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ephoto/src/bin/ephoto_thumb_browser.c

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#include "ephoto.h"
#define ZOOM_MAX 512
#define ZOOM_MIN 128
#define ZOOM_STEP 32
#define TODO_ITEM_MIN_BATCH 16
#define PARENT_DIR "Up"
typedef struct _Ephoto_Thumb_Browser Ephoto_Thumb_Browser;
struct _Ephoto_Thumb_Browser
{
Ephoto *ephoto;
Evas_Object *main;
Evas_Object *table;
Evas_Object *bar;
Evas_Object *entry;
Evas_Object *grid;
Evas_Object *panel;
Eio_File *ls;
Eina_List *todo_items;
Eina_List *grid_items;
Eina_List *handlers;
struct {
Elm_Object_Item *zoom_in;
Elm_Object_Item *zoom_out;
Elm_Object_Item *view_single;
Elm_Object_Item *slideshow;
} action;
struct {
Ecore_Animator *todo_items;
} animator;
Eina_Bool main_deleted : 1;
};
static void
_todo_items_free(Ephoto_Thumb_Browser *tb)
{
eina_list_free(tb->todo_items);
tb->todo_items = NULL;
}
static void
_grid_items_free(Ephoto_Thumb_Browser *tb)
{
eina_list_free(tb->grid_items);
tb->grid_items = NULL;
}
static char *
_ephoto_thumb_item_text_get(void *data, Evas_Object *obj __UNUSED__, const char *part __UNUSED__)
{
Ephoto_Entry *e = data;
return strdup(e->label);
}
static Evas_Object *
_ephoto_thumb_file_icon_get(void *data, Evas_Object *obj, const char *part __UNUSED__)
{
Ephoto_Entry *e = data;
return ephoto_thumb_add(e->ephoto, obj, e->path);
}
static void
_ephoto_thumb_item_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__)
{
/* FIXME: the entry is already freed when changing directories
* One solution is to take care of this cleaning when manually removing
* some grid items
Ephoto_Entry *e = data;
e->item = NULL;
*/
}
static Elm_Gengrid_Item_Class _ephoto_thumb_file_class;
static int
_entry_cmp(const void *pa, const void *pb)
{
const Elm_Gengrid_Item *ia = pa;
const Ephoto_Entry *a, *b = pb;
a = elm_object_item_data_get(ia);
return strcoll(a->basename, b->basename);
}
static void
_entry_item_add(Ephoto_Thumb_Browser *tb, Ephoto_Entry *e)
{
const Elm_Gengrid_Item_Class *ic;
int near_cmp;
Elm_Object_Item *near_item = NULL;
Eina_List *near_node = NULL;
near_node = eina_list_search_sorted_near_list
(tb->grid_items, _entry_cmp, e, &near_cmp);
if (near_node)
near_item = near_node->data;
ic = &_ephoto_thumb_file_class;
if (!near_item)
{
e->item = elm_gengrid_item_append(tb->grid, ic, e, NULL, NULL);
tb->grid_items = eina_list_append(tb->grid_items, e->item);
}
else
{
if (near_cmp < 0)
{
e->item = elm_gengrid_item_insert_after
(tb->grid, ic, e, near_item, NULL, NULL);
tb->grid_items = eina_list_append_relative
(tb->grid_items, e->item, near_item);
}
else
{
e->item = elm_gengrid_item_insert_before
(tb->grid, ic, e, near_item, NULL, NULL);
tb->grid_items = eina_list_prepend_relative
(tb->grid_items, e->item, near_item);
}
}
if (e->item)
elm_object_item_data_set(e->item, e);
else
{
ERR("could not add item to grid: path '%s'", e->path);
ephoto_entry_free(e);
return;
}
}
static Eina_Bool
_todo_items_process(void *data)
{
Ephoto_Thumb_Browser *tb = data;
Ephoto_Entry *entry;
if ((tb->ls) && (eina_list_count(tb->todo_items) < TODO_ITEM_MIN_BATCH))
return EINA_TRUE;
tb->animator.todo_items = NULL;
EINA_LIST_FREE(tb->todo_items, entry)
_entry_item_add(tb, entry);
return EINA_FALSE;
}
static void
_ephoto_thumb_selected(void *data, Evas_Object *o __UNUSED__, void *event_info)
{
Ephoto_Thumb_Browser *tb = data;
Elm_Object_Item *it = event_info;
Ephoto_Entry *e = elm_object_item_data_get(it);
elm_gengrid_item_selected_set(it, EINA_FALSE);
evas_object_smart_callback_call(tb->main, "view", e);
}
static void
_changed_dir(void *data, Evas_Object *o __UNUSED__, void *event_info)
{
Ephoto_Thumb_Browser *tb = data;
const char *path = event_info;
if (path)
ephoto_directory_set(tb->ephoto, path);
else
elm_fileselector_path_set(tb->entry, tb->ephoto->config->directory);
}
static void
_changed_dir_text(void *data, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
const char *path = elm_fileselector_path_get(tb->entry);
if (ecore_file_is_dir(path))
ephoto_directory_set(tb->ephoto, path);
}
static void
_zoom_set(Ephoto_Thumb_Browser *tb, int zoom)
{
double scale = elm_config_scale_get();
if (zoom > ZOOM_MAX) zoom = ZOOM_MAX;
else if (zoom < ZOOM_MIN) zoom = ZOOM_MIN;
ephoto_thumb_size_set(tb->ephoto, zoom);
elm_gengrid_item_size_set(tb->grid, zoom * scale, zoom * scale);
}
static void
_zoom_in(void *data, Evas_Object *o, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
Evas_Object *min = evas_object_data_get(o, "min");
int zoom = tb->ephoto->config->thumb_size + ZOOM_STEP;
_zoom_set(tb, zoom);
if (zoom >= ZOOM_MAX) elm_object_disabled_set(o, EINA_TRUE);
if (zoom > ZOOM_MIN) elm_object_disabled_set(min, EINA_FALSE);
}
static void
_zoom_out(void *data, Evas_Object *o, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
Evas_Object *max = evas_object_data_get(o, "max");
int zoom = tb->ephoto->config->thumb_size - ZOOM_STEP;
_zoom_set(tb, zoom);
if (zoom <= ZOOM_MIN) elm_object_disabled_set(o, EINA_TRUE);
if (zoom < ZOOM_MAX) elm_object_disabled_set(max, EINA_FALSE);
}
static void
_view_single(void *data, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
Elm_Object_Item *it = elm_gengrid_selected_item_get(tb->grid);
Ephoto_Entry *entry;
if (it) entry = elm_object_item_data_get(it);
else entry = eina_list_nth(tb->ephoto->entries, 0);
if (!entry) return;
evas_object_smart_callback_call(tb->main, "view", entry);
}
static void
_slideshow(void *data, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
Elm_Object_Item *it = elm_gengrid_selected_item_get(tb->grid);
Ephoto_Entry *entry;
if (it) entry = elm_object_item_data_get(it);
else entry = eina_list_nth(tb->ephoto->entries, 0);
if (!entry) return;
evas_object_smart_callback_call(tb->main, "slideshow", entry);
}
static void
_key_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
{
Ephoto_Thumb_Browser *tb = data;
Evas_Event_Key_Down *ev = event_info;
Eina_Bool alt = evas_key_modifier_is_set(ev->modifiers, "Alt");
const char *k = ev->keyname;
if (alt)
{
if (!strcmp(k, "Up"))
{
if (strcmp(tb->ephoto->config->directory, "/"))
{
char *parent = ecore_file_dir_get
(tb->ephoto->config->directory);
if (parent)
ephoto_directory_set(tb->ephoto, parent);
free(parent);
}
}
return;
}
if (!strcmp(k, "F5"))
{
Elm_Object_Item *it = elm_gengrid_selected_item_get(tb->grid);
Ephoto_Entry *entry;
if (it) entry = elm_object_item_data_get(it);
else entry = eina_list_nth(tb->grid_items, 0);
if (entry)
evas_object_smart_callback_call(tb->main, "slideshow", entry);
}
}
static void
_main_del(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
Ecore_Event_Handler *handler;
if (elm_panel_hidden_get(tb->panel))
tb->ephoto->config->thumb_browser_panel = 1;
else
tb->ephoto->config->thumb_browser_panel = 0;
_todo_items_free(tb);
_grid_items_free(tb);
EINA_LIST_FREE(tb->handlers, handler)
ecore_event_handler_del(handler);
if (tb->animator.todo_items)
{
ecore_animator_del(tb->animator.todo_items);
tb->animator.todo_items = NULL;
}
if (tb->ls)
{
tb->main_deleted = EINA_TRUE;
eio_file_cancel(tb->ls);
return;
}
free(tb);
}
static Eina_Bool
_ephoto_thumb_populate_start(void *data, int type __UNUSED__, void *event __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
evas_object_smart_callback_call(tb->main, "changed,directory", NULL);
_todo_items_free(tb);
_grid_items_free(tb);
elm_gengrid_clear(tb->grid);
elm_fileselector_path_set(tb->entry, tb->ephoto->config->directory);
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_ephoto_thumb_populate_end(void *data, int type __UNUSED__, void *event __UNUSED__)
{
Ephoto_Thumb_Browser *tb = data;
tb->ls = NULL;
if (tb->main_deleted)
{
free(tb);
return ECORE_CALLBACK_PASS_ON;
}
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_ephoto_thumb_populate_error(void *data __UNUSED__, int type __UNUSED__, void *event __UNUSED__)
{
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_ephoto_thumb_entry_create(void *data, int type __UNUSED__, void *event)
{
Ephoto_Thumb_Browser *tb = data;
Ephoto_Event_Entry_Create *ev = event;
Ephoto_Entry *e;
e = ev->entry;
tb->todo_items = eina_list_append(tb->todo_items, e);
if (!tb->animator.todo_items)
tb->animator.todo_items = ecore_animator_add(_todo_items_process, tb);
return ECORE_CALLBACK_PASS_ON;
}
Evas_Object *
ephoto_thumb_browser_add(Ephoto *ephoto, Evas_Object *parent)
{
Evas_Object *box = elm_box_add(parent);
Elm_Object_Item *icon;
Evas_Object *min, *max, *ic;
Ephoto_Thumb_Browser *tb;
EINA_SAFETY_ON_NULL_RETURN_VAL(box, NULL);
tb = calloc(1, sizeof(Ephoto_Thumb_Browser));
EINA_SAFETY_ON_NULL_GOTO(tb, error);
_ephoto_thumb_file_class.item_style = "thumb";
_ephoto_thumb_file_class.func.text_get = _ephoto_thumb_item_text_get;
_ephoto_thumb_file_class.func.content_get = _ephoto_thumb_file_icon_get;
_ephoto_thumb_file_class.func.state_get = NULL;
_ephoto_thumb_file_class.func.del = _ephoto_thumb_item_del;
tb->ephoto = ephoto;
tb->main = box;
evas_object_size_hint_weight_set(tb->main, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(tb->main, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_event_callback_add(tb->main, EVAS_CALLBACK_DEL, _main_del, tb);
evas_object_event_callback_add
(tb->main, EVAS_CALLBACK_KEY_DOWN, _key_down, tb);
evas_object_data_set(tb->main, "thumb_browser", tb);
ic = elm_icon_add(tb->main);
elm_icon_standard_set(ic, "folder");
evas_object_size_hint_aspect_set(ic, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1);
tb->entry = elm_fileselector_entry_add(tb->main);
EINA_SAFETY_ON_NULL_GOTO(tb->entry, error);
evas_object_size_hint_weight_set(tb->entry, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(tb->entry, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_object_text_set(tb->entry, "Choose");
elm_object_part_content_set(tb->entry, "button icon", ic);
elm_fileselector_folder_only_set(tb->entry, EINA_TRUE);
elm_fileselector_entry_inwin_mode_set(tb->entry, EINA_TRUE);
elm_fileselector_expandable_set(tb->entry, EINA_FALSE);
evas_object_smart_callback_add
(tb->entry, "file,chosen", _changed_dir, tb);
evas_object_smart_callback_add
(tb->entry, "activated", _changed_dir_text, tb);
elm_box_pack_end(tb->main, tb->entry);
evas_object_show(tb->entry);
tb->table = elm_table_add(tb->main);
evas_object_size_hint_weight_set(tb->table, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(tb->table, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(tb->main, tb->table);
evas_object_show(tb->table);
tb->grid = elm_gengrid_add(tb->table);
EINA_SAFETY_ON_NULL_GOTO(tb->grid, error);
evas_object_size_hint_weight_set
(tb->grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(tb->grid, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_gengrid_align_set(tb->grid, 0.5, 0.0);
elm_scroller_bounce_set(tb->grid, EINA_FALSE, EINA_TRUE);
evas_object_size_hint_align_set
(tb->grid, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_size_hint_weight_set
(tb->grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_smart_callback_add
(tb->grid, "selected", _ephoto_thumb_selected, tb);
_zoom_set(tb, tb->ephoto->config->thumb_size);
evas_object_show(tb->grid);
elm_table_pack(tb->table, tb->grid, 0, 0, 4, 1);
tb->panel = elm_panel_add(tb->table);
EINA_SAFETY_ON_NULL_GOTO(tb->panel, error);
elm_panel_orient_set(tb->panel, ELM_PANEL_ORIENT_LEFT);
evas_object_size_hint_weight_set(tb->panel, 0.0, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(tb->panel, EVAS_HINT_FILL, EVAS_HINT_FILL);
if (tb->ephoto->config->thumb_browser_panel)
elm_panel_hidden_set(tb->panel, EINA_TRUE);
else
elm_panel_hidden_set(tb->panel, EINA_FALSE);
elm_table_pack(tb->table, tb->panel, 0, 0, 1, 1);
evas_object_show(tb->panel);
tb->bar = elm_toolbar_add(tb->panel);
EINA_SAFETY_ON_NULL_GOTO(tb->bar, error);
elm_toolbar_horizontal_set(tb->bar, EINA_FALSE);
elm_toolbar_shrink_mode_set(tb->bar, ELM_TOOLBAR_SHRINK_SCROLL);
elm_toolbar_select_mode_set(tb->bar, ELM_OBJECT_SELECT_MODE_NONE);
evas_object_size_hint_weight_set(tb->bar, 0.0, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(tb->bar, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_toolbar_item_append(tb->bar, "image", "View Single", _view_single, tb);
elm_toolbar_item_append(tb->bar, "media-playback-start", "Slideshow", _slideshow, tb);
icon = elm_toolbar_item_append(tb->bar, "zoom-in", "Zoom In", _zoom_in, tb);
max = elm_object_item_widget_get(icon);
icon = elm_toolbar_item_append(tb->bar, "zoom-out", "Zoom Out", _zoom_out, tb);
min = elm_object_item_widget_get(icon);
evas_object_data_set(max, "min", min);
evas_object_data_set(min, "max", max);
elm_object_content_set(tb->panel, tb->bar);
evas_object_show(tb->bar);
tb->handlers = eina_list_append
(tb->handlers, ecore_event_handler_add
(EPHOTO_EVENT_POPULATE_START, _ephoto_thumb_populate_start, tb));
tb->handlers = eina_list_append
(tb->handlers, ecore_event_handler_add
(EPHOTO_EVENT_POPULATE_END, _ephoto_thumb_populate_end, tb));
tb->handlers = eina_list_append
(tb->handlers, ecore_event_handler_add
(EPHOTO_EVENT_POPULATE_ERROR, _ephoto_thumb_populate_error, tb));
tb->handlers = eina_list_append
(tb->handlers, ecore_event_handler_add
(EPHOTO_EVENT_ENTRY_CREATE, _ephoto_thumb_entry_create, tb));
return tb->main;
error:
evas_object_del(tb->main);
return NULL;
}
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