src/lib/elm_factory.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 // FIXME: handle if canvas resizes
   5
   6 typedef struct _Widget_Data Widget_Data;
   7
   8 struct _Widget_Data
   9 {
  10    Evas_Object *obj;
  11    Evas_Object *content;
  12    int last_calc_count;
  13    Evas_Coord maxminw, maxminh;
  14    Eina_Bool eval : 1;
  15    Eina_Bool szeval : 1;
  16    Eina_Bool maxmin : 1;
  17 };
  18
  19 static const char *widtype = NULL;
  20 static void _del_hook(Evas_Object *obj);
  21 static Eina_Bool _focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next);
  22 static void _sizing_eval(Evas_Object *obj);
  23 static void _eval(Evas_Object *obj);
  24 static void _changed(Evas_Object *obj);
  25 static void _move(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__);
  26 static void _resize(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__);
  27 static void _child_change(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__);
  28 static void _child_del(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__);
  29 static void _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
  30 static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
  31 <<<<<<< HEAD
  32 =======
  33 static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
  34 >>>>>>> remotes/origin/upstream
  35
  36 static const char SIG_REALIZE[] = "realize";
  37 static const char SIG_UNREALIZE[] = "unrealize";
  38
  39 static const Evas_Smart_Cb_Description _signals[] = {
  40    {SIG_REALIZE, ""},
  41    {SIG_UNREALIZE, ""},
  42    {NULL, NULL}
  43 };
  44
  45 static int fac = 0;
  46
  47 static void
  48 _del_hook(Evas_Object *obj)
  49 {
  50    Widget_Data *wd = elm_widget_data_get(obj);
  51    if (!wd) return;
  52    if (wd->content)
  53      {
  54         Evas_Object *o = wd->content;
  55
  56         evas_object_event_callback_del_full(o,
  57                                             EVAS_CALLBACK_CHANGED_SIZE_HINTS,
  58                                             _child_change, obj);
  59         evas_object_event_callback_del_full(o,
  60                                             EVAS_CALLBACK_DEL,
  61                                             _child_del, obj);
  62         wd->content = NULL;
  63         evas_object_del(o);
  64         fac--;
  65 //        printf("FAC-- = %i\n", fac);
  66      }
  67    free(wd);
  68 }
  69
  70 static Eina_Bool
  71 _focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
  72 {
  73    Widget_Data *wd = elm_widget_data_get(obj);
  74    Evas_Object *cur;
  75
  76    if ((!wd) || (!wd->content)) return EINA_FALSE;
  77    cur = wd->content;
  78    return elm_widget_focus_next_get(cur, dir, next);
  79 }
  80
  81 static void
  82 _sizing_eval(Evas_Object *obj)
  83 {
  84    Widget_Data *wd = elm_widget_data_get(obj);
  85    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
  86
  87    if (!wd) return;
  88    if (!wd->content) return;
  89    evas_object_size_hint_min_get(wd->content, &minw, &minh);
  90    evas_object_size_hint_max_get(wd->content, &maxw, &maxh);
  91    if (wd->maxmin)
  92      {
  93         if (minw > wd->maxminw) wd->maxminw = minw;
  94         if (minh > wd->maxminh) wd->maxminh = minh;
  95         evas_object_size_hint_min_set(obj, wd->maxminw, wd->maxminh);
  96      }
  97    else
  98      {
  99         evas_object_size_hint_min_set(obj, minw, minh);
 100      }
 101    evas_object_size_hint_max_set(obj, maxw, maxh);
 102 //   printf("FAC SZ: %i %i | %i %i\n", minw, minh, maxw, maxh);
 103 }
 104
 105 static void
 106 _eval(Evas_Object *obj)
 107 {
 108    Evas_Coord x, y, w, h, cvx, cvy, cvw, cvh;
 109    Widget_Data *wd = elm_widget_data_get(obj);
 110    if (!wd) return;
 111
 112    evas_event_freeze(evas_object_evas_get(obj));
 113    evas_object_geometry_get(obj, &x, &y, &w, &h);
 114    if (w < 1) w = 1;
 115    if (h < 1) h = 1;
 116    evas_output_viewport_get(evas_object_evas_get(obj),
 117                             &cvx, &cvy, &cvw, &cvh);
 118    if ((cvw < 1) || (cvh < 1)) return;
 119    // need some fuzz value thats beyond the current viewport
 120    // for now just make it the viewport * 3 in size (so 1 vp in each direction)
 121    /*
 122    cvx -= cvw;
 123    cvy -= cvh;
 124    cvw *= 3;
 125    cvh *= 3;
 126     */
 127    if (ELM_RECTS_INTERSECT(x, y, w, h, cvx, cvy, cvw, cvh))
 128      {
 129         if (!wd->content)
 130           {
 131 //             printf("                 + %i %i %ix%i <> %i %i %ix%i\n", x, y, w, h, cvx, cvy, cvw, cvh);
 132              evas_object_smart_callback_call(obj, SIG_REALIZE, NULL);
 133              if (wd->content)
 134                {
 135                   if (evas_object_smart_data_get(wd->content))
 136                      evas_object_smart_calculate(wd->content);
 137                }
 138 <<<<<<< HEAD
 139              //wd->last_calc_count =
 140              //evas_smart_objects_calculate_count_get(evas_object_evas_get(obj));
 141 =======
 142              wd->last_calc_count =
 143                 evas_smart_objects_calculate_count_get(evas_object_evas_get(obj));
 144 >>>>>>> remotes/origin/upstream
 145           }
 146      }
 147    else
 148      {
 149         if (wd->content)
 150           {
 151 <<<<<<< HEAD
 152              //if (wd->last_calc_count !=
 153              //evas_smart_objects_calculate_count_get(evas_object_evas_get(obj)))
 154 =======
 155              if (wd->last_calc_count !=
 156                 evas_smart_objects_calculate_count_get(evas_object_evas_get(obj)))
 157 >>>>>>> remotes/origin/upstream
 158                 evas_object_smart_callback_call(obj, SIG_UNREALIZE, NULL);
 159           }
 160      }
 161    evas_event_thaw(evas_object_evas_get(obj));
 162    evas_event_thaw_eval(evas_object_evas_get(obj));
 163 }
 164
 165 static void
 166 _changed(Evas_Object *obj)
 167 {
 168    Widget_Data *wd = elm_widget_data_get(obj);
 169    if (!wd) return;
 170    if (wd->eval)
 171      {
 172         _eval(obj);
 173         wd->eval = EINA_FALSE;
 174      }
 175    if (wd->szeval)
 176      {
 177         _sizing_eval(obj);
 178         wd->szeval = EINA_FALSE;
 179      }
 180 }
 181
 182 static void
 183 _move(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 184 {
 185    Widget_Data *wd = elm_widget_data_get(obj);
 186    if (!wd) return;
 187    wd->eval = EINA_TRUE;
 188    evas_object_smart_changed(obj);
 189 }
 190
 191 static void
 192 _resize(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 193 {
 194    Widget_Data *wd = elm_widget_data_get(obj);
 195    if (!wd) return;
 196    wd->eval = EINA_TRUE;
 197    evas_object_smart_changed(obj);
 198 }
 199
 200 static void
 201 _child_change(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 202 {
 203    Widget_Data *wd = elm_widget_data_get(data);
 204    if (!wd) return;
 205    wd->eval = EINA_TRUE;
 206    wd->szeval = EINA_TRUE;
 207    evas_object_smart_changed(data);
 208 }
 209
 210 static void
 211 _child_del(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 212 {
 213    Evas_Object *fobj = data;
 214    Widget_Data *wd = elm_widget_data_get(fobj);
 215    if (!wd) return;
 216    if (wd->content != obj) return;
 217    evas_object_event_callback_del_full(wd->content,
 218                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 219                                        _child_change, obj);
 220    evas_object_event_callback_del_full(wd->content,
 221                                        EVAS_CALLBACK_DEL,
 222                                        _child_del, obj);
 223    wd->content = NULL;
 224    fac--;
 225 //   printf("FAC-- = %i\n", fac);
 226 }
 227
 228 <<<<<<< HEAD
 229 =======
 230 static Evas_Object *
 231 _content_unset_hook(Evas_Object *obj, const char *part)
 232 {
 233    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 234    Widget_Data *wd;
 235    Evas_Object *content;
 236
 237    if (part && strcmp(part, "default")) return NULL;
 238    wd = elm_widget_data_get(obj);
 239    if (!wd || !wd->content) return NULL;
 240
 241    content = wd->content;
 242    evas_object_event_callback_del_full(content,
 243                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 244                                        _child_change, obj);
 245    evas_object_event_callback_del_full(content,
 246                                        EVAS_CALLBACK_DEL,
 247                                        _child_del, obj);
 248    wd->content = NULL;
 249    fac--;
 250 //         printf("FAC-- = %i\n", fac);
 251    return content;
 252 }
 253
 254 >>>>>>> remotes/origin/upstream
 255 static void
 256 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 257 {
 258    ELM_CHECK_WIDTYPE(obj, widtype);
 259    Widget_Data *wd;
 260 <<<<<<< HEAD
 261 =======
 262    Evas_Object *prev_content;
 263 >>>>>>> remotes/origin/upstream
 264
 265    if (part && strcmp(part, "default")) return;
 266    wd = elm_widget_data_get(obj);
 267    if (!wd) return;
 268    if (wd->content == content) return;
 269 <<<<<<< HEAD
 270    if (wd->content)
 271       {
 272          Evas_Object *o = wd->content;
 273
 274          evas_object_event_callback_del_full(wd->content,
 275                                              EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 276                                              _child_change, obj);
 277          evas_object_event_callback_del_full(wd->content,
 278                                              EVAS_CALLBACK_DEL,
 279                                              _child_del, obj);
 280          wd->content = NULL;
 281          evas_object_del(o);
 282          fac--;
 283 //         printf("FAC-- = %i\n", fac);
 284       }
 285    wd->content = content;
 286    if (wd->content)
 287      {
 288         fac++;
 289 //        printf("FAC++ = %i\n", fac);
 290         elm_widget_resize_object_set(obj, wd->content);
 291         evas_object_event_callback_add(wd->content, EVAS_CALLBACK_DEL,
 292                                        _child_del, obj);
 293         evas_object_event_callback_add(wd->content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 294                                        _child_change, obj);
 295         wd->eval = EINA_TRUE;
 296         wd->szeval = EINA_TRUE;
 297         evas_object_smart_changed(obj);
 298      }
 299 =======
 300
 301    prev_content = _content_unset_hook(obj, part);
 302    if (prev_content) evas_object_del(prev_content);
 303
 304    wd->content = content;
 305    if (!content) return;
 306
 307    elm_widget_resize_object_set(obj, content);
 308    evas_object_event_callback_add(content, EVAS_CALLBACK_DEL, _child_del, obj);
 309    evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 310                                   _child_change, obj);
 311    wd->eval = EINA_TRUE;
 312    wd->szeval = EINA_TRUE;
 313    evas_object_smart_changed(obj);
 314    fac++;
 315 >>>>>>> remotes/origin/upstream
 316 }
 317
 318 static Evas_Object *
 319 _content_get_hook(const Evas_Object *obj, const char *part)
 320 {
 321    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 322    Widget_Data *wd;
 323    if (part && strcmp(part, "default")) return NULL;
 324    wd = elm_widget_data_get(obj);
 325    if (!wd) return NULL;
 326    return wd->content;
 327 }
 328
 329 EAPI Evas_Object *
 330 elm_factory_add(Evas_Object *parent)
 331 {
 332    Evas_Object *obj;
 333    Evas *e;
 334    Widget_Data *wd;
 335
 336    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 337
 338    ELM_SET_WIDTYPE(widtype, "factory");
 339    elm_widget_type_set(obj, "factory");
 340    elm_widget_sub_object_add(parent, obj);
 341    elm_widget_data_set(obj, wd);
 342    elm_widget_del_hook_set(obj, _del_hook);
 343    elm_widget_focus_next_hook_set(obj, _focus_next_hook);
 344    elm_widget_content_set_hook_set(obj, _content_set_hook);
 345    elm_widget_content_get_hook_set(obj, _content_get_hook);
 346 <<<<<<< HEAD
 347 =======
 348    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 349 >>>>>>> remotes/origin/upstream
 350    elm_widget_can_focus_set(obj, EINA_FALSE);
 351    elm_widget_changed_hook_set(obj, _changed);
 352
 353    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, NULL);
 354    evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, NULL);
 355
 356    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 357
 358    wd->obj = obj;
 359    wd->last_calc_count = -1;
 360    return obj;
 361 }
 362
 363 EAPI void
 364 <<<<<<< HEAD
 365 elm_factory_content_set(Evas_Object *obj, Evas_Object *content)
 366 {
 367    _content_set_hook(obj, NULL, content);
 368 }
 369
 370 EAPI Evas_Object *
 371 elm_factory_content_get(const Evas_Object *obj)
 372 {
 373    return _content_get_hook(obj, NULL);
 374 }
 375
 376 EAPI void
 377 =======
 378 >>>>>>> remotes/origin/upstream
 379 elm_factory_maxmin_mode_set(Evas_Object *obj, Eina_Bool enabled)
 380 {
 381    ELM_CHECK_WIDTYPE(obj, widtype);
 382    Widget_Data *wd = elm_widget_data_get(obj);
 383    if (!wd) return;
 384    wd->maxmin = !!enabled;
 385 }
 386
 387 EAPI Eina_Bool
 388 elm_factory_maxmin_mode_get(const Evas_Object *obj)
 389 {
 390    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 391    Widget_Data *wd = elm_widget_data_get(obj);
 392    if (!wd) return EINA_FALSE;
 393    return wd->maxmin;
 394 }
 395
 396 EAPI void
 397 elm_factory_maxmin_reset_set(Evas_Object *obj)
 398 {
 399    ELM_CHECK_WIDTYPE(obj, widtype);
 400    Widget_Data *wd = elm_widget_data_get(obj);
 401    if (!wd) return;
 402    wd->maxminw = 0;
 403    wd->maxminh = 0;
 404    wd->eval = EINA_TRUE;
 405    wd->szeval = EINA_TRUE;
 406    evas_object_smart_changed(obj);
 407 }