| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "RenderInline.h" |
| |
| #include "Chrome.h" |
| #include "FloatQuad.h" |
| #include "FrameSelection.h" |
| #include "GraphicsContext.h" |
| #include "HitTestResult.h" |
| #include "InlineElementBox.h" |
| #include "InlineTextBox.h" |
| #include "LayoutState.h" |
| #include "RenderBlock.h" |
| #include "RenderChildIterator.h" |
| #include "RenderFragmentedFlow.h" |
| #include "RenderFullScreen.h" |
| #include "RenderGeometryMap.h" |
| #include "RenderIterator.h" |
| #include "RenderLayer.h" |
| #include "RenderLineBreak.h" |
| #include "RenderListMarker.h" |
| #include "RenderTable.h" |
| #include "RenderTheme.h" |
| #include "RenderTreeBuilder.h" |
| #include "RenderView.h" |
| #include "Settings.h" |
| #include "StyleInheritedData.h" |
| #include "TransformState.h" |
| #include "VisiblePosition.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| #if ENABLE(DASHBOARD_SUPPORT) |
| #include "Frame.h" |
| #endif |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(RenderInline); |
| |
| RenderInline::RenderInline(Element& element, RenderStyle&& style) |
| : RenderBoxModelObject(element, WTFMove(style), RenderInlineFlag) |
| { |
| setChildrenInline(true); |
| } |
| |
| RenderInline::RenderInline(Document& document, RenderStyle&& style) |
| : RenderBoxModelObject(document, WTFMove(style), RenderInlineFlag) |
| { |
| setChildrenInline(true); |
| } |
| |
| void RenderInline::willBeDestroyed() |
| { |
| #if !ASSERT_DISABLED |
| // Make sure we do not retain "this" in the continuation outline table map of our containing blocks. |
| if (parent() && style().visibility() == VISIBLE && hasOutline()) { |
| bool containingBlockPaintsContinuationOutline = continuation() || isContinuation(); |
| if (containingBlockPaintsContinuationOutline) { |
| if (RenderBlock* cb = containingBlock()) { |
| if (RenderBlock* cbCb = cb->containingBlock()) |
| ASSERT(!cbCb->paintsContinuationOutline(this)); |
| } |
| } |
| } |
| #endif |
| |
| if (!renderTreeBeingDestroyed()) { |
| if (firstLineBox()) { |
| // We can't wait for RenderBoxModelObject::destroy to clear the selection, |
| // because by then we will have nuked the line boxes. |
| if (isSelectionBorder()) |
| frame().selection().setNeedsSelectionUpdate(); |
| |
| // If line boxes are contained inside a root, that means we're an inline. |
| // In that case, we need to remove all the line boxes so that the parent |
| // lines aren't pointing to deleted children. If the first line box does |
| // not have a parent that means they are either already disconnected or |
| // root lines that can just be destroyed without disconnecting. |
| if (firstLineBox()->parent()) { |
| for (auto* box = firstLineBox(); box; box = box->nextLineBox()) |
| box->removeFromParent(); |
| } |
| } else if (parent()) |
| parent()->dirtyLinesFromChangedChild(*this); |
| } |
| |
| m_lineBoxes.deleteLineBoxes(); |
| |
| RenderBoxModelObject::willBeDestroyed(); |
| } |
| |
| void RenderInline::updateFromStyle() |
| { |
| RenderBoxModelObject::updateFromStyle(); |
| |
| // FIXME: Support transforms and reflections on inline flows someday. |
| setHasTransformRelatedProperty(false); |
| setHasReflection(false); |
| } |
| |
| static RenderElement* inFlowPositionedInlineAncestor(RenderElement* p) |
| { |
| while (p && p->isRenderInline()) { |
| if (p->isInFlowPositioned()) |
| return p; |
| p = p->parent(); |
| } |
| return nullptr; |
| } |
| |
| static void updateStyleOfAnonymousBlockContinuations(const RenderBlock& block, const RenderStyle* newStyle, const RenderStyle* oldStyle) |
| { |
| // If any descendant blocks exist then they will be in the next anonymous block and its siblings. |
| for (RenderBox* box = block.nextSiblingBox(); box && box->isAnonymousBlock(); box = box->nextSiblingBox()) { |
| if (box->style().position() == newStyle->position()) |
| continue; |
| |
| if (!is<RenderBlock>(*box)) |
| continue; |
| |
| RenderBlock& block = downcast<RenderBlock>(*box); |
| if (!block.isContinuation()) |
| continue; |
| |
| // If we are no longer in-flow positioned but our descendant block(s) still have an in-flow positioned ancestor then |
| // their containing anonymous block should keep its in-flow positioning. |
| RenderInline* continuation = block.inlineContinuation(); |
| if (oldStyle->hasInFlowPosition() && inFlowPositionedInlineAncestor(continuation)) |
| continue; |
| auto blockStyle = RenderStyle::createAnonymousStyleWithDisplay(block.style(), BLOCK); |
| blockStyle.setPosition(newStyle->position()); |
| block.setStyle(WTFMove(blockStyle)); |
| } |
| } |
| |
| void RenderInline::styleWillChange(StyleDifference diff, const RenderStyle& newStyle) |
| { |
| RenderBoxModelObject::styleWillChange(diff, newStyle); |
| // RenderInlines forward their absolute positioned descendants to their (non-anonymous) containing block. |
| // Check if this non-anonymous containing block can hold the absolute positioned elements when the inline is no longer positioned. |
| if (canContainAbsolutelyPositionedObjects() && newStyle.position() == StaticPosition) { |
| auto* container = containingBlockForAbsolutePosition(); |
| if (container && !container->canContainAbsolutelyPositionedObjects()) |
| container->removePositionedObjects(nullptr, NewContainingBlock); |
| } |
| } |
| |
| void RenderInline::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) |
| { |
| RenderBoxModelObject::styleDidChange(diff, oldStyle); |
| |
| // Ensure that all of the split inlines pick up the new style. We |
| // only do this if we're an inline, since we don't want to propagate |
| // a block's style to the other inlines. |
| // e.g., <font>foo <h4>goo</h4> moo</font>. The <font> inlines before |
| // and after the block share the same style, but the block doesn't |
| // need to pass its style on to anyone else. |
| auto& newStyle = style(); |
| RenderInline* continuation = inlineContinuation(); |
| if (continuation && !isContinuation()) { |
| for (RenderInline* currCont = continuation; currCont; currCont = currCont->inlineContinuation()) |
| currCont->setStyle(RenderStyle::clone(newStyle)); |
| // If an inline's in-flow positioning has changed and it is part of an active continuation as a descendant of an anonymous containing block, |
| // then any descendant blocks will need to change their in-flow positioning accordingly. |
| // Do this by updating the position of the descendant blocks' containing anonymous blocks - there may be more than one. |
| if (containingBlock()->isAnonymousBlock() && oldStyle && newStyle.position() != oldStyle->position() && (newStyle.hasInFlowPosition() || oldStyle->hasInFlowPosition())) |
| updateStyleOfAnonymousBlockContinuations(*containingBlock(), &newStyle, oldStyle); |
| } |
| |
| if (!alwaysCreateLineBoxes()) { |
| bool alwaysCreateLineBoxes = hasSelfPaintingLayer() || hasVisibleBoxDecorations() || newStyle.hasBorder() || newStyle.hasPadding() || newStyle.hasMargin() || hasOutline(); |
| if (oldStyle && alwaysCreateLineBoxes) { |
| dirtyLineBoxes(false); |
| setNeedsLayout(); |
| } |
| setRenderInlineAlwaysCreatesLineBoxes(alwaysCreateLineBoxes); |
| } |
| } |
| |
| void RenderInline::updateAlwaysCreateLineBoxes(bool fullLayout) |
| { |
| // Once we have been tainted once, just assume it will happen again. This way effects like hover highlighting that change the |
| // background color will only cause a layout on the first rollover. |
| if (alwaysCreateLineBoxes()) |
| return; |
| |
| auto* parentStyle = &parent()->style(); |
| RenderInline* parentRenderInline = is<RenderInline>(*parent()) ? downcast<RenderInline>(parent()) : nullptr; |
| bool checkFonts = document().inNoQuirksMode(); |
| bool alwaysCreateLineBoxes = (parentRenderInline && parentRenderInline->alwaysCreateLineBoxes()) |
| || (parentRenderInline && parentStyle->verticalAlign() != BASELINE) |
| || style().verticalAlign() != BASELINE |
| || style().textEmphasisMark() != TextEmphasisMarkNone |
| || (checkFonts && (!parentStyle->fontCascade().fontMetrics().hasIdenticalAscentDescentAndLineGap(style().fontCascade().fontMetrics()) |
| || parentStyle->lineHeight() != style().lineHeight())); |
| |
| if (!alwaysCreateLineBoxes && checkFonts && view().usesFirstLineRules()) { |
| // Have to check the first line style as well. |
| parentStyle = &parent()->firstLineStyle(); |
| auto& childStyle = firstLineStyle(); |
| alwaysCreateLineBoxes = !parentStyle->fontCascade().fontMetrics().hasIdenticalAscentDescentAndLineGap(childStyle.fontCascade().fontMetrics()) |
| || childStyle.verticalAlign() != BASELINE |
| || parentStyle->lineHeight() != childStyle.lineHeight(); |
| } |
| |
| if (alwaysCreateLineBoxes) { |
| if (!fullLayout) |
| dirtyLineBoxes(false); |
| setAlwaysCreateLineBoxes(); |
| } |
| } |
| |
| LayoutRect RenderInline::localCaretRect(InlineBox* inlineBox, unsigned, LayoutUnit* extraWidthToEndOfLine) |
| { |
| if (firstChild()) { |
| // This condition is possible if the RenderInline is at an editing boundary, |
| // i.e. the VisiblePosition is: |
| // <RenderInline editingBoundary=true>|<RenderText> </RenderText></RenderInline> |
| // FIXME: need to figure out how to make this return a valid rect, note that |
| // there are no line boxes created in the above case. |
| return LayoutRect(); |
| } |
| |
| ASSERT_UNUSED(inlineBox, !inlineBox); |
| |
| if (extraWidthToEndOfLine) |
| *extraWidthToEndOfLine = 0; |
| |
| LayoutRect caretRect = localCaretRectForEmptyElement(horizontalBorderAndPaddingExtent(), 0); |
| |
| if (InlineBox* firstBox = firstLineBox()) |
| caretRect.moveBy(LayoutPoint(firstBox->topLeft())); |
| |
| return caretRect; |
| } |
| |
| void RenderInline::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| m_lineBoxes.paint(this, paintInfo, paintOffset); |
| } |
| |
| template<typename GeneratorContext> |
| void RenderInline::generateLineBoxRects(GeneratorContext& context) const |
| { |
| if (!alwaysCreateLineBoxes()) |
| generateCulledLineBoxRects(context, this); |
| else if (InlineFlowBox* curr = firstLineBox()) { |
| for (; curr; curr = curr->nextLineBox()) |
| context.addRect(FloatRect(curr->topLeft(), curr->size())); |
| } else |
| context.addRect(FloatRect()); |
| } |
| |
| template<typename GeneratorContext> |
| void RenderInline::generateCulledLineBoxRects(GeneratorContext& context, const RenderInline* container) const |
| { |
| if (!culledInlineFirstLineBox()) { |
| context.addRect(FloatRect()); |
| return; |
| } |
| |
| bool isHorizontal = style().isHorizontalWritingMode(); |
| |
| for (auto& current : childrenOfType<RenderObject>(*this)) { |
| if (current.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| |
| // We want to get the margin box in the inline direction, and then use our font ascent/descent in the block |
| // direction (aligned to the root box's baseline). |
| if (is<RenderBox>(current)) { |
| auto& renderBox = downcast<RenderBox>(current); |
| if (renderBox.inlineBoxWrapper()) { |
| const RootInlineBox& rootBox = renderBox.inlineBoxWrapper()->root(); |
| const RenderStyle& containerStyle = rootBox.isFirstLine() ? container->firstLineStyle() : container->style(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.lineStyle().fontCascade().fontMetrics().ascent() - containerStyle.fontCascade().fontMetrics().ascent()); |
| int logicalHeight = containerStyle.fontCascade().fontMetrics().height(); |
| if (isHorizontal) |
| context.addRect(FloatRect(renderBox.inlineBoxWrapper()->x() - renderBox.marginLeft(), logicalTop, renderBox.width() + renderBox.horizontalMarginExtent(), logicalHeight)); |
| else |
| context.addRect(FloatRect(logicalTop, renderBox.inlineBoxWrapper()->y() - renderBox.marginTop(), logicalHeight, renderBox.height() + renderBox.verticalMarginExtent())); |
| } |
| } else if (is<RenderInline>(current)) { |
| // If the child doesn't need line boxes either, then we can recur. |
| auto& renderInline = downcast<RenderInline>(current); |
| if (!renderInline.alwaysCreateLineBoxes()) |
| renderInline.generateCulledLineBoxRects(context, container); |
| else { |
| for (InlineFlowBox* childLine = renderInline.firstLineBox(); childLine; childLine = childLine->nextLineBox()) { |
| const RootInlineBox& rootBox = childLine->root(); |
| const RenderStyle& containerStyle = rootBox.isFirstLine() ? container->firstLineStyle() : container->style(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.lineStyle().fontCascade().fontMetrics().ascent() - containerStyle.fontCascade().fontMetrics().ascent()); |
| int logicalHeight = containerStyle.fontMetrics().height(); |
| if (isHorizontal) { |
| context.addRect(FloatRect(childLine->x() - childLine->marginLogicalLeft(), |
| logicalTop, |
| childLine->logicalWidth() + childLine->marginLogicalLeft() + childLine->marginLogicalRight(), |
| logicalHeight)); |
| } else { |
| context.addRect(FloatRect(logicalTop, |
| childLine->y() - childLine->marginLogicalLeft(), |
| logicalHeight, |
| childLine->logicalWidth() + childLine->marginLogicalLeft() + childLine->marginLogicalRight())); |
| } |
| } |
| } |
| } else if (is<RenderText>(current)) { |
| auto& currText = downcast<RenderText>(current); |
| for (InlineTextBox* childText = currText.firstTextBox(); childText; childText = childText->nextTextBox()) { |
| const RootInlineBox& rootBox = childText->root(); |
| const RenderStyle& containerStyle = rootBox.isFirstLine() ? container->firstLineStyle() : container->style(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.lineStyle().fontCascade().fontMetrics().ascent() - containerStyle.fontCascade().fontMetrics().ascent()); |
| int logicalHeight = containerStyle.fontCascade().fontMetrics().height(); |
| if (isHorizontal) |
| context.addRect(FloatRect(childText->x(), logicalTop, childText->logicalWidth(), logicalHeight)); |
| else |
| context.addRect(FloatRect(logicalTop, childText->y(), logicalHeight, childText->logicalWidth())); |
| } |
| } else if (is<RenderLineBreak>(current)) { |
| if (auto* inlineBox = downcast<RenderLineBreak>(current).inlineBoxWrapper()) { |
| // FIXME: This could use a helper to share these with text path. |
| const RootInlineBox& rootBox = inlineBox->root(); |
| const RenderStyle& containerStyle = rootBox.isFirstLine() ? container->firstLineStyle() : container->style(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.lineStyle().fontCascade().fontMetrics().ascent() - containerStyle.fontCascade().fontMetrics().ascent()); |
| int logicalHeight = containerStyle.fontMetrics().height(); |
| if (isHorizontal) |
| context.addRect(FloatRect(inlineBox->x(), logicalTop, inlineBox->logicalWidth(), logicalHeight)); |
| else |
| context.addRect(FloatRect(logicalTop, inlineBox->y(), logicalHeight, inlineBox->logicalWidth())); |
| } |
| } |
| } |
| } |
| |
| namespace { |
| |
| class AbsoluteRectsGeneratorContext { |
| public: |
| AbsoluteRectsGeneratorContext(Vector<LayoutRect>& rects, const LayoutPoint& accumulatedOffset) |
| : m_rects(rects) |
| , m_accumulatedOffset(accumulatedOffset) { } |
| |
| void addRect(const FloatRect& rect) |
| { |
| LayoutRect adjustedRect = LayoutRect(rect); |
| adjustedRect.moveBy(m_accumulatedOffset); |
| m_rects.append(adjustedRect); |
| } |
| private: |
| Vector<LayoutRect>& m_rects; |
| const LayoutPoint& m_accumulatedOffset; |
| }; |
| |
| } // unnamed namespace |
| |
| void RenderInline::absoluteRects(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) const |
| { |
| Vector<LayoutRect> lineboxRects; |
| AbsoluteRectsGeneratorContext context(lineboxRects, accumulatedOffset); |
| generateLineBoxRects(context); |
| for (const auto& rect : lineboxRects) |
| rects.append(snappedIntRect(rect)); |
| |
| if (RenderBoxModelObject* continuation = this->continuation()) { |
| if (is<RenderBox>(*continuation)) { |
| auto& box = downcast<RenderBox>(*continuation); |
| continuation->absoluteRects(rects, toLayoutPoint(accumulatedOffset - containingBlock()->location() + box.locationOffset())); |
| } else |
| continuation->absoluteRects(rects, toLayoutPoint(accumulatedOffset - containingBlock()->location())); |
| } |
| } |
| |
| |
| namespace { |
| |
| class AbsoluteQuadsGeneratorContext { |
| public: |
| AbsoluteQuadsGeneratorContext(const RenderInline* renderer, Vector<FloatQuad>& quads) |
| : m_quads(quads) |
| , m_geometryMap() |
| { |
| m_geometryMap.pushMappingsToAncestor(renderer, nullptr); |
| } |
| |
| void addRect(const FloatRect& rect) |
| { |
| m_quads.append(m_geometryMap.absoluteRect(rect)); |
| } |
| private: |
| Vector<FloatQuad>& m_quads; |
| RenderGeometryMap m_geometryMap; |
| }; |
| |
| } // unnamed namespace |
| |
| void RenderInline::absoluteQuads(Vector<FloatQuad>& quads, bool* wasFixed) const |
| { |
| AbsoluteQuadsGeneratorContext context(this, quads); |
| generateLineBoxRects(context); |
| |
| if (RenderBoxModelObject* continuation = this->continuation()) |
| continuation->absoluteQuads(quads, wasFixed); |
| } |
| |
| #if PLATFORM(IOS) |
| void RenderInline::absoluteQuadsForSelection(Vector<FloatQuad>& quads) const |
| { |
| AbsoluteQuadsGeneratorContext context(this, quads); |
| generateLineBoxRects(context); |
| } |
| #endif |
| |
| LayoutUnit RenderInline::offsetLeft() const |
| { |
| LayoutPoint topLeft; |
| if (InlineBox* firstBox = firstLineBoxIncludingCulling()) |
| topLeft = flooredLayoutPoint(firstBox->topLeft()); |
| return adjustedPositionRelativeToOffsetParent(topLeft).x(); |
| } |
| |
| LayoutUnit RenderInline::offsetTop() const |
| { |
| LayoutPoint topLeft; |
| if (InlineBox* firstBox = firstLineBoxIncludingCulling()) |
| topLeft = flooredLayoutPoint(firstBox->topLeft()); |
| return adjustedPositionRelativeToOffsetParent(topLeft).y(); |
| } |
| |
| static LayoutUnit computeMargin(const RenderInline* renderer, const Length& margin) |
| { |
| if (margin.isAuto()) |
| return 0; |
| if (margin.isFixed()) |
| return margin.value(); |
| if (margin.isPercentOrCalculated()) |
| return minimumValueForLength(margin, std::max<LayoutUnit>(0, renderer->containingBlock()->availableLogicalWidth())); |
| return 0; |
| } |
| |
| LayoutUnit RenderInline::marginLeft() const |
| { |
| return computeMargin(this, style().marginLeft()); |
| } |
| |
| LayoutUnit RenderInline::marginRight() const |
| { |
| return computeMargin(this, style().marginRight()); |
| } |
| |
| LayoutUnit RenderInline::marginTop() const |
| { |
| return computeMargin(this, style().marginTop()); |
| } |
| |
| LayoutUnit RenderInline::marginBottom() const |
| { |
| return computeMargin(this, style().marginBottom()); |
| } |
| |
| LayoutUnit RenderInline::marginStart(const RenderStyle* otherStyle) const |
| { |
| return computeMargin(this, style().marginStartUsing(otherStyle ? otherStyle : &style())); |
| } |
| |
| LayoutUnit RenderInline::marginEnd(const RenderStyle* otherStyle) const |
| { |
| return computeMargin(this, style().marginEndUsing(otherStyle ? otherStyle : &style())); |
| } |
| |
| LayoutUnit RenderInline::marginBefore(const RenderStyle* otherStyle) const |
| { |
| return computeMargin(this, style().marginBeforeUsing(otherStyle ? otherStyle : &style())); |
| } |
| |
| LayoutUnit RenderInline::marginAfter(const RenderStyle* otherStyle) const |
| { |
| return computeMargin(this, style().marginAfterUsing(otherStyle ? otherStyle : &style())); |
| } |
| |
| const char* RenderInline::renderName() const |
| { |
| if (isRelativelyPositioned()) |
| return "RenderInline (relative positioned)"; |
| if (isStickilyPositioned()) |
| return "RenderInline (sticky positioned)"; |
| // FIXME: Temporary hack while the new generated content system is being implemented. |
| if (isPseudoElement()) |
| return "RenderInline (generated)"; |
| if (isAnonymous()) |
| return "RenderInline (generated)"; |
| return "RenderInline"; |
| } |
| |
| bool RenderInline::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, |
| const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction) |
| { |
| return m_lineBoxes.hitTest(this, request, result, locationInContainer, accumulatedOffset, hitTestAction); |
| } |
| |
| namespace { |
| |
| class HitTestCulledInlinesGeneratorContext { |
| public: |
| HitTestCulledInlinesGeneratorContext(Region& region, const HitTestLocation& location) |
| : m_intersected(false) |
| , m_region(region) |
| , m_location(location) |
| { } |
| |
| void addRect(const FloatRect& rect) |
| { |
| m_intersected = m_intersected || m_location.intersects(rect); |
| m_region.unite(enclosingIntRect(rect)); |
| } |
| |
| bool intersected() const { return m_intersected; } |
| |
| private: |
| bool m_intersected; |
| Region& m_region; |
| const HitTestLocation& m_location; |
| }; |
| |
| } // unnamed namespace |
| |
| bool RenderInline::hitTestCulledInline(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) |
| { |
| ASSERT(result.isRectBasedTest() && !alwaysCreateLineBoxes()); |
| if (!visibleToHitTesting()) |
| return false; |
| |
| HitTestLocation tmpLocation(locationInContainer, -toLayoutSize(accumulatedOffset)); |
| |
| Region regionResult; |
| HitTestCulledInlinesGeneratorContext context(regionResult, tmpLocation); |
| generateCulledLineBoxRects(context, this); |
| |
| if (context.intersected()) { |
| updateHitTestResult(result, tmpLocation.point()); |
| // We cannot use addNodeToListBasedTestResult to determine if we fully enclose the hit-test area |
| // because it can only handle rectangular targets. |
| result.addNodeToListBasedTestResult(element(), request, locationInContainer); |
| return regionResult.contains(tmpLocation.boundingBox()); |
| } |
| return false; |
| } |
| |
| VisiblePosition RenderInline::positionForPoint(const LayoutPoint& point, const RenderFragmentContainer* fragment) |
| { |
| // FIXME: Does not deal with relative or sticky positioned inlines (should it?) |
| RenderBlock& containingBlock = *this->containingBlock(); |
| if (firstLineBox()) { |
| // This inline actually has a line box. We must have clicked in the border/padding of one of these boxes. We |
| // should try to find a result by asking our containing block. |
| return containingBlock.positionForPoint(point, fragment); |
| } |
| |
| // Translate the coords from the pre-anonymous block to the post-anonymous block. |
| LayoutPoint parentBlockPoint = containingBlock.location() + point; |
| RenderBoxModelObject* continuation = this->continuation(); |
| while (continuation) { |
| RenderBlock* currentBlock = continuation->isInline() ? continuation->containingBlock() : downcast<RenderBlock>(continuation); |
| if (continuation->isInline() || continuation->firstChild()) |
| return continuation->positionForPoint(parentBlockPoint - currentBlock->locationOffset(), fragment); |
| continuation = continuation->inlineContinuation(); |
| } |
| |
| return RenderBoxModelObject::positionForPoint(point, fragment); |
| } |
| |
| namespace { |
| |
| class LinesBoundingBoxGeneratorContext { |
| public: |
| LinesBoundingBoxGeneratorContext(FloatRect& rect) : m_rect(rect) { } |
| |
| void addRect(const FloatRect& rect) |
| { |
| m_rect.uniteIfNonZero(rect); |
| } |
| private: |
| FloatRect& m_rect; |
| }; |
| |
| } // unnamed namespace |
| |
| IntRect RenderInline::linesBoundingBox() const |
| { |
| if (!alwaysCreateLineBoxes()) { |
| ASSERT(!firstLineBox()); |
| FloatRect floatResult; |
| LinesBoundingBoxGeneratorContext context(floatResult); |
| generateCulledLineBoxRects(context, this); |
| return enclosingIntRect(floatResult); |
| } |
| |
| IntRect result; |
| |
| // See <rdar://problem/5289721>, for an unknown reason the linked list here is sometimes inconsistent, first is non-zero and last is zero. We have been |
| // unable to reproduce this at all (and consequently unable to figure ot why this is happening). The assert will hopefully catch the problem in debug |
| // builds and help us someday figure out why. We also put in a redundant check of lastLineBox() to avoid the crash for now. |
| ASSERT(!firstLineBox() == !lastLineBox()); // Either both are null or both exist. |
| if (firstLineBox() && lastLineBox()) { |
| // Return the width of the minimal left side and the maximal right side. |
| float logicalLeftSide = 0; |
| float logicalRightSide = 0; |
| for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) { |
| if (curr == firstLineBox() || curr->logicalLeft() < logicalLeftSide) |
| logicalLeftSide = curr->logicalLeft(); |
| if (curr == firstLineBox() || curr->logicalRight() > logicalRightSide) |
| logicalRightSide = curr->logicalRight(); |
| } |
| |
| bool isHorizontal = style().isHorizontalWritingMode(); |
| |
| float x = isHorizontal ? logicalLeftSide : firstLineBox()->x(); |
| float y = isHorizontal ? firstLineBox()->y() : logicalLeftSide; |
| float width = isHorizontal ? logicalRightSide - logicalLeftSide : lastLineBox()->logicalBottom() - x; |
| float height = isHorizontal ? lastLineBox()->logicalBottom() - y : logicalRightSide - logicalLeftSide; |
| result = enclosingIntRect(FloatRect(x, y, width, height)); |
| } |
| |
| return result; |
| } |
| |
| InlineBox* RenderInline::culledInlineFirstLineBox() const |
| { |
| for (auto& current : childrenOfType<RenderObject>(*this)) { |
| if (current.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| |
| // We want to get the margin box in the inline direction, and then use our font ascent/descent in the block |
| // direction (aligned to the root box's baseline). |
| if (is<RenderBox>(current)) { |
| auto& renderBox = downcast<RenderBox>(current); |
| if (renderBox.inlineBoxWrapper()) |
| return renderBox.inlineBoxWrapper(); |
| } else if (is<RenderLineBreak>(current)) { |
| auto& renderBR = downcast<RenderLineBreak>(current); |
| if (renderBR.inlineBoxWrapper()) |
| return renderBR.inlineBoxWrapper(); |
| } else if (is<RenderInline>(current)) { |
| auto& renderInline = downcast<RenderInline>(current); |
| if (InlineBox* result = renderInline.firstLineBoxIncludingCulling()) |
| return result; |
| } else if (is<RenderText>(current)) { |
| auto& renderText = downcast<RenderText>(current); |
| if (renderText.firstTextBox()) |
| return renderText.firstTextBox(); |
| } |
| } |
| return nullptr; |
| } |
| |
| InlineBox* RenderInline::culledInlineLastLineBox() const |
| { |
| for (RenderObject* current = lastChild(); current; current = current->previousSibling()) { |
| if (current->isFloatingOrOutOfFlowPositioned()) |
| continue; |
| |
| // We want to get the margin box in the inline direction, and then use our font ascent/descent in the block |
| // direction (aligned to the root box's baseline). |
| if (is<RenderBox>(*current)) { |
| const auto& renderBox = downcast<RenderBox>(*current); |
| if (renderBox.inlineBoxWrapper()) |
| return renderBox.inlineBoxWrapper(); |
| } else if (is<RenderLineBreak>(*current)) { |
| RenderLineBreak& renderBR = downcast<RenderLineBreak>(*current); |
| if (renderBR.inlineBoxWrapper()) |
| return renderBR.inlineBoxWrapper(); |
| } else if (is<RenderInline>(*current)) { |
| RenderInline& renderInline = downcast<RenderInline>(*current); |
| if (InlineBox* result = renderInline.lastLineBoxIncludingCulling()) |
| return result; |
| } else if (is<RenderText>(*current)) { |
| RenderText& renderText = downcast<RenderText>(*current); |
| if (renderText.lastTextBox()) |
| return renderText.lastTextBox(); |
| } |
| } |
| return nullptr; |
| } |
| |
| LayoutRect RenderInline::culledInlineVisualOverflowBoundingBox() const |
| { |
| FloatRect floatResult; |
| LinesBoundingBoxGeneratorContext context(floatResult); |
| generateCulledLineBoxRects(context, this); |
| LayoutRect result(enclosingLayoutRect(floatResult)); |
| bool isHorizontal = style().isHorizontalWritingMode(); |
| for (auto& current : childrenOfType<RenderObject>(*this)) { |
| if (current.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| |
| // For overflow we just have to propagate by hand and recompute it all. |
| if (is<RenderBox>(current)) { |
| auto& renderBox = downcast<RenderBox>(current); |
| if (!renderBox.hasSelfPaintingLayer() && renderBox.inlineBoxWrapper()) { |
| LayoutRect logicalRect = renderBox.logicalVisualOverflowRectForPropagation(&style()); |
| if (isHorizontal) { |
| logicalRect.moveBy(renderBox.location()); |
| result.uniteIfNonZero(logicalRect); |
| } else { |
| logicalRect.moveBy(renderBox.location()); |
| result.uniteIfNonZero(logicalRect.transposedRect()); |
| } |
| } |
| } else if (is<RenderInline>(current)) { |
| // If the child doesn't need line boxes either, then we can recur. |
| auto& renderInline = downcast<RenderInline>(current); |
| if (!renderInline.alwaysCreateLineBoxes()) |
| result.uniteIfNonZero(renderInline.culledInlineVisualOverflowBoundingBox()); |
| else if (!renderInline.hasSelfPaintingLayer()) |
| result.uniteIfNonZero(renderInline.linesVisualOverflowBoundingBox()); |
| } else if (is<RenderText>(current)) { |
| // FIXME; Overflow from text boxes is lost. We will need to cache this information in |
| // InlineTextBoxes. |
| auto& renderText = downcast<RenderText>(current); |
| result.uniteIfNonZero(renderText.linesVisualOverflowBoundingBox()); |
| } |
| } |
| return result; |
| } |
| |
| LayoutRect RenderInline::linesVisualOverflowBoundingBox() const |
| { |
| if (!alwaysCreateLineBoxes()) |
| return culledInlineVisualOverflowBoundingBox(); |
| |
| if (!firstLineBox() || !lastLineBox()) |
| return LayoutRect(); |
| |
| // Return the width of the minimal left side and the maximal right side. |
| LayoutUnit logicalLeftSide = LayoutUnit::max(); |
| LayoutUnit logicalRightSide = LayoutUnit::min(); |
| for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) { |
| logicalLeftSide = std::min(logicalLeftSide, curr->logicalLeftVisualOverflow()); |
| logicalRightSide = std::max(logicalRightSide, curr->logicalRightVisualOverflow()); |
| } |
| |
| const RootInlineBox& firstRootBox = firstLineBox()->root(); |
| const RootInlineBox& lastRootBox = lastLineBox()->root(); |
| |
| LayoutUnit logicalTop = firstLineBox()->logicalTopVisualOverflow(firstRootBox.lineTop()); |
| LayoutUnit logicalWidth = logicalRightSide - logicalLeftSide; |
| LayoutUnit logicalHeight = lastLineBox()->logicalBottomVisualOverflow(lastRootBox.lineBottom()) - logicalTop; |
| |
| LayoutRect rect(logicalLeftSide, logicalTop, logicalWidth, logicalHeight); |
| if (!style().isHorizontalWritingMode()) |
| rect = rect.transposedRect(); |
| return rect; |
| } |
| |
| LayoutRect RenderInline::linesVisualOverflowBoundingBoxInFragment(const RenderFragmentContainer* fragment) const |
| { |
| ASSERT(alwaysCreateLineBoxes()); |
| ASSERT(fragment); |
| |
| if (!firstLineBox() || !lastLineBox()) |
| return LayoutRect(); |
| |
| // Return the width of the minimal left side and the maximal right side. |
| LayoutUnit logicalLeftSide = LayoutUnit::max(); |
| LayoutUnit logicalRightSide = LayoutUnit::min(); |
| LayoutUnit logicalTop; |
| LayoutUnit logicalHeight; |
| InlineFlowBox* lastInlineInFragment = 0; |
| for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) { |
| const RootInlineBox& root = curr->root(); |
| if (root.containingFragment() != fragment) { |
| if (lastInlineInFragment) |
| break; |
| continue; |
| } |
| |
| if (!lastInlineInFragment) |
| logicalTop = curr->logicalTopVisualOverflow(root.lineTop()); |
| |
| lastInlineInFragment = curr; |
| |
| logicalLeftSide = std::min(logicalLeftSide, curr->logicalLeftVisualOverflow()); |
| logicalRightSide = std::max(logicalRightSide, curr->logicalRightVisualOverflow()); |
| } |
| |
| if (!lastInlineInFragment) |
| return LayoutRect(); |
| |
| logicalHeight = lastInlineInFragment->logicalBottomVisualOverflow(lastInlineInFragment->root().lineBottom()) - logicalTop; |
| |
| LayoutUnit logicalWidth = logicalRightSide - logicalLeftSide; |
| |
| LayoutRect rect(logicalLeftSide, logicalTop, logicalWidth, logicalHeight); |
| if (!style().isHorizontalWritingMode()) |
| rect = rect.transposedRect(); |
| return rect; |
| } |
| |
| LayoutRect RenderInline::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const |
| { |
| // Only first-letter renderers are allowed in here during layout. They mutate the tree triggering repaints. |
| ASSERT(!view().frameView().layoutContext().isPaintOffsetCacheEnabled() || style().styleType() == FIRST_LETTER || hasSelfPaintingLayer()); |
| |
| if (!firstLineBoxIncludingCulling() && !continuation()) |
| return LayoutRect(); |
| |
| LayoutRect repaintRect(linesVisualOverflowBoundingBox()); |
| bool hitRepaintContainer = false; |
| |
| // We need to add in the in-flow position offsets of any inlines (including us) up to our |
| // containing block. |
| RenderBlock* containingBlock = this->containingBlock(); |
| for (const RenderElement* inlineFlow = this; is<RenderInline>(inlineFlow) && inlineFlow != containingBlock; |
| inlineFlow = inlineFlow->parent()) { |
| if (inlineFlow == repaintContainer) { |
| hitRepaintContainer = true; |
| break; |
| } |
| if (inlineFlow->style().hasInFlowPosition() && inlineFlow->hasLayer()) |
| repaintRect.move(downcast<RenderInline>(*inlineFlow).layer()->offsetForInFlowPosition()); |
| } |
| |
| LayoutUnit outlineSize = style().outlineSize(); |
| repaintRect.inflate(outlineSize); |
| |
| if (hitRepaintContainer || !containingBlock) |
| return repaintRect; |
| |
| if (containingBlock->hasOverflowClip() && containingBlock->shouldApplyClipAndScrollPositionForRepaint(repaintContainer)) |
| containingBlock->applyCachedClipAndScrollPositionForRepaint(repaintRect); |
| |
| repaintRect = containingBlock->computeRectForRepaint(repaintRect, repaintContainer); |
| |
| if (outlineSize) { |
| for (auto& child : childrenOfType<RenderElement>(*this)) |
| repaintRect.unite(child.rectWithOutlineForRepaint(repaintContainer, outlineSize)); |
| |
| if (RenderBoxModelObject* continuation = this->continuation()) { |
| if (!continuation->isInline() && continuation->parent()) |
| repaintRect.unite(continuation->rectWithOutlineForRepaint(repaintContainer, outlineSize)); |
| } |
| } |
| |
| return repaintRect; |
| } |
| |
| LayoutRect RenderInline::rectWithOutlineForRepaint(const RenderLayerModelObject* repaintContainer, LayoutUnit outlineWidth) const |
| { |
| LayoutRect r(RenderBoxModelObject::rectWithOutlineForRepaint(repaintContainer, outlineWidth)); |
| for (auto& child : childrenOfType<RenderElement>(*this)) |
| r.unite(child.rectWithOutlineForRepaint(repaintContainer, outlineWidth)); |
| return r; |
| } |
| |
| LayoutRect RenderInline::computeRectForRepaint(const LayoutRect& rect, const RenderLayerModelObject* repaintContainer, RepaintContext context) const |
| { |
| // Repaint offset cache is only valid for root-relative repainting |
| LayoutRect adjustedRect = rect; |
| if (view().frameView().layoutContext().isPaintOffsetCacheEnabled() && !repaintContainer) { |
| auto* layoutState = view().frameView().layoutContext().layoutState(); |
| if (style().hasInFlowPosition() && layer()) |
| adjustedRect.move(layer()->offsetForInFlowPosition()); |
| adjustedRect.move(layoutState->paintOffset()); |
| if (layoutState->isClipped()) |
| adjustedRect.intersect(layoutState->clipRect()); |
| return adjustedRect; |
| } |
| |
| if (repaintContainer == this) |
| return adjustedRect; |
| |
| bool containerSkipped; |
| RenderElement* container = this->container(repaintContainer, containerSkipped); |
| if (!container) |
| return adjustedRect; |
| |
| LayoutPoint topLeft = adjustedRect.location(); |
| |
| if (style().hasInFlowPosition() && layer()) { |
| // Apply the in-flow position offset when invalidating a rectangle. The layer |
| // is translated, but the render box isn't, so we need to do this to get the |
| // right dirty rect. Since this is called from RenderObject::setStyle, the relative or sticky position |
| // flag on the RenderObject has been cleared, so use the one on the style(). |
| topLeft += layer()->offsetForInFlowPosition(); |
| } |
| |
| // FIXME: We ignore the lightweight clipping rect that controls use, since if |o| is in mid-layout, |
| // its controlClipRect will be wrong. For overflow clip we use the values cached by the layer. |
| adjustedRect.setLocation(topLeft); |
| if (container->hasOverflowClip()) { |
| downcast<RenderBox>(*container).applyCachedClipAndScrollPositionForRepaint(adjustedRect); |
| if (adjustedRect.isEmpty()) |
| return adjustedRect; |
| } |
| |
| if (containerSkipped) { |
| // If the repaintContainer is below o, then we need to map the rect into repaintContainer's coordinates. |
| LayoutSize containerOffset = repaintContainer->offsetFromAncestorContainer(*container); |
| adjustedRect.move(-containerOffset); |
| return adjustedRect; |
| } |
| return container->computeRectForRepaint(adjustedRect, repaintContainer, context); |
| } |
| |
| LayoutSize RenderInline::offsetFromContainer(RenderElement& container, const LayoutPoint&, bool* offsetDependsOnPoint) const |
| { |
| ASSERT(&container == this->container()); |
| |
| LayoutSize offset; |
| if (isInFlowPositioned()) |
| offset += offsetForInFlowPosition(); |
| |
| if (is<RenderBox>(container)) |
| offset -= toLayoutSize(downcast<RenderBox>(container).scrollPosition()); |
| |
| if (offsetDependsOnPoint) |
| *offsetDependsOnPoint = (is<RenderBox>(container) && container.style().isFlippedBlocksWritingMode()) || is<RenderFragmentedFlow>(container); |
| |
| return offset; |
| } |
| |
| void RenderInline::mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState& transformState, MapCoordinatesFlags mode, bool* wasFixed) const |
| { |
| if (repaintContainer == this) |
| return; |
| |
| if (view().frameView().layoutContext().isPaintOffsetCacheEnabled() && !repaintContainer) { |
| auto* layoutState = view().frameView().layoutContext().layoutState(); |
| LayoutSize offset = layoutState->paintOffset(); |
| if (style().hasInFlowPosition() && layer()) |
| offset += layer()->offsetForInFlowPosition(); |
| transformState.move(offset); |
| return; |
| } |
| |
| bool containerSkipped; |
| RenderElement* container = this->container(repaintContainer, containerSkipped); |
| if (!container) |
| return; |
| |
| if (mode & ApplyContainerFlip && is<RenderBox>(*container)) { |
| if (container->style().isFlippedBlocksWritingMode()) { |
| LayoutPoint centerPoint(transformState.mappedPoint()); |
| transformState.move(downcast<RenderBox>(*container).flipForWritingMode(centerPoint) - centerPoint); |
| } |
| mode &= ~ApplyContainerFlip; |
| } |
| |
| LayoutSize containerOffset = offsetFromContainer(*container, LayoutPoint(transformState.mappedPoint())); |
| |
| bool preserve3D = mode & UseTransforms && (container->style().preserves3D() || style().preserves3D()); |
| if (mode & UseTransforms && shouldUseTransformFromContainer(container)) { |
| TransformationMatrix t; |
| getTransformFromContainer(container, containerOffset, t); |
| transformState.applyTransform(t, preserve3D ? TransformState::AccumulateTransform : TransformState::FlattenTransform); |
| } else |
| transformState.move(containerOffset.width(), containerOffset.height(), preserve3D ? TransformState::AccumulateTransform : TransformState::FlattenTransform); |
| |
| if (containerSkipped) { |
| // There can't be a transform between repaintContainer and o, because transforms create containers, so it should be safe |
| // to just subtract the delta between the repaintContainer and o. |
| LayoutSize containerOffset = repaintContainer->offsetFromAncestorContainer(*container); |
| transformState.move(-containerOffset.width(), -containerOffset.height(), preserve3D ? TransformState::AccumulateTransform : TransformState::FlattenTransform); |
| return; |
| } |
| |
| container->mapLocalToContainer(repaintContainer, transformState, mode, wasFixed); |
| } |
| |
| const RenderObject* RenderInline::pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const |
| { |
| ASSERT(ancestorToStopAt != this); |
| |
| bool ancestorSkipped; |
| RenderElement* container = this->container(ancestorToStopAt, ancestorSkipped); |
| if (!container) |
| return nullptr; |
| |
| LayoutSize adjustmentForSkippedAncestor; |
| if (ancestorSkipped) { |
| // There can't be a transform between repaintContainer and o, because transforms create containers, so it should be safe |
| // to just subtract the delta between the ancestor and o. |
| adjustmentForSkippedAncestor = -ancestorToStopAt->offsetFromAncestorContainer(*container); |
| } |
| |
| bool offsetDependsOnPoint = false; |
| LayoutSize containerOffset = offsetFromContainer(*container, LayoutPoint(), &offsetDependsOnPoint); |
| |
| bool preserve3D = container->style().preserves3D() || style().preserves3D(); |
| if (shouldUseTransformFromContainer(container)) { |
| TransformationMatrix t; |
| getTransformFromContainer(container, containerOffset, t); |
| t.translateRight(adjustmentForSkippedAncestor.width(), adjustmentForSkippedAncestor.height()); // FIXME: right? |
| geometryMap.push(this, t, preserve3D, offsetDependsOnPoint); |
| } else { |
| containerOffset += adjustmentForSkippedAncestor; |
| geometryMap.push(this, containerOffset, preserve3D, offsetDependsOnPoint); |
| } |
| |
| return ancestorSkipped ? ancestorToStopAt : container; |
| } |
| |
| void RenderInline::updateDragState(bool dragOn) |
| { |
| RenderBoxModelObject::updateDragState(dragOn); |
| if (RenderBoxModelObject* continuation = this->continuation()) |
| continuation->updateDragState(dragOn); |
| } |
| |
| void RenderInline::updateHitTestResult(HitTestResult& result, const LayoutPoint& point) |
| { |
| if (result.innerNode()) |
| return; |
| |
| LayoutPoint localPoint(point); |
| if (Element* element = this->element()) { |
| if (isContinuation()) { |
| // We're in the continuation of a split inline. Adjust our local point to be in the coordinate space |
| // of the principal renderer's containing block. This will end up being the innerNonSharedNode. |
| RenderBlock* firstBlock = element->renderer()->containingBlock(); |
| |
| // Get our containing block. |
| RenderBox* block = containingBlock(); |
| localPoint.moveBy(block->location() - firstBlock->locationOffset()); |
| } |
| |
| result.setInnerNode(element); |
| if (!result.innerNonSharedNode()) |
| result.setInnerNonSharedNode(element); |
| result.setLocalPoint(localPoint); |
| } |
| } |
| |
| void RenderInline::dirtyLineBoxes(bool fullLayout) |
| { |
| if (fullLayout) { |
| m_lineBoxes.deleteLineBoxes(); |
| return; |
| } |
| |
| if (!alwaysCreateLineBoxes()) { |
| // We have to grovel into our children in order to dirty the appropriate lines. |
| for (auto& current : childrenOfType<RenderObject>(*this)) { |
| if (current.isFloatingOrOutOfFlowPositioned()) |
| continue; |
| if (is<RenderBox>(current) && !current.needsLayout()) { |
| auto& renderBox = downcast<RenderBox>(current); |
| if (renderBox.inlineBoxWrapper()) |
| renderBox.inlineBoxWrapper()->root().markDirty(); |
| } else if (!current.selfNeedsLayout()) { |
| if (is<RenderInline>(current)) { |
| auto& renderInline = downcast<RenderInline>(current); |
| for (InlineFlowBox* childLine = renderInline.firstLineBox(); childLine; childLine = childLine->nextLineBox()) |
| childLine->root().markDirty(); |
| } else if (is<RenderText>(current)) { |
| auto& renderText = downcast<RenderText>(current); |
| for (InlineTextBox* childText = renderText.firstTextBox(); childText; childText = childText->nextTextBox()) |
| childText->root().markDirty(); |
| } else if (is<RenderLineBreak>(current)) { |
| auto& renderBR = downcast<RenderLineBreak>(current); |
| if (renderBR.inlineBoxWrapper()) |
| renderBR.inlineBoxWrapper()->root().markDirty(); |
| } |
| } |
| } |
| } else |
| m_lineBoxes.dirtyLineBoxes(); |
| } |
| |
| void RenderInline::deleteLines() |
| { |
| m_lineBoxes.deleteLineBoxTree(); |
| } |
| |
| std::unique_ptr<InlineFlowBox> RenderInline::createInlineFlowBox() |
| { |
| return std::make_unique<InlineFlowBox>(*this); |
| } |
| |
| InlineFlowBox* RenderInline::createAndAppendInlineFlowBox() |
| { |
| setAlwaysCreateLineBoxes(); |
| auto newFlowBox = createInlineFlowBox(); |
| auto flowBox = newFlowBox.get(); |
| m_lineBoxes.appendLineBox(WTFMove(newFlowBox)); |
| return flowBox; |
| } |
| |
| LayoutUnit RenderInline::lineHeight(bool firstLine, LineDirectionMode /*direction*/, LinePositionMode /*linePositionMode*/) const |
| { |
| if (firstLine && view().usesFirstLineRules()) { |
| const RenderStyle& firstLineStyle = this->firstLineStyle(); |
| if (&firstLineStyle != &style()) |
| return firstLineStyle.computedLineHeight(); |
| } |
| |
| return style().computedLineHeight(); |
| } |
| |
| int RenderInline::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const |
| { |
| const RenderStyle& style = firstLine ? firstLineStyle() : this->style(); |
| const FontMetrics& fontMetrics = style.fontMetrics(); |
| return fontMetrics.ascent(baselineType) + (lineHeight(firstLine, direction, linePositionMode) - fontMetrics.height()) / 2; |
| } |
| |
| LayoutSize RenderInline::offsetForInFlowPositionedInline(const RenderBox* child) const |
| { |
| // FIXME: This function isn't right with mixed writing modes. |
| |
| ASSERT(isInFlowPositioned()); |
| if (!isInFlowPositioned()) |
| return LayoutSize(); |
| |
| // When we have an enclosing relpositioned inline, we need to add in the offset of the first line |
| // box from the rest of the content, but only in the cases where we know we're positioned |
| // relative to the inline itself. |
| |
| LayoutSize logicalOffset; |
| LayoutUnit inlinePosition; |
| LayoutUnit blockPosition; |
| if (firstLineBox()) { |
| inlinePosition = LayoutUnit::fromFloatRound(firstLineBox()->logicalLeft()); |
| blockPosition = firstLineBox()->logicalTop(); |
| } else { |
| inlinePosition = layer()->staticInlinePosition(); |
| blockPosition = layer()->staticBlockPosition(); |
| } |
| |
| if (!child->style().hasStaticInlinePosition(style().isHorizontalWritingMode())) |
| logicalOffset.setWidth(inlinePosition); |
| |
| // This is not terribly intuitive, but we have to match other browsers. Despite being a block display type inside |
| // an inline, we still keep our x locked to the left of the relative positioned inline. Arguably the correct |
| // behavior would be to go flush left to the block that contains the inline, but that isn't what other browsers |
| // do. |
| else if (!child->style().isOriginalDisplayInlineType()) |
| // Avoid adding in the left border/padding of the containing block twice. Subtract it out. |
| logicalOffset.setWidth(inlinePosition - child->containingBlock()->borderAndPaddingLogicalLeft()); |
| |
| if (!child->style().hasStaticBlockPosition(style().isHorizontalWritingMode())) |
| logicalOffset.setHeight(blockPosition); |
| |
| return style().isHorizontalWritingMode() ? logicalOffset : logicalOffset.transposedSize(); |
| } |
| |
| void RenderInline::imageChanged(WrappedImagePtr, const IntRect*) |
| { |
| if (!parent()) |
| return; |
| |
| // FIXME: We can do better. |
| repaint(); |
| } |
| |
| void RenderInline::addFocusRingRects(Vector<LayoutRect>& rects, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) |
| { |
| AbsoluteRectsGeneratorContext context(rects, additionalOffset); |
| generateLineBoxRects(context); |
| |
| for (auto& child : childrenOfType<RenderElement>(*this)) { |
| if (is<RenderListMarker>(child)) |
| continue; |
| FloatPoint pos(additionalOffset); |
| // FIXME: This doesn't work correctly with transforms. |
| if (child.hasLayer()) |
| pos = child.localToContainerPoint(FloatPoint(), paintContainer); |
| else if (is<RenderBox>(child)) |
| pos.move(downcast<RenderBox>(child).locationOffset()); |
| child.addFocusRingRects(rects, flooredIntPoint(pos), paintContainer); |
| } |
| |
| if (RenderBoxModelObject* continuation = this->continuation()) { |
| if (continuation->isInline()) |
| continuation->addFocusRingRects(rects, flooredLayoutPoint(LayoutPoint(additionalOffset + continuation->containingBlock()->location() - containingBlock()->location())), paintContainer); |
| else |
| continuation->addFocusRingRects(rects, flooredLayoutPoint(LayoutPoint(additionalOffset + downcast<RenderBox>(*continuation).location() - containingBlock()->location())), paintContainer); |
| } |
| } |
| |
| void RenderInline::paintOutline(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| if (!hasOutline()) |
| return; |
| |
| auto& styleToUse = style(); |
| // Only paint the focus ring by hand if the theme isn't able to draw it. |
| if (styleToUse.outlineStyleIsAuto() && !theme().supportsFocusRing(styleToUse)) { |
| Vector<LayoutRect> focusRingRects; |
| addFocusRingRects(focusRingRects, paintOffset, paintInfo.paintContainer); |
| paintFocusRing(paintInfo, styleToUse, focusRingRects); |
| } |
| |
| if (hasOutlineAnnotation() && !styleToUse.outlineStyleIsAuto() && !theme().supportsFocusRing(styleToUse)) |
| addPDFURLRect(paintInfo, paintOffset); |
| |
| GraphicsContext& graphicsContext = paintInfo.context(); |
| if (graphicsContext.paintingDisabled()) |
| return; |
| |
| if (styleToUse.outlineStyleIsAuto() || !styleToUse.hasOutline()) |
| return; |
| |
| Vector<LayoutRect> rects; |
| rects.append(LayoutRect()); |
| for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) { |
| const RootInlineBox& rootBox = curr->root(); |
| LayoutUnit top = std::max<LayoutUnit>(rootBox.lineTop(), curr->logicalTop()); |
| LayoutUnit bottom = std::min<LayoutUnit>(rootBox.lineBottom(), curr->logicalBottom()); |
| rects.append(LayoutRect(curr->x(), top, curr->logicalWidth(), bottom - top)); |
| } |
| rects.append(LayoutRect()); |
| |
| Color outlineColor = styleToUse.visitedDependentColor(CSSPropertyOutlineColor); |
| bool useTransparencyLayer = !outlineColor.isOpaque(); |
| if (useTransparencyLayer) { |
| graphicsContext.beginTransparencyLayer(outlineColor.alphaAsFloat()); |
| outlineColor = outlineColor.opaqueColor(); |
| } |
| |
| for (unsigned i = 1; i < rects.size() - 1; i++) |
| paintOutlineForLine(graphicsContext, paintOffset, rects.at(i - 1), rects.at(i), rects.at(i + 1), outlineColor); |
| |
| if (useTransparencyLayer) |
| graphicsContext.endTransparencyLayer(); |
| } |
| |
| void RenderInline::paintOutlineForLine(GraphicsContext& graphicsContext, const LayoutPoint& paintOffset, |
| const LayoutRect& previousLine, const LayoutRect& thisLine, const LayoutRect& nextLine, const Color& outlineColor) |
| { |
| const auto& styleToUse = style(); |
| float outlineOffset = styleToUse.outlineOffset(); |
| LayoutRect outlineBoxRect = thisLine; |
| outlineBoxRect.inflate(outlineOffset); |
| outlineBoxRect.moveBy(paintOffset); |
| if (outlineBoxRect.isEmpty()) |
| return; |
| |
| float outlineWidth = styleToUse.outlineWidth(); |
| EBorderStyle outlineStyle = styleToUse.outlineStyle(); |
| bool antialias = shouldAntialiasLines(graphicsContext); |
| |
| auto adjustedPreviousLine = previousLine; |
| adjustedPreviousLine.moveBy(paintOffset); |
| auto adjustedNextLine = nextLine; |
| adjustedNextLine.moveBy(paintOffset); |
| |
| float adjacentWidth1 = 0; |
| float adjacentWidth2 = 0; |
| // left edge |
| auto topLeft = outlineBoxRect.minXMinYCorner(); |
| if (previousLine.isEmpty() || thisLine.x() < previousLine.x() || (previousLine.maxX()) <= thisLine.x()) { |
| topLeft.move(-outlineWidth, -outlineWidth); |
| adjacentWidth1 = outlineWidth; |
| } else { |
| topLeft.move(-outlineWidth, 2 * outlineOffset); |
| adjacentWidth1 = -outlineWidth; |
| } |
| auto bottomRight = outlineBoxRect.minXMaxYCorner(); |
| if (nextLine.isEmpty() || thisLine.x() <= nextLine.x() || (nextLine.maxX()) <= thisLine.x()) { |
| bottomRight.move(0, outlineWidth); |
| adjacentWidth2 = outlineWidth; |
| } else { |
| bottomRight.move(0, -2 * outlineOffset); |
| adjacentWidth2 = -outlineWidth; |
| } |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSLeft, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| |
| // right edge |
| topLeft = outlineBoxRect.maxXMinYCorner(); |
| if (previousLine.isEmpty() || previousLine.maxX() < thisLine.maxX() || thisLine.maxX() <= previousLine.x()) { |
| topLeft.move(0, -outlineWidth); |
| adjacentWidth1 = outlineWidth; |
| } else { |
| topLeft.move(0, 2 * outlineOffset); |
| adjacentWidth1 = -outlineWidth; |
| } |
| bottomRight = outlineBoxRect.maxXMaxYCorner(); |
| if (nextLine.isEmpty() || nextLine.maxX() <= thisLine.maxX() || thisLine.maxX() <= nextLine.x()) { |
| bottomRight.move(outlineWidth, outlineWidth); |
| adjacentWidth2 = outlineWidth; |
| } else { |
| bottomRight.move(outlineWidth, -2 * outlineOffset); |
| adjacentWidth2 = -outlineWidth; |
| } |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSRight, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| |
| // upper edge |
| if (thisLine.x() < previousLine.x()) { |
| topLeft = outlineBoxRect.minXMinYCorner(); |
| topLeft.move(-outlineWidth, -outlineWidth); |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMinYCorner(); |
| bottomRight.move(outlineWidth, 0); |
| if (!previousLine.isEmpty() && adjustedPreviousLine.x() < bottomRight.x()) { |
| bottomRight.setX(adjustedPreviousLine.x() - outlineOffset); |
| adjacentWidth2 = -outlineWidth; |
| } else |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSTop, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| |
| if (previousLine.maxX() < thisLine.maxX()) { |
| topLeft = outlineBoxRect.minXMinYCorner(); |
| topLeft.move(-outlineWidth, -outlineWidth); |
| if (!previousLine.isEmpty() && adjustedPreviousLine.maxX() > topLeft.x()) { |
| topLeft.setX(adjustedPreviousLine.maxX() + outlineOffset); |
| adjacentWidth1 = -outlineWidth; |
| } else |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMinYCorner(); |
| bottomRight.move(outlineWidth, 0); |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSTop, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| |
| if (thisLine.x() == thisLine.maxX()) { |
| topLeft = outlineBoxRect.minXMinYCorner(); |
| topLeft.move(-outlineWidth, -outlineWidth); |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMinYCorner(); |
| bottomRight.move(outlineWidth, 0); |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSTop, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| |
| // lower edge |
| if (thisLine.x() < nextLine.x()) { |
| topLeft = outlineBoxRect.minXMaxYCorner(); |
| topLeft.move(-outlineWidth, 0); |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMaxYCorner(); |
| bottomRight.move(outlineWidth, outlineWidth); |
| if (!nextLine.isEmpty() && (adjustedNextLine.x() < bottomRight.x())) { |
| bottomRight.setX(adjustedNextLine.x() - outlineOffset); |
| adjacentWidth2 = -outlineWidth; |
| } else |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSBottom, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| |
| if (nextLine.maxX() < thisLine.maxX()) { |
| topLeft = outlineBoxRect.minXMaxYCorner(); |
| topLeft.move(-outlineWidth, 0); |
| if (!nextLine.isEmpty() && adjustedNextLine.maxX() > topLeft.x()) { |
| topLeft.setX(adjustedNextLine.maxX() + outlineOffset); |
| adjacentWidth1 = -outlineWidth; |
| } else |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMaxYCorner(); |
| bottomRight.move(outlineWidth, outlineWidth); |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSBottom, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| |
| if (thisLine.x() == thisLine.maxX()) { |
| topLeft = outlineBoxRect.minXMaxYCorner(); |
| topLeft.move(-outlineWidth, 0); |
| adjacentWidth1 = outlineWidth; |
| bottomRight = outlineBoxRect.maxXMaxYCorner(); |
| bottomRight.move(outlineWidth, outlineWidth); |
| adjacentWidth2 = outlineWidth; |
| drawLineForBoxSide(graphicsContext, FloatRect(topLeft, bottomRight), BSBottom, outlineColor, outlineStyle, adjacentWidth1, adjacentWidth2, antialias); |
| } |
| } |
| |
| #if ENABLE(DASHBOARD_SUPPORT) |
| void RenderInline::addAnnotatedRegions(Vector<AnnotatedRegionValue>& regions) |
| { |
| // Convert the style regions to absolute coordinates. |
| if (style().visibility() != VISIBLE) |
| return; |
| |
| const Vector<StyleDashboardRegion>& styleRegions = style().dashboardRegions(); |
| unsigned i, count = styleRegions.size(); |
| for (i = 0; i < count; i++) { |
| StyleDashboardRegion styleRegion = styleRegions[i]; |
| |
| LayoutRect linesBoundingBox = this->linesBoundingBox(); |
| LayoutUnit w = linesBoundingBox.width(); |
| LayoutUnit h = linesBoundingBox.height(); |
| |
| AnnotatedRegionValue region; |
| region.label = styleRegion.label; |
| region.bounds = LayoutRect(linesBoundingBox.x() + styleRegion.offset.left().value(), |
| linesBoundingBox.y() + styleRegion.offset.top().value(), |
| w - styleRegion.offset.left().value() - styleRegion.offset.right().value(), |
| h - styleRegion.offset.top().value() - styleRegion.offset.bottom().value()); |
| region.type = styleRegion.type; |
| |
| RenderObject* container = containingBlock(); |
| if (!container) |
| container = this; |
| |
| region.clip = container->computeAbsoluteRepaintRect(region.bounds); |
| if (region.clip.height() < 0) { |
| region.clip.setHeight(0); |
| region.clip.setWidth(0); |
| } |
| |
| FloatPoint absPos = container->localToAbsolute(); |
| region.bounds.setX(absPos.x() + region.bounds.x()); |
| region.bounds.setY(absPos.y() + region.bounds.y()); |
| |
| regions.append(region); |
| } |
| } |
| #endif |
| |
| } // namespace WebCore |
