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/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* (C) 2008 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.
*
*/
#pragma once
#include <WebCore/RenderBlockFlow.h>
#include <WebCore/RenderFlexibleBox.h>
#include <wtf/Platform.h>
namespace WebCore {
class TextControlInnerTextElement;
class HTMLTextFormControlElement;
class RenderTextControl : public RenderBlockFlow {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RenderTextControl);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RenderTextControl);
public:
virtual ~RenderTextControl();
WEBCORE_EXPORT HTMLTextFormControlElement& textFormControlElement() const;
WEBCORE_EXPORT Ref<HTMLTextFormControlElement> protectedTextFormControlElement() const;
#if PLATFORM(IOS_FAMILY)
bool canScroll() const;
WEBCORE_EXPORT int innerLineHeight() const;
#endif
protected:
RenderTextControl(Type, HTMLTextFormControlElement&, RenderStyle&&);
// This convenience function should not be made public because innerTextElement may outlive the render tree.
RefPtr<TextControlInnerTextElement> innerTextElement() const;
int scrollbarThickness() const;
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
void hitInnerTextElement(HitTestResult&, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset);
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(RelayoutChildren) override;
private:
void element() const = delete;
ASCIILiteral renderName() const override { return "RenderTextControl"_s; }
void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
void computePreferredLogicalWidths() override;
bool canHaveGeneratedChildren() const override { return false; }
void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) const override;
bool canBeProgramaticallyScrolled() const override { return true; }
};
// Renderer for our inner container, for <search> and others.
// We can't use RenderFlexibleBox directly, because flexboxes have a different
// baseline definition, and then inputs of different types wouldn't line up
// anymore.
class RenderTextControlInnerContainer final : public RenderFlexibleBox {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RenderTextControlInnerContainer);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RenderTextControlInnerContainer);
public:
RenderTextControlInnerContainer(Element&, RenderStyle&&);
virtual ~RenderTextControlInnerContainer();
std::optional<LayoutUnit> firstLineBaseline() const override { return RenderBlock::firstLineBaseline(); }
private:
bool isFlexibleBoxImpl() const override { return true; }
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTextControl, isRenderTextControl())
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTextControlInnerContainer, isRenderTextControlInnerContainer())
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