1/*
2 * Copyright (C) 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "core/rendering/RenderReplica.h"
31
32#include "core/rendering/GraphicsContextAnnotator.h"
33#include "core/rendering/LayoutRectRecorder.h"
34#include "core/rendering/RenderLayer.h"
35
36namespace WebCore {
37
38RenderReplica::RenderReplica()
39    : RenderBox(0)
40{
41    // This is a hack. Replicas are synthetic, and don't pick up the attributes of the
42    // renderers being replicated, so they always report that they are inline, non-replaced.
43    // However, we need transforms to be applied to replicas for reflections, so have to pass
44    // the if (!isInline() || isReplaced()) check before setHasTransform().
45    setReplaced(true);
46}
47
48RenderReplica* RenderReplica::createAnonymous(Document* document)
49{
50    RenderReplica* renderer = new RenderReplica();
51    renderer->setDocumentForAnonymous(document);
52    return renderer;
53}
54
55RenderReplica::~RenderReplica()
56{
57}
58
59void RenderReplica::layout()
60{
61    LayoutRectRecorder recorder(*this);
62    setFrameRect(parentBox()->borderBoxRect());
63    updateLayerTransform();
64    clearNeedsLayout();
65}
66
67void RenderReplica::computePreferredLogicalWidths()
68{
69    m_minPreferredLogicalWidth = parentBox()->width();
70    m_maxPreferredLogicalWidth = m_minPreferredLogicalWidth;
71    clearPreferredLogicalWidthsDirty();
72}
73
74void RenderReplica::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
75{
76    ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this);
77
78    if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseMask)
79        return;
80
81    LayoutPoint adjustedPaintOffset = paintOffset + location();
82
83    if (paintInfo.phase == PaintPhaseForeground) {
84        // Turn around and paint the parent layer. Use temporary clipRects, so that the layer doesn't end up caching clip rects
85        // computing using the wrong rootLayer
86        RenderLayer* rootPaintingLayer = layer()->transform() ? layer()->parent() : layer()->enclosingTransformedAncestor();
87        LayerPaintingInfo paintingInfo(rootPaintingLayer, paintInfo.rect, PaintBehaviorNormal, LayoutSize(), 0, paintInfo.renderRegion);
88        PaintLayerFlags flags = PaintLayerHaveTransparency | PaintLayerAppliedTransform | PaintLayerTemporaryClipRects | PaintLayerPaintingReflection;
89        layer()->parent()->paintLayer(paintInfo.context, paintingInfo, flags);
90    } else if (paintInfo.phase == PaintPhaseMask)
91        paintMask(paintInfo, adjustedPaintOffset);
92}
93
94} // namespace WebCore
95