src/lib/elm_index.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "els_box.h"
   4
   5 typedef struct _Widget_Data Widget_Data;
   6 typedef struct _Elm_Index_Item Elm_Index_Item;
   7
   8 struct _Widget_Data
   9 {
  10    Evas_Object *base;
  11    Evas_Object *event[2];
  12    Evas_Object *bx[2]; // 2 - for now all that's supported
  13    Eina_List *items; // 1 list. yes N levels, but only 2 for now and # of items will be small
  14    int level;
  15    Evas_Coord dx, dy;
  16    Ecore_Timer *delay;
  17    Eina_Bool level_active[2];
  18    Eina_Bool horizontal : 1;
  19    Eina_Bool autohide_disabled : 1;
  20    Eina_Bool down : 1;
  21    Eina_Bool indicator_disabled : 1;
  22 };
  23
  24 struct _Elm_Index_Item
  25 {
  26    ELM_WIDGET_ITEM;
  27    const char *letter;
  28    int level;
  29    Evas_Smart_Cb func;
  30    Eina_Bool selected : 1;
  31 };
  32
  33 static const char *widtype = NULL;
  34
  35 static void _del_hook(Evas_Object *obj);
  36 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  37 static void _theme_hook(Evas_Object *obj);
  38 static void _sizing_eval(Evas_Object *obj);
  39 static void _index_box_auto_fill(Evas_Object *obj, Evas_Object *box, int level);
  40 static void _index_box_clear(Evas_Object *obj, Evas_Object *box, int level);
  41 static void _item_free(Elm_Index_Item *it);
  42
  43 static const char SIG_CHANGED[] = "changed";
  44 static const char SIG_DELAY_CHANGED[] = "delay,changed";
  45 static const char SIG_SELECTED[] = "selected";
  46 static const char SIG_LEVEL_UP[] = "level,up";
  47 static const char SIG_LEVEL_DOWN[] = "level,down";
  48
  49 static const Evas_Smart_Cb_Description _signals[] = {
  50    {SIG_CHANGED, ""},
  51    {SIG_DELAY_CHANGED, ""},
  52    {SIG_SELECTED, ""},
  53    {SIG_LEVEL_UP, ""},
  54    {SIG_LEVEL_DOWN, ""},
  55    {NULL, NULL}
  56 };
  57
  58 static void
  59 _del_pre_hook(Evas_Object *obj)
  60 {
  61    Widget_Data *wd = elm_widget_data_get(obj);
  62    Elm_Index_Item *it;
  63    if (!wd) return;
  64    _index_box_clear(obj, wd->bx[wd->level], wd->level);
  65    _index_box_clear(obj, wd->bx[0], 0);
  66    while (wd->items)
  67      {
  68         it = wd->items->data;
  69         _item_free(it);
  70         elm_widget_item_free(it);
  71      }
  72    if (wd->delay) ecore_timer_del(wd->delay);
  73 }
  74
  75 static void
  76 _del_hook(Evas_Object *obj)
  77 {
  78    Widget_Data *wd = elm_widget_data_get(obj);
  79    free(wd);
  80 }
  81
  82 static void
  83 _layout(Evas_Object *o, Evas_Object_Box_Data *priv, void *data)
  84 {
  85    Widget_Data *wd = data;
  86    if (!wd) return;
  87    _els_box_layout(o, priv, wd->horizontal, 1, 0);
  88 }
  89
  90 static void
  91 _signal_emit_hook(Evas_Object *obj, const char *emission, const char *source)
  92 {
  93    Widget_Data *wd = elm_widget_data_get(obj);
  94    if (!wd) return;
  95    edje_object_signal_emit(wd->base, emission, source);
  96 }
  97
  98 static void
  99 _signal_callback_add_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 100 {
 101    Widget_Data *wd = elm_widget_data_get(obj);
 102    if (!wd) return;
 103    edje_object_signal_callback_add(wd->base, emission, source, func_cb, data);
 104 }
 105
 106 static void
 107 _signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 108 {
 109    Widget_Data *wd = elm_widget_data_get(obj);
 110    edje_object_signal_callback_del_full(wd->base, emission, source, func_cb,
 111                                         data);
 112 }
 113
 114 static void
 115 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
 116 {
 117    Widget_Data *wd = elm_widget_data_get(obj);
 118    if (!wd) return;
 119    if (!wd->horizontal)
 120      edje_object_mirrored_set(wd->base, rtl);
 121 }
 122
 123 static void
 124 _theme_hook(Evas_Object *obj)
 125 {
 126    Evas_Coord minw = 0, minh = 0;
 127    Widget_Data *wd = elm_widget_data_get(obj);
 128    if (!wd) return;
 129    _elm_widget_mirrored_reload(obj);
 130
 131    _index_box_clear(obj, wd->bx[0], 0);
 132    _index_box_clear(obj, wd->bx[1], 1);
 133    if (wd->horizontal)
 134      _elm_theme_object_set(obj, wd->base, "index", "base/horizontal", elm_widget_style_get(obj));
 135    else
 136      {
 137         _elm_theme_object_set(obj, wd->base, "index", "base/vertical", elm_widget_style_get(obj));
 138         _mirrored_set(obj, elm_widget_mirrored_get(obj));
 139      }
 140    edje_object_part_swallow(wd->base, "elm.swallow.event.0", wd->event[0]);
 141    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 142    evas_object_size_hint_min_set(wd->event[0], minw, minh);
 143    edje_object_part_swallow(wd->base, "elm.swallow.index.0", wd->bx[0]);
 144    if (edje_object_part_exists(wd->base, "elm.swallow.index.1"))
 145      {
 146         if (!wd->bx[1])
 147           {
 148              wd->bx[1] = evas_object_box_add(evas_object_evas_get(wd->base));
 149              evas_object_box_layout_set(wd->bx[1], _layout, wd, NULL);
 150              elm_widget_sub_object_add(obj, wd->bx[1]);
 151           }
 152         edje_object_part_swallow(wd->base, "elm.swallow.index.1", wd->bx[1]);
 153         evas_object_show(wd->bx[1]);
 154      }
 155    else if (wd->bx[1])
 156      {
 157         evas_object_del(wd->bx[1]);
 158         wd->bx[1] = NULL;
 159      }
 160    if (edje_object_part_exists(wd->base, "elm.swallow.event.1"))
 161      {
 162         if (!wd->event[1])
 163           {
 164              wd->event[1] = evas_object_rectangle_add(evas_object_evas_get(wd->base));
 165              evas_object_color_set(wd->event[1], 0, 0, 0, 0);
 166              elm_widget_sub_object_add(obj, wd->event[1]);
 167           }
 168         edje_object_part_swallow(wd->base, "elm.swallow.event.1", wd->event[1]);
 169         evas_object_size_hint_min_set(wd->event[1], minw, minh);
 170      }
 171    else if (wd->event[1])
 172      {
 173         evas_object_del(wd->event[1]);
 174         wd->event[1] = NULL;
 175      }
 176    edje_object_message_signal_process(wd->base);
 177    edje_object_scale_set(wd->base, elm_widget_scale_get(obj) * _elm_config->scale);
 178    _sizing_eval(obj);
 179    _index_box_auto_fill(obj, wd->bx[0], 0);
 180
 181    if (wd->autohide_disabled)
 182      {
 183         if (wd->level == 1) _index_box_auto_fill(obj, wd->bx[1], 1);
 184         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 185      }
 186    else
 187      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 188 }
 189
 190 static void
 191 _sizing_eval(Evas_Object *obj)
 192 {
 193    Widget_Data *wd = elm_widget_data_get(obj);
 194    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 195    if (!wd) return;
 196    edje_object_size_min_calc(wd->base, &minw, &minh);
 197    evas_object_size_hint_min_set(obj, minw, minh);
 198    evas_object_size_hint_max_set(obj, maxw, maxh);
 199 }
 200
 201 static Eina_Bool
 202 _item_del_pre_hook(Elm_Object_Item *it)
 203 {
 204    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 205    if (!wd) return EINA_FALSE;
 206    _item_free((Elm_Index_Item *)it);
 207    _index_box_clear(WIDGET(it), wd->bx[wd->level], wd->level);
 208    return EINA_TRUE;
 209 }
 210
 211 static Elm_Index_Item *
 212 _item_new(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 213 {
 214    Widget_Data *wd = elm_widget_data_get(obj);
 215    Elm_Index_Item *it;
 216    if (!wd) return NULL;
 217    it = elm_widget_item_new(obj, Elm_Index_Item);
 218    if (!it) return NULL;
 219    elm_widget_item_del_pre_hook_set(it, _item_del_pre_hook);
 220    if (letter) it->letter = eina_stringshare_add(letter);
 221    it->func = func;
 222    it->base.data = data;
 223    it->level = wd->level;
 224    return it;
 225 }
 226
 227 static Elm_Index_Item *
 228 _item_find(Evas_Object *obj, const void *data)
 229 {
 230    Widget_Data *wd = elm_widget_data_get(obj);
 231    Eina_List *l;
 232    Elm_Index_Item *it;
 233    if (!wd) return NULL;
 234    EINA_LIST_FOREACH(wd->items, l, it)
 235      if (it->base.data == data) return it;
 236    return NULL;
 237 }
 238
 239 static void
 240 _item_free(Elm_Index_Item *it)
 241 {
 242    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 243    if (!wd) return;
 244    wd->items = eina_list_remove(wd->items, it);
 245    if (it->letter) eina_stringshare_del(it->letter);
 246 }
 247
 248 // FIXME: always have index filled
 249 static void
 250 _index_box_auto_fill(Evas_Object *obj, Evas_Object *box, int level)
 251 {
 252    Widget_Data *wd = elm_widget_data_get(obj);
 253    Eina_Bool rtl;
 254    Eina_List *l;
 255    Elm_Index_Item *it;
 256    Evas_Coord mw, mh, w, h;
 257    int i = 0;
 258    if (!wd) return;
 259    if (wd->level_active[level]) return;
 260    rtl = elm_widget_mirrored_get(obj);
 261    evas_object_geometry_get(box, NULL, NULL, &w, &h);
 262    EINA_LIST_FOREACH(wd->items, l, it)
 263      {
 264         Evas_Object *o;
 265         const char *stacking;
 266
 267         if (it->level != level) continue;
 268         o = edje_object_add(evas_object_evas_get(obj));
 269         VIEW(it) = o;
 270         edje_object_mirrored_set(VIEW(it), rtl);
 271
 272         if (wd->horizontal)
 273           {
 274              if (i & 0x1)
 275                _elm_theme_object_set(obj, o, "index", "item_odd/horizontal",
 276                                      elm_widget_style_get(obj));
 277              else
 278                _elm_theme_object_set(obj, o, "index", "item/horizontal",
 279                                      elm_widget_style_get(obj));
 280           }
 281         else
 282           {
 283              if (i & 0x1)
 284                _elm_theme_object_set(obj, o, "index", "item_odd/vertical",
 285                                      elm_widget_style_get(obj));
 286              else
 287                _elm_theme_object_set(obj, o, "index", "item/vertical",
 288                                      elm_widget_style_get(obj));
 289           }
 290
 291         edje_object_part_text_set(o, "elm.text", it->letter);
 292         edje_object_size_min_restricted_calc(o, &mw, &mh, 0, 0);
 293         evas_object_size_hint_min_set(o, mw, mh);
 294         evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 295         evas_object_size_hint_align_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
 296         elm_widget_sub_object_add(obj, o);
 297         evas_object_box_append(box, o);
 298         stacking = edje_object_data_get(o, "stacking");
 299         if (stacking)
 300           {
 301              if (!strcmp(stacking, "below")) evas_object_lower(o);
 302              else if (!strcmp(stacking, "above")) evas_object_raise(o);
 303           }
 304         evas_object_show(o);
 305         i++;
 306         evas_object_smart_calculate(box); // force a calc so we know the size
 307         evas_object_size_hint_min_get(box, &mw, &mh);
 308         if (mh > h)
 309           {
 310              _index_box_clear(obj, box, level);
 311              if (i > 0)
 312                {
 313                   // FIXME: only i objects fit! try again. overflows right now
 314                }
 315           }
 316      }
 317    evas_object_smart_calculate(box);
 318    wd->level_active[level] = 1;
 319 }
 320
 321 static void
 322 _index_box_clear(Evas_Object *obj, Evas_Object *box __UNUSED__, int level)
 323 {
 324    Widget_Data *wd = elm_widget_data_get(obj);
 325    Eina_List *l;
 326    Elm_Index_Item *it;
 327    if (!wd) return;
 328    if (!wd->level_active[level]) return;
 329    EINA_LIST_FOREACH(wd->items, l, it)
 330      {
 331         if (!VIEW(it)) continue;
 332         if (it->level != level) continue;
 333         evas_object_del(VIEW(it));
 334         VIEW(it) = NULL;
 335      }
 336    wd->level_active[level] = 0;
 337 }
 338
 339 static Eina_Bool
 340 _delay_change(void *data)
 341 {
 342    Widget_Data *wd = elm_widget_data_get(data);
 343    Elm_Object_Item *item;
 344    if (!wd) return ECORE_CALLBACK_CANCEL;
 345    wd->delay = NULL;
 346    item = elm_index_selected_item_get(data, wd->level);
 347    if (item) evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, item);
 348    return ECORE_CALLBACK_CANCEL;
 349 }
 350
 351 static void
 352 _sel_eval(Evas_Object *obj, Evas_Coord evx, Evas_Coord evy)
 353 {
 354    Widget_Data *wd = elm_widget_data_get(obj);
 355    Elm_Index_Item *it, *it_closest, *it_last;
 356    Eina_List *l;
 357    Evas_Coord x, y, w, h, bx, by, bw, bh, xx, yy;
 358    double cdv = 0.5;
 359    Evas_Coord dist;
 360    char *label = NULL, *last = NULL;
 361    int i;
 362    if (!wd) return;
 363    for (i = 0; i <= wd->level; i++)
 364      {
 365         it_last = NULL;
 366         it_closest  = NULL;
 367         dist = 0x7fffffff;
 368         evas_object_geometry_get(wd->bx[i], &bx, &by, &bw, &bh);
 369         EINA_LIST_FOREACH(wd->items, l, it)
 370           {
 371              if (it->level != i) continue;
 372              if (it->level != wd->level)
 373                {
 374                   if (it->selected)
 375                     {
 376                        it_closest = it;
 377                        break;
 378                     }
 379                   continue;
 380                }
 381              if (it->selected)
 382                {
 383                   it_last = it;
 384                   it->selected = 0;
 385                }
 386              evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 387              xx = x + (w / 2);
 388              yy = y + (h / 2);
 389              x = evx - xx;
 390              y = evy - yy;
 391              x = (x * x) + (y * y);
 392              if ((x < dist) || (!it_closest))
 393                {
 394                   if (wd->horizontal)
 395                     cdv = (double)(xx - bx) / (double)bw;
 396                   else
 397                     cdv = (double)(yy - by) / (double)bh;
 398                   it_closest = it;
 399                   dist = x;
 400                }
 401           }
 402         if ((i == 0) && (wd->level == 0))
 403           edje_object_part_drag_value_set(wd->base, "elm.dragable.index.1",
 404                                           cdv, cdv);
 405         if (it_closest) it_closest->selected = 1;
 406         if (it_closest != it_last)
 407           {
 408              if (it_last)
 409                {
 410                   const char *stacking, *selectraise;
 411
 412                   it = it_last;
 413                   edje_object_signal_emit(VIEW(it), "elm,state,inactive", "elm");
 414                   stacking = edje_object_data_get(VIEW(it), "stacking");
 415                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 416                   if ((selectraise) && (!strcmp(selectraise, "on")))
 417                     {
 418                        if ((stacking) && (!strcmp(stacking, "below")))
 419                          evas_object_lower(VIEW(it));
 420                     }
 421                }
 422              if (it_closest)
 423                {
 424                   const char *selectraise;
 425
 426                   it = it_closest;
 427                   edje_object_signal_emit(VIEW(it), "elm,state,active", "elm");
 428                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 429                   if ((selectraise) && (!strcmp(selectraise, "on")))
 430                     evas_object_raise(VIEW(it));
 431                   evas_object_smart_callback_call((void *)obj, SIG_CHANGED, (void *)it);
 432                   if (wd->delay) ecore_timer_del(wd->delay);
 433                   wd->delay = ecore_timer_add(0.2, _delay_change, obj);
 434                }
 435           }
 436         if (it_closest)
 437           {
 438              it = it_closest;
 439              if (!last)
 440                last = strdup(it->letter);
 441              else
 442                {
 443                   if (!label) label = strdup(last);
 444                   else
 445                     {
 446                        label = realloc(label, strlen(label) + strlen(last) + 1);
 447                        if (!label) return;
 448                        strcat(label, last);
 449                     }
 450                   free(last);
 451                   last = strdup(it->letter);
 452                }
 453           }
 454      }
 455
 456    if (!label) label = strdup("");
 457    if (!last) last = strdup("");
 458    edje_object_part_text_set(wd->base, "elm.text.body", label);
 459    edje_object_part_text_set(wd->base, "elm.text", last);
 460    free(label);
 461    free(last);
 462 }
 463
 464 static void
 465 _wheel(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
 466 {
 467    Widget_Data *wd = elm_widget_data_get(data);
 468    //   Evas_Event_Mouse_Wheel *ev = event_info;
 469    //   Evas_Object *obj = o;
 470    if (!wd) return;
 471 }
 472
 473 static void
 474 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 475 {
 476    Widget_Data *wd = elm_widget_data_get(data);
 477    Evas_Event_Mouse_Down *ev = event_info;
 478    Evas_Coord x, y, w;
 479    if (!wd) return;
 480    if (ev->button != 1) return;
 481    wd->down = 1;
 482    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 483    wd->dx = ev->canvas.x - x;
 484    wd->dy = ev->canvas.y - y;
 485    if (!wd->autohide_disabled)
 486      {
 487         _index_box_clear(data, wd->bx[1], 1);
 488         _index_box_auto_fill(data, wd->bx[0], 0);
 489         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 490      }
 491    _sel_eval(data, ev->canvas.x, ev->canvas.y);
 492    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer",
 493                                    (!edje_object_mirrored_get(wd->base)) ? wd->dx : (wd->dx - w), wd->dy);
 494    if (wd->items && !wd->indicator_disabled)
 495      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 496 }
 497
 498 static void
 499 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 500 {
 501    Widget_Data *wd = elm_widget_data_get(data);
 502    Evas_Event_Mouse_Up *ev = event_info;
 503    Elm_Object_Item *item;
 504    Elm_Index_Item *id_item;
 505    if (!wd) return;
 506    if (ev->button != 1) return;
 507    wd->down = 0;
 508    item = elm_index_selected_item_get(data, wd->level);
 509    if (item)
 510      {
 511         evas_object_smart_callback_call(data, SIG_SELECTED, item);
 512         id_item = (Elm_Index_Item *)item;
 513         if (id_item->func)
 514           id_item->func((void *)id_item->base.data, WIDGET(id_item), id_item);
 515      }
 516    if (!wd->autohide_disabled)
 517      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 518    edje_object_signal_emit(wd->base, "elm,state,level,0", "elm");
 519    if (wd->items && !wd->indicator_disabled)
 520      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 521 }
 522
 523 static void
 524 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 525 {
 526    Widget_Data *wd = elm_widget_data_get(data);
 527    Evas_Event_Mouse_Move *ev = event_info;
 528    Evas_Coord minw = 0, minh = 0, x, y, dx, adx, w;
 529    char buf[1024];
 530    if (!wd) return;
 531    if (!wd->down) return;
 532    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 533    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 534    x = ev->cur.canvas.x - x;
 535    y = ev->cur.canvas.y - y;
 536    dx = x - wd->dx;
 537    adx = dx;
 538    if (adx < 0) adx = -dx;
 539    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer"
 540                                    , (!edje_object_mirrored_get(wd->base)) ? x : (x - w), y);
 541    if (!wd->horizontal)
 542      {
 543         if (adx > minw)
 544           {
 545              if (!wd->level)
 546                {
 547                   wd->level = 1;
 548                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 549                   edje_object_signal_emit(wd->base, buf, "elm");
 550                   evas_object_smart_callback_call(data, SIG_LEVEL_UP, NULL);
 551                }
 552           }
 553         else
 554           {
 555              if (wd->level == 1)
 556                {
 557                   wd->level = 0;
 558                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 559                   edje_object_signal_emit(wd->base, buf, "elm");
 560                   evas_object_smart_callback_call(data, SIG_LEVEL_DOWN, NULL);
 561                }
 562           }
 563      }
 564    _sel_eval(data, ev->cur.canvas.x, ev->cur.canvas.y);
 565 }
 566
 567 EAPI Evas_Object *
 568 elm_index_add(Evas_Object *parent)
 569 {
 570    Evas_Object *obj;
 571    Evas_Object *o;
 572    Evas *e;
 573    Widget_Data *wd;
 574    Evas_Coord minw, minh;
 575
 576    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 577
 578    ELM_SET_WIDTYPE(widtype, "index");
 579    elm_widget_type_set(obj, "index");
 580    elm_widget_sub_object_add(parent, obj);
 581    elm_widget_data_set(obj, wd);
 582    elm_widget_del_hook_set(obj, _del_hook);
 583    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 584    elm_widget_theme_hook_set(obj, _theme_hook);
 585    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 586    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 587    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 588    elm_widget_can_focus_set(obj, EINA_FALSE);
 589
 590    wd->indicator_disabled = EINA_FALSE;
 591    wd->horizontal = EINA_FALSE;
 592    wd->autohide_disabled = EINA_FALSE;
 593
 594    wd->base = edje_object_add(e);
 595    _elm_theme_object_set(obj, wd->base, "index", "base/vertical", "default");
 596    elm_widget_resize_object_set(obj, wd->base);
 597
 598    o = evas_object_rectangle_add(e);
 599    wd->event[0] = o;
 600    evas_object_color_set(o, 0, 0, 0, 0);
 601    minw = minh = 0;
 602    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 603    evas_object_size_hint_min_set(o, minw, minh);
 604    edje_object_part_swallow(wd->base, "elm.swallow.event.0", o);
 605    elm_widget_sub_object_add(obj, o);
 606    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL, _wheel, obj);
 607    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN, _mouse_down, obj);
 608    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_UP, _mouse_up, obj);
 609    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move, obj);
 610    evas_object_show(o);
 611    if (edje_object_part_exists(wd->base, "elm.swallow.event.1"))
 612      {
 613         o = evas_object_rectangle_add(e);
 614         wd->event[1] = o;
 615         evas_object_color_set(o, 0, 0, 0, 0);
 616         evas_object_size_hint_min_set(o, minw, minh);
 617         edje_object_part_swallow(wd->base, "elm.swallow.event.1", o);
 618         elm_widget_sub_object_add(obj, o);
 619      }
 620
 621    wd->bx[0] = evas_object_box_add(e);
 622    evas_object_box_layout_set(wd->bx[0], _layout, wd, NULL);
 623    elm_widget_sub_object_add(obj, wd->bx[0]);
 624    edje_object_part_swallow(wd->base, "elm.swallow.index.0", wd->bx[0]);
 625    evas_object_show(wd->bx[0]);
 626
 627    if (edje_object_part_exists(wd->base, "elm.swallow.index.1"))
 628      {
 629         wd->bx[1] = evas_object_box_add(e);
 630         evas_object_box_layout_set(wd->bx[1], _layout, wd, NULL);
 631         elm_widget_sub_object_add(obj, wd->bx[1]);
 632         edje_object_part_swallow(wd->base, "elm.swallow.index.1", wd->bx[1]);
 633         evas_object_show(wd->bx[1]);
 634      }
 635
 636    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 637
 638    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 639    _sizing_eval(obj);
 640    return obj;
 641 }
 642
 643 EAPI void
 644 elm_index_autohide_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 645 {
 646    ELM_CHECK_WIDTYPE(obj, widtype);
 647    Widget_Data *wd = elm_widget_data_get(obj);
 648    if (!wd) return;
 649    disabled = !!disabled;
 650    if (wd->autohide_disabled == disabled) return;
 651    wd->autohide_disabled = disabled;
 652    wd->level = 0;
 653    if (wd->autohide_disabled)
 654      {
 655         _index_box_clear(obj, wd->bx[1], 1);
 656         _index_box_auto_fill(obj, wd->bx[0], 0);
 657         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 658      }
 659    else
 660      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 661
 662    //FIXME: Should be update indicator based on the indicator visiblility
 663 }
 664
 665 EAPI Eina_Bool
 666 elm_index_autohide_disabled_get(const Evas_Object *obj)
 667 {
 668    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 669    Widget_Data *wd = elm_widget_data_get(obj);
 670    if (!wd) return EINA_FALSE;
 671    return wd->autohide_disabled;
 672 }
 673
 674 EAPI void
 675 elm_index_item_level_set(Evas_Object *obj, int level)
 676 {
 677    ELM_CHECK_WIDTYPE(obj, widtype);
 678    Widget_Data *wd = elm_widget_data_get(obj);
 679    if (!wd) return;
 680    if (wd->level == level) return;
 681    wd->level = level;
 682 }
 683
 684 EAPI int
 685 elm_index_item_level_get(const Evas_Object *obj)
 686 {
 687    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 688    Widget_Data *wd = elm_widget_data_get(obj);
 689    if (!wd) return 0;
 690    return wd->level;
 691 }
 692
 693 EAPI void
 694 elm_index_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
 695 {
 696    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 697    Evas_Coord x, y, w, h;
 698    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 699    if (!wd) return;
 700
 701    //FIXME: Should be update indicator based on the autohidden status & indicator visiblility
 702
 703    if (selected)
 704      {
 705         evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 706         _sel_eval(WIDGET(it), x + (w/2), y + (h/2));
 707      }
 708    else
 709      _sel_eval(WIDGET(it), -99999, -9999);
 710
 711 }
 712
 713 EINA_DEPRECATED EAPI Elm_Object_Item *
 714 elm_index_item_selected_get(const Evas_Object *obj, int level)
 715 {
 716    return elm_index_selected_item_get(obj, level);
 717 }
 718
 719 EAPI Elm_Object_Item *
 720 elm_index_selected_item_get(const Evas_Object *obj, int level)
 721 {
 722    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 723    Widget_Data *wd = elm_widget_data_get(obj);
 724    Eina_List *l;
 725    Elm_Index_Item *it;
 726    if (!wd) return NULL;
 727    EINA_LIST_FOREACH(wd->items, l, it)
 728      {
 729         if ((it->selected) && (it->level == level))
 730           return (Elm_Object_Item *)it;
 731      }
 732    return NULL;
 733 }
 734
 735 EAPI Elm_Object_Item *
 736 elm_index_item_append(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 737 {
 738    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 739    Widget_Data *wd = elm_widget_data_get(obj);
 740    Elm_Index_Item *it;
 741    if (!wd) return NULL;
 742    it = _item_new(obj, letter, func, data);
 743    if (!it) return NULL;
 744    wd->items = eina_list_append(wd->items, it);
 745    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 746    return (Elm_Object_Item *)it;
 747 }
 748
 749 EAPI Elm_Object_Item *
 750 elm_index_item_prepend(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 751 {
 752    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 753    Widget_Data *wd = elm_widget_data_get(obj);
 754    Elm_Index_Item *it;
 755
 756    if (!wd) return NULL;
 757    it = _item_new(obj, letter, func, data);
 758    if (!it) return NULL;
 759    wd->items = eina_list_prepend(wd->items, it);
 760    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 761    return (Elm_Object_Item *)it;
 762 }
 763
 764 EINA_DEPRECATED EAPI Elm_Object_Item *
 765 elm_index_item_prepend_relative(Evas_Object *obj, const char *letter, const void *item, const Elm_Object_Item *relative)
 766 {
 767    return elm_index_item_insert_before(obj, (Elm_Object_Item *) relative, letter, NULL, item);
 768 }
 769
 770 EAPI Elm_Object_Item *
 771 elm_index_item_insert_after(Evas_Object *obj, Elm_Object_Item *after, const char *letter, Evas_Smart_Cb func, const void *data)
 772 {
 773    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 774    Widget_Data *wd = elm_widget_data_get(obj);
 775    Elm_Index_Item *it;
 776    if (!wd) return NULL;
 777    if (!after) return elm_index_item_append(obj, letter, func, data);
 778    it = _item_new(obj, letter, func, data);
 779    if (!it) return NULL;
 780    wd->items = eina_list_append_relative(wd->items, it, after);
 781    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 782    return (Elm_Object_Item *)it;
 783 }
 784
 785 EAPI Elm_Object_Item *
 786 elm_index_item_insert_before(Evas_Object *obj, Elm_Object_Item *before, const char *letter, Evas_Smart_Cb func, const void *data)
 787 {
 788    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 789    Widget_Data *wd = elm_widget_data_get(obj);
 790    Elm_Index_Item *it;
 791    if (!wd) return NULL;
 792    if (!before) return elm_index_item_prepend(obj, letter, func, data);
 793    it = _item_new(obj, letter, func, data);
 794    if (!it) return NULL;
 795    wd->items = eina_list_prepend_relative(wd->items, it, before);
 796    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 797    return (Elm_Object_Item *)it;
 798 }
 799
 800 EAPI Elm_Object_Item *
 801 elm_index_item_sorted_insert(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data, Eina_Compare_Cb cmp_func, Eina_Compare_Cb cmp_data_func)
 802 {
 803    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 804    Widget_Data *wd = elm_widget_data_get(obj);
 805    Eina_List *lnear;
 806    Elm_Index_Item *it;
 807    int cmp;
 808
 809    if (!wd) return NULL;
 810    if (!(wd->items))
 811      return elm_index_item_append(obj, letter, func, data);
 812
 813    it = _item_new(obj, letter, func, data);
 814    if (!it) return NULL;
 815
 816    lnear = eina_list_search_sorted_near_list(wd->items, cmp_func, it, &cmp);
 817    if (cmp < 0)
 818      wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 819    else if (cmp > 0)
 820      wd->items = eina_list_prepend_relative_list(wd->items, it, lnear);
 821    else
 822      {
 823         /* If cmp_data_func is not provided, append a duplicated item */
 824         if (!cmp_data_func)
 825           wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 826         else
 827           {
 828              Elm_Index_Item *p_it = eina_list_data_get(lnear);
 829              if (cmp_data_func(p_it->base.data, it->base.data) >= 0)
 830                p_it->base.data = it->base.data;
 831              _item_free(it);
 832              elm_widget_item_free(it);
 833           }
 834      }
 835    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 836    return (Elm_Object_Item *)it;
 837 }
 838
 839 EAPI Elm_Object_Item *
 840 elm_index_item_find(Evas_Object *obj, const void *data)
 841 {
 842    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 843    Widget_Data *wd = elm_widget_data_get(obj);
 844    if (!wd) return NULL;
 845    return (Elm_Object_Item *) _item_find(obj, data);
 846 }
 847
 848 EAPI void
 849 elm_index_item_clear(Evas_Object *obj)
 850 {
 851    ELM_CHECK_WIDTYPE(obj, widtype);
 852    Widget_Data *wd = elm_widget_data_get(obj);
 853    Elm_Index_Item *it;
 854    Eina_List *l, *clear = NULL;
 855    if (!wd) return;
 856    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 857    EINA_LIST_FOREACH(wd->items, l, it)
 858      {
 859         if (it->level != wd->level) continue;
 860         clear = eina_list_append(clear, it);
 861      }
 862    EINA_LIST_FREE(clear, it)
 863      {
 864         _item_free(it);
 865         elm_widget_item_free(it);
 866      }
 867 }
 868
 869 EAPI void
 870 elm_index_level_go(Evas_Object *obj, int level __UNUSED__)
 871 {
 872    ELM_CHECK_WIDTYPE(obj, widtype);
 873    Widget_Data *wd = elm_widget_data_get(obj);
 874    if (!wd) return;
 875    _index_box_auto_fill(obj, wd->bx[0], 0);
 876    if (wd->level == 1) _index_box_auto_fill(obj, wd->bx[1], 1);
 877 }
 878
 879 EAPI void
 880 elm_index_indicator_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 881 {
 882    ELM_CHECK_WIDTYPE(obj, widtype);
 883    Widget_Data *wd = elm_widget_data_get(obj);
 884    if (!wd) return;
 885
 886    disabled = !!disabled;
 887    if (wd->indicator_disabled == disabled) return;
 888    wd->indicator_disabled = disabled;
 889    if (!wd->items) return;
 890    if (disabled)
 891      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 892    else
 893      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 894 }
 895
 896 EAPI Eina_Bool
 897 elm_index_indicator_disabled_get(const Evas_Object *obj)
 898 {
 899    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 900    Widget_Data *wd = elm_widget_data_get(obj);
 901    if (!wd) return EINA_FALSE;
 902
 903    return wd->indicator_disabled;
 904 }
 905
 906 EAPI const char *
 907 elm_index_item_letter_get(const Elm_Object_Item *it)
 908 {
 909    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 910    return ((Elm_Index_Item *)it)->letter;
 911 }
 912
 913 EAPI void
 914 elm_index_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 915 {
 916    ELM_CHECK_WIDTYPE(obj, widtype);
 917    Widget_Data *wd = elm_widget_data_get(obj);
 918    if (!wd) return;
 919
 920    horizontal = !!horizontal;
 921    if (horizontal == wd->horizontal) return;
 922    wd->horizontal = horizontal;
 923    _theme_hook(obj);
 924 }
 925
 926 EAPI Eina_Bool
 927 elm_index_horizontal_get(const Evas_Object *obj)
 928 {
 929    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 930    Widget_Data *wd = elm_widget_data_get(obj);
 931    if (!wd) return EINA_FALSE;
 932    return wd->horizontal;
 933 }
 934
 935