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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 #ifndef UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ | 5 #ifndef UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ |
| 6 #define UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ | 6 #define UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ |
| 7 | 7 |
| 8 #include <atlbase.h> | 8 #include <atlbase.h> |
| 9 #include <atlcom.h> | 9 #include <atlcom.h> |
| 10 #include <msctf.h> | 10 #include <msctf.h> |
| 11 | 11 |
| 12 #include <set> | 12 #include <set> |
| 13 | 13 |
| 14 #include "base/basictypes.h" | 14 #include "base/basictypes.h" |
| 15 #include "base/callback.h" | 15 #include "base/callback.h" |
| 16 #include "base/compiler_specific.h" | 16 #include "base/compiler_specific.h" |
| 17 #include "ui/base/ime/text_input_type.h" | 17 #include "ui/base/ime/text_input_type.h" |
| 18 #include "ui/base/range/range.h" | |
| 19 #include "ui/base/ui_export.h" | 18 #include "ui/base/ui_export.h" |
| 19 #include "ui/gfx/range/range.h" |
| 20 | 20 |
| 21 struct ITfDocumentMgr; | 21 struct ITfDocumentMgr; |
| 22 | 22 |
| 23 namespace ui { | 23 namespace ui { |
| 24 | 24 |
| 25 class TSFEventRouterObserver { | 25 class TSFEventRouterObserver { |
| 26 public: | 26 public: |
| 27 TSFEventRouterObserver() {} | 27 TSFEventRouterObserver() {} |
| 28 | 28 |
| 29 // Called when the number of currently opened candidate windows changes. | 29 // Called when the number of currently opened candidate windows changes. |
| 30 virtual void OnCandidateWindowCountChanged(size_t window_count) {} | 30 virtual void OnCandidateWindowCountChanged(size_t window_count) {} |
| 31 | 31 |
| 32 // Called when a composition is started. | 32 // Called when a composition is started. |
| 33 virtual void OnTSFStartComposition() {} | 33 virtual void OnTSFStartComposition() {} |
| 34 | 34 |
| 35 // Called when the text contents are updated. If there is no composition, | 35 // Called when the text contents are updated. If there is no composition, |
| 36 // ui::Range::InvalidRange is passed to |composition_range|. | 36 // gfx::Range::InvalidRange is passed to |composition_range|. |
| 37 virtual void OnTextUpdated(const ui::Range& composition_range) {} | 37 virtual void OnTextUpdated(const gfx::Range& composition_range) {} |
| 38 | 38 |
| 39 // Called when a composition is terminated. | 39 // Called when a composition is terminated. |
| 40 virtual void OnTSFEndComposition() {} | 40 virtual void OnTSFEndComposition() {} |
| 41 | 41 |
| 42 protected: | 42 protected: |
| 43 virtual ~TSFEventRouterObserver() {} | 43 virtual ~TSFEventRouterObserver() {} |
| 44 | 44 |
| 45 private: | 45 private: |
| 46 DISALLOW_COPY_AND_ASSIGN(TSFEventRouterObserver); | 46 DISALLOW_COPY_AND_ASSIGN(TSFEventRouterObserver); |
| 47 }; | 47 }; |
| 48 | 48 |
| 49 // This class monitores TSF related events and forwards them to given | 49 // This class monitores TSF related events and forwards them to given |
| 50 // |observer|. | 50 // |observer|. |
| 51 class UI_EXPORT TSFEventRouter { | 51 class UI_EXPORT TSFEventRouter { |
| 52 public: | 52 public: |
| 53 // Do not pass NULL to |observer|. | 53 // Do not pass NULL to |observer|. |
| 54 explicit TSFEventRouter(TSFEventRouterObserver* observer); | 54 explicit TSFEventRouter(TSFEventRouterObserver* observer); |
| 55 virtual ~TSFEventRouter(); | 55 virtual ~TSFEventRouter(); |
| 56 | 56 |
| 57 // Returns true if the IME is composing text. | 57 // Returns true if the IME is composing text. |
| 58 bool IsImeComposing(); | 58 bool IsImeComposing(); |
| 59 | 59 |
| 60 // Callbacks from the TSFEventRouterDelegate: | 60 // Callbacks from the TSFEventRouterDelegate: |
| 61 void OnCandidateWindowCountChanged(size_t window_count); | 61 void OnCandidateWindowCountChanged(size_t window_count); |
| 62 void OnTSFStartComposition(); | 62 void OnTSFStartComposition(); |
| 63 void OnTextUpdated(const ui::Range& composition_range); | 63 void OnTextUpdated(const gfx::Range& composition_range); |
| 64 void OnTSFEndComposition(); | 64 void OnTSFEndComposition(); |
| 65 | 65 |
| 66 // Sets |thread_manager| to be monitored. |thread_manager| can be NULL. | 66 // Sets |thread_manager| to be monitored. |thread_manager| can be NULL. |
| 67 void SetManager(ITfThreadMgr* thread_manager); | 67 void SetManager(ITfThreadMgr* thread_manager); |
| 68 | 68 |
| 69 private: | 69 private: |
| 70 class Delegate; | 70 class Delegate; |
| 71 | 71 |
| 72 CComPtr<Delegate> delegate_; | 72 CComPtr<Delegate> delegate_; |
| 73 | 73 |
| 74 TSFEventRouterObserver* observer_; | 74 TSFEventRouterObserver* observer_; |
| 75 | 75 |
| 76 DISALLOW_COPY_AND_ASSIGN(TSFEventRouter); | 76 DISALLOW_COPY_AND_ASSIGN(TSFEventRouter); |
| 77 }; | 77 }; |
| 78 | 78 |
| 79 } // namespace ui | 79 } // namespace ui |
| 80 | 80 |
| 81 #endif // UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ | 81 #endif // UI_BASE_IME_WIN_TSF_EVENT_ROUTER_H_ |
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