src/lib/elm_diskselector.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "els_scroller.h"
   4
   5 #ifndef MAX
   6 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
   7 #endif
   8
   9 #ifndef CEIL
  10 #define CEIL(a) (((a) % 2 != 0) ? ((a) / 2 + 1) : ((a) / 2))
  11 #endif
  12
  13 #define DISPLAY_ITEM_NUM_MIN 3
  14
  15 typedef struct _Widget_Data Widget_Data;
  16 typedef struct _Elm_Diskselector_Item Elm_Diskselector_Item;
  17
  18 struct _Widget_Data
  19 {
  20    Evas_Object *self;
  21    Evas_Object *scroller;
  22    Evas_Object *main_box;
  23    Evas_Object *left_blank;
  24    Evas_Object *right_blank;
  25    Elm_Diskselector_Item *selected_item;
  26    Elm_Diskselector_Item *first;
  27    Elm_Diskselector_Item *second;
  28    Elm_Diskselector_Item *s_last;
  29    Elm_Diskselector_Item *last;
  30    Eina_List *items;
  31    Eina_List *r_items;
  32    Eina_List *over_items;
  33    Eina_List *under_items;
  34    int item_count, len_threshold, len_side, display_item_num;
  35    Ecore_Idle_Enterer *idler;
  36    Ecore_Idle_Enterer *check_idler;
  37    Evas_Coord minw, minh;
  38    Eina_Bool init:1;
  39    Eina_Bool round:1;
  40    Eina_Bool display_item_num_by_api:1;
  41 };
  42
  43 struct _Elm_Diskselector_Item
  44 {
  45    ELM_WIDGET_ITEM;
  46    Eina_List *node;
  47    Evas_Object *icon;
  48    const char *label;
  49    Evas_Smart_Cb func;
  50 };
  51
  52 static const char *widtype = NULL;
  53
  54 static Eina_Bool _move_scroller(void *data);
  55 static void _del_hook(Evas_Object * obj);
  56 static void _del_pre_hook(Evas_Object * obj);
  57 static void _sizing_eval(Evas_Object * obj);
  58 static void _theme_hook(Evas_Object * obj);
  59 static void _on_focus_hook(void *data, Evas_Object *obj);
  60 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src, Evas_Callback_Type type, void *event_info);
  61 static void _sub_del(void *data, Evas_Object * obj, void *event_info);
  62 static void _round_items_del(Widget_Data *wd);
  63 static void _scroller_move_cb(void *data, Evas_Object *obj, void *event_info);
  64 static void _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
  65                            const char *emission __UNUSED__,
  66                            const char *source __UNUSED__);
  67 static void _selected_item_indicate(Elm_Diskselector_Item *it);
  68 static void _item_text_set_hook(Elm_Object_Item *it,
  69                                 const char *part,
  70                                 const char *label);
  71 static const char * _item_text_get_hook(const Elm_Object_Item *it,
  72                                         const char *part);
  73 static void _item_content_set_hook(Elm_Object_Item *it,
  74                                    const char *part,
  75                                    Evas_Object *content);
  76 static Evas_Object * _item_content_get_hook(const Elm_Object_Item *it,
  77                                             const char *part);
  78
  79 static const char SIG_SELECTED[] = "selected";
  80 static const char SIG_SCROLL_ANIM_START[] = "scroll,anim,start";
  81 static const char SIG_SCROLL_ANIM_STOP[] = "scroll,anim,stop";
  82 static const char SIG_SCROLL_DRAG_START[] = "scroll,drag,start";
  83 static const char SIG_SCROLL_DRAG_STOP[] = "scroll,drag,stop";
  84
  85 static const Evas_Smart_Cb_Description _signals[] = {
  86        {SIG_SELECTED, ""},
  87        {SIG_SCROLL_ANIM_START, ""},
  88        {SIG_SCROLL_ANIM_STOP, ""},
  89        {SIG_SCROLL_DRAG_START, ""},
  90        {SIG_SCROLL_DRAG_STOP, ""},
  91        {NULL, NULL}
  92 };
  93
  94 static void
  95 _diskselector_object_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
  96 {
  97    Widget_Data *wd;
  98    Evas_Coord w, h;
  99
 100    wd = elm_widget_data_get(data);
 101    if (!wd) return;
 102
 103    if ((wd->minw == -1) && (wd->minh == -1))
 104       elm_coords_finger_size_adjust(6, &wd->minw, 1, &wd->minh);
 105    edje_object_size_min_restricted_calc
 106       (elm_smart_scroller_edje_object_get
 107           (wd->scroller), &wd->minw, &wd->minh, wd->minw, wd->minh);
 108    evas_object_size_hint_min_set(obj, wd->minw, wd->minh);
 109    evas_object_size_hint_max_set(obj, -1, -1);
 110
 111    evas_object_geometry_get(wd->scroller, NULL, NULL, &w, &h);
 112    if (wd->round)
 113      evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + (CEIL(wd->display_item_num) * 2)), h);
 114    else
 115      evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + CEIL(wd->display_item_num)), h);
 116
 117    elm_smart_scroller_paging_set(wd->scroller, 0, 0,
 118                                  (int)(w / wd->display_item_num), 0);
 119
 120    if (!wd->idler)
 121      wd->idler = ecore_idle_enterer_before_add(_move_scroller, data);
 122 }
 123
 124 static void
 125 _item_del(Elm_Diskselector_Item *item)
 126 {
 127    if (!item) return;
 128    eina_stringshare_del(item->label);
 129    if (item->icon)
 130      evas_object_del(item->icon);
 131 }
 132
 133 static int
 134 _count_letter(const char *str)
 135 {
 136    int pos = 0;
 137    int code = 0, chnum;
 138
 139    for (chnum = 0; ; chnum++)
 140      {
 141         pos = evas_string_char_next_get(str, pos, &code);
 142         if (code == 0) break;
 143      }
 144    return chnum;
 145 }
 146
 147 static int
 148 _check_letter(const char *str, int length)
 149 {
 150    int pos = 0;
 151    int code = 0, chnum;
 152
 153    for (chnum = 0; ; chnum++)
 154      {
 155         if (chnum == length) break;
 156         pos = evas_string_char_next_get(str, pos, &code);
 157         if (code == 0) break;
 158      }
 159    return pos;
 160 }
 161
 162 static Eina_Bool
 163 _check_string(void *data)
 164 {
 165    int mid, steps, length, diff;
 166    Elm_Diskselector_Item *it;
 167    Eina_List *list, *l;
 168    Evas_Coord ox, ow;
 169    char buf[1024];
 170    Widget_Data *wd = data;
 171
 172    evas_object_geometry_get(wd->scroller, &ox, NULL, &ow, NULL);
 173    if (ow <= 0)
 174      return EINA_FALSE;
 175    if (!wd->init)
 176      return EINA_FALSE;
 177    if (!wd->round)
 178      list = wd->items;
 179    else
 180      list = wd->r_items;
 181
 182    EINA_LIST_FOREACH(list, l, it)
 183      {
 184         Evas_Coord x, w;
 185         int len;
 186         evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
 187         /* item not visible */
 188         if ((x + w <= ox) || (x >= ox + ow))
 189           continue;
 190
 191         len = _count_letter(it->label);
 192 //        // FIXME: len should be # of ut8f letters. ie count using utf8 string walk, not stringshare len
 193 //        len = eina_stringshare_strlen(it->label);
 194
 195         if (x <= ox + 5)
 196           edje_object_signal_emit(VIEW(it), "elm,state,left_side",
 197                                   "elm");
 198         else if (x + w >= ox + ow - 5)
 199           edje_object_signal_emit(VIEW(it), "elm,state,right_side",
 200                                   "elm");
 201         else
 202           {
 203              if ((wd->len_threshold) && (len > wd->len_threshold))
 204                edje_object_signal_emit(VIEW(it), "elm,state,center_small",
 205                                        "elm");
 206              else
 207                edje_object_signal_emit(VIEW(it), "elm,state,center",
 208                                        "elm");
 209           }
 210
 211         // if len is les that the limit len, skip anyway
 212         if (len <= wd->len_side)
 213           continue;
 214
 215         steps = len - wd->len_side + 1;
 216         mid = x + w / 2;
 217         if (mid <= ox + ow / 2)
 218           diff = (ox + ow / 2) - mid;
 219         else
 220           diff = mid - (ox + ow / 2);
 221
 222         length = len - (int)(diff * steps / (ow / 3));
 223         length = MAX(length, wd->len_side);
 224         // limit string len to "length" ut8f chars
 225         length = _check_letter(it->label, length);
 226         // cut it off at byte mark returned form _check_letter
 227         strncpy(buf, it->label, length);
 228         buf[length] = '\0';
 229         edje_object_part_text_escaped_set(VIEW(it), "elm.text", buf);
 230      }
 231
 232    if (wd->check_idler)
 233      ecore_idle_enterer_del(wd->check_idler);
 234    wd->check_idler = NULL;
 235    return EINA_FALSE;
 236 }
 237
 238 static Eina_Bool
 239 _item_del_pre_hook(Elm_Object_Item *it)
 240 {
 241    Elm_Diskselector_Item *item, *item2, *dit;
 242    Eina_List *l;
 243    int i = 0;
 244    Widget_Data *wd;
 245    item = (Elm_Diskselector_Item *)it;
 246    wd = elm_widget_data_get(WIDGET(item));
 247    if (!wd) return EINA_FALSE;
 248
 249    elm_box_unpack(wd->main_box, VIEW(item));
 250
 251    if (wd->round)
 252      wd->r_items = eina_list_remove(wd->r_items, item);
 253
 254    wd->items = eina_list_remove(wd->items, item);
 255
 256    if (wd->selected_item == item)
 257      {
 258         dit = (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
 259         if (dit != item)
 260           wd->selected_item = dit;
 261         else
 262           wd->selected_item = eina_list_nth(wd->items, 1);
 263
 264         _selected_item_indicate(wd->selected_item);
 265      }
 266
 267    _item_del(item);
 268    wd->item_count -= 1;
 269
 270    if (wd->round)
 271      {
 272         if (!wd->item_count)
 273           {
 274              evas_object_hide(wd->VIEW(first));
 275              evas_object_hide(wd->VIEW(second));
 276              evas_object_hide(wd->VIEW(last));
 277              evas_object_hide(wd->VIEW(s_last));
 278
 279              EINA_LIST_FOREACH(wd->under_items, l, item2)
 280                evas_object_hide(VIEW(item2));
 281
 282              EINA_LIST_FOREACH(wd->over_items, l, item2)
 283                evas_object_hide(VIEW(item2));
 284           }
 285         else
 286           {
 287              dit = eina_list_nth(wd->items, 0);
 288              if (dit)
 289                {
 290                   eina_stringshare_replace(&wd->first->label, dit->label);
 291                   edje_object_part_text_escaped_set(wd->VIEW(first), "elm.text",
 292                                             wd->first->label);
 293                }
 294              dit = eina_list_nth(wd->items, 1);
 295              if (dit)
 296                {
 297                   eina_stringshare_replace(&wd->second->label, dit->label);
 298                   edje_object_part_text_escaped_set(wd->VIEW(second), "elm.text",
 299                                             wd->second->label);
 300                }
 301              // if more than 3 itmes should be displayed
 302              for (i = 2; i < CEIL(wd->display_item_num); i++)
 303                {
 304                   dit = eina_list_nth(wd->items, i);
 305                   item2 = eina_list_nth(wd->over_items, i - 2);
 306                   eina_stringshare_replace(&item2->label, dit->label);
 307                   edje_object_part_text_escaped_set(VIEW(item2), "elm.text", item2->label);
 308                }
 309
 310              dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 1);
 311              if (dit)
 312                {
 313                   eina_stringshare_replace(&wd->last->label, dit->label);
 314                   edje_object_part_text_escaped_set(wd->VIEW(last), "elm.text",
 315                                             wd->last->label);
 316                }
 317              dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 2);
 318              if (dit)
 319                {
 320                   eina_stringshare_replace(&wd->s_last->label, dit->label);
 321                   edje_object_part_text_escaped_set(wd->VIEW(s_last), "elm.text",
 322                                             wd->s_last->label);
 323                }
 324              // if more than 3 itmes should be displayed
 325              for (i = 3; i <= CEIL(wd->display_item_num); i++)
 326                {
 327                   dit = eina_list_nth(wd->items, wd->item_count - i);
 328                   item2 = eina_list_nth(wd->under_items, i - 3);
 329                   eina_stringshare_replace(&item2->label, dit->label);
 330                   edje_object_part_text_escaped_set(VIEW(item2), "elm.text",
 331                                             item2->label);
 332                }
 333           }
 334      }
 335    wd->check_idler = ecore_idle_enterer_before_add(_check_string, wd);
 336    _sizing_eval(wd->self);
 337
 338    return EINA_TRUE;
 339 }
 340
 341 static Elm_Diskselector_Item *
 342 _item_new(Evas_Object *obj, Evas_Object *icon, const char *label, Evas_Smart_Cb func, const void *data)
 343 {
 344    Elm_Diskselector_Item *it;
 345    const char *style = elm_widget_style_get(obj);
 346
 347    it = elm_widget_item_new(obj, Elm_Diskselector_Item);
 348    if (!it) return NULL;
 349
 350    elm_widget_item_del_pre_hook_set(it, _item_del_pre_hook);
 351    elm_widget_item_text_set_hook_set(it, _item_text_set_hook);
 352    elm_widget_item_text_get_hook_set(it, _item_text_get_hook);
 353    elm_widget_item_content_set_hook_set(it, _item_content_set_hook);
 354    elm_widget_item_content_get_hook_set(it, _item_content_get_hook);
 355
 356    it->label = eina_stringshare_add(label);
 357    it->icon = icon;
 358    it->func = func;
 359    it->base.data = data;
 360    VIEW(it) = edje_object_add(evas_object_evas_get(obj));
 361    _elm_theme_object_set(obj, VIEW(it), "diskselector", "item", style);
 362    evas_object_size_hint_weight_set(VIEW(it), EVAS_HINT_EXPAND,
 363                                     EVAS_HINT_EXPAND);
 364    evas_object_size_hint_align_set(VIEW(it), EVAS_HINT_FILL,
 365                                    EVAS_HINT_FILL);
 366    evas_object_show(VIEW(it));
 367
 368    if (it->label)
 369      {
 370         edje_object_part_text_escaped_set(VIEW(it), "elm.text", it->label);
 371         edje_object_signal_callback_add(VIEW(it), "elm,action,click", "", _item_click_cb, it);
 372      }
 373    if (it->icon)
 374      {
 375         evas_object_size_hint_min_set(it->icon, 24, 24);
 376         evas_object_size_hint_max_set(it->icon, 40, 40);
 377         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 378         evas_object_show(it->icon);
 379         elm_widget_sub_object_add(obj, it->icon);
 380      }
 381    return it;
 382 }
 383
 384 static void
 385 _theme_data_get(Widget_Data *wd)
 386 {
 387    const char* str;
 388    str = edje_object_data_get(wd->right_blank, "len_threshold");
 389    if (str) wd->len_threshold = MAX(0, atoi(str));
 390    else wd->len_threshold = 0;
 391
 392    if (!wd->display_item_num_by_api)
 393      {
 394         str = edje_object_data_get(wd->right_blank, "display_item_num");
 395         if (str) wd->display_item_num = MAX(DISPLAY_ITEM_NUM_MIN, atoi(str));
 396         else wd->display_item_num = DISPLAY_ITEM_NUM_MIN;
 397      }
 398
 399    str = edje_object_data_get(wd->right_blank, "min_width");
 400    if (str) wd->minw = MAX(-1, atoi(str));
 401    else wd->minw = -1;
 402
 403    str = edje_object_data_get(wd->right_blank, "min_height");
 404    if (str) wd->minh = MAX(-1, atoi(str));
 405    else wd->minh = -1;
 406 }
 407
 408 static void
 409 _del_hook(Evas_Object * obj)
 410 {
 411    Widget_Data *wd = elm_widget_data_get(obj);
 412    if (!wd) return;
 413    if (wd->idler)
 414      {
 415         ecore_idle_enterer_del(wd->idler);
 416         wd->idler = NULL;
 417      }
 418    free(wd);
 419 }
 420
 421 static void
 422 _del_pre_hook(Evas_Object * obj)
 423 {
 424    Elm_Diskselector_Item *it;
 425    Eina_List *l;
 426
 427    Widget_Data *wd = elm_widget_data_get(obj);
 428    if (!wd) return;
 429
 430    if (wd->left_blank)
 431      evas_object_del(wd->left_blank);
 432    if (wd->right_blank)
 433      evas_object_del(wd->right_blank);
 434    if (wd->last)
 435      {
 436         eina_stringshare_del(wd->last->label);
 437         evas_object_del(wd->VIEW(last));
 438         free(wd->last);
 439      }
 440    if (wd->s_last)
 441      {
 442         eina_stringshare_del(wd->s_last->label);
 443         evas_object_del(wd->VIEW(s_last));
 444         free(wd->s_last);
 445      }
 446    if (wd->second)
 447      {
 448         eina_stringshare_del(wd->second->label);
 449         evas_object_del(wd->VIEW(second));
 450         free(wd->second);
 451      }
 452    if (wd->first)
 453      {
 454         eina_stringshare_del(wd->first->label);
 455         evas_object_del(wd->VIEW(first));
 456         free(wd->first);
 457      }
 458
 459    EINA_LIST_FOREACH(wd->under_items, l, it)
 460      {
 461         if (it)
 462           {
 463              eina_stringshare_del(it->label);
 464              evas_object_del(VIEW(it));
 465              free(it);
 466           }
 467      }
 468
 469    EINA_LIST_FOREACH(wd->over_items, l, it)
 470    {
 471      if (it)
 472         {
 473            eina_stringshare_del(it->label);
 474            evas_object_del(VIEW(it));
 475            free(it);
 476         }
 477    }
 478
 479    EINA_LIST_FREE(wd->items, it)
 480      {
 481         _item_del(it);
 482         elm_widget_item_free(it);
 483      }
 484    eina_list_free(wd->r_items);
 485 }
 486
 487 static void
 488 _sizing_eval(Evas_Object * obj)
 489 {
 490    Widget_Data *wd = elm_widget_data_get(obj);
 491    if (!wd) return;
 492    _diskselector_object_resize(obj, NULL, obj, NULL);
 493 }
 494
 495 static void
 496 _theme_hook(Evas_Object * obj)
 497 {
 498    Eina_List *l;
 499    Elm_Diskselector_Item *it;
 500    Widget_Data *wd = elm_widget_data_get(obj);
 501    if (!wd) return;
 502
 503    if (wd->scroller)
 504      elm_smart_scroller_object_theme_set(obj, wd->scroller, "diskselector",
 505                                          "base", elm_widget_style_get(obj));
 506    if (wd->round)
 507      {
 508         EINA_LIST_FOREACH(wd->r_items, l, it)
 509           {
 510              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 511                                    elm_widget_style_get(obj));
 512              edje_object_part_text_escaped_set(VIEW(it), "elm.text", it->label);
 513           }
 514      }
 515    else
 516      {
 517         EINA_LIST_FOREACH(wd->items, l, it)
 518           {
 519              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 520                                    elm_widget_style_get(obj));
 521              edje_object_part_text_escaped_set(VIEW(it), "elm.text", it->label);
 522           }
 523      }
 524    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
 525                                    elm_widget_style_get(obj));
 526    _theme_data_get(wd);
 527    _sizing_eval(obj);
 528 }
 529
 530 static void
 531 _sub_del(void *data __UNUSED__, Evas_Object * obj, void *event_info)
 532 {
 533    Widget_Data *wd = elm_widget_data_get(obj);
 534    Evas_Object *sub = event_info;
 535    Elm_Diskselector_Item *it;
 536    const Eina_List *l;
 537
 538    if (!wd) return;
 539    if (!sub) abort();
 540    if (sub == wd->scroller)
 541      wd->scroller = NULL;
 542    else
 543      {
 544         EINA_LIST_FOREACH(wd->items, l, it)
 545           {
 546              if (sub == it->icon)
 547                {
 548                   it->icon = NULL;
 549                   _sizing_eval(obj);
 550                   break;
 551                }
 552           }
 553      }
 554 }
 555
 556 static void
 557 _select_item(Elm_Diskselector_Item *it)
 558 {
 559    if (!it) return;
 560    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 561    wd->selected_item = it;
 562    _selected_item_indicate(wd->selected_item);
 563    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 564    evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
 565 }
 566
 567 static void
 568 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 569 {
 570    Widget_Data *wd = elm_widget_data_get(obj);
 571    if (!wd)
 572      return;
 573
 574    if (elm_widget_focus_get(obj))
 575      {
 576         edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
 577         evas_object_focus_set(wd->self, EINA_TRUE);
 578      }
 579    else
 580      {
 581         edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
 582         evas_object_focus_set(wd->self, EINA_FALSE);
 583      }
 584 }
 585
 586 static Eina_Bool
 587 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
 588 {
 589    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
 590    Evas_Event_Key_Down *ev = event_info;
 591    Widget_Data *wd = elm_widget_data_get(obj);
 592    if (!wd) return EINA_FALSE;
 593    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
 594    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
 595
 596    Elm_Diskselector_Item *it = NULL;
 597    Eina_List *l;
 598
 599    if (!wd->selected_item) {
 600         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 601         return EINA_TRUE;
 602    }
 603
 604    if ((!strcmp(ev->keyname, "Left")) ||
 605        ((!strcmp(ev->keyname, "KP_Left")) && (!ev->string)) ||
 606        (!strcmp(ev->keyname, "Up"))  ||
 607        ((!strcmp(ev->keyname, "KP_Up")) && (!ev->string)))
 608      {
 609         l = wd->selected_item->node->prev;
 610         if ((!l) && (wd->round))
 611           l = eina_list_last(wd->items);
 612      }
 613    else if ((!strcmp(ev->keyname, "Right")) ||
 614             ((!strcmp(ev->keyname, "KP_Right")) && (!ev->string)) ||
 615             (!strcmp(ev->keyname, "Down")) ||
 616             ((!strcmp(ev->keyname, "KP_Down")) && (!ev->string)))
 617      {
 618         l = wd->selected_item->node->next;
 619         if ((!l) && (wd->round))
 620           l = wd->items;
 621      }
 622    else if ((!strcmp(ev->keyname, "Home")) ||
 623             ((!strcmp(ev->keyname, "KP_Home")) && (!ev->string)))
 624      l = wd->items;
 625    else if ((!strcmp(ev->keyname, "End")) ||
 626             ((!strcmp(ev->keyname, "KP_End")) && (!ev->string)))
 627      l = eina_list_last(wd->items);
 628    else return EINA_FALSE;
 629
 630    if (l)
 631      it = eina_list_data_get(l);
 632
 633    if (it)
 634      {
 635         wd->selected_item = it;
 636         if (!wd->idler)
 637           wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
 638      }
 639
 640    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 641    return EINA_TRUE;
 642 }
 643
 644 static void
 645 _selected_item_indicate(Elm_Diskselector_Item *it)
 646 {
 647    Elm_Diskselector_Item *item;
 648    Eina_List *l;
 649    Widget_Data *wd;
 650    wd = elm_widget_data_get(WIDGET(it));
 651
 652    if (!wd) return;
 653    if (!it->label) return;
 654
 655    EINA_LIST_FOREACH(wd->r_items, l, item)
 656      {
 657         if (item->label && !strcmp(item->label, it->label))
 658            edje_object_signal_emit(VIEW(item), "elm,state,selected", "elm");
 659         else
 660            edje_object_signal_emit(VIEW(item), "elm,state,default", "elm");
 661      }
 662 }
 663
 664 static void
 665 _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
 666                const char *emission __UNUSED__, const char *source __UNUSED__)
 667 {
 668    Elm_Diskselector_Item *it = data;
 669
 670    if (!it) return;
 671
 672    Widget_Data *wd;
 673    wd = elm_widget_data_get(WIDGET(it));
 674
 675    if (!wd) return;
 676
 677    if (wd->selected_item != it)
 678      {
 679         wd->selected_item = it;
 680         _selected_item_indicate(wd->selected_item);
 681      }
 682
 683    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 684 }
 685
 686 static void
 687 _scroller_move_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 688 {
 689    Evas_Coord x, y, w, h, bw;
 690    Widget_Data *wd = data;
 691
 692    _check_string(wd);
 693    elm_smart_scroller_child_pos_get(obj, &x, &y);
 694    elm_smart_scroller_child_viewport_size_get(obj, &w, &h);
 695    if (wd->round)
 696      {
 697         evas_object_geometry_get(wd->main_box, NULL, NULL, &bw, NULL);
 698         if (x > ((w / wd->display_item_num) * (wd->item_count + (wd->display_item_num % 2))))
 699            elm_smart_scroller_child_region_show(wd->scroller,
 700                                                x - ((w / wd->display_item_num) * wd->item_count),
 701                                                y, w, h);
 702         else if (x < 0)
 703            elm_smart_scroller_child_region_show(wd->scroller,
 704                                                x + ((w / wd->display_item_num) * wd->item_count),
 705                                                y, w, h);
 706      }
 707 }
 708
 709 static void
 710 _scroller_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 711 {
 712    Elm_Diskselector_Item *it;
 713    Widget_Data *wd = elm_widget_data_get(data);
 714    Evas_Coord x, w, ow;
 715    Eina_List *l, *list;
 716
 717    if (wd->idler) return;
 718
 719    if (!wd->round)
 720      list = wd->items;
 721    else
 722      list = wd->r_items;
 723
 724    evas_object_geometry_get(wd->scroller, NULL, NULL, &ow, NULL);
 725    EINA_LIST_FOREACH(list, l, it)
 726      {
 727         evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
 728         if (abs((int)(ow / 2 - (int)(x + w / 2))) < 10) break;
 729      }
 730
 731    if (!it) return;
 732    _select_item(it);
 733    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_STOP, it);
 734 }
 735
 736 static void
 737 _scroller_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 738 {
 739    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_START,
 740                                    elm_diskselector_selected_item_get(data));
 741 }
 742
 743 static void
 744 _drag_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 745 {
 746    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_START,
 747                                    elm_diskselector_selected_item_get(data));
 748 }
 749
 750 static void
 751 _drag_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 752 {
 753    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_STOP,
 754                                    elm_diskselector_selected_item_get(data));
 755 }
 756
 757 static Eina_Bool
 758 _move_scroller(void *data)
 759 {
 760    Evas_Object *obj = data;
 761    Widget_Data *wd;
 762    Eina_List *list, *l;
 763    Elm_Diskselector_Item *dit;
 764    Evas_Coord y, w, h;
 765    int i;
 766
 767    wd = elm_widget_data_get(obj);
 768    if (!wd) return EINA_FALSE;
 769
 770    if (!wd->round)
 771      {
 772         i = 0;
 773         list = wd->items;
 774      }
 775    else
 776      {
 777         i = 1;
 778         list = wd->r_items;
 779      }
 780
 781    EINA_LIST_FOREACH(list, l, dit)
 782      {
 783         if (wd->selected_item == dit)
 784            break;
 785         i++;
 786      }
 787
 788    if (wd->round) i -= CEIL(wd->display_item_num);
 789
 790    if (!dit)
 791      {
 792         wd->selected_item =
 793            (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
 794         return EINA_FALSE;
 795      }
 796
 797    evas_object_geometry_get(wd->scroller, NULL, &y, &w, &h);
 798    elm_smart_scroller_child_region_show(wd->scroller, w / wd->display_item_num * i, y, w, h);
 799    _select_item(dit);
 800    if (wd->idler)
 801      {
 802         ecore_idle_enterer_del(wd->idler);
 803         wd->idler = NULL;
 804      }
 805    wd->init = EINA_TRUE;
 806    _check_string(wd);
 807
 808    return EINA_TRUE;
 809 }
 810
 811 static void
 812 _round_item_del(Widget_Data *wd, Elm_Diskselector_Item *it)
 813 {
 814    if (!it) return;
 815    elm_box_unpack(wd->main_box, VIEW(it));
 816    wd->r_items = eina_list_remove(wd->r_items, it);
 817    eina_stringshare_del(it->label);
 818    elm_widget_item_free(it);
 819 }
 820
 821 static void
 822 _round_items_del(Widget_Data *wd)
 823 {
 824    Eina_List *l;
 825    Elm_Diskselector_Item * it;
 826
 827    _round_item_del(wd, wd->last);
 828    wd->last = NULL;
 829    _round_item_del(wd, wd->s_last);
 830    wd->s_last = NULL;
 831    _round_item_del(wd, wd->second);
 832    wd->second = NULL;
 833    _round_item_del(wd, wd->first);
 834    wd->first = NULL;
 835
 836    EINA_LIST_FOREACH(wd->under_items, l, it)
 837      {
 838         _round_item_del(wd, it);
 839      }
 840    wd->under_items = eina_list_free(wd->under_items);
 841
 842    EINA_LIST_FOREACH(wd->over_items, l, it)
 843      {
 844         _round_item_del(wd, it);
 845      }
 846    wd->over_items = eina_list_free(wd->over_items);
 847 }
 848
 849 static void
 850 _round_items_add(Widget_Data *wd)
 851 {
 852    Elm_Diskselector_Item *dit;
 853    Elm_Diskselector_Item *it;
 854    Elm_Diskselector_Item *temp_it;
 855    int i = 0;
 856    dit = it = eina_list_nth(wd->items, 0);
 857    if (!dit) return;
 858
 859    if (!wd->first)
 860      {
 861         wd->first = _item_new(WIDGET(it), it->icon, it->label, it->func,
 862                               it->base.data);
 863         wd->first->node = it->node;
 864         wd->r_items = eina_list_append(wd->r_items, wd->first);
 865      }
 866
 867    it = eina_list_nth(wd->items, 1);
 868    if (!it)
 869      it = dit;
 870    if (!wd->second)
 871      {
 872         wd->second = _item_new(WIDGET(it), it->icon, it->label, it->func,
 873                                it->base.data);
 874         wd->second->node = it->node;
 875         wd->r_items = eina_list_append(wd->r_items, wd->second);
 876      }
 877
 878    // if more than 3 itmes should be displayed
 879    for (i = 2; i < CEIL(wd->display_item_num); i++)
 880      {
 881         it = eina_list_nth(wd->items, i);
 882         if (!it) it = dit;
 883         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 884         wd->over_items = eina_list_append(wd->over_items, temp_it);
 885         wd->r_items = eina_list_append(wd->r_items, temp_it);
 886      }
 887
 888    it = eina_list_nth(wd->items, wd->item_count - 1);
 889    if (!it)
 890      it = dit;
 891    if (!wd->last)
 892      {
 893         wd->last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 894                              it->base.data);
 895         wd->last->node = it->node;
 896         wd->r_items = eina_list_prepend(wd->r_items, wd->last);
 897      }
 898
 899    it = eina_list_nth(wd->items, wd->item_count - 2);
 900    if (!it)
 901      it = dit;
 902    if (!wd->s_last)
 903      {
 904         wd->s_last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 905                                it->base.data);
 906         wd->s_last->node = it->node;
 907         wd->r_items = eina_list_prepend(wd->r_items, wd->s_last);
 908      }
 909
 910    // if more than 3 itmes should be displayed
 911    for (i = 3; i <= CEIL(wd->display_item_num); i++)
 912      {
 913         it = eina_list_nth(wd->items, wd->item_count - i);
 914         if (!it) it = dit;
 915         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 916         wd->under_items = eina_list_append(wd->under_items, temp_it);
 917         wd->r_items = eina_list_prepend(wd->r_items, temp_it);
 918      }
 919 }
 920
 921 static void
 922 _item_icon_set(Elm_Diskselector_Item *it, Evas_Object *icon)
 923 {
 924    if (it->icon == icon) return;
 925    if (it->icon) evas_object_del(it->icon);
 926    it->icon = icon;
 927    if (VIEW(it))
 928      {
 929         evas_object_size_hint_min_set(it->icon, 24, 24);
 930         evas_object_size_hint_max_set(it->icon, 40, 40);
 931         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 932         evas_object_show(it->icon);
 933         elm_widget_sub_object_add(WIDGET(it), it->icon);
 934      }
 935 }
 936
 937 static void
 938 _check_identical_item(Elm_Diskselector_Item *it, Evas_Object *icon)
 939 {
 940    Widget_Data *wd;
 941    Elm_Diskselector_Item *dit;
 942    Eina_List *l;
 943    int idx = 0;
 944    int ic = 0;
 945    int ac = 0;
 946
 947    wd = elm_widget_data_get(WIDGET(it));
 948    if (!wd) return;
 949
 950    if (wd->round)
 951      {
 952         // Get index from indentical item from round items
 953         EINA_LIST_FOREACH(wd->r_items, l, dit)
 954           {
 955              if (it == dit) break;
 956              idx++;
 957           }
 958
 959         // No item to match
 960         ic = eina_list_count(wd->r_items);
 961         if (idx >= ic) return;
 962         dit = NULL;
 963
 964         // Number of added items: CEIL(wd->display_item_num)
 965         ac = CEIL(wd->display_item_num);
 966
 967         if (((idx >= 0) && (idx < ac)) ||
 968             ((idx >= ac) && (idx < (2 * ac))))
 969           {
 970               // Selected item: under, low region
 971              dit = eina_list_nth(wd->r_items,
 972                                  idx + ic - (2 * ac));
 973           }
 974         else if (((idx >= (ic - ac)) && (idx < ic)) ||
 975                  ((idx >= (ic - (2 * ac))) && (idx < ic - ac)))
 976           {
 977               // Selected item: over, high region
 978               dit = eina_list_nth(wd->r_items,
 979                                   idx - ic + (2 * ac));
 980           }
 981
 982         if (dit) _item_icon_set(dit, icon);
 983         _sizing_eval(wd->self);
 984      }
 985 }
 986
 987 static void
 988 _item_text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 989 {
 990    Elm_Diskselector_Item *item;
 991    if (part && strcmp(part, "default")) return;
 992    item = (Elm_Diskselector_Item *)it;
 993    eina_stringshare_replace(&item->label, label);
 994    edje_object_part_text_escaped_set(VIEW(item), "elm.text", item->label);
 995 }
 996
 997 static const char *
 998 _item_text_get_hook(const Elm_Object_Item *it, const char *part)
 999 {
1000    if (part && strcmp(part, "default")) return NULL;
1001    return ((Elm_Diskselector_Item *)it)->label;
1002 }
1003
1004 static void
1005 _item_content_set_hook(Elm_Object_Item *it,
1006                        const char *part,
1007                        Evas_Object *content)
1008 {
1009    if (part && strcmp(part, "icon")) return;
1010    _item_icon_set((Elm_Diskselector_Item *)it, content);
1011    _check_identical_item((Elm_Diskselector_Item *)it, content);
1012 }
1013
1014 static Evas_Object *
1015 _item_content_get_hook(const Elm_Object_Item *it, const char *part)
1016 {
1017    if (part && strcmp(part, "icon")) return NULL;
1018    return ((Elm_Diskselector_Item *)it)->icon;
1019 }
1020
1021
1022 EAPI Evas_Object *
1023 elm_diskselector_add(Evas_Object *parent)
1024 {
1025    Evas *e;
1026    Evas_Object *obj;
1027    Widget_Data *wd;
1028
1029    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
1030
1031    ELM_SET_WIDTYPE(widtype, "diskselector");
1032    elm_widget_type_set(obj, "diskselector");
1033    elm_widget_sub_object_add(parent, obj);
1034    elm_widget_data_set(obj, wd);
1035    elm_widget_del_hook_set(obj, _del_hook);
1036    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
1037    elm_widget_theme_hook_set(obj, _theme_hook);
1038    elm_widget_can_focus_set(obj, EINA_TRUE);
1039    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
1040    elm_widget_event_hook_set(obj, _event_hook);
1041
1042    wd->self = obj;
1043    wd->item_count = 0;
1044    wd->round = EINA_FALSE;
1045    wd->init = EINA_FALSE;
1046    wd->len_side = 3;
1047    wd->display_item_num_by_api = EINA_FALSE;
1048
1049    wd->scroller = elm_smart_scroller_add(e);
1050    elm_smart_scroller_widget_set(wd->scroller, obj);
1051    _theme_hook(obj);
1052    elm_widget_resize_object_set(obj, wd->scroller);
1053    elm_smart_scroller_policy_set(wd->scroller, ELM_SMART_SCROLLER_POLICY_OFF,
1054                                  ELM_SMART_SCROLLER_POLICY_OFF);
1055    elm_smart_scroller_bounce_allow_set(wd->scroller, EINA_TRUE, EINA_FALSE);
1056    evas_object_smart_callback_add(wd->scroller, "scroll", _scroller_move_cb,
1057                                   wd);
1058    evas_object_smart_callback_add(wd->scroller, "animate,stop",
1059                                   _scroller_stop_cb, obj);
1060    evas_object_smart_callback_add(wd->scroller, "animate,start",
1061                                   _scroller_start_cb, obj);
1062    evas_object_smart_callback_add(wd->scroller, "drag,stop",
1063                                   _drag_stop_cb, obj);
1064    evas_object_smart_callback_add(wd->scroller, "drag,start",
1065                                   _drag_start_cb, obj);
1066
1067    _elm_theme_object_set(obj, wd->scroller, "diskselector", "base",
1068                          "default");
1069    evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
1070                                   _diskselector_object_resize, obj);
1071
1072    wd->main_box = elm_box_add(parent);
1073    elm_box_horizontal_set(wd->main_box, EINA_TRUE);
1074    elm_box_homogeneous_set(wd->main_box, EINA_TRUE);
1075    evas_object_size_hint_weight_set(wd->main_box, EVAS_HINT_EXPAND,
1076                                     EVAS_HINT_EXPAND);
1077    evas_object_size_hint_align_set(wd->main_box, EVAS_HINT_FILL,
1078                                    EVAS_HINT_FILL);
1079    _elm_theme_object_set(obj, wd->main_box, "diskselector", "base",
1080                          "default");
1081    elm_widget_sub_object_add(obj, wd->main_box);
1082
1083    elm_smart_scroller_child_set(wd->scroller, wd->main_box);
1084
1085    wd->left_blank = edje_object_add(evas_object_evas_get(obj));
1086    _elm_theme_object_set(obj, wd->left_blank, "diskselector", "item",
1087                          "default");
1088    evas_object_size_hint_weight_set(wd->left_blank, EVAS_HINT_EXPAND,
1089                                     EVAS_HINT_EXPAND);
1090    evas_object_size_hint_align_set(wd->left_blank, EVAS_HINT_FILL,
1091                                    EVAS_HINT_FILL);
1092    elm_box_pack_end(wd->main_box, wd->left_blank);
1093    evas_object_show(wd->left_blank);
1094
1095    wd->right_blank = edje_object_add(evas_object_evas_get(obj));
1096    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
1097                          "default");
1098    evas_object_size_hint_weight_set(wd->right_blank, EVAS_HINT_EXPAND,
1099                                     EVAS_HINT_EXPAND);
1100    evas_object_size_hint_align_set(wd->right_blank, EVAS_HINT_FILL,
1101                                    EVAS_HINT_FILL);
1102    elm_box_pack_end(wd->main_box, wd->right_blank);
1103    evas_object_show(wd->right_blank);
1104
1105    _theme_data_get(wd);
1106
1107    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
1108    evas_object_smart_callbacks_descriptions_set(obj, _signals);
1109    _sizing_eval(obj);
1110    return obj;
1111 }
1112
1113 EAPI Eina_Bool
1114 elm_diskselector_round_enabled_get(const Evas_Object *obj)
1115 {
1116    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1117    Widget_Data *wd = elm_widget_data_get(obj);
1118    if (!wd) return EINA_FALSE;
1119    return wd->round;
1120 }
1121
1122 EAPI void
1123 elm_diskselector_round_enabled_set(Evas_Object * obj, Eina_Bool enabled)
1124 {
1125    Eina_List *elist;
1126    Elm_Diskselector_Item *it;
1127
1128    ELM_CHECK_WIDTYPE(obj, widtype);
1129    Widget_Data *wd = elm_widget_data_get(obj);
1130    if (!wd) return;
1131
1132    if (wd->round == enabled)
1133      return;
1134
1135    wd->round = !!enabled;
1136    if (enabled)
1137      {
1138         wd->r_items = eina_list_clone(wd->items);
1139         elm_box_unpack(wd->main_box, wd->left_blank);
1140         evas_object_hide(wd->left_blank);
1141         elm_box_unpack(wd->main_box, wd->right_blank);
1142         evas_object_hide(wd->right_blank);
1143         if (!wd->items)
1144           return;
1145
1146         _round_items_add(wd);
1147
1148         if (wd->last)
1149           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1150         if (wd->s_last)
1151           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1152
1153         // if more than 3 items should be displayed
1154         EINA_LIST_FOREACH(wd->under_items, elist, it)
1155            elm_box_pack_start(wd->main_box, VIEW(it));
1156
1157         if (wd->first)
1158           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1159         if (wd->second)
1160           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1161
1162         // if more than 3 items should be displayed
1163         EINA_LIST_FOREACH(wd->over_items, elist, it)
1164            elm_box_pack_end(wd->main_box, VIEW(it));
1165      }
1166    else
1167      {
1168         _round_items_del(wd);
1169         elm_box_pack_start(wd->main_box, wd->left_blank);
1170         elm_box_pack_end(wd->main_box, wd->right_blank);
1171         eina_list_free(wd->r_items);
1172         wd->r_items = NULL;
1173      }
1174
1175    _selected_item_indicate(wd->selected_item);
1176    _sizing_eval(obj);
1177 }
1178
1179 EAPI int
1180 elm_diskselector_side_text_max_length_get(const Evas_Object *obj)
1181 {
1182    ELM_CHECK_WIDTYPE(obj, widtype) 0;
1183    Widget_Data *wd = elm_widget_data_get(obj);
1184    if (!wd) return 0;
1185    return wd->len_side;
1186 }
1187
1188 EAPI void
1189 elm_diskselector_side_text_max_length_set(Evas_Object *obj, int len)
1190 {
1191    ELM_CHECK_WIDTYPE(obj, widtype);
1192    Widget_Data *wd = elm_widget_data_get(obj);
1193    if (!wd) return;
1194    wd->len_side = len;
1195 }
1196
1197 EAPI void
1198 elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
1199 {
1200    ELM_CHECK_WIDTYPE(obj, widtype);
1201    Widget_Data *wd = elm_widget_data_get(obj);
1202    if (!wd) return;
1203    if (wd->scroller)
1204      elm_smart_scroller_bounce_allow_set(wd->scroller, h_bounce, v_bounce);
1205 }
1206
1207 EAPI void
1208 elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
1209 {
1210    ELM_CHECK_WIDTYPE(obj, widtype);
1211    Widget_Data *wd = elm_widget_data_get(obj);
1212    if (!wd) return;
1213    elm_smart_scroller_bounce_allow_get(wd->scroller, h_bounce, v_bounce);
1214 }
1215
1216 EAPI void
1217 elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
1218 {
1219    ELM_CHECK_WIDTYPE(obj, widtype);
1220    Elm_Smart_Scroller_Policy s_policy_h, s_policy_v;
1221    Widget_Data *wd = elm_widget_data_get(obj);
1222    if ((!wd) || (!wd->scroller)) return;
1223    elm_smart_scroller_policy_get(wd->scroller, &s_policy_h, &s_policy_v);
1224    *policy_h = (Elm_Scroller_Policy) s_policy_h;
1225    *policy_v = (Elm_Scroller_Policy) s_policy_v;
1226 }
1227
1228 EAPI void
1229 elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
1230 {
1231    ELM_CHECK_WIDTYPE(obj, widtype);
1232    Widget_Data *wd = elm_widget_data_get(obj);
1233    if ((!wd) || (!wd->scroller)) return;
1234    if ((policy_h >= ELM_SCROLLER_POLICY_LAST) ||
1235        (policy_v >= ELM_SCROLLER_POLICY_LAST))
1236      return;
1237    elm_smart_scroller_policy_set(wd->scroller, policy_h, policy_v);
1238 }
1239
1240 EAPI void
1241 elm_diskselector_clear(Evas_Object *obj)
1242 {
1243    ELM_CHECK_WIDTYPE(obj, widtype);
1244    Widget_Data *wd = elm_widget_data_get(obj);
1245    Elm_Diskselector_Item *it;
1246
1247    if (!wd) return;
1248    if (!wd->items) return;
1249
1250    wd->selected_item = NULL;
1251    EINA_LIST_FREE(wd->items, it)
1252      {
1253         _item_del(it);
1254         elm_widget_item_free(it);
1255      }
1256    _round_items_del(wd);
1257    _sizing_eval(obj);
1258 }
1259
1260 EAPI const Eina_List *
1261 elm_diskselector_items_get(const Evas_Object *obj)
1262 {
1263    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1264    Widget_Data *wd = elm_widget_data_get(obj);
1265    if (!wd) return NULL;
1266    return wd->items;
1267 }
1268
1269 EAPI Elm_Object_Item *
1270 elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data)
1271 {
1272    Elm_Diskselector_Item *it;
1273    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1274    Widget_Data *wd = elm_widget_data_get(obj);
1275    if (!wd) return NULL;
1276
1277    it = _item_new(obj, icon, label, func, data);
1278    wd->items = eina_list_append(wd->items, it);
1279    it->node = eina_list_last(wd->items);
1280    wd->item_count++;
1281    if (wd->round)
1282      {
1283         _round_items_del(wd);
1284         wd->r_items = eina_list_append(wd->r_items, it);
1285         _round_items_add(wd);
1286         if (wd->last)
1287           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1288         if (wd->s_last)
1289           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1290         elm_box_pack_end(wd->main_box, VIEW(it));
1291         if (wd->first)
1292           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1293         if (wd->second)
1294           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1295      }
1296    else
1297      {
1298         elm_box_unpack(wd->main_box, wd->right_blank);
1299         elm_box_pack_end(wd->main_box, VIEW(it));
1300         elm_box_pack_end(wd->main_box, wd->right_blank);
1301      }
1302    if (!wd->selected_item)
1303      wd->selected_item = it;
1304    if (!wd->idler)
1305      wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
1306    _sizing_eval(obj);
1307    return (Elm_Object_Item *)it;
1308 }
1309
1310 EAPI Elm_Object_Item *
1311 elm_diskselector_selected_item_get(const Evas_Object *obj)
1312 {
1313    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1314    Widget_Data *wd = elm_widget_data_get(obj);
1315    if (!wd) return NULL;
1316    return (Elm_Object_Item *) wd->selected_item;
1317 }
1318
1319 EAPI void
1320 elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
1321 {
1322    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
1323    Widget_Data *wd;
1324    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1325    wd = elm_widget_data_get(WIDGET(item));
1326    if (!wd) return;
1327
1328    if ((wd->selected_item == item) && (selected))
1329      return;
1330
1331    if ((wd->selected_item == item) && (!selected))
1332      wd->selected_item = eina_list_data_get(wd->items);
1333    else
1334      {
1335         wd->selected_item = item;
1336         _selected_item_indicate(wd->selected_item);
1337      }
1338
1339    if (!wd->idler)
1340      wd->idler = ecore_idle_enterer_before_add(_move_scroller, WIDGET(item));
1341 }
1342
1343 EAPI Eina_Bool
1344 elm_diskselector_item_selected_get(const Elm_Object_Item *it)
1345 {
1346    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
1347    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
1348    if (!wd) return EINA_FALSE;
1349    return (wd->selected_item == ((Elm_Diskselector_Item *)it));
1350 }
1351
1352 EAPI Elm_Object_Item *
1353 elm_diskselector_item_prev_get(const Elm_Object_Item *it)
1354 {
1355    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1356    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1357    if (item->node->prev) return item->node->prev->data;
1358    else return NULL;
1359 }
1360
1361 EAPI Elm_Object_Item *
1362 elm_diskselector_item_next_get(const Elm_Object_Item *it)
1363 {
1364    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1365    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1366    if (item->node->next) return item->node->next->data;
1367    else return NULL;
1368 }
1369
1370 EAPI Elm_Object_Item *
1371 elm_diskselector_first_item_get(const Evas_Object *obj)
1372 {
1373    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1374    Widget_Data *wd = elm_widget_data_get(obj);
1375    if (!wd || !wd->items) return NULL;
1376    return eina_list_data_get(wd->items);
1377 }
1378
1379 EAPI Elm_Object_Item *
1380 elm_diskselector_last_item_get(const Evas_Object *obj)
1381 {
1382    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1383    Widget_Data *wd = elm_widget_data_get(obj);
1384    if (!wd || !wd->items) return NULL;
1385    return eina_list_data_get(eina_list_last(wd->items));
1386 }
1387
1388 EAPI void
1389 elm_diskselector_display_item_num_set(Evas_Object *obj, int num)
1390 {
1391    ELM_CHECK_WIDTYPE(obj, widtype);
1392    Widget_Data *wd = elm_widget_data_get(obj);
1393    if (!wd) return;
1394    if (num < DISPLAY_ITEM_NUM_MIN) num = DISPLAY_ITEM_NUM_MIN;
1395    wd->display_item_num = num;
1396    wd->display_item_num_by_api = EINA_TRUE;
1397 }
1398
1399 EAPI int
1400 elm_diskselector_display_item_num_get(const Evas_Object *item)
1401 {
1402    ELM_CHECK_WIDTYPE(item, widtype) (-1);
1403    Widget_Data *wd = elm_widget_data_get(item);
1404    if (!wd) return -1;
1405    return wd->display_item_num;
1406 }