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         o = edje_object_add(evas_object_evas_get(obj));
 270         VIEW(it) = o;
 271         edje_object_mirrored_set(VIEW(it), rtl);
 272
 273         if (wd->horizontal)
 274           {
 275              if (i & 0x1)
 276                _elm_theme_object_set(obj, o, "index", "item_odd/horizontal",
 277                                      elm_widget_style_get(obj));
 278              else
 279                _elm_theme_object_set(obj, o, "index", "item/horizontal",
 280                                      elm_widget_style_get(obj));
 281           }
 282         else
 283           {
 284              if (i & 0x1)
 285                _elm_theme_object_set(obj, o, "index", "item_odd/vertical",
 286                                      elm_widget_style_get(obj));
 287              else
 288                _elm_theme_object_set(obj, o, "index", "item/vertical",
 289                                      elm_widget_style_get(obj));
 290           }
 291
 292         edje_object_part_text_set(o, "elm.text", it->letter);
 293         edje_object_size_min_restricted_calc(o, &mw, &mh, 0, 0);
 294         evas_object_size_hint_min_set(o, mw, mh);
 295         evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 296         evas_object_size_hint_align_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
 297         elm_widget_sub_object_add(obj, o);
 298         evas_object_box_append(box, o);
 299         stacking = edje_object_data_get(o, "stacking");
 300         if (stacking)
 301           {
 302              if (!strcmp(stacking, "below")) evas_object_lower(o);
 303              else if (!strcmp(stacking, "above")) evas_object_raise(o);
 304           }
 305         evas_object_show(o);
 306         i++;
 307         evas_object_smart_calculate(box); // force a calc so we know the size
 308         evas_object_size_hint_min_get(box, &mw, &mh);
 309         if (mh > h)
 310           {
 311              _index_box_clear(obj, box, level);
 312              if (i > 0)
 313                {
 314                   // FIXME: only i objects fit! try again. overflows right now
 315                }
 316           }
 317      }
 318    evas_object_smart_calculate(box);
 319    wd->level_active[level] = 1;
 320 }
 321
 322 static void
 323 _index_box_clear(Evas_Object *obj, Evas_Object *box __UNUSED__, int level)
 324 {
 325    Widget_Data *wd = elm_widget_data_get(obj);
 326    Eina_List *l;
 327    Elm_Index_Item *it;
 328    if (!wd) return;
 329    if (!wd->level_active[level]) return;
 330    EINA_LIST_FOREACH(wd->items, l, it)
 331      {
 332         if (!VIEW(it)) continue;
 333         if (it->level != level) continue;
 334         evas_object_del(VIEW(it));
 335         VIEW(it) = NULL;
 336      }
 337    wd->level_active[level] = 0;
 338 }
 339
 340 static Eina_Bool
 341 _delay_change(void *data)
 342 {
 343    Widget_Data *wd = elm_widget_data_get(data);
 344    Elm_Object_Item *item;
 345    if (!wd) return ECORE_CALLBACK_CANCEL;
 346    wd->delay = NULL;
 347    item = elm_index_selected_item_get(data, wd->level);
 348    if (item) evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, item);
 349    return ECORE_CALLBACK_CANCEL;
 350 }
 351
 352 static void
 353 _sel_eval(Evas_Object *obj, Evas_Coord evx, Evas_Coord evy)
 354 {
 355    Widget_Data *wd = elm_widget_data_get(obj);
 356    Elm_Index_Item *it, *it_closest, *it_last;
 357    Eina_List *l;
 358    Evas_Coord x, y, w, h, bx, by, bw, bh, xx, yy;
 359    double cdv = 0.5;
 360    Evas_Coord dist;
 361    char *label = NULL, *last = NULL;
 362    int i;
 363    if (!wd) return;
 364    for (i = 0; i <= wd->level; i++)
 365      {
 366         it_last = NULL;
 367         it_closest  = NULL;
 368         dist = 0x7fffffff;
 369         evas_object_geometry_get(wd->bx[i], &bx, &by, &bw, &bh);
 370         EINA_LIST_FOREACH(wd->items, l, it)
 371           {
 372              if (it->level != i) continue;
 373              if (it->level != wd->level)
 374                {
 375                   if (it->selected)
 376                     {
 377                        it_closest = it;
 378                        break;
 379                     }
 380                   continue;
 381                }
 382              if (it->selected)
 383                {
 384                   it_last = it;
 385                   it->selected = 0;
 386                }
 387              evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 388              xx = x + (w / 2);
 389              yy = y + (h / 2);
 390              x = evx - xx;
 391              y = evy - yy;
 392              x = (x * x) + (y * y);
 393              if ((x < dist) || (!it_closest))
 394                {
 395                   if (wd->horizontal)
 396                     cdv = (double)(xx - bx) / (double)bw;
 397                   else
 398                     cdv = (double)(yy - by) / (double)bh;
 399                   it_closest = it;
 400                   dist = x;
 401                }
 402           }
 403         if ((i == 0) && (wd->level == 0))
 404           edje_object_part_drag_value_set(wd->base, "elm.dragable.index.1",
 405                                           cdv, cdv);
 406         if (it_closest) it_closest->selected = 1;
 407         if (it_closest != it_last)
 408           {
 409              if (it_last)
 410                {
 411                   const char *stacking, *selectraise;
 412
 413                   it = it_last;
 414                   edje_object_signal_emit(VIEW(it), "elm,state,inactive", "elm");
 415                   stacking = edje_object_data_get(VIEW(it), "stacking");
 416                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 417                   if ((selectraise) && (!strcmp(selectraise, "on")))
 418                     {
 419                        if ((stacking) && (!strcmp(stacking, "below")))
 420                          evas_object_lower(VIEW(it));
 421                     }
 422                }
 423              if (it_closest)
 424                {
 425                   const char *selectraise;
 426
 427                   it = it_closest;
 428                   edje_object_signal_emit(VIEW(it), "elm,state,active", "elm");
 429                   selectraise = edje_object_data_get(VIEW(it), "selectraise");
 430                   if ((selectraise) && (!strcmp(selectraise, "on")))
 431                     evas_object_raise(VIEW(it));
 432                   evas_object_smart_callback_call((void *)obj, SIG_CHANGED, (void *)it);
 433                   if (wd->delay) ecore_timer_del(wd->delay);
 434                   wd->delay = ecore_timer_add(0.2, _delay_change, obj);
 435                }
 436           }
 437         if (it_closest)
 438           {
 439              it = it_closest;
 440              if (!last && it->letter)
 441                last = strdup(it->letter);
 442              else
 443                {
 444                   if (!label && last) label = strdup(last);
 445                   else
 446                     {
 447                        if (label && last)
 448                          {
 449                             label = realloc(label, strlen(label) +
 450                                             strlen(last) + 1);
 451                             if (!label) return;
 452                             strcat(label, last);
 453                          }
 454                     }
 455                   free(last);
 456                   if (it->letter) last = strdup(it->letter);
 457                }
 458           }
 459      }
 460    if (!label) label = strdup("");
 461    if (!last) last = strdup("");
 462    edje_object_part_text_set(wd->base, "elm.text.body", label);
 463    edje_object_part_text_set(wd->base, "elm.text", last);
 464    free(label);
 465    free(last);
 466 }
 467
 468 static void
 469 _wheel(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
 470 {
 471    Widget_Data *wd = elm_widget_data_get(data);
 472    //   Evas_Event_Mouse_Wheel *ev = event_info;
 473    //   Evas_Object *obj = o;
 474    if (!wd) return;
 475 }
 476
 477 static void
 478 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 479 {
 480    Widget_Data *wd = elm_widget_data_get(data);
 481    Evas_Event_Mouse_Down *ev = event_info;
 482    Evas_Coord x, y, w;
 483    if (!wd) return;
 484    if (ev->button != 1) return;
 485    wd->down = 1;
 486    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 487    wd->dx = ev->canvas.x - x;
 488    wd->dy = ev->canvas.y - y;
 489    if (!wd->autohide_disabled)
 490      {
 491         _index_box_clear(data, wd->bx[1], 1);
 492         _index_box_auto_fill(data, wd->bx[0], 0);
 493         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 494      }
 495    _sel_eval(data, ev->canvas.x, ev->canvas.y);
 496    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer",
 497                                    (!edje_object_mirrored_get(wd->base)) ? wd->dx : (wd->dx - w), wd->dy);
 498    if (wd->items && !wd->indicator_disabled)
 499      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 500 }
 501
 502 static void
 503 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 504 {
 505    Widget_Data *wd = elm_widget_data_get(data);
 506    Evas_Event_Mouse_Up *ev = event_info;
 507    Elm_Object_Item *item;
 508    Elm_Index_Item *id_item;
 509    if (!wd) return;
 510    if (ev->button != 1) return;
 511    wd->down = 0;
 512    item = elm_index_selected_item_get(data, wd->level);
 513    if (item)
 514      {
 515         evas_object_smart_callback_call(data, SIG_SELECTED, item);
 516         id_item = (Elm_Index_Item *)item;
 517         if (id_item->func)
 518           id_item->func((void *)id_item->base.data, WIDGET(id_item), id_item);
 519      }
 520    if (!wd->autohide_disabled)
 521      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 522    edje_object_signal_emit(wd->base, "elm,state,level,0", "elm");
 523    if (wd->items && !wd->indicator_disabled)
 524      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 525 }
 526
 527 static void
 528 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
 529 {
 530    Widget_Data *wd = elm_widget_data_get(data);
 531    Evas_Event_Mouse_Move *ev = event_info;
 532    Evas_Coord minw = 0, minh = 0, x, y, dx, adx, w;
 533    char buf[1024];
 534    if (!wd) return;
 535    if (!wd->down) return;
 536    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 537    evas_object_geometry_get(wd->base, &x, &y, &w, NULL);
 538    x = ev->cur.canvas.x - x;
 539    y = ev->cur.canvas.y - y;
 540    dx = x - wd->dx;
 541    adx = dx;
 542    if (adx < 0) adx = -dx;
 543    edje_object_part_drag_value_set(wd->base, "elm.dragable.pointer"
 544                                    , (!edje_object_mirrored_get(wd->base)) ? x : (x - w), y);
 545    if (!wd->horizontal)
 546      {
 547         if (adx > minw)
 548           {
 549              if (!wd->level)
 550                {
 551                   wd->level = 1;
 552                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 553                   edje_object_signal_emit(wd->base, buf, "elm");
 554                   evas_object_smart_callback_call(data, SIG_LEVEL_UP, NULL);
 555                }
 556           }
 557         else
 558           {
 559              if (wd->level == 1)
 560                {
 561                   wd->level = 0;
 562                   snprintf(buf, sizeof(buf), "elm,state,level,%i", wd->level);
 563                   edje_object_signal_emit(wd->base, buf, "elm");
 564                   evas_object_smart_callback_call(data, SIG_LEVEL_DOWN, NULL);
 565                }
 566           }
 567      }
 568    _sel_eval(data, ev->cur.canvas.x, ev->cur.canvas.y);
 569 }
 570
 571 EAPI Evas_Object *
 572 elm_index_add(Evas_Object *parent)
 573 {
 574    Evas_Object *obj;
 575    Evas_Object *o;
 576    Evas *e;
 577    Widget_Data *wd;
 578    Evas_Coord minw, minh;
 579
 580    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 581
 582    ELM_SET_WIDTYPE(widtype, "index");
 583    elm_widget_type_set(obj, "index");
 584    elm_widget_sub_object_add(parent, obj);
 585    elm_widget_data_set(obj, wd);
 586    elm_widget_del_hook_set(obj, _del_hook);
 587    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 588    elm_widget_theme_hook_set(obj, _theme_hook);
 589    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 590    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 591    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 592    elm_widget_can_focus_set(obj, EINA_FALSE);
 593
 594    wd->indicator_disabled = EINA_FALSE;
 595    wd->horizontal = EINA_FALSE;
 596    wd->autohide_disabled = EINA_FALSE;
 597
 598    wd->base = edje_object_add(e);
 599    _elm_theme_object_set(obj, wd->base, "index", "base/vertical", "default");
 600    elm_widget_resize_object_set(obj, wd->base);
 601
 602    o = evas_object_rectangle_add(e);
 603    wd->event[0] = o;
 604    evas_object_color_set(o, 0, 0, 0, 0);
 605    minw = minh = 0;
 606    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 607    evas_object_size_hint_min_set(o, minw, minh);
 608    edje_object_part_swallow(wd->base, "elm.swallow.event.0", o);
 609    elm_widget_sub_object_add(obj, o);
 610    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL, _wheel, obj);
 611    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN, _mouse_down, obj);
 612    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_UP, _mouse_up, obj);
 613    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move, obj);
 614    evas_object_show(o);
 615    if (edje_object_part_exists(wd->base, "elm.swallow.event.1"))
 616      {
 617         o = evas_object_rectangle_add(e);
 618         wd->event[1] = o;
 619         evas_object_color_set(o, 0, 0, 0, 0);
 620         evas_object_size_hint_min_set(o, minw, minh);
 621         edje_object_part_swallow(wd->base, "elm.swallow.event.1", o);
 622         elm_widget_sub_object_add(obj, o);
 623      }
 624
 625    wd->bx[0] = evas_object_box_add(e);
 626    evas_object_box_layout_set(wd->bx[0], _layout, wd, NULL);
 627    elm_widget_sub_object_add(obj, wd->bx[0]);
 628    edje_object_part_swallow(wd->base, "elm.swallow.index.0", wd->bx[0]);
 629    evas_object_show(wd->bx[0]);
 630
 631    if (edje_object_part_exists(wd->base, "elm.swallow.index.1"))
 632      {
 633         wd->bx[1] = evas_object_box_add(e);
 634         evas_object_box_layout_set(wd->bx[1], _layout, wd, NULL);
 635         elm_widget_sub_object_add(obj, wd->bx[1]);
 636         edje_object_part_swallow(wd->base, "elm.swallow.index.1", wd->bx[1]);
 637         evas_object_show(wd->bx[1]);
 638      }
 639
 640    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 641
 642    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 643    _sizing_eval(obj);
 644    return obj;
 645 }
 646
 647 EAPI void
 648 elm_index_autohide_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 649 {
 650    ELM_CHECK_WIDTYPE(obj, widtype);
 651    Widget_Data *wd = elm_widget_data_get(obj);
 652    if (!wd) return;
 653    disabled = !!disabled;
 654    if (wd->autohide_disabled == disabled) return;
 655    wd->autohide_disabled = disabled;
 656    wd->level = 0;
 657    if (wd->autohide_disabled)
 658      {
 659         _index_box_clear(obj, wd->bx[1], 1);
 660         _index_box_auto_fill(obj, wd->bx[0], 0);
 661         edje_object_signal_emit(wd->base, "elm,state,active", "elm");
 662      }
 663    else
 664      edje_object_signal_emit(wd->base, "elm,state,inactive", "elm");
 665
 666    //FIXME: Should be update indicator based on the indicator visiblility
 667 }
 668
 669 EAPI Eina_Bool
 670 elm_index_autohide_disabled_get(const Evas_Object *obj)
 671 {
 672    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 673    Widget_Data *wd = elm_widget_data_get(obj);
 674    if (!wd) return EINA_FALSE;
 675    return wd->autohide_disabled;
 676 }
 677
 678 EAPI void
 679 elm_index_item_level_set(Evas_Object *obj, int level)
 680 {
 681    ELM_CHECK_WIDTYPE(obj, widtype);
 682    Widget_Data *wd = elm_widget_data_get(obj);
 683    if (!wd) return;
 684    if (wd->level == level) return;
 685    wd->level = level;
 686 }
 687
 688 EAPI int
 689 elm_index_item_level_get(const Evas_Object *obj)
 690 {
 691    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 692    Widget_Data *wd = elm_widget_data_get(obj);
 693    if (!wd) return 0;
 694    return wd->level;
 695 }
 696
 697 EAPI void
 698 elm_index_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
 699 {
 700    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 701    Evas_Coord x, y, w, h;
 702    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 703    if (!wd) return;
 704
 705    //FIXME: Should be update indicator based on the autohidden status & indicator visiblility
 706
 707    if (selected)
 708      {
 709         evas_object_geometry_get(VIEW(it), &x, &y, &w, &h);
 710         _sel_eval(WIDGET(it), x + (w/2), y + (h/2));
 711      }
 712    else
 713      _sel_eval(WIDGET(it), -99999, -9999);
 714
 715 }
 716
 717 EAPI Elm_Object_Item *
 718 elm_index_selected_item_get(const Evas_Object *obj, int level)
 719 {
 720    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 721    Widget_Data *wd = elm_widget_data_get(obj);
 722    Eina_List *l;
 723    Elm_Index_Item *it;
 724    if (!wd) return NULL;
 725    EINA_LIST_FOREACH(wd->items, l, it)
 726      {
 727         if ((it->selected) && (it->level == level))
 728           return (Elm_Object_Item *)it;
 729      }
 730    return NULL;
 731 }
 732
 733 EAPI Elm_Object_Item *
 734 elm_index_item_append(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 735 {
 736    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 737    Widget_Data *wd = elm_widget_data_get(obj);
 738    Elm_Index_Item *it;
 739    if (!wd) return NULL;
 740    it = _item_new(obj, letter, func, data);
 741    if (!it) return NULL;
 742    wd->items = eina_list_append(wd->items, it);
 743    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 744    return (Elm_Object_Item *)it;
 745 }
 746
 747 EAPI Elm_Object_Item *
 748 elm_index_item_prepend(Evas_Object *obj, const char *letter, Evas_Smart_Cb func, const void *data)
 749 {
 750    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 751    Widget_Data *wd = elm_widget_data_get(obj);
 752    Elm_Index_Item *it;
 753
 754    if (!wd) return NULL;
 755    it = _item_new(obj, letter, func, data);
 756    if (!it) return NULL;
 757    wd->items = eina_list_prepend(wd->items, it);
 758    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 759    return (Elm_Object_Item *)it;
 760 }
 761
 762 EINA_DEPRECATED EAPI Elm_Object_Item *
 763 elm_index_item_prepend_relative(Evas_Object *obj, const char *letter, const void *item, const Elm_Object_Item *relative)
 764 {
 765    return elm_index_item_insert_before(obj, (Elm_Object_Item *) relative, letter, NULL, item);
 766 }
 767
 768 EAPI Elm_Object_Item *
 769 elm_index_item_insert_after(Evas_Object *obj, Elm_Object_Item *after, const char *letter, Evas_Smart_Cb func, const void *data)
 770 {
 771    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 772    Widget_Data *wd = elm_widget_data_get(obj);
 773    Elm_Index_Item *it;
 774    if (!wd) return NULL;
 775    if (!after) return elm_index_item_append(obj, letter, func, data);
 776    it = _item_new(obj, letter, func, data);
 777    if (!it) return NULL;
 778    wd->items = eina_list_append_relative(wd->items, it, after);
 779    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 780    return (Elm_Object_Item *)it;
 781 }
 782
 783 EAPI Elm_Object_Item *
 784 elm_index_item_insert_before(Evas_Object *obj, Elm_Object_Item *before, const char *letter, Evas_Smart_Cb func, const void *data)
 785 {
 786    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 787    Widget_Data *wd = elm_widget_data_get(obj);
 788    Elm_Index_Item *it;
 789    if (!wd) return NULL;
 790    if (!before) return elm_index_item_prepend(obj, letter, func, data);
 791    it = _item_new(obj, letter, func, data);
 792    if (!it) return NULL;
 793    wd->items = eina_list_prepend_relative(wd->items, it, before);
 794    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 795    return (Elm_Object_Item *)it;
 796 }
 797
 798 EAPI Elm_Object_Item *
 799 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)
 800 {
 801    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 802    Widget_Data *wd = elm_widget_data_get(obj);
 803    Eina_List *lnear;
 804    Elm_Index_Item *it;
 805    int cmp;
 806
 807    if (!wd) return NULL;
 808    if (!(wd->items))
 809      return elm_index_item_append(obj, letter, func, data);
 810
 811    it = _item_new(obj, letter, func, data);
 812    if (!it) return NULL;
 813
 814    lnear = eina_list_search_sorted_near_list(wd->items, cmp_func, it, &cmp);
 815    if (cmp < 0)
 816      wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 817    else if (cmp > 0)
 818      wd->items = eina_list_prepend_relative_list(wd->items, it, lnear);
 819    else
 820      {
 821         /* If cmp_data_func is not provided, append a duplicated item */
 822         if (!cmp_data_func)
 823           wd->items =  eina_list_append_relative_list(wd->items, it, lnear);
 824         else
 825           {
 826              Elm_Index_Item *p_it = eina_list_data_get(lnear);
 827              if (cmp_data_func(p_it->base.data, it->base.data) >= 0)
 828                p_it->base.data = it->base.data;
 829              _item_free(it);
 830              elm_widget_item_free(it);
 831           }
 832      }
 833    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 834    return (Elm_Object_Item *)it;
 835 }
 836
 837 EAPI Elm_Object_Item *
 838 elm_index_item_find(Evas_Object *obj, const void *data)
 839 {
 840    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 841    Widget_Data *wd = elm_widget_data_get(obj);
 842    if (!wd) return NULL;
 843    return (Elm_Object_Item *) _item_find(obj, data);
 844 }
 845
 846 EAPI void
 847 elm_index_item_clear(Evas_Object *obj)
 848 {
 849    ELM_CHECK_WIDTYPE(obj, widtype);
 850    Widget_Data *wd = elm_widget_data_get(obj);
 851    Elm_Index_Item *it;
 852    Eina_List *l, *clear = NULL;
 853    if (!wd) return;
 854    _index_box_clear(obj, wd->bx[wd->level], wd->level);
 855    EINA_LIST_FOREACH(wd->items, l, it)
 856      {
 857         if (it->level != wd->level) continue;
 858         clear = eina_list_append(clear, it);
 859      }
 860    EINA_LIST_FREE(clear, it)
 861      {
 862         _item_free(it);
 863         elm_widget_item_free(it);
 864      }
 865 }
 866
 867 EAPI void
 868 elm_index_level_go(Evas_Object *obj, int level __UNUSED__)
 869 {
 870    ELM_CHECK_WIDTYPE(obj, widtype);
 871    Widget_Data *wd = elm_widget_data_get(obj);
 872    if (!wd) return;
 873    _index_box_auto_fill(obj, wd->bx[0], 0);
 874    if (wd->level == 1) _index_box_auto_fill(obj, wd->bx[1], 1);
 875 }
 876
 877 EAPI void
 878 elm_index_indicator_disabled_set(Evas_Object *obj, Eina_Bool disabled)
 879 {
 880    ELM_CHECK_WIDTYPE(obj, widtype);
 881    Widget_Data *wd = elm_widget_data_get(obj);
 882    if (!wd) return;
 883
 884    disabled = !!disabled;
 885    if (wd->indicator_disabled == disabled) return;
 886    wd->indicator_disabled = disabled;
 887    if (!wd->items) return;
 888    if (disabled)
 889      edje_object_signal_emit(wd->base, "elm,indicator,state,inactive", "elm");
 890    else
 891      edje_object_signal_emit(wd->base, "elm,indicator,state,active", "elm");
 892 }
 893
 894 EAPI Eina_Bool
 895 elm_index_indicator_disabled_get(const Evas_Object *obj)
 896 {
 897    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 898    Widget_Data *wd = elm_widget_data_get(obj);
 899    if (!wd) return EINA_FALSE;
 900
 901    return wd->indicator_disabled;
 902 }
 903
 904 EAPI const char *
 905 elm_index_item_letter_get(const Elm_Object_Item *it)
 906 {
 907    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 908    return ((Elm_Index_Item *)it)->letter;
 909 }
 910
 911 EAPI void
 912 elm_index_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 913 {
 914    ELM_CHECK_WIDTYPE(obj, widtype);
 915    Widget_Data *wd = elm_widget_data_get(obj);
 916    if (!wd) return;
 917
 918    horizontal = !!horizontal;
 919    if (horizontal == wd->horizontal) return;
 920    wd->horizontal = horizontal;
 921    _theme_hook(obj);
 922 }
 923
 924 EAPI Eina_Bool
 925 elm_index_horizontal_get(const Evas_Object *obj)
 926 {
 927    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 928    Widget_Data *wd = elm_widget_data_get(obj);
 929    if (!wd) return EINA_FALSE;
 930    return wd->horizontal;
 931 }
 932
 933