src/lib/elm_panes.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * TODO
   6  * Update the minimun height of the bar in the theme.
   7  * No minimun should be set in the vertical theme
   8  * Add events (move, start ...)
   9  */
  10
  11 typedef struct _Widget_Data Widget_Data;
  12
  13 struct _Widget_Data
  14 {
  15    Evas_Object *panes;
  16
  17    struct
  18      {
  19         Evas_Object *left;
  20         Evas_Object *right;
  21      } contents;
  22
  23    struct
  24      {
  25         int x_diff;
  26         int y_diff;
  27         Eina_Bool move;
  28      } move;
  29
  30    Eina_Bool clicked_double;
  31    Eina_Bool horizontal;
  32    Eina_Bool fixed;
  33 };
  34
  35 static const char *widtype = NULL;
  36 static void _del_hook(Evas_Object *obj);
  37 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  38 static void _theme_hook(Evas_Object *obj);
  39 static void _sizing_eval(Evas_Object *obj);
  40 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  41
  42 static const char SIG_CLICKED[] = "clicked";
  43 static const char SIG_PRESS[] = "press";
  44 static const char SIG_UNPRESS[] = "unpress";
  45 static const char SIG_CLICKED_DOUBLE[] = "clicked,double";
  46
  47 static const Evas_Smart_Cb_Description _signals[] = {
  48    {SIG_CLICKED, ""},
  49    {SIG_PRESS, ""},
  50    {SIG_UNPRESS, ""},
  51    {SIG_CLICKED_DOUBLE, ""},
  52    {NULL, NULL}
  53 };
  54
  55 static void
  56 _del_hook(Evas_Object *obj)
  57 {
  58    Widget_Data *wd = elm_widget_data_get(obj);
  59    if (!wd) return;
  60    free(wd);
  61 }
  62
  63 static void
  64 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  65 {
  66    Widget_Data *wd = elm_widget_data_get(obj);
  67    if (!wd) return;
  68    edje_object_mirrored_set(wd->panes, rtl);
  69 }
  70
  71 static void
  72 _theme_hook(Evas_Object *obj)
  73 {
  74    Widget_Data *wd = elm_widget_data_get(obj);
  75    const char *style = elm_widget_style_get(obj);
  76    double size;
  77
  78    if (!wd) return;
  79    _elm_widget_mirrored_reload(obj);
  80    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  81    size = elm_panes_content_left_size_get(obj);
  82
  83    if (wd->horizontal)
  84      _elm_theme_object_set(obj, wd->panes, "panes", "horizontal", style);
  85    else
  86      _elm_theme_object_set(obj, wd->panes, "panes", "vertical", style);
  87
  88    if (wd->contents.left)
  89      edje_object_part_swallow(wd->panes, "elm.swallow.left", wd->contents.left);
  90    if (wd->contents.right)
  91      edje_object_part_swallow(wd->panes, "elm.swallow.right", wd->contents.right);
  92    if (wd->contents.left && wd->contents.right)
  93      edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
  94    if (wd->fixed)
  95      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
  96
  97    edje_object_scale_set(wd->panes, elm_widget_scale_get(obj) *
  98                          _elm_config->scale);
  99    _sizing_eval(obj);
 100    elm_panes_content_left_size_set(obj, size);
 101 }
 102
 103 static Eina_Bool
 104 _elm_panes_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
 105 {
 106    Widget_Data *wd = elm_widget_data_get(obj);
 107    if (!wd) return EINA_FALSE;
 108
 109    double w, h;
 110    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 111    if (((wd->horizontal) && ( h == 0.0 )) || ((!wd->horizontal) && ( w == 0.0 )))
 112      return elm_widget_focus_next_get(wd->contents.right, dir, next);
 113
 114    Evas_Object *chain[2];
 115
 116    /* Direction */
 117    if (dir == ELM_FOCUS_PREVIOUS)
 118      {
 119         chain[0] = wd->contents.right;
 120         chain[1] = wd->contents.left;
 121      }
 122    else if (dir == ELM_FOCUS_NEXT)
 123      {
 124         chain[0] = wd->contents.left;
 125         chain[1] = wd->contents.right;
 126      }
 127    else
 128      return EINA_FALSE;
 129
 130    unsigned char i = elm_widget_focus_get(chain[1]);
 131
 132    if (elm_widget_focus_next_get(chain[i], dir, next))
 133      return EINA_TRUE;
 134
 135    i = !i;
 136
 137    Evas_Object *to_focus;
 138    if (elm_widget_focus_next_get(chain[i], dir, &to_focus))
 139      {
 140         *next = to_focus;
 141         return !!i;
 142      }
 143
 144    return EINA_FALSE;
 145 }
 146
 147 static void
 148 _sizing_eval(Evas_Object *obj)
 149 {
 150    Widget_Data *wd = elm_widget_data_get(obj);
 151    if (!wd) return;
 152 }
 153
 154 static void
 155 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 156 {
 157    _sizing_eval(data);
 158 }
 159
 160 static void
 161 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 162 {
 163    Widget_Data *wd = elm_widget_data_get(obj);
 164    Evas_Object *sub = event_info;
 165
 166    if (!wd) return;
 167    if (sub == wd->contents.left)
 168      {
 169         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 170                                             _changed_size_hints, obj);
 171         wd->contents.left = NULL;
 172         _sizing_eval(obj);
 173      }
 174    else if (sub == wd->contents.right)
 175      {
 176         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 177                                             _changed_size_hints, obj);
 178         wd->contents.right= NULL;
 179         _sizing_eval(obj);
 180      }
 181 }
 182
 183
 184 static void
 185 _clicked(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 186 {
 187    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 188 }
 189
 190 static void
 191 _clicked_double(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 192 {
 193    Widget_Data *wd = elm_widget_data_get(data);
 194
 195    wd->clicked_double = EINA_TRUE;
 196 }
 197
 198 static void
 199 _press(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 200 {
 201    evas_object_smart_callback_call(data, SIG_PRESS, NULL);
 202 }
 203
 204 static void
 205 _unpress(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 206 {
 207    Widget_Data *wd = elm_widget_data_get(data);
 208    evas_object_smart_callback_call(data, SIG_UNPRESS, NULL);
 209
 210    if (wd->clicked_double)
 211      {
 212         evas_object_smart_callback_call(data, SIG_CLICKED_DOUBLE, NULL);
 213         wd->clicked_double = EINA_FALSE;
 214      }
 215 }
 216
 217 static void
 218 _content_left_set(Evas_Object *obj, Evas_Object *content)
 219 {
 220    Widget_Data *wd = elm_widget_data_get(obj);
 221    if (wd->contents.left)
 222      {
 223         evas_object_del(wd->contents.left);
 224         wd->contents.left = NULL;
 225         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 226      }
 227    if (content)
 228      {
 229         wd->contents.left = content;
 230         elm_widget_sub_object_add(obj, content);
 231         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 232         if (wd->contents.right)
 233           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 234      }
 235 }
 236
 237 static void
 238 _content_right_set(Evas_Object *obj, Evas_Object *content)
 239 {
 240    Widget_Data *wd = elm_widget_data_get(obj);
 241    if (wd->contents.right)
 242      {
 243         evas_object_del(wd->contents.right);
 244         wd->contents.right = NULL;
 245         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 246      }
 247    if (content)
 248      {
 249         wd->contents.right = content;
 250         elm_widget_sub_object_add(obj, content);
 251         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 252         if (wd->contents.left)
 253           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 254      }
 255 }
 256
 257 static Evas_Object *
 258 _content_left_unset(Evas_Object *obj)
 259 {
 260    Widget_Data *wd = elm_widget_data_get(obj);
 261    if (!wd->contents.left) return NULL;
 262    Evas_Object *content = wd->contents.left;
 263
 264    edje_object_part_unswallow(wd->panes, content);
 265    evas_object_hide(wd->contents.left);
 266    elm_widget_sub_object_del(obj, content);
 267    wd->contents.left = NULL;
 268    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 269    return content;
 270 }
 271
 272 static Evas_Object *
 273 _content_right_unset(Evas_Object *obj)
 274 {
 275    Widget_Data *wd = elm_widget_data_get(obj);
 276    if (!wd->contents.right) return NULL;
 277    Evas_Object *content = wd->contents.right;
 278
 279    edje_object_part_unswallow(wd->panes, content);
 280    evas_object_hide(wd->contents.right);
 281    elm_widget_sub_object_del(obj, content);
 282    wd->contents.right = NULL;
 283    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 284    return content;
 285 }
 286
 287 static void
 288 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 289 {
 290    ELM_CHECK_WIDTYPE(obj, widtype);
 291    Widget_Data *wd = elm_widget_data_get(obj);
 292    if (!wd) return;
 293    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 294    if (!part || !strcmp(part, "left"))
 295      _content_left_set(obj, content);
 296    else if(!strcmp(part, "right"))
 297      _content_right_set(obj, content);
 298 }
 299
 300 static Evas_Object *
 301 _content_get_hook(const Evas_Object *obj, const char *part)
 302 {
 303    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 304    Widget_Data *wd = elm_widget_data_get(obj);
 305    if (!wd) return NULL;
 306    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 307    if (!part || !strcmp(part, "left"))
 308      return wd->contents.left;
 309    else if (!strcmp(part, "right"))
 310      return wd->contents.right;
 311    return NULL;
 312 }
 313
 314 static Evas_Object *
 315 _content_unset_hook(Evas_Object *obj, const char *part)
 316 {
 317    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 318    Widget_Data *wd = elm_widget_data_get(obj);
 319    if (!wd) return NULL;
 320    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 321    if (!part || !strcmp(part, "left"))
 322      return _content_left_unset(obj);
 323    else if (!strcmp(part, "right"))
 324      return _content_right_unset(obj);
 325    return NULL;
 326 }
 327
 328 EAPI Evas_Object *
 329 elm_panes_add(Evas_Object *parent)
 330 {
 331    Evas_Object *obj;
 332    Evas *e;
 333    Widget_Data *wd;
 334
 335    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 336
 337    ELM_SET_WIDTYPE(widtype, "panes");
 338    elm_widget_type_set(obj, "panes");
 339    elm_widget_sub_object_add(parent, obj);
 340    elm_widget_data_set(obj, wd);
 341    elm_widget_del_hook_set(obj, _del_hook);
 342    elm_widget_theme_hook_set(obj, _theme_hook);
 343    elm_widget_focus_next_hook_set(obj, _elm_panes_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    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 347    elm_widget_can_focus_set(obj, EINA_FALSE);
 348
 349    wd->panes = edje_object_add(e);
 350    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 351    elm_widget_resize_object_set(obj, wd->panes);
 352    evas_object_show(wd->panes);
 353
 354    elm_panes_content_left_size_set(obj, 0.5);
 355
 356    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 357                                    _clicked, obj);
 358    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 359                                    _clicked_double, obj);
 360    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 361                                    _press, obj);
 362    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 363                                    _unpress, obj);
 364
 365    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 366    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 367                                   _changed_size_hints, obj);
 368
 369    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 370
 371    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 372    _sizing_eval(obj);
 373    return obj;
 374 }
 375
 376 EINA_DEPRECATED EAPI void
 377 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 378 {
 379    _content_set_hook(obj, "left", content);
 380 }
 381
 382 EINA_DEPRECATED EAPI void
 383 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 384 {
 385    _content_set_hook(obj, "right", content);
 386 }
 387
 388 EINA_DEPRECATED EAPI Evas_Object *
 389 elm_panes_content_left_get(const Evas_Object *obj)
 390 {
 391    return _content_get_hook(obj, "left");
 392 }
 393
 394 EINA_DEPRECATED EAPI Evas_Object *
 395 elm_panes_content_right_get(const Evas_Object *obj)
 396 {
 397    return _content_get_hook(obj, "right");
 398 }
 399
 400 EINA_DEPRECATED EAPI Evas_Object *
 401 elm_panes_content_left_unset(Evas_Object *obj)
 402 {
 403    return _content_unset_hook(obj, "left");
 404 }
 405
 406 EINA_DEPRECATED EAPI Evas_Object *
 407 elm_panes_content_right_unset(Evas_Object *obj)
 408 {
 409    return _content_unset_hook(obj, "right");
 410 }
 411
 412 EAPI double
 413 elm_panes_content_left_size_get(const Evas_Object *obj)
 414 {
 415    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 416    Widget_Data *wd = elm_widget_data_get(obj);
 417    double w, h;
 418
 419    if (!wd) return 0;
 420    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 421    if (wd->horizontal) return h;
 422    else return w;
 423 }
 424
 425 EAPI void
 426 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 427 {
 428    ELM_CHECK_WIDTYPE(obj, widtype);
 429    Widget_Data *wd = elm_widget_data_get(obj);
 430    if (!wd) return;
 431    if (size < 0.0) size = 0.0;
 432    else if (size > 1.0) size = 1.0;
 433    if (wd->horizontal)
 434      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 435    else
 436      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 437 }
 438
 439 EAPI double
 440 elm_panes_content_right_size_get(const Evas_Object *obj)
 441 {
 442    return (1.0 - elm_panes_content_left_size_get(obj));
 443 }
 444
 445 EAPI void
 446 elm_panes_content_right_size_set(Evas_Object *obj, double size)
 447 {
 448    elm_panes_content_left_size_set(obj, (1.0 - size));
 449 }
 450
 451 EAPI void
 452 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 453 {
 454    ELM_CHECK_WIDTYPE(obj, widtype);
 455    Widget_Data *wd = elm_widget_data_get(obj);
 456    if (!wd) return;
 457    wd->horizontal = horizontal;
 458    _theme_hook(obj);
 459    elm_panes_content_left_size_set(obj, 0.5);
 460 }
 461
 462 EAPI Eina_Bool
 463 elm_panes_horizontal_get(const Evas_Object *obj)
 464 {
 465    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 466    Widget_Data *wd = elm_widget_data_get(obj);
 467    if (!wd) return EINA_FALSE;
 468    return wd->horizontal;
 469 }
 470
 471 EAPI void
 472 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 473 {
 474    ELM_CHECK_WIDTYPE(obj, widtype);
 475    Widget_Data *wd = elm_widget_data_get(obj);
 476    if (!wd) return;
 477    wd->fixed = !!fixed;
 478    if (wd->fixed == EINA_TRUE)
 479      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 480    else
 481      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 482 }
 483
 484 EAPI Eina_Bool
 485 elm_panes_fixed_get(const Evas_Object *obj)
 486 {
 487    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 488    Widget_Data *wd = elm_widget_data_get(obj);
 489    if (!wd) return EINA_FALSE;
 490    return wd->fixed;
 491 }