Add a method to disable a toolbar item.

Add a couple of blank lines in elm_toolbar.c to separate variables from code
in certain functions.

Set first button in Toolbar Test to be disabled (just so Elm develops can
see how it looks & acts)

NB: The theme/colors for disabled text may need/warrant work. Not sure how
Elementary people want the disabled text to look, so I used the disabled
text colors from elm_button for now.

(Hopefully the code here is acceptable ;) If not, please let me know what
needs fixing)



SVN revision: 41990

legacy/elementary/data/themes/default.edc

@@ -5068,6 +5068,18 @@ collections {
                inherit: "default" 0.0;
                visible: 0;
             }
+	    description { state: "disabled" 0.0;
+	       inherit: "default" 0.0;
+	       color: 0 0 0 128;
+	       color3: 0 0 0 0;
+	    }
+	    description { state: "disabled_visible" 0.0;
+	       inherit: "default" 0.0;
+	       color: 0 0 0 128;
+	       color3: 0 0 0 0;
+	       visible: 1;
+	       text.min: 1 1;
+	    }
          }
          part { name: "bg";
             mouse_events: 0;
@@ -5086,6 +5098,11 @@ collections {
                visible: 1;
                color: 255 255 255 255;
             }
+            description { state: "disabled" 0.0;
+               inherit: "default" 0.0;
+               visible: 0;
+               color: 255 255 255 0;
+            }
          }
          part { name: "elm.swallow.icon";
             type: SWALLOW;
@@ -5135,6 +5152,23 @@ collections {
                inherit: "default" 0.0;
                visible: 1;
             }
+	    description { state: "visible" 0.0;
+	       inherit: "default" 0.0;
+	       visible: 1;
+	       text.min: 1 1;
+	    }
+	    description { state: "disabled" 0.0;
+	       inherit: "default" 0.0;
+	       color: 0 0 0 128;
+	       color3: 0 0 0 0;
+	    }
+	    description { state: "disabled_visible" 0.0;
+	       inherit: "default" 0.0;
+	       color: 0 0 0 128;
+	       color3: 0 0 0 0;
+	       visible: 1;
+	       text.min: 1 1;
+	    }
          }
          part { name: "event";
             type: RECT;
@@ -5169,6 +5203,44 @@ collections {
             source:  "event";
             action:  SIGNAL_EMIT "elm,action,click" "elm";
          }
+	 program { name: "disable";
+	    signal: "elm,state,disabled";
+	    source: "elm";
+	    action: STATE_SET "disabled" 0.0;
+	    target: "label2";
+	    target: "bg";
+            after: "disable_text";
+	 }
+         program { name: "disable_text";
+	    script {
+	       new st[31];
+	       new Float:vl;
+	       get_state(PART:"elm.text", st, 30, vl);
+	       if (!strcmp(st, "visible"))
+		 set_state(PART:"elm.text", "disabled_visible", 0.0);
+	       else
+		 set_state(PART:"elm.text", "disabled", 0.0);
+	    }
+         }
+	 program { name: "enable";
+	    signal: "elm,state,enabled";
+	    source: "elm";
+	    action: STATE_SET "default" 0.0;
+	    target: "label2";
+	    target: "bg";
+            after: "enable_text";
+	 }
+         program { name: "enable_text";
+	    script {
+	       new st[31];
+	       new Float:vl;
+	       get_state(PART:"elm.text", st, 30, vl);
+	       if (!strcmp(st, "disabled_visible"))
+		 set_state(PART:"elm.text", "visible", 0.0);
+	       else
+		 set_state(PART:"elm.text", "default", 0.0);
+	    }
+         }
       }
    }
 

legacy/elementary/src/bin/test_toolbar.c

@@ -43,6 +43,7 @@ test_toolbar(void *data, Evas_Object *obj, void *event_info)
 {
    Evas_Object *win, *bg, *bx, *tb, *ic, *ph;
    Evas_Object *ph1, *ph2, *ph3, *ph4;
+   Elm_Toolbar_Item *item;
    char buf[PATH_MAX];
 
    win = elm_win_add(NULL, "toolbar", ELM_WIN_BASIC);
@@ -71,7 +72,8 @@ test_toolbar(void *data, Evas_Object *obj, void *event_info)
    ic = elm_icon_add(win);
    snprintf(buf, sizeof(buf), "%s/images/logo_small.png", PACKAGE_DATA_DIR);
    elm_icon_file_set(ic, buf, NULL);
-   elm_toolbar_item_add(tb, ic, "Hello", tb_1, ph1);
+   item = elm_toolbar_item_add(tb, ic, "Hello", tb_1, ph1);
+   elm_toolbar_item_disabled_set(item, EINA_TRUE);
 
    ic = elm_icon_add(win);
    snprintf(buf, sizeof(buf), "%s/images/logo_small.png", PACKAGE_DATA_DIR);

legacy/elementary/src/lib/Elementary.h.in

@@ -550,6 +550,8 @@ extern "C" {
    EAPI const char  *elm_toolbar_item_label_get(Elm_Toolbar_Item *item);
    EAPI void         elm_toolbar_item_del(Elm_Toolbar_Item *item);
    EAPI void         elm_toolbar_item_select(Elm_Toolbar_Item *item);
+   EAPI Eina_Bool    elm_toolbar_item_disabled_get(Elm_Toolbar_Item *item);
+   EAPI void         elm_toolbar_item_disabled_set(Elm_Toolbar_Item *item, Eina_Bool disabled);
    EAPI void         elm_toolbar_scrollable_set(Evas_Object *obj, Eina_Bool scrollable);
    /* smart callbacks called:
     * "clicked" - when the user clicks on a toolbar item and becomes selected

legacy/elementary/src/lib/elm_toolbar.c

@@ -20,8 +20,12 @@ struct _Elm_Toolbar_Item
    void (*func) (void *data, Evas_Object *obj, void *event_info);
    const void *data;
    Eina_Bool selected : 1;
+   Eina_Bool disabled : 1;
 };
 
+static void _item_show(Elm_Toolbar_Item *it);
+static void _item_select(Elm_Toolbar_Item *it);
+static void _item_disable(Elm_Toolbar_Item *it, Eina_Bool disabled);
 static void _del_hook(Evas_Object *obj);
 static void _theme_hook(Evas_Object *obj);
 static void _sizing_eval(Evas_Object *obj);
@@ -44,7 +48,8 @@ _item_select(Elm_Toolbar_Item *it)
    Widget_Data *wd = elm_widget_data_get(it->obj);
    Evas_Object *obj2;
    const Eina_List *l;
-   if (it->selected) return;
+
+   if ((it->selected) || (it->disabled)) return;
    EINA_LIST_FOREACH(wd->items, l, it2)
      {
 	if (it2->selected)
@@ -62,11 +67,26 @@ _item_select(Elm_Toolbar_Item *it)
    evas_object_smart_callback_call(obj2, "clicked", it);
 }
 
+static void 
+_item_disable(Elm_Toolbar_Item *it, Eina_Bool disabled)
+{
+   Widget_Data *wd = elm_widget_data_get(it->obj);
+
+   if (it->disabled == disabled) return;
+   it->disabled = disabled;
+   if (it->disabled) 
+     edje_object_signal_emit(it->base, "elm,state,disabled", "elm");
+   else
+     edje_object_signal_emit(it->base, "elm,state,enabled", "elm");
+//   _item_show(it);
+}
+
 static void
 _del_hook(Evas_Object *obj)
 {
    Widget_Data *wd = elm_widget_data_get(obj);
    Elm_Toolbar_Item *it;
+
    EINA_LIST_FREE(wd->items, it)
      {
 	eina_stringshare_del(it->label);
@@ -90,8 +110,10 @@ _theme_hook(Evas_Object *obj)
    EINA_LIST_FOREACH(wd->items, l, it)
      {
 	edje_object_scale_set(it->base, elm_widget_scale_get(obj) * _elm_config->scale);
-	if (it->selected)
+	if (it->selected) 
 	  edje_object_signal_emit(it->base, "elm,state,selected", "elm");
+        if (it->disabled)
+          edje_object_signal_emit(it->base, "elm,state,disabled", "elm");
 	_elm_theme_set(it->base, "toolbar", "item", style);
 	if (it->icon)
 	  {
@@ -217,6 +239,7 @@ elm_toolbar_item_add(Evas_Object *obj, Evas_Object *icon, const char *label, voi
    Widget_Data *wd = elm_widget_data_get(obj);
    Evas_Coord mw, mh;
    Elm_Toolbar_Item *it = calloc(1, sizeof(Elm_Toolbar_Item));
+
    if (!it) return NULL;
    wd->items = eina_list_append(wd->items, it);
    it->obj = obj;
@@ -272,6 +295,7 @@ elm_toolbar_item_del(Elm_Toolbar_Item *it)
 {
    Widget_Data *wd = elm_widget_data_get(it->obj);
    Evas_Object *obj2 = it->obj;
+
    wd->items = eina_list_remove(wd->items, it);
    eina_stringshare_del(it->label);
    if (it->icon) evas_object_del(it->icon);
@@ -286,10 +310,24 @@ elm_toolbar_item_select(Elm_Toolbar_Item *item)
    _item_select(item);
 }
 
+EAPI Eina_Bool 
+elm_toolbar_item_disabled_get(Elm_Toolbar_Item *item) 
+{
+   if (!item) return EINA_FALSE;
+   return item->disabled;
+}
+
+EAPI void 
+elm_toolbar_item_disabled_set(Elm_Toolbar_Item *item, Eina_Bool disabled) 
+{
+   _item_disable(item, disabled);
+}
+
 EAPI void
 elm_toolbar_scrollable_set(Evas_Object *obj, Eina_Bool scrollable)
 {
    Widget_Data *wd = elm_widget_data_get(obj);
+
    wd->scrollable = scrollable;
    _sizing_eval(obj);
 }