1 #include <Elementary.h>
5 * @defgroup Scroller Scroller
7 * A scroller holds a single object and "scrolls it around". This means that
8 * it allows the user to use a scrollbar (or a finger) to drag the viewable
9 * region around, allowing to move through a much larger object that is
10 * contained in the scroller. The scroiller will always have a small minimum
11 * size by default as it won't be limited by the contents of the scroller.
13 * Signals that you can add callbacks for are:
15 * edge,left - the left edge of the content has been reached
17 * edge,right - the right edge of the content has been reached
19 * edge,top - the top edge of the content has been reached
21 * edge,bottom - the bottom edge of the content has been reached
23 * scroll - the content has been scrolled (moved)
25 * scroll,anim,start - scrolling animation has started
27 * scroll,anim,stop - scrolling animation has stopped
29 * scroll,drag,start - dragging the contents around has started
31 * scroll,drag,stop - dragging the contents around has stopped
33 typedef struct _Widget_Data Widget_Data;
39 const char *widget_name, *widget_base;
42 double pagerel_h, pagerel_v;
43 Evas_Coord pagesize_h, pagesize_v;
46 static const char *widtype = NULL;
47 static void _del_hook(Evas_Object *obj);
48 static void _theme_hook(Evas_Object *obj);
49 static void _show_region_hook(void *data, Evas_Object *obj);
50 static void _sizing_eval(Evas_Object *obj);
51 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
52 static void _on_focus_hook(void *data, Evas_Object *obj);
53 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
54 Evas_Callback_Type type, void *event_info);
57 static const char SIG_SCROLL[] = "scroll";
58 static const char SIG_SCROLL_ANIM_START[] = "scroll,anim,start";
59 static const char SIG_SCROLL_ANIM_STOP[] = "scroll,anim,stop";
60 static const char SIG_SCROLL_DRAG_START[] = "scroll,drag,start";
61 static const char SIG_SCROLL_DRAG_STOP[] = "scroll,drag,stop";
62 static const char SIG_EDGE_LEFT[] = "edge,left";
63 static const char SIG_EDGE_RIGHT[] = "edge,right";
64 static const char SIG_EDGE_TOP[] = "edge,top";
65 static const char SIG_EDGE_BOTTOM[] = "edge,bottom";
66 static const Evas_Smart_Cb_Description _signals[] = {
68 {SIG_SCROLL_ANIM_START, ""},
69 {SIG_SCROLL_ANIM_STOP, ""},
70 {SIG_SCROLL_DRAG_START, ""},
71 {SIG_SCROLL_DRAG_STOP, ""},
75 {SIG_EDGE_BOTTOM, ""},
80 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
82 if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
83 Evas_Event_Key_Down *ev = event_info;
84 Widget_Data *wd = elm_widget_data_get(obj);
85 if (!wd) return EINA_FALSE;
86 if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
87 if (elm_widget_disabled_get(obj)) return EINA_FALSE;
91 Evas_Coord step_x = 0;
92 Evas_Coord step_y = 0;
97 Evas_Coord page_x = 0;
98 Evas_Coord page_y = 0;
100 elm_smart_scroller_child_pos_get(wd->scr, &x, &y);
101 elm_smart_scroller_step_size_get(wd->scr, &step_x, &step_y);
102 elm_smart_scroller_page_size_get(wd->scr, &page_x, &page_y);
103 elm_smart_scroller_child_viewport_size_get(wd->scr, &v_w, &v_h);
104 elm_scroller_child_size_get(obj, &max_x, &max_y);
106 if ((!strcmp(ev->keyname, "Left")) || (!strcmp(ev->keyname, "KP_Left")))
110 else if ((!strcmp(ev->keyname, "Right")) || (!strcmp(ev->keyname, "KP_Right")))
114 else if ((!strcmp(ev->keyname, "Up")) || (!strcmp(ev->keyname, "KP_Up")))
118 else if ((!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
122 else if ((!strcmp(ev->keyname, "Home")) || (!strcmp(ev->keyname, "KP_Home")))
126 else if ((!strcmp(ev->keyname, "End")) || (!strcmp(ev->keyname, "KP_End")))
130 else if ((!strcmp(ev->keyname, "Prior")) || (!strcmp(ev->keyname, "KP_Prior")))
133 y -= -(page_y * v_h) / 100;
137 else if ((!strcmp(ev->keyname, "Next")) || (!strcmp(ev->keyname, "KP_Next")))
140 y += -(page_y * v_h) / 100;
144 else return EINA_FALSE;
146 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
147 elm_smart_scroller_child_pos_set(wd->scr, x, y);
152 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
154 Widget_Data *wd = elm_widget_data_get(obj);
156 if (elm_widget_focus_get(obj))
158 edje_object_signal_emit(wd->scr, "elm,action,focus", "elm");
159 evas_object_focus_set(wd->scr, EINA_TRUE);
163 edje_object_signal_emit(wd->scr, "elm,action,unfocus", "elm");
164 evas_object_focus_set(wd->scr, EINA_FALSE);
169 _del_hook(Evas_Object *obj)
171 Widget_Data *wd = elm_widget_data_get(obj);
177 _theme_hook(Evas_Object *obj)
179 Widget_Data *wd = elm_widget_data_get(obj);
186 elm_smart_scroller_object_theme_set(obj, wd->scr,
187 wd->widget_name, wd->widget_base,
188 elm_widget_style_get(obj));
189 // edje_object_scale_set(wd->scr, elm_widget_scale_get(obj) * _elm_config->scale);
190 edj = elm_smart_scroller_edje_object_get(wd->scr);
191 str = edje_object_data_get(edj, "focus_highlight");
192 if ((str) && (!strcmp(str, "on")))
193 elm_widget_highlight_in_theme_set(obj, EINA_TRUE);
195 elm_widget_highlight_in_theme_set(obj, EINA_FALSE);
201 _elm_scroller_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
203 Widget_Data *wd = elm_widget_data_get(obj);
206 if ((!wd) || (!wd->content))
211 /* Try Focus cycle in subitem */
212 if ((elm_widget_can_focus_get(cur)) || (elm_widget_child_can_focus_get(cur)))
213 return elm_widget_focus_next_get(cur, dir, next);
216 *next = (Evas_Object *)obj;
217 return !elm_widget_focus_get(obj);
221 _signal_emit_hook(Evas_Object *obj, const char *emission, const char *source)
223 Widget_Data *wd = elm_widget_data_get(obj);
225 edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
230 _signal_callback_add_hook(Evas_Object *obj, const char *emission, const char *source, void (*func_cb) (void *data, Evas_Object *o, const char *emission, const char *source), void *data)
232 Widget_Data *wd = elm_widget_data_get(obj);
234 edje_object_signal_callback_add(elm_smart_scroller_edje_object_get(wd->scr),
235 emission, source, func_cb, data);
239 _signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *source, void (*func_cb) (void *data, Evas_Object *o, const char *emission, const char *source), void *data)
241 Widget_Data *wd = elm_widget_data_get(obj);
242 edje_object_signal_callback_del_full(
243 elm_smart_scroller_edje_object_get(wd->scr), emission, source,
248 _show_region_hook(void *data, Evas_Object *obj)
250 Widget_Data *wd = elm_widget_data_get(data);
251 Evas_Coord x, y, w, h;
253 elm_widget_show_region_get(obj, &x, &y, &w, &h);
255 elm_smart_scroller_child_region_show(wd->scr, x, y, w, h);
259 _focus_region_hook(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
261 Widget_Data *wd = elm_widget_data_get(obj);
263 elm_smart_scroller_child_region_show(wd->scr, x, y, w, h);
267 _sizing_eval(Evas_Object *obj)
269 Widget_Data *wd = elm_widget_data_get(obj);
270 Evas_Coord vw, vh, minw, minh, maxw, maxh, w, h, vmw, vmh;
274 evas_object_size_hint_min_get(wd->content, &minw, &minh);
275 evas_object_size_hint_max_get(wd->content, &maxw, &maxh);
276 evas_object_size_hint_weight_get(wd->content, &xw, &yw);
279 elm_smart_scroller_child_viewport_size_get(wd->scr, &vw, &vh);
282 if ((minw > 0) && (vw < minw)) vw = minw;
283 else if ((maxw > 0) && (vw > maxw)) vw = maxw;
285 else if (minw > 0) vw = minw;
288 if ((minh > 0) && (vh < minh)) vh = minh;
289 else if ((maxh > 0) && (vh > maxh)) vh = maxh;
291 else if (minh > 0) vh = minh;
292 evas_object_resize(wd->content, vw, vh);
295 edje_object_size_min_calc(elm_smart_scroller_edje_object_get(wd->scr), &vmw, &vmh);
296 if (wd->min_w) w = vmw + minw;
297 if (wd->min_h) h = vmh + minh;
298 evas_object_size_hint_max_get(obj, &maxw, &maxh);
299 if ((maxw > 0) && (w > maxw)) w = maxw;
300 if ((maxh > 0) && (h > maxh)) h = maxh;
301 evas_object_size_hint_min_set(obj, w, h);
306 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
312 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
314 Widget_Data *wd = elm_widget_data_get(obj);
315 Evas_Object *sub = event_info;
318 if (sub == wd->content)
320 elm_widget_on_show_region_hook_set(wd->content, NULL, NULL);
321 evas_object_event_callback_del_full (sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
322 _changed_size_hints, obj);
326 else if (sub == wd->scr)
331 _hold_on(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
333 Widget_Data *wd = elm_widget_data_get(obj);
337 elm_smart_scroller_hold_set(wd->scr, 1);
341 _hold_off(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
343 Widget_Data *wd = elm_widget_data_get(obj);
347 elm_smart_scroller_hold_set(wd->scr, 0);
351 _freeze_on(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
353 Widget_Data *wd = elm_widget_data_get(obj);
357 elm_smart_scroller_freeze_set(wd->scr, 1);
361 _freeze_off(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
363 Widget_Data *wd = elm_widget_data_get(obj);
367 elm_smart_scroller_freeze_set(wd->scr, 0);
371 _resize(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
377 _edge_left(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
379 evas_object_smart_callback_call(data, SIG_EDGE_LEFT, NULL);
383 _edge_right(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
385 evas_object_smart_callback_call(data, SIG_EDGE_RIGHT, NULL);
389 _edge_top(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
391 evas_object_smart_callback_call(data, SIG_EDGE_TOP, NULL);
395 _edge_bottom(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
397 evas_object_smart_callback_call(data, SIG_EDGE_BOTTOM, NULL);
401 _scroll(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
403 evas_object_smart_callback_call(data, SIG_SCROLL, NULL);
407 _scroll_anim_start(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
409 evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_START, NULL);
413 _scroll_anim_stop(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
415 evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_STOP, NULL);
419 _scroll_drag_start(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
421 evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_START, NULL);
425 _scroll_drag_stop(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
427 evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_STOP, NULL);
431 * Add a new scroller to the parent
433 * @param parent The parent object
434 * @return The new object or NULL if it cannot be created
439 elm_scroller_add(Evas_Object *parent)
444 Evas_Coord minw, minh;
446 EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
448 wd = ELM_NEW(Widget_Data);
449 e = evas_object_evas_get(parent);
451 obj = elm_widget_add(e);
452 ELM_SET_WIDTYPE(widtype, "scroller");
453 elm_widget_type_set(obj, "scroller");
454 elm_widget_sub_object_add(parent, obj);
455 elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
456 elm_widget_data_set(obj, wd);
457 elm_widget_del_hook_set(obj, _del_hook);
458 elm_widget_theme_hook_set(obj, _theme_hook);
459 elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
460 elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
461 elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
462 elm_widget_focus_next_hook_set(obj, _elm_scroller_focus_next_hook);
463 elm_widget_can_focus_set(obj, EINA_TRUE);
464 elm_widget_event_hook_set(obj, _event_hook);
465 elm_widget_focus_region_hook_set(obj, _focus_region_hook);
467 wd->widget_name = eina_stringshare_add("scroller");
468 wd->widget_base = eina_stringshare_add("base");
470 wd->scr = elm_smart_scroller_add(e);
471 elm_smart_scroller_widget_set(wd->scr, obj);
473 elm_widget_resize_object_set(obj, wd->scr);
474 evas_object_event_callback_add(wd->scr, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
475 _changed_size_hints, obj);
477 edje_object_size_min_calc(elm_smart_scroller_edje_object_get(wd->scr), &minw, &minh);
478 evas_object_size_hint_min_set(obj, minw, minh);
479 evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, obj);
481 evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
482 evas_object_smart_callback_add(obj, "scroll-hold-on", _hold_on, obj);
483 evas_object_smart_callback_add(obj, "scroll-hold-off", _hold_off, obj);
484 evas_object_smart_callback_add(obj, "scroll-freeze-on", _freeze_on, obj);
485 evas_object_smart_callback_add(obj, "scroll-freeze-off", _freeze_off, obj);
487 evas_object_smart_callback_add(wd->scr, "edge,left", _edge_left, obj);
488 evas_object_smart_callback_add(wd->scr, "edge,right", _edge_right, obj);
489 evas_object_smart_callback_add(wd->scr, "edge,top", _edge_top, obj);
490 evas_object_smart_callback_add(wd->scr, "edge,bottom", _edge_bottom, obj);
491 evas_object_smart_callback_add(wd->scr, "scroll", _scroll, obj);
492 evas_object_smart_callback_add(wd->scr, "animate,start", _scroll_anim_start, obj);
493 evas_object_smart_callback_add(wd->scr, "animate,stop", _scroll_anim_stop, obj);
494 evas_object_smart_callback_add(wd->scr, "drag,start", _scroll_drag_start, obj);
495 evas_object_smart_callback_add(wd->scr, "drag,stop", _scroll_drag_stop, obj);
499 // TODO: convert Elementary to subclassing of Evas_Smart_Class
500 // TODO: and save some bytes, making descriptions per-class and not instance!
501 evas_object_smart_callbacks_descriptions_set(obj, _signals);
506 _elm_scroller_edje_object_get(Evas_Object *obj)
508 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
509 Widget_Data *wd = elm_widget_data_get(obj);
510 if (!wd) return NULL;
511 return elm_smart_scroller_edje_object_get(wd->scr);
515 * Set the content of the scroller widget (the object to be scrolled around).
517 * Once the content object is set, a previously set one will be deleted.
518 * If you want to keep that old content object, use the
519 * elm_scroller_content_unset() function.
521 * @param obj The scroller object
522 * @param content The new content object
527 elm_scroller_content_set(Evas_Object *obj, Evas_Object *content)
529 ELM_CHECK_WIDTYPE(obj, widtype);
530 Widget_Data *wd = elm_widget_data_get(obj);
532 if (wd->content == content) return;
533 if (wd->content) evas_object_del(wd->content);
534 wd->content = content;
537 elm_widget_on_show_region_hook_set(content, _show_region_hook, obj);
538 elm_widget_sub_object_add(obj, content);
540 elm_smart_scroller_child_set(wd->scr, content);
541 evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
542 _changed_size_hints, obj);
548 * Get the content of the scroller widget
550 * Return the content object which is set for this widget
552 * @param obj The slider object
553 * @return The content that is being used
558 elm_scroller_content_get(const Evas_Object *obj)
560 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
561 Widget_Data *wd = elm_widget_data_get(obj);
562 if (!wd) return NULL;
567 * Unset the content of the scroller widget
569 * Unparent and return the content object which was set for this widget
571 * @param obj The slider object
572 * @return The content that was being used
577 elm_scroller_content_unset(Evas_Object *obj)
579 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
580 Widget_Data *wd = elm_widget_data_get(obj);
581 Evas_Object *content;
582 if (!wd) return NULL;
583 if (!wd->content) return NULL;
584 content = wd->content;
585 elm_widget_sub_object_del(obj, wd->content);
586 edje_object_part_unswallow(wd->scr, wd->content);
592 * Set custom theme elements for the scroller
594 * @param obj The scroller object
595 * @param widget The widget name to use (default is "scroller")
596 * @param base The base name to use (default is "base")
601 elm_scroller_custom_widget_base_theme_set(Evas_Object *obj, const char *widget, const char *base)
603 ELM_CHECK_WIDTYPE(obj, widtype);
604 Widget_Data *wd = elm_widget_data_get(obj);
606 EINA_SAFETY_ON_NULL_RETURN(widget);
607 EINA_SAFETY_ON_NULL_RETURN(base);
608 if (eina_stringshare_replace(&wd->widget_name, widget) |
609 eina_stringshare_replace(&wd->widget_base, base))
614 * Make the scroller minimum size limited to the minimum size of the content
616 * By default the scroller will be as small as its design allows, irrespective
617 * of its content. This will make the scroller minimum size the right size
618 * horizontally and/or vertically to perfectly fit its content.
620 * @param obj The scroller object
621 * @param w Enable limiting minimum size horizontally
622 * @param h Enable limiting minimum size vertically
627 elm_scroller_content_min_limit(Evas_Object *obj, Eina_Bool w, Eina_Bool h)
629 ELM_CHECK_WIDTYPE(obj, widtype);
630 Widget_Data *wd = elm_widget_data_get(obj);
638 * Show a specific virtual region within the scroller content object
640 * This will ensure all (or part if it does not fit) of the designated
641 * region in the virtual content object (0, 0 starting at the top-left of the
642 * virtual content object) is shown within the scroller.
644 * @param obj The scroller object
645 * @param x X coordinate of the region
646 * @param y Y coordinate of the region
647 * @param w Width of the region
648 * @param h Height of the region
653 elm_scroller_region_show(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
655 ELM_CHECK_WIDTYPE(obj, widtype);
656 Widget_Data *wd = elm_widget_data_get(obj);
657 if ((!wd) || (!wd->scr)) return;
658 elm_smart_scroller_child_region_show(wd->scr, x, y, w, h);
662 * Set the scroller scrollbar policy
664 * This sets the scrollbar visibility policy for the given scroller.
665 * ELM_SMART_SCROLLER_POLICY_AUTO means the scrollber is made visible if it
666 * is needed, and otherwise kept hidden. ELM_SMART_SCROLLER_POLICY_ON turns
667 * it on all the time, and ELM_SMART_SCROLLER_POLICY_OFF always keeps it off.
668 * This applies respectively for the horizontal and vertical scrollbars.
670 * @param obj The scroller object
671 * @param policy_h Horizontal scrollbar policy
672 * @param policy_v Vertical scrollbar policy
677 elm_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
679 ELM_CHECK_WIDTYPE(obj, widtype);
680 Widget_Data *wd = elm_widget_data_get(obj);
681 const Elm_Scroller_Policy map[3] =
683 ELM_SMART_SCROLLER_POLICY_AUTO,
684 ELM_SMART_SCROLLER_POLICY_ON,
685 ELM_SMART_SCROLLER_POLICY_OFF
687 if ((!wd) || (!wd->scr)) return;
688 if ((policy_h >= 3) || (policy_v >= 3)) return;
689 elm_smart_scroller_policy_set(wd->scr, map[policy_h], map[policy_v]);
693 elm_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
695 ELM_CHECK_WIDTYPE(obj, widtype);
696 Widget_Data *wd = elm_widget_data_get(obj);
697 if ((!wd) || (!wd->scr)) return;
698 elm_smart_scroller_policy_get(wd->scr,
699 (Elm_Smart_Scroller_Policy *) policy_h,
700 (Elm_Smart_Scroller_Policy *) policy_v);
704 * Get the currently visible content region
706 * This gets the current region in the content object that is visible through
707 * the scroller. Also see elm_scroller_region_show(). The region co-ordinates
708 * are returned in the @p x, @p y, @p w, @p h values pointed to.
710 * @param obj The scroller object
711 * @param x X coordinate of the region
712 * @param y Y coordinate of the region
713 * @param w Width of the region
714 * @param h Height of the region
719 elm_scroller_region_get(const Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
721 ELM_CHECK_WIDTYPE(obj, widtype);
722 Widget_Data *wd = elm_widget_data_get(obj);
723 if ((!wd) || (!wd->scr)) return;
724 if ((x) || (y)) elm_smart_scroller_child_pos_get(wd->scr, x, y);
725 if ((w) || (h)) elm_smart_scroller_child_viewport_size_get(wd->scr, w, h);
729 * Get the size of the content child object
731 * This gets the size of the child object of the scroller. Actually the
732 * content of a scroller doesn't specifically need to be an actual object
733 * as it can be virtual and defined purely by callbacks.
735 * @param obj The scroller object
736 * @param w Width return
737 * @param h Height return
742 elm_scroller_child_size_get(const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
744 ELM_CHECK_WIDTYPE(obj, widtype);
745 Widget_Data *wd = elm_widget_data_get(obj);
747 evas_object_geometry_get(wd->content, NULL, NULL, w, h);
751 * Set bouncing behavior
753 * When scrolling, the scroller may "bounce" when reaching an edge of the child
754 * object. This is a visual way to indicate the end has been reached. This is
755 * enabled by default for both axes. This will set if it is enabled for that
756 * axis with the boolean parameters for each axis.
758 * @param obj The scroller object
759 * @param h_bounce Will the scroller bounce horizontally or not
760 * @param v_bounce Will the scroller bounce vertically or not
765 elm_scroller_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
767 ELM_CHECK_WIDTYPE(obj, widtype);
768 Widget_Data *wd = elm_widget_data_get(obj);
769 if ((!wd) || (!wd->scr)) return;
770 elm_smart_scroller_bounce_allow_set(wd->scr, h_bounce, v_bounce);
774 * Get the bounce mode
776 * @param obj The Scroller object
777 * @param h_bounce Allow bounce horizontally
778 * @param v_bounce Allow bounce vertically
783 elm_scroller_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
785 ELM_CHECK_WIDTYPE(obj, widtype);
786 Widget_Data *wd = elm_widget_data_get(obj);
788 elm_smart_scroller_bounce_allow_get(wd->scr, h_bounce, v_bounce);
792 * Set scroll page size relative to viewport size.
794 * The scroller is capable of limiting scrolling by the user to "pages". That
795 * is to jump by and only show a "whole page" at a time as if the continuous
796 * area of the scroller content is split into page sized pieces. This sets
797 * the size of a page relative to the viewport of the scroller. 1.0 is "1
798 * viewport" is size (horizontally or vertically). 0.0 turns it off in that
799 * axis. This is mutually exclusive with page size
800 * (see elm_scroller_page_size_set() for more information). Likewise 0.5
801 * is "half a viewport". Sane usable valus are normally between 0.0 and 1.0
802 * including 1.0. If you only want 1 axis to be page "limited", use 0.0 for
805 * @param obj The scroller object
806 * @param h_pagerel The horizontal page relative size
807 * @param v_pagerel The vertical page relative size
812 elm_scroller_page_relative_set(Evas_Object *obj, double h_pagerel, double v_pagerel)
814 ELM_CHECK_WIDTYPE(obj, widtype);
815 Widget_Data *wd = elm_widget_data_get(obj);
817 wd->pagerel_h = h_pagerel;
818 wd->pagerel_v = v_pagerel;
820 elm_smart_scroller_paging_set(wd->scr, wd->pagerel_h, wd->pagerel_v,
821 wd->pagesize_h, wd->pagesize_v);
825 * Set scroll page size.
827 * See also elm_scroller_page_relative_set(). This, instead of a page size
828 * being relative to the viewport, sets it to an absolute fixed value, with
829 * 0 turning it off for that axis.
831 * @param obj The scroller object
832 * @param h_pagesize The horizontal page size
833 * @param v_pagesize The vertical page size
838 elm_scroller_page_size_set(Evas_Object *obj, Evas_Coord h_pagesize, Evas_Coord v_pagesize)
840 ELM_CHECK_WIDTYPE(obj, widtype);
841 Widget_Data *wd = elm_widget_data_get(obj);
843 wd->pagesize_h = h_pagesize;
844 wd->pagesize_v = v_pagesize;
846 elm_smart_scroller_paging_set(wd->scr, wd->pagerel_h, wd->pagerel_v,
847 wd->pagesize_h, wd->pagesize_v);
851 * Show a specific virtual region within the scroller content object.
853 * This will ensure all (or part if it does not fit) of the designated
854 * region in the virtual content object (0, 0 starting at the top-left of the
855 * virtual content object) is shown within the scroller. Unlike
856 * elm_scroller_region_show(), this allow the scroller to "smoothly slide"
857 * to this location (if configuration in general calls for transitions). It
858 * may not jump immediately to the new location and make take a while and
859 * show other content along the way.
861 * @param obj The scroller object
862 * @param x X coordinate of the region
863 * @param y Y coordinate of the region
864 * @param w Width of the region
865 * @param h Height of the region
870 elm_scroller_region_bring_in(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
872 ELM_CHECK_WIDTYPE(obj, widtype);
873 Widget_Data *wd = elm_widget_data_get(obj);
874 if ((!wd) || (!wd->scr)) return;
875 elm_smart_scroller_region_bring_in(wd->scr, x, y, w, h);
880 * Set event propagation on a scroller
882 * This enables or disabled event propagation from the scroller content to
883 * the scroller and its parent. By default event propagation is disabled.
885 * @param obj The scroller object
886 * @param propagation If propagation is enabled or not
891 elm_scroller_propagate_events_set(Evas_Object *obj, Eina_Bool propagation)
893 ELM_CHECK_WIDTYPE(obj, widtype);
894 Widget_Data *wd = elm_widget_data_get(obj);
897 evas_object_propagate_events_set(wd->scr, propagation);
901 * Get event propagation for a scroller
903 * This gets the event propagation for a scroller. See
904 * elm_scroller_propagate_events_set() for more information
906 * @param obj The scroller object
907 * @return The propagation state
912 elm_scroller_propagate_events_get(const Evas_Object *obj)
914 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
915 Widget_Data *wd = elm_widget_data_get(obj);
916 if (!wd) return EINA_FALSE;
918 return evas_object_propagate_events_get(wd->scr);