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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_COLLECTION_H_ |
| 6 #define COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_COLLECTION_H_ |
| 7 |
| 8 #include <map> |
| 9 #include <memory> |
| 10 |
| 11 #include "base/threading/thread_checker.h" |
| 12 #include "components/keyboard_lock/key_hook_activator.h" |
| 13 |
| 14 namespace content { |
| 15 class WebContents; |
| 16 } // namespace content |
| 17 |
| 18 namespace keyboard_lock { |
| 19 |
| 20 class KeyHookActivator; |
| 21 |
| 22 // A collection of KeyHookActivator instances. |
| 23 // All the public functions can only be called in one thread. |
| 24 class KeyHookActivatorCollection final { |
| 25 public: |
| 26 KeyHookActivatorCollection(); |
| 27 ~KeyHookActivatorCollection(); |
| 28 |
| 29 // Returning a nullptr if no KeyHookActivator has been registered for |
| 30 // |contents|. |
| 31 KeyHookActivator* Find(const content::WebContents* contents) const; |
| 32 |
| 33 void Insert(const content::WebContents* contents, |
| 34 std::unique_ptr<KeyHookActivator> key_hook); |
| 35 |
| 36 // Do nothing if |contents| is not found in the collection: web page may call |
| 37 // cancelKeyboardLock() without calling requestKeyboardLock() before. |
| 38 void Erase(const content::WebContents* contents); |
| 39 |
| 40 private: |
| 41 // GUARDED_BY(thread_checker_) |
| 42 std::map<const content::WebContents*, std::unique_ptr<KeyHookActivator>> |
| 43 activators_; |
| 44 |
| 45 // Ensures |activators_| is only accessed in |runner_| thread. |
| 46 base::ThreadChecker thread_checker_; |
| 47 }; |
| 48 |
| 49 } // namespace keyboard_lock |
| 50 |
| 51 #endif // COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_COLLECTION_H_ |
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