| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
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| // modification, are permitted provided that the following conditions are |
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| |
| // Simple word patterns matcher which will be used in composer objects |
| // for auto swtiching input mode. |
| |
| #ifndef MOZC_COMPOSER_INTERNAL_MODE_SWITCHING_HANDLER_H_ |
| #define MOZC_COMPOSER_INTERNAL_MODE_SWITCHING_HANDLER_H_ |
| |
| #include <cctype> |
| #include <map> |
| #include <string> |
| #include <utility> |
| |
| namespace mozc { |
| namespace composer { |
| class ModeSwitchingHandler { |
| public: |
| ModeSwitchingHandler(); |
| virtual ~ModeSwitchingHandler(); |
| |
| enum ModeSwitching { |
| NO_CHANGE, |
| REVERT_TO_PREVIOUS_MODE, |
| PREFERRED_ALPHANUMERIC, |
| HALF_ALPHANUMERIC, |
| FULL_ALPHANUMERIC, |
| }; |
| |
| // Returns true if the current preedit matches to patterns. |key| |
| // is the string which the user actually typed. display_mode and |
| // input_mode are stored rules controlling the composer. |
| bool GetModeSwitchingRule(const string &key, |
| ModeSwitching *display_mode, |
| ModeSwitching *input_mode) const; |
| |
| // Matcher to Windows drive letters like "C:\". |
| bool IsDriveLetter(const string &key) const; |
| |
| // Add a rule for mode switching. |display_mode| affects the |
| // existing composition the user typed. |input_mode| affects the |
| // current input mode to be used for the user's new typing. |
| void AddRule(const string &key, |
| const ModeSwitching display_mode, |
| const ModeSwitching input_mode); |
| |
| // Reload instance variables for new config. |
| void Reload(); |
| |
| // Get the singleton instance of this class. |
| static ModeSwitchingHandler *GetModeSwitchingHandler(); |
| |
| private: |
| // map<key, pair<display_mode, input_mode> >. |
| map<string, pair<ModeSwitching, ModeSwitching> > patterns_; |
| }; |
| } // namespace composer |
| } // namespace mozc |
| |
| #endif // MOZC_COMPOSER_INTERNAL_MODE_SWITCHING_HANDLER_H_ |