507 lines
15 KiB
C
507 lines
15 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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/**
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* @defgroup Toggle
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*
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* A toggle is a slider which can be used to toggle between
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* two values. It has two states: on and off.
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*
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* Signals that you can add callbacks for are:
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*
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* "changed" - Whenever the toggle value has been changed. Is not called until
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* the toggle is released by the cursor (assuming it has been
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* triggered by the cursor in the first place).
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*/
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typedef struct _Widget_Data Widget_Data;
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struct _Widget_Data
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{
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Evas_Object *tgl;
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Evas_Object *icon;
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Eina_Bool state;
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Eina_Bool *statep;
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const char *label;
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const char *ontext, *offtext;
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};
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static const char *widtype = NULL;
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static void _del_hook(Evas_Object *obj);
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static void _disable_hook(Evas_Object *obj);
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static void _theme_hook(Evas_Object *obj);
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static void _sizing_eval(Evas_Object *obj);
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static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _sub_del(void *data, Evas_Object *obj, void *event_info);
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static void _signal_toggle_off(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _signal_toggle_on(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _on_focus_hook(void *data, Evas_Object *obj);
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static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
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Evas_Callback_Type type, void *event_info);
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static const char SIG_CHANGED[] = "changed";
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static const Evas_Smart_Cb_Description _signals[] = {
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{SIG_CHANGED, ""},
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{NULL, NULL}
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};
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static Eina_Bool
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_event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
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{
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if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
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Evas_Event_Key_Down *ev = event_info;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return EINA_FALSE;
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if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
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if (elm_widget_disabled_get(obj)) return EINA_FALSE;
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if ((strcmp(ev->keyname, "Return")) &&
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(strcmp(ev->keyname, "KP_Enter")) &&
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(strcmp(ev->keyname, "space")))
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return EINA_FALSE;
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elm_toggle_state_set(obj, !wd->state);
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evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
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ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
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return EINA_TRUE;
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}
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static void
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_del_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (wd->label) eina_stringshare_del(wd->label);
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if (wd->ontext) eina_stringshare_del(wd->ontext);
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if (wd->offtext) eina_stringshare_del(wd->offtext);
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free(wd);
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}
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static void
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_disable_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (elm_widget_disabled_get(obj))
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edje_object_signal_emit(wd->tgl, "elm,state,disabled", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,enabled", "elm");
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}
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static void
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_on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (elm_widget_focus_get(obj))
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{
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edje_object_signal_emit(wd->tgl, "elm,action,focus", "elm");
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evas_object_focus_set(wd->tgl, EINA_TRUE);
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}
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else
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{
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edje_object_signal_emit(wd->tgl, "elm,action,unfocus", "elm");
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evas_object_focus_set(wd->tgl, EINA_FALSE);
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}
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}
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static void
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_mirrored_set(Evas_Object *obj, Eina_Bool rtl)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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edje_object_mirrored_set(wd->tgl, rtl);
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}
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static void
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_theme_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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_elm_widget_mirrored_reload(obj);
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_mirrored_set(obj, elm_widget_mirrored_get(obj));
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_elm_theme_object_set(obj, wd->tgl, "toggle", "base", elm_widget_style_get(obj));
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if (wd->icon)
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edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
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if (wd->state)
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edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
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if (wd->label)
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edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
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edje_object_part_text_set(wd->tgl, "elm.text", wd->label);
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edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
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edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
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if (elm_widget_disabled_get(obj))
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edje_object_signal_emit(wd->tgl, "elm,state,disabled", "elm");
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edje_object_message_signal_process(wd->tgl);
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edje_object_scale_set(wd->tgl, elm_widget_scale_get(obj) * _elm_config->scale);
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_sizing_eval(obj);
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}
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static void
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_sizing_eval(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Coord minw = -1, minh = -1;
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if (!wd) return;
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elm_coords_finger_size_adjust(1, &minw, 1, &minh);
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edje_object_size_min_restricted_calc(wd->tgl, &minw, &minh, minw, minh);
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elm_coords_finger_size_adjust(1, &minw, 1, &minh);
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evas_object_size_hint_min_set(obj, minw, minh);
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evas_object_size_hint_max_set(obj, -1, -1);
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}
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static void
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_changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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if (!wd) return;
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if (obj != wd->icon) return;
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_sizing_eval(data);
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}
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static void
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_sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Object *sub = event_info;
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if (!wd) return;
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if (sub == wd->icon)
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{
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edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
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evas_object_event_callback_del_full
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(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
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wd->icon = NULL;
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edje_object_message_signal_process(wd->tgl);
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_sizing_eval(obj);
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}
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}
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static void
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_signal_toggle_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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if (!wd) return;
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wd->state = 0;
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if (wd->statep) *wd->statep = wd->state;
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evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
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}
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static void
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_signal_toggle_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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if (!wd) return;
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wd->state = 1;
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if (wd->statep) *wd->statep = wd->state;
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evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
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}
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static void
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_elm_toggle_label_set(Evas_Object *obj, const char *item, const char *label)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (item && strcmp(item, "default")) return;
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if (!wd) return;
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eina_stringshare_replace(&wd->label, label);
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if (label)
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edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
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edje_object_message_signal_process(wd->tgl);
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edje_object_part_text_set(wd->tgl, "elm.text", label);
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_sizing_eval(obj);
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}
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static const char *
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_elm_toggle_label_get(const Evas_Object *obj, const char *item)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (item && strcmp(item, "default")) return NULL;
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if (!wd) return NULL;
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return wd->label;
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}
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/**
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* Add a toggle to @p parent.
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*
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* @param parent The parent object
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*
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* @return The toggle object
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*
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* @ingroup Toggle
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*/
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EAPI Evas_Object *
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elm_toggle_add(Evas_Object *parent)
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{
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Evas_Object *obj;
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Evas *e;
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Widget_Data *wd;
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ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
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ELM_SET_WIDTYPE(widtype, "toggle");
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elm_widget_type_set(obj, "toggle");
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elm_widget_sub_object_add(parent, obj);
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elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
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elm_widget_data_set(obj, wd);
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elm_widget_del_hook_set(obj, _del_hook);
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elm_widget_theme_hook_set(obj, _theme_hook);
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elm_widget_disable_hook_set(obj, _disable_hook);
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elm_widget_can_focus_set(obj, EINA_TRUE);
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elm_widget_event_hook_set(obj, _event_hook);
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elm_widget_text_set_hook_set(obj, _elm_toggle_label_set);
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elm_widget_text_get_hook_set(obj, _elm_toggle_label_get);
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wd->tgl = edje_object_add(e);
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_mirrored_set(obj, elm_widget_mirrored_get(obj));
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_elm_theme_object_set(obj, wd->tgl, "toggle", "base", "default");
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wd->ontext = eina_stringshare_add("ON");
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wd->offtext = eina_stringshare_add("OFF");
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edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,on", "",
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_signal_toggle_on, obj);
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edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,off", "",
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_signal_toggle_off, obj);
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elm_widget_resize_object_set(obj, wd->tgl);
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edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
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edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
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evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
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edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
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_sizing_eval(obj);
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// TODO: convert Elementary to subclassing of Evas_Smart_Class
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// TODO: and save some bytes, making descriptions per-class and not instance!
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evas_object_smart_callbacks_descriptions_set(obj, _signals);
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return obj;
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}
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/**
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* Sets the label to be displayed with the toggle.
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*
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* @param obj The toggle object
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* @param label The label to be displayed
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*
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* @ingroup Toggle
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* @deprecate use elm_object_text_* instead.
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*/
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EAPI void
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elm_toggle_label_set(Evas_Object *obj, const char *label)
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{
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_elm_toggle_label_set(obj, NULL, label);
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}
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/**
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* Gets the label of the toggle
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*
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* @param obj toggleeee object
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* @return The label of the toggle
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*
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* @ingroup Toggle
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* @deprecate use elm_object_text_* instead.
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*/
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EAPI const char *
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elm_toggle_label_get(const Evas_Object *obj)
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{
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return _elm_toggle_label_get(obj, NULL);
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}
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/**
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* Set the icon used for the toggle
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*
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* Once the icon object is set, a previously set one will be deleted
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* If you want to keep that old content object, use the
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* elm_toggle_icon_unset() function.
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*
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* @param obj The toggle object
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* @param icon The icon object for the button
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*
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* @ingroup Toggle
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*/
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EAPI void
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elm_toggle_icon_set(Evas_Object *obj, Evas_Object *icon)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (wd->icon == icon) return;
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if (wd->icon) evas_object_del(wd->icon);
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wd->icon = icon;
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if (icon)
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{
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elm_widget_sub_object_add(obj, icon);
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evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints, obj);
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edje_object_part_swallow(wd->tgl, "elm.swallow.content", icon);
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edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
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edje_object_message_signal_process(wd->tgl);
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}
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_sizing_eval(obj);
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}
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/**
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* Get the icon used for the toggle
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*
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* Return the icon object which is set for this widget.
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*
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* @param obj The toggle object
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* @return The icon object that is being used
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*
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* @ingroup Toggle
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*/
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EAPI Evas_Object *
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elm_toggle_icon_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return NULL;
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return wd->icon;
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}
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/**
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* Unset the icon used for the toggle
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*
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* Unparent and return the icon object which was set for this widget.
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*
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* @param obj The toggle object
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* @return The icon object that was being used
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*
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* @ingroup Toggle
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*/
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EAPI Evas_Object *
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elm_toggle_icon_unset(Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return NULL;
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if (!wd->icon) return NULL;
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Evas_Object *icon = wd->icon;
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elm_widget_sub_object_del(obj, wd->icon);
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edje_object_part_unswallow(wd->tgl, wd->icon);
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wd->icon = NULL;
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return icon;
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}
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/**
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* Sets the labels to be associated with the on and off states of the toggle.
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*
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* @param obj The toggle object
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* @param onlabel The label displayed when the toggle is in the "on" state
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* @param offlabel The label displayed when the toggle is in the "off" state
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*
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* @ingroup Toggle
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*/
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EAPI void
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elm_toggle_states_labels_set(Evas_Object *obj, const char *onlabel, const char *offlabel)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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eina_stringshare_replace(&wd->ontext, onlabel);
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eina_stringshare_replace(&wd->offtext, offlabel);
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edje_object_part_text_set(wd->tgl, "elm.ontext", onlabel);
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edje_object_part_text_set(wd->tgl, "elm.offtext", offlabel);
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_sizing_eval(obj);
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}
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/**
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* Gets the labels associated with the on and off states of the toggle.
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*
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* @param obj The toggle object
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* @param onlabel A char** to place the onlabel of @p obj into
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* @param offlabel A char** to place the offlabel of @p obj into
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*
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* @ingroup Toggle
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*/
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EAPI void
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elm_toggle_states_labels_get(const Evas_Object *obj, const char **onlabel, const char **offlabel)
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{
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if (onlabel) *onlabel = NULL;
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if (offlabel) *offlabel = NULL;
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (onlabel) *onlabel = wd->ontext;
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if (offlabel) *offlabel = wd->offtext;
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}
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/**
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* Sets the state of the toggle to @p state.
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*
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* @param obj The toggle object
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* @param state The state of @p obj
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*
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* @ingroup Toggle
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*/
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EAPI void
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elm_toggle_state_set(Evas_Object *obj, Eina_Bool state)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (state != wd->state)
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{
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wd->state = state;
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if (wd->statep) *wd->statep = wd->state;
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if (wd->state)
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edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
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else
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edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the state of the toggle to @p state.
|
|
*
|
|
* @param obj The toggle object
|
|
* @return The state of @p obj
|
|
*
|
|
* @ingroup Toggle
|
|
*/
|
|
EAPI Eina_Bool
|
|
elm_toggle_state_get(const Evas_Object *obj)
|
|
{
|
|
ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
|
|
Widget_Data *wd = elm_widget_data_get(obj);
|
|
if (!wd) return EINA_FALSE;
|
|
return wd->state;
|
|
}
|
|
|
|
/**
|
|
* Sets the state pointer of the toggle to @p statep.
|
|
*
|
|
* @param obj The toggle object
|
|
* @param statep The state pointer of @p obj
|
|
*
|
|
* @ingroup Toggle
|
|
*/
|
|
EAPI void
|
|
elm_toggle_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
|
|
{
|
|
ELM_CHECK_WIDTYPE(obj, widtype);
|
|
Widget_Data *wd = elm_widget_data_get(obj);
|
|
if (!wd) return;
|
|
if (statep)
|
|
{
|
|
wd->statep = statep;
|
|
if (*wd->statep != wd->state)
|
|
{
|
|
wd->state = *wd->statep;
|
|
if (wd->state)
|
|
edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
|
|
else
|
|
edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
|
|
}
|
|
}
|
|
else
|
|
wd->statep = NULL;
|
|
}
|