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