RenderTextControlMultiLine.h   [plain text]

/*
 * 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.
 *
 */

#pragma once

#include "HTMLTextAreaElement.h"
#include "RenderTextControl.h"

namespace WebCore {

class RenderTextControlMultiLine final : public RenderTextControl {
    WTF_MAKE_ISO_ALLOCATED(RenderTextControlMultiLine);
public:
    RenderTextControlMultiLine(HTMLTextAreaElement&, RenderStyle&&);
    virtual ~RenderTextControlMultiLine();

    HTMLTextAreaElement& textAreaElement() const;

private:
    void willBeDestroyed() override;
    void element() const = delete;

    bool isTextArea() const override { return true; }

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

    float getAverageCharWidth() override;
    LayoutUnit preferredContentLogicalWidth(float charWidth) const override;
    LayoutUnit computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const override;
    int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;

    void layoutExcludedChildren(bool relayoutChildren) override;
};

inline RenderTextControlMultiLine* HTMLTextAreaElement::renderer() const
{
    return downcast<RenderTextControlMultiLine>(HTMLTextFormControlElement::renderer());
}

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTextControlMultiLine, isTextArea())