diff options
Diffstat (limited to 'src/libs/3rdparty/libvterm/src/keyboard.c')
| -rw-r--r-- | src/libs/3rdparty/libvterm/src/keyboard.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/libs/3rdparty/libvterm/src/keyboard.c b/src/libs/3rdparty/libvterm/src/keyboard.c new file mode 100644 index 0000000000..d31c8be12d --- /dev/null +++ b/src/libs/3rdparty/libvterm/src/keyboard.c @@ -0,0 +1,226 @@ +#include "vterm_internal.h" + +#include <stdio.h> + +#include "utf8.h" + +void vterm_keyboard_unichar(VTerm *vt, uint32_t c, VTermModifier mod) +{ + /* The shift modifier is never important for Unicode characters + * apart from Space + */ + if(c != ' ') + mod &= ~VTERM_MOD_SHIFT; + + if(mod == 0) { + // Normal text - ignore just shift + char str[6]; + int seqlen = fill_utf8(c, str); + vterm_push_output_bytes(vt, str, seqlen); + return; + } + + int needs_CSIu; + switch(c) { + /* Special Ctrl- letters that can't be represented elsewise */ + case 'i': case 'j': case 'm': case '[': + needs_CSIu = 1; + break; + /* Ctrl-\ ] ^ _ don't need CSUu */ + case '\\': case ']': case '^': case '_': + needs_CSIu = 0; + break; + /* Shift-space needs CSIu */ + case ' ': + needs_CSIu = !!(mod & VTERM_MOD_SHIFT); + break; + /* All other characters needs CSIu except for letters a-z */ + default: + needs_CSIu = (c < 'a' || c > 'z'); + } + + /* ALT we can just prefix with ESC; anything else requires CSI u */ + if(needs_CSIu && (mod & ~VTERM_MOD_ALT)) { + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%du", c, mod+1); + return; + } + + if(mod & VTERM_MOD_CTRL) + c &= 0x1f; + + vterm_push_output_sprintf(vt, "%s%c", mod & VTERM_MOD_ALT ? ESC_S : "", c); +} + +typedef struct { + enum { + KEYCODE_NONE, + KEYCODE_LITERAL, + KEYCODE_TAB, + KEYCODE_ENTER, + KEYCODE_SS3, + KEYCODE_CSI, + KEYCODE_CSI_CURSOR, + KEYCODE_CSINUM, + KEYCODE_KEYPAD, + } type; + char literal; + int csinum; +} keycodes_s; + +static keycodes_s keycodes[] = { + { KEYCODE_NONE }, // NONE + + { KEYCODE_ENTER, '\r' }, // ENTER + { KEYCODE_TAB, '\t' }, // TAB + { KEYCODE_LITERAL, '\x7f' }, // BACKSPACE == ASCII DEL + { KEYCODE_LITERAL, '\x1b' }, // ESCAPE + + { KEYCODE_CSI_CURSOR, 'A' }, // UP + { KEYCODE_CSI_CURSOR, 'B' }, // DOWN + { KEYCODE_CSI_CURSOR, 'D' }, // LEFT + { KEYCODE_CSI_CURSOR, 'C' }, // RIGHT + + { KEYCODE_CSINUM, '~', 2 }, // INS + { KEYCODE_CSINUM, '~', 3 }, // DEL + { KEYCODE_CSI_CURSOR, 'H' }, // HOME + { KEYCODE_CSI_CURSOR, 'F' }, // END + { KEYCODE_CSINUM, '~', 5 }, // PAGEUP + { KEYCODE_CSINUM, '~', 6 }, // PAGEDOWN +}; + +static keycodes_s keycodes_fn[] = { + { KEYCODE_NONE }, // F0 - shouldn't happen + { KEYCODE_SS3, 'P' }, // F1 + { KEYCODE_SS3, 'Q' }, // F2 + { KEYCODE_SS3, 'R' }, // F3 + { KEYCODE_SS3, 'S' }, // F4 + { KEYCODE_CSINUM, '~', 15 }, // F5 + { KEYCODE_CSINUM, '~', 17 }, // F6 + { KEYCODE_CSINUM, '~', 18 }, // F7 + { KEYCODE_CSINUM, '~', 19 }, // F8 + { KEYCODE_CSINUM, '~', 20 }, // F9 + { KEYCODE_CSINUM, '~', 21 }, // F10 + { KEYCODE_CSINUM, '~', 23 }, // F11 + { KEYCODE_CSINUM, '~', 24 }, // F12 +}; + +static keycodes_s keycodes_kp[] = { + { KEYCODE_KEYPAD, '0', 'p' }, // KP_0 + { KEYCODE_KEYPAD, '1', 'q' }, // KP_1 + { KEYCODE_KEYPAD, '2', 'r' }, // KP_2 + { KEYCODE_KEYPAD, '3', 's' }, // KP_3 + { KEYCODE_KEYPAD, '4', 't' }, // KP_4 + { KEYCODE_KEYPAD, '5', 'u' }, // KP_5 + { KEYCODE_KEYPAD, '6', 'v' }, // KP_6 + { KEYCODE_KEYPAD, '7', 'w' }, // KP_7 + { KEYCODE_KEYPAD, '8', 'x' }, // KP_8 + { KEYCODE_KEYPAD, '9', 'y' }, // KP_9 + { KEYCODE_KEYPAD, '*', 'j' }, // KP_MULT + { KEYCODE_KEYPAD, '+', 'k' }, // KP_PLUS + { KEYCODE_KEYPAD, ',', 'l' }, // KP_COMMA + { KEYCODE_KEYPAD, '-', 'm' }, // KP_MINUS + { KEYCODE_KEYPAD, '.', 'n' }, // KP_PERIOD + { KEYCODE_KEYPAD, '/', 'o' }, // KP_DIVIDE + { KEYCODE_KEYPAD, '\n', 'M' }, // KP_ENTER + { KEYCODE_KEYPAD, '=', 'X' }, // KP_EQUAL +}; + +void vterm_keyboard_key(VTerm *vt, VTermKey key, VTermModifier mod) +{ + if(key == VTERM_KEY_NONE) + return; + + keycodes_s k; + if(key < VTERM_KEY_FUNCTION_0) { + if(key >= sizeof(keycodes)/sizeof(keycodes[0])) + return; + k = keycodes[key]; + } + else if(key >= VTERM_KEY_FUNCTION_0 && key <= VTERM_KEY_FUNCTION_MAX) { + if((key - VTERM_KEY_FUNCTION_0) >= sizeof(keycodes_fn)/sizeof(keycodes_fn[0])) + return; + k = keycodes_fn[key - VTERM_KEY_FUNCTION_0]; + } + else if(key >= VTERM_KEY_KP_0) { + if((key - VTERM_KEY_KP_0) >= sizeof(keycodes_kp)/sizeof(keycodes_kp[0])) + return; + k = keycodes_kp[key - VTERM_KEY_KP_0]; + } + + switch(k.type) { + case KEYCODE_NONE: + break; + + case KEYCODE_TAB: + /* Shift-Tab is CSI Z but plain Tab is 0x09 */ + if(mod == VTERM_MOD_SHIFT) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "Z"); + else if(mod & VTERM_MOD_SHIFT) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "1;%dZ", mod+1); + else + goto case_LITERAL; + break; + + case KEYCODE_ENTER: + /* Enter is CRLF in newline mode, but just LF in linefeed */ + if(vt->state->mode.newline) + vterm_push_output_sprintf(vt, "\r\n"); + else + goto case_LITERAL; + break; + + case KEYCODE_LITERAL: case_LITERAL: + if(mod & (VTERM_MOD_SHIFT|VTERM_MOD_CTRL)) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%du", k.literal, mod+1); + else + vterm_push_output_sprintf(vt, mod & VTERM_MOD_ALT ? ESC_S "%c" : "%c", k.literal); + break; + + case KEYCODE_SS3: case_SS3: + if(mod == 0) + vterm_push_output_sprintf_ctrl(vt, C1_SS3, "%c", k.literal); + else + goto case_CSI; + break; + + case KEYCODE_CSI: case_CSI: + if(mod == 0) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%c", k.literal); + else + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "1;%d%c", mod + 1, k.literal); + break; + + case KEYCODE_CSINUM: + if(mod == 0) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d%c", k.csinum, k.literal); + else + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%d%c", k.csinum, mod + 1, k.literal); + break; + + case KEYCODE_CSI_CURSOR: + if(vt->state->mode.cursor) + goto case_SS3; + else + goto case_CSI; + + case KEYCODE_KEYPAD: + if(vt->state->mode.keypad) { + k.literal = k.csinum; + goto case_SS3; + } + else + goto case_LITERAL; + } +} + +void vterm_keyboard_start_paste(VTerm *vt) +{ + if(vt->state->mode.bracketpaste) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "200~"); +} + +void vterm_keyboard_end_paste(VTerm *vt) +{ + if(vt->state->mode.bracketpaste) + vterm_push_output_sprintf_ctrl(vt, C1_CSI, "201~"); +} |