InputBox.qml Example File

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 import QtQuick 2.2

 FocusScope {
     id: focusScope
     width: 250; height: 28

     property string text: textInput.text
     signal clear

     onClear: {
         textInput.text=""
     }

     BorderImage {
         source: "images/lineedit-bg.png"
         width: parent.width; height: parent.height
         border { left: 4; top: 4; right: 4; bottom: 4 }
     }

     Text {
         id: typeSomething
         anchors.fill: parent; anchors.leftMargin: 8
         verticalAlignment: Text.AlignVCenter
         text: "Type something..."
         color: "gray"
         font.italic: true
         font.pointSize: 14
     }

     MouseArea {
         anchors.fill: parent
         onClicked: { focusScope.focus = true; }
     }

     TextInput {
         id: textInput
         anchors { left: parent.left; leftMargin: 8; right: clear.left; rightMargin: 8; verticalCenter: parent.verticalCenter }
         focus: true
         selectByMouse: true
         font.pointSize: 14
     }

     Image {
         id: clear
         anchors { right: parent.right; rightMargin: 8; verticalCenter: parent.verticalCenter }
         source: "images/clear.png"
         opacity: 0

         MouseArea {
             // allow area to grow beyond image size
             // easier to hit the area on high DPI devices
             anchors.centerIn: parent
             height:focusScope.height
             width: focusScope.height
             onClicked: {
                 //toogle focus to be able to jump out of input method composer
                 focusScope.focus = false;
                 textInput.text = '';
                 focusScope.focus = true;
             }
         }
     }

     states: State {
         name: "hasText"; when: (textInput.text != '' || textInput.inputMethodComposing)
         PropertyChanges { target: typeSomething; opacity: 0 }
         PropertyChanges { target: clear; opacity: 1 }
     }

     transitions: [
         Transition {
             from: ""; to: "hasText"
             NumberAnimation { exclude: typeSomething; properties: "opacity" }
         },
         Transition {
             from: "hasText"; to: ""
             NumberAnimation { properties: "opacity" }
         }
     ]
 }