Show a label when no posts are found

src/qml/danbooruimageview.qml

@@ -48,11 +48,17 @@ Rectangle {
     }
 
     onDownloadFinished: {
+
         grid.opacity = 1
         runningIndicator.running = false
+
+        if (danbooruModel.rowCount() == 0) {
+            warnLabel.visible = true
+        }
     }
 
     onDownloadStarted: {
+        warnLabel.visible = false
         grid.opacity = 0.5
         runningIndicator.running = true
     }
@@ -67,6 +73,20 @@ Rectangle {
         running: false
     }
 
+    Label {
+        id: warnLabel
+        z: 1
+        width: grid.cellWidth / 2
+        height: grid.cellHeight / 2
+        anchors.horizontalCenter: parent.horizontalCenter
+        anchors.verticalCenter: parent.verticalCenter
+        visible: false
+        text: "No posts found."
+        color: black
+
+
+    }
+
     Component {
         id: highlight
         Rectangle {