| 1 | /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
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| 2 | * All rights reserved.
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| 3 | * Copyright (c) 2008, Jiri Svoboda - All Rights Reserved
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * Redistributions of source code must retain the above copyright notice, this
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| 9 | * list of conditions and the following disclaimer.
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| 10 | *
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| 11 | * Redistributions in binary form must reproduce the above copyright notice,
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| 12 | * this list of conditions and the following disclaimer in the documentation
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| 13 | * and/or other materials provided with the distribution.
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| 14 | *
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| 15 | * Neither the name of the original program's authors nor the names of its
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| 16 | * contributors may be used to endorse or promote products derived from this
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| 17 | * software without specific prior written permission.
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| 18 | *
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| 20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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| 23 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 29 | * POSSIBILITY OF SUCH DAMAGE.
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| 30 | */
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| 31 |
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| 32 | #include <stdio.h>
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| 33 | #include <stdlib.h>
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| 34 | #include <string.h>
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| 35 | #include <io/console.h>
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| 36 | #include <io/keycode.h>
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| 37 | #include <io/style.h>
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| 38 | #include <io/color.h>
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| 39 | #include <vfs/vfs.h>
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| 40 | #include <clipboard.h>
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| 41 | #include <macros.h>
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| 42 | #include <errno.h>
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| 43 | #include <assert.h>
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| 44 | #include <bool.h>
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| 45 |
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| 46 | #include "config.h"
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| 47 | #include "util.h"
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| 48 | #include "scli.h"
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| 49 | #include "input.h"
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| 50 | #include "errors.h"
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| 51 | #include "exec.h"
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| 52 |
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| 53 | #define HISTORY_LEN 10
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| 54 |
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| 55 | /** Text input field. */
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| 56 | typedef struct {
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| 57 | /** Buffer holding text currently being edited */
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| 58 | wchar_t buffer[INPUT_MAX + 1];
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| 59 | /** Screen coordinates of the top-left corner of the text field */
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| 60 | int col0, row0;
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| 61 | /** Screen dimensions */
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| 62 | int con_cols, con_rows;
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| 63 | /** Number of characters in @c buffer */
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| 64 | int nc;
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| 65 | /** Caret position within buffer */
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| 66 | int pos;
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| 67 | /** Selection mark position within buffer */
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| 68 | int sel_start;
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| 69 |
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| 70 | /** History (dynamically allocated strings) */
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| 71 | char *history[1 + HISTORY_LEN];
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| 72 | /** Number of entries in @c history, not counting [0] */
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| 73 | int hnum;
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| 74 | /** Current position in history */
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| 75 | int hpos;
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| 76 | /** Exit flag */
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| 77 | bool done;
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| 78 | } tinput_t;
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| 79 |
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| 80 | /** Seek direction */
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| 81 | typedef enum {
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| 82 | seek_backward = -1,
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| 83 | seek_forward = 1
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| 84 | } seek_dir_t;
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| 85 |
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| 86 | static tinput_t tinput;
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| 87 |
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| 88 | static char *tinput_read(tinput_t *ti);
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| 89 | static void tinput_insert_string(tinput_t *ti, const char *str);
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| 90 | static void tinput_sel_get_bounds(tinput_t *ti, int *sa, int *sb);
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| 91 | static bool tinput_sel_active(tinput_t *ti);
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| 92 | static void tinput_sel_all(tinput_t *ti);
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| 93 | static void tinput_sel_delete(tinput_t *ti);
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| 94 | static void tinput_key_ctrl(tinput_t *ti, console_event_t *ev);
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| 95 | static void tinput_key_shift(tinput_t *ti, console_event_t *ev);
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| 96 | static void tinput_key_ctrl_shift(tinput_t *ti, console_event_t *ev);
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| 97 | static void tinput_key_unmod(tinput_t *ti, console_event_t *ev);
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| 98 | static void tinput_pre_seek(tinput_t *ti, bool shift_held);
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| 99 | static void tinput_post_seek(tinput_t *ti, bool shift_held);
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| 100 |
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| 101 | /* Tokenizes input from console, sees if the first word is a built-in, if so
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| 102 | * invokes the built-in entry point (a[0]) passing all arguments in a[] to
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| 103 | * the handler */
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| 104 | int tok_input(cliuser_t *usr)
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| 105 | {
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| 106 | char *cmd[WORD_MAX];
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| 107 | int n = 0, i = 0;
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| 108 | int rc = 0;
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| 109 | char *tmp;
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| 110 |
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| 111 | if (NULL == usr->line)
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| 112 | return CL_EFAIL;
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| 113 |
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| 114 | tmp = str_dup(usr->line);
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| 115 |
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| 116 | cmd[n] = strtok(tmp, " ");
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| 117 | while (cmd[n] && n < WORD_MAX) {
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| 118 | cmd[++n] = strtok(NULL, " ");
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| 119 | }
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| 120 |
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| 121 | /* We have rubbish */
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| 122 | if (NULL == cmd[0]) {
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| 123 | rc = CL_ENOENT;
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| 124 | goto finit;
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| 125 | }
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| 126 |
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| 127 | /* Its a builtin command ? */
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| 128 | if ((i = (is_builtin(cmd[0]))) > -1) {
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| 129 | rc = run_builtin(i, cmd, usr);
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| 130 | goto finit;
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| 131 | /* Its a module ? */
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| 132 | } else if ((i = (is_module(cmd[0]))) > -1) {
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| 133 | rc = run_module(i, cmd);
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| 134 | goto finit;
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| 135 | }
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| 136 |
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| 137 | /* See what try_exec thinks of it */
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| 138 | rc = try_exec(cmd[0], cmd);
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| 139 |
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| 140 | finit:
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| 141 | if (NULL != usr->line) {
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| 142 | free(usr->line);
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| 143 | usr->line = (char *) NULL;
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| 144 | }
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| 145 | if (NULL != tmp)
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| 146 | free(tmp);
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| 147 |
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| 148 | return rc;
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| 149 | }
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| 150 |
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| 151 | static void tinput_display_tail(tinput_t *ti, int start, int pad)
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| 152 | {
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| 153 | static wchar_t dbuf[INPUT_MAX + 1];
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| 154 | int sa, sb;
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| 155 | int i, p;
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| 156 |
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| 157 | tinput_sel_get_bounds(ti, &sa, &sb);
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| 158 |
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| 159 | console_goto(fphone(stdout), (ti->col0 + start) % ti->con_cols,
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| 160 | ti->row0 + (ti->col0 + start) / ti->con_cols);
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| 161 | console_set_color(fphone(stdout), COLOR_BLACK, COLOR_WHITE, 0);
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| 162 |
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| 163 | p = start;
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| 164 | if (p < sa) {
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| 165 | memcpy(dbuf, ti->buffer + p, (sa - p) * sizeof(wchar_t));
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| 166 | dbuf[sa - p] = '\0';
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| 167 | printf("%ls", dbuf);
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| 168 | p = sa;
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| 169 | }
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| 170 |
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| 171 | if (p < sb) {
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| 172 | fflush(stdout);
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| 173 | console_set_color(fphone(stdout), COLOR_BLACK, COLOR_RED, 0);
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| 174 | memcpy(dbuf, ti->buffer + p,
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| 175 | (sb - p) * sizeof(wchar_t));
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| 176 | dbuf[sb - p] = '\0';
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| 177 | printf("%ls", dbuf);
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| 178 | p = sb;
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| 179 | }
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| 180 |
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| 181 | fflush(stdout);
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| 182 | console_set_color(fphone(stdout), COLOR_BLACK, COLOR_WHITE, 0);
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| 183 |
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| 184 | if (p < ti->nc) {
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| 185 | memcpy(dbuf, ti->buffer + p,
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| 186 | (ti->nc - p) * sizeof(wchar_t));
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| 187 | dbuf[ti->nc - p] = '\0';
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| 188 | printf("%ls", dbuf);
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| 189 | }
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| 190 |
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| 191 | for (i = 0; i < pad; ++i)
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| 192 | putchar(' ');
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| 193 | fflush(stdout);
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| 194 | }
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| 195 |
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| 196 | static char *tinput_get_str(tinput_t *ti)
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| 197 | {
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| 198 | return wstr_to_astr(ti->buffer);
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| 199 | }
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| 200 |
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| 201 | static void tinput_position_caret(tinput_t *ti)
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| 202 | {
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| 203 | console_goto(fphone(stdout), (ti->col0 + ti->pos) % ti->con_cols,
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| 204 | ti->row0 + (ti->col0 + ti->pos) / ti->con_cols);
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| 205 | }
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| 206 |
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| 207 | /** Update row0 in case the screen could have scrolled. */
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| 208 | static void tinput_update_origin(tinput_t *ti)
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| 209 | {
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| 210 | int width, rows;
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| 211 |
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| 212 | width = ti->col0 + ti->nc;
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| 213 | rows = (width / ti->con_cols) + 1;
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| 214 |
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| 215 | /* Update row0 if the screen scrolled. */
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| 216 | if (ti->row0 + rows > ti->con_rows)
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| 217 | ti->row0 = ti->con_rows - rows;
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| 218 | }
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| 219 |
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| 220 | static void tinput_insert_char(tinput_t *ti, wchar_t c)
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| 221 | {
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| 222 | int i;
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| 223 | int new_width, new_height;
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| 224 |
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| 225 | if (ti->nc == INPUT_MAX)
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| 226 | return;
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| 227 |
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| 228 | new_width = ti->col0 + ti->nc + 1;
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| 229 | if (new_width % ti->con_cols == 0) {
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| 230 | /* Advancing to new line. */
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| 231 | new_height = (new_width / ti->con_cols) + 1;
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| 232 | if (new_height >= ti->con_rows)
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| 233 | return; /* Disallow text longer than 1 page for now. */
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| 234 | }
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| 235 |
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| 236 | for (i = ti->nc; i > ti->pos; --i)
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| 237 | ti->buffer[i] = ti->buffer[i - 1];
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| 238 |
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| 239 | ti->buffer[ti->pos] = c;
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| 240 | ti->pos += 1;
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| 241 | ti->nc += 1;
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| 242 | ti->buffer[ti->nc] = '\0';
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| 243 | ti->sel_start = ti->pos;
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| 244 |
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| 245 | tinput_display_tail(ti, ti->pos - 1, 0);
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| 246 | tinput_update_origin(ti);
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| 247 | tinput_position_caret(ti);
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| 248 | }
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| 249 |
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| 250 | static void tinput_insert_string(tinput_t *ti, const char *str)
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| 251 | {
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| 252 | int i;
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| 253 | int new_width, new_height;
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| 254 | int ilen;
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| 255 | wchar_t c;
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| 256 | size_t off;
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| 257 |
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| 258 | ilen = min((ssize_t) str_length(str), INPUT_MAX - ti->nc);
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| 259 | if (ilen == 0)
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| 260 | return;
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| 261 |
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| 262 | new_width = ti->col0 + ti->nc + ilen;
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| 263 | new_height = (new_width / ti->con_cols) + 1;
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| 264 | if (new_height >= ti->con_rows)
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| 265 | return; /* Disallow text longer than 1 page for now. */
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| 266 |
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| 267 | for (i = ti->nc - 1; i >= ti->pos; --i)
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| 268 | ti->buffer[i + ilen] = ti->buffer[i];
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| 269 |
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| 270 | off = 0; i = 0;
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| 271 | while (i < ilen) {
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| 272 | c = str_decode(str, &off, STR_NO_LIMIT);
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| 273 | if (c == '\0')
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| 274 | break;
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| 275 |
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| 276 | /* Filter out non-printable chars. */
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| 277 | if (c < 32)
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| 278 | c = 32;
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| 279 |
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| 280 | ti->buffer[ti->pos + i] = c;
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| 281 | ++i;
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| 282 | }
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| 283 |
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| 284 | ti->pos += ilen;
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| 285 | ti->nc += ilen;
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| 286 | ti->buffer[ti->nc] = '\0';
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| 287 | ti->sel_start = ti->pos;
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| 288 |
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| 289 | tinput_display_tail(ti, ti->pos - ilen, 0);
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| 290 | tinput_update_origin(ti);
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| 291 | tinput_position_caret(ti);
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| 292 | }
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| 293 |
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| 294 | static void tinput_backspace(tinput_t *ti)
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| 295 | {
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| 296 | int i;
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| 297 |
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| 298 | if (tinput_sel_active(ti)) {
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| 299 | tinput_sel_delete(ti);
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| 300 | return;
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| 301 | }
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| 302 |
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| 303 | if (ti->pos == 0)
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| 304 | return;
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| 305 |
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| 306 | for (i = ti->pos; i < ti->nc; ++i)
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| 307 | ti->buffer[i - 1] = ti->buffer[i];
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| 308 | ti->pos -= 1;
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| 309 | ti->nc -= 1;
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| 310 | ti->buffer[ti->nc] = '\0';
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| 311 | ti->sel_start = ti->pos;
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| 312 |
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| 313 | tinput_display_tail(ti, ti->pos, 1);
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| 314 | tinput_position_caret(ti);
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| 315 | }
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| 316 |
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| 317 | static void tinput_delete(tinput_t *ti)
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| 318 | {
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| 319 | if (tinput_sel_active(ti)) {
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| 320 | tinput_sel_delete(ti);
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| 321 | return;
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| 322 | }
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| 323 |
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| 324 | if (ti->pos == ti->nc)
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| 325 | return;
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| 326 |
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| 327 | ti->pos += 1;
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| 328 | ti->sel_start = ti->pos;
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| 329 |
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| 330 | tinput_backspace(ti);
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| 331 | }
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| 332 |
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| 333 | static void tinput_seek_cell(tinput_t *ti, seek_dir_t dir, bool shift_held)
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| 334 | {
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| 335 | tinput_pre_seek(ti, shift_held);
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| 336 |
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| 337 | if (dir == seek_forward) {
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| 338 | if (ti->pos < ti->nc)
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| 339 | ti->pos += 1;
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| 340 | } else {
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| 341 | if (ti->pos > 0)
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| 342 | ti->pos -= 1;
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| 343 | }
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| 344 |
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| 345 | tinput_post_seek(ti, shift_held);
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| 346 | }
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| 347 |
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| 348 | static void tinput_seek_word(tinput_t *ti, seek_dir_t dir, bool shift_held)
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| 349 | {
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| 350 | tinput_pre_seek(ti, shift_held);
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| 351 |
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| 352 | if (dir == seek_forward) {
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| 353 | if (ti->pos == ti->nc)
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| 354 | return;
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| 355 |
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| 356 | while (1) {
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| 357 | ti->pos += 1;
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| 358 |
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| 359 | if (ti->pos == ti->nc)
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| 360 | break;
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| 361 |
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| 362 | if (ti->buffer[ti->pos - 1] == ' ' &&
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| 363 | ti->buffer[ti->pos] != ' ')
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| 364 | break;
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| 365 | }
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| 366 | } else {
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| 367 | if (ti->pos == 0)
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| 368 | return;
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| 369 |
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| 370 | while (1) {
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| 371 | ti->pos -= 1;
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| 372 |
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| 373 | if (ti->pos == 0)
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| 374 | break;
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| 375 |
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| 376 | if (ti->buffer[ti->pos - 1] == ' ' &&
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| 377 | ti->buffer[ti->pos] != ' ')
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| 378 | break;
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| 379 | }
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| 380 |
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| 381 | }
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| 382 |
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| 383 | tinput_post_seek(ti, shift_held);
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| 384 | }
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| 385 |
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| 386 | static void tinput_seek_vertical(tinput_t *ti, seek_dir_t dir, bool shift_held)
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| 387 | {
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| 388 | tinput_pre_seek(ti, shift_held);
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| 389 |
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| 390 | if (dir == seek_forward) {
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| 391 | if (ti->pos + ti->con_cols <= ti->nc)
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| 392 | ti->pos = ti->pos + ti->con_cols;
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| 393 | } else {
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| 394 | if (ti->pos - ti->con_cols >= 0)
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| 395 | ti->pos = ti->pos - ti->con_cols;
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| 396 | }
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| 397 |
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| 398 | tinput_post_seek(ti, shift_held);
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| 399 | }
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| 400 |
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| 401 | static void tinput_seek_max(tinput_t *ti, seek_dir_t dir, bool shift_held)
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| 402 | {
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| 403 | tinput_pre_seek(ti, shift_held);
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| 404 |
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| 405 | if (dir == seek_backward)
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| 406 | ti->pos = 0;
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| 407 | else
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| 408 | ti->pos = ti->nc;
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| 409 |
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| 410 | tinput_post_seek(ti, shift_held);
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| 411 | }
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| 412 |
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| 413 | static void tinput_pre_seek(tinput_t *ti, bool shift_held)
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| 414 | {
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| 415 | if (tinput_sel_active(ti) && !shift_held) {
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|---|
| 416 | /* Unselect and redraw. */
|
|---|
| 417 | ti->sel_start = ti->pos;
|
|---|
| 418 | tinput_display_tail(ti, 0, 0);
|
|---|
| 419 | tinput_position_caret(ti);
|
|---|
| 420 | }
|
|---|
| 421 | }
|
|---|
| 422 |
|
|---|
| 423 | static void tinput_post_seek(tinput_t *ti, bool shift_held)
|
|---|
| 424 | {
|
|---|
| 425 | if (shift_held) {
|
|---|
| 426 | /* Selecting text. Need redraw. */
|
|---|
| 427 | tinput_display_tail(ti, 0, 0);
|
|---|
| 428 | } else {
|
|---|
| 429 | /* Shift not held. Keep selection empty. */
|
|---|
| 430 | ti->sel_start = ti->pos;
|
|---|
| 431 | }
|
|---|
| 432 | tinput_position_caret(ti);
|
|---|
| 433 | }
|
|---|
| 434 |
|
|---|
| 435 | static void tinput_history_insert(tinput_t *ti, char *str)
|
|---|
| 436 | {
|
|---|
| 437 | int i;
|
|---|
| 438 |
|
|---|
| 439 | if (ti->hnum < HISTORY_LEN) {
|
|---|
| 440 | ti->hnum += 1;
|
|---|
| 441 | } else {
|
|---|
| 442 | if (ti->history[HISTORY_LEN] != NULL)
|
|---|
| 443 | free(ti->history[HISTORY_LEN]);
|
|---|
| 444 | }
|
|---|
| 445 |
|
|---|
| 446 | for (i = ti->hnum; i > 1; --i)
|
|---|
| 447 | ti->history[i] = ti->history[i - 1];
|
|---|
| 448 |
|
|---|
| 449 | ti->history[1] = str_dup(str);
|
|---|
| 450 |
|
|---|
| 451 | if (ti->history[0] != NULL) {
|
|---|
| 452 | free(ti->history[0]);
|
|---|
| 453 | ti->history[0] = NULL;
|
|---|
| 454 | }
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 | static void tinput_set_str(tinput_t *ti, char *str)
|
|---|
| 458 | {
|
|---|
| 459 | str_to_wstr(ti->buffer, INPUT_MAX, str);
|
|---|
| 460 | ti->nc = wstr_length(ti->buffer);
|
|---|
| 461 | ti->pos = ti->nc;
|
|---|
| 462 | ti->sel_start = ti->pos;
|
|---|
| 463 | }
|
|---|
| 464 |
|
|---|
| 465 | static void tinput_sel_get_bounds(tinput_t *ti, int *sa, int *sb)
|
|---|
| 466 | {
|
|---|
| 467 | if (ti->sel_start < ti->pos) {
|
|---|
| 468 | *sa = ti->sel_start;
|
|---|
| 469 | *sb = ti->pos;
|
|---|
| 470 | } else {
|
|---|
| 471 | *sa = ti->pos;
|
|---|
| 472 | *sb = ti->sel_start;
|
|---|
| 473 | }
|
|---|
| 474 | }
|
|---|
| 475 |
|
|---|
| 476 | static bool tinput_sel_active(tinput_t *ti)
|
|---|
| 477 | {
|
|---|
| 478 | return ti->sel_start != ti->pos;
|
|---|
| 479 | }
|
|---|
| 480 |
|
|---|
| 481 | static void tinput_sel_all(tinput_t *ti)
|
|---|
| 482 | {
|
|---|
| 483 | ti->sel_start = 0;
|
|---|
| 484 | ti->pos = ti->nc;
|
|---|
| 485 | tinput_display_tail(ti, 0, 0);
|
|---|
| 486 | tinput_position_caret(ti);
|
|---|
| 487 | }
|
|---|
| 488 |
|
|---|
| 489 | static void tinput_sel_delete(tinput_t *ti)
|
|---|
| 490 | {
|
|---|
| 491 | int sa, sb;
|
|---|
| 492 |
|
|---|
| 493 | tinput_sel_get_bounds(ti, &sa, &sb);
|
|---|
| 494 | if (sa == sb)
|
|---|
| 495 | return;
|
|---|
| 496 |
|
|---|
| 497 | memmove(ti->buffer + sa, ti->buffer + sb,
|
|---|
| 498 | (ti->nc - sb) * sizeof(wchar_t));
|
|---|
| 499 | ti->pos = ti->sel_start = sa;
|
|---|
| 500 | ti->nc -= (sb - sa);
|
|---|
| 501 | ti->buffer[ti->nc] = '\0';
|
|---|
| 502 |
|
|---|
| 503 | tinput_display_tail(ti, sa, sb - sa);
|
|---|
| 504 | tinput_position_caret(ti);
|
|---|
| 505 | }
|
|---|
| 506 |
|
|---|
| 507 | static void tinput_sel_copy_to_cb(tinput_t *ti)
|
|---|
| 508 | {
|
|---|
| 509 | int sa, sb;
|
|---|
| 510 | wchar_t tmp_c;
|
|---|
| 511 | char *str;
|
|---|
| 512 |
|
|---|
| 513 | tinput_sel_get_bounds(ti, &sa, &sb);
|
|---|
| 514 |
|
|---|
| 515 | if (sb < ti->nc) {
|
|---|
| 516 | tmp_c = ti->buffer[sb];
|
|---|
| 517 | ti->buffer[sb] = '\0';
|
|---|
| 518 | }
|
|---|
| 519 |
|
|---|
| 520 | str = wstr_to_astr(ti->buffer + sa);
|
|---|
| 521 |
|
|---|
| 522 | if (sb < ti->nc)
|
|---|
| 523 | ti->buffer[sb] = tmp_c;
|
|---|
| 524 |
|
|---|
| 525 | if (str == NULL)
|
|---|
| 526 | goto error;
|
|---|
| 527 |
|
|---|
| 528 | if (clipboard_put_str(str) != EOK)
|
|---|
| 529 | goto error;
|
|---|
| 530 |
|
|---|
| 531 | free(str);
|
|---|
| 532 | return;
|
|---|
| 533 | error:
|
|---|
| 534 | return;
|
|---|
| 535 | /* TODO: Give the user some warning. */
|
|---|
| 536 | }
|
|---|
| 537 |
|
|---|
| 538 | static void tinput_paste_from_cb(tinput_t *ti)
|
|---|
| 539 | {
|
|---|
| 540 | char *str;
|
|---|
| 541 | int rc;
|
|---|
| 542 |
|
|---|
| 543 | rc = clipboard_get_str(&str);
|
|---|
| 544 | if (rc != EOK || str == NULL)
|
|---|
| 545 | return; /* TODO: Give the user some warning. */
|
|---|
| 546 |
|
|---|
| 547 | tinput_insert_string(ti, str);
|
|---|
| 548 | free(str);
|
|---|
| 549 | }
|
|---|
| 550 |
|
|---|
| 551 | static void tinput_history_seek(tinput_t *ti, int offs)
|
|---|
| 552 | {
|
|---|
| 553 | int pad;
|
|---|
| 554 |
|
|---|
| 555 | if (ti->hpos + offs < 0 || ti->hpos + offs > ti->hnum)
|
|---|
| 556 | return;
|
|---|
| 557 |
|
|---|
| 558 | if (ti->history[ti->hpos] != NULL) {
|
|---|
| 559 | free(ti->history[ti->hpos]);
|
|---|
| 560 | ti->history[ti->hpos] = NULL;
|
|---|
| 561 | }
|
|---|
| 562 |
|
|---|
| 563 | ti->history[ti->hpos] = tinput_get_str(ti);
|
|---|
| 564 | ti->hpos += offs;
|
|---|
| 565 |
|
|---|
| 566 | pad = ti->nc - str_length(ti->history[ti->hpos]);
|
|---|
| 567 | if (pad < 0) pad = 0;
|
|---|
| 568 |
|
|---|
| 569 | tinput_set_str(ti, ti->history[ti->hpos]);
|
|---|
| 570 | tinput_display_tail(ti, 0, pad);
|
|---|
| 571 | tinput_update_origin(ti);
|
|---|
| 572 | tinput_position_caret(ti);
|
|---|
| 573 | }
|
|---|
| 574 |
|
|---|
| 575 | /** Initialize text input field.
|
|---|
| 576 | *
|
|---|
| 577 | * Must be called before using the field. It clears the history.
|
|---|
| 578 | */
|
|---|
| 579 | static void tinput_init(tinput_t *ti)
|
|---|
| 580 | {
|
|---|
| 581 | ti->hnum = 0;
|
|---|
| 582 | ti->hpos = 0;
|
|---|
| 583 | ti->history[0] = NULL;
|
|---|
| 584 | }
|
|---|
| 585 |
|
|---|
| 586 | /** Read in one line of input. */
|
|---|
| 587 | static char *tinput_read(tinput_t *ti)
|
|---|
| 588 | {
|
|---|
| 589 | console_event_t ev;
|
|---|
| 590 | char *str;
|
|---|
| 591 |
|
|---|
| 592 | fflush(stdout);
|
|---|
| 593 |
|
|---|
| 594 | if (console_get_size(fphone(stdin), &ti->con_cols, &ti->con_rows) != EOK)
|
|---|
| 595 | return NULL;
|
|---|
| 596 | if (console_get_pos(fphone(stdin), &ti->col0, &ti->row0) != EOK)
|
|---|
| 597 | return NULL;
|
|---|
| 598 |
|
|---|
| 599 | ti->pos = ti->sel_start = 0;
|
|---|
| 600 | ti->nc = 0;
|
|---|
| 601 | ti->buffer[0] = '\0';
|
|---|
| 602 | ti->done = false;
|
|---|
| 603 |
|
|---|
| 604 | while (!ti->done) {
|
|---|
| 605 | fflush(stdout);
|
|---|
| 606 | if (!console_get_event(fphone(stdin), &ev))
|
|---|
| 607 | return NULL;
|
|---|
| 608 |
|
|---|
| 609 | if (ev.type != KEY_PRESS)
|
|---|
| 610 | continue;
|
|---|
| 611 |
|
|---|
| 612 | if ((ev.mods & KM_CTRL) != 0 &&
|
|---|
| 613 | (ev.mods & (KM_ALT | KM_SHIFT)) == 0) {
|
|---|
| 614 | tinput_key_ctrl(ti, &ev);
|
|---|
| 615 | }
|
|---|
| 616 |
|
|---|
| 617 | if ((ev.mods & KM_SHIFT) != 0 &&
|
|---|
| 618 | (ev.mods & (KM_CTRL | KM_ALT)) == 0) {
|
|---|
| 619 | tinput_key_shift(ti, &ev);
|
|---|
| 620 | }
|
|---|
| 621 |
|
|---|
| 622 | if ((ev.mods & KM_CTRL) != 0 &&
|
|---|
| 623 | (ev.mods & KM_SHIFT) != 0 &&
|
|---|
| 624 | (ev.mods & KM_ALT) == 0) {
|
|---|
| 625 | tinput_key_ctrl_shift(ti, &ev);
|
|---|
| 626 | }
|
|---|
| 627 |
|
|---|
| 628 | if ((ev.mods & (KM_CTRL | KM_ALT | KM_SHIFT)) == 0) {
|
|---|
| 629 | tinput_key_unmod(ti, &ev);
|
|---|
| 630 | }
|
|---|
| 631 |
|
|---|
| 632 | if (ev.c >= ' ') {
|
|---|
| 633 | tinput_sel_delete(ti);
|
|---|
| 634 | tinput_insert_char(ti, ev.c);
|
|---|
| 635 | }
|
|---|
| 636 | }
|
|---|
| 637 |
|
|---|
| 638 | ti->pos = ti->nc;
|
|---|
| 639 | tinput_position_caret(ti);
|
|---|
| 640 | putchar('\n');
|
|---|
| 641 |
|
|---|
| 642 | str = tinput_get_str(ti);
|
|---|
| 643 | if (str_cmp(str, "") != 0)
|
|---|
| 644 | tinput_history_insert(ti, str);
|
|---|
| 645 |
|
|---|
| 646 | ti->hpos = 0;
|
|---|
| 647 |
|
|---|
| 648 | return str;
|
|---|
| 649 | }
|
|---|
| 650 |
|
|---|
| 651 | static void tinput_key_ctrl(tinput_t *ti, console_event_t *ev)
|
|---|
| 652 | {
|
|---|
| 653 | switch (ev->key) {
|
|---|
| 654 | case KC_LEFT:
|
|---|
| 655 | tinput_seek_word(ti, seek_backward, false);
|
|---|
| 656 | break;
|
|---|
| 657 | case KC_RIGHT:
|
|---|
| 658 | tinput_seek_word(ti, seek_forward, false);
|
|---|
| 659 | break;
|
|---|
| 660 | case KC_UP:
|
|---|
| 661 | tinput_seek_vertical(ti, seek_backward, false);
|
|---|
| 662 | break;
|
|---|
| 663 | case KC_DOWN:
|
|---|
| 664 | tinput_seek_vertical(ti, seek_forward, false);
|
|---|
| 665 | break;
|
|---|
| 666 | case KC_X:
|
|---|
| 667 | tinput_sel_copy_to_cb(ti);
|
|---|
| 668 | tinput_sel_delete(ti);
|
|---|
| 669 | break;
|
|---|
| 670 | case KC_C:
|
|---|
| 671 | tinput_sel_copy_to_cb(ti);
|
|---|
| 672 | break;
|
|---|
| 673 | case KC_V:
|
|---|
| 674 | tinput_sel_delete(ti);
|
|---|
| 675 | tinput_paste_from_cb(ti);
|
|---|
| 676 | break;
|
|---|
| 677 | case KC_A:
|
|---|
| 678 | tinput_sel_all(ti);
|
|---|
| 679 | break;
|
|---|
| 680 | default:
|
|---|
| 681 | break;
|
|---|
| 682 | }
|
|---|
| 683 | }
|
|---|
| 684 |
|
|---|
| 685 | static void tinput_key_ctrl_shift(tinput_t *ti, console_event_t *ev)
|
|---|
| 686 | {
|
|---|
| 687 | switch (ev->key) {
|
|---|
| 688 | case KC_LEFT:
|
|---|
| 689 | tinput_seek_word(ti, seek_backward, true);
|
|---|
| 690 | break;
|
|---|
| 691 | case KC_RIGHT:
|
|---|
| 692 | tinput_seek_word(ti, seek_forward, true);
|
|---|
| 693 | break;
|
|---|
| 694 | case KC_UP:
|
|---|
| 695 | tinput_seek_vertical(ti, seek_backward, true);
|
|---|
| 696 | break;
|
|---|
| 697 | case KC_DOWN:
|
|---|
| 698 | tinput_seek_vertical(ti, seek_forward, true);
|
|---|
| 699 | break;
|
|---|
| 700 | default:
|
|---|
| 701 | break;
|
|---|
| 702 | }
|
|---|
| 703 | }
|
|---|
| 704 |
|
|---|
| 705 | static void tinput_key_shift(tinput_t *ti, console_event_t *ev)
|
|---|
| 706 | {
|
|---|
| 707 | switch (ev->key) {
|
|---|
| 708 | case KC_LEFT:
|
|---|
| 709 | tinput_seek_cell(ti, seek_backward, true);
|
|---|
| 710 | break;
|
|---|
| 711 | case KC_RIGHT:
|
|---|
| 712 | tinput_seek_cell(ti, seek_forward, true);
|
|---|
| 713 | break;
|
|---|
| 714 | case KC_UP:
|
|---|
| 715 | tinput_seek_vertical(ti, seek_backward, true);
|
|---|
| 716 | break;
|
|---|
| 717 | case KC_DOWN:
|
|---|
| 718 | tinput_seek_vertical(ti, seek_forward, true);
|
|---|
| 719 | break;
|
|---|
| 720 | case KC_HOME:
|
|---|
| 721 | tinput_seek_max(ti, seek_backward, true);
|
|---|
| 722 | break;
|
|---|
| 723 | case KC_END:
|
|---|
| 724 | tinput_seek_max(ti, seek_forward, true);
|
|---|
| 725 | break;
|
|---|
| 726 | default:
|
|---|
| 727 | break;
|
|---|
| 728 | }
|
|---|
| 729 | }
|
|---|
| 730 |
|
|---|
| 731 | static void tinput_key_unmod(tinput_t *ti, console_event_t *ev)
|
|---|
| 732 | {
|
|---|
| 733 | switch (ev->key) {
|
|---|
| 734 | case KC_ENTER:
|
|---|
| 735 | case KC_NENTER:
|
|---|
| 736 | ti->done = true;
|
|---|
| 737 | break;
|
|---|
| 738 | case KC_BACKSPACE:
|
|---|
| 739 | tinput_backspace(ti);
|
|---|
| 740 | break;
|
|---|
| 741 | case KC_DELETE:
|
|---|
| 742 | tinput_delete(ti);
|
|---|
| 743 | break;
|
|---|
| 744 | case KC_LEFT:
|
|---|
| 745 | tinput_seek_cell(ti, seek_backward, false);
|
|---|
| 746 | break;
|
|---|
| 747 | case KC_RIGHT:
|
|---|
| 748 | tinput_seek_cell(ti, seek_forward, false);
|
|---|
| 749 | break;
|
|---|
| 750 | case KC_HOME:
|
|---|
| 751 | tinput_seek_max(ti, seek_backward, false);
|
|---|
| 752 | break;
|
|---|
| 753 | case KC_END:
|
|---|
| 754 | tinput_seek_max(ti, seek_forward, false);
|
|---|
| 755 | break;
|
|---|
| 756 | case KC_UP:
|
|---|
| 757 | tinput_history_seek(ti, +1);
|
|---|
| 758 | break;
|
|---|
| 759 | case KC_DOWN:
|
|---|
| 760 | tinput_history_seek(ti, -1);
|
|---|
| 761 | break;
|
|---|
| 762 | default:
|
|---|
| 763 | break;
|
|---|
| 764 | }
|
|---|
| 765 | }
|
|---|
| 766 |
|
|---|
| 767 | void get_input(cliuser_t *usr)
|
|---|
| 768 | {
|
|---|
| 769 | char *str;
|
|---|
| 770 |
|
|---|
| 771 | fflush(stdout);
|
|---|
| 772 | console_set_style(fphone(stdout), STYLE_EMPHASIS);
|
|---|
| 773 | printf("%s", usr->prompt);
|
|---|
| 774 | fflush(stdout);
|
|---|
| 775 | console_set_style(fphone(stdout), STYLE_NORMAL);
|
|---|
| 776 |
|
|---|
| 777 | str = tinput_read(&tinput);
|
|---|
| 778 |
|
|---|
| 779 | /* Check for empty input. */
|
|---|
| 780 | if (str_cmp(str, "") == 0) {
|
|---|
| 781 | free(str);
|
|---|
| 782 | return;
|
|---|
| 783 | }
|
|---|
| 784 |
|
|---|
| 785 | usr->line = str;
|
|---|
| 786 | return;
|
|---|
| 787 | }
|
|---|
| 788 |
|
|---|
| 789 | void input_init(void)
|
|---|
| 790 | {
|
|---|
| 791 | tinput_init(&tinput);
|
|---|
| 792 | }
|
|---|