RenderTextControl.h [plain text]
#ifndef RenderTextControl_h
#define RenderTextControl_h
#include "RenderBlock.h"
namespace WebCore {
class VisibleSelection;
class TextControlInnerElement;
class TextControlInnerTextElement;
class RenderTextControl : public RenderBlock {
public:
virtual ~RenderTextControl();
bool wasChangedSinceLastChangeEvent() const { return m_wasChangedSinceLastChangeEvent; }
void setChangedSinceLastChangeEvent(bool wasChangedSinceLastChangeEvent) { m_wasChangedSinceLastChangeEvent = wasChangedSinceLastChangeEvent; }
bool lastChangeWasUserEdit() const { return m_lastChangeWasUserEdit; }
void setLastChangeWasUserEdit(bool lastChangeWasUserEdit);
int selectionStart();
int selectionEnd();
void setSelectionStart(int);
void setSelectionEnd(int);
void select();
void setSelectionRange(int start, int end);
VisibleSelection selection(int start, int end) const;
virtual void subtreeHasChanged();
String text();
String textWithHardLineBreaks();
void selectionChanged(bool userTriggered);
VisiblePosition visiblePositionForIndex(int index);
int indexForVisiblePosition(const VisiblePosition&);
void updatePlaceholderVisibility(bool, bool);
protected:
RenderTextControl(Node*, bool);
int scrollbarThickness() const;
void adjustInnerTextStyle(const RenderStyle* startStyle, RenderStyle* textBlockStyle) const;
void setInnerTextValue(const String&);
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
void createSubtreeIfNeeded(TextControlInnerElement* innerBlock);
void hitInnerTextElement(HitTestResult&, int x, int y, int tx, int ty);
void forwardEvent(Event*);
int textBlockWidth() const;
int textBlockHeight() const;
float scaleEmToUnits(int x) const;
static bool hasValidAvgCharWidth(AtomicString family);
virtual float getAvgCharWidth(AtomicString family);
virtual int preferredContentWidth(float charWidth) const = 0;
virtual void adjustControlHeightBasedOnLineHeight(int lineHeight) = 0;
virtual void cacheSelection(int start, int end) = 0;
virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const = 0;
virtual RenderStyle* textBaseStyle() const = 0;
virtual void updateFromElement();
virtual void calcHeight();
friend class TextIterator;
HTMLElement* innerTextElement() const;
bool m_placeholderVisible;
private:
virtual const char* renderName() const { return "RenderTextControl"; }
virtual bool isTextControl() const { return true; }
virtual void calcPrefWidths();
virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
virtual bool canHaveChildren() const { return false; }
virtual bool avoidsFloats() const { return true; }
void setInnerTextStyle(PassRefPtr<RenderStyle>);
virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);
virtual bool canBeProgramaticallyScrolled(bool) const { return true; }
virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
String finishText(Vector<UChar>&) const;
bool m_wasChangedSinceLastChangeEvent;
bool m_lastChangeWasUserEdit;
RefPtr<TextControlInnerTextElement> m_innerText;
};
inline RenderTextControl* toRenderTextControl(RenderObject* object)
{
ASSERT(!object || object->isTextControl());
return static_cast<RenderTextControl*>(object);
}
inline const RenderTextControl* toRenderTextControl(const RenderObject* object)
{
ASSERT(!object || object->isTextControl());
return static_cast<const RenderTextControl*>(object);
}
void toRenderTextControl(const RenderTextControl*);
}
#endif // RenderTextControl_h