1/*
2 * Copyright (C) 2010 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#include "config.h"
27#include "DrawingArea.h"
28
29#include "DrawingAreaMessages.h"
30#include "WebPage.h"
31#include "WebPageCreationParameters.h"
32#include "WebProcess.h"
33#include <WebCore/DisplayRefreshMonitor.h>
34#include <WebCore/TransformationMatrix.h>
35
36// Subclasses
37#if PLATFORM(COCOA)
38#include "RemoteLayerTreeDrawingArea.h"
39#include "TiledCoreAnimationDrawingArea.h"
40#elif USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
41#include "DrawingAreaCoordinatedGraphics.h"
42#endif
43
44namespace WebKit {
45using namespace WebCore;
46
47std::unique_ptr<DrawingArea> DrawingArea::create(WebPage& webPage, const WebPageCreationParameters& parameters)
48{
49 switch (parameters.drawingAreaType) {
50#if PLATFORM(COCOA)
51#if !PLATFORM(IOS_FAMILY)
52 case DrawingAreaTypeTiledCoreAnimation:
53 return std::make_unique<TiledCoreAnimationDrawingArea>(webPage, parameters);
54#endif
55 case DrawingAreaTypeRemoteLayerTree:
56 return std::make_unique<RemoteLayerTreeDrawingArea>(webPage, parameters);
57#elif USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
58 case DrawingAreaTypeCoordinatedGraphics:
59 return std::make_unique<DrawingAreaCoordinatedGraphics>(webPage, parameters);
60#endif
61 }
62
63 return nullptr;
64}
65
66DrawingArea::DrawingArea(DrawingAreaType type, DrawingAreaIdentifier identifier, WebPage& webPage)
67 : m_type(type)
68 , m_identifier(identifier)
69 , m_webPage(webPage)
70{
71 WebProcess::singleton().addMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_identifier, *this);
72}
73
74DrawingArea::~DrawingArea()
75{
76 removeMessageReceiverIfNeeded();
77}
78
79void DrawingArea::dispatchAfterEnsuringUpdatedScrollPosition(WTF::Function<void ()>&& function)
80{
81 // Scroll position updates are synchronous by default so we can just call the function right away here.
82 function();
83}
84
85#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) && !(PLATFORM(MAC) && ENABLE(WEBPROCESS_WINDOWSERVER_BLOCKING))
86RefPtr<WebCore::DisplayRefreshMonitor> DrawingArea::createDisplayRefreshMonitor(PlatformDisplayID)
87{
88 return nullptr;
89}
90#endif
91
92void DrawingArea::removeMessageReceiverIfNeeded()
93{
94 if (m_hasRemovedMessageReceiver)
95 return;
96 m_hasRemovedMessageReceiver = true;
97 WebProcess::singleton().removeMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_identifier);
98}
99
100} // namespace WebKit
101