forked from mirrors/gecko-dev
9ab4b4f5d3
Depends on D105289 Differential Revision: https://phabricator.services.mozilla.com/D105290
1959 lines
76 KiB
C++
1959 lines
76 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 "nsTableRowGroupFrame.h"
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#include "mozilla/ComputedStyle.h"
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#include "mozilla/PresShell.h"
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#include "nsCOMPtr.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 "nsStyleConsts.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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#include "nsIFrameInlines.h"
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#include "nsGkAtoms.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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namespace mozilla {
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struct TableRowGroupReflowInput {
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const ReflowInput& reflowInput; // Our reflow input
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nsTableFrame* tableFrame;
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// The available size (computed from the parent)
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mozilla::LogicalSize availSize;
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// Running block-offset
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nscoord bCoord;
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TableRowGroupReflowInput(const ReflowInput& aReflowInput,
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nsTableFrame* aTableFrame)
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: reflowInput(aReflowInput),
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tableFrame(aTableFrame),
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availSize(aReflowInput.AvailableSize()),
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bCoord(0) {}
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~TableRowGroupReflowInput() = default;
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};
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} // namespace mozilla
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nsTableRowGroupFrame::nsTableRowGroupFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsContainerFrame(aStyle, aPresContext, kClassID) {
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SetRepeatable(false);
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}
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nsTableRowGroupFrame::~nsTableRowGroupFrame() = default;
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void nsTableRowGroupFrame::DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) {
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if (HasAnyStateBits(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, aPostDestroyData);
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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 nsTableRowGroupFrame::GetRowCount() const {
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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(
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e.get()->StyleDisplay()->mDisplay == mozilla::StyleDisplay::TableRow,
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"Unexpected display");
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NS_ASSERTION(e.get()->IsTableRowFrame(), "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() const {
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int32_t result = -1;
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if (mFrames.NotEmpty()) {
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NS_ASSERTION(mFrames.FirstChild()->IsTableRowFrame(),
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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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return GetTableFrame()->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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for (nsIFrame* rowFrame : mFrames) {
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if (mozilla::StyleDisplay::TableRow == 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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int32_t nsTableRowGroupFrame::GetAdjustmentForStoredIndex(
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int32_t aStoredIndex) {
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nsTableFrame* tableFrame = GetTableFrame();
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return tableFrame->GetAdjustmentForStoredIndex(aStoredIndex);
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}
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void nsTableRowGroupFrame::MarkRowsAsDeleted(nsTableRowFrame& aStartRowFrame,
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int32_t aNumRowsToDelete) {
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nsTableRowFrame* currentRowFrame = &aStartRowFrame;
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for (;;) {
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// XXXneerja - Instead of calling AddDeletedRowIndex() per row frame
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// it is possible to change AddDeleteRowIndex to instead take
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// <start row index> and <num of rows to mark for deletion> as arguments.
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// The problem that emerges here is mDeletedRowIndexRanges only stores
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// disjoint index ranges and since AddDeletedRowIndex() must operate on
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// the "stored" index, in some cases it is possible that the range
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// of indices to delete becomes overlapping EG: Deleting rows 9 - 11 and
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// then from the remaining rows deleting the *new* rows 7 to 20.
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// Handling these overlapping ranges is much more complicated to
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// implement and so I opted to add the deleted row index of one row at a
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// time and maintain the invariant that the range of deleted row indices
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// is always disjoint.
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currentRowFrame->AddDeletedRowIndex();
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if (--aNumRowsToDelete == 0) {
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break;
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}
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currentRowFrame = do_QueryFrame(currentRowFrame->GetNextSibling());
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if (!currentRowFrame) {
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MOZ_ASSERT_UNREACHABLE("expected another row frame");
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break;
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}
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}
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}
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void nsTableRowGroupFrame::AddDeletedRowIndex(int32_t aDeletedRowStoredIndex) {
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nsTableFrame* tableFrame = GetTableFrame();
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return tableFrame->AddDeletedRowIndex(aDeletedRowStoredIndex);
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}
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nsresult nsTableRowGroupFrame::InitRepeatedFrame(
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nsTableRowGroupFrame* aHeaderFooterFrame) {
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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(
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originalCellFrame->GetContent() == copyCellFrame->GetContent(),
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"cell frames have different content");
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uint32_t colIndex = originalCellFrame->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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// Handle the child-traversal part of DisplayGenericTablePart
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static void DisplayRows(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
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const nsDisplayListSet& aLists) {
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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, true)
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? nullptr
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: f->GetFirstRowContaining(aBuilder->GetVisibleRect().y,
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&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 >=
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aBuilder->GetVisibleRect().YMost()) {
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break;
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}
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f->BuildDisplayListForChild(aBuilder, kid, 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
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// it
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nsTableRowGroupFrame::FrameCursorData* cursor = f->SetupRowCursor();
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kid = f->PrincipalChildList().FirstChild();
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while (kid) {
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f->BuildDisplayListForChild(aBuilder, kid, 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 nsTableRowGroupFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) {
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DisplayOutsetBoxShadow(aBuilder, aLists.BorderBackground());
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for (nsTableRowFrame* row = GetFirstRow(); row; row = row->GetNextRow()) {
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if (!aBuilder->GetDirtyRect().Intersects(row->InkOverflowRect() +
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row->GetNormalPosition())) {
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continue;
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}
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row->PaintCellBackgroundsForFrame(this, aBuilder, aLists,
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row->GetNormalPosition());
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}
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DisplayInsetBoxShadow(aBuilder, aLists.BorderBackground());
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DisplayOutline(aBuilder, aLists);
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DisplayRows(aBuilder, this, aLists);
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}
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LogicalSides nsTableRowGroupFrame::GetLogicalSkipSides() const {
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LogicalSides skip(mWritingMode);
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if (MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak ==
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StyleBoxDecorationBreak::Clone)) {
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return skip;
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}
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if (GetPrevInFlow()) {
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skip |= eLogicalSideBitsBStart;
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}
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if (GetNextInFlow()) {
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skip |= eLogicalSideBitsBEnd;
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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 input.
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void nsTableRowGroupFrame::PlaceChild(
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nsPresContext* aPresContext, TableRowGroupReflowInput& aReflowInput,
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nsIFrame* aKidFrame, const ReflowInput& aKidReflowInput, WritingMode aWM,
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const LogicalPoint& aKidPosition, const nsSize& aContainerSize,
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ReflowOutput& aDesiredSize, const nsRect& aOriginalKidRect,
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const nsRect& aOriginalKidInkOverflow) {
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bool isFirstReflow = aKidFrame->HasAnyStateBits(NS_FRAME_FIRST_REFLOW);
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// Place and size the child
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FinishReflowChild(aKidFrame, aPresContext, aDesiredSize, &aKidReflowInput,
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aWM, aKidPosition, aContainerSize,
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ReflowChildFlags::ApplyRelativePositioning);
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nsTableFrame* tableFrame = GetTableFrame();
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if (tableFrame->IsBorderCollapse()) {
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nsTableFrame::InvalidateTableFrame(aKidFrame, aOriginalKidRect,
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aOriginalKidInkOverflow, isFirstReflow);
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}
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// Adjust the running block-offset
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aReflowInput.bCoord += aDesiredSize.BSize(aWM);
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// If our block-size is constrained then update the available bsize
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if (NS_UNCONSTRAINEDSIZE != aReflowInput.availSize.BSize(aWM)) {
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aReflowInput.availSize.BSize(aWM) -= aDesiredSize.BSize(aWM);
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}
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}
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void nsTableRowGroupFrame::InitChildReflowInput(nsPresContext& aPresContext,
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bool aBorderCollapse,
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ReflowInput& aReflowInput) {
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const auto childWM = aReflowInput.GetWritingMode();
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LogicalMargin border(childWM);
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if (nsTableRowFrame* rowFrame = do_QueryFrame(aReflowInput.mFrame)) {
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if (aBorderCollapse) {
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border = rowFrame->GetBCBorderWidth(childWM);
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}
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}
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const LogicalMargin zeroPadding(childWM);
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aReflowInput.Init(&aPresContext, Nothing(), Some(border), Some(zeroPadding));
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}
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static void CacheRowBSizesForPrinting(nsPresContext* aPresContext,
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nsTableRowFrame* aFirstRow,
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WritingMode aWM) {
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for (nsTableRowFrame* row = aFirstRow; row; row = row->GetNextRow()) {
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if (!row->GetPrevInFlow()) {
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row->SetHasUnpaginatedBSize(true);
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row->SetUnpaginatedBSize(aPresContext, row->BSize(aWM));
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}
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}
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}
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void nsTableRowGroupFrame::ReflowChildren(
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nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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TableRowGroupReflowInput& aReflowInput, nsReflowStatus& aStatus,
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bool* aPageBreakBeforeEnd) {
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if (aPageBreakBeforeEnd) {
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*aPageBreakBeforeEnd = false;
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}
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WritingMode wm = aReflowInput.reflowInput.GetWritingMode();
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nsTableFrame* tableFrame = GetTableFrame();
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const bool borderCollapse = tableFrame->IsBorderCollapse();
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// XXXldb Should we really be checking IsPaginated(),
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// or should we *only* check available block-size?
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// (Think about multi-column layout!)
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bool isPaginated = aPresContext->IsPaginated() &&
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NS_UNCONSTRAINEDSIZE != aReflowInput.availSize.BSize(wm);
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bool haveRow = false;
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bool reflowAllKids = aReflowInput.reflowInput.ShouldReflowAllKids() ||
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tableFrame->IsGeometryDirty() ||
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tableFrame->NeedToCollapse();
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// in vertical-rl mode, we always need the row bsizes in order to
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// get the necessary containerSize for placing our kids
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bool needToCalcRowBSizes = reflowAllKids || wm.IsVerticalRL();
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nsSize containerSize =
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aReflowInput.reflowInput.ComputedSizeAsContainerIfConstrained();
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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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MOZ_ASSERT_UNREACHABLE("yikes, a non-row child");
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continue;
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}
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nscoord cellSpacingB = tableFrame->GetRowSpacing(rowFrame->GetRowIndex());
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haveRow = true;
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// Reflow the row frame
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if (reflowAllKids || kidFrame->IsSubtreeDirty() ||
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(aReflowInput.reflowInput.mFlags.mSpecialBSizeReflow &&
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(isPaginated ||
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kidFrame->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)))) {
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LogicalRect oldKidRect = kidFrame->GetLogicalRect(wm, containerSize);
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nsRect oldKidInkOverflow = kidFrame->InkOverflowRect();
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ReflowOutput desiredSize(aReflowInput.reflowInput);
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desiredSize.ClearSize();
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// Reflow the child into the available space, giving it as much bsize as
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// it wants. We'll deal with splitting later after we've computed the row
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// bsizes, taking into account cells with row spans...
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LogicalSize kidAvailSize = aReflowInput.availSize;
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kidAvailSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
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ReflowInput kidReflowInput(aPresContext, aReflowInput.reflowInput,
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kidFrame, kidAvailSize, Nothing(),
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ReflowInput::InitFlag::CallerWillInit);
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InitChildReflowInput(*aPresContext, borderCollapse, kidReflowInput);
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// This can indicate that columns were resized.
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if (aReflowInput.reflowInput.IsIResize()) {
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kidReflowInput.SetIResize(true);
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}
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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->GetNormalRect().YMost() > 0) {
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kidReflowInput.mFlags.mIsTopOfPage = false;
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}
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LogicalPoint kidPosition(wm, 0, aReflowInput.bCoord);
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ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowInput, wm,
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kidPosition, containerSize, ReflowChildFlags::Default,
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aStatus);
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// Place the child
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PlaceChild(aPresContext, aReflowInput, kidFrame, kidReflowInput, wm,
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kidPosition, containerSize, desiredSize,
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oldKidRect.GetPhysicalRect(wm, containerSize),
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oldKidInkOverflow);
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aReflowInput.bCoord += cellSpacingB;
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if (!reflowAllKids) {
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if (IsSimpleRowFrame(aReflowInput.tableFrame, rowFrame)) {
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// Inform the row of its new bsize.
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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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if (aReflowInput.tableFrame->IsAutoBSize(wm) &&
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!stylePos->BSize(wm).ConvertsToLength()) {
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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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InvalidateFrame();
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} else if (oldKidRect.BSize(wm) != desiredSize.BSize(wm)) {
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needToCalcRowBSizes = true;
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}
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} else {
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needToCalcRowBSizes = 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 =
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nsTableFrame::PageBreakAfter(kidFrame, nextRow);
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}
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}
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} else {
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SlideChild(aReflowInput, kidFrame);
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// Adjust the running b-offset so we know where the next row should be
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// placed
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nscoord bSize = kidFrame->BSize(wm) + cellSpacingB;
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aReflowInput.bCoord += bSize;
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if (NS_UNCONSTRAINEDSIZE != aReflowInput.availSize.BSize(wm)) {
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aReflowInput.availSize.BSize(wm) -= bSize;
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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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aReflowInput.bCoord -=
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tableFrame->GetRowSpacing(GetStartRowIndex() + GetRowCount());
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}
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// Return our desired rect
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aDesiredSize.ISize(wm) = aReflowInput.reflowInput.AvailableISize();
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aDesiredSize.BSize(wm) = aReflowInput.bCoord;
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if (aReflowInput.reflowInput.mFlags.mSpecialBSizeReflow) {
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DidResizeRows(aDesiredSize);
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if (isPaginated) {
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CacheRowBSizesForPrinting(aPresContext, GetFirstRow(), wm);
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}
|
|
} else if (needToCalcRowBSizes) {
|
|
CalculateRowBSizes(aPresContext, aDesiredSize, aReflowInput.reflowInput);
|
|
if (!reflowAllKids) {
|
|
InvalidateFrame();
|
|
}
|
|
}
|
|
}
|
|
|
|
nsTableRowFrame* nsTableRowGroupFrame::GetFirstRow() {
|
|
for (nsIFrame* childFrame : mFrames) {
|
|
nsTableRowFrame* rowFrame = do_QueryFrame(childFrame);
|
|
if (rowFrame) {
|
|
return rowFrame;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
nsTableRowFrame* nsTableRowGroupFrame::GetLastRow() {
|
|
for (auto iter = mFrames.rbegin(), end = mFrames.rend(); iter != end;
|
|
++iter) {
|
|
nsTableRowFrame* rowFrame = do_QueryFrame(*iter);
|
|
if (rowFrame) {
|
|
return rowFrame;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
struct RowInfo {
|
|
RowInfo() { bSize = pctBSize = hasStyleBSize = hasPctBSize = isSpecial = 0; }
|
|
unsigned bSize; // content bsize or fixed bsize, excluding pct bsize
|
|
unsigned pctBSize : 29; // pct bsize
|
|
unsigned hasStyleBSize : 1;
|
|
unsigned hasPctBSize : 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 bsize on the row
|
|
};
|
|
|
|
static void UpdateBSizes(RowInfo& aRowInfo, nscoord aAdditionalBSize,
|
|
nscoord& aTotal, nscoord& aUnconstrainedTotal) {
|
|
aRowInfo.bSize += aAdditionalBSize;
|
|
aTotal += aAdditionalBSize;
|
|
if (!aRowInfo.hasStyleBSize) {
|
|
aUnconstrainedTotal += aAdditionalBSize;
|
|
}
|
|
}
|
|
|
|
void nsTableRowGroupFrame::DidResizeRows(ReflowOutput& aDesiredSize) {
|
|
// Update the cells spanning rows with their new bsizes.
|
|
// This is the place where all of the cells in the row get set to the bsize
|
|
// 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 bsize of all the rows and takes into account
|
|
// style bsize on the row group, style bsizes on rows and cells, style bsizes on
|
|
// rowspans. Actual row bsizes will be adjusted later if the table has a style
|
|
// bsize. Even if rows don't change bsize, this method must be called to set the
|
|
// bsizes of each cell in the row to the bsize of its row.
|
|
void nsTableRowGroupFrame::CalculateRowBSizes(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput) {
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
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 block-size is the block-origin of the 1st row
|
|
// we are about to calculate a block-size for.
|
|
WritingMode wm = aReflowInput.GetWritingMode();
|
|
nsSize containerSize; // actual value is unimportant as we're initially
|
|
// computing sizes, not physical positions
|
|
nscoord startRowGroupBSize =
|
|
startRowFrame->GetLogicalNormalPosition(wm, containerSize).B(wm);
|
|
|
|
int32_t numRows =
|
|
GetRowCount() - (startRowFrame->GetRowIndex() - GetStartRowIndex());
|
|
// Collect the current bsize of each row.
|
|
if (numRows <= 0) return;
|
|
|
|
AutoTArray<RowInfo, 32> rowInfo;
|
|
// XXX(Bug 1631371) Check if this should use a fallible operation as it
|
|
// pretended earlier.
|
|
rowInfo.AppendElements(numRows);
|
|
|
|
bool hasRowSpanningCell = false;
|
|
nscoord bSizeOfRows = 0;
|
|
nscoord bSizeOfUnStyledRows = 0;
|
|
// Get the bsize of each row without considering rowspans. This will be the
|
|
// max of the largest desired bsize of each cell, the largest style bsize of
|
|
// each cell, the style bsize of the row.
|
|
nscoord pctBSizeBasis = GetBSizeBasis(aReflowInput);
|
|
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 nonPctBSize = rowFrame->GetContentBSize();
|
|
if (isPaginated) {
|
|
nonPctBSize = std::max(nonPctBSize, rowFrame->BSize(wm));
|
|
}
|
|
if (!rowFrame->GetPrevInFlow()) {
|
|
if (rowFrame->HasPctBSize()) {
|
|
rowInfo[rowIndex].hasPctBSize = true;
|
|
rowInfo[rowIndex].pctBSize = rowFrame->GetInitialBSize(pctBSizeBasis);
|
|
}
|
|
rowInfo[rowIndex].hasStyleBSize = rowFrame->HasStyleBSize();
|
|
nonPctBSize = std::max(nonPctBSize, rowFrame->GetFixedBSize());
|
|
}
|
|
UpdateBSizes(rowInfo[rowIndex], nonPctBSize, bSizeOfRows,
|
|
bSizeOfUnStyledRows);
|
|
|
|
if (!rowInfo[rowIndex].hasStyleBSize) {
|
|
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 bsize 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 cellSpacingB =
|
|
tableFrame->GetRowSpacing(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 bsize of
|
|
// the rows it spans
|
|
nscoord bsizeOfRowsSpanned = 0;
|
|
nscoord bsizeOfUnStyledRowsSpanned = 0;
|
|
nscoord numSpecialRowsSpanned = 0;
|
|
nscoord cellSpacingTotal = 0;
|
|
int32_t spanX;
|
|
for (spanX = 0; spanX < rowSpan; spanX++) {
|
|
bsizeOfRowsSpanned += rowInfo[rowIndex + spanX].bSize;
|
|
if (!rowInfo[rowIndex + spanX].hasStyleBSize) {
|
|
bsizeOfUnStyledRowsSpanned += rowInfo[rowIndex + spanX].bSize;
|
|
}
|
|
if (0 != spanX) {
|
|
cellSpacingTotal += cellSpacingB;
|
|
}
|
|
if (rowInfo[rowIndex + spanX].isSpecial) {
|
|
numSpecialRowsSpanned++;
|
|
}
|
|
}
|
|
nscoord bsizeOfAreaSpanned = bsizeOfRowsSpanned + cellSpacingTotal;
|
|
// get the bsize of the cell
|
|
LogicalSize cellFrameSize = cellFrame->GetLogicalSize(wm);
|
|
LogicalSize cellDesSize = cellFrame->GetDesiredSize();
|
|
rowFrame->CalculateCellActualBSize(cellFrame, cellDesSize.BSize(wm),
|
|
wm);
|
|
cellFrameSize.BSize(wm) = cellDesSize.BSize(wm);
|
|
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.BSize(wm) +=
|
|
rowFrame->GetMaxCellAscent() - cellFrame->GetCellBaseline();
|
|
}
|
|
|
|
if (bsizeOfAreaSpanned < cellFrameSize.BSize(wm)) {
|
|
// the cell's bsize is larger than the available space of the rows
|
|
// it spans so distribute the excess bsize to the rows affected
|
|
nscoord extra = cellFrameSize.BSize(wm) - bsizeOfAreaSpanned;
|
|
nscoord extraUsed = 0;
|
|
if (0 == numSpecialRowsSpanned) {
|
|
// NS_ASSERTION(bsizeOfRowsSpanned > 0, "invalid row span
|
|
// situation");
|
|
bool haveUnStyledRowsSpanned = (bsizeOfUnStyledRowsSpanned > 0);
|
|
nscoord divisor = (haveUnStyledRowsSpanned)
|
|
? bsizeOfUnStyledRowsSpanned
|
|
: bsizeOfRowsSpanned;
|
|
if (divisor > 0) {
|
|
for (spanX = rowSpan - 1; spanX >= 0; spanX--) {
|
|
if (!haveUnStyledRowsSpanned ||
|
|
!rowInfo[rowIndex + spanX].hasStyleBSize) {
|
|
// The amount of additional space each row gets is
|
|
// proportional to its bsize
|
|
float percent = ((float)rowInfo[rowIndex + spanX].bSize) /
|
|
((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 bsize
|
|
UpdateBSizes(rowInfo[rowIndex + spanX], extraForRow,
|
|
bSizeOfRows, bSizeOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extra) {
|
|
NS_ASSERTION((extraUsed == extra),
|
|
"invalid row bsize calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// put everything in the last row
|
|
UpdateBSizes(rowInfo[rowIndex + rowSpan - 1], extra,
|
|
bSizeOfRows, bSizeOfUnStyledRows);
|
|
}
|
|
} 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 bsize
|
|
UpdateBSizes(rowInfo[rowIndex + spanX], extraForRow,
|
|
bSizeOfRows, bSizeOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extra) {
|
|
NS_ASSERTION((extraUsed == extra),
|
|
"invalid row bsize calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} // if (rowSpan > 1)
|
|
cellFrame = cellFrame->GetNextCell();
|
|
} // while (cellFrame)
|
|
} // if (tableFrame->RowHasSpanningCells(startRowIndex + rowIndex) {
|
|
} // while (rowFrame)
|
|
}
|
|
|
|
// pct bsize rows have already got their content bsizes.
|
|
// Give them their pct bsizes up to pctBSizeBasis
|
|
nscoord extra = pctBSizeBasis - bSizeOfRows;
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame && (extra > 0);
|
|
rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
RowInfo& rInfo = rowInfo[rowIndex];
|
|
if (rInfo.hasPctBSize) {
|
|
nscoord rowExtra =
|
|
(rInfo.pctBSize > rInfo.bSize) ? rInfo.pctBSize - rInfo.bSize : 0;
|
|
rowExtra = std::min(rowExtra, extra);
|
|
UpdateBSizes(rInfo, rowExtra, bSizeOfRows, bSizeOfUnStyledRows);
|
|
extra -= rowExtra;
|
|
}
|
|
}
|
|
|
|
bool styleBSizeAllocation = false;
|
|
nscoord rowGroupBSize = startRowGroupBSize + bSizeOfRows +
|
|
tableFrame->GetRowSpacing(0, numRows - 1);
|
|
// if we have a style bsize, allocate the extra bsize to unconstrained rows
|
|
if ((aReflowInput.ComputedBSize() > rowGroupBSize) &&
|
|
(NS_UNCONSTRAINEDSIZE != aReflowInput.ComputedBSize())) {
|
|
nscoord extraComputedBSize = aReflowInput.ComputedBSize() - rowGroupBSize;
|
|
nscoord extraUsed = 0;
|
|
bool haveUnStyledRows = (bSizeOfUnStyledRows > 0);
|
|
nscoord divisor = (haveUnStyledRows) ? bSizeOfUnStyledRows : bSizeOfRows;
|
|
if (divisor > 0) {
|
|
styleBSizeAllocation = true;
|
|
for (rowIndex = 0; rowIndex < numRows; rowIndex++) {
|
|
if (!haveUnStyledRows || !rowInfo[rowIndex].hasStyleBSize) {
|
|
// The amount of additional space each row gets is based on the
|
|
// percentage of space it occupies
|
|
float percent = ((float)rowInfo[rowIndex].bSize) / ((float)divisor);
|
|
// give rows their percentage, except for the last row which gets the
|
|
// remainder
|
|
nscoord extraForRow =
|
|
(numRows - 1 == rowIndex)
|
|
? extraComputedBSize - extraUsed
|
|
: NSToCoordRound(((float)extraComputedBSize) * percent);
|
|
extraForRow = std::min(extraForRow, extraComputedBSize - extraUsed);
|
|
// update the row bsize
|
|
UpdateBSizes(rowInfo[rowIndex], extraForRow, bSizeOfRows,
|
|
bSizeOfUnStyledRows);
|
|
extraUsed += extraForRow;
|
|
if (extraUsed >= extraComputedBSize) {
|
|
NS_ASSERTION((extraUsed == extraComputedBSize),
|
|
"invalid row bsize calculation");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rowGroupBSize = aReflowInput.ComputedBSize();
|
|
}
|
|
|
|
if (wm.IsVertical()) {
|
|
// we need the correct containerSize below for block positioning in
|
|
// vertical-rl writing mode
|
|
containerSize.width = rowGroupBSize;
|
|
}
|
|
|
|
nscoord bOrigin = startRowGroupBSize;
|
|
// update the rows with their (potentially) new bsizes
|
|
for (rowFrame = startRowFrame, rowIndex = 0; rowFrame;
|
|
rowFrame = rowFrame->GetNextRow(), rowIndex++) {
|
|
nsRect rowBounds = rowFrame->GetRect();
|
|
LogicalSize rowBoundsSize(wm, rowBounds.Size());
|
|
nsRect rowInkOverflow = rowFrame->InkOverflowRect();
|
|
nscoord deltaB =
|
|
bOrigin - rowFrame->GetLogicalNormalPosition(wm, containerSize).B(wm);
|
|
|
|
nscoord rowBSize =
|
|
(rowInfo[rowIndex].bSize > 0) ? rowInfo[rowIndex].bSize : 0;
|
|
|
|
if (deltaB != 0 || (rowBSize != rowBoundsSize.BSize(wm))) {
|
|
// Resize/move the row to its final size and position
|
|
if (deltaB != 0) {
|
|
rowFrame->InvalidateFrameSubtree();
|
|
}
|
|
|
|
rowFrame->MovePositionBy(wm, LogicalPoint(wm, 0, deltaB));
|
|
rowFrame->SetSize(LogicalSize(wm, rowBoundsSize.ISize(wm), rowBSize));
|
|
|
|
nsTableFrame::InvalidateTableFrame(rowFrame, rowBounds, rowInkOverflow,
|
|
false);
|
|
|
|
if (deltaB != 0) {
|
|
nsTableFrame::RePositionViews(rowFrame);
|
|
// XXXbz we don't need to update our overflow area?
|
|
}
|
|
}
|
|
bOrigin += rowBSize + tableFrame->GetRowSpacing(startRowIndex + rowIndex);
|
|
}
|
|
|
|
if (isPaginated && styleBSizeAllocation) {
|
|
// since the row group has a style bsize, cache the row bsizes,
|
|
// so next in flows can honor them
|
|
CacheRowBSizesForPrinting(aPresContext, GetFirstRow(), wm);
|
|
}
|
|
|
|
DidResizeRows(aDesiredSize);
|
|
|
|
aDesiredSize.BSize(wm) = rowGroupBSize; // Adjust our desired size
|
|
}
|
|
|
|
nscoord nsTableRowGroupFrame::CollapseRowGroupIfNecessary(nscoord aBTotalOffset,
|
|
nscoord aISize,
|
|
WritingMode aWM) {
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
nsSize containerSize = tableFrame->GetSize();
|
|
const nsStyleVisibility* groupVis = StyleVisibility();
|
|
bool collapseGroup = StyleVisibility::Collapse == groupVis->mVisible;
|
|
if (collapseGroup) {
|
|
tableFrame->SetNeedToCollapse(true);
|
|
}
|
|
|
|
OverflowAreas overflow;
|
|
|
|
nsTableRowFrame* rowFrame = GetFirstRow();
|
|
bool didCollapse = false;
|
|
nscoord bGroupOffset = 0;
|
|
while (rowFrame) {
|
|
bGroupOffset += rowFrame->CollapseRowIfNecessary(
|
|
bGroupOffset, aISize, collapseGroup, didCollapse);
|
|
ConsiderChildOverflow(overflow, rowFrame);
|
|
rowFrame = rowFrame->GetNextRow();
|
|
}
|
|
|
|
LogicalRect groupRect = GetLogicalRect(aWM, containerSize);
|
|
nsRect oldGroupRect = GetRect();
|
|
nsRect oldGroupInkOverflow = InkOverflowRect();
|
|
|
|
groupRect.BSize(aWM) -= bGroupOffset;
|
|
if (didCollapse) {
|
|
// add back the cellspacing between rowgroups
|
|
groupRect.BSize(aWM) +=
|
|
tableFrame->GetRowSpacing(GetStartRowIndex() + GetRowCount());
|
|
}
|
|
|
|
groupRect.BStart(aWM) -= aBTotalOffset;
|
|
groupRect.ISize(aWM) = aISize;
|
|
|
|
if (aBTotalOffset != 0) {
|
|
InvalidateFrameSubtree();
|
|
}
|
|
|
|
SetRect(aWM, groupRect, containerSize);
|
|
overflow.UnionAllWith(
|
|
nsRect(0, 0, groupRect.Width(aWM), groupRect.Height(aWM)));
|
|
FinishAndStoreOverflow(overflow, groupRect.Size(aWM).GetPhysicalSize(aWM));
|
|
nsTableFrame::RePositionViews(this);
|
|
nsTableFrame::InvalidateTableFrame(this, oldGroupRect, oldGroupInkOverflow,
|
|
false);
|
|
|
|
return bGroupOffset;
|
|
}
|
|
|
|
// Move a child that was skipped during a reflow.
|
|
void nsTableRowGroupFrame::SlideChild(TableRowGroupReflowInput& aReflowInput,
|
|
nsIFrame* aKidFrame) {
|
|
// Move the frame if we need to.
|
|
WritingMode wm = aReflowInput.reflowInput.GetWritingMode();
|
|
const nsSize containerSize =
|
|
aReflowInput.reflowInput.ComputedSizeAsContainerIfConstrained();
|
|
LogicalPoint oldPosition =
|
|
aKidFrame->GetLogicalNormalPosition(wm, containerSize);
|
|
LogicalPoint newPosition = oldPosition;
|
|
newPosition.B(wm) = aReflowInput.bCoord;
|
|
if (oldPosition.B(wm) != newPosition.B(wm)) {
|
|
aKidFrame->InvalidateFrameSubtree();
|
|
aReflowInput.reflowInput.ApplyRelativePositioning(&newPosition,
|
|
containerSize);
|
|
aKidFrame->SetPosition(wm, newPosition, containerSize);
|
|
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(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 =
|
|
PresShell()->FrameConstructor()->CreateContinuingFrame(&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 ReflowInput& aReflowInput,
|
|
nsTableFrame& aTable, nsTableRowFrame& aFirstRow, nsTableRowFrame& aLastRow,
|
|
bool aFirstRowIsTopOfPage, nscoord aSpanningRowBEnd,
|
|
nsTableRowFrame*& aContRow, nsTableRowFrame*& aFirstTruncatedRow,
|
|
nscoord& aDesiredBSize) {
|
|
NS_ASSERTION(aSpanningRowBEnd >= 0, "Can't split negative bsizes");
|
|
aFirstTruncatedRow = nullptr;
|
|
aDesiredBSize = 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->GetNormalPosition();
|
|
// 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 bsize
|
|
// reflow.
|
|
if ((rowSpan > 1) && (rowIndex + rowSpan > lastRowIndex)) {
|
|
haveRowSpan = true;
|
|
nsReflowStatus status;
|
|
// Ask the row to reflow the cell to the bsize of all the rows it spans
|
|
// up through aLastRow cellAvailBSize is the space between the row group
|
|
// start and the end of the page
|
|
nscoord cellAvailBSize = aSpanningRowBEnd - rowPos.y;
|
|
NS_ASSERTION(cellAvailBSize >= 0, "No space for cell?");
|
|
bool isTopOfPage = (row == &aFirstRow) && aFirstRowIsTopOfPage;
|
|
|
|
nsRect rowRect = row->GetNormalRect();
|
|
nsSize rowAvailSize(
|
|
aReflowInput.AvailableWidth(),
|
|
std::max(aReflowInput.AvailableHeight() - rowRect.y, 0));
|
|
// don't let the available height exceed what
|
|
// CalculateRowBSizes set for it
|
|
rowAvailSize.height = std::min(rowAvailSize.height, rowRect.height);
|
|
ReflowInput rowReflowInput(
|
|
&aPresContext, aReflowInput, row,
|
|
LogicalSize(row->GetWritingMode(), rowAvailSize), Nothing(),
|
|
ReflowInput::InitFlag::CallerWillInit);
|
|
InitChildReflowInput(aPresContext, borderCollapse, rowReflowInput);
|
|
rowReflowInput.mFlags.mIsTopOfPage = isTopOfPage; // set top of page
|
|
|
|
nscoord cellBSize =
|
|
row->ReflowCellFrame(&aPresContext, rowReflowInput, isTopOfPage,
|
|
cell, cellAvailBSize, status);
|
|
aDesiredBSize = std::max(aDesiredBSize, rowPos.y + cellBSize);
|
|
if (status.IsComplete()) {
|
|
if (cellBSize > cellAvailBSize) {
|
|
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(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*>(
|
|
PresShell()->FrameConstructor()->CreateContinuingFrame(
|
|
cell, &aLastRow));
|
|
uint32_t colIndex = cell->ColIndex();
|
|
aContRow->InsertCellFrame(contCell, colIndex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!haveRowSpan) {
|
|
aDesiredBSize = aLastRow.GetNormalRect().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();
|
|
MOZ_ASSERT(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,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsTableFrame* aTableFrame,
|
|
nsReflowStatus& aStatus,
|
|
bool aRowForcedPageBreak) {
|
|
MOZ_ASSERT(aPresContext->IsPaginated(),
|
|
"SplitRowGroup currently supports only paged media");
|
|
|
|
nsTableRowFrame* prevRowFrame = nullptr;
|
|
aDesiredSize.Height() = 0;
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
|
|
const nscoord availWidth = aReflowInput.AvailableWidth();
|
|
const nscoord availHeight = aReflowInput.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 = aReflowInput.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 cellSpacingB = aTableFrame->GetRowSpacing(rowFrame->GetRowIndex());
|
|
nsRect rowRect = rowFrame->GetNormalRect();
|
|
// 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);
|
|
|
|
ReflowInput rowReflowInput(
|
|
aPresContext, aReflowInput, rowFrame,
|
|
LogicalSize(rowFrame->GetWritingMode(), availSize), Nothing(),
|
|
ReflowInput::InitFlag::CallerWillInit);
|
|
|
|
InitChildReflowInput(*aPresContext, borderCollapse, rowReflowInput);
|
|
rowReflowInput.mFlags.mIsTopOfPage = isTopOfPage; // set top of page
|
|
ReflowOutput rowMetrics(aReflowInput);
|
|
|
|
// Get the old size before we reflow.
|
|
nsRect oldRowRect = rowFrame->GetRect();
|
|
nsRect oldRowInkOverflow = rowFrame->InkOverflowRect();
|
|
|
|
// Reflow the cell with the constrained height. A cell with rowspan >1
|
|
// will get this reflow later during SplitSpanningCells.
|
|
ReflowChild(rowFrame, aPresContext, rowMetrics, rowReflowInput, 0, 0,
|
|
ReflowChildFlags::NoMoveFrame, aStatus);
|
|
rowFrame->SetSize(nsSize(rowMetrics.Width(), rowMetrics.Height()));
|
|
rowFrame->DidReflow(aPresContext, nullptr);
|
|
rowFrame->DidResize();
|
|
|
|
if (!aRowForcedPageBreak && !aStatus.IsFullyComplete() &&
|
|
ShouldAvoidBreakInside(aReflowInput)) {
|
|
aStatus.SetInlineLineBreakBeforeAndReset();
|
|
break;
|
|
}
|
|
|
|
nsTableFrame::InvalidateTableFrame(rowFrame, oldRowRect,
|
|
oldRowInkOverflow, false);
|
|
|
|
if (aStatus.IsIncomplete()) {
|
|
// The row frame is incomplete and all of the rowspan 1 cells' block
|
|
// frames split
|
|
if ((rowMetrics.Height() <= rowReflowInput.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() <= rowReflowInput.AvailableHeight(),
|
|
"data loss - incomplete row needed more height than available, "
|
|
"on top of page");
|
|
CreateContinuingRowFrame(*rowFrame, (nsIFrame**)&contRow);
|
|
if (contRow) {
|
|
aDesiredSize.Height() += rowMetrics.Height();
|
|
if (prevRowFrame) aDesiredSize.Height() += cellSpacingB;
|
|
} 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 ||
|
|
(aStatus.IsInlineBreakBefore() && !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.Reset();
|
|
aStatus.SetIncomplete();
|
|
}
|
|
aDesiredSize.Height() += rowMetrics.Height();
|
|
if (prevRowFrame) aDesiredSize.Height() += cellSpacingB;
|
|
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 (!prevRowFrame ||
|
|
(!aRowForcedPageBreak && ShouldAvoidBreakInside(aReflowInput))) {
|
|
aStatus.SetInlineLineBreakBeforeAndReset();
|
|
break;
|
|
}
|
|
spanningRowBottom = prevRowFrame->GetNormalRect().YMost();
|
|
lastRowThisPage = prevRowFrame;
|
|
aStatus.Reset();
|
|
aStatus.SetIncomplete();
|
|
}
|
|
// reflow the cells with rowspan >1 that occur on the page
|
|
|
|
nsTableRowFrame* firstTruncatedRow;
|
|
nscoord bMost;
|
|
SplitSpanningCells(*aPresContext, aReflowInput, *aTableFrame,
|
|
*firstRowThisPage, *lastRowThisPage,
|
|
aReflowInput.mFlags.mIsTopOfPage, spanningRowBottom,
|
|
contRow, firstTruncatedRow, bMost);
|
|
if (firstTruncatedRow) {
|
|
// A rowspan >1 cell did not fit (and could not split) in the space we
|
|
// gave it
|
|
if (firstTruncatedRow == firstRowThisPage) {
|
|
if (aReflowInput.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.Reset();
|
|
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->GetNormalRect().YMost();
|
|
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
nsTableRowFrame* oldLastRowThisPage = lastRowThisPage;
|
|
lastRowThisPage = rowBefore;
|
|
aStatus.Reset();
|
|
aStatus.SetIncomplete();
|
|
|
|
// Call SplitSpanningCells again with rowBefore as the last row on the
|
|
// page
|
|
SplitSpanningCells(
|
|
*aPresContext, aReflowInput, *aTableFrame, *firstRowThisPage,
|
|
*rowBefore, aReflowInput.mFlags.mIsTopOfPage, spanningRowBottom,
|
|
contRow, firstTruncatedRow, aDesiredSize.Height());
|
|
if (firstTruncatedRow) {
|
|
if (aReflowInput.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, aReflowInput, *aTableFrame,
|
|
*firstRowThisPage, *lastRowThisPage,
|
|
aReflowInput.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.Reset();
|
|
UndoContinuedRow(aPresContext, contRow);
|
|
contRow = nullptr;
|
|
}
|
|
}
|
|
} // if (firstTruncatedRow == firstRowThisPage)
|
|
} // if (firstTruncatedRow)
|
|
else {
|
|
aDesiredSize.Height() = std::max(aDesiredSize.Height(), bMost);
|
|
if (contRow) {
|
|
aStatus.Reset();
|
|
aStatus.SetIncomplete();
|
|
}
|
|
}
|
|
if (aStatus.IsIncomplete() && !contRow) {
|
|
if (nsTableRowFrame* nextRow = lastRowThisPage->GetNextRow()) {
|
|
PushChildren(nextRow, lastRowThisPage);
|
|
}
|
|
} else if (aStatus.IsComplete() && lastRowThisPage) {
|
|
// Our size from the unconstrained reflow exceeded the constrained
|
|
// available space but our size in the constrained reflow is Complete.
|
|
// This can happen when a non-zero block-end margin is suppressed in
|
|
// nsBlockFrame::ComputeFinalSize.
|
|
if (nsTableRowFrame* nextRow = lastRowThisPage->GetNextRow()) {
|
|
aStatus.Reset();
|
|
aStatus.SetIncomplete();
|
|
PushChildren(nextRow, lastRowThisPage);
|
|
}
|
|
}
|
|
break;
|
|
} // if (rowRect.YMost() > availHeight)
|
|
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.Reset();
|
|
aStatus.SetIncomplete();
|
|
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,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsTableRowGroupFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
|
|
|
|
// Row geometry may be going to change so we need to invalidate any row
|
|
// cursor.
|
|
ClearRowCursor();
|
|
|
|
// see if a special bsize reflow needs to occur due to having a pct bsize
|
|
nsTableFrame::CheckRequestSpecialBSizeReflow(aReflowInput);
|
|
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
TableRowGroupReflowInput state(aReflowInput, tableFrame);
|
|
const nsStyleVisibility* groupVis = StyleVisibility();
|
|
bool collapseGroup = StyleVisibility::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 (aReflowInput.mFlags.mTableIsSplittable &&
|
|
NS_UNCONSTRAINEDSIZE != aReflowInput.AvailableHeight() &&
|
|
(aStatus.IsIncomplete() || splitDueToPageBreak ||
|
|
aDesiredSize.Height() > aReflowInput.AvailableHeight())) {
|
|
// Nope, find a place to split the row group
|
|
auto& mutableRIFlags = const_cast<ReflowInput::Flags&>(aReflowInput.mFlags);
|
|
const bool savedSpecialBSizeReflow = mutableRIFlags.mSpecialBSizeReflow;
|
|
mutableRIFlags.mSpecialBSizeReflow = false;
|
|
|
|
SplitRowGroup(aPresContext, aDesiredSize, aReflowInput, tableFrame, aStatus,
|
|
splitDueToPageBreak);
|
|
|
|
mutableRIFlags.mSpecialBSizeReflow = savedSpecialBSizeReflow;
|
|
}
|
|
|
|
// 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()->PrincipalChildList().FirstChild()) {
|
|
aStatus.SetIncomplete();
|
|
}
|
|
|
|
SetHasStyleBSize((NS_UNCONSTRAINEDSIZE != aReflowInput.ComputedBSize()) &&
|
|
(aReflowInput.ComputedBSize() > 0));
|
|
|
|
// Just set our isize to what was available.
|
|
// The table will calculate the isize and not use our value.
|
|
WritingMode wm = aReflowInput.GetWritingMode();
|
|
aDesiredSize.ISize(wm) = aReflowInput.AvailableISize();
|
|
|
|
aDesiredSize.UnionOverflowAreasWithDesiredBounds();
|
|
|
|
// If our parent is in initial reflow, it'll handle invalidating our
|
|
// entire overflow rect.
|
|
if (!GetParent()->HasAnyStateBits(NS_FRAME_FIRST_REFLOW) &&
|
|
nsSize(aDesiredSize.Width(), aDesiredSize.Height()) != mRect.Size()) {
|
|
InvalidateFrame();
|
|
}
|
|
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
// Any absolutely-positioned children will get reflowed in
|
|
// nsIFrame::FixupPositionedTableParts in another pass, so propagate our
|
|
// dirtiness to them before our parent clears our dirty bits.
|
|
PushDirtyBitToAbsoluteFrames();
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
|
|
}
|
|
|
|
bool nsTableRowGroupFrame::ComputeCustomOverflow(
|
|
OverflowAreas& aOverflowAreas) {
|
|
// Row cursor invariants depend on the ink overflow area of the rows,
|
|
// which may have changed, so we need to clear the cursor now.
|
|
ClearRowCursor();
|
|
return nsContainerFrame::ComputeCustomOverflow(aOverflowAreas);
|
|
}
|
|
|
|
/* virtual */
|
|
void nsTableRowGroupFrame::DidSetComputedStyle(
|
|
ComputedStyle* aOldComputedStyle) {
|
|
nsContainerFrame::DidSetComputedStyle(aOldComputedStyle);
|
|
|
|
if (!aOldComputedStyle) // avoid this on init
|
|
return;
|
|
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
if (tableFrame->IsBorderCollapse() &&
|
|
tableFrame->BCRecalcNeeded(aOldComputedStyle, Style())) {
|
|
TableArea damageArea(0, GetStartRowIndex(), tableFrame->GetColCount(),
|
|
GetRowCount());
|
|
tableFrame->AddBCDamageArea(damageArea);
|
|
}
|
|
}
|
|
|
|
void nsTableRowGroupFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList) {
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
|
|
DrainSelfOverflowList(); // ensure the last frame is in mFrames
|
|
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.
|
|
AutoTArray<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(
|
|
mozilla::StyleDisplay::TableRow == 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 = GetTableFrame();
|
|
tableFrame->AppendRows(this, rowIndex, rows);
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::TreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
tableFrame->SetGeometryDirty();
|
|
}
|
|
}
|
|
|
|
void nsTableRowGroupFrame::InsertFrames(
|
|
ChildListID aListID, nsIFrame* aPrevFrame,
|
|
const nsLineList::iterator* aPrevFrameLine, nsFrameList& aFrameList) {
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
|
|
"inserting after sibling frame with different parent");
|
|
|
|
DrainSelfOverflowList(); // ensure aPrevFrame is in mFrames
|
|
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 = GetTableFrame();
|
|
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(
|
|
mozilla::StyleDisplay::TableRow == 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, LayoutFrameType::TableRow);
|
|
int32_t rowIndex = (prevRow) ? prevRow->GetRowIndex() + 1 : startRowIndex;
|
|
tableFrame->InsertRows(this, rows, rowIndex, true);
|
|
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::TreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
tableFrame->SetGeometryDirty();
|
|
}
|
|
}
|
|
|
|
void nsTableRowGroupFrame::RemoveFrame(ChildListID aListID,
|
|
nsIFrame* aOldFrame) {
|
|
NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
|
|
|
|
ClearRowCursor();
|
|
|
|
// XXX why are we doing the QI stuff? There shouldn't be any non-rows here.
|
|
nsTableRowFrame* rowFrame = do_QueryFrame(aOldFrame);
|
|
if (rowFrame) {
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
// remove the rows from the table (and flag a rebalance)
|
|
tableFrame->RemoveRows(*rowFrame, 1, true);
|
|
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::TreeChange,
|
|
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::GetBSizeBasis(const ReflowInput& aReflowInput) {
|
|
nscoord result = 0;
|
|
nsTableFrame* tableFrame = GetTableFrame();
|
|
int32_t startRowIndex = GetStartRowIndex();
|
|
if ((aReflowInput.ComputedBSize() > 0) &&
|
|
(aReflowInput.ComputedBSize() < NS_UNCONSTRAINEDSIZE)) {
|
|
nscoord cellSpacing = tableFrame->GetRowSpacing(
|
|
startRowIndex,
|
|
std::max(startRowIndex, startRowIndex + GetRowCount() - 1));
|
|
result = aReflowInput.ComputedBSize() - cellSpacing;
|
|
} else {
|
|
const ReflowInput* parentRI = aReflowInput.mParentReflowInput;
|
|
if (parentRI && (tableFrame != parentRI->mFrame)) {
|
|
parentRI = parentRI->mParentReflowInput;
|
|
}
|
|
if (parentRI && (tableFrame == parentRI->mFrame) &&
|
|
(parentRI->ComputedBSize() > 0) &&
|
|
(parentRI->ComputedBSize() < NS_UNCONSTRAINEDSIZE)) {
|
|
nscoord cellSpacing =
|
|
tableFrame->GetRowSpacing(-1, tableFrame->GetRowCount());
|
|
result = parentRI->ComputedBSize() - cellSpacing;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool nsTableRowGroupFrame::IsSimpleRowFrame(nsTableFrame* aTableFrame,
|
|
nsTableRowFrame* aRowFrame) {
|
|
int32_t rowIndex = aRowFrame->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;
|
|
}
|
|
|
|
/** find page break before the first row **/
|
|
bool nsTableRowGroupFrame::HasInternalBreakBefore() const {
|
|
nsIFrame* firstChild = mFrames.FirstChild();
|
|
if (!firstChild) return false;
|
|
return firstChild->StyleDisplay()->BreakBefore();
|
|
}
|
|
|
|
/** find page break after the last row **/
|
|
bool nsTableRowGroupFrame::HasInternalBreakAfter() const {
|
|
nsIFrame* lastChild = mFrames.LastChild();
|
|
if (!lastChild) return false;
|
|
return lastChild->StyleDisplay()->BreakAfter();
|
|
}
|
|
/* ----- global methods ----- */
|
|
|
|
nsTableRowGroupFrame* NS_NewTableRowGroupFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsTableRowGroupFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsTableRowGroupFrame)
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
nsresult nsTableRowGroupFrame::GetFrameName(nsAString& aResult) const {
|
|
return MakeFrameName(u"TableRowGroup"_ns, aResult);
|
|
}
|
|
#endif
|
|
|
|
LogicalMargin nsTableRowGroupFrame::GetBCBorderWidth(WritingMode aWM) {
|
|
LogicalMargin border(aWM);
|
|
nsTableRowFrame* firstRowFrame = GetFirstRow();
|
|
if (!firstRowFrame) {
|
|
return border;
|
|
}
|
|
nsTableRowFrame* lastRowFrame = firstRowFrame;
|
|
for (nsTableRowFrame* rowFrame = firstRowFrame->GetNextRow(); rowFrame;
|
|
rowFrame = rowFrame->GetNextRow()) {
|
|
lastRowFrame = rowFrame;
|
|
}
|
|
border.BStart(aWM) = PresContext()->DevPixelsToAppUnits(
|
|
firstRowFrame->GetBStartBCBorderWidth());
|
|
border.BEnd(aWM) =
|
|
PresContext()->DevPixelsToAppUnits(lastRowFrame->GetBEndBCBorderWidth());
|
|
return border;
|
|
}
|
|
|
|
void nsTableRowGroupFrame::SetContinuousBCBorderWidth(LogicalSide aForSide,
|
|
BCPixelSize aPixelValue) {
|
|
switch (aForSide) {
|
|
case eLogicalSideIEnd:
|
|
mIEndContBorderWidth = aPixelValue;
|
|
return;
|
|
case eLogicalSideBEnd:
|
|
mBEndContBorderWidth = aPixelValue;
|
|
return;
|
|
case eLogicalSideIStart:
|
|
mIStartContBorderWidth = aPixelValue;
|
|
return;
|
|
default:
|
|
NS_ERROR("invalid LogicalSide argument");
|
|
}
|
|
}
|
|
|
|
// nsILineIterator methods
|
|
int32_t nsTableRowGroupFrame::GetNumLines() const { return GetRowCount(); }
|
|
|
|
bool nsTableRowGroupFrame::GetDirection() {
|
|
return (StyleDirection::Rtl ==
|
|
GetTableFrame()->StyleVisibility()->mDirection);
|
|
}
|
|
|
|
Result<nsILineIterator::LineInfo, nsresult> nsTableRowGroupFrame::GetLine(
|
|
int32_t aLineNumber) const {
|
|
if ((aLineNumber < 0) || (aLineNumber >= GetRowCount())) {
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
LineInfo structure;
|
|
nsTableFrame* table = GetTableFrame();
|
|
nsTableCellMap* cellMap = table->GetCellMap();
|
|
aLineNumber += GetStartRowIndex();
|
|
|
|
structure.mNumFramesOnLine =
|
|
cellMap->GetNumCellsOriginatingInRow(aLineNumber);
|
|
if (structure.mNumFramesOnLine == 0) {
|
|
return structure;
|
|
}
|
|
int32_t colCount = table->GetColCount();
|
|
for (int32_t i = 0; i < colCount; i++) {
|
|
CellData* data = cellMap->GetDataAt(aLineNumber, i);
|
|
if (data && data->IsOrig()) {
|
|
structure.mFirstFrameOnLine = (nsIFrame*)data->GetCellFrame();
|
|
nsIFrame* parent = structure.mFirstFrameOnLine->GetParent();
|
|
structure.mLineBounds = parent->GetRect();
|
|
return structure;
|
|
}
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("cellmap is lying");
|
|
return Err(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, nsPoint aPos,
|
|
nsIFrame** aFrameFound,
|
|
bool* aPosIsBeforeFirstFrame,
|
|
bool* aPosIsAfterLastFrame) const {
|
|
nsTableFrame* table = GetTableFrame();
|
|
nsTableCellMap* cellMap = table->GetCellMap();
|
|
|
|
WritingMode wm = table->GetWritingMode();
|
|
nsSize containerSize = table->GetSize();
|
|
LogicalPoint pos(wm, aPos, containerSize);
|
|
|
|
*aFrameFound = nullptr;
|
|
*aPosIsBeforeFirstFrame = true;
|
|
*aPosIsAfterLastFrame = 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 = (StyleDirection::Rtl == table->StyleVisibility()->mDirection);
|
|
|
|
nsIFrame* closestFromStart = nullptr;
|
|
nsIFrame* closestFromEnd = nullptr;
|
|
int32_t n = numCells;
|
|
nsIFrame* firstFrame = frame;
|
|
while (n--) {
|
|
LogicalRect rect = frame->GetLogicalRect(wm, containerSize);
|
|
if (rect.ISize(wm) > 0) {
|
|
// If pos.I() is inside this frame - this is it
|
|
if (rect.IStart(wm) <= pos.I(wm) && rect.IEnd(wm) > pos.I(wm)) {
|
|
closestFromStart = closestFromEnd = frame;
|
|
break;
|
|
}
|
|
if (rect.IStart(wm) < pos.I(wm)) {
|
|
if (!closestFromStart ||
|
|
rect.IEnd(wm) >
|
|
closestFromStart->GetLogicalRect(wm, containerSize).IEnd(wm))
|
|
closestFromStart = frame;
|
|
} else {
|
|
if (!closestFromEnd ||
|
|
rect.IStart(wm) <
|
|
closestFromEnd->GetLogicalRect(wm, containerSize).IStart(wm))
|
|
closestFromEnd = frame;
|
|
}
|
|
}
|
|
frame = frame->GetNextSibling();
|
|
}
|
|
if (!closestFromStart && !closestFromEnd) {
|
|
// All frames were zero-width. Just take the first one.
|
|
closestFromStart = closestFromEnd = firstFrame;
|
|
}
|
|
*aPosIsBeforeFirstFrame = isRTL ? !closestFromEnd : !closestFromStart;
|
|
*aPosIsAfterLastFrame = isRTL ? !closestFromStart : !closestFromEnd;
|
|
if (closestFromStart == closestFromEnd) {
|
|
*aFrameFound = closestFromStart;
|
|
} else if (!closestFromStart) {
|
|
*aFrameFound = closestFromEnd;
|
|
} else if (!closestFromEnd) {
|
|
*aFrameFound = closestFromStart;
|
|
} else { // we're between two frames
|
|
nscoord delta =
|
|
closestFromEnd->GetLogicalRect(wm, containerSize).IStart(wm) -
|
|
closestFromStart->GetLogicalRect(wm, containerSize).IEnd(wm);
|
|
if (pos.I(wm) <
|
|
closestFromStart->GetLogicalRect(wm, containerSize).IEnd(wm) +
|
|
delta / 2) {
|
|
*aFrameFound = closestFromStart;
|
|
} else {
|
|
*aFrameFound = closestFromEnd;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowGroupFrame::GetNextSiblingOnLine(nsIFrame*& aFrame,
|
|
int32_t aLineNumber) const {
|
|
NS_ENSURE_ARG_POINTER(aFrame);
|
|
aFrame = aFrame->GetNextSibling();
|
|
return NS_OK;
|
|
}
|
|
|
|
// end nsLineIterator methods
|
|
|
|
NS_DECLARE_FRAME_PROPERTY_DELETABLE(RowCursorProperty,
|
|
nsTableRowGroupFrame::FrameCursorData)
|
|
|
|
void nsTableRowGroupFrame::ClearRowCursor() {
|
|
if (!HasAnyStateBits(NS_ROWGROUP_HAS_ROW_CURSOR)) {
|
|
return;
|
|
}
|
|
|
|
RemoveStateBits(NS_ROWGROUP_HAS_ROW_CURSOR);
|
|
RemoveProperty(RowCursorProperty());
|
|
}
|
|
|
|
nsTableRowGroupFrame::FrameCursorData* nsTableRowGroupFrame::SetupRowCursor() {
|
|
if (HasAnyStateBits(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();
|
|
SetProperty(RowCursorProperty(), data);
|
|
AddStateBits(NS_ROWGROUP_HAS_ROW_CURSOR);
|
|
return data;
|
|
}
|
|
|
|
nsIFrame* nsTableRowGroupFrame::GetFirstRowContaining(nscoord aY,
|
|
nscoord* aOverflowAbove) {
|
|
if (!HasAnyStateBits(NS_ROWGROUP_HAS_ROW_CURSOR)) {
|
|
return nullptr;
|
|
}
|
|
|
|
FrameCursorData* property = GetProperty(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) {
|
|
// The cursor requires a monotonically increasing sequence in order to
|
|
// identify which rows can be skipped, and position:relative can move
|
|
// rows around such that the overflow areas don't provide this.
|
|
// We take the union of the overflow rect, and the frame's 'normal' position
|
|
// (excluding position:relative changes) and record the max difference between
|
|
// this combined overflow and the frame's rect.
|
|
nsRect positionedOverflowRect = aFrame->InkOverflowRect();
|
|
nsPoint positionedToNormal =
|
|
aFrame->GetNormalPosition() - aFrame->GetPosition();
|
|
nsRect normalOverflowRect = positionedOverflowRect + positionedToNormal;
|
|
|
|
nsRect overflowRect = positionedOverflowRect.Union(normalOverflowRect);
|
|
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);
|
|
// XXX(Bug 1631371) Check if this should use a fallible operation as it
|
|
// pretended earlier, or change the return type to void.
|
|
mFrames.AppendElement(aFrame);
|
|
return true;
|
|
}
|
|
|
|
void nsTableRowGroupFrame::InvalidateFrame(uint32_t aDisplayItemKey,
|
|
bool aRebuildDisplayItems) {
|
|
nsIFrame::InvalidateFrame(aDisplayItemKey, aRebuildDisplayItems);
|
|
if (GetTableFrame()->IsBorderCollapse()) {
|
|
GetParent()->InvalidateFrameWithRect(InkOverflowRect() + GetPosition(),
|
|
aDisplayItemKey, false);
|
|
}
|
|
}
|
|
|
|
void nsTableRowGroupFrame::InvalidateFrameWithRect(const nsRect& aRect,
|
|
uint32_t aDisplayItemKey,
|
|
bool aRebuildDisplayItems) {
|
|
nsIFrame::InvalidateFrameWithRect(aRect, aDisplayItemKey,
|
|
aRebuildDisplayItems);
|
|
// 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,
|
|
false);
|
|
}
|