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         if (i & 0x1)
 272           _elm_theme_object_set(obj, o, "index", "item_odd/vertical", elm_widget_style_get(obj));
 273         else
 274           _elm_theme_object_set(obj, o, "index", "item/vertical", elm_widget_style_get(obj));
 275         edje_object_part_text_set(o, "elm.text", it->letter);
 276         edje_object_size_min_restricted_calc(o, &mw, &mh, 0, 0);
 277         evas_object_size_hint_min_set(o, mw, mh);
 278         evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 279         evas_object_size_hint_align_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
 280         elm_widget_sub_object_add(obj, o);
 281         evas_object_box_append(box, o);
 282         stacking = edje_object_data_get(o, "stacking");
 283         if (stacking)
 284           {
 285              if (!strcmp(stacking, "below")) evas_object_lower(o);
 286              else if (!strcmp(stacking, "above")) evas_object_raise(o);
 287           }
 288         evas_object_show(o);
 289         i++;
 290         evas_object_smart_calculate(box); // force a calc so we know the size
 291         evas_object_size_hint_min_get(box, &mw, &mh);
 292         if (mh > h)
 293           {
 294              _index_box_clear(obj, box, level);
 295              if (i > 0)
 296                {
 297                   // FIXME: only i objects fit! try again. overflows right now
 298                }
 299           }
 300      }
 301    evas_object_smart_calculate(box);
 302    wd->level_active[level] = 1;
 303 }
 304
 305 static void
 306 _index_box_clear(Evas_Object *obj, Evas_Object *box __UNUSED__, int level)
 307 {
 308    Widget_Data *wd = elm_widget_data_get(obj);
 309    Eina_List *l;
 310    Elm_Index_Item *it;
 311    if (!wd) return;
 312    if (!wd->level_active[level]) return;
 313    EINA_LIST_FOREACH(wd->items, l, it)
 314      {
 315         if (!VIEW(it)) continue;
 316         if (it->level != level) continue;
 317         evas_object_del(VIEW(it));
 318         VIEW(it) = NULL;
 319      }
 320    wd->level_active[level] = 0;
 321 }
 322
 323 static Eina_Bool
 324 _delay_change(void *data)
 325 {
 326    Widget_Data *wd = elm_widget_data_get(data);
 327    Elm_Object_Item *item;
 328    if (!wd) return ECORE_CALLBACK_CANCEL;
 329    wd->delay = NULL;
 330    item = elm_index_selected_item_get(data, wd->level);
 331    if (item) evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, item);
 332    return ECORE_CALLBACK_CANCEL;
 333 }
 334
 335 static void
 336 _sel_eval(Evas_Object *obj, Evas_Coord evx, Evas_Coord evy)
 337 {
 338    Widget_Data *wd = elm_widget_data_get(obj);
 339    Elm_Index_Item *it, *it_closest, *it_last;
 340    Eina_List *l;
 341    Evas_Coord x, y, w, h, bx, by, bw, bh, xx, yy;
 342    double cdv = 0.5;
 343    Evas_Coord dist;
 344    char *label = NULL, *last = NULL;
 345    int i;
 346    if (!wd) return;
 347    for (i = 0; i <= wd->level; i++)
 348      {
 349         it_last = NULL;
 350         it_closest  = NULL;
 351         dist = 0x7fffffff;
 352         evas_object_geometry_get(wd->bx[i], &bx, &by, &bw, &bh);
 353         EINA_LIST_FOREACH(wd->items, l, it)
 354           {
 355              if (!((it->level == i) && (VIEW(it)))) continue;
 356              if ((VIEW(it)) && (it->level != wd->level))
 357                {
 358                   if (it->selected)
 359                     {
 360                        it_closest = it;
 361                        break;
 362                     }
 363                   continue;
 364                }
 365              if (it->selected)
 366                {
 367                   it_last = it;
 368                   it->selected = 0;
 369                }
 370              evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 371              xx = x + (w / 2);
 372              yy = y + (h / 2);
 373              x = evx - xx;
 374              y = evy - yy;
 375              x = (x * x) + (y * y);
 376              if ((x < dist) || (!it_closest))
 377                {
 378                   if (wd->horizontal)
 379                     cdv = (double)(xx - bx) / (double)bw;
 380                   else
 381                     cdv = (double)(yy - by) / (double)bh;
 382                   it_closest = it;
 383                   dist = x;
 384                }
 385           }
 386         if ((i == 0) && (wd->level == 0))
 387           edje_object_part_drag_value_set(wd->base, "elm.dragable.index.1",
 388                                           cdv, cdv);
 389         if (it_closest) it_closest->selected = 1;
 390         if (it_closest != it_last)
 391           {
 392              if (it_last)
 393                {
 394                   const char *stacking, *selectraise;
 395
 396                   it = it_last;
 397                   edje_object_signal_emit(VIEW(it), "elm,state,inactive", "elm");
 398                   stacking = edje_object_data_get(VIEW(it), "stacking");
 399                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 400                   if ((selectraise) && (!strcmp(selectraise, "on")))
 401                     {
 402                        if ((stacking) && (!strcmp(stacking, "below")))
 403                          evas_object_lower(VIEW(it));
 404                     }
 405                }
 406              if (it_closest)
 407                {
 408                   const char *selectraise;
 409
 410                   it = it_closest;
 411                   edje_object_signal_emit(VIEW(it), "elm,state,active", "elm");
 412                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 413                   if ((selectraise) && (!strcmp(selectraise, "on")))
 414                     evas_object_raise(VIEW(it));
 415                   evas_object_smart_callback_call((void *)obj, SIG_CHANGED, (void *)it);
 416                   if (wd->delay) ecore_timer_del(wd->delay);
 417                   wd->delay = ecore_timer_add(0.2, _delay_change, obj);
 418                }
 419           }
 420         if (it_closest)
 421           {
 422              it = it_closest;
 423              if (!last)
 424                last = strdup(it->letter);
 425              else
 426                {
 427                   if (!label) label = strdup(last);
 428                   else
 429                     {
 430                        /* FIXME: realloc return NULL if the request fails */
 431                        label = realloc(label, strlen(label) + strlen(last) + 1);
 432                        strcat(label, last);
 433                     }
 434                   free(last);
 435                   last = strdup(it->letter);
 436                }
 437           }
 438      }
 439    if (!label) label = strdup("");
 440    if (!last) last = strdup("");
 441    edje_object_part_text_set(wd->base, "elm.text.body", label);
 442    edje_object_part_text_set(wd->base, "elm.text", last);
 443    free(label);
 444    free(last);
 445 }
 446
 447 static void
 448 _wheel(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
 449 {
 450    Widget_Data *wd = elm_widget_data_get(data);
 451    //   Evas_Event_Mouse_Wheel *ev = event_info;
 452    //   Evas_Object *obj = o;
 453    if (!wd) return;
 454 }
 455
 456 static void
 457 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 458 {
 459    Widget_Data *wd = elm_widget_data_get(data);
 460    Evas_Event_Mouse_Down *ev = event_info;
 461    Evas_Coord x, y, w;
 462    if (!wd) return;
 463    if (ev->button != 1) return;
 464    wd->down = 1;
 465    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 466    wd->dx = ev->canvas.x - x;
 467    wd->dy = ev->canvas.y - y;
 468    if (!wd->autohide_disabled)
 469      {
 470         _index_box_clear(data, wd->bx[1], 1);
 471         _index_box_auto_fill(data, wd->bx[0], 0);
 472         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 473      }
 474    _sel_eval(data, ev->canvas.x, ev->canvas.y);
 475    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer",
 476                                    (!edje_object_mirrored_get(wd->base)) ? wd->dx : (wd->dx - w), wd->dy);
 477    if (wd->items && !wd->indicator_disabled)
 478      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 479 }
 480
 481 static void
 482 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 483 {
 484    Widget_Data *wd = elm_widget_data_get(data);
 485    Evas_Event_Mouse_Up *ev = event_info;
 486    Elm_Object_Item *item;
 487    Elm_Index_Item *id_item;
 488    if (!wd) return;
 489    if (ev->button != 1) return;
 490    wd->down = 0;
 491    item = elm_index_selected_item_get(data, wd->level);
 492    if (item)
 493      {
 494         evas_object_smart_callback_call(data, SIG_SELECTED, item);
 495         id_item = (Elm_Index_Item *)item;
 496         if (id_item->func)
 497           id_item->func((void *)id_item->base.data, WIDGET(id_item), id_item);
 498      }
 499    if (!wd->autohide_disabled)
 500      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 501    edje_object_signal_emit(wd->base, "elm,state,level,0", "elm");
 502    if (wd->items && !wd->indicator_disabled)
 503      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 504 }
 505
 506 static void
 507 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 508 {
 509    Widget_Data *wd = elm_widget_data_get(data);
 510    Evas_Event_Mouse_Move *ev = event_info;
 511    Evas_Coord minw = 0, minh = 0, x, y, dx, adx, w;
 512    char buf[1024];
 513    if (!wd) return;
 514    if (!wd->down) return;
 515    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 516    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 517    x = ev->cur.canvas.x - x;
 518    y = ev->cur.canvas.y - y;
 519    dx = x - wd->dx;
 520    adx = dx;
 521    if (adx < 0) adx = -dx;
 522    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer"
 523                                    , (!edje_object_mirrored_get(wd->base)) ? x : (x - w), y);
 524    if (!wd->horizontal)
 525      {
 526         if (adx > minw)
 527           {
 528              if (!wd->level)
 529                {
 530                   wd->level = 1;
 531                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 532                   edje_object_signal_emit(wd->base, buf, "elm");
 533                   evas_object_smart_callback_call(data, SIG_LEVEL_UP, NULL);
 534                }
 535           }
 536         else
 537           {
 538              if (wd->level == 1)
 539                {
 540                   wd->level = 0;
 541                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 542                   edje_object_signal_emit(wd->base, buf, "elm");
 543                   evas_object_smart_callback_call(data, SIG_LEVEL_DOWN, NULL);
 544                }
 545           }
 546      }
 547    _sel_eval(data, ev->cur.canvas.x, ev->cur.canvas.y);
 548 }
 549
 550 EAPI Evas_Object *
 551 elm_index_add(Evas_Object *parent)
 552 {
 553    Evas_Object *obj;
 554    Evas_Object *o;
 555    Evas *e;
 556    Widget_Data *wd;
 557    Evas_Coord minw, minh;
 558
 559    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 560
 561    ELM_SET_WIDTYPE(widtype, "index");
 562    elm_widget_type_set(obj, "index");
 563    elm_widget_sub_object_add(parent, obj);
 564    elm_widget_data_set(obj, wd);
 565    elm_widget_del_hook_set(obj, _del_hook);
 566    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 567    elm_widget_theme_hook_set(obj, _theme_hook);
 568    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 569    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 570    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 571    elm_widget_can_focus_set(obj, EINA_FALSE);
 572
 573    wd->indicator_disabled = EINA_FALSE;
 574    wd->horizontal = EINA_FALSE;
 575    wd->autohide_disabled = EINA_FALSE;
 576
 577    wd->base = edje_object_add(e);
 578    _elm_theme_object_set(obj, wd->base, "index", "base/vertical", "default");
 579    elm_widget_resize_object_set(obj, wd->base);
 580
 581    o = evas_object_rectangle_add(e);
 582    wd->event[0] = o;
 583    evas_object_color_set(o, 0, 0, 0, 0);
 584    minw = minh = 0;
 585    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 586    evas_object_size_hint_min_set(o, minw, minh);
 587    edje_object_part_swallow(wd->base, "elm.swallow.event.0", o);
 588    elm_widget_sub_object_add(obj, o);
 589    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL, _wheel, obj);
 590    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN, _mouse_down, obj);
 591    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_UP, _mouse_up, obj);
 592    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move, obj);
 593    evas_object_show(o);
 594    if (edje_object_part_exists(wd->base, "elm.swallow.event.1"))
 595      {
 596         o = evas_object_rectangle_add(e);
 597         wd->event[1] = o;
 598         evas_object_color_set(o, 0, 0, 0, 0);
 599         evas_object_size_hint_min_set(o, minw, minh);
 600         edje_object_part_swallow(wd->base, "elm.swallow.event.1", o);
 601         elm_widget_sub_object_add(obj, o);
 602      }
 603
 604    wd->bx[0] = evas_object_box_add(e);
 605    evas_object_box_layout_set(wd->bx[0], _layout, wd, NULL);
 606    elm_widget_sub_object_add(obj, wd->bx[0]);
 607    edje_object_part_swallow(wd->base, "elm.swallow.index.0", wd->bx[0]);
 608    evas_object_show(wd->bx[0]);
 609
 610    if (edje_object_part_exists(wd->base, "elm.swallow.index.1"))
 611      {
 612         wd->bx[1] = evas_object_box_add(e);
 613         evas_object_box_layout_set(wd->bx[1], _layout, wd, NULL);
 614         elm_widget_sub_object_add(obj, wd->bx[1]);
 615         edje_object_part_swallow(wd->base, "elm.swallow.index.1", wd->bx[1]);
 616         evas_object_show(wd->bx[1]);
 617      }
 618
 619    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 620
 621    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 622    _sizing_eval(obj);
 623    return obj;
 624 }
 625
 626 EINA_DEPRECATED EAPI void
 627 elm_index_active_set(Evas_Object *obj, Eina_Bool active)
 628 {
 629    elm_index_autohide_disabled_set(obj, !active);
 630 }
 631
 632 EINA_DEPRECATED EAPI Eina_Bool
 633 elm_index_active_get(const Evas_Object *obj)
 634 {
 635    return !elm_index_autohide_disabled_get(obj);
 636 }
 637
 638 EAPI void
 639 elm_index_autohide_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 640 {
 641    ELM_CHECK_WIDTYPE(obj, widtype);
 642    Widget_Data *wd = elm_widget_data_get(obj);
 643    if (!wd) return;
 644    disabled = !!disabled;
 645    if (wd->autohide_disabled == disabled) return;
 646    wd->autohide_disabled = disabled;
 647    wd->level = 0;
 648    if (wd->autohide_disabled)
 649      {
 650         _index_box_clear(obj, wd->bx[1], 1);
 651         _index_box_auto_fill(obj, wd->bx[0], 0);
 652         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 653      }
 654    else
 655      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 656 }
 657
 658 EAPI Eina_Bool
 659 elm_index_autohide_disabled_get(const Evas_Object *obj)
 660 {
 661    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 662    Widget_Data *wd = elm_widget_data_get(obj);
 663    if (!wd) return EINA_FALSE;
 664    return wd->autohide_disabled;
 665 }
 666
 667 EAPI void
 668 elm_index_item_level_set(Evas_Object *obj, int level)
 669 {
 670    ELM_CHECK_WIDTYPE(obj, widtype);
 671    Widget_Data *wd = elm_widget_data_get(obj);
 672    if (!wd) return;
 673    if (wd->level == level) return;
 674    wd->level = level;
 675 }
 676
 677 EAPI int
 678 elm_index_item_level_get(const Evas_Object *obj)
 679 {
 680    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 681    Widget_Data *wd = elm_widget_data_get(obj);
 682    if (!wd) return 0;
 683    return wd->level;
 684 }
 685
 686 EINA_DEPRECATED EAPI Elm_Object_Item *
 687 elm_index_item_selected_get(const Evas_Object *obj, int level)
 688 {
 689    return elm_index_selected_item_get(obj, level);
 690 }
 691
 692 EAPI Elm_Object_Item *
 693 elm_index_selected_item_get(const Evas_Object *obj, int level)
 694 {
 695    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 696    Widget_Data *wd = elm_widget_data_get(obj);
 697    Eina_List *l;
 698    Elm_Index_Item *it;
 699    if (!wd) return NULL;
 700    EINA_LIST_FOREACH(wd->items, l, it)
 701      {
 702         if ((it->selected) && (it->level == level))
 703           return (Elm_Object_Item *)it;
 704      }
 705    return NULL;
 706 }
 707
 708 EAPI Elm_Object_Item *
 709 elm_index_item_append(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 710 {
 711    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 712    Widget_Data *wd = elm_widget_data_get(obj);
 713    Elm_Index_Item *it;
 714    if (!wd) return NULL;
 715    it = _item_new(obj, letter, func, data);
 716    if (!it) return NULL;
 717    wd->items = eina_list_append(wd->items, it);
 718    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 719    return (Elm_Object_Item *)it;
 720 }
 721
 722 EAPI Elm_Object_Item *
 723 elm_index_item_prepend(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 724 {
 725    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 726    Widget_Data *wd = elm_widget_data_get(obj);
 727    Elm_Index_Item *it;
 728
 729    if (!wd) return NULL;
 730    it = _item_new(obj, letter, func, data);
 731    if (!it) return NULL;
 732    wd->items = eina_list_prepend(wd->items, it);
 733    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 734    return (Elm_Object_Item *)it;
 735 }
 736
 737 EINA_DEPRECATED EAPI Elm_Object_Item *
 738 elm_index_item_append_relative(Evas_Object *obj, const char *letter, const void *item, const Elm_Object_Item *relative)
 739 {
 740    return elm_index_item_insert_after(obj, (Elm_Object_Item *) relative, letter, NULL, item);
 741 }
 742
 743 EINA_DEPRECATED EAPI Elm_Object_Item *
 744 elm_index_item_prepend_relative(Evas_Object *obj, const char *letter, const void *item, const Elm_Object_Item *relative)
 745 {
 746    return elm_index_item_insert_before(obj, (Elm_Object_Item *) relative, letter, NULL, item);
 747 }
 748
 749 EAPI Elm_Object_Item *
 750 elm_index_item_insert_after(Evas_Object *obj, Elm_Object_Item *after, 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    if (!wd) return NULL;
 756    if (!after) return elm_index_item_append(obj, letter, func, data);
 757    it = _item_new(obj, letter, func, data);
 758    if (!it) return NULL;
 759    wd->items = eina_list_append_relative(wd->items, it, after);
 760    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 761    return (Elm_Object_Item *)it;
 762 }
 763
 764 EAPI Elm_Object_Item *
 765 elm_index_item_insert_before(Evas_Object *obj, Elm_Object_Item *before, const char *letter, Evas_Smart_Cb func, const void *data)
 766 {
 767    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 768    Widget_Data *wd = elm_widget_data_get(obj);
 769    Elm_Index_Item *it;
 770    if (!wd) return NULL;
 771    if (!before) return elm_index_item_prepend(obj, letter, func, data);
 772    it = _item_new(obj, letter, func, data);
 773    if (!it) return NULL;
 774    wd->items = eina_list_prepend_relative(wd->items, it, before);
 775    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 776    return (Elm_Object_Item *)it;
 777 }
 778
 779 EAPI Elm_Object_Item *
 780 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)
 781 {
 782    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 783    Widget_Data *wd = elm_widget_data_get(obj);
 784    Eina_List *lnear;
 785    Elm_Index_Item *it;
 786    int cmp;
 787
 788    if (!wd) return NULL;
 789    if (!(wd->items))
 790      return elm_index_item_append(obj, letter, func, data);
 791
 792    it = _item_new(obj, letter, func, data);
 793    if (!it) return NULL;
 794
 795    lnear = eina_list_search_sorted_near_list(wd->items, cmp_func, it, &cmp);
 796    if (cmp < 0)
 797      wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 798    else if (cmp > 0)
 799      wd->items = eina_list_prepend_relative_list(wd->items, it, lnear);
 800    else
 801      {
 802         /* If cmp_data_func is not provided, append a duplicated item */
 803         if (!cmp_data_func)
 804           wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 805         else
 806           {
 807              Elm_Index_Item *p_it = eina_list_data_get(lnear);
 808              if (cmp_data_func(p_it->base.data, it->base.data) >= 0)
 809                p_it->base.data = it->base.data;
 810              _item_free(it);
 811              elm_widget_item_free(it);
 812           }
 813      }
 814    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 815    return (Elm_Object_Item *)it;
 816 }
 817
 818 EAPI void
 819 elm_index_item_del(Evas_Object *obj __UNUSED__, Elm_Object_Item *it)
 820 {
 821    elm_object_item_del(it);
 822 }
 823
 824 EAPI Elm_Object_Item *
 825 elm_index_item_find(Evas_Object *obj, const void *data)
 826 {
 827    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 828    Widget_Data *wd = elm_widget_data_get(obj);
 829    if (!wd) return NULL;
 830    return (Elm_Object_Item *) _item_find(obj, data);
 831 }
 832
 833 EAPI void
 834 elm_index_item_clear(Evas_Object *obj)
 835 {
 836    ELM_CHECK_WIDTYPE(obj, widtype);
 837    Widget_Data *wd = elm_widget_data_get(obj);
 838    Elm_Index_Item *it;
 839    Eina_List *l, *clear = NULL;
 840    if (!wd) return;
 841    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 842    EINA_LIST_FOREACH(wd->items, l, it)
 843      {
 844         if (it->level != wd->level) continue;
 845         clear = eina_list_append(clear, it);
 846      }
 847    EINA_LIST_FREE(clear, it)
 848      {
 849         _item_free(it);
 850         elm_widget_item_free(it);
 851      }
 852 }
 853
 854 EINA_DEPRECATED EAPI void
 855 elm_index_item_go(Evas_Object *obj, int level __UNUSED__)
 856 {
 857    elm_index_level_go(obj, level);
 858 }
 859
 860 EAPI void
 861 elm_index_level_go(Evas_Object *obj, int level __UNUSED__)
 862 {
 863    ELM_CHECK_WIDTYPE(obj, widtype);
 864    Widget_Data *wd = elm_widget_data_get(obj);
 865    if (!wd) return;
 866    _index_box_auto_fill(obj, wd->bx[0], 0);
 867    if (wd->level == 1) _index_box_auto_fill(obj, wd->bx[1], 1);
 868 }
 869
 870 EAPI void *
 871 elm_index_item_data_get(const Elm_Object_Item *it)
 872 {
 873    return elm_object_item_data_get(it);
 874 }
 875
 876 EAPI void
 877 elm_index_item_data_set(Elm_Object_Item *it, const void *data)
 878 {
 879    elm_object_item_data_set(it, (void *) data);
 880 }
 881
 882 EAPI void
 883 elm_index_indicator_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 884 {
 885    ELM_CHECK_WIDTYPE(obj, widtype);
 886    Widget_Data *wd = elm_widget_data_get(obj);
 887    if (!wd) return;
 888
 889    disabled = !!disabled;
 890    if (wd->indicator_disabled == disabled) return;
 891    wd->indicator_disabled = disabled;
 892    if (!wd->items) return;
 893    if (disabled)
 894      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 895    else
 896      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 897 }
 898
 899 EAPI Eina_Bool
 900 elm_index_indicator_disabled_get(const Evas_Object *obj)
 901 {
 902    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 903    Widget_Data *wd = elm_widget_data_get(obj);
 904    if (!wd) return EINA_FALSE;
 905
 906    return wd->indicator_disabled;
 907 }
 908
 909 EAPI void
 910 elm_index_item_del_cb_set(Elm_Object_Item *it, Evas_Smart_Cb func)
 911 {
 912    elm_object_item_del_cb_set(it, func);
 913 }
 914
 915 EAPI const char *
 916 elm_index_item_letter_get(const Elm_Object_Item *it)
 917 {
 918    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 919    return ((Elm_Index_Item *)it)->letter;
 920 }
 921