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1 | /* Copyright (C) 2008 Ricardo Catalinas Jiménez <jimenezrick@gmail.com> |
2 | * | |
3 | * This program is free software: you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation, either version 3 of the License, or | |
6 | * (at your option) any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #include "fm.h" | |
18 | ||
19 | void get_key(void) | |
20 | { | |
21 | static int command_repetitions = -1; | |
22 | static chtype previous_key = 0; | |
23 | char *info; | |
24 | chtype key; | |
25 | ||
26 | #ifdef INOTIFY | |
27 | while ((key = getch()) == ERR) | |
28 | watch_events(); | |
29 | #else | |
30 | key = getch(); | |
31 | #endif | |
32 | if (key != KEY_RESIZE) | |
33 | clear_info(); | |
34 | ||
35 | if (isdigit(key)) { | |
36 | if (command_repetitions == -1) | |
37 | command_repetitions = key - '0'; | |
38 | else { | |
39 | command_repetitions *= 10; | |
40 | command_repetitions += key - '0'; | |
41 | } | |
42 | previous_key = key; | |
43 | ||
44 | return; | |
45 | } | |
46 | ||
47 | if (previous_key == 'f') { | |
48 | select_next_line_by_first_letter((char) key); | |
49 | command_repetitions = -1; | |
50 | previous_key = 0; | |
51 | ||
52 | return; | |
53 | } else if (previous_key == 'F') { | |
54 | select_previous_line_by_first_letter((char) key); | |
55 | command_repetitions = -1; | |
56 | previous_key = 0; | |
57 | ||
58 | return; | |
59 | } | |
60 | ||
61 | if (command_repetitions == -1) | |
62 | command_repetitions = 1; | |
63 | ||
64 | switch (key) { | |
65 | case KEY_RESIZE: | |
66 | endwin(); | |
67 | init_curses(); | |
68 | update_last_line(); | |
69 | print_lines(first_line, last_line, TRUE); | |
70 | select_line_inside_window(); | |
71 | PRINT_LAST_INFO(); | |
72 | break; | |
73 | case 0x0c: /* Ctrl + l */ | |
74 | clearok(curscr, TRUE); | |
75 | if (!G_NODE_IS_ROOT(NODE(selected_line))) | |
76 | select_file(NODE(selected_line)->parent); | |
77 | update_directory(NODE(selected_line)); | |
78 | break; | |
79 | case 0x1b: /* Escape */ | |
80 | command_repetitions = -1; | |
81 | previous_key = 0; | |
82 | ||
83 | return; | |
84 | case KEY_NPAGE: | |
85 | case 0x06: /* Ctrl + f */ | |
86 | select_line(last_line); | |
87 | scroll_tree(command_repetitions * (getmaxy(tree_window) - 1)); | |
88 | break; | |
89 | case KEY_PPAGE: | |
90 | case 0x02: /* Ctrl + b */ | |
91 | select_line(first_line); | |
92 | scroll_tree(command_repetitions * (-(getmaxy(tree_window) - 1))); | |
93 | break; | |
94 | case 0x04: /* Ctrl + d */ | |
95 | scroll_tree(command_repetitions * getmaxy(tree_window) / 2); | |
96 | select_nth_line(command_repetitions * getmaxy(tree_window) / 2); | |
97 | break; | |
98 | case 0x15: /* Ctrl + u */ | |
99 | scroll_tree(command_repetitions * -getmaxy(tree_window) / 2); | |
100 | select_nth_line(command_repetitions * -getmaxy(tree_window) / 2); | |
101 | break; | |
102 | case 'g': | |
103 | if (previous_key == 'g') | |
104 | select_line(lines); | |
105 | break; | |
106 | case 'G': | |
107 | select_line(g_list_last(lines)); | |
108 | break; | |
109 | case 0x07: /* Ctrl + g */ | |
110 | if ((info = get_file_info(NODE(selected_line))) != NULL) { | |
111 | print_info(info, FALSE); | |
112 | free(info); | |
113 | } | |
114 | break; | |
115 | case 'z': | |
116 | if (previous_key == 'z') | |
117 | scroll_tree(g_list_position(first_line, selected_line) - | |
118 | getmaxy(tree_window) / 2); | |
119 | break; | |
120 | case 'H': | |
121 | select_line(first_line); | |
122 | break; | |
123 | case 'L': | |
124 | select_line(last_line); | |
125 | break; | |
126 | case KEY_DOWN: | |
127 | case 'j': | |
128 | select_nth_line(command_repetitions); | |
129 | break; | |
130 | case KEY_UP: | |
131 | case 'k': | |
132 | select_nth_line(-command_repetitions); | |
133 | break; | |
134 | case KEY_RIGHT: | |
135 | case 'l': | |
136 | if (FILE(NODE(selected_line))->type == directory_type && | |
137 | FILE(NODE(selected_line))->open == FALSE) | |
138 | open_directory(NODE(selected_line)); | |
139 | else if (FILE(NODE(selected_line))->type == directory_type && | |
140 | FILE(NODE(selected_line))->open == TRUE && | |
141 | FILE(NODE(selected_line))->show_dotfiles == FALSE) | |
142 | show_dotfiles(NODE(selected_line)); | |
143 | else if (FILE(NODE(selected_line))->type == file_type) | |
144 | read_file(NODE(selected_line)); | |
145 | break; | |
146 | case KEY_LEFT: | |
147 | case 'h': | |
148 | close_parent: if (FILE(NODE(selected_line))->type == directory_type && | |
149 | FILE(NODE(selected_line))->open == TRUE && | |
150 | FILE(NODE(selected_line))->show_dotfiles == TRUE && | |
151 | !G_NODE_IS_LEAF(NODE(selected_line)) && | |
152 | FILE(g_node_first_child(NODE(selected_line)))->name[0] == '.') | |
153 | hide_dotfiles(NODE(selected_line)); | |
154 | else if (FILE(NODE(selected_line))->type == directory_type && | |
155 | FILE(NODE(selected_line))->open == TRUE && | |
156 | !G_NODE_IS_LEAF(NODE(selected_line))) | |
157 | close_directory(NODE(selected_line)); | |
158 | else if (!G_NODE_IS_ROOT(NODE(selected_line))) { | |
159 | select_file(NODE(selected_line)->parent); | |
160 | goto close_parent; | |
161 | } | |
162 | break; | |
163 | case 'q': | |
164 | endwin(); | |
165 | clean_up(); | |
166 | exit(EXIT_SUCCESS); | |
167 | break; | |
168 | case '{': | |
169 | if (g_node_prev_sibling(NODE(selected_line)) != NULL) | |
170 | select_file(g_node_prev_sibling(NODE(selected_line))); | |
171 | else | |
172 | select_nth_line(-1); | |
173 | break; | |
174 | case '}': | |
175 | if (g_node_next_sibling(NODE(selected_line)) != NULL) | |
176 | select_file(g_node_next_sibling(NODE(selected_line))); | |
177 | else | |
178 | select_nth_line(1); | |
179 | break; | |
180 | case '[': | |
181 | if (previous_key == '[' && !G_NODE_IS_ROOT(NODE(selected_line))) | |
182 | select_file(NODE(selected_line)->parent); | |
183 | break; | |
184 | case 's': | |
185 | if (!G_NODE_IS_ROOT(NODE(selected_line))) | |
186 | run_shell(NODE(selected_line)->parent); | |
187 | else | |
188 | run_shell(NODE(selected_line)); | |
189 | break; | |
190 | case KEY_ENTER: | |
191 | case 0x0d: /* Enter */ | |
192 | if (FILE(NODE(selected_line))->type == file_type) | |
193 | edit_file(NODE(selected_line)); | |
194 | break; | |
195 | } | |
196 | if (key != KEY_RESIZE) { | |
197 | command_repetitions = -1; | |
198 | previous_key = key; | |
199 | } | |
200 | } | |
201 | ||
202 | void run_program(GNode *current_directory, char *program_name_variable, | |
203 | char *default_program_name, char *arg, gboolean wait_proccess) | |
204 | { | |
205 | char *path, *pwd, *program_name; | |
206 | pid_t child; | |
207 | int status; | |
208 | ||
209 | endwin(); | |
210 | if ((child = fork()) != 0 && wait_proccess) { | |
211 | unset_sighandlers(); | |
212 | waitpid(child, &status, 0); | |
213 | set_sighandlers(); | |
214 | } else if (child == 0) { | |
215 | path = get_path(current_directory); | |
216 | if (chdir(path) == -1) | |
217 | exit(EXIT_FAILURE); | |
218 | pwd = g_strconcat("PWD=", path, NULL); | |
219 | putenv(pwd); | |
220 | free(path); | |
221 | ||
222 | if (!wait_proccess) { | |
223 | close(0); | |
224 | close(1); | |
225 | close(2); | |
226 | } | |
227 | ||
228 | if (program_name_variable != NULL && | |
229 | (program_name = getenv(program_name_variable)) != NULL) { | |
230 | if (execlp(program_name, program_name, arg, NULL) == -1) | |
231 | exit(EXIT_FAILURE); | |
232 | } else { | |
233 | if (execlp(default_program_name, default_program_name, arg, NULL) == -1) | |
234 | exit(EXIT_FAILURE); | |
235 | } | |
236 | } | |
237 | init_curses(); | |
238 | update_last_line(); | |
239 | print_lines(first_line, last_line, TRUE); | |
240 | select_line_inside_window(); | |
241 | ||
242 | if (wait_proccess && WIFEXITED(status) && WEXITSTATUS(status) != EXIT_SUCCESS) | |
243 | PRINT_ERROR_INFO("Something failed when running the external program"); | |
244 | } | |
245 | ||
246 | void run_shell(GNode *directory) | |
247 | { | |
248 | run_program(directory, "SHELL", DEFAULT_SHELL, NULL, TRUE); | |
249 | } | |
250 | ||
251 | void read_file(GNode *file) | |
252 | { | |
253 | if (g_str_has_suffix(FILE(file)->name, ".pdf") || | |
254 | g_str_has_suffix(FILE(file)->name, ".pdf.gz") || | |
255 | g_str_has_suffix(FILE(file)->name, ".pdf.Z")) | |
256 | run_program(file->parent, NULL, DEFAULT_PDF_VIEWER, FILE(file)->name, FALSE); | |
257 | else if (g_str_has_suffix(FILE(file)->name, ".ps") || | |
258 | g_str_has_suffix(FILE(file)->name, ".ps.gz") || | |
259 | g_str_has_suffix(FILE(file)->name, ".ps.Z")) | |
260 | run_program(file->parent, NULL, DEFAULT_PS_VIEWER, FILE(file)->name, FALSE); | |
261 | else if (g_str_has_suffix(FILE(file)->name, ".jpg") || | |
262 | g_str_has_suffix(FILE(file)->name, ".jpeg") || | |
263 | g_str_has_suffix(FILE(file)->name, ".png") || | |
264 | g_str_has_suffix(FILE(file)->name, ".gif")) | |
265 | run_program(file->parent, NULL, DEFAULT_IMAGE_VIEWER, FILE(file)->name, FALSE); | |
266 | else | |
267 | run_program(file->parent, "PAGER", DEFAULT_PAGER, FILE(file)->name, TRUE); | |
268 | } | |
269 | ||
270 | void edit_file(GNode *file) | |
271 | { | |
272 | run_program(file->parent, "EDITOR", DEFAULT_EDITOR, FILE(file)->name, TRUE); | |
273 | } |