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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef VIEWS_FOCUS_FOCUS_MANAGER_H_ | 5 #ifndef VIEWS_FOCUS_FOCUS_MANAGER_H_ |
| 6 #define VIEWS_FOCUS_FOCUS_MANAGER_H_ | 6 #define VIEWS_FOCUS_FOCUS_MANAGER_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <list> | 9 #include <list> |
| 10 #include <map> | 10 #include <map> |
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| 178 // Register a keyboard accelerator for the specified target. If multiple | 178 // Register a keyboard accelerator for the specified target. If multiple |
| 179 // targets are registered for an accelerator, a target registered later has | 179 // targets are registered for an accelerator, a target registered later has |
| 180 // higher priority. | 180 // higher priority. |
| 181 // Note that we are currently limited to accelerators that are either: | 181 // Note that we are currently limited to accelerators that are either: |
| 182 // - a key combination including Ctrl or Alt | 182 // - a key combination including Ctrl or Alt |
| 183 // - the escape key | 183 // - the escape key |
| 184 // - the enter key | 184 // - the enter key |
| 185 // - any F key (F1, F2, F3 ...) | 185 // - any F key (F1, F2, F3 ...) |
| 186 // - any browser specific keys (as available on special keyboards) | 186 // - any browser specific keys (as available on special keyboards) |
| 187 void RegisterAccelerator(const Accelerator& accelerator, | 187 void RegisterAccelerator(const Accelerator& accelerator, |
| 188 AcceleratorTarget* target); | 188 ui::AcceleratorTarget* target); |
| 189 | 189 |
| 190 // Unregister the specified keyboard accelerator for the specified target. | 190 // Unregister the specified keyboard accelerator for the specified target. |
| 191 void UnregisterAccelerator(const Accelerator& accelerator, | 191 void UnregisterAccelerator(const Accelerator& accelerator, |
| 192 AcceleratorTarget* target); | 192 ui::AcceleratorTarget* target); |
| 193 | 193 |
| 194 // Unregister all keyboard accelerator for the specified target. | 194 // Unregister all keyboard accelerator for the specified target. |
| 195 void UnregisterAccelerators(AcceleratorTarget* target); | 195 void UnregisterAccelerators(ui::AcceleratorTarget* target); |
| 196 | 196 |
| 197 // Activate the target associated with the specified accelerator. | 197 // Activate the target associated with the specified accelerator. |
| 198 // First, AcceleratorPressed handler of the most recently registered target | 198 // First, AcceleratorPressed handler of the most recently registered target |
| 199 // is called, and if that handler processes the event (i.e. returns true), | 199 // is called, and if that handler processes the event (i.e. returns true), |
| 200 // this method immediately returns. If not, we do the same thing on the next | 200 // this method immediately returns. If not, we do the same thing on the next |
| 201 // target, and so on. | 201 // target, and so on. |
| 202 // Returns true if an accelerator was activated. | 202 // Returns true if an accelerator was activated. |
| 203 bool ProcessAccelerator(const Accelerator& accelerator); | 203 bool ProcessAccelerator(const Accelerator& accelerator); |
| 204 | 204 |
| 205 // Called by a RootView when a view within its hierarchy is removed | 205 // Called by a RootView when a view within its hierarchy is removed |
| 206 // from its parent. This will only be called by a RootView in a | 206 // from its parent. This will only be called by a RootView in a |
| 207 // hierarchy of Widgets that this FocusManager is attached to the | 207 // hierarchy of Widgets that this FocusManager is attached to the |
| 208 // parent Widget of. | 208 // parent Widget of. |
| 209 void ViewRemoved(View* removed); | 209 void ViewRemoved(View* removed); |
| 210 | 210 |
| 211 // Adds/removes a listener. The FocusChangeListener is notified every time | 211 // Adds/removes a listener. The FocusChangeListener is notified every time |
| 212 // the focused view is about to change. | 212 // the focused view is about to change. |
| 213 void AddFocusChangeListener(FocusChangeListener* listener); | 213 void AddFocusChangeListener(FocusChangeListener* listener); |
| 214 void RemoveFocusChangeListener(FocusChangeListener* listener); | 214 void RemoveFocusChangeListener(FocusChangeListener* listener); |
| 215 | 215 |
| 216 // Returns the AcceleratorTarget that should be activated for the specified | 216 // Returns the AcceleratorTarget that should be activated for the specified |
| 217 // keyboard accelerator, or NULL if no view is registered for that keyboard | 217 // keyboard accelerator, or NULL if no view is registered for that keyboard |
| 218 // accelerator. | 218 // accelerator. |
| 219 AcceleratorTarget* GetCurrentTargetForAccelerator( | 219 ui::AcceleratorTarget* GetCurrentTargetForAccelerator( |
| 220 const Accelerator& accelertor) const; | 220 const Accelerator& accelertor) const; |
| 221 | 221 |
| 222 // Sets the focus to the specified native view. | 222 // Sets the focus to the specified native view. |
| 223 virtual void FocusNativeView(gfx::NativeView native_view); | 223 virtual void FocusNativeView(gfx::NativeView native_view); |
| 224 | 224 |
| 225 // Clears the native view having the focus. | 225 // Clears the native view having the focus. |
| 226 virtual void ClearNativeFocus(); | 226 virtual void ClearNativeFocus(); |
| 227 | 227 |
| 228 // Convenience method that returns true if the passed |key_event| should | 228 // Convenience method that returns true if the passed |key_event| should |
| 229 // trigger tab traversal (if it is a TAB key press with or without SHIFT | 229 // trigger tab traversal (if it is a TAB key press with or without SHIFT |
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| 249 View* focused_view_; | 249 View* focused_view_; |
| 250 | 250 |
| 251 // The storage id used in the ViewStorage to store/restore the view that last | 251 // The storage id used in the ViewStorage to store/restore the view that last |
| 252 // had focus. | 252 // had focus. |
| 253 int stored_focused_view_storage_id_; | 253 int stored_focused_view_storage_id_; |
| 254 | 254 |
| 255 // The reason why the focus most recently changed. | 255 // The reason why the focus most recently changed. |
| 256 FocusChangeReason focus_change_reason_; | 256 FocusChangeReason focus_change_reason_; |
| 257 | 257 |
| 258 // The accelerators and associated targets. | 258 // The accelerators and associated targets. |
| 259 typedef std::list<AcceleratorTarget*> AcceleratorTargetList; | 259 typedef std::list<ui::AcceleratorTarget*> AcceleratorTargetList; |
| 260 typedef std::map<Accelerator, AcceleratorTargetList> AcceleratorMap; | 260 typedef std::map<Accelerator, AcceleratorTargetList> AcceleratorMap; |
| 261 AcceleratorMap accelerators_; | 261 AcceleratorMap accelerators_; |
| 262 | 262 |
| 263 // The list of registered FocusChange listeners. | 263 // The list of registered FocusChange listeners. |
| 264 ObserverList<FocusChangeListener, true> focus_change_listeners_; | 264 ObserverList<FocusChangeListener, true> focus_change_listeners_; |
| 265 | 265 |
| 266 // See description above getter. | 266 // See description above getter. |
| 267 bool is_changing_focus_; | 267 bool is_changing_focus_; |
| 268 | 268 |
| 269 DISALLOW_COPY_AND_ASSIGN(FocusManager); | 269 DISALLOW_COPY_AND_ASSIGN(FocusManager); |
| 270 }; | 270 }; |
| 271 | 271 |
| 272 } // namespace views | 272 } // namespace views |
| 273 | 273 |
| 274 #endif // VIEWS_FOCUS_FOCUS_MANAGER_H_ | 274 #endif // VIEWS_FOCUS_FOCUS_MANAGER_H_ |
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