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