From: simon Date: Thu, 10 Oct 2002 12:14:05 +0000 (+0000) Subject: Half-decent keyboard handling for pterm. Not very well done - it X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/commitdiff_plain/a57cd64bc1a34bd8d8ca6ab1c9deb9c3eb1cdc6a?hp=2c0380dc65ab5ea511633764aaa59de4c07e669b Half-decent keyboard handling for pterm. Not very well done - it would have been better to abstract the general key-handling rules away from the platform-specific keysyms rather than doing clone- and-hack as I've done - but it'll serve for now. Now all I need is a real pty back end and pterm should be a just-about-usable prototype. git-svn-id: svn://svn.tartarus.org/sgt/putty@2013 cda61777-01e9-0310-a592-d414129be87e --- diff --git a/unix/pterm.c b/unix/pterm.c index 04e26a49..97fe6c40 100644 --- a/unix/pterm.c +++ b/unix/pterm.c @@ -9,6 +9,7 @@ #include #include #include +#include #define PUTTY_DO_GLOBALS /* actually _define_ globals */ #include "putty.h" @@ -230,9 +231,354 @@ gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data) gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data) { /* struct gui_data *inst = (struct gui_data *)data; */ + char output[32]; + int start, end; if (event->type == GDK_KEY_PRESS) { - ldisc_send(event->string, strlen(event->string), 1); +#ifdef KEY_DEBUGGING + { + int i; + printf("keypress: keyval = %04x, state = %08x; string =", + event->keyval, event->state); + for (i = 0; event->string[i]; i++) + printf(" %02x", (unsigned char) event->string[i]); + printf("\n"); + } +#endif + + /* + * NYI: + * - Shift-PgUp/PgDn for scrollbar + * - nethack mode + * - alt+numpad + * - Compose key (!!! requires Unicode faff before even trying) + * - Shift-Ins for paste (need to deal with pasting first) + */ + + /* ALT+things gives leading Escape. */ + output[0] = '\033'; + strncpy(output+1, event->string, 31); + output[31] = '\0'; + end = strlen(output); + if (event->state & GDK_MOD1_MASK) + start = 0; + else + start = 1; + + /* Control-` is the same as Control-\ (unless gtk has a better idea) */ + if (!event->string[0] && event->keyval == '`' && + (event->state & GDK_CONTROL_MASK)) { + output[1] = '\x1C'; + end = 2; + } + + /* Control-Break is the same as Control-C */ + if (event->keyval == GDK_Break && + (event->state & GDK_CONTROL_MASK)) { + output[1] = '\003'; + end = 2; + } + + /* Control-2, Control-Space and Control-@ are NUL */ + if (!event->string[0] && + (event->keyval == ' ' || event->keyval == '2' || + event->keyval == '@') && + (event->state & (GDK_SHIFT_MASK | + GDK_CONTROL_MASK)) == GDK_CONTROL_MASK) { + output[1] = '\0'; + end = 2; + } + + /* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */ + if (!event->string[0] && event->keyval == ' ' && + (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) == + (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) { + output[1] = '\240'; + end = 2; + } + + /* We don't let GTK tell us what Backspace is! We know better. */ + if (event->keyval == GDK_BackSpace && + !(event->state & GDK_SHIFT_MASK)) { + output[1] = cfg.bksp_is_delete ? '\x7F' : '\x08'; + end = 2; + } + + /* Shift-Tab is ESC [ Z */ + if (event->keyval == GDK_ISO_Left_Tab || + (event->keyval == GDK_Tab && (event->state & GDK_SHIFT_MASK))) { + end = 1 + sprintf(output+1, "\033[Z"); + } + + /* + * Application keypad mode. + */ + if (app_keypad_keys && !cfg.no_applic_k) { + int xkey = 0; + switch (event->keyval) { + case GDK_Num_Lock: xkey = 'P'; break; + case GDK_KP_Divide: xkey = 'Q'; break; + case GDK_KP_Multiply: xkey = 'R'; break; + case GDK_KP_Subtract: xkey = 'S'; break; + /* + * Keypad + is tricky. It covers a space that would + * be taken up on the VT100 by _two_ keys; so we + * let Shift select between the two. Worse still, + * in xterm function key mode we change which two... + */ + case GDK_KP_Add: + if (cfg.funky_type == 2) { + if (event->state & GDK_SHIFT_MASK) + xkey = 'l'; + else + xkey = 'k'; + } else if (event->state & GDK_SHIFT_MASK) + xkey = 'm'; + else + xkey = 'l'; + break; + case GDK_KP_Enter: xkey = 'M'; break; + case GDK_KP_0: case GDK_KP_Insert: xkey = 'p'; break; + case GDK_KP_1: case GDK_KP_End: xkey = 'q'; break; + case GDK_KP_2: case GDK_KP_Down: xkey = 'r'; break; + case GDK_KP_3: case GDK_KP_Page_Down: xkey = 's'; break; + case GDK_KP_4: case GDK_KP_Left: xkey = 't'; break; + case GDK_KP_5: case GDK_KP_Begin: xkey = 'u'; break; + case GDK_KP_6: case GDK_KP_Right: xkey = 'v'; break; + case GDK_KP_7: case GDK_KP_Home: xkey = 'w'; break; + case GDK_KP_8: case GDK_KP_Up: xkey = 'x'; break; + case GDK_KP_9: case GDK_KP_Page_Up: xkey = 'y'; break; + case GDK_KP_Decimal: case GDK_KP_Delete: xkey = 'n'; break; + } + if (xkey) { + if (vt52_mode) { + if (xkey >= 'P' && xkey <= 'S') + end = 1 + sprintf(output+1, "\033%c", xkey); + else + end = 1 + sprintf(output+1, "\033?%c", xkey); + } else + end = 1 + sprintf(output+1, "\033O%c", xkey); + goto done; + } + } + + /* + * Next, all the keys that do tilde codes. (ESC '[' nn '~', + * for integer decimal nn.) + * + * We also deal with the weird ones here. Linux VCs replace F1 + * to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but + * does replace Home and End (1~ and 4~) by ESC [ H and ESC O w + * respectively. + */ + { + int code = 0; + switch (event->keyval) { + case GDK_F1: + code = (event->state & GDK_SHIFT_MASK ? 23 : 11); + break; + case GDK_F2: + code = (event->state & GDK_SHIFT_MASK ? 24 : 12); + break; + case GDK_F3: + code = (event->state & GDK_SHIFT_MASK ? 25 : 13); + break; + case GDK_F4: + code = (event->state & GDK_SHIFT_MASK ? 26 : 14); + break; + case GDK_F5: + code = (event->state & GDK_SHIFT_MASK ? 28 : 15); + break; + case GDK_F6: + code = (event->state & GDK_SHIFT_MASK ? 29 : 17); + break; + case GDK_F7: + code = (event->state & GDK_SHIFT_MASK ? 31 : 18); + break; + case GDK_F8: + code = (event->state & GDK_SHIFT_MASK ? 32 : 19); + break; + case GDK_F9: + code = (event->state & GDK_SHIFT_MASK ? 33 : 20); + break; + case GDK_F10: + code = (event->state & GDK_SHIFT_MASK ? 34 : 21); + break; + case GDK_F11: + code = 23; + break; + case GDK_F12: + code = 24; + break; + case GDK_F13: + code = 25; + break; + case GDK_F14: + code = 26; + break; + case GDK_F15: + code = 28; + break; + case GDK_F16: + code = 29; + break; + case GDK_F17: + code = 31; + break; + case GDK_F18: + code = 32; + break; + case GDK_F19: + code = 33; + break; + case GDK_F20: + code = 34; + break; + } + if (!(event->state & GDK_CONTROL_MASK)) switch (event->keyval) { + case GDK_Home: case GDK_KP_Home: + code = 1; + break; + case GDK_Insert: case GDK_KP_Insert: + code = 2; + break; + case GDK_Delete: case GDK_KP_Delete: + code = 3; + break; + case GDK_End: case GDK_KP_End: + code = 4; + break; + case GDK_Page_Up: case GDK_KP_Page_Up: + code = 5; + break; + case GDK_Page_Down: case GDK_KP_Page_Down: + code = 6; + break; + } + /* Reorder edit keys to physical order */ + if (cfg.funky_type == 3 && code <= 6) + code = "\0\2\1\4\5\3\6"[code]; + + if (vt52_mode && code > 0 && code <= 6) { + end = 1 + sprintf(output+1, "\x1B%c", " HLMEIG"[code]); + goto done; + } + + if (cfg.funky_type == 5 && /* SCO function keys */ + code >= 11 && code <= 34) { + char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{"; + int index = 0; + switch (event->keyval) { + case GDK_F1: index = 0; break; + case GDK_F2: index = 1; break; + case GDK_F3: index = 2; break; + case GDK_F4: index = 3; break; + case GDK_F5: index = 4; break; + case GDK_F6: index = 5; break; + case GDK_F7: index = 6; break; + case GDK_F8: index = 7; break; + case GDK_F9: index = 8; break; + case GDK_F10: index = 9; break; + case GDK_F11: index = 10; break; + case GDK_F12: index = 11; break; + } + if (event->state & GDK_SHIFT_MASK) index += 12; + if (event->state & GDK_CONTROL_MASK) index += 24; + end = 1 + sprintf(output+1, "\x1B[%c", codes[index]); + goto done; + } + if (cfg.funky_type == 5 && /* SCO small keypad */ + code >= 1 && code <= 6) { + char codes[] = "HL.FIG"; + if (code == 3) { + output[1] = '\x7F'; + end = 2; + } else { + end = 1 + sprintf(output+1, "\x1B[%c", codes[code-1]); + } + goto done; + } + if ((vt52_mode || cfg.funky_type == 4) && code >= 11 && code <= 24) { + int offt = 0; + if (code > 15) + offt++; + if (code > 21) + offt++; + if (vt52_mode) + end = 1 + sprintf(output+1, + "\x1B%c", code + 'P' - 11 - offt); + else + end = 1 + sprintf(output+1, + "\x1BO%c", code + 'P' - 11 - offt); + goto done; + } + if (cfg.funky_type == 1 && code >= 11 && code <= 15) { + end = 1 + sprintf(output+1, "\x1B[[%c", code + 'A' - 11); + goto done; + } + if (cfg.funky_type == 2 && code >= 11 && code <= 14) { + if (vt52_mode) + end = 1 + sprintf(output+1, "\x1B%c", code + 'P' - 11); + else + end = 1 + sprintf(output+1, "\x1BO%c", code + 'P' - 11); + goto done; + } + if (cfg.rxvt_homeend && (code == 1 || code == 4)) { + end = 1 + sprintf(output+1, code == 1 ? "\x1B[H" : "\x1BOw"); + goto done; + } + if (code) { + end = 1 + sprintf(output+1, "\x1B[%d~", code); + goto done; + } + } + + /* + * Cursor keys. (This includes the numberpad cursor keys, + * if we haven't already done them due to app keypad mode.) + * + * Here we also process un-numlocked un-appkeypadded KP5, + * which sends ESC [ G. + */ + { + int xkey = 0; + switch (event->keyval) { + case GDK_Up: case GDK_KP_Up: xkey = 'A'; break; + case GDK_Down: case GDK_KP_Down: xkey = 'B'; break; + case GDK_Right: case GDK_KP_Right: xkey = 'C'; break; + case GDK_Left: case GDK_KP_Left: xkey = 'D'; break; + case GDK_Begin: case GDK_KP_Begin: xkey = 'G'; break; + } + if (xkey) { + /* + * The arrow keys normally do ESC [ A and so on. In + * app cursor keys mode they do ESC O A instead. + * Ctrl toggles the two modes. + */ + if (vt52_mode) { + end = 1 + sprintf(output+1, "\033%c", xkey); + } else if (!app_cursor_keys ^ + !(event->state & GDK_CONTROL_MASK)) { + end = 1 + sprintf(output+1, "\033O%c", xkey); + } else { + end = 1 + sprintf(output+1, "\033[%c", xkey); + } + goto done; + } + } + + done: + +#ifdef KEY_DEBUGGING + { + int i; + printf("generating sequence:"); + for (i = start; i < end; i++) + printf(" %02x", (unsigned char) output[i]); + printf("\n"); + } +#endif + ldisc_send(output+start, end-start, 1); term_out(); }