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