1/**
2 * Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 * (C) 1997 Torben Weis (weis@kde.org)
4 * (C) 1998 Waldo Bastian (bastian@kde.org)
5 * (C) 1999 Lars Knoll (knoll@kde.org)
6 * (C) 1999 Antti Koivisto (koivisto@kde.org)
7 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB. If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 */
24
25#include "config.h"
26#include "RenderTableRow.h"
27
28#include "Document.h"
29#include "HTMLNames.h"
30#include "HitTestResult.h"
31#include "PaintInfo.h"
32#include "RenderLayoutState.h"
33#include "RenderTableCell.h"
34#include "RenderTreeBuilder.h"
35#include "RenderView.h"
36#include "StyleInheritedData.h"
37#include <wtf/IsoMallocInlines.h>
38#include <wtf/StackStats.h>
39
40namespace WebCore {
41
42using namespace HTMLNames;
43
44WTF_MAKE_ISO_ALLOCATED_IMPL(RenderTableRow);
45
46RenderTableRow::RenderTableRow(Element& element, RenderStyle&& style)
47 : RenderBox(element, WTFMove(style), 0)
48 , m_rowIndex(unsetRowIndex)
49{
50 setInline(false);
51}
52
53RenderTableRow::RenderTableRow(Document& document, RenderStyle&& style)
54 : RenderBox(document, WTFMove(style), 0)
55 , m_rowIndex(unsetRowIndex)
56{
57 setInline(false);
58}
59
60void RenderTableRow::willBeRemovedFromTree()
61{
62 RenderBox::willBeRemovedFromTree();
63
64 section()->setNeedsCellRecalc();
65}
66
67static bool borderWidthChanged(const RenderStyle* oldStyle, const RenderStyle* newStyle)
68{
69 return oldStyle->borderLeftWidth() != newStyle->borderLeftWidth()
70 || oldStyle->borderTopWidth() != newStyle->borderTopWidth()
71 || oldStyle->borderRightWidth() != newStyle->borderRightWidth()
72 || oldStyle->borderBottomWidth() != newStyle->borderBottomWidth();
73}
74
75void RenderTableRow::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
76{
77 ASSERT(style().display() == DisplayType::TableRow);
78
79 RenderBox::styleDidChange(diff, oldStyle);
80 propagateStyleToAnonymousChildren(PropagateToAllChildren);
81
82 if (section() && oldStyle && style().logicalHeight() != oldStyle->logicalHeight())
83 section()->rowLogicalHeightChanged(rowIndex());
84
85 // If border was changed, notify table.
86 if (RenderTable* table = this->table()) {
87 if (oldStyle && oldStyle->border() != style().border())
88 table->invalidateCollapsedBorders();
89
90 if (oldStyle && diff == StyleDifference::Layout && needsLayout() && table->collapseBorders() && borderWidthChanged(oldStyle, &style())) {
91 // If the border width changes on a row, we need to make sure the cells in the row know to lay out again.
92 // This only happens when borders are collapsed, since they end up affecting the border sides of the cell
93 // itself.
94 for (RenderTableCell* cell = firstCell(); cell; cell = cell->nextCell())
95 cell->setChildNeedsLayout(MarkOnlyThis);
96 }
97 }
98}
99
100const BorderValue& RenderTableRow::borderAdjoiningStartCell(const RenderTableCell& cell) const
101{
102 ASSERT_UNUSED(cell, cell.isFirstOrLastCellInRow());
103 // FIXME: https://webkit.org/b/79272 - Add support for mixed directionality at the cell level.
104 return style().borderStart();
105}
106
107const BorderValue& RenderTableRow::borderAdjoiningEndCell(const RenderTableCell& cell) const
108{
109 ASSERT_UNUSED(cell, cell.isFirstOrLastCellInRow());
110 // FIXME: https://webkit.org/b/79272 - Add support for mixed directionality at the cell level.
111 return style().borderEnd();
112}
113
114void RenderTableRow::didInsertTableCell(RenderTableCell& child, RenderObject* beforeChild)
115{
116 // Generated content can result in us having a null section so make sure to null check our parent.
117 if (auto* section = this->section()) {
118 section->addCell(&child, this);
119 if (beforeChild || nextRow())
120 section->setNeedsCellRecalc();
121 }
122 if (auto* table = this->table())
123 table->invalidateCollapsedBorders();
124}
125
126void RenderTableRow::layout()
127{
128 StackStats::LayoutCheckPoint layoutCheckPoint;
129 ASSERT(needsLayout());
130
131 // Table rows do not add translation.
132 LayoutStateMaintainer statePusher(*this, LayoutSize(), hasTransform() || hasReflection() || style().isFlippedBlocksWritingMode());
133
134 auto* layoutState = view().frameView().layoutContext().layoutState();
135 bool paginated = layoutState->isPaginated();
136
137 for (RenderTableCell* cell = firstCell(); cell; cell = cell->nextCell()) {
138 if (!cell->needsLayout() && paginated && (layoutState->pageLogicalHeightChanged() || (layoutState->pageLogicalHeight() && layoutState->pageLogicalOffset(cell, cell->logicalTop()) != cell->pageLogicalOffset())))
139 cell->setChildNeedsLayout(MarkOnlyThis);
140
141 if (cell->needsLayout()) {
142 cell->computeAndSetBlockDirectionMargins(*table());
143 cell->layout();
144 }
145 }
146
147 clearOverflow();
148 addVisualEffectOverflow();
149 // We only ever need to repaint if our cells didn't, which menas that they didn't need
150 // layout, so we know that our bounds didn't change. This code is just making up for
151 // the fact that we did not repaint in setStyle() because we had a layout hint.
152 // We cannot call repaint() because our clippedOverflowRectForRepaint() is taken from the
153 // parent table, and being mid-layout, that is invalid. Instead, we repaint our cells.
154 if (selfNeedsLayout() && checkForRepaintDuringLayout()) {
155 for (RenderTableCell* cell = firstCell(); cell; cell = cell->nextCell())
156 cell->repaint();
157 }
158
159 // RenderTableSection::layoutRows will set our logical height and width later, so it calls updateLayerTransform().
160 clearNeedsLayout();
161}
162
163LayoutRect RenderTableRow::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const
164{
165 ASSERT(parent());
166 // Rows and cells are in the same coordinate space. We need to both compute our overflow rect (which
167 // will accommodate a row outline and any visual effects on the row itself), but we also need to add in
168 // the repaint rects of cells.
169 LayoutRect result = RenderBox::clippedOverflowRectForRepaint(repaintContainer);
170 for (RenderTableCell* cell = firstCell(); cell; cell = cell->nextCell()) {
171 // Even if a cell is a repaint container, it's the row that paints the background behind it.
172 // So we don't care if a cell is a repaintContainer here.
173 result.uniteIfNonZero(cell->clippedOverflowRectForRepaint(repaintContainer));
174 }
175 return result;
176}
177
178// Hit Testing
179bool RenderTableRow::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
180{
181 // Table rows cannot ever be hit tested. Effectively they do not exist.
182 // Just forward to our children always.
183 for (RenderTableCell* cell = lastCell(); cell; cell = cell->previousCell()) {
184 // FIXME: We have to skip over inline flows, since they can show up inside table rows
185 // at the moment (a demoted inline <form> for example). If we ever implement a
186 // table-specific hit-test method (which we should do for performance reasons anyway),
187 // then we can remove this check.
188 if (!cell->hasSelfPaintingLayer()) {
189 LayoutPoint cellPoint = flipForWritingModeForChild(cell, accumulatedOffset);
190 if (cell->nodeAtPoint(request, result, locationInContainer, cellPoint, action)) {
191 updateHitTestResult(result, locationInContainer.point() - toLayoutSize(cellPoint));
192 return true;
193 }
194 }
195 }
196
197 return false;
198}
199
200void RenderTableRow::paintOutlineForRowIfNeeded(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
201{
202 LayoutPoint adjustedPaintOffset = paintOffset + location();
203 PaintPhase paintPhase = paintInfo.phase;
204 if ((paintPhase == PaintPhase::Outline || paintPhase == PaintPhase::SelfOutline) && style().visibility() == Visibility::Visible)
205 paintOutline(paintInfo, LayoutRect(adjustedPaintOffset, size()));
206}
207
208void RenderTableRow::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
209{
210 ASSERT(hasSelfPaintingLayer());
211
212 paintOutlineForRowIfNeeded(paintInfo, paintOffset);
213 for (RenderTableCell* cell = firstCell(); cell; cell = cell->nextCell()) {
214 // Paint the row background behind the cell.
215 if (paintInfo.phase == PaintPhase::BlockBackground || paintInfo.phase == PaintPhase::ChildBlockBackground)
216 cell->paintBackgroundsBehindCell(paintInfo, paintOffset, this);
217 if (!cell->hasSelfPaintingLayer())
218 cell->paint(paintInfo, paintOffset);
219 }
220}
221
222void RenderTableRow::imageChanged(WrappedImagePtr, const IntRect*)
223{
224 // FIXME: Examine cells and repaint only the rect the image paints in.
225 repaint();
226}
227
228RenderPtr<RenderTableRow> RenderTableRow::createTableRowWithStyle(Document& document, const RenderStyle& style)
229{
230 auto row = createRenderer<RenderTableRow>(document, RenderStyle::createAnonymousStyleWithDisplay(style, DisplayType::TableRow));
231 row->initializeStyle();
232 return row;
233}
234
235RenderPtr<RenderTableRow> RenderTableRow::createAnonymousWithParentRenderer(const RenderTableSection& parent)
236{
237 return RenderTableRow::createTableRowWithStyle(parent.document(), parent.style());
238}
239
240} // namespace WebCore
241