153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#include "SDL_ime.h"
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#include "SDL_ibus.h"
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#include "SDL_fcitx.h"
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typedef SDL_bool (*SDL_IME_Init_t)(void);
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typedef void (*SDL_IME_Quit_t)(void);
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typedef void (*SDL_IME_SetFocus_t)(SDL_bool);
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typedef void (*SDL_IME_Reset_t)(void);
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typedef SDL_bool (*SDL_IME_ProcessKeyEvent_t)(Uint32, Uint32, Uint8 state);
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typedef void (*SDL_IME_UpdateTextRect_t)(const SDL_Rect *);
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typedef void (*SDL_IME_PumpEvents_t)(void);
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static SDL_IME_Init_t SDL_IME_Init_Real = NULL;
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static SDL_IME_Quit_t SDL_IME_Quit_Real = NULL;
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static SDL_IME_SetFocus_t SDL_IME_SetFocus_Real = NULL;
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static SDL_IME_Reset_t SDL_IME_Reset_Real = NULL;
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static SDL_IME_ProcessKeyEvent_t SDL_IME_ProcessKeyEvent_Real = NULL;
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static SDL_IME_UpdateTextRect_t SDL_IME_UpdateTextRect_Real = NULL;
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static SDL_IME_PumpEvents_t SDL_IME_PumpEvents_Real = NULL;
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static void InitIME()
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{
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static SDL_bool inited = SDL_FALSE;
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#ifdef HAVE_FCITX
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const char *im_module = SDL_getenv("SDL_IM_MODULE");
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const char *xmodifiers = SDL_getenv("XMODIFIERS");
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#endif
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if (inited == SDL_TRUE) {
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return;
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}
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inited = SDL_TRUE;
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/* See if fcitx IME support is being requested */
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#ifdef HAVE_FCITX
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if (SDL_IME_Init_Real == NULL &&
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((im_module && SDL_strcmp(im_module, "fcitx") == 0) ||
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(im_module == NULL && xmodifiers && SDL_strstr(xmodifiers, "@im=fcitx") != NULL))) {
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SDL_IME_Init_Real = SDL_Fcitx_Init;
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SDL_IME_Quit_Real = SDL_Fcitx_Quit;
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SDL_IME_SetFocus_Real = SDL_Fcitx_SetFocus;
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SDL_IME_Reset_Real = SDL_Fcitx_Reset;
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SDL_IME_ProcessKeyEvent_Real = SDL_Fcitx_ProcessKeyEvent;
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SDL_IME_UpdateTextRect_Real = SDL_Fcitx_UpdateTextRect;
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SDL_IME_PumpEvents_Real = SDL_Fcitx_PumpEvents;
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}
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#endif /* HAVE_FCITX */
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/* default to IBus */
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#ifdef HAVE_IBUS_IBUS_H
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if (SDL_IME_Init_Real == NULL) {
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SDL_IME_Init_Real = SDL_IBus_Init;
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SDL_IME_Quit_Real = SDL_IBus_Quit;
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SDL_IME_SetFocus_Real = SDL_IBus_SetFocus;
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SDL_IME_Reset_Real = SDL_IBus_Reset;
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SDL_IME_ProcessKeyEvent_Real = SDL_IBus_ProcessKeyEvent;
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SDL_IME_UpdateTextRect_Real = SDL_IBus_UpdateTextRect;
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SDL_IME_PumpEvents_Real = SDL_IBus_PumpEvents;
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}
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#endif /* HAVE_IBUS_IBUS_H */
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}
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SDL_bool
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SDL_IME_Init(void)
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{
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InitIME();
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if (SDL_IME_Init_Real) {
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if (SDL_IME_Init_Real()) {
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return SDL_TRUE;
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}
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/* uhoh, the IME implementation's init failed! Disable IME support. */
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SDL_IME_Init_Real = NULL;
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SDL_IME_Quit_Real = NULL;
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SDL_IME_SetFocus_Real = NULL;
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SDL_IME_Reset_Real = NULL;
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SDL_IME_ProcessKeyEvent_Real = NULL;
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SDL_IME_UpdateTextRect_Real = NULL;
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SDL_IME_PumpEvents_Real = NULL;
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}
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return SDL_FALSE;
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}
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void SDL_IME_Quit(void)
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{
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if (SDL_IME_Quit_Real) {
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SDL_IME_Quit_Real();
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}
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}
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void SDL_IME_SetFocus(SDL_bool focused)
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{
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if (SDL_IME_SetFocus_Real) {
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SDL_IME_SetFocus_Real(focused);
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}
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}
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void SDL_IME_Reset(void)
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{
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if (SDL_IME_Reset_Real) {
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SDL_IME_Reset_Real();
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}
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}
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SDL_bool
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SDL_IME_ProcessKeyEvent(Uint32 keysym, Uint32 keycode, Uint8 state)
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{
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if (SDL_IME_ProcessKeyEvent_Real) {
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return SDL_IME_ProcessKeyEvent_Real(keysym, keycode, state);
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}
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return SDL_FALSE;
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}
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void SDL_IME_UpdateTextRect(const SDL_Rect *rect)
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{
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if (SDL_IME_UpdateTextRect_Real) {
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SDL_IME_UpdateTextRect_Real(rect);
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}
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}
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void SDL_IME_PumpEvents()
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{
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if (SDL_IME_PumpEvents_Real) {
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SDL_IME_PumpEvents_Real();
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}
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}
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