2 * Copyright (C) 2005 Apple Computer
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
21 #ifndef RenderButton_h
22 #define RenderButton_h
24 #include "HTMLNames.h"
25 #include "core/rendering/RenderFlexibleBox.h"
29 class RenderTextFragment;
31 // RenderButtons are just like normal flexboxes except that they will generate an anonymous block child.
32 // For inputs, they will also generate an anonymous RenderText and keep its style and content up
33 // to date as the button changes.
34 class RenderButton FINAL : public RenderFlexibleBox {
36 explicit RenderButton(Element*);
37 virtual ~RenderButton();
39 virtual const char* renderName() const OVERRIDE { return "RenderButton"; }
40 virtual bool isRenderButton() const OVERRIDE { return true; }
42 virtual bool canBeSelectionLeaf() const OVERRIDE { return node() && node()->rendererIsEditable(); }
43 virtual bool canCollapseAnonymousBlockChild() const OVERRIDE { return true; }
45 virtual void addChild(RenderObject* newChild, RenderObject *beforeChild = 0) OVERRIDE;
46 virtual void removeChild(RenderObject*) OVERRIDE;
47 virtual void removeLeftoverAnonymousBlock(RenderBlock*) OVERRIDE { }
48 virtual bool createsAnonymousWrapper() const OVERRIDE { return true; }
50 void setupInnerStyle(RenderStyle*);
52 // <button> should allow whitespace even though RenderFlexibleBox doesn't.
53 virtual bool canHaveWhitespaceChildren() const OVERRIDE { return true; }
55 virtual bool canHaveGeneratedChildren() const OVERRIDE;
56 virtual bool hasControlClip() const OVERRIDE { return true; }
57 virtual LayoutRect controlClipRect(const LayoutPoint&) const OVERRIDE;
59 virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode) const OVERRIDE;
62 virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle) OVERRIDE;
63 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
65 virtual bool hasLineIfEmpty() const OVERRIDE { return node() && node()->hasTagName(HTMLNames::inputTag); }
70 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderButton, isRenderButton());
72 } // namespace WebCore
74 #endif // RenderButton_h