1 /**
2 * @file lv_file_explorer.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9 #include "lv_file_explorer_private.h"
10 #include "../../misc/lv_fs_private.h"
11 #include "../../core/lv_obj_class_private.h"
12 #if LV_USE_FILE_EXPLORER != 0
13
14 #include "../../lvgl.h"
15 #include "../../core/lv_global.h"
16
17 /*********************
18 * DEFINES
19 *********************/
20 #define MY_CLASS (&lv_file_explorer_class)
21
22 #define FILE_EXPLORER_QUICK_ACCESS_AREA_WIDTH (22)
23 #define FILE_EXPLORER_BROWSER_AREA_WIDTH (100 - FILE_EXPLORER_QUICK_ACCESS_AREA_WIDTH)
24
25 #define quick_access_list_button_style (LV_GLOBAL_DEFAULT()->fe_list_button_style)
26
27 #define LV_FILE_NAVIGATION_CURRENT_DIR "."
28 #define LV_FILE_NAVIGATION_PARENT_DIR "Back"
29
30 /**********************
31 * TYPEDEFS
32 **********************/
33
34 /**********************
35 * STATIC PROTOTYPES
36 **********************/
37 static void lv_file_explorer_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
38 static void init_style(lv_obj_t * obj);
39
40 #if LV_FILE_EXPLORER_QUICK_ACCESS
41 static void quick_access_event_handler(lv_event_t * e);
42 static void quick_access_area_event_handler(lv_event_t * e);
43 #endif
44
45 static void browser_file_event_handler(lv_event_t * e);
46 static void show_dir(lv_obj_t * obj, const char * path);
47 static void strip_ext(char * dir);
48 static void exch_table_item(lv_obj_t * tb, int16_t i, int16_t j);
49 static void file_explorer_sort(lv_obj_t * obj);
50 static void sort_by_file_kind(lv_obj_t * tb, int16_t lo, int16_t hi);
51 static bool is_end_with(const char * str1, const char * str2);
52
53 /**********************
54 * STATIC VARIABLES
55 **********************/
56
57 const lv_obj_class_t lv_file_explorer_class = {
58 .constructor_cb = lv_file_explorer_constructor,
59 .width_def = LV_SIZE_CONTENT,
60 .height_def = LV_SIZE_CONTENT,
61 .instance_size = sizeof(lv_file_explorer_t),
62 .base_class = &lv_obj_class,
63 .name = "file-explorer",
64 };
65
66 /**********************
67 * MACROS
68 **********************/
69
70 /**********************
71 * GLOBAL FUNCTIONS
72 **********************/
73
lv_file_explorer_create(lv_obj_t * parent)74 lv_obj_t * lv_file_explorer_create(lv_obj_t * parent)
75 {
76 LV_LOG_INFO("begin");
77 lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent);
78 lv_obj_class_init_obj(obj);
79 return obj;
80 }
81
82 /*=====================
83 * Setter functions
84 *====================*/
85 #if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(lv_obj_t * obj,lv_file_explorer_dir_t dir,const char * path)86 void lv_file_explorer_set_quick_access_path(lv_obj_t * obj, lv_file_explorer_dir_t dir, const char * path)
87 {
88 LV_ASSERT_OBJ(obj, MY_CLASS);
89
90 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
91
92 /*If path is unavailable */
93 if((path == NULL) || (lv_strlen(path) <= 0)) return;
94
95 char ** dir_str = NULL;
96 switch(dir) {
97 case LV_EXPLORER_HOME_DIR:
98 dir_str = &(explorer->home_dir);
99 break;
100 case LV_EXPLORER_MUSIC_DIR:
101 dir_str = &(explorer->music_dir);
102 break;
103 case LV_EXPLORER_PICTURES_DIR:
104 dir_str = &(explorer->pictures_dir);
105 break;
106 case LV_EXPLORER_VIDEO_DIR:
107 dir_str = &(explorer->video_dir);
108 break;
109 case LV_EXPLORER_DOCS_DIR:
110 dir_str = &(explorer->docs_dir);
111 break;
112 case LV_EXPLORER_FS_DIR:
113 dir_str = &(explorer->fs_dir);
114 break;
115
116 default:
117 return;
118 break;
119 }
120
121 /*Free the old text*/
122 if(*dir_str != NULL) {
123 lv_free(*dir_str);
124 *dir_str = NULL;
125 }
126
127 /*Allocate space for the new text*/
128 *dir_str = lv_strdup(path);
129 }
130
131 #endif
132
lv_file_explorer_set_sort(lv_obj_t * obj,lv_file_explorer_sort_t sort)133 void lv_file_explorer_set_sort(lv_obj_t * obj, lv_file_explorer_sort_t sort)
134 {
135 LV_ASSERT_OBJ(obj, MY_CLASS);
136
137 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
138
139 explorer->sort = sort;
140
141 file_explorer_sort(obj);
142 }
143
144 /*=====================
145 * Getter functions
146 *====================*/
lv_file_explorer_get_selected_file_name(const lv_obj_t * obj)147 const char * lv_file_explorer_get_selected_file_name(const lv_obj_t * obj)
148 {
149 LV_ASSERT_OBJ(obj, MY_CLASS);
150
151 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
152
153 return explorer->sel_fn;
154 }
155
lv_file_explorer_get_current_path(const lv_obj_t * obj)156 const char * lv_file_explorer_get_current_path(const lv_obj_t * obj)
157 {
158 LV_ASSERT_OBJ(obj, MY_CLASS);
159
160 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
161
162 return explorer->current_path;
163 }
164
lv_file_explorer_get_file_table(lv_obj_t * obj)165 lv_obj_t * lv_file_explorer_get_file_table(lv_obj_t * obj)
166 {
167 LV_ASSERT_OBJ(obj, MY_CLASS);
168
169 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
170
171 return explorer->file_table;
172 }
173
lv_file_explorer_get_header(lv_obj_t * obj)174 lv_obj_t * lv_file_explorer_get_header(lv_obj_t * obj)
175 {
176 LV_ASSERT_OBJ(obj, MY_CLASS);
177
178 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
179
180 return explorer->head_area;
181 }
182
lv_file_explorer_get_path_label(lv_obj_t * obj)183 lv_obj_t * lv_file_explorer_get_path_label(lv_obj_t * obj)
184 {
185 LV_ASSERT_OBJ(obj, MY_CLASS);
186
187 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
188
189 return explorer->path_label;
190 }
191
192 #if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_get_quick_access_area(lv_obj_t * obj)193 lv_obj_t * lv_file_explorer_get_quick_access_area(lv_obj_t * obj)
194 {
195 LV_ASSERT_OBJ(obj, MY_CLASS);
196
197 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
198
199 return explorer->quick_access_area;
200 }
201
lv_file_explorer_get_places_list(lv_obj_t * obj)202 lv_obj_t * lv_file_explorer_get_places_list(lv_obj_t * obj)
203 {
204 LV_ASSERT_OBJ(obj, MY_CLASS);
205
206 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
207
208 return explorer->list_places;
209 }
210
lv_file_explorer_get_device_list(lv_obj_t * obj)211 lv_obj_t * lv_file_explorer_get_device_list(lv_obj_t * obj)
212 {
213 LV_ASSERT_OBJ(obj, MY_CLASS);
214
215 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
216
217 return explorer->list_device;
218 }
219
220 #endif
221
lv_file_explorer_get_sort(const lv_obj_t * obj)222 lv_file_explorer_sort_t lv_file_explorer_get_sort(const lv_obj_t * obj)
223 {
224 LV_ASSERT_OBJ(obj, MY_CLASS);
225
226 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
227
228 return explorer->sort;
229 }
230
231 /*=====================
232 * Other functions
233 *====================*/
lv_file_explorer_open_dir(lv_obj_t * obj,const char * dir)234 void lv_file_explorer_open_dir(lv_obj_t * obj, const char * dir)
235 {
236 LV_ASSERT_OBJ(obj, MY_CLASS);
237
238 show_dir(obj, dir);
239 }
240
241 /**********************
242 * STATIC FUNCTIONS
243 **********************/
lv_file_explorer_constructor(const lv_obj_class_t * class_p,lv_obj_t * obj)244 static void lv_file_explorer_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
245 {
246 LV_UNUSED(class_p);
247 LV_TRACE_OBJ_CREATE("begin");
248
249 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
250
251 #if LV_FILE_EXPLORER_QUICK_ACCESS
252 explorer->home_dir = NULL;
253 explorer->video_dir = NULL;
254 explorer->pictures_dir = NULL;
255 explorer->music_dir = NULL;
256 explorer->docs_dir = NULL;
257 explorer->fs_dir = NULL;
258 #endif
259
260 explorer->sort = LV_EXPLORER_SORT_NONE;
261
262 lv_memzero(explorer->current_path, sizeof(explorer->current_path));
263
264 lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
265 lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_COLUMN);
266
267 explorer->cont = lv_obj_create(obj);
268 lv_obj_set_width(explorer->cont, LV_PCT(100));
269 lv_obj_set_flex_grow(explorer->cont, 1);
270
271 #if LV_FILE_EXPLORER_QUICK_ACCESS
272 /*Quick access bar area on the left*/
273 explorer->quick_access_area = lv_obj_create(explorer->cont);
274 lv_obj_set_size(explorer->quick_access_area, LV_PCT(FILE_EXPLORER_QUICK_ACCESS_AREA_WIDTH), LV_PCT(100));
275 lv_obj_set_flex_flow(explorer->quick_access_area, LV_FLEX_FLOW_COLUMN);
276 lv_obj_add_event_cb(explorer->quick_access_area, quick_access_area_event_handler, LV_EVENT_ALL,
277 explorer);
278 #endif
279
280 /*File table area on the right*/
281 explorer->browser_area = lv_obj_create(explorer->cont);
282 #if LV_FILE_EXPLORER_QUICK_ACCESS
283 lv_obj_set_size(explorer->browser_area, LV_PCT(FILE_EXPLORER_BROWSER_AREA_WIDTH), LV_PCT(100));
284 #else
285 lv_obj_set_size(explorer->browser_area, LV_PCT(100), LV_PCT(100));
286 #endif
287 lv_obj_set_flex_flow(explorer->browser_area, LV_FLEX_FLOW_COLUMN);
288
289 /*The area displayed above the file browse list(head)*/
290 explorer->head_area = lv_obj_create(explorer->browser_area);
291 lv_obj_set_size(explorer->head_area, LV_PCT(100), LV_PCT(14));
292 lv_obj_remove_flag(explorer->head_area, LV_OBJ_FLAG_SCROLLABLE);
293
294 #if LV_FILE_EXPLORER_QUICK_ACCESS
295 /*Two lists of quick access bar*/
296 lv_obj_t * btn;
297 /*list 1*/
298 explorer->list_device = lv_list_create(explorer->quick_access_area);
299 lv_obj_set_size(explorer->list_device, LV_PCT(100), LV_SIZE_CONTENT);
300 lv_obj_set_style_bg_color(lv_list_add_text(explorer->list_device, "DEVICE"), lv_palette_main(LV_PALETTE_ORANGE), 0);
301
302 btn = lv_list_add_button(explorer->list_device, NULL, LV_SYMBOL_DRIVE " File System");
303 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
304
305 /*list 2*/
306 explorer->list_places = lv_list_create(explorer->quick_access_area);
307 lv_obj_set_size(explorer->list_places, LV_PCT(100), LV_SIZE_CONTENT);
308 lv_obj_set_style_bg_color(lv_list_add_text(explorer->list_places, "PLACES"), lv_palette_main(LV_PALETTE_LIME), 0);
309
310 btn = lv_list_add_button(explorer->list_places, NULL, LV_SYMBOL_HOME " HOME");
311 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
312 btn = lv_list_add_button(explorer->list_places, NULL, LV_SYMBOL_VIDEO " Video");
313 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
314 btn = lv_list_add_button(explorer->list_places, NULL, LV_SYMBOL_IMAGE " Pictures");
315 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
316 btn = lv_list_add_button(explorer->list_places, NULL, LV_SYMBOL_AUDIO " Music");
317 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
318 btn = lv_list_add_button(explorer->list_places, NULL, LV_SYMBOL_FILE " Documents");
319 lv_obj_add_event_cb(btn, quick_access_event_handler, LV_EVENT_CLICKED, obj);
320 #endif
321
322 /*Show current path*/
323 explorer->path_label = lv_label_create(explorer->head_area);
324 lv_label_set_text(explorer->path_label, LV_SYMBOL_EYE_OPEN"https://lvgl.io");
325 lv_obj_center(explorer->path_label);
326
327 /*Table showing the contents of the table of contents*/
328 explorer->file_table = lv_table_create(explorer->browser_area);
329 lv_obj_set_size(explorer->file_table, LV_PCT(100), LV_PCT(86));
330 lv_table_set_column_width(explorer->file_table, 0, LV_PCT(100));
331 lv_table_set_column_count(explorer->file_table, 1);
332 lv_obj_add_event_cb(explorer->file_table, browser_file_event_handler, LV_EVENT_ALL, obj);
333
334 /*only scroll up and down*/
335 lv_obj_set_scroll_dir(explorer->file_table, LV_DIR_TOP | LV_DIR_BOTTOM);
336
337 /*Initialize style*/
338 init_style(obj);
339
340 LV_TRACE_OBJ_CREATE("finished");
341 }
342
init_style(lv_obj_t * obj)343 static void init_style(lv_obj_t * obj)
344 {
345 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
346
347 /*lv_file_explorer obj style*/
348 lv_obj_set_style_radius(obj, 0, 0);
349 lv_obj_set_style_bg_color(obj, lv_color_hex(0xf2f1f6), 0);
350
351 /*main container style*/
352 lv_obj_set_style_radius(explorer->cont, 0, 0);
353 lv_obj_set_style_bg_opa(explorer->cont, LV_OPA_0, 0);
354 lv_obj_set_style_border_width(explorer->cont, 0, 0);
355 lv_obj_set_style_outline_width(explorer->cont, 0, 0);
356 lv_obj_set_style_pad_column(explorer->cont, 0, 0);
357 lv_obj_set_style_pad_row(explorer->cont, 0, 0);
358 lv_obj_set_style_flex_flow(explorer->cont, LV_FLEX_FLOW_ROW, 0);
359 lv_obj_set_style_pad_all(explorer->cont, 0, 0);
360 lv_obj_set_style_layout(explorer->cont, LV_LAYOUT_FLEX, 0);
361
362 /*head cont style*/
363 lv_obj_set_style_radius(explorer->head_area, 0, 0);
364 lv_obj_set_style_border_width(explorer->head_area, 0, 0);
365 lv_obj_set_style_pad_top(explorer->head_area, 0, 0);
366
367 #if LV_FILE_EXPLORER_QUICK_ACCESS
368 /*Quick access bar container style*/
369 lv_obj_set_style_pad_all(explorer->quick_access_area, 0, 0);
370 lv_obj_set_style_pad_row(explorer->quick_access_area, 20, 0);
371 lv_obj_set_style_radius(explorer->quick_access_area, 0, 0);
372 lv_obj_set_style_border_width(explorer->quick_access_area, 1, 0);
373 lv_obj_set_style_outline_width(explorer->quick_access_area, 0, 0);
374 lv_obj_set_style_bg_color(explorer->quick_access_area, lv_color_hex(0xf2f1f6), 0);
375 #endif
376
377 /*File browser container style*/
378 lv_obj_set_style_pad_all(explorer->browser_area, 0, 0);
379 lv_obj_set_style_pad_row(explorer->browser_area, 0, 0);
380 lv_obj_set_style_radius(explorer->browser_area, 0, 0);
381 lv_obj_set_style_border_width(explorer->browser_area, 0, 0);
382 lv_obj_set_style_outline_width(explorer->browser_area, 0, 0);
383 lv_obj_set_style_bg_color(explorer->browser_area, lv_color_hex(0xffffff), 0);
384
385 /*Style of the table in the browser container*/
386 lv_obj_set_style_bg_color(explorer->file_table, lv_color_hex(0xffffff), 0);
387 lv_obj_set_style_pad_all(explorer->file_table, 0, 0);
388 lv_obj_set_style_radius(explorer->file_table, 0, 0);
389 lv_obj_set_style_border_width(explorer->file_table, 0, 0);
390 lv_obj_set_style_outline_width(explorer->file_table, 0, 0);
391
392 #if LV_FILE_EXPLORER_QUICK_ACCESS
393 /*Style of the list in the quick access bar*/
394 lv_obj_set_style_border_width(explorer->list_device, 0, 0);
395 lv_obj_set_style_outline_width(explorer->list_device, 0, 0);
396 lv_obj_set_style_radius(explorer->list_device, 0, 0);
397 lv_obj_set_style_pad_all(explorer->list_device, 0, 0);
398
399 lv_obj_set_style_border_width(explorer->list_places, 0, 0);
400 lv_obj_set_style_outline_width(explorer->list_places, 0, 0);
401 lv_obj_set_style_radius(explorer->list_places, 0, 0);
402 lv_obj_set_style_pad_all(explorer->list_places, 0, 0);
403
404 /*Style of the quick access list btn in the quick access bar*/
405 lv_style_init(&quick_access_list_button_style);
406 lv_style_set_border_width(&quick_access_list_button_style, 0);
407 lv_style_set_bg_color(&quick_access_list_button_style, lv_color_hex(0xf2f1f6));
408
409 uint32_t ch_cnt = lv_obj_get_child_count(explorer->quick_access_area);
410
411 for(uint32_t i = 0; i < ch_cnt; i++) {
412 lv_obj_t * child = lv_obj_get_child(explorer->quick_access_area, i);
413
414 if(lv_obj_check_type(child, &lv_list_class)) {
415 uint32_t list_ch_cnt = lv_obj_get_child_count(child);
416
417 for(uint32_t j = 0; j < list_ch_cnt; j++) {
418 lv_obj_t * list_child = lv_obj_get_child(child, j);
419 if(lv_obj_check_type(list_child, &lv_list_button_class)) {
420 lv_obj_add_style(list_child, &quick_access_list_button_style, 0);
421 }
422 }
423 }
424 }
425 #endif
426
427 }
428
429 #if LV_FILE_EXPLORER_QUICK_ACCESS
quick_access_event_handler(lv_event_t * e)430 static void quick_access_event_handler(lv_event_t * e)
431 {
432 lv_event_code_t code = lv_event_get_code(e);
433 lv_obj_t * btn = lv_event_get_current_target(e);
434 lv_obj_t * obj = lv_event_get_user_data(e);
435
436 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
437
438 if(code == LV_EVENT_CLICKED) {
439 char ** path = NULL;
440 lv_obj_t * label = lv_obj_get_child(btn, -1);
441 char * label_text = lv_label_get_text(label);
442
443 if((lv_strcmp(label_text, LV_SYMBOL_HOME " HOME") == 0)) {
444 path = &(explorer->home_dir);
445 }
446 else if((lv_strcmp(label_text, LV_SYMBOL_VIDEO " Video") == 0)) {
447 path = &(explorer->video_dir);
448 }
449 else if((lv_strcmp(label_text, LV_SYMBOL_IMAGE " Pictures") == 0)) {
450 path = &(explorer->pictures_dir);
451 }
452 else if((lv_strcmp(label_text, LV_SYMBOL_AUDIO " Music") == 0)) {
453 path = &(explorer->music_dir);
454 }
455 else if((lv_strcmp(label_text, LV_SYMBOL_FILE " Documents") == 0)) {
456 path = &(explorer->docs_dir);
457 }
458 else if((lv_strcmp(label_text, LV_SYMBOL_DRIVE " File System") == 0)) {
459 path = &(explorer->fs_dir);
460 }
461
462 if(path != NULL)
463 show_dir(obj, *path);
464 }
465 }
466
quick_access_area_event_handler(lv_event_t * e)467 static void quick_access_area_event_handler(lv_event_t * e)
468 {
469 lv_event_code_t code = lv_event_get_code(e);
470 lv_obj_t * area = lv_event_get_current_target(e);
471 lv_obj_t * obj = lv_event_get_user_data(e);
472
473 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
474
475 if(code == LV_EVENT_LAYOUT_CHANGED) {
476 if(lv_obj_has_flag(area, LV_OBJ_FLAG_HIDDEN))
477 lv_obj_set_size(explorer->browser_area, LV_PCT(100), LV_PCT(100));
478 else
479 lv_obj_set_size(explorer->browser_area, LV_PCT(FILE_EXPLORER_BROWSER_AREA_WIDTH), LV_PCT(100));
480 }
481 }
482 #endif
483
browser_file_event_handler(lv_event_t * e)484 static void browser_file_event_handler(lv_event_t * e)
485 {
486 lv_event_code_t code = lv_event_get_code(e);
487 lv_obj_t * obj = lv_event_get_user_data(e);
488
489 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
490
491 if(code == LV_EVENT_VALUE_CHANGED) {
492 char file_name[LV_FILE_EXPLORER_PATH_MAX_LEN];
493 const char * selected_text = NULL;
494 uint32_t row;
495 uint32_t col;
496 uint8_t navigate_to_parent_dir = 0;
497 uint8_t navigate_to_child = 0;
498
499 lv_memzero(file_name, sizeof(file_name));
500 lv_table_get_selected_cell(explorer->file_table, &row, &col);
501 selected_text = lv_table_get_cell_value(explorer->file_table, row, col);
502
503 selected_text = selected_text + 5; /* skip table cell format */
504
505 /* Three navigation modes are supported:
506 * - Navigate to current directory
507 * - Navigate to parent directory
508 * - Navigate to (current directory) child */
509 navigate_to_parent_dir = (lv_strcmp(selected_text, LV_FILE_NAVIGATION_PARENT_DIR) == 0);
510 navigate_to_child = !navigate_to_parent_dir;
511
512
513 if((navigate_to_parent_dir) && (lv_strlen(explorer->current_path) > 3)) {
514 strip_ext(explorer->current_path);
515 /*Remove the last '/' character*/
516 strip_ext(explorer->current_path);
517 lv_snprintf((char *)file_name, sizeof(file_name), "%s/", explorer->current_path); /* Append / at the end */
518 }
519 else {
520 if(navigate_to_child) {
521 lv_snprintf((char *)file_name, sizeof(file_name), "%s%s", explorer->current_path, selected_text);
522 }
523 else if(navigate_to_parent_dir) { /* We are most likely in the drive letter directory, doesn't have parent directory */
524 return;
525 }
526 else { /* Nothing to do*/ }
527 }
528
529 lv_fs_dir_t dir;
530 if(lv_fs_dir_open(&dir, file_name) == LV_FS_RES_OK) {
531 lv_fs_dir_close(&dir);
532 show_dir(obj, (char *)file_name);
533 }
534 else {
535 if(navigate_to_child) {
536 explorer->sel_fn = selected_text;
537 lv_obj_send_event(obj, LV_EVENT_VALUE_CHANGED, NULL);
538 }
539 }
540 }
541 else if(code == LV_EVENT_SIZE_CHANGED) {
542 lv_table_set_column_width(explorer->file_table, 0, lv_obj_get_width(explorer->file_table));
543 }
544 else if((code == LV_EVENT_CLICKED) || (code == LV_EVENT_RELEASED)) {
545 lv_obj_send_event(obj, LV_EVENT_CLICKED, NULL);
546 }
547 }
548
show_dir(lv_obj_t * obj,const char * path)549 static void show_dir(lv_obj_t * obj, const char * path)
550 {
551 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
552
553 char fn[LV_FILE_EXPLORER_PATH_MAX_LEN];
554 uint16_t index = 0;
555 lv_fs_dir_t dir;
556 lv_fs_res_t res;
557
558 res = lv_fs_dir_open(&dir, path);
559 if(res != LV_FS_RES_OK) {
560 LV_LOG_USER("Open dir error %d!", res);
561 return;
562 }
563
564 lv_table_set_cell_value(explorer->file_table, index++, 0, LV_SYMBOL_LEFT " " LV_FILE_NAVIGATION_PARENT_DIR);
565 lv_table_set_cell_value(explorer->file_table, 0, 1, "0");
566 lv_table_set_cell_value(explorer->file_table, 1, 1, "0");
567
568 while(1) {
569 res = lv_fs_dir_read(&dir, fn, sizeof(fn));
570 if(res != LV_FS_RES_OK) {
571 LV_LOG_USER("Driver, file or directory does not exist %d!", res);
572 break;
573 }
574
575 /*fn is empty, if not more files to read*/
576 if(lv_strlen(fn) == 0) {
577 LV_LOG_USER("No more files to read!");
578 break;
579 }
580
581 if((is_end_with(fn, ".png") == true) || (is_end_with(fn, ".PNG") == true) || \
582 (is_end_with(fn, ".jpg") == true) || (is_end_with(fn, ".JPG") == true) || \
583 (is_end_with(fn, ".bmp") == true) || (is_end_with(fn, ".BMP") == true) || \
584 (is_end_with(fn, ".gif") == true) || (is_end_with(fn, ".GIF") == true)) {
585 lv_table_set_cell_value_fmt(explorer->file_table, index, 0, LV_SYMBOL_IMAGE " %s", fn);
586 lv_table_set_cell_value(explorer->file_table, index, 1, "1");
587 }
588 else if((is_end_with(fn, ".mp3") == true) || (is_end_with(fn, ".MP3") == true) || \
589 (is_end_with(fn, ".wav") == true) || (is_end_with(fn, ".WAV") == true)) {
590 lv_table_set_cell_value_fmt(explorer->file_table, index, 0, LV_SYMBOL_AUDIO " %s", fn);
591 lv_table_set_cell_value(explorer->file_table, index, 1, "2");
592 }
593 else if((is_end_with(fn, ".mp4") == true) || (is_end_with(fn, ".MP4") == true)) {
594 lv_table_set_cell_value_fmt(explorer->file_table, index, 0, LV_SYMBOL_VIDEO " %s", fn);
595 lv_table_set_cell_value(explorer->file_table, index, 1, "3");
596 }
597 else if((is_end_with(fn, ".") == true) || (is_end_with(fn, "..") == true)) {
598 /*is dir*/
599 continue;
600 }
601 else if(fn[0] == '/') {/*is dir*/
602 lv_table_set_cell_value_fmt(explorer->file_table, index, 0, LV_SYMBOL_DIRECTORY " %s", fn + 1);
603 lv_table_set_cell_value(explorer->file_table, index, 1, "0");
604 }
605 else {
606 lv_table_set_cell_value_fmt(explorer->file_table, index, 0, LV_SYMBOL_FILE " %s", fn);
607 lv_table_set_cell_value(explorer->file_table, index, 1, "4");
608 }
609
610 index++;
611 }
612
613 lv_fs_dir_close(&dir);
614
615 lv_table_set_row_count(explorer->file_table, index);
616 file_explorer_sort(obj);
617 lv_obj_send_event(obj, LV_EVENT_READY, NULL);
618
619 /*Move the table to the top*/
620 lv_obj_scroll_to_y(explorer->file_table, 0, LV_ANIM_OFF);
621
622 lv_strncpy(explorer->current_path, path, sizeof(explorer->current_path));
623 lv_label_set_text_fmt(explorer->path_label, LV_SYMBOL_EYE_OPEN" %s", path);
624
625 size_t current_path_len = lv_strlen(explorer->current_path);
626 if((explorer->current_path[current_path_len - 1] != '/') && (current_path_len < LV_FILE_EXPLORER_PATH_MAX_LEN)) {
627 *((explorer->current_path) + current_path_len) = '/';
628 }
629 }
630
631 /*Remove the specified suffix*/
strip_ext(char * dir)632 static void strip_ext(char * dir)
633 {
634 char * end = dir + lv_strlen(dir);
635
636 while(end >= dir && *end != '/') {
637 --end;
638 }
639
640 if(end > dir) {
641 *end = '\0';
642 }
643 else if(end == dir) {
644 *(end + 1) = '\0';
645 }
646 }
647
exch_table_item(lv_obj_t * tb,int16_t i,int16_t j)648 static void exch_table_item(lv_obj_t * tb, int16_t i, int16_t j)
649 {
650 if(i == j) return;
651
652 const char * tmp;
653 tmp = lv_table_get_cell_value(tb, i, 0);
654 lv_table_set_cell_value(tb, 0, 2, tmp);
655 lv_table_set_cell_value(tb, i, 0, lv_table_get_cell_value(tb, j, 0));
656 lv_table_set_cell_value(tb, j, 0, lv_table_get_cell_value(tb, 0, 2));
657
658 tmp = lv_table_get_cell_value(tb, i, 1);
659 lv_table_set_cell_value(tb, 0, 2, tmp);
660 lv_table_set_cell_value(tb, i, 1, lv_table_get_cell_value(tb, j, 1));
661 lv_table_set_cell_value(tb, j, 1, lv_table_get_cell_value(tb, 0, 2));
662 }
663
file_explorer_sort(lv_obj_t * obj)664 static void file_explorer_sort(lv_obj_t * obj)
665 {
666 LV_ASSERT_OBJ(obj, MY_CLASS);
667
668 lv_file_explorer_t * explorer = (lv_file_explorer_t *)obj;
669
670 uint16_t sum = lv_table_get_row_count(explorer->file_table);
671
672 if(sum > 1) {
673 switch(explorer->sort) {
674 case LV_EXPLORER_SORT_NONE:
675 break;
676 case LV_EXPLORER_SORT_KIND:
677 sort_by_file_kind(explorer->file_table, 0, (sum - 1));
678 break;
679 default:
680 break;
681 }
682 }
683 }
684
685 /*Quick sort 3 way*/
sort_by_file_kind(lv_obj_t * tb,int16_t lo,int16_t hi)686 static void sort_by_file_kind(lv_obj_t * tb, int16_t lo, int16_t hi)
687 {
688 if(lo >= hi) return;
689
690 int16_t lt = lo;
691 int16_t i = lo + 1;
692 int16_t gt = hi;
693 const char * v = lv_table_get_cell_value(tb, lo, 1);
694 while(i <= gt) {
695 int strcmp_result = lv_strcmp(lv_table_get_cell_value(tb, i, 1), v);
696 if(strcmp_result < 0)
697 exch_table_item(tb, lt++, i++);
698 else if(strcmp_result > 0)
699 exch_table_item(tb, i, gt--);
700 else
701 i++;
702 }
703
704 sort_by_file_kind(tb, lo, lt - 1);
705 sort_by_file_kind(tb, gt + 1, hi);
706 }
707
is_end_with(const char * str1,const char * str2)708 static bool is_end_with(const char * str1, const char * str2)
709 {
710 if(str1 == NULL || str2 == NULL)
711 return false;
712
713 size_t len1 = lv_strlen(str1);
714 size_t len2 = lv_strlen(str2);
715 if((len1 < len2) || (len1 == 0 || len2 == 0))
716 return false;
717
718 while(len2 >= 1) {
719 if(str2[len2 - 1] != str1[len1 - 1])
720 return false;
721
722 len2--;
723 len1--;
724 }
725
726 return true;
727 }
728
729 #endif /*LV_USE_FILE_EXPLORER*/
730
