RenderTextControl.h [plain text]
#pragma once
#include "RenderBlockFlow.h"
#include "RenderFlexibleBox.h"
namespace WebCore {
class TextControlInnerTextElement;
class HTMLTextFormControlElement;
class RenderTextControl : public RenderBlockFlow {
WTF_MAKE_ISO_ALLOCATED(RenderTextControl);
public:
virtual ~RenderTextControl();
WEBCORE_EXPORT HTMLTextFormControlElement& textFormControlElement() const;
#if PLATFORM(IOS_FAMILY)
bool canScroll() const;
int innerLineHeight() const override;
#endif
protected:
RenderTextControl(HTMLTextFormControlElement&, RenderStyle&&);
RefPtr<TextControlInnerTextElement> innerTextElement() const;
int scrollbarThickness() const;
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
void hitInnerTextElement(HitTestResult&, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset);
int textBlockLogicalWidth() const;
int textBlockLogicalHeight() const;
float scaleEmToUnits(int x) const;
virtual float getAverageCharWidth();
virtual LayoutUnit preferredContentLogicalWidth(float charWidth) const = 0;
virtual LayoutUnit computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const = 0;
LogicalExtentComputedValues computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop) const override;
void layoutExcludedChildren(bool relayoutChildren) override;
private:
void element() const = delete;
const char* renderName() const override { return "RenderTextControl"; }
bool isTextControl() const final { return true; }
void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
void computePreferredLogicalWidths() override;
bool avoidsFloats() const override { return true; }
bool canHaveGeneratedChildren() const override { return false; }
void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) override;
bool canBeProgramaticallyScrolled() const override { return true; }
};
class RenderTextControlInnerContainer final : public RenderFlexibleBox {
WTF_MAKE_ISO_ALLOCATED(RenderTextControlInnerContainer);
public:
explicit RenderTextControlInnerContainer(Element& element, RenderStyle&& style)
: RenderFlexibleBox(element, WTFMove(style))
{ }
virtual ~RenderTextControlInnerContainer() = default;
int baselinePosition(FontBaseline baseline, bool firstLine, LineDirectionMode direction, LinePositionMode position) const override
{
return RenderBlock::baselinePosition(baseline, firstLine, direction, position);
}
Optional<int> firstLineBaseline() const override { return RenderBlock::firstLineBaseline(); }
Optional<int> inlineBlockBaseline(LineDirectionMode direction) const override { return RenderBlock::inlineBlockBaseline(direction); }
private:
bool isFlexibleBoxImpl() const override { return true; }
};
}
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTextControl, isTextControl())