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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/events/event_utils.h" | 5 #include "ui/events/event_utils.h" |
6 | 6 |
7 #include <vector> | 7 #include <vector> |
8 | 8 |
9 #include "ui/events/event.h" | 9 #include "ui/events/event.h" |
10 #include "ui/gfx/display.h" | 10 #include "ui/gfx/display.h" |
11 #include "ui/gfx/screen.h" | |
12 | 11 |
13 namespace ui { | 12 namespace ui { |
14 | 13 |
15 namespace { | 14 namespace { |
16 int g_custom_event_types = ET_LAST; | 15 int g_custom_event_types = ET_LAST; |
17 } // namespace | 16 } // namespace |
18 | 17 |
19 scoped_ptr<Event> EventFromNative(const base::NativeEvent& native_event) { | 18 scoped_ptr<Event> EventFromNative(const base::NativeEvent& native_event) { |
20 scoped_ptr<Event> event; | 19 scoped_ptr<Event> event; |
21 EventType type = EventTypeFromNative(native_event); | 20 EventType type = EventTypeFromNative(native_event); |
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110 | 109 |
111 int RegisterCustomEventType() { | 110 int RegisterCustomEventType() { |
112 return ++g_custom_event_types; | 111 return ++g_custom_event_types; |
113 } | 112 } |
114 | 113 |
115 base::TimeDelta EventTimeForNow() { | 114 base::TimeDelta EventTimeForNow() { |
116 return base::TimeDelta::FromInternalValue( | 115 return base::TimeDelta::FromInternalValue( |
117 base::TimeTicks::Now().ToInternalValue()); | 116 base::TimeTicks::Now().ToInternalValue()); |
118 } | 117 } |
119 | 118 |
120 bool ShouldDefaultToNaturalScroll() { | |
121 return GetInternalDisplayTouchSupport() == | |
122 gfx::Display::TOUCH_SUPPORT_AVAILABLE; | |
123 } | |
124 | |
125 gfx::Display::TouchSupport GetInternalDisplayTouchSupport() { | |
126 gfx::Screen* screen = gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE); | |
127 // No screen in some unit tests. | |
128 if (!screen) | |
129 return gfx::Display::TOUCH_SUPPORT_UNKNOWN; | |
130 const std::vector<gfx::Display>& displays = screen->GetAllDisplays(); | |
131 for (std::vector<gfx::Display>::const_iterator it = displays.begin(); | |
132 it != displays.end(); ++it) { | |
133 if (it->IsInternal()) | |
134 return it->touch_support(); | |
135 } | |
136 return gfx::Display::TOUCH_SUPPORT_UNAVAILABLE; | |
137 } | |
138 | |
139 } // namespace ui | 119 } // namespace ui |
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