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