight:29; // pct height
|
|
unsigned hasStyleHeight:1;
|
|
unsigned hasPctHeight:1;
|
|
unsigned isSpecial:1; // there is no cell originating in the row with rowspan=1 and there are at
|
|
// least 2 cells spanning the row and there is no style height on the row
|
|
};
|
|
|
|
static void
|
|
UpdateHeights(RowInfo& aRowInfo,
|
|
nscoord aAdditionalHeight,
|
|
nscoord& aTotal,
|
|
nscoord& aUnconstrainedTotal)
|
|
{
|
|
aRowInfo.height += aAdditionalHeight;
|
|
aTotal += aAdditionalHeight;
|
|
if (!aRowInfo.hasStyleHeight) {
|
|
aUnconstrainedTotal += aAdditionalHeight;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::DidResizeRows(nsHTMLReflowMetrics& aDesiredSize)
|
|
{
|
|
// update the cells spanning rows with their new heights
|
|
// this is the place where all of the cells in the row get set to the height of the row
|
|
// Reset the overflow area
|
|
aDesiredSize.mOverflowAreas.Clear();
|
|
for (nsTableRowFrame* rowFrame = GetFirstRow();
|
|
rowFrame; rowFrame = rowFrame->GetNextRow()) {
|
|
rowFrame->DidResize();
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, rowFrame);
|
|
}
|
|
}
|
|
|
|
// This calculates the height of all the rows and takes into account
|
|
// style height on the row group, style heights on rows and cells, style heights on rowspans.
|
|
// Actual row heights will be adjusted later if the table has a style height.
|
|
// Even if rows don't change height, this method must be called to set the heights of each
|
|
// cell in the row to the height of its row.
|
|
void
|
|
nsTableRowGroupFrame::CalculateRowHeights(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState)
|
|
{
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
const bool isPaginated = aPresContext->IsPaginated();
|
|
|
|
int32_t numEffCols = tableFrame->GetEffectiveColCount();
|
|
|
|
int32_t startRowIndex = GetStartRowIndex();
|
|
// find the row corresponding to the row index we just found
|
|
nsTableRowFrame* startRowFrame = GetFirstRow();
|
|
|
|
if (!startRowFrame) return;
|
|
|
|
// the current row group height is the y origin of the 1st row we are about to calculated a height for
|
|
nscoord startRowGroupHeight = startRowFrame->GetPosition().y;
|
|
|
|
int32_t numRows = GetRowCount() - (startRowFrame->GetRowIndex() - GetStartRowIndex());
|
|
// collect the current height of each row. nscoord* rowHeights = nullptr;
|
|
if (numRows <= 0)
|
|
return;
|
|
|
|
nsTArray<RowInfo> rowInfo;
|
|
if (!rowInfo.AppendElements(numRows)) {
|
|
return;
|
|
}
|
|
|
|
bool hasRowSpanningCell = false;
|
|
nscoord heightOfRows = 0;
|
|
nscoord heightOfUnStyledRows = 0;
|
|
// Get the height of each row without considering rowspans. This will be the max of
|
|
// the largest desired height of each cell, the largest style height of each cell,
|
|
// the style height of the row.
|
|
nscoord pctHeightBasis = GetHeightBasis(aReflowState);
|
|
int32_t rowIndex; // the index in rowInfo, not among the rows in the row group
|
|
nsTableRowFrame* rowFrame;
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame; rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
nscoord nonPctHeight = rowFrame->GetContentHeight();
|
|
if (isPaginated) {
|
|
nonPctHeight = std::max(nonPctHeight, rowFrame->GetSize().height);
|
|
}
|
|
if (!rowFrame->GetPrevInFlow()) {
|
|
if (rowFrame->HasPctHeight()) {
|
|
rowInfo[rowIndex].hasPctHeight = true;
|
|
rowInfo[rowIndex].pctHeight = rowFrame->GetHeight(pctHeightBasis);
|
|
}
|
|
rowInfo[rowIndex].hasStyleHeight = rowFrame->HasStyleHeight();
|
|
nonPctHeight = std::max(nonPctHeight, rowFrame->GetFixedHeight());
|
|
}
|
|
UpdateHeights(rowInfo[rowIndex], nonPctHeight, heightOfRows, heightOfUnStyledRows);
|
|
|
|
if (!rowInfo[rowIndex].hasStyleHeight) {
|
|
if (isPaginated || tableFrame->HasMoreThanOneCell(rowIndex + startRowIndex)) {
|
|
rowInfo[rowIndex].isSpecial = true;
|
|
// iteratate the row's cell frames to see if any do not have rowspan > 1
|
|
nsTableCellFrame* cellFrame = rowFrame->GetFirstCell();
|
|
while (cellFrame) {
|
|
int32_t rowSpan = tableFrame->GetEffectiveRowSpan(rowIndex + startRowIndex, *cellFrame);
|
|
if (1 == rowSpan) {
|
|
rowInfo[rowIndex].isSpecial = false;
|
|
break;
|
|
}
|
|
cellFrame = cellFrame->GetNextCell();
|
|
}
|
|
}
|
|
}
|
|
// See if a cell spans into the row. If so we'll have to do the next step
|
|
if (!hasRowSpanningCell) {
|
|
if (tableFrame->RowIsSpannedInto(rowIndex + startRowIndex, numEffCols)) {
|
|
hasRowSpanningCell = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hasRowSpanningCell) {
|
|
// Get the height of cells with rowspans and allocate any extra space to the rows they span
|
|
// iteratate the child frames and process the row frames among them
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame; rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
// See if the row has an originating cell with rowspan > 1. We cannot determine this for a row in a
|
|
// continued row group by calling RowHasSpanningCells, because the row's fif may not have any originating
|
|
// cells yet the row may have a continued cell which originates in it.
|
|
if (GetPrevInFlow() || tableFrame->RowHasSpanningCells(startRowIndex + rowIndex, numEffCols)) {
|
|
nsTableCellFrame* cellFrame = rowFrame->GetFirstCell();
|
|
// iteratate the row's cell frames
|
|
while (cellFrame) {
|
|
nscoord cellSpacingY = tableFrame->GetCellSpacingY(startRowIndex + rowIndex);
|
|
int32_t rowSpan = tableFrame->GetEffectiveRowSpan(rowIndex + startRowIndex, *cellFrame);
|
|
if ((rowIndex + rowSpan) > numRows) {
|
|
// there might be rows pushed already to the nextInFlow
|
|
rowSpan = numRows - rowIndex;
|
|
}
|
|
if (rowSpan > 1) { // a cell with rowspan > 1, determine the height of the rows it spans
|
|
nscoord heightOfRowsSpanned = 0;
|
|
nscoord heightOfUnStyledRowsSpanned = 0;
|
|
nscoord numSpecialRowsSpanned = 0;
|
|
nscoord cellSpacingTotal = 0;
|
|
int32_t spanX;
|
|
for (spanX = 0; spanX < rowSpan; spanX++) {
|
|
heightOfRowsSpanned += rowInfo[rowIndex + spanX].height;
|
|
if (!rowInfo[rowIndex + spanX].hasStyleHeight) {
|
|
heightOfUnStyledRowsSpanned += rowInfo[rowIndex + spanX].height;
|
|
}
|
|
if (0 != spanX) {
|
|
cellSpacingTotal += cellSpacingY;
|
|
}
|
|
if (rowInfo[rowIndex + spanX].isSpecial) {
|
|
numSpecialRowsSpanned++;
|
|
}
|
|
}
|
|
nscoord heightOfAreaSpanned = heightOfRowsSpanned + cellSpacingTotal;
|
|
// get the height of the cell
|
|
nsSize cellFrameSize = cellFrame->GetSize();
|
|
nsSize cellDesSize = cellFrame->GetDesiredSize();
|
|
rowFrame->CalculateCellActualHeight(cellFrame, cellDesSize.height);
|
|
cellFrameSize.height = cellDesSize.height;
|
|
if (cellFrame->HasVerticalAlignBaseline()) {
|
|
// to ensure that a spanning cell with a long descender doesn't
|
|
// collide with the next row, we need to take into account the shift
|
|
// that will be done to align the cell on the baseline of the row.
|
|
cellFrameSize.height += rowFrame->GetMaxCellAscent() -
|
|
cellFrame->GetCellBaseline();
|
|
}
|
|
|
|
if (heightOfAreaSpanned < cellFrameSize.height) {
|
|
// the cell's height is larger than the available space of the rows it
|
|
// spans so distribute the excess height to the rows affected
|
|
nscoord extra = cellFrameSize.height - heightOfAreaSpanned;
|
|
nscoord extraUsed = 0;
|
|
if (0 == numSpecialRowsSpanned) {
|
|
//NS_ASSERTION(heightOfRowsSpanned > 0, "invalid row span situation");
|
|
bool haveUnStyledRowsSpanned = (heightOfUnStyledRowsSpanned > 0);
|
|
nscoord divisor = (haveUnStyledRowsSpanned)
|
|
? heightOfUnStyledRowsSpanned : heightOfRowsSpanned;
|
|
if (divisor > 0) {
|
|
for (spanX = rowSpan - 1; spanX >= 0; spanX--) {
|
|
if (!haveUnStyledRowsSpanned || !rowInfo[rowIndex + spanX].hasStyleHeight) {
|
|
// The amount of additional space each row gets is proportional to its height
|
|
float percent = ((float)rowInfo[rowIndex + spanX].height) / ((float)divisor);
|
|
|
|
// give rows their percentage, except for the first row which gets the remainder
|
|
nscoord extraForRow = (0 == spanX) ? extra - extraUsed
|
|
: NSToCoordRound(((float)(extra)) * percent);
|
|
extraForRow = std::min(extraForRow, extra - extraUsed);
|
|
// update the row height
|
|
UpdateHeights(rowInfo[rowIndex + spanX], extraForRow, heightOfRows, heightOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extra) {
|
|
NS_ASSERTION((extraUsed == extra), "invalid row height calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// put everything in the last row
|
|
UpdateHeights(rowInfo[rowIndex + rowSpan - 1], extra, heightOfRows, heightOfUnStyledRows);
|
|
}
|
|
}
|
|
else {
|
|
// give the extra to the special rows
|
|
nscoord numSpecialRowsAllocated = 0;
|
|
for (spanX = rowSpan - 1; spanX >= 0; spanX--) {
|
|
if (rowInfo[rowIndex + spanX].isSpecial) {
|
|
// The amount of additional space each degenerate row gets is proportional to the number of them
|
|
float percent = 1.0f / ((float)numSpecialRowsSpanned);
|
|
|
|
// give rows their percentage, except for the first row which gets the remainder
|
|
nscoord extraForRow = (numSpecialRowsSpanned - 1 == numSpecialRowsAllocated)
|
|
? extra - extraUsed
|
|
: NSToCoordRound(((float)(extra)) * percent);
|
|
extraForRow = std::min(extraForRow, extra - extraUsed);
|
|
// update the row height
|
|
UpdateHeights(rowInfo[rowIndex + spanX], extraForRow, heightOfRows, heightOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extra) {
|
|
NS_ASSERTION((extraUsed == extra), "invalid row height calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} // if (rowSpan > 1)
|
|
cellFrame = cellFrame->GetNextCell();
|
|
} // while (cellFrame)
|
|
} // if (tableFrame->RowHasSpanningCells(startRowIndex + rowIndex) {
|
|
} // while (rowFrame)
|
|
}
|
|
|
|
// pct height rows have already got their content heights. Give them their pct heights up to pctHeightBasis
|
|
nscoord extra = pctHeightBasis - heightOfRows;
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame && (extra > 0); rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
RowInfo& rInfo = rowInfo[rowIndex];
|
|
if (rInfo.hasPctHeight) {
|
|
nscoord rowExtra = (rInfo.pctHeight > rInfo.height)
|
|
? rInfo.pctHeight - rInfo.height: 0;
|
|
rowExtra = std::min(rowExtra, extra);
|
|
UpdateHeights(rInfo, rowExtra, heightOfRows, heightOfUnStyledRows);
|
|
extra -= rowExtra;
|
|
}
|
|
}
|
|
|
|
bool styleHeightAllocation = false;
|
|
nscoord rowGroupHeight = startRowGroupHeight + heightOfRows +
|
|
tableFrame->GetCellSpacingY(0, numRows-1);
|
|
// if we have a style height, allocate the extra height to unconstrained rows
|
|
if ((aReflowState.ComputedHeight() > rowGroupHeight) &&
|
|
(NS_UNCONSTRAINEDSIZE != aReflowState.ComputedHeight())) {
|
|
nscoord extraComputedHeight = aReflowState.ComputedHeight() - rowGroupHeight;
|
|
nscoord extraUsed = 0;
|
|
bool haveUnStyledRows = (heightOfUnStyledRows > 0);
|
|
nscoord divisor = (haveUnStyledRows)
|
|
? heightOfUnStyledRows : heightOfRows;
|
|
if (divisor > 0) {
|
|
styleHeightAllocation = true;
|
|
for (rowIndex = 0; rowIndex < numRows; rowIndex++) {
|
|
if (!haveUnStyledRows || !rowInfo[rowIndex].hasStyleHeight) {
|
|
// The amount of additional space each row gets is based on the
|
|
// percentage of space it occupies
|
|
float percent = ((float)rowInfo[rowIndex].height) / ((float)divisor);
|
|
// give rows their percentage, except for the last row which gets the remainder
|
|
nscoord extraForRow = (numRows - 1 == rowIndex)
|
|
? extraComputedHeight - extraUsed
|
|
: NSToCoordRound(((float)extraComputedHeight) * percent);
|
|
extraForRow = std::min(extraForRow, extraComputedHeight - extraUsed);
|
|
// update the row height
|
|
UpdateHeights(rowInfo[rowIndex], extraForRow, heightOfRows, heightOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extraComputedHeight) {
|
|
NS_ASSERTION((extraUsed == extraComputedHeight), "invalid row height calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rowGroupHeight = aReflowState.ComputedHeight();
|
|
}
|
|
|
|
nscoord yOrigin = startRowGroupHeight;
|
|
// update the rows with their (potentially) new heights
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame; rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
nsRect rowBounds = rowFrame->GetRect();
|
|
nsRect rowVisualOverflow = rowFrame->GetVisualOverflowRect();
|
|
|
|
bool movedFrame = (rowBounds.y != yOrigin);
|
|
nscoord rowHeight = (rowInfo[rowIndex].height > 0) ? rowInfo[rowIndex].height : 0;
|
|
|
|
if (movedFrame || (rowHeight != rowBounds.height)) {
|
|
// Resize/move the row to its final size and position
|
|
if (movedFrame) {
|
|
rowFrame->InvalidateFrameSubtree();
|
|
}
|
|
|
|
rowFrame->SetRect(nsRect(rowBounds.x, yOrigin, rowBounds.width,
|
|
rowHeight));
|
|
|
|
nsTableFrame::InvalidateTableFrame(rowFrame, rowBounds, rowVisualOverflow,
|
|
false);
|
|
}
|
|
if (movedFrame) {
|
|
nsTableFrame::RePositionViews(rowFrame);
|
|
// XXXbz we don't need to update our overflow area?
|
|
}
|
|
yOrigin += rowHeight + tableFrame->GetCellSpacingY(startRowIndex + rowIndex);
|
|
}
|
|
|
|
if (isPaginated && styleHeightAllocation) {
|
|
// since the row group has a style height, cache the row heights, so next in flows can honor them
|
|
CacheRowHeightsForPrinting(aPresContext, GetFirstRow());
|
|
}
|
|
|
|
DidResizeRows(aDesiredSize);
|
|
|
|
aDesiredSize.Height() = rowGroupHeight; // Adjust our desired size
|
|
}
|
|
|
|
nscoord
|
|
nsTableRowGroupFrame::CollapseRowGroupIfNecessary(nscoord aYTotalOffset,
|
|
nscoord aWidth)
|
|
{
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
const nsStyleVisibility* groupVis = StyleVisibility();
|
|
bool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible);
|
|
if (collapseGroup) {
|
|
tableFrame->SetNeedToCollapse(true);
|
|
}
|
|
|
|
nsOverflowAreas overflow;
|
|
|
|
nsTableRowFrame* rowFrame= GetFirstRow();
|
|
bool didCollapse = false;
|
|
nscoord yGroupOffset = 0;
|
|
while (rowFrame) {
|
|
yGroupOffset += rowFrame->CollapseRowIfNecessary(yGroupOffset,
|
|
aWidth, collapseGroup,
|
|
didCollapse);
|
|
ConsiderChildOverflow(overflow, rowFrame);
|
|
rowFrame = rowFrame->GetNextRow();
|
|
}
|
|
|
|
nsRect groupRect = GetRect();
|
|
nsRect oldGroupRect = groupRect;
|
|
nsRect oldGroupVisualOverflow = GetVisualOverflowRect();
|
|
|
|
groupRect.height -= yGroupOffset;
|
|
if (didCollapse) {
|
|
// add back the cellspacing between rowgroups
|
|
groupRect.height += tableFrame->GetCellSpacingY(GetStartRowIndex() +
|
|
GetRowCount());
|
|
}
|
|
|
|
groupRect.y -= aYTotalOffset;
|
|
groupRect.width = aWidth;
|
|
|
|
if (aYTotalOffset != 0) {
|
|
InvalidateFrameSubtree();
|
|
}
|
|
|
|
SetRect(groupRect);
|
|
overflow.UnionAllWith(nsRect(0, 0, groupRect.width, groupRect.height));
|
|
FinishAndStoreOverflow(overflow, groupRect.Size());
|
|
nsTableFrame::RePositionViews(this);
|
|
nsTableFrame::InvalidateTableFrame(this, oldGroupRect, oldGroupVisualOverflow,
|
|
false);
|
|
|
|
return yGroupOffset;
|
|
}
|
|
|
|
// Move a child that was skipped during a reflow.
|
|
void
|
|
nsTableRowGroupFrame::SlideChild(nsRowGroupReflowState& aReflowState,
|
|
nsIFrame* aKidFrame)
|
|
{
|
|
// Move the frame if we need to
|
|
nsPoint oldPosition = aKidFrame->GetPosition();
|
|
nsPoint newPosition = oldPosition;
|
|
newPosition.y = aReflowState.y;
|
|
if (oldPosition.y != newPosition.y) {
|
|
aKidFrame->InvalidateFrameSubtree();
|
|
aKidFrame->SetPosition(newPosition);
|
|
nsTableFrame::RePositionViews(aKidFrame);
|
|
aKidFrame->InvalidateFrameSubtree();
|
|
}
|
|
}
|
|
|
|
// Create a continuing frame, add it to the child list, and then push it
|
|
// and the frames that follow
|
|
void
|
|
nsTableRowGroupFrame::CreateContinuingRowFrame(nsPresContext& aPresContext,
|
|
nsIFrame& aRowFrame,
|
|
nsIFrame** aContRowFrame)
|
|
{
|
|
// XXX what is the row index?
|
|
if (!aContRowFrame) {NS_ASSERTION(false, "bad call"); return;}
|
|
// create the continuing frame which will create continuing cell frames
|
|
*aContRowFrame = aPresContext.PresShell()->FrameConstructor()->
|
|
CreateContinuingFrame(&aPresContext, &aRowFrame, this);
|
|
|
|
// Add the continuing row frame to the child list
|
|
mFrames.InsertFrame(nullptr, &aRowFrame, *aContRowFrame);
|
|
|
|
// Push the continuing row frame and the frames that follow
|
|
PushChildren(*aContRowFrame, &aRowFrame);
|
|
}
|
|
|
|
// Reflow the cells with rowspan > 1 which originate between aFirstRow
|
|
// and end on or after aLastRow. aFirstTruncatedRow is the highest row on the
|
|
// page that contains a cell which cannot split on this page
|
|
void
|
|
nsTableRowGroupFrame::SplitSpanningCells(nsPresContext& aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsTableFrame& aTable,
|
|
nsTableRowFrame& aFirstRow,
|
|
nsTableRowFrame& aLastRow,
|
|
bool aFirstRowIsTopOfPage,
|
|
nscoord aSpanningRowBottom,
|
|
nsTableRowFrame*& aContRow,
|
|
nsTableRowFrame*& aFirstTruncatedRow,
|
|
nscoord& aDesiredHeight)
|
|
{
|
|
NS_ASSERTION(aSpanningRowBottom >= 0, "Can't split negative heights");
|
|
aFirstTruncatedRow = nullptr;
|
|
aDesiredHeight = 0;
|
|
|
|
const bool borderCollapse = aTable.IsBorderCollapse();
|
|
int32_t lastRowIndex = aLastRow.GetRowIndex();
|
|
bool wasLast = false;
|
|
bool haveRowSpan = false;
|
|
// Iterate the rows between aFirstRow and aLastRow
|
|
for (nsTableRowFrame* row = &aFirstRow; !wasLast; row = row->GetNextRow()) {
|
|
wasLast = (row == &aLastRow);
|
|
int32_t rowIndex = row->GetRowIndex();
|
|
nsPoint rowPos = row->GetPosition();
|
|
// Iterate the cells looking for those that have rowspan > 1
|
|
for (nsTableCellFrame* cell = row->GetFirstCell(); cell; cell = cell->GetNextCell()) {
|
|
int32_t rowSpan = aTable.GetEffectiveRowSpan(rowIndex, *cell);
|
|
// Only reflow rowspan > 1 cells which span aLastRow. Those which don't span aLastRow
|
|
// were reflowed correctly during the unconstrained height reflow.
|
|
if ((rowSpan > 1) && (rowIndex + rowSpan > lastRowIndex)) {
|
|
haveRowSpan = true;
|
|
nsReflowStatus status;
|
|
// Ask the row to reflow the cell to the height of all the rows it spans up through aLastRow
|
|
// aAvailHeight is the space between the row group start and the end of the page
|
|
nscoord cellAvailHeight = aSpanningRowBottom - rowPos.y;
|
|
NS_ASSERTION(cellAvailHeight >= 0, "No space for cell?");
|
|
bool isTopOfPage = (row == &aFirstRow) && aFirstRowIsTopOfPage;
|
|
|
|
nsRect rowRect = row->GetRect();
|
|
nsSize rowAvailSize(aReflowState.AvailableWidth(),
|
|
std::max(aReflowState.AvailableHeight() - rowRect.y,
|
|
0));
|
|
// don't let the available height exceed what
|
|
// CalculateRowHeights set for it
|
|
rowAvailSize.height = std::min(rowAvailSize.height, rowRect.height);
|
|
nsHTMLReflowState rowReflowState(&aPresContext, aReflowState,
|
|
row, rowAvailSize,
|
|
-1, -1,
|
|
nsHTMLReflowState::CALLER_WILL_INIT);
|
|
InitChildReflowState(aPresContext, borderCollapse, rowReflowState);
|
|
rowReflowState.mFlags.mIsTopOfPage = isTopOfPage; // set top of page
|
|
|
|
nscoord cellHeight = row->ReflowCellFrame(&aPresContext, rowReflowState,
|
|
isTopOfPage, cell,
|
|
cellAvailHeight, status);
|
|
aDesiredHeight = std::max(aDesiredHeight, rowPos.y + cellHeight);
|
|
if (NS_FRAME_IS_COMPLETE(status)) {
|
|
if (cellHeight > cellAvailHeight) {
|
|
aFirstTruncatedRow = row;
|
|
if ((row != &aFirstRow) || !aFirstRowIsTopOfPage) {
|
|
// return now, since we will be getting another reflow after either (1) row is
|
|
// moved to the next page or (2) the row group is moved to the next page
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (!aContRow) {
|
|
CreateContinuingRowFrame(aPresContext, aLastRow, (nsIFrame**)&aContRow);
|
|
}
|
|
if (aContRow) {
|
|
if (row != &aLastRow) {
|
|
// aContRow needs a continuation for cell, since cell spanned into aLastRow
|
|
// but does not originate there
|
|
nsTableCellFrame* contCell = static_cast<nsTableCellFrame*>(
|
|
aPresContext.PresShell()->FrameConstructor()->
|
|
CreateContinuingFrame(&aPresContext, cell, &aLastRow));
|
|
int32_t colIndex;
|
|
cell->GetColIndex(colIndex);
|
|
aContRow->InsertCellFrame(contCell, colIndex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!haveRowSpan) {
|
|
aDesiredHeight = aLastRow.GetRect().YMost();
|
|
}
|
|
}
|
|
|
|
// Remove the next-in-flow of the row, its cells and their cell blocks. This
|
|
// is necessary in case the row doesn't need a continuation later on or needs
|
|
// a continuation which doesn't have the same number of cells that now exist.
|
|
void
|
|
nsTableRowGroupFrame::UndoContinuedRow(nsPresContext* aPresContext,
|
|
nsTableRowFrame* aRow)
|
|
{
|
|
if (!aRow) return; // allow null aRow to avoid callers doing null checks
|
|
|
|
// rowBefore was the prev-sibling of aRow's next-sibling before aRow was created
|
|
nsTableRowFrame* rowBefore = (nsTableRowFrame*)aRow->GetPrevInFlow();
|
|
NS_PRECONDITION(mFrames.ContainsFrame(rowBefore),
|
|
"rowBefore not in our frame list?");
|
|
|
|
AutoFrameListPtr overflows(aPresContext, StealOverflowFrames());
|
|
if (!rowBefore || !overflows || overflows->IsEmpty() ||
|
|
overflows->FirstChild() != aRow) {
|
|
NS_ERROR("invalid continued row");
|
|
return;
|
|
}
|
|
|
|
// Destroy aRow, its cells, and their cell blocks. Cell blocks that have split
|
|
// will not have reflowed yet to pick up content from any overflow lines.
|
|
overflows->DestroyFrame(aRow);
|
|
|
|
// Put the overflow rows into our child list
|
|
if (!overflows->IsEmpty()) {
|
|
mFrames.InsertFrames(nullptr, rowBefore, *overflows);
|
|
}
|
|
}
|
|
|
|
static nsTableRowFrame*
|
|
GetRowBefore(nsTableRowFrame& aStartRow,
|
|
nsTableRowFrame& aRow)
|
|
{
|
|
nsTableRowFrame* rowBefore = nullptr;
|
|
for (nsTableRowFrame* sib = &aStartRow; sib && (sib != &aRow); sib = sib->GetNextRow()) {
|
|
rowBefore = sib;
|
|
}
|
|
return rowBefore;
|
|
}
|
|
|
|
nsresult
|
|
nsTableRowGroupFrame::SplitRowGroup(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsTableFrame* aTableFrame,
|
|
nsReflowStatus& aStatus,
|
|
bool aRowForcedPageBreak)
|
|
{
|
|
NS_PRECONDITION(aPresContext->IsPaginated(), "SplitRowGroup currently supports only paged media");
|
|
|
|
nsTableRowFrame* prevRowFrame = nullptr;
|
|
aDesiredSize.Height() = 0;
|
|
|
|
nscoord availWidth = aReflowState.AvailableWidth();
|
|
nscoord availHeight = aReflowState.AvailableHeight();
|
|
|
|
const bool borderCollapse = aTableFrame->IsBorderCollapse();
|
|
|
|
// get the page height
|
|
nscoord pageHeight = aPresContext->GetPageSize().height;
|
|
NS_ASSERTION(pageHeight != NS_UNCONSTRAINEDSIZE,
|
|
"The table shouldn't be split when there should be space");
|
|
|
|
bool isTopOfPage = aReflowState.mFlags.mIsTopOfPage;
|
|
nsTableRowFrame* firstRowThisPage = GetFirstRow();
|
|
|
|
// Need to dirty the table's geometry, or else the row might skip
|
|
// reflowing its cell as an optimization.
|
|
aTableFrame->SetGeometryDirty();
|
|
|
|
// Walk each of the row frames looking for the first row frame that doesn't fit
|
|
// in the available space
|
|
for (nsTableRowFrame* rowFrame = firstRowThisPage; rowFrame; rowFrame = rowFrame->GetNextRow()) {
|
|
bool rowIsOnPage = true;
|
|
nscoord cellSpacingY = aTableFrame->GetCellSpacingY(rowFrame->GetRowIndex());
|
|
nsRect rowRect = rowFrame->GetRect();
|
|
// See if the row fits on this page
|
|
if (rowRect.YMost() > availHeight) {
|
|
nsTableRowFrame* contRow = nullptr;
|
|
// Reflow the row in the availabe space and have it split if it is the 1st
|
|
// row (on the page) or there is at least 5% of the current page available
|
|
// XXX this 5% should be made a preference
|
|
if (!prevRowFrame || (availHeight - aDesiredSize.Height() > pageHeight / 20)) {
|
|
nsSize availSize(availWidth, std::max(availHeight - rowRect.y, 0));
|
|
// don't let the available height exceed what CalculateRowHeights set for it
|
|
availSize.height = std::min(availSize.height, rowRect.height);
|
|
|
|
nsHTMLReflowState rowReflowState(aPresContext, aReflowState,
|
|
rowFrame, availSize,
|
|
-1, -1,
|
|
nsHTMLReflowState::CALLER_WILL_INIT);
|
|
|
|
InitChildReflowState(*aPresContext, borderCollapse, rowReflowState);
|
|
rowReflowState.mFlags.mIsTopOfPage = isTopOfPage; // set top of page
|
|
nsHTMLReflowMetrics rowMetrics(aReflowState);
|
|
|
|
// Get the old size before we reflow.
|
|
nsRect oldRowRect = rowFrame->GetRect();
|
|
nsRect oldRowVisualOverflow = rowFrame->GetVisualOverflowRect();
|
|
|
|
// Reflow the cell with the constrained height. A cell with rowspan >1 will get this
|
|
// reflow later during SplitSpanningCells.
|
|
ReflowChild(rowFrame, aPresContext, rowMetrics, rowReflowState,
|
|
0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);
|
|
rowFrame->SetSize(nsSize(rowMetrics.Width(), rowMetrics.Height()));
|
|
rowFrame->DidReflow(aPresContext, nullptr, nsDidReflowStatus::FINISHED);
|
|
rowFrame->DidResize();
|
|
|
|
if (!aRowForcedPageBreak && !NS_FRAME_IS_FULLY_COMPLETE(aStatus) &&
|
|
ShouldAvoidBreakInside(aReflowState)) {
|
|
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
|
|
break;
|
|
}
|
|
|
|
nsTableFrame::InvalidateTableFrame(rowFrame, oldRowRect,
|
|
oldRowVisualOverflow,
|
|
false);
|
|
|
|
if (NS_FRAME_IS_NOT_COMPLETE(aStatus)) {
|
|
// The row frame is incomplete and all of the rowspan 1 cells' block frames split
|
|
if ((rowMetrics.Height() <= rowReflowState.AvailableHeight()) || isTopOfPage) {
|
|
// The row stays on this page because either it split ok or we're on the top of page.
|
|
// If top of page and the height exceeded the avail height, then there will be data loss
|
|
NS_ASSERTION(rowMetrics.Height() <= rowReflowState.AvailableHeight(),
|
|
"data loss - incomplete row needed more height than available, on top of page");
|
|
CreateContinuingRowFrame(*aPresContext, *rowFrame, (nsIFrame**)&contRow);
|
|
if (contRow) {
|
|
aDesiredSize.Height() += rowMetrics.Height();
|
|
if (prevRowFrame)
|
|
aDesiredSize.Height() += cellSpacingY;
|
|
}
|
|
else return NS_ERROR_NULL_POINTER;
|
|
}
|
|
else {
|
|
// Put the row on the next page to give it more height
|
|
rowIsOnPage = false;
|
|
}
|
|
}
|
|
else {
|
|
// The row frame is complete because either (1) its minimum height is greater than the
|
|
// available height we gave it, or (2) it may have been given a larger height through
|
|
// style than its content, or (3) it contains a rowspan >1 cell which hasn't been
|
|
// reflowed with a constrained height yet (we will find out when SplitSpanningCells is
|
|
// called below)
|
|
if (rowMetrics.Height() > availSize.height ||
|
|
(NS_INLINE_IS_BREAK_BEFORE(aStatus) && !aRowForcedPageBreak)) {
|
|
// cases (1) and (2)
|
|
if (isTopOfPage) {
|
|
// We're on top of the page, so keep the row on this page. There will be data loss.
|
|
// Push the row frame that follows
|
|
nsTableRowFrame* nextRowFrame = rowFrame->GetNextRow();
|
|
if (nextRowFrame) {
|
|
aStatus = NS_FRAME_NOT_COMPLETE;
|
|
}
|
|
aDesiredSize.Height() += rowMetrics.Height();
|
|
if (prevRowFrame)
|
|
aDesiredSize.Height() += cellSpacingY;
|
|
NS_WARNING("data loss - complete row needed more height than available, on top of page");
|
|
}
|
|
else {
|
|
// We're not on top of the page, so put the row on the next page to give it more height
|
|
rowIsOnPage = false;
|
|
}
|
|
}
|
|
}
|
|
} //if (!prevRowFrame || (availHeight - aDesiredSize.Height() > pageHeight / 20))
|
|
else {
|
|
// put the row on the next page to give it more height
|
|
rowIsOnPage = false;
|
|
}
|
|
|
|
nsTableRowFrame* lastRowThisPage = rowFrame;
|
|
nscoord spanningRowBottom = availHeight;
|
|
if (!rowIsOnPage) {
|
|
NS_ASSERTION(!contRow, "We should not have created a continuation if none of this row fits");
|
|
if (!aRowForcedPageBreak && ShouldAvoidBreakInside(aReflowState)) {
|
|
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
|
|
break;
|
|
}
|
|
if (prevRowFrame) {
|
|
spanningRowBottom = prevRowFrame->GetRect().YMost();
|
|
lastRowThisPage = prevRowFrame;
|
|
isTopOfPage = (lastRowThisPage == firstRowThisPage) && aReflowState.mFlags.mIsTopOfPage;
|
|
aStatus = NS_FRAME_NOT_COMPLETE;
|
|
}
|
|
else {
|
|
// We can't push children, so let our parent reflow us again with more space
|
|
aDesiredSize.Height() = rowRect.YMost();
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
break;
|
|
}
|
|
}
|
|
// reflow the cells with rowspan >1 that occur on the page
|
|
|
|
nsTableRowFrame* firstTruncatedRow;
|
|
nscoord yMost;
|
|
SplitSpanningCells(*aPresContext, aReflowState, *aTableFrame, *firstRowThisPage,
|
|
*lastRowThisPage, aReflowState.mFlags.mIsTopOfPage, spanningRowBottom, contRow,
|
|
firstTruncatedRow, yMost);
|
|
if (firstTruncatedRow) {
|
|
// A rowspan >1 cell did not fit (and could not split) in the space we gave it
|
|
if (firstTruncatedRow == firstRowThisPage) {
|
|
if (aReflowState.mFlags.mIsTopOfPage) {
|
|
NS_WARNING("data loss in a row spanned cell");
|
|
}
|
|
else {
|
|
// We can't push children, so let our parent reflow us again with more space
|
|
aDesiredSize.Height() = rowRect.YMost();
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
}
|
|
}
|
|
else { // (firstTruncatedRow != firstRowThisPage)
|
|
// Try to put firstTruncateRow on the next page
|
|
nsTableRowFrame* rowBefore = ::GetRowBefore(*firstRowThisPage, *firstTruncatedRow);
|
|
nscoord oldSpanningRowBottom = spanningRowBottom;
|
|
spanningRowBottom = rowBefore->GetRect().YMost();
|
|
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
nsTableRowFrame* oldLastRowThisPage = lastRowThisPage;
|
|
lastRowThisPage = rowBefore;
|
|
aStatus = NS_FRAME_NOT_COMPLETE;
|
|
|
|
// Call SplitSpanningCells again with rowBefore as the last row on the page
|
|
SplitSpanningCells(*aPresContext, aReflowState, *aTableFrame,
|
|
*firstRowThisPage, *rowBefore, aReflowState.mFlags.mIsTopOfPage,
|
|
spanningRowBottom, contRow, firstTruncatedRow, aDesiredSize.Height());
|
|
if (firstTruncatedRow) {
|
|
if (aReflowState.mFlags.mIsTopOfPage) {
|
|
// We were better off with the 1st call to SplitSpanningCells, do it again
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
lastRowThisPage = oldLastRowThisPage;
|
|
spanningRowBottom = oldSpanningRowBottom;
|
|
SplitSpanningCells(*aPresContext, aReflowState, *aTableFrame, *firstRowThisPage,
|
|
*lastRowThisPage, aReflowState.mFlags.mIsTopOfPage, spanningRowBottom, contRow,
|
|
firstTruncatedRow, aDesiredSize.Height());
|
|
NS_WARNING("data loss in a row spanned cell");
|
|
}
|
|
else {
|
|
// Let our parent reflow us again with more space
|
|
aDesiredSize.Height() = rowRect.YMost();
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
}
|
|
}
|
|
} // if (firstTruncatedRow == firstRowThisPage)
|
|
} // if (firstTruncatedRow)
|
|
else {
|
|
aDesiredSize.Height() = std::max(aDesiredSize.Height(), yMost);
|
|
if (contRow) {
|
|
aStatus = NS_FRAME_NOT_COMPLETE;
|
|
}
|
|
}
|
|
if (NS_FRAME_IS_NOT_COMPLETE(aStatus) && !contRow) {
|
|
nsTableRowFrame* nextRow = lastRowThisPage->GetNextRow();
|
|
if (nextRow) {
|
|
PushChildren(nextRow, lastRowThisPage);
|
|
}
|
|
}
|
|
break;
|
|
} // if (rowRect.YMost() > availHeight)
|
|
else {
|
|
aDesiredSize.Height() = rowRect.YMost();
|
|
prevRowFrame = rowFrame;
|
|
// see if there is a page break after the row
|
|
nsTableRowFrame* nextRow = rowFrame->GetNextRow();
|
|
if (nextRow && nsTableFrame::PageBreakAfter(rowFrame, nextRow)) {
|
|
PushChildren(nextRow, rowFrame);
|
|
aStatus = NS_FRAME_NOT_COMPLETE;
|
|
break;
|
|
}
|
|
}
|
|
// after the 1st row that has a height, we can't be on top
|
|
// of the page anymore.
|
|
isTopOfPage = isTopOfPage && rowRect.YMost() == 0;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/** Layout the entire row group.
|
|
* This method stacks rows vertically according to HTML 4.0 rules.
|
|
* Rows are responsible for layout of their children.
|
|
*/
|
|
void
|
|
nsTableRowGroupFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsTableRowGroupFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
|
|
// Row geometry may be going to change so we need to invalidate any row cursor.
|
|
ClearRowCursor();
|
|
|
|
// see if a special height reflow needs to occur due to having a pct height
|
|
nsTableFrame::CheckRequestSpecialHeightReflow(aReflowState);
|
|
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
nsRowGroupReflowState state(aReflowState, tableFrame);
|
|
const nsStyleVisibility* groupVis = StyleVisibility();
|
|
bool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible);
|
|
if (collapseGroup) {
|
|
tableFrame->SetNeedToCollapse(true);
|
|
}
|
|
|
|
// Check for an overflow list
|
|
MoveOverflowToChildList();
|
|
|
|
// Reflow the existing frames.
|
|
bool splitDueToPageBreak = false;
|
|
ReflowChildren(aPresContext, aDesiredSize, state, aStatus,
|
|
&splitDueToPageBreak);
|
|
|
|
// See if all the frames fit. Do not try to split anything if we're
|
|
// not paginated ... we can't split across columns yet.
|
|
if (aReflowState.mFlags.mTableIsSplittable &&
|
|
NS_UNCONSTRAINEDSIZE != aReflowState.AvailableHeight() &&
|
|
(NS_FRAME_NOT_COMPLETE == aStatus || splitDueToPageBreak ||
|
|
aDesiredSize.Height() > aReflowState.AvailableHeight())) {
|
|
// Nope, find a place to split the row group
|
|
bool specialReflow = (bool)aReflowState.mFlags.mSpecialHeightReflow;
|
|
((nsHTMLReflowState::ReflowStateFlags&)aReflowState.mFlags).mSpecialHeightReflow = false;
|
|
|
|
SplitRowGroup(aPresContext, aDesiredSize, aReflowState, tableFrame, aStatus,
|
|
splitDueToPageBreak);
|
|
|
|
((nsHTMLReflowState::ReflowStateFlags&)aReflowState.mFlags).mSpecialHeightReflow = specialReflow;
|
|
}
|
|
|
|
// XXXmats The following is just bogus. We leave it here for now because
|
|
// ReflowChildren should pull up rows from our next-in-flow before returning
|
|
// a Complete status, but doesn't (bug 804888).
|
|
if (GetNextInFlow() && GetNextInFlow()->GetFirstPrincipalChild()) {
|
|
NS_FRAME_SET_INCOMPLETE(aStatus);
|
|
}
|
|
|
|
SetHasStyleHeight((NS_UNCONSTRAINEDSIZE != aReflowState.ComputedHeight()) &&
|
|
(aReflowState.ComputedHeight() > 0));
|
|
|
|
// just set our width to what was available. The table will calculate the width and not use our value.
|
|
aDesiredSize.Width() = aReflowState.AvailableWidth();
|
|
|
|
aDesiredSize.UnionOverflowAreasWithDesiredBounds();
|
|
|
|
// If our parent is in initial reflow, it'll handle invalidating our
|
|
// entire overflow rect.
|
|
if (!(GetParent()->GetStateBits() & NS_FRAME_FIRST_REFLOW) &&
|
|
nsSize(aDesiredSize.Width(), aDesiredSize.Height()) != mRect.Size()) {
|
|
InvalidateFrame();
|
|
}
|
|
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
}
|
|
|
|
bool
|
|
nsTableRowGroupFrame::UpdateOverflow()
|
|
{
|
|
// Row cursor invariants depend on the visual overflow area of the rows,
|
|
// which may have changed, so we need to clear the cursor now.
|
|
ClearRowCursor();
|
|
return nsContainerFrame::UpdateOverflow();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsTableRowGroupFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
|
|
{
|
|
nsContainerFrame::DidSetStyleContext(aOldStyleContext);
|
|
|
|
if (!aOldStyleContext) //avoid this on init
|
|
return;
|
|
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
if (tableFrame->IsBorderCollapse() &&
|
|
tableFrame->BCRecalcNeeded(aOldStyleContext, StyleContext())) {
|
|
nsIntRect damageArea(0, GetStartRowIndex(), tableFrame->GetColCount(),
|
|
GetRowCount());
|
|
tableFrame->AddBCDamageArea(damageArea);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
|
|
ClearRowCursor();
|
|
|
|
// collect the new row frames in an array
|
|
// XXXbz why are we doing the QI stuff? There shouldn't be any non-rows here.
|
|
nsAutoTArray<nsTableRowFrame*, 8> rows;
|
|
for (nsFrameList::Enumerator e(aFrameList); !e.AtEnd(); e.Next()) {
|
|
nsTableRowFrame *rowFrame = do_QueryFrame(e.get());
|
|
NS_ASSERTION(rowFrame, "Unexpected frame; frame constructor screwed up");
|
|
if (rowFrame) {
|
|
NS_ASSERTION(NS_STYLE_DISPLAY_TABLE_ROW ==
|
|
e.get()->StyleDisplay()->mDisplay,
|
|
"wrong display type on rowframe");
|
|
rows.AppendElement(rowFrame);
|
|
}
|
|
}
|
|
|
|
int32_t rowIndex = GetRowCount();
|
|
// Append the frames to the sibling chain
|
|
mFrames.AppendFrames(nullptr, aFrameList);
|
|
|
|
if (rows.Length() > 0) {
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
tableFrame->AppendRows(this, rowIndex, rows);
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
tableFrame->SetGeometryDirty();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::InsertFrames(ChildListID aListID,
|
|
nsIFrame* aPrevFrame,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
|
|
"inserting after sibling frame with different parent");
|
|
|
|
ClearRowCursor();
|
|
|
|
// collect the new row frames in an array
|
|
// XXXbz why are we doing the QI stuff? There shouldn't be any non-rows here.
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
nsTArray<nsTableRowFrame*> rows;
|
|
bool gotFirstRow = false;
|
|
for (nsFrameList::Enumerator e(aFrameList); !e.AtEnd(); e.Next()) {
|
|
nsTableRowFrame *rowFrame = do_QueryFrame(e.get());
|
|
NS_ASSERTION(rowFrame, "Unexpected frame; frame constructor screwed up");
|
|
if (rowFrame) {
|
|
NS_ASSERTION(NS_STYLE_DISPLAY_TABLE_ROW ==
|
|
e.get()->StyleDisplay()->mDisplay,
|
|
"wrong display type on rowframe");
|
|
rows.AppendElement(rowFrame);
|
|
if (!gotFirstRow) {
|
|
rowFrame->SetFirstInserted(true);
|
|
gotFirstRow = true;
|
|
tableFrame->SetRowInserted(true);
|
|
}
|
|
}
|
|
}
|
|
|
|
int32_t startRowIndex = GetStartRowIndex();
|
|
// Insert the frames in the sibling chain
|
|
mFrames.InsertFrames(nullptr, aPrevFrame, aFrameList);
|
|
|
|
int32_t numRows = rows.Length();
|
|
if (numRows > 0) {
|
|
nsTableRowFrame* prevRow = (nsTableRowFrame *)nsTableFrame::GetFrameAtOrBefore(this, aPrevFrame, nsGkAtoms::tableRowFrame);
|
|
int32_t rowIndex = (prevRow) ? prevRow->GetRowIndex() + 1 : startRowIndex;
|
|
tableFrame->InsertRows(this, rows, rowIndex, true);
|
|
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
tableFrame->SetGeometryDirty();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::RemoveFrame(ChildListID aListID,
|
|
nsIFrame* aOldFrame)
|
|
{
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
|
|
ClearRowCursor();
|
|
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
// XXX why are we doing the QI stuff? There shouldn't be any non-rows here.
|
|
nsTableRowFrame* rowFrame = do_QueryFrame(aOldFrame);
|
|
if (rowFrame) {
|
|
// remove the rows from the table (and flag a rebalance)
|
|
tableFrame->RemoveRows(*rowFrame, 1, true);
|
|
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
tableFrame->SetGeometryDirty();
|
|
}
|
|
mFrames.DestroyFrame(aOldFrame);
|
|
}
|
|
|
|
/* virtual */ nsMargin
|
|
nsTableRowGroupFrame::GetUsedMargin() const
|
|
{
|
|
return nsMargin(0,0,0,0);
|
|
}
|
|
|
|
/* virtual */ nsMargin
|
|
nsTableRowGroupFrame::GetUsedBorder() const
|
|
{
|
|
return nsMargin(0,0,0,0);
|
|
}
|
|
|
|
/* virtual */ nsMargin
|
|
nsTableRowGroupFrame::GetUsedPadding() const
|
|
{
|
|
return nsMargin(0,0,0,0);
|
|
}
|
|
|
|
nscoord
|
|
nsTableRowGroupFrame::GetHeightBasis(const nsHTMLReflowState& aReflowState)
|
|
{
|
|
nscoord result = 0;
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
int32_t startRowIndex = GetStartRowIndex();
|
|
if ((aReflowState.ComputedHeight() > 0) && (aReflowState.ComputedHeight() < NS_UNCONSTRAINEDSIZE)) {
|
|
nscoord cellSpacing = tableFrame->GetCellSpacingY(startRowIndex,
|
|
std::max(startRowIndex,
|
|
startRowIndex + GetRowCount() - 1));
|
|
result = aReflowState.ComputedHeight() - cellSpacing;
|
|
}
|
|
else {
|
|
const nsHTMLReflowState* parentRS = aReflowState.parentReflowState;
|
|
if (parentRS && (tableFrame != parentRS->frame)) {
|
|
parentRS = parentRS->parentReflowState;
|
|
}
|
|
if (parentRS && (tableFrame == parentRS->frame) &&
|
|
(parentRS->ComputedHeight() > 0) && (parentRS->ComputedHeight() < NS_UNCONSTRAINEDSIZE)) {
|
|
nscoord cellSpacing = tableFrame->GetCellSpacingY(-1, tableFrame->GetRowCount());
|
|
result = parentRS->ComputedHeight() - cellSpacing;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool
|
|
nsTableRowGroupFrame::IsSimpleRowFrame(nsTableFrame* aTableFrame,
|
|
nsIFrame* aFrame)
|
|
{
|
|
// Make sure it's a row frame and not a row group frame
|
|
nsTableRowFrame *rowFrame = do_QueryFrame(aFrame);
|
|
if (rowFrame) {
|
|
int32_t rowIndex = rowFrame->GetRowIndex();
|
|
|
|
// It's a simple row frame if there are no cells that span into or
|
|
// across the row
|
|
int32_t numEffCols = aTableFrame->GetEffectiveColCount();
|
|
if (!aTableFrame->RowIsSpannedInto(rowIndex, numEffCols) &&
|
|
!aTableFrame->RowHasSpanningCells(rowIndex, numEffCols)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
nsIAtom*
|
|
nsTableRowGroupFrame::GetType() const
|
|
{
|
|
return nsGkAtoms::tableRowGroupFrame;
|
|
}
|
|
|
|
/** find page break before the first row **/
|
|
bool
|
|
nsTableRowGroupFrame::HasInternalBreakBefore() const
|
|
{
|
|
nsIFrame* firstChild = mFrames.FirstChild();
|
|
if (!firstChild)
|
|
return false;
|
|
return firstChild->StyleDisplay()->mBreakBefore;
|
|
}
|
|
|
|
/** find page break after the last row **/
|
|
bool
|
|
nsTableRowGroupFrame::HasInternalBreakAfter() const
|
|
{
|
|
nsIFrame* lastChild = mFrames.LastChild();
|
|
if (!lastChild)
|
|
return false;
|
|
return lastChild->StyleDisplay()->mBreakAfter;
|
|
}
|
|
/* ----- global methods ----- */
|
|
|
|
nsTableRowGroupFrame*
|
|
NS_NewTableRowGroupFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsTableRowGroupFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsTableRowGroupFrame)
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
nsresult
|
|
nsTableRowGroupFrame::GetFrameName(nsAString& aResult) const
|
|
{
|
|
return MakeFrameName(NS_LITERAL_STRING("TableRowGroup"), aResult);
|
|
}
|
|
#endif
|
|
|
|
nsMargin*
|
|
nsTableRowGroupFrame::GetBCBorderWidth(nsMargin& aBorder)
|
|
{
|
|
aBorder.left = aBorder.right = aBorder.top = aBorder.bottom = 0;
|
|
|
|
nsTableRowFrame* firstRowFrame = nullptr;
|
|
nsTableRowFrame* lastRowFrame = nullptr;
|
|
for (nsTableRowFrame* rowFrame = GetFirstRow(); rowFrame; rowFrame = rowFrame->GetNextRow()) {
|
|
if (!firstRowFrame) {
|
|
firstRowFrame = rowFrame;
|
|
}
|
|
lastRowFrame = rowFrame;
|
|
}
|
|
if (firstRowFrame) {
|
|
aBorder.top = nsPresContext::CSSPixelsToAppUnits(firstRowFrame->GetTopBCBorderWidth());
|
|
aBorder.bottom = nsPresContext::CSSPixelsToAppUnits(lastRowFrame->GetBottomBCBorderWidth());
|
|
}
|
|
|
|
return &aBorder;
|
|
}
|
|
|
|
void nsTableRowGroupFrame::SetContinuousBCBorderWidth(uint8_t aForSide,
|
|
BCPixelSize aPixelValue)
|
|
{
|
|
switch (aForSide) {
|
|
case NS_SIDE_RIGHT:
|
|
mRightContBorderWidth = aPixelValue;
|
|
return;
|
|
case NS_SIDE_BOTTOM:
|
|
mBottomContBorderWidth = aPixelValue;
|
|
return;
|
|
case NS_SIDE_LEFT:
|
|
mLeftContBorderWidth = aPixelValue;
|
|
return;
|
|
default:
|
|
NS_ERROR("invalid NS_SIDE argument");
|
|
}
|
|
}
|
|
|
|
//nsILineIterator methods
|
|
int32_t
|
|
nsTableRowGroupFrame::GetNumLines()
|
|
{
|
|
return GetRowCount();
|
|
}
|
|
|
|
bool
|
|
nsTableRowGroupFrame::GetDirection()
|
|
{
|
|
nsTableFrame* table = nsTableFrame::GetTableFrame(this);
|
|
return (NS_STYLE_DIRECTION_RTL ==
|
|
table->StyleVisibility()->mDirection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowGroupFrame::GetLine(int32_t aLineNumber,
|
|
nsIFrame** aFirstFrameOnLine,
|
|
int32_t* aNumFramesOnLine,
|
|
nsRect& aLineBounds,
|
|
uint32_t* aLineFlags)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aFirstFrameOnLine);
|
|
NS_ENSURE_ARG_POINTER(aNumFramesOnLine);
|
|
NS_ENSURE_ARG_POINTER(aLineFlags);
|
|
|
|
nsTableFrame* table = nsTableFrame::GetTableFrame(this);
|
|
nsTableCellMap* cellMap = table->GetCellMap();
|
|
|
|
*aLineFlags = 0;
|
|
*aFirstFrameOnLine = nullptr;
|
|
*aNumFramesOnLine = 0;
|
|
aLineBounds.SetRect(0, 0, 0, 0);
|
|
|
|
if ((aLineNumber < 0) || (aLineNumber >= GetRowCount())) {
|
|
return NS_OK;
|
|
}
|
|
aLineNumber += GetStartRowIndex();
|
|
|
|
*aNumFramesOnLine = cellMap->GetNumCellsOriginatingInRow(aLineNumber);
|
|
if (*aNumFramesOnLine == 0) {
|
|
return NS_OK;
|
|
}
|
|
int32_t colCount = table->GetColCount();
|
|
for (int32_t i = 0; i < colCount; i++) {
|
|
CellData* data = cellMap->GetDataAt(aLineNumber, i);
|
|
if (data && data->IsOrig()) {
|
|
*aFirstFrameOnLine = (nsIFrame*)data->GetCellFrame();
|
|
nsIFrame* parent = (*aFirstFrameOnLine)->GetParent();
|
|
aLineBounds = parent->GetRect();
|
|
return NS_OK;
|
|
}
|
|
}
|
|
NS_ERROR("cellmap is lying");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
int32_t
|
|
nsTableRowGroupFrame::FindLineContaining(nsIFrame* aFrame, int32_t aStartLine)
|
|
{
|
|
NS_ENSURE_TRUE(aFrame, -1);
|
|
|
|
nsTableRowFrame *rowFrame = do_QueryFrame(aFrame);
|
|
NS_ASSERTION(rowFrame, "RowGroup contains a frame that is not a row");
|
|
|
|
int32_t rowIndexInGroup = rowFrame->GetRowIndex() - GetStartRowIndex();
|
|
|
|
return rowIndexInGroup >= aStartLine ? rowIndexInGroup : -1;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowGroupFrame::CheckLineOrder(int32_t aLine,
|
|
bool *aIsReordered,
|
|
nsIFrame **aFirstVisual,
|
|
nsIFrame **aLastVisual)
|
|
{
|
|
*aIsReordered = false;
|
|
*aFirstVisual = nullptr;
|
|
*aLastVisual = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowGroupFrame::FindFrameAt(int32_t aLineNumber,
|
|
nscoord aX,
|
|
nsIFrame** aFrameFound,
|
|
bool* aXIsBeforeFirstFrame,
|
|
bool* aXIsAfterLastFrame)
|
|
{
|
|
nsTableFrame* table = nsTableFrame::GetTableFrame(this);
|
|
nsTableCellMap* cellMap = table->GetCellMap();
|
|
|
|
*aFrameFound = nullptr;
|
|
*aXIsBeforeFirstFrame = true;
|
|
*aXIsAfterLastFrame = false;
|
|
|
|
aLineNumber += GetStartRowIndex();
|
|
int32_t numCells = cellMap->GetNumCellsOriginatingInRow(aLineNumber);
|
|
if (numCells == 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIFrame* frame = nullptr;
|
|
int32_t colCount = table->GetColCount();
|
|
for (int32_t i = 0; i < colCount; i++) {
|
|
CellData* data = cellMap->GetDataAt(aLineNumber, i);
|
|
if (data && data->IsOrig()) {
|
|
frame = (nsIFrame*)data->GetCellFrame();
|
|
break;
|
|
}
|
|
}
|
|
NS_ASSERTION(frame, "cellmap is lying");
|
|
bool isRTL = (NS_STYLE_DIRECTION_RTL ==
|
|
table->StyleVisibility()->mDirection);
|
|
|
|
nsIFrame* closestFromLeft = nullptr;
|
|
nsIFrame* closestFromRight = nullptr;
|
|
int32_t n = numCells;
|
|
nsIFrame* firstFrame = frame;
|
|
while (n--) {
|
|
nsRect rect = frame->GetRect();
|
|
if (rect.width > 0) {
|
|
// If aX is inside this frame - this is it
|
|
if (rect.x <= aX && rect.XMost() > aX) {
|
|
closestFromLeft = closestFromRight = frame;
|
|
break;
|
|
}
|
|
if (rect.x < aX) {
|
|
if (!closestFromLeft ||
|
|
rect.XMost() > closestFromLeft->GetRect().XMost())
|
|
closestFromLeft = frame;
|
|
}
|
|
else {
|
|
if (!closestFromRight ||
|
|
rect.x < closestFromRight->GetRect().x)
|
|
closestFromRight = frame;
|
|
}
|
|
}
|
|
frame = frame->GetNextSibling();
|
|
}
|
|
if (!closestFromLeft && !closestFromRight) {
|
|
// All frames were zero-width. Just take the first one.
|
|
closestFromLeft = closestFromRight = firstFrame;
|
|
}
|
|
*aXIsBeforeFirstFrame = isRTL ? !closestFromRight : !closestFromLeft;
|
|
*aXIsAfterLastFrame = isRTL ? !closestFromLeft : !closestFromRight;
|
|
if (closestFromLeft == closestFromRight) {
|
|
*aFrameFound = closestFromLeft;
|
|
}
|
|
else if (!closestFromLeft) {
|
|
*aFrameFound = closestFromRight;
|
|
}
|
|
else if (!closestFromRight) {
|
|
*aFrameFound = closestFromLeft;
|
|
}
|
|
else { // we're between two frames
|
|
nscoord delta = closestFromRight->GetRect().x -
|
|
closestFromLeft->GetRect().XMost();
|
|
if (aX < closestFromLeft->GetRect().XMost() + delta/2)
|
|
*aFrameFound = closestFromLeft;
|
|
else
|
|
*aFrameFound = closestFromRight;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowGroupFrame::GetNextSiblingOnLine(nsIFrame*& aFrame,
|
|
int32_t aLineNumber)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aFrame);
|
|
aFrame = aFrame->GetNextSibling();
|
|
return NS_OK;
|
|
}
|
|
|
|
//end nsLineIterator methods
|
|
|
|
static void
|
|
DestroyFrameCursorData(void* aPropertyValue)
|
|
{
|
|
delete static_cast<nsTableRowGroupFrame::FrameCursorData*>(aPropertyValue);
|
|
}
|
|
|
|
NS_DECLARE_FRAME_PROPERTY(RowCursorProperty, DestroyFrameCursorData)
|
|
|
|
void
|
|
nsTableRowGroupFrame::ClearRowCursor()
|
|
{
|
|
if (!(GetStateBits() & NS_ROWGROUP_HAS_ROW_CURSOR))
|
|
return;
|
|
|
|
RemoveStateBits(NS_ROWGROUP_HAS_ROW_CURSOR);
|
|
Properties().Delete(RowCursorProperty());
|
|
}
|
|
|
|
nsTableRowGroupFrame::FrameCursorData*
|
|
nsTableRowGroupFrame::SetupRowCursor()
|
|
{
|
|
if (GetStateBits() & NS_ROWGROUP_HAS_ROW_CURSOR) {
|
|
// We already have a valid row cursor. Don't waste time rebuilding it.
|
|
return nullptr;
|
|
}
|
|
|
|
nsIFrame* f = mFrames.FirstChild();
|
|
int32_t count;
|
|
for (count = 0; f && count < MIN_ROWS_NEEDING_CURSOR; ++count) {
|
|
f = f->GetNextSibling();
|
|
}
|
|
if (!f) {
|
|
// Less than MIN_ROWS_NEEDING_CURSOR rows, so just don't bother
|
|
return nullptr;
|
|
}
|
|
|
|
FrameCursorData* data = new FrameCursorData();
|
|
if (!data)
|
|
return nullptr;
|
|
Properties().Set(RowCursorProperty(), data);
|
|
AddStateBits(NS_ROWGROUP_HAS_ROW_CURSOR);
|
|
return data;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsTableRowGroupFrame::GetFirstRowContaining(nscoord aY, nscoord* aOverflowAbove)
|
|
{
|
|
if (!(GetStateBits() & NS_ROWGROUP_HAS_ROW_CURSOR))
|
|
return nullptr;
|
|
|
|
FrameCursorData* property = static_cast<FrameCursorData*>
|
|
(Properties().Get(RowCursorProperty()));
|
|
uint32_t cursorIndex = property->mCursorIndex;
|
|
uint32_t frameCount = property->mFrames.Length();
|
|
if (cursorIndex >= frameCount)
|
|
return nullptr;
|
|
nsIFrame* cursorFrame = property->mFrames[cursorIndex];
|
|
|
|
// The cursor's frame list excludes frames with empty overflow-area, so
|
|
// we don't need to check that here.
|
|
|
|
// We use property->mOverflowBelow here instead of computing the frame's
|
|
// true overflowArea.YMost(), because it is essential for the thresholds
|
|
// to form a monotonically increasing sequence. Otherwise we would break
|
|
// encountering a row whose overflowArea.YMost() is <= aY but which has
|
|
// a row above it containing cell(s) that span to include aY.
|
|
while (cursorIndex > 0 &&
|
|
cursorFrame->GetRect().YMost() + property->mOverflowBelow > aY) {
|
|
--cursorIndex;
|
|
cursorFrame = property->mFrames[cursorIndex];
|
|
}
|
|
while (cursorIndex + 1 < frameCount &&
|
|
cursorFrame->GetRect().YMost() + property->mOverflowBelow <= aY) {
|
|
++cursorIndex;
|
|
cursorFrame = property->mFrames[cursorIndex];
|
|
}
|
|
|
|
property->mCursorIndex = cursorIndex;
|
|
*aOverflowAbove = property->mOverflowAbove;
|
|
return cursorFrame;
|
|
}
|
|
|
|
bool
|
|
nsTableRowGroupFrame::FrameCursorData::AppendFrame(nsIFrame* aFrame)
|
|
{
|
|
nsRect overflowRect = aFrame->GetVisualOverflowRect();
|
|
if (overflowRect.IsEmpty())
|
|
return true;
|
|
nscoord overflowAbove = -overflowRect.y;
|
|
nscoord overflowBelow = overflowRect.YMost() - aFrame->GetSize().height;
|
|
mOverflowAbove = std::max(mOverflowAbove, overflowAbove);
|
|
mOverflowBelow = std::max(mOverflowBelow, overflowBelow);
|
|
return mFrames.AppendElement(aFrame) != nullptr;
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::InvalidateFrame(uint32_t aDisplayItemKey)
|
|
{
|
|
nsIFrame::InvalidateFrame(aDisplayItemKey);
|
|
GetParent()->InvalidateFrameWithRect(GetVisualOverflowRect() + GetPosition(), aDisplayItemKey);
|
|
}
|
|
|
|
void
|
|
nsTableRowGroupFrame::InvalidateFrameWithRect(const nsRect& aRect, uint32_t aDisplayItemKey)
|
|
{
|
|
nsIFrame::InvalidateFrameWithRect(aRect, aDisplayItemKey);
|
|
// If we have filters applied that would affects our bounds, then
|
|
// we get an inactive layer created and this is computed
|
|
// within FrameLayerBuilder
|
|
GetParent()->InvalidateFrameWithRect(aRect + GetPosition(), aDisplayItemKey);
|
|
}
|