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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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