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Gengrid with keyboard scroller 

Author:    Helen Fornazier <helen.fornazier@profusion.mobi>

Keys:
up
kp_up
down
kp_down
left
kp_left
right
kp_right
Page Up
Page Down
Home
End

p.s.: kp = key pad

SVN revision: 52964
This commit is contained in:
Tiago Rezende Campos Falcao 2010-10-01 19:03:17 +00:00
parent bb5b808b76
commit dbab55ebaa
1 changed files with 99 additions and 0 deletions
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99
legacy/elementary/src/lib/elm_gengrid.c
View File

@ -215,9 +215,106 @@ static void _item_hilight(Elm_Gengrid_Item *item);
static void _item_unrealize(Elm_Gengrid_Item *item);
static void _item_select(Elm_Gengrid_Item *item);
static void _item_unselect(Elm_Gengrid_Item *item);
static void _on_focus_hook(void *data, Evas_Object *obj);
static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
Evas_Callback_Type type, void *event_info);
static Evas_Smart_Class _pan_sc = EVAS_SMART_CLASS_INIT_VERSION;
static Eina_Bool
_event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
{
if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
Evas_Event_Key_Down *ev = event_info;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
if (elm_widget_disabled_get(obj)) return EINA_FALSE;
Elm_Gengrid_Item *it = NULL;
Evas_Coord x = 0;
Evas_Coord y = 0;
Evas_Coord step_x = 0;
Evas_Coord step_y = 0;
Evas_Coord v_w = 0;
Evas_Coord v_h = 0;
Evas_Coord page_x = 0;
Evas_Coord page_y = 0;
elm_smart_scroller_child_pos_get(wd->scr, &x, &y);
elm_smart_scroller_step_size_get(wd->scr, &step_x, &step_y);
elm_smart_scroller_page_size_get(wd->scr, &page_x, &page_y);
elm_smart_scroller_child_viewport_size_get(wd->scr, &v_w, &v_h);
if (!strcmp(ev->keyname, "Left") || !strcmp(ev->keyname, "KP_Left"))
{
x -= step_x;
}
else if (!strcmp(ev->keyname, "Right") || !strcmp(ev->keyname, "KP_Right"))
{
x += step_x;
}
else if (!strcmp(ev->keyname, "Up") || !strcmp(ev->keyname, "KP_Up"))
{
y -= step_y;
}
else if (!strcmp(ev->keyname, "Down") || !strcmp(ev->keyname, "KP_Down"))
{
y += step_y;
}
else if (!strcmp(ev->keyname, "Home"))
{
it = eina_list_data_get(wd->items);
elm_gengrid_item_bring_in(it);
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
else if (!strcmp(ev->keyname, "End"))
{
Eina_List *l = eina_list_last(wd->items);
it = eina_list_data_get(l);
elm_gengrid_item_bring_in(it);
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
else if (!strcmp(ev->keyname, "Prior"))
{
if (page_y < 0)
y -= -(page_y * v_h) / 100;
else
y -= page_y;
}
else if (!strcmp(ev->keyname, "Next"))
{
if (page_y < 0)
y += -(page_y * v_h) / 100;
else
y += page_y;
}
else return EINA_FALSE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
elm_smart_scroller_child_pos_set(wd->scr, x, y);
return EINA_TRUE;
}
static void
_on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (elm_widget_focus_get(obj))
{
edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
evas_object_focus_set(wd->self, EINA_TRUE);
}
else
{
edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
evas_object_focus_set(wd->self, EINA_FALSE);
}
}
static void
_theme_hook(Evas_Object *obj)
{
@ -973,12 +1070,14 @@ elm_gengrid_add(Evas_Object *parent)
ELM_SET_WIDTYPE(widtype, "gengrid");
elm_widget_type_set(obj, "gengrid");
elm_widget_sub_object_add(parent, obj);
elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_del_pre_hook_set(obj, _del_pre_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
elm_widget_can_focus_set(obj, EINA_TRUE);
elm_widget_event_hook_set(obj, _event_hook);
wd->scr = elm_smart_scroller_add(e);
elm_smart_scroller_widget_set(wd->scr, obj);