efl/legacy/elementary/src/lib/elm_thumb.c

729 lines
20 KiB
C

#include <Elementary.h>
#include "elm_priv.h"
#include <assert.h>
typedef struct _Widget_Data Widget_Data;
struct _Widget_Data
{
Evas_Object *self;
Evas_Object *frame;
Evas_Object *view;
const char *file;
const char *key;
struct
{
const char *file;
const char *key;
#ifdef HAVE_ELEMENTARY_ETHUMB
const char *thumb_path;
const char *thumb_key;
Ethumb_Client_Async *request;
Ethumb_Thumb_Format format;
Eina_Bool retry : 1;
#endif
} thumb;
Ecore_Event_Handler *eeh;
Elm_Thumb_Animation_Setting anim_setting;
Eina_Bool on_hold : 1;
Eina_Bool is_video : 1;
Eina_Bool was_video : 1;
Eina_Bool edit : 1;
};
static const char *widtype = NULL;
static const char SIG_CLICKED[] = "clicked";
static const char SIG_CLICKED_DOUBLE[] = "clicked,double";
static const char SIG_GENERATE_ERROR[] = "generate,error";
static const char SIG_GENERATE_START[] = "generate,start";
static const char SIG_GENERATE_STOP[] = "generate,stop";
static const char SIG_LOAD_ERROR[] = "load,error";
static const char SIG_PRESS[] = "press";
static const Evas_Smart_Cb_Description _signals[] =
{
{SIG_CLICKED, ""},
{SIG_CLICKED_DOUBLE, ""},
{SIG_GENERATE_ERROR, ""},
{SIG_GENERATE_START, ""},
{SIG_GENERATE_STOP, ""},
{SIG_LOAD_ERROR, ""},
{SIG_PRESS, ""},
{NULL, NULL}
};
#define EDJE_SIGNAL_GENERATE_START "elm,thumb,generate,start"
#define EDJE_SIGNAL_GENERATE_STOP "elm,thumb,generate,stop"
#define EDJE_SIGNAL_GENERATE_ERROR "elm,thumb,generate,error"
#define EDJE_SIGNAL_LOAD_ERROR "elm,thumb,load,error"
#define EDJE_SIGNAL_PULSE_START "elm,state,pulse,start"
#define EDJE_SIGNAL_PULSE_STOP "elm,state,pulse,stop"
struct _Ethumb_Client *_elm_ethumb_client = NULL;
Eina_Bool _elm_ethumb_connected = EINA_FALSE;
#ifdef HAVE_ELEMENTARY_ETHUMB
static Eina_List *retry = NULL;
static int pending_request = 0;
#endif
EAPI int ELM_ECORE_EVENT_ETHUMB_CONNECT = 0;
static void
_del_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
#ifdef HAVE_ELEMENTARY_ETHUMB
if (wd->thumb.request)
{
ethumb_client_thumb_async_cancel(_elm_ethumb_client, wd->thumb.request);
wd->thumb.request = NULL;
}
if (wd->thumb.retry)
{
retry = eina_list_remove(retry, wd);
wd->thumb.retry = EINA_FALSE;
}
eina_stringshare_del(wd->thumb.thumb_path);
eina_stringshare_del(wd->thumb.thumb_key);
#endif
eina_stringshare_del(wd->file);
eina_stringshare_del(wd->key);
if (wd->eeh) ecore_event_handler_del(wd->eeh);
free(wd);
}
static void
_theme_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
_elm_theme_object_set(obj, wd->frame, "thumb", "base",
elm_widget_style_get(obj));
}
#ifdef HAVE_ELEMENTARY_ETHUMB
static void
_mouse_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
{
Widget_Data *wd = data;
Evas_Event_Mouse_Down *ev = event_info;
if (ev->button != 1)
return;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
wd->on_hold = EINA_TRUE;
else
wd->on_hold = EINA_FALSE;
if (ev->flags & EVAS_BUTTON_DOUBLE_CLICK)
evas_object_smart_callback_call(wd->self, SIG_CLICKED_DOUBLE, NULL);
else
evas_object_smart_callback_call(wd->self, SIG_PRESS, NULL);
}
static void
_mouse_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
{
Widget_Data *wd = data;
Evas_Event_Mouse_Up *ev = event_info;
if (ev->button != 1)
return;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
wd->on_hold = EINA_TRUE;
else
wd->on_hold = EINA_FALSE;
if (!wd->on_hold)
evas_object_smart_callback_call(wd->self, SIG_CLICKED, NULL);
wd->on_hold = EINA_FALSE;
}
static void
_thumb_ready(Widget_Data *wd, const char *thumb_path, const char *thumb_key)
{
Evas_Coord mw, mh;
Evas_Coord aw, ah;
evas_object_image_size_get(wd->view, &aw, &ah);
evas_object_size_hint_aspect_set(wd->view,
EVAS_ASPECT_CONTROL_BOTH,
aw, ah);
edje_object_part_swallow(wd->frame, "elm.swallow.content", wd->view);
edje_object_size_min_get(wd->frame, &mw, &mh);
edje_object_size_min_restricted_calc(wd->frame, &mw, &mh, mw, mh);
evas_object_size_hint_min_set(wd->self, mw, mh);
eina_stringshare_replace(&(wd->thumb.file), thumb_path);
eina_stringshare_replace(&(wd->thumb.key), thumb_key);
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_PULSE_STOP, "elm");
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_STOP, "elm");
evas_object_smart_callback_call(wd->self, SIG_GENERATE_STOP, NULL);
}
static void
_thumb_loaded(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Widget_Data *wd = data;
const char *thumb_path;
const char *thumb_key;
evas_object_image_file_get(wd->view, &thumb_path, &thumb_key);
_thumb_ready(wd, thumb_path, thumb_key);
}
/* As we do use stat to check if a thumbnail is available, it's possible
that we end up accessing before the file is completly written on disk.
By retrying each time a thumbnail is finished we should be fine or not.
*/
static Eina_Bool
_retry_thumb(Widget_Data *wd)
{
int r;
if ((wd->is_video) && (wd->thumb.format == ETHUMB_THUMB_EET))
{
edje_object_file_set(wd->view, NULL, NULL);
if (!edje_object_file_set(wd->view,
wd->thumb.thumb_path,
"movie/thumb"))
{
if (pending_request == 0)
ERR("could not set file=%s key=%s for %s",
wd->thumb.thumb_path,
wd->thumb.thumb_key,
wd->file);
goto view_err;
}
}
else
{
evas_object_image_file_set(wd->view, NULL, NULL);
evas_object_image_file_set(wd->view,
wd->thumb.thumb_path,
wd->thumb.thumb_key);
r = evas_object_image_load_error_get(wd->view);
if (r != EVAS_LOAD_ERROR_NONE)
{
if (pending_request == 0)
ERR("%s: %s", wd->thumb.thumb_path, evas_load_error_str(r));
goto view_err;
}
evas_object_event_callback_add(wd->view,
EVAS_CALLBACK_IMAGE_PRELOADED,
_thumb_loaded, wd);
evas_object_image_preload(wd->view, EINA_TRUE);
return EINA_TRUE;
}
_thumb_ready(wd, wd->thumb.thumb_path, wd->thumb.thumb_key);
eina_stringshare_del(wd->thumb.thumb_path);
wd->thumb.thumb_path = NULL;
eina_stringshare_del(wd->thumb.thumb_key);
wd->thumb.thumb_key = NULL;
return EINA_TRUE;
view_err:
return EINA_FALSE;
}
static void
_finished_thumb(Widget_Data *wd,
const char *thumb_path,
const char *thumb_key)
{
Eina_List *l, *ll;
Evas *evas;
int r;
evas = evas_object_evas_get(wd->self);
if ((wd->view) && (wd->is_video ^ wd->was_video))
{
evas_object_del(wd->view);
wd->view = NULL;
}
wd->was_video = wd->is_video;
if ((wd->is_video) &&
(ethumb_client_format_get(_elm_ethumb_client) == ETHUMB_THUMB_EET))
{
if (!wd->view)
{
wd->view = edje_object_add(evas);
if (!wd->view)
{
ERR("could not create edje object");
goto err;
}
elm_widget_sub_object_add(wd->self, wd->view);
}
if (!edje_object_file_set(wd->view, thumb_path, thumb_key))
{
wd->thumb.thumb_path = eina_stringshare_ref(thumb_path);
wd->thumb.thumb_key = eina_stringshare_ref(thumb_key);
wd->thumb.format = ethumb_client_format_get(_elm_ethumb_client);
wd->thumb.retry = EINA_TRUE;
retry = eina_list_append(retry, wd);
return ;
}
}
else
{
if (!wd->view)
{
wd->view = evas_object_image_filled_add(evas);
if (!wd->view)
{
ERR("could not create image object");
goto err;
}
evas_object_event_callback_add(wd->view,
EVAS_CALLBACK_IMAGE_PRELOADED,
_thumb_loaded, wd);
elm_widget_sub_object_add(wd->self, wd->view);
evas_object_hide(wd->view);
}
evas_object_image_file_set(wd->view, thumb_path, thumb_key);
r = evas_object_image_load_error_get(wd->view);
if (r != EVAS_LOAD_ERROR_NONE)
{
WRN("%s: %s", thumb_path, evas_load_error_str(r));
wd->thumb.thumb_path = eina_stringshare_ref(thumb_path);
wd->thumb.thumb_key = eina_stringshare_ref(thumb_key);
wd->thumb.format = ethumb_client_format_get(_elm_ethumb_client);
wd->thumb.retry = EINA_TRUE;
retry = eina_list_append(retry, wd);
return ;
}
evas_object_image_preload(wd->view, 0);
return ;
}
_thumb_ready(wd, thumb_path, thumb_key);
EINA_LIST_FOREACH_SAFE(retry, l, ll, wd)
if (_retry_thumb(wd))
retry = eina_list_remove_list(retry, l);
if (pending_request == 0)
EINA_LIST_FREE(retry, wd)
{
eina_stringshare_del(wd->thumb.thumb_path);
wd->thumb.thumb_path = NULL;
eina_stringshare_del(wd->thumb.thumb_key);
wd->thumb.thumb_key = NULL;
evas_object_del(wd->view);
wd->view = NULL;
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_LOAD_ERROR, "elm");
evas_object_smart_callback_call(wd->self, SIG_LOAD_ERROR, NULL);
}
return;
err:
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_LOAD_ERROR, "elm");
evas_object_smart_callback_call(wd->self, SIG_LOAD_ERROR, NULL);
}
static void
_elm_thumb_done(Ethumb_Client *client __UNUSED__, const char *thumb_path, const char *thumb_key, void *data)
{
Widget_Data *wd = data;
assert(wd->thumb.request);
pending_request--;
wd->thumb.request = NULL;
_finished_thumb(wd, thumb_path, thumb_key);
}
static void
_elm_thumb_error(Ethumb_Client *client __UNUSED__, void *data)
{
Widget_Data *wd = data;
assert(wd->thumb.request);
pending_request--;
wd->thumb.request = NULL;
ERR("could not generate thumbnail for %s (key: %s)", wd->thumb.file, wd->thumb.key ? wd->thumb.key : "");
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_ERROR, "elm");
evas_object_smart_callback_call(wd->self, SIG_GENERATE_ERROR, NULL);
}
static void
_thumb_apply(Widget_Data *wd)
{
if (wd->thumb.request)
{
ethumb_client_thumb_async_cancel(_elm_ethumb_client, wd->thumb.request);
wd->thumb.request = NULL;
}
if (wd->thumb.retry)
{
retry = eina_list_remove(retry, wd);
wd->thumb.retry = EINA_FALSE;
}
if (!wd->file) return;
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_PULSE_START, "elm");
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_START, "elm");
evas_object_smart_callback_call(wd->self, SIG_GENERATE_START, NULL);
pending_request++;
ethumb_client_file_set(_elm_ethumb_client, wd->file, wd->key);
wd->thumb.request = ethumb_client_thumb_async_get(_elm_ethumb_client,
_elm_thumb_done,
_elm_thumb_error,
wd);
}
static Eina_Bool
_thumb_apply_cb(void *data, int type __UNUSED__, void *ev __UNUSED__)
{
_thumb_apply(data);
return ECORE_CALLBACK_RENEW;
}
static void
_thumb_show(Widget_Data *wd)
{
evas_object_show(wd->frame);
if (elm_thumb_ethumb_client_connected_get())
{
_thumb_apply(wd);
return;
}
if (!wd->eeh)
wd->eeh = ecore_event_handler_add(ELM_ECORE_EVENT_ETHUMB_CONNECT,
_thumb_apply_cb, wd);
}
static void
_thumb_show_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
_thumb_show(data);
}
static void
_thumb_hide_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Widget_Data *wd = data;
evas_object_hide(wd->frame);
if (wd->thumb.request)
{
ethumb_client_thumb_async_cancel(_elm_ethumb_client, wd->thumb.request);
wd->thumb.request = NULL;
edje_object_signal_emit(wd->frame, EDJE_SIGNAL_GENERATE_STOP, "elm");
evas_object_smart_callback_call(wd->self, SIG_GENERATE_STOP, NULL);
}
if (wd->thumb.retry)
{
retry = eina_list_remove(retry, wd);
wd->thumb.retry = EINA_FALSE;
}
if (wd->eeh)
{
ecore_event_handler_del(wd->eeh);
wd->eeh = NULL;
}
}
#endif
#ifdef ELM_ETHUMB
static int _elm_need_ethumb = 0;
static void _on_die_cb(void *, Ethumb_Client *);
static void
_connect_cb(void *data __UNUSED__, Ethumb_Client *c, Eina_Bool success)
{
if (success)
{
ethumb_client_on_server_die_callback_set(c, _on_die_cb, NULL, NULL);
_elm_ethumb_connected = EINA_TRUE;
ecore_event_add(ELM_ECORE_EVENT_ETHUMB_CONNECT, NULL, NULL, NULL);
}
else
_elm_ethumb_client = NULL;
}
static void
_on_die_cb(void *data __UNUSED__, Ethumb_Client *c __UNUSED__)
{
ethumb_client_disconnect(_elm_ethumb_client);
_elm_ethumb_client = NULL;
_elm_ethumb_connected = EINA_FALSE;
_elm_ethumb_client = ethumb_client_connect(_connect_cb, NULL, NULL);
}
#endif
void
_elm_unneed_ethumb(void)
{
#ifdef ELM_ETHUMB
if (--_elm_need_ethumb) return;
ethumb_client_disconnect(_elm_ethumb_client);
_elm_ethumb_client = NULL;
ethumb_client_shutdown();
ELM_ECORE_EVENT_ETHUMB_CONNECT = 0;
#endif
}
static Eina_Bool
_elm_thumb_dropcb(void *data __UNUSED__, Evas_Object *o, Elm_Selection_Data *drop)
{
if ((!o) || (!drop) || (!drop->data)) return EINA_FALSE;
elm_thumb_file_set(o, drop->data, NULL);
return EINA_TRUE;
}
EAPI Eina_Bool
elm_need_ethumb(void)
{
#ifdef ELM_ETHUMB
if (_elm_need_ethumb++) return EINA_TRUE;
ELM_ECORE_EVENT_ETHUMB_CONNECT = ecore_event_type_new();
ethumb_client_init();
_elm_ethumb_client = ethumb_client_connect(_connect_cb, NULL, NULL);
return EINA_TRUE;
#else
return EINA_FALSE;
#endif
}
EAPI Evas_Object *
elm_thumb_add(Evas_Object *parent)
{
Evas *e;
Widget_Data *wd;
Evas_Object *obj;
Evas_Coord minw, minh;
ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
ELM_SET_WIDTYPE(widtype, "thumb");
elm_widget_type_set(obj, "thumb");
elm_widget_sub_object_add(parent, obj);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
elm_widget_can_focus_set(obj, EINA_FALSE);
wd->frame = edje_object_add(e);
_elm_theme_object_set(obj, wd->frame, "thumb", "base", "default");
elm_widget_resize_object_set(obj, wd->frame);
edje_object_size_min_calc(obj, &minw, &minh);
evas_object_size_hint_min_set(obj, minw, minh);
wd->self = obj;
wd->view = NULL;
wd->file = NULL;
wd->key = NULL;
wd->eeh = NULL;
wd->on_hold = EINA_FALSE;
wd->is_video = EINA_FALSE;
wd->was_video = EINA_FALSE;
#ifdef HAVE_ELEMENTARY_ETHUMB
wd->thumb.thumb_path = NULL;
wd->thumb.thumb_key = NULL;
wd->thumb.request = NULL;
evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_DOWN,
_mouse_down_cb, wd);
evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_UP,
_mouse_up_cb, wd);
evas_object_event_callback_add(obj, EVAS_CALLBACK_SHOW,
_thumb_show_cb, wd);
evas_object_event_callback_add(obj, EVAS_CALLBACK_HIDE,
_thumb_hide_cb, wd);
#endif
// TODO: convert Elementary to subclassing of Evas_Smart_Class
// TODO: and save some bytes, making descriptions per-class and not instance!
evas_object_smart_callbacks_descriptions_set(obj, _signals);
return obj;
}
EAPI void
elm_thumb_reload(Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
eina_stringshare_replace(&(wd->thumb.file), NULL);
eina_stringshare_replace(&(wd->thumb.key), NULL);
#ifdef HAVE_ELEMENTARY_ETHUMB
if (evas_object_visible_get(obj))
_thumb_show(wd);
#endif
}
EAPI void
elm_thumb_file_set(Evas_Object *obj, const char *file, const char *key)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Eina_Bool file_replaced, key_replaced;
Widget_Data *wd = elm_widget_data_get(obj);
file_replaced = eina_stringshare_replace(&(wd->file), file);
key_replaced = eina_stringshare_replace(&(wd->key), key);
if (file_replaced)
{
int prefix_size;
const char **ext, *ptr;
static const char *extensions[] =
{
".avi", ".mp4", ".ogv", ".mov", ".mpg", ".wmv", NULL
};
prefix_size = eina_stringshare_strlen(wd->file) - 4;
if (prefix_size >= 0)
{
ptr = wd->file + prefix_size;
wd->is_video = EINA_FALSE;
for (ext = extensions; *ext; ext++)
if (!strcasecmp(ptr, *ext))
{
wd->is_video = EINA_TRUE;
break;
}
}
}
eina_stringshare_replace(&(wd->thumb.file), NULL);
eina_stringshare_replace(&(wd->thumb.key), NULL);
#ifdef HAVE_ELEMENTARY_ETHUMB
if (((file_replaced) || (key_replaced)) && (evas_object_visible_get(obj)))
_thumb_show(wd);
#else
(void)key_replaced;
#endif
}
EAPI void
elm_thumb_file_get(const Evas_Object *obj, const char **file, const char **key)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (file)
*file = wd->file;
if (key)
*key = wd->key;
}
EAPI void
elm_thumb_path_get(const Evas_Object *obj, const char **file, const char **key)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (file)
*file = wd->thumb.file;
if (key)
*key = wd->thumb.key;
}
EAPI void
elm_thumb_animate_set(Evas_Object *obj, Elm_Thumb_Animation_Setting setting)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
EINA_SAFETY_ON_TRUE_RETURN(setting >= ELM_THUMB_ANIMATION_LAST);
wd->anim_setting = setting;
if (setting == ELM_THUMB_ANIMATION_LOOP)
edje_object_signal_emit(wd->view, "animate_loop", "");
else if (setting == ELM_THUMB_ANIMATION_START)
edje_object_signal_emit(wd->view, "animate", "");
else if (setting == ELM_THUMB_ANIMATION_STOP)
edje_object_signal_emit(wd->view, "animate_stop", "");
}
EAPI Elm_Thumb_Animation_Setting
elm_thumb_animate_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_THUMB_ANIMATION_LAST;
Widget_Data *wd = elm_widget_data_get(obj);
return wd->anim_setting;
}
EAPI void *
elm_thumb_ethumb_client_get(void)
{
return _elm_ethumb_client;
}
EAPI Eina_Bool
elm_thumb_ethumb_client_connected_get(void)
{
return _elm_ethumb_connected;
}
EAPI Eina_Bool
elm_thumb_editable_set(Evas_Object *obj, Eina_Bool edit)
{
ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
edit = !!edit;
if (wd->edit == edit) return EINA_TRUE;
wd->edit = edit;
if (wd->edit)
elm_drop_target_add(obj, ELM_SEL_FORMAT_IMAGE,
_elm_thumb_dropcb, obj);
else
elm_drop_target_del(obj);
return EINA_TRUE;
}
EAPI Eina_Bool
elm_thumb_editable_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
return wd->edit;
}
/* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-3f0^-2{2(0W1st0 :*/