1 /*
2 * Copyright 2009, The Android Open Source Project
3 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26 #define LOG_TAG "WebCore"
27
28 #include "config.h"
29 #include "EventHandler.h"
30
31 #include "FocusController.h"
32 #include "Frame.h"
33 #include "KeyboardEvent.h"
34 #include "MouseEventWithHitTestResults.h"
35 #include "Page.h"
36 #include "PlatformKeyboardEvent.h"
37 #include "PlatformWheelEvent.h"
38 #include "RenderWidget.h"
39
40 namespace WebCore {
41
tabsToAllFormControls(KeyboardEvent *) const42 bool EventHandler::tabsToAllFormControls(KeyboardEvent*) const
43 {
44 return true;
45 }
46
focusDocumentView()47 void EventHandler::focusDocumentView()
48 {
49 if (Page* page = m_frame->page())
50 page->focusController()->setFocusedFrame(m_frame);
51 }
52
passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults & event)53 bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)
54 {
55 // Figure out which view to send the event to.
56 RenderObject* target = targetNode(event) ? targetNode(event)->renderer() : 0;
57 if (!target || !target->isWidget())
58 return false;
59 return passMouseDownEventToWidget(toRenderWidget(target)->widget());
60 }
61
passWidgetMouseDownEventToWidget(RenderWidget * renderWidget)62 bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)
63 {
64 return passMouseDownEventToWidget(renderWidget->widget());
65 }
66
67 // This function is used to route the mouse down event to the native widgets, it seems like a
68 // work around for the Mac platform which does not support double clicks, but browsers do.
passMouseDownEventToWidget(Widget *)69 bool EventHandler::passMouseDownEventToWidget(Widget*)
70 {
71 // return false so the normal propogation handles the event
72 return false;
73 }
74
eventActivatedView(const PlatformMouseEvent &) const75 bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const
76 {
77 notImplemented();
78 return false;
79 }
80
81 // This is called to route wheel events to child widgets when they are RenderWidget
82 // as the parent usually gets wheel event. Don't have a mouse with a wheel to confirm
83 // the operation of this function.
passWheelEventToWidget(PlatformWheelEvent &,Widget *)84 bool EventHandler::passWheelEventToWidget(PlatformWheelEvent&, Widget*)
85 {
86 notImplemented();
87 return false;
88 }
89
passMousePressEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe)90 bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
91 {
92 subframe->eventHandler()->handleMousePressEvent(mev.event());
93 return true;
94 }
95
passMouseMoveEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe,HitTestResult * hoveredNode)96 bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev,
97 Frame* subframe, HitTestResult* hoveredNode)
98 {
99 subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode);
100 return true;
101 }
102
passMouseReleaseEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe)103 bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
104 {
105 subframe->eventHandler()->handleMouseReleaseEvent(mev.event());
106 return true;
107 }
108
createDraggingClipboard() const109 PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const
110 {
111 return PassRefPtr<Clipboard>(0);
112 }
113
accessKeyModifiers()114 unsigned EventHandler::accessKeyModifiers()
115 {
116 return PlatformKeyboardEvent::AltKey;
117 }
118
119 const double EventHandler::TextDragDelay = 0.0;
120
121 } // namespace WebCore
122