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
 108    if (!wd)
 109      return EINA_FALSE;
 110
 111    double w, h;
 112    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 113    if (((wd->horizontal) && ( h == 0.0 )) || ((!wd->horizontal) && ( w == 0.0 )))
 114      return elm_widget_focus_next_get(wd->contents.right, dir, next);
 115
 116    Evas_Object *chain[2];
 117
 118    /* Direction */
 119    if (dir == ELM_FOCUS_PREVIOUS)
 120      {
 121         chain[0] = wd->contents.right;
 122         chain[1] = wd->contents.left;
 123      }
 124    else if (dir == ELM_FOCUS_NEXT)
 125      {
 126         chain[0] = wd->contents.left;
 127         chain[1] = wd->contents.right;
 128      }
 129    else
 130      return EINA_FALSE;
 131
 132    unsigned char i = elm_widget_focus_get(chain[1]);
 133
 134    if (elm_widget_focus_next_get(chain[i], dir, next))
 135      return EINA_TRUE;
 136
 137    i = !i;
 138
 139    Evas_Object *to_focus;
 140    if (elm_widget_focus_next_get(chain[i], dir, &to_focus))
 141      {
 142         *next = to_focus;
 143         return !!i;
 144      }
 145
 146    return EINA_FALSE;
 147 }
 148
 149 static void
 150 _sizing_eval(Evas_Object *obj)
 151 {
 152    Widget_Data *wd = elm_widget_data_get(obj);
 153    if (!wd) return;
 154 }
 155
 156 static void
 157 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 158 {
 159    _sizing_eval(data);
 160 }
 161
 162 static void
 163 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 164 {
 165    Widget_Data *wd = elm_widget_data_get(obj);
 166    Evas_Object *sub = event_info;
 167
 168    if (!wd) return;
 169    if (sub == wd->contents.left)
 170      {
 171         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 172                                             _changed_size_hints, obj);
 173         wd->contents.left = NULL;
 174         _sizing_eval(obj);
 175      }
 176    else if (sub == wd->contents.right)
 177      {
 178         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 179                                             _changed_size_hints, obj);
 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)
 223      {
 224         evas_object_del(wd->contents.left);
 225         wd->contents.left = NULL;
 226         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 227      }
 228    if (content)
 229      {
 230         wd->contents.left = content;
 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)
 243      {
 244         evas_object_del(wd->contents.right);
 245         wd->contents.right = NULL;
 246         edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 247      }
 248    if (content)
 249      {
 250         wd->contents.right = content;
 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_part_unswallow(wd->panes, content);
 266    evas_object_hide(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    elm_widget_sub_object_del(obj, content);
 279    edje_object_part_unswallow(wd->panes, content);
 280    evas_object_hide(content);
 281    wd->contents.right = NULL;
 282    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 283    return content;
 284 }
 285
 286 static void
 287 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 288 {
 289    ELM_CHECK_WIDTYPE(obj, widtype);
 290    Widget_Data *wd = elm_widget_data_get(obj);
 291    if (!wd) return;
 292    if (!part || !strcmp(part, "right"))
 293      _content_right_set(obj, content);
 294    else if(!strcmp(part, "left"))
 295      _content_left_set(obj, content);
 296 }
 297
 298 static Evas_Object *
 299 _content_get_hook(const Evas_Object *obj, const char *part)
 300 {
 301    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 302    Widget_Data *wd = elm_widget_data_get(obj);
 303    if (!wd) return NULL;
 304    if (!part || !strcmp(part, "right"))
 305      return wd->contents.right;
 306    else if (!strcmp(part, "left"))
 307      return wd->contents.left;
 308    return NULL;
 309 }
 310
 311 static Evas_Object *
 312 _content_unset_hook(Evas_Object *obj, const char *part)
 313 {
 314    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 315    Widget_Data *wd = elm_widget_data_get(obj);
 316    if (!wd) return NULL;
 317    if (!part || !strcmp(part, "right"))
 318      return _content_right_unset(obj);
 319    else if (!strcmp(part, "left"))
 320      return _content_left_unset(obj);
 321    return NULL;
 322 }
 323
 324 EAPI Evas_Object *
 325 elm_panes_add(Evas_Object *parent)
 326 {
 327    Evas_Object *obj;
 328    Evas *e;
 329    Widget_Data *wd;
 330
 331    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 332
 333    ELM_SET_WIDTYPE(widtype, "panes");
 334    elm_widget_type_set(obj, "panes");
 335    elm_widget_can_focus_set(obj, EINA_FALSE);
 336    elm_widget_sub_object_add(parent, obj);
 337    elm_widget_data_set(obj, wd);
 338    elm_widget_del_hook_set(obj, _del_hook);
 339    elm_widget_theme_hook_set(obj, _theme_hook);
 340    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 341    elm_widget_content_set_hook_set(obj, _content_set_hook);
 342    elm_widget_content_get_hook_set(obj, _content_get_hook);
 343    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 344    elm_widget_can_focus_set(obj, EINA_FALSE);
 345
 346    wd->panes = edje_object_add(e);
 347    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 348    elm_widget_resize_object_set(obj, wd->panes);
 349    evas_object_show(wd->panes);
 350
 351    elm_panes_content_left_size_set(obj, 0.5);
 352
 353    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 354                                    _clicked, obj);
 355    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 356                                    _clicked_double, obj);
 357    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 358                                    _press, obj);
 359    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 360                                    _unpress, obj);
 361
 362    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 363    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 364                                   _changed_size_hints, obj);
 365
 366    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 367
 368    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 369    _sizing_eval(obj);
 370    return obj;
 371 }
 372
 373 EAPI void
 374 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 375 {
 376    _content_set_hook(obj, "left", content);
 377 }
 378
 379 EAPI void
 380 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 381 {
 382    _content_set_hook(obj, "right", content);
 383 }
 384
 385 EAPI Evas_Object *
 386 elm_panes_content_left_get(const Evas_Object *obj)
 387 {
 388    return _content_get_hook(obj, "left");
 389 }
 390
 391 EAPI Evas_Object *
 392 elm_panes_content_right_get(const Evas_Object *obj)
 393 {
 394    return _content_get_hook(obj, "right");
 395 }
 396
 397 EAPI Evas_Object *
 398 elm_panes_content_left_unset(Evas_Object *obj)
 399 {
 400    return _content_unset_hook(obj, "left");
 401 }
 402
 403 EAPI Evas_Object *
 404 elm_panes_content_right_unset(Evas_Object *obj)
 405 {
 406    return _content_unset_hook(obj, "right");
 407 }
 408
 409 EAPI double
 410 elm_panes_content_left_size_get(const Evas_Object *obj)
 411 {
 412    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 413    Widget_Data *wd = elm_widget_data_get(obj);
 414    double w, h;
 415
 416    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 417    if (wd->horizontal) return h;
 418    else return w;
 419 }
 420
 421 EAPI void
 422 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 423 {
 424    ELM_CHECK_WIDTYPE(obj, widtype);
 425    Widget_Data *wd = elm_widget_data_get(obj);
 426
 427    if (size < 0.0) size = 0.0;
 428    else if (size > 1.0) size = 1.0;
 429    if (wd->horizontal)
 430      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 431    else
 432      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 433 }
 434
 435 EAPI void
 436 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 437 {
 438    ELM_CHECK_WIDTYPE(obj, widtype);
 439    Widget_Data *wd = elm_widget_data_get(obj);
 440
 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    return wd->horizontal;
 452 }
 453
 454 EAPI void
 455 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 456 {
 457    ELM_CHECK_WIDTYPE(obj, widtype);
 458    Widget_Data *wd = elm_widget_data_get(obj);
 459    wd->fixed = fixed;
 460    if (wd->fixed == EINA_TRUE)
 461      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 462    else
 463      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 464 }
 465
 466 EAPI Eina_Bool
 467 elm_panes_fixed_get(const Evas_Object *obj)
 468 {
 469    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 470    Widget_Data *wd = elm_widget_data_get(obj);
 471    return wd->fixed;
 472 }