Send signal informing changes in icon state.

Inform that the item was disabled, highlighted or selected.
If a toolbar icon is an edje it can receive this signal and change the
icon image to a disabled image.

By: Otavio Pontes <otavio@profusion.mobi>



SVN revision: 54006

legacy/elementary/data/themes/default.edc

@@ -10377,6 +10377,16 @@ collections {
                source:  "event";
                action:  SIGNAL_EMIT "elm,action,click" "elm";
            }
+           program { name: "mouse,in";
+              signal:  "mouse,in";
+              source:  "event";
+              action:  SIGNAL_EMIT "elm,mouse,in" "elm";
+           }
+           program { name: "mouse,out";
+              signal:  "mouse,out";
+              source:  "event";
+              action:  SIGNAL_EMIT "elm,mouse,out" "elm";
+           }
            program { name: "disable";
                signal: "elm,state,disabled";
                source: "elm";

legacy/elementary/src/lib/elm_icon.c

@@ -63,6 +63,40 @@ _theme_hook(Evas_Object *obj)
    _sizing_eval(obj);
 }
 
+static void
+_signal_emit_hook(Evas_Object *obj, const char *emission, const char *source)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return;
+   Evas_Object *icon_edje;
+   icon_edje = _els_smart_icon_edje_get(wd->img);
+   if (!icon_edje) return;
+   edje_object_signal_emit(icon_edje, emission, source);
+}
+
+static void
+_signal_callback_add_hook(Evas_Object *obj, const char *emission, const char *source, void (*func_cb) (void *data, Evas_Object *o, const char *emission, const char *source), void *data)
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return;
+   Evas_Object *icon_edje;
+   icon_edje = _els_smart_icon_edje_get(wd->img);
+   if (!icon_edje) return;
+   edje_object_signal_callback_add(icon_edje, emission, source, func_cb, data);
+}
+
+static void *
+_signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *source, void (*func_cb) (void *data, Evas_Object *o, const char *emission, const char *source))
+{
+   Widget_Data *wd = elm_widget_data_get(obj);
+   if (!wd) return NULL;
+   Evas_Object *icon_edje;
+   icon_edje = _els_smart_icon_edje_get(wd->img);
+   if (!icon_edje) return NULL;
+   return edje_object_signal_callback_del(icon_edje, emission, source,
+	 func_cb);
+}
+
 static void
 _sizing_eval(Evas_Object *obj)
 {
@@ -142,6 +176,9 @@ elm_icon_add(Evas_Object *parent)
    elm_widget_data_set(obj, wd);
    elm_widget_del_hook_set(obj, _del_hook);
    elm_widget_theme_hook_set(obj, _theme_hook);
+   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);
 
    wd->lookup_order = ELM_ICON_LOOKUP_FDO_THEME;
    wd->img = _els_smart_icon_add(e);

legacy/elementary/src/lib/elm_toolbar.c

@@ -119,6 +119,7 @@ _item_select(Elm_Toolbar_Item *it)
    it->selected = EINA_TRUE;
    wd->selected_item = it;
    edje_object_signal_emit(it->base.view, "elm,state,selected", "elm");
+   elm_widget_signal_emit(it->icon, "elm,state,selected", "elm");
    _item_show(it);
    obj2 = it->base.widget;
    if(it->menu)
@@ -173,9 +174,15 @@ _item_disable(Elm_Toolbar_Item *it, Eina_Bool disabled)
    if (it->disabled == disabled) return;
    it->disabled = disabled;
    if (it->disabled)
-     edje_object_signal_emit(it->base.view, "elm,state,disabled", "elm");
+     {
+        edje_object_signal_emit(it->base.view, "elm,state,disabled", "elm");
+        elm_widget_signal_emit(it->icon, "elm,state,disabled", "elm");
+     }
    else
-     edje_object_signal_emit(it->base.view, "elm,state,enabled", "elm");
+     {
+        edje_object_signal_emit(it->base.view, "elm,state,enabled", "elm");
+        elm_widget_signal_emit(it->icon, "elm,state,enabled", "elm");
+     }
 }
 
 static void
@@ -228,9 +235,15 @@ _theme_hook(Evas_Object *obj)
         if (!it->separator)
           {
              if (it->selected)
-               edje_object_signal_emit(view, "elm,state,selected", "elm");
+               {
+                  edje_object_signal_emit(view, "elm,state,selected", "elm");
+                  elm_widget_signal_emit(it->icon, "elm,state,selected", "elm");
+               }
              if (it->disabled)
-               edje_object_signal_emit(view, "elm,state,disabled", "elm");
+               {
+                  edje_object_signal_emit(view, "elm,state,disabled", "elm");
+                  elm_widget_signal_emit(it->icon, "elm,state,disabled", "elm");
+               }
              _elm_theme_object_set(obj, view, "toolbar", "item", style);
              if (it->icon)
                {
@@ -470,6 +483,22 @@ _select(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__
    _item_select(data);
 }
 
+static void
+_mouse_in(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
+{
+   Elm_Toolbar_Item *it = data;
+   edje_object_signal_emit(it->base.view, "elm,state,highlighted", "elm");
+   elm_widget_signal_emit(it->icon, "elm,state,highlighted", "elm");
+}
+
+static void
+_mouse_out(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
+{
+   Elm_Toolbar_Item *it = data;
+   edje_object_signal_emit(it->base.view, "elm,state,unhighlighted", "elm");
+   elm_widget_signal_emit(it->icon, "elm,state,unhighlighted", "elm");
+}
+
 static void
 _layout(Evas_Object *o, Evas_Object_Box_Data *priv, void *data)
 {
@@ -517,6 +546,10 @@ _item_new(Evas_Object *obj, const char *icon, const char *label, Evas_Smart_Cb f
                          elm_widget_style_get(obj));
    edje_object_signal_callback_add(it->base.view, "elm,action,click", "elm",
                                    _select, it);
+   edje_object_signal_callback_add(it->base.view, "elm,mouse,in", "elm",
+				   _mouse_in, it);
+   edje_object_signal_callback_add(it->base.view, "elm,mouse,out", "elm",
+				   _mouse_out, it);
    elm_widget_sub_object_add(obj, it->base.view);
    if (it->icon)
      {

legacy/elementary/src/lib/els_icon.c

@@ -405,6 +405,15 @@ _els_smart_icon_edit_get(const Evas_Object *obj)
    return sd->edit;
 }
 
+Evas_Object *
+_els_smart_icon_edje_get(Evas_Object *obj)
+{
+   Smart_Data *sd = evas_object_smart_data_get(obj);
+   if (!sd) return NULL;
+   if (!sd->edje) return NULL;
+   return sd->obj;
+}
+
 /* local subsystem globals */
 static void
 _smart_reconfigure(Smart_Data *sd)

legacy/elementary/src/lib/els_icon.h

@@ -20,3 +20,4 @@ void         _els_smart_icon_orient_set       (Evas_Object *obj, Elm_Image_Orien
 Elm_Image_Orient _els_smart_icon_orient_get   (const Evas_Object *obj);
 void         _els_smart_icon_edit_set         (Evas_Object *obj, Eina_Bool, Evas_Object *parent);
 Eina_Bool    _els_smart_icon_edit_get         (const Evas_Object *obj);
+Evas_Object *_els_smart_icon_edje_get(Evas_Object *obj);