| /* |
| * 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 "core/rendering/RenderInline.h" |
| |
| #include "core/dom/FullscreenElementStack.h" |
| #include "core/page/Chrome.h" |
| #include "core/page/Page.h" |
| #include "core/rendering/GraphicsContextAnnotator.h" |
| #include "core/rendering/HitTestResult.h" |
| #include "core/rendering/InlineTextBox.h" |
| #include "core/rendering/RenderBlock.h" |
| #include "core/rendering/RenderFlowThread.h" |
| #include "core/rendering/RenderFullScreen.h" |
| #include "core/rendering/RenderGeometryMap.h" |
| #include "core/rendering/RenderLayer.h" |
| #include "core/rendering/RenderTheme.h" |
| #include "core/rendering/RenderView.h" |
| #include "core/rendering/style/StyleInheritedData.h" |
| #include "platform/geometry/FloatQuad.h" |
| #include "platform/geometry/TransformState.h" |
| #include "platform/graphics/GraphicsContext.h" |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| RenderInline::RenderInline(Element* element) |
| : RenderBoxModelObject(element) |
| , m_alwaysCreateLineBoxes(false) |
| { |
| setChildrenInline(true); |
| } |
| |
| RenderInline* RenderInline::createAnonymous(Document* document) |
| { |
| RenderInline* renderer = new RenderInline(0); |
| renderer->setDocumentForAnonymous(document); |
| return renderer; |
| } |
| |
| void RenderInline::willBeDestroyed() |
| { |
| #if ASSERT_ENABLED |
| // 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() || isInlineElementContinuation(); |
| if (containingBlockPaintsContinuationOutline) { |
| if (RenderBlock* cb = containingBlock()) { |
| if (RenderBlock* cbCb = cb->containingBlock()) |
| ASSERT(!cbCb->paintsContinuationOutline(this)); |
| } |
| } |
| } |
| #endif |
| |
| // Make sure to destroy anonymous children first while they are still connected to the rest of the tree, so that they will |
| // properly dirty line boxes that they are removed from. Effects that do :before/:after only on hover could crash otherwise. |
| children()->destroyLeftoverChildren(); |
| |
| // Destroy our continuation before anything other than anonymous children. |
| // The reason we don't destroy it before anonymous children is that they may |
| // have continuations of their own that are anonymous children of our continuation. |
| RenderBoxModelObject* continuation = this->continuation(); |
| if (continuation) { |
| continuation->destroy(); |
| setContinuation(0); |
| } |
| |
| if (!documentBeingDestroyed()) { |
| if (firstLineBox()) { |
| // We can't wait for RenderBoxModelObject::destroy to clear the selection, |
| // because by then we will have nuked the line boxes. |
| // FIXME: The FrameSelection should be responsible for this when it |
| // is notified of DOM mutations. |
| if (isSelectionBorder()) |
| view()->clearSelection(); |
| |
| // 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 (InlineFlowBox* box = firstLineBox(); box; box = box->nextLineBox()) |
| box->remove(); |
| } |
| } else if (parent()) |
| parent()->dirtyLinesFromChangedChild(this); |
| } |
| |
| m_lineBoxes.deleteLineBoxes(); |
| |
| RenderBoxModelObject::willBeDestroyed(); |
| } |
| |
| RenderInline* RenderInline::inlineElementContinuation() const |
| { |
| RenderBoxModelObject* continuation = this->continuation(); |
| if (!continuation || continuation->isInline()) |
| return toRenderInline(continuation); |
| return toRenderBlock(continuation)->inlineElementContinuation(); |
| } |
| |
| void RenderInline::updateFromStyle() |
| { |
| RenderBoxModelObject::updateFromStyle(); |
| |
| // FIXME: Is this still needed. Was needed for run-ins, since run-in is considered a block display type. |
| setInline(true); |
| |
| // FIXME: Support transforms and reflections on inline flows someday. |
| setHasTransform(false); |
| setHasReflection(false); |
| } |
| |
| static RenderObject* inFlowPositionedInlineAncestor(RenderObject* p) |
| { |
| while (p && p->isRenderInline()) { |
| if (p->isInFlowPositioned()) |
| return p; |
| p = p->parent(); |
| } |
| return 0; |
| } |
| |
| static void updateStyleOfAnonymousBlockContinuations(RenderObject* block, const RenderStyle* newStyle, const RenderStyle* oldStyle) |
| { |
| for (;block && block->isAnonymousBlock(); block = block->nextSibling()) { |
| if (!toRenderBlock(block)->isAnonymousBlockContinuation()) |
| continue; |
| |
| RenderInline* cont = toRenderBlock(block)->inlineElementContinuation(); |
| RefPtr<RenderStyle> blockStyle = RenderStyle::createAnonymousStyleWithDisplay(block->style(), BLOCK); |
| |
| if (!block->style()->isOutlineEquivalent(newStyle)) { |
| blockStyle->setOutlineWidth(newStyle->outlineWidth()); |
| blockStyle->setOutlineStyle(newStyle->outlineStyle()); |
| blockStyle->setOutlineOffset(newStyle->outlineOffset()); |
| blockStyle->setOutlineColor(block->resolveColor(newStyle, CSSPropertyOutlineColor)); |
| blockStyle->setOutlineStyleIsAuto(newStyle->outlineStyleIsAuto()); |
| block->setStyle(blockStyle); |
| } |
| |
| if (block->style()->position() != newStyle->position()) { |
| // 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. |
| if (oldStyle->hasInFlowPosition() && inFlowPositionedInlineAncestor(cont)) |
| continue; |
| blockStyle->setPosition(newStyle->position()); |
| block->setStyle(blockStyle); |
| } |
| } |
| } |
| |
| 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. |
| RenderStyle* newStyle = style(); |
| RenderInline* continuation = inlineElementContinuation(); |
| for (RenderInline* currCont = continuation; currCont; currCont = currCont->inlineElementContinuation()) { |
| RenderBoxModelObject* nextCont = currCont->continuation(); |
| currCont->setContinuation(0); |
| currCont->setStyle(newStyle); |
| currCont->setContinuation(nextCont); |
| } |
| |
| // If an inline's in-flow positioning has changed 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 (continuation && oldStyle |
| && (!newStyle->isOutlineEquivalent(oldStyle) |
| || (newStyle->position() != oldStyle->position() && (newStyle->hasInFlowPosition() || oldStyle->hasInFlowPosition())))) { |
| // If any descendant blocks exist then they will be in the next anonymous block and its siblings. |
| RenderObject* block = containingBlock()->nextSibling(); |
| if (block && block->isAnonymousBlock()) |
| updateStyleOfAnonymousBlockContinuations(block, newStyle, oldStyle); |
| } |
| |
| if (!m_alwaysCreateLineBoxes) { |
| bool alwaysCreateLineBoxes = hasSelfPaintingLayer() || hasBoxDecorations() || newStyle->hasPadding() || newStyle->hasMargin() || hasOutline(); |
| if (oldStyle && alwaysCreateLineBoxes) { |
| dirtyLineBoxes(false); |
| setNeedsLayoutAndFullPaintInvalidation(); |
| } |
| m_alwaysCreateLineBoxes = 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 (m_alwaysCreateLineBoxes) |
| return; |
| |
| RenderStyle* parentStyle = parent()->style(); |
| RenderInline* parentRenderInline = parent()->isRenderInline() ? toRenderInline(parent()) : 0; |
| bool checkFonts = document().inNoQuirksMode(); |
| bool alwaysCreateLineBoxes = (parentRenderInline && parentRenderInline->alwaysCreateLineBoxes()) |
| || (parentRenderInline && parentStyle->verticalAlign() != BASELINE) |
| || style()->verticalAlign() != BASELINE |
| || style()->textEmphasisMark() != TextEmphasisMarkNone |
| || (checkFonts && (!parentStyle->font().fontMetrics().hasIdenticalAscentDescentAndLineGap(style()->font().fontMetrics()) |
| || parentStyle->lineHeight() != style()->lineHeight())); |
| |
| if (!alwaysCreateLineBoxes && checkFonts && document().styleEngine()->usesFirstLineRules()) { |
| // Have to check the first line style as well. |
| parentStyle = parent()->style(true); |
| RenderStyle* childStyle = style(true); |
| alwaysCreateLineBoxes = !parentStyle->font().fontMetrics().hasIdenticalAscentDescentAndLineGap(childStyle->font().fontMetrics()) |
| || childStyle->verticalAlign() != BASELINE |
| || parentStyle->lineHeight() != childStyle->lineHeight(); |
| } |
| |
| if (alwaysCreateLineBoxes) { |
| if (!fullLayout) |
| dirtyLineBoxes(false); |
| m_alwaysCreateLineBoxes = true; |
| } |
| } |
| |
| LayoutRect RenderInline::localCaretRect(InlineBox* inlineBox, int, 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(borderAndPaddingWidth(), 0); |
| |
| if (InlineBox* firstBox = firstLineBox()) |
| caretRect.moveBy(roundedLayoutPoint(firstBox->topLeft())); |
| |
| return caretRect; |
| } |
| |
| void RenderInline::addChild(RenderObject* newChild, RenderObject* beforeChild) |
| { |
| if (continuation()) |
| return addChildToContinuation(newChild, beforeChild); |
| return addChildIgnoringContinuation(newChild, beforeChild); |
| } |
| |
| static RenderBoxModelObject* nextContinuation(RenderObject* renderer) |
| { |
| if (renderer->isInline() && !renderer->isReplaced()) |
| return toRenderInline(renderer)->continuation(); |
| return toRenderBlock(renderer)->inlineElementContinuation(); |
| } |
| |
| RenderBoxModelObject* RenderInline::continuationBefore(RenderObject* beforeChild) |
| { |
| if (beforeChild && beforeChild->parent() == this) |
| return this; |
| |
| RenderBoxModelObject* curr = nextContinuation(this); |
| RenderBoxModelObject* nextToLast = this; |
| RenderBoxModelObject* last = this; |
| while (curr) { |
| if (beforeChild && beforeChild->parent() == curr) { |
| if (curr->slowFirstChild() == beforeChild) |
| return last; |
| return curr; |
| } |
| |
| nextToLast = last; |
| last = curr; |
| curr = nextContinuation(curr); |
| } |
| |
| if (!beforeChild && !last->slowFirstChild()) |
| return nextToLast; |
| return last; |
| } |
| |
| void RenderInline::addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild) |
| { |
| // Make sure we don't append things after :after-generated content if we have it. |
| if (!beforeChild && isAfterContent(lastChild())) |
| beforeChild = lastChild(); |
| |
| if (!newChild->isInline() && !newChild->isFloatingOrOutOfFlowPositioned()) { |
| // We are placing a block inside an inline. We have to perform a split of this |
| // inline into continuations. This involves creating an anonymous block box to hold |
| // |newChild|. We then make that block box a continuation of this inline. We take all of |
| // the children after |beforeChild| and put them in a clone of this object. |
| RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(style(), BLOCK); |
| |
| // If inside an inline affected by in-flow positioning the block needs to be affected by it too. |
| // Giving the block a layer like this allows it to collect the x/y offsets from inline parents later. |
| if (RenderObject* positionedAncestor = inFlowPositionedInlineAncestor(this)) |
| newStyle->setPosition(positionedAncestor->style()->position()); |
| |
| RenderBlockFlow* newBox = RenderBlockFlow::createAnonymous(&document()); |
| newBox->setStyle(newStyle.release()); |
| RenderBoxModelObject* oldContinuation = continuation(); |
| setContinuation(newBox); |
| |
| splitFlow(beforeChild, newBox, newChild, oldContinuation); |
| return; |
| } |
| |
| RenderBoxModelObject::addChild(newChild, beforeChild); |
| |
| newChild->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| |
| RenderInline* RenderInline::clone() const |
| { |
| RenderInline* cloneInline = new RenderInline(node()); |
| cloneInline->setStyle(style()); |
| cloneInline->setFlowThreadState(flowThreadState()); |
| return cloneInline; |
| } |
| |
| void RenderInline::splitInlines(RenderBlock* fromBlock, RenderBlock* toBlock, |
| RenderBlock* middleBlock, |
| RenderObject* beforeChild, RenderBoxModelObject* oldCont) |
| { |
| // Create a clone of this inline. |
| RenderInline* cloneInline = clone(); |
| cloneInline->setContinuation(oldCont); |
| |
| // If we're splitting the inline containing the fullscreened element, |
| // |beforeChild| may be the renderer for the fullscreened element. However, |
| // that renderer is wrapped in a RenderFullScreen, so |this| is not its |
| // parent. Since the splitting logic expects |this| to be the parent, set |
| // |beforeChild| to be the RenderFullScreen. |
| if (FullscreenElementStack* fullscreen = FullscreenElementStack::fromIfExists(document())) { |
| const Element* fullScreenElement = fullscreen->webkitCurrentFullScreenElement(); |
| if (fullScreenElement && beforeChild && beforeChild->node() == fullScreenElement) |
| beforeChild = fullscreen->fullScreenRenderer(); |
| } |
| |
| // Now take all of the children from beforeChild to the end and remove |
| // them from |this| and place them in the clone. |
| RenderObject* o = beforeChild; |
| while (o) { |
| RenderObject* tmp = o; |
| o = tmp->nextSibling(); |
| cloneInline->addChildIgnoringContinuation(children()->removeChildNode(this, tmp), 0); |
| tmp->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| |
| // Hook |clone| up as the continuation of the middle block. |
| middleBlock->setContinuation(cloneInline); |
| |
| // We have been reparented and are now under the fromBlock. We need |
| // to walk up our inline parent chain until we hit the containing block. |
| // Once we hit the containing block we're done. |
| RenderBoxModelObject* curr = toRenderBoxModelObject(parent()); |
| RenderBoxModelObject* currChild = this; |
| |
| // FIXME: Because splitting is O(n^2) as tags nest pathologically, we cap the depth at which we're willing to clone. |
| // There will eventually be a better approach to this problem that will let us nest to a much |
| // greater depth (see bugzilla bug 13430) but for now we have a limit. This *will* result in |
| // incorrect rendering, but the alternative is to hang forever. |
| unsigned splitDepth = 1; |
| const unsigned cMaxSplitDepth = 200; |
| while (curr && curr != fromBlock) { |
| ASSERT(curr->isRenderInline()); |
| if (splitDepth < cMaxSplitDepth) { |
| // Create a new clone. |
| RenderInline* cloneChild = cloneInline; |
| cloneInline = toRenderInline(curr)->clone(); |
| |
| // Insert our child clone as the first child. |
| cloneInline->addChildIgnoringContinuation(cloneChild, 0); |
| |
| // Hook the clone up as a continuation of |curr|. |
| RenderInline* inlineCurr = toRenderInline(curr); |
| oldCont = inlineCurr->continuation(); |
| inlineCurr->setContinuation(cloneInline); |
| cloneInline->setContinuation(oldCont); |
| |
| // Now we need to take all of the children starting from the first child |
| // *after* currChild and append them all to the clone. |
| o = currChild->nextSibling(); |
| while (o) { |
| RenderObject* tmp = o; |
| o = tmp->nextSibling(); |
| cloneInline->addChildIgnoringContinuation(inlineCurr->children()->removeChildNode(curr, tmp), 0); |
| tmp->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| } |
| |
| // Keep walking up the chain. |
| currChild = curr; |
| curr = toRenderBoxModelObject(curr->parent()); |
| splitDepth++; |
| } |
| |
| // Now we are at the block level. We need to put the clone into the toBlock. |
| toBlock->children()->appendChildNode(toBlock, cloneInline); |
| |
| // Now take all the children after currChild and remove them from the fromBlock |
| // and put them in the toBlock. |
| o = currChild->nextSibling(); |
| while (o) { |
| RenderObject* tmp = o; |
| o = tmp->nextSibling(); |
| toBlock->children()->appendChildNode(toBlock, fromBlock->children()->removeChildNode(fromBlock, tmp)); |
| } |
| } |
| |
| void RenderInline::splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox, |
| RenderObject* newChild, RenderBoxModelObject* oldCont) |
| { |
| RenderBlock* pre = 0; |
| RenderBlock* block = containingBlock(); |
| |
| // Delete our line boxes before we do the inline split into continuations. |
| block->deleteLineBoxTree(); |
| |
| bool madeNewBeforeBlock = false; |
| if (block->isAnonymousBlock() && (!block->parent() || !block->parent()->createsAnonymousWrapper())) { |
| // We can reuse this block and make it the preBlock of the next continuation. |
| pre = block; |
| pre->removePositionedObjects(0); |
| if (pre->isRenderBlockFlow()) |
| toRenderBlockFlow(pre)->removeFloatingObjects(); |
| block = block->containingBlock(); |
| } else { |
| // No anonymous block available for use. Make one. |
| pre = block->createAnonymousBlock(); |
| madeNewBeforeBlock = true; |
| } |
| |
| RenderBlock* post = toRenderBlock(pre->createAnonymousBoxWithSameTypeAs(block)); |
| |
| RenderObject* boxFirst = madeNewBeforeBlock ? block->firstChild() : pre->nextSibling(); |
| if (madeNewBeforeBlock) |
| block->children()->insertChildNode(block, pre, boxFirst); |
| block->children()->insertChildNode(block, newBlockBox, boxFirst); |
| block->children()->insertChildNode(block, post, boxFirst); |
| block->setChildrenInline(false); |
| |
| if (madeNewBeforeBlock) { |
| RenderObject* o = boxFirst; |
| while (o) { |
| RenderObject* no = o; |
| o = no->nextSibling(); |
| pre->children()->appendChildNode(pre, block->children()->removeChildNode(block, no)); |
| no->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| } |
| |
| splitInlines(pre, post, newBlockBox, beforeChild, oldCont); |
| |
| // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting |
| // time in makeChildrenNonInline by just setting this explicitly up front. |
| newBlockBox->setChildrenInline(false); |
| |
| newBlockBox->addChild(newChild); |
| |
| // Always just do a full layout in order to ensure that line boxes (especially wrappers for images) |
| // get deleted properly. Because objects moves from the pre block into the post block, we want to |
| // make new line boxes instead of leaving the old line boxes around. |
| pre->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| block->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| post->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| |
| void RenderInline::addChildToContinuation(RenderObject* newChild, RenderObject* beforeChild) |
| { |
| RenderBoxModelObject* flow = continuationBefore(beforeChild); |
| ASSERT(!beforeChild || beforeChild->parent()->isRenderBlock() || beforeChild->parent()->isRenderInline()); |
| RenderBoxModelObject* beforeChildParent = 0; |
| if (beforeChild) |
| beforeChildParent = toRenderBoxModelObject(beforeChild->parent()); |
| else { |
| RenderBoxModelObject* cont = nextContinuation(flow); |
| if (cont) |
| beforeChildParent = cont; |
| else |
| beforeChildParent = flow; |
| } |
| |
| if (newChild->isFloatingOrOutOfFlowPositioned()) |
| return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); |
| |
| // A continuation always consists of two potential candidates: an inline or an anonymous |
| // block box holding block children. |
| bool childInline = newChild->isInline(); |
| bool bcpInline = beforeChildParent->isInline(); |
| bool flowInline = flow->isInline(); |
| |
| if (flow == beforeChildParent) |
| return flow->addChildIgnoringContinuation(newChild, beforeChild); |
| else { |
| // The goal here is to match up if we can, so that we can coalesce and create the |
| // minimal # of continuations needed for the inline. |
| if (childInline == bcpInline || (beforeChild && beforeChild->isInline())) |
| return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); |
| if (flowInline == childInline) |
| return flow->addChildIgnoringContinuation(newChild, 0); // Just treat like an append. |
| return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); |
| } |
| } |
| |
| void RenderInline::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this); |
| m_lineBoxes.paint(this, paintInfo, paintOffset); |
| } |
| |
| template<typename GeneratorContext> |
| void RenderInline::generateLineBoxRects(GeneratorContext& yield) const |
| { |
| if (!alwaysCreateLineBoxes()) |
| generateCulledLineBoxRects(yield, this); |
| else if (InlineFlowBox* curr = firstLineBox()) { |
| for (; curr; curr = curr->nextLineBox()) |
| yield(FloatRect(curr->topLeft(), curr->size())); |
| } else |
| yield(FloatRect()); |
| } |
| |
| template<typename GeneratorContext> |
| void RenderInline::generateCulledLineBoxRects(GeneratorContext& yield, const RenderInline* container) const |
| { |
| if (!culledInlineFirstLineBox()) { |
| yield(FloatRect()); |
| return; |
| } |
| |
| bool isHorizontal = style()->isHorizontalWritingMode(); |
| |
| for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (curr->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 (curr->isBox()) { |
| RenderBox* currBox = toRenderBox(curr); |
| if (currBox->inlineBoxWrapper()) { |
| RootInlineBox& rootBox = currBox->inlineBoxWrapper()->root(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.renderer().style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent() - container->style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent()); |
| int logicalHeight = container->style(rootBox.isFirstLineStyle())->font().fontMetrics().height(); |
| if (isHorizontal) |
| yield(FloatRect(currBox->inlineBoxWrapper()->x() - currBox->marginLeft(), logicalTop, (currBox->width() + currBox->marginWidth()).toFloat(), logicalHeight)); |
| else |
| yield(FloatRect(logicalTop, currBox->inlineBoxWrapper()->y() - currBox->marginTop(), logicalHeight, (currBox->height() + currBox->marginHeight()).toFloat())); |
| } |
| } else if (curr->isRenderInline()) { |
| // If the child doesn't need line boxes either, then we can recur. |
| RenderInline* currInline = toRenderInline(curr); |
| if (!currInline->alwaysCreateLineBoxes()) |
| currInline->generateCulledLineBoxRects(yield, container); |
| else { |
| for (InlineFlowBox* childLine = currInline->firstLineBox(); childLine; childLine = childLine->nextLineBox()) { |
| RootInlineBox& rootBox = childLine->root(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.renderer().style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent() - container->style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent()); |
| int logicalHeight = container->style(rootBox.isFirstLineStyle())->font().fontMetrics().height(); |
| if (isHorizontal) |
| yield(FloatRect(childLine->x() - childLine->marginLogicalLeft(), |
| logicalTop, |
| childLine->logicalWidth() + childLine->marginLogicalLeft() + childLine->marginLogicalRight(), |
| logicalHeight)); |
| else |
| yield(FloatRect(logicalTop, |
| childLine->y() - childLine->marginLogicalLeft(), |
| logicalHeight, |
| childLine->logicalWidth() + childLine->marginLogicalLeft() + childLine->marginLogicalRight())); |
| } |
| } |
| } else if (curr->isText()) { |
| RenderText* currText = toRenderText(curr); |
| for (InlineTextBox* childText = currText->firstTextBox(); childText; childText = childText->nextTextBox()) { |
| RootInlineBox& rootBox = childText->root(); |
| int logicalTop = rootBox.logicalTop() + (rootBox.renderer().style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent() - container->style(rootBox.isFirstLineStyle())->font().fontMetrics().ascent()); |
| int logicalHeight = container->style(rootBox.isFirstLineStyle())->font().fontMetrics().height(); |
| if (isHorizontal) |
| yield(FloatRect(childText->x(), logicalTop, childText->logicalWidth(), logicalHeight)); |
| else |
| yield(FloatRect(logicalTop, childText->y(), logicalHeight, childText->logicalWidth())); |
| } |
| } |
| } |
| } |
| |
| namespace { |
| |
| class AbsoluteRectsGeneratorContext { |
| public: |
| AbsoluteRectsGeneratorContext(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) |
| : m_rects(rects) |
| , m_accumulatedOffset(accumulatedOffset) { } |
| |
| void operator()(const FloatRect& rect) |
| { |
| IntRect intRect = enclosingIntRect(rect); |
| intRect.move(m_accumulatedOffset.x(), m_accumulatedOffset.y()); |
| m_rects.append(intRect); |
| } |
| private: |
| Vector<IntRect>& m_rects; |
| const LayoutPoint& m_accumulatedOffset; |
| }; |
| |
| } // unnamed namespace |
| |
| void RenderInline::absoluteRects(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) const |
| { |
| AbsoluteRectsGeneratorContext context(rects, accumulatedOffset); |
| generateLineBoxRects(context); |
| |
| if (continuation()) { |
| if (continuation()->isBox()) { |
| RenderBox* box = toRenderBox(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, 0); |
| } |
| |
| void operator()(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 (continuation()) |
| continuation()->absoluteQuads(quads, wasFixed); |
| } |
| |
| 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.isPercent()) |
| return minimumValueForLength(margin, 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 (isRelPositioned()) |
| return "RenderInline (relative positioned)"; |
| if (isStickyPositioned()) |
| 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 operator()(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 (!visibleToHitTestRequest(request)) |
| return false; |
| |
| HitTestLocation tmpLocation(locationInContainer, -toLayoutSize(accumulatedOffset)); |
| |
| Region regionResult; |
| HitTestCulledInlinesGeneratorContext context(regionResult, tmpLocation); |
| generateCulledLineBoxRects(context, this); |
| |
| if (context.intersected()) { |
| updateHitTestResult(result, tmpLocation.point()); |
| // We can not use addNodeToRectBasedTestResult to determine if we fully enclose the hit-test area |
| // because it can only handle rectangular targets. |
| result.addNodeToRectBasedTestResult(node(), request, locationInContainer); |
| return regionResult.contains(tmpLocation.boundingBox()); |
| } |
| return false; |
| } |
| |
| PositionWithAffinity RenderInline::positionForPoint(const LayoutPoint& point) |
| { |
| // FIXME: Does not deal with relative or sticky positioned inlines (should it?) |
| RenderBlock* cb = 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 cb->positionForPoint(point); |
| } |
| |
| // Translate the coords from the pre-anonymous block to the post-anonymous block. |
| LayoutPoint parentBlockPoint = cb->location() + point; |
| RenderBoxModelObject* c = continuation(); |
| while (c) { |
| RenderBox* contBlock = c->isInline() ? c->containingBlock() : toRenderBlock(c); |
| if (c->isInline() || c->slowFirstChild()) |
| return c->positionForPoint(parentBlockPoint - contBlock->locationOffset()); |
| c = toRenderBlock(c)->inlineElementContinuation(); |
| } |
| |
| return RenderBoxModelObject::positionForPoint(point); |
| } |
| |
| namespace { |
| |
| class LinesBoundingBoxGeneratorContext { |
| public: |
| LinesBoundingBoxGeneratorContext(FloatRect& rect) : m_rect(rect) { } |
| void operator()(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 (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (curr->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 (curr->isBox()) |
| return toRenderBox(curr)->inlineBoxWrapper(); |
| if (curr->isRenderInline()) { |
| RenderInline* currInline = toRenderInline(curr); |
| InlineBox* result = currInline->firstLineBoxIncludingCulling(); |
| if (result) |
| return result; |
| } else if (curr->isText()) { |
| RenderText* currText = toRenderText(curr); |
| if (currText->firstTextBox()) |
| return currText->firstTextBox(); |
| } |
| } |
| return 0; |
| } |
| |
| InlineBox* RenderInline::culledInlineLastLineBox() const |
| { |
| for (RenderObject* curr = lastChild(); curr; curr = curr->previousSibling()) { |
| if (curr->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 (curr->isBox()) |
| return toRenderBox(curr)->inlineBoxWrapper(); |
| if (curr->isRenderInline()) { |
| RenderInline* currInline = toRenderInline(curr); |
| InlineBox* result = currInline->lastLineBoxIncludingCulling(); |
| if (result) |
| return result; |
| } else if (curr->isText()) { |
| RenderText* currText = toRenderText(curr); |
| if (currText->lastTextBox()) |
| return currText->lastTextBox(); |
| } |
| } |
| return 0; |
| } |
| |
| LayoutRect RenderInline::culledInlineVisualOverflowBoundingBox() const |
| { |
| FloatRect floatResult; |
| LinesBoundingBoxGeneratorContext context(floatResult); |
| generateCulledLineBoxRects(context, this); |
| LayoutRect result(enclosingLayoutRect(floatResult)); |
| bool isHorizontal = style()->isHorizontalWritingMode(); |
| for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (curr->isFloatingOrOutOfFlowPositioned()) |
| continue; |
| |
| // For overflow we just have to propagate by hand and recompute it all. |
| if (curr->isBox()) { |
| RenderBox* currBox = toRenderBox(curr); |
| if (!currBox->hasSelfPaintingLayer() && currBox->inlineBoxWrapper()) { |
| LayoutRect logicalRect = currBox->logicalVisualOverflowRectForPropagation(style()); |
| if (isHorizontal) { |
| logicalRect.moveBy(currBox->location()); |
| result.uniteIfNonZero(logicalRect); |
| } else { |
| logicalRect.moveBy(currBox->location()); |
| result.uniteIfNonZero(logicalRect.transposedRect()); |
| } |
| } |
| } else if (curr->isRenderInline()) { |
| // If the child doesn't need line boxes either, then we can recur. |
| RenderInline* currInline = toRenderInline(curr); |
| if (!currInline->alwaysCreateLineBoxes()) |
| result.uniteIfNonZero(currInline->culledInlineVisualOverflowBoundingBox()); |
| else if (!currInline->hasSelfPaintingLayer()) |
| result.uniteIfNonZero(currInline->linesVisualOverflowBoundingBox()); |
| } else if (curr->isText()) { |
| // FIXME; Overflow from text boxes is lost. We will need to cache this information in |
| // InlineTextBoxes. |
| RenderText* currText = toRenderText(curr); |
| result.uniteIfNonZero(currText->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 = min(logicalLeftSide, curr->logicalLeftVisualOverflow()); |
| logicalRightSide = max(logicalRightSide, curr->logicalRightVisualOverflow()); |
| } |
| |
| RootInlineBox& firstRootBox = firstLineBox()->root(); |
| 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::clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer) const |
| { |
| ASSERT(!view() || !view()->layoutStateCachedOffsetsEnabled()); |
| |
| 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* cb = containingBlock(); |
| for (const RenderObject* inlineFlow = this; inlineFlow && inlineFlow->isRenderInline() && inlineFlow != cb; |
| inlineFlow = inlineFlow->parent()) { |
| if (inlineFlow == paintInvalidationContainer) { |
| hitRepaintContainer = true; |
| break; |
| } |
| if (inlineFlow->style()->hasInFlowPosition() && inlineFlow->hasLayer()) |
| repaintRect.move(toRenderInline(inlineFlow)->layer()->offsetForInFlowPosition()); |
| } |
| |
| LayoutUnit outlineSize = style()->outlineSize(); |
| repaintRect.inflate(outlineSize); |
| |
| if (hitRepaintContainer || !cb) |
| return repaintRect; |
| |
| if (cb->hasColumns()) |
| cb->adjustRectForColumns(repaintRect); |
| |
| if (cb->hasOverflowClip()) |
| cb->applyCachedClipAndScrollOffsetForRepaint(repaintRect); |
| |
| cb->mapRectToPaintInvalidationBacking(paintInvalidationContainer, repaintRect); |
| |
| if (outlineSize) { |
| for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (!curr->isText()) |
| repaintRect.unite(curr->rectWithOutlineForPaintInvalidation(paintInvalidationContainer, outlineSize)); |
| } |
| |
| if (continuation() && !continuation()->isInline() && continuation()->parent()) |
| repaintRect.unite(continuation()->rectWithOutlineForPaintInvalidation(paintInvalidationContainer, outlineSize)); |
| } |
| |
| return repaintRect; |
| } |
| |
| LayoutRect RenderInline::rectWithOutlineForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, LayoutUnit outlineWidth) const |
| { |
| LayoutRect r(RenderBoxModelObject::rectWithOutlineForPaintInvalidation(paintInvalidationContainer, outlineWidth)); |
| for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (!curr->isText()) |
| r.unite(curr->rectWithOutlineForPaintInvalidation(paintInvalidationContainer, outlineWidth)); |
| } |
| return r; |
| } |
| |
| void RenderInline::mapRectToPaintInvalidationBacking(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect& rect, bool fixed) const |
| { |
| if (RenderView* v = view()) { |
| // LayoutState is only valid for root-relative repainting |
| if (v->canMapUsingLayoutStateForContainer(paintInvalidationContainer)) { |
| LayoutState* layoutState = v->layoutState(); |
| if (style()->hasInFlowPosition() && layer()) |
| rect.move(layer()->offsetForInFlowPosition()); |
| rect.move(layoutState->paintOffset()); |
| if (layoutState->isClipped()) |
| rect.intersect(layoutState->clipRect()); |
| return; |
| } |
| } |
| |
| if (paintInvalidationContainer == this) |
| return; |
| |
| bool containerSkipped; |
| RenderObject* o = container(paintInvalidationContainer, &containerSkipped); |
| if (!o) |
| return; |
| |
| LayoutPoint topLeft = rect.location(); |
| |
| if (o->isRenderBlockFlow() && !style()->hasOutOfFlowPosition()) { |
| RenderBlock* cb = toRenderBlock(o); |
| if (cb->hasColumns()) { |
| LayoutRect repaintRect(topLeft, rect.size()); |
| cb->adjustRectForColumns(repaintRect); |
| topLeft = repaintRect.location(); |
| rect = repaintRect; |
| } |
| } |
| |
| 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. |
| rect.setLocation(topLeft); |
| if (o->hasOverflowClip()) { |
| RenderBox* containerBox = toRenderBox(o); |
| containerBox->applyCachedClipAndScrollOffsetForRepaint(rect); |
| if (rect.isEmpty()) |
| return; |
| } |
| |
| if (containerSkipped) { |
| // If the paintInvalidationContainer is below o, then we need to map the rect into paintInvalidationContainer's coordinates. |
| LayoutSize containerOffset = paintInvalidationContainer->offsetFromAncestorContainer(o); |
| rect.move(-containerOffset); |
| return; |
| } |
| |
| o->mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, fixed); |
| } |
| |
| LayoutSize RenderInline::offsetFromContainer(const RenderObject* container, const LayoutPoint& point, bool* offsetDependsOnPoint) const |
| { |
| ASSERT(container == this->container()); |
| |
| LayoutSize offset; |
| if (isInFlowPositioned()) |
| offset += offsetForInFlowPosition(); |
| |
| offset += container->columnOffset(point); |
| |
| if (container->hasOverflowClip()) |
| offset -= toRenderBox(container)->scrolledContentOffset(); |
| |
| if (offsetDependsOnPoint) { |
| *offsetDependsOnPoint = container->hasColumns() |
| || (container->isBox() && container->style()->isFlippedBlocksWritingMode()) |
| || container->isRenderFlowThread(); |
| } |
| |
| return offset; |
| } |
| |
| void RenderInline::mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState& transformState, MapCoordinatesFlags mode, bool* wasFixed) const |
| { |
| if (repaintContainer == this) |
| return; |
| |
| if (RenderView *v = view()) { |
| if (v->canMapUsingLayoutStateForContainer(repaintContainer)) { |
| LayoutState* layoutState = v->layoutState(); |
| LayoutSize offset = layoutState->paintOffset(); |
| if (style()->hasInFlowPosition() && layer()) |
| offset += layer()->offsetForInFlowPosition(); |
| transformState.move(offset); |
| return; |
| } |
| } |
| |
| bool containerSkipped; |
| RenderObject* o = container(repaintContainer, &containerSkipped); |
| if (!o) |
| return; |
| |
| if (mode & ApplyContainerFlip && o->isBox()) { |
| if (o->style()->isFlippedBlocksWritingMode()) { |
| IntPoint centerPoint = roundedIntPoint(transformState.mappedPoint()); |
| transformState.move(toRenderBox(o)->flipForWritingModeIncludingColumns(centerPoint) - centerPoint); |
| } |
| mode &= ~ApplyContainerFlip; |
| } |
| |
| LayoutSize containerOffset = offsetFromContainer(o, roundedLayoutPoint(transformState.mappedPoint())); |
| |
| bool preserve3D = mode & UseTransforms && (o->style()->preserves3D() || style()->preserves3D()); |
| if (mode & UseTransforms && shouldUseTransformFromContainer(o)) { |
| TransformationMatrix t; |
| getTransformFromContainer(o, 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(o); |
| transformState.move(-containerOffset.width(), -containerOffset.height(), preserve3D ? TransformState::AccumulateTransform : TransformState::FlattenTransform); |
| return; |
| } |
| |
| o->mapLocalToContainer(repaintContainer, transformState, mode, wasFixed); |
| } |
| |
| void RenderInline::updateDragState(bool dragOn) |
| { |
| RenderBoxModelObject::updateDragState(dragOn); |
| if (continuation()) |
| continuation()->updateDragState(dragOn); |
| } |
| |
| void RenderInline::childBecameNonInline(RenderObject* child) |
| { |
| // We have to split the parent flow. |
| RenderBlock* newBox = containingBlock()->createAnonymousBlock(); |
| RenderBoxModelObject* oldContinuation = continuation(); |
| setContinuation(newBox); |
| RenderObject* beforeChild = child->nextSibling(); |
| children()->removeChildNode(this, child); |
| splitFlow(beforeChild, newBox, child, oldContinuation); |
| } |
| |
| void RenderInline::updateHitTestResult(HitTestResult& result, const LayoutPoint& point) |
| { |
| if (result.innerNode()) |
| return; |
| |
| Node* n = node(); |
| LayoutPoint localPoint(point); |
| if (n) { |
| if (isInlineElementContinuation()) { |
| // 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 = n->renderer()->containingBlock(); |
| |
| // Get our containing block. |
| RenderBox* block = containingBlock(); |
| localPoint.moveBy(block->location() - firstBlock->locationOffset()); |
| } |
| |
| result.setInnerNode(n); |
| if (!result.innerNonSharedNode()) |
| result.setInnerNonSharedNode(n); |
| 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 (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { |
| if (curr->isFloatingOrOutOfFlowPositioned()) |
| continue; |
| if (curr->isBox() && !curr->needsLayout()) { |
| RenderBox* currBox = toRenderBox(curr); |
| if (currBox->inlineBoxWrapper()) |
| currBox->inlineBoxWrapper()->root().markDirty(); |
| } else if (!curr->selfNeedsLayout()) { |
| if (curr->isRenderInline()) { |
| RenderInline* currInline = toRenderInline(curr); |
| for (InlineFlowBox* childLine = currInline->firstLineBox(); childLine; childLine = childLine->nextLineBox()) |
| childLine->root().markDirty(); |
| } else if (curr->isText()) { |
| RenderText* currText = toRenderText(curr); |
| for (InlineTextBox* childText = currText->firstTextBox(); childText; childText = childText->nextTextBox()) |
| childText->root().markDirty(); |
| } |
| } |
| } |
| } else |
| m_lineBoxes.dirtyLineBoxes(); |
| } |
| |
| void RenderInline::deleteLineBoxTree() |
| { |
| m_lineBoxes.deleteLineBoxTree(); |
| } |
| |
| InlineFlowBox* RenderInline::createInlineFlowBox() |
| { |
| return new InlineFlowBox(*this); |
| } |
| |
| InlineFlowBox* RenderInline::createAndAppendInlineFlowBox() |
| { |
| setAlwaysCreateLineBoxes(); |
| InlineFlowBox* flowBox = createInlineFlowBox(); |
| m_lineBoxes.appendLineBox(flowBox); |
| return flowBox; |
| } |
| |
| LayoutUnit RenderInline::lineHeight(bool firstLine, LineDirectionMode /*direction*/, LinePositionMode /*linePositionMode*/) const |
| { |
| if (firstLine && document().styleEngine()->usesFirstLineRules()) { |
| RenderStyle* s = style(firstLine); |
| if (s != style()) |
| return s->computedLineHeight(); |
| } |
| |
| return style()->computedLineHeight(); |
| } |
| |
| int RenderInline::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const |
| { |
| ASSERT(linePositionMode == PositionOnContainingLine); |
| const FontMetrics& fontMetrics = style(firstLine)->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. |
| paintInvalidationForWholeRenderer(); |
| } |
| |
| void RenderInline::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) |
| { |
| AbsoluteRectsGeneratorContext context(rects, additionalOffset); |
| generateLineBoxRects(context); |
| |
| addChildFocusRingRects(rects, additionalOffset, paintContainer); |
| |
| if (continuation()) { |
| // If the continuation doesn't paint into the same container, let its repaint container handle it. |
| if (paintContainer != continuation()->containerForPaintInvalidation()) |
| return; |
| if (continuation()->isInline()) |
| continuation()->addFocusRingRects(rects, flooredLayoutPoint(additionalOffset + continuation()->containingBlock()->location() - containingBlock()->location()), paintContainer); |
| else |
| continuation()->addFocusRingRects(rects, flooredLayoutPoint(additionalOffset + toRenderBox(continuation())->location() - containingBlock()->location()), paintContainer); |
| } |
| } |
| |
| namespace { |
| |
| class AbsoluteLayoutRectsGeneratorContext { |
| public: |
| AbsoluteLayoutRectsGeneratorContext(Vector<LayoutRect>& rects, const LayoutPoint& accumulatedOffset) |
| : m_rects(rects) |
| , m_accumulatedOffset(accumulatedOffset) { } |
| |
| void operator()(const FloatRect& rect) |
| { |
| LayoutRect layoutRect(rect); |
| layoutRect.move(m_accumulatedOffset.x(), m_accumulatedOffset.y()); |
| m_rects.append(layoutRect); |
| } |
| private: |
| Vector<LayoutRect>& m_rects; |
| const LayoutPoint& m_accumulatedOffset; |
| }; |
| |
| } |
| |
| void RenderInline::computeSelfHitTestRects(Vector<LayoutRect>& rects, const LayoutPoint& layerOffset) const |
| { |
| AbsoluteLayoutRectsGeneratorContext context(rects, layerOffset); |
| generateLineBoxRects(context); |
| } |
| |
| void RenderInline::paintOutline(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| if (!hasOutline()) |
| return; |
| |
| RenderStyle* styleToUse = style(); |
| if (styleToUse->outlineStyleIsAuto() || hasOutlineAnnotation()) { |
| if (RenderTheme::theme().shouldDrawDefaultFocusRing(this)) { |
| // Only paint the focus ring by hand if the theme isn't able to draw the focus ring. |
| paintFocusRing(paintInfo, paintOffset, styleToUse); |
| } |
| } |
| |
| GraphicsContext* graphicsContext = paintInfo.context; |
| if (graphicsContext->paintingDisabled()) |
| return; |
| |
| if (styleToUse->outlineStyleIsAuto() || styleToUse->outlineStyle() == BNONE) |
| return; |
| |
| Vector<LayoutRect> rects; |
| |
| rects.append(LayoutRect()); |
| for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) { |
| RootInlineBox& root = curr->root(); |
| LayoutUnit top = max<LayoutUnit>(root.lineTop(), curr->logicalTop()); |
| LayoutUnit bottom = min<LayoutUnit>(root.lineBottom(), curr->logicalBottom()); |
| rects.append(LayoutRect(curr->x(), top, curr->logicalWidth(), bottom - top)); |
| } |
| rects.append(LayoutRect()); |
| |
| Color outlineColor = resolveColor(styleToUse, CSSPropertyOutlineColor); |
| bool useTransparencyLayer = outlineColor.hasAlpha(); |
| if (useTransparencyLayer) { |
| graphicsContext->beginTransparencyLayer(static_cast<float>(outlineColor.alpha()) / 255); |
| outlineColor = Color(outlineColor.red(), outlineColor.green(), outlineColor.blue()); |
| } |
| |
| 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->endLayer(); |
| } |
| |
| void RenderInline::paintOutlineForLine(GraphicsContext* graphicsContext, const LayoutPoint& paintOffset, |
| const LayoutRect& lastline, const LayoutRect& thisline, const LayoutRect& nextline, |
| const Color outlineColor) |
| { |
| RenderStyle* styleToUse = style(); |
| int outlineWidth = styleToUse->outlineWidth(); |
| EBorderStyle outlineStyle = styleToUse->outlineStyle(); |
| |
| bool antialias = shouldAntialiasLines(graphicsContext); |
| |
| int offset = style()->outlineOffset(); |
| |
| LayoutRect box(LayoutPoint(paintOffset.x() + thisline.x() - offset, paintOffset.y() + thisline.y() - offset), |
| LayoutSize(thisline.width() + offset, thisline.height() + offset)); |
| |
| IntRect pixelSnappedBox = pixelSnappedIntRect(box); |
| if (pixelSnappedBox.width() < 0 || pixelSnappedBox.height() < 0) |
| return; |
| IntRect pixelSnappedLastLine = pixelSnappedIntRect(paintOffset.x() + lastline.x(), 0, lastline.width(), 0); |
| IntRect pixelSnappedNextLine = pixelSnappedIntRect(paintOffset.x() + nextline.x(), 0, nextline.width(), 0); |
| |
| // left edge |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.x() - outlineWidth, |
| pixelSnappedBox.y() - (lastline.isEmpty() || thisline.x() < lastline.x() || (lastline.maxX() - 1) <= thisline.x() ? outlineWidth : 0), |
| pixelSnappedBox.x(), |
| pixelSnappedBox.maxY() + (nextline.isEmpty() || thisline.x() <= nextline.x() || (nextline.maxX() - 1) <= thisline.x() ? outlineWidth : 0), |
| BSLeft, |
| outlineColor, outlineStyle, |
| (lastline.isEmpty() || thisline.x() < lastline.x() || (lastline.maxX() - 1) <= thisline.x() ? outlineWidth : -outlineWidth), |
| (nextline.isEmpty() || thisline.x() <= nextline.x() || (nextline.maxX() - 1) <= thisline.x() ? outlineWidth : -outlineWidth), |
| antialias); |
| |
| // right edge |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.maxX(), |
| pixelSnappedBox.y() - (lastline.isEmpty() || lastline.maxX() < thisline.maxX() || (thisline.maxX() - 1) <= lastline.x() ? outlineWidth : 0), |
| pixelSnappedBox.maxX() + outlineWidth, |
| pixelSnappedBox.maxY() + (nextline.isEmpty() || nextline.maxX() <= thisline.maxX() || (thisline.maxX() - 1) <= nextline.x() ? outlineWidth : 0), |
| BSRight, |
| outlineColor, outlineStyle, |
| (lastline.isEmpty() || lastline.maxX() < thisline.maxX() || (thisline.maxX() - 1) <= lastline.x() ? outlineWidth : -outlineWidth), |
| (nextline.isEmpty() || nextline.maxX() <= thisline.maxX() || (thisline.maxX() - 1) <= nextline.x() ? outlineWidth : -outlineWidth), |
| antialias); |
| // upper edge |
| if (thisline.x() < lastline.x()) |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.x() - outlineWidth, |
| pixelSnappedBox.y() - outlineWidth, |
| min(pixelSnappedBox.maxX() + outlineWidth, (lastline.isEmpty() ? 1000000 : pixelSnappedLastLine.x())), |
| pixelSnappedBox.y(), |
| BSTop, outlineColor, outlineStyle, |
| outlineWidth, |
| (!lastline.isEmpty() && paintOffset.x() + lastline.x() + 1 < pixelSnappedBox.maxX() + outlineWidth) ? -outlineWidth : outlineWidth, |
| antialias); |
| |
| if (lastline.maxX() < thisline.maxX()) |
| drawLineForBoxSide(graphicsContext, |
| max(lastline.isEmpty() ? -1000000 : pixelSnappedLastLine.maxX(), pixelSnappedBox.x() - outlineWidth), |
| pixelSnappedBox.y() - outlineWidth, |
| pixelSnappedBox.maxX() + outlineWidth, |
| pixelSnappedBox.y(), |
| BSTop, outlineColor, outlineStyle, |
| (!lastline.isEmpty() && pixelSnappedBox.x() - outlineWidth < paintOffset.x() + lastline.maxX()) ? -outlineWidth : outlineWidth, |
| outlineWidth, antialias); |
| |
| if (thisline.x() == thisline.maxX()) |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.x() - outlineWidth, |
| pixelSnappedBox.y() - outlineWidth, |
| pixelSnappedBox.maxX() + outlineWidth, |
| pixelSnappedBox.y(), |
| BSTop, outlineColor, outlineStyle, |
| outlineWidth, |
| outlineWidth, |
| antialias); |
| |
| // lower edge |
| if (thisline.x() < nextline.x()) |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.x() - outlineWidth, |
| pixelSnappedBox.maxY(), |
| min(pixelSnappedBox.maxX() + outlineWidth, !nextline.isEmpty() ? pixelSnappedNextLine.x() + 1 : 1000000), |
| pixelSnappedBox.maxY() + outlineWidth, |
| BSBottom, outlineColor, outlineStyle, |
| outlineWidth, |
| (!nextline.isEmpty() && paintOffset.x() + nextline.x() + 1 < pixelSnappedBox.maxX() + outlineWidth) ? -outlineWidth : outlineWidth, |
| antialias); |
| |
| if (nextline.maxX() < thisline.maxX()) |
| drawLineForBoxSide(graphicsContext, |
| max(!nextline.isEmpty() ? pixelSnappedNextLine.maxX() : -1000000, pixelSnappedBox.x() - outlineWidth), |
| pixelSnappedBox.maxY(), |
| pixelSnappedBox.maxX() + outlineWidth, |
| pixelSnappedBox.maxY() + outlineWidth, |
| BSBottom, outlineColor, outlineStyle, |
| (!nextline.isEmpty() && pixelSnappedBox.x() - outlineWidth < paintOffset.x() + nextline.maxX()) ? -outlineWidth : outlineWidth, |
| outlineWidth, antialias); |
| |
| if (thisline.x() == thisline.maxX()) |
| drawLineForBoxSide(graphicsContext, |
| pixelSnappedBox.x() - outlineWidth, |
| pixelSnappedBox.maxY(), |
| pixelSnappedBox.maxX() + outlineWidth, |
| pixelSnappedBox.maxY() + outlineWidth, |
| BSBottom, outlineColor, outlineStyle, |
| outlineWidth, |
| outlineWidth, |
| antialias); |
| } |
| |
| void RenderInline::addAnnotatedRegions(Vector<AnnotatedRegionValue>& regions) |
| { |
| // Convert the style regions to absolute coordinates. |
| if (style()->visibility() != VISIBLE) |
| return; |
| |
| if (style()->getDraggableRegionMode() == DraggableRegionNone) |
| return; |
| |
| AnnotatedRegionValue region; |
| region.draggable = style()->getDraggableRegionMode() == DraggableRegionDrag; |
| region.bounds = linesBoundingBox(); |
| |
| RenderObject* container = containingBlock(); |
| if (!container) |
| container = this; |
| |
| FloatPoint absPos = container->localToAbsolute(); |
| region.bounds.setX(absPos.x() + region.bounds.x()); |
| region.bounds.setY(absPos.y() + region.bounds.y()); |
| |
| regions.append(region); |
| } |
| |
| } // namespace WebCore |
