src/lib/elm_flipselector.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /* TODO: ideally, the default theme would use map{} blocks on the TEXT
   5    parts to implement their fading in/out propertly (as in the clock
   6    widget) */
   7 /* TODO: if one ever wants to extend it to receiving generic widgets
   8    as items, be my guest. in this case, remember to implement the
   9    items tooltip infra. */
  10 /* TODO: implement disabled mode -- disable_hook() and stuff. */
  11 /* TODO: fix default theme image borders for looong strings as item
  12    labels. */
  13 /* TODO: set text elipsis on labels if one enforces mininum size on
  14  * the overall widget less the required for displaying it. */
  15 /* TODO: find a way to, in the default theme, to detect we are
  16  * bootstrapping (receiving the 1st message) and populate the downmost
  17  * TEXT parts with the same text as the upmost, where appropriate. */
  18
  19 #define FLIP_FIRST_INTERVAL (0.85)
  20 #define FLIP_MIN_INTERVAL (0.1)
  21 #define MSG_FLIP_DOWN (1)
  22 #define MSG_FLIP_UP (2)
  23 #define MAX_LEN_DEFAULT (50)
  24
  25 #define DATA_GET eina_list_data_get
  26
  27 struct _Elm_Flipselector_Item
  28 {
  29    ELM_WIDGET_ITEM;
  30    const char *label;
  31    Evas_Smart_Cb func;
  32    void *data;
  33    int deleted : 1;
  34 };
  35
  36 typedef struct _Widget_Data Widget_Data;
  37
  38 struct _Widget_Data
  39 {
  40    Evas_Object *self;
  41    Evas_Object *base;
  42    Eina_List *items;
  43    Eina_List *current;
  44    Eina_List *sentinel; /* item containing the largest label string */
  45    int walking;
  46    unsigned int max_len;
  47    Ecore_Timer *spin;
  48    double interval, first_interval;
  49 };
  50
  51 static const char *widtype = NULL;
  52 static void _del_hook(Evas_Object *obj);
  53 static void _theme_hook(Evas_Object *obj);
  54 static void _sizing_eval(Evas_Object *obj);
  55 static void _update_view(Evas_Object *obj);
  56 static void _callbacks_set(Evas_Object *obj);
  57 static void _flip_up(Widget_Data *wd);
  58 static void _flip_down(Widget_Data *wd);
  59
  60 static const char SIG_SELECTED[] = "selected";
  61 static const char SIG_UNDERFLOWED[] = "underflowed";
  62 static const char SIG_OVERFLOWED[] = "overflowed";
  63 static const Evas_Smart_Cb_Description _signals[] = {
  64   {SIG_SELECTED, ""},
  65   {SIG_UNDERFLOWED, ""},
  66   {SIG_OVERFLOWED, ""},
  67   {NULL, NULL}
  68 };
  69
  70 #define ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(it, ...)             \
  71    ELM_WIDGET_ITEM_WIDTYPE_CHECK_OR_RETURN(it, __VA_ARGS__);            \
  72   if (it->deleted)                                                      \
  73     {                                                                   \
  74        ERR(""#it" has been DELETED.\n");                                \
  75        return __VA_ARGS__;                                              \
  76     }                                                                   \
  77
  78 static Elm_Flipselector_Item *
  79 _item_new(Evas_Object *obj, const char *label, Evas_Smart_Cb func, const void *data)
  80 {
  81    unsigned int len;
  82    Elm_Flipselector_Item *it;
  83    Widget_Data *wd = elm_widget_data_get(obj);
  84
  85    it = elm_widget_item_new(obj, Elm_Flipselector_Item);
  86    if (!it)
  87      return NULL;
  88
  89    len = strlen(label);
  90    if (len > wd->max_len)
  91      len = wd->max_len;
  92
  93    it->label = eina_stringshare_add_length(label, len);
  94    it->func = func;
  95    it->base.data = data;
  96
  97    /* TODO: no view here, but if one desires general contents in the
  98     * future... */
  99    return it;
 100 }
 101
 102 static inline void
 103 _item_free(Elm_Flipselector_Item *it)
 104 {
 105    eina_stringshare_del(it->label);
 106    elm_widget_item_del(it);
 107 }
 108
 109 static void
 110 _del_hook(Evas_Object *obj)
 111 {
 112    Elm_Flipselector_Item *item;
 113
 114    Widget_Data *wd = elm_widget_data_get(obj);
 115    if (!wd)
 116      return;
 117
 118    if (wd->walking)
 119      ERR("flipselector deleted while walking.\n");
 120
 121    EINA_LIST_FREE(wd->items, item)
 122       _item_free(item);
 123
 124    if (wd->spin) ecore_timer_del(wd->spin);
 125    free(wd);
 126 }
 127
 128 static void
 129 _theme_hook(Evas_Object *obj)
 130 {
 131    Widget_Data *wd;
 132    const char *max_len;
 133
 134    wd = elm_widget_data_get(obj);
 135    if (!wd)
 136      return;
 137
 138    _elm_theme_object_set(obj, wd->base, "flipselector", "base",
 139                          elm_widget_style_get(obj));
 140    edje_object_scale_set(wd->base,
 141                          elm_widget_scale_get(obj) * _elm_config->scale);
 142
 143    max_len = edje_object_data_get(wd->base, "max_len");
 144    if (!max_len)
 145      wd->max_len = MAX_LEN_DEFAULT;
 146    else
 147      {
 148         wd->max_len = atoi(max_len);
 149         if (!wd->max_len)
 150           wd->max_len = MAX_LEN_DEFAULT;
 151      }
 152
 153    _update_view(obj);
 154    _sizing_eval(obj);
 155 }
 156
 157 static void
 158 _sentinel_eval(Widget_Data *wd)
 159 {
 160    Elm_Flipselector_Item *it;
 161    Eina_List *l;
 162
 163    if (!wd->items)
 164      {
 165         wd->sentinel = NULL;
 166         return;
 167      }
 168
 169    wd->sentinel = wd->items;
 170
 171    EINA_LIST_FOREACH(wd->items, l, it)
 172      {
 173         if (strlen(elm_flipselector_item_label_get(it)) >
 174             strlen(elm_flipselector_item_label_get(DATA_GET(wd->sentinel))))
 175           wd->sentinel = l;
 176      }
 177 }
 178
 179 /* TODO: create a flag to avoid looping here all times */
 180 static void
 181 _flipselector_process_deletions(Widget_Data *wd)
 182 {
 183    Elm_Flipselector_Item *it;
 184    Eina_List *l;
 185    Eina_Bool skip = EINA_TRUE;
 186    Eina_Bool sentinel_eval = EINA_FALSE;
 187
 188    wd->walking++; /* avoid nested deletions */
 189
 190    EINA_LIST_FOREACH(wd->items, l, it)
 191      {
 192         if (!it->deleted)
 193           continue;
 194
 195         if (wd->current == l)
 196           {
 197              if (wd->current == wd->sentinel)
 198                sentinel_eval = EINA_TRUE;
 199
 200              wd->current = eina_list_prev(wd->current);
 201           }
 202         wd->items = eina_list_remove(wd->items, it);
 203
 204         if (!wd->current)
 205           wd->current = wd->items;
 206
 207         _item_free(it);
 208         skip = EINA_FALSE;
 209
 210         if (eina_list_count(wd->items) <= 1)
 211           edje_object_signal_emit(wd->base, "elm,state,button,hidden", "elm");
 212         else
 213           edje_object_signal_emit(wd->base, "elm,state,button,visible", "elm");
 214      }
 215
 216    if (!skip)
 217      _update_view(wd->self);
 218
 219    if (sentinel_eval)
 220      _sentinel_eval(wd);
 221
 222    wd->walking--;
 223 }
 224
 225 static inline void
 226 _flipselector_walk(Widget_Data *wd)
 227 {
 228    if (wd->walking < 0)
 229      {
 230         ERR("walking was negative. fixed!\n");
 231         wd->walking = 0;
 232      }
 233    wd->walking++;
 234 }
 235
 236 static inline void
 237 _flipselector_unwalk(Widget_Data *wd)
 238 {
 239    wd->walking--;
 240    if (wd->walking < 0)
 241      {
 242         ERR("walking became negative. fixed!\n");
 243         wd->walking = 0;
 244      }
 245
 246    if (wd->walking)
 247      return;
 248
 249    _flipselector_process_deletions(wd);
 250 }
 251
 252 static Eina_Bool
 253 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
 254 {
 255    Evas_Event_Key_Down *ev;
 256    Widget_Data *wd;
 257    Eina_Bool is_up = EINA_TRUE;
 258
 259    if (type != EVAS_CALLBACK_KEY_DOWN)
 260      return EINA_FALSE;
 261
 262    wd = elm_widget_data_get(obj);
 263    if (!wd)
 264      return EINA_FALSE;
 265
 266    ev = event_info;
 267    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
 268      return EINA_FALSE;
 269
 270    if (elm_widget_disabled_get(obj))
 271      return EINA_FALSE;
 272
 273    if ((!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
 274      is_up = EINA_FALSE;
 275    else if ((strcmp(ev->keyname, "Up")) && (strcmp(ev->keyname, "KP_Up")))
 276      return EINA_FALSE;
 277
 278    if (wd->spin) ecore_timer_del(wd->spin);
 279
 280    /* TODO: if direction setting via API is not coming in, replace
 281       these calls by flip_{next,prev} */
 282    _flipselector_walk(wd);
 283    if (is_up)
 284      _flip_up(wd);
 285    else
 286      _flip_down(wd);
 287    _flipselector_unwalk(wd);
 288
 289    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 290    return EINA_TRUE;
 291 }
 292
 293 static void
 294 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 295 {
 296    Widget_Data *wd = elm_widget_data_get(obj);
 297    if (!wd)
 298      return;
 299
 300    /* FIXME: no treatment of this signal so far */
 301    if (elm_widget_focus_get(obj))
 302      {
 303         edje_object_signal_emit(wd->base, "elm,action,focus", "elm");
 304         evas_object_focus_set(wd->base, EINA_TRUE);
 305      }
 306    else
 307      {
 308         edje_object_signal_emit(wd->base, "elm,action,unfocus", "elm");
 309         evas_object_focus_set(wd->base, EINA_FALSE);
 310      }
 311 }
 312
 313 static void
 314 _sizing_eval(Evas_Object *obj)
 315 {
 316    Widget_Data *wd;
 317    const char *tmp = NULL;
 318    Evas_Coord minw = -1, minh = -1, w, h;
 319
 320    wd = elm_widget_data_get(obj);
 321    if (!wd)
 322      return;
 323
 324    elm_coords_finger_size_adjust(1, &minw, 2, &minh);
 325
 326    if (wd->sentinel)
 327      {
 328         const char *label = \
 329                             elm_flipselector_item_label_get(DATA_GET(wd->sentinel));
 330
 331         tmp = edje_object_part_text_get(wd->base, "top");
 332         edje_object_part_text_set(wd->base, "top", label);
 333      }
 334
 335    edje_object_size_min_restricted_calc(wd->base, &minw, &minh, minw, minh);
 336    elm_coords_finger_size_adjust(1, &minw, 2, &minh);
 337    evas_object_size_hint_min_get(obj, &w, &h);
 338
 339    if (wd->sentinel)
 340      edje_object_part_text_set(wd->base, "top", tmp);
 341
 342    if (w > minw) minw = w;
 343    if (h > minh) minh = h;
 344
 345    evas_object_size_hint_min_set(obj, minw, minh);
 346 }
 347
 348 static void
 349 _update_view(Evas_Object *obj)
 350 {
 351    Widget_Data *wd;
 352    const char *label;
 353    Elm_Flipselector_Item *item;
 354
 355    wd = elm_widget_data_get(obj);
 356    if (!wd)
 357      return;
 358
 359    label = NULL;
 360    item = DATA_GET(wd->current);
 361    if (item)
 362      label = item->label;
 363
 364    edje_object_part_text_set(wd->base, "top", label ? label : "");
 365    edje_object_part_text_set(wd->base, "bottom", label ? label : "");
 366
 367    edje_object_message_signal_process(wd->base);
 368 }
 369
 370 static void
 371 _changed(Widget_Data *wd)
 372 {
 373    Elm_Flipselector_Item *item;
 374
 375    item = DATA_GET(wd->current);
 376    if (!item)
 377      return;
 378
 379    if (item->func)
 380      item->func((void *)item->base.data, item->base.widget, item);
 381    if (!item->deleted)
 382      evas_object_smart_callback_call(wd->self, SIG_SELECTED, item);
 383 }
 384
 385 static void
 386 _send_msg(Widget_Data *wd, int flipside, char *label)
 387 {
 388    Edje_Message_String msg;
 389
 390    msg.str = label;
 391    edje_object_message_send(wd->base, EDJE_MESSAGE_STRING, flipside, &msg);
 392    edje_object_message_signal_process(wd->base);
 393
 394    _changed(wd);
 395 }
 396
 397 static void
 398 _flip_up(Widget_Data *wd)
 399 {
 400    Elm_Flipselector_Item *item;
 401
 402    if (!wd->current)
 403      return;
 404
 405    if (wd->current == wd->items)
 406      {
 407         wd->current = eina_list_last(wd->items);
 408         evas_object_smart_callback_call(wd->self, SIG_UNDERFLOWED, NULL);
 409      }
 410    else
 411      wd->current = eina_list_prev(wd->current);
 412
 413    item = DATA_GET(wd->current);
 414    if (!item)
 415      return;
 416
 417    _send_msg(wd, MSG_FLIP_UP, (char *)item->label);
 418 }
 419
 420 static Eina_Bool
 421 _signal_val_up(void *data)
 422 {
 423    Widget_Data *wd = elm_widget_data_get(data);
 424
 425    if (!wd)
 426      goto val_up_exit_on_error;
 427
 428    _flipselector_walk(wd);
 429
 430    if (wd->interval > FLIP_MIN_INTERVAL)
 431      wd->interval = wd->interval / 1.05;
 432
 433    ecore_timer_interval_set(wd->spin, wd->interval);
 434
 435    _flip_up(wd);
 436
 437    _flipselector_unwalk(wd);
 438
 439    return ECORE_CALLBACK_RENEW;
 440
 441 val_up_exit_on_error:
 442    return ECORE_CALLBACK_CANCEL;
 443 }
 444
 445 static void
 446 _signal_val_up_start(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 447 {
 448    Widget_Data *wd = elm_widget_data_get(data);
 449    if (!wd)
 450      return;
 451
 452    wd->interval = wd->first_interval;
 453
 454    if (wd->spin)
 455      ecore_timer_del(wd->spin);
 456    wd->spin = ecore_timer_add(wd->interval, _signal_val_up, data);
 457
 458    _signal_val_up(data);
 459 }
 460
 461 static void
 462 _flip_down(Widget_Data *wd)
 463 {
 464    Elm_Flipselector_Item *item;
 465
 466    if (!wd->current)
 467      return;
 468
 469    wd->current = eina_list_next(wd->current);
 470    if (!wd->current)
 471      {
 472         wd->current = wd->items;
 473         evas_object_smart_callback_call(wd->self, SIG_OVERFLOWED, NULL);
 474      }
 475
 476    item = DATA_GET(wd->current);
 477    if (!item)
 478      return;
 479
 480    _send_msg(wd, MSG_FLIP_DOWN, (char *)item->label);
 481 }
 482
 483 static Eina_Bool
 484 _signal_val_down(void *data)
 485 {
 486    Widget_Data *wd = elm_widget_data_get(data);
 487
 488    if (!wd)
 489      goto val_down_exit_on_error;
 490
 491    _flipselector_walk(wd);
 492
 493    if (wd->interval > FLIP_MIN_INTERVAL)
 494      wd->interval = wd->interval / 1.05;
 495    ecore_timer_interval_set(wd->spin, wd->interval);
 496
 497    _flip_down(wd);
 498
 499    _flipselector_unwalk(wd);
 500
 501    return ECORE_CALLBACK_RENEW;
 502
 503 val_down_exit_on_error:
 504    return ECORE_CALLBACK_CANCEL;
 505 }
 506
 507 static void
 508 _signal_val_down_start(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 509 {
 510    Widget_Data *wd = elm_widget_data_get(data);
 511    if (!wd)
 512      return;
 513
 514    wd->interval = wd->first_interval;
 515
 516    if (wd->spin)
 517      ecore_timer_del(wd->spin);
 518    wd->spin = ecore_timer_add(wd->interval, _signal_val_down, data);
 519
 520    _signal_val_down(data);
 521 }
 522
 523 static void
 524 _signal_val_change_stop(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 525 {
 526    Widget_Data *wd = elm_widget_data_get(data);
 527    if (!wd)
 528      return;
 529
 530    if (wd->spin)
 531      ecore_timer_del(wd->spin);
 532    wd->spin = NULL;
 533 }
 534
 535 static void
 536 _callbacks_set(Evas_Object *obj)
 537 {
 538    Widget_Data *wd = elm_widget_data_get(obj);
 539
 540    edje_object_signal_callback_add(wd->base, "elm,action,up,start",
 541                                    "", _signal_val_up_start, obj);
 542    edje_object_signal_callback_add(wd->base, "elm,action,up,stop",
 543                                    "", _signal_val_change_stop, obj);
 544    edje_object_signal_callback_add(wd->base, "elm,action,down,start",
 545                                    "", _signal_val_down_start, obj);
 546    edje_object_signal_callback_add(wd->base, "elm,action,down,stop",
 547                                    "", _signal_val_change_stop, obj);
 548 }
 549
 550 EAPI Evas_Object *
 551 elm_flipselector_add(Evas_Object *parent)
 552 {
 553    Evas_Object *obj;
 554    Evas *e;
 555    Widget_Data *wd;
 556
 557    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 558
 559    ELM_SET_WIDTYPE(widtype, "flipselector");
 560    elm_widget_type_set(obj, "flipselector");
 561    elm_widget_sub_object_add(parent, obj);
 562    elm_widget_data_set(obj, wd);
 563
 564    wd->self = obj;
 565    elm_widget_del_hook_set(obj, _del_hook);
 566    elm_widget_theme_hook_set(obj, _theme_hook);
 567    /* TODO: elm_widget_disable_hook_set(obj, _disable_hook); */
 568
 569    elm_widget_can_focus_set(obj, EINA_TRUE);
 570    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 571    elm_widget_event_hook_set(obj, _event_hook);
 572
 573    wd->base = edje_object_add(e);
 574    elm_widget_resize_object_set(obj, wd->base);
 575
 576    _callbacks_set(obj);
 577
 578    wd->first_interval = FLIP_FIRST_INTERVAL;
 579
 580    _theme_hook(obj);
 581
 582    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 583    return obj;
 584 }
 585
 586 EAPI void
 587 elm_flipselector_flip_next(Evas_Object *obj)
 588 {
 589    ELM_CHECK_WIDTYPE(obj, widtype);
 590
 591    Widget_Data *wd = elm_widget_data_get(obj);
 592    if (!wd)
 593      return;
 594
 595    if (wd->spin) ecore_timer_del(wd->spin);
 596
 597    _flipselector_walk(wd);
 598    _flip_down(wd);
 599    _flipselector_unwalk(wd);
 600 }
 601
 602 EAPI void
 603 elm_flipselector_flip_prev(Evas_Object *obj)
 604 {
 605    ELM_CHECK_WIDTYPE(obj, widtype);
 606
 607    Widget_Data *wd = elm_widget_data_get(obj);
 608    if (!wd)
 609      return;
 610
 611    if (wd->spin) ecore_timer_del(wd->spin);
 612
 613    _flipselector_walk(wd);
 614    _flip_up(wd);
 615    _flipselector_unwalk(wd);
 616 }
 617
 618 EAPI Elm_Flipselector_Item *
 619 elm_flipselector_item_append(Evas_Object *obj, const char *label, void (*func)(void *data, Evas_Object *obj, void *event_info), void *data)
 620 {
 621    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 622
 623    Elm_Flipselector_Item *item;
 624    Widget_Data *wd;
 625
 626    wd = elm_widget_data_get(obj);
 627    if (!wd)
 628      return NULL;
 629
 630    item = _item_new(obj, label, func, data);
 631    if (!item)
 632      return NULL;
 633
 634    wd->items = eina_list_append(wd->items, item);
 635    if (!wd->current) {
 636         wd->current = wd->items;
 637         _update_view(obj);
 638    }
 639
 640    if (!wd->sentinel ||
 641        (strlen(elm_flipselector_item_label_get(item)) >
 642         strlen(elm_flipselector_item_label_get(DATA_GET(wd->sentinel)))))
 643      {
 644         wd->sentinel = eina_list_last(wd->items);
 645         _sizing_eval(obj);
 646      }
 647
 648    if (eina_list_count(wd->items) >= 2)
 649      edje_object_signal_emit(wd->base, "elm,state,button,visible", "elm");
 650
 651    return item;
 652 }
 653
 654 EAPI Elm_Flipselector_Item *
 655 elm_flipselector_item_prepend(Evas_Object *obj, const char *label, void (*func)(void *data, Evas_Object *obj, void *event_info), void *data)
 656 {
 657    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 658
 659    Elm_Flipselector_Item *item;
 660    Widget_Data *wd;
 661
 662    wd = elm_widget_data_get(obj);
 663    if (!wd)
 664      return NULL;
 665
 666    item = _item_new(obj, label, func, data);
 667    if (!item)
 668      return NULL;
 669
 670    wd->items = eina_list_prepend(wd->items, item);
 671    if (!wd->current) {
 672         wd->current = wd->items;
 673         _update_view(obj);
 674    }
 675
 676    if (!wd->sentinel ||
 677        (strlen(elm_flipselector_item_label_get(item)) >
 678         strlen(elm_flipselector_item_label_get(DATA_GET(wd->sentinel)))))
 679      {
 680         wd->sentinel = wd->items;
 681         _sizing_eval(obj);
 682      }
 683
 684    if (eina_list_count(wd->items) >= 2)
 685      edje_object_signal_emit(wd->base, "elm,state,button,visible", "elm");
 686
 687    return item;
 688 }
 689
 690 /* TODO: account for deleted items?  */
 691 EAPI const Eina_List *
 692 elm_flipselector_items_get(const Evas_Object *obj)
 693 {
 694    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 695
 696    Widget_Data *wd = elm_widget_data_get(obj);
 697    if (!wd)
 698      return NULL;
 699
 700    return wd->items;
 701 }
 702
 703 EAPI Elm_Flipselector_Item *
 704 elm_flipselector_first_item_get(const Evas_Object *obj)
 705 {
 706    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 707
 708    Elm_Flipselector_Item *it;
 709    Widget_Data *wd;
 710    Eina_List *l;
 711
 712    wd = elm_widget_data_get(obj);
 713    if (!wd || !wd->items)
 714      return NULL;
 715
 716    EINA_LIST_FOREACH(wd->items, l, it)
 717      {
 718         if (it->deleted)
 719           continue;
 720
 721         return it;
 722      }
 723
 724    return NULL;
 725 }
 726
 727 EAPI Elm_Flipselector_Item *
 728 elm_flipselector_last_item_get(const Evas_Object *obj)
 729 {
 730    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 731
 732    Elm_Flipselector_Item *it;
 733    Widget_Data *wd;
 734    Eina_List *l;
 735
 736    wd = elm_widget_data_get(obj);
 737    if (!wd || !wd->items)
 738      return NULL;
 739
 740    EINA_LIST_REVERSE_FOREACH(wd->items, l, it)
 741      {
 742         if (it->deleted)
 743           continue;
 744
 745         return it;
 746      }
 747
 748    return NULL;
 749 }
 750
 751 EAPI Elm_Flipselector_Item *
 752 elm_flipselector_selected_item_get(const Evas_Object *obj)
 753 {
 754    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 755
 756    Widget_Data *wd = elm_widget_data_get(obj);
 757    if (!wd || !wd->current)
 758      return NULL;
 759
 760    return DATA_GET(wd->current);
 761 }
 762
 763 EAPI void
 764 elm_flipselector_item_selected_set(Elm_Flipselector_Item *item, Eina_Bool selected)
 765 {
 766    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item);
 767
 768    Elm_Flipselector_Item *_item, *cur;
 769    int flipside = MSG_FLIP_UP;
 770    Widget_Data *wd;
 771    Eina_List *l;
 772
 773    wd = elm_widget_data_get(item->base.widget);
 774    if (!wd)
 775      return;
 776
 777    cur = DATA_GET(wd->current);
 778    if ((selected) && (cur == item))
 779      return;
 780
 781    _flipselector_walk(wd);
 782
 783    if ((!selected) && (cur == item))
 784      {
 785         EINA_LIST_FOREACH(wd->items, l, _item)
 786           {
 787              if (!_item->deleted)
 788                {
 789                   wd->current = l;
 790                   _send_msg(wd, MSG_FLIP_UP, (char *)_item->label);
 791                   break;
 792                }
 793           }
 794         _flipselector_unwalk(wd);
 795         return;
 796      }
 797
 798    EINA_LIST_FOREACH(wd->items, l, _item)
 799      {
 800         if (_item == cur)
 801           flipside = MSG_FLIP_DOWN;
 802
 803         if (_item == item)
 804           {
 805              wd->current = l;
 806              _send_msg(wd, flipside, (char *)item->label);
 807              break;
 808           }
 809      }
 810
 811    _flipselector_unwalk(wd);
 812 }
 813
 814 EAPI Eina_Bool
 815 elm_flipselector_item_selected_get(const Elm_Flipselector_Item *item)
 816 {
 817    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item, EINA_FALSE);
 818    Widget_Data *wd;
 819
 820    wd = elm_widget_data_get(item->base.widget);
 821    if (!wd) return EINA_FALSE;
 822    return (eina_list_data_get(wd->current) == item);
 823 }
 824
 825 EAPI void
 826 elm_flipselector_item_del(Elm_Flipselector_Item *item)
 827 {
 828    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item);
 829
 830    Widget_Data *wd;
 831
 832    wd = elm_widget_data_get(item->base.widget);
 833    if (!wd)
 834      return;
 835
 836    if (wd->walking > 0)
 837      {
 838         item->deleted = EINA_TRUE;
 839         return;
 840      }
 841
 842    _flipselector_walk(wd);
 843
 844    wd->items = eina_list_remove(wd->items, item);
 845    _item_free(item);
 846    _sentinel_eval(wd);
 847
 848    _flipselector_unwalk(wd);
 849 }
 850
 851 EAPI const char *
 852 elm_flipselector_item_label_get(const Elm_Flipselector_Item *item)
 853 {
 854    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item, NULL);
 855
 856    Elm_Flipselector_Item *_item;
 857    Widget_Data *wd;
 858    Eina_List *l;
 859
 860    wd = elm_widget_data_get(item->base.widget);
 861    if ((!wd) || (!wd->items))
 862      return NULL;
 863
 864    EINA_LIST_FOREACH(wd->items, l, _item)
 865       if (_item == item)
 866         return item->label;
 867
 868    return NULL;
 869 }
 870
 871 EAPI void
 872 elm_flipselector_item_label_set(Elm_Flipselector_Item *item, const char *label)
 873 {
 874    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item);
 875
 876    Widget_Data *wd;
 877    Eina_List *l;
 878
 879    if ((!item) || (!label))
 880      return;
 881
 882    wd = elm_widget_data_get(item->base.widget);
 883    if ((!wd) || (!wd->items))
 884      return;
 885
 886    l = eina_list_data_find_list(wd->items, item);
 887    if (!l)
 888      return;
 889
 890    eina_stringshare_del(item->label);
 891    item->label = eina_stringshare_add_length(label, wd->max_len);
 892
 893    if (strlen(label) >
 894        strlen(elm_flipselector_item_label_get(DATA_GET(wd->sentinel))))
 895      wd->sentinel = l;
 896
 897    if (wd->current == l)
 898      {
 899         _update_view(item->base.widget);
 900         _sizing_eval(wd->self);
 901      }
 902
 903    return;
 904 }
 905
 906 EAPI Elm_Flipselector_Item *
 907 elm_flipselector_item_prev_get(Elm_Flipselector_Item *item)
 908 {
 909    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item, NULL);
 910
 911    Elm_Flipselector_Item *_item;
 912    Widget_Data *wd;
 913    Eina_List *l;
 914
 915    wd = elm_widget_data_get(item->base.widget);
 916    if ((!wd) || (!wd->items))
 917      return NULL;
 918
 919    EINA_LIST_FOREACH(wd->items, l, _item)
 920       if (_item == item)
 921         {
 922            l = eina_list_prev(l);
 923            if (!l)
 924              return NULL;
 925            return DATA_GET(l);
 926         }
 927
 928    return NULL;
 929 }
 930
 931 EAPI Elm_Flipselector_Item *
 932 elm_flipselector_item_next_get(Elm_Flipselector_Item *item)
 933 {
 934    ELM_FLIPSELECTOR_ITEM_CHECK_DELETED_RETURN(item, NULL);
 935
 936    Elm_Flipselector_Item *_item;
 937    Widget_Data *wd;
 938    Eina_List *l;
 939
 940    wd = elm_widget_data_get(item->base.widget);
 941    if ((!wd) || (!wd->items))
 942      return NULL;
 943
 944    EINA_LIST_FOREACH(wd->items, l, _item)
 945       if (_item == item)
 946         {
 947            l = eina_list_next(l);
 948            if (!l)
 949              return NULL;
 950            return DATA_GET(l);
 951         }
 952
 953    return NULL;
 954 }
 955
 956 EAPI void
 957 elm_flipselector_interval_set(Evas_Object *obj, double interval)
 958 {
 959    ELM_CHECK_WIDTYPE(obj, widtype);
 960
 961    Widget_Data *wd = elm_widget_data_get(obj);
 962    if (!wd)
 963      return;
 964
 965    wd->first_interval = interval;
 966 }
 967
 968 EAPI double
 969 elm_flipselector_interval_get(const Evas_Object *obj)
 970 {
 971    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 972
 973    Widget_Data *wd = elm_widget_data_get(obj);
 974
 975    if (!wd)
 976      return 0.0;
 977    return wd->first_interval;
 978 }