QML reset dialog with tabview - qt

Question

I was trying to implement a tabbed Dialog in QML with the means to reset it to the intial values.
Since tabs are dynamically instantiated, none of the straight forward methods seem to work. The parent Dialog can not reference the inner Combobox and the Combobox can not reference the outer Dialog. How can this be achieved?
import QtQuick 2.3
import QtQuick.Controls 1.4
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.1
Dialog {
id: dlg
title: "Settings"
visible: true
standardButtons: StandardButton.Apply | StandardButton.Reset
property string val: ""
onApply: console.log(val)
onReset: {
// RESET COMBOBOX TO DEFAULT
}
TabView {
id: tabView
anchors.fill: parent
Tab {
title: "ValueTab"
id: tabVal
GridLayout {
id: gridVal
anchors.fill: parent
GroupBox {
title: qsTr("Choose value")
id: gb
Layout.fillWidth: true
ColumnLayout {
anchors.fill: parent
id: cl
ComboBox {
id: valueChooser
editable: false
model: ListModel {
id: listModel
ListElement { text: "One" }
ListElement { text: "Two" }
ListElement { text: "Three" }
}
Layout.fillWidth: true
onCurrentTextChanged : val = currentText
}
}
}
}
}
}
}

Answer 1

I am quite unsure, if I got your question right as you say, you can not reference the Dialog from within the Combobox. I can not see the reason why.
Assuming the example of yours contains indeed your problem and all you want to do is to reset the values (and you know the original values) once the reset button is pressed, this is how I would solve it.
Using the Connections-type to connect to the Dialog's reset() from within the Combobox
import QtQuick 2.3
import QtQuick.Controls 1.4
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.1
Dialog {
id: dlg
title: "Settings"
visible: true
standardButtons: StandardButton.Apply | StandardButton.Reset
property string val: ""
onApply: console.log(val)
onReset: {
// **DONT** RESET COMBOBOX TO DEFAULT **HERE**
}
TabView {
id: tabView
anchors.fill: parent
Tab {
title: "ValueTab"
id: tabVal
GridLayout {
id: gridVal
anchors.fill: parent
GroupBox {
title: qsTr("Choose value")
id: gb
Layout.fillWidth: true
ColumnLayout {
anchors.fill: parent
id: cl
ComboBox {
id: valueChooser
editable: false
model: ListModel {
id: listModel
ListElement { text: "One" }
ListElement { text: "Two" }
ListElement { text: "Three" }
}
Layout.fillWidth: true
onCurrentTextChanged : val = currentText
/// *** INTERESTING PART HERE! ***
Connections {
target: dlg
onReset: {
// RESET COMBOBOX TO DEFAULT **HERE** INSTEAD
valueChooser.currentIndex = 0
}
}
}
}
}
}
}
}
}