InputBox.qml Example File

chat/InputBox.qml

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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" }
          }
      ]
  }