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    Eina_List         *content_list;
  34    Eina_List         *text_list;
  35    Evas_Object       *content;
  36    Evas_Object       *title_prev_btn;
  37    Evas_Object       *title_next_btn;
  38    const char        *style;
  39    Eina_Bool          back_btn: 1;
  40    Eina_Bool          title_visible: 1;
  41 };
  42
  43 static const char *widtype = NULL;
  44
  45 static const char SIG_TRANSITION_FINISHED[] = "transition,finished";
  46 static const char SIG_TITLE_CLICKED[] = "title,clicked";
  47
  48 static const Evas_Smart_Cb_Description _signals[] = {
  49        {SIG_TRANSITION_FINISHED, ""},
  50        {SIG_TITLE_CLICKED, ""},
  51        {NULL, NULL}
  52 };
  53
  54 static void _del_hook(Evas_Object *obj);
  55 static void _theme_hook(Evas_Object *obj);
  56 static void _emit_hook(Evas_Object *obj,
  57                        const char *emission,
  58                        const char *source);
  59 static void _disable_hook(Evas_Object *obj);
  60 static void _text_set_hook(Elm_Object_Item *it,
  61                            const char *part,
  62                            const char *label);
  63 static const char *_text_get_hook(const Elm_Object_Item *it,
  64                                    const char *part);
  65 static void _content_set_hook(Elm_Object_Item *it,
  66                               const char *part,
  67                               Evas_Object *content);
  68 static Evas_Object *_content_get_hook(const Elm_Object_Item *it,
  69                                       const char *part);
  70 static Evas_Object *_content_unset_hook(Elm_Object_Item *it,
  71                                         const char *part);
  72 static void _sizing_eval(Evas_Object *obj);
  73 static void _item_sizing_eval(Elm_Naviframe_Item *it);
  74 static void _move(void *data, Evas *e, Evas_Object *obj, void *event_info);
  75 static void _resize(void *data,
  76                     Evas *e,
  77                     Evas_Object *obj,
  78                     void *event_info);
  79 static void _title_clicked(void *data, Evas_Object *obj,
  80                            const char *emission,
  81                            const char *source);
  82 static void _back_btn_clicked(void *data,
  83                               Evas_Object *obj,
  84                               void *event_info);
  85 static Evas_Object *_back_btn_new(Evas_Object *obj);
  86 static void _item_content_del(void *data,
  87                               Evas *e,
  88                               Evas_Object *obj,
  89                               void *event_info);
  90 static void _title_content_del(void *data,
  91                                Evas *e,
  92                                Evas_Object *obj,
  93                                void *event_info);
  94 static void _title_prev_btn_del(void *data,
  95                                 Evas *e,
  96                                 Evas_Object *obj,
  97                                 void *event_info);
  98 static void _title_next_btn_del(void *data,
  99                                 Evas *e,
 100                                 Evas_Object *obj,
 101                                 void *event_info);
 102 static void _title_content_set(Elm_Naviframe_Item *it,
 103                                Elm_Naviframe_Content_Item_Pair *pair,
 104                                const char *part,
 105                                Evas_Object *content);
 106 static void _title_prev_btn_set(Elm_Naviframe_Item *it,
 107                                 Evas_Object *btn,
 108                                 Eina_Bool back_btn);
 109 static void _title_next_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn);
 110 static void _item_del(Elm_Naviframe_Item *it);
 111 static void _pushed_finished(void *data,
 112                              Evas_Object *obj,
 113                              const char *emission,
 114                              const char *source);
 115 static void _popped_finished(void *data,
 116                              Evas_Object *obj,
 117                              const char *emission,
 118                              const char *source);
 119 static void _show_finished(void *data,
 120                            Evas_Object *obj,
 121                            const char *emission,
 122                            const char *source);
 123 static void _item_content_set(Elm_Naviframe_Item *navi_it,
 124                               Evas_Object *content);
 125
 126 static void
 127 _del_hook(Evas_Object *obj)
 128 {
 129    Widget_Data *wd;
 130    Eina_List *list;
 131    Elm_Naviframe_Item *it;
 132
 133    wd = elm_widget_data_get(obj);
 134    if (!wd) return;
 135
 136    EINA_LIST_FOREACH(wd->stack, list, it)
 137      _item_del(it);
 138    eina_list_free(wd->stack);
 139    free(wd);
 140 }
 141
 142 static void
 143 _theme_hook(Evas_Object *obj __UNUSED__)
 144 {
 145    //FIXME:
 146 }
 147
 148 static void _emit_hook(Evas_Object *obj,
 149                        const char *emission,
 150                        const char *source)
 151 {
 152    ELM_CHECK_WIDTYPE(obj, widtype);
 153
 154    Widget_Data *wd = elm_widget_data_get(obj);
 155    if (!wd) return;
 156
 157    edje_object_signal_emit(wd->base, emission, source);
 158 }
 159
 160 static void
 161 _disable_hook(Evas_Object *obj __UNUSED__)
 162 {
 163    //FIXME:
 164 }
 165
 166 static void
 167 _text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 168 {
 169    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 170
 171    Eina_List *l = NULL;
 172    Elm_Naviframe_Text_Item_Pair *pair = NULL;
 173    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 174    char buf[1024];
 175
 176    if (!part)
 177      snprintf(buf, sizeof(buf), "elm.text.title");
 178    else
 179      snprintf(buf, sizeof(buf), "%s", part);
 180
 181    EINA_LIST_FOREACH(navi_it->text_list, l, pair)
 182      {
 183         if (!strcmp(buf, pair->part))
 184           {
 185              if (pair->text)
 186                {
 187                   if (!strcmp(pair->text, label))
 188                     return;
 189                }
 190              break;
 191           }
 192      }
 193
 194    if (!pair)
 195      {
 196         pair = ELM_NEW(Elm_Naviframe_Text_Item_Pair);
 197         if (!pair)
 198           {
 199              ERR("Failed to allocate new text part of the item! : naviframe=%p", navi_it->base.widget);
 200              return;
 201           }
 202         eina_stringshare_replace(&pair->part, buf);
 203         navi_it->text_list = eina_list_append(navi_it->text_list, pair);
 204      }
 205
 206    eina_stringshare_replace(&pair->text, label);
 207    edje_object_part_text_set(navi_it->base.view, buf, label);
 208
 209    snprintf(buf, sizeof(buf), "elm,state,%s,show", buf);
 210
 211    if (label)
 212      edje_object_signal_emit(navi_it->base.view, buf, "elm");
 213    else
 214      edje_object_signal_emit(navi_it->base.view, buf, "elm");
 215
 216    _item_sizing_eval(navi_it);
 217 }
 218
 219 static const char *
 220 _text_get_hook(const Elm_Object_Item *it, const char *part)
 221 {
 222    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 223    Eina_List *l = NULL;
 224    Elm_Naviframe_Text_Item_Pair *pair = NULL;
 225    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 226    char buf[1024];
 227
 228    if (!part)
 229      snprintf(buf, sizeof(buf), "elm.text.title");
 230    else
 231      snprintf(buf, sizeof(buf), "%s", part);
 232
 233    EINA_LIST_FOREACH(navi_it->text_list, l, pair)
 234      {
 235         if (!strcmp(buf, pair->part))
 236           return pair->text;
 237      }
 238    return NULL;
 239 }
 240
 241 static void
 242 _content_set_hook(Elm_Object_Item *it,
 243                   const char *part,
 244                   Evas_Object *content)
 245 {
 246    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 247
 248    Elm_Naviframe_Content_Item_Pair *pair = NULL;
 249    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 250
 251    //specified parts
 252    if ((!part) || (!strcmp(part, "elm.swallow.content")))
 253      {
 254        _item_content_set(navi_it, content);
 255        return;
 256      }
 257    else if (!strcmp(part, "elm.swallow.prev_btn"))
 258      {
 259        _title_prev_btn_set(navi_it, content, EINA_FALSE);
 260        return;
 261      }
 262    else if(!strcmp(part, "elm.swallow.next_btn"))
 263      {
 264        _title_next_btn_set(navi_it, content);
 265        return;
 266      }
 267
 268    //common part
 269    _title_content_set(navi_it, pair, part, content);
 270 }
 271
 272 /*
 273    */
 274 static Evas_Object *
 275 _content_get_hook(const Elm_Object_Item *it,
 276                   const char *part)
 277 {
 278    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 279    Eina_List *l = NULL;
 280    Elm_Naviframe_Content_Item_Pair *pair = NULL;
 281    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 282
 283    //specified parts
 284    if ((!part) || (!strcmp(part, "elm.swallow.content")))
 285      return navi_it->content;
 286    else if (!strcmp(part, "elm.swallow.prev_btn"))
 287      return navi_it->title_prev_btn;
 288    else if(!strcmp(part, "elm.swallow.next_btn"))
 289      return navi_it->title_next_btn;
 290
 291    //common parts
 292    EINA_LIST_FOREACH(navi_it->content_list, l, pair)
 293      {
 294         if (!strcmp(part, pair->part))
 295           return pair->content;
 296      }
 297    return NULL;
 298 }
 299
 300 static Evas_Object *
 301 _content_unset_hook(Elm_Object_Item *it __UNUSED__,
 302                     const char *part __UNUSED__)
 303 {
 304    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 305    Eina_List *l = NULL;
 306    Elm_Naviframe_Content_Item_Pair *pair = NULL;
 307    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 308    Evas_Object *content = NULL;
 309    char buf[1028];
 310
 311   //specified parts
 312   //FIXME: could be unset the below specified contents also.
 313    if (!part ||
 314        !strcmp(part, "elm.swallow.content") ||
 315        !strcmp(part, "elm.swallow.prev_btn") ||
 316        !strcmp(part, "elm.swallow.next_btn"))
 317      {
 318         WRN("You can not unset the content! : naviframe=%p",
 319             navi_it->base.widget);
 320         return NULL;
 321      }
 322
 323   //common parts
 324    EINA_LIST_FOREACH(navi_it->content_list, l, pair)
 325      {
 326         if (!strcmp(part, pair->part))
 327           {
 328              content = pair->content;
 329              eina_stringshare_del(pair->part);
 330              navi_it->content_list = eina_list_remove(navi_it->content_list,
 331                                                       pair);
 332              free(pair);
 333              break;
 334           }
 335      }
 336
 337    if (!content) return NULL;
 338
 339    elm_widget_sub_object_del(navi_it->base.widget, content);
 340    edje_object_part_unswallow(navi_it->base.view, content);
 341    snprintf(buf, sizeof(buf), "elm,state,%s,hide", part);
 342    edje_object_signal_emit(navi_it->base.view, buf, "elm");
 343    evas_object_event_callback_del(content,
 344                                   EVAS_CALLBACK_DEL,
 345                                   _title_content_del);
 346    _item_sizing_eval(navi_it);
 347
 348    return content;
 349 }
 350
 351 static void
 352 _sizing_eval(Evas_Object *obj)
 353 {
 354    Widget_Data *wd;
 355    Eina_List *list;
 356    Elm_Naviframe_Item *it;
 357    wd  = elm_widget_data_get(obj);
 358    if (!wd) return;
 359
 360    list = eina_list_last(wd->stack);
 361    if (!list) return;
 362
 363    EINA_LIST_FOREACH(wd->stack, list, it)
 364      _item_sizing_eval(it);
 365 }
 366
 367 static void
 368 _item_sizing_eval(Elm_Naviframe_Item *it)
 369 {
 370    Widget_Data *wd;
 371    Evas_Coord x, y, w, h;
 372    if (!it) return;
 373
 374    wd = elm_widget_data_get(it->base.widget);
 375    if (!wd) return;
 376
 377    evas_object_geometry_get(it->base.widget, &x, &y, &w, &h);
 378    evas_object_move(it->base.view, x, y);
 379    evas_object_resize(it->base.view, w, h);
 380 }
 381
 382 static void
 383 _move(void *data __UNUSED__,
 384       Evas *e __UNUSED__,
 385       Evas_Object *obj,
 386       void *event_info __UNUSED__)
 387 {
 388    _sizing_eval(obj);
 389 }
 390
 391 static void
 392 _resize(void *data __UNUSED__,
 393         Evas *e __UNUSED__,
 394         Evas_Object *obj,
 395         void *event_info __UNUSED__)
 396 {
 397    _sizing_eval(obj);
 398 }
 399
 400 static void
 401 _title_clicked(void *data,
 402                Evas_Object *obj __UNUSED__,
 403                const char *emission __UNUSED__,
 404                const char *source __UNUSED__)
 405 {
 406    Elm_Naviframe_Item *it = data;
 407    evas_object_smart_callback_call(it->base.widget, SIG_TITLE_CLICKED, it);
 408 }
 409
 410 static void
 411 _back_btn_clicked(void *data,
 412                   Evas_Object *obj __UNUSED__,
 413                   void *event_info __UNUSED__)
 414 {
 415    elm_naviframe_item_pop(data);
 416 }
 417
 418 static Evas_Object *
 419 _back_btn_new(Evas_Object *obj)
 420 {
 421    Evas_Object *btn;
 422    char buf[1024];
 423    btn = elm_button_add(obj);
 424    if (!btn) return NULL;
 425    evas_object_smart_callback_add(btn, "clicked", _back_btn_clicked, obj);
 426    snprintf(buf, sizeof(buf), "naviframe/back_btn/%s", elm_widget_style_get(obj));
 427    elm_object_style_set(btn, buf);
 428    return btn;
 429 }
 430
 431 static void
 432 _title_content_del(void *data,
 433                    Evas *e __UNUSED__,
 434                    Evas_Object *obj __UNUSED__,
 435                    void *event_info __UNUSED__)
 436 {
 437    char buf[1024];
 438    Elm_Naviframe_Content_Item_Pair *pair = data;
 439    Elm_Naviframe_Item *it = pair->it;
 440    snprintf(buf, sizeof(buf), "elm,state,%s,hide", pair->part);
 441    edje_object_signal_emit(it->base.view, buf, "elm");
 442    it->content_list = eina_list_remove(it->content_list, pair);
 443    eina_stringshare_del(pair->part);
 444    free(pair);
 445 }
 446
 447 static void
 448 _title_prev_btn_del(void *data,
 449                     Evas *e __UNUSED__,
 450                     Evas_Object *obj __UNUSED__,
 451                     void *event_info __UNUSED__)
 452 {
 453    Elm_Naviframe_Item *it = data;
 454    it->back_btn = EINA_FALSE;
 455    it->title_prev_btn = NULL;
 456 }
 457
 458 static void
 459 _title_next_btn_del(void *data,
 460                     Evas *e __UNUSED__,
 461                     Evas_Object *obj __UNUSED__,
 462                     void *event_info __UNUSED__)
 463 {
 464    Elm_Naviframe_Item *it = data;
 465    it->title_next_btn = NULL;
 466 }
 467
 468 static void
 469 _item_content_del(void *data,
 470                   Evas *e __UNUSED__,
 471                   Evas_Object *obj __UNUSED__,
 472                   void *event_info __UNUSED__)
 473 {
 474    Elm_Naviframe_Item *it = data;
 475    it->content = NULL;
 476    edje_object_signal_emit(it->base.view, "elm,state,content,hide", "elm");
 477 }
 478
 479 static void
 480 _title_content_set(Elm_Naviframe_Item *it,
 481                    Elm_Naviframe_Content_Item_Pair *pair,
 482                    const char *part,
 483                    Evas_Object *content)
 484 {
 485    Eina_List *l = NULL;
 486    char buf[1024];
 487
 488    EINA_LIST_FOREACH(it->content_list, l, pair)
 489      {
 490         if (!strcmp(part, pair->part))
 491           {
 492              if (pair->content == content) return;
 493              break;
 494           }
 495      }
 496
 497    if (!pair)
 498      {
 499         pair = ELM_NEW(Elm_Naviframe_Content_Item_Pair);
 500         if (!pair)
 501           {
 502              ERR("Failed to allocate new content part of the item! : naviframe=%p", it->base.widget);
 503              return;
 504           }
 505         pair->it = it;
 506         eina_stringshare_replace(&pair->part, part);
 507         it->content_list = eina_list_append(it->content_list, pair);
 508      }
 509
 510    if (pair->content) evas_object_del(pair->content);
 511    pair->content = content;
 512
 513    if (!content)
 514      {
 515         snprintf(buf, sizeof(buf), "elm,state,%s,hide", part);
 516         edje_object_signal_emit(it->base.view, buf, "elm");
 517         return;
 518      }
 519
 520    elm_widget_sub_object_add(it->base.widget, content);
 521    edje_object_part_swallow(it->base.view, part, content);
 522    snprintf(buf, sizeof(buf), "elm,state,%s,show", part);
 523    edje_object_signal_emit(it->base.view, buf, "elm");
 524    evas_object_event_callback_add(content,
 525                                   EVAS_CALLBACK_DEL,
 526                                   _title_content_del,
 527                                   pair);
 528    _item_sizing_eval(it);
 529 }
 530
 531 static void
 532 _title_prev_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn, Eina_Bool back_btn)
 533 {
 534    if (it->title_prev_btn == btn) return;
 535
 536    if (it->title_prev_btn)
 537      evas_object_del(it->title_prev_btn);
 538
 539    it->title_prev_btn = btn;
 540
 541    if (!btn) return;
 542
 543    elm_widget_sub_object_add(it->base.widget, btn);
 544    evas_object_event_callback_add(btn,
 545                                   EVAS_CALLBACK_DEL,
 546                                   _title_prev_btn_del,
 547                                   it);
 548    edje_object_part_swallow(it->base.view, "elm.swallow.prev_btn", btn);
 549    it->back_btn = back_btn;
 550
 551    _item_sizing_eval(it);
 552 }
 553
 554 static void
 555 _title_next_btn_set(Elm_Naviframe_Item *it, Evas_Object *btn)
 556 {
 557    if (it->title_next_btn == btn) return;
 558
 559    if (it->title_next_btn)
 560      evas_object_del(it->title_next_btn);
 561
 562    it->title_next_btn = btn;
 563
 564    if (!btn) return;
 565
 566    elm_widget_sub_object_add(it->base.widget, btn);
 567    evas_object_event_callback_add(btn,
 568                                   EVAS_CALLBACK_DEL,
 569                                   _title_next_btn_del,
 570                                   it);
 571    edje_object_part_swallow(it->base.view, "elm.swallow.next_btn", btn);
 572
 573    _item_sizing_eval(it);
 574 }
 575
 576 static void
 577 _item_del(Elm_Naviframe_Item *it)
 578 {
 579    Widget_Data *wd;
 580    Eina_List *l;
 581    Elm_Naviframe_Content_Item_Pair *content_pair;
 582    Elm_Naviframe_Text_Item_Pair *text_pair;
 583
 584    if (!it) return;
 585
 586    wd = elm_widget_data_get(it->base.widget);
 587    if (!wd) return;
 588
 589    if (it->title_prev_btn)
 590      evas_object_del(it->title_prev_btn);
 591    if (it->title_next_btn)
 592      evas_object_del(it->title_next_btn);
 593       if ((it->content) && (!wd->preserve))
 594      evas_object_del(it->content);
 595
 596    EINA_LIST_FOREACH(it->content_list, l, content_pair)
 597      evas_object_del(content_pair->content);
 598
 599    EINA_LIST_FOREACH(it->text_list, l, text_pair)
 600      {
 601         eina_stringshare_del(text_pair->part);
 602         eina_stringshare_del(text_pair->text);
 603      }
 604
 605    eina_list_free(it->content_list);
 606    eina_list_free(it->text_list);
 607
 608    evas_object_del(it->base.view);
 609
 610    wd->stack = eina_list_remove(wd->stack, it);
 611
 612    free(it);
 613 }
 614
 615 static void
 616 _pushed_finished(void *data,
 617                  Evas_Object *obj __UNUSED__,
 618                  const char *emission __UNUSED__,
 619                  const char *source __UNUSED__)
 620 {
 621    Elm_Naviframe_Item *it = data;
 622    if (!it) return;
 623    evas_object_hide(it->base.view);
 624 }
 625
 626 static void
 627 _popped_finished(void *data,
 628                  Evas_Object *obj __UNUSED__,
 629                  const char *emission __UNUSED__,
 630                  const char *source __UNUSED__)
 631 {
 632    _item_del(data);
 633 }
 634
 635 static void
 636 _show_finished(void *data,
 637                Evas_Object *obj __UNUSED__,
 638                const char *emission __UNUSED__,
 639                const char *source __UNUSED__)
 640 {
 641    Elm_Naviframe_Item *it;
 642    Widget_Data *wd;
 643
 644    it = data;
 645    if (!it) return;
 646    wd =  elm_widget_data_get(it->base.widget);
 647    if (!wd) return;
 648
 649    evas_object_smart_callback_call(it->base.widget,
 650                                    SIG_TRANSITION_FINISHED,
 651                                    (void *) EINA_TRUE);
 652    if (wd->pass_events)
 653      evas_object_pass_events_set(wd->base, EINA_FALSE);
 654 }
 655
 656 static void
 657 _item_content_set(Elm_Naviframe_Item *navi_it, Evas_Object *content)
 658 {
 659    if (navi_it->content == content) return;
 660    if (navi_it->content) evas_object_del(navi_it->content);
 661    elm_widget_sub_object_add(navi_it->base.widget, content);
 662    edje_object_part_swallow(navi_it->base.view, "elm.swallow.content", content);
 663    if (content)
 664      edje_object_signal_emit(navi_it->base.view,
 665                              "elm,state,content,show",
 666                              "elm");
 667    else
 668      edje_object_signal_emit(navi_it->base.view,
 669                              "elm,state,content,hide",
 670                              "elm");
 671    evas_object_event_callback_add(content,
 672                                   EVAS_CALLBACK_DEL,
 673                                   _item_content_del,
 674                                   navi_it);
 675    navi_it->content = content;
 676    _item_sizing_eval(navi_it);
 677 }
 678
 679 EAPI Evas_Object *
 680 elm_naviframe_add(Evas_Object *parent)
 681 {
 682    Evas_Object *obj;
 683    Evas *e;
 684    Widget_Data *wd;
 685
 686    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 687    ELM_SET_WIDTYPE(widtype, "naviframe");
 688    elm_widget_type_set(obj, "naviframe");
 689    elm_widget_sub_object_add(parent, obj);
 690    elm_widget_data_set(obj, wd);
 691    elm_widget_del_hook_set(obj, _del_hook);
 692    elm_widget_disable_hook_set(obj, _disable_hook);
 693    elm_widget_theme_hook_set(obj, _theme_hook);
 694    elm_widget_signal_emit_hook_set(obj, _emit_hook);
 695
 696    //base
 697    wd->base = edje_object_add(e);
 698    elm_widget_resize_object_set(obj, wd->base);
 699    _elm_theme_object_set(obj, wd->base, "naviframe", "base", "default");
 700
 701    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, obj);
 702    evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, obj);
 703    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 704
 705    wd->pass_events = EINA_TRUE;
 706
 707    return obj;
 708 }
 709
 710 EAPI Elm_Object_Item *
 711 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)
 712 {
 713    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 714    Widget_Data *wd;
 715    Elm_Naviframe_Item *prev_it, *it;
 716
 717    wd = elm_widget_data_get(obj);
 718    if (!wd) return NULL;
 719
 720    //create item
 721    it = elm_widget_item_new(obj, Elm_Naviframe_Item);
 722    if (!it)
 723      {
 724         ERR("Failed to allocate new item! : naviframe=%p", obj);
 725         return NULL;
 726      }
 727
 728    elm_widget_item_text_set_hook_set(it, _text_set_hook);
 729    elm_widget_item_text_get_hook_set(it, _text_get_hook);
 730    elm_widget_item_content_set_hook_set(it, _content_set_hook);
 731    elm_widget_item_content_get_hook_set(it, _content_get_hook);
 732    elm_widget_item_content_unset_hook_set(it, _content_unset_hook);
 733
 734    //item base layout
 735    it->base.view = edje_object_add(evas_object_evas_get(obj));
 736    evas_object_smart_member_add(it->base.view, wd->base);
 737    elm_widget_sub_object_add(obj, it->base.view);
 738    edje_object_signal_callback_add(it->base.view,
 739                                    "elm,action,show,finished",
 740                                    "",
 741                                    _show_finished, it);
 742    edje_object_signal_callback_add(it->base.view,
 743                                    "elm,action,pushed,finished",
 744                                    "",
 745                                    _pushed_finished, it);
 746    edje_object_signal_callback_add(it->base.view,
 747                                    "elm,action,popped,finished",
 748                                    "",
 749                                    _popped_finished, it);
 750    elm_naviframe_item_style_set(ELM_CAST(it), item_style);
 751
 752    //title
 753    edje_object_signal_callback_add(it->base.view,
 754                                    "elm,title,clicked",
 755                                    "elm",
 756                                    _title_clicked, it);
 757
 758    _text_set_hook(ELM_CAST(it), "elm.text.title", title_label);
 759
 760    //title buttons
 761    if ((!prev_btn) && (eina_list_count(wd->stack)))
 762      {
 763         prev_btn = _back_btn_new(obj);
 764         _title_prev_btn_set(it, prev_btn, EINA_TRUE);
 765      }
 766    else
 767      _title_prev_btn_set(it, prev_btn, EINA_FALSE);
 768
 769    _title_next_btn_set(it, next_btn);
 770
 771    _item_content_set(it, content);
 772
 773    _item_sizing_eval(it);
 774    evas_object_show(it->base.view);
 775
 776    prev_it = ELM_CAST(elm_naviframe_top_item_get(obj));
 777    if (prev_it)
 778      {
 779         if (wd->pass_events)
 780           evas_object_pass_events_set(wd->base, EINA_TRUE);
 781         edje_object_signal_emit(prev_it->base.view,
 782                                 "elm,state,pushed",
 783                                 "elm");
 784         edje_object_signal_emit(it->base.view,
 785                                 "elm,state,show",
 786                                 "elm");
 787      }
 788    else
 789      edje_object_signal_emit(it->base.view, "elm,state,visible", "elm");
 790    it->title_visible = EINA_TRUE;
 791    wd->stack = eina_list_append(wd->stack, it);
 792    return ELM_CAST(it);
 793 }
 794
 795 EAPI Evas_Object *
 796 elm_naviframe_item_pop(Evas_Object *obj)
 797 {
 798    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 799    Elm_Naviframe_Item *it, *prev_it;
 800    Widget_Data *wd;
 801    Evas_Object *content = NULL;
 802
 803    wd = elm_widget_data_get(obj);
 804    if (!wd) return NULL;
 805
 806    it = ELM_CAST(elm_naviframe_top_item_get(obj));
 807    if (!it) return NULL;
 808    wd->stack = eina_list_remove(wd->stack, it);
 809
 810    if (wd->preserve)
 811      content = it->content;
 812
 813    prev_it = ELM_CAST(elm_naviframe_top_item_get(obj));
 814    if (prev_it)
 815      {
 816         if (wd->pass_events)
 817           evas_object_pass_events_set(wd->base, EINA_TRUE);
 818         evas_object_show(prev_it->base.view);
 819         evas_object_raise(prev_it->base.view);
 820         edje_object_signal_emit(prev_it->base.view,
 821                                 "elm,state,show",
 822                                 "elm");
 823         edje_object_signal_emit(it->base.view, "elm,state,popped", "elm");
 824      }
 825    else
 826      _item_del(it);
 827
 828    return content;
 829 }
 830
 831 EAPI void
 832 elm_naviframe_content_preserve_on_pop_set(Evas_Object *obj, Eina_Bool preserve)
 833 {
 834    ELM_CHECK_WIDTYPE(obj, widtype);
 835    Widget_Data *wd = elm_widget_data_get(obj);
 836    if (!wd) return;
 837    wd->preserve = !!preserve;
 838 }
 839
 840 EAPI Eina_Bool
 841 elm_naviframe_content_preserve_on_pop_get(const Evas_Object *obj)
 842 {
 843    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 844    Widget_Data *wd = elm_widget_data_get(obj);
 845    if (!wd) return EINA_FALSE;
 846    return wd->preserve;
 847 }
 848
 849 EAPI Elm_Object_Item*
 850 elm_naviframe_top_item_get(const Evas_Object *obj)
 851 {
 852    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 853    Widget_Data *wd = elm_widget_data_get(obj);
 854    if ((!wd) || (!wd->stack)) return NULL;
 855    return eina_list_last(wd->stack)->data;
 856 }
 857
 858 EAPI Elm_Object_Item*
 859 elm_naviframe_bottom_item_get(const Evas_Object *obj)
 860 {
 861    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 862    Widget_Data *wd = elm_widget_data_get(obj);
 863    if (!wd) return NULL;
 864    return NULL;
 865 }
 866
 867 EAPI void
 868 elm_naviframe_item_style_set(Elm_Object_Item *it, const char *item_style)
 869 {
 870    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 871    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 872
 873    char buf[256];
 874
 875    if (!item_style) sprintf(buf, "item/basic");
 876    else
 877      {
 878         if (strlen(item_style) > sizeof(buf))
 879           WRN("too much long style name! : naviframe=%p", navi_it->base.widget);
 880         else
 881           sprintf(buf, "item/%s", item_style);
 882      }
 883    _elm_theme_object_set(navi_it->base.widget,
 884                          navi_it->base.view,
 885                          "naviframe",
 886                          buf,
 887                          elm_widget_style_get(navi_it->base.widget));
 888 }
 889
 890 EAPI const char *
 891 elm_naviframe_item_style_get(const Elm_Object_Item *it)
 892 {
 893    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 894    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 895    return navi_it->style;
 896 }
 897
 898 EAPI void
 899 elm_naviframe_item_title_visible_set(Elm_Object_Item *it, Eina_Bool visible)
 900 {
 901    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 902    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 903
 904    visible = !!visible;
 905    if (navi_it->title_visible == visible) return;
 906
 907    if (visible)
 908      edje_object_signal_emit(navi_it->base.view, "elm,state,title,show", "elm");
 909    else
 910      edje_object_signal_emit(navi_it->base.view, "elm,state,title,hide", "elm");
 911
 912    navi_it->title_visible = visible;
 913 }
 914
 915 EAPI Eina_Bool
 916 elm_naviframe_item_title_visible_get(const Elm_Object_Item *it)
 917 {
 918    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
 919    Elm_Naviframe_Item *navi_it = ELM_CAST(it);
 920    return navi_it->title_visible;
 921 }
 922