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#ifndef AbstractInlineTextBox_h
#define AbstractInlineTextBox_h
#include "core/dom/Range.h"
#include "core/rendering/InlineTextBox.h"
#include "core/rendering/RenderText.h"
#include "wtf/HashMap.h"
#include "wtf/RefPtr.h"
namespace WebCore {
class InlineTextBox;
// High-level abstraction of InlineTextBox to allow the accessibility module to
// get information about InlineTextBoxes without tight coupling.
class AbstractInlineTextBox : public RefCounted<AbstractInlineTextBox> {
private:
AbstractInlineTextBox(RenderText* renderText, InlineTextBox* inlineTextBox)
: m_renderText(renderText)
, m_inlineTextBox(inlineTextBox)
{
}
static PassRefPtr<AbstractInlineTextBox> getOrCreate(RenderText*, InlineTextBox*);
static void willDestroy(InlineTextBox*);
friend class RenderText;
friend class InlineTextBox;
public:
struct WordBoundaries {
WordBoundaries(int startIndex, int endIndex) : startIndex(startIndex), endIndex(endIndex) { }
int startIndex;
int endIndex;
};
enum Direction {
LeftToRight,
RightToLeft,
TopToBottom,
BottomToTop
};
RenderText* renderText() const { return m_renderText; }
PassRefPtr<AbstractInlineTextBox> nextInlineTextBox() const;
LayoutRect bounds() const;
unsigned start() const;
unsigned len() const;
Direction direction() const;
void characterWidths(Vector<float>&) const;
void wordBoundaries(Vector<WordBoundaries>&) const;
String text() const;
private:
void detach();
// Weak ptrs; these are nulled when InlineTextBox::destroy() calls AbstractInlineTextBox::willDestroy.
RenderText* m_renderText;
InlineTextBox* m_inlineTextBox;
typedef HashMap<InlineTextBox*, RefPtr<AbstractInlineTextBox> > InlineToAbstractInlineTextBoxHashMap;
static InlineToAbstractInlineTextBoxHashMap* gAbstractInlineTextBoxMap;
};
} // namespace WebCore
#endif // AbstractInlineTextBox_h