Source/core/rendering/RenderTextControlMultiLine.h

/*
 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
 * Copyright (C) 2009 Apple Inc. All rights reserved.
 *
 * 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.
 *
 */

#ifndef RenderTextControlMultiLine_h
#define RenderTextControlMultiLine_h

#include "core/rendering/RenderTextControl.h"

namespace blink {

class HTMLTextAreaElement;

class RenderTextControlMultiLine final : public RenderTextControl {
public:
    RenderTextControlMultiLine(HTMLTextAreaElement*);
    virtual ~RenderTextControlMultiLine();

private:
    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectTextArea || RenderTextControl::isOfType(type); }

    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;

    virtual float getAvgCharWidth(AtomicString family) override;
    virtual LayoutUnit preferredContentLogicalWidth(float charWidth) const override;
    virtual LayoutUnit computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const override;
    // We override the two baseline functions because we want our baseline to be the bottom of our margin box.
    virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
    virtual int inlineBlockBaseline(LineDirectionMode) const override { return -1; }

    virtual PassRefPtr<RenderStyle> createInnerEditorStyle(const RenderStyle* startStyle) const override;
    virtual RenderObject* layoutSpecialExcludedChild(bool relayoutChildren, SubtreeLayoutScope&) override;
};

DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTextControlMultiLine, isTextArea());

}

#endif