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 EAPI Evas_Object *
 219 elm_panes_add(Evas_Object *parent)
 220 {
 221    Evas_Object *obj;
 222    Evas *e;
 223    Widget_Data *wd;
 224
 225    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 226
 227    ELM_SET_WIDTYPE(widtype, "panes");
 228    elm_widget_type_set(obj, "panes");
 229    elm_widget_can_focus_set(obj, EINA_FALSE);
 230    elm_widget_sub_object_add(parent, obj);
 231    elm_widget_data_set(obj, wd);
 232    elm_widget_del_hook_set(obj, _del_hook);
 233    elm_widget_theme_hook_set(obj, _theme_hook);
 234    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 235
 236    wd->panes = edje_object_add(e);
 237    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 238    elm_widget_resize_object_set(obj, wd->panes);
 239    evas_object_show(wd->panes);
 240
 241    elm_panes_content_left_size_set(obj, 0.5);
 242
 243    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 244                                    _clicked, obj);
 245    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 246                                    _clicked_double, obj);
 247    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 248                                    _press, obj);
 249    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 250                                    _unpress, obj);
 251
 252    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 253    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 254                                   _changed_size_hints, obj);
 255
 256    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 257
 258    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 259    _sizing_eval(obj);
 260    return obj;
 261 }
 262
 263 EAPI void
 264 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 265 {
 266    ELM_CHECK_WIDTYPE(obj, widtype);
 267    Widget_Data *wd = elm_widget_data_get(obj);
 268    if (wd->contents.left)
 269      {
 270         evas_object_del(wd->contents.left);
 271         wd->contents.left = NULL;
 272      }
 273    if (content)
 274      {
 275         wd->contents.left = content;
 276         elm_widget_sub_object_add(obj, content);
 277         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 278         if (wd->contents.right)
 279           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 280      }
 281    else
 282       edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 283 }
 284
 285 EAPI void
 286 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 287 {
 288    ELM_CHECK_WIDTYPE(obj, widtype);
 289    Widget_Data *wd = elm_widget_data_get(obj);
 290    if (wd->contents.right)
 291      {
 292         evas_object_del(wd->contents.right);
 293         wd->contents.right = NULL;
 294      }
 295    if (content)
 296      {
 297         wd->contents.right = content;
 298         elm_widget_sub_object_add(obj, content);
 299         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 300         if (wd->contents.left)
 301           edje_object_signal_emit(wd->panes, "elm.panes.pair", "elm");
 302      }
 303    else
 304      edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 305 }
 306
 307 EAPI Evas_Object *
 308 elm_panes_content_left_get(const Evas_Object *obj)
 309 {
 310    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 311    Widget_Data *wd = elm_widget_data_get(obj);
 312    return wd->contents.left;
 313 }
 314
 315 EAPI Evas_Object *
 316 elm_panes_content_right_get(const Evas_Object *obj)
 317 {
 318    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 319    Widget_Data *wd = elm_widget_data_get(obj);
 320    return wd->contents.right;
 321 }
 322
 323 EAPI Evas_Object *
 324 elm_panes_content_left_unset(Evas_Object *obj)
 325 {
 326    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 327    Widget_Data *wd = elm_widget_data_get(obj);
 328    if (!wd) return NULL;
 329    if (!wd->contents.left) return NULL;
 330    Evas_Object *content = wd->contents.left;
 331    elm_widget_sub_object_del(obj, content);
 332    edje_object_part_unswallow(wd->panes, content);
 333    evas_object_hide(content);
 334    wd->contents.left = NULL;
 335    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 336    return content;
 337 }
 338
 339 EAPI Evas_Object *
 340 elm_panes_content_right_unset(Evas_Object *obj)
 341 {
 342    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 343    Widget_Data *wd = elm_widget_data_get(obj);
 344    if (!wd) return NULL;
 345    if (!wd->contents.right) return NULL;
 346    Evas_Object *content = wd->contents.right;
 347    elm_widget_sub_object_del(obj, content);
 348    edje_object_part_unswallow(wd->panes, content);
 349    evas_object_hide(content);
 350    wd->contents.right = NULL;
 351    edje_object_signal_emit(wd->panes, "elm.panes.unpair", "elm");
 352    return content;
 353 }
 354
 355 EAPI double
 356 elm_panes_content_left_size_get(const Evas_Object *obj)
 357 {
 358    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 359    Widget_Data *wd = elm_widget_data_get(obj);
 360    double w, h;
 361
 362    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 363    if (wd->horizontal) return h;
 364    else return w;
 365 }
 366
 367 EAPI void
 368 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 369 {
 370    ELM_CHECK_WIDTYPE(obj, widtype);
 371    Widget_Data *wd = elm_widget_data_get(obj);
 372
 373    if (size < 0.0) size = 0.0;
 374    else if (size > 1.0) size = 1.0;
 375    if (wd->horizontal)
 376      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 377    else
 378      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 379 }
 380
 381 EAPI void
 382 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 383 {
 384    ELM_CHECK_WIDTYPE(obj, widtype);
 385    Widget_Data *wd = elm_widget_data_get(obj);
 386
 387    wd->horizontal = horizontal;
 388    _theme_hook(obj);
 389    elm_panes_content_left_size_set(obj, 0.5);
 390 }
 391
 392 EAPI Eina_Bool
 393 elm_panes_horizontal_get(const Evas_Object *obj)
 394 {
 395    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 396    Widget_Data *wd = elm_widget_data_get(obj);
 397    return wd->horizontal;
 398 }
 399
 400 EAPI void
 401 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 402 {
 403    ELM_CHECK_WIDTYPE(obj, widtype);
 404    Widget_Data *wd = elm_widget_data_get(obj);
 405    wd->fixed = fixed;
 406    if (wd->fixed == EINA_TRUE)
 407      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 408    else
 409      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 410 }
 411
 412 EAPI Eina_Bool
 413 elm_panes_fixed_get(const Evas_Object *obj)
 414 {
 415    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 416    Widget_Data *wd = elm_widget_data_get(obj);
 417    return wd->fixed;
 418 }