1/*
2 * Copyright (C) 2011 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 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "TiledCoreAnimationDrawingAreaProxy.h"
28
29#if ENABLE(THREADED_SCROLLING)
30
31#import "ColorSpaceData.h"
32#import "DrawingAreaMessages.h"
33#import "DrawingAreaProxyMessages.h"
34#import "LayerTreeContext.h"
35#import "WebPageProxy.h"
36#import "WebProcessProxy.h"
37
38using namespace WebCore;
39
40namespace WebKit {
41
42PassOwnPtr<TiledCoreAnimationDrawingAreaProxy> TiledCoreAnimationDrawingAreaProxy::create(WebPageProxy* webPageProxy)
43{
44    return adoptPtr(new TiledCoreAnimationDrawingAreaProxy(webPageProxy));
45}
46
47TiledCoreAnimationDrawingAreaProxy::TiledCoreAnimationDrawingAreaProxy(WebPageProxy* webPageProxy)
48    : DrawingAreaProxy(DrawingAreaTypeTiledCoreAnimation, webPageProxy)
49    , m_isWaitingForDidUpdateGeometry(false)
50{
51}
52
53TiledCoreAnimationDrawingAreaProxy::~TiledCoreAnimationDrawingAreaProxy()
54{
55}
56
57void TiledCoreAnimationDrawingAreaProxy::deviceScaleFactorDidChange()
58{
59    m_webPageProxy->process()->send(Messages::DrawingArea::SetDeviceScaleFactor(m_webPageProxy->deviceScaleFactor()), m_webPageProxy->pageID());
60}
61
62void TiledCoreAnimationDrawingAreaProxy::visibilityDidChange()
63{
64    if (!m_webPageProxy->isViewVisible())
65        m_webPageProxy->process()->send(Messages::DrawingArea::SuspendPainting(), m_webPageProxy->pageID());
66    else
67        m_webPageProxy->process()->send(Messages::DrawingArea::ResumePainting(), m_webPageProxy->pageID());
68}
69
70void TiledCoreAnimationDrawingAreaProxy::layerHostingModeDidChange()
71{
72    m_webPageProxy->process()->send(Messages::DrawingArea::SetLayerHostingMode(m_webPageProxy->layerHostingMode()), m_webPageProxy->pageID());
73}
74
75void TiledCoreAnimationDrawingAreaProxy::sizeDidChange()
76{
77    if (!m_webPageProxy->isValid())
78        return;
79
80    // We only want one UpdateGeometry message in flight at once, so if we've already sent one but
81    // haven't yet received the reply we'll just return early here.
82    if (m_isWaitingForDidUpdateGeometry)
83        return;
84
85    sendUpdateGeometry();
86}
87
88void TiledCoreAnimationDrawingAreaProxy::waitForPossibleGeometryUpdate(double timeout)
89{
90    if (!m_isWaitingForDidUpdateGeometry)
91        return;
92
93    if (m_webPageProxy->process()->isLaunching())
94        return;
95
96    m_webPageProxy->process()->connection()->waitForAndDispatchImmediately<Messages::DrawingAreaProxy::DidUpdateGeometry>(m_webPageProxy->pageID(), timeout);
97}
98
99void TiledCoreAnimationDrawingAreaProxy::colorSpaceDidChange()
100{
101    m_webPageProxy->process()->send(Messages::DrawingArea::SetColorSpace(m_webPageProxy->colorSpace()), m_webPageProxy->pageID());
102}
103
104void TiledCoreAnimationDrawingAreaProxy::minimumLayoutSizeDidChange()
105{
106    if (!m_webPageProxy->isValid())
107        return;
108
109    // We only want one UpdateGeometry message in flight at once, so if we've already sent one but
110    // haven't yet received the reply we'll just return early here.
111    if (m_isWaitingForDidUpdateGeometry)
112        return;
113
114    sendUpdateGeometry();
115}
116
117void TiledCoreAnimationDrawingAreaProxy::enterAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext& layerTreeContext)
118{
119    m_webPageProxy->enterAcceleratedCompositingMode(layerTreeContext);
120}
121
122void TiledCoreAnimationDrawingAreaProxy::exitAcceleratedCompositingMode(uint64_t backingStoreStateID, const UpdateInfo&)
123{
124    // This should never be called.
125    ASSERT_NOT_REACHED();
126}
127
128void TiledCoreAnimationDrawingAreaProxy::updateAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext& layerTreeContext)
129{
130    m_webPageProxy->updateAcceleratedCompositingMode(layerTreeContext);
131}
132
133void TiledCoreAnimationDrawingAreaProxy::didUpdateGeometry()
134{
135    ASSERT(m_isWaitingForDidUpdateGeometry);
136
137    m_isWaitingForDidUpdateGeometry = false;
138
139    IntSize minimumLayoutSize = m_webPageProxy->minimumLayoutSize();
140
141    // If the WKView was resized while we were waiting for a DidUpdateGeometry reply from the web process,
142    // we need to resend the new size here.
143    if (m_lastSentSize != m_size || m_lastSentLayerPosition != m_layerPosition || m_lastSentMinimumLayoutSize != minimumLayoutSize)
144        sendUpdateGeometry();
145}
146
147void TiledCoreAnimationDrawingAreaProxy::intrinsicContentSizeDidChange(const IntSize& newIntrinsicContentSize)
148{
149    if (m_webPageProxy->minimumLayoutSize().width() > 0)
150        m_webPageProxy->intrinsicContentSizeDidChange(newIntrinsicContentSize);
151}
152
153void TiledCoreAnimationDrawingAreaProxy::sendUpdateGeometry()
154{
155    ASSERT(!m_isWaitingForDidUpdateGeometry);
156
157    m_lastSentMinimumLayoutSize = m_webPageProxy->minimumLayoutSize();
158    m_lastSentSize = m_size;
159    m_lastSentLayerPosition = m_layerPosition;
160    m_webPageProxy->process()->send(Messages::DrawingArea::UpdateGeometry(m_size, m_layerPosition), m_webPageProxy->pageID());
161    m_isWaitingForDidUpdateGeometry = true;
162}
163
164} // namespace WebKit
165
166#endif // ENABLE(THREADED_SCROLLING)
167