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* Copyright (C) 2010~2010 by CSSlayer *
* wengxt@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
/**
* @file ime.h
* @author Yuking yuking_net@sohu.com
* @date 2008-1-16
*
* @brief Public Header for Input Method Develop
*
*/
#ifndef _FCITX_IME_H_
#define _FCITX_IME_H_
#include <time.h>
#include <fcitx-utils/utf8.h>
#include <fcitx-config/hotkey.h>
#include <fcitx/ui.h>
#include <fcitx/addon.h>
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_CODE_LEN 63
#define MAX_CAND_LEN 127
#define MAX_TIPS_LEN 9
#define MAX_CAND_WORD 10
#define MAX_USER_INPUT 300
#define HOT_KEY_COUNT 2
#define LANGCODE_LENGTH 5
#define PRIORITY_DISABLE 100
struct _FcitxInputContext;
struct _FcitxInstance;
struct _FcitxAddon;
struct _FcitxCandidateWordList;
typedef enum _FcitxIMAvailableStatus {
IMAS_Enable,
IMAS_Disable,
} FcitxIMAvailableStatus;
typedef enum _KEY_RELEASED {
KR_OTHER = 0,
KR_CTRL,
KR_2ND_SELECTKEY,
KR_3RD_SELECTKEY,
KR_CTRL_SHIFT
} KEY_RELEASED;
typedef enum _INPUT_RETURN_VALUE {
IRV_TO_PROCESS = 0, /* do something */
IRV_FLAG_BLOCK_FOLLOWING_PROCESS = 1 << 0, /* nothing to do, actually non-zero is blocking, but you need a flag for do nothing */
IRV_FLAG_FORWARD_KEY = 1 << 1, /* the key will be forwarded */
IRV_FLAG_RESET_INPUT = 1 << 2, /* reset input */
IRV_FLAG_PENDING_COMMIT_STRING = 1 << 3, /* there is something in input strStringGet buffer, commit it */
IRV_FLAG_UPDATE_INPUT_WINDOW = 1 << 4, /* something updated in input window, let the UI update */
IRV_FLAG_UPDATE_CANDIDATE_WORDS = 1 << 5, /* update the candidate words */
IRV_FLAG_ENG = 1 << 6, /* special */
IRV_FLAG_PUNC = 1 << 7, /* special */
IRV_FLAG_DISPLAY_LAST = 1 << 8, /* special */
IRV_FLAG_DO_PHRASE_TIPS = 1 << 9, /* special */
IRV_FLAG_ASYNC = 1 << 10,
/* compatible */
IRV_DONOT_PROCESS = IRV_FLAG_FORWARD_KEY,
IRV_COMMIT_STRING = IRV_FLAG_PENDING_COMMIT_STRING | IRV_FLAG_DO_PHRASE_TIPS,
IRV_DO_NOTHING = IRV_FLAG_BLOCK_FOLLOWING_PROCESS,
IRV_CLEAN = IRV_FLAG_RESET_INPUT,
IRV_COMMIT_STRING_REMIND = IRV_FLAG_PENDING_COMMIT_STRING | IRV_FLAG_UPDATE_INPUT_WINDOW,
IRV_DISPLAY_CANDWORDS = IRV_FLAG_UPDATE_INPUT_WINDOW | IRV_FLAG_UPDATE_CANDIDATE_WORDS,
IRV_DONOT_PROCESS_CLEAN = IRV_FLAG_FORWARD_KEY | IRV_FLAG_RESET_INPUT,
IRV_COMMIT_STRING_NEXT = IRV_FLAG_PENDING_COMMIT_STRING | IRV_FLAG_UPDATE_INPUT_WINDOW,
IRV_DISPLAY_MESSAGE = IRV_FLAG_UPDATE_INPUT_WINDOW,
IRV_ENG = IRV_FLAG_PENDING_COMMIT_STRING | IRV_FLAG_ENG | IRV_FLAG_RESET_INPUT,
IRV_PUNC = IRV_FLAG_PENDING_COMMIT_STRING | IRV_FLAG_PUNC | IRV_FLAG_RESET_INPUT,
IRV_DISPLAY_LAST = IRV_FLAG_UPDATE_INPUT_WINDOW | IRV_FLAG_DISPLAY_LAST,
IRV_ASYNC = IRV_FLAG_ASYNC
} INPUT_RETURN_VALUE;
/**
* @brief Fcitx Input Method class, it can register more than one input
* method in create function
**/
typedef struct _FcitxIMClass {
void* (*Create)(struct _FcitxInstance* instance);
void (*Destroy)(void *arg);
} FcitxIMClass;
typedef boolean(*FcitxIMInit)(void *arg);
typedef void (*FcitxIMResetIM)(void *arg);
typedef INPUT_RETURN_VALUE(*FcitxIMDoInput)(void *arg, FcitxKeySym, unsigned int);
typedef INPUT_RETURN_VALUE(*FcitxIMGetCandWords)(void *arg);
typedef boolean(*FcitxIMPhraseTips)(void *arg);
typedef void (*FcitxIMSave)(void *arg);
typedef void (*FcitxIMReloadConfig)(void *arg);
typedef INPUT_RETURN_VALUE (*FcitxIMKeyBlocker)(void* arg, FcitxKeySym, unsigned int);
/**
* @brief Fcitx Input method instance
**/
typedef struct _FcitxIM {
/**
* @brief The name that can be display on the UI
**/
char *strName;
/**
* @brief icon name used to find icon
**/
char *strIconName;
/**
* @brief reset im status
**/
FcitxIMResetIM ResetIM;
/**
* @brief process key input
**/
FcitxIMDoInput DoInput;
/**
* @brief update candidate works function
**/
FcitxIMGetCandWords GetCandWords;
/**
* @brief phrase tips function
**/
FcitxIMPhraseTips PhraseTips;
/**
* @brief save function
**/
FcitxIMSave Save;
/**
* @brief init function
**/
FcitxIMInit Init;
/**
* @brief reload config function
**/
FcitxIMReloadConfig ReloadConfig;
/**
* @brief private data can be set by UI implementation
**/
void* uiprivate;
/**
* @brief the pointer to im class
**/
void* klass;
/**
* @brief the priority order
**/
int iPriority;
/**
* @brief Language Code
**/
char langCode[LANGCODE_LENGTH + 1];
/**
* @brief uniqueName
**/
char *uniqueName;
/**
* @brief input method initialized or not
*/
boolean initialized;
/**
* @brief Fcitx Addon
**/
FcitxAddon* owner;
/**
* @brief reload config function
**/
FcitxIMKeyBlocker KeyBlocker;
void* padding[10];
} FcitxIM;
typedef enum _FcitxKeyEventType {
FCITX_PRESS_KEY,
FCITX_RELEASE_KEY
} FcitxKeyEventType;
/**
* @brief Global Input State, including displayed message.
**/
typedef struct _FcitxInputState FcitxInputState;
FcitxInputState* FcitxInputStateCreate();
/**
* @brief the string pending commit
*
* @param input input state
* @return char*
**/
char* FcitxInputStateGetOutputString(FcitxInputState* input);
/**
* @brief get current input method
*
* @param instance fcitx instance
* @return _FcitxIM*
**/
struct _FcitxIM* FcitxInstanceGetCurrentIM(struct _FcitxInstance *instance);
/**
* @brief enable im
*
* @param instance fcitx instance
* @param ic input context
* @param keepState keep current state or not
* @return void
**/
void FcitxInstanceEnableIM(struct _FcitxInstance* instance, struct _FcitxInputContext* ic, boolean keepState);
/**
* @brief End Input
*
* @param instance
* @param ic input context
* @return void
**/
void FcitxInstanceCloseIM(struct _FcitxInstance* instance, struct _FcitxInputContext* ic);
/**
* @brief Change im state between IS_ACTIVE and IS_ENG
*
* @param instance fcitx instance
* @param ic input context
* @return void
**/
void FcitxInstanceChangeIMState(struct _FcitxInstance* instance, struct _FcitxInputContext* ic);
/**
* @brief reset input state
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceResetInput(struct _FcitxInstance* instance);
/**
* @brief clean whole input window
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceCleanInputWindow(struct _FcitxInstance *instance);
/**
* @brief clean preedit string and aux up
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceCleanInputWindowUp(struct _FcitxInstance *instance);
/**
* @brief clean candidate word list and aux down
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceCleanInputWindowDown(struct _FcitxInstance *instance);
/**
* @brief Sometimes, we use INPUT_RETURN_VALUE not from ProcessKey, so use this function to do the correct thing.
*
* @param instance fcitx instance
* @param retVal input return val
* @return void
**/
void FcitxInstanceProcessInputReturnValue(
struct _FcitxInstance* instance,
INPUT_RETURN_VALUE retVal
);
/**
* @brief register a new input method
*
* @param instance fcitx instance
* @param addonInstance instance of addon
* @param name input method name
* @param iconName icon name
* @param Init init callback
* @param ResetIM reset callback
* @param DoInput do input callback
* @param GetCandWords get candidate words callback
* @param PhraseTips phrase tips callback
* @param Save save callback
* @param ReloadConfig reload config callback
* @param priv private data for this input method.
* @param priority order of this input method
* @param langCode language code for this input method
* @return void
**/
void FcitxInstanceRegisterIM(struct _FcitxInstance *instance,
void *imclass,
const char* uniqueName,
const char* name,
const char* iconName,
FcitxIMInit Init,
FcitxIMResetIM ResetIM,
FcitxIMDoInput DoInput,
FcitxIMGetCandWords GetCandWords,
FcitxIMPhraseTips PhraseTips,
FcitxIMSave Save,
FcitxIMReloadConfig ReloadConfig,
FcitxIMKeyBlocker KeyBlocker,
int priority,
const char *langCode
);
/**
* @brief process a key event, should only used by frontend
*
* @param instance fcitx instance
* @param event event type
* @param timestamp timestamp
* @param sym keysym
* @param state key state
* @return INPUT_RETURN_VALUE
**/
INPUT_RETURN_VALUE FcitxInstanceProcessKey(struct _FcitxInstance* instance, FcitxKeyEventType event, long unsigned int timestamp, FcitxKeySym sym, unsigned int state);
FCITX_EXPORT_API
INPUT_RETURN_VALUE FcitxInstanceDoInputCallback(
struct _FcitxInstance* instance,
INPUT_RETURN_VALUE retVal,
FcitxKeyEventType event,
long unsigned int timestamp,
FcitxKeySym sym,
unsigned int state);
/**
* @brief send a new key event to client
*
* @param instance fcitx instance
* @param ic input context
* @param event event tpye
* @param sym keysym
* @param state key state
* @return void
**/
void FcitxInstanceForwardKey(struct _FcitxInstance* instance, struct _FcitxInputContext* ic, FcitxKeyEventType event, FcitxKeySym sym, unsigned int state);
/**
* @brief save all input method data
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceSaveAllIM(struct _FcitxInstance* instance);
/**
* @brief reload all config
*
* @param instance fcitx instance
* @return void
**/
void FcitxInstanceReloadConfig(struct _FcitxInstance* instance);
/**
* @brief switch to input method by index
*
* @param instance fcitx instance
* @param index input method index
* @return void
**/
void FcitxInstanceSwitchIM(struct _FcitxInstance* instance, int index);
/**
* @brief check is choose key or not, if so, return the choose index
*
* @param sym keysym
* @param state keystate
* @param strChoose choose key string
* @return int
**/
int FcitxHotkeyCheckChooseKey(FcitxKeySym sym, int state, const char* strChoose);
/**
* @brief check is choose key or not, if so, return the choose index
*
* @param sym keysym
* @param state keystate
* @param strChoose choose key string
* @param candState candidate keystate
* @return int
**/
int FcitxHotkeyCheckChooseKeyAndModifier(FcitxKeySym sym, int state, const char* strChoose, int candState);
/**
* @brief get im index by im name
*
* @param instance fcitx instance
* @param imName im name
* @return int im index
*
* @since 4.2
**/
int FcitxInstanceGetIMIndexByName(struct _FcitxInstance* instance, const char* imName);
struct _FcitxCandidateWordList* FcitxInputStateGetCandidateList(FcitxInputState* input);
boolean FcitxInputStateGetIsInRemind(FcitxInputState* input);
void FcitxInputStateSetIsInRemind(FcitxInputState* input, boolean isInRemind);
boolean FcitxInputStateGetIsDoInputOnly(FcitxInputState* input);
void FcitxInputStateSetIsDoInputOnly(FcitxInputState* input, boolean isDoInputOnly);
char* FcitxInputStateGetRawInputBuffer(FcitxInputState* input);
int FcitxInputStateGetCursorPos(FcitxInputState* input);
void FcitxInputStateSetCursorPos(FcitxInputState* input, int cursorPos);
int FcitxInputStateGetClientCursorPos(FcitxInputState* input);
void FcitxInputStateSetClientCursorPos(FcitxInputState* input, int cursorPos);
FcitxMessages* FcitxInputStateGetAuxUp(FcitxInputState* input);
FcitxMessages* FcitxInputStateGetAuxDown(FcitxInputState* input);
FcitxMessages* FcitxInputStateGetPreedit(FcitxInputState* input);
FcitxMessages* FcitxInputStateGetClientPreedit(FcitxInputState* input);
int FcitxInputStateGetRawInputBufferSize(FcitxInputState* input);
void FcitxInputStateSetRawInputBufferSize(FcitxInputState* input, int size);
boolean FcitxInputStateGetShowCursor(FcitxInputState* input);
void FcitxInputStateSetShowCursor(FcitxInputState* input, boolean showCursor);
int FcitxInputStateGetLastIsSingleChar(FcitxInputState* input);
void FcitxInputStateSetLastIsSingleChar(FcitxInputState* input, int lastIsSingleChar);
void FcitxInputStateSetKeyReleased(FcitxInputState* input, KEY_RELEASED keyReleased);
FcitxIM* FcitxInstanceGetIMFromIMList(struct _FcitxInstance* instance, FcitxIMAvailableStatus imas, const char* name);
void FcitxInstanceUpdateIMList(struct _FcitxInstance* instance);
#ifdef __cplusplus
}
#endif
#endif
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