src/lib/elm_photo.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "els_icon.h"
   4 #include "els_scroller.h"
   5
   6 typedef struct _Widget_Data Widget_Data;
   7
   8 struct _Widget_Data
   9 {
  10    Evas_Object *frm;
  11    Evas_Object *img;
  12    int size;
  13    Eina_Bool fill;
  14    Ecore_Timer *longtimer;
  15
  16 #ifdef HAVE_ELEMENTARY_ETHUMB
  17    struct {
  18       int id;
  19
  20       struct {
  21          const char *path;
  22          const char *key;
  23       } file, thumb;
  24
  25       Ethumb_Exists *exists;
  26
  27       Ecore_Event_Handler *eeh;
  28
  29       Ethumb_Thumb_Format format;
  30
  31       Eina_Bool retry : 1;
  32    } thumb;
  33 #endif
  34
  35 };
  36
  37 #ifdef HAVE_ELEMENTARY_ETHUMB
  38 static Eina_List *_elm_icon_retry = NULL;
  39 static int _icon_pending_request = 0;
  40
  41 static void _icon_thumb_exists(void *data, Ethumb_Client *client __UNUSED__, Ethumb_Exists *thread, Eina_Bool exists);
  42 static void _icon_thumb_stop(Widget_Data *wd, void *ethumbd);
  43 #endif
  44
  45 static const char *widtype = NULL;
  46 static void _del_hook(Evas_Object *obj);
  47 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  48 static void _theme_hook(Evas_Object *obj);
  49 static void _sizing_eval(Evas_Object *obj);
  50 static void _mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info);
  51 static void _mouse_move(void *data, Evas *e, Evas_Object *obj, void *event_info);
  52
  53 static const char SIG_CLICKED[] = "clicked";
  54 static const char SIG_DRAG_START[] = "drag,start";
  55 static const char SIG_DRAG_END[] = "drag,end";
  56
  57 static const Evas_Smart_Cb_Description _signals[] = {
  58    {SIG_CLICKED, ""},
  59    {SIG_DRAG_START, ""},
  60    {SIG_DRAG_END, ""},
  61    {NULL, NULL}
  62 };
  63
  64
  65 static void
  66 _del_hook(Evas_Object *obj)
  67 {
  68    Widget_Data *wd = elm_widget_data_get(obj);
  69 #ifdef HAVE_ELEMENTARY_ETHUMB
  70    Ethumb_Client *ethumbd;
  71 #endif
  72    if (!wd) return;
  73
  74 #ifdef HAVE_ELEMENTARY_ETHUMB
  75    ethumbd = elm_thumb_ethumb_client_get();
  76    _icon_thumb_stop(wd, ethumbd);
  77
  78    eina_stringshare_del(wd->thumb.file.path);
  79    eina_stringshare_del(wd->thumb.file.key);
  80    eina_stringshare_del(wd->thumb.thumb.path);
  81    eina_stringshare_del(wd->thumb.thumb.key);
  82
  83    if (wd->thumb.eeh)
  84      ecore_event_handler_del(wd->thumb.eeh);
  85 #endif
  86
  87    free(wd);
  88 }
  89
  90 static void
  91 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  92 {
  93    Widget_Data *wd = elm_widget_data_get(obj);
  94    if (!wd) return;
  95    edje_object_mirrored_set(wd->frm, rtl);
  96 }
  97
  98 static void
  99 _theme_hook(Evas_Object *obj)
 100 {
 101    Widget_Data *wd = elm_widget_data_get(obj);
 102    if (!wd) return;
 103    _elm_widget_mirrored_reload(obj);
 104    _mirrored_set(wd->frm, elm_widget_mirrored_get(obj));
 105    _elm_theme_object_set(obj, wd->frm, "photo", "base",
 106                          elm_widget_style_get(obj));
 107    edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->img);
 108    edje_object_scale_set(wd->frm, elm_widget_scale_get(obj) *
 109                          _elm_config->scale);
 110    _sizing_eval(obj);
 111 }
 112
 113 static void
 114 _sizing_eval(Evas_Object *obj)
 115 {
 116    Widget_Data *wd = elm_widget_data_get(obj);
 117    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 118
 119    if (!wd) return;
 120    if (wd->size > 0)
 121      {
 122         double scale = 0.0;
 123
 124         scale = (wd->size * elm_widget_scale_get(obj) * _elm_config->scale);
 125         evas_object_size_hint_min_set(wd->img, scale, scale);
 126         edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->img);
 127         elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 128         edje_object_size_min_restricted_calc(wd->frm, &minw, &minh, minw, minh);
 129         elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 130         maxw = minw;
 131         maxh = minh;
 132         evas_object_size_hint_min_set(obj, minw, minh);
 133         evas_object_size_hint_max_set(obj, maxw, maxh);
 134      }
 135 }
 136
 137 static void
 138 _icon_move_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 139 {
 140    Evas_Coord w, h;
 141    Widget_Data *wd = elm_widget_data_get(data);
 142
 143    if (!wd) return;
 144    if (wd->fill)
 145      {
 146         Edje_Message_Int_Set *msg;
 147         Evas_Object *icon = _els_smart_icon_object_get(wd->img);
 148
 149         evas_object_geometry_get(icon, NULL, NULL, &w, &h);
 150         msg = alloca(sizeof(Edje_Message_Int_Set) + (sizeof(int)));
 151         msg->count=2;
 152         msg->val[0] = (int)w;
 153         msg->val[1] = (int)h;
 154
 155         edje_object_message_send(wd->frm, EDJE_MESSAGE_INT_SET, 0, msg);
 156      }
 157
 158 #ifdef HAVE_ELEMENTARY_ETHUMB
 159    if (wd->thumb.file.path)
 160      elm_photo_thumb_set(data, wd->thumb.file.path, wd->thumb.file.key);
 161 #endif
 162 }
 163
 164
 165 static void
 166 _drag_done_cb(void *unused __UNUSED__, Evas_Object *obj)
 167 {
 168    elm_object_scroll_freeze_pop(obj);
 169    evas_object_smart_callback_call(obj, SIG_DRAG_END, NULL);
 170 }
 171
 172 static Eina_Bool
 173 _longpress(void *objv)
 174 {
 175    Widget_Data *wd = elm_widget_data_get(objv);
 176    Evas_Object *tmp;
 177    const char *file;
 178
 179    DBG("Long press: start drag!");
 180    wd->longtimer = NULL; /* clear: must return NULL now */
 181    evas_object_event_callback_del(objv, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move);
 182
 183    tmp = _els_smart_icon_object_get(wd->img);
 184    file = NULL;
 185    evas_object_image_file_get(tmp,&file,NULL);
 186    if (file)
 187      {
 188         char buf[4096 + 7];
 189         /* FIXME: Deal with relative paths; use PATH_MAX */
 190         snprintf(buf, sizeof(buf), "file://%s", file);
 191         if (elm_drag_start(objv, ELM_SEL_FORMAT_IMAGE,
 192                            buf, _drag_done_cb, NULL))
 193           {
 194              elm_object_scroll_freeze_push(objv);
 195              evas_object_smart_callback_call(objv, SIG_DRAG_START, NULL);
 196           }
 197      }
 198
 199    return 0; /* Don't call again */
 200 }
 201
 202 static void
 203 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event)
 204 {
 205    Widget_Data *wd = elm_widget_data_get(data);
 206    Evas_Event_Mouse_Move *move = event;
 207
 208    /* Sanity */
 209    if (!wd->longtimer)
 210      {
 211         evas_object_event_callback_del(obj, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move);
 212         return;
 213      }
 214
 215    /* if the event is held, stop waiting */
 216    if (move->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
 217      {
 218         /* Moved too far: No longpress for you! */
 219         ecore_timer_del(wd->longtimer);
 220         wd->longtimer = NULL;
 221         evas_object_event_callback_del(obj, EVAS_CALLBACK_MOUSE_MOVE,
 222                                        _mouse_move);
 223      }
 224 }
 225
 226 static void
 227 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 228 {
 229    Widget_Data *wd = elm_widget_data_get(data);
 230
 231    if (wd->longtimer) ecore_timer_del(wd->longtimer);
 232
 233    /* FIXME: Hard coded timeout */
 234    wd->longtimer = ecore_timer_add(0.7, _longpress, data);
 235    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_MOVE,
 236                                   _mouse_move, data);
 237 }
 238
 239 static void
 240 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 241 {
 242    Widget_Data *wd = elm_widget_data_get(data);
 243
 244    if ((wd) && (wd->longtimer))
 245      {
 246         ecore_timer_del(wd->longtimer);
 247         wd->longtimer = NULL;
 248      }
 249
 250    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 251 }
 252
 253 static inline int
 254 _icon_size_min_get(Evas_Object *icon)
 255 {
 256    int size;
 257    _els_smart_icon_size_get(icon, &size, NULL);
 258    return (size < 32) ? 32 : size;
 259 }
 260
 261
 262 #ifdef HAVE_ELEMENTARY_ETHUMB
 263 static void
 264 _icon_thumb_stop(Widget_Data *wd, void *ethumbd)
 265 {
 266    if (wd->thumb.id >= 0)
 267      {
 268         ethumb_client_generate_cancel(ethumbd, wd->thumb.id, NULL, NULL, NULL);
 269         wd->thumb.id = -1;
 270         _icon_pending_request--;
 271      }
 272
 273    if (wd->thumb.exists)
 274      {
 275         ethumb_client_thumb_exists_cancel(wd->thumb.exists);
 276         wd->thumb.exists = NULL;
 277         _icon_pending_request--;
 278      }
 279
 280    if (wd->thumb.retry)
 281      {
 282         _elm_icon_retry = eina_list_remove(_elm_icon_retry, wd);
 283         wd->thumb.retry = EINA_FALSE;
 284      }
 285 }
 286
 287 static Eina_Bool
 288 _icon_thumb_display(Widget_Data *wd)
 289 {
 290    Eina_Bool ret = EINA_FALSE;
 291
 292    if (wd->thumb.format == ETHUMB_THUMB_EET)
 293      {
 294         static const char *extensions[] = {
 295           ".avi", ".mp4", ".ogv", ".mov", ".mpg", ".wmv", NULL
 296         };
 297         const char **ext, *ptr;
 298         int prefix_size;
 299         Eina_Bool video = EINA_FALSE;
 300
 301         prefix_size = eina_stringshare_strlen(wd->thumb.file.path) - 4;
 302         if (prefix_size >= 0)
 303           {
 304              ptr = wd->thumb.file.path + prefix_size;
 305              for (ext = extensions; *ext; ++ext)
 306                if (!strcasecmp(ptr, *ext))
 307                  {
 308                     video = EINA_TRUE;
 309                     break;
 310                  }
 311           }
 312
 313         if (video)
 314           ret = _els_smart_icon_file_edje_set(wd->img, wd->thumb.thumb.path, wd->thumb.thumb.key);
 315      }
 316
 317    if (!ret)
 318      ret = _els_smart_icon_file_key_set(wd->img, wd->thumb.thumb.path, wd->thumb.thumb.key);
 319
 320    return ret;
 321 }
 322
 323 static Eina_Bool
 324 _icon_thumb_retry(Widget_Data *wd)
 325 {
 326    return _icon_thumb_display(wd);
 327 }
 328
 329 static void
 330 _icon_thumb_cleanup(Ethumb_Client *ethumbd)
 331 {
 332    Eina_List *l, *ll;
 333    Widget_Data *wd;
 334
 335    EINA_LIST_FOREACH_SAFE(_elm_icon_retry, l, ll, wd)
 336      if (_icon_thumb_retry(wd))
 337        {
 338           _elm_icon_retry = eina_list_remove_list(_elm_icon_retry, l);
 339           wd->thumb.retry = EINA_FALSE;
 340        }
 341
 342    if (_icon_pending_request == 0)
 343      EINA_LIST_FREE(_elm_icon_retry, wd)
 344        _icon_thumb_stop(wd, ethumbd);
 345 }
 346
 347 static void
 348 _icon_thumb_finish(Widget_Data *wd, Ethumb_Client *ethumbd)
 349 {
 350    const char *file = NULL, *group = NULL;
 351    Eina_Bool ret;
 352
 353    _els_smart_icon_file_get(wd->img, &file, &group);
 354    file = eina_stringshare_ref(file);
 355    group = eina_stringshare_ref(group);
 356
 357    ret = _icon_thumb_display(wd);
 358
 359    if (!ret && file)
 360      {
 361         const char *p;
 362
 363         if (!wd->thumb.retry)
 364           {
 365              _elm_icon_retry = eina_list_append(_elm_icon_retry, wd);
 366              wd->thumb.retry = EINA_TRUE;
 367           }
 368
 369         /* Back to previous image */
 370         if (((p = strrchr(file, '.'))) && (!strcasecmp(p, ".edj")))
 371           _els_smart_icon_file_edje_set(wd->img, file, group);
 372         else
 373           _els_smart_icon_file_key_set(wd->img, file, group);
 374      }
 375
 376    _icon_thumb_cleanup(ethumbd);
 377
 378    eina_stringshare_del(file);
 379    eina_stringshare_del(group);
 380 }
 381
 382 static void
 383 _icon_thumb_cb(void *data,
 384                Ethumb_Client *ethumbd,
 385                int id,
 386                const char *file __UNUSED__,
 387                const char *key __UNUSED__,
 388                const char *thumb_path,
 389                const char *thumb_key,
 390                Eina_Bool success)
 391 {
 392    Widget_Data *wd = data;
 393
 394    EINA_SAFETY_ON_FALSE_RETURN(wd->thumb.id == id);
 395    wd->thumb.id = -1;
 396
 397    _icon_pending_request--;
 398
 399    if (success)
 400      {
 401         eina_stringshare_replace(&wd->thumb.thumb.path, thumb_path);
 402         eina_stringshare_replace(&wd->thumb.thumb.key, thumb_key);
 403         wd->thumb.format = ethumb_client_format_get(ethumbd);
 404
 405         _icon_thumb_finish(wd, ethumbd);
 406      }
 407    else
 408      {
 409         ERR("could not generate thumbnail for %s (key: %s)", file, key);
 410         _icon_thumb_cleanup(ethumbd);
 411      }
 412 }
 413
 414 static void
 415 _icon_thumb_exists(void *data, Ethumb_Client *client __UNUSED__, Ethumb_Exists *thread, Eina_Bool exists)
 416 {
 417    Widget_Data *wd = data;
 418    Ethumb_Client *ethumbd;
 419
 420    if (ethumb_client_thumb_exists_check(thread))
 421      return ;
 422
 423    wd->thumb.exists = NULL;
 424
 425    ethumbd = elm_thumb_ethumb_client_get();
 426
 427    if (exists)
 428      {
 429         const char *thumb_path, *thumb_key;
 430
 431         _icon_pending_request--;
 432         ethumb_client_thumb_path_get(ethumbd, &thumb_path, &thumb_key);
 433         eina_stringshare_replace(&wd->thumb.thumb.path, thumb_path);
 434         eina_stringshare_replace(&wd->thumb.thumb.key, thumb_key);
 435         wd->thumb.format = ethumb_client_format_get(ethumbd);
 436
 437         _icon_thumb_finish(wd, ethumbd);
 438      }
 439    else if ((wd->thumb.id = ethumb_client_generate(ethumbd, _icon_thumb_cb, wd, NULL)) == -1)
 440      {
 441         ERR("Generate was unable to start !");
 442         /* Failed to generate thumbnail */
 443         _icon_pending_request--;
 444      }
 445 }
 446
 447 static void
 448 _icon_thumb_apply(Widget_Data *wd)
 449 {
 450    Ethumb_Client *ethumbd;
 451
 452    ethumbd = elm_thumb_ethumb_client_get();
 453
 454    _icon_thumb_stop(wd, ethumbd);
 455
 456    if (!wd->thumb.file.path) return ;
 457
 458    _icon_pending_request++;
 459    if (!ethumb_client_file_set(ethumbd, wd->thumb.file.path, wd->thumb.file.key)) return ;
 460    ethumb_client_size_set(ethumbd, _icon_size_min_get(wd->img), _icon_size_min_get(wd->img));
 461    wd->thumb.exists = ethumb_client_thumb_exists(ethumbd, _icon_thumb_exists, wd);
 462 }
 463
 464 static Eina_Bool
 465 _icon_thumb_apply_cb(void *data, int type __UNUSED__, void *ev __UNUSED__)
 466 {
 467    Widget_Data *wd = data;
 468
 469    _icon_thumb_apply(wd);
 470    return ECORE_CALLBACK_RENEW;
 471 }
 472 #endif
 473
 474 EAPI Evas_Object *
 475 elm_photo_add(Evas_Object *parent)
 476 {
 477    Evas_Object *obj;
 478    Evas *e;
 479    Widget_Data *wd;
 480    Evas_Object *icon;
 481
 482    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 483
 484    ELM_SET_WIDTYPE(widtype, "photo");
 485    elm_widget_type_set(obj, "photo");
 486    elm_widget_sub_object_add(parent, obj);
 487    elm_widget_data_set(obj, wd);
 488    elm_widget_del_hook_set(obj, _del_hook);
 489    elm_widget_theme_hook_set(obj, _theme_hook);
 490    elm_widget_can_focus_set(obj, EINA_FALSE);
 491
 492    wd->frm = edje_object_add(e);
 493    _elm_theme_object_set(obj, wd->frm, "photo", "base", "default");
 494    elm_widget_resize_object_set(obj, wd->frm);
 495
 496    wd->img = _els_smart_icon_add(e);
 497    _els_smart_icon_scale_up_set(wd->img, 1);
 498    _els_smart_icon_scale_down_set(wd->img, 1);
 499    _els_smart_icon_smooth_scale_set(wd->img, 1);
 500    _els_smart_icon_fill_inside_set(wd->img, 0);
 501    _els_smart_icon_scale_size_set(wd->img, 0);
 502    wd->fill = EINA_FALSE;
 503    _els_smart_icon_scale_set(wd->img,
 504                              elm_widget_scale_get(obj) * _elm_config->scale);
 505    evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_UP,
 506                                   _mouse_up, obj);
 507    evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_DOWN,
 508                                   _mouse_down, obj);
 509    evas_object_repeat_events_set(wd->img, 1);
 510    edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->img);
 511    evas_object_show(wd->img);
 512    elm_widget_sub_object_add(obj, wd->img);
 513
 514    wd->longtimer = NULL;
 515
 516    icon = _els_smart_icon_object_get(wd->img);
 517    evas_object_event_callback_add(icon, EVAS_CALLBACK_MOVE,
 518                                   _icon_move_resize, obj);
 519    evas_object_event_callback_add(icon, EVAS_CALLBACK_RESIZE,
 520                                   _icon_move_resize, obj);
 521
 522    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 523
 524 #ifdef HAVE_ELEMENTARY_ETHUMB
 525    wd->thumb.id = -1;
 526 #endif
 527
 528    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 529    _sizing_eval(obj);
 530    return obj;
 531 }
 532
 533 EAPI Eina_Bool
 534 elm_photo_file_set(Evas_Object *obj, const char *file)
 535 {
 536    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 537    Widget_Data *wd = elm_widget_data_get(obj);
 538
 539    if (!wd) return EINA_FALSE;
 540    if (!_els_smart_icon_file_key_set(wd->img, file, NULL))
 541      return EINA_FALSE;
 542
 543    _sizing_eval(obj);
 544    return EINA_TRUE;
 545 }
 546
 547 EAPI void
 548 elm_photo_size_set(Evas_Object *obj, int size)
 549 {
 550    ELM_CHECK_WIDTYPE(obj, widtype);
 551    Widget_Data *wd = elm_widget_data_get(obj);
 552
 553    if (!wd) return;
 554    wd->size = (size > 0) ? size : 0;
 555
 556    _els_smart_icon_scale_size_set(wd->img, wd->size);
 557
 558    _sizing_eval(obj);
 559 }
 560
 561 EAPI void
 562 elm_photo_fill_inside_set(Evas_Object *obj, Eina_Bool fill)
 563 {
 564    ELM_CHECK_WIDTYPE(obj, widtype);
 565    Widget_Data *wd = elm_widget_data_get(obj);
 566
 567    if (!wd) return;
 568    _els_smart_icon_fill_inside_set(wd->img, fill);
 569    wd->fill = fill;
 570    _sizing_eval(obj);
 571 }
 572
 573 EAPI void
 574 elm_photo_editable_set(Evas_Object *obj, Eina_Bool set)
 575 {
 576    ELM_CHECK_WIDTYPE(obj, widtype);
 577    Widget_Data *wd = elm_widget_data_get(obj);
 578
 579    if (!wd) return;;
 580    _els_smart_icon_edit_set(wd->img, set, obj);
 581 }
 582
 583 EAPI void
 584 elm_photo_thumb_set(const Evas_Object *obj, const char *file, const char *group)
 585 {
 586    ELM_CHECK_WIDTYPE(obj, widtype);
 587    Widget_Data *wd = elm_widget_data_get(obj);
 588    if (!wd) return;
 589
 590 #ifdef HAVE_ELEMENTARY_ETHUMB
 591    eina_stringshare_replace(&wd->thumb.file.path, file);
 592    eina_stringshare_replace(&wd->thumb.file.key, group);
 593
 594    if (elm_thumb_ethumb_client_connected())
 595      {
 596         _icon_thumb_apply(wd);
 597         return ;
 598      }
 599
 600    if (!wd->thumb.eeh)
 601      {
 602         wd->thumb.eeh = ecore_event_handler_add(ELM_ECORE_EVENT_ETHUMB_CONNECT, _icon_thumb_apply_cb, wd);
 603      }
 604 #else
 605    (void) obj;
 606    (void) file;
 607    (void) group;
 608 #endif
 609 }
 610
 611 EAPI void
 612 elm_photo_aspect_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 613 {
 614    ELM_CHECK_WIDTYPE(obj, widtype);
 615    Widget_Data *wd = elm_widget_data_get(obj);
 616    if (!wd) return;
 617    return _els_smart_icon_aspect_ratio_retained_set(wd->img, fixed);
 618 }
 619
 620 EAPI Eina_Bool
 621 elm_photo_aspect_fixed_get(const Evas_Object *obj)
 622 {
 623    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 624    Widget_Data *wd = elm_widget_data_get(obj);
 625    if (!wd) return EINA_FALSE;
 626    return _els_smart_icon_aspect_ratio_retained_get(wd->img);
 627 }
 628
 629
 630
 631 /* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-3f0^-2{2(0W1st0 :*/