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