1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 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 RenderReplaced_h
23#define RenderReplaced_h
24
25#include "core/rendering/RenderBox.h"
26
27namespace blink {
28
29class RenderReplaced : public RenderBox {
30public:
31    RenderReplaced(Element*);
32    RenderReplaced(Element*, const LayoutSize& intrinsicSize);
33    virtual ~RenderReplaced();
34
35    virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred  = ComputeActual) const OVERRIDE;
36    virtual LayoutUnit computeReplacedLogicalHeight() const OVERRIDE;
37
38    bool hasReplacedLogicalHeight() const;
39    LayoutRect replacedContentRect(const LayoutSize* overriddenIntrinsicSize = 0) const;
40
41    virtual bool needsPreferredWidthsRecalculation() const OVERRIDE;
42
43    // These values are specified to be 300 and 150 pixels in the CSS 2.1 spec.
44    // http://www.w3.org/TR/CSS2/visudet.html#inline-replaced-width
45    static const int defaultWidth;
46    static const int defaultHeight;
47
48    virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE;
49
50protected:
51    virtual void willBeDestroyed() OVERRIDE;
52
53    virtual void layout() OVERRIDE;
54
55    virtual LayoutSize intrinsicSize() const OVERRIDE FINAL { return m_intrinsicSize; }
56    virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const OVERRIDE;
57
58    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE FINAL;
59
60    virtual LayoutUnit intrinsicContentLogicalHeight() const { return intrinsicLogicalHeight(); }
61
62    virtual LayoutUnit minimumReplacedHeight() const { return LayoutUnit(); }
63
64    virtual void setSelectionState(SelectionState) OVERRIDE FINAL;
65
66    bool isSelected() const;
67
68    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
69
70    void setIntrinsicSize(const LayoutSize& intrinsicSize) { m_intrinsicSize = intrinsicSize; }
71    virtual void intrinsicSizeChanged();
72
73    bool shouldPaint(PaintInfo&, const LayoutPoint&);
74    LayoutRect localSelectionRect(bool checkWhetherSelected = true) const; // This is in local coordinates, but it's a physical rect (so the top left corner is physical top left).
75    virtual RenderBox* embeddedContentBox() const { return 0; }
76
77private:
78    virtual const char* renderName() const OVERRIDE { return "RenderReplaced"; }
79
80    virtual bool canHaveChildren() const OVERRIDE { return false; }
81
82    virtual void computePreferredLogicalWidths() OVERRIDE FINAL;
83    virtual void paintReplaced(PaintInfo&, const LayoutPoint&) { }
84
85    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* = 0) const OVERRIDE;
86
87    virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL;
88
89    virtual bool canBeSelectionLeaf() const OVERRIDE { return true; }
90
91    virtual LayoutRect selectionRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer) const OVERRIDE FINAL;
92    void computeAspectRatioInformationForRenderBox(RenderBox*, FloatSize& constrainedSize, double& intrinsicRatio) const;
93
94    mutable LayoutSize m_intrinsicSize;
95};
96
97}
98
99#endif
100