dialog when closing window

summerfang

I want to use a dialog when closing the window to make sure that the user really wants to close the current window( I don't want to quit qt, I just want to close the current window. There are also some other windows running in this project. ). And my code is something like

ApplicationWindow {
    id:root
    visible: true
    title: qsTr("Main Window")
    Dialog {
        id: adialog
        title: "Warning"
        standardButtons: StandardButton.Yes |  StandardButton.Cancel
        Label {
            text: "Are you sure to close?"
        }
        onYes:{
            root.close();
        }
    }
  onClosing: {close.accepted = false ;
      adialog.open();}
}

However, when I click the "Yes" on the dialog, it cannot close the window. I also tried to add something like " root.onClosing.close.accepted = true;" to the onYes propery of the dialog, but also failed. Anyone has idea about how to close the window properly using the dialog? thanks!!

Roumed

In onYes slot you should call Qt.quit();.
http://doc.qt.io/qt-5/qml-qtqml-qt.html#quit-method

summerfang

@Roumed I don't want to quit qt, I just want to close the current window. There are also some other windows running in this project. I'll add this in this question description, thank you for pointing out that.

Vicky Sharma

You want quit only application window?

If yes then you may try this 'root.visible = false'

Roumed

@summerfang Ow.
If so, I think, there is no one-string-way to solve this problem.
You can use some kind of flag to admit closing from dialog.

summerfang

@Roumed Thank you, could you please give me a little more tips about how to set the flag? I tried different methods I could do but no one works...

Roumed

Something like this:

ApplicationWindow {
    id:root
    visible: true
    title: qsTr("Main Window")



    Dialog {
        id: adialog
        title: "Warning"
        standardButtons: StandardButton.Yes |  StandardButton.Cancel
        Label {
            text: "Are you sure to close?"
        }
        onYes:{
            root.isCloseAdmitted = true;
            root.close();
        }
    }

    property bool isCloseAdmitted: false
    onClosing: {
        if (!isCloseAdmitted) {
            close.accepted = false ;
            adialog.open();
        }
    }
}

summerfang

@Roumed Thanks a lot, I tried this but the window does not close after I clicked "Yes". I must click the "x" once again after the dialog disappears.

Roumed

@summerfang My bad.
Dialog blocks closing.

onYes: {
    root.isCloseAdmitted = true;
    close()
    root.close();
}

summerfang

@Roumed Oh, so it is! Thank you so much!!