FileBrowser.qml Example File

multimedia/video/qmlvideo/qml/qmlvideo/FileBrowser.qml 
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 import QtQuick 2.0
 import Qt.labs.folderlistmodel 2.0

 Rectangle {
     id: fileBrowser
     color: "transparent"

     property string folder

     property int itemHeight: Math.min(parent.width, parent.height) / 15
     property int buttonHeight: Math.min(parent.width, parent.height) / 12

     signal fileSelected(string file)

     function selectFile(file) {
         if (file !== "") {
             folder = loader.item.folders.folder
             fileBrowser.fileSelected(file)
         }
         loader.sourceComponent = undefined
     }

     Loader {
         id: loader
     }

     function show() {
         loader.sourceComponent = fileBrowserComponent
         loader.item.parent = fileBrowser
         loader.item.anchors.fill = fileBrowser
         loader.item.folder = fileBrowser.folder
     }

     Component {
         id: fileBrowserComponent

         Rectangle {
             id: root
             color: "black"
             property bool showFocusHighlight: false
             property variant folders: folders1
             property variant view: view1
             property alias folder: folders1.folder
             property color textColor: "white"

             FolderListModel {
                 id: folders1
                 folder: folder
             }

             FolderListModel {
                 id: folders2
                 folder: folder
             }

             SystemPalette {
                 id: palette
             }

             Component {
                 id: folderDelegate

                 Rectangle {
                     id: wrapper
                     function launch() {
                         var path = "file://";
                         if (filePath.length > 2 && filePath[1] === ':') // Windows drive logic, see QUrl::fromLocalFile()
                             path += '/';
                         path += filePath;
                         if (folders.isFolder(index))
                             down(path);
                         else
                             fileBrowser.selectFile(path)
                     }
                     width: root.width
                     height: folderImage.height
                     color: "transparent"

                     Rectangle {
                         id: highlight
                         visible: false
                         anchors.fill: parent
                         anchors.leftMargin: 5
                         anchors.rightMargin: 5
                         color: "#212121"
                     }

                     Item {
                         id: folderImage
                         width: itemHeight
                         height: itemHeight
                         Image {
                             id: folderPicture
                             source: "qrc:/folder.png"
                             width: itemHeight * 0.9
                             height: itemHeight * 0.9
                             anchors.left: parent.left
                             anchors.margins: 5
                             visible: folders.isFolder(index)
                         }
                     }

                     Text {
                         id: nameText
                         anchors.fill: parent;
                         verticalAlignment: Text.AlignVCenter
                         text: fileName
                         anchors.leftMargin: itemHeight + 10
                         color: (wrapper.ListView.isCurrentItem && root.showFocusHighlight) ? palette.highlightedText : textColor
                         elide: Text.ElideRight
                     }

                     MouseArea {
                         id: mouseRegion
                         anchors.fill: parent
                         onPressed: {
                             root.showFocusHighlight = false;
                             wrapper.ListView.view.currentIndex = index;
                         }
                         onClicked: { if (folders === wrapper.ListView.view.model) launch() }
                     }

                     states: [
                         State {
                             name: "pressed"
                             when: mouseRegion.pressed
                             PropertyChanges { target: highlight; visible: true }
                             PropertyChanges { target: nameText; color: palette.highlightedText }
                         }
                     ]
                 }
             }

             ListView {
                 id: view1
                 anchors.top: titleBar.bottom
                 anchors.bottom: cancelButton.top
                 width: parent.width
                 model: folders1
                 delegate: folderDelegate
                 highlight: Rectangle {
                     color: "#212121"
                     visible: root.showFocusHighlight && view1.count != 0
                     width: view1.currentItem == null ? 0 : view1.currentItem.width
                 }
                 highlightMoveVelocity: 1000
                 pressDelay: 100
                 focus: true
                 state: "current"
                 states: [
                     State {
                         name: "current"
                         PropertyChanges { target: view1; x: 0 }
                     },
                     State {
                         name: "exitLeft"
                         PropertyChanges { target: view1; x: -root.width }
                     },
                     State {
                         name: "exitRight"
                         PropertyChanges { target: view1; x: root.width }
                     }
                 ]
                 transitions: [
                     Transition {
                         to: "current"
                         SequentialAnimation {
                             NumberAnimation { properties: "x"; duration: 250 }
                         }
                     },
                     Transition {
                         NumberAnimation { properties: "x"; duration: 250 }
                         NumberAnimation { properties: "x"; duration: 250 }
                     }
                 ]
                 Keys.onPressed: root.keyPressed(event.key)
             }

             ListView {
                 id: view2
                 anchors.top: titleBar.bottom
                 anchors.bottom: parent.bottom
                 x: parent.width
                 width: parent.width
                 model: folders2
                 delegate: folderDelegate
                 highlight: Rectangle {
                     color: "#212121"
                     visible: root.showFocusHighlight && view2.count != 0
                     width: view1.currentItem == null ? 0 : view1.currentItem.width
                 }
                 highlightMoveVelocity: 1000
                 pressDelay: 100
                 states: [
                     State {
                         name: "current"
                         PropertyChanges { target: view2; x: 0 }
                     },
                     State {
                         name: "exitLeft"
                         PropertyChanges { target: view2; x: -root.width }
                     },
                     State {
                         name: "exitRight"
                         PropertyChanges { target: view2; x: root.width }
                     }
                 ]
                 transitions: [
                     Transition {
                         to: "current"
                         SequentialAnimation {
                             NumberAnimation { properties: "x"; duration: 250 }
                         }
                     },
                     Transition {
                         NumberAnimation { properties: "x"; duration: 250 }
                     }
                 ]
                 Keys.onPressed: root.keyPressed(event.key)
             }

             Rectangle {
                 width: parent.width
                 height: buttonHeight + 10
                 anchors.bottom: parent.bottom
                 color: "black"
             }

             Rectangle {
                 id: cancelButton
                 width: parent.width
                 height: buttonHeight
                 color: "#212121"
                 anchors.bottom: parent.bottom
                 anchors.left: parent.left
                 anchors.right: parent.right
                 anchors.margins: 5
                 radius: buttonHeight / 15

                 Text {
                     anchors.fill: parent
                     text: "Cancel"
                     color: "white"
                     horizontalAlignment: Text.AlignHCenter
                     verticalAlignment: Text.AlignVCenter
                 }

                 MouseArea {
                     anchors.fill: parent
                     onClicked: fileBrowser.selectFile("")
                 }
             }

             Keys.onPressed: {
                 root.keyPressed(event.key);
                 if (event.key === Qt.Key_Return || event.key === Qt.Key_Select || event.key === Qt.Key_Right) {
                     view.currentItem.launch();
                     event.accepted = true;
                 } else if (event.key === Qt.Key_Left) {
                     up();
                 }
             }

             Rectangle {
                 id: titleBar
                 width: parent.width
                 height: buttonHeight + 10
                 anchors.top: parent.top
                 color: "black"

                 Rectangle {
                     width: parent.width;
                     height: buttonHeight
                     color: "#212121"
                     anchors.margins: 5
                     anchors.top: parent.top
                     anchors.left: parent.left
                     anchors.right: parent.right
                     radius: buttonHeight / 15

                     Rectangle {
                         id: upButton
                         width: buttonHeight
                         height: buttonHeight
                         color: "transparent"
                         Image {
                             width: itemHeight
                             height: itemHeight
                             anchors.centerIn: parent
                             source: "qrc:/up.png"
                         }
                         MouseArea { id: upRegion; anchors.centerIn: parent
                             width: buttonHeight
                             height: buttonHeight
                             onClicked: up()
                         }
                         states: [
                             State {
                                 name: "pressed"
                                 when: upRegion.pressed
                                 PropertyChanges { target: upButton; color: palette.highlight }
                             }
                         ]
                     }

                     Text {
                         anchors.left: upButton.right; anchors.right: parent.right; height: parent.height
                         anchors.leftMargin: 5; anchors.rightMargin: 5
                         text: folders.folder
                         color: "white"
                         elide: Text.ElideLeft;
                         horizontalAlignment: Text.AlignLeft;
                         verticalAlignment: Text.AlignVCenter
                     }
                 }
             }

             function down(path) {
                 if (folders == folders1) {
                     view = view2
                     folders = folders2;
                     view1.state = "exitLeft";
                 } else {
                     view = view1
                     folders = folders1;
                     view2.state = "exitLeft";
                 }
                 view.x = root.width;
                 view.state = "current";
                 view.focus = true;
                 folders.folder = path;
             }

             function up() {
                 var path = folders.parentFolder;
                 if (path.toString().length === 0 || path.toString() === 'file:')
                     return;
                 if (folders == folders1) {
                     view = view2
                     folders = folders2;
                     view1.state = "exitRight";
                 } else {
                     view = view1
                     folders = folders1;
                     view2.state = "exitRight";
                 }
                 view.x = -root.width;
                 view.state = "current";
                 view.focus = true;
                 folders.folder = path;
             }

             function keyPressed(key) {
                 switch (key) {
                 case Qt.Key_Up:
                 case Qt.Key_Down:
                 case Qt.Key_Left:
                 case Qt.Key_Right:
                     root.showFocusHighlight = true;
                     break;
                 default:
                     // do nothing
                     break;
                 }
             }
         }
     }
 }

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