Hide file filter if only 1 file type

interface/resources/qml/dialogs/FileDialog.qml

@@ -296,8 +296,8 @@ ModalWindow {
             label: "Path:"
             anchors {
                 left: parent.left
-                right: root.selectDirectory ? parent.right : selectionType.left
-                rightMargin: root.selectDirectory ? 0 : hifi.dimensions.contentSpacing.x
+                right: selectionType.visible ? selectionType.left: parent.right
+                rightMargin: selectionType.visible ? hifi.dimensions.contentSpacing.x : 0
                 bottom: buttonRow.top
                 bottomMargin: hifi.dimensions.contentSpacing.y
             }
@@ -314,7 +314,7 @@ ModalWindow {
                 left: buttonRow.left
                 right: parent.right
             }
-            visible: !selectDirectory
+            visible: !selectDirectory && filtersCount > 1
             KeyNavigation.left: fileTableView
             KeyNavigation.right: openButton
         }

interface/resources/qml/dialogs/fileDialog/FileTypeSelection.qml

@@ -16,6 +16,7 @@ ComboBox {
     id: root
     property string filtersString:  "All Files (*.*)";
     property var currentFilter: [ "*.*" ];
+    property int filtersCount: filtersString.split(';;').length
 
     // Per http://doc.qt.io/qt-5/qfiledialog.html#getOpenFileName the string can contain
     // multiple filters separated by semicolons

tests/ui/qml/main.qml

@@ -216,7 +216,8 @@ ApplicationWindow {
                 property var builder: Component {
                     FileDialog {
                         title: "Open File"
-                        filter: "*.js"
+                        filter: "All Files (*.*)"
+                        //filter: "HTML files (*.html);;Other(*.png)"
                     }
                 }