In the addons screen, show a tip to remember that the Internet connection is disabled. (Issue #1763). (#2605)

data/gui/addons_screen.stkgui

@@ -33,5 +33,8 @@
         <box proportion="1" width="98%" align="center" layout="vertical-row" padding="6">
             <list id="list_addons" x="0" y="0" width="100%" height="100%"/>
         </box>
+
+        <bright width="97%" id="tips_label" text="" align="center"/>
+
     </div>
 </stkgui>

src/states_screens/addons_screen.cpp

@@ -65,6 +65,7 @@ AddonsScreen::AddonsScreen() : Screen("addons_screen.stkgui")
     m_date_filters.push_back(filter_1y);
     m_date_filters.push_back(filter_2y);
 
+    m_show_tips = true;
 }   // AddonsScreen
 
 // ----------------------------------------------------------------------------
@@ -95,7 +96,11 @@ void AddonsScreen::loadedFromFile()
     GUIEngine::ListWidget* w_list =
         getWidget<GUIEngine::ListWidget>("list_addons");
     w_list->setColumnListener(this);
-    
+
+    GUIEngine::LabelWidget* w_tips =
+        getWidget<GUIEngine::LabelWidget>("tips_label");
+    w_tips->setScrollSpeed(15);
+
 }   // loadedFromFile
 
 
@@ -130,6 +135,26 @@ void AddonsScreen::beforeAddingWidget()
     {
         w_filter_rating->addLabel(StringUtils::toWString(n / 2.0));
     }
+
+
+    GUIEngine::LabelWidget *w_tips =
+        getWidget<GUIEngine::LabelWidget>("tips_label");
+    bool ip = UserConfigParams::m_internet_status == RequestManager::IPERM_ALLOWED;
+    if(!ip)
+    {
+        w_tips->setVisible(true);
+
+        w_tips->setText( _("Access to the Internet is disabled. "
+                           "(To enable it, go to options and "
+                           "select tab 'User Interface')"),
+                         false);
+
+        w_tips->m_properties[GUIEngine::PROP_HEIGHT] = "fit";
+        calculateLayout();
+
+        m_show_tips = true;
+    }
+
 }
 // ----------------------------------------------------------------------------
 
@@ -157,7 +182,21 @@ void AddonsScreen::init()
     w_list->setIcons(m_icon_bank, (int)(m_icon_height));
 
     m_type = "kart";
+
     bool ip = UserConfigParams::m_internet_status == RequestManager::IPERM_ALLOWED;
+    if(ip)
+    {
+        // Nothing to show in the tips label, disable it.
+
+        GUIEngine::LabelWidget *w_tips =
+            getWidget<GUIEngine::LabelWidget>("tips_label");
+
+        w_tips->setVisible(false);
+        w_tips->m_properties[GUIEngine::PROP_HEIGHT] = "0";
+        calculateLayout();
+        m_show_tips = false;
+    } // ip
+
     getWidget<GUIEngine::IconButtonWidget>("reload")->setActive(ip);
 
     // Reset filter.
@@ -525,4 +564,22 @@ void AddonsScreen::onUpdate(float dt)
             // Addons manager is still initialising/downloading.
         }
     }
+
+
+    if(m_show_tips)
+    {
+        GUIEngine::LabelWidget *w_tips =
+            getWidget<GUIEngine::LabelWidget>("tips_label");
+    
+        w_tips->update(dt);
+        if(w_tips->scrolledOff())
+        {
+            // Tips have been shown once. Disable tips_label.
+            w_tips->setVisible(false);
+            w_tips->m_properties[GUIEngine::PROP_HEIGHT] = "0";
+            calculateLayout();
+            m_show_tips = false;
+        }
+    }
+
 }   // onUpdate

src/states_screens/addons_screen.hpp

@@ -84,6 +84,8 @@ private:
     /** List of date filters **/
     std::vector<DateFilter> m_date_filters;
 
+    bool             m_show_tips;
+
 public:
 
     /** Load the addons into the main list.*/