1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved.
4 * Copyright (C) 2011 Igalia S.L.
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 INC. AND ITS CONTRIBUTORS ``AS IS''
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
25 * THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "config.h"
29 #include "WebEventFactory.h"
30
31 #include "GtkVersioning.h"
32 #include "PlatformKeyboardEvent.h"
33 #include "Scrollbar.h"
34 #include "WindowsKeyboardCodes.h"
35 #include <gdk/gdk.h>
36 #include <gdk/gdkkeysyms.h>
37 #include <wtf/ASCIICType.h>
38
39 using namespace WebCore;
40
41 namespace WebKit {
42
isGdkKeyCodeFromKeyPad(unsigned keyval)43 static inline bool isGdkKeyCodeFromKeyPad(unsigned keyval)
44 {
45 return keyval >= GDK_KP_Space && keyval <= GDK_KP_9;
46 }
47
modifiersForEvent(const GdkEvent * event)48 static inline WebEvent::Modifiers modifiersForEvent(const GdkEvent* event)
49 {
50 unsigned modifiers = 0;
51 GdkModifierType state;
52
53 ASSERT(gdk_event_get_state(event, &state));
54
55 if (state & GDK_CONTROL_MASK)
56 modifiers |= WebEvent::ControlKey;
57 if (state & GDK_SHIFT_MASK)
58 modifiers |= WebEvent::ShiftKey;
59 if (state & GDK_MOD1_MASK)
60 modifiers |= WebEvent::AltKey;
61 if (state & GDK_META_MASK)
62 modifiers |= WebEvent::MetaKey;
63
64 return static_cast<WebEvent::Modifiers>(modifiers);
65 }
66
buttonForEvent(GdkEvent * event)67 static inline WebMouseEvent::Button buttonForEvent(GdkEvent* event)
68 {
69 unsigned button = 0;
70
71 switch (event->type) {
72 case GDK_MOTION_NOTIFY:
73 button = WebMouseEvent::NoButton;
74 if (event->motion.state & GDK_BUTTON1_MASK)
75 button = WebMouseEvent::LeftButton;
76 else if (event->motion.state & GDK_BUTTON2_MASK)
77 button = WebMouseEvent::MiddleButton;
78 else if (event->motion.state & GDK_BUTTON3_MASK)
79 button = WebMouseEvent::RightButton;
80 break;
81 case GDK_BUTTON_PRESS:
82 case GDK_2BUTTON_PRESS:
83 case GDK_3BUTTON_PRESS:
84 case GDK_BUTTON_RELEASE:
85 if (event->button.button == 1)
86 button = WebMouseEvent::LeftButton;
87 else if (event->button.button == 2)
88 button = WebMouseEvent::MiddleButton;
89 else if (event->button.button == 3)
90 button = WebMouseEvent::RightButton;
91 break;
92 default:
93 ASSERT_NOT_REACHED();
94 }
95
96 return static_cast<WebMouseEvent::Button>(button);
97 }
98
createWebMouseEvent(GdkEvent * event,int currentClickCount)99 WebMouseEvent WebEventFactory::createWebMouseEvent(GdkEvent *event, int currentClickCount)
100 {
101 double x, y, xRoot, yRoot;
102 gdk_event_get_coords(event, &x, &y);
103 gdk_event_get_root_coords(event, &xRoot, &yRoot);
104
105 WebEvent::Type type = static_cast<WebEvent::Type>(0);
106 switch (event->type) {
107 case GDK_MOTION_NOTIFY:
108 type = WebEvent::MouseMove;
109 break;
110 case GDK_BUTTON_PRESS:
111 case GDK_2BUTTON_PRESS:
112 case GDK_3BUTTON_PRESS:
113 type = WebEvent::MouseDown;
114 break;
115 case GDK_BUTTON_RELEASE:
116 type = WebEvent::MouseUp;
117 break;
118 default :
119 ASSERT_NOT_REACHED();
120 }
121
122 return WebMouseEvent(type,
123 buttonForEvent(event),
124 IntPoint(x, y),
125 IntPoint(xRoot, yRoot),
126 0 /* deltaX */,
127 0 /* deltaY */,
128 0 /* deltaZ */,
129 currentClickCount,
130 static_cast<WebEvent::Modifiers>(0),
131 gdk_event_get_time(event));
132 }
133
createWebWheelEvent(GdkEventScroll * scrollEvent)134 WebWheelEvent WebEventFactory::createWebWheelEvent(GdkEventScroll* scrollEvent)
135 {
136 GdkEvent* event(reinterpret_cast<GdkEvent*>(scrollEvent));
137 double x, y, xRoot, yRoot;
138 gdk_event_get_coords(event, &x, &y);
139 gdk_event_get_root_coords(event, &xRoot, &yRoot);
140
141 FloatSize wheelTicks;
142 switch (scrollEvent->direction) {
143 case GDK_SCROLL_UP:
144 wheelTicks = FloatSize(0, 1);
145 break;
146 case GDK_SCROLL_DOWN:
147 wheelTicks = FloatSize(0, -1);
148 break;
149 case GDK_SCROLL_LEFT:
150 wheelTicks = FloatSize(1, 0);
151 break;
152 case GDK_SCROLL_RIGHT:
153 wheelTicks = FloatSize(-1, 0);
154 break;
155 default:
156 ASSERT_NOT_REACHED();
157 }
158
159 // FIXME: [GTK] Add a setting to change the pixels per line used for scrolling
160 // https://bugs.webkit.org/show_bug.cgi?id=54826
161 float step = static_cast<float>(Scrollbar::pixelsPerLineStep());
162 FloatSize delta(wheelTicks.width() * step, wheelTicks.height() * step);
163
164 return WebWheelEvent(WebEvent::Wheel,
165 IntPoint(x, y),
166 IntPoint(xRoot, yRoot),
167 delta,
168 wheelTicks,
169 WebWheelEvent::ScrollByPixelWheelEvent,
170 modifiersForEvent(event),
171 gdk_event_get_time(event));
172 }
173
createWebKeyboardEvent(const GdkEventKey * event)174 WebKeyboardEvent WebEventFactory::createWebKeyboardEvent(const GdkEventKey* event)
175 {
176 return WebKeyboardEvent((event->type == GDK_KEY_RELEASE) ? WebEvent::KeyUp : WebEvent::KeyDown,
177 PlatformKeyboardEvent::singleCharacterString(event->keyval),
178 PlatformKeyboardEvent::singleCharacterString(event->keyval),
179 PlatformKeyboardEvent::keyIdentifierForGdkKeyCode(event->keyval),
180 PlatformKeyboardEvent::windowsKeyCodeForGdkKeyCode(event->keyval),
181 static_cast<int>(event->keyval),
182 0 /* macCharCode */,
183 false /* isAutoRepeat */,
184 isGdkKeyCodeFromKeyPad(event->keyval),
185 false /* isSystemKey */,
186 modifiersForEvent(reinterpret_cast<const GdkEvent*>(event)),
187 gdk_event_get_time(reinterpret_cast<const GdkEvent*>(event)));
188 }
189
190 } // namespace WebKit
191