Added callback to togglePublished()

Regards #119

qml/ttrss/harmattan/FeedItem.qml

@@ -229,11 +229,16 @@ Page {
         }
 
         ToolIcon {
-            iconSource: "../resources/ic_rss_"+(rss?"enabled":"disabled")+".png"
+            iconSource: "../resources/ic_rss_"
+                        + (rss ? "enabled" : "disabled") + ".png"
             onClicked: {
-                feedItems.togglePublished()
-                rss = !rss
-            } }
+                feedItems.togglePublished(function(successful, errorMessage,
+                                                   state) {
+                    rss = state
+                    // TODO make use of errorMessage
+                })
+            }
+        }
 
         ToolIcon {
             iconSource: "../resources/ic_"

qml/ttrss/models/FeedItemModel.qml

@@ -223,18 +223,26 @@ ListModel {
         })
     }
 
-    function togglePublished() {
+    /**
+     * Toggle published/unpublished of currently selected item.
+     * @param {function} A callback function with parameters boolean (indicating
+     *     success), string (an optional error message) and boolean (true if
+     *     published; false if unpublished).
+     */
+    function togglePublished(callback) {
         var ttrss = rootWindow.getTTRSS()
-        var sel = root.selectedIndex
-        var m = getSelectedItem()
-        ttrss.updateFeedRSS(m.id, !m.rss, function(successful, errorMessage) {
+        var index = root.selectedIndex
+        var item = getSelectedItem()
+        var newState = !item.rss
+
+        ttrss.updateFeedRSS(item.id, newState, function(successful,
+                                                         errorMessage) {
             if (successful) {
-                root.setProperty(sel, "rss", !m.rss)
-                root.itemPublishedChanged(m)
+                root.setProperty(index, "rss", newState)
+                root.itemPublishedChanged(item)
             }
 
-            // TODO Add a callback to tooglePublished() which can be used to display
-            // errorMessage.
+            callback(successful, errorMessage, item.rss)
         })
     }
 

qml/ttrss/sailfish/pages/FeedItem.qml

@@ -187,13 +187,18 @@ Page {
                     //showFeedItem()
                 }
             }
+
             IconButton {
                 id: rssSwitch
-                icon.source: "qrc:///images/ic_rss_"+(rss?"enabled":"disabled")+".png"
-                //checked: rss
+                icon.source: "qrc:///images/ic_rss_"
+                             + (rss ? "enabled" : "disabled") + ".png"
                 onClicked: {
-                    feedItemModel.togglePublished()
-                    rss = !rss
+                    feedItemModel.togglePublished(function(successful,
+                                                           errorMessage,
+                                                           state) {
+                        rss = state
+                        // TODO make use of errorMessage
+                    })
                 }
             }