475 lines
13 KiB
C
475 lines
13 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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#include "elm_widget_button.h"
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static const char BUTTON_SMART_NAME[] = "elm_button";
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static const char SIG_CLICKED[] = "clicked";
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static const char SIG_REPEATED[] = "repeated";
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static const char SIG_PRESSED[] = "pressed";
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static const char SIG_UNPRESSED[] = "unpressed";
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#define ELM_BUTTON_DATA_GET(o, sd) \
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Elm_Button_Smart_Data * sd = evas_object_smart_data_get(o)
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#define ELM_BUTTON_DATA_GET_OR_RETURN(o, ptr) \
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ELM_BUTTON_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRITICAL("No widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return; \
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}
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#define ELM_BUTTON_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
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ELM_BUTTON_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRITICAL("No widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return val; \
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}
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#define ELM_BUTTON_CHECK(obj) \
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if (!obj || !elm_widget_type_check((obj), BUTTON_SMART_NAME, __func__)) \
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return
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static const Elm_Layout_Part_Alias_Description _content_aliases[] =
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{
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{"icon", "elm.swallow.content"},
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{NULL, NULL}
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};
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static const Elm_Layout_Part_Alias_Description _text_aliases[] =
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{
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{"default", "elm.text"},
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{NULL, NULL}
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};
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/* no *direct* instantiation of this class, so far */
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__UNUSED__ static Evas_Smart *_elm_button_smart_class_new(void);
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/* smart callbacks coming from elm button objects (besides the ones
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* coming from elm layout): */
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static const Evas_Smart_Cb_Description _smart_callbacks[] = {
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{SIG_CLICKED, ""},
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{SIG_REPEATED, ""},
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{SIG_PRESSED, ""},
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{SIG_UNPRESSED, ""},
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{NULL, NULL}
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};
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/* Inheriting from elm_layout. Besides, we need no more than what is
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* there */
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EVAS_SMART_SUBCLASS_NEW
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(BUTTON_SMART_NAME, _elm_button, Elm_Button_Smart_Class,
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Elm_Layout_Smart_Class, elm_layout_smart_class_get, _smart_callbacks);
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static void
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_activate(Evas_Object *obj)
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{
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ELM_BUTTON_DATA_GET_OR_RETURN(obj, sd);
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if (sd->timer)
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{
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ecore_timer_del(sd->timer);
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sd->timer = NULL;
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}
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sd->repeating = EINA_FALSE;
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if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
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(_elm_access_2nd_click_timeout(obj)))
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{
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if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
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_elm_access_say(E_("Clicked"));
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if (!elm_widget_disabled_get(obj) &&
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!evas_object_freeze_events_get(obj))
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evas_object_smart_callback_call(obj, SIG_CLICKED, NULL);
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}
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}
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static void
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_elm_button_smart_sizing_eval(Evas_Object *obj)
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{
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Evas_Coord minw = -1, minh = -1;
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ELM_BUTTON_DATA_GET(obj, sd);
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elm_coords_finger_size_adjust(1, &minw, 1, &minh);
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edje_object_size_min_restricted_calc
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(ELM_WIDGET_DATA(sd)->resize_obj, &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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}
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/* FIXME: replicated from elm_layout just because button's icon spot
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* is elm.swallow.content, not elm.swallow.icon. Fix that whenever we
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* can changed the theme API */
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static void
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_icon_signal_emit(Evas_Object *obj)
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{
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char buf[64];
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snprintf(buf, sizeof(buf), "elm,state,icon,%s",
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elm_layout_content_get(obj, "icon") ? "visible" : "hidden");
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elm_layout_signal_emit(obj, buf, "elm");
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}
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/* FIXME: replicated from elm_layout just because button's icon spot
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* is elm.swallow.content, not elm.swallow.icon. Fix that whenever we
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* can changed the theme API */
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static Eina_Bool
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_elm_button_smart_theme(Evas_Object *obj)
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{
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if (!ELM_WIDGET_CLASS(_elm_button_parent_sc)->theme(obj)) return EINA_FALSE;
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_icon_signal_emit(obj);
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return EINA_TRUE;
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}
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/* FIXME: replicated from elm_layout just because button's icon spot
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* is elm.swallow.content, not elm.swallow.icon. Fix that whenever we
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* can changed the theme API */
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static Eina_Bool
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_elm_button_smart_sub_object_del(Evas_Object *obj,
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Evas_Object *sobj)
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{
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if (!ELM_WIDGET_CLASS(_elm_button_parent_sc)->sub_object_del(obj, sobj))
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return EINA_FALSE;
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_icon_signal_emit(obj);
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return EINA_TRUE;
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}
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/* FIXME: replicated from elm_layout just because button's icon spot
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* is elm.swallow.content, not elm.swallow.icon. Fix that whenever we
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* can changed the theme API */
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static Eina_Bool
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_elm_button_smart_content_set(Evas_Object *obj,
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const char *part,
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Evas_Object *content)
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{
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if (!ELM_CONTAINER_CLASS(_elm_button_parent_sc)->content_set
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(obj, part, content))
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return EINA_FALSE;
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_icon_signal_emit(obj);
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return EINA_TRUE;
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}
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static Eina_Bool
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_elm_button_smart_event(Evas_Object *obj,
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Evas_Object *src __UNUSED__,
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Evas_Callback_Type type,
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void *event_info)
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{
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Evas_Event_Key_Down *ev = event_info;
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if (elm_widget_disabled_get(obj)) return EINA_FALSE;
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if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
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if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) 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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_activate(obj);
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ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
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elm_layout_signal_emit(obj, "elm,anim,activate", "elm");
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return EINA_TRUE;
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}
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static void
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_on_clicked_signal(void *data,
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Evas_Object *obj __UNUSED__,
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const char *emission __UNUSED__,
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const char *source __UNUSED__)
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{
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_activate(data);
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}
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static Eina_Bool
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_autorepeat_send(void *data)
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{
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ELM_BUTTON_DATA_GET_OR_RETURN_VAL(data, sd, ECORE_CALLBACK_CANCEL);
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evas_object_smart_callback_call(data, SIG_REPEATED, NULL);
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if (!sd->repeating)
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{
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sd->timer = NULL;
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return ECORE_CALLBACK_CANCEL;
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}
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return ECORE_CALLBACK_RENEW;
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}
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static Eina_Bool
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_autorepeat_initial_send(void *data)
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{
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ELM_BUTTON_DATA_GET_OR_RETURN_VAL(data, sd, ECORE_CALLBACK_CANCEL);
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if (sd->timer) ecore_timer_del(sd->timer);
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sd->repeating = EINA_TRUE;
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_autorepeat_send(data);
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sd->timer = ecore_timer_add(sd->ar_interval, _autorepeat_send, data);
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return ECORE_CALLBACK_CANCEL;
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}
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static void
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_on_pressed_signal(void *data,
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Evas_Object *obj __UNUSED__,
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const char *emission __UNUSED__,
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const char *source __UNUSED__)
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{
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ELM_BUTTON_DATA_GET_OR_RETURN(data, sd);
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if ((sd->autorepeat) && (!sd->repeating))
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{
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if (sd->ar_threshold <= 0.0)
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_autorepeat_initial_send(data); /* call immediately */
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else
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sd->timer = ecore_timer_add
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(sd->ar_threshold, _autorepeat_initial_send, data);
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}
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evas_object_smart_callback_call(data, SIG_PRESSED, NULL);
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}
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static void
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_on_unpressed_signal(void *data,
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Evas_Object *obj __UNUSED__,
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const char *emission __UNUSED__,
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const char *source __UNUSED__)
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{
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ELM_BUTTON_DATA_GET_OR_RETURN(data, sd);
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if (sd->timer)
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{
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ecore_timer_del(sd->timer);
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sd->timer = NULL;
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}
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sd->repeating = EINA_FALSE;
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evas_object_smart_callback_call(data, SIG_UNPRESSED, NULL);
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}
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static char *
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_access_info_cb(void *data __UNUSED__,
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Evas_Object *obj,
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Elm_Widget_Item *item __UNUSED__)
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{
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const char *txt = elm_widget_access_info_get(obj);
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if (!txt) txt = elm_layout_text_get(obj, NULL);
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if (txt) return strdup(txt);
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return NULL;
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}
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static char *
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_access_state_cb(void *data __UNUSED__,
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Evas_Object *obj,
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Elm_Widget_Item *item __UNUSED__)
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{
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if (elm_widget_disabled_get(obj))
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return strdup(E_("State: Disabled"));
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return NULL;
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}
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static void
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_elm_button_smart_add(Evas_Object *obj)
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{
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EVAS_SMART_DATA_ALLOC(obj, Elm_Button_Smart_Data);
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ELM_WIDGET_CLASS(_elm_button_parent_sc)->base.add(obj);
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edje_object_signal_callback_add
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(ELM_WIDGET_DATA(priv)->resize_obj, "elm,action,click", "",
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_on_clicked_signal, obj);
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edje_object_signal_callback_add
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(ELM_WIDGET_DATA(priv)->resize_obj, "elm,action,press", "",
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_on_pressed_signal, obj);
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edje_object_signal_callback_add
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(ELM_WIDGET_DATA(priv)->resize_obj, "elm,action,unpress", "",
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_on_unpressed_signal, obj);
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_elm_access_object_register(obj, ELM_WIDGET_DATA(priv)->resize_obj);
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_elm_access_text_set
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(_elm_access_object_get(obj), ELM_ACCESS_TYPE, E_("Button"));
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_elm_access_callback_set
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(_elm_access_object_get(obj), ELM_ACCESS_INFO, _access_info_cb, NULL);
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_elm_access_callback_set
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(_elm_access_object_get(obj), ELM_ACCESS_STATE, _access_state_cb, priv);
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elm_widget_can_focus_set(obj, EINA_TRUE);
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elm_layout_theme_set(obj, "button", "base", elm_widget_style_get(obj));
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}
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static void
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_elm_button_smart_set_user(Elm_Button_Smart_Class *sc)
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{
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ELM_WIDGET_CLASS(sc)->base.add = _elm_button_smart_add;
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ELM_WIDGET_CLASS(sc)->event = _elm_button_smart_event;
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ELM_WIDGET_CLASS(sc)->theme = _elm_button_smart_theme;
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ELM_WIDGET_CLASS(sc)->sub_object_del = _elm_button_smart_sub_object_del;
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/* not a 'focus chain manager' */
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ELM_WIDGET_CLASS(sc)->focus_next = NULL;
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ELM_WIDGET_CLASS(sc)->focus_direction = NULL;
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ELM_CONTAINER_CLASS(sc)->content_set = _elm_button_smart_content_set;
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ELM_LAYOUT_CLASS(sc)->sizing_eval = _elm_button_smart_sizing_eval;
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ELM_LAYOUT_CLASS(sc)->content_aliases = _content_aliases;
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ELM_LAYOUT_CLASS(sc)->text_aliases = _text_aliases;
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}
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EAPI const Elm_Button_Smart_Class *
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elm_button_smart_class_get(void)
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{
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static Elm_Button_Smart_Class _sc =
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ELM_BUTTON_SMART_CLASS_INIT_NAME_VERSION(BUTTON_SMART_NAME);
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static const Elm_Button_Smart_Class *class = NULL;
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Evas_Smart_Class *esc = (Evas_Smart_Class *)&_sc;
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if (class) return class;
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_elm_button_smart_set(&_sc);
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esc->callbacks = _smart_callbacks;
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class = &_sc;
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return class;
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}
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/* new class here just to take advantage of
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* ELM_BUTTON_SMART_CLASS_INIT() macro, which sets auto-repeat capability */
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EVAS_SMART_SUBCLASS_NEW
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(BUTTON_SMART_NAME, _elm_button_widget, Elm_Button_Smart_Class,
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Elm_Button_Smart_Class, elm_button_smart_class_get, NULL);
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static void
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_elm_button_widget_smart_set_user(Elm_Button_Smart_Class *sc __UNUSED__)
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{
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/* NOP: declared because it's obligatory for Evas macro */
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}
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EAPI Evas_Object *
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elm_button_add(Evas_Object *parent)
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{
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Evas *e;
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Evas_Object *obj;
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EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
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e = evas_object_evas_get(parent);
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if (!e) return NULL;
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obj = evas_object_smart_add(e, _elm_button_widget_smart_class_new());
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if (!elm_widget_sub_object_add(parent, obj))
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ERR("could not add %p as sub object of %p", obj, parent);
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return obj;
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}
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EAPI void
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elm_button_autorepeat_set(Evas_Object *obj,
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Eina_Bool on)
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{
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ELM_BUTTON_CHECK(obj);
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ELM_BUTTON_DATA_GET_OR_RETURN(obj, sd);
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if (sd->timer)
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{
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ecore_timer_del(sd->timer);
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sd->timer = NULL;
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}
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sd->autorepeat = on;
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sd->repeating = EINA_FALSE;
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}
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#define _AR_CAPABLE(_sd) \
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(ELM_BUTTON_CLASS(ELM_WIDGET_DATA(_sd)->api)->admits_autorepeat)
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EAPI Eina_Bool
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elm_button_autorepeat_get(const Evas_Object *obj)
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{
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ELM_BUTTON_CHECK(obj) EINA_FALSE;
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ELM_BUTTON_DATA_GET_OR_RETURN_VAL(obj, sd, EINA_FALSE);
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return _AR_CAPABLE(sd) & sd->autorepeat;
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}
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EAPI void
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elm_button_autorepeat_initial_timeout_set(Evas_Object *obj,
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double t)
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{
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ELM_BUTTON_CHECK(obj);
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ELM_BUTTON_DATA_GET_OR_RETURN(obj, sd);
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if (!_AR_CAPABLE(sd))
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{
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ERR("this widget does not support auto repetition of clicks.");
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return;
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}
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if (sd->ar_threshold == t) return;
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if (sd->timer)
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{
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ecore_timer_del(sd->timer);
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sd->timer = NULL;
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}
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sd->ar_threshold = t;
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}
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EAPI double
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elm_button_autorepeat_initial_timeout_get(const Evas_Object *obj)
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{
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ELM_BUTTON_CHECK(obj) 0.0;
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ELM_BUTTON_DATA_GET_OR_RETURN_VAL(obj, sd, 0.0);
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if (!_AR_CAPABLE(sd)) return 0.0;
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return sd->ar_threshold;
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}
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EAPI void
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elm_button_autorepeat_gap_timeout_set(Evas_Object *obj,
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double t)
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{
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ELM_BUTTON_CHECK(obj);
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ELM_BUTTON_DATA_GET_OR_RETURN(obj, sd);
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if (!_AR_CAPABLE(sd))
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{
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ERR("this widget does not support auto repetition of clicks.");
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return;
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}
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if (sd->ar_interval == t) return;
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sd->ar_interval = t;
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if ((sd->repeating) && (sd->timer)) ecore_timer_interval_set(sd->timer, t);
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}
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EAPI double
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elm_button_autorepeat_gap_timeout_get(const Evas_Object *obj)
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{
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ELM_BUTTON_CHECK(obj) 0.0;
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ELM_BUTTON_DATA_GET_OR_RETURN_VAL(obj, sd, 0.0);
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return sd->ar_interval;
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}
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