/* | |
* Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
* (C) 1999 Antti Koivisto (koivisto@kde.org) | |
* (C) 2000 Dirk Mueller (mueller@kde.org) | |
* (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com) | |
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. | |
* Copyright (C) 2009 Google Inc. All rights reserved. | |
* Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) | |
* | |
* 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 "RenderObject.h" | |
#include "AXObjectCache.h" | |
#include "Chrome.h" | |
#include "CSSStyleSelector.h" | |
#include "FloatQuad.h" | |
#include "Frame.h" | |
#include "FrameView.h" | |
#include "GraphicsContext.h" | |
#include "HTMLNames.h" | |
#include "HitTestResult.h" | |
#include "Page.h" | |
#include "RenderArena.h" | |
#include "RenderCounter.h" | |
#include "RenderFlexibleBox.h" | |
#include "RenderImageGeneratedContent.h" | |
#include "RenderInline.h" | |
#include "RenderListItem.h" | |
#include "RenderRuby.h" | |
#include "RenderRubyText.h" | |
#include "RenderTableCell.h" | |
#include "RenderTableCol.h" | |
#include "RenderTableRow.h" | |
#include "RenderTheme.h" | |
#include "RenderView.h" | |
#include "TransformState.h" | |
#include "htmlediting.h" | |
#include <algorithm> | |
#include <stdio.h> | |
#include <wtf/RefCountedLeakCounter.h> | |
#include <wtf/UnusedParam.h> | |
#if USE(ACCELERATED_COMPOSITING) | |
#include "RenderLayerCompositor.h" | |
#endif | |
#if ENABLE(WML) | |
#include "WMLNames.h" | |
#endif | |
#if ENABLE(SVG) | |
#include "RenderSVGResource.h" | |
#include "SVGRenderSupport.h" | |
#endif | |
using namespace std; | |
namespace WebCore { | |
using namespace HTMLNames; | |
#ifndef NDEBUG | |
static void* baseOfRenderObjectBeingDeleted; | |
#endif | |
bool RenderObject::s_affectsParentBlock = false; | |
void* RenderObject::operator new(size_t sz, RenderArena* renderArena) throw() | |
{ | |
return renderArena->allocate(sz); | |
} | |
void RenderObject::operator delete(void* ptr, size_t sz) | |
{ | |
ASSERT(baseOfRenderObjectBeingDeleted == ptr); | |
// Stash size where destroy can find it. | |
*(size_t *)ptr = sz; | |
} | |
RenderObject* RenderObject::createObject(Node* node, RenderStyle* style) | |
{ | |
Document* doc = node->document(); | |
RenderArena* arena = doc->renderArena(); | |
// Minimal support for content properties replacing an entire element. | |
// Works only if we have exactly one piece of content and it's a URL. | |
// Otherwise acts as if we didn't support this feature. | |
const ContentData* contentData = style->contentData(); | |
if (contentData && !contentData->next() && contentData->isImage() && doc != node) { | |
RenderImageGeneratedContent* image = new (arena) RenderImageGeneratedContent(node); | |
image->setStyle(style); | |
if (StyleImage* styleImage = contentData->image()) | |
image->setStyleImage(styleImage); | |
return image; | |
} | |
#if ENABLE(RUBY) | |
if (node->hasTagName(rubyTag)) { | |
if (style->display() == INLINE) | |
return new (arena) RenderRubyAsInline(node); | |
else | |
return new (arena) RenderRubyAsBlock(node); | |
} | |
// treat <rt> as ruby text ONLY if it still has its default treatment of block | |
if (node->hasTagName(rtTag) && style->display() == BLOCK) | |
return new (arena) RenderRubyText(node); | |
#endif | |
switch (style->display()) { | |
case NONE: | |
return 0; | |
case INLINE: | |
return new (arena) RenderInline(node); | |
case BLOCK: | |
case INLINE_BLOCK: | |
case RUN_IN: | |
case COMPACT: | |
return new (arena) RenderBlock(node); | |
case LIST_ITEM: | |
return new (arena) RenderListItem(node); | |
case TABLE: | |
case INLINE_TABLE: | |
return new (arena) RenderTable(node); | |
case TABLE_ROW_GROUP: | |
case TABLE_HEADER_GROUP: | |
case TABLE_FOOTER_GROUP: | |
return new (arena) RenderTableSection(node); | |
case TABLE_ROW: | |
return new (arena) RenderTableRow(node); | |
case TABLE_COLUMN_GROUP: | |
case TABLE_COLUMN: | |
return new (arena) RenderTableCol(node); | |
case TABLE_CELL: | |
return new (arena) RenderTableCell(node); | |
case TABLE_CAPTION: | |
#if ENABLE(WCSS) | |
// As per the section 17.1 of the spec WAP-239-WCSS-20011026-a.pdf, | |
// the marquee box inherits and extends the characteristics of the | |
// principal block box ([CSS2] section 9.2.1). | |
case WAP_MARQUEE: | |
#endif | |
return new (arena) RenderBlock(node); | |
case BOX: | |
case INLINE_BOX: | |
return new (arena) RenderFlexibleBox(node); | |
} | |
return 0; | |
} | |
#ifndef NDEBUG | |
static WTF::RefCountedLeakCounter renderObjectCounter("RenderObject"); | |
#endif | |
RenderObject::RenderObject(Node* node) | |
: CachedResourceClient() | |
, m_style(0) | |
, m_node(node) | |
, m_parent(0) | |
, m_previous(0) | |
, m_next(0) | |
#ifndef NDEBUG | |
, m_hasAXObject(false) | |
, m_setNeedsLayoutForbidden(false) | |
#endif | |
, m_needsLayout(false) | |
, m_needsPositionedMovementLayout(false) | |
, m_normalChildNeedsLayout(false) | |
, m_posChildNeedsLayout(false) | |
, m_prefWidthsDirty(false) | |
, m_floating(false) | |
, m_positioned(false) | |
, m_relPositioned(false) | |
, m_paintBackground(false) | |
, m_isAnonymous(node == node->document()) | |
, m_isText(false) | |
, m_isBox(false) | |
, m_inline(true) | |
, m_replaced(false) | |
, m_isDragging(false) | |
, m_hasLayer(false) | |
, m_hasOverflowClip(false) | |
, m_hasTransform(false) | |
, m_hasReflection(false) | |
, m_hasOverrideSize(false) | |
, m_hasCounterNodeMap(false) | |
, m_everHadLayout(false) | |
, m_childrenInline(false) | |
, m_topMarginQuirk(false) | |
, m_bottomMarginQuirk(false) | |
, m_hasMarkupTruncation(false) | |
, m_selectionState(SelectionNone) | |
, m_hasColumns(false) | |
, m_cellWidthChanged(false) | |
{ | |
#ifndef NDEBUG | |
renderObjectCounter.increment(); | |
#endif | |
ASSERT(node); | |
} | |
RenderObject::~RenderObject() | |
{ | |
ASSERT(!node() || documentBeingDestroyed() || !document()->frame()->view() || document()->frame()->view()->layoutRoot() != this); | |
#ifndef NDEBUG | |
ASSERT(!m_hasAXObject); | |
renderObjectCounter.decrement(); | |
#endif | |
} | |
RenderTheme* RenderObject::theme() const | |
{ | |
ASSERT(document()->page()); | |
return document()->page()->theme(); | |
} | |
bool RenderObject::isDescendantOf(const RenderObject* obj) const | |
{ | |
for (const RenderObject* r = this; r; r = r->m_parent) { | |
if (r == obj) | |
return true; | |
} | |
return false; | |
} | |
bool RenderObject::isBody() const | |
{ | |
return node() && node()->hasTagName(bodyTag); | |
} | |
bool RenderObject::isHR() const | |
{ | |
return node() && node()->hasTagName(hrTag); | |
} | |
bool RenderObject::isHTMLMarquee() const | |
{ | |
return node() && node()->renderer() == this && node()->hasTagName(marqueeTag); | |
} | |
static void updateListMarkerNumbers(RenderObject* child) | |
{ | |
for (RenderObject* sibling = child; sibling; sibling = sibling->nextSibling()) { | |
if (sibling->isListItem()) | |
toRenderListItem(sibling)->updateValue(); | |
} | |
} | |
void RenderObject::addChild(RenderObject* newChild, RenderObject* beforeChild) | |
{ | |
RenderObjectChildList* children = virtualChildren(); | |
ASSERT(children); | |
if (!children) | |
return; | |
bool needsTable = false; | |
if (newChild->isListItem()) | |
updateListMarkerNumbers(beforeChild ? beforeChild : children->lastChild()); | |
else if (newChild->isTableCol() && newChild->style()->display() == TABLE_COLUMN_GROUP) | |
needsTable = !isTable(); | |
else if (newChild->isRenderBlock() && newChild->style()->display() == TABLE_CAPTION) | |
needsTable = !isTable(); | |
else if (newChild->isTableSection()) | |
needsTable = !isTable(); | |
else if (newChild->isTableRow()) | |
needsTable = !isTableSection(); | |
else if (newChild->isTableCell()) { | |
needsTable = !isTableRow(); | |
// I'm not 100% sure this is the best way to fix this, but without this | |
// change we recurse infinitely when trying to render the CSS2 test page: | |
// http://www.bath.ac.uk/%7Epy8ieh/internet/eviltests/htmlbodyheadrendering2.html. | |
// See Radar 2925291. | |
if (needsTable && isTableCell() && !children->firstChild() && !newChild->isTableCell()) | |
needsTable = false; | |
} | |
if (needsTable) { | |
RenderTable* table; | |
RenderObject* afterChild = beforeChild ? beforeChild->previousSibling() : children->lastChild(); | |
if (afterChild && afterChild->isAnonymous() && afterChild->isTable()) | |
table = toRenderTable(afterChild); | |
else { | |
table = new (renderArena()) RenderTable(document() /* is anonymous */); | |
RefPtr<RenderStyle> newStyle = RenderStyle::create(); | |
newStyle->inheritFrom(style()); | |
newStyle->setDisplay(TABLE); | |
table->setStyle(newStyle.release()); | |
addChild(table, beforeChild); | |
} | |
table->addChild(newChild); | |
} else { | |
// Just add it... | |
children->insertChildNode(this, newChild, beforeChild); | |
} | |
RenderCounter::rendererSubtreeAttached(newChild); | |
if (newChild->isText() && newChild->style()->textTransform() == CAPITALIZE) { | |
RefPtr<StringImpl> textToTransform = toRenderText(newChild)->originalText(); | |
if (textToTransform) | |
toRenderText(newChild)->setText(textToTransform.release(), true); | |
} | |
} | |
void RenderObject::removeChild(RenderObject* oldChild) | |
{ | |
RenderObjectChildList* children = virtualChildren(); | |
ASSERT(children); | |
if (!children) | |
return; | |
// We do this here instead of in removeChildNode, since the only extremely low-level uses of remove/appendChildNode | |
// cannot affect the positioned object list, and the floating object list is irrelevant (since the list gets cleared on | |
// layout anyway). | |
if (oldChild->isFloatingOrPositioned()) | |
toRenderBox(oldChild)->removeFloatingOrPositionedChildFromBlockLists(); | |
children->removeChildNode(this, oldChild); | |
} | |
RenderObject* RenderObject::nextInPreOrder() const | |
{ | |
if (RenderObject* o = firstChild()) | |
return o; | |
return nextInPreOrderAfterChildren(); | |
} | |
RenderObject* RenderObject::nextInPreOrderAfterChildren() const | |
{ | |
RenderObject* o; | |
if (!(o = nextSibling())) { | |
o = parent(); | |
while (o && !o->nextSibling()) | |
o = o->parent(); | |
if (o) | |
o = o->nextSibling(); | |
} | |
return o; | |
} | |
RenderObject* RenderObject::nextInPreOrder(RenderObject* stayWithin) const | |
{ | |
if (RenderObject* o = firstChild()) | |
return o; | |
return nextInPreOrderAfterChildren(stayWithin); | |
} | |
RenderObject* RenderObject::nextInPreOrderAfterChildren(RenderObject* stayWithin) const | |
{ | |
if (this == stayWithin) | |
return 0; | |
const RenderObject* current = this; | |
RenderObject* next; | |
while (!(next = current->nextSibling())) { | |
current = current->parent(); | |
if (!current || current == stayWithin) | |
return 0; | |
} | |
return next; | |
} | |
RenderObject* RenderObject::previousInPreOrder() const | |
{ | |
if (RenderObject* o = previousSibling()) { | |
while (o->lastChild()) | |
o = o->lastChild(); | |
return o; | |
} | |
return parent(); | |
} | |
RenderObject* RenderObject::childAt(unsigned index) const | |
{ | |
RenderObject* child = firstChild(); | |
for (unsigned i = 0; child && i < index; i++) | |
child = child->nextSibling(); | |
return child; | |
} | |
RenderObject* RenderObject::firstLeafChild() const | |
{ | |
RenderObject* r = firstChild(); | |
while (r) { | |
RenderObject* n = 0; | |
n = r->firstChild(); | |
if (!n) | |
break; | |
r = n; | |
} | |
return r; | |
} | |
RenderObject* RenderObject::lastLeafChild() const | |
{ | |
RenderObject* r = lastChild(); | |
while (r) { | |
RenderObject* n = 0; | |
n = r->lastChild(); | |
if (!n) | |
break; | |
r = n; | |
} | |
return r; | |
} | |
static void addLayers(RenderObject* obj, RenderLayer* parentLayer, RenderObject*& newObject, | |
RenderLayer*& beforeChild) | |
{ | |
if (obj->hasLayer()) { | |
if (!beforeChild && newObject) { | |
// We need to figure out the layer that follows newObject. We only do | |
// this the first time we find a child layer, and then we update the | |
// pointer values for newObject and beforeChild used by everyone else. | |
beforeChild = newObject->parent()->findNextLayer(parentLayer, newObject); | |
newObject = 0; | |
} | |
parentLayer->addChild(toRenderBoxModelObject(obj)->layer(), beforeChild); | |
return; | |
} | |
for (RenderObject* curr = obj->firstChild(); curr; curr = curr->nextSibling()) | |
addLayers(curr, parentLayer, newObject, beforeChild); | |
} | |
void RenderObject::addLayers(RenderLayer* parentLayer, RenderObject* newObject) | |
{ | |
if (!parentLayer) | |
return; | |
RenderObject* object = newObject; | |
RenderLayer* beforeChild = 0; | |
WebCore::addLayers(this, parentLayer, object, beforeChild); | |
} | |
void RenderObject::removeLayers(RenderLayer* parentLayer) | |
{ | |
if (!parentLayer) | |
return; | |
if (hasLayer()) { | |
parentLayer->removeChild(toRenderBoxModelObject(this)->layer()); | |
return; | |
} | |
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) | |
curr->removeLayers(parentLayer); | |
} | |
void RenderObject::moveLayers(RenderLayer* oldParent, RenderLayer* newParent) | |
{ | |
if (!newParent) | |
return; | |
if (hasLayer()) { | |
RenderLayer* layer = toRenderBoxModelObject(this)->layer(); | |
ASSERT(oldParent == layer->parent()); | |
if (oldParent) | |
oldParent->removeChild(layer); | |
newParent->addChild(layer); | |
return; | |
} | |
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) | |
curr->moveLayers(oldParent, newParent); | |
} | |
RenderLayer* RenderObject::findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint, | |
bool checkParent) | |
{ | |
// Error check the parent layer passed in. If it's null, we can't find anything. | |
if (!parentLayer) | |
return 0; | |
// Step 1: If our layer is a child of the desired parent, then return our layer. | |
RenderLayer* ourLayer = hasLayer() ? toRenderBoxModelObject(this)->layer() : 0; | |
if (ourLayer && ourLayer->parent() == parentLayer) | |
return ourLayer; | |
// Step 2: If we don't have a layer, or our layer is the desired parent, then descend | |
// into our siblings trying to find the next layer whose parent is the desired parent. | |
if (!ourLayer || ourLayer == parentLayer) { | |
for (RenderObject* curr = startPoint ? startPoint->nextSibling() : firstChild(); | |
curr; curr = curr->nextSibling()) { | |
RenderLayer* nextLayer = curr->findNextLayer(parentLayer, 0, false); | |
if (nextLayer) | |
return nextLayer; | |
} | |
} | |
// Step 3: If our layer is the desired parent layer, then we're finished. We didn't | |
// find anything. | |
if (parentLayer == ourLayer) | |
return 0; | |
// Step 4: If |checkParent| is set, climb up to our parent and check its siblings that | |
// follow us to see if we can locate a layer. | |
if (checkParent && parent()) | |
return parent()->findNextLayer(parentLayer, this, true); | |
return 0; | |
} | |
RenderLayer* RenderObject::enclosingLayer() const | |
{ | |
const RenderObject* curr = this; | |
while (curr) { | |
RenderLayer* layer = curr->hasLayer() ? toRenderBoxModelObject(curr)->layer() : 0; | |
if (layer) | |
return layer; | |
curr = curr->parent(); | |
} | |
return 0; | |
} | |
RenderLayer* RenderObject::enclosingSelfPaintingLayer() const | |
{ | |
const RenderObject* curr = this; | |
while (curr) { | |
RenderLayer* layer = curr->hasLayer() ? toRenderBoxModelObject(curr)->layer() : 0; | |
if (layer && layer->isSelfPaintingLayer()) | |
return layer; | |
curr = curr->parent(); | |
} | |
return 0; | |
} | |
RenderBox* RenderObject::enclosingBox() const | |
{ | |
RenderObject* curr = const_cast<RenderObject*>(this); | |
while (curr) { | |
if (curr->isBox()) | |
return toRenderBox(curr); | |
curr = curr->parent(); | |
} | |
ASSERT_NOT_REACHED(); | |
return 0; | |
} | |
RenderBlock* RenderObject::firstLineBlock() const | |
{ | |
return 0; | |
} | |
void RenderObject::setPrefWidthsDirty(bool b, bool markParents) | |
{ | |
bool alreadyDirty = m_prefWidthsDirty; | |
m_prefWidthsDirty = b; | |
if (b && !alreadyDirty && markParents && (isText() || (style()->position() != FixedPosition && style()->position() != AbsolutePosition))) | |
invalidateContainerPrefWidths(); | |
} | |
void RenderObject::invalidateContainerPrefWidths() | |
{ | |
// In order to avoid pathological behavior when inlines are deeply nested, we do include them | |
// in the chain that we mark dirty (even though they're kind of irrelevant). | |
RenderObject* o = isTableCell() ? containingBlock() : container(); | |
while (o && !o->m_prefWidthsDirty) { | |
// Don't invalidate the outermost object of an unrooted subtree. That object will be | |
// invalidated when the subtree is added to the document. | |
RenderObject* container = o->isTableCell() ? o->containingBlock() : o->container(); | |
if (!container && !o->isRenderView()) | |
break; | |
o->m_prefWidthsDirty = true; | |
if (o->style()->position() == FixedPosition || o->style()->position() == AbsolutePosition) | |
// A positioned object has no effect on the min/max width of its containing block ever. | |
// We can optimize this case and not go up any further. | |
break; | |
o = container; | |
} | |
} | |
void RenderObject::setLayerNeedsFullRepaint() | |
{ | |
ASSERT(hasLayer()); | |
toRenderBoxModelObject(this)->layer()->setNeedsFullRepaint(true); | |
} | |
RenderBlock* RenderObject::containingBlock() const | |
{ | |
if (isTableCell()) { | |
const RenderTableCell* cell = toRenderTableCell(this); | |
if (parent() && cell->section()) | |
return cell->table(); | |
return 0; | |
} | |
if (isRenderView()) | |
return const_cast<RenderView*>(toRenderView(this)); | |
RenderObject* o = parent(); | |
if (!isText() && m_style->position() == FixedPosition) { | |
while (o && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) | |
o = o->parent(); | |
} else if (!isText() && m_style->position() == AbsolutePosition) { | |
while (o && (o->style()->position() == StaticPosition || (o->isInline() && !o->isReplaced())) && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) { | |
// For relpositioned inlines, we return the nearest enclosing block. We don't try | |
// to return the inline itself. This allows us to avoid having a positioned objects | |
// list in all RenderInlines and lets us return a strongly-typed RenderBlock* result | |
// from this method. The container() method can actually be used to obtain the | |
// inline directly. | |
if (o->style()->position() == RelativePosition && o->isInline() && !o->isReplaced()) | |
return o->containingBlock(); | |
#if ENABLE(SVG) | |
if (o->isSVGForeignObject()) //foreignObject is the containing block for contents inside it | |
break; | |
#endif | |
o = o->parent(); | |
} | |
} else { | |
while (o && ((o->isInline() && !o->isReplaced()) || o->isTableRow() || o->isTableSection() | |
|| o->isTableCol() || o->isFrameSet() || o->isMedia() | |
#if ENABLE(SVG) | |
|| o->isSVGContainer() || o->isSVGRoot() | |
#endif | |
)) | |
o = o->parent(); | |
} | |
if (!o || !o->isRenderBlock()) | |
return 0; // This can still happen in case of an orphaned tree | |
return toRenderBlock(o); | |
} | |
static bool mustRepaintFillLayers(const RenderObject* renderer, const FillLayer* layer) | |
{ | |
// Nobody will use multiple layers without wanting fancy positioning. | |
if (layer->next()) | |
return true; | |
// Make sure we have a valid image. | |
StyleImage* img = layer->image(); | |
if (!img || !img->canRender(renderer->style()->effectiveZoom())) | |
return false; | |
if (!layer->xPosition().isZero() || !layer->yPosition().isZero()) | |
return true; | |
if (layer->size().type == SizeLength) { | |
if (layer->size().size.width().isPercent() || layer->size().size.height().isPercent()) | |
return true; | |
} else if (layer->size().type == Contain || layer->size().type == Cover || img->usesImageContainerSize()) | |
return true; | |
return false; | |
} | |
bool RenderObject::mustRepaintBackgroundOrBorder() const | |
{ | |
if (hasMask() && mustRepaintFillLayers(this, style()->maskLayers())) | |
return true; | |
// If we don't have a background/border/mask, then nothing to do. | |
if (!hasBoxDecorations()) | |
return false; | |
if (mustRepaintFillLayers(this, style()->backgroundLayers())) | |
return true; | |
// Our fill layers are ok. Let's check border. | |
if (style()->hasBorder()) { | |
// Border images are not ok. | |
StyleImage* borderImage = style()->borderImage().image(); | |
bool shouldPaintBorderImage = borderImage && borderImage->canRender(style()->effectiveZoom()); | |
// If the image hasn't loaded, we're still using the normal border style. | |
if (shouldPaintBorderImage && borderImage->isLoaded()) | |
return true; | |
} | |
return false; | |
} | |
void RenderObject::drawLineForBoxSide(GraphicsContext* graphicsContext, int x1, int y1, int x2, int y2, | |
BoxSide s, Color c, const Color& textcolor, EBorderStyle style, | |
int adjbw1, int adjbw2) | |
{ | |
int width = (s == BSTop || s == BSBottom ? y2 - y1 : x2 - x1); | |
if (style == DOUBLE && width < 3) | |
style = SOLID; | |
if (!c.isValid()) { | |
if (style == INSET || style == OUTSET || style == RIDGE || style == GROOVE) | |
c.setRGB(238, 238, 238); | |
else | |
c = textcolor; | |
} | |
switch (style) { | |
case BNONE: | |
case BHIDDEN: | |
return; | |
case DOTTED: | |
case DASHED: | |
graphicsContext->setStrokeColor(c, m_style->colorSpace()); | |
graphicsContext->setStrokeThickness(width); | |
graphicsContext->setStrokeStyle(style == DASHED ? DashedStroke : DottedStroke); | |
if (width > 0) | |
switch (s) { | |
case BSBottom: | |
case BSTop: | |
graphicsContext->drawLine(IntPoint(x1, (y1 + y2) / 2), IntPoint(x2, (y1 + y2) / 2)); | |
break; | |
case BSRight: | |
case BSLeft: | |
graphicsContext->drawLine(IntPoint((x1 + x2) / 2, y1), IntPoint((x1 + x2) / 2, y2)); | |
break; | |
} | |
break; | |
case DOUBLE: { | |
int third = (width + 1) / 3; | |
if (adjbw1 == 0 && adjbw2 == 0) { | |
graphicsContext->setStrokeStyle(NoStroke); | |
graphicsContext->setFillColor(c, m_style->colorSpace()); | |
switch (s) { | |
case BSTop: | |
case BSBottom: | |
graphicsContext->drawRect(IntRect(x1, y1, x2 - x1, third)); | |
graphicsContext->drawRect(IntRect(x1, y2 - third, x2 - x1, third)); | |
break; | |
case BSLeft: | |
graphicsContext->drawRect(IntRect(x1, y1 + 1, third, y2 - y1 - 1)); | |
graphicsContext->drawRect(IntRect(x2 - third, y1 + 1, third, y2 - y1 - 1)); | |
break; | |
case BSRight: | |
graphicsContext->drawRect(IntRect(x1, y1 + 1, third, y2 - y1 - 1)); | |
graphicsContext->drawRect(IntRect(x2 - third, y1 + 1, third, y2 - y1 - 1)); | |
break; | |
} | |
} else { | |
int adjbw1bigthird = ((adjbw1 > 0) ? adjbw1 + 1 : adjbw1 - 1) / 3; | |
int adjbw2bigthird = ((adjbw2 > 0) ? adjbw2 + 1 : adjbw2 - 1) / 3; | |
switch (s) { | |
case BSTop: | |
drawLineForBoxSide(graphicsContext, x1 + max((-adjbw1 * 2 + 1) / 3, 0), | |
y1, x2 - max((-adjbw2 * 2 + 1) / 3, 0), y1 + third, | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
drawLineForBoxSide(graphicsContext, x1 + max((adjbw1 * 2 + 1) / 3, 0), | |
y2 - third, x2 - max((adjbw2 * 2 + 1) / 3, 0), y2, | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
break; | |
case BSLeft: | |
drawLineForBoxSide(graphicsContext, x1, y1 + max((-adjbw1 * 2 + 1) / 3, 0), | |
x1 + third, y2 - max((-adjbw2 * 2 + 1) / 3, 0), | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
drawLineForBoxSide(graphicsContext, x2 - third, y1 + max((adjbw1 * 2 + 1) / 3, 0), | |
x2, y2 - max((adjbw2 * 2 + 1) / 3, 0), | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
break; | |
case BSBottom: | |
drawLineForBoxSide(graphicsContext, x1 + max((adjbw1 * 2 + 1) / 3, 0), | |
y1, x2 - max((adjbw2 * 2 + 1) / 3, 0), y1 + third, | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
drawLineForBoxSide(graphicsContext, x1 + max((-adjbw1 * 2 + 1) / 3, 0), | |
y2 - third, x2 - max((-adjbw2 * 2 + 1) / 3, 0), y2, | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
break; | |
case BSRight: | |
drawLineForBoxSide(graphicsContext, x1, y1 + max((adjbw1 * 2 + 1) / 3, 0), | |
x1 + third, y2 - max((adjbw2 * 2 + 1) / 3, 0), | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
drawLineForBoxSide(graphicsContext, x2 - third, y1 + max((-adjbw1 * 2 + 1) / 3, 0), | |
x2, y2 - max((-adjbw2 * 2 + 1) / 3, 0), | |
s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); | |
break; | |
default: | |
break; | |
} | |
} | |
break; | |
} | |
case RIDGE: | |
case GROOVE: | |
{ | |
EBorderStyle s1; | |
EBorderStyle s2; | |
if (style == GROOVE) { | |
s1 = INSET; | |
s2 = OUTSET; | |
} else { | |
s1 = OUTSET; | |
s2 = INSET; | |
} | |
int adjbw1bighalf = ((adjbw1 > 0) ? adjbw1 + 1 : adjbw1 - 1) / 2; | |
int adjbw2bighalf = ((adjbw2 > 0) ? adjbw2 + 1 : adjbw2 - 1) / 2; | |
switch (s) { | |
case BSTop: | |
drawLineForBoxSide(graphicsContext, x1 + max(-adjbw1, 0) / 2, y1, x2 - max(-adjbw2, 0) / 2, (y1 + y2 + 1) / 2, | |
s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf); | |
drawLineForBoxSide(graphicsContext, x1 + max(adjbw1 + 1, 0) / 2, (y1 + y2 + 1) / 2, x2 - max(adjbw2 + 1, 0) / 2, y2, | |
s, c, textcolor, s2, adjbw1 / 2, adjbw2 / 2); | |
break; | |
case BSLeft: | |
drawLineForBoxSide(graphicsContext, x1, y1 + max(-adjbw1, 0) / 2, (x1 + x2 + 1) / 2, y2 - max(-adjbw2, 0) / 2, | |
s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf); | |
drawLineForBoxSide(graphicsContext, (x1 + x2 + 1) / 2, y1 + max(adjbw1 + 1, 0) / 2, x2, y2 - max(adjbw2 + 1, 0) / 2, | |
s, c, textcolor, s2, adjbw1 / 2, adjbw2 / 2); | |
break; | |
case BSBottom: | |
drawLineForBoxSide(graphicsContext, x1 + max(adjbw1, 0) / 2, y1, x2 - max(adjbw2, 0) / 2, (y1 + y2 + 1) / 2, | |
s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf); | |
drawLineForBoxSide(graphicsContext, x1 + max(-adjbw1 + 1, 0) / 2, (y1 + y2 + 1) / 2, x2 - max(-adjbw2 + 1, 0) / 2, y2, | |
s, c, textcolor, s1, adjbw1/2, adjbw2/2); | |
break; | |
case BSRight: | |
drawLineForBoxSide(graphicsContext, x1, y1 + max(adjbw1, 0) / 2, (x1 + x2 + 1) / 2, y2 - max(adjbw2, 0) / 2, | |
s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf); | |
drawLineForBoxSide(graphicsContext, (x1 + x2 + 1) / 2, y1 + max(-adjbw1 + 1, 0) / 2, x2, y2 - max(-adjbw2 + 1, 0) / 2, | |
s, c, textcolor, s1, adjbw1/2, adjbw2/2); | |
break; | |
} | |
break; | |
} | |
case INSET: | |
if (s == BSTop || s == BSLeft) | |
c = c.dark(); | |
// fall through | |
case OUTSET: | |
if (style == OUTSET && (s == BSBottom || s == BSRight)) | |
c = c.dark(); | |
// fall through | |
case SOLID: { | |
graphicsContext->setStrokeStyle(NoStroke); | |
graphicsContext->setFillColor(c, m_style->colorSpace()); | |
ASSERT(x2 >= x1); | |
ASSERT(y2 >= y1); | |
if (!adjbw1 && !adjbw2) { | |
graphicsContext->drawRect(IntRect(x1, y1, x2 - x1, y2 - y1)); | |
return; | |
} | |
FloatPoint quad[4]; | |
switch (s) { | |
case BSTop: | |
quad[0] = FloatPoint(x1 + max(-adjbw1, 0), y1); | |
quad[1] = FloatPoint(x1 + max(adjbw1, 0), y2); | |
quad[2] = FloatPoint(x2 - max(adjbw2, 0), y2); | |
quad[3] = FloatPoint(x2 - max(-adjbw2, 0), y1); | |
break; | |
case BSBottom: | |
quad[0] = FloatPoint(x1 + max(adjbw1, 0), y1); | |
quad[1] = FloatPoint(x1 + max(-adjbw1, 0), y2); | |
quad[2] = FloatPoint(x2 - max(-adjbw2, 0), y2); | |
quad[3] = FloatPoint(x2 - max(adjbw2, 0), y1); | |
break; | |
case BSLeft: | |
quad[0] = FloatPoint(x1, y1 + max(-adjbw1, 0)); | |
quad[1] = FloatPoint(x1, y2 - max(-adjbw2, 0)); | |
quad[2] = FloatPoint(x2, y2 - max(adjbw2, 0)); | |
quad[3] = FloatPoint(x2, y1 + max(adjbw1, 0)); | |
break; | |
case BSRight: | |
quad[0] = FloatPoint(x1, y1 + max(adjbw1, 0)); | |
quad[1] = FloatPoint(x1, y2 - max(adjbw2, 0)); | |
quad[2] = FloatPoint(x2, y2 - max(-adjbw2, 0)); | |
quad[3] = FloatPoint(x2, y1 + max(-adjbw1, 0)); | |
break; | |
} | |
graphicsContext->drawConvexPolygon(4, quad); | |
break; | |
} | |
} | |
} | |
void RenderObject::drawArcForBoxSide(GraphicsContext* graphicsContext, int x, int y, float thickness, IntSize radius, | |
int angleStart, int angleSpan, BoxSide s, Color c, const Color& textColor, | |
EBorderStyle style, bool firstCorner) | |
{ | |
if ((style == DOUBLE && thickness / 2 < 3) || ((style == RIDGE || style == GROOVE) && thickness / 2 < 2)) | |
style = SOLID; | |
if (!c.isValid()) { | |
if (style == INSET || style == OUTSET || style == RIDGE || style == GROOVE) | |
c.setRGB(238, 238, 238); | |
else | |
c = textColor; | |
} | |
switch (style) { | |
case BNONE: | |
case BHIDDEN: | |
return; | |
case DOTTED: | |
case DASHED: | |
graphicsContext->setStrokeColor(c, m_style->colorSpace()); | |
graphicsContext->setStrokeStyle(style == DOTTED ? DottedStroke : DashedStroke); | |
graphicsContext->setStrokeThickness(thickness); | |
graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); | |
break; | |
case DOUBLE: { | |
float third = thickness / 3.0f; | |
float innerThird = (thickness + 1.0f) / 6.0f; | |
int shiftForInner = static_cast<int>(innerThird * 2.5f); | |
int outerY = y; | |
int outerHeight = radius.height() * 2; | |
int innerX = x + shiftForInner; | |
int innerY = y + shiftForInner; | |
int innerWidth = (radius.width() - shiftForInner) * 2; | |
int innerHeight = (radius.height() - shiftForInner) * 2; | |
if (innerThird > 1 && (s == BSTop || (firstCorner && (s == BSLeft || s == BSRight)))) { | |
outerHeight += 2; | |
innerHeight += 2; | |
} | |
graphicsContext->setStrokeStyle(SolidStroke); | |
graphicsContext->setStrokeColor(c, m_style->colorSpace()); | |
graphicsContext->setStrokeThickness(third); | |
graphicsContext->strokeArc(IntRect(x, outerY, radius.width() * 2, outerHeight), angleStart, angleSpan); | |
graphicsContext->setStrokeThickness(innerThird > 2 ? innerThird - 1 : innerThird); | |
graphicsContext->strokeArc(IntRect(innerX, innerY, innerWidth, innerHeight), angleStart, angleSpan); | |
break; | |
} | |
case GROOVE: | |
case RIDGE: { | |
Color c2; | |
if ((style == RIDGE && (s == BSTop || s == BSLeft)) || | |
(style == GROOVE && (s == BSBottom || s == BSRight))) | |
c2 = c.dark(); | |
else { | |
c2 = c; | |
c = c.dark(); | |
} | |
graphicsContext->setStrokeStyle(SolidStroke); | |
graphicsContext->setStrokeColor(c, m_style->colorSpace()); | |
graphicsContext->setStrokeThickness(thickness); | |
graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); | |
float halfThickness = (thickness + 1.0f) / 4.0f; | |
int shiftForInner = static_cast<int>(halfThickness * 1.5f); | |
graphicsContext->setStrokeColor(c2, m_style->colorSpace()); | |
graphicsContext->setStrokeThickness(halfThickness > 2 ? halfThickness - 1 : halfThickness); | |
graphicsContext->strokeArc(IntRect(x + shiftForInner, y + shiftForInner, (radius.width() - shiftForInner) * 2, | |
(radius.height() - shiftForInner) * 2), angleStart, angleSpan); | |
break; | |
} | |
case INSET: | |
if (s == BSTop || s == BSLeft) | |
c = c.dark(); | |
case OUTSET: | |
if (style == OUTSET && (s == BSBottom || s == BSRight)) | |
c = c.dark(); | |
case SOLID: | |
graphicsContext->setStrokeStyle(SolidStroke); | |
graphicsContext->setStrokeColor(c, m_style->colorSpace()); | |
graphicsContext->setStrokeThickness(thickness); | |
graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); | |
break; | |
} | |
} | |
void RenderObject::addPDFURLRect(GraphicsContext* context, const IntRect& rect) | |
{ | |
if (rect.isEmpty()) | |
return; | |
Node* n = node(); | |
if (!n || !n->isLink() || !n->isElementNode()) | |
return; | |
const AtomicString& href = static_cast<Element*>(n)->getAttribute(hrefAttr); | |
if (href.isNull()) | |
return; | |
context->setURLForRect(n->document()->completeURL(href), rect); | |
} | |
void RenderObject::paintOutline(GraphicsContext* graphicsContext, int tx, int ty, int w, int h, const RenderStyle* style) | |
{ | |
if (!hasOutline()) | |
return; | |
int ow = style->outlineWidth(); | |
EBorderStyle os = style->outlineStyle(); | |
Color oc = style->outlineColor(); | |
if (!oc.isValid()) | |
oc = style->color(); | |
int offset = style->outlineOffset(); | |
if (style->outlineStyleIsAuto() || hasOutlineAnnotation()) { | |
if (!theme()->supportsFocusRing(style)) { | |
// Only paint the focus ring by hand if the theme isn't able to draw the focus ring. | |
Vector<IntRect> focusRingRects; | |
addFocusRingRects(focusRingRects, tx, ty); | |
if (style->outlineStyleIsAuto()) | |
graphicsContext->drawFocusRing(focusRingRects, ow, offset, oc); | |
else | |
addPDFURLRect(graphicsContext, unionRect(focusRingRects)); | |
} | |
} | |
if (style->outlineStyleIsAuto() || style->outlineStyle() == BNONE) | |
return; | |
tx -= offset; | |
ty -= offset; | |
w += 2 * offset; | |
h += 2 * offset; | |
if (h < 0 || w < 0) | |
return; | |
drawLineForBoxSide(graphicsContext, tx - ow, ty - ow, tx, ty + h + ow, | |
BSLeft, Color(oc), style->color(), os, ow, ow); | |
drawLineForBoxSide(graphicsContext, tx - ow, ty - ow, tx + w + ow, ty, | |
BSTop, Color(oc), style->color(), os, ow, ow); | |
drawLineForBoxSide(graphicsContext, tx + w, ty - ow, tx + w + ow, ty + h + ow, | |
BSRight, Color(oc), style->color(), os, ow, ow); | |
drawLineForBoxSide(graphicsContext, tx - ow, ty + h, tx + w + ow, ty + h + ow, | |
BSBottom, Color(oc), style->color(), os, ow, ow); | |
} | |
IntRect RenderObject::absoluteBoundingBoxRect(bool useTransforms) | |
{ | |
if (useTransforms) { | |
Vector<FloatQuad> quads; | |
absoluteQuads(quads); | |
size_t n = quads.size(); | |
if (!n) | |
return IntRect(); | |
IntRect result = quads[0].enclosingBoundingBox(); | |
for (size_t i = 1; i < n; ++i) | |
result.unite(quads[i].enclosingBoundingBox()); | |
return result; | |
} | |
FloatPoint absPos = localToAbsolute(); | |
Vector<IntRect> rects; | |
absoluteRects(rects, absPos.x(), absPos.y()); | |
size_t n = rects.size(); | |
if (!n) | |
return IntRect(); | |
IntRect result = rects[0]; | |
for (size_t i = 1; i < n; ++i) | |
result.unite(rects[i]); | |
return result; | |
} | |
void RenderObject::absoluteFocusRingQuads(Vector<FloatQuad>& quads) | |
{ | |
Vector<IntRect> rects; | |
// FIXME: addFocusRingRects() needs to be passed this transform-unaware | |
// localToAbsolute() offset here because RenderInline::addFocusRingRects() | |
// implicitly assumes that. This doesn't work correctly with transformed | |
// descendants. | |
FloatPoint absolutePoint = localToAbsolute(); | |
addFocusRingRects(rects, absolutePoint.x(), absolutePoint.y()); | |
size_t count = rects.size(); | |
for (size_t i = 0; i < count; ++i) { | |
IntRect rect = rects[i]; | |
rect.move(-absolutePoint.x(), -absolutePoint.y()); | |
quads.append(localToAbsoluteQuad(FloatQuad(rect))); | |
} | |
} | |
void RenderObject::addAbsoluteRectForLayer(IntRect& result) | |
{ | |
if (hasLayer()) | |
result.unite(absoluteBoundingBoxRect()); | |
for (RenderObject* current = firstChild(); current; current = current->nextSibling()) | |
current->addAbsoluteRectForLayer(result); | |
} | |
IntRect RenderObject::paintingRootRect(IntRect& topLevelRect) | |
{ | |
IntRect result = absoluteBoundingBoxRect(); | |
topLevelRect = result; | |
for (RenderObject* current = firstChild(); current; current = current->nextSibling()) | |
current->addAbsoluteRectForLayer(result); | |
return result; | |
} | |
void RenderObject::paint(PaintInfo& /*paintInfo*/, int /*tx*/, int /*ty*/) | |
{ | |
} | |
RenderBoxModelObject* RenderObject::containerForRepaint() const | |
{ | |
#if USE(ACCELERATED_COMPOSITING) | |
if (RenderView* v = view()) { | |
if (v->usesCompositing()) { | |
RenderLayer* compLayer = enclosingLayer()->enclosingCompositingLayer(); | |
return compLayer ? compLayer->renderer() : 0; | |
} | |
} | |
#endif | |
// Do root-relative repaint. | |
return 0; | |
} | |
void RenderObject::repaintUsingContainer(RenderBoxModelObject* repaintContainer, const IntRect& r, bool immediate) | |
{ | |
if (!repaintContainer || repaintContainer->isRenderView()) { | |
RenderView* v = repaintContainer ? toRenderView(repaintContainer) : view(); | |
v->repaintViewRectangle(r, immediate); | |
} else { | |
#if USE(ACCELERATED_COMPOSITING) | |
RenderView* v = view(); | |
if (v->usesCompositing()) { | |
ASSERT(repaintContainer->hasLayer() && repaintContainer->layer()->isComposited()); | |
repaintContainer->layer()->setBackingNeedsRepaintInRect(r); | |
} | |
#else | |
ASSERT_NOT_REACHED(); | |
#endif | |
} | |
} | |
void RenderObject::repaint(bool immediate) | |
{ | |
// Don't repaint if we're unrooted (note that view() still returns the view when unrooted) | |
RenderView* view; | |
if (!isRooted(&view)) | |
return; | |
if (view->printing()) | |
return; // Don't repaint if we're printing. | |
RenderBoxModelObject* repaintContainer = containerForRepaint(); | |
repaintUsingContainer(repaintContainer ? repaintContainer : view, clippedOverflowRectForRepaint(repaintContainer), immediate); | |
} | |
void RenderObject::repaintRectangle(const IntRect& r, bool immediate) | |
{ | |
// Don't repaint if we're unrooted (note that view() still returns the view when unrooted) | |
RenderView* view; | |
if (!isRooted(&view)) | |
return; | |
if (view->printing()) | |
return; // Don't repaint if we're printing. | |
IntRect dirtyRect(r); | |
// FIXME: layoutDelta needs to be applied in parts before/after transforms and | |
// repaint containers. https://bugs.webkit.org/show_bug.cgi?id=23308 | |
dirtyRect.move(view->layoutDelta()); | |
RenderBoxModelObject* repaintContainer = containerForRepaint(); | |
computeRectForRepaint(repaintContainer, dirtyRect); | |
repaintUsingContainer(repaintContainer ? repaintContainer : view, dirtyRect, immediate); | |
} | |
bool RenderObject::repaintAfterLayoutIfNeeded(RenderBoxModelObject* repaintContainer, const IntRect& oldBounds, const IntRect& oldOutlineBox, const IntRect* newBoundsPtr, const IntRect* newOutlineBoxRectPtr) | |
{ | |
RenderView* v = view(); | |
if (v->printing()) | |
return false; // Don't repaint if we're printing. | |
ASSERT(!newBoundsPtr || *newBoundsPtr == clippedOverflowRectForRepaint(repaintContainer)); | |
IntRect newBounds = newBoundsPtr ? *newBoundsPtr : clippedOverflowRectForRepaint(repaintContainer); | |
IntRect newOutlineBox; | |
bool fullRepaint = selfNeedsLayout(); | |
// Presumably a background or a border exists if border-fit:lines was specified. | |
if (!fullRepaint && style()->borderFit() == BorderFitLines) | |
fullRepaint = true; | |
if (!fullRepaint) { | |
ASSERT(!newOutlineBoxRectPtr || *newOutlineBoxRectPtr == outlineBoundsForRepaint(repaintContainer)); | |
newOutlineBox = newOutlineBoxRectPtr ? *newOutlineBoxRectPtr : outlineBoundsForRepaint(repaintContainer); | |
if (newOutlineBox.location() != oldOutlineBox.location() || (mustRepaintBackgroundOrBorder() && (newBounds != oldBounds || newOutlineBox != oldOutlineBox))) | |
fullRepaint = true; | |
} | |
if (!repaintContainer) | |
repaintContainer = v; | |
if (fullRepaint) { | |
repaintUsingContainer(repaintContainer, oldBounds); | |
if (newBounds != oldBounds) | |
repaintUsingContainer(repaintContainer, newBounds); | |
return true; | |
} | |
if (newBounds == oldBounds && newOutlineBox == oldOutlineBox) | |
return false; | |
int deltaLeft = newBounds.x() - oldBounds.x(); | |
if (deltaLeft > 0) | |
repaintUsingContainer(repaintContainer, IntRect(oldBounds.x(), oldBounds.y(), deltaLeft, oldBounds.height())); | |
else if (deltaLeft < 0) | |
repaintUsingContainer(repaintContainer, IntRect(newBounds.x(), newBounds.y(), -deltaLeft, newBounds.height())); | |
int deltaRight = newBounds.right() - oldBounds.right(); | |
if (deltaRight > 0) | |
repaintUsingContainer(repaintContainer, IntRect(oldBounds.right(), newBounds.y(), deltaRight, newBounds.height())); | |
else if (deltaRight < 0) | |
repaintUsingContainer(repaintContainer, IntRect(newBounds.right(), oldBounds.y(), -deltaRight, oldBounds.height())); | |
int deltaTop = newBounds.y() - oldBounds.y(); | |
if (deltaTop > 0) | |
repaintUsingContainer(repaintContainer, IntRect(oldBounds.x(), oldBounds.y(), oldBounds.width(), deltaTop)); | |
else if (deltaTop < 0) | |
repaintUsingContainer(repaintContainer, IntRect(newBounds.x(), newBounds.y(), newBounds.width(), -deltaTop)); | |
int deltaBottom = newBounds.bottom() - oldBounds.bottom(); | |
if (deltaBottom > 0) | |
repaintUsingContainer(repaintContainer, IntRect(newBounds.x(), oldBounds.bottom(), newBounds.width(), deltaBottom)); | |
else if (deltaBottom < 0) | |
repaintUsingContainer(repaintContainer, IntRect(oldBounds.x(), newBounds.bottom(), oldBounds.width(), -deltaBottom)); | |
if (newOutlineBox == oldOutlineBox) | |
return false; | |
// We didn't move, but we did change size. Invalidate the delta, which will consist of possibly | |
// two rectangles (but typically only one). | |
RenderStyle* outlineStyle = outlineStyleForRepaint(); | |
int ow = outlineStyle->outlineSize(); | |
int width = abs(newOutlineBox.width() - oldOutlineBox.width()); | |
if (width) { | |
int shadowLeft; | |
int shadowRight; | |
style()->getBoxShadowHorizontalExtent(shadowLeft, shadowRight); | |
int borderRight = isBox() ? toRenderBox(this)->borderRight() : 0; | |
int borderWidth = max(-outlineStyle->outlineOffset(), max(borderRight, max(style()->borderTopRightRadius().width(), style()->borderBottomRightRadius().width()))) + max(ow, shadowRight); | |
IntRect rightRect(newOutlineBox.x() + min(newOutlineBox.width(), oldOutlineBox.width()) - borderWidth, | |
newOutlineBox.y(), | |
width + borderWidth, | |
max(newOutlineBox.height(), oldOutlineBox.height())); | |
int right = min(newBounds.right(), oldBounds.right()); | |
if (rightRect.x() < right) { | |
rightRect.setWidth(min(rightRect.width(), right - rightRect.x())); | |
repaintUsingContainer(repaintContainer, rightRect); | |
} | |
} | |
int height = abs(newOutlineBox.height() - oldOutlineBox.height()); | |
if (height) { | |
int shadowTop; | |
int shadowBottom; | |
style()->getBoxShadowVerticalExtent(shadowTop, shadowBottom); | |
int borderBottom = isBox() ? toRenderBox(this)->borderBottom() : 0; | |
int borderHeight = max(-outlineStyle->outlineOffset(), max(borderBottom, max(style()->borderBottomLeftRadius().height(), style()->borderBottomRightRadius().height()))) + max(ow, shadowBottom); | |
IntRect bottomRect(newOutlineBox.x(), | |
min(newOutlineBox.bottom(), oldOutlineBox.bottom()) - borderHeight, | |
max(newOutlineBox.width(), oldOutlineBox.width()), | |
height + borderHeight); | |
int bottom = min(newBounds.bottom(), oldBounds.bottom()); | |
if (bottomRect.y() < bottom) { | |
bottomRect.setHeight(min(bottomRect.height(), bottom - bottomRect.y())); | |
repaintUsingContainer(repaintContainer, bottomRect); | |
} | |
} | |
return false; | |
} | |
void RenderObject::repaintDuringLayoutIfMoved(const IntRect&) | |
{ | |
} | |
void RenderObject::repaintOverhangingFloats(bool) | |
{ | |
} | |
bool RenderObject::checkForRepaintDuringLayout() const | |
{ | |
// FIXME: <https://bugs.webkit.org/show_bug.cgi?id=20885> It is probably safe to also require | |
// m_everHadLayout. Currently, only RenderBlock::layoutBlock() adds this condition. See also | |
// <https://bugs.webkit.org/show_bug.cgi?id=15129>. | |
return !document()->view()->needsFullRepaint() && !hasLayer(); | |
} | |
IntRect RenderObject::rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth) | |
{ | |
IntRect r(clippedOverflowRectForRepaint(repaintContainer)); | |
r.inflate(outlineWidth); | |
return r; | |
} | |
IntRect RenderObject::clippedOverflowRectForRepaint(RenderBoxModelObject*) | |
{ | |
ASSERT_NOT_REACHED(); | |
return IntRect(); | |
} | |
void RenderObject::computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& rect, bool fixed) | |
{ | |
if (repaintContainer == this) | |
return; | |
if (RenderObject* o = parent()) { | |
if (o->isBlockFlow()) { | |
RenderBlock* cb = toRenderBlock(o); | |
if (cb->hasColumns()) | |
cb->adjustRectForColumns(rect); | |
} | |
if (o->hasOverflowClip()) { | |
// o->height() is inaccurate if we're in the middle of a layout of |o|, so use the | |
// layer's size instead. Even if the layer's size is wrong, the layer itself will repaint | |
// anyway if its size does change. | |
RenderBox* boxParent = toRenderBox(o); | |
IntRect repaintRect(rect); | |
repaintRect.move(-boxParent->layer()->scrolledContentOffset()); // For overflow:auto/scroll/hidden. | |
IntRect boxRect(0, 0, boxParent->layer()->width(), boxParent->layer()->height()); | |
rect = intersection(repaintRect, boxRect); | |
if (rect.isEmpty()) | |
return; | |
} | |
o->computeRectForRepaint(repaintContainer, rect, fixed); | |
} | |
} | |
void RenderObject::dirtyLinesFromChangedChild(RenderObject*) | |
{ | |
} | |
#ifndef NDEBUG | |
void RenderObject::showTreeForThis() const | |
{ | |
if (node()) | |
node()->showTreeForThis(); | |
} | |
void RenderObject::showRenderObject() const | |
{ | |
showRenderObject(0); | |
} | |
void RenderObject::showRenderObject(int printedCharacters) const | |
{ | |
// As this function is intended to be used when debugging, the | |
// this pointer may be 0. | |
if (!this) { | |
fputs("(null)\n", stderr); | |
return; | |
} | |
printedCharacters += fprintf(stderr, "%s %p", renderName(), this); | |
if (node()) { | |
if (printedCharacters) | |
for (; printedCharacters < 39; printedCharacters++) | |
fputc(' ', stderr); | |
fputc('\t', stderr); | |
node()->showNode(); | |
} else | |
fputc('\n', stderr); | |
} | |
void RenderObject::showRenderTreeAndMark(const RenderObject* markedObject1, const char* markedLabel1, const RenderObject* markedObject2, const char* markedLabel2, int depth) const | |
{ | |
int printedCharacters = 0; | |
if (markedObject1 == this && markedLabel1) | |
printedCharacters += fprintf(stderr, "%s", markedLabel1); | |
if (markedObject2 == this && markedLabel2) | |
printedCharacters += fprintf(stderr, "%s", markedLabel2); | |
for (; printedCharacters < depth * 2; printedCharacters++) | |
fputc(' ', stderr); | |
showRenderObject(printedCharacters); | |
if (!this) | |
return; | |
for (const RenderObject* child = firstChild(); child; child = child->nextSibling()) | |
child->showRenderTreeAndMark(markedObject1, markedLabel1, markedObject2, markedLabel2, depth + 1); | |
} | |
#endif // NDEBUG | |
Color RenderObject::selectionBackgroundColor() const | |
{ | |
Color color; | |
if (style()->userSelect() != SELECT_NONE) { | |
RefPtr<RenderStyle> pseudoStyle = getUncachedPseudoStyle(SELECTION); | |
if (pseudoStyle && pseudoStyle->backgroundColor().isValid()) | |
color = pseudoStyle->backgroundColor().blendWithWhite(); | |
else | |
color = document()->frame()->selection()->isFocusedAndActive() ? | |
theme()->activeSelectionBackgroundColor() : | |
theme()->inactiveSelectionBackgroundColor(); | |
} | |
return color; | |
} | |
Color RenderObject::selectionForegroundColor() const | |
{ | |
Color color; | |
if (style()->userSelect() == SELECT_NONE) | |
return color; | |
if (RefPtr<RenderStyle> pseudoStyle = getUncachedPseudoStyle(SELECTION)) { | |
color = pseudoStyle->textFillColor(); | |
if (!color.isValid()) | |
color = pseudoStyle->color(); | |
} else | |
color = document()->frame()->selection()->isFocusedAndActive() ? | |
theme()->activeSelectionForegroundColor() : | |
theme()->inactiveSelectionForegroundColor(); | |
return color; | |
} | |
#if ENABLE(DRAG_SUPPORT) | |
Node* RenderObject::draggableNode(bool dhtmlOK, bool uaOK, int x, int y, bool& dhtmlWillDrag) const | |
{ | |
if (!dhtmlOK && !uaOK) | |
return 0; | |
for (const RenderObject* curr = this; curr; curr = curr->parent()) { | |
Node* elt = curr->node(); | |
if (elt && elt->nodeType() == Node::TEXT_NODE) { | |
// Since there's no way for the author to address the -webkit-user-drag style for a text node, | |
// we use our own judgement. | |
if (uaOK && view()->frameView()->frame()->eventHandler()->shouldDragAutoNode(curr->node(), IntPoint(x, y))) { | |
dhtmlWillDrag = false; | |
return curr->node(); | |
} | |
if (elt->canStartSelection()) | |
// In this case we have a click in the unselected portion of text. If this text is | |
// selectable, we want to start the selection process instead of looking for a parent | |
// to try to drag. | |
return 0; | |
} else { | |
EUserDrag dragMode = curr->style()->userDrag(); | |
if (dhtmlOK && dragMode == DRAG_ELEMENT) { | |
dhtmlWillDrag = true; | |
return curr->node(); | |
} | |
if (uaOK && dragMode == DRAG_AUTO | |
&& view()->frameView()->frame()->eventHandler()->shouldDragAutoNode(curr->node(), IntPoint(x, y))) { | |
dhtmlWillDrag = false; | |
return curr->node(); | |
} | |
} | |
} | |
return 0; | |
} | |
#endif // ENABLE(DRAG_SUPPORT) | |
void RenderObject::selectionStartEnd(int& spos, int& epos) const | |
{ | |
view()->selectionStartEnd(spos, epos); | |
} | |
void RenderObject::handleDynamicFloatPositionChange() | |
{ | |
// We have gone from not affecting the inline status of the parent flow to suddenly | |
// having an impact. See if there is a mismatch between the parent flow's | |
// childrenInline() state and our state. | |
setInline(style()->isDisplayInlineType()); | |
if (isInline() != parent()->childrenInline()) { | |
if (!isInline()) | |
toRenderBoxModelObject(parent())->childBecameNonInline(this); | |
else { | |
// An anonymous block must be made to wrap this inline. | |
RenderBlock* block = toRenderBlock(parent())->createAnonymousBlock(); | |
RenderObjectChildList* childlist = parent()->virtualChildren(); | |
childlist->insertChildNode(parent(), block, this); | |
block->children()->appendChildNode(block, childlist->removeChildNode(parent(), this)); | |
} | |
} | |
} | |
void RenderObject::setAnimatableStyle(PassRefPtr<RenderStyle> style) | |
{ | |
if (!isText() && style) | |
setStyle(animation()->updateAnimations(this, style.get())); | |
else | |
setStyle(style); | |
} | |
StyleDifference RenderObject::adjustStyleDifference(StyleDifference diff, unsigned contextSensitiveProperties) const | |
{ | |
#if USE(ACCELERATED_COMPOSITING) | |
// If transform changed, and we are not composited, need to do a layout. | |
if (contextSensitiveProperties & ContextSensitivePropertyTransform) { | |
// Text nodes share style with their parents but transforms don't apply to them, | |
// hence the !isText() check. | |
// FIXME: when transforms are taken into account for overflow, we will need to do a layout. | |
if (!isText() && (!hasLayer() || !toRenderBoxModelObject(this)->layer()->isComposited())) | |
diff = StyleDifferenceLayout; | |
else if (diff < StyleDifferenceRecompositeLayer) | |
diff = StyleDifferenceRecompositeLayer; | |
} | |
// If opacity changed, and we are not composited, need to repaint (also | |
// ignoring text nodes) | |
if (contextSensitiveProperties & ContextSensitivePropertyOpacity) { | |
if (!isText() && (!hasLayer() || !toRenderBoxModelObject(this)->layer()->isComposited())) | |
diff = StyleDifferenceRepaintLayer; | |
else if (diff < StyleDifferenceRecompositeLayer) | |
diff = StyleDifferenceRecompositeLayer; | |
} | |
#else | |
UNUSED_PARAM(contextSensitiveProperties); | |
#endif | |
// If we have no layer(), just treat a RepaintLayer hint as a normal Repaint. | |
if (diff == StyleDifferenceRepaintLayer && !hasLayer()) | |
diff = StyleDifferenceRepaint; | |
return diff; | |
} | |
void RenderObject::setStyle(PassRefPtr<RenderStyle> style) | |
{ | |
if (m_style == style) | |
return; | |
StyleDifference diff = StyleDifferenceEqual; | |
unsigned contextSensitiveProperties = ContextSensitivePropertyNone; | |
if (m_style) | |
diff = m_style->diff(style.get(), contextSensitiveProperties); | |
diff = adjustStyleDifference(diff, contextSensitiveProperties); | |
styleWillChange(diff, style.get()); | |
RefPtr<RenderStyle> oldStyle = m_style.release(); | |
m_style = style; | |
updateFillImages(oldStyle ? oldStyle->backgroundLayers() : 0, m_style ? m_style->backgroundLayers() : 0); | |
updateFillImages(oldStyle ? oldStyle->maskLayers() : 0, m_style ? m_style->maskLayers() : 0); | |
updateImage(oldStyle ? oldStyle->borderImage().image() : 0, m_style ? m_style->borderImage().image() : 0); | |
updateImage(oldStyle ? oldStyle->maskBoxImage().image() : 0, m_style ? m_style->maskBoxImage().image() : 0); | |
// We need to ensure that view->maximalOutlineSize() is valid for any repaints that happen | |
// during styleDidChange (it's used by clippedOverflowRectForRepaint()). | |
if (m_style->outlineWidth() > 0 && m_style->outlineSize() > maximalOutlineSize(PaintPhaseOutline)) | |
toRenderView(document()->renderer())->setMaximalOutlineSize(m_style->outlineSize()); | |
styleDidChange(diff, oldStyle.get()); | |
if (!m_parent || isText()) | |
return; | |
// Now that the layer (if any) has been updated, we need to adjust the diff again, | |
// check whether we should layout now, and decide if we need to repaint. | |
StyleDifference updatedDiff = adjustStyleDifference(diff, contextSensitiveProperties); | |
if (diff <= StyleDifferenceLayoutPositionedMovementOnly) { | |
if (updatedDiff == StyleDifferenceLayout) | |
setNeedsLayoutAndPrefWidthsRecalc(); | |
else if (updatedDiff == StyleDifferenceLayoutPositionedMovementOnly) | |
setNeedsPositionedMovementLayout(); | |
} | |
if (updatedDiff == StyleDifferenceRepaintLayer || updatedDiff == StyleDifferenceRepaint) { | |
// Do a repaint with the new style now, e.g., for example if we go from | |
// not having an outline to having an outline. | |
repaint(); | |
} | |
} | |
void RenderObject::setStyleInternal(PassRefPtr<RenderStyle> style) | |
{ | |
m_style = style; | |
} | |
void RenderObject::styleWillChange(StyleDifference diff, const RenderStyle* newStyle) | |
{ | |
if (m_style) { | |
// If our z-index changes value or our visibility changes, | |
// we need to dirty our stacking context's z-order list. | |
if (newStyle) { | |
bool visibilityChanged = m_style->visibility() != newStyle->visibility() | |
|| m_style->zIndex() != newStyle->zIndex() | |
|| m_style->hasAutoZIndex() != newStyle->hasAutoZIndex(); | |
#if ENABLE(DASHBOARD_SUPPORT) | |
if (visibilityChanged) | |
document()->setDashboardRegionsDirty(true); | |
#endif | |
if (visibilityChanged && AXObjectCache::accessibilityEnabled()) | |
document()->axObjectCache()->childrenChanged(this); | |
// Keep layer hierarchy visibility bits up to date if visibility changes. | |
if (m_style->visibility() != newStyle->visibility()) { | |
if (RenderLayer* l = enclosingLayer()) { | |
if (newStyle->visibility() == VISIBLE) | |
l->setHasVisibleContent(true); | |
else if (l->hasVisibleContent() && (this == l->renderer() || l->renderer()->style()->visibility() != VISIBLE)) { | |
l->dirtyVisibleContentStatus(); | |
if (diff > StyleDifferenceRepaintLayer) | |
repaint(); | |
} | |
} | |
} | |
} | |
if (m_parent && (diff == StyleDifferenceRepaint || newStyle->outlineSize() < m_style->outlineSize())) | |
repaint(); | |
if (isFloating() && (m_style->floating() != newStyle->floating())) | |
// For changes in float styles, we need to conceivably remove ourselves | |
// from the floating objects list. | |
toRenderBox(this)->removeFloatingOrPositionedChildFromBlockLists(); | |
else if (isPositioned() && (m_style->position() != newStyle->position())) | |
// For changes in positioning styles, we need to conceivably remove ourselves | |
// from the positioned objects list. | |
toRenderBox(this)->removeFloatingOrPositionedChildFromBlockLists(); | |
s_affectsParentBlock = isFloatingOrPositioned() && | |
(!newStyle->isFloating() && newStyle->position() != AbsolutePosition && newStyle->position() != FixedPosition) | |
&& parent() && (parent()->isBlockFlow() || parent()->isRenderInline()); | |
// reset style flags | |
if (diff == StyleDifferenceLayout || diff == StyleDifferenceLayoutPositionedMovementOnly) { | |
m_floating = false; | |
m_positioned = false; | |
m_relPositioned = false; | |
} | |
m_paintBackground = false; | |
m_hasOverflowClip = false; | |
m_hasTransform = false; | |
m_hasReflection = false; | |
} else | |
s_affectsParentBlock = false; | |
if (view()->frameView()) { | |
bool shouldBlitOnFixedBackgroundImage = false; | |
#if ENABLE(FAST_MOBILE_SCROLLING) | |
// On low-powered/mobile devices, preventing blitting on a scroll can cause noticeable delays | |
// when scrolling a page with a fixed background image. As an optimization, assuming there are | |
// no fixed positoned elements on the page, we can acclerate scrolling (via blitting) if we | |
// ignore the CSS property "background-attachment: fixed". | |
shouldBlitOnFixedBackgroundImage = true; | |
#endif | |
bool newStyleSlowScroll = newStyle && !shouldBlitOnFixedBackgroundImage && newStyle->hasFixedBackgroundImage(); | |
bool oldStyleSlowScroll = m_style && !shouldBlitOnFixedBackgroundImage && m_style->hasFixedBackgroundImage(); | |
if (oldStyleSlowScroll != newStyleSlowScroll) { | |
if (oldStyleSlowScroll) | |
view()->frameView()->removeSlowRepaintObject(); | |
if (newStyleSlowScroll) | |
view()->frameView()->addSlowRepaintObject(); | |
} | |
} | |
} | |
void RenderObject::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) | |
{ | |
if (s_affectsParentBlock) | |
handleDynamicFloatPositionChange(); | |
if (!m_parent) | |
return; | |
if (diff == StyleDifferenceLayout) { | |
RenderCounter::rendererStyleChanged(this, oldStyle, m_style.get()); | |
// If the object already needs layout, then setNeedsLayout won't do | |
// any work. But if the containing block has changed, then we may need | |
// to mark the new containing blocks for layout. The change that can | |
// directly affect the containing block of this object is a change to | |
// the position style. | |
if (m_needsLayout && oldStyle->position() != m_style->position()) | |
markContainingBlocksForLayout(); | |
setNeedsLayoutAndPrefWidthsRecalc(); | |
} else if (diff == StyleDifferenceLayoutPositionedMovementOnly) | |
setNeedsPositionedMovementLayout(); | |
// Don't check for repaint here; we need to wait until the layer has been | |
// updated by subclasses before we know if we have to repaint (in setStyle()). | |
} | |
void RenderObject::updateFillImages(const FillLayer* oldLayers, const FillLayer* newLayers) | |
{ | |
// Optimize the common case | |
if (oldLayers && !oldLayers->next() && newLayers && !newLayers->next() && (oldLayers->image() == newLayers->image())) | |
return; | |
// Go through the new layers and addClients first, to avoid removing all clients of an image. | |
for (const FillLayer* currNew = newLayers; currNew; currNew = currNew->next()) { | |
if (currNew->image()) | |
currNew->image()->addClient(this); | |
} | |
for (const FillLayer* currOld = oldLayers; currOld; currOld = currOld->next()) { | |
if (currOld->image()) | |
currOld->image()->removeClient(this); | |
} | |
} | |
void RenderObject::updateImage(StyleImage* oldImage, StyleImage* newImage) | |
{ | |
if (oldImage != newImage) { | |
if (oldImage) | |
oldImage->removeClient(this); | |
if (newImage) | |
newImage->addClient(this); | |
} | |
} | |
IntRect RenderObject::viewRect() const | |
{ | |
return view()->viewRect(); | |
} | |
FloatPoint RenderObject::localToAbsolute(FloatPoint localPoint, bool fixed, bool useTransforms) const | |
{ | |
TransformState transformState(TransformState::ApplyTransformDirection, localPoint); | |
mapLocalToContainer(0, fixed, useTransforms, transformState); | |
transformState.flatten(); | |
return transformState.lastPlanarPoint(); | |
} | |
FloatPoint RenderObject::absoluteToLocal(FloatPoint containerPoint, bool fixed, bool useTransforms) const | |
{ | |
TransformState transformState(TransformState::UnapplyInverseTransformDirection, containerPoint); | |
mapAbsoluteToLocalPoint(fixed, useTransforms, transformState); | |
transformState.flatten(); | |
return transformState.lastPlanarPoint(); | |
} | |
void RenderObject::mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed, bool useTransforms, TransformState& transformState) const | |
{ | |
if (repaintContainer == this) | |
return; | |
RenderObject* o = parent(); | |
if (!o) | |
return; | |
IntSize columnOffset; | |
o->adjustForColumns(columnOffset, roundedIntPoint(transformState.mappedPoint())); | |
if (!columnOffset.isZero()) | |
transformState.move(columnOffset); | |
if (o->hasOverflowClip()) | |
transformState.move(-toRenderBox(o)->layer()->scrolledContentOffset()); | |
o->mapLocalToContainer(repaintContainer, fixed, useTransforms, transformState); | |
} | |
void RenderObject::mapAbsoluteToLocalPoint(bool fixed, bool useTransforms, TransformState& transformState) const | |
{ | |
RenderObject* o = parent(); | |
if (o) { | |
o->mapAbsoluteToLocalPoint(fixed, useTransforms, transformState); | |
if (o->hasOverflowClip()) | |
transformState.move(toRenderBox(o)->layer()->scrolledContentOffset()); | |
} | |
} | |
bool RenderObject::shouldUseTransformFromContainer(const RenderObject* containerObject) const | |
{ | |
#if ENABLE(3D_RENDERING) | |
// hasTransform() indicates whether the object has transform, transform-style or perspective. We just care about transform, | |
// so check the layer's transform directly. | |
return (hasLayer() && toRenderBoxModelObject(this)->layer()->transform()) || (containerObject && containerObject->style()->hasPerspective()); | |
#else | |
UNUSED_PARAM(containerObject); | |
return hasTransform(); | |
#endif | |
} | |
void RenderObject::getTransformFromContainer(const RenderObject* containerObject, const IntSize& offsetInContainer, TransformationMatrix& transform) const | |
{ | |
transform.makeIdentity(); | |
transform.translate(offsetInContainer.width(), offsetInContainer.height()); | |
RenderLayer* layer; | |
if (hasLayer() && (layer = toRenderBoxModelObject(this)->layer()) && layer->transform()) | |
transform.multLeft(layer->currentTransform()); | |
#if ENABLE(3D_RENDERING) | |
if (containerObject && containerObject->hasLayer() && containerObject->style()->hasPerspective()) { | |
// Perpsective on the container affects us, so we have to factor it in here. | |
ASSERT(containerObject->hasLayer()); | |
FloatPoint perspectiveOrigin = toRenderBox(containerObject)->layer()->perspectiveOrigin(); | |
TransformationMatrix perspectiveMatrix; | |
perspectiveMatrix.applyPerspective(containerObject->style()->perspective()); | |
transform.translateRight3d(-perspectiveOrigin.x(), -perspectiveOrigin.y(), 0); | |
transform.multiply(perspectiveMatrix); | |
transform.translateRight3d(perspectiveOrigin.x(), perspectiveOrigin.y(), 0); | |
} | |
#else | |
UNUSED_PARAM(containerObject); | |
#endif | |
} | |
FloatQuad RenderObject::localToContainerQuad(const FloatQuad& localQuad, RenderBoxModelObject* repaintContainer, bool fixed) const | |
{ | |
// Track the point at the center of the quad's bounding box. As mapLocalToContainer() calls offsetFromContainer(), | |
// it will use that point as the reference point to decide which column's transform to apply in multiple-column blocks. | |
TransformState transformState(TransformState::ApplyTransformDirection, localQuad.boundingBox().center(), &localQuad); | |
mapLocalToContainer(repaintContainer, fixed, true, transformState); | |
transformState.flatten(); | |
return transformState.lastPlanarQuad(); | |
} | |
IntSize RenderObject::offsetFromContainer(RenderObject* o, const IntPoint& point) const | |
{ | |
ASSERT(o == container()); | |
IntSize offset; | |
o->adjustForColumns(offset, point); | |
if (o->hasOverflowClip()) | |
offset -= toRenderBox(o)->layer()->scrolledContentOffset(); | |
return offset; | |
} | |
IntSize RenderObject::offsetFromAncestorContainer(RenderObject* container) const | |
{ | |
IntSize offset; | |
IntPoint referencePoint; | |
const RenderObject* currContainer = this; | |
do { | |
RenderObject* nextContainer = currContainer->container(); | |
ASSERT(nextContainer); // This means we reached the top without finding container. | |
if (!nextContainer) | |
break; | |
ASSERT(!currContainer->hasTransform()); | |
IntSize currentOffset = currContainer->offsetFromContainer(nextContainer, referencePoint); | |
offset += currentOffset; | |
referencePoint.move(currentOffset); | |
currContainer = nextContainer; | |
} while (currContainer != container); | |
return offset; | |
} | |
IntRect RenderObject::localCaretRect(InlineBox*, int, int* extraWidthToEndOfLine) | |
{ | |
if (extraWidthToEndOfLine) | |
*extraWidthToEndOfLine = 0; | |
return IntRect(); | |
} | |
RenderView* RenderObject::view() const | |
{ | |
return toRenderView(document()->renderer()); | |
} | |
bool RenderObject::isRooted(RenderView** view) | |
{ | |
RenderObject* o = this; | |
while (o->parent()) | |
o = o->parent(); | |
if (!o->isRenderView()) | |
return false; | |
if (view) | |
*view = toRenderView(o); | |
return true; | |
} | |
bool RenderObject::hasOutlineAnnotation() const | |
{ | |
return node() && node()->isLink() && document()->printing(); | |
} | |
RenderObject* RenderObject::container(RenderBoxModelObject* repaintContainer, bool* repaintContainerSkipped) const | |
{ | |
if (repaintContainerSkipped) | |
*repaintContainerSkipped = false; | |
// This method is extremely similar to containingBlock(), but with a few notable | |
// exceptions. | |
// (1) It can be used on orphaned subtrees, i.e., it can be called safely even when | |
// the object is not part of the primary document subtree yet. | |
// (2) For normal flow elements, it just returns the parent. | |
// (3) For absolute positioned elements, it will return a relative positioned inline. | |
// containingBlock() simply skips relpositioned inlines and lets an enclosing block handle | |
// the layout of the positioned object. This does mean that calcAbsoluteHorizontal and | |
// calcAbsoluteVertical have to use container(). | |
RenderObject* o = parent(); | |
if (isText()) | |
return o; | |
EPosition pos = m_style->position(); | |
if (pos == FixedPosition) { | |
// container() can be called on an object that is not in the | |
// tree yet. We don't call view() since it will assert if it | |
// can't get back to the canvas. Instead we just walk as high up | |
// as we can. If we're in the tree, we'll get the root. If we | |
// aren't we'll get the root of our little subtree (most likely | |
// we'll just return 0). | |
// FIXME: The definition of view() has changed to not crawl up the render tree. It might | |
// be safe now to use it. | |
while (o && o->parent() && !(o->hasTransform() && o->isRenderBlock())) { | |
if (repaintContainerSkipped && o == repaintContainer) | |
*repaintContainerSkipped = true; | |
o = o->parent(); | |
} | |
} else if (pos == AbsolutePosition) { | |
// Same goes here. We technically just want our containing block, but | |
// we may not have one if we're part of an uninstalled subtree. We'll | |
// climb as high as we can though. | |
while (o && o->style()->position() == StaticPosition && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) { | |
if (repaintContainerSkipped && o == repaintContainer) | |
*repaintContainerSkipped = true; | |
o = o->parent(); | |
} | |
} | |
return o; | |
} | |
bool RenderObject::isSelectionBorder() const | |
{ | |
SelectionState st = selectionState(); | |
return st == SelectionStart || st == SelectionEnd || st == SelectionBoth; | |
} | |
void RenderObject::destroy() | |
{ | |
// Destroy any leftover anonymous children. | |
RenderObjectChildList* children = virtualChildren(); | |
if (children) | |
children->destroyLeftoverChildren(); | |
// If this renderer is being autoscrolled, stop the autoscroll timer | |
// FIXME: RenderObject::destroy should not get called with a renderer whose document | |
// has a null frame, so we assert this. However, we don't want release builds to crash which is why we | |
// check that the frame is not null. | |
ASSERT(document()->frame()); | |
if (document()->frame() && document()->frame()->eventHandler()->autoscrollRenderer() == this) | |
document()->frame()->eventHandler()->stopAutoscrollTimer(true); | |
if (m_hasCounterNodeMap) | |
RenderCounter::destroyCounterNodes(this); | |
if (AXObjectCache::accessibilityEnabled()) { | |
document()->axObjectCache()->childrenChanged(this->parent()); | |
document()->axObjectCache()->remove(this); | |
} | |
animation()->cancelAnimations(this); | |
// By default no ref-counting. RenderWidget::destroy() doesn't call | |
// this function because it needs to do ref-counting. If anything | |
// in this function changes, be sure to fix RenderWidget::destroy() as well. | |
remove(); | |
// FIXME: Would like to do this in RenderBoxModelObject, but the timing is so complicated that this can't easily | |
// be moved into RenderBoxModelObject::destroy. | |
if (hasLayer()) { | |
setHasLayer(false); | |
toRenderBoxModelObject(this)->destroyLayer(); | |
} | |
arenaDelete(renderArena(), this); | |
} | |
void RenderObject::arenaDelete(RenderArena* arena, void* base) | |
{ | |
if (m_style) { | |
for (const FillLayer* bgLayer = m_style->backgroundLayers(); bgLayer; bgLayer = bgLayer->next()) { | |
if (StyleImage* backgroundImage = bgLayer->image()) | |
backgroundImage->removeClient(this); | |
} | |
for (const FillLayer* maskLayer = m_style->maskLayers(); maskLayer; maskLayer = maskLayer->next()) { | |
if (StyleImage* maskImage = maskLayer->image()) | |
maskImage->removeClient(this); | |
} | |
if (StyleImage* borderImage = m_style->borderImage().image()) | |
borderImage->removeClient(this); | |
if (StyleImage* maskBoxImage = m_style->maskBoxImage().image()) | |
maskBoxImage->removeClient(this); | |
} | |
#ifndef NDEBUG | |
void* savedBase = baseOfRenderObjectBeingDeleted; | |
baseOfRenderObjectBeingDeleted = base; | |
#endif | |
delete this; | |
#ifndef NDEBUG | |
baseOfRenderObjectBeingDeleted = savedBase; | |
#endif | |
// Recover the size left there for us by operator delete and free the memory. | |
arena->free(*(size_t*)base, base); | |
} | |
VisiblePosition RenderObject::positionForCoordinates(int x, int y) | |
{ | |
return positionForPoint(IntPoint(x, y)); | |
} | |
VisiblePosition RenderObject::positionForPoint(const IntPoint&) | |
{ | |
return createVisiblePosition(caretMinOffset(), DOWNSTREAM); | |
} | |
void RenderObject::updateDragState(bool dragOn) | |
{ | |
bool valueChanged = (dragOn != m_isDragging); | |
m_isDragging = dragOn; | |
if (valueChanged && style()->affectedByDragRules()) | |
node()->setNeedsStyleRecalc(); | |
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) | |
curr->updateDragState(dragOn); | |
} | |
bool RenderObject::hitTest(const HitTestRequest& request, HitTestResult& result, const IntPoint& point, int tx, int ty, HitTestFilter hitTestFilter) | |
{ | |
bool inside = false; | |
if (hitTestFilter != HitTestSelf) { | |
// First test the foreground layer (lines and inlines). | |
inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestForeground); | |
// Test floats next. | |
if (!inside) | |
inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestFloat); | |
// Finally test to see if the mouse is in the background (within a child block's background). | |
if (!inside) | |
inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestChildBlockBackgrounds); | |
} | |
// See if the mouse is inside us but not any of our descendants | |
if (hitTestFilter != HitTestDescendants && !inside) | |
inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestBlockBackground); | |
return inside; | |
} | |
void RenderObject::updateHitTestResult(HitTestResult& result, const IntPoint& point) | |
{ | |
if (result.innerNode()) | |
return; | |
Node* n = node(); | |
if (n) { | |
result.setInnerNode(n); | |
if (!result.innerNonSharedNode()) | |
result.setInnerNonSharedNode(n); | |
result.setLocalPoint(point); | |
} | |
} | |
bool RenderObject::nodeAtPoint(const HitTestRequest&, HitTestResult&, int /*x*/, int /*y*/, int /*tx*/, int /*ty*/, HitTestAction) | |
{ | |
return false; | |
} | |
int RenderObject::lineHeight(bool firstLine, bool /*isRootLineBox*/) const | |
{ | |
return style(firstLine)->computedLineHeight(); | |
} | |
int RenderObject::baselinePosition(bool firstLine, bool isRootLineBox) const | |
{ | |
const Font& f = style(firstLine)->font(); | |
return f.ascent() + (lineHeight(firstLine, isRootLineBox) - f.height()) / 2; | |
} | |
void RenderObject::scheduleRelayout() | |
{ | |
if (isRenderView()) { | |
FrameView* view = toRenderView(this)->frameView(); | |
if (view) | |
view->scheduleRelayout(); | |
} else if (parent()) { | |
FrameView* v = view() ? view()->frameView() : 0; | |
if (v) | |
v->scheduleRelayoutOfSubtree(this); | |
} | |
} | |
void RenderObject::layout() | |
{ | |
ASSERT(needsLayout()); | |
RenderObject* child = firstChild(); | |
while (child) { | |
child->layoutIfNeeded(); | |
ASSERT(!child->needsLayout()); | |
child = child->nextSibling(); | |
} | |
setNeedsLayout(false); | |
} | |
PassRefPtr<RenderStyle> RenderObject::uncachedFirstLineStyle(RenderStyle* style) const | |
{ | |
if (!document()->usesFirstLineRules()) | |
return 0; | |
ASSERT(!isText()); | |
RefPtr<RenderStyle> result; | |
if (isBlockFlow()) { | |
if (RenderBlock* firstLineBlock = this->firstLineBlock()) | |
result = firstLineBlock->getUncachedPseudoStyle(FIRST_LINE, style, firstLineBlock == this ? style : 0); | |
} else if (!isAnonymous() && isRenderInline()) { | |
RenderStyle* parentStyle = parent()->firstLineStyle(); | |
if (parentStyle != parent()->style()) | |
result = getUncachedPseudoStyle(FIRST_LINE_INHERITED, parentStyle, style); | |
} | |
return result.release(); | |
} | |
RenderStyle* RenderObject::firstLineStyleSlowCase() const | |
{ | |
ASSERT(document()->usesFirstLineRules()); | |
RenderStyle* style = m_style.get(); | |
const RenderObject* renderer = isText() ? parent() : this; | |
if (renderer->isBlockFlow()) { | |
if (RenderBlock* firstLineBlock = renderer->firstLineBlock()) | |
style = firstLineBlock->getCachedPseudoStyle(FIRST_LINE, style); | |
} else if (!renderer->isAnonymous() && renderer->isRenderInline()) { | |
RenderStyle* parentStyle = renderer->parent()->firstLineStyle(); | |
if (parentStyle != renderer->parent()->style()) { | |
// A first-line style is in effect. Cache a first-line style for ourselves. | |
style->setHasPseudoStyle(FIRST_LINE_INHERITED); | |
style = renderer->getCachedPseudoStyle(FIRST_LINE_INHERITED, parentStyle); | |
} | |
} | |
return style; | |
} | |
RenderStyle* RenderObject::getCachedPseudoStyle(PseudoId pseudo, RenderStyle* parentStyle) const | |
{ | |
if (pseudo < FIRST_INTERNAL_PSEUDOID && !style()->hasPseudoStyle(pseudo)) | |
return 0; | |
RenderStyle* cachedStyle = style()->getCachedPseudoStyle(pseudo); | |
if (cachedStyle) | |
return cachedStyle; | |
RefPtr<RenderStyle> result = getUncachedPseudoStyle(pseudo, parentStyle); | |
if (result) | |
return style()->addCachedPseudoStyle(result.release()); | |
return 0; | |
} | |
PassRefPtr<RenderStyle> RenderObject::getUncachedPseudoStyle(PseudoId pseudo, RenderStyle* parentStyle, RenderStyle* ownStyle) const | |
{ | |
if (pseudo < FIRST_INTERNAL_PSEUDOID && !ownStyle && !style()->hasPseudoStyle(pseudo)) | |
return 0; | |
if (!parentStyle) { | |
ASSERT(!ownStyle); | |
parentStyle = style(); | |
} | |
Node* n = node(); | |
while (n && !n->isElementNode()) | |
n = n->parentNode(); | |
if (!n) | |
return 0; | |
RefPtr<RenderStyle> result; | |
if (pseudo == FIRST_LINE_INHERITED) { | |
result = document()->styleSelector()->styleForElement(static_cast<Element*>(n), parentStyle, false); | |
result->setStyleType(FIRST_LINE_INHERITED); | |
} else | |
result = document()->styleSelector()->pseudoStyleForElement(pseudo, static_cast<Element*>(n), parentStyle); | |
return result.release(); | |
} | |
static Color decorationColor(RenderStyle* style) | |
{ | |
Color result; | |
if (style->textStrokeWidth() > 0) { | |
// Prefer stroke color if possible but not if it's fully transparent. | |
result = style->textStrokeColor(); | |
if (!result.isValid()) | |
result = style->color(); | |
if (result.alpha()) | |
return result; | |
} | |
result = style->textFillColor(); | |
if (!result.isValid()) | |
result = style->color(); | |
return result; | |
} | |
void RenderObject::getTextDecorationColors(int decorations, Color& underline, Color& overline, | |
Color& linethrough, bool quirksMode) | |
{ | |
RenderObject* curr = this; | |
do { | |
int currDecs = curr->style()->textDecoration(); | |
if (currDecs) { | |
if (currDecs & UNDERLINE) { | |
decorations &= ~UNDERLINE; | |
underline = decorationColor(curr->style()); | |
} | |
if (currDecs & OVERLINE) { | |
decorations &= ~OVERLINE; | |
overline = decorationColor(curr->style()); | |
} | |
if (currDecs & LINE_THROUGH) { | |
decorations &= ~LINE_THROUGH; | |
linethrough = decorationColor(curr->style()); | |
} | |
} | |
curr = curr->parent(); | |
if (curr && curr->isRenderBlock() && toRenderBlock(curr)->inlineContinuation()) | |
curr = toRenderBlock(curr)->inlineContinuation(); | |
} while (curr && decorations && (!quirksMode || !curr->node() || | |
(!curr->node()->hasTagName(aTag) && !curr->node()->hasTagName(fontTag)))); | |
// If we bailed out, use the element we bailed out at (typically a <font> or <a> element). | |
if (decorations && curr) { | |
if (decorations & UNDERLINE) | |
underline = decorationColor(curr->style()); | |
if (decorations & OVERLINE) | |
overline = decorationColor(curr->style()); | |
if (decorations & LINE_THROUGH) | |
linethrough = decorationColor(curr->style()); | |
} | |
} | |
#if ENABLE(DASHBOARD_SUPPORT) | |
void RenderObject::addDashboardRegions(Vector<DashboardRegionValue>& regions) | |
{ | |
// Convert the style regions to absolute coordinates. | |
if (style()->visibility() != VISIBLE || !isBox()) | |
return; | |
RenderBox* box = toRenderBox(this); | |
const Vector<StyleDashboardRegion>& styleRegions = style()->dashboardRegions(); | |
unsigned i, count = styleRegions.size(); | |
for (i = 0; i < count; i++) { | |
StyleDashboardRegion styleRegion = styleRegions[i]; | |
int w = box->width(); | |
int h = box->height(); | |
DashboardRegionValue region; | |
region.label = styleRegion.label; | |
region.bounds = IntRect(styleRegion.offset.left().value(), | |
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; | |
region.clip = region.bounds; | |
computeAbsoluteRepaintRect(region.clip); | |
if (region.clip.height() < 0) { | |
region.clip.setHeight(0); | |
region.clip.setWidth(0); | |
} | |
FloatPoint absPos = localToAbsolute(); | |
region.bounds.setX(absPos.x() + styleRegion.offset.left().value()); | |
region.bounds.setY(absPos.y() + styleRegion.offset.top().value()); | |
if (document()->frame()) { | |
float pageScaleFactor = document()->frame()->page()->chrome()->scaleFactor(); | |
if (pageScaleFactor != 1.0f) { | |
region.bounds.scale(pageScaleFactor); | |
region.clip.scale(pageScaleFactor); | |
} | |
} | |
regions.append(region); | |
} | |
} | |
void RenderObject::collectDashboardRegions(Vector<DashboardRegionValue>& regions) | |
{ | |
// RenderTexts don't have their own style, they just use their parent's style, | |
// so we don't want to include them. | |
if (isText()) | |
return; | |
addDashboardRegions(regions); | |
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) | |
curr->collectDashboardRegions(regions); | |
} | |
#endif | |
bool RenderObject::willRenderImage(CachedImage*) | |
{ | |
// Without visibility we won't render (and therefore don't care about animation). | |
if (style()->visibility() != VISIBLE) | |
return false; | |
// If we're not in a window (i.e., we're dormant from being put in the b/f cache or in a background tab) | |
// then we don't want to render either. | |
return !document()->inPageCache() && !document()->view()->isOffscreen(); | |
} | |
int RenderObject::maximalOutlineSize(PaintPhase p) const | |
{ | |
if (p != PaintPhaseOutline && p != PaintPhaseSelfOutline && p != PaintPhaseChildOutlines) | |
return 0; | |
return toRenderView(document()->renderer())->maximalOutlineSize(); | |
} | |
int RenderObject::caretMinOffset() const | |
{ | |
return 0; | |
} | |
int RenderObject::caretMaxOffset() const | |
{ | |
if (isReplaced()) | |
return node() ? max(1U, node()->childNodeCount()) : 1; | |
if (isHR()) | |
return 1; | |
return 0; | |
} | |
unsigned RenderObject::caretMaxRenderedOffset() const | |
{ | |
return 0; | |
} | |
int RenderObject::previousOffset(int current) const | |
{ | |
return current - 1; | |
} | |
int RenderObject::previousOffsetForBackwardDeletion(int current) const | |
{ | |
return current - 1; | |
} | |
int RenderObject::nextOffset(int current) const | |
{ | |
return current + 1; | |
} | |
void RenderObject::adjustRectForOutlineAndShadow(IntRect& rect) const | |
{ | |
int outlineSize = outlineStyleForRepaint()->outlineSize(); | |
if (ShadowData* boxShadow = style()->boxShadow()) { | |
int shadowLeft = 0; | |
int shadowRight = 0; | |
int shadowTop = 0; | |
int shadowBottom = 0; | |
do { | |
if (boxShadow->style == Normal) { | |
shadowLeft = min(boxShadow->x - boxShadow->blur - boxShadow->spread - outlineSize, shadowLeft); | |
shadowRight = max(boxShadow->x + boxShadow->blur + boxShadow->spread + outlineSize, shadowRight); | |
shadowTop = min(boxShadow->y - boxShadow->blur - boxShadow->spread - outlineSize, shadowTop); | |
shadowBottom = max(boxShadow->y + boxShadow->blur + boxShadow->spread + outlineSize, shadowBottom); | |
} | |
boxShadow = boxShadow->next; | |
} while (boxShadow); | |
rect.move(shadowLeft, shadowTop); | |
rect.setWidth(rect.width() - shadowLeft + shadowRight); | |
rect.setHeight(rect.height() - shadowTop + shadowBottom); | |
} else | |
rect.inflate(outlineSize); | |
} | |
AnimationController* RenderObject::animation() const | |
{ | |
return document()->frame()->animation(); | |
} | |
void RenderObject::imageChanged(CachedImage* image, const IntRect* rect) | |
{ | |
imageChanged(static_cast<WrappedImagePtr>(image), rect); | |
} | |
RenderBoxModelObject* RenderObject::offsetParent() const | |
{ | |
// If any of the following holds true return null and stop this algorithm: | |
// A is the root element. | |
// A is the HTML body element. | |
// The computed value of the position property for element A is fixed. | |
if (isRoot() || isBody() || (isPositioned() && style()->position() == FixedPosition)) | |
return 0; | |
// If A is an area HTML element which has a map HTML element somewhere in the ancestor | |
// chain return the nearest ancestor map HTML element and stop this algorithm. | |
// FIXME: Implement! | |
// Return the nearest ancestor element of A for which at least one of the following is | |
// true and stop this algorithm if such an ancestor is found: | |
// * The computed value of the position property is not static. | |
// * It is the HTML body element. | |
// * The computed value of the position property of A is static and the ancestor | |
// is one of the following HTML elements: td, th, or table. | |
// * Our own extension: if there is a difference in the effective zoom | |
bool skipTables = isPositioned() || isRelPositioned(); | |
float currZoom = style()->effectiveZoom(); | |
RenderObject* curr = parent(); | |
while (curr && (!curr->node() || | |
(!curr->isPositioned() && !curr->isRelPositioned() && !curr->isBody()))) { | |
Node* element = curr->node(); | |
if (!skipTables && element) { | |
bool isTableElement = element->hasTagName(tableTag) || | |
element->hasTagName(tdTag) || | |
element->hasTagName(thTag); | |
#if ENABLE(WML) | |
if (!isTableElement && element->isWMLElement()) | |
isTableElement = element->hasTagName(WMLNames::tableTag) || | |
element->hasTagName(WMLNames::tdTag); | |
#endif | |
if (isTableElement) | |
break; | |
} | |
float newZoom = curr->style()->effectiveZoom(); | |
if (currZoom != newZoom) | |
break; | |
currZoom = newZoom; | |
curr = curr->parent(); | |
} | |
return curr && curr->isBoxModelObject() ? toRenderBoxModelObject(curr) : 0; | |
} | |
VisiblePosition RenderObject::createVisiblePosition(int offset, EAffinity affinity) | |
{ | |
// If this is a non-anonymous renderer in an editable area, then it's simple. | |
if (Node* node = this->node()) { | |
if (!node->isContentEditable()) { | |
// If it can be found, we prefer a visually equivalent position that is editable. | |
Position position(node, offset); | |
Position candidate = position.downstream(Position::CanCrossEditingBoundary); | |
if (candidate.node()->isContentEditable()) | |
return VisiblePosition(candidate, affinity); | |
candidate = position.upstream(Position::CanCrossEditingBoundary); | |
if (candidate.node()->isContentEditable()) | |
return VisiblePosition(candidate, affinity); | |
} | |
return VisiblePosition(node, offset, affinity); | |
} | |
// We don't want to cross the boundary between editable and non-editable | |
// regions of the document, but that is either impossible or at least | |
// extremely unlikely in any normal case because we stop as soon as we | |
// find a single non-anonymous renderer. | |
// Find a nearby non-anonymous renderer. | |
RenderObject* child = this; | |
while (RenderObject* parent = child->parent()) { | |
// Find non-anonymous content after. | |
RenderObject* renderer = child; | |
while ((renderer = renderer->nextInPreOrder(parent))) { | |
if (Node* node = renderer->node()) | |
return VisiblePosition(node, 0, DOWNSTREAM); | |
} | |
// Find non-anonymous content before. | |
renderer = child; | |
while ((renderer = renderer->previousInPreOrder())) { | |
if (renderer == parent) | |
break; | |
if (Node* node = renderer->node()) | |
return VisiblePosition(lastDeepEditingPositionForNode(node), DOWNSTREAM); | |
} | |
// Use the parent itself unless it too is anonymous. | |
if (Node* node = parent->node()) | |
return VisiblePosition(node, 0, DOWNSTREAM); | |
// Repeat at the next level up. | |
child = parent; | |
} | |
// Everything was anonymous. Give up. | |
return VisiblePosition(); | |
} | |
VisiblePosition RenderObject::createVisiblePosition(const Position& position) | |
{ | |
if (position.isNotNull()) | |
return VisiblePosition(position); | |
ASSERT(!node()); | |
return createVisiblePosition(0, DOWNSTREAM); | |
} | |
#if ENABLE(SVG) | |
const SVGRenderBase* RenderObject::toSVGRenderBase() const | |
{ | |
ASSERT_NOT_REACHED(); | |
return 0; | |
} | |
RenderSVGResource* RenderObject::toRenderSVGResource() | |
{ | |
ASSERT_NOT_REACHED(); | |
return 0; | |
} | |
FloatRect RenderObject::objectBoundingBox() const | |
{ | |
ASSERT_NOT_REACHED(); | |
return FloatRect(); | |
} | |
// Returns the smallest rectangle enclosing all of the painted content | |
// respecting clipping, masking, filters, opacity, stroke-width and markers | |
FloatRect RenderObject::repaintRectInLocalCoordinates() const | |
{ | |
ASSERT_NOT_REACHED(); | |
return FloatRect(); | |
} | |
AffineTransform RenderObject::localTransform() const | |
{ | |
static const AffineTransform identity; | |
return identity; | |
} | |
const AffineTransform& RenderObject::localToParentTransform() const | |
{ | |
static const AffineTransform identity; | |
return identity; | |
} | |
bool RenderObject::nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint&, HitTestAction) | |
{ | |
ASSERT_NOT_REACHED(); | |
return false; | |
} | |
#endif // ENABLE(SVG) | |
} // namespace WebCore | |
#ifndef NDEBUG | |
void showTree(const WebCore::RenderObject* ro) | |
{ | |
if (ro) | |
ro->showTreeForThis(); | |
} | |
void showRenderTree(const WebCore::RenderObject* object1) | |
{ | |
showRenderTree(object1, 0); | |
} | |
void showRenderTree(const WebCore::RenderObject* object1, const WebCore::RenderObject* object2) | |
{ | |
if (object1) { | |
const WebCore::RenderObject* root = object1; | |
while (root->parent()) | |
root = root->parent(); | |
root->showRenderTreeAndMark(object1, "*", object2, "-", 0); | |
} | |
} | |
#endif |