add drag and drop onto app icon (dock etc.) support for MacOS platform.

YACReaderLibrary/qml/InfoRating.qml

@@ -0,0 +1,50 @@
+import QtQuick 2.6
+
+import QtGraphicalEffects 1.0
+
+Row {
+    spacing: 0
+    property int rating : 0
+    property int mouseIndex : 0
+
+    signal ratingChangedByUser(int rating)
+
+    Repeater {
+        id: rating_compact
+        model: 5
+        Item {
+            width: 25
+            height: 20
+
+            Image {
+                id: star
+                source: "info-rating.png"
+            }
+
+            ColorOverlay {
+                anchors.fill: star
+                source: star
+                color: index < (mouseIndex > 0 ? mouseIndex : rating) ? "#ffffff" : "#1c1c1c"
+            }
+
+            MouseArea {
+                anchors.fill: parent
+                hoverEnabled: true
+
+                onPositionChanged: {
+                    mouseIndex = index + 1;
+                }
+
+                onClicked: {
+                    ratingChangedByUser(mouseIndex);
+                }
+
+                onExited: {
+                    mouseIndex = 0;
+                }
+            }
+        }
+    }
+
+
+}