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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "chrome/browser/extensions/global_shortcut_listener_x11.h" | 5 #include "chrome/browser/extensions/global_shortcut_listener_x11.h" |
6 | 6 |
7 #include "base/x11/x11_error_tracker.h" | 7 #include "base/x11/x11_error_tracker.h" |
8 #include "content/public/browser/browser_thread.h" | 8 #include "content/public/browser/browser_thread.h" |
9 #include "ui/base/accelerators/accelerator.h" | 9 #include "ui/base/accelerators/accelerator.h" |
10 #include "ui/events/keycodes/keyboard_code_conversion_x.h" | 10 #include "ui/events/keycodes/keyboard_code_conversion_x.h" |
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103 bool GlobalShortcutListenerX11::Dispatch(const base::NativeEvent& event) { | 103 bool GlobalShortcutListenerX11::Dispatch(const base::NativeEvent& event) { |
104 if (event->type == KeyPress) | 104 if (event->type == KeyPress) |
105 OnXKeyPressEvent(event); | 105 OnXKeyPressEvent(event); |
106 | 106 |
107 return true; | 107 return true; |
108 } | 108 } |
109 | 109 |
110 void GlobalShortcutListenerX11::RegisterAccelerator( | 110 void GlobalShortcutListenerX11::RegisterAccelerator( |
111 const ui::Accelerator& accelerator, | 111 const ui::Accelerator& accelerator, |
112 GlobalShortcutListener::Observer* observer) { | 112 GlobalShortcutListener::Observer* observer) { |
| 113 if (registered_hot_keys_.find(accelerator) != registered_hot_keys_.end()) { |
| 114 // The shortcut has already been registered. Some shortcuts, such as |
| 115 // MediaKeys can have multiple targets, all keyed off of the same |
| 116 // accelerator. |
| 117 return; |
| 118 } |
| 119 |
113 int modifiers = GetNativeModifiers(accelerator); | 120 int modifiers = GetNativeModifiers(accelerator); |
114 KeyCode keycode = XKeysymToKeycode(x_display_, accelerator.key_code()); | 121 KeyCode keycode = XKeysymToKeycode(x_display_, accelerator.key_code()); |
115 base::X11ErrorTracker err_tracker; | 122 base::X11ErrorTracker err_tracker; |
116 | 123 |
117 // Because XGrabKey only works on the exact modifiers mask, we should register | 124 // Because XGrabKey only works on the exact modifiers mask, we should register |
118 // our hot keys with modifiers that we want to ignore, including Num lock, | 125 // our hot keys with modifiers that we want to ignore, including Num lock, |
119 // Caps lock, Scroll lock. See comment about |kModifiersMasks|. | 126 // Caps lock, Scroll lock. See comment about |kModifiersMasks|. |
120 for (size_t i = 0; i < arraysize(kModifiersMasks); ++i) { | 127 for (size_t i = 0; i < arraysize(kModifiersMasks); ++i) { |
121 XGrabKey(x_display_, keycode, modifiers | kModifiersMasks[i], | 128 XGrabKey(x_display_, keycode, modifiers | kModifiersMasks[i], |
122 x_root_window_, False, GrabModeAsync, GrabModeAsync); | 129 x_root_window_, False, GrabModeAsync, GrabModeAsync); |
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172 modifiers |= (x_event->xkey.state & ControlMask) ? ui::EF_CONTROL_DOWN : 0; | 179 modifiers |= (x_event->xkey.state & ControlMask) ? ui::EF_CONTROL_DOWN : 0; |
173 modifiers |= (x_event->xkey.state & Mod1Mask) ? ui::EF_ALT_DOWN : 0; | 180 modifiers |= (x_event->xkey.state & Mod1Mask) ? ui::EF_ALT_DOWN : 0; |
174 | 181 |
175 ui::Accelerator accelerator( | 182 ui::Accelerator accelerator( |
176 ui::KeyboardCodeFromXKeyEvent(x_event), modifiers); | 183 ui::KeyboardCodeFromXKeyEvent(x_event), modifiers); |
177 if (registered_hot_keys_.find(accelerator) != registered_hot_keys_.end()) | 184 if (registered_hot_keys_.find(accelerator) != registered_hot_keys_.end()) |
178 instance.Get().NotifyKeyPressed(accelerator); | 185 instance.Get().NotifyKeyPressed(accelerator); |
179 } | 186 } |
180 | 187 |
181 } // namespace extensions | 188 } // namespace extensions |
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