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_escaped_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 && it->letter)
 440                last = strdup(it->letter);
 441              else
 442                {
 443                   if (!label && last) label = strdup(last);
 444                   else
 445                     {
 446                        if (label && last)
 447                          {
 448                             label = realloc(label, strlen(label) +
 449                                             strlen(last) + 1);
 450                             if (!label) return;
 451                             strcat(label, last);
 452                          }
 453                     }
 454                   free(last);
 455                   if (it->letter) last = strdup(it->letter);
 456                }
 457           }
 458      }
 459    if (!label) label = strdup("");
 460    if (!last) last = strdup("");
 461    edje_object_part_text_escaped_set(wd->base, "elm.text.body", label);
 462    edje_object_part_text_escaped_set(wd->base, "elm.text", last);
 463    free(label);
 464    free(last);
 465 }
 466
 467 static void
 468 _wheel(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
 469 {
 470    Widget_Data *wd = elm_widget_data_get(data);
 471    //   Evas_Event_Mouse_Wheel *ev = event_info;
 472    //   Evas_Object *obj = o;
 473    if (!wd) return;
 474 }
 475
 476 static void
 477 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 478 {
 479    Widget_Data *wd = elm_widget_data_get(data);
 480    Evas_Event_Mouse_Down *ev = event_info;
 481    Evas_Coord x, y, w;
 482    if (!wd) return;
 483    if (ev->button != 1) return;
 484    wd->down = 1;
 485    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 486    wd->dx = ev->canvas.x - x;
 487    wd->dy = ev->canvas.y - y;
 488    if (!wd->autohide_disabled)
 489      {
 490         _index_box_clear(data, wd->bx[1], 1);
 491         _index_box_auto_fill(data, wd->bx[0], 0);
 492         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 493      }
 494    _sel_eval(data, ev->canvas.x, ev->canvas.y);
 495    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer",
 496                                    (!edje_object_mirrored_get(wd->base)) ? wd->dx : (wd->dx - w), wd->dy);
 497    if (wd->items && !wd->indicator_disabled)
 498      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 499 }
 500
 501 static void
 502 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 503 {
 504    Widget_Data *wd = elm_widget_data_get(data);
 505    Evas_Event_Mouse_Up *ev = event_info;
 506    Elm_Object_Item *item;
 507    Elm_Index_Item *id_item;
 508    if (!wd) return;
 509    if (ev->button != 1) return;
 510    wd->down = 0;
 511    item = elm_index_selected_item_get(data, wd->level);
 512    if (item)
 513      {
 514         evas_object_smart_callback_call(data, SIG_SELECTED, item);
 515         id_item = (Elm_Index_Item *)item;
 516         if (id_item->func)
 517           id_item->func((void *)id_item->base.data, WIDGET(id_item), id_item);
 518      }
 519    if (!wd->autohide_disabled)
 520      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 521    edje_object_signal_emit(wd->base, "elm,state,level,0", "elm");
 522    if (wd->items && !wd->indicator_disabled)
 523      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 524 }
 525
 526 static void
 527 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 528 {
 529    Widget_Data *wd = elm_widget_data_get(data);
 530    Evas_Event_Mouse_Move *ev = event_info;
 531    Evas_Coord minw = 0, minh = 0, x, y, dx, adx, w;
 532    char buf[1024];
 533    if (!wd) return;
 534    if (!wd->down) return;
 535    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 536    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 537    x = ev->cur.canvas.x - x;
 538    y = ev->cur.canvas.y - y;
 539    dx = x - wd->dx;
 540    adx = dx;
 541    if (adx < 0) adx = -dx;
 542    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer"
 543                                    , (!edje_object_mirrored_get(wd->base)) ? x : (x - w), y);
 544    if (!wd->horizontal)
 545      {
 546         if (adx > minw)
 547           {
 548              if (!wd->level)
 549                {
 550                   wd->level = 1;
 551                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 552                   edje_object_signal_emit(wd->base, buf, "elm");
 553                   evas_object_smart_callback_call(data, SIG_LEVEL_UP, NULL);
 554                }
 555           }
 556         else
 557           {
 558              if (wd->level == 1)
 559                {
 560                   wd->level = 0;
 561                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 562                   edje_object_signal_emit(wd->base, buf, "elm");
 563                   evas_object_smart_callback_call(data, SIG_LEVEL_DOWN, NULL);
 564                }
 565           }
 566      }
 567    _sel_eval(data, ev->cur.canvas.x, ev->cur.canvas.y);
 568 }
 569
 570 EAPI Evas_Object *
 571 elm_index_add(Evas_Object *parent)
 572 {
 573    Evas_Object *obj;
 574    Evas_Object *o;
 575    Evas *e;
 576    Widget_Data *wd;
 577    Evas_Coord minw, minh;
 578
 579    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 580
 581    ELM_SET_WIDTYPE(widtype, "index");
 582    elm_widget_type_set(obj, "index");
 583    elm_widget_sub_object_add(parent, obj);
 584    elm_widget_data_set(obj, wd);
 585    elm_widget_del_hook_set(obj, _del_hook);
 586    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 587    elm_widget_theme_hook_set(obj, _theme_hook);
 588    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 589    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 590    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 591    elm_widget_can_focus_set(obj, EINA_FALSE);
 592
 593    wd->indicator_disabled = EINA_FALSE;
 594    wd->horizontal = EINA_FALSE;
 595    wd->autohide_disabled = EINA_FALSE;
 596
 597    wd->base = edje_object_add(e);
 598    _elm_theme_object_set(obj, wd->base, "index", "base/vertical", "default");
 599    elm_widget_resize_object_set(obj, wd->base);
 600
 601    o = evas_object_rectangle_add(e);
 602    wd->event[0] = o;
 603    evas_object_color_set(o, 0, 0, 0, 0);
 604    minw = minh = 0;
 605    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 606    evas_object_size_hint_min_set(o, minw, minh);
 607    edje_object_part_swallow(wd->base, "elm.swallow.event.0", o);
 608    elm_widget_sub_object_add(obj, o);
 609    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL, _wheel, obj);
 610    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN, _mouse_down, obj);
 611    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_UP, _mouse_up, obj);
 612    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move, obj);
 613    evas_object_show(o);
 614    if (edje_object_part_exists(wd->base, "elm.swallow.event.1"))
 615      {
 616         o = evas_object_rectangle_add(e);
 617         wd->event[1] = o;
 618         evas_object_color_set(o, 0, 0, 0, 0);
 619         evas_object_size_hint_min_set(o, minw, minh);
 620         edje_object_part_swallow(wd->base, "elm.swallow.event.1", o);
 621         elm_widget_sub_object_add(obj, o);
 622      }
 623
 624    wd->bx[0] = evas_object_box_add(e);
 625    evas_object_box_layout_set(wd->bx[0], _layout, wd, NULL);
 626    elm_widget_sub_object_add(obj, wd->bx[0]);
 627    edje_object_part_swallow(wd->base, "elm.swallow.index.0", wd->bx[0]);
 628    evas_object_show(wd->bx[0]);
 629
 630    if (edje_object_part_exists(wd->base, "elm.swallow.index.1"))
 631      {
 632         wd->bx[1] = evas_object_box_add(e);
 633         evas_object_box_layout_set(wd->bx[1], _layout, wd, NULL);
 634         elm_widget_sub_object_add(obj, wd->bx[1]);
 635         edje_object_part_swallow(wd->base, "elm.swallow.index.1", wd->bx[1]);
 636         evas_object_show(wd->bx[1]);
 637      }
 638
 639    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 640
 641    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 642    _sizing_eval(obj);
 643    return obj;
 644 }
 645
 646 EAPI void
 647 elm_index_autohide_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 648 {
 649    ELM_CHECK_WIDTYPE(obj, widtype);
 650    Widget_Data *wd = elm_widget_data_get(obj);
 651    if (!wd) return;
 652    disabled = !!disabled;
 653    if (wd->autohide_disabled == disabled) return;
 654    wd->autohide_disabled = disabled;
 655    wd->level = 0;
 656    if (wd->autohide_disabled)
 657      {
 658         _index_box_clear(obj, wd->bx[1], 1);
 659         _index_box_auto_fill(obj, wd->bx[0], 0);
 660         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 661      }
 662    else
 663      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 664
 665    //FIXME: Should be update indicator based on the indicator visiblility
 666 }
 667
 668 EAPI Eina_Bool
 669 elm_index_autohide_disabled_get(const Evas_Object *obj)
 670 {
 671    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 672    Widget_Data *wd = elm_widget_data_get(obj);
 673    if (!wd) return EINA_FALSE;
 674    return wd->autohide_disabled;
 675 }
 676
 677 EAPI void
 678 elm_index_item_level_set(Evas_Object *obj, int level)
 679 {
 680    ELM_CHECK_WIDTYPE(obj, widtype);
 681    Widget_Data *wd = elm_widget_data_get(obj);
 682    if (!wd) return;
 683    if (wd->level == level) return;
 684    wd->level = level;
 685 }
 686
 687 EAPI int
 688 elm_index_item_level_get(const Evas_Object *obj)
 689 {
 690    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 691    Widget_Data *wd = elm_widget_data_get(obj);
 692    if (!wd) return 0;
 693    return wd->level;
 694 }
 695
 696 EAPI void
 697 elm_index_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
 698 {
 699    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 700    Evas_Coord x, y, w, h;
 701    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 702    if (!wd) return;
 703
 704    //FIXME: Should be update indicator based on the autohidden status & indicator visiblility
 705
 706    if (selected)
 707      {
 708         evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 709         _sel_eval(WIDGET(it), x + (w/2), y + (h/2));
 710      }
 711    else
 712      _sel_eval(WIDGET(it), -99999, -9999);
 713
 714 }
 715
 716 EAPI Elm_Object_Item *
 717 elm_index_selected_item_get(const Evas_Object *obj, int level)
 718 {
 719    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 720    Widget_Data *wd = elm_widget_data_get(obj);
 721    Eina_List *l;
 722    Elm_Index_Item *it;
 723    if (!wd) return NULL;
 724    EINA_LIST_FOREACH(wd->items, l, it)
 725      {
 726         if ((it->selected) && (it->level == level))
 727           return (Elm_Object_Item *)it;
 728      }
 729    return NULL;
 730 }
 731
 732 EAPI Elm_Object_Item *
 733 elm_index_item_append(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 734 {
 735    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 736    Widget_Data *wd = elm_widget_data_get(obj);
 737    Elm_Index_Item *it;
 738    if (!wd) return NULL;
 739    it = _item_new(obj, letter, func, data);
 740    if (!it) return NULL;
 741    wd->items = eina_list_append(wd->items, it);
 742    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 743    return (Elm_Object_Item *)it;
 744 }
 745
 746 EAPI Elm_Object_Item *
 747 elm_index_item_prepend(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 748 {
 749    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 750    Widget_Data *wd = elm_widget_data_get(obj);
 751    Elm_Index_Item *it;
 752
 753    if (!wd) return NULL;
 754    it = _item_new(obj, letter, func, data);
 755    if (!it) return NULL;
 756    wd->items = eina_list_prepend(wd->items, it);
 757    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 758    return (Elm_Object_Item *)it;
 759 }
 760
 761 EINA_DEPRECATED EAPI Elm_Object_Item *
 762 elm_index_item_prepend_relative(Evas_Object *obj, const char *letter, const void *item, const Elm_Object_Item *relative)
 763 {
 764    return elm_index_item_insert_before(obj, (Elm_Object_Item *) relative, letter, NULL, item);
 765 }
 766
 767 EAPI Elm_Object_Item *
 768 elm_index_item_insert_after(Evas_Object *obj, Elm_Object_Item *after, const char *letter, Evas_Smart_Cb func, const void *data)
 769 {
 770    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 771    Widget_Data *wd = elm_widget_data_get(obj);
 772    Elm_Index_Item *it;
 773    if (!wd) return NULL;
 774    if (!after) return elm_index_item_append(obj, letter, func, data);
 775    it = _item_new(obj, letter, func, data);
 776    if (!it) return NULL;
 777    wd->items = eina_list_append_relative(wd->items, it, after);
 778    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 779    return (Elm_Object_Item *)it;
 780 }
 781
 782 EAPI Elm_Object_Item *
 783 elm_index_item_insert_before(Evas_Object *obj, Elm_Object_Item *before, const char *letter, Evas_Smart_Cb func, const void *data)
 784 {
 785    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 786    Widget_Data *wd = elm_widget_data_get(obj);
 787    Elm_Index_Item *it;
 788    if (!wd) return NULL;
 789    if (!before) return elm_index_item_prepend(obj, letter, func, data);
 790    it = _item_new(obj, letter, func, data);
 791    if (!it) return NULL;
 792    wd->items = eina_list_prepend_relative(wd->items, it, before);
 793    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 794    return (Elm_Object_Item *)it;
 795 }
 796
 797 EAPI Elm_Object_Item *
 798 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)
 799 {
 800    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 801    Widget_Data *wd = elm_widget_data_get(obj);
 802    Eina_List *lnear;
 803    Elm_Index_Item *it;
 804    int cmp;
 805
 806    if (!wd) return NULL;
 807    if (!(wd->items))
 808      return elm_index_item_append(obj, letter, func, data);
 809
 810    it = _item_new(obj, letter, func, data);
 811    if (!it) return NULL;
 812
 813    lnear = eina_list_search_sorted_near_list(wd->items, cmp_func, it, &cmp);
 814    if (cmp < 0)
 815      wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 816    else if (cmp > 0)
 817      wd->items = eina_list_prepend_relative_list(wd->items, it, lnear);
 818    else
 819      {
 820         /* If cmp_data_func is not provided, append a duplicated item */
 821         if (!cmp_data_func)
 822           wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 823         else
 824           {
 825              Elm_Index_Item *p_it = eina_list_data_get(lnear);
 826              if (cmp_data_func(p_it->base.data, it->base.data) >= 0)
 827                p_it->base.data = it->base.data;
 828              _item_free(it);
 829              elm_widget_item_free(it);
 830           }
 831      }
 832    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 833    return (Elm_Object_Item *)it;
 834 }
 835
 836 EAPI Elm_Object_Item *
 837 elm_index_item_find(Evas_Object *obj, const void *data)
 838 {
 839    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 840    Widget_Data *wd = elm_widget_data_get(obj);
 841    if (!wd) return NULL;
 842    return (Elm_Object_Item *) _item_find(obj, data);
 843 }
 844
 845 EAPI void
 846 elm_index_item_clear(Evas_Object *obj)
 847 {
 848    ELM_CHECK_WIDTYPE(obj, widtype);
 849    Widget_Data *wd = elm_widget_data_get(obj);
 850    Elm_Index_Item *it;
 851    Eina_List *l, *clear = NULL;
 852    if (!wd) return;
 853    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 854    EINA_LIST_FOREACH(wd->items, l, it)
 855      {
 856         if (it->level != wd->level) continue;
 857         clear = eina_list_append(clear, it);
 858      }
 859    EINA_LIST_FREE(clear, it)
 860      {
 861         _item_free(it);
 862         elm_widget_item_free(it);
 863      }
 864 }
 865
 866 EAPI void
 867 elm_index_level_go(Evas_Object *obj, int level __UNUSED__)
 868 {
 869    ELM_CHECK_WIDTYPE(obj, widtype);
 870    Widget_Data *wd = elm_widget_data_get(obj);
 871    if (!wd) return;
 872    _index_box_auto_fill(obj, wd->bx[0], 0);
 873    if (wd->level == 1) _index_box_auto_fill(obj, wd->bx[1], 1);
 874 }
 875
 876 EAPI void
 877 elm_index_indicator_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 878 {
 879    ELM_CHECK_WIDTYPE(obj, widtype);
 880    Widget_Data *wd = elm_widget_data_get(obj);
 881    if (!wd) return;
 882
 883    disabled = !!disabled;
 884    if (wd->indicator_disabled == disabled) return;
 885    wd->indicator_disabled = disabled;
 886    if (!wd->items) return;
 887    if (disabled)
 888      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 889    else
 890      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 891 }
 892
 893 EAPI Eina_Bool
 894 elm_index_indicator_disabled_get(const Evas_Object *obj)
 895 {
 896    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 897    Widget_Data *wd = elm_widget_data_get(obj);
 898    if (!wd) return EINA_FALSE;
 899
 900    return wd->indicator_disabled;
 901 }
 902
 903 EAPI const char *
 904 elm_index_item_letter_get(const Elm_Object_Item *it)
 905 {
 906    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 907    return ((Elm_Index_Item *)it)->letter;
 908 }
 909
 910 EAPI void
 911 elm_index_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 912 {
 913    ELM_CHECK_WIDTYPE(obj, widtype);
 914    Widget_Data *wd = elm_widget_data_get(obj);
 915    if (!wd) return;
 916
 917    horizontal = !!horizontal;
 918    if (horizontal == wd->horizontal) return;
 919    wd->horizontal = horizontal;
 920    _theme_hook(obj);
 921 }
 922
 923 EAPI Eina_Bool
 924 elm_index_horizontal_get(const Evas_Object *obj)
 925 {
 926    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 927    Widget_Data *wd = elm_widget_data_get(obj);
 928    if (!wd) return EINA_FALSE;
 929    return wd->horizontal;
 930 }
 931
 932