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      }
 227    if (content)
 228      {
 229         wd->contents.left = content;
 230         elm_widget_sub_object_add(obj, content);
 231         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 232      }
 233 }
 234
 235 static void
 236 _content_right_set(Evas_Object *obj, Evas_Object *content)
 237 {
 238    Widget_Data *wd = elm_widget_data_get(obj);
 239    if (wd->contents.right)
 240      {
 241         evas_object_del(wd->contents.right);
 242         wd->contents.right = NULL;
 243      }
 244    if (content)
 245      {
 246         wd->contents.right = content;
 247         elm_widget_sub_object_add(obj, content);
 248         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 249      }
 250 }
 251
 252 static Evas_Object *
 253 _content_left_unset(Evas_Object *obj)
 254 {
 255    Widget_Data *wd = elm_widget_data_get(obj);
 256    if (!wd->contents.left) return NULL;
 257    Evas_Object *content = wd->contents.left;
 258    elm_widget_sub_object_del(obj, content);
 259    edje_object_part_unswallow(wd->panes, content);
 260    wd->contents.left = NULL;
 261    return content;
 262 }
 263
 264 static Evas_Object *
 265 _content_right_unset(Evas_Object *obj)
 266 {
 267    Widget_Data *wd = elm_widget_data_get(obj);
 268    if (!wd->contents.right) return NULL;
 269    Evas_Object *content = wd->contents.right;
 270    elm_widget_sub_object_del(obj, content);
 271    edje_object_part_unswallow(wd->panes, content);
 272    wd->contents.right = NULL;
 273    return content;
 274 }
 275
 276 static void
 277 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 278 {
 279    ELM_CHECK_WIDTYPE(obj, widtype);
 280    Widget_Data *wd;
 281
 282    if (!part) return;
 283    wd = elm_widget_data_get(obj);
 284    if (!wd) return;
 285    if (!strcmp(part, "right"))
 286      _content_right_set(obj, content);
 287    else if(!strcmp(part, "left"))
 288      _content_left_set(obj, content);
 289 }
 290
 291 static Evas_Object *
 292 _content_get_hook(const Evas_Object *obj, const char *part)
 293 {
 294    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 295    Widget_Data *wd;
 296
 297    if (!part) return NULL;
 298    wd = elm_widget_data_get(obj);
 299    if (!wd) return NULL;
 300    if (!strcmp(part, "right"))
 301      return wd->contents.left;
 302    else if (!strcmp(part, "left"))
 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;
 312
 313    if (!part) return NULL;
 314    wd = elm_widget_data_get(obj);
 315    if (!wd) return NULL;
 316    if (!strcmp(part, "right"))
 317      _content_right_unset(obj);
 318    else if (!strcmp(part, "left"))
 319      _content_left_unset(obj);
 320    return NULL;
 321 }
 322
 323 EAPI Evas_Object *
 324 elm_panes_add(Evas_Object *parent)
 325 {
 326    Evas_Object *obj;
 327    Evas *e;
 328    Widget_Data *wd;
 329
 330    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 331
 332    ELM_SET_WIDTYPE(widtype, "panes");
 333    elm_widget_type_set(obj, "panes");
 334    elm_widget_can_focus_set(obj, EINA_FALSE);
 335    elm_widget_sub_object_add(parent, obj);
 336    elm_widget_data_set(obj, wd);
 337    elm_widget_del_hook_set(obj, _del_hook);
 338    elm_widget_theme_hook_set(obj, _theme_hook);
 339    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 340    elm_widget_content_set_hook_set(obj, _content_set_hook);
 341    elm_widget_content_get_hook_set(obj, _content_get_hook);
 342    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 343    elm_widget_can_focus_set(obj, EINA_FALSE);
 344
 345    wd->panes = edje_object_add(e);
 346    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 347    elm_widget_resize_object_set(obj, wd->panes);
 348    evas_object_show(wd->panes);
 349
 350    elm_panes_content_left_size_set(obj, 0.5);
 351
 352    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 353                                    _clicked, obj);
 354    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 355                                    _clicked_double, obj);
 356    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 357                                    _press, obj);
 358    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 359                                    _unpress, obj);
 360
 361    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 362    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 363                                   _changed_size_hints, obj);
 364
 365    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 366
 367    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 368    _sizing_eval(obj);
 369    return obj;
 370 }
 371
 372 EAPI void
 373 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 374 {
 375    _content_set_hook(obj, "left", content);
 376 }
 377
 378 EAPI void
 379 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 380 {
 381    _content_set_hook(obj, "right", content);
 382 }
 383
 384 EAPI Evas_Object *
 385 elm_panes_content_left_get(const Evas_Object *obj)
 386 {
 387    return _content_get_hook(obj, "left");
 388 }
 389
 390 EAPI Evas_Object *
 391 elm_panes_content_right_get(const Evas_Object *obj)
 392 {
 393    return _content_get_hook(obj, "right");
 394 }
 395
 396 EAPI Evas_Object *
 397 elm_panes_content_left_unset(Evas_Object *obj)
 398 {
 399    return _content_unset_hook(obj, "left");
 400 }
 401
 402 EAPI Evas_Object *
 403 elm_panes_content_right_unset(Evas_Object *obj)
 404 {
 405    return _content_unset_hook(obj, "right");
 406 }
 407
 408 EAPI double
 409 elm_panes_content_left_size_get(const Evas_Object *obj)
 410 {
 411    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 412    Widget_Data *wd = elm_widget_data_get(obj);
 413    double w, h;
 414
 415    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 416    if (wd->horizontal) return h;
 417    else return w;
 418 }
 419
 420 EAPI void
 421 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 422 {
 423    ELM_CHECK_WIDTYPE(obj, widtype);
 424    Widget_Data *wd = elm_widget_data_get(obj);
 425
 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    wd->horizontal = horizontal;
 441    _theme_hook(obj);
 442    elm_panes_content_left_size_set(obj, 0.5);
 443 }
 444
 445 EAPI Eina_Bool
 446 elm_panes_horizontal_get(const Evas_Object *obj)
 447 {
 448    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 449    Widget_Data *wd = elm_widget_data_get(obj);
 450    return wd->horizontal;
 451 }
 452
 453 EAPI void
 454 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 455 {
 456    ELM_CHECK_WIDTYPE(obj, widtype);
 457    Widget_Data *wd = elm_widget_data_get(obj);
 458    wd->fixed = fixed;
 459    if (wd->fixed == EINA_TRUE)
 460      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 461    else
 462      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 463 }
 464
 465 EAPI Eina_Bool
 466 elm_panes_fixed_get(const Evas_Object *obj)
 467 {
 468    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 469    Widget_Data *wd = elm_widget_data_get(obj);
 470    return wd->fixed;
 471 }