#include "config.h"
#include "InlineBox.h"
#include "FontMetrics.h"
#include "Frame.h"
#include "HitTestResult.h"
#include "InlineFlowBox.h"
#include "Page.h"
#include "PaintInfo.h"
#include "RenderArena.h"
#include "RenderBlock.h"
#include "RootInlineBox.h"
#ifndef NDEBUG
#include <stdio.h>
#endif
using namespace std;
namespace WebCore {
struct SameSizeAsInlineBox {
virtual ~SameSizeAsInlineBox() { }
void* a[4];
FloatPoint b;
float c;
uint32_t d : 32;
#if !ASSERT_DISABLED
bool f;
#endif
};
COMPILE_ASSERT(sizeof(InlineBox) == sizeof(SameSizeAsInlineBox), InlineBox_size_guard);
#if !ASSERT_DISABLED
static bool inInlineBoxDetach;
#endif
#if !ASSERT_DISABLED
InlineBox::~InlineBox()
{
if (!m_hasBadParent && m_parent)
m_parent->setHasBadChildList();
}
#endif
void InlineBox::remove()
{
if (parent())
parent()->removeChild(this);
}
void InlineBox::destroy(RenderArena* renderArena)
{
#if !ASSERT_DISABLED
inInlineBoxDetach = true;
#endif
delete this;
#if !ASSERT_DISABLED
inInlineBoxDetach = false;
#endif
renderArena->free(*(size_t *)this, this);
}
void* InlineBox::operator new(size_t sz, RenderArena* renderArena)
{
return renderArena->allocate(sz);
}
void InlineBox::operator delete(void* ptr, size_t sz)
{
ASSERT(inInlineBoxDetach);
*(size_t *)ptr = sz;
}
#ifndef NDEBUG
const char* InlineBox::boxName() const
{
return "InlineBox";
}
void InlineBox::showTreeForThis() const
{
if (m_renderer)
m_renderer->showTreeForThis();
}
void InlineBox::showLineTreeForThis() const
{
if (m_renderer)
m_renderer->containingBlock()->showLineTreeAndMark(this, "*");
}
void InlineBox::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj, int depth) const
{
int printedCharacters = 0;
if (this == markedBox1)
printedCharacters += fprintf(stderr, "%s", markedLabel1);
if (this == markedBox2)
printedCharacters += fprintf(stderr, "%s", markedLabel2);
if (renderer() == obj)
printedCharacters += fprintf(stderr, "*");
for (; printedCharacters < depth * 2; printedCharacters++)
fputc(' ', stderr);
showBox(printedCharacters);
}
void InlineBox::showBox(int printedCharacters) const
{
printedCharacters += fprintf(stderr, "%s\t%p", boxName(), this);
for (; printedCharacters < showTreeCharacterOffset; printedCharacters++)
fputc(' ', stderr);
fprintf(stderr, "\t%s %p\n", renderer() ? renderer()->renderName() : "No Renderer", renderer());
}
#endif
float InlineBox::logicalHeight() const
{
if (hasVirtualLogicalHeight())
return virtualLogicalHeight();
if (renderer()->isText())
return m_bitfields.isText() ? renderer()->style(isFirstLineStyle())->fontMetrics().height() : 0;
if (renderer()->isBox() && parent())
return isHorizontal() ? toRenderBox(m_renderer)->height() : toRenderBox(m_renderer)->width();
ASSERT(isInlineFlowBox());
RenderBoxModelObject* flowObject = boxModelObject();
const FontMetrics& fontMetrics = renderer()->style(isFirstLineStyle())->fontMetrics();
float result = fontMetrics.height();
if (parent())
result += flowObject->borderAndPaddingLogicalHeight();
return result;
}
int InlineBox::baselinePosition(FontBaseline baselineType) const
{
return boxModelObject()->baselinePosition(baselineType, m_bitfields.firstLine(), isHorizontal() ? HorizontalLine : VerticalLine, PositionOnContainingLine);
}
LayoutUnit InlineBox::lineHeight() const
{
return boxModelObject()->lineHeight(m_bitfields.firstLine(), isHorizontal() ? HorizontalLine : VerticalLine, PositionOnContainingLine);
}
int InlineBox::caretMinOffset() const
{
return m_renderer->caretMinOffset();
}
int InlineBox::caretMaxOffset() const
{
return m_renderer->caretMaxOffset();
}
void InlineBox::dirtyLineBoxes()
{
markDirty();
for (InlineFlowBox* curr = parent(); curr && !curr->isDirty(); curr = curr->parent())
curr->markDirty();
}
void InlineBox::deleteLine(RenderArena* arena)
{
if (!m_bitfields.extracted() && m_renderer->isBox())
toRenderBox(m_renderer)->setInlineBoxWrapper(0);
destroy(arena);
}
void InlineBox::extractLine()
{
m_bitfields.setExtracted(true);
if (m_renderer->isBox())
toRenderBox(m_renderer)->setInlineBoxWrapper(0);
}
void InlineBox::attachLine()
{
m_bitfields.setExtracted(false);
if (m_renderer->isBox())
toRenderBox(m_renderer)->setInlineBoxWrapper(this);
}
void InlineBox::adjustPosition(float dx, float dy)
{
m_topLeft.move(dx, dy);
if (m_renderer->isReplaced())
toRenderBox(m_renderer)->move(dx, dy);
}
void InlineBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit , LayoutUnit )
{
if (!paintInfo.shouldPaintWithinRoot(renderer()) || (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection))
return;
LayoutPoint childPoint = paintOffset;
if (parent()->renderer()->style()->isFlippedBlocksWritingMode()) childPoint = renderer()->containingBlock()->flipForWritingModeForChild(toRenderBox(renderer()), childPoint);
bool preservePhase = paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip;
PaintInfo info(paintInfo);
info.phase = preservePhase ? paintInfo.phase : PaintPhaseBlockBackground;
renderer()->paint(info, childPoint);
if (!preservePhase) {
info.phase = PaintPhaseChildBlockBackgrounds;
renderer()->paint(info, childPoint);
info.phase = PaintPhaseFloat;
renderer()->paint(info, childPoint);
info.phase = PaintPhaseForeground;
renderer()->paint(info, childPoint);
info.phase = PaintPhaseOutline;
renderer()->paint(info, childPoint);
}
}
bool InlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit , LayoutUnit )
{
LayoutPoint childPoint = accumulatedOffset;
if (parent()->renderer()->style()->isFlippedBlocksWritingMode()) childPoint = renderer()->containingBlock()->flipForWritingModeForChild(toRenderBox(renderer()), childPoint);
return renderer()->hitTest(request, result, locationInContainer, childPoint);
}
const RootInlineBox* InlineBox::root() const
{
if (m_parent)
return m_parent->root();
ASSERT(isRootInlineBox());
return static_cast<const RootInlineBox*>(this);
}
RootInlineBox* InlineBox::root()
{
if (m_parent)
return m_parent->root();
ASSERT(isRootInlineBox());
return static_cast<RootInlineBox*>(this);
}
bool InlineBox::nextOnLineExists() const
{
if (!m_bitfields.determinedIfNextOnLineExists()) {
m_bitfields.setDeterminedIfNextOnLineExists(true);
if (!parent())
m_bitfields.setNextOnLineExists(false);
else if (nextOnLine())
m_bitfields.setNextOnLineExists(true);
else
m_bitfields.setNextOnLineExists(parent()->nextOnLineExists());
}
return m_bitfields.nextOnLineExists();
}
InlineBox* InlineBox::nextLeafChild() const
{
InlineBox* leaf = 0;
for (InlineBox* box = nextOnLine(); box && !leaf; box = box->nextOnLine())
leaf = box->isLeaf() ? box : toInlineFlowBox(box)->firstLeafChild();
if (!leaf && parent())
leaf = parent()->nextLeafChild();
return leaf;
}
InlineBox* InlineBox::prevLeafChild() const
{
InlineBox* leaf = 0;
for (InlineBox* box = prevOnLine(); box && !leaf; box = box->prevOnLine())
leaf = box->isLeaf() ? box : toInlineFlowBox(box)->lastLeafChild();
if (!leaf && parent())
leaf = parent()->prevLeafChild();
return leaf;
}
InlineBox* InlineBox::nextLeafChildIgnoringLineBreak() const
{
InlineBox* leaf = nextLeafChild();
if (leaf && leaf->isLineBreak())
return 0;
return leaf;
}
InlineBox* InlineBox::prevLeafChildIgnoringLineBreak() const
{
InlineBox* leaf = prevLeafChild();
if (leaf && leaf->isLineBreak())
return 0;
return leaf;
}
RenderObject::SelectionState InlineBox::selectionState()
{
return renderer()->selectionState();
}
bool InlineBox::canAccommodateEllipsis(bool ltr, int blockEdge, int ellipsisWidth) const
{
if (!m_renderer || !m_renderer->isReplaced())
return true;
IntRect boxRect(left(), 0, m_logicalWidth, 10);
IntRect ellipsisRect(ltr ? blockEdge - ellipsisWidth : blockEdge, 0, ellipsisWidth, 10);
return !(boxRect.intersects(ellipsisRect));
}
float InlineBox::placeEllipsisBox(bool, float, float, float, float& truncatedWidth, bool&)
{
truncatedWidth += logicalWidth();
return -1;
}
void InlineBox::clearKnownToHaveNoOverflow()
{
m_bitfields.setKnownToHaveNoOverflow(false);
if (parent() && parent()->knownToHaveNoOverflow())
parent()->clearKnownToHaveNoOverflow();
}
FloatPoint InlineBox::locationIncludingFlipping()
{
if (!renderer()->style()->isFlippedBlocksWritingMode())
return FloatPoint(x(), y());
RenderBlock* block = root()->block();
if (block->style()->isHorizontalWritingMode())
return FloatPoint(x(), block->height() - height() - y());
else
return FloatPoint(block->width() - width() - x(), y());
}
void InlineBox::flipForWritingMode(FloatRect& rect)
{
if (!renderer()->style()->isFlippedBlocksWritingMode())
return;
root()->block()->flipForWritingMode(rect);
}
FloatPoint InlineBox::flipForWritingMode(const FloatPoint& point)
{
if (!renderer()->style()->isFlippedBlocksWritingMode())
return point;
return root()->block()->flipForWritingMode(point);
}
void InlineBox::flipForWritingMode(LayoutRect& rect)
{
if (!renderer()->style()->isFlippedBlocksWritingMode())
return;
root()->block()->flipForWritingMode(rect);
}
LayoutPoint InlineBox::flipForWritingMode(const LayoutPoint& point)
{
if (!renderer()->style()->isFlippedBlocksWritingMode())
return point;
return root()->block()->flipForWritingMode(point);
}
}
#ifndef NDEBUG
void showTree(const WebCore::InlineBox* b)
{
if (b)
b->showTreeForThis();
}
void showLineTree(const WebCore::InlineBox* b)
{
if (b)
b->showLineTreeForThis();
}
#endif