This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_win32keyboard.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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#include "SDL_config.h"
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#include "SDL_win32video.h"
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#include "../../events/SDL_keyboard_c.h"
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#include "../../events/scancodes_win32.h"
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#include <imm.h>
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#include <oleauto.h>
static void IME_Init(SDL_VideoData *videodata, HWND hwnd);
static void IME_Enable(SDL_VideoData *videodata, HWND hwnd);
static void IME_Disable(SDL_VideoData *videodata, HWND hwnd);
static void IME_Quit(SDL_VideoData *videodata);
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#ifndef MAPVK_VK_TO_VSC
#define MAPVK_VK_TO_VSC 0
#endif
#ifndef MAPVK_VSC_TO_VK
#define MAPVK_VSC_TO_VK 1
#endif
#ifndef MAPVK_VK_TO_CHAR
#define MAPVK_VK_TO_CHAR 2
#endif
/* Alphabetic scancodes for PC keyboards */
BYTE alpha_scancodes[26] = {
30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 50, 49, 24,
25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44
};
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BYTE keypad_scancodes[10] = {
82, 79, 80, 81, 75, 76, 77, 71, 72, 73
};
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void
WIN_InitKeyboard(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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int i;
/* Make sure the alpha scancodes are correct. T isn't usually remapped */
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if (MapVirtualKey('T', MAPVK_VK_TO_VSC) != alpha_scancodes['T' - 'A']) {
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#if 0
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printf
("Fixing alpha scancode map, assuming US QWERTY layout!\nPlease send the following 26 lines of output to the SDL mailing list <sdl@libsdl.org>, including a description of your keyboard hardware.\n");
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#endif
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for (i = 0; i < SDL_arraysize(alpha_scancodes); ++i) {
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alpha_scancodes[i] = MapVirtualKey('A' + i, MAPVK_VK_TO_VSC);
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#if 0
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printf("%d = %d\n", i, alpha_scancodes[i]);
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#endif
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if (MapVirtualKey(VK_NUMPAD0, MAPVK_VK_TO_VSC) != keypad_scancodes[0]) {
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#if 0
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printf
("Fixing keypad scancode map!\nPlease send the following 10 lines of output to the SDL mailing list <sdl@libsdl.org>, including a description of your keyboard hardware.\n");
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#endif
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for (i = 0; i < SDL_arraysize(keypad_scancodes); ++i) {
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keypad_scancodes[i] =
MapVirtualKey(VK_NUMPAD0 + i, MAPVK_VK_TO_VSC);
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#if 0
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printf("%d = %d\n", i, keypad_scancodes[i]);
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#endif
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data->key_layout = win32_scancode_table;
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data->ime_com_initialized = SDL_FALSE;
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data->ime_threadmgr = 0;
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data->ime_initialized = SDL_FALSE;
data->ime_enabled = SDL_FALSE;
data->ime_available = SDL_FALSE;
data->ime_hwnd_main = 0;
data->ime_hwnd_current = 0;
data->ime_himc = 0;
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data->ime_composition[0] = 0;
data->ime_readingstring[0] = 0;
data->ime_cursor = 0;
data->ime_hkl = 0;
data->ime_himm32 = 0;
data->GetReadingString = 0;
data->ShowReadingWindow = 0;
data->ImmLockIMC = 0;
data->ImmUnlockIMC = 0;
data->ImmLockIMCC = 0;
data->ImmUnlockIMCC = 0;
data->ime_uiless = SDL_FALSE;
data->ime_threadmgrex = 0;
data->ime_uielemsinkcookie = TF_INVALID_COOKIE;
data->ime_alpnsinkcookie = TF_INVALID_COOKIE;
data->ime_openmodesinkcookie = TF_INVALID_COOKIE;
data->ime_convmodesinkcookie = TF_INVALID_COOKIE;
data->ime_uielemsink = 0;
data->ime_ippasink = 0;
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WIN_UpdateKeymap();
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SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu");
SDL_SetScancodeName(SDL_SCANCODE_LGUI, "Left Windows");
SDL_SetScancodeName(SDL_SCANCODE_RGUI, "Right Windows");
}
void
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WIN_UpdateKeymap()
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{
int i;
SDL_scancode scancode;
SDLKey keymap[SDL_NUM_SCANCODES];
SDL_GetDefaultKeymap(keymap);
for (i = 0; i < SDL_arraysize(win32_scancode_table); i++) {
/* Make sure this scancode is a valid character scancode */
scancode = win32_scancode_table[i];
if (scancode == SDL_SCANCODE_UNKNOWN ||
(keymap[scancode] & SDLK_SCANCODE_MASK)) {
continue;
}
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/* Alphabetic keys are handled specially, since Windows remaps them */
if (i >= 'A' && i <= 'Z') {
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BYTE vsc = alpha_scancodes[i - 'A'];
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keymap[scancode] = MapVirtualKey(vsc, MAPVK_VSC_TO_VK) + 0x20;
} else {
keymap[scancode] = (MapVirtualKey(i, MAPVK_VK_TO_CHAR) & 0x7FFF);
}
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SDL_SetKeymap(0, keymap, SDL_NUM_SCANCODES);
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}
void
WIN_QuitKeyboard(_THIS)
{
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IME_Quit((SDL_VideoData *)_this->driverdata);
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WIN_StartTextInput(_THIS)
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SDL_Window *window = SDL_GetKeyboardFocus();
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HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
IME_Init(videodata, hwnd);
IME_Enable(videodata, hwnd);
}
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}
void
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WIN_StopTextInput(_THIS)
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SDL_Window *window = SDL_GetKeyboardFocus();
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HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
IME_Init(videodata, hwnd);
IME_Disable(videodata, hwnd);
}
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}
void
WIN_SetTextInputRect(_THIS, SDL_Rect *rect)
{
}
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#define LANG_CHT MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_TRADITIONAL)
#define LANG_CHS MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED)
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#define MAKEIMEVERSION(major,minor) ((DWORD) (((BYTE)(major) << 24) | ((BYTE)(minor) << 16) ))
#define IMEID_VER(id) ((id) & 0xffff0000)
#define IMEID_LANG(id) ((id) & 0x0000ffff)
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#define CHT_HKL_DAYI ((HKL)0xE0060404)
#define CHT_HKL_NEW_PHONETIC ((HKL)0xE0080404)
#define CHT_HKL_NEW_CHANG_JIE ((HKL)0xE0090404)
#define CHT_HKL_NEW_QUICK ((HKL)0xE00A0404)
#define CHT_HKL_HK_CANTONESE ((HKL)0xE00B0404)
#define CHT_IMEFILENAME1 "TINTLGNT.IME"
#define CHT_IMEFILENAME2 "CINTLGNT.IME"
#define CHT_IMEFILENAME3 "MSTCIPHA.IME"
#define IMEID_CHT_VER42 (LANG_CHT | MAKEIMEVERSION(4, 2))
#define IMEID_CHT_VER43 (LANG_CHT | MAKEIMEVERSION(4, 3))
#define IMEID_CHT_VER44 (LANG_CHT | MAKEIMEVERSION(4, 4))
#define IMEID_CHT_VER50 (LANG_CHT | MAKEIMEVERSION(5, 0))
#define IMEID_CHT_VER51 (LANG_CHT | MAKEIMEVERSION(5, 1))
#define IMEID_CHT_VER52 (LANG_CHT | MAKEIMEVERSION(5, 2))
#define IMEID_CHT_VER60 (LANG_CHT | MAKEIMEVERSION(6, 0))
#define IMEID_CHT_VER_VISTA (LANG_CHT | MAKEIMEVERSION(7, 0))
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#define CHS_HKL ((HKL)0xE00E0804)
#define CHS_IMEFILENAME1 "PINTLGNT.IME"
#define CHS_IMEFILENAME2 "MSSCIPYA.IME"
#define IMEID_CHS_VER41 (LANG_CHS | MAKEIMEVERSION(4, 1))
#define IMEID_CHS_VER42 (LANG_CHS | MAKEIMEVERSION(4, 2))
#define IMEID_CHS_VER53 (LANG_CHS | MAKEIMEVERSION(5, 3))
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#define LANG() LOWORD((videodata->ime_hkl))
#define PRIMLANG() ((WORD)PRIMARYLANGID(LANG()))
#define SUBLANG() SUBLANGID(LANG())
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static void IME_UpdateInputLocale(SDL_VideoData *videodata);
static void IME_ClearComposition(SDL_VideoData *videodata);
static void IME_SetWindow(SDL_VideoData* videodata, HWND hwnd);
static void IME_SetupAPI(SDL_VideoData *videodata);
static DWORD IME_GetId(SDL_VideoData *videodata, UINT uIndex);
static void IME_SendEditingEvent(SDL_VideoData *videodata);
#define SDL_IsEqualIID(riid1, riid2) SDL_IsEqualGUID(riid1, riid2)
#define SDL_IsEqualGUID(rguid1, rguid2) (!SDL_memcmp(rguid1, rguid2, sizeof(GUID)))
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static SDL_bool UILess_SetupSinks(SDL_VideoData *videodata);
static void UILess_ReleaseSinks(SDL_VideoData *videodata);
static void UILess_EnableUIUpdates(SDL_VideoData *videodata);
static void UILess_DisableUIUpdates(SDL_VideoData *videodata);
static void
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IME_Init(SDL_VideoData *videodata, HWND hwnd)
{
if (videodata->ime_initialized)
return;
videodata->ime_hwnd_main = hwnd;
if (SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED))) {
videodata->ime_com_initialized = SDL_TRUE;
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CoCreateInstance(&CLSID_TF_ThreadMgr, NULL, CLSCTX_INPROC_SERVER, &IID_ITfThreadMgr, &videodata->ime_threadmgr);
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}
videodata->ime_initialized = SDL_TRUE;
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videodata->ime_himm32 = LoadLibraryA("imm32.dll");
if (!videodata->ime_himm32) {
videodata->ime_available = SDL_FALSE;
return;
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videodata->ImmLockIMC = (LPINPUTCONTEXT2 (WINAPI *)(HIMC))GetProcAddress(videodata->ime_himm32, "ImmLockIMC");
videodata->ImmUnlockIMC = (BOOL (WINAPI *)(HIMC))GetProcAddress(videodata->ime_himm32, "ImmUnlockIMC");
videodata->ImmLockIMCC = (LPVOID (WINAPI *)(HIMCC))GetProcAddress(videodata->ime_himm32, "ImmLockIMCC");
videodata->ImmUnlockIMCC = (BOOL (WINAPI *)(HIMCC))GetProcAddress(videodata->ime_himm32, "ImmUnlockIMCC");
IME_SetWindow(videodata, hwnd);
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videodata->ime_himc = ImmGetContext(hwnd);
ImmReleaseContext(hwnd, videodata->ime_himc);
if (!videodata->ime_himc) {
videodata->ime_available = SDL_FALSE;
IME_Disable(videodata, hwnd);
return;
}
videodata->ime_available = SDL_TRUE;
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IME_UpdateInputLocale(videodata);
IME_SetupAPI(videodata);
videodata->ime_uiless = UILess_SetupSinks(videodata);
IME_UpdateInputLocale(videodata);
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IME_Disable(videodata, hwnd);
}
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static void
IME_Enable(SDL_VideoData *videodata, HWND hwnd)
{
if (!videodata->ime_initialized || !videodata->ime_hwnd_current)
return;
if (!videodata->ime_available) {
IME_Disable(videodata, hwnd);
return;
}
if (videodata->ime_hwnd_current == videodata->ime_hwnd_main)
ImmAssociateContext(videodata->ime_hwnd_current, videodata->ime_himc);
videodata->ime_enabled = SDL_TRUE;
IME_UpdateInputLocale(videodata);
UILess_EnableUIUpdates(videodata);
}
static void
IME_Disable(SDL_VideoData *videodata, HWND hwnd)
{
if (!videodata->ime_initialized || !videodata->ime_hwnd_current)
return;
IME_ClearComposition(videodata);
if (videodata->ime_hwnd_current == videodata->ime_hwnd_main)
ImmAssociateContext(videodata->ime_hwnd_current, NULL);
videodata->ime_enabled = SDL_FALSE;
UILess_DisableUIUpdates(videodata);
}
static void
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IME_Quit(SDL_VideoData *videodata)
{
if (!videodata->ime_initialized)
return;
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UILess_ReleaseSinks(videodata);
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if (videodata->ime_hwnd_main)
ImmAssociateContext(videodata->ime_hwnd_main, videodata->ime_himc);
videodata->ime_hwnd_main = 0;
videodata->ime_himc = 0;
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if (videodata->ime_himm32) {
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FreeLibrary(videodata->ime_himm32);
videodata->ime_himm32 = 0;
}
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if (videodata->ime_threadmgr) {
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videodata->ime_threadmgr->lpVtbl->Release(videodata->ime_threadmgr);
videodata->ime_threadmgr = 0;
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if (videodata->ime_com_initialized) {
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CoUninitialize();
videodata->ime_com_initialized = SDL_FALSE;
}
videodata->ime_initialized = SDL_FALSE;
}
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static void
IME_GetReadingString(SDL_VideoData *videodata, HWND hwnd)
{
DWORD id = 0;
HIMC himc = 0;
WCHAR buffer[16];
WCHAR *s = buffer;
DWORD len = 0;
DWORD err = 0;
BOOL vertical = FALSE;
UINT maxuilen = 0;
static OSVERSIONINFOA osversion = {0};
if (videodata->ime_uiless)
return;
videodata->ime_readingstring[0] = 0;
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if (!osversion.dwOSVersionInfoSize) {
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osversion.dwOSVersionInfoSize = sizeof(osversion);
GetVersionExA(&osversion);
}
id = IME_GetId(videodata, 0);
if (!id)
return;
himc = ImmGetContext(hwnd);
if (!himc)
return;
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if (videodata->GetReadingString) {
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len = videodata->GetReadingString(himc, 0, 0, &err, &vertical, &maxuilen);
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if (len) {
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if (len > SDL_arraysize(buffer))
len = SDL_arraysize(buffer);
len = videodata->GetReadingString(himc, len, s, &err, &vertical, &maxuilen);
}
SDL_wcslcpy(videodata->ime_readingstring, s, len);
}
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else {
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LPINPUTCONTEXT2 lpimc = videodata->ImmLockIMC(himc);
LPBYTE p = 0;
s = 0;
switch (id)
{
case IMEID_CHT_VER42:
case IMEID_CHT_VER43:
case IMEID_CHT_VER44:
p = *(LPBYTE *)((LPBYTE)videodata->ImmLockIMCC(lpimc->hPrivate) + 24);
if (!p)
break;
len = *(DWORD *)(p + 7*4 + 32*4);
s = (WCHAR *)(p + 56);
break;
case IMEID_CHT_VER51:
case IMEID_CHT_VER52:
case IMEID_CHS_VER53:
p = *(LPBYTE *)((LPBYTE)videodata->ImmLockIMCC(lpimc->hPrivate) + 4);
if (!p)
break;
p = *(LPBYTE *)((LPBYTE)p + 1*4 + 5*4);
if (!p)
break;
len = *(DWORD *)(p + 1*4 + (16*2+2*4) + 5*4 + 16*2);
s = (WCHAR *)(p + 1*4 + (16*2+2*4) + 5*4);
break;
case IMEID_CHS_VER41:
{
int offset = (IME_GetId(videodata, 1) >= 0x00000002) ? 8 : 7;
p = *(LPBYTE *)((LPBYTE)videodata->ImmLockIMCC(lpimc->hPrivate) + offset * 4);
if (!p)
break;
len = *(DWORD *)(p + 7*4 + 16*2*4);
s = (WCHAR *)(p + 6*4 + 16*2*1);
}
break;
case IMEID_CHS_VER42:
if (osversion.dwPlatformId != VER_PLATFORM_WIN32_NT)
break;
p = *(LPBYTE *)((LPBYTE)videodata->ImmLockIMCC(lpimc->hPrivate) + 1*4 + 1*4 + 6*4);
if (!p)
break;
len = *(DWORD *)(p + 1*4 + (16*2+2*4) + 5*4 + 16*2);
s = (WCHAR *)(p + 1*4 + (16*2+2*4) + 5*4);
break;
}
if (s)
SDL_wcslcpy(videodata->ime_readingstring, s, len + 1);
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videodata->ImmUnlockIMCC(lpimc->hPrivate);
videodata->ImmUnlockIMC(himc);
}
ImmReleaseContext(hwnd, himc);
IME_SendEditingEvent(videodata);
}
static void
IME_InputLangChanged(SDL_VideoData *videodata)
{
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UINT lang = PRIMLANG();
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HWND hwndime = 0;
IME_UpdateInputLocale(videodata);
IME_SetupAPI(videodata);
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if (lang != PRIMLANG()) {
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IME_ClearComposition(videodata);
}
hwndime = ImmGetDefaultIMEWnd(videodata->ime_hwnd_current);
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if (hwndime) {
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SendMessageA(hwndime, WM_IME_CONTROL, IMC_OPENSTATUSWINDOW, 0);
SendMessageA(hwndime, WM_IME_CONTROL, IMC_CLOSESTATUSWINDOW, 0);
}
}
static DWORD
IME_GetId(SDL_VideoData *videodata, UINT uIndex)
{
static HKL hklprev = 0;
static DWORD dwRet[2] = {0};
DWORD dwVerSize = 0;
DWORD dwVerHandle = 0;
LPVOID lpVerBuffer = 0;
LPVOID lpVerData = 0;
UINT cbVerData = 0;
char szTemp[256];
HKL hkl = 0;
DWORD dwLang = 0;
if (uIndex >= sizeof(dwRet) / sizeof(dwRet[0]))
return 0;
hkl = videodata->ime_hkl;
if (hklprev == hkl)
return dwRet[uIndex];
hklprev = hkl;
dwLang = ((DWORD)hkl & 0xffff);
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if (videodata->ime_uiless && LANG() == LANG_CHT) {
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dwRet[0] = IMEID_CHT_VER_VISTA;
dwRet[1] = 0;
return dwRet[0];
}
if (hkl != CHT_HKL_NEW_PHONETIC
&& hkl != CHT_HKL_NEW_CHANG_JIE
&& hkl != CHT_HKL_NEW_QUICK
&& hkl != CHT_HKL_HK_CANTONESE
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&& hkl != CHS_HKL) {
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dwRet[0] = dwRet[1] = 0;
return dwRet[uIndex];
}
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if (ImmGetIMEFileNameA(hkl, szTemp, sizeof(szTemp) - 1) <= 0) {
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dwRet[0] = dwRet[1] = 0;
return dwRet[uIndex];
}
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if (!videodata->GetReadingString) {
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#define LCID_INVARIANT MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT)
if (CompareStringA(LCID_INVARIANT, NORM_IGNORECASE, szTemp, -1, CHT_IMEFILENAME1, -1) != 2
&& CompareStringA(LCID_INVARIANT, NORM_IGNORECASE, szTemp, -1, CHT_IMEFILENAME2, -1) != 2
&& CompareStringA(LCID_INVARIANT, NORM_IGNORECASE, szTemp, -1, CHT_IMEFILENAME3, -1) != 2
&& CompareStringA(LCID_INVARIANT, NORM_IGNORECASE, szTemp, -1, CHS_IMEFILENAME1, -1) != 2
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&& CompareStringA(LCID_INVARIANT, NORM_IGNORECASE, szTemp, -1, CHS_IMEFILENAME2, -1) != 2) {
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dwRet[0] = dwRet[1] = 0;
return dwRet[uIndex];
}
#undef LCID_INVARIANT
dwVerSize = GetFileVersionInfoSizeA(szTemp, &dwVerHandle);
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if (dwVerSize) {
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lpVerBuffer = SDL_malloc(dwVerSize);
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if (lpVerBuffer) {
if (GetFileVersionInfoA(szTemp, dwVerHandle, dwVerSize, lpVerBuffer)) {
if (VerQueryValueA(lpVerBuffer, "\\", &lpVerData, &cbVerData)) {
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#define pVerFixedInfo ((VS_FIXEDFILEINFO FAR*)lpVerData)
DWORD dwVer = pVerFixedInfo->dwFileVersionMS;
dwVer = (dwVer & 0x00ff0000) << 8 | (dwVer & 0x000000ff) << 16;
if (videodata->GetReadingString ||
dwLang == LANG_CHT && (
dwVer == MAKEIMEVERSION(4, 2) ||
dwVer == MAKEIMEVERSION(4, 3) ||
dwVer == MAKEIMEVERSION(4, 4) ||
dwVer == MAKEIMEVERSION(5, 0) ||
dwVer == MAKEIMEVERSION(5, 1) ||
dwVer == MAKEIMEVERSION(5, 2) ||
dwVer == MAKEIMEVERSION(6, 0))
||
dwLang == LANG_CHS && (
dwVer == MAKEIMEVERSION(4, 1) ||
dwVer == MAKEIMEVERSION(4, 2) ||
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dwVer == MAKEIMEVERSION(5, 3))) {
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dwRet[0] = dwVer | dwLang;
dwRet[1] = pVerFixedInfo->dwFileVersionLS;
SDL_free(lpVerBuffer);
return dwRet[0];
}
#undef pVerFixedInfo
}
}
}
SDL_free(lpVerBuffer);
}
}
dwRet[0] = dwRet[1] = 0;
return dwRet[uIndex];
}
static void
IME_SetupAPI(SDL_VideoData *videodata)
{
char ime_file[MAX_PATH + 1];
HMODULE hime = 0;
HKL hkl = 0;
videodata->GetReadingString = 0;
videodata->ShowReadingWindow = 0;
if (videodata->ime_uiless)
return;
hkl = videodata->ime_hkl;
if (ImmGetIMEFileNameA(hkl, ime_file, sizeof(ime_file) - 1) <= 0)
return;
hime = LoadLibraryA(ime_file);
if (!hime)
return;
videodata->GetReadingString = (UINT (WINAPI *)(HIMC, UINT, LPWSTR, PINT, BOOL*, PUINT))
GetProcAddress(hime, "GetReadingString");
videodata->ShowReadingWindow = (BOOL (WINAPI *)(HIMC, BOOL))
GetProcAddress(hime, "ShowReadingWindow");
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if (videodata->ShowReadingWindow) {
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HIMC himc = ImmGetContext(videodata->ime_hwnd_current);
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if (himc) {
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videodata->ShowReadingWindow(himc, FALSE);
ImmReleaseContext(videodata->ime_hwnd_current, himc);
}
}
}
static void
IME_SetWindow(SDL_VideoData* videodata, HWND hwnd)
{
videodata->ime_hwnd_current = hwnd;
if (videodata->ime_threadmgr) {
struct ITfDocumentMgr *document_mgr = 0;
if (SUCCEEDED(videodata->ime_threadmgr->lpVtbl->AssociateFocus(videodata->ime_threadmgr, hwnd, NULL, &document_mgr))) {
if (document_mgr)
document_mgr->lpVtbl->Release(document_mgr);
}
}
}
static void
IME_UpdateInputLocale(SDL_VideoData *videodata)
{
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static HKL hklprev = 0;
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videodata->ime_hkl = GetKeyboardLayout(0);
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if (hklprev == videodata->ime_hkl)
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hklprev = videodata->ime_hkl;
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}
static void
IME_ClearComposition(SDL_VideoData *videodata)
{
HIMC himc = 0;
if (!videodata->ime_initialized)
return;
himc = ImmGetContext(videodata->ime_hwnd_current);
if (!himc)
return;
ImmNotifyIME(himc, NI_COMPOSITIONSTR, CPS_CANCEL, 0);
if (videodata->ime_uiless)
ImmSetCompositionString(himc, SCS_SETSTR, TEXT(""), sizeof(TCHAR), TEXT(""), sizeof(TCHAR));
ImmNotifyIME(himc, NI_CLOSECANDIDATE, 0, 0);
ImmReleaseContext(videodata->ime_hwnd_current, himc);
SDL_SendEditingText("", 0, 0);
}
static void
IME_ClearEditing(SDL_VideoData *videodata)
{
}
static void
IME_GetCompositionString(SDL_VideoData *videodata, HIMC himc, DWORD string)
{
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LONG length = ImmGetCompositionStringW(himc, string, videodata->ime_composition, sizeof(videodata->ime_composition));
if (length < 0)
length = 0;
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length /= sizeof(videodata->ime_composition[0]);
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videodata->ime_cursor = LOWORD(ImmGetCompositionStringW(himc, GCS_CURSORPOS, 0, 0));
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if (videodata->ime_composition[videodata->ime_cursor] == 0x3000) {
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for (i = videodata->ime_cursor + 1; i < length; ++i)
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videodata->ime_composition[i - 1] = videodata->ime_composition[i];
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--length;
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videodata->ime_composition[length] = 0;
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}
static void
IME_SendInputEvent(SDL_VideoData *videodata)
{
char *s = 0;
s = WIN_StringToUTF8(videodata->ime_composition);
SDL_SendKeyboardText(s);
SDL_free(s);
videodata->ime_composition[0] = 0;
videodata->ime_readingstring[0] = 0;
videodata->ime_cursor = 0;
}
static void
IME_SendEditingEvent(SDL_VideoData *videodata)
{
char *s = 0;
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WCHAR buffer[SDL_TEXTEDITINGEVENT_TEXT_SIZE];
buffer[0] = 0;
if (videodata->ime_readingstring[0]) {
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size_t len = SDL_min(SDL_wcslen(videodata->ime_composition), (size_t)videodata->ime_cursor);
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SDL_wcslcpy(buffer, videodata->ime_composition, len + 1);
SDL_wcslcat(buffer, videodata->ime_readingstring, sizeof(buffer));
SDL_wcslcat(buffer, &videodata->ime_composition[len], sizeof(buffer) - len);
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else {
SDL_wcslcpy(buffer, videodata->ime_composition, sizeof(videodata->ime_composition));
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s = WIN_StringToUTF8(buffer);
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SDL_SendEditingText(s, videodata->ime_cursor + SDL_wcslen(videodata->ime_readingstring), 0);
SDL_free(s);
}
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SDL_bool
IME_HandleMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM *lParam, SDL_VideoData *videodata)
{
SDL_bool trap = SDL_FALSE;
HIMC himc = 0;
if (!videodata->ime_initialized || !videodata->ime_available || !videodata->ime_enabled)
return SDL_FALSE;
switch (msg)
{
case WM_INPUTLANGCHANGE:
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//IME_InputLangChanged(videodata);
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break;
case WM_IME_SETCONTEXT:
*lParam = 0;
break;
case WM_IME_STARTCOMPOSITION:
trap = SDL_TRUE;
break;
case WM_IME_COMPOSITION:
trap = SDL_TRUE;
himc = ImmGetContext(hwnd);
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if (*lParam & GCS_RESULTSTR) {
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IME_GetCompositionString(videodata, himc, GCS_RESULTSTR);
IME_SendInputEvent(videodata);
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if (*lParam & GCS_COMPSTR) {
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if (!videodata->ime_uiless)
videodata->ime_readingstring[0] = 0;
IME_GetCompositionString(videodata, himc, GCS_COMPSTR);
IME_SendEditingEvent(videodata);
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}
ImmReleaseContext(hwnd, himc);
break;
case WM_IME_ENDCOMPOSITION:
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videodata->ime_composition[0] = 0;
videodata->ime_readingstring[0] = 0;
videodata->ime_cursor = 0;
SDL_SendEditingText("", 0, 0);
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break;
case WM_IME_NOTIFY:
switch (wParam)
{
case IMN_SETCONVERSIONMODE:
case IMN_SETOPENSTATUS:
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IME_UpdateInputLocale(videodata);
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break;
case IMN_OPENCANDIDATE:
case IMN_CHANGECANDIDATE:
trap = SDL_TRUE;
break;
case IMN_CLOSECANDIDATE:
trap = SDL_TRUE;
break;
case IMN_PRIVATE:
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{
DWORD dwId = IME_GetId(videodata, 0);
IME_GetReadingString(videodata, hwnd);
switch (dwId)
{
case IMEID_CHT_VER42:
case IMEID_CHT_VER43:
case IMEID_CHT_VER44:
case IMEID_CHS_VER41:
case IMEID_CHS_VER42:
if (*lParam == 1 || *lParam == 2)
trap = SDL_TRUE;
break;
case IMEID_CHT_VER50:
case IMEID_CHT_VER51:
case IMEID_CHT_VER52:
case IMEID_CHT_VER60:
case IMEID_CHS_VER53:
if (*lParam == 16
|| *lParam == 17
|| *lParam == 26
|| *lParam == 27
|| *lParam == 28)
trap = SDL_TRUE;
break;
}
}
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break;
default:
trap = SDL_TRUE;
break;
}
break;
}
return trap;
}
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STDMETHODIMP_(ULONG) TSFSink_AddRef(TSFSink *sink)
{
return ++sink->refcount;
}
STDMETHODIMP_(ULONG)TSFSink_Release(TSFSink *sink)
{
--sink->refcount;
if (sink->refcount == 0)
{
SDL_free(sink);
return 0;
}
return sink->refcount;
}
STDMETHODIMP UIElementSink_QueryInterface(TSFSink *sink, REFIID riid, PVOID *ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = 0;
if (SDL_IsEqualIID(riid, &IID_IUnknown))
*ppv = (IUnknown *)sink;
else if (SDL_IsEqualIID(riid, &IID_ITfUIElementSink))
*ppv = (ITfUIElementSink *)sink;
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if (*ppv) {
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TSFSink_AddRef(sink);
return S_OK;
}
return E_NOINTERFACE;
}
ITfUIElement *UILess_GetUIElement(SDL_VideoData *videodata, DWORD dwUIElementId)
{
ITfUIElementMgr *puiem = 0;
ITfUIElement *pelem = 0;
ITfThreadMgrEx *threadmgrex = videodata->ime_threadmgrex;
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if (SUCCEEDED(threadmgrex->lpVtbl->QueryInterface(threadmgrex, &IID_ITfUIElementMgr, (LPVOID *)&puiem))) {
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puiem->lpVtbl->GetUIElement(puiem, dwUIElementId, &pelem);
puiem->lpVtbl->Release(puiem);
}
return pelem;
}
STDMETHODIMP UIElementSink_BeginUIElement(TSFSink *sink, DWORD dwUIElementId, BOOL *pbShow)
{
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ITfUIElement *element = UILess_GetUIElement((SDL_VideoData *)sink->data, dwUIElementId);
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ITfReadingInformationUIElement *preading = 0;
SDL_VideoData *videodata = (SDL_VideoData *)sink->data;
826
if (!element)
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return E_INVALIDARG;
*pbShow = FALSE;
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if (SUCCEEDED(element->lpVtbl->QueryInterface(element, &IID_ITfReadingInformationUIElement, (LPVOID *)&preading))) {
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if (SUCCEEDED(preading->lpVtbl->GetString(preading, &bstr)) && bstr) {
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WCHAR *s = (WCHAR *)bstr;
SysFreeString(bstr);
}
preading->lpVtbl->Release(preading);
}
return S_OK;
}
STDMETHODIMP UIElementSink_UpdateUIElement(TSFSink *sink, DWORD dwUIElementId)
{
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ITfUIElement *element = UILess_GetUIElement((SDL_VideoData *)sink->data, dwUIElementId);
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ITfReadingInformationUIElement *preading = 0;
SDL_VideoData *videodata = (SDL_VideoData *)sink->data;
846
if (!element)
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return E_INVALIDARG;
849
if (SUCCEEDED(element->lpVtbl->QueryInterface(element, &IID_ITfReadingInformationUIElement, (LPVOID *)&preading))) {
851
if (SUCCEEDED(preading->lpVtbl->GetString(preading, &bstr)) && bstr) {
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WCHAR *s = (WCHAR *)bstr;
SDL_wcslcpy(videodata->ime_readingstring, s, sizeof(videodata->ime_readingstring));
IME_SendEditingEvent(videodata);
SysFreeString(bstr);
}
preading->lpVtbl->Release(preading);
}
return S_OK;
}
STDMETHODIMP UIElementSink_EndUIElement(TSFSink *sink, DWORD dwUIElementId)
{
864
ITfUIElement *element = UILess_GetUIElement((SDL_VideoData *)sink->data, dwUIElementId);
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ITfReadingInformationUIElement *preading = 0;
SDL_VideoData *videodata = (SDL_VideoData *)sink->data;
867
if (!element)
868
869
return E_INVALIDARG;
870
if (SUCCEEDED(element->lpVtbl->QueryInterface(element, &IID_ITfReadingInformationUIElement, (LPVOID *)&preading))) {
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videodata->ime_readingstring[0] = 0;
IME_SendEditingEvent(videodata);
preading->lpVtbl->Release(preading);
}
return S_OK;
}
STDMETHODIMP IPPASink_QueryInterface(TSFSink *sink, REFIID riid, PVOID *ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = 0;
if (SDL_IsEqualIID(riid, &IID_IUnknown))
*ppv = (IUnknown *)sink;
else if (SDL_IsEqualIID(riid, &IID_ITfInputProcessorProfileActivationSink))
*ppv = (ITfInputProcessorProfileActivationSink *)sink;
889
if (*ppv) {
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904
905
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918
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920
921
922
923
924
925
926
TSFSink_AddRef(sink);
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP IPPASink_OnActivated(TSFSink *sink, DWORD dwProfileType, LANGID langid, REFCLSID clsid, REFGUID catid, REFGUID guidProfile, HKL hkl, DWORD dwFlags)
{
if (SDL_IsEqualIID(catid, &GUID_TFCAT_TIP_KEYBOARD) && (dwFlags & TF_IPSINK_FLAG_ACTIVE))
IME_InputLangChanged((SDL_VideoData *)sink->data);
return S_OK;
}
static void *vtUIElementSink[] = {
(void *)(UIElementSink_QueryInterface),
(void *)(TSFSink_AddRef),
(void *)(TSFSink_Release),
(void *)(UIElementSink_BeginUIElement),
(void *)(UIElementSink_UpdateUIElement),
(void *)(UIElementSink_EndUIElement)
};
static void *vtIPPASink[] = {
(void *)(IPPASink_QueryInterface),
(void *)(TSFSink_AddRef),
(void *)(TSFSink_Release),
(void *)(IPPASink_OnActivated)
};
static void
UILess_EnableUIUpdates(SDL_VideoData *videodata)
{
ITfSource *source = 0;
if (!videodata->ime_threadmgrex || videodata->ime_uielemsinkcookie != TF_INVALID_COOKIE)
return;
927
if (SUCCEEDED(videodata->ime_threadmgrex->lpVtbl->QueryInterface(videodata->ime_threadmgrex, &IID_ITfSource, (LPVOID *)&source))) {
928
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source->lpVtbl->AdviseSink(source, &IID_ITfUIElementSink, (IUnknown *)videodata->ime_uielemsink, &videodata->ime_uielemsinkcookie);
source->lpVtbl->Release(source);
}
}
static void
UILess_DisableUIUpdates(SDL_VideoData *videodata)
{
ITfSource *source = 0;
if (!videodata->ime_threadmgrex || videodata->ime_uielemsinkcookie == TF_INVALID_COOKIE)
return;
940
if (SUCCEEDED(videodata->ime_threadmgrex->lpVtbl->QueryInterface(videodata->ime_threadmgrex, &IID_ITfSource, (LPVOID *)&source))) {
941
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948
949
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951
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953
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969
source->lpVtbl->UnadviseSink(source, videodata->ime_uielemsinkcookie);
videodata->ime_uielemsinkcookie = TF_INVALID_COOKIE;
source->lpVtbl->Release(source);
}
}
static SDL_bool
UILess_SetupSinks(SDL_VideoData *videodata)
{
TfClientId clientid = 0;
SDL_bool result = SDL_FALSE;
ITfSource *source = 0;
if (FAILED(CoCreateInstance(&CLSID_TF_ThreadMgr, NULL, CLSCTX_INPROC_SERVER, &IID_ITfThreadMgrEx, &videodata->ime_threadmgrex)))
return SDL_FALSE;
if (FAILED(videodata->ime_threadmgrex->lpVtbl->ActivateEx(videodata->ime_threadmgrex, &clientid, TF_TMAE_UIELEMENTENABLEDONLY)))
return SDL_FALSE;
videodata->ime_uielemsink = SDL_malloc(sizeof(TSFSink));
videodata->ime_ippasink = SDL_malloc(sizeof(TSFSink));
videodata->ime_uielemsink->lpVtbl = vtUIElementSink;
videodata->ime_uielemsink->refcount = 1;
videodata->ime_uielemsink->data = videodata;
videodata->ime_ippasink->lpVtbl = vtIPPASink;
videodata->ime_ippasink->refcount = 1;
videodata->ime_ippasink->data = videodata;
970
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972
if (SUCCEEDED(videodata->ime_threadmgrex->lpVtbl->QueryInterface(videodata->ime_threadmgrex, &IID_ITfSource, (LPVOID *)&source))) {
if (SUCCEEDED(source->lpVtbl->AdviseSink(source, &IID_ITfUIElementSink, (IUnknown *)videodata->ime_uielemsink, &videodata->ime_uielemsinkcookie))) {
if (SUCCEEDED(source->lpVtbl->AdviseSink(source, &IID_ITfInputProcessorProfileActivationSink, (IUnknown *)videodata->ime_ippasink, &videodata->ime_alpnsinkcookie))) {
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980
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982
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984
985
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987
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989
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991
result = SDL_TRUE;
}
}
source->lpVtbl->Release(source);
}
return result;
}
#define SAFE_RELEASE(p) \
{ \
if (p) { \
(p)->lpVtbl->Release((p)); \
(p) = 0; \
} \
}
static void
UILess_ReleaseSinks(SDL_VideoData *videodata)
{
992
993
994
995
996
ITfSource *source = 0;
if (videodata->ime_threadmgrex && SUCCEEDED(videodata->ime_threadmgrex->lpVtbl->QueryInterface(videodata->ime_threadmgrex, &IID_ITfSource, &source))) {
source->lpVtbl->UnadviseSink(source, videodata->ime_uielemsinkcookie);
source->lpVtbl->UnadviseSink(source, videodata->ime_alpnsinkcookie);
SAFE_RELEASE(source);
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1000
videodata->ime_threadmgrex->lpVtbl->Deactivate(videodata->ime_threadmgrex);
SAFE_RELEASE(videodata->ime_threadmgrex);
TSFSink_Release(videodata->ime_uielemsink);
videodata->ime_uielemsink = 0;