1/*
2 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
3 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#ifndef RenderTextControlMultiLine_h
23#define RenderTextControlMultiLine_h
24
25#include "core/rendering/RenderTextControl.h"
26
27namespace blink {
28
29class HTMLTextAreaElement;
30
31class RenderTextControlMultiLine FINAL : public RenderTextControl {
32public:
33    RenderTextControlMultiLine(HTMLTextAreaElement*);
34    virtual ~RenderTextControlMultiLine();
35
36private:
37    virtual bool isTextArea() const OVERRIDE { return true; }
38
39    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE;
40
41    virtual float getAvgCharWidth(AtomicString family) OVERRIDE;
42    virtual LayoutUnit preferredContentLogicalWidth(float charWidth) const OVERRIDE;
43    virtual LayoutUnit computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const OVERRIDE;
44    // We override the two baseline functions because we want our baseline to be the bottom of our margin box.
45    virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const OVERRIDE;
46    virtual int inlineBlockBaseline(LineDirectionMode) const OVERRIDE { return -1; }
47
48    virtual PassRefPtr<RenderStyle> createInnerEditorStyle(const RenderStyle* startStyle) const OVERRIDE;
49    virtual RenderObject* layoutSpecialExcludedChild(bool relayoutChildren, SubtreeLayoutScope&) OVERRIDE;
50};
51
52DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTextControlMultiLine, isTextArea());
53
54}
55
56#endif
57