1 /*
2 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "EventHandler.h"
28
29 #include "ClipboardGtk.h"
30 #include "FloatPoint.h"
31 #include "FocusController.h"
32 #include "Frame.h"
33 #include "FrameView.h"
34 #include "KeyboardEvent.h"
35 #include "MouseEventWithHitTestResults.h"
36 #include "NotImplemented.h"
37 #include "Page.h"
38 #include "PlatformKeyboardEvent.h"
39 #include "PlatformWheelEvent.h"
40 #include "RenderWidget.h"
41 #include "Scrollbar.h"
42
43 namespace WebCore {
44
45 const double EventHandler::TextDragDelay = 0.0;
46
tabsToAllFormControls(KeyboardEvent * event) const47 bool EventHandler::tabsToAllFormControls(KeyboardEvent* event) const
48 {
49 // We always allow tabs to all controls
50 return true;
51 }
52
focusDocumentView()53 void EventHandler::focusDocumentView()
54 {
55 if (Page* page = m_frame->page())
56 page->focusController()->setFocusedFrame(m_frame);
57 }
58
passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults & event)59 bool 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
passWidgetMouseDownEventToWidget(RenderWidget * renderWidget)68 bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)
69 {
70 return passMouseDownEventToWidget(renderWidget->widget());
71 }
72
passMouseDownEventToWidget(Widget * widget)73 bool EventHandler::passMouseDownEventToWidget(Widget* widget)
74 {
75 notImplemented();
76 return false;
77 }
78
eventActivatedView(const PlatformMouseEvent &) const79 bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const
80 {
81 //GTK+ activation is not necessarily tied to mouse events, so it may
82 //not make sense to implement this
83
84 notImplemented();
85 return false;
86 }
87
passWheelEventToWidget(PlatformWheelEvent & event,Widget * widget)88 bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& event, Widget* widget)
89 {
90 ASSERT(widget);
91 if (!widget->isFrameView())
92 return false;
93
94 return static_cast<FrameView*>(widget)->frame()->eventHandler()->handleWheelEvent(event);
95 }
96
createDraggingClipboard() const97 PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const
98 {
99 return ClipboardGtk::create(ClipboardWritable, DataObjectGtk::create(), Clipboard::DragAndDrop, m_frame);
100 }
101
passMousePressEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe)102 bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
103 {
104 subframe->eventHandler()->handleMousePressEvent(mev.event());
105 return true;
106 }
107
passMouseMoveEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe,HitTestResult * hoveredNode)108 bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe, HitTestResult* hoveredNode)
109 {
110 subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode);
111 return true;
112 }
113
passMouseReleaseEventToSubframe(MouseEventWithHitTestResults & mev,Frame * subframe)114 bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
115 {
116 subframe->eventHandler()->handleMouseReleaseEvent(mev.event());
117 return true;
118 }
119
accessKeyModifiers()120 unsigned EventHandler::accessKeyModifiers()
121 {
122 return PlatformKeyboardEvent::AltKey;
123 }
124
125 // GTK+ must scroll horizontally if the mouse pointer is on top of the
126 // horizontal scrollbar while scrolling with the wheel; we need to
127 // add the deltas and ticks here so that this behavior is consistent
128 // for styled scrollbars.
shouldTurnVerticalTicksIntoHorizontal(const HitTestResult & result) const129 bool EventHandler::shouldTurnVerticalTicksIntoHorizontal(const HitTestResult& result) const
130 {
131 return result.scrollbar() && result.scrollbar()->orientation() == HorizontalScrollbar;
132 }
133
134 }
135