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
|
/*
* Copyright 2009, The Android Open Source Project
* Copyright (C) 2006 Zack Rusin <zack@kde.org>
*
* 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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.
*/
#define LOG_TAG "WebCore"
#include "config.h"
#include "EventHandler.h"
#include "FocusController.h"
#include "Frame.h"
#include "KeyboardEvent.h"
#include "MouseEventWithHitTestResults.h"
#include "Page.h"
#include "PlatformKeyboardEvent.h"
#include "PlatformWheelEvent.h"
#include "RenderWidget.h"
namespace WebCore {
unsigned EventHandler::s_accessKeyModifiers = PlatformKeyboardEvent::AltKey;
bool EventHandler::tabsToAllControls(KeyboardEvent*) const
{
return true;
}
void EventHandler::focusDocumentView()
{
if (Page* page = m_frame->page())
page->focusController()->setFocusedFrame(m_frame);
}
bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)
{
// Figure out which view to send the event to.
RenderObject* target = event.targetNode() ? event.targetNode()->renderer() : 0;
if (!target || !target->isWidget())
return false;
return passMouseDownEventToWidget(static_cast<RenderWidget*>(target)->widget());
}
bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)
{
return passMouseDownEventToWidget(renderWidget->widget());
}
// This function is used to route the mouse down event to the native widgets, it seems like a
// work around for the Mac platform which does not support double clicks, but browsers do.
bool EventHandler::passMouseDownEventToWidget(Widget* )
{
// return false so the normal propogation handles the event
return false;
}
bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const
{
notImplemented();
return false;
}
// This function is called for mouse events by FrameView::handleMousePressEvent().
// It is used to ensure that events are sync'ed correctly between frames. For example
// if the user presses down in one frame and up in another frame, this function will
// returns true, and pass the event to the correct frame.
bool EventHandler::passSubframeEventToSubframe(MouseEventWithHitTestResults& , Frame* , HitTestResult* )
{
notImplemented();
return false;
}
// This is called to route wheel events to child widgets when they are RenderWidget
// as the parent usually gets wheel event. Don't have a mouse with a wheel to confirm
// the operation of this function.
bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& , Widget* )
{
notImplemented();
return false;
}
bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
{
return passSubframeEventToSubframe(mev, subframe);
}
bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev,
Frame* subframe, HitTestResult* )
{
return passSubframeEventToSubframe(mev, subframe);
}
bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
{
return passSubframeEventToSubframe(mev, subframe);
}
class Clipboard : public RefCounted<Clipboard> {
};
PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const
{
return PassRefPtr<Clipboard>(0);
}
const double EventHandler::TextDragDelay = 0.0;
} // namespace WebCore
|
