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->fixed)
  93      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
  94
  95    edje_object_scale_set(wd->panes, elm_widget_scale_get(obj) *
  96                          _elm_config->scale);
  97    _sizing_eval(obj);
  98    elm_panes_content_left_size_set(obj, size);
  99 }
 100
 101 static Eina_Bool
 102 _elm_panes_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
 103 {
 104    Widget_Data *wd = elm_widget_data_get(obj);
 105    if (!wd) return EINA_FALSE;
 106
 107    double w, h;
 108    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 109    if (((wd->horizontal) && ( h == 0.0 )) || ((!wd->horizontal) && ( w == 0.0 )))
 110      return elm_widget_focus_next_get(wd->contents.right, dir, next);
 111
 112    Evas_Object *chain[2];
 113
 114    /* Direction */
 115    if (dir == ELM_FOCUS_PREVIOUS)
 116      {
 117         chain[0] = wd->contents.right;
 118         chain[1] = wd->contents.left;
 119      }
 120    else if (dir == ELM_FOCUS_NEXT)
 121      {
 122         chain[0] = wd->contents.left;
 123         chain[1] = wd->contents.right;
 124      }
 125    else
 126      return EINA_FALSE;
 127
 128    unsigned char i = elm_widget_focus_get(chain[1]);
 129
 130    if (elm_widget_focus_next_get(chain[i], dir, next))
 131      return EINA_TRUE;
 132
 133    i = !i;
 134
 135    Evas_Object *to_focus;
 136    if (elm_widget_focus_next_get(chain[i], dir, &to_focus))
 137      {
 138         *next = to_focus;
 139         return !!i;
 140      }
 141
 142    return EINA_FALSE;
 143 }
 144
 145 static void
 146 _sizing_eval(Evas_Object *obj)
 147 {
 148    Widget_Data *wd = elm_widget_data_get(obj);
 149    if (!wd) return;
 150 }
 151
 152 static void
 153 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 154 {
 155    _sizing_eval(data);
 156 }
 157
 158 static void
 159 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 160 {
 161    Widget_Data *wd = elm_widget_data_get(obj);
 162    Evas_Object *sub = event_info;
 163
 164    if (!wd) return;
 165    if (sub == wd->contents.left)
 166      {
 167         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 168                                             _changed_size_hints, obj);
 169         wd->contents.left = NULL;
 170         _sizing_eval(obj);
 171      }
 172    else if (sub == wd->contents.right)
 173      {
 174         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 175                                             _changed_size_hints, obj);
 176         wd->contents.right= NULL;
 177         _sizing_eval(obj);
 178      }
 179 }
 180
 181
 182 static void
 183 _clicked(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 184 {
 185    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 186 }
 187
 188 static void
 189 _clicked_double(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 190 {
 191    Widget_Data *wd = elm_widget_data_get(data);
 192
 193    wd->clicked_double = EINA_TRUE;
 194 }
 195
 196 static void
 197 _press(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 198 {
 199    evas_object_smart_callback_call(data, SIG_PRESS, NULL);
 200 }
 201
 202 static void
 203 _unpress(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 204 {
 205    Widget_Data *wd = elm_widget_data_get(data);
 206    evas_object_smart_callback_call(data, SIG_UNPRESS, NULL);
 207
 208    if (wd->clicked_double)
 209      {
 210         evas_object_smart_callback_call(data, SIG_CLICKED_DOUBLE, NULL);
 211         wd->clicked_double = EINA_FALSE;
 212      }
 213 }
 214
 215 static void
 216 _content_left_set(Evas_Object *obj, Evas_Object *content)
 217 {
 218    Widget_Data *wd = elm_widget_data_get(obj);
 219    if (wd->contents.left)
 220      {
 221         evas_object_del(wd->contents.left);
 222         wd->contents.left = NULL;
 223      }
 224    if (content)
 225      {
 226         wd->contents.left = content;
 227         elm_widget_sub_object_add(obj, content);
 228         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 229      }
 230 }
 231
 232 static void
 233 _content_right_set(Evas_Object *obj, Evas_Object *content)
 234 {
 235    Widget_Data *wd = elm_widget_data_get(obj);
 236    if (wd->contents.right)
 237      {
 238         evas_object_del(wd->contents.right);
 239         wd->contents.right = NULL;
 240      }
 241    if (content)
 242      {
 243         wd->contents.right = content;
 244         elm_widget_sub_object_add(obj, content);
 245         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 246      }
 247 }
 248
 249 static Evas_Object *
 250 _content_left_unset(Evas_Object *obj)
 251 {
 252    Widget_Data *wd = elm_widget_data_get(obj);
 253    if (!wd->contents.left) return NULL;
 254    Evas_Object *content = wd->contents.left;
 255    elm_widget_sub_object_del(obj, content);
 256    edje_object_part_unswallow(wd->panes, content);
 257    wd->contents.left = NULL;
 258    return content;
 259 }
 260
 261 static Evas_Object *
 262 _content_right_unset(Evas_Object *obj)
 263 {
 264    Widget_Data *wd = elm_widget_data_get(obj);
 265    if (!wd->contents.right) return NULL;
 266    Evas_Object *content = wd->contents.right;
 267    elm_widget_sub_object_del(obj, content);
 268    edje_object_part_unswallow(wd->panes, content);
 269    wd->contents.right = NULL;
 270    return content;
 271 }
 272
 273 static void
 274 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 275 {
 276    ELM_CHECK_WIDTYPE(obj, widtype);
 277    Widget_Data *wd = elm_widget_data_get(obj);
 278    if (!wd) return;
 279
 280    if ((!part) || (!strcmp(part, "elm.swallow.right")))
 281      _content_right_set(obj, content);
 282    else if(!strcmp(part, "elm.swallow.left"))
 283      _content_left_set(obj, content);
 284 }
 285
 286 static Evas_Object *
 287 _content_get_hook(const Evas_Object *obj, const char *part)
 288 {
 289    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 290    Widget_Data *wd = elm_widget_data_get(obj);
 291    if (!wd) return NULL;
 292    if ((!part) || (!strcmp(part, "elm.swallow.right")))
 293      return wd->contents.left;
 294    else if (!strcmp(part, "elm.swallow.left"))
 295      return wd->contents.right;
 296    return NULL;
 297 }
 298
 299 static Evas_Object *
 300 _content_unset_hook(Evas_Object *obj, const char *part)
 301 {
 302    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 303    Widget_Data *wd = elm_widget_data_get(obj);
 304    if (!wd) return NULL;
 305
 306    if ((!part) || (!strcmp(part, "elm.swallow.right")))
 307      _content_right_unset(obj);
 308    else if (!strcmp(part, "elm.swallow.left"))
 309      _content_left_unset(obj);
 310
 311    return NULL;
 312 }
 313
 314 EAPI Evas_Object *
 315 elm_panes_add(Evas_Object *parent)
 316 {
 317    Evas_Object *obj;
 318    Evas *e;
 319    Widget_Data *wd;
 320
 321    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 322
 323    ELM_SET_WIDTYPE(widtype, "panes");
 324    elm_widget_type_set(obj, "panes");
 325    elm_widget_sub_object_add(parent, obj);
 326    elm_widget_data_set(obj, wd);
 327    elm_widget_del_hook_set(obj, _del_hook);
 328    elm_widget_theme_hook_set(obj, _theme_hook);
 329    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 330    elm_widget_content_set_hook_set(obj, _content_set_hook);
 331    elm_widget_content_get_hook_set(obj, _content_get_hook);
 332    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 333    elm_widget_can_focus_set(obj, EINA_FALSE);
 334
 335    wd->panes = edje_object_add(e);
 336    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 337    elm_widget_resize_object_set(obj, wd->panes);
 338    evas_object_show(wd->panes);
 339
 340    elm_panes_content_left_size_set(obj, 0.5);
 341
 342    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 343                                    _clicked, obj);
 344    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 345                                    _clicked_double, obj);
 346    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 347                                    _press, obj);
 348    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 349                                    _unpress, obj);
 350
 351    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 352    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 353                                   _changed_size_hints, obj);
 354
 355    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 356
 357    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 358    _sizing_eval(obj);
 359    return obj;
 360 }
 361
 362 EAPI void
 363 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 364 {
 365    _content_set_hook(obj, "elm.swallow.left", content);
 366 }
 367
 368 EAPI void
 369 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 370 {
 371    _content_set_hook(obj, NULL, content);
 372 }
 373
 374 EAPI Evas_Object *
 375 elm_panes_content_left_get(const Evas_Object *obj)
 376 {
 377    return _content_get_hook(obj, "elm.swallow.left");
 378 }
 379
 380 EAPI Evas_Object *
 381 elm_panes_content_right_get(const Evas_Object *obj)
 382 {
 383    return _content_get_hook(obj, NULL);
 384 }
 385
 386 EAPI Evas_Object *
 387 elm_panes_content_left_unset(Evas_Object *obj)
 388 {
 389    return _content_unset_hook(obj, "elm.swallow.left");
 390 }
 391
 392 EAPI Evas_Object *
 393 elm_panes_content_right_unset(Evas_Object *obj)
 394 {
 395    return _content_unset_hook(obj, "elm.swallow.right");
 396 }
 397
 398 EAPI double
 399 elm_panes_content_left_size_get(const Evas_Object *obj)
 400 {
 401    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 402    Widget_Data *wd = elm_widget_data_get(obj);
 403    double w, h;
 404
 405    if (!wd) return 0;
 406    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 407    if (wd->horizontal) return h;
 408    else return w;
 409 }
 410
 411 EAPI void
 412 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 413 {
 414    ELM_CHECK_WIDTYPE(obj, widtype);
 415    Widget_Data *wd = elm_widget_data_get(obj);
 416    if (!wd) return;
 417    if (size < 0.0) size = 0.0;
 418    else if (size > 1.0) size = 1.0;
 419    if (wd->horizontal)
 420      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 421    else
 422      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 423 }
 424
 425 EAPI void
 426 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 427 {
 428    ELM_CHECK_WIDTYPE(obj, widtype);
 429    Widget_Data *wd = elm_widget_data_get(obj);
 430    if (!wd) return;
 431    wd->horizontal = horizontal;
 432    _theme_hook(obj);
 433    elm_panes_content_left_size_set(obj, 0.5);
 434 }
 435
 436 EAPI Eina_Bool
 437 elm_panes_horizontal_get(const Evas_Object *obj)
 438 {
 439    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 440    Widget_Data *wd = elm_widget_data_get(obj);
 441    if (!wd) return EINA_FALSE;
 442    return wd->horizontal;
 443 }
 444
 445 EAPI void
 446 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 447 {
 448    ELM_CHECK_WIDTYPE(obj, widtype);
 449    Widget_Data *wd = elm_widget_data_get(obj);
 450    if (!wd) return;
 451    wd->fixed = !!fixed;
 452    if (wd->fixed == EINA_TRUE)
 453      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 454    else
 455      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 456 }
 457
 458 EAPI Eina_Bool
 459 elm_panes_fixed_get(const Evas_Object *obj)
 460 {
 461    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 462    Widget_Data *wd = elm_widget_data_get(obj);
 463    if (!wd) return EINA_FALSE;
 464    return wd->fixed;
 465 }