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_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_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_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_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_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_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_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_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    Evas_Object *parent;
 389    str = edje_object_data_get(wd->right_blank, "len_threshold");
 390    if (str) wd->len_threshold = MAX(0, atoi(str));
 391    else wd->len_threshold = 0;
 392
 393    if (!wd->display_item_num_by_api)
 394      {
 395         str = edje_object_data_get(wd->right_blank, "display_item_num");
 396         if (str) wd->display_item_num = MAX(DISPLAY_ITEM_NUM_MIN, atoi(str));
 397         else wd->display_item_num = DISPLAY_ITEM_NUM_MIN;
 398      }
 399
 400    str = edje_object_data_get(wd->right_blank, "min_width");
 401    if (str) wd->minw = MAX(-1, atoi(str)) * elm_scale_get();
 402    else
 403      {
 404         parent = elm_widget_parent_widget_get(wd->self);
 405         if (!parent) wd->minw = -1;
 406         else evas_object_geometry_get(parent, NULL, NULL, &wd->minw, NULL);
 407      }
 408
 409    str = edje_object_data_get(wd->right_blank, "min_height");
 410    if (str) wd->minh = MAX(-1, atoi(str)) * elm_scale_get();
 411    else wd->minh = -1;
 412 }
 413
 414 static void
 415 _del_hook(Evas_Object * obj)
 416 {
 417    Widget_Data *wd = elm_widget_data_get(obj);
 418    if (!wd) return;
 419    free(wd);
 420 }
 421
 422 static void
 423 _del_pre_hook(Evas_Object * obj)
 424 {
 425    Elm_Diskselector_Item *it;
 426    Eina_List *l;
 427
 428    Widget_Data *wd = elm_widget_data_get(obj);
 429    if (!wd) return;
 430
 431    if (wd->left_blank)
 432      evas_object_del(wd->left_blank);
 433    if (wd->right_blank)
 434      evas_object_del(wd->right_blank);
 435    if (wd->last)
 436      {
 437         eina_stringshare_del(wd->last->label);
 438         evas_object_del(wd->VIEW(last));
 439         free(wd->last);
 440      }
 441    if (wd->s_last)
 442      {
 443         eina_stringshare_del(wd->s_last->label);
 444         evas_object_del(wd->VIEW(s_last));
 445         free(wd->s_last);
 446      }
 447    if (wd->second)
 448      {
 449         eina_stringshare_del(wd->second->label);
 450         evas_object_del(wd->VIEW(second));
 451         free(wd->second);
 452      }
 453    if (wd->first)
 454      {
 455         eina_stringshare_del(wd->first->label);
 456         evas_object_del(wd->VIEW(first));
 457         free(wd->first);
 458      }
 459
 460    EINA_LIST_FOREACH(wd->under_items, l, it)
 461      {
 462         if (it)
 463           {
 464              eina_stringshare_del(it->label);
 465              evas_object_del(VIEW(it));
 466              free(it);
 467           }
 468      }
 469
 470    EINA_LIST_FOREACH(wd->over_items, l, it)
 471    {
 472      if (it)
 473         {
 474            eina_stringshare_del(it->label);
 475            evas_object_del(VIEW(it));
 476            free(it);
 477         }
 478    }
 479
 480    EINA_LIST_FREE(wd->items, it)
 481      {
 482         _item_del(it);
 483         elm_widget_item_free(it);
 484      }
 485    eina_list_free(wd->r_items);
 486 }
 487
 488 static void
 489 _sizing_eval(Evas_Object * obj)
 490 {
 491    Widget_Data *wd = elm_widget_data_get(obj);
 492    if (!wd) return;
 493    _diskselector_object_resize(obj, NULL, obj, NULL);
 494 }
 495
 496 static void
 497 _theme_hook(Evas_Object * obj)
 498 {
 499    Eina_List *l;
 500    Elm_Diskselector_Item *it;
 501    Widget_Data *wd = elm_widget_data_get(obj);
 502    if (!wd) return;
 503
 504    if (wd->scroller)
 505      elm_smart_scroller_object_theme_set(obj, wd->scroller, "diskselector",
 506                                          "base", elm_widget_style_get(obj));
 507    if (wd->round)
 508      {
 509         EINA_LIST_FOREACH(wd->r_items, l, it)
 510           {
 511              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 512                                    elm_widget_style_get(obj));
 513              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 514           }
 515      }
 516    else
 517      {
 518         EINA_LIST_FOREACH(wd->items, l, it)
 519           {
 520              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 521                                    elm_widget_style_get(obj));
 522              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 523           }
 524      }
 525    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
 526                                    elm_widget_style_get(obj));
 527    _theme_data_get(wd);
 528    _sizing_eval(obj);
 529 }
 530
 531 static void
 532 _sub_del(void *data __UNUSED__, Evas_Object * obj, void *event_info)
 533 {
 534    Widget_Data *wd = elm_widget_data_get(obj);
 535    Evas_Object *sub = event_info;
 536    Elm_Diskselector_Item *it;
 537    const Eina_List *l;
 538
 539    if (!wd) return;
 540    if (!sub) abort();
 541    if (sub == wd->scroller)
 542      wd->scroller = NULL;
 543    else
 544      {
 545         EINA_LIST_FOREACH(wd->items, l, it)
 546           {
 547              if (sub == it->icon)
 548                {
 549                   it->icon = NULL;
 550                   _sizing_eval(obj);
 551                   break;
 552                }
 553           }
 554      }
 555 }
 556
 557 static void
 558 _select_item(Elm_Diskselector_Item *it)
 559 {
 560    if (!it) return;
 561    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 562    wd->selected_item = it;
 563    _selected_item_indicate(wd->selected_item);
 564    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 565    evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
 566 }
 567
 568 static void
 569 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 570 {
 571    Widget_Data *wd = elm_widget_data_get(obj);
 572    if (!wd)
 573      return;
 574
 575    if (elm_widget_focus_get(obj))
 576      {
 577         edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
 578         evas_object_focus_set(wd->self, EINA_TRUE);
 579      }
 580    else
 581      {
 582         edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
 583         evas_object_focus_set(wd->self, EINA_FALSE);
 584      }
 585 }
 586
 587 static Eina_Bool
 588 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
 589 {
 590    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
 591    Evas_Event_Key_Down *ev = event_info;
 592    Widget_Data *wd = elm_widget_data_get(obj);
 593    if (!wd) return EINA_FALSE;
 594    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
 595    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
 596
 597    Elm_Diskselector_Item *it = NULL;
 598    Eina_List *l;
 599
 600    if (!wd->selected_item) {
 601         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 602         return EINA_TRUE;
 603    }
 604
 605    if ((!strcmp(ev->keyname, "Left")) ||
 606        ((!strcmp(ev->keyname, "KP_Left")) && (!ev->string)) ||
 607        (!strcmp(ev->keyname, "Up"))  ||
 608        ((!strcmp(ev->keyname, "KP_Up")) && (!ev->string)))
 609      {
 610         l = wd->selected_item->node->prev;
 611         if ((!l) && (wd->round))
 612           l = eina_list_last(wd->items);
 613      }
 614    else if ((!strcmp(ev->keyname, "Right")) ||
 615             ((!strcmp(ev->keyname, "KP_Right")) && (!ev->string)) ||
 616             (!strcmp(ev->keyname, "Down")) ||
 617             ((!strcmp(ev->keyname, "KP_Down")) && (!ev->string)))
 618      {
 619         l = wd->selected_item->node->next;
 620         if ((!l) && (wd->round))
 621           l = wd->items;
 622      }
 623    else if ((!strcmp(ev->keyname, "Home")) ||
 624             ((!strcmp(ev->keyname, "KP_Home")) && (!ev->string)))
 625      l = wd->items;
 626    else if ((!strcmp(ev->keyname, "End")) ||
 627             ((!strcmp(ev->keyname, "KP_End")) && (!ev->string)))
 628      l = eina_list_last(wd->items);
 629    else return EINA_FALSE;
 630
 631    if (l)
 632      it = eina_list_data_get(l);
 633
 634    if (it)
 635      {
 636         wd->selected_item = it;
 637         if (!wd->idler)
 638           wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
 639      }
 640
 641    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 642    return EINA_TRUE;
 643 }
 644
 645 static void
 646 _selected_item_indicate(Elm_Diskselector_Item *it)
 647 {
 648    Elm_Diskselector_Item *item;
 649    Eina_List *l;
 650    Widget_Data *wd;
 651    wd = elm_widget_data_get(WIDGET(it));
 652
 653    if (!wd) return;
 654
 655    EINA_LIST_FOREACH(wd->r_items, l, item)
 656      {
 657         if (!strcmp(item->label, it->label)) edje_object_signal_emit(VIEW(item), "elm,state,selected", "elm");
 658         else
 659            edje_object_signal_emit(VIEW(item), "elm,state,default", "elm");
 660      }
 661 }
 662
 663 static void
 664 _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
 665                const char *emission __UNUSED__, const char *source __UNUSED__)
 666 {
 667    Elm_Diskselector_Item *it = data;
 668
 669    if (!it) return;
 670
 671    Widget_Data *wd;
 672    wd = elm_widget_data_get(WIDGET(it));
 673
 674    if (!wd) return;
 675
 676    if (wd->selected_item != it)
 677      {
 678         wd->selected_item = it;
 679         _selected_item_indicate(wd->selected_item);
 680      }
 681
 682    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 683 }
 684
 685 static void
 686 _scroller_move_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 687 {
 688    Evas_Coord x, y, w, h, bw;
 689    Widget_Data *wd = data;
 690
 691    _check_string(wd);
 692    elm_smart_scroller_child_pos_get(obj, &x, &y);
 693    elm_smart_scroller_child_viewport_size_get(obj, &w, &h);
 694    if (wd->round)
 695      {
 696         evas_object_geometry_get(wd->main_box, NULL, NULL, &bw, NULL);
 697         if (x > ((w / wd->display_item_num) * (wd->item_count + (wd->display_item_num % 2))))
 698            elm_smart_scroller_child_region_show(wd->scroller,
 699                                                x - ((w / wd->display_item_num) * wd->item_count),
 700                                                y, w, h);
 701         else if (x < 0)
 702            elm_smart_scroller_child_region_show(wd->scroller,
 703                                                x + ((w / wd->display_item_num) * wd->item_count),
 704                                                y, w, h);
 705      }
 706 }
 707
 708 static void
 709 _scroller_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 710 {
 711    Elm_Diskselector_Item *it;
 712    Widget_Data *wd = elm_widget_data_get(data);
 713    Evas_Coord x, w, ow;
 714    Eina_List *l, *list;
 715
 716    if (wd->idler) return;
 717
 718    if (!wd->round)
 719      list = wd->items;
 720    else
 721      list = wd->r_items;
 722
 723    evas_object_geometry_get(wd->scroller, NULL, NULL, &ow, NULL);
 724    EINA_LIST_FOREACH(list, l, it)
 725      {
 726         evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
 727         if (abs((int)(ow / 2 - (int)(x + w / 2))) < 10) break;
 728      }
 729
 730    if (!it) return;
 731    _select_item(it);
 732    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_STOP, it);
 733 }
 734
 735 static void
 736 _scroller_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 737 {
 738    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_START,
 739                                    elm_diskselector_selected_item_get(data));
 740 }
 741
 742 static void
 743 _drag_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 744 {
 745    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_START,
 746                                    elm_diskselector_selected_item_get(data));
 747 }
 748
 749 static void
 750 _drag_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 751 {
 752    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_STOP,
 753                                    elm_diskselector_selected_item_get(data));
 754 }
 755
 756 static Eina_Bool
 757 _move_scroller(void *data)
 758 {
 759    Evas_Object *obj = data;
 760    Widget_Data *wd;
 761    Eina_List *list, *l;
 762    Elm_Diskselector_Item *dit;
 763    Evas_Coord y, w, h;
 764    int i;
 765
 766    wd = elm_widget_data_get(obj);
 767    if (!wd) return EINA_FALSE;
 768
 769    if (!wd->round)
 770      {
 771         i = 0;
 772         list = wd->items;
 773      }
 774    else
 775      {
 776         i = 1;
 777         list = wd->r_items;
 778      }
 779
 780    EINA_LIST_FOREACH(list, l, dit)
 781      {
 782         if (wd->selected_item == dit)
 783            break;
 784         i++;
 785      }
 786
 787    if (wd->round) i -= CEIL(wd->display_item_num);
 788
 789    if (!dit)
 790      {
 791         wd->selected_item =
 792            (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
 793         return EINA_FALSE;
 794      }
 795
 796    evas_object_geometry_get(wd->scroller, NULL, &y, &w, &h);
 797    //move scroller in two steps for getting smooth launching effect.
 798    if (i > 2)
 799      elm_smart_scroller_child_region_show(wd->scroller, w / wd->display_item_num * (i-2), y, w, h);
 800    elm_smart_scroller_region_bring_in(wd->scroller, w / wd->display_item_num * i, y, w, h);
 801
 802    _select_item(dit);
 803    if (wd->idler)
 804      {
 805         ecore_idle_enterer_del(wd->idler);
 806         wd->idler = NULL;
 807      }
 808    wd->init = EINA_TRUE;
 809    _check_string(wd);
 810
 811    return EINA_TRUE;
 812 }
 813
 814 static void
 815 _round_item_del(Widget_Data *wd, Elm_Diskselector_Item *it)
 816 {
 817    if (!it) return;
 818    elm_box_unpack(wd->main_box, VIEW(it));
 819    wd->r_items = eina_list_remove(wd->r_items, it);
 820    eina_stringshare_del(it->label);
 821    elm_widget_item_free(it);
 822 }
 823
 824 static void
 825 _round_items_del(Widget_Data *wd)
 826 {
 827    Eina_List *l;
 828    Elm_Diskselector_Item * it;
 829
 830    _round_item_del(wd, wd->last);
 831    wd->last = NULL;
 832    _round_item_del(wd, wd->s_last);
 833    wd->s_last = NULL;
 834    _round_item_del(wd, wd->second);
 835    wd->second = NULL;
 836    _round_item_del(wd, wd->first);
 837    wd->first = NULL;
 838
 839    EINA_LIST_FOREACH(wd->under_items, l, it)
 840      {
 841         _round_item_del(wd, it);
 842      }
 843    wd->under_items = eina_list_free(wd->under_items);
 844
 845    EINA_LIST_FOREACH(wd->over_items, l, it)
 846      {
 847         _round_item_del(wd, it);
 848      }
 849    wd->over_items = eina_list_free(wd->over_items);
 850 }
 851
 852 static void
 853 _round_items_add(Widget_Data *wd)
 854 {
 855    Elm_Diskselector_Item *dit;
 856    Elm_Diskselector_Item *it;
 857    Elm_Diskselector_Item *temp_it;
 858    int i = 0;
 859    dit = it = eina_list_nth(wd->items, 0);
 860    if (!dit) return;
 861
 862    if (!wd->first)
 863      {
 864         wd->first = _item_new(WIDGET(it), it->icon, it->label, it->func,
 865                               it->base.data);
 866         wd->first->node = it->node;
 867         wd->r_items = eina_list_append(wd->r_items, wd->first);
 868      }
 869
 870    it = eina_list_nth(wd->items, 1);
 871    if (!it)
 872      it = dit;
 873    if (!wd->second)
 874      {
 875         wd->second = _item_new(WIDGET(it), it->icon, it->label, it->func,
 876                                it->base.data);
 877         wd->second->node = it->node;
 878         wd->r_items = eina_list_append(wd->r_items, wd->second);
 879      }
 880
 881    // if more than 3 itmes should be displayed
 882    for (i = 2; i < CEIL(wd->display_item_num); i++)
 883      {
 884         it = eina_list_nth(wd->items, i);
 885         if (!it) it = dit;
 886         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 887         wd->over_items = eina_list_append(wd->over_items, temp_it);
 888         wd->r_items = eina_list_append(wd->r_items, temp_it);
 889      }
 890
 891    it = eina_list_nth(wd->items, wd->item_count - 1);
 892    if (!it)
 893      it = dit;
 894    if (!wd->last)
 895      {
 896         wd->last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 897                              it->base.data);
 898         wd->last->node = it->node;
 899         wd->r_items = eina_list_prepend(wd->r_items, wd->last);
 900      }
 901
 902    it = eina_list_nth(wd->items, wd->item_count - 2);
 903    if (!it)
 904      it = dit;
 905    if (!wd->s_last)
 906      {
 907         wd->s_last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 908                                it->base.data);
 909         wd->s_last->node = it->node;
 910         wd->r_items = eina_list_prepend(wd->r_items, wd->s_last);
 911      }
 912
 913    // if more than 3 itmes should be displayed
 914    for (i = 3; i <= CEIL(wd->display_item_num); i++)
 915      {
 916         it = eina_list_nth(wd->items, wd->item_count - i);
 917         if (!it) it = dit;
 918         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 919         wd->under_items = eina_list_append(wd->under_items, temp_it);
 920         wd->r_items = eina_list_prepend(wd->r_items, temp_it);
 921      }
 922 }
 923
 924 static void
 925 _item_icon_set(Elm_Diskselector_Item *it, Evas_Object *icon)
 926 {
 927    if (it->icon == icon) return;
 928    if (it->icon) evas_object_del(it->icon);
 929    it->icon = icon;
 930    if (VIEW(it))
 931      {
 932         evas_object_size_hint_min_set(it->icon, 24, 24);
 933         evas_object_size_hint_max_set(it->icon, 40, 40);
 934         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 935         evas_object_show(it->icon);
 936         elm_widget_sub_object_add(WIDGET(it), it->icon);
 937      }
 938 }
 939
 940 static void
 941 _check_identical_item(Elm_Diskselector_Item *it, Evas_Object *icon)
 942 {
 943    Widget_Data *wd;
 944    Elm_Diskselector_Item *dit;
 945    Eina_List *l;
 946    int idx = 0;
 947    int ic = 0;
 948    int ac = 0;
 949
 950    wd = elm_widget_data_get(WIDGET(it));
 951    if (!wd) return;
 952
 953    if (wd->round)
 954      {
 955         // Get index from indentical item from round items
 956         EINA_LIST_FOREACH(wd->r_items, l, dit)
 957           {
 958              if (it == dit) break;
 959              idx++;
 960           }
 961
 962         // No item to match
 963         ic = eina_list_count(wd->r_items);
 964         if (idx >= ic) return;
 965         dit = NULL;
 966
 967         // Number of added items: CEIL(wd->display_item_num)
 968         ac = CEIL(wd->display_item_num);
 969
 970         if (((idx >= 0) && (idx < ac)) ||
 971             ((idx >= ac) && (idx < (2 * ac))))
 972           {
 973               // Selected item: under, low region
 974              dit = eina_list_nth(wd->r_items,
 975                                  idx + ic - (2 * ac));
 976           }
 977         else if (((idx >= (ic - ac)) && (idx < ic)) ||
 978                  ((idx >= (ic - (2 * ac))) && (idx < ic - ac)))
 979           {
 980               // Selected item: over, high region
 981               dit = eina_list_nth(wd->r_items,
 982                                   idx - ic + (2 * ac));
 983           }
 984
 985         if (dit) _item_icon_set(dit, icon);
 986         _sizing_eval(wd->self);
 987      }
 988 }
 989
 990 static void
 991 _item_text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 992 {
 993    Elm_Diskselector_Item *item;
 994    if (part && strcmp(part, "default")) return;
 995    item = (Elm_Diskselector_Item *)it;
 996    eina_stringshare_replace(&item->label, label);
 997    edje_object_part_text_set(VIEW(item), "elm.text", item->label);
 998 }
 999
1000 static const char *
1001 _item_text_get_hook(const Elm_Object_Item *it, const char *part)
1002 {
1003    if (part && strcmp(part, "default")) return NULL;
1004    return ((Elm_Diskselector_Item *)it)->label;
1005 }
1006
1007 static void
1008 _item_content_set_hook(Elm_Object_Item *it,
1009                        const char *part,
1010                        Evas_Object *content)
1011 {
1012    if (part && strcmp(part, "icon")) return;
1013    _item_icon_set((Elm_Diskselector_Item *)it, content);
1014    _check_identical_item((Elm_Diskselector_Item *)it, content);
1015 }
1016
1017 static Evas_Object *
1018 _item_content_get_hook(const Elm_Object_Item *it, const char *part)
1019 {
1020    if (part && strcmp(part, "icon")) return NULL;
1021    return ((Elm_Diskselector_Item *)it)->icon;
1022 }
1023
1024 EAPI Evas_Object *
1025 elm_diskselector_add(Evas_Object *parent)
1026 {
1027    Evas *e;
1028    Evas_Object *obj;
1029    Widget_Data *wd;
1030
1031    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
1032
1033    ELM_SET_WIDTYPE(widtype, "diskselector");
1034    elm_widget_type_set(obj, "diskselector");
1035    elm_widget_sub_object_add(parent, obj);
1036    elm_widget_data_set(obj, wd);
1037    elm_widget_del_hook_set(obj, _del_hook);
1038    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
1039    elm_widget_theme_hook_set(obj, _theme_hook);
1040    elm_widget_can_focus_set(obj, EINA_TRUE);
1041    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
1042    elm_widget_event_hook_set(obj, _event_hook);
1043
1044    wd->self = obj;
1045    wd->item_count = 0;
1046    wd->round = EINA_FALSE;
1047    wd->init = EINA_FALSE;
1048    wd->len_side = 3;
1049    wd->display_item_num_by_api = EINA_FALSE;
1050
1051    wd->scroller = elm_smart_scroller_add(e);
1052    elm_smart_scroller_widget_set(wd->scroller, obj);
1053    _theme_hook(obj);
1054    elm_widget_resize_object_set(obj, wd->scroller);
1055    elm_smart_scroller_policy_set(wd->scroller, ELM_SMART_SCROLLER_POLICY_OFF,
1056                                  ELM_SMART_SCROLLER_POLICY_OFF);
1057    elm_smart_scroller_bounce_allow_set(wd->scroller, EINA_TRUE, EINA_FALSE);
1058    evas_object_smart_callback_add(wd->scroller, "scroll", _scroller_move_cb,
1059                                   wd);
1060    evas_object_smart_callback_add(wd->scroller, "animate,stop",
1061                                   _scroller_stop_cb, obj);
1062    evas_object_smart_callback_add(wd->scroller, "animate,start",
1063                                   _scroller_start_cb, obj);
1064    evas_object_smart_callback_add(wd->scroller, "drag,stop",
1065                                   _drag_stop_cb, obj);
1066    evas_object_smart_callback_add(wd->scroller, "drag,start",
1067                                   _drag_start_cb, obj);
1068
1069    _elm_theme_object_set(obj, wd->scroller, "diskselector", "base",
1070                          "default");
1071    evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
1072                                   _diskselector_object_resize, obj);
1073
1074    wd->main_box = elm_box_add(parent);
1075    elm_box_horizontal_set(wd->main_box, EINA_TRUE);
1076    elm_box_homogeneous_set(wd->main_box, EINA_TRUE);
1077    evas_object_size_hint_weight_set(wd->main_box, EVAS_HINT_EXPAND,
1078                                     EVAS_HINT_EXPAND);
1079    evas_object_size_hint_align_set(wd->main_box, EVAS_HINT_FILL,
1080                                    EVAS_HINT_FILL);
1081    _elm_theme_object_set(obj, wd->main_box, "diskselector", "base",
1082                          "default");
1083    elm_widget_sub_object_add(obj, wd->main_box);
1084
1085    elm_smart_scroller_child_set(wd->scroller, wd->main_box);
1086
1087    wd->left_blank = edje_object_add(evas_object_evas_get(obj));
1088    _elm_theme_object_set(obj, wd->left_blank, "diskselector", "item",
1089                          "default");
1090    evas_object_size_hint_weight_set(wd->left_blank, EVAS_HINT_EXPAND,
1091                                     EVAS_HINT_EXPAND);
1092    evas_object_size_hint_align_set(wd->left_blank, EVAS_HINT_FILL,
1093                                    EVAS_HINT_FILL);
1094    elm_box_pack_end(wd->main_box, wd->left_blank);
1095    evas_object_show(wd->left_blank);
1096
1097    wd->right_blank = edje_object_add(evas_object_evas_get(obj));
1098    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
1099                          "default");
1100    evas_object_size_hint_weight_set(wd->right_blank, EVAS_HINT_EXPAND,
1101                                     EVAS_HINT_EXPAND);
1102    evas_object_size_hint_align_set(wd->right_blank, EVAS_HINT_FILL,
1103                                    EVAS_HINT_FILL);
1104    elm_box_pack_end(wd->main_box, wd->right_blank);
1105    evas_object_show(wd->right_blank);
1106
1107    _theme_data_get(wd);
1108
1109    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
1110    evas_object_smart_callbacks_descriptions_set(obj, _signals);
1111    _sizing_eval(obj);
1112    return obj;
1113 }
1114
1115 EAPI Eina_Bool
1116 elm_diskselector_round_enabled_get(const Evas_Object *obj)
1117 {
1118    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1119    Widget_Data *wd = elm_widget_data_get(obj);
1120    if (!wd) return EINA_FALSE;
1121    return wd->round;
1122 }
1123
1124 EAPI void
1125 elm_diskselector_round_enabled_set(Evas_Object * obj, Eina_Bool enabled)
1126 {
1127    Eina_List *elist;
1128    Elm_Diskselector_Item *it;
1129
1130    ELM_CHECK_WIDTYPE(obj, widtype);
1131    Widget_Data *wd = elm_widget_data_get(obj);
1132    if (!wd) return;
1133
1134    if (wd->round == enabled)
1135      return;
1136
1137    wd->round = !!enabled;
1138    if (enabled)
1139      {
1140         wd->r_items = eina_list_clone(wd->items);
1141         elm_box_unpack(wd->main_box, wd->left_blank);
1142         evas_object_hide(wd->left_blank);
1143         elm_box_unpack(wd->main_box, wd->right_blank);
1144         evas_object_hide(wd->right_blank);
1145         if (!wd->items)
1146           return;
1147
1148         _round_items_add(wd);
1149
1150         if (wd->last)
1151           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1152         if (wd->s_last)
1153           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1154
1155         // if more than 3 items should be displayed
1156         EINA_LIST_FOREACH(wd->under_items, elist, it)
1157            elm_box_pack_start(wd->main_box, VIEW(it));
1158
1159         if (wd->first)
1160           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1161         if (wd->second)
1162           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1163
1164         // if more than 3 items should be displayed
1165         EINA_LIST_FOREACH(wd->over_items, elist, it)
1166            elm_box_pack_end(wd->main_box, VIEW(it));
1167      }
1168    else
1169      {
1170         _round_items_del(wd);
1171         elm_box_pack_start(wd->main_box, wd->left_blank);
1172         elm_box_pack_end(wd->main_box, wd->right_blank);
1173         eina_list_free(wd->r_items);
1174         wd->r_items = NULL;
1175      }
1176
1177    _selected_item_indicate(wd->selected_item);
1178    _sizing_eval(obj);
1179 }
1180
1181 EAPI int
1182 elm_diskselector_side_text_max_length_get(const Evas_Object *obj)
1183 {
1184    ELM_CHECK_WIDTYPE(obj, widtype) 0;
1185    Widget_Data *wd = elm_widget_data_get(obj);
1186    if (!wd) return 0;
1187    return wd->len_side;
1188 }
1189
1190 EAPI void
1191 elm_diskselector_side_text_max_length_set(Evas_Object *obj, int len)
1192 {
1193    ELM_CHECK_WIDTYPE(obj, widtype);
1194    Widget_Data *wd = elm_widget_data_get(obj);
1195    if (!wd) return;
1196    wd->len_side = len;
1197 }
1198
1199 EAPI void
1200 elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
1201 {
1202    ELM_CHECK_WIDTYPE(obj, widtype);
1203    Widget_Data *wd = elm_widget_data_get(obj);
1204    if (!wd) return;
1205    if (wd->scroller)
1206      elm_smart_scroller_bounce_allow_set(wd->scroller, h_bounce, v_bounce);
1207 }
1208
1209 EAPI void
1210 elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
1211 {
1212    ELM_CHECK_WIDTYPE(obj, widtype);
1213    Widget_Data *wd = elm_widget_data_get(obj);
1214    if (!wd) return;
1215    elm_smart_scroller_bounce_allow_get(wd->scroller, h_bounce, v_bounce);
1216 }
1217
1218 EAPI void
1219 elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
1220 {
1221    ELM_CHECK_WIDTYPE(obj, widtype);
1222    Elm_Smart_Scroller_Policy s_policy_h, s_policy_v;
1223    Widget_Data *wd = elm_widget_data_get(obj);
1224    if ((!wd) || (!wd->scroller)) return;
1225    elm_smart_scroller_policy_get(wd->scroller, &s_policy_h, &s_policy_v);
1226    *policy_h = (Elm_Scroller_Policy) s_policy_h;
1227    *policy_v = (Elm_Scroller_Policy) s_policy_v;
1228 }
1229
1230 EAPI void
1231 elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
1232 {
1233    ELM_CHECK_WIDTYPE(obj, widtype);
1234    Widget_Data *wd = elm_widget_data_get(obj);
1235    if ((!wd) || (!wd->scroller)) return;
1236    if ((policy_h >= ELM_SCROLLER_POLICY_LAST) ||
1237        (policy_v >= ELM_SCROLLER_POLICY_LAST))
1238      return;
1239    elm_smart_scroller_policy_set(wd->scroller, policy_h, policy_v);
1240 }
1241
1242 EAPI void
1243 elm_diskselector_clear(Evas_Object *obj)
1244 {
1245    ELM_CHECK_WIDTYPE(obj, widtype);
1246    Widget_Data *wd = elm_widget_data_get(obj);
1247    Elm_Diskselector_Item *it;
1248
1249    if (!wd) return;
1250    if (!wd->items) return;
1251
1252    wd->selected_item = NULL;
1253    EINA_LIST_FREE(wd->items, it)
1254      {
1255         _item_del(it);
1256         elm_widget_item_free(it);
1257      }
1258    _round_items_del(wd);
1259    _sizing_eval(obj);
1260 }
1261
1262 EAPI const Eina_List *
1263 elm_diskselector_items_get(const Evas_Object *obj)
1264 {
1265    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1266    Widget_Data *wd = elm_widget_data_get(obj);
1267    if (!wd) return NULL;
1268    return wd->items;
1269 }
1270
1271 EAPI Elm_Object_Item *
1272 elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data)
1273 {
1274    Elm_Diskselector_Item *it;
1275    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1276    Widget_Data *wd = elm_widget_data_get(obj);
1277    if (!wd) return NULL;
1278
1279    it = _item_new(obj, icon, label, func, data);
1280    wd->items = eina_list_append(wd->items, it);
1281    it->node = eina_list_last(wd->items);
1282    wd->item_count++;
1283    if (wd->round)
1284      {
1285         _round_items_del(wd);
1286         wd->r_items = eina_list_append(wd->r_items, it);
1287         _round_items_add(wd);
1288         if (wd->last)
1289           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1290         if (wd->s_last)
1291           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1292         elm_box_pack_end(wd->main_box, VIEW(it));
1293         if (wd->first)
1294           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1295         if (wd->second)
1296           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1297      }
1298    else
1299      {
1300         elm_box_unpack(wd->main_box, wd->right_blank);
1301         elm_box_pack_end(wd->main_box, VIEW(it));
1302         elm_box_pack_end(wd->main_box, wd->right_blank);
1303      }
1304    if (!wd->selected_item)
1305      wd->selected_item = it;
1306    if (!wd->idler)
1307      wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
1308    _sizing_eval(obj);
1309    return (Elm_Object_Item *)it;
1310 }
1311
1312 EAPI Elm_Object_Item *
1313 elm_diskselector_selected_item_get(const Evas_Object *obj)
1314 {
1315    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1316    Widget_Data *wd = elm_widget_data_get(obj);
1317    if (!wd) return NULL;
1318    return (Elm_Object_Item *) wd->selected_item;
1319 }
1320
1321 EAPI void
1322 elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
1323 {
1324    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
1325    Widget_Data *wd;
1326    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1327    wd = elm_widget_data_get(WIDGET(item));
1328    if (!wd) return;
1329
1330    if ((wd->selected_item == item) && (selected))
1331      return;
1332
1333    if ((wd->selected_item == item) && (!selected))
1334      wd->selected_item = eina_list_data_get(wd->items);
1335    else
1336      {
1337         wd->selected_item = item;
1338         _selected_item_indicate(wd->selected_item);
1339      }
1340
1341    if (!wd->idler)
1342      wd->idler = ecore_idle_enterer_before_add(_move_scroller, WIDGET(item));
1343 }
1344
1345 EAPI Eina_Bool
1346 elm_diskselector_item_selected_get(const Elm_Object_Item *it)
1347 {
1348    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
1349    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
1350    if (!wd) return EINA_FALSE;
1351    return (wd->selected_item == ((Elm_Diskselector_Item *)it));
1352 }
1353
1354 EAPI Elm_Object_Item *
1355 elm_diskselector_item_prev_get(const Elm_Object_Item *it)
1356 {
1357    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1358    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1359    if (item->node->prev) return item->node->prev->data;
1360    else return NULL;
1361 }
1362
1363 EAPI Elm_Object_Item *
1364 elm_diskselector_item_next_get(const Elm_Object_Item *it)
1365 {
1366    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1367    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1368    if (item->node->next) return item->node->next->data;
1369    else return NULL;
1370 }
1371
1372 EAPI Elm_Object_Item *
1373 elm_diskselector_first_item_get(const Evas_Object *obj)
1374 {
1375    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1376    Widget_Data *wd = elm_widget_data_get(obj);
1377    if (!wd || !wd->items) return NULL;
1378    return eina_list_data_get(wd->items);
1379 }
1380
1381 EAPI Elm_Object_Item *
1382 elm_diskselector_last_item_get(const Evas_Object *obj)
1383 {
1384    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1385    Widget_Data *wd = elm_widget_data_get(obj);
1386    if (!wd || !wd->items) return NULL;
1387    return eina_list_data_get(eina_list_last(wd->items));
1388 }
1389
1390 EAPI void
1391 elm_diskselector_display_item_num_set(Evas_Object *obj, int num)
1392 {
1393    ELM_CHECK_WIDTYPE(obj, widtype);
1394    Widget_Data *wd = elm_widget_data_get(obj);
1395    if (!wd) return;
1396    if (num < DISPLAY_ITEM_NUM_MIN) num = DISPLAY_ITEM_NUM_MIN;
1397    wd->display_item_num = num;
1398    wd->display_item_num_by_api = EINA_TRUE;
1399 }
1400
1401 EAPI int
1402 elm_diskselector_display_item_num_get(const Evas_Object *item)
1403 {
1404    ELM_CHECK_WIDTYPE(item, widtype) (-1);
1405    Widget_Data *wd = elm_widget_data_get(item);
1406    if (!wd) return -1;
1407    return wd->display_item_num;
1408 }