1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "EventDispatcher.h"
#include "EventDispatcherMessages.h"
#include "WebEvent.h"
#include "WebEventConversion.h"
#include "WebPage.h"
#include "WebPageProxyMessages.h"
#include "WebProcess.h"
#include <WebCore/Page.h>
#include <WebCore/RunLoop.h>
#include <wtf/MainThread.h>
#if ENABLE(THREADED_SCROLLING)
#include <WebCore/ScrollingCoordinator.h>
#include <WebCore/ScrollingThread.h>
#include <WebCore/ScrollingTree.h>
#endif
using namespace WebCore;
namespace WebKit {
PassRefPtr<EventDispatcher> EventDispatcher::create()
{
return adoptRef(new EventDispatcher);
}
EventDispatcher::EventDispatcher()
: m_queue(WorkQueue::create("com.apple.WebKit.EventDispatcher"))
{
}
EventDispatcher::~EventDispatcher()
{
}
#if ENABLE(THREADED_SCROLLING)
void EventDispatcher::addScrollingTreeForPage(WebPage* webPage)
{
MutexLocker locker(m_scrollingTreesMutex);
ASSERT(webPage->corePage()->scrollingCoordinator());
ASSERT(!m_scrollingTrees.contains(webPage->pageID()));
m_scrollingTrees.set(webPage->pageID(), webPage->corePage()->scrollingCoordinator()->scrollingTree());
}
void EventDispatcher::removeScrollingTreeForPage(WebPage* webPage)
{
MutexLocker locker(m_scrollingTreesMutex);
ASSERT(m_scrollingTrees.contains(webPage->pageID()));
m_scrollingTrees.remove(webPage->pageID());
}
#endif
void EventDispatcher::initializeConnection(CoreIPC::Connection* connection)
{
connection->addWorkQueueMessageReceiver(Messages::EventDispatcher::messageReceiverName(), m_queue.get(), this);
}
void EventDispatcher::wheelEvent(uint64_t pageID, const WebWheelEvent& wheelEvent, bool canGoBack, bool canGoForward)
{
#if ENABLE(THREADED_SCROLLING)
MutexLocker locker(m_scrollingTreesMutex);
if (ScrollingTree* scrollingTree = m_scrollingTrees.get(pageID)) {
PlatformWheelEvent platformWheelEvent = platform(wheelEvent);
// FIXME: It's pretty horrible that we're updating the back/forward state here.
// WebCore should always know the current state and know when it changes so the
// scrolling tree can be notified.
// We only need to do this at the beginning of the gesture.
if (platformWheelEvent.phase() == PlatformWheelEventPhaseBegan)
ScrollingThread::dispatch(bind(&ScrollingTree::updateBackForwardState, scrollingTree, canGoBack, canGoForward));
ScrollingTree::EventResult result = scrollingTree->tryToHandleWheelEvent(platformWheelEvent);
if (result == ScrollingTree::DidHandleEvent || result == ScrollingTree::DidNotHandleEvent) {
sendDidReceiveEvent(pageID, wheelEvent, result == ScrollingTree::DidHandleEvent);
return;
}
}
#else
UNUSED_PARAM(canGoBack);
UNUSED_PARAM(canGoForward);
#endif
RunLoop::main()->dispatch(bind(&EventDispatcher::dispatchWheelEvent, this, pageID, wheelEvent));
}
#if ENABLE(GESTURE_EVENTS)
void EventDispatcher::gestureEvent(uint64_t pageID, const WebGestureEvent& gestureEvent)
{
RunLoop::main()->dispatch(bind(&EventDispatcher::dispatchGestureEvent, this, pageID, gestureEvent));
}
#endif
void EventDispatcher::dispatchWheelEvent(uint64_t pageID, const WebWheelEvent& wheelEvent)
{
ASSERT(isMainThread());
WebPage* webPage = WebProcess::shared().webPage(pageID);
if (!webPage)
return;
webPage->wheelEvent(wheelEvent);
}
#if ENABLE(GESTURE_EVENTS)
void EventDispatcher::dispatchGestureEvent(uint64_t pageID, const WebGestureEvent& gestureEvent)
{
ASSERT(isMainThread());
WebPage* webPage = WebProcess::shared().webPage(pageID);
if (!webPage)
return;
webPage->gestureEvent(gestureEvent);
}
#endif
#if ENABLE(THREADED_SCROLLING)
void EventDispatcher::sendDidReceiveEvent(uint64_t pageID, const WebEvent& event, bool didHandleEvent)
{
WebProcess::shared().parentProcessConnection()->send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(event.type()), didHandleEvent), pageID);
}
#endif
} // namespace WebKit
|
