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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 WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ | 5 #ifndef WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ |
| 6 #define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ | 6 #define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
| 12 #include "base/string16.h" | 12 #include "base/string16.h.h" |
| 13 #include "third_party/npapi/bindings/npapi.h" | 13 #include "third_party/npapi/bindings/npapi.h" |
| 14 #include "ui/gfx/rect.h" | 14 #include "ui/gfx/rect.h" |
| 15 | 15 |
| 16 namespace webkit { | 16 namespace webkit { |
| 17 namespace npapi { | 17 namespace npapi { |
| 18 | 18 |
| 19 class PluginInstance; | 19 class PluginInstance; |
| 20 | 20 |
| 21 // A class that emulates an IME for windowless plug-ins. A windowless plug-in | 21 // A class that emulates an IME for windowless plug-ins. A windowless plug-in |
| 22 // does not have a window. Therefore, we cannot attach an IME to a windowless | 22 // does not have a window. Therefore, we cannot attach an IME to a windowless |
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| 44 // need to update its IME data so the class can return it to the plug-in through | 44 // need to update its IME data so the class can return it to the plug-in through |
| 45 // its IMM32 calls. To update the IME data, we call CompositionUpdated() or | 45 // its IMM32 calls. To update the IME data, we call CompositionUpdated() or |
| 46 // CompositionCompleted() BEFORE sending an IMM32 Window message to the plugin | 46 // CompositionCompleted() BEFORE sending an IMM32 Window message to the plugin |
| 47 // with a SendEvents() call as listed in the following snippet. (Plug-ins call | 47 // with a SendEvents() call as listed in the following snippet. (Plug-ins call |
| 48 // IMM32 functions when it receives IMM32 window messages. We need to update the | 48 // IMM32 functions when it receives IMM32 window messages. We need to update the |
| 49 // IME data of this class before sending IMM32 messages so the plug-ins can get | 49 // IME data of this class before sending IMM32 messages so the plug-ins can get |
| 50 // the latest data.) | 50 // the latest data.) |
| 51 // | 51 // |
| 52 // WebPluginIMEWin ime; | 52 // WebPluginIMEWin ime; |
| 53 // ... | 53 // ... |
| 54 // string16 text = "composing"; | 54 // base::string16 text = "composing"; |
| 55 // std::vector<int> clauses; | 55 // std::vector<int> clauses; |
| 56 // clauses.push_back(0); | 56 // clauses.push_back(0); |
| 57 // clauses.push_back(text.length()); | 57 // clauses.push_back(text.length()); |
| 58 // std::vector<int> target; | 58 // std::vector<int> target; |
| 59 // ime.CompositionUpdated(text, clauses, target, text.length()); | 59 // ime.CompositionUpdated(text, clauses, target, text.length()); |
| 60 // ime.SendEvents(instance()); | 60 // ime.SendEvents(instance()); |
| 61 // | 61 // |
| 62 // string16 result = "result"; | 62 // base::string16 result = "result"; |
| 63 // ime.CompositionCompleted(result); | 63 // ime.CompositionCompleted(result); |
| 64 // ime.SendEvents(instance()); | 64 // ime.SendEvents(instance()); |
| 65 // | 65 // |
| 66 // This class also provides GetStatus() so we can retrieve the IME status | 66 // This class also provides GetStatus() so we can retrieve the IME status |
| 67 // changed by a plug-in with IMM32 functions. This function is mainly used for | 67 // changed by a plug-in with IMM32 functions. This function is mainly used for |
| 68 // retrieving the position of a caret. | 68 // retrieving the position of a caret. |
| 69 // | 69 // |
| 70 class WebPluginIMEWin { | 70 class WebPluginIMEWin { |
| 71 public: | 71 public: |
| 72 // A simple class that allows a plug-in to access a WebPluginIMEWin instance | 72 // A simple class that allows a plug-in to access a WebPluginIMEWin instance |
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| 87 }; | 87 }; |
| 88 | 88 |
| 89 WebPluginIMEWin(); | 89 WebPluginIMEWin(); |
| 90 ~WebPluginIMEWin(); | 90 ~WebPluginIMEWin(); |
| 91 | 91 |
| 92 // Sends raw IME events sent from a browser to this IME emulator and updates | 92 // Sends raw IME events sent from a browser to this IME emulator and updates |
| 93 // the list of Windows events to be sent to a plug-in. A raw IME event is | 93 // the list of Windows events to be sent to a plug-in. A raw IME event is |
| 94 // mapped to two or more Windows events and it is not so trivial to send these | 94 // mapped to two or more Windows events and it is not so trivial to send these |
| 95 // Windows events to a plug-in. This function inserts Windows events in the | 95 // Windows events to a plug-in. This function inserts Windows events in the |
| 96 // order expected by a plug-in. | 96 // order expected by a plug-in. |
| 97 void CompositionUpdated(const string16& text, | 97 void CompositionUpdated(const base::string16& text, |
| 98 std::vector<int> clauses, | 98 std::vector<int> clauses, |
| 99 std::vector<int> target, | 99 std::vector<int> target, |
| 100 int cursor_position); | 100 int cursor_position); |
| 101 void CompositionCompleted(const string16& text); | 101 void CompositionCompleted(const base::string16& text); |
| 102 | 102 |
| 103 // Send all the events added in Update() to a plug-in. | 103 // Send all the events added in Update() to a plug-in. |
| 104 bool SendEvents(PluginInstance* instance); | 104 bool SendEvents(PluginInstance* instance); |
| 105 | 105 |
| 106 // Retrieves the status of this IME emulator. | 106 // Retrieves the status of this IME emulator. |
| 107 bool GetStatus(int* input_type, gfx::Rect* caret_rect); | 107 bool GetStatus(int* input_type, gfx::Rect* caret_rect); |
| 108 | 108 |
| 109 // Returns the pointers to IMM32-emulation functions implemented by this | 109 // Returns the pointers to IMM32-emulation functions implemented by this |
| 110 // class. This function is used for over-writing the ones returned from | 110 // class. This function is used for over-writing the ones returned from |
| 111 // GetProcAddress() calls of Win32 API. | 111 // GetProcAddress() calls of Win32 API. |
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| 134 static HIMC WINAPI ImmGetContext(HWND window); | 134 static HIMC WINAPI ImmGetContext(HWND window); |
| 135 static BOOL WINAPI ImmReleaseContext(HWND window, HIMC context); | 135 static BOOL WINAPI ImmReleaseContext(HWND window, HIMC context); |
| 136 static BOOL WINAPI ImmSetCandidateWindow(HIMC context, | 136 static BOOL WINAPI ImmSetCandidateWindow(HIMC context, |
| 137 CANDIDATEFORM* candidate); | 137 CANDIDATEFORM* candidate); |
| 138 static BOOL WINAPI ImmSetOpenStatus(HIMC context, BOOL open); | 138 static BOOL WINAPI ImmSetOpenStatus(HIMC context, BOOL open); |
| 139 | 139 |
| 140 // a list of NPEvents to be sent to a plug-in. | 140 // a list of NPEvents to be sent to a plug-in. |
| 141 std::vector<NPEvent> events_; | 141 std::vector<NPEvent> events_; |
| 142 | 142 |
| 143 // The return value for GCS_COMPSTR. | 143 // The return value for GCS_COMPSTR. |
| 144 string16 composition_text_; | 144 base::string16 composition_text_; |
| 145 | 145 |
| 146 // The return value for GCS_RESULTSTR. | 146 // The return value for GCS_RESULTSTR. |
| 147 string16 result_text_; | 147 base::string16 result_text_; |
| 148 | 148 |
| 149 // The return value for GCS_COMPATTR. | 149 // The return value for GCS_COMPATTR. |
| 150 std::string composition_attributes_; | 150 std::string composition_attributes_; |
| 151 | 151 |
| 152 // The return value for GCS_COMPCLAUSE. | 152 // The return value for GCS_COMPCLAUSE. |
| 153 std::vector<uint32> composition_clauses_; | 153 std::vector<uint32> composition_clauses_; |
| 154 | 154 |
| 155 // The return value for GCS_RESULTCLAUSE. | 155 // The return value for GCS_RESULTCLAUSE. |
| 156 uint32 result_clauses_[2]; | 156 uint32 result_clauses_[2]; |
| 157 | 157 |
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| 176 gfx::Rect caret_rect_; | 176 gfx::Rect caret_rect_; |
| 177 | 177 |
| 178 // The pointer to the WebPluginIMEWin instance used by patch functions. | 178 // The pointer to the WebPluginIMEWin instance used by patch functions. |
| 179 static WebPluginIMEWin* instance_; | 179 static WebPluginIMEWin* instance_; |
| 180 }; | 180 }; |
| 181 | 181 |
| 182 } // namespace npapi | 182 } // namespace npapi |
| 183 } // namespace webkit | 183 } // namespace webkit |
| 184 | 184 |
| 185 #endif // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ | 185 #endif // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IME_WIN_H_ |
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