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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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