| 1 | /* Input event support for Emacs on the Microsoft W32 API. |
| 2 | Copyright (C) 1992-1993, 1995, 2001-2012 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software: you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation, either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* |
| 20 | Drew Bliss 01-Oct-93 |
| 21 | Adapted from ntkbd.c by Tim Fleehart |
| 22 | */ |
| 23 | |
| 24 | |
| 25 | #include <config.h> |
| 26 | #include <stdio.h> |
| 27 | #include <windows.h> |
| 28 | #include <setjmp.h> |
| 29 | |
| 30 | #ifndef MOUSE_MOVED |
| 31 | #define MOUSE_MOVED 1 |
| 32 | #endif |
| 33 | |
| 34 | #include "lisp.h" |
| 35 | #include "keyboard.h" |
| 36 | #include "frame.h" |
| 37 | #include "dispextern.h" |
| 38 | #include "blockinput.h" |
| 39 | #include "termhooks.h" |
| 40 | #include "w32heap.h" |
| 41 | #include "w32term.h" |
| 42 | |
| 43 | /* stdin, from w32console.c */ |
| 44 | extern HANDLE keyboard_handle; |
| 45 | |
| 46 | /* Info for last mouse motion */ |
| 47 | static COORD movement_pos; |
| 48 | static Time movement_time; |
| 49 | |
| 50 | /* from w32fns.c */ |
| 51 | extern unsigned int map_keypad_keys (unsigned int, unsigned int); |
| 52 | extern unsigned int w32_key_to_modifier (int key); |
| 53 | |
| 54 | /* Event queue */ |
| 55 | #define EVENT_QUEUE_SIZE 50 |
| 56 | static INPUT_RECORD event_queue[EVENT_QUEUE_SIZE]; |
| 57 | static INPUT_RECORD *queue_ptr = event_queue, *queue_end = event_queue; |
| 58 | |
| 59 | /* Temporarily store lead byte of DBCS input sequences. */ |
| 60 | static char dbcs_lead = 0; |
| 61 | |
| 62 | static int |
| 63 | fill_queue (BOOL block) |
| 64 | { |
| 65 | BOOL rc; |
| 66 | DWORD events_waiting; |
| 67 | |
| 68 | if (queue_ptr < queue_end) |
| 69 | return queue_end-queue_ptr; |
| 70 | |
| 71 | if (!block) |
| 72 | { |
| 73 | /* Check to see if there are some events to read before we try |
| 74 | because we can't block. */ |
| 75 | if (!GetNumberOfConsoleInputEvents (keyboard_handle, &events_waiting)) |
| 76 | return -1; |
| 77 | if (events_waiting == 0) |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | rc = ReadConsoleInput (keyboard_handle, event_queue, EVENT_QUEUE_SIZE, |
| 82 | &events_waiting); |
| 83 | if (!rc) |
| 84 | return -1; |
| 85 | queue_ptr = event_queue; |
| 86 | queue_end = event_queue + events_waiting; |
| 87 | return (int) events_waiting; |
| 88 | } |
| 89 | |
| 90 | /* In a generic, multi-frame world this should take a console handle |
| 91 | and return the frame for it |
| 92 | |
| 93 | Right now, there's only one frame so return it. */ |
| 94 | static FRAME_PTR |
| 95 | get_frame (void) |
| 96 | { |
| 97 | return SELECTED_FRAME (); |
| 98 | } |
| 99 | |
| 100 | /* Translate console modifiers to emacs modifiers. |
| 101 | German keyboard support (Kai Morgan Zeise 2/18/95). */ |
| 102 | int |
| 103 | w32_kbd_mods_to_emacs (DWORD mods, WORD key) |
| 104 | { |
| 105 | int retval = 0; |
| 106 | |
| 107 | /* If we recognize right-alt and left-ctrl as AltGr, and it has been |
| 108 | pressed, first remove those modifiers. */ |
| 109 | if (!NILP (Vw32_recognize_altgr) |
| 110 | && (mods & (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 111 | == (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 112 | mods &= ~ (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED); |
| 113 | |
| 114 | if (mods & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)) |
| 115 | retval = ((NILP (Vw32_alt_is_meta)) ? alt_modifier : meta_modifier); |
| 116 | |
| 117 | if (mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 118 | { |
| 119 | retval |= ctrl_modifier; |
| 120 | if ((mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 121 | == (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 122 | retval |= meta_modifier; |
| 123 | } |
| 124 | |
| 125 | if (mods & LEFT_WIN_PRESSED) |
| 126 | retval |= w32_key_to_modifier (VK_LWIN); |
| 127 | if (mods & RIGHT_WIN_PRESSED) |
| 128 | retval |= w32_key_to_modifier (VK_RWIN); |
| 129 | if (mods & APPS_PRESSED) |
| 130 | retval |= w32_key_to_modifier (VK_APPS); |
| 131 | if (mods & SCROLLLOCK_ON) |
| 132 | retval |= w32_key_to_modifier (VK_SCROLL); |
| 133 | |
| 134 | /* Just in case someone wanted the original behavior, make it |
| 135 | optional by setting w32-capslock-is-shiftlock to t. */ |
| 136 | if (NILP (Vw32_capslock_is_shiftlock) |
| 137 | /* Keys that should _not_ be affected by CapsLock. */ |
| 138 | && ( (key == VK_BACK) |
| 139 | || (key == VK_TAB) |
| 140 | || (key == VK_CLEAR) |
| 141 | || (key == VK_RETURN) |
| 142 | || (key == VK_ESCAPE) |
| 143 | || ((key >= VK_SPACE) && (key <= VK_HELP)) |
| 144 | || ((key >= VK_NUMPAD0) && (key <= VK_F24)) |
| 145 | || ((key >= VK_NUMPAD_CLEAR) && (key <= VK_NUMPAD_DELETE)) |
| 146 | )) |
| 147 | { |
| 148 | /* Only consider shift state. */ |
| 149 | if ((mods & SHIFT_PRESSED) != 0) |
| 150 | retval |= shift_modifier; |
| 151 | } |
| 152 | else |
| 153 | { |
| 154 | /* Ignore CapsLock state if not enabled. */ |
| 155 | if (NILP (Vw32_enable_caps_lock)) |
| 156 | mods &= ~CAPSLOCK_ON; |
| 157 | if ((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) != 0) |
| 158 | retval |= shift_modifier; |
| 159 | } |
| 160 | |
| 161 | return retval; |
| 162 | } |
| 163 | |
| 164 | #if 0 |
| 165 | /* Return nonzero if the virtual key is a dead key. */ |
| 166 | static int |
| 167 | is_dead_key (int wparam) |
| 168 | { |
| 169 | unsigned int code = MapVirtualKey (wparam, 2); |
| 170 | |
| 171 | /* Windows 95 returns 0x8000, NT returns 0x80000000. */ |
| 172 | return (code & 0x80008000) ? 1 : 0; |
| 173 | } |
| 174 | #endif |
| 175 | |
| 176 | /* The return code indicates key code size. */ |
| 177 | int |
| 178 | w32_kbd_patch_key (KEY_EVENT_RECORD *event) |
| 179 | { |
| 180 | unsigned int key_code = event->wVirtualKeyCode; |
| 181 | unsigned int mods = event->dwControlKeyState; |
| 182 | BYTE keystate[256]; |
| 183 | static BYTE ansi_code[4]; |
| 184 | static int isdead = 0; |
| 185 | |
| 186 | if (isdead == 2) |
| 187 | { |
| 188 | event->uChar.AsciiChar = ansi_code[2]; |
| 189 | isdead = 0; |
| 190 | return 1; |
| 191 | } |
| 192 | if (event->uChar.AsciiChar != 0) |
| 193 | return 1; |
| 194 | |
| 195 | memset (keystate, 0, sizeof (keystate)); |
| 196 | keystate[key_code] = 0x80; |
| 197 | if (mods & SHIFT_PRESSED) |
| 198 | keystate[VK_SHIFT] = 0x80; |
| 199 | if (mods & CAPSLOCK_ON) |
| 200 | keystate[VK_CAPITAL] = 1; |
| 201 | /* If we recognize right-alt and left-ctrl as AltGr, set the key |
| 202 | states accordingly before invoking ToAscii. */ |
| 203 | if (!NILP (Vw32_recognize_altgr) |
| 204 | && (mods & LEFT_CTRL_PRESSED) && (mods & RIGHT_ALT_PRESSED)) |
| 205 | { |
| 206 | keystate[VK_CONTROL] = 0x80; |
| 207 | keystate[VK_LCONTROL] = 0x80; |
| 208 | keystate[VK_MENU] = 0x80; |
| 209 | keystate[VK_RMENU] = 0x80; |
| 210 | } |
| 211 | |
| 212 | #if 0 |
| 213 | /* Because of an OS bug, ToAscii corrupts the stack when called to |
| 214 | convert a dead key in console mode on NT4. Unfortunately, trying |
| 215 | to check for dead keys using MapVirtualKey doesn't work either - |
| 216 | these functions apparently use internal information about keyboard |
| 217 | layout which doesn't get properly updated in console programs when |
| 218 | changing layout (though apparently it gets partly updated, |
| 219 | otherwise ToAscii wouldn't crash). */ |
| 220 | if (is_dead_key (event->wVirtualKeyCode)) |
| 221 | return 0; |
| 222 | #endif |
| 223 | |
| 224 | /* On NT, call ToUnicode instead and then convert to the current |
| 225 | locale's default codepage. */ |
| 226 | if (os_subtype == OS_NT) |
| 227 | { |
| 228 | WCHAR buf[128]; |
| 229 | |
| 230 | isdead = ToUnicode (event->wVirtualKeyCode, event->wVirtualScanCode, |
| 231 | keystate, buf, 128, 0); |
| 232 | if (isdead > 0) |
| 233 | { |
| 234 | char cp[20]; |
| 235 | int cpId; |
| 236 | |
| 237 | event->uChar.UnicodeChar = buf[isdead - 1]; |
| 238 | |
| 239 | GetLocaleInfo (GetThreadLocale (), |
| 240 | LOCALE_IDEFAULTANSICODEPAGE, cp, 20); |
| 241 | cpId = atoi (cp); |
| 242 | isdead = WideCharToMultiByte (cpId, 0, buf, isdead, |
| 243 | ansi_code, 4, NULL, NULL); |
| 244 | } |
| 245 | else |
| 246 | isdead = 0; |
| 247 | } |
| 248 | else |
| 249 | { |
| 250 | isdead = ToAscii (event->wVirtualKeyCode, event->wVirtualScanCode, |
| 251 | keystate, (LPWORD) ansi_code, 0); |
| 252 | } |
| 253 | |
| 254 | if (isdead == 0) |
| 255 | return 0; |
| 256 | event->uChar.AsciiChar = ansi_code[0]; |
| 257 | return isdead; |
| 258 | } |
| 259 | |
| 260 | |
| 261 | static int faked_key = 0; |
| 262 | |
| 263 | /* return code -1 means that event_queue_ptr won't be incremented. |
| 264 | In other word, this event makes two key codes. (by himi) */ |
| 265 | static int |
| 266 | key_event (KEY_EVENT_RECORD *event, struct input_event *emacs_ev, int *isdead) |
| 267 | { |
| 268 | static int mod_key_state = 0; |
| 269 | int wParam; |
| 270 | |
| 271 | *isdead = 0; |
| 272 | |
| 273 | /* Skip key-up events. */ |
| 274 | if (!event->bKeyDown) |
| 275 | { |
| 276 | switch (event->wVirtualKeyCode) |
| 277 | { |
| 278 | case VK_LWIN: |
| 279 | mod_key_state &= ~LEFT_WIN_PRESSED; |
| 280 | break; |
| 281 | case VK_RWIN: |
| 282 | mod_key_state &= ~RIGHT_WIN_PRESSED; |
| 283 | break; |
| 284 | case VK_APPS: |
| 285 | mod_key_state &= ~APPS_PRESSED; |
| 286 | break; |
| 287 | } |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | /* Ignore keystrokes we fake ourself; see below. */ |
| 292 | if (faked_key == event->wVirtualKeyCode) |
| 293 | { |
| 294 | faked_key = 0; |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | /* To make it easier to debug this code, ignore modifier keys! */ |
| 299 | switch (event->wVirtualKeyCode) |
| 300 | { |
| 301 | case VK_LWIN: |
| 302 | if (NILP (Vw32_pass_lwindow_to_system)) |
| 303 | { |
| 304 | /* Prevent system from acting on keyup (which opens the Start |
| 305 | menu if no other key was pressed) by simulating a press of |
| 306 | Space which we will ignore. */ |
| 307 | if ((mod_key_state & LEFT_WIN_PRESSED) == 0) |
| 308 | { |
| 309 | if (NUMBERP (Vw32_phantom_key_code)) |
| 310 | faked_key = XUINT (Vw32_phantom_key_code) & 255; |
| 311 | else |
| 312 | faked_key = VK_SPACE; |
| 313 | keybd_event (faked_key, (BYTE) MapVirtualKey (faked_key, 0), 0, 0); |
| 314 | } |
| 315 | } |
| 316 | mod_key_state |= LEFT_WIN_PRESSED; |
| 317 | if (!NILP (Vw32_lwindow_modifier)) |
| 318 | return 0; |
| 319 | break; |
| 320 | case VK_RWIN: |
| 321 | if (NILP (Vw32_pass_rwindow_to_system)) |
| 322 | { |
| 323 | if ((mod_key_state & RIGHT_WIN_PRESSED) == 0) |
| 324 | { |
| 325 | if (NUMBERP (Vw32_phantom_key_code)) |
| 326 | faked_key = XUINT (Vw32_phantom_key_code) & 255; |
| 327 | else |
| 328 | faked_key = VK_SPACE; |
| 329 | keybd_event (faked_key, (BYTE) MapVirtualKey (faked_key, 0), 0, 0); |
| 330 | } |
| 331 | } |
| 332 | mod_key_state |= RIGHT_WIN_PRESSED; |
| 333 | if (!NILP (Vw32_rwindow_modifier)) |
| 334 | return 0; |
| 335 | break; |
| 336 | case VK_APPS: |
| 337 | mod_key_state |= APPS_PRESSED; |
| 338 | if (!NILP (Vw32_apps_modifier)) |
| 339 | return 0; |
| 340 | break; |
| 341 | case VK_CAPITAL: |
| 342 | /* Decide whether to treat as modifier or function key. */ |
| 343 | if (NILP (Vw32_enable_caps_lock)) |
| 344 | goto disable_lock_key; |
| 345 | return 0; |
| 346 | case VK_NUMLOCK: |
| 347 | /* Decide whether to treat as modifier or function key. */ |
| 348 | if (NILP (Vw32_enable_num_lock)) |
| 349 | goto disable_lock_key; |
| 350 | return 0; |
| 351 | case VK_SCROLL: |
| 352 | /* Decide whether to treat as modifier or function key. */ |
| 353 | if (NILP (Vw32_scroll_lock_modifier)) |
| 354 | goto disable_lock_key; |
| 355 | return 0; |
| 356 | disable_lock_key: |
| 357 | /* Ensure the appropriate lock key state is off (and the |
| 358 | indicator light as well). */ |
| 359 | wParam = event->wVirtualKeyCode; |
| 360 | if (GetAsyncKeyState (wParam) & 0x8000) |
| 361 | { |
| 362 | /* Fake another press of the relevant key. Apparently, this |
| 363 | really is the only way to turn off the indicator. */ |
| 364 | faked_key = wParam; |
| 365 | keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0), |
| 366 | KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0); |
| 367 | keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0), |
| 368 | KEYEVENTF_EXTENDEDKEY | 0, 0); |
| 369 | keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0), |
| 370 | KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0); |
| 371 | } |
| 372 | break; |
| 373 | case VK_MENU: |
| 374 | case VK_CONTROL: |
| 375 | case VK_SHIFT: |
| 376 | return 0; |
| 377 | case VK_CANCEL: |
| 378 | /* Windows maps Ctrl-Pause (aka Ctrl-Break) into VK_CANCEL, |
| 379 | which is confusing for purposes of key binding; convert |
| 380 | VK_CANCEL events into VK_PAUSE events. */ |
| 381 | event->wVirtualKeyCode = VK_PAUSE; |
| 382 | break; |
| 383 | case VK_PAUSE: |
| 384 | /* Windows maps Ctrl-NumLock into VK_PAUSE, which is confusing |
| 385 | for purposes of key binding; convert these back into |
| 386 | VK_NUMLOCK events, at least when we want to see NumLock key |
| 387 | presses. (Note that there is never any possibility that |
| 388 | VK_PAUSE with Ctrl really is C-Pause as per above.) */ |
| 389 | if (NILP (Vw32_enable_num_lock) |
| 390 | && (event->dwControlKeyState |
| 391 | & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) != 0) |
| 392 | event->wVirtualKeyCode = VK_NUMLOCK; |
| 393 | break; |
| 394 | } |
| 395 | |
| 396 | /* Recognize state of Windows and Apps keys. */ |
| 397 | event->dwControlKeyState |= mod_key_state; |
| 398 | |
| 399 | /* Distinguish numeric keypad keys from extended keys. */ |
| 400 | event->wVirtualKeyCode = |
| 401 | map_keypad_keys (event->wVirtualKeyCode, |
| 402 | (event->dwControlKeyState & ENHANCED_KEY)); |
| 403 | |
| 404 | if (lispy_function_keys[event->wVirtualKeyCode] == 0) |
| 405 | { |
| 406 | if (!NILP (Vw32_recognize_altgr) |
| 407 | && (event->dwControlKeyState & LEFT_CTRL_PRESSED) |
| 408 | && (event->dwControlKeyState & RIGHT_ALT_PRESSED)) |
| 409 | { |
| 410 | /* Don't try to interpret AltGr key chords; ToAscii seems not |
| 411 | to process them correctly. */ |
| 412 | } |
| 413 | /* Handle key chords including any modifiers other than shift |
| 414 | directly, in order to preserve as much modifier information as |
| 415 | possible. */ |
| 416 | else if (event->dwControlKeyState |
| 417 | & ( RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED |
| 418 | | RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED |
| 419 | | (!NILP (Vw32_lwindow_modifier) ? LEFT_WIN_PRESSED : 0) |
| 420 | | (!NILP (Vw32_rwindow_modifier) ? RIGHT_WIN_PRESSED : 0) |
| 421 | | (!NILP (Vw32_apps_modifier) ? APPS_PRESSED : 0) |
| 422 | | (!NILP (Vw32_scroll_lock_modifier) ? SCROLLLOCK_ON : 0))) |
| 423 | { |
| 424 | /* Don't translate modified alphabetic keystrokes, so the user |
| 425 | doesn't need to constantly switch layout to type control or |
| 426 | meta keystrokes when the normal layout translates |
| 427 | alphabetic characters to non-ascii characters. */ |
| 428 | if ('A' <= event->wVirtualKeyCode && event->wVirtualKeyCode <= 'Z') |
| 429 | { |
| 430 | event->uChar.AsciiChar = event->wVirtualKeyCode; |
| 431 | if ((event->dwControlKeyState & SHIFT_PRESSED) == 0) |
| 432 | event->uChar.AsciiChar += ('a' - 'A'); |
| 433 | } |
| 434 | /* Try to handle unrecognized keystrokes by determining the |
| 435 | base character (ie. translating the base key plus shift |
| 436 | modifier). */ |
| 437 | else if (event->uChar.AsciiChar == 0) |
| 438 | w32_kbd_patch_key (event); |
| 439 | } |
| 440 | |
| 441 | if (event->uChar.AsciiChar == 0) |
| 442 | { |
| 443 | emacs_ev->kind = NO_EVENT; |
| 444 | return 0; |
| 445 | } |
| 446 | else if (event->uChar.AsciiChar > 0) |
| 447 | { |
| 448 | emacs_ev->kind = ASCII_KEYSTROKE_EVENT; |
| 449 | emacs_ev->code = event->uChar.AsciiChar; |
| 450 | } |
| 451 | else if (event->uChar.UnicodeChar > 0) |
| 452 | { |
| 453 | emacs_ev->kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT; |
| 454 | emacs_ev->code = event->uChar.UnicodeChar; |
| 455 | } |
| 456 | else |
| 457 | { |
| 458 | /* Fallback for non-Unicode versions of Windows. */ |
| 459 | wchar_t code; |
| 460 | char dbcs[2]; |
| 461 | char cp[20]; |
| 462 | int cpId; |
| 463 | |
| 464 | /* Get the codepage to interpret this key with. */ |
| 465 | GetLocaleInfo (GetThreadLocale (), |
| 466 | LOCALE_IDEFAULTANSICODEPAGE, cp, 20); |
| 467 | cpId = atoi (cp); |
| 468 | |
| 469 | dbcs[0] = dbcs_lead; |
| 470 | dbcs[1] = event->uChar.AsciiChar; |
| 471 | if (dbcs_lead) |
| 472 | { |
| 473 | dbcs_lead = 0; |
| 474 | if (!MultiByteToWideChar (cpId, 0, dbcs, 2, &code, 1)) |
| 475 | { |
| 476 | /* Garbage */ |
| 477 | DebPrint (("Invalid DBCS sequence: %d %d\n", |
| 478 | dbcs[0], dbcs[1])); |
| 479 | emacs_ev->kind = NO_EVENT; |
| 480 | } |
| 481 | } |
| 482 | else if (IsDBCSLeadByteEx (cpId, dbcs[1])) |
| 483 | { |
| 484 | dbcs_lead = dbcs[1]; |
| 485 | emacs_ev->kind = NO_EVENT; |
| 486 | } |
| 487 | else |
| 488 | { |
| 489 | if (!MultiByteToWideChar (cpId, 0, &dbcs[1], 1, &code, 1)) |
| 490 | { |
| 491 | /* Garbage */ |
| 492 | DebPrint (("Invalid character: %d\n", dbcs[1])); |
| 493 | emacs_ev->kind = NO_EVENT; |
| 494 | } |
| 495 | } |
| 496 | emacs_ev->kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT; |
| 497 | emacs_ev->code = code; |
| 498 | } |
| 499 | } |
| 500 | else |
| 501 | { |
| 502 | emacs_ev->kind = NON_ASCII_KEYSTROKE_EVENT; |
| 503 | emacs_ev->code = event->wVirtualKeyCode; |
| 504 | } |
| 505 | |
| 506 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 507 | emacs_ev->modifiers = w32_kbd_mods_to_emacs (event->dwControlKeyState, |
| 508 | event->wVirtualKeyCode); |
| 509 | emacs_ev->timestamp = GetTickCount (); |
| 510 | return 1; |
| 511 | } |
| 512 | |
| 513 | int |
| 514 | w32_console_toggle_lock_key (int vk_code, Lisp_Object new_state) |
| 515 | { |
| 516 | int cur_state = (GetKeyState (vk_code) & 1); |
| 517 | |
| 518 | if (NILP (new_state) |
| 519 | || (NUMBERP (new_state) |
| 520 | && ((XUINT (new_state)) & 1) != cur_state)) |
| 521 | { |
| 522 | faked_key = vk_code; |
| 523 | |
| 524 | keybd_event ((BYTE) vk_code, |
| 525 | (BYTE) MapVirtualKey (vk_code, 0), |
| 526 | KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0); |
| 527 | keybd_event ((BYTE) vk_code, |
| 528 | (BYTE) MapVirtualKey (vk_code, 0), |
| 529 | KEYEVENTF_EXTENDEDKEY | 0, 0); |
| 530 | keybd_event ((BYTE) vk_code, |
| 531 | (BYTE) MapVirtualKey (vk_code, 0), |
| 532 | KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0); |
| 533 | cur_state = !cur_state; |
| 534 | } |
| 535 | |
| 536 | return cur_state; |
| 537 | } |
| 538 | |
| 539 | /* Mouse position hook. */ |
| 540 | void |
| 541 | w32_console_mouse_position (FRAME_PTR *f, |
| 542 | int insist, |
| 543 | Lisp_Object *bar_window, |
| 544 | enum scroll_bar_part *part, |
| 545 | Lisp_Object *x, |
| 546 | Lisp_Object *y, |
| 547 | Time *time) |
| 548 | { |
| 549 | BLOCK_INPUT; |
| 550 | |
| 551 | insist = insist; |
| 552 | |
| 553 | *f = get_frame (); |
| 554 | *bar_window = Qnil; |
| 555 | *part = 0; |
| 556 | SELECTED_FRAME ()->mouse_moved = 0; |
| 557 | |
| 558 | XSETINT (*x, movement_pos.X); |
| 559 | XSETINT (*y, movement_pos.Y); |
| 560 | *time = movement_time; |
| 561 | |
| 562 | UNBLOCK_INPUT; |
| 563 | } |
| 564 | |
| 565 | /* Remember mouse motion and notify emacs. */ |
| 566 | static void |
| 567 | mouse_moved_to (int x, int y) |
| 568 | { |
| 569 | /* If we're in the same place, ignore it */ |
| 570 | if (x != movement_pos.X || y != movement_pos.Y) |
| 571 | { |
| 572 | SELECTED_FRAME ()->mouse_moved = 1; |
| 573 | movement_pos.X = x; |
| 574 | movement_pos.Y = y; |
| 575 | movement_time = GetTickCount (); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | /* Consoles return button bits in a strange order: |
| 580 | least significant - Leftmost button |
| 581 | next - Rightmost button |
| 582 | next - Leftmost+1 |
| 583 | next - Leftmost+2... |
| 584 | |
| 585 | Assume emacs likes three button mice, so |
| 586 | Left == 0 |
| 587 | Middle == 1 |
| 588 | Right == 2 |
| 589 | Others increase from there. */ |
| 590 | |
| 591 | #define NUM_TRANSLATED_MOUSE_BUTTONS 3 |
| 592 | static int emacs_button_translation[NUM_TRANSLATED_MOUSE_BUTTONS] = |
| 593 | { |
| 594 | 0, 2, 1 |
| 595 | }; |
| 596 | |
| 597 | static int |
| 598 | do_mouse_event (MOUSE_EVENT_RECORD *event, |
| 599 | struct input_event *emacs_ev) |
| 600 | { |
| 601 | static DWORD button_state = 0; |
| 602 | DWORD but_change, mask; |
| 603 | int i; |
| 604 | |
| 605 | if (event->dwEventFlags == MOUSE_MOVED) |
| 606 | { |
| 607 | /* For movement events we just note that the mouse has moved |
| 608 | so that emacs will generate drag events. */ |
| 609 | mouse_moved_to (event->dwMousePosition.X, event->dwMousePosition.Y); |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | /* It looks like the console code sends us a mouse event with |
| 614 | dwButtonState == 0 when a window is activated. Ignore this case. */ |
| 615 | if (event->dwButtonState == button_state) |
| 616 | return 0; |
| 617 | |
| 618 | emacs_ev->kind = MOUSE_CLICK_EVENT; |
| 619 | |
| 620 | /* Find out what button has changed state since the last button event. */ |
| 621 | but_change = button_state ^ event->dwButtonState; |
| 622 | mask = 1; |
| 623 | for (i = 0; mask; i++, mask <<= 1) |
| 624 | if (but_change & mask) |
| 625 | { |
| 626 | if (i < NUM_TRANSLATED_MOUSE_BUTTONS) |
| 627 | emacs_ev->code = emacs_button_translation[i]; |
| 628 | else |
| 629 | emacs_ev->code = i; |
| 630 | break; |
| 631 | } |
| 632 | |
| 633 | button_state = event->dwButtonState; |
| 634 | emacs_ev->timestamp = GetTickCount (); |
| 635 | emacs_ev->modifiers = w32_kbd_mods_to_emacs (event->dwControlKeyState, 0) | |
| 636 | ((event->dwButtonState & mask) ? down_modifier : up_modifier); |
| 637 | |
| 638 | XSETFASTINT (emacs_ev->x, event->dwMousePosition.X); |
| 639 | XSETFASTINT (emacs_ev->y, event->dwMousePosition.Y); |
| 640 | /* for Mule 2.2 (Based on Emacs 19.28 */ |
| 641 | #ifdef MULE |
| 642 | XSET (emacs_ev->frame_or_window, Lisp_Frame, get_frame ()); |
| 643 | #else |
| 644 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 645 | #endif |
| 646 | |
| 647 | return 1; |
| 648 | } |
| 649 | |
| 650 | static void |
| 651 | resize_event (WINDOW_BUFFER_SIZE_RECORD *event) |
| 652 | { |
| 653 | FRAME_PTR f = get_frame (); |
| 654 | |
| 655 | change_frame_size (f, event->dwSize.Y, event->dwSize.X, 0, 1, 0); |
| 656 | SET_FRAME_GARBAGED (f); |
| 657 | } |
| 658 | |
| 659 | static void |
| 660 | maybe_generate_resize_event (void) |
| 661 | { |
| 662 | CONSOLE_SCREEN_BUFFER_INFO info; |
| 663 | FRAME_PTR f = get_frame (); |
| 664 | |
| 665 | GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &info); |
| 666 | |
| 667 | /* It is okay to call this unconditionally, since it will do nothing |
| 668 | if the size hasn't actually changed. */ |
| 669 | change_frame_size (f, |
| 670 | 1 + info.srWindow.Bottom - info.srWindow.Top, |
| 671 | 1 + info.srWindow.Right - info.srWindow.Left, |
| 672 | 0, 0, 0); |
| 673 | } |
| 674 | |
| 675 | int |
| 676 | w32_console_read_socket (struct terminal *terminal, |
| 677 | int expected, |
| 678 | struct input_event *hold_quit) |
| 679 | { |
| 680 | int nev, ret = 0, add; |
| 681 | int isdead; |
| 682 | |
| 683 | if (interrupt_input_blocked) |
| 684 | { |
| 685 | interrupt_input_pending = 1; |
| 686 | return -1; |
| 687 | } |
| 688 | |
| 689 | interrupt_input_pending = 0; |
| 690 | BLOCK_INPUT; |
| 691 | |
| 692 | for (;;) |
| 693 | { |
| 694 | nev = fill_queue (0); |
| 695 | if (nev <= 0) |
| 696 | { |
| 697 | /* If nev == -1, there was some kind of error |
| 698 | If nev == 0 then waitp must be zero and no events were available |
| 699 | so return. */ |
| 700 | UNBLOCK_INPUT; |
| 701 | return nev; |
| 702 | } |
| 703 | |
| 704 | while (nev > 0) |
| 705 | { |
| 706 | struct input_event inev; |
| 707 | |
| 708 | EVENT_INIT (inev); |
| 709 | inev.kind = NO_EVENT; |
| 710 | inev.arg = Qnil; |
| 711 | |
| 712 | switch (queue_ptr->EventType) |
| 713 | { |
| 714 | case KEY_EVENT: |
| 715 | add = key_event (&queue_ptr->Event.KeyEvent, &inev, &isdead); |
| 716 | if (add == -1) /* 95.7.25 by himi */ |
| 717 | { |
| 718 | queue_ptr--; |
| 719 | add = 1; |
| 720 | } |
| 721 | if (add) |
| 722 | kbd_buffer_store_event_hold (&inev, hold_quit); |
| 723 | break; |
| 724 | |
| 725 | case MOUSE_EVENT: |
| 726 | add = do_mouse_event (&queue_ptr->Event.MouseEvent, &inev); |
| 727 | if (add) |
| 728 | kbd_buffer_store_event_hold (&inev, hold_quit); |
| 729 | break; |
| 730 | |
| 731 | case WINDOW_BUFFER_SIZE_EVENT: |
| 732 | if (w32_use_full_screen_buffer) |
| 733 | resize_event (&queue_ptr->Event.WindowBufferSizeEvent); |
| 734 | break; |
| 735 | |
| 736 | case MENU_EVENT: |
| 737 | case FOCUS_EVENT: |
| 738 | /* Internal event types, ignored. */ |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | queue_ptr++; |
| 743 | nev--; |
| 744 | } |
| 745 | |
| 746 | if (ret > 0 || expected == 0) |
| 747 | break; |
| 748 | } |
| 749 | |
| 750 | /* We don't get told about changes in the window size (only the buffer |
| 751 | size, which we no longer care about), so we have to check it |
| 752 | periodically. */ |
| 753 | if (!w32_use_full_screen_buffer) |
| 754 | maybe_generate_resize_event (); |
| 755 | |
| 756 | UNBLOCK_INPUT; |
| 757 | return ret; |
| 758 | } |