1 #include <Elementary.h>
5 * @defgroup Thumb Thumb
7 * A thumb object is used for displaying the thumbnail of an image or video.
8 * You must have compiled Elementary with Ethumb_Client support and the DBus
9 * service must be present and auto-activated in order to have thumbnails to
12 * Signals that you can add callbacks for are:
14 * "clicked" - This is called when a user has clicked the thumb without dragging
16 * "clicked,double" - This is called when a user has double-clicked the thumb.
17 * "press" - This is called when a user has pressed down the thumb.
18 * "generate,start" - The thumbnail generation started.
19 * "generate,stop" - The generation process stopped.
20 * "generate,error" - The generation failed.
21 * "load,error" - The thumbnail image loading failed.
24 typedef struct _Widget_Data Widget_Data;
39 Ecore_Event_Handler *eeh;
40 Elm_Thumb_Animation_Setting anim_setting;
41 Eina_Bool on_hold : 1;
42 Eina_Bool is_video : 1;
43 Eina_Bool was_video : 1;
47 static const char *widtype = NULL;
49 #define SIG_CLICKED "clicked"
50 #define SIG_CLICKED_DOUBLE "clicked,double"
51 #define SIG_GENERATE_ERROR "generate,error"
52 #define SIG_GENERATE_START "generate,start"
53 #define SIG_GENERATE_STOP "generate,stop"
54 #define SIG_LOAD_ERROR "load,error"
55 #define SIG_PRESS "press"
57 static const Evas_Smart_Cb_Description _signals[] =
60 {SIG_CLICKED_DOUBLE, ""},
61 {SIG_GENERATE_ERROR, ""},
62 {SIG_GENERATE_START, ""},
63 {SIG_GENERATE_STOP, ""},
69 #define EDJE_SIGNAL_GENERATE_START "elm,thumb,generate,start"
70 #define EDJE_SIGNAL_GENERATE_STOP "elm,thumb,generate,stop"
71 #define EDJE_SIGNAL_GENERATE_ERROR "elm,thumb,generate,error"
72 #define EDJE_SIGNAL_LOAD_ERROR "elm,thumb,load,error"
73 #define EDJE_SIGNAL_PULSE_START "elm,state,pulse,start"
74 #define EDJE_SIGNAL_PULSE_STOP "elm,state,pulse,stop"
76 struct _Ethumb_Client *_elm_ethumb_client = NULL;
77 Eina_Bool _elm_ethumb_connected = EINA_FALSE;
79 EAPI int ELM_ECORE_EVENT_ETHUMB_CONNECT = 0;
82 _del_hook(Evas_Object *obj)
84 Widget_Data *wd = elm_widget_data_get(obj);
86 #ifdef HAVE_ELEMENTARY_ETHUMB
87 if (wd->thumb.id >= 0)
88 ethumb_client_generate_cancel(_elm_ethumb_client, wd->thumb.id,
92 eina_stringshare_del(wd->file);
93 eina_stringshare_del(wd->key);
94 if (wd->eeh) ecore_event_handler_del(wd->eeh);
99 _theme_hook(Evas_Object *obj)
101 Widget_Data *wd = elm_widget_data_get(obj);
102 _elm_theme_object_set(obj, wd->frame, "thumb", "base",
103 elm_widget_style_get(obj));
106 #ifdef HAVE_ELEMENTARY_ETHUMB
108 _mouse_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
110 Widget_Data *wd = data;
111 Evas_Event_Mouse_Down *ev = event_info;
115 if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
116 wd->on_hold = EINA_TRUE;
118 wd->on_hold = EINA_FALSE;
119 if (ev->flags & EVAS_BUTTON_DOUBLE_CLICK)
120 evas_object_smart_callback_call(wd->self, SIG_CLICKED_DOUBLE, NULL);
122 evas_object_smart_callback_call(wd->self, SIG_PRESS, NULL);
126 _mouse_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
128 Widget_Data *wd = data;
129 Evas_Event_Mouse_Up *ev = event_info;
133 if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
134 wd->on_hold = EINA_TRUE;
136 wd->on_hold = EINA_FALSE;
138 evas_object_smart_callback_call(wd->self, SIG_CLICKED, NULL);
139 wd->on_hold = EINA_FALSE;
143 _finished_thumb(Widget_Data *wd, const char *thumb_path, const char *thumb_key)
145 Eina_Bool new_view = EINA_FALSE;
150 evas = evas_object_evas_get(wd->self);
151 if ((wd->view) && (wd->is_video ^ wd->was_video))
153 evas_object_del(wd->view);
156 wd->was_video = wd->is_video;
158 if ((wd->is_video) &&
159 (ethumb_client_format_get(_elm_ethumb_client) == ETHUMB_THUMB_EET))
163 wd->view = edje_object_add(evas);
166 ERR("could not create edje object");
169 new_view = EINA_TRUE;
172 if (!edje_object_file_set(wd->view, thumb_path, "movie/thumb"))
174 ERR("could not set file=%s key=%s for %s", thumb_path, thumb_key,
183 wd->view = evas_object_image_filled_add(evas);
186 ERR("could not create image object");
189 new_view = EINA_TRUE;
192 evas_object_image_file_set(wd->view, thumb_path, thumb_key);
193 r = evas_object_image_load_error_get(wd->view);
194 if (r != EVAS_LOAD_ERROR_NONE)
196 ERR("%s: %s", thumb_path, evas_load_error_str(r));
201 if (new_view) elm_widget_sub_object_add(wd->self, wd->view);
202 edje_object_part_swallow(wd->frame, "elm.swallow.content", wd->view);
203 edje_object_size_min_get(wd->frame, &mw, &mh);
204 edje_object_size_min_restricted_calc(wd->frame, &mw, &mh, mw, mh);
205 evas_object_size_hint_min_set(wd->self, mw, mh);
206 eina_stringshare_replace(&(wd->thumb.file), thumb_path);
207 eina_stringshare_replace(&(wd->thumb.key), thumb_key);
208 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_STOP, "elm");
209 evas_object_smart_callback_call(wd->self, SIG_GENERATE_STOP, NULL);
213 evas_object_del(wd->view);
216 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_LOAD_ERROR, "elm");
217 evas_object_smart_callback_call(wd->self, SIG_LOAD_ERROR, NULL);
221 _finished_thumb_cb(void *data, Ethumb_Client *c __UNUSED__, int id, const char *file, const char *key, const char *thumb_path, const char *thumb_key, Eina_Bool success)
223 Widget_Data *wd = data;
225 EINA_SAFETY_ON_FALSE_RETURN(wd->thumb.id == id);
228 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_PULSE_STOP, "elm");
232 _finished_thumb(wd, thumb_path, thumb_key);
236 ERR("could not generate thumbnail for %s (key: %s)", file, key ? key : "");
237 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_ERROR, "elm");
238 evas_object_smart_callback_call(wd->self, SIG_GENERATE_ERROR, NULL);
242 _thumb_apply(Widget_Data *wd)
244 if (wd->thumb.id > 0)
246 ethumb_client_generate_cancel
247 (_elm_ethumb_client, wd->thumb.id, NULL, NULL, NULL);
251 if (!wd->file) return;
253 ethumb_client_file_set(_elm_ethumb_client, wd->file, wd->key);
254 if (ethumb_client_thumb_exists(_elm_ethumb_client))
256 const char *thumb_path, *thumb_key;
259 ethumb_client_thumb_path_get(_elm_ethumb_client, &thumb_path,
261 _finished_thumb(wd, thumb_path, thumb_key);
264 else if ((wd->thumb.id = ethumb_client_generate
265 (_elm_ethumb_client, _finished_thumb_cb, wd, NULL)) != -1)
267 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_PULSE_START, "elm");
268 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_START, "elm");
269 evas_object_smart_callback_call(wd->self, SIG_GENERATE_START, NULL);
274 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_ERROR, "elm");
275 evas_object_smart_callback_call(wd->self, SIG_GENERATE_ERROR, NULL);
280 _thumb_apply_cb(void *data, int type __UNUSED__, void *ev __UNUSED__)
283 return ECORE_CALLBACK_RENEW;
287 _thumb_show(Widget_Data *wd)
289 evas_object_show(wd->frame);
291 if (elm_thumb_ethumb_client_connected())
298 wd->eeh = ecore_event_handler_add(ELM_ECORE_EVENT_ETHUMB_CONNECT,
299 _thumb_apply_cb, wd);
303 _thumb_show_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
309 _thumb_hide_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
311 Widget_Data *wd = data;
313 evas_object_hide(wd->frame);
315 if (wd->thumb.id >= 0)
317 ethumb_client_generate_cancel
318 (_elm_ethumb_client, wd->thumb.id, NULL, NULL, NULL);
321 edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_STOP, "elm");
322 evas_object_smart_callback_call(wd->self, SIG_GENERATE_STOP, NULL);
327 ecore_event_handler_del(wd->eeh);
335 static int _elm_need_ethumb = 0;
337 static void _on_die_cb(void *, Ethumb_Client *);
340 _connect_cb(void *data __UNUSED__, Ethumb_Client *c, Eina_Bool success)
344 ethumb_client_on_server_die_callback_set(c, _on_die_cb, NULL, NULL);
345 _elm_ethumb_connected = EINA_TRUE;
346 ecore_event_add(ELM_ECORE_EVENT_ETHUMB_CONNECT, NULL, NULL, NULL);
349 _elm_ethumb_client = NULL;
353 _on_die_cb(void *data __UNUSED__, Ethumb_Client *c __UNUSED__)
355 ethumb_client_disconnect(_elm_ethumb_client);
356 _elm_ethumb_client = NULL;
357 _elm_ethumb_connected = EINA_FALSE;
358 _elm_ethumb_client = ethumb_client_connect(_connect_cb, NULL, NULL);
363 _elm_unneed_ethumb(void)
366 if (--_elm_need_ethumb) return;
368 ethumb_client_disconnect(_elm_ethumb_client);
369 _elm_ethumb_client = NULL;
370 ethumb_client_shutdown();
371 ELM_ECORE_EVENT_ETHUMB_CONNECT = 0;
376 _elm_thumb_dropcb(void *data __UNUSED__, Evas_Object *o, Elm_Selection_Data *drop)
378 if ((!o) || (!drop) || (!drop->data)) return EINA_FALSE;
379 elm_thumb_file_set(o, drop->data, NULL);
384 * This must be called before any other function that handle with
385 * elm_thumb objects or ethumb_client instances.
390 elm_need_ethumb(void)
393 if (_elm_need_ethumb++) return EINA_TRUE;
394 ELM_ECORE_EVENT_ETHUMB_CONNECT = ecore_event_type_new();
395 ethumb_client_init();
396 _elm_ethumb_client = ethumb_client_connect(_connect_cb, NULL, NULL);
404 * Add a new thumb object to the parent.
406 * @param parent The parent object.
407 * @return The new object or NULL if it cannot be created.
409 * @see elm_thumb_file_set()
410 * @see elm_thumb_ethumb_client_get()
415 elm_thumb_add(Evas_Object *parent)
420 Evas_Coord minw, minh;
422 ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
424 ELM_SET_WIDTYPE(widtype, "thumb");
425 elm_widget_type_set(obj, "thumb");
426 elm_widget_sub_object_add(parent, obj);
427 elm_widget_data_set(obj, wd);
428 elm_widget_del_hook_set(obj, _del_hook);
429 elm_widget_theme_hook_set(obj, _theme_hook);
430 elm_widget_can_focus_set(obj, EINA_FALSE);
432 wd->frame = edje_object_add(e);
433 _elm_theme_object_set(obj, wd->frame, "thumb", "base", "default");
434 elm_widget_resize_object_set(obj, wd->frame);
436 edje_object_size_min_calc(obj, &minw, &minh);
437 evas_object_size_hint_min_set(obj, minw, minh);
445 wd->on_hold = EINA_FALSE;
446 wd->is_video = EINA_FALSE;
447 wd->was_video = EINA_FALSE;
449 #ifdef HAVE_ELEMENTARY_ETHUMB
450 evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_DOWN,
452 evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_UP,
454 evas_object_event_callback_add(obj, EVAS_CALLBACK_SHOW,
456 evas_object_event_callback_add(obj, EVAS_CALLBACK_HIDE,
460 // TODO: convert Elementary to subclassing of Evas_Smart_Class
461 // TODO: and save some bytes, making descriptions per-class and not instance!
462 evas_object_smart_callbacks_descriptions_set(obj, _signals);
467 * Reload thumbnail if it was generated before.
469 * This is useful if the ethumb client configuration changed, like its
470 * size, aspect or any other property one set in the handle returned
471 * by elm_thumb_ethumb_client_get().
473 * @param obj The thumb object to reload
475 * @see elm_thumb_file_set()
480 elm_thumb_reload(Evas_Object *obj)
482 ELM_CHECK_WIDTYPE(obj, widtype);
483 Widget_Data *wd = elm_widget_data_get(obj);
485 eina_stringshare_replace(&(wd->thumb.file), NULL);
486 eina_stringshare_replace(&(wd->thumb.key), NULL);
488 #ifdef HAVE_ELEMENTARY_ETHUMB
489 if (evas_object_visible_get(obj))
495 * Set the file that will be used as thumbnail.
497 * The file can be an image or a video (in that case, acceptable extensions are:
498 * avi, mp4, ogv, mov, mpg and wmv). To start the video animation, use the
499 * function elm_thumb_animate().
501 * @param obj The thumb object.
502 * @param file The path to file that will be used as thumb.
503 * @param key The key used in case of an EET file.
505 * @see elm_thumb_file_get()
506 * @see elm_thumb_reload()
507 * @see elm_thumb_animate()
512 elm_thumb_file_set(Evas_Object *obj, const char *file, const char *key)
514 ELM_CHECK_WIDTYPE(obj, widtype);
515 Eina_Bool file_replaced, key_replaced;
516 Widget_Data *wd = elm_widget_data_get(obj);
518 file_replaced = eina_stringshare_replace(&(wd->file), file);
519 key_replaced = eina_stringshare_replace(&(wd->key), key);
524 const char **ext, *ptr;
525 static const char *extensions[] =
527 ".avi", ".mp4", ".ogv", ".mov", ".mpg", ".wmv", NULL
530 prefix_size = eina_stringshare_strlen(wd->file) - 4;
531 if (prefix_size >= 0)
533 ptr = wd->file + prefix_size;
534 wd->is_video = EINA_FALSE;
535 for (ext = extensions; *ext; ext++)
536 if (!strcasecmp(ptr, *ext))
538 wd->is_video = EINA_TRUE;
544 eina_stringshare_replace(&(wd->thumb.file), NULL);
545 eina_stringshare_replace(&(wd->thumb.key), NULL);
547 #ifdef HAVE_ELEMENTARY_ETHUMB
548 if (((file_replaced) || (key_replaced)) && (evas_object_visible_get(obj)))
554 * Get the image or video path and key used to generate the thumbnail.
556 * @param obj The thumb object.
557 * @param file Pointer to filename.
558 * @param key Pointer to key.
560 * @see elm_thumb_file_set()
561 * @see elm_thumb_path_get()
562 * @see elm_thumb_animate()
567 elm_thumb_file_get(const Evas_Object *obj, const char **file, const char **key)
569 ELM_CHECK_WIDTYPE(obj, widtype);
570 Widget_Data *wd = elm_widget_data_get(obj);
579 * Get the path and key to the image or video generated by ethumb.
581 * One just need to make sure that the thumbnail was generated before getting
582 * its path; otherwise, the path will be NULL. One way to do that is by asking
583 * for the path when/after the "generate,stop" smart callback is called.
585 * @param obj The thumb object.
586 * @param file Pointer to thumb path.
587 * @param key Pointer to thumb key.
589 * @see elm_thumb_file_get()
594 elm_thumb_path_get(const Evas_Object *obj, const char **file, const char **key)
596 ELM_CHECK_WIDTYPE(obj, widtype);
597 Widget_Data *wd = elm_widget_data_get(obj);
600 *file = wd->thumb.file;
602 *key = wd->thumb.key;
606 * Set the animation state for the thumb object. If its content is an animated
607 * video, you may start/stop the animation or tell it to play continuously and
610 * @param obj The thumb object.
611 * @param setting The animation setting.
613 * @see elm_thumb_file_set()
618 elm_thumb_animate_set(Evas_Object *obj, Elm_Thumb_Animation_Setting setting)
620 ELM_CHECK_WIDTYPE(obj, widtype);
621 Widget_Data *wd = elm_widget_data_get(obj);
623 EINA_SAFETY_ON_TRUE_RETURN(setting >= ELM_THUMB_ANIMATION_LAST);
625 wd->anim_setting = setting;
626 if (setting == ELM_THUMB_ANIMATION_LOOP)
627 edje_object_signal_emit(wd->view, "animate_loop", "");
628 else if (setting == ELM_THUMB_ANIMATION_START)
629 edje_object_signal_emit(wd->view, "animate", "");
630 else if (setting == ELM_THUMB_ANIMATION_STOP)
631 edje_object_signal_emit(wd->view, "animate_stop", "");
635 * Get the animation state for the thumb object.
637 * @param obj The thumb object.
638 * @return getting The animation setting or @c ELM_THUMB_ANIMATION_LAST,
641 * @see elm_thumb_file_get()
645 EAPI Elm_Thumb_Animation_Setting
646 elm_thumb_animate_get(const Evas_Object *obj)
648 ELM_CHECK_WIDTYPE(obj, widtype) ELM_THUMB_ANIMATION_LAST;
649 Widget_Data *wd = elm_widget_data_get(obj);
651 return wd->anim_setting;
655 * Get the ethumb_client handle so custom configuration can be made.
656 * This must be called before the objects are created to be sure no object is
657 * visible and no generation started.
659 * @return Ethumb_Client instance or NULL.
664 * #include <Elementary.h>
665 * #ifndef ELM_LIB_QUICKLAUNCH
667 * elm_main(int argc, char **argv)
669 * Ethumb_Client *client;
675 * client = elm_thumb_ethumb_client_get();
678 * ERR("could not get ethumb_client");
681 * ethumb_client_size_set(client, 100, 100);
682 * ethumb_client_crop_align_set(client, 0.5, 0.5);
685 * // Create elm_thumb objects here
698 elm_thumb_ethumb_client_get(void)
700 return _elm_ethumb_client;
704 * Get the ethumb_client connection state.
706 * @return EINA_TRUE if the client is connected to the server or
707 * EINA_FALSE otherwise.
710 elm_thumb_ethumb_client_connected(void)
712 return _elm_ethumb_connected;
716 elm_thumb_editable_set(Evas_Object *obj, Eina_Bool edit)
718 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
719 Widget_Data *wd = elm_widget_data_get(obj);
721 if (!wd) return EINA_FALSE;
723 if (wd->edit == edit) return EINA_TRUE;
727 elm_drop_target_add(obj, ELM_SEL_FORMAT_IMAGE,
728 _elm_thumb_dropcb, obj);
730 elm_drop_target_del(obj);
736 elm_thumb_editable_get(const Evas_Object *obj)
738 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
739 Widget_Data *wd = elm_widget_data_get(obj);
741 if (!wd) return EINA_FALSE;
745 /* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-2f0^-2{2(0W1st0 :*/