| 1 | /* Input event support for Emacs on the Microsoft W32 API. |
| 2 | Copyright (C) 1992, 1993, 1995 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 2, or (at your option) |
| 9 | 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; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. |
| 20 | |
| 21 | Drew Bliss 01-Oct-93 |
| 22 | Adapted from ntkbd.c by Tim Fleehart |
| 23 | */ |
| 24 | |
| 25 | |
| 26 | #include "config.h" |
| 27 | |
| 28 | #include <stdlib.h> |
| 29 | #include <stdio.h> |
| 30 | #include <windows.h> |
| 31 | |
| 32 | #include "lisp.h" |
| 33 | #include "frame.h" |
| 34 | #include "blockinput.h" |
| 35 | #include "termhooks.h" |
| 36 | |
| 37 | /* stdin, from ntterm */ |
| 38 | extern HANDLE keyboard_handle; |
| 39 | |
| 40 | /* Info for last mouse motion */ |
| 41 | static COORD movement_pos; |
| 42 | static DWORD movement_time; |
| 43 | |
| 44 | /* from keyboard.c */ |
| 45 | extern void reinvoke_input_signal (void); |
| 46 | |
| 47 | /* from dispnew.c */ |
| 48 | extern int change_frame_size (FRAME_PTR, int, int, int, int); |
| 49 | |
| 50 | /* from w32fns.c */ |
| 51 | extern Lisp_Object Vw32_alt_is_meta; |
| 52 | |
| 53 | /* from w32term */ |
| 54 | extern Lisp_Object Vw32_capslock_is_shiftlock; |
| 55 | |
| 56 | /* Event queue */ |
| 57 | #define EVENT_QUEUE_SIZE 50 |
| 58 | static INPUT_RECORD event_queue[EVENT_QUEUE_SIZE]; |
| 59 | static INPUT_RECORD *queue_ptr = event_queue, *queue_end = event_queue; |
| 60 | |
| 61 | static int |
| 62 | fill_queue (BOOL block) |
| 63 | { |
| 64 | BOOL rc; |
| 65 | DWORD events_waiting; |
| 66 | |
| 67 | if (queue_ptr < queue_end) |
| 68 | return queue_end-queue_ptr; |
| 69 | |
| 70 | if (!block) |
| 71 | { |
| 72 | /* Check to see if there are some events to read before we try |
| 73 | because we can't block. */ |
| 74 | if (!GetNumberOfConsoleInputEvents (keyboard_handle, &events_waiting)) |
| 75 | return -1; |
| 76 | if (events_waiting == 0) |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | rc = ReadConsoleInput (keyboard_handle, event_queue, EVENT_QUEUE_SIZE, |
| 81 | &events_waiting); |
| 82 | if (!rc) |
| 83 | return -1; |
| 84 | queue_ptr = event_queue; |
| 85 | queue_end = event_queue + events_waiting; |
| 86 | return (int) events_waiting; |
| 87 | } |
| 88 | |
| 89 | /* In a generic, multi-frame world this should take a console handle |
| 90 | and return the frame for it |
| 91 | |
| 92 | Right now, there's only one frame so return it. */ |
| 93 | static FRAME_PTR |
| 94 | get_frame (void) |
| 95 | { |
| 96 | return selected_frame; |
| 97 | } |
| 98 | |
| 99 | /* Translate console modifiers to emacs modifiers. |
| 100 | German keyboard support (Kai Morgan Zeise 2/18/95). */ |
| 101 | int |
| 102 | w32_kbd_mods_to_emacs (DWORD mods, WORD key) |
| 103 | { |
| 104 | int retval = 0; |
| 105 | |
| 106 | /* If AltGr has been pressed, remove it. */ |
| 107 | if ((mods & (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 108 | == (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 109 | mods &= ~ (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED); |
| 110 | |
| 111 | if (mods & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)) |
| 112 | retval = ((NILP (Vw32_alt_is_meta)) ? alt_modifier : meta_modifier); |
| 113 | |
| 114 | if (mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 115 | { |
| 116 | retval |= ctrl_modifier; |
| 117 | if ((mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 118 | == (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 119 | retval |= meta_modifier; |
| 120 | } |
| 121 | |
| 122 | /* Just in case someone wanted the original behaviour, make it |
| 123 | optional by setting w32-capslock-is-shiftlock to t. */ |
| 124 | if (NILP (Vw32_capslock_is_shiftlock) |
| 125 | && ((key == VK_INSERT) |
| 126 | || (key == VK_DELETE) |
| 127 | || ((key >= VK_F1) && (key <= VK_F24)) |
| 128 | || ((key >= VK_PRIOR) && (key <= VK_DOWN)))) |
| 129 | { |
| 130 | if ( (mods & SHIFT_PRESSED) == SHIFT_PRESSED) |
| 131 | retval |= shift_modifier; |
| 132 | } |
| 133 | else |
| 134 | { |
| 135 | if (((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) == SHIFT_PRESSED) |
| 136 | || ((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) == CAPSLOCK_ON)) |
| 137 | retval |= shift_modifier; |
| 138 | } |
| 139 | |
| 140 | return retval; |
| 141 | } |
| 142 | |
| 143 | /* The return code indicates key code size. */ |
| 144 | int |
| 145 | w32_kbd_patch_key (KEY_EVENT_RECORD *event) |
| 146 | { |
| 147 | unsigned int key_code = event->wVirtualKeyCode; |
| 148 | unsigned int mods = event->dwControlKeyState; |
| 149 | BYTE keystate[256]; |
| 150 | static BYTE ansi_code[4]; |
| 151 | static int isdead = 0; |
| 152 | |
| 153 | if (isdead == 2) |
| 154 | { |
| 155 | event->uChar.AsciiChar = ansi_code[2]; |
| 156 | isdead = 0; |
| 157 | return 1; |
| 158 | } |
| 159 | if (event->uChar.AsciiChar != 0) |
| 160 | return 1; |
| 161 | |
| 162 | memset (keystate, 0, sizeof (keystate)); |
| 163 | if (mods & SHIFT_PRESSED) |
| 164 | keystate[VK_SHIFT] = 0x80; |
| 165 | if (mods & CAPSLOCK_ON) |
| 166 | keystate[VK_CAPITAL] = 1; |
| 167 | if ((mods & LEFT_CTRL_PRESSED) && (mods & RIGHT_ALT_PRESSED)) |
| 168 | { |
| 169 | keystate[VK_CONTROL] = 0x80; |
| 170 | keystate[VK_LCONTROL] = 0x80; |
| 171 | keystate[VK_MENU] = 0x80; |
| 172 | keystate[VK_RMENU] = 0x80; |
| 173 | } |
| 174 | |
| 175 | isdead = ToAscii (event->wVirtualKeyCode, event->wVirtualScanCode, |
| 176 | keystate, (LPWORD) ansi_code, 0); |
| 177 | if (isdead == 0) |
| 178 | return 0; |
| 179 | event->uChar.AsciiChar = ansi_code[0]; |
| 180 | return isdead; |
| 181 | } |
| 182 | |
| 183 | /* Map virtual key codes into: |
| 184 | -1 - Ignore this key |
| 185 | -2 - ASCII char |
| 186 | Other - Map non-ASCII keys into X keysyms so that they are looked up |
| 187 | correctly in keyboard.c |
| 188 | |
| 189 | Return, escape and tab are mapped to ASCII rather than coming back |
| 190 | as non-ASCII to be more compatible with old-style keyboard support. */ |
| 191 | |
| 192 | static int map_virt_key[256] = |
| 193 | { |
| 194 | #ifdef MULE |
| 195 | -3, |
| 196 | #else |
| 197 | -1, |
| 198 | #endif |
| 199 | -1, /* VK_LBUTTON */ |
| 200 | -1, /* VK_RBUTTON */ |
| 201 | 0x69, /* VK_CANCEL */ |
| 202 | -1, /* VK_MBUTTON */ |
| 203 | -1, -1, -1, |
| 204 | 8, /* VK_BACK */ |
| 205 | -2, /* VK_TAB */ |
| 206 | -1, -1, |
| 207 | 11, /* VK_CLEAR */ |
| 208 | -2, /* VK_RETURN */ |
| 209 | -1, -1, |
| 210 | -1, /* VK_SHIFT */ |
| 211 | -1, /* VK_CONTROL */ |
| 212 | -1, /* VK_MENU */ |
| 213 | 0x13, /* VK_PAUSE */ |
| 214 | -1, /* VK_CAPITAL */ |
| 215 | -1, -1, -1, -1, -1, -1, |
| 216 | -2, /* VK_ESCAPE */ |
| 217 | -1, -1, -1, -1, |
| 218 | -2, /* VK_SPACE */ |
| 219 | 0x55, /* VK_PRIOR */ |
| 220 | 0x56, /* VK_NEXT */ |
| 221 | 0x57, /* VK_END */ |
| 222 | 0x50, /* VK_HOME */ |
| 223 | 0x51, /* VK_LEFT */ |
| 224 | 0x52, /* VK_UP */ |
| 225 | 0x53, /* VK_RIGHT */ |
| 226 | 0x54, /* VK_DOWN */ |
| 227 | 0x60, /* VK_SELECT */ |
| 228 | 0x61, /* VK_PRINT */ |
| 229 | 0x62, /* VK_EXECUTE */ |
| 230 | -1, /* VK_SNAPSHOT */ |
| 231 | 0x63, /* VK_INSERT */ |
| 232 | 0xff, /* VK_DELETE */ |
| 233 | 0x6a, /* VK_HELP */ |
| 234 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, /* 0 - 9 */ |
| 235 | -1, -1, -1, -1, -1, -1, -1, |
| 236 | -2, -2, -2, -2, -2, -2, -2, -2, /* A - Z */ |
| 237 | -2, -2, -2, -2, -2, -2, -2, -2, |
| 238 | -2, -2, -2, -2, -2, -2, -2, -2, |
| 239 | -2, -2, |
| 240 | -1, -1, -1, -1, -1, |
| 241 | 0xb0, /* VK_NUMPAD0 */ |
| 242 | 0xb1, /* VK_NUMPAD1 */ |
| 243 | 0xb2, /* VK_NUMPAD2 */ |
| 244 | 0xb3, /* VK_NUMPAD3 */ |
| 245 | 0xb4, /* VK_NUMPAD4 */ |
| 246 | 0xb5, /* VK_NUMPAD5 */ |
| 247 | 0xb6, /* VK_NUMPAD6 */ |
| 248 | 0xb7, /* VK_NUMPAD7 */ |
| 249 | 0xb8, /* VK_NUMPAD8 */ |
| 250 | 0xb9, /* VK_NUMPAD9 */ |
| 251 | 0xaa, /* VK_MULTIPLY */ |
| 252 | 0xab, /* VK_ADD */ |
| 253 | 0xac, /* VK_SEPARATOR */ |
| 254 | 0xad, /* VK_SUBTRACT */ |
| 255 | 0xae, /* VK_DECIMAL */ |
| 256 | 0xaf, /* VK_DIVIDE */ |
| 257 | 0xbe, /* VK_F1 */ |
| 258 | 0xbf, /* VK_F2 */ |
| 259 | 0xc0, /* VK_F3 */ |
| 260 | 0xc1, /* VK_F4 */ |
| 261 | 0xc2, /* VK_F5 */ |
| 262 | 0xc3, /* VK_F6 */ |
| 263 | 0xc4, /* VK_F7 */ |
| 264 | 0xc5, /* VK_F8 */ |
| 265 | 0xc6, /* VK_F9 */ |
| 266 | 0xc7, /* VK_F10 */ |
| 267 | 0xc8, /* VK_F11 */ |
| 268 | 0xc9, /* VK_F12 */ |
| 269 | 0xca, /* VK_F13 */ |
| 270 | 0xcb, /* VK_F14 */ |
| 271 | 0xcc, /* VK_F15 */ |
| 272 | 0xcd, /* VK_F16 */ |
| 273 | 0xce, /* VK_F17 */ |
| 274 | 0xcf, /* VK_F18 */ |
| 275 | 0xd0, /* VK_F19 */ |
| 276 | 0xd1, /* VK_F20 */ |
| 277 | 0xd2, /* VK_F21 */ |
| 278 | 0xd3, /* VK_F22 */ |
| 279 | 0xd4, /* VK_F23 */ |
| 280 | 0xd5, /* VK_F24 */ |
| 281 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 282 | 0x7f, /* VK_NUMLOCK */ |
| 283 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x9f */ |
| 284 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xaf */ |
| 285 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xb9 */ |
| 286 | -2, /* ; */ |
| 287 | -2, /* = */ |
| 288 | -2, /* , */ |
| 289 | -2, /* \ */ |
| 290 | -2, /* . */ |
| 291 | -2, /* / */ |
| 292 | -2, /* ` */ |
| 293 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xcf */ |
| 294 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xda */ |
| 295 | -2, -2, -2, -2, -2, /* 0xdf */ |
| 296 | -2, -2, -2, -2, -2, |
| 297 | -1, /* 0xe5 */ |
| 298 | -2, /* oxe6 */ |
| 299 | -1, -1, /* 0xe8 */ |
| 300 | -2, -2, -2, -2, -2, -2, -2, /* 0xef */ |
| 301 | -2, -2, -2, -2, -2, -2, |
| 302 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 0xff */ |
| 303 | }; |
| 304 | |
| 305 | /* return code -1 means that event_queue_ptr won't be incremented. |
| 306 | In other word, this event makes two key codes. (by himi) */ |
| 307 | int |
| 308 | key_event (KEY_EVENT_RECORD *event, struct input_event *emacs_ev, int *isdead) |
| 309 | { |
| 310 | int map; |
| 311 | int key_flag = 0; |
| 312 | static BOOL map_virt_key_init_done; |
| 313 | |
| 314 | *isdead = 0; |
| 315 | |
| 316 | /* Skip key-up events. */ |
| 317 | if (!event->bKeyDown) |
| 318 | return 0; |
| 319 | |
| 320 | if (event->wVirtualKeyCode > 0xff) |
| 321 | { |
| 322 | printf ("Unknown key code %d\n", event->wVirtualKeyCode); |
| 323 | return 0; |
| 324 | } |
| 325 | |
| 326 | /* Patch needed for German keyboard. Ulrich Leodolter (1/11/95). */ |
| 327 | if (! map_virt_key_init_done) |
| 328 | { |
| 329 | short vk; |
| 330 | |
| 331 | if ((vk = VkKeyScan (0x3c)) >= 0 && vk < 256) map_virt_key[vk] = -2; /* less */ |
| 332 | if ((vk = VkKeyScan (0x3e)) >= 0 && vk < 256) map_virt_key[vk] = -2; /* greater */ |
| 333 | |
| 334 | map_virt_key_init_done = TRUE; |
| 335 | } |
| 336 | |
| 337 | /* BUGBUG - Ignores the repeat count |
| 338 | It's questionable whether we want to obey the repeat count anyway |
| 339 | since keys usually aren't repeated unless key events back up in |
| 340 | the queue. If they're backing up then we don't generally want |
| 341 | to honor them later since that leads to significant slop in |
| 342 | cursor motion when the system is under heavy load. */ |
| 343 | |
| 344 | map = map_virt_key[event->wVirtualKeyCode]; |
| 345 | if (map == -1) |
| 346 | { |
| 347 | return 0; |
| 348 | } |
| 349 | else if (map == -2) |
| 350 | { |
| 351 | /* ASCII */ |
| 352 | emacs_ev->kind = ascii_keystroke; |
| 353 | key_flag = w32_kbd_patch_key (event); /* 95.7.25 by himi */ |
| 354 | if (key_flag == 0) |
| 355 | return 0; |
| 356 | if (key_flag < 0) |
| 357 | *isdead = 1; |
| 358 | XSETINT (emacs_ev->code, event->uChar.AsciiChar); |
| 359 | } |
| 360 | #ifdef MULE |
| 361 | /* for IME */ |
| 362 | else if (map == -3) |
| 363 | { |
| 364 | if ((event->dwControlKeyState & NLS_IME_CONVERSION) |
| 365 | && !(event->dwControlKeyState & RIGHT_ALT_PRESSED) |
| 366 | && !(event->dwControlKeyState & LEFT_ALT_PRESSED) |
| 367 | && !(event->dwControlKeyState & RIGHT_CTRL_PRESSED) |
| 368 | && !(event->dwControlKeyState & LEFT_CTRL_PRESSED)) |
| 369 | { |
| 370 | emacs_ev->kind = ascii_keystroke; |
| 371 | XSETINT (emacs_ev->code, event->uChar.AsciiChar); |
| 372 | } |
| 373 | else |
| 374 | return 0; |
| 375 | } |
| 376 | #endif |
| 377 | else |
| 378 | { |
| 379 | /* non-ASCII */ |
| 380 | emacs_ev->kind = non_ascii_keystroke; |
| 381 | #ifdef HAVE_NTGUI |
| 382 | /* use Windows keysym map */ |
| 383 | XSETINT (emacs_ev->code, event->wVirtualKeyCode); |
| 384 | #else |
| 385 | /* |
| 386 | * make_lispy_event () now requires non-ascii codes to have |
| 387 | * the full X keysym values (2nd byte is 0xff). add it on. |
| 388 | */ |
| 389 | map |= 0xff00; |
| 390 | XSETINT (emacs_ev->code, map); |
| 391 | #endif /* HAVE_NTGUI */ |
| 392 | } |
| 393 | /* for Mule 2.2 (Based on Emacs 19.28) */ |
| 394 | #ifdef MULE |
| 395 | XSET (emacs_ev->frame_or_window, Lisp_Frame, get_frame ()); |
| 396 | #else |
| 397 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 398 | #endif |
| 399 | emacs_ev->modifiers = w32_kbd_mods_to_emacs (event->dwControlKeyState, |
| 400 | event->wVirtualKeyCode); |
| 401 | emacs_ev->timestamp = GetTickCount (); |
| 402 | if (key_flag == 2) return -1; /* 95.7.25 by himi */ |
| 403 | return 1; |
| 404 | } |
| 405 | |
| 406 | /* Mouse position hook. */ |
| 407 | void |
| 408 | w32_mouse_position (FRAME_PTR *f, |
| 409 | #ifndef MULE |
| 410 | int insist, |
| 411 | #endif |
| 412 | Lisp_Object *bar_window, |
| 413 | enum scroll_bar_part *part, |
| 414 | Lisp_Object *x, |
| 415 | Lisp_Object *y, |
| 416 | unsigned long *time) |
| 417 | { |
| 418 | BLOCK_INPUT; |
| 419 | |
| 420 | #ifndef MULE |
| 421 | insist = insist; |
| 422 | #endif |
| 423 | |
| 424 | *f = get_frame (); |
| 425 | *bar_window = Qnil; |
| 426 | *part = 0; |
| 427 | selected_frame->mouse_moved = 0; |
| 428 | |
| 429 | *x = movement_pos.X; |
| 430 | *y = movement_pos.Y; |
| 431 | *time = movement_time; |
| 432 | |
| 433 | UNBLOCK_INPUT; |
| 434 | } |
| 435 | |
| 436 | /* Remember mouse motion and notify emacs. */ |
| 437 | static void |
| 438 | mouse_moved_to (int x, int y) |
| 439 | { |
| 440 | /* If we're in the same place, ignore it */ |
| 441 | if (x != movement_pos.X || y != movement_pos.Y) |
| 442 | { |
| 443 | selected_frame->mouse_moved = 1; |
| 444 | movement_pos.X = x; |
| 445 | movement_pos.Y = y; |
| 446 | movement_time = GetTickCount (); |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | /* Consoles return button bits in a strange order: |
| 451 | least significant - Leftmost button |
| 452 | next - Rightmost button |
| 453 | next - Leftmost+1 |
| 454 | next - Leftmost+2... |
| 455 | |
| 456 | Assume emacs likes three button mice, so |
| 457 | Left == 0 |
| 458 | Middle == 1 |
| 459 | Right == 2 |
| 460 | Others increase from there. */ |
| 461 | |
| 462 | static int emacs_button_translation[NUM_MOUSE_BUTTONS] = |
| 463 | { |
| 464 | 0, 2, 1, 3, 4, |
| 465 | }; |
| 466 | |
| 467 | static int |
| 468 | do_mouse_event (MOUSE_EVENT_RECORD *event, |
| 469 | struct input_event *emacs_ev) |
| 470 | { |
| 471 | static DWORD button_state = 0; |
| 472 | DWORD but_change, mask; |
| 473 | int i; |
| 474 | |
| 475 | if (event->dwEventFlags == MOUSE_MOVED) |
| 476 | { |
| 477 | /* For movement events we just note that the mouse has moved |
| 478 | so that emacs will generate drag events. */ |
| 479 | mouse_moved_to (event->dwMousePosition.X, event->dwMousePosition.Y); |
| 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | /* It looks like the console code sends us a mouse event with |
| 484 | dwButtonState == 0 when a window is activated. Ignore this case. */ |
| 485 | if (event->dwButtonState == button_state) |
| 486 | return 0; |
| 487 | |
| 488 | emacs_ev->kind = mouse_click; |
| 489 | |
| 490 | /* Find out what button has changed state since the last button event. */ |
| 491 | but_change = button_state ^ event->dwButtonState; |
| 492 | mask = 1; |
| 493 | for (i = 0; i < NUM_MOUSE_BUTTONS; i++, mask <<= 1) |
| 494 | if (but_change & mask) |
| 495 | { |
| 496 | XSETINT (emacs_ev->code, emacs_button_translation[i]); |
| 497 | break; |
| 498 | } |
| 499 | |
| 500 | /* If the changed button is out of emacs' range (highly unlikely) |
| 501 | ignore this event. */ |
| 502 | if (i == NUM_MOUSE_BUTTONS) |
| 503 | return 0; |
| 504 | |
| 505 | button_state = event->dwButtonState; |
| 506 | emacs_ev->timestamp = GetTickCount (); |
| 507 | emacs_ev->modifiers = w32_kbd_mods_to_emacs (event->dwControlKeyState, 0) | |
| 508 | ((event->dwButtonState & mask) ? down_modifier : up_modifier); |
| 509 | |
| 510 | XSETFASTINT (emacs_ev->x, event->dwMousePosition.X); |
| 511 | XSETFASTINT (emacs_ev->y, event->dwMousePosition.Y); |
| 512 | /* for Mule 2.2 (Based on Emacs 19.28 */ |
| 513 | #ifdef MULE |
| 514 | XSET (emacs_ev->frame_or_window, Lisp_Frame, get_frame ()); |
| 515 | #else |
| 516 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 517 | #endif |
| 518 | |
| 519 | return 1; |
| 520 | } |
| 521 | |
| 522 | static void |
| 523 | resize_event (WINDOW_BUFFER_SIZE_RECORD *event) |
| 524 | { |
| 525 | FRAME_PTR f = get_frame (); |
| 526 | |
| 527 | change_frame_size (f, event->dwSize.Y, event->dwSize.X, 0, 1); |
| 528 | SET_FRAME_GARBAGED (f); |
| 529 | } |
| 530 | |
| 531 | int |
| 532 | w32_console_read_socket (int sd, struct input_event *bufp, int numchars, |
| 533 | int waitp, int expected) |
| 534 | { |
| 535 | BOOL no_events = TRUE; |
| 536 | int nev, ret = 0, add; |
| 537 | int isdead; |
| 538 | |
| 539 | if (interrupt_input_blocked) |
| 540 | { |
| 541 | interrupt_input_pending = 1; |
| 542 | return -1; |
| 543 | } |
| 544 | |
| 545 | interrupt_input_pending = 0; |
| 546 | BLOCK_INPUT; |
| 547 | |
| 548 | for (;;) |
| 549 | { |
| 550 | nev = fill_queue (0); |
| 551 | if (nev <= 0) |
| 552 | { |
| 553 | /* If nev == -1, there was some kind of error |
| 554 | If nev == 0 then waitp must be zero and no events were available |
| 555 | so return. */ |
| 556 | UNBLOCK_INPUT; |
| 557 | return nev; |
| 558 | } |
| 559 | |
| 560 | while (nev > 0 && numchars > 0) |
| 561 | { |
| 562 | switch (queue_ptr->EventType) |
| 563 | { |
| 564 | case KEY_EVENT: |
| 565 | add = key_event (&queue_ptr->Event.KeyEvent, bufp, &isdead); |
| 566 | if (add == -1) /* 95.7.25 by himi */ |
| 567 | { |
| 568 | queue_ptr--; |
| 569 | add = 1; |
| 570 | } |
| 571 | bufp += add; |
| 572 | ret += add; |
| 573 | numchars -= add; |
| 574 | break; |
| 575 | |
| 576 | case MOUSE_EVENT: |
| 577 | add = do_mouse_event (&queue_ptr->Event.MouseEvent, bufp); |
| 578 | bufp += add; |
| 579 | ret += add; |
| 580 | numchars -= add; |
| 581 | break; |
| 582 | |
| 583 | case WINDOW_BUFFER_SIZE_EVENT: |
| 584 | resize_event (&queue_ptr->Event.WindowBufferSizeEvent); |
| 585 | break; |
| 586 | |
| 587 | case MENU_EVENT: |
| 588 | case FOCUS_EVENT: |
| 589 | /* Internal event types, ignored. */ |
| 590 | break; |
| 591 | } |
| 592 | |
| 593 | queue_ptr++; |
| 594 | nev--; |
| 595 | } |
| 596 | |
| 597 | if (ret > 0 || expected == 0) |
| 598 | break; |
| 599 | } |
| 600 | |
| 601 | UNBLOCK_INPUT; |
| 602 | return ret; |
| 603 | } |