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         edje_object_part_unswallow(wd->panes, sub);
 172         wd->contents.left = NULL;
 173         _sizing_eval(obj);
 174      }
 175    else if (sub == wd->contents.right)
 176      {
 177         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 178                                             _changed_size_hints, obj);
 179         edje_object_part_unswallow(wd->panes, sub);
 180         wd->contents.right= NULL;
 181         _sizing_eval(obj);
 182      }
 183 }
 184
 185 static void
 186 _clicked(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 187 {
 188    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 189 }
 190
 191 static void
 192 _clicked_double(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 193 {
 194    Widget_Data *wd = elm_widget_data_get(data);
 195
 196    wd->clicked_double = EINA_TRUE;
 197 }
 198
 199 static void
 200 _press(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 201 {
 202    evas_object_smart_callback_call(data, SIG_PRESS, NULL);
 203 }
 204
 205 static void
 206 _unpress(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 207 {
 208    Widget_Data *wd = elm_widget_data_get(data);
 209    evas_object_smart_callback_call(data, SIG_UNPRESS, NULL);
 210
 211    if (wd->clicked_double)
 212      {
 213         evas_object_smart_callback_call(data, SIG_CLICKED_DOUBLE, NULL);
 214         wd->clicked_double = EINA_FALSE;
 215      }
 216 }
 217
 218 static void
 219 _content_left_set(Evas_Object *obj, Evas_Object *content)
 220 {
 221    Widget_Data *wd = elm_widget_data_get(obj);
 222    if (wd->contents.left == content) return;
 223    if (wd->contents.left)
 224      {
 225         evas_object_del(wd->contents.left);
 226         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 227      }
 228    wd->contents.left = content;
 229    if (content)
 230      {
 231         elm_widget_sub_object_add(obj, content);
 232         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 233         if (wd->contents.right)
 234           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 235      }
 236 }
 237
 238 static void
 239 _content_right_set(Evas_Object *obj, Evas_Object *content)
 240 {
 241    Widget_Data *wd = elm_widget_data_get(obj);
 242    if (wd->contents.right == content) return;
 243    if (wd->contents.right)
 244      {
 245         evas_object_del(wd->contents.right);
 246         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 247      }
 248    wd->contents.right = content;
 249    if (content)
 250      {
 251         elm_widget_sub_object_add(obj, content);
 252         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 253         if (wd->contents.left)
 254           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 255      }
 256 }
 257
 258 static Evas_Object *
 259 _content_left_unset(Evas_Object *obj)
 260 {
 261    Widget_Data *wd = elm_widget_data_get(obj);
 262    if (!wd->contents.left) return NULL;
 263    Evas_Object *content = wd->contents.left;
 264    elm_widget_sub_object_del(obj, content);
 265    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 266    return content;
 267 }
 268
 269 static Evas_Object *
 270 _content_right_unset(Evas_Object *obj)
 271 {
 272    Widget_Data *wd = elm_widget_data_get(obj);
 273    if (!wd->contents.right) return NULL;
 274    Evas_Object *content = wd->contents.right;
 275    elm_widget_sub_object_del(obj, content);
 276    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 277    return content;
 278 }
 279
 280 static void
 281 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 282 {
 283    ELM_CHECK_WIDTYPE(obj, widtype);
 284    Widget_Data *wd = elm_widget_data_get(obj);
 285    if (!wd) return;
 286    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 287    if (!part || !strcmp(part, "left"))
 288      _content_left_set(obj, content);
 289    else if (!strcmp(part, "right"))
 290      _content_right_set(obj, content);
 291 }
 292
 293 static Evas_Object *
 294 _content_get_hook(const Evas_Object *obj, const char *part)
 295 {
 296    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 297    Widget_Data *wd = elm_widget_data_get(obj);
 298    if (!wd) return NULL;
 299    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 300    if (!part || !strcmp(part, "left"))
 301      return wd->contents.left;
 302    else if (!strcmp(part, "right"))
 303      return wd->contents.right;
 304    return NULL;
 305 }
 306
 307 static Evas_Object *
 308 _content_unset_hook(Evas_Object *obj, const char *part)
 309 {
 310    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 311    Widget_Data *wd = elm_widget_data_get(obj);
 312    if (!wd) return NULL;
 313    if (part && (!strncmp(part, "elm.swallow.", 12))) part += 12;
 314    if (!part || !strcmp(part, "left"))
 315      return _content_left_unset(obj);
 316    else if (!strcmp(part, "right"))
 317      return _content_right_unset(obj);
 318    return NULL;
 319 }
 320
 321 EAPI Evas_Object *
 322 elm_panes_add(Evas_Object *parent)
 323 {
 324    Evas_Object *obj;
 325    Evas *e;
 326    Widget_Data *wd;
 327
 328    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 329
 330    ELM_SET_WIDTYPE(widtype, "panes");
 331    elm_widget_type_set(obj, "panes");
 332    elm_widget_sub_object_add(parent, obj);
 333    elm_widget_data_set(obj, wd);
 334    elm_widget_del_hook_set(obj, _del_hook);
 335    elm_widget_theme_hook_set(obj, _theme_hook);
 336    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 337    elm_widget_content_set_hook_set(obj, _content_set_hook);
 338    elm_widget_content_get_hook_set(obj, _content_get_hook);
 339    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 340    elm_widget_can_focus_set(obj, EINA_FALSE);
 341
 342    wd->panes = edje_object_add(e);
 343    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 344    elm_widget_resize_object_set(obj, wd->panes);
 345    evas_object_show(wd->panes);
 346
 347    elm_panes_content_left_size_set(obj, 0.5);
 348
 349    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 350                                    _clicked, obj);
 351    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 352                                    _clicked_double, obj);
 353    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 354                                    _press, obj);
 355    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 356                                    _unpress, obj);
 357
 358    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 359    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 360                                   _changed_size_hints, obj);
 361
 362    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 363
 364    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 365    _sizing_eval(obj);
 366    return obj;
 367 }
 368
 369 EINA_DEPRECATED EAPI void
 370 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 371 {
 372    _content_set_hook(obj, "left", content);
 373 }
 374
 375 EINA_DEPRECATED EAPI void
 376 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 377 {
 378    _content_set_hook(obj, "right", content);
 379 }
 380
 381 EINA_DEPRECATED EAPI Evas_Object *
 382 elm_panes_content_left_get(const Evas_Object *obj)
 383 {
 384    return _content_get_hook(obj, "left");
 385 }
 386
 387 EINA_DEPRECATED EAPI Evas_Object *
 388 elm_panes_content_right_get(const Evas_Object *obj)
 389 {
 390    return _content_get_hook(obj, "right");
 391 }
 392
 393 EINA_DEPRECATED EAPI Evas_Object *
 394 elm_panes_content_left_unset(Evas_Object *obj)
 395 {
 396    return _content_unset_hook(obj, "left");
 397 }
 398
 399 EINA_DEPRECATED EAPI Evas_Object *
 400 elm_panes_content_right_unset(Evas_Object *obj)
 401 {
 402    return _content_unset_hook(obj, "right");
 403 }
 404
 405 EAPI double
 406 elm_panes_content_left_size_get(const Evas_Object *obj)
 407 {
 408    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 409    Widget_Data *wd = elm_widget_data_get(obj);
 410    double w, h;
 411
 412    if (!wd) return 0;
 413    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 414    if (wd->horizontal) return h;
 415    else return w;
 416 }
 417
 418 EAPI void
 419 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 420 {
 421    ELM_CHECK_WIDTYPE(obj, widtype);
 422    Widget_Data *wd = elm_widget_data_get(obj);
 423    if (!wd) return;
 424    if (size < 0.0) size = 0.0;
 425    else if (size > 1.0) size = 1.0;
 426    if (wd->horizontal)
 427      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 428    else
 429      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 430 }
 431
 432 EAPI double
 433 elm_panes_content_right_size_get(const Evas_Object *obj)
 434 {
 435    return (1.0 - elm_panes_content_left_size_get(obj));
 436 }
 437
 438 EAPI void
 439 elm_panes_content_right_size_set(Evas_Object *obj, double size)
 440 {
 441    elm_panes_content_left_size_set(obj, (1.0 - size));
 442 }
 443
 444 EAPI void
 445 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 446 {
 447    ELM_CHECK_WIDTYPE(obj, widtype);
 448    Widget_Data *wd = elm_widget_data_get(obj);
 449    if (!wd) return;
 450    wd->horizontal = horizontal;
 451    _theme_hook(obj);
 452    elm_panes_content_left_size_set(obj, 0.5);
 453 }
 454
 455 EAPI Eina_Bool
 456 elm_panes_horizontal_get(const Evas_Object *obj)
 457 {
 458    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 459    Widget_Data *wd = elm_widget_data_get(obj);
 460    if (!wd) return EINA_FALSE;
 461    return wd->horizontal;
 462 }
 463
 464 EAPI void
 465 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 466 {
 467    ELM_CHECK_WIDTYPE(obj, widtype);
 468    Widget_Data *wd = elm_widget_data_get(obj);
 469    if (!wd) return;
 470    wd->fixed = !!fixed;
 471    if (wd->fixed == EINA_TRUE)
 472      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 473    else
 474      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 475 }
 476
 477 EAPI Eina_Bool
 478 elm_panes_fixed_get(const Evas_Object *obj)
 479 {
 480    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 481    Widget_Data *wd = elm_widget_data_get(obj);
 482    if (!wd) return EINA_FALSE;
 483    return wd->fixed;
 484 }