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efl/src/lib/elementary/elc_combobox.c

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#ifdef HAVE_CONFIG_H
# include "elementary_config.h"
#endif
#define ELM_INTERFACE_ATSPI_ACCESSIBLE_PROTECTED
#define ELM_INTERFACE_ATSPI_WIDGET_ACTION_PROTECTED
#include <Elementary.h>
#include "elm_priv.h"
#include "elm_widget_combobox.h"
#define MY_CLASS ELM_COMBOBOX_CLASS
#define MY_CLASS_NAME "Elm_Combobox"
#define MY_CLASS_NAME_LEGACY "elm_combobox"
static const char SIG_DISMISSED[] = "dismissed";
static const char SIG_EXPANDED[] = "expanded";
static const char SIG_ITEM_SELECTED[] = "item,selected";
static const char SIG_ITEM_PRESSED[] = "item,pressed";
static const char SIG_FILTER_DONE[] = "filter,done";
static const Evas_Smart_Cb_Description _smart_callbacks[] = {
{SIG_DISMISSED, ""},
{SIG_EXPANDED, ""},
{SIG_ITEM_SELECTED, ""},
{SIG_ITEM_PRESSED, ""},
{SIG_FILTER_DONE, ""},
{"clicked", ""}, /**< handled by parent button class */
{SIG_WIDGET_LANG_CHANGED, ""}, /**< handled by elm_widget */
{SIG_WIDGET_ACCESS_CHANGED, ""}, /**< handled by elm_widget */
{NULL, NULL}
};
static Eina_Bool _key_action_move(Evas_Object *obj, const char *params);
static Eina_Bool _key_action_activate(Evas_Object *obj, const char *params);
static const Elm_Action key_actions[] = {
{"activate", _key_action_activate},
{"move", _key_action_move},
{NULL, NULL}
};
EOLIAN static Eina_Bool
_elm_combobox_elm_widget_translate(Eo *obj EINA_UNUSED, Elm_Combobox_Data *sd)
{
elm_obj_widget_translate(eo_super(obj, MY_CLASS));
elm_obj_widget_translate(sd->genlist);
elm_obj_widget_translate(sd->entry);
if (sd->hover)
elm_obj_widget_translate(sd->hover);
return EINA_TRUE;
}
EOLIAN static Elm_Theme_Apply
_elm_combobox_elm_widget_theme_apply(Eo *obj, Elm_Combobox_Data *sd)
{
const char *style;
Elm_Theme_Apply int_ret = ELM_THEME_APPLY_FAILED;
Eina_Bool mirrored;
char buf[128];
ELM_WIDGET_DATA_GET_OR_RETURN(obj, wd, ELM_THEME_APPLY_FAILED);
style = eina_stringshare_add(elm_widget_style_get(obj));
snprintf(buf, sizeof(buf), "combobox_vertical/%s", style);
/* combobox's style has no extra bit for orientation but could have... */
eina_stringshare_replace(&(wd->style), buf);
int_ret = elm_obj_widget_theme_apply(eo_super(obj, MY_CLASS));
if (!int_ret) return ELM_THEME_APPLY_FAILED;
eina_stringshare_replace(&(wd->style), style);
mirrored = elm_widget_mirrored_get(obj);
if (sd->hover)
{
elm_widget_mirrored_set(sd->hover, mirrored);
elm_widget_style_set(sd->hover, buf);
}
elm_widget_mirrored_set(sd->genlist, mirrored);
elm_widget_mirrored_set(sd->entry, mirrored);
elm_widget_style_set(sd->genlist, buf);
elm_widget_style_set(sd->entry, buf);
eina_stringshare_del(style);
return int_ret;
}
static void
_on_hover_clicked(void *data, const Eo_Event *event)
{
const char *dismissstr;
dismissstr = elm_layout_data_get(event->object, "dismiss");
if (!dismissstr || strcmp(dismissstr, "on"))
elm_combobox_hover_end(data); // for backward compatibility
}
static void
_hover_end_finished(void *data,
Evas_Object *obj EINA_UNUSED,
const char *emission EINA_UNUSED,
const char *source EINA_UNUSED)
{
const char *dismissstr;
ELM_COMBOBOX_DATA_GET(data, sd);
dismissstr = elm_layout_data_get(sd->hover, "dismiss");
if (dismissstr && !strcmp(dismissstr, "on"))
{
sd->expanded = EINA_FALSE;
evas_object_hide(sd->hover);
eo_event_callback_call(data, ELM_COMBOBOX_EVENT_DISMISSED, NULL);
}
}
static void
count_items_genlist(void *data)
{
ELM_COMBOBOX_DATA_GET(data, sd);
Eina_Iterator *filter_iter;
int count = 0;
Elm_Object_Item *item;
filter_iter = elm_genlist_filter_iterator_new(sd->genlist);
if (!filter_iter) return;
EINA_ITERATOR_FOREACH(filter_iter, item)
if (item) count++;
sd->count = count;
eina_iterator_free(filter_iter);
}
static void
_table_resize(void *data)
{
ELM_COMBOBOX_DATA_GET(data, sd);
if (sd->count > 0)
{
int hover_parent_w, hover_parent_h, obj_h, obj_w, obj_y, win_y_offset;
int current_height, h;
sd->item = elm_genlist_first_item_get(sd->genlist);
//FIXME:- the height of item is zero, sometimes.
evas_object_geometry_get(elm_object_item_track(sd->item), NULL, NULL,
NULL, &h);
if (h) sd->item_height = h;
evas_object_geometry_get(sd->entry, NULL, NULL, &obj_w, NULL);
evas_object_geometry_get(data, NULL, &obj_y, NULL, &obj_h);
evas_object_geometry_get(sd->hover_parent, NULL, NULL, &hover_parent_w,
&hover_parent_h);
current_height = sd->item_height * sd->count;
sd->best_location = elm_hover_best_content_location_get(sd->hover,
ELM_HOVER_AXIS_VERTICAL);
if (sd->best_location && !strcmp(sd->best_location , "bottom"))
win_y_offset = hover_parent_h - obj_y - obj_h;
else win_y_offset = obj_y;
if (current_height < win_y_offset)
evas_object_size_hint_min_set(sd->spacer, obj_w * elm_config_scale_get(),
current_height + (2 * elm_config_scale_get()));
else evas_object_size_hint_min_set(sd->spacer, obj_w * elm_config_scale_get(),
win_y_offset * elm_config_scale_get());
}
}
static void
_activate(Evas_Object *obj)
{
ELM_COMBOBOX_DATA_GET(obj, sd);
if (elm_widget_disabled_get(obj)) return;
if (sd->expanded)
{
elm_combobox_hover_end(obj);
return;
}
sd->expanded = EINA_TRUE;
count_items_genlist(obj);
if (sd->count <= 0) return;
_table_resize(obj);
elm_object_part_content_set(sd->hover, sd->best_location, sd->tbl);
evas_object_show(sd->genlist);
elm_genlist_item_selected_set(sd->item, EINA_TRUE);
evas_object_show(sd->hover);
eo_event_callback_call(obj, ELM_COMBOBOX_EVENT_EXPANDED, NULL);
}
static void
_on_item_selected(void *data , Evas_Object *obj EINA_UNUSED, void *event)
{
ELM_COMBOBOX_DATA_GET(data, sd);
elm_object_focus_set(sd->entry, EINA_TRUE);
eo_event_callback_call(data, ELM_COMBOBOX_EVENT_ITEM_SELECTED, event);
}
static void
_on_item_pressed(void *data , Evas_Object *obj EINA_UNUSED, void *event)
{
eo_event_callback_call(data, ELM_COMBOBOX_EVENT_ITEM_PRESSED, event);
}
static void
_gl_filter_finished_cb(void *data, const Eo_Event *event)
{
char buf[1024];
ELM_COMBOBOX_DATA_GET(data, sd);
count_items_genlist(data);
if (sd->first_filter)
{
sd->first_filter = EINA_FALSE;
return;
}
eo_event_callback_call(data, ELM_COMBOBOX_EVENT_FILTER_DONE, event->info);
if (sd->count > 0)
{
if (!sd->expanded) _activate(data);
else _table_resize(data);
elm_genlist_item_selected_set(sd->item, EINA_TRUE);
}
else
{
sd->expanded = EINA_FALSE;
elm_layout_signal_emit(sd->hover, "elm,action,hide,no_animate", "elm");
snprintf(buf, sizeof(buf), "elm,action,slot,%s,hide", sd->best_location);
elm_layout_signal_emit(sd->hover, buf, "elm");
edje_object_message_signal_process(elm_layout_edje_get(sd->hover));
}
}
static void
_on_aborted(void *data, const Eo_Event *event EINA_UNUSED)
{
ELM_COMBOBOX_DATA_GET(data, sd);
if (sd->expanded) elm_combobox_hover_end(data);
}
static void
_on_changed(void *data, const Eo_Event *event EINA_UNUSED)
{
eo_event_callback_call(data, ELM_ENTRY_EVENT_CHANGED, NULL);
}
static void
_on_clicked(void *data, const Eo_Event *event EINA_UNUSED)
{
elm_combobox_hover_begin(data);
}
EOLIAN static void
_elm_combobox_efl_canvas_group_group_add(Eo *obj, Elm_Combobox_Data *sd EINA_UNUSED)
{
efl_canvas_group_add(eo_super(obj, MY_CLASS));
elm_widget_sub_object_parent_add(obj);
elm_widget_mirrored_automatic_set(obj, EINA_FALSE);
eo_event_callback_add(obj, EFL_UI_EVENT_CLICKED, _on_clicked, obj);
//What are you doing here?
elm_obj_widget_theme_apply(obj);
}
EOLIAN static void
_elm_combobox_efl_canvas_group_group_del(Eo *obj, Elm_Combobox_Data *sd)
{
sd->hover_parent = NULL;
efl_canvas_group_del(eo_super(obj, MY_CLASS));
}
EOLIAN static void
_elm_combobox_efl_canvas_group_group_show(Eo *obj, Elm_Combobox_Data *sd)
{
efl_canvas_group_show(eo_super(obj, MY_CLASS));
if (sd->expanded) evas_object_show(sd->hover);
}
EOLIAN static void
_elm_combobox_efl_canvas_group_group_hide(Eo *obj, Elm_Combobox_Data *sd)
{
efl_canvas_group_hide(eo_super(obj, MY_CLASS));
if (sd->hover) evas_object_hide(sd->hover);
}
EOLIAN static Eina_Bool
_elm_combobox_elm_button_admits_autorepeat_get(Eo *obj EINA_UNUSED,
Elm_Combobox_Data *sd EINA_UNUSED)
{
return EINA_FALSE;
}
EAPI Evas_Object *
elm_combobox_add(Evas_Object *parent)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
Evas_Object *obj = eo_add(MY_CLASS, parent);
return obj;
}
EOLIAN static Eo *
_elm_combobox_eo_base_constructor(Eo *obj, Elm_Combobox_Data *sd)
{
Evas_Object *gl;
Evas_Object *entry;
char buf[128];
obj = eo_constructor(eo_super(obj, MY_CLASS));
sd->first_filter = EINA_TRUE;
efl_canvas_object_type_set(obj, MY_CLASS_NAME_LEGACY);
evas_object_smart_callbacks_descriptions_set(obj, _smart_callbacks);
elm_interface_atspi_accessible_role_set(obj, ELM_ATSPI_ROLE_GLASS_PANE);
//hover-parent
sd->hover_parent = elm_object_parent_widget_get(obj);
//hover
sd->hover = eo_add(ELM_HOVER_CLASS, sd->hover_parent);
elm_widget_mirrored_automatic_set(sd->hover, EINA_FALSE);
elm_hover_target_set(sd->hover, obj);
elm_widget_sub_object_add(obj, sd->hover);
snprintf(buf, sizeof(buf), "combobox_vertical/%s",
elm_widget_style_get(obj));
elm_object_style_set(sd->hover, buf);
eo_event_callback_add
(sd->hover, EFL_UI_EVENT_CLICKED, _on_hover_clicked, obj);
elm_layout_signal_callback_add
(sd->hover, "elm,action,hide,finished", "elm", _hover_end_finished, obj);
//table
sd->tbl = elm_table_add(obj);
evas_object_size_hint_weight_set(sd->tbl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(sd->tbl, EVAS_HINT_FILL, EVAS_HINT_FILL);
//spacer
sd->spacer = evas_object_rectangle_add(evas_object_evas_get(sd->hover_parent));
evas_object_size_hint_weight_set(sd->spacer, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(sd->spacer, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_color_set(sd->spacer, 0, 0, 0, 0);
elm_table_pack(sd->tbl, sd->spacer, 0, 0, 1, 1);
// This is the genlist object that will take over the genlist call
sd->genlist = gl = eo_add(ELM_GENLIST_CLASS, obj);
elm_genlist_filter_set(gl, NULL);
elm_widget_mirrored_automatic_set(gl, EINA_FALSE);
elm_widget_mirrored_set(gl, elm_widget_mirrored_get(obj));
evas_object_size_hint_weight_set(gl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(gl, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_smart_callback_add(gl, "selected", _on_item_selected, obj);
evas_object_smart_callback_add(gl, "pressed", _on_item_pressed, obj);
eo_event_callback_add(gl, ELM_GENLIST_EVENT_FILTER_DONE, _gl_filter_finished_cb, obj);
elm_genlist_homogeneous_set(gl, EINA_TRUE);
elm_genlist_mode_set(gl, ELM_LIST_COMPRESS);
elm_table_pack(sd->tbl, gl, 0, 0, 1, 1);
elm_object_style_set(gl, buf);
// This is the entry object that will take over the entry call
sd->entry = entry = eo_add(ELM_ENTRY_CLASS, obj);
elm_widget_mirrored_automatic_set(entry, EINA_FALSE);
elm_widget_mirrored_set(entry, elm_widget_mirrored_get(obj));
elm_scroller_policy_set(entry, ELM_SCROLLER_POLICY_OFF,
ELM_SCROLLER_POLICY_OFF);
elm_entry_scrollable_set(entry, EINA_TRUE);
elm_entry_single_line_set(entry, EINA_TRUE);
eo_event_callback_add(entry, ELM_ENTRY_EVENT_CHANGED_USER, _on_changed, obj);
eo_event_callback_add(entry, ELM_ENTRY_EVENT_ABORTED, _on_aborted, obj);
evas_object_show(entry);
elm_object_part_content_set(obj, "elm.swallow.content", entry);
elm_object_style_set(entry, buf);
eo_composite_attach(obj, gl);
eo_composite_attach(obj, entry);
return obj;
}
EOLIAN static void
_elm_combobox_hover_begin(Eo *obj, Elm_Combobox_Data *sd)
{
if (!sd->hover) return;
elm_object_focus_set(sd->entry, EINA_TRUE);
_activate(obj);
}
EOLIAN static void
_elm_combobox_hover_end(Eo *obj, Elm_Combobox_Data *sd)
{
const char *dismissstr;
if (!sd->hover) return;
dismissstr = elm_layout_data_get(sd->hover, "dismiss");
if (dismissstr && !strcmp(dismissstr, "on"))
elm_hover_dismiss(sd->hover);
else
{
sd->expanded = EINA_FALSE;
evas_object_hide(sd->hover);
eo_event_callback_call(obj, ELM_COMBOBOX_EVENT_DISMISSED, NULL);
} // for backward compatibility
}
EOLIAN static Eina_Bool
_elm_combobox_expanded_get(Eo *obj EINA_UNUSED, Elm_Combobox_Data *sd)
{
return sd->expanded;
}
static Eina_Bool
_key_action_move(Evas_Object *obj, const char *params)
{
ELM_COMBOBOX_DATA_GET(obj, sd);
Elm_Object_Item *it = NULL;
const char *dir = params;
if (!sd->hover) return EINA_FALSE;
if (!strcmp(dir, "up"))
{
it = sd->item;
it = elm_genlist_item_prev_get(it);
if (!it) sd->item = elm_genlist_last_item_get(sd->genlist);
else sd->item = it;
elm_genlist_item_selected_set(sd->item, EINA_TRUE);
}
else if (!strcmp(dir, "down"))
{
it = sd->item;
it = elm_genlist_item_next_get(it);
if (!it) sd->item = elm_genlist_first_item_get(sd->genlist);
else sd->item = it;
elm_genlist_item_selected_set(sd->item, EINA_TRUE);
}
else return EINA_FALSE;
return EINA_TRUE;
}
static Eina_Bool
_key_action_activate(Evas_Object *obj, const char *params EINA_UNUSED)
{
ELM_COMBOBOX_DATA_GET(obj, sd);
if (!sd->expanded)
elm_combobox_hover_begin(obj);
else
{
eo_event_callback_call(sd->genlist, EFL_UI_EVENT_PRESSED, sd->item);
elm_entry_cursor_end_set(sd->entry);
}
return EINA_TRUE;
}
EOLIAN static Eina_Bool
_elm_combobox_elm_widget_event(Eo *obj, Elm_Combobox_Data *sd,
Evas_Object *src EINA_UNUSED,
Evas_Callback_Type type, void *event_info)
{
Evas_Event_Key_Down *ev = event_info;
if (!sd || !sd->hover) return EINA_FALSE;
if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
if (!_elm_config_key_binding_call(obj, MY_CLASS_NAME, ev, key_actions))
return EINA_FALSE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
static void
_elm_combobox_class_constructor(Eo_Class *klass)
{
evas_smart_legacy_type_register(MY_CLASS_NAME_LEGACY, klass);
}
EOLIAN const Elm_Atspi_Action *
_elm_combobox_elm_interface_atspi_widget_action_elm_actions_get(Eo *obj EINA_UNUSED,
Elm_Combobox_Data *pd
EINA_UNUSED)
{
static Elm_Atspi_Action atspi_actions[] = {
{"activate", "activate", "return", _key_action_activate},
{"move,up", "move", "up", _key_action_move},
{"move,down", "move", "down", _key_action_move},
{NULL, NULL, NULL, NULL}
};
return &atspi_actions[0];
}
EOLIAN void
_elm_combobox_elm_genlist_filter_set(Eo *obj EINA_UNUSED, Elm_Combobox_Data *pd, void *key)
{
pd->first_filter = EINA_FALSE;
elm_obj_genlist_filter_set(pd->genlist, key);
}
EOLIAN void
_elm_combobox_elm_widget_part_text_set(Eo *obj EINA_UNUSED, Elm_Combobox_Data *pd,
const char * part, const char *label)
{
elm_object_part_text_set(pd->entry, part, label);
}
EOLIAN const char *
_elm_combobox_elm_widget_part_text_get(Eo *obj EINA_UNUSED, Elm_Combobox_Data *pd,
const char * part)
{
return elm_object_part_text_get(pd->entry, part);
}
EOLIAN static void
_elm_combobox_efl_canvas_group_group_resize(Eo *obj, Elm_Combobox_Data *pd,
Evas_Coord w, Evas_Coord h)
{
efl_canvas_group_resize(eo_super(obj, MY_CLASS), w, h);
if (pd->count > 0) _table_resize(obj);
}
#include "elm_combobox.eo.c"
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