SearchBar.qml Example File

places/items/SearchBar.qml
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 import QtQuick 2.5
 import QtQuick.Controls 1.4
 import QtQuick.Layouts 1.2

 ToolBar {

     property bool busyIndicatorRunning : false
     property bool searchBarVisbile: true

     signal doSearch(string searchText)
     signal searchTextChanged(string searchText)
     signal showCategories()
     signal goBack()
     signal showMap()

     onSearchBarVisbileChanged: {
         searchBar.opacity = searchBarVisbile ? 1 : 0
         backBar.opacity = searchBarVisbile ? 0 : 1
     }

     function showSearch(text) {
         if (text != null) {
             searchText.ignoreTextChange = true
             searchText.text = text
             searchText.ignoreTextChange = false
         }
     }

     RowLayout {
         id: searchBar
         width: parent.width
         height: parent.height
         Behavior on opacity { NumberAnimation{} }
         visible: opacity ? true : false
         TextField {
             id: searchText
             Behavior on opacity { NumberAnimation{} }
             visible: opacity ? true : false
             property bool ignoreTextChange: false
             placeholderText: qsTr("Type place...")
             Layout.fillWidth: true
             onTextChanged: {
                 if (!ignoreTextChange)
                     searchTextChanged(text)
             }
             onAccepted: doSearch(searchText.text)
         }
         ToolButton {
             id: searchButton
             iconSource:  "../../resources/search.png"
             onClicked: doSearch(searchText.text)
         }
         ToolButton {
             id: categoryButton
             iconSource:  "../../resources/categories.png"
             onClicked: showCategories()
         }
     }

     RowLayout {
         id: backBar
         width: parent.width
         height: parent.height
         opacity: 0
         Behavior on opacity { NumberAnimation{} }
         visible: opacity ? true : false
         ToolButton {
             id: backButton
             iconSource:  "../../resources/left.png"
             onClicked: goBack()
         }
         ToolButton {
             id: mapButton
             iconSource:  "../../resources/search.png"
             onClicked: showMap()
         }
         Item {
              Layout.fillWidth: true
         }
     }
 }