alpine/osdep/termin.wnt.c

   1 /*
   2  * ========================================================================
   3  * Copyright 2006-2008 University of Washington
   4  * Copyright 2013-2021 Eduardo Chappa
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * ========================================================================
  13  */
  14
  15 #include <system.h>
  16 #include <general.h>
  17
  18 #include "../../c-client/mail.h"        /* for MAILSTREAM and friends */
  19 #include "../../c-client/osdep.h"
  20 #include "../../c-client/rfc822.h"      /* for soutr_t and such */
  21 #include "../../c-client/misc.h"        /* for cpystr proto */
  22 #include "../../c-client/utf8.h"        /* for CHARSET and such*/
  23 #include "../../c-client/imap4r1.h"
  24
  25 #include "../../pith/charconv/utf8.h"
  26 #include "../../pith/charconv/filesys.h"
  27
  28 #include "../../pith/osdep/color.h"
  29
  30 #include "../../pith/debug.h"
  31 #include "../../pith/state.h"
  32 #include "../../pith/conf.h"
  33 #include "../../pith/detach.h"
  34
  35 #include "../pico/estruct.h"
  36 #include "../pico/pico.h"
  37
  38 #include "../../pico/osdep/raw.h"
  39 #include "../../pico/osdep/signals.h"
  40 #include "../../pico/osdep/mouse.h"
  41 #include "../../pico/keydefs.h"
  42
  43 #include "../talk.h"
  44 #include "../radio.h"
  45 #include "../dispfilt.h"
  46 #include "../signal.h"
  47 #include "../status.h"
  48 #include "../titlebar.h"
  49
  50 #include "../../pico/osdep/mswin.h"
  51
  52 #include "termin.gen.h"
  53 #include "termin.wnt.h"
  54 #include "termout.gen.h"
  55
  56 #define RETURN_CH(X)    return(key_rec ? ((*key_rec)(X)) : (int)(X))
  57
  58 /* global to tell us if the window was resized. */
  59 static int DidResize = FALSE;
  60
  61 int pine_window_resize_callback(void);
  62
  63 /*----------------------------------------------------------------------
  64     Initialize the tty driver to do single char I/O and whatever else
  65
  66  Input:  struct pine
  67
  68  Result: tty driver is put in raw mode
  69   ----------------------------------------------------------------------*/
  70 int
  71 init_tty_driver(struct pine *pine)
  72 {
  73     mswin_showwindow();
  74     mswin_setresizecallback (pine_window_resize_callback);
  75     init_mouse ();                      /* always a mouse under windows? */
  76     return(PineRaw(1));
  77 }
  78
  79
  80 /*----------------------------------------------------------------------
  81        End use of the tty, put it back into it's normal mode
  82
  83  Input:  struct pine
  84
  85  Result: tty driver mode change
  86   ----------------------------------------------------------------------*/
  87 void
  88 end_tty_driver(struct pine *pine)
  89 {
  90     dprint((2, "about to end_tty_driver\n"));
  91     mswin_clearresizecallback (pine_window_resize_callback);
  92 }
  93
  94 /*----------------------------------------------------------------------
  95     Actually set up the tty driver
  96
  97    Args: state -- which state to put it in. 1 means go into raw, 0 out of
  98
  99   Result: returns 0 if successful and -1 if not.
 100   ----*/
 101
 102 int
 103 PineRaw(int state)
 104 {
 105     ps_global->low_speed = 0;
 106     return(0);
 107 }
 108
 109 /*----------------------------------------------------------------------
 110    Read input characters with lots of processing for arrow keys and such
 111
 112  Input:  none
 113
 114  Result: returns the character read. Possible special chars defined h file
 115
 116
 117     This deals with function and arrow keys as well.
 118   It returns ^T for up , ^U for down, ^V for forward and ^W for back.
 119   These are just sort of arbitrarily picked and might be changed.
 120   They are defined in defs.h. Didn't want to use 8 bit chars because
 121   the values are signed chars, though it ought to work with negative
 122   values.
 123
 124   The idea is that this routine handles all escape codes so it done in
 125   only one place. Especially so the back arrow key can work when entering
 126   things on a line. Also so all function keys can be broken and not
 127   cause weird things to happen.
 128 ----------------------------------------------------------------------*/
 129
 130 UCS
 131 read_char(int tm)
 132 {
 133     unsigned   ch = 0;
 134     time_t     timein;
 135     int (*key_rec)(int);
 136
 137     key_rec = key_recorder;
 138     if(ps_global->conceal_sensitive_debugging && debug < 10)
 139       key_rec = NULL;
 140
 141     if(process_config_input((int *) &ch))
 142       RETURN_CH(ch);
 143
 144     if (DidResize) {
 145          DidResize = FALSE;
 146          fix_windsize(ps_global);
 147          return(KEY_RESIZE);
 148     }
 149
 150     mswin_setcursor(MSWIN_CURSOR_ARROW);
 151
 152     if(tm){
 153         timein = time(0L);
 154         /* mswin_charavail() Yields control to other window apps. */
 155         while (!mswin_charavail()) {
 156             if(time(0L) >= timein + (time_t) tm){
 157                 ch = (tm < IDLE_TIMEOUT) ? NO_OP_COMMAND : NO_OP_IDLE;
 158                 goto gotone;
 159             }
 160             if (DidResize) {
 161                 DidResize = FALSE;
 162                 fix_windsize(ps_global);
 163                 return(KEY_RESIZE);
 164             }
 165             if(checkmouse(&ch,0,0,0))
 166               goto gotone;
 167         }
 168     }
 169     else
 170       while(!mswin_charavail())
 171         if(checkmouse(&ch,0,0,0))
 172           goto gotone;
 173
 174     ch = mswin_getc_fast();
 175
 176     /*
 177      * mswin_getc_fast() returns UCS type codes (see keydefs.h). Map
 178      *  those values to what is expected from read_char(): Ctrl keys being
 179      *  in the 0..0x1f range, NO_OP_COMMAND, etc.
 180      */
 181     if(ch == NODATA)
 182         ch = NO_OP_COMMAND;
 183     else if(ch & CTRL)
 184     {
 185         ch &= ~CTRL;
 186         if(ch >= '@' && ch < '@' + 32) {
 187             ch -= '@';
 188         }
 189         else {
 190             /*
 191              * This could be a ctrl key this part of Pine doesn't understand.
 192              *  For example, CTRL|KEY_LEFT. Map these to nops.
 193              */
 194             ch = NO_OP_COMMAND;
 195         }
 196     }
 197
 198 gotone:
 199     /* More obtuse key mapping.  If it is a mouse event, the return
 200      * may be KEY_MOUSE, which indicates to the upper layer that it
 201      * is a mouse event.  Return it here to avoid the code that
 202      * follows which would do a (ch & 0xff).
 203      */
 204     if (ch == KEY_MOUSE)
 205       RETURN_CH(ch);
 206
 207     /*
 208      * WARNING: Hack notice.
 209      * the mouse interaction complicates this expression a bit as
 210      * if function key mode is set, PFn values are setup for return
 211      * by the mouse event catcher.  For now, just special case them
 212      * since they don't conflict with any of the DOS special keys.
 213      */
 214     if((ch & 0xff) == ctrl('Z'))
 215       RETURN_CH(do_suspend());
 216
 217     RETURN_CH (ch);
 218 }
 219
 220 void
 221 flush_input(void)
 222 {
 223     mswin_flush_input();
 224 }
 225
 226 void
 227 init_keyboard(int use_fkeys)
 228 {
 229 }
 230
 231 void
 232 end_keyboard(int use_fkeys)
 233 {
 234 }
 235
 236 int
 237 pre_screen_config_opt_enter(char *utf8string, int utf8string_size,
 238                             char *utf8prompt, ESCKEY_S *escape_list,
 239                             HelpType help, int *flags)
 240 {
 241     mswin_setwindow(NULL, NULL, NULL, NULL, NULL, NULL);
 242     return(win_dialog_opt_enter(utf8string, utf8string_size, utf8prompt, escape_list,
 243                                 help, flags));
 244 }
 245
 246 int
 247 win_dialog_opt_enter(char *utf8string, int utf8string_size, char *utf8prompt,
 248                      ESCKEY_S *escape_list, HelpType help, int *flags)
 249 {
 250     MDlgButton button_list[12];
 251     LPTSTR     free_names[12];
 252     LPTSTR     free_labels[12];
 253     int        i, b, return_v;
 254     char     **help_text;
 255     char      *utf8, *saved_string = NULL;
 256     UCS       *string, *s, *prompt;
 257     int        n;
 258
 259     memset(&free_names, 0, sizeof(LPTSTR) * 12);
 260     memset(&free_labels, 0, sizeof(LPTSTR) * 12);
 261     memset (&button_list, 0, sizeof (MDlgButton) * 12);
 262     b = 0;
 263     for (i = 0; escape_list && escape_list[i].ch != -1 && i < 11; ++i) {
 264         if (escape_list[i].name != NULL
 265             && escape_list[i].ch > 0 && escape_list[i].ch < 256) {
 266             button_list[b].ch = escape_list[i].ch;
 267             button_list[b].rval = escape_list[i].rval;
 268             free_names[b] = utf8_to_lptstr(escape_list[i].name);
 269             button_list[b].name = free_names[b];
 270             free_labels[b] = utf8_to_lptstr(escape_list[i].label);
 271             button_list[b].label = free_labels[b];
 272             b++;
 273         }
 274     }
 275
 276     button_list[b].ch = -1;
 277
 278     if(utf8string)
 279       saved_string = cpystr(utf8string);
 280
 281     /* assumption here is that HelpType is char **  */
 282     help_text = help;
 283
 284     n = utf8string_size;
 285     string = (UCS *) fs_get(n * sizeof(UCS));
 286     s = utf8_to_ucs4_cpystr(utf8string);
 287     if(s){
 288         ucs4_strncpy(string, s, n);
 289         string[n-1] = '\0';
 290         fs_give((void **) &s);
 291     }
 292
 293     prompt = utf8_to_ucs4_cpystr(utf8prompt ? utf8prompt : "");
 294
 295     return_v = mswin_dialog(prompt, string, n,
 296                             (flags && *flags & OE_APPEND_CURRENT),
 297                             (flags && *flags & OE_PASSWD_NOAST) ? 10 :
 298                              (flags && *flags & OE_PASSWD)       ?  1 : 0,
 299                             button_list,
 300                             help_text, flags ? *flags : OE_NONE);
 301
 302     for(i = 0; i < 12; i++){
 303         if(free_names[i])
 304           fs_give((void **) &free_names[i]);
 305         if(free_labels[i])
 306           fs_give((void **) &free_labels[i]);
 307     }
 308
 309     utf8 = ucs4_to_utf8_cpystr(string);
 310     if(utf8){
 311         strncpy(utf8string, utf8, utf8string_size);
 312         utf8string[utf8string_size-1] = '\0';
 313         fs_give((void **) &utf8);
 314     }
 315
 316     if(string)
 317       fs_give((void **) &string);
 318
 319     if(prompt)
 320       fs_give((void **) &prompt);
 321
 322     if(flags && (saved_string && !utf8string || !saved_string && utf8string ||
 323        (saved_string && string && strcmp(saved_string, utf8string))))
 324       *flags |= OE_USER_MODIFIED;
 325
 326     if(saved_string)
 327       fs_give((void **) &saved_string);
 328
 329     return(return_v);
 330 }
 331
 332
 333 /*----------------------------------------------------------------------
 334     Flag the fact the window has resized.
 335 */
 336 int
 337 pine_window_resize_callback (void)
 338 {
 339     DidResize = TRUE;
 340     return(0);
 341 }
 342
 343 void
 344 intr_proc(int state)
 345 {
 346     return;     /* no op */
 347 }
 348