src/lib/elc_naviframe.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 typedef struct _Widget_Data Widget_Data;
   5 typedef struct _Elm_Naviframe_Item Elm_Naviframe_Item;
   6 typedef struct _Elm_Naviframe_Content_Item_Pair Elm_Naviframe_Content_Item_Pair;
   7 typedef struct _Elm_Naviframe_Text_Item_Pair Elm_Naviframe_Text_Item_Pair;
   8
   9 struct _Widget_Data
  10 {
  11    Eina_List    *stack;
  12    Evas_Object  *base;
  13    Eina_Bool     preserve: 1;
  14    Eina_Bool     pass_events: 1;
  15 };
  16
  17 struct _Elm_Naviframe_Content_Item_Pair
  18 {
  19    const char *part;
  20    Evas_Object *content;
  21    Elm_Naviframe_Item *it;
  22 };
  23
  24 struct _Elm_Naviframe_Text_Item_Pair
  25 {
  26    const char *part;
  27    const char *text;
  28 };
  29
  30 struct _Elm_Naviframe_Item
  31 {
  32    Elm_Widget_Item    base;
  33    Evas_Object       *title;
  34    Eina_List         *content_list;
  35    Eina_List         *text_list;
  36
  37    Evas_Object       *content;
  38    Evas_Object       *title_prev_btn;
  39    Evas_Object       *title_next_btn;
  40    const char        *style;
  41    Eina_Bool          back_btn: 1;
  42    Eina_Bool          title_visible: 1;
  43 };
  44
  45 static const char *widtype = NULL;
  46
  47 static const char SIG_TRANSITION_FINISHED[] = "transition,finished";
  48 static const char SIG_TITLE_CLICKED[] = "title,clicked";
  49
  50 static const Evas_Smart_Cb_Description _signals[] = {
  51        {SIG_TRANSITION_FINISHED, ""},
  52        {SIG_TITLE_CLICKED, ""},
  53        {NULL, NULL}
  54 };
  55
  56 static void _del_hook(Evas_Object *obj);
  57 static void _theme_hook(Evas_Object *obj);
  58 static void _disable_hook(Evas_Object *obj);
  59 static void _text_set_hook(Elm_Object_Item *it,
  60                            const char *part,
  61                            const char *label);
  62 static const char *_text_get_hook(const Elm_Object_Item *it,
  63                                    const char *part);
  64 static void _content_set_hook(Elm_Object_Item *it,
  65                               const char *part,
  66                               Evas_Object *content);
  67 static Evas_Object *_content_get_hook(const Elm_Object_Item *it,
  68                                       const char *part);
  69 static Evas_Object *_content_unset_hook(Elm_Object_Item *it,
  70                                         const char *part);
  71 static void _sizing_eval(Evas_Object *obj);
  72 static void _item_sizing_eval(Elm_Naviframe_Item *it);
  73 static void _move(void *data, Evas *e, Evas_Object *obj, void *event_info);
  74 static void _resize(void *data,
  75                     Evas *e,
  76                     Evas_Object *obj,
  77                     void *event_info);
  78 static void _title_clicked(void *data, Evas_Object *obj,
  79                            const char *emission,
  80                            const char *source);
  81 static void _back_btn_clicked(void *data,
  82                               Evas_Object *obj,
  83                               void *event_info);
  84 static Evas_Object *_back_btn_new(Evas_Object *obj);
  85 static void _item_content_del(void *data,
  86                               Evas *e,
  87                               Evas_Object *obj,
  88                               void *event_info);
  89 static void _title_content_del(void *data,
  90                                Evas *e,
  91                                Evas_Object *obj,
  92                                void *event_info);
  93 static void _title_prev_btn_del(void *data,
  94                                 Evas *e,
  95                                 Evas_Object *obj,
  96                                 void *event_info);
  97 static void _title_next_btn_del(void *data,
  98                                 Evas *e,
  99                                 Evas_Object *obj,
 100                                 void *event_info);
 101 static void _title_content_set(Elm_Naviframe_Item *it,
 102                                Elm_Naviframe_Content_Item_Pair *pair,
 103                                const char *part,
 104                                Evas_Object *content);
 105 static void _title_prev_btn_set(Elm_Naviframe_Item *it,
 106                                 Evas_Object *btn,
 107                                 Eina_Bool back_btn);
 108 static void _title_next_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn);
 109 static void _item_del(Elm_Naviframe_Item *it);
 110 static void _pushed_finished(void *data,
 111                              Evas_Object *obj,
 112                              const char *emission,
 113                              const char *source);
 114 static void _popped_finished(void *data,
 115                              Evas_Object *obj,
 116                              const char *emission,
 117                              const char *source);
 118 static void _show_finished(void *data,
 119                            Evas_Object *obj,
 120                            const char *emission,
 121                            const char *source);
 122 static void _item_content_set(Elm_Naviframe_Item *navi_it,
 123                               Evas_Object *content);
 124
 125 static void
 126 _del_hook(Evas_Object *obj)
 127 {
 128    Widget_Data *wd;
 129    Eina_List *list;
 130    Elm_Naviframe_Item *it;
 131
 132    wd = elm_widget_data_get(obj);
 133    if (!wd) return;
 134
 135    EINA_LIST_FOREACH(wd->stack, list, it)
 136      _item_del(it);
 137    eina_list_free(wd->stack);
 138    free(wd);
 139 }
 140
 141 static void
 142 _theme_hook(Evas_Object *obj __UNUSED__)
 143 {
 144    //FIXME:
 145 }
 146
 147 static void
 148 _disable_hook(Evas_Object *obj __UNUSED__)
 149 {
 150    //FIXME:
 151 }
 152
 153 static void
 154 _text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 155 {
 156    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 157
 158    Eina_List *l = NULL;
 159    Elm_Naviframe_Text_Item_Pair *pair = NULL;
 160    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 161    char buf[1024];
 162
 163    if (!part) return;
 164
 165    EINA_LIST_FOREACH(navi_it->text_list, l, pair)
 166      {
 167         if (!strcmp(part, pair->part))
 168           {
 169              if (pair->text)
 170                {
 171                   if (!strcmp(pair->text, label))
 172                     return;
 173                }
 174              break;
 175           }
 176      }
 177
 178    if (!pair)
 179      {
 180         pair = ELM_NEW(Elm_Naviframe_Text_Item_Pair);
 181         if (!pair)
 182           {
 183              ERR("Failed to allocate new text part of the item! : naviframe=%p", navi_it->base.widget);
 184              return;
 185           }
 186         eina_stringshare_replace(&pair->part, part);
 187         navi_it->text_list = eina_list_append(navi_it->text_list, pair);
 188      }
 189
 190    eina_stringshare_replace(&pair->text, label);
 191    edje_object_part_text_set(navi_it->title, part, label);
 192
 193    snprintf(buf, sizeof(buf), "elm,state,%s,show", part);
 194
 195    if (label)
 196      edje_object_signal_emit(navi_it->title, buf, "elm");
 197    else
 198      edje_object_signal_emit(navi_it->title, buf, "elm");
 199
 200    _item_sizing_eval(navi_it);
 201 }
 202
 203 static const char *
 204 _text_get_hook(const Elm_Object_Item *it, const char *part)
 205 {
 206    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 207    Eina_List *l = NULL;
 208    Elm_Naviframe_Text_Item_Pair *pair = NULL;
 209    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 210
 211    if (!part) return NULL;
 212
 213    EINA_LIST_FOREACH(navi_it->text_list, l, pair)
 214      {
 215         if (!strcmp(part, pair->part))
 216           return pair->text;
 217      }
 218    return NULL;
 219 }
 220
 221 static void
 222 _content_set_hook(Elm_Object_Item *it,
 223                   const char *part,
 224                   Evas_Object *content)
 225 {
 226    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 227
 228    Elm_Naviframe_Content_Item_Pair *pair = NULL;
 229    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 230
 231    if (!part) return;
 232
 233    //Special Part Contents
 234    if (!strcmp(part, "elm.swallow.content"))
 235      {
 236        _item_content_set(navi_it, content);
 237        return;
 238      }
 239    if (!strcmp(part, "elm.swallow.prev_btn"))
 240      {
 241        _title_prev_btn_set(navi_it, content, EINA_FALSE);
 242        return;
 243      }
 244    else if(!strcmp(part, "elm.swallow.next_btn"))
 245      {
 246        _title_next_btn_set(navi_it, content);
 247        return;
 248      }
 249
 250    //Common Title Part Content
 251    _title_content_set(navi_it, pair, part, content);
 252 }
 253
 254 /*
 255    */
 256 static Evas_Object *
 257 _content_get_hook(const Elm_Object_Item *it,
 258                   const char *part)
 259 {
 260    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 261    Eina_List *l = NULL;
 262    Elm_Naviframe_Content_Item_Pair *pair = NULL;
 263    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 264
 265    EINA_LIST_FOREACH(navi_it->content_list, l, pair)
 266      {
 267         if (!strcmp(part, pair->part))
 268           return pair->content;
 269      }
 270    return NULL;
 271 }
 272
 273 static Evas_Object *
 274 _content_unset_hook(Elm_Object_Item *it __UNUSED__,
 275                     const char *part __UNUSED__)
 276 {
 277    //FIXME:
 278    return NULL;
 279 }
 280
 281 static void
 282 _sizing_eval(Evas_Object *obj)
 283 {
 284    Widget_Data *wd;
 285    Eina_List *list;
 286    Elm_Naviframe_Item *it;
 287    wd  = elm_widget_data_get(obj);
 288    if (!wd) return;
 289
 290    list = eina_list_last(wd->stack);
 291    if (!list) return;
 292
 293    EINA_LIST_FOREACH(wd->stack, list, it)
 294      _item_sizing_eval(it);
 295 }
 296
 297 static void
 298 _item_sizing_eval(Elm_Naviframe_Item *it)
 299 {
 300    Widget_Data *wd;
 301    Evas_Coord x, y, w, h;
 302    if (!it) return;
 303
 304    wd = elm_widget_data_get(it->base.widget);
 305    if (!wd) return;
 306
 307    evas_object_geometry_get(it->base.widget, &x, &y, &w, &h);
 308    evas_object_move(it->base.view, x, y);
 309    evas_object_resize(it->base.view, w, h);
 310 }
 311
 312 static void
 313 _move(void *data __UNUSED__,
 314       Evas *e __UNUSED__,
 315       Evas_Object *obj,
 316       void *event_info __UNUSED__)
 317 {
 318    _sizing_eval(obj);
 319 }
 320
 321 static void
 322 _resize(void *data __UNUSED__,
 323         Evas *e __UNUSED__,
 324         Evas_Object *obj,
 325         void *event_info __UNUSED__)
 326 {
 327    _sizing_eval(obj);
 328 }
 329
 330 static void
 331 _title_clicked(void *data,
 332                Evas_Object *obj __UNUSED__,
 333                const char *emission __UNUSED__,
 334                const char *source __UNUSED__)
 335 {
 336    Elm_Naviframe_Item *it = data;
 337    evas_object_smart_callback_call(it->base.widget, SIG_TITLE_CLICKED, it);
 338 }
 339
 340 static void
 341 _back_btn_clicked(void *data,
 342                   Evas_Object *obj __UNUSED__,
 343                   void *event_info __UNUSED__)
 344 {
 345    elm_naviframe_item_pop(data);
 346 }
 347
 348 static Evas_Object *
 349 _back_btn_new(Evas_Object *obj)
 350 {
 351    Evas_Object *btn;
 352    char buf[256];   //FIXME: How to guarantee the size of style name?
 353    btn = elm_button_add(obj);
 354    if (!btn) return NULL;
 355    evas_object_smart_callback_add(btn, "clicked", _back_btn_clicked, obj);
 356    snprintf(buf, sizeof(buf), "naviframe/back_btn/%s", elm_widget_style_get(obj));
 357    elm_object_style_set(btn, buf);
 358    return btn;
 359 }
 360
 361 static void
 362 _title_content_del(void *data,
 363                    Evas *e __UNUSED__,
 364                    Evas_Object *obj __UNUSED__,
 365                    void *event_info __UNUSED__)
 366 {
 367    char buf[1024];
 368    Elm_Naviframe_Content_Item_Pair *pair = data;
 369    Elm_Naviframe_Item *it = pair->it;
 370    snprintf(buf, sizeof(buf), "elm,state,%s,hide", pair->part);
 371    edje_object_signal_emit(it->title, buf, "elm");
 372    it->content_list = eina_list_remove(it->content_list, pair);
 373    eina_stringshare_del(pair->part);
 374    free(pair);
 375 }
 376
 377 static void
 378 _title_prev_btn_del(void *data,
 379                     Evas *e __UNUSED__,
 380                     Evas_Object *obj __UNUSED__,
 381                     void *event_info __UNUSED__)
 382 {
 383    Elm_Naviframe_Item *it = data;
 384    it->back_btn = EINA_FALSE;
 385    it->title_prev_btn = NULL;
 386 }
 387
 388 static void
 389 _title_next_btn_del(void *data,
 390                     Evas *e __UNUSED__,
 391                     Evas_Object *obj __UNUSED__,
 392                     void *event_info __UNUSED__)
 393 {
 394    Elm_Naviframe_Item *it = data;
 395    it->title_next_btn = NULL;
 396 }
 397
 398 static void
 399 _item_content_del(void *data,
 400                   Evas *e __UNUSED__,
 401                   Evas_Object *obj __UNUSED__,
 402                   void *event_info __UNUSED__)
 403 {
 404    Elm_Naviframe_Item *it = data;
 405    it->content = NULL;
 406    edje_object_signal_emit(it->base.view, "elm,state,content,hide", "elm");
 407 }
 408
 409 static void
 410 _title_content_set(Elm_Naviframe_Item *it,
 411                    Elm_Naviframe_Content_Item_Pair *pair,
 412                    const char *part,
 413                    Evas_Object *content)
 414 {
 415    Eina_List *l = NULL;
 416    char buf[1024];
 417
 418    EINA_LIST_FOREACH(it->content_list, l, pair)
 419      {
 420         if (!strcmp(part, pair->part))
 421           {
 422              if (pair->content == content) return;
 423              break;
 424           }
 425      }
 426
 427    if (!pair)
 428      {
 429         pair = ELM_NEW(Elm_Naviframe_Content_Item_Pair);
 430         if (!pair)
 431           {
 432              ERR("Failed to allocate new content part of the item! : naviframe=%p", it->base.widget);
 433              return;
 434           }
 435         pair->it = it;
 436         eina_stringshare_replace(&pair->part, part);
 437         it->content_list = eina_list_append(it->content_list, pair);
 438      }
 439
 440    if (pair->content) evas_object_del(pair->content);
 441    pair->content = content;
 442
 443    if (!content)
 444      {
 445         snprintf(buf, sizeof(buf), "elm,state,%s,hide", part);
 446         edje_object_signal_emit(it->title, buf, "elm");
 447         return;
 448      }
 449
 450    elm_widget_sub_object_add(it->base.widget, content);
 451    edje_object_part_swallow(it->title, part, content);
 452    snprintf(buf, sizeof(buf), "elm,state,%s,show", part);
 453    edje_object_signal_emit(it->title, buf, "elm");
 454    evas_object_event_callback_add(content,
 455                                   EVAS_CALLBACK_DEL,
 456                                   _title_content_del,
 457                                   pair);
 458    _item_sizing_eval(it);
 459 }
 460
 461 static void
 462 _title_prev_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn, Eina_Bool back_btn)
 463 {
 464    char buf[256];   //FIXME: How to guarantee the size of style name?
 465
 466    if (it->title_prev_btn == btn) return;
 467
 468    if (it->title_prev_btn)
 469      evas_object_del(it->title_prev_btn);
 470
 471    it->title_prev_btn = btn;
 472
 473    if (!btn) return;
 474
 475    if (!back_btn)
 476      {
 477         snprintf(buf,
 478                  sizeof(buf),
 479                  "naviframe/prev_btn/%s",
 480                  elm_widget_style_get(it->base.widget));
 481         elm_object_style_set(btn, buf);
 482      }
 483    elm_widget_sub_object_add(it->base.widget, btn);
 484    evas_object_event_callback_add(btn,
 485                                   EVAS_CALLBACK_DEL,
 486                                   _title_prev_btn_del,
 487                                   it);
 488    edje_object_part_swallow(it->title, "elm.swallow.prev_btn", btn);
 489    it->back_btn = back_btn;
 490
 491    _item_sizing_eval(it);
 492 }
 493
 494 static void
 495 _title_next_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn)
 496 {
 497    char buf[256];   //FIXME: How to guarantee the size of style name?
 498
 499    if (it->title_next_btn == btn) return;
 500
 501    if (it->title_next_btn)
 502      evas_object_del(it->title_next_btn);
 503
 504    it->title_next_btn = btn;
 505
 506    if (!btn) return;
 507
 508    snprintf(buf,
 509             sizeof(buf),
 510             "naviframe/next_btn/%s",
 511             elm_widget_style_get(it->base.widget));
 512    elm_object_style_set(btn, buf);
 513    elm_widget_sub_object_add(it->base.widget, btn);
 514    evas_object_event_callback_add(btn,
 515                                   EVAS_CALLBACK_DEL,
 516                                   _title_next_btn_del,
 517                                   it);
 518    edje_object_part_swallow(it->title, "elm.swallow.next_btn", btn);
 519
 520    _item_sizing_eval(it);
 521 }
 522
 523 static void
 524 _item_del(Elm_Naviframe_Item *it)
 525 {
 526    Widget_Data *wd;
 527    Eina_List *l;
 528    Elm_Naviframe_Content_Item_Pair *content_pair;
 529    Elm_Naviframe_Text_Item_Pair *text_pair;
 530
 531    if (!it) return;
 532
 533    wd = elm_widget_data_get(it->base.widget);
 534    if (!wd) return;
 535
 536    if (it->title_prev_btn)
 537      evas_object_del(it->title_prev_btn);
 538    if (it->title_next_btn)
 539      evas_object_del(it->title_next_btn);
 540       if ((it->content) && (!wd->preserve))
 541      evas_object_del(it->content);
 542
 543    EINA_LIST_FOREACH(it->content_list, l, content_pair)
 544      evas_object_del(content_pair->content);
 545
 546    EINA_LIST_FOREACH(it->text_list, l, text_pair)
 547      {
 548         eina_stringshare_del(text_pair->part);
 549         eina_stringshare_del(text_pair->text);
 550      }
 551
 552    eina_list_free(it->content_list);
 553    eina_list_free(it->text_list);
 554
 555    evas_object_del(it->title);
 556    evas_object_del(it->base.view);
 557
 558    wd->stack = eina_list_remove(wd->stack, it);
 559
 560    free(it);
 561 }
 562
 563 static void
 564 _pushed_finished(void *data,
 565                  Evas_Object *obj __UNUSED__,
 566                  const char *emission __UNUSED__,
 567                  const char *source __UNUSED__)
 568 {
 569    Elm_Naviframe_Item *it = data;
 570    if (!it) return;
 571    evas_object_hide(it->base.view);
 572 }
 573
 574 static void
 575 _popped_finished(void *data,
 576                  Evas_Object *obj __UNUSED__,
 577                  const char *emission __UNUSED__,
 578                  const char *source __UNUSED__)
 579 {
 580    _item_del(data);
 581 }
 582
 583 static void
 584 _show_finished(void *data,
 585                Evas_Object *obj __UNUSED__,
 586                const char *emission __UNUSED__,
 587                const char *source __UNUSED__)
 588 {
 589    Elm_Naviframe_Item *it;
 590    Widget_Data *wd;
 591
 592    it = data;
 593    if (!it) return;
 594    wd =  elm_widget_data_get(it->base.widget);
 595    if (!wd) return;
 596
 597    evas_object_smart_callback_call(it->base.widget,
 598                                    SIG_TRANSITION_FINISHED,
 599                                    (void *) EINA_TRUE);
 600    if (wd->pass_events)
 601      evas_object_pass_events_set(wd->base, EINA_FALSE);
 602 }
 603
 604 static void
 605 _item_content_set(Elm_Naviframe_Item *navi_it, Evas_Object *content)
 606 {
 607    if (navi_it->content == content) return;
 608    if (navi_it->content) evas_object_del(navi_it->content);
 609    elm_widget_sub_object_add(navi_it->base.widget, content);
 610    edje_object_part_swallow(navi_it->base.view, "elm.swallow.content", content);
 611    if (content)
 612      edje_object_signal_emit(navi_it->base.view,
 613                              "elm,state,content,show",
 614                              "elm");
 615    else
 616      edje_object_signal_emit(navi_it->base.view,
 617                              "elm,state,content,hide",
 618                              "elm");
 619    evas_object_event_callback_add(content,
 620                                   EVAS_CALLBACK_DEL,
 621                                   _item_content_del,
 622                                   navi_it);
 623    navi_it->content = content;
 624    _item_sizing_eval(navi_it);
 625 }
 626
 627 EAPI Evas_Object *
 628 elm_naviframe_add(Evas_Object *parent)
 629 {
 630    Evas_Object *obj;
 631    Evas *e;
 632    Widget_Data *wd;
 633
 634    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 635    ELM_SET_WIDTYPE(widtype, "naviframe");
 636    elm_widget_type_set(obj, "naviframe");
 637    elm_widget_sub_object_add(parent, obj);
 638    elm_widget_data_set(obj, wd);
 639    elm_widget_del_hook_set(obj, _del_hook);
 640    elm_widget_disable_hook_set(obj, _disable_hook);
 641    elm_widget_theme_hook_set(obj, _theme_hook);
 642
 643    //base
 644    wd->base = edje_object_add(e);
 645    elm_widget_resize_object_set(obj, wd->base);
 646    _elm_theme_object_set(obj, wd->base, "naviframe", "base", "default");
 647
 648    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, obj);
 649    evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, obj);
 650    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 651
 652    wd->pass_events = EINA_TRUE;
 653
 654    return obj;
 655 }
 656
 657 EAPI Elm_Object_Item *
 658 elm_naviframe_item_push(Evas_Object *obj, const char *title_label, Evas_Object *prev_btn, Evas_Object *next_btn, Evas_Object *content, const char *item_style)
 659 {
 660    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 661    Widget_Data *wd;
 662    Elm_Naviframe_Item *prev_it, *it;
 663
 664    wd = elm_widget_data_get(obj);
 665    if (!wd) return NULL;
 666
 667    //create item
 668    it = elm_widget_item_new(obj, Elm_Naviframe_Item);
 669    if (!it)
 670      {
 671         ERR("Failed to allocate new item! : naviframe=%p", obj);
 672         return NULL;
 673      }
 674
 675    elm_widget_item_text_set_hook_set(it, _text_set_hook);
 676    elm_widget_item_text_get_hook_set(it, _text_get_hook);
 677    elm_widget_item_content_set_hook_set(it, _content_set_hook);
 678    elm_widget_item_content_get_hook_set(it, _content_get_hook);
 679    elm_widget_item_content_unset_hook_set(it, _content_unset_hook);
 680
 681    //item base layout
 682    it->base.view = edje_object_add(evas_object_evas_get(obj));
 683    evas_object_smart_member_add(it->base.view, wd->base);
 684    elm_widget_sub_object_add(obj, it->base.view);
 685    edje_object_signal_callback_add(it->base.view,
 686                                    "elm,action,show,finished",
 687                                    "",
 688                                    _show_finished, it);
 689    edje_object_signal_callback_add(it->base.view,
 690                                    "elm,action,pushed,finished",
 691                                    "",
 692                                    _pushed_finished, it);
 693    edje_object_signal_callback_add(it->base.view,
 694                                    "elm,action,popped,finished",
 695                                    "",
 696                                    _popped_finished, it);
 697    elm_naviframe_item_style_set(ELM_CAST(it), item_style);
 698
 699    //title
 700    it->title = edje_object_add(evas_object_evas_get(obj));
 701    elm_widget_sub_object_add(obj, it->title);
 702    _elm_theme_object_set(obj,
 703                          it->title, "naviframe",
 704                          "title",
 705                          elm_widget_style_get(obj));
 706    edje_object_signal_callback_add(it->title,
 707                                    "elm,action,clicked",
 708                                    "elm",
 709                                    _title_clicked, it);
 710
 711    _text_set_hook(ELM_CAST(it), "elm.text.title", title_label);
 712
 713    //title buttons
 714    if ((!prev_btn) && (eina_list_count(wd->stack)))
 715      {
 716         prev_btn = _back_btn_new(obj);
 717         _title_prev_btn_set(it, prev_btn, EINA_TRUE);
 718      }
 719    else
 720      _title_prev_btn_set(it, prev_btn, EINA_FALSE);
 721
 722    _title_next_btn_set(it, next_btn);
 723    edje_object_part_swallow(it->base.view, "elm.swallow.title", it->title);
 724
 725    _item_content_set(it, content);
 726
 727    _item_sizing_eval(it);
 728    evas_object_show(it->base.view);
 729
 730    prev_it = ELM_CAST(elm_naviframe_top_item_get(obj));
 731    if (prev_it)
 732      {
 733         if (wd->pass_events)
 734           evas_object_pass_events_set(wd->base, EINA_TRUE);
 735         edje_object_signal_emit(prev_it->base.view,
 736                                 "elm,state,pushed",
 737                                 "elm");
 738         edje_object_signal_emit(it->base.view,
 739                                 "elm,state,show",
 740                                 "elm");
 741      }
 742    else
 743      edje_object_signal_emit(it->base.view, "elm,state,visible", "elm");
 744    it->title_visible = EINA_TRUE;
 745    wd->stack = eina_list_append(wd->stack, it);
 746    return ELM_CAST(it);
 747 }
 748
 749 EAPI Evas_Object *
 750 elm_naviframe_item_pop(Evas_Object *obj)
 751 {
 752    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 753    Elm_Naviframe_Item *it, *prev_it;
 754    Widget_Data *wd;
 755    Evas_Object *content = NULL;
 756
 757    wd = elm_widget_data_get(obj);
 758    if (!wd) return NULL;
 759
 760    it = ELM_CAST(elm_naviframe_top_item_get(obj));
 761    if (!it) return NULL;
 762    wd->stack = eina_list_remove(wd->stack, it);
 763
 764    if (wd->preserve)
 765      content = it->content;
 766
 767    prev_it = ELM_CAST(elm_naviframe_top_item_get(obj));
 768    if (prev_it)
 769      {
 770         if (wd->pass_events)
 771           evas_object_pass_events_set(wd->base, EINA_TRUE);
 772         evas_object_show(prev_it->base.view);
 773         evas_object_raise(prev_it->base.view);
 774         edje_object_signal_emit(prev_it->base.view,
 775                                 "elm,state,show",
 776                                 "elm");
 777         edje_object_signal_emit(it->base.view, "elm,state,popped", "elm");
 778      }
 779    else
 780      _item_del(it);
 781
 782    return content;
 783 }
 784
 785 EAPI void
 786 elm_naviframe_content_preserve_on_pop_set(Evas_Object *obj, Eina_Bool preserve)
 787 {
 788    ELM_CHECK_WIDTYPE(obj, widtype);
 789    Widget_Data *wd = elm_widget_data_get(obj);
 790    if (!wd) return;
 791    wd->preserve = !!preserve;
 792 }
 793
 794 EAPI Eina_Bool
 795 elm_naviframe_content_preserve_on_pop_get(const Evas_Object *obj)
 796 {
 797    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 798    Widget_Data *wd = elm_widget_data_get(obj);
 799    if (!wd) return EINA_FALSE;
 800    return wd->preserve;
 801 }
 802
 803 EAPI Elm_Object_Item*
 804 elm_naviframe_top_item_get(const Evas_Object *obj)
 805 {
 806    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 807    Widget_Data *wd = elm_widget_data_get(obj);
 808    if ((!wd) || (!wd->stack)) return NULL;
 809    return eina_list_last(wd->stack)->data;
 810 }
 811
 812 EAPI Elm_Object_Item*
 813 elm_naviframe_bottom_item_get(const Evas_Object *obj)
 814 {
 815    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 816    Widget_Data *wd = elm_widget_data_get(obj);
 817    if (!wd) return NULL;
 818    return NULL;
 819 }
 820
 821 EAPI void
 822 elm_naviframe_item_style_set(Elm_Object_Item *it, const char *item_style)
 823 {
 824    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 825    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 826
 827    char buf[256];
 828
 829    if (!item_style) sprintf(buf, "item/basic");
 830    else
 831      {
 832         if (strlen(item_style) > sizeof(buf))
 833           WRN("too much long style name! : naviframe=%p", navi_it->base.widget);
 834         else
 835           sprintf(buf, "item/%s", item_style);
 836      }
 837    _elm_theme_object_set(navi_it->base.widget,
 838                          navi_it->base.view,
 839                          "naviframe",
 840                          buf,
 841                          elm_widget_style_get(navi_it->base.widget));
 842 }
 843
 844 EAPI const char *
 845 elm_naviframe_item_style_get(const Elm_Object_Item *it)
 846 {
 847    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 848    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 849    return navi_it->style;
 850 }
 851
 852 EAPI void
 853 elm_naviframe_item_title_visible_set(Elm_Object_Item *it, Eina_Bool visible)
 854 {
 855    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 856    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 857
 858    visible = !!visible;
 859    if (navi_it->title_visible == visible) return;
 860
 861    if (visible)
 862      edje_object_signal_emit(navi_it->base.view, "elm,state,title,show", "elm");
 863    else
 864      edje_object_signal_emit(navi_it->base.view, "elm,state,title,hide", "elm");
 865
 866    navi_it->title_visible = visible;
 867 }
 868
 869 EAPI Eina_Bool
 870 elm_naviframe_item_title_visible_get(const Elm_Object_Item *it)
 871 {
 872    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
 873    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 874    return navi_it->title_visible;
 875 }
 876