unknonw direction actually should just be handled in default - skip
[platform/upstream/elementary.git] / src / lib / elc_ctxpopup.c
1 #include <Elementary.h>
2 #include "elm_priv.h"
3 #include "elm_widget_ctxpopup.h"
4
5 EAPI const char ELM_CTXPOPUP_SMART_NAME[] = "elm_ctxpopup";
6
7 static const char SIG_DISMISSED[] = "dismissed";
8 static const Evas_Smart_Cb_Description _smart_callbacks[] = {
9    {SIG_DISMISSED, ""},
10    {NULL, NULL}
11 };
12
13 EVAS_SMART_SUBCLASS_NEW
14   (ELM_CTXPOPUP_SMART_NAME, _elm_ctxpopup, Elm_Ctxpopup_Smart_Class,
15    Elm_Layout_Smart_Class, elm_layout_smart_class_get, _smart_callbacks);
16 static Eina_Bool
17 _elm_ctxpopup_smart_focus_next(const Evas_Object *obj,
18                                Elm_Focus_Direction dir,
19                                Evas_Object **next)
20 {
21    ELM_CTXPOPUP_DATA_GET(obj, sd);
22
23    if (!sd)
24      return EINA_FALSE;
25
26    if (!elm_widget_focus_next_get(sd->box, dir, next))
27      {
28         elm_widget_focused_object_clear(sd->box);
29         elm_widget_focus_next_get(sd->box, dir, next);
30      }
31
32    return EINA_TRUE;
33 }
34
35 static Eina_Bool
36 _elm_ctxpopup_smart_event(Evas_Object *obj,
37                           Evas_Object *src __UNUSED__,
38                           Evas_Callback_Type type,
39                           void *event_info)
40 {
41    Evas_Event_Key_Down *ev = event_info;
42
43    ELM_CTXPOPUP_DATA_GET(obj, sd);
44
45    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
46    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
47    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
48
49    if (!strcmp(ev->keyname, "Tab"))
50      {
51         if (evas_key_modifier_is_set(ev->modifiers, "Shift"))
52           elm_widget_focus_cycle(sd->box, ELM_FOCUS_PREVIOUS);
53         else
54           elm_widget_focus_cycle(sd->box, ELM_FOCUS_NEXT);
55         return EINA_TRUE;
56      }
57
58    if (strcmp(ev->keyname, "Escape")) return EINA_FALSE;
59
60    evas_object_hide(obj);
61    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
62    return EINA_TRUE;
63 }
64
65 static void
66 _x_pos_adjust(Evas_Coord_Point *pos,
67               Evas_Coord_Point *base_size,
68               Evas_Coord_Rectangle *hover_area)
69 {
70    pos->x -= (base_size->x / 2);
71
72    if (pos->x < hover_area->x)
73      pos->x = hover_area->x;
74    else if ((pos->x + base_size->x) > (hover_area->x + hover_area->w))
75      pos->x = (hover_area->x + hover_area->w) - base_size->x;
76
77    if (base_size->x > hover_area->w)
78      base_size->x -= (base_size->x - hover_area->w);
79
80    if (pos->x < hover_area->x)
81      pos->x = hover_area->x;
82 }
83
84 static void
85 _y_pos_adjust(Evas_Coord_Point *pos,
86               Evas_Coord_Point *base_size,
87               Evas_Coord_Rectangle *hover_area)
88 {
89    pos->y -= (base_size->y / 2);
90
91    if (pos->y < hover_area->y)
92      pos->y = hover_area->y;
93    else if ((pos->y + base_size->y) > (hover_area->y + hover_area->h))
94      pos->y = hover_area->y + hover_area->h - base_size->y;
95
96    if (base_size->y > hover_area->h)
97      base_size->y -= (base_size->y - hover_area->h);
98
99    if (pos->y < hover_area->y)
100      pos->y = hover_area->y;
101 }
102
103 static Elm_Ctxpopup_Direction
104 _base_geometry_calc(Evas_Object *obj,
105                     Evas_Coord_Rectangle *rect)
106 {
107    Elm_Ctxpopup_Direction dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
108    Evas_Coord_Rectangle hover_area;
109    Evas_Coord_Point pos = {0, 0};
110    Evas_Coord_Point arrow_size;
111    Evas_Coord_Point base_size;
112    Evas_Coord_Point max_size;
113    Evas_Coord_Point min_size;
114    Evas_Coord_Point temp;
115    int idx;
116
117    ELM_CTXPOPUP_DATA_GET(obj, sd);
118
119    if (!rect) return ELM_CTXPOPUP_DIRECTION_DOWN;
120
121    edje_object_part_geometry_get
122      (sd->arrow, "ctxpopup_arrow", NULL, NULL, &arrow_size.x, &arrow_size.y);
123    evas_object_resize(sd->arrow, arrow_size.x, arrow_size.y);
124
125    //Initialize Area Rectangle.
126    evas_object_geometry_get
127      (sd->parent, &hover_area.x, &hover_area.y, &hover_area.w,
128      &hover_area.h);
129
130    evas_object_geometry_get(obj, &pos.x, &pos.y, NULL, NULL);
131
132    //recalc the edje
133    edje_object_size_min_calc
134      (ELM_WIDGET_DATA(sd)->resize_obj, &base_size.x, &base_size.y);
135    evas_object_smart_calculate(ELM_WIDGET_DATA(sd)->resize_obj);
136
137    //Limit to Max Size
138    evas_object_size_hint_max_get(obj, &max_size.x, &max_size.y);
139
140    if ((max_size.y > 0) && (base_size.y > max_size.y))
141      base_size.y = max_size.y;
142
143    if ((max_size.x > 0) && (base_size.x > max_size.x))
144      base_size.x = max_size.x;
145
146    //Limit to Min Size
147    evas_object_size_hint_min_get(obj, &min_size.x, &min_size.y);
148
149    if ((min_size.y > 0) && (base_size.y < min_size.y))
150      base_size.y = min_size.y;
151
152    if ((min_size.x > 0) && (base_size.x < min_size.x))
153      base_size.x = min_size.x;
154
155    //Check the Which direction is available.
156    //If find a avaialble direction, it adjusts position and size.
157    for (idx = 0; idx < 4; idx++)
158      {
159         switch (sd->dir_priority[idx])
160           {
161            case ELM_CTXPOPUP_DIRECTION_UP:
162              temp.y = (pos.y - base_size.y);
163              if ((temp.y - arrow_size.y) < hover_area.y)
164                continue;
165
166              _x_pos_adjust(&pos, &base_size, &hover_area);
167              pos.y -= base_size.y;
168              dir = ELM_CTXPOPUP_DIRECTION_UP;
169              break;
170
171            case ELM_CTXPOPUP_DIRECTION_LEFT:
172              temp.x = (pos.x - base_size.x);
173              if ((temp.x - arrow_size.x) < hover_area.x)
174                continue;
175
176              _y_pos_adjust(&pos, &base_size, &hover_area);
177              pos.x -= base_size.x;
178              dir = ELM_CTXPOPUP_DIRECTION_LEFT;
179              break;
180
181            case ELM_CTXPOPUP_DIRECTION_RIGHT:
182              temp.x = (pos.x + base_size.x);
183              if ((temp.x + arrow_size.x) >
184                  (hover_area.x + hover_area.w))
185                continue;
186
187              _y_pos_adjust(&pos, &base_size, &hover_area);
188              dir = ELM_CTXPOPUP_DIRECTION_RIGHT;
189              break;
190
191            case ELM_CTXPOPUP_DIRECTION_DOWN:
192              temp.y = (pos.y + base_size.y);
193              if ((temp.y + arrow_size.y) >
194                  (hover_area.y + hover_area.h))
195                continue;
196
197              _x_pos_adjust(&pos, &base_size, &hover_area);
198              dir = ELM_CTXPOPUP_DIRECTION_DOWN;
199              break;
200
201            default:
202              continue;
203           }
204         break;
205      }
206
207    //In this case, all directions are invalid because of lack of space.
208    if (idx == 4)
209      {
210         Evas_Coord length[2];
211
212         if (!sd->horizontal)
213           {
214              length[0] = pos.y - hover_area.y;
215              length[1] = (hover_area.y + hover_area.h) - pos.y;
216
217              // ELM_CTXPOPUP_DIRECTION_UP
218              if (length[0] > length[1])
219                {
220                   _x_pos_adjust(&pos, &base_size, &hover_area);
221                   pos.y -= base_size.y;
222                   dir = ELM_CTXPOPUP_DIRECTION_UP;
223                   if (pos.y < (hover_area.y + arrow_size.y))
224                     {
225                        base_size.y -= ((hover_area.y + arrow_size.y) - pos.y);
226                        pos.y = hover_area.y + arrow_size.y;
227                     }
228                }
229              //ELM_CTXPOPUP_DIRECTION_DOWN
230              else
231                {
232                   _x_pos_adjust(&pos, &base_size, &hover_area);
233                   dir = ELM_CTXPOPUP_DIRECTION_DOWN;
234                   if ((pos.y + arrow_size.y + base_size.y) >
235                       (hover_area.y + hover_area.h))
236                     base_size.y -=
237                       ((pos.y + arrow_size.y + base_size.y) -
238                        (hover_area.y + hover_area.h));
239                }
240           }
241         else
242           {
243              length[0] = pos.x - hover_area.x;
244              length[1] = (hover_area.x + hover_area.w) - pos.x;
245
246              //ELM_CTXPOPUP_DIRECTION_LEFT
247              if (length[0] > length[1])
248                {
249                   _y_pos_adjust(&pos, &base_size, &hover_area);
250                   pos.x -= base_size.x;
251                   dir = ELM_CTXPOPUP_DIRECTION_LEFT;
252                   if (pos.x < (hover_area.x + arrow_size.x))
253                     {
254                        base_size.x -= ((hover_area.x + arrow_size.x) - pos.x);
255                        pos.x = hover_area.x + arrow_size.x;
256                     }
257                }
258              //ELM_CTXPOPUP_DIRECTION_RIGHT
259              else
260                {
261                   _y_pos_adjust(&pos, &base_size, &hover_area);
262                   dir = ELM_CTXPOPUP_DIRECTION_RIGHT;
263                   if (pos.x + (arrow_size.x + base_size.x) >
264                       hover_area.x + hover_area.w)
265                     base_size.x -=
266                       ((pos.x + arrow_size.x + base_size.x) -
267                        (hover_area.x + hover_area.w));
268                }
269           }
270      }
271
272    //Final position and size.
273    rect->x = pos.x;
274    rect->y = pos.y;
275    rect->w = base_size.x;
276    rect->h = base_size.y;
277
278    return dir;
279 }
280
281 static void
282 _arrow_update(Evas_Object *obj,
283               Elm_Ctxpopup_Direction dir,
284               Evas_Coord_Rectangle base_size)
285 {
286    Evas_Coord_Rectangle arrow_size;
287    Evas_Coord x, y;
288    double drag;
289
290    ELM_CTXPOPUP_DATA_GET(obj, sd);
291
292    evas_object_geometry_get(obj, &x, &y, NULL, NULL);
293    evas_object_geometry_get
294      (sd->arrow, NULL, NULL, &arrow_size.w, &arrow_size.h);
295
296    /* arrow is not being kept as sub-object on purpose, here. the
297     * design of the widget does not help with the contrary */
298
299    switch (dir)
300      {
301       case ELM_CTXPOPUP_DIRECTION_RIGHT:
302         edje_object_signal_emit(sd->arrow, "elm,state,left", "elm");
303         edje_object_part_swallow
304           (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_left",
305           sd->arrow);
306         if (base_size.h > 0)
307           {
308              if (y < ((arrow_size.h * 0.5) + base_size.y))
309                y = 0;
310              else if (y > base_size.y + base_size.h - (arrow_size.h * 0.5))
311                y = base_size.h - arrow_size.h;
312              else
313                y = y - base_size.y - (arrow_size.h * 0.5);
314              drag = (double)(y) / (double)(base_size.h - arrow_size.h);
315              edje_object_part_drag_value_set
316                (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_left", 1,
317                drag);
318           }
319         break;
320
321       case ELM_CTXPOPUP_DIRECTION_LEFT:
322         edje_object_signal_emit(sd->arrow, "elm,state,right", "elm");
323         edje_object_part_swallow
324           (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_right",
325           sd->arrow);
326
327         if (base_size.h > 0)
328           {
329              if (y < ((arrow_size.h * 0.5) + base_size.y))
330                y = 0;
331              else if (y > (base_size.y + base_size.h - (arrow_size.h * 0.5)))
332                y = base_size.h - arrow_size.h;
333              else
334                y = y - base_size.y - (arrow_size.h * 0.5);
335              drag = (double)(y) / (double)(base_size.h - arrow_size.h);
336              edje_object_part_drag_value_set
337                (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_right", 0,
338                drag);
339           }
340         break;
341
342       case ELM_CTXPOPUP_DIRECTION_DOWN:
343         edje_object_signal_emit(sd->arrow, "elm,state,top", "elm");
344         edje_object_part_swallow
345           (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_up",
346           sd->arrow);
347
348         if (base_size.w > 0)
349           {
350              if (x < ((arrow_size.w * 0.5) + base_size.x))
351                x = 0;
352              else if (x > (base_size.x + base_size.w - (arrow_size.w * 0.5)))
353                x = base_size.w - arrow_size.w;
354              else
355                x = x - base_size.x - (arrow_size.w * 0.5);
356              drag = (double)(x) / (double)(base_size.w - arrow_size.w);
357              edje_object_part_drag_value_set
358                (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_up", drag,
359                1);
360           }
361         break;
362
363       case ELM_CTXPOPUP_DIRECTION_UP:
364         edje_object_signal_emit(sd->arrow, "elm,state,bottom", "elm");
365         edje_object_part_swallow
366           (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_down",
367           sd->arrow);
368
369         if (base_size.w > 0)
370           {
371              if (x < ((arrow_size.w * 0.5) + base_size.x))
372                x = 0;
373              else if (x > (base_size.x + base_size.w - (arrow_size.w * 0.5)))
374                x = base_size.w - arrow_size.w;
375              else x = x - base_size.x - (arrow_size.w * 0.5);
376              drag = (double)(x) / (double)(base_size.w - arrow_size.w);
377              edje_object_part_drag_value_set
378                (ELM_WIDGET_DATA(sd)->resize_obj, "elm.swallow.arrow_down",
379                drag, 0);
380           }
381         break;
382
383       default:
384         break;
385      }
386
387    //should be here for getting accurate geometry value
388    evas_object_smart_calculate(ELM_WIDGET_DATA(sd)->resize_obj);
389 }
390
391 static void
392 _show_signals_emit(Evas_Object *obj,
393                    Elm_Ctxpopup_Direction dir)
394 {
395    ELM_CTXPOPUP_DATA_GET(obj, sd);
396
397    if (!sd->visible) return;
398    if ((sd->list) && (!sd->list_visible)) return;
399
400    switch (dir)
401      {
402       case ELM_CTXPOPUP_DIRECTION_UP:
403         elm_layout_signal_emit(obj, "elm,state,show,up", "elm");
404         break;
405
406       case ELM_CTXPOPUP_DIRECTION_LEFT:
407         elm_layout_signal_emit(obj, "elm,state,show,left", "elm");
408         break;
409
410       case ELM_CTXPOPUP_DIRECTION_RIGHT:
411         elm_layout_signal_emit(obj, "elm,state,show,right", "elm");
412         break;
413
414       case ELM_CTXPOPUP_DIRECTION_DOWN:
415         elm_layout_signal_emit(obj, "elm,state,show,down", "elm");
416         break;
417
418       default:
419         break;
420      }
421
422    edje_object_signal_emit(sd->bg, "elm,state,show", "elm");
423    elm_layout_signal_emit(obj, "elm,state,show", "elm");
424 }
425
426 static void
427 _hide_signals_emit(Evas_Object *obj,
428                    Elm_Ctxpopup_Direction dir)
429 {
430    ELM_CTXPOPUP_DATA_GET(obj, sd);
431
432    if (!sd->visible) return;
433
434    switch (dir)
435      {
436       case ELM_CTXPOPUP_DIRECTION_UP:
437         elm_layout_signal_emit(obj, "elm,state,hide,up", "elm");
438         break;
439
440       case ELM_CTXPOPUP_DIRECTION_LEFT:
441         elm_layout_signal_emit(obj, "elm,state,hide,left", "elm");
442         break;
443
444       case ELM_CTXPOPUP_DIRECTION_RIGHT:
445         elm_layout_signal_emit(obj, "elm,state,hide,right", "elm");
446         break;
447
448       case ELM_CTXPOPUP_DIRECTION_DOWN:
449         elm_layout_signal_emit(obj, "elm,state,hide,down", "elm");
450         break;
451
452       default:
453         break;
454      }
455
456    edje_object_signal_emit(sd->bg, "elm,state,hide", "elm");
457 }
458
459 static void
460 _base_shift_by_arrow(Evas_Object *arrow,
461                      Elm_Ctxpopup_Direction dir,
462                      Evas_Coord_Rectangle *rect)
463 {
464    Evas_Coord arrow_w, arrow_h;
465
466    evas_object_geometry_get(arrow, NULL, NULL, &arrow_w, &arrow_h);
467    switch (dir)
468      {
469       case ELM_CTXPOPUP_DIRECTION_RIGHT:
470         rect->x += arrow_w;
471         break;
472
473       case ELM_CTXPOPUP_DIRECTION_LEFT:
474         rect->x -= arrow_w;
475         break;
476
477       case ELM_CTXPOPUP_DIRECTION_DOWN:
478         rect->y += arrow_h;
479         break;
480
481       case ELM_CTXPOPUP_DIRECTION_UP:
482         rect->y -= arrow_h;
483         break;
484
485       default:
486         break;
487      }
488 }
489
490 static Eina_Bool
491 _elm_ctxpopup_smart_sub_object_add(Evas_Object *obj,
492                                    Evas_Object *sobj)
493 {
494    Elm_Widget_Smart_Class *parent_parent;
495
496    parent_parent = (Elm_Widget_Smart_Class *)((Evas_Smart_Class *)
497                                               _elm_ctxpopup_parent_sc)->parent;
498
499    /* skipping layout's code, which registers size hint changing
500     * callback on sub objects. a hack to make ctxpopup live, as it is,
501     * on the new classing schema. this widget needs a total
502     * rewrite. */
503    if (!parent_parent->sub_object_add(obj, sobj))
504      return EINA_FALSE;
505
506    return EINA_TRUE;
507 }
508
509 static void
510 _elm_ctxpopup_smart_sizing_eval(Evas_Object *obj)
511 {
512    Evas_Coord_Rectangle rect = { 0, 0, 1, 1 };
513    Evas_Coord_Point list_size = { 0, 0 };
514
515    ELM_CTXPOPUP_DATA_GET(obj, sd);
516
517    if (!sd->arrow) return;  /* simple way to flag "under deletion" */
518
519    //Base
520    sd->dir = _base_geometry_calc(obj, &rect);
521
522    _arrow_update(obj, sd->dir, rect);
523
524    _base_shift_by_arrow(sd->arrow, sd->dir, &rect);
525
526    if ((sd->list) && (sd->list_visible))
527      {
528         evas_object_geometry_get(sd->list, 0, 0, &list_size.x, &list_size.y);
529         if ((list_size.x >= rect.w) || (list_size.y >= rect.h))
530           {
531              elm_list_mode_set(sd->list, ELM_LIST_COMPRESS);
532              evas_object_size_hint_min_set(sd->box, rect.w, rect.h);
533              evas_object_size_hint_min_set(obj, rect.w, rect.h);
534           }
535      }
536
537    evas_object_move(ELM_WIDGET_DATA(sd)->resize_obj, rect.x, rect.y);
538    evas_object_resize(ELM_WIDGET_DATA(sd)->resize_obj, rect.w, rect.h);
539
540    _show_signals_emit(obj, sd->dir);
541 }
542
543 static void
544 _on_parent_del(void *data,
545                Evas *e __UNUSED__,
546                Evas_Object *obj __UNUSED__,
547                void *event_info __UNUSED__)
548 {
549    evas_object_del(data);
550 }
551
552 static void
553 _on_parent_move(void *data,
554                 Evas *e __UNUSED__,
555                 Evas_Object *obj __UNUSED__,
556                 void *event_info __UNUSED__)
557 {
558    ELM_CTXPOPUP_DATA_GET(data, sd);
559
560    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
561
562    if (sd->visible) elm_layout_sizing_eval(data);
563 }
564
565 static void
566 _on_parent_resize(void *data,
567                   Evas *e __UNUSED__,
568                   Evas_Object *obj __UNUSED__,
569                   void *event_info __UNUSED__)
570 {
571    ELM_CTXPOPUP_DATA_GET(data, sd);
572
573    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
574
575    evas_object_hide(data);
576 }
577
578 static void
579 _parent_detach(Evas_Object *obj)
580 {
581    ELM_CTXPOPUP_DATA_GET(obj, sd);
582
583    if (!sd->parent) return;
584
585    evas_object_event_callback_del_full
586      (sd->parent, EVAS_CALLBACK_DEL, _on_parent_del, obj);
587    evas_object_event_callback_del_full
588      (sd->parent, EVAS_CALLBACK_MOVE, _on_parent_move, obj);
589    evas_object_event_callback_del_full
590      (sd->parent, EVAS_CALLBACK_RESIZE, _on_parent_resize, obj);
591 }
592
593 static void
594 _on_content_resized(void *data,
595                     Evas *e __UNUSED__,
596                     Evas_Object *obj __UNUSED__,
597                     void *event_info __UNUSED__)
598 {
599    ELM_CTXPOPUP_DATA_GET(data, sd);
600
601    elm_box_recalculate(sd->box);
602    elm_layout_sizing_eval(data);
603 }
604
605 //FIXME: lost the content size when theme hook is called.
606 static Eina_Bool
607 _elm_ctxpopup_smart_theme(Evas_Object *obj)
608 {
609    ELM_CTXPOPUP_DATA_GET(obj, sd);
610
611    if (!ELM_WIDGET_CLASS(_elm_ctxpopup_parent_sc)->theme(obj))
612      return EINA_FALSE;
613
614    elm_widget_theme_object_set
615      (obj, sd->bg, "ctxpopup", "bg", elm_widget_style_get(obj));
616    elm_widget_theme_object_set
617      (obj, sd->arrow, "ctxpopup", "arrow", elm_widget_style_get(obj));
618
619    if (sd->list)
620      {
621         if (!strncmp(elm_object_style_get(obj), "default", strlen("default")))
622           elm_object_style_set(sd->list, "ctxpopup");
623         else
624           elm_object_style_set(sd->list, elm_object_style_get(obj));
625      }
626
627    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
628
629    if (sd->visible) elm_layout_sizing_eval(obj);
630
631    return EINA_TRUE;
632 }
633
634 /* kind of a big and tricky override here: an internal box will hold
635  * the actual content. content aliases won't be of much help here */
636 static Eina_Bool
637 _elm_ctxpopup_smart_content_set(Evas_Object *obj,
638                                 const char *part,
639                                 Evas_Object *content)
640 {
641    Evas_Coord min_w = -1, min_h = -1;
642
643    ELM_CTXPOPUP_DATA_GET(obj, sd);
644
645    if ((part) && (strcmp(part, "default")))
646      return ELM_CONTAINER_CLASS(_elm_ctxpopup_parent_sc)->content_set
647               (obj, part, content);
648
649    if (!content) return EINA_FALSE;
650
651    if (content == sd->content) return EINA_TRUE;
652
653    if (sd->content) evas_object_del(sd->content);
654    if (sd->content == sd->list) sd->list = NULL;
655
656    evas_object_size_hint_weight_set
657      (content, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
658    evas_object_size_hint_fill_set
659      (content, EVAS_HINT_FILL, EVAS_HINT_FILL);
660
661    /* since it's going to be a box content, not a layout's... */
662    evas_object_show(content);
663
664    evas_object_size_hint_min_get(content, &min_w, &min_h);
665    evas_object_size_hint_min_set(sd->box, min_w, min_h);
666    elm_box_pack_end(sd->box, content);
667
668    sd->content = content;
669    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
670
671    if (sd->visible) elm_layout_sizing_eval(obj);
672
673    return EINA_TRUE;
674 }
675
676 static Evas_Object *
677 _elm_ctxpopup_smart_content_get(const Evas_Object *obj,
678                                 const char *part)
679 {
680    ELM_CTXPOPUP_DATA_GET(obj, sd);
681
682    if ((part) && (strcmp(part, "default")))
683      return ELM_CONTAINER_CLASS(_elm_ctxpopup_parent_sc)->content_get
684               (obj, part);
685
686    return sd->content;
687 }
688
689 static Evas_Object *
690 _elm_ctxpopup_smart_content_unset(Evas_Object *obj,
691                                   const char *part)
692 {
693    Evas_Object *content;
694
695    ELM_CTXPOPUP_DATA_GET(obj, sd);
696
697    if ((part) && (strcmp(part, "default")))
698      return ELM_CONTAINER_CLASS(_elm_ctxpopup_parent_sc)->content_unset
699               (obj, part);
700
701    content = sd->content;
702    if (!content) return NULL;
703
704    sd->content = NULL;
705    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
706
707    if (sd->visible) elm_layout_sizing_eval(obj);
708
709    return content;
710 }
711
712 static void
713 _item_text_set_hook(Elm_Object_Item *it,
714                     const char *part,
715                     const char *label)
716 {
717    Elm_Ctxpopup_Item *ctxpopup_it;
718
719    if ((part) && (strcmp(part, "default"))) return;
720
721    ctxpopup_it = (Elm_Ctxpopup_Item *)it;
722
723    ELM_CTXPOPUP_DATA_GET(WIDGET(ctxpopup_it), sd);
724
725    elm_object_item_part_text_set(ctxpopup_it->list_item, "default", label);
726    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
727
728    if (sd->visible) elm_layout_sizing_eval(WIDGET(ctxpopup_it));
729 }
730
731 static const char *
732 _item_text_get_hook(const Elm_Object_Item *it,
733                     const char *part)
734 {
735    Elm_Ctxpopup_Item *ctxpopup_it;
736
737    if (part && strcmp(part, "default")) return NULL;
738
739    ctxpopup_it = (Elm_Ctxpopup_Item *)it;
740    return elm_object_item_part_text_get(ctxpopup_it->list_item, "default");
741 }
742
743 static void
744 _item_content_set_hook(Elm_Object_Item *it,
745                        const char *part,
746                        Evas_Object *content)
747 {
748    Elm_Ctxpopup_Item *ctxpopup_it;
749
750    if ((part) && (strcmp(part, "icon"))
751        && (strcmp(part, "start"))
752        && (strcmp(part, "end"))) return;
753
754    ctxpopup_it = (Elm_Ctxpopup_Item *)it;
755
756    ELM_CTXPOPUP_DATA_GET(WIDGET(ctxpopup_it), sd);
757
758    if ((part) && (!strcmp(part, "end")))
759      elm_object_item_part_content_set(ctxpopup_it->list_item, "end", content);
760    else
761      elm_object_item_part_content_set
762        (ctxpopup_it->list_item, "start", content);
763
764    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
765
766    if (sd->visible) elm_layout_sizing_eval(WIDGET(ctxpopup_it));
767 }
768
769 static Evas_Object *
770 _item_content_get_hook(const Elm_Object_Item *it,
771                        const char *part)
772 {
773    Elm_Ctxpopup_Item *ctxpopup_it;
774
775    if (part && strcmp(part, "icon") && strcmp(part, "start")
776        && strcmp(part, "end")) return NULL;
777
778    ctxpopup_it = (Elm_Ctxpopup_Item *)it;
779
780    if (part && !strcmp(part, "end"))
781      return elm_object_item_part_content_get(ctxpopup_it->list_item, "end");
782    else
783      return elm_object_item_part_content_get(ctxpopup_it->list_item, "start");
784 }
785
786 static void
787 _item_disable_hook(Elm_Object_Item *it)
788 {
789    Elm_Ctxpopup_Item *ctxpopup_it = (Elm_Ctxpopup_Item *)it;
790
791    elm_object_item_disabled_set
792      (ctxpopup_it->list_item, elm_widget_item_disabled_get(ctxpopup_it));
793 }
794
795 static void
796 _item_signal_emit_hook(Elm_Object_Item *it,
797                        const char *emission,
798                        const char *source)
799 {
800    Elm_Ctxpopup_Item *ctxpopup_it = (Elm_Ctxpopup_Item *)it;
801
802    elm_object_item_signal_emit(ctxpopup_it->list_item, emission, source);
803 }
804
805 static void
806 _bg_clicked_cb(void *data,
807                Evas_Object *obj __UNUSED__,
808                const char *emission __UNUSED__,
809                const char *source __UNUSED__)
810 {
811    ELM_CTXPOPUP_DATA_GET(data, sd);
812
813    _hide_signals_emit(data, sd->dir);
814 }
815
816 static void
817 _on_show(void *data __UNUSED__,
818          Evas *e __UNUSED__,
819          Evas_Object *obj,
820          void *event_info __UNUSED__)
821 {
822    ELM_CTXPOPUP_DATA_GET(obj, sd);
823
824    if (sd->list)
825      {
826         elm_list_go(sd->list);
827         sd->visible = EINA_TRUE;
828         elm_object_focus_set(obj, EINA_TRUE);
829         return;
830      }
831
832    if (!sd->content) return;
833
834    sd->visible = EINA_TRUE;
835
836    evas_object_show(sd->bg);
837    evas_object_show(sd->arrow);
838
839    edje_object_signal_emit(sd->bg, "elm,state,show", "elm");
840    elm_layout_signal_emit(obj, "elm,state,show", "elm");
841
842    elm_layout_sizing_eval(obj);
843
844    elm_object_focus_set(obj, EINA_TRUE);
845 }
846
847 static void
848 _on_hide(void *data __UNUSED__,
849          Evas *e __UNUSED__,
850          Evas_Object *obj,
851          void *event_info __UNUSED__)
852 {
853    ELM_CTXPOPUP_DATA_GET(obj, sd);
854
855    if (!sd->visible) return;
856
857    evas_object_hide(sd->bg);
858    evas_object_hide(sd->arrow);
859
860    sd->visible = EINA_FALSE;
861    sd->list_visible = EINA_FALSE;
862 }
863
864 static void
865 _on_move(void *data __UNUSED__,
866          Evas *e __UNUSED__,
867          Evas_Object *obj,
868          void *event_info __UNUSED__)
869 {
870    ELM_CTXPOPUP_DATA_GET(obj, sd);
871
872    if (sd->visible) evas_object_show(sd->arrow);
873
874    elm_layout_sizing_eval(obj);
875 }
876
877 static void
878 _hide_finished_cb(void *data,
879                   Evas_Object *obj __UNUSED__,
880                   const char *emission __UNUSED__,
881                   const char *source __UNUSED__)
882 {
883    evas_object_hide(data);
884    evas_object_smart_callback_call(data, SIG_DISMISSED, NULL);
885 }
886
887 static void
888 _list_resize_cb(void *data,
889                 Evas *e __UNUSED__,
890                 Evas_Object *obj __UNUSED__,
891                 void *event_info __UNUSED__)
892 {
893    ELM_CTXPOPUP_DATA_GET(data, sd);
894
895    if (!sd->visible) return;
896    if (sd->list_visible) return;
897
898    sd->list_visible = EINA_TRUE;
899
900    evas_object_show(sd->bg);
901    evas_object_show(sd->arrow);
902
903    elm_layout_sizing_eval(data);
904 }
905
906 static void
907 _ctxpopup_restack_cb(void *data __UNUSED__,
908                      Evas *e __UNUSED__,
909                      Evas_Object *obj,
910                      void *event_info __UNUSED__)
911 {
912    ELM_CTXPOPUP_DATA_GET(obj, sd);
913
914    evas_object_layer_set(sd->bg, evas_object_layer_get(obj));
915 }
916
917 static void
918 _list_del(Elm_Ctxpopup_Smart_Data *sd)
919 {
920    if (!sd->list) return;
921
922    evas_object_del(sd->list);
923    sd->list = NULL;
924 }
925
926 static Eina_Bool
927 _item_del_pre_hook(Elm_Object_Item *it)
928 {
929    Evas_Object *list;
930    Elm_Ctxpopup_Item *ctxpopup_it = (Elm_Ctxpopup_Item *)it;
931
932    ELM_CTXPOPUP_DATA_GET(WIDGET(ctxpopup_it), sd);
933
934    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
935
936    list = elm_object_item_widget_get(ctxpopup_it->list_item);
937
938    if (eina_list_count(elm_list_items_get(list)) < 2)
939      {
940         elm_object_item_del(ctxpopup_it->list_item);
941         evas_object_hide(WIDGET(ctxpopup_it));
942
943         return EINA_TRUE;
944      }
945
946    elm_object_item_del(ctxpopup_it->list_item);
947    if (sd->list_visible) elm_layout_sizing_eval(WIDGET(ctxpopup_it));
948
949    return EINA_TRUE;
950 }
951
952 static Eina_Bool
953 _elm_ctxpopup_smart_disable(Evas_Object *obj)
954 {
955    ELM_CTXPOPUP_DATA_GET(obj, sd);
956
957    if (!ELM_WIDGET_CLASS(_elm_ctxpopup_parent_sc)->disable(obj))
958      return EINA_FALSE;
959
960    elm_object_disabled_set(sd->list, elm_widget_disabled_get(obj));
961
962    return EINA_TRUE;
963 }
964
965 static void
966 _elm_ctxpopup_smart_add(Evas_Object *obj)
967 {
968    EVAS_SMART_DATA_ALLOC(obj, Elm_Ctxpopup_Smart_Data);
969
970    ELM_WIDGET_CLASS(_elm_ctxpopup_parent_sc)->base.add(obj);
971
972    elm_layout_theme_set(obj, "ctxpopup", "base", elm_widget_style_get(obj));
973    elm_layout_signal_callback_add
974      (obj, "elm,action,hide,finished", "", _hide_finished_cb, obj);
975
976    //Background
977    priv->bg = edje_object_add(evas_object_evas_get(obj));
978    elm_widget_theme_object_set(obj, priv->bg, "ctxpopup", "bg", "default");
979    edje_object_signal_callback_add
980      (priv->bg, "elm,action,click", "", _bg_clicked_cb, obj);
981
982    evas_object_stack_below(priv->bg, obj);
983
984    //Arrow
985    priv->arrow = edje_object_add(evas_object_evas_get(obj));
986    elm_widget_theme_object_set
987      (obj, priv->arrow, "ctxpopup", "arrow", "default");
988
989    priv->dir_priority[0] = ELM_CTXPOPUP_DIRECTION_UP;
990    priv->dir_priority[1] = ELM_CTXPOPUP_DIRECTION_LEFT;
991    priv->dir_priority[2] = ELM_CTXPOPUP_DIRECTION_RIGHT;
992    priv->dir_priority[3] = ELM_CTXPOPUP_DIRECTION_DOWN;
993    priv->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
994
995    evas_object_event_callback_add
996      (obj, EVAS_CALLBACK_RESTACK, _ctxpopup_restack_cb, obj);
997
998    priv->box = elm_box_add(obj);
999    evas_object_size_hint_weight_set
1000      (priv->box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
1001
1002    evas_object_event_callback_add
1003      (priv->box, EVAS_CALLBACK_RESIZE, _on_content_resized, obj);
1004
1005    /* box will be our content placeholder, thus the parent's version call */
1006    ELM_CONTAINER_CLASS(_elm_ctxpopup_parent_sc)->content_set
1007      (obj, "elm.swallow.content", priv->box);
1008
1009    evas_object_event_callback_add(obj, EVAS_CALLBACK_SHOW, _on_show, NULL);
1010    evas_object_event_callback_add(obj, EVAS_CALLBACK_HIDE, _on_hide, NULL);
1011    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _on_move, NULL);
1012
1013    elm_widget_can_focus_set(obj, EINA_TRUE);
1014 }
1015
1016 static void
1017 _elm_ctxpopup_smart_del(Evas_Object *obj)
1018 {
1019    ELM_CTXPOPUP_DATA_GET(obj, sd);
1020
1021    evas_object_event_callback_del_full
1022      (sd->box, EVAS_CALLBACK_RESIZE, _on_content_resized, obj);
1023    _parent_detach(obj);
1024
1025    elm_ctxpopup_clear(obj);
1026    evas_object_del(sd->arrow);
1027    sd->arrow = NULL; /* stops _sizing_eval() from going on on deletion */
1028
1029    evas_object_del(sd->bg);
1030    sd->bg = NULL;
1031
1032    ELM_WIDGET_CLASS(_elm_ctxpopup_parent_sc)->base.del(obj);
1033 }
1034
1035 static void
1036 _elm_ctxpopup_smart_parent_set(Evas_Object *obj,
1037                                Evas_Object *parent)
1038 {
1039    //default parent is to be hover parent
1040    elm_ctxpopup_hover_parent_set(obj, parent);
1041 }
1042
1043 static void
1044 _elm_ctxpopup_smart_set_user(Elm_Ctxpopup_Smart_Class *sc)
1045 {
1046    ELM_WIDGET_CLASS(sc)->base.add = _elm_ctxpopup_smart_add;
1047    ELM_WIDGET_CLASS(sc)->base.del = _elm_ctxpopup_smart_del;
1048
1049    ELM_WIDGET_CLASS(sc)->parent_set = _elm_ctxpopup_smart_parent_set;
1050    ELM_WIDGET_CLASS(sc)->disable = _elm_ctxpopup_smart_disable;
1051    ELM_WIDGET_CLASS(sc)->event = _elm_ctxpopup_smart_event;
1052    ELM_WIDGET_CLASS(sc)->theme = _elm_ctxpopup_smart_theme;
1053    ELM_WIDGET_CLASS(sc)->sub_object_add = _elm_ctxpopup_smart_sub_object_add;
1054    ELM_WIDGET_CLASS(sc)->focus_next = _elm_ctxpopup_smart_focus_next;
1055    ELM_WIDGET_CLASS(sc)->focus_direction = NULL;
1056
1057    ELM_CONTAINER_CLASS(sc)->content_get = _elm_ctxpopup_smart_content_get;
1058    ELM_CONTAINER_CLASS(sc)->content_set = _elm_ctxpopup_smart_content_set;
1059    ELM_CONTAINER_CLASS(sc)->content_unset = _elm_ctxpopup_smart_content_unset;
1060
1061    ELM_LAYOUT_CLASS(sc)->sizing_eval = _elm_ctxpopup_smart_sizing_eval;
1062 }
1063
1064 EAPI const Elm_Ctxpopup_Smart_Class *
1065 elm_ctxpopup_smart_class_get(void)
1066 {
1067    static Elm_Ctxpopup_Smart_Class _sc =
1068      ELM_CTXPOPUP_SMART_CLASS_INIT_NAME_VERSION(ELM_CTXPOPUP_SMART_NAME);
1069    static const Elm_Ctxpopup_Smart_Class *class = NULL;
1070    Evas_Smart_Class *esc = (Evas_Smart_Class *)&_sc;
1071
1072    if (class)
1073      return class;
1074
1075    _elm_ctxpopup_smart_set(&_sc);
1076    esc->callbacks = _smart_callbacks;
1077    class = &_sc;
1078
1079    return class;
1080 }
1081
1082 EAPI Evas_Object *
1083 elm_ctxpopup_add(Evas_Object *parent)
1084 {
1085    Evas_Object *obj;
1086
1087    EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
1088
1089    obj = elm_widget_add(_elm_ctxpopup_smart_class_new(), parent);
1090    if (!obj) return NULL;
1091
1092    if (!elm_widget_sub_object_add(parent, obj))
1093      ERR("could not add %p as sub object of %p", obj, parent);
1094
1095    return obj;
1096 }
1097
1098 EAPI void
1099 elm_ctxpopup_hover_parent_set(Evas_Object *obj,
1100                               Evas_Object *parent)
1101 {
1102    Evas_Coord x, y, w, h;
1103
1104    ELM_CTXPOPUP_CHECK(obj);
1105    ELM_CTXPOPUP_DATA_GET(obj, sd);
1106
1107    if (!parent) return;
1108
1109    _parent_detach(obj);
1110
1111    evas_object_event_callback_add
1112      (parent, EVAS_CALLBACK_DEL, _on_parent_del, obj);
1113    evas_object_event_callback_add
1114      (parent, EVAS_CALLBACK_MOVE, _on_parent_move, obj);
1115    evas_object_event_callback_add
1116      (parent, EVAS_CALLBACK_RESIZE, _on_parent_resize, obj);
1117
1118    sd->parent = parent;
1119
1120    //Update Background
1121    evas_object_geometry_get(parent, &x, &y, &w, &h);
1122    evas_object_move(sd->bg, x, y);
1123    evas_object_resize(sd->bg, w, h);
1124
1125    if (sd->visible) elm_layout_sizing_eval(obj);
1126 }
1127
1128 EAPI Evas_Object *
1129 elm_ctxpopup_hover_parent_get(const Evas_Object *obj)
1130 {
1131    ELM_CTXPOPUP_CHECK(obj) NULL;
1132    ELM_CTXPOPUP_DATA_GET(obj, sd);
1133
1134    return sd->parent;
1135 }
1136
1137 EAPI void
1138 elm_ctxpopup_clear(Evas_Object *obj)
1139 {
1140    ELM_CTXPOPUP_CHECK(obj);
1141    ELM_CTXPOPUP_DATA_GET(obj, sd);
1142
1143    _list_del(sd);
1144    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
1145 }
1146
1147 EAPI void
1148 elm_ctxpopup_horizontal_set(Evas_Object *obj,
1149                             Eina_Bool horizontal)
1150 {
1151    ELM_CTXPOPUP_CHECK(obj);
1152    ELM_CTXPOPUP_DATA_GET(obj, sd);
1153
1154    sd->horizontal = !!horizontal;
1155
1156    if (!sd->list) return;
1157
1158    elm_list_horizontal_set(sd->list, sd->horizontal);
1159
1160    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
1161
1162    if (sd->visible) elm_layout_sizing_eval(obj);
1163 }
1164
1165 EAPI Eina_Bool
1166 elm_ctxpopup_horizontal_get(const Evas_Object *obj)
1167 {
1168    ELM_CTXPOPUP_CHECK(obj) EINA_FALSE;
1169    ELM_CTXPOPUP_DATA_GET(obj, sd);
1170
1171    return sd->horizontal;
1172 }
1173
1174 EAPI Elm_Object_Item *
1175 elm_ctxpopup_item_append(Evas_Object *obj,
1176                          const char *label,
1177                          Evas_Object *icon,
1178                          Evas_Smart_Cb func,
1179                          const void *data)
1180 {
1181    Elm_Ctxpopup_Item *item;
1182
1183    ELM_CTXPOPUP_CHECK(obj) NULL;
1184    ELM_CTXPOPUP_DATA_GET(obj, sd);
1185
1186    item = elm_widget_item_new(obj, Elm_Ctxpopup_Item);
1187    if (!item) return NULL;
1188
1189    elm_widget_item_del_pre_hook_set(item, _item_del_pre_hook);
1190    elm_widget_item_disable_hook_set(item, _item_disable_hook);
1191    elm_widget_item_text_set_hook_set(item, _item_text_set_hook);
1192    elm_widget_item_text_get_hook_set(item, _item_text_get_hook);
1193    elm_widget_item_content_set_hook_set(item, _item_content_set_hook);
1194    elm_widget_item_content_get_hook_set(item, _item_content_get_hook);
1195    elm_widget_item_signal_emit_hook_set(item, _item_signal_emit_hook);
1196
1197    if (!sd->list)
1198      {
1199         //The first item is appended.
1200         sd->list = elm_list_add(obj);
1201         elm_list_mode_set(sd->list, ELM_LIST_EXPAND);
1202         elm_list_horizontal_set(sd->list, sd->horizontal);
1203         evas_object_event_callback_add
1204           (sd->list, EVAS_CALLBACK_RESIZE, _list_resize_cb, obj);
1205         elm_layout_content_set(obj, "default", sd->list);
1206      }
1207
1208    item->list_item =
1209      elm_list_item_append(sd->list, label, icon, NULL, func, data);
1210
1211    sd->dir = ELM_CTXPOPUP_DIRECTION_UNKNOWN;
1212
1213    if (sd->visible) elm_layout_sizing_eval(obj);
1214
1215    return (Elm_Object_Item *)item;
1216 }
1217
1218 EAPI void
1219 elm_ctxpopup_direction_priority_set(Evas_Object *obj,
1220                                     Elm_Ctxpopup_Direction first,
1221                                     Elm_Ctxpopup_Direction second,
1222                                     Elm_Ctxpopup_Direction third,
1223                                     Elm_Ctxpopup_Direction fourth)
1224 {
1225    ELM_CTXPOPUP_CHECK(obj);
1226    ELM_CTXPOPUP_DATA_GET(obj, sd);
1227
1228    sd->dir_priority[0] = first;
1229    sd->dir_priority[1] = second;
1230    sd->dir_priority[2] = third;
1231    sd->dir_priority[3] = fourth;
1232
1233    if (sd->visible) elm_layout_sizing_eval(obj);
1234 }
1235
1236 EAPI void
1237 elm_ctxpopup_direction_priority_get(Evas_Object *obj,
1238                                     Elm_Ctxpopup_Direction *first,
1239                                     Elm_Ctxpopup_Direction *second,
1240                                     Elm_Ctxpopup_Direction *third,
1241                                     Elm_Ctxpopup_Direction *fourth)
1242 {
1243    ELM_CTXPOPUP_CHECK(obj);
1244    ELM_CTXPOPUP_DATA_GET(obj, sd);
1245
1246    if (first) *first = sd->dir_priority[0];
1247    if (second) *second = sd->dir_priority[1];
1248    if (third) *third = sd->dir_priority[2];
1249    if (fourth) *fourth = sd->dir_priority[3];
1250 }
1251
1252 EAPI Elm_Ctxpopup_Direction
1253 elm_ctxpopup_direction_get(const Evas_Object *obj)
1254 {
1255    ELM_CTXPOPUP_CHECK(obj) ELM_CTXPOPUP_DIRECTION_UNKNOWN;
1256    ELM_CTXPOPUP_DATA_GET(obj, sd);
1257
1258    return sd->dir;
1259 }
1260
1261 EAPI void
1262 elm_ctxpopup_dismiss(Evas_Object *obj)
1263 {
1264    ELM_CTXPOPUP_CHECK(obj);
1265    ELM_CTXPOPUP_DATA_GET(obj, sd);
1266
1267    _hide_signals_emit(obj, sd->dir);
1268 }