only show open in file manager button for local URLs

src/qml/ContextView.qml

@@ -330,6 +330,7 @@ FocusScope {
                 ToolButton {
                     icon.name: "document-open-folder"
                     text: i18n("Show In Folder")
+                    visible: metaDataModel.fileUrl.toString().substring(0, 7) === 'file://'
                     onClicked: {
                         ElisaApplication.showInFolder(metaDataModel.fileUrl)
                     }

src/qml/GridBrowserDelegate.qml

@@ -144,7 +144,8 @@ FocusScope {
 
                             Keys.onReturnPressed: clicked()
                             Keys.onEnterPressed: clicked()
-                            visible: showDetailsButton
+
+                            visible: showDetailsButton && (trackUrl.toString().substring(0, 7) === 'file://')
 
                             width: elisaTheme.delegateToolButtonSize
                             height: elisaTheme.delegateToolButtonSize

src/qml/ListBrowserDelegate.qml

@@ -241,6 +241,8 @@ FocusScope {
                         height: singleLineHeight
                         width: singleLineHeight
 
+                        visible: trackUrl.toString().substring(0, 7) === 'file://'
+
                         text: i18nc("Show the file for this song in the file manager", "Show in folder")
                         icon.name: "document-open-folder"
                         onClicked: {

src/qml/PlayListEntry.qml

@@ -227,6 +227,8 @@ FocusScope {
                     implicitHeight: playListEntry.height
                     implicitWidth: playListEntry.height
 
+                    visible: playListEntry.fileName.toString().substring(0, 7) === 'file://'
+
                     text: i18nc("Show the file for this song in the file manager", "Show in folder")
                     icon.name: "document-open-folder"
                     onClicked: {