1/*
2 * Copyright (C) 2010 Company 100, Inc.
3 * Copyright 2009, The Android Open Source Project
4 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "config.h"
29#include "EventHandler.h"
30
31#include "ClipboardBrew.h"
32#include "EventNames.h"
33#include "FocusController.h"
34#include "Frame.h"
35#include "FrameView.h"
36#include "HitTestResult.h"
37#include "KeyboardEvent.h"
38#include "MouseEventWithHitTestResults.h"
39#include "NotImplemented.h"
40#include "Page.h"
41#include "PlatformKeyboardEvent.h"
42#include "PlatformWheelEvent.h"
43#include "RenderWidget.h"
44
45namespace WebCore {
46
47bool EventHandler::tabsToAllFormControls(KeyboardEvent* event) const
48{
49    return true;
50}
51
52void EventHandler::focusDocumentView()
53{
54    Page* page = m_frame->page();
55    if (page)
56        page->focusController()->setFocusedFrame(m_frame);
57}
58
59bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)
60{
61    // Figure out which view to send the event to.
62    RenderObject* target = targetNode(event) ? targetNode(event)->renderer() : 0;
63    if (!target || !target->isWidget())
64        return false;
65    return passMouseDownEventToWidget(toRenderWidget(target)->widget());
66}
67
68bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)
69{
70    return passMouseDownEventToWidget(renderWidget->widget());
71}
72
73// This function is used to route the mouse down event to the native widgets, it seems like a
74// work around for the Mac platform which does not support double clicks, but browsers do.
75bool EventHandler::passMouseDownEventToWidget(Widget* widget)
76{
77    notImplemented();
78    return false;
79}
80
81bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const
82{
83    notImplemented();
84    return false;
85}
86
87// This function is called for mouse events by FrameView::handleMousePressEvent().
88// It is used to ensure that events are sync'ed correctly between frames. For example
89// if the user presses down in one frame and up in another frame, this function will
90// returns true, and pass the event to the correct frame.
91bool EventHandler::passSubframeEventToSubframe(MouseEventWithHitTestResults& event, Frame* subframe, HitTestResult*)
92{
93    notImplemented();
94    return false;
95}
96
97// This is called to route wheel events to child widgets when they are RenderWidget
98// as the parent usually gets wheel event. Don't have a mouse with a wheel to confirm
99// the operation of this function.
100bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& event, Widget* widget)
101{
102    notImplemented();
103    return false;
104}
105
106bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
107{
108    return passSubframeEventToSubframe(mev, subframe);
109}
110
111bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe, HitTestResult* hoveredNode)
112{
113    return passSubframeEventToSubframe(mev, subframe, hoveredNode);
114}
115
116bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
117{
118    return passSubframeEventToSubframe(mev, subframe);
119}
120
121unsigned EventHandler::accessKeyModifiers()
122{
123    return PlatformKeyboardEvent::AltKey;
124}
125
126} // namespace WebCore
127
128