[accessability] Initial merge
[framework/uifw/elementary.git] / src / lib / elm_button.c
index 791d69e..7f784ea 100644 (file)
@@ -3,21 +3,36 @@
 
 typedef struct _Widget_Data Widget_Data;
 
+enum
+{
+   DEFAULT = 0,
+   HIGHLIGHTED,
+   FOCUSED,
+   DISABLED,
+};
+
 struct _Widget_Data
 {
    Evas_Object *btn, *icon;
    const char *label;
-   Eina_Bool autorepeat;
-   Eina_Bool repeating;
    double ar_threshold;
    double ar_interval;
    Ecore_Timer *timer;
+   const char *statelabel[4];
+   int statetype[4];
+   Eina_Bool autorepeat : 1;
+   Eina_Bool repeating : 1;
+   Eina_Bool delete_me : 1;
 };
 
 static const char *widtype = NULL;
 static void _del_hook(Evas_Object *obj);
+static void _del_pre_hook(Evas_Object *obj);
 static void _theme_hook(Evas_Object *obj);
 static void _disable_hook(Evas_Object *obj);
+static void _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
+static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
+static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
 static void _sizing_eval(Evas_Object *obj);
 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
@@ -30,12 +45,17 @@ static void _activate_hook(Evas_Object *obj);
 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
                              Evas_Callback_Type type, void *event_info);
 
+static void _set_label(Evas_Object *obj, const char *label);
+static void _signal_default_text_set(void *data, Evas_Object *obj, const char *emission, const char *source);
+
 static const char SIG_CLICKED[] = "clicked";
 static const char SIG_REPEATED[] = "repeated";
+static const char SIG_PRESSED[] = "pressed";
 static const char SIG_UNPRESSED[] = "unpressed";
 static const Evas_Smart_Cb_Description _signals[] = {
        {SIG_CLICKED, ""},
        {SIG_REPEATED, ""},
+       {SIG_PRESSED, ""},
        {SIG_UNPRESSED, ""},
        {NULL, NULL}
 };
@@ -60,11 +80,23 @@ _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type ty
 }
 
 static void
+_del_pre_hook(Evas_Object *obj)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return;
+   wd->delete_me = EINA_TRUE;
+}
+
+static void
 _del_hook(Evas_Object *obj)
 {
    Widget_Data *wd = elm_widget_data_get(obj);
    if (!wd) return;
    if (wd->label) eina_stringshare_del(wd->label);
+   if (wd->statelabel[DEFAULT]) eina_stringshare_del(wd->statelabel[DEFAULT]);
+   if (wd->statelabel[HIGHLIGHTED]) eina_stringshare_del(wd->statelabel[HIGHLIGHTED]);
+   if (wd->statelabel[FOCUSED]) eina_stringshare_del(wd->statelabel[FOCUSED]);
+   if (wd->statelabel[DISABLED]) eina_stringshare_del(wd->statelabel[DISABLED]);
    free(wd);
 }
 
@@ -75,11 +107,17 @@ _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
    if (!wd) return;
    if (elm_widget_focus_get(obj))
      {
+        if (wd->statelabel[FOCUSED])
+          {
+             _set_label(obj, wd->statelabel[FOCUSED]);
+          }
         edje_object_signal_emit(wd->btn, "elm,action,focus", "elm");
         evas_object_focus_set(wd->btn, EINA_TRUE);
      }
    else
      {
+        if (wd->statelabel[DEFAULT])
+          _set_label(obj, wd->statelabel[DEFAULT]);
         edje_object_signal_emit(wd->btn, "elm,action,unfocus", "elm");
         evas_object_focus_set(wd->btn, EINA_FALSE);
      }
@@ -102,6 +140,8 @@ _theme_hook(Evas_Object *obj)
    _elm_widget_mirrored_reload(obj);
    _mirrored_set(obj, elm_widget_mirrored_get(obj));
    _elm_theme_object_set(obj, wd->btn, "button", "base", elm_widget_style_get(obj));
+   if (elm_object_disabled_get(obj))
+     edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
    if (wd->icon)
      edje_object_part_swallow(wd->btn, "elm.swallow.content", wd->icon);
    if (wd->label)
@@ -113,8 +153,6 @@ _theme_hook(Evas_Object *obj)
    else
      edje_object_signal_emit(wd->btn, "elm,state,icon,hidden", "elm");
    edje_object_part_text_set(wd->btn, "elm.text", wd->label);
-   if (elm_object_disabled_get(obj))
-     edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
    edje_object_message_signal_process(wd->btn);
    edje_object_scale_set(wd->btn, elm_widget_scale_get(obj) * _elm_config->scale);
    str = edje_object_data_get(wd->btn, "focus_highlight");
@@ -131,9 +169,19 @@ _disable_hook(Evas_Object *obj)
    Widget_Data *wd = elm_widget_data_get(obj);
    if (!wd) return;
    if (elm_widget_disabled_get(obj))
-     edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
+     {
+        if (wd->statelabel[DISABLED] )
+          {
+             _set_label(obj, wd->statelabel[DISABLED]);
+          }
+        edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
+     }
    else
-     edje_object_signal_emit(wd->btn, "elm,state,enabled", "elm");
+     {
+        if (wd->statelabel[DEFAULT])
+          _set_label(obj, wd->statelabel[DEFAULT]);
+        edje_object_signal_emit(wd->btn, "elm,state,enabled", "elm");
+     }
 }
 
 static void
@@ -161,12 +209,60 @@ _signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *so
 }
 
 static void
+_content_set_hook(Evas_Object *obj, const char *part __UNUSED__, Evas_Object *content)
+{
+   ELM_CHECK_WIDTYPE(obj, widtype);
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return;
+   if (wd->icon == content) return;
+   if (wd->icon) evas_object_del(wd->icon);
+   wd->icon = content;
+   if (content)
+     {
+        elm_widget_sub_object_add(obj, content);
+        evas_object_event_callback_add(content,
+                                       EVAS_CALLBACK_CHANGED_SIZE_HINTS,
+                                       _changed_size_hints, obj);
+        edje_object_part_swallow(wd->btn, "elm.swallow.content", content);
+        edje_object_signal_emit(wd->btn, "elm,state,icon,visible", "elm");
+        edje_object_message_signal_process(wd->btn);
+     }
+   _sizing_eval(obj);
+}
+
+static Evas_Object *
+_content_get_hook(const Evas_Object *obj, const char *part __UNUSED__)
+{
+   ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return NULL;
+   return wd->icon;
+}
+
+static Evas_Object *
+_content_unset_hook(Evas_Object *obj, const char *part __UNUSED__)
+{
+   ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return NULL;
+   if (!wd->icon) return NULL;
+   Evas_Object *icon = wd->icon;
+   elm_widget_sub_object_del(obj, wd->icon);
+   evas_object_event_callback_del_full(wd->icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
+                                       _changed_size_hints, obj);
+   edje_object_part_unswallow(wd->btn, wd->icon);
+   wd->icon = NULL;
+   return icon;
+}
+
+static void
 _sizing_eval(Evas_Object *obj)
 {
    Widget_Data *wd = elm_widget_data_get(obj);
    Evas_Coord minw = -1, minh = -1;
 
    if (!wd) return;
+   if (wd->delete_me) return;
    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
    edje_object_size_min_restricted_calc(wd->btn, &minw, &minh, minw, minh);
    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
@@ -261,6 +357,10 @@ _signal_pressed(void *data, Evas_Object *obj __UNUSED__, const char *emission __
    Widget_Data *wd = elm_widget_data_get(data);
    if (!wd) return;
 
+   if (wd->statelabel[HIGHLIGHTED])
+     {
+        _set_label(data, wd->statelabel[HIGHLIGHTED]);
+     }
    if ((wd->autorepeat) && (!wd->repeating))
      {
         if (wd->ar_threshold <= 0.0)
@@ -268,6 +368,8 @@ _signal_pressed(void *data, Evas_Object *obj __UNUSED__, const char *emission __
         else
           wd->timer = ecore_timer_add(wd->ar_threshold, _autorepeat_initial_send, data);
      }
+
+   evas_object_smart_callback_call(data, SIG_PRESSED, NULL);
 }
 
 static void
@@ -275,6 +377,8 @@ _signal_unpressed(void *data, Evas_Object *obj __UNUSED__, const char *emission
 {
    Widget_Data *wd = elm_widget_data_get(data);
    if (!wd) return;
+   if (wd->statelabel[DEFAULT])
+     _set_label(data, wd->statelabel[DEFAULT]);
 
    if (wd->timer)
      {
@@ -286,11 +390,20 @@ _signal_unpressed(void *data, Evas_Object *obj __UNUSED__, const char *emission
 }
 
 static void
+_signal_default_text_set(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
+{
+   Widget_Data *wd = elm_widget_data_get(data);
+   if (!wd) return;
+   if (wd->statelabel[DEFAULT])
+     _set_label(data, wd->statelabel[DEFAULT]);
+}
+
+static void
 _elm_button_label_set(Evas_Object *obj, const char *item, const char *label)
 {
    ELM_CHECK_WIDTYPE(obj, widtype);
    Widget_Data *wd = elm_widget_data_get(obj);
-   if (item) return;
+   if (item && strcmp(item, "default")) return;
    if (!wd) return;
    eina_stringshare_replace(&wd->label, label);
    if (label)
@@ -307,11 +420,19 @@ _elm_button_label_get(const Evas_Object *obj, const char *item)
 {
    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
    Widget_Data *wd = elm_widget_data_get(obj);
-   if (item) return NULL;
+   if (item && strcmp(item, "default")) return NULL;
    if (!wd) return NULL;
    return wd->label;
 }
 
+static char *
+_access_info_cb(const void *data, Evas_Object *obj, Elm_Widget_Item *item)
+{
+   const char *txt = _elm_button_label_get(obj, NULL);
+   if (txt) return strdup(txt);
+   return txt;
+}
+
 EAPI Evas_Object *
 elm_button_add(Evas_Object *parent)
 {
@@ -327,6 +448,7 @@ elm_button_add(Evas_Object *parent)
    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_disable_hook_set(obj, _disable_hook);
    elm_widget_can_focus_set(obj, EINA_TRUE);
@@ -335,17 +457,30 @@ elm_button_add(Evas_Object *parent)
    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
-   elm_widget_label_set_hook_set(obj, _elm_button_label_set);
-   elm_widget_label_get_hook_set(obj, _elm_button_label_get);
+   elm_widget_text_set_hook_set(obj, _elm_button_label_set);
+   elm_widget_text_get_hook_set(obj, _elm_button_label_get);
+   elm_widget_content_set_hook_set(obj, _content_set_hook);
+   elm_widget_content_get_hook_set(obj, _content_get_hook);
+   elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 
    wd->btn = edje_object_add(e);
    _elm_theme_object_set(obj, wd->btn, "button", "base", "default");
+   wd->statetype[DEFAULT] = 0;
+   wd->statetype[HIGHLIGHTED] = 0;
+   wd->statetype[FOCUSED] = 0;
+   wd->statetype[DISABLED] = 0;
+   wd->statelabel[DEFAULT] = 0;
+   wd->statelabel[HIGHLIGHTED] = 0;
+   wd->statelabel[FOCUSED] = 0;
+   wd->statelabel[DISABLED] = 0;
    edje_object_signal_callback_add(wd->btn, "elm,action,click", "",
                                    _signal_clicked, obj);
    edje_object_signal_callback_add(wd->btn, "elm,action,press", "",
                                    _signal_pressed, obj);
    edje_object_signal_callback_add(wd->btn, "elm,action,unpress", "",
                                    _signal_unpressed, obj);
+   edje_object_signal_callback_add(wd->btn, "elm,action,default,text,set", "",
+                                   _signal_default_text_set, obj);
    elm_widget_resize_object_set(obj, wd->btn);
 
    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
@@ -355,9 +490,76 @@ elm_button_add(Evas_Object *parent)
    // TODO: convert Elementary to subclassing of Evas_Smart_Class
    // TODO: and save some bytes, making descriptions per-class and not instance!
    evas_object_smart_callbacks_descriptions_set(obj, _signals);
+   
+   _elm_access_object_register(obj, wd->btn);
+   _elm_access_text_set(_elm_access_object_get(obj),
+                        ELM_ACCESS_TYPE, E_("Button"));
+   _elm_access_callback_set(_elm_access_object_get(obj),
+                            ELM_ACCESS_INFO, _access_info_cb, obj);
    return obj;
 }
 
+static void
+_set_label(Evas_Object *obj, const char *label)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+
+   edje_object_part_text_set(wd->btn, "elm.text", label);
+   _sizing_eval(obj);
+}
+
+EAPI void
+elm_button_label_set_for_state(Evas_Object *obj, const char *label, UIControlState state)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+
+   if (!wd) return;
+   if (label == NULL) return;
+
+   if (state == UIControlStateDefault)
+     {
+        wd->statetype[DEFAULT] = UIControlStateDefault;
+        eina_stringshare_replace(&wd->statelabel[DEFAULT], label);
+        return;
+     }
+   if (state == UIControlStateHighlighted)
+     {
+        wd->statetype[HIGHLIGHTED] = UIControlStateHighlighted;
+        eina_stringshare_replace(&wd->statelabel[HIGHLIGHTED], label);
+        return;
+     }
+   if (state == UIControlStateFocused)
+     {
+        wd->statetype[FOCUSED] = UIControlStateFocused;
+        eina_stringshare_replace(&wd->statelabel[FOCUSED], label);
+        return;
+     }
+   if (state == UIControlStateDisabled)
+     {
+        wd->statetype[DISABLED] = UIControlStateDisabled;
+        eina_stringshare_replace(&wd->statelabel[DISABLED], label);
+        return;
+     }
+}
+
+EAPI const char*
+elm_button_label_get_for_state(const Evas_Object *obj, UIControlState state)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return NULL;
+
+   if (state == UIControlStateDefault)
+     return wd->statelabel[DEFAULT];
+   else if (state == UIControlStateHighlighted)
+     return wd->statelabel[HIGHLIGHTED];
+   else if (state == UIControlStateFocused)
+     return wd->statelabel[FOCUSED];
+   else if (state == UIControlStateDisabled)
+     return wd->statelabel[DISABLED];
+   else
+     return NULL;
+}
+
 EAPI void
 elm_button_label_set(Evas_Object *obj, const char *label)
 {
@@ -370,48 +572,23 @@ elm_button_label_get(const Evas_Object *obj)
    return _elm_button_label_get(obj, NULL);
 }
 
+
 EAPI void
 elm_button_icon_set(Evas_Object *obj, Evas_Object *icon)
 {
-   ELM_CHECK_WIDTYPE(obj, widtype);
-   Widget_Data *wd = elm_widget_data_get(obj);
-   if (!wd) return;
-   if (wd->icon == icon) return;
-   if (wd->icon) evas_object_del(wd->icon);
-   wd->icon = icon;
-   if (icon)
-     {
-        elm_widget_sub_object_add(obj, icon);
-        evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
-                                       _changed_size_hints, obj);
-        edje_object_part_swallow(wd->btn, "elm.swallow.content", icon);
-        edje_object_signal_emit(wd->btn, "elm,state,icon,visible", "elm");
-        edje_object_message_signal_process(wd->btn);
-     }
-   _sizing_eval(obj);
+   _content_set_hook(obj, NULL, icon);
 }
 
 EAPI Evas_Object *
 elm_button_icon_get(const Evas_Object *obj)
 {
-   ELM_CHECK_WIDTYPE(obj, widtype) NULL;
-   Widget_Data *wd = elm_widget_data_get(obj);
-   if (!wd) return NULL;
-   return wd->icon;
+   return _content_get_hook(obj, NULL);
 }
 
 EAPI Evas_Object *
 elm_button_icon_unset(Evas_Object *obj)
 {
-   ELM_CHECK_WIDTYPE(obj, widtype) NULL;
-   Widget_Data *wd = elm_widget_data_get(obj);
-   if (!wd) return NULL;
-   if (!wd->icon) return NULL;
-   Evas_Object *icon = wd->icon;
-   elm_widget_sub_object_del(obj, wd->icon);
-   edje_object_part_unswallow(wd->btn, wd->icon);
-   wd->icon = NULL;
-   return icon;
+   return _content_unset_hook(obj, NULL);
 }
 
 EAPI void