Qt Quick Dialog focus not work ?

[sardar]

thanks

Dialog Inherits from popup and popup have focus property. in Gallery example in Qt 5.8 use focus property in Dialog but it not work.

sample code in SDK samples :

    Dialog {
        id: settingsDialog
        x: Math.round((window.width - width) / 2)
        y: Math.round(window.height / 6)
        width: Math.round(Math.min(window.width, window.height) / 3 * 2)
        height: settingsColumn.implicitHeight + topPadding + bottomPadding
        modal: true
        focus: true

        standardButtons: Dialog.Ok | Dialog.Cancel
    }

[p3c0]

What is popup ? Can you point out that QML type ?

[sardar]

Dialog is part of Qt Quick Controls 2.1 added in Qt 5.8. you can see in doc.

Dialog QML Type
Popup QML Type

[p3c0]

@sardar Well I was not aware of the unreleased version. You're right. It should work. focus property is meant for that. Btw. what is the root element from where you launch the Dialog ?
Can you try using ApplicationWindow ? As per the the docs:

In order to ensure that a popup is displayed above other items in the scene, it is recommended to use ApplicationWindow.

So perhaps the newly opened Dialog would get the focus automatically?

[sardar]

thanks for your answer.

i use Qt samples in SDK, Gallery sample.
yes, Dialog use in ApplicationWindow.

[p3c0]

@sardar In your first post you said you have a child in the Dialog. You should also try setting focus to that particular child too once you open the Dialog.

[jpnurmi]

Looks like a regression caused by another focus-related fix. We'll fix this right away. As a temporary workaround, you can do for example:

Button {
    onClicked: {
        dialog.open()
        dialog.forceActiveFocus()
    }
}

Sorry for the inconvenience.

[Zametuppa]

Any news on this ? On this day, it's still not working.
I want to make a Dialog that is a serial shell. In this dialog I have one textArea to display the serial frames received and sent and one textInput for writing the frames I want to send. The problem is that when I type my frame and want to send it by pressing Enter, it is also quitting the dialog as it is pressing on the "Close" button.
I can't figure how to force keyboard focus only on the textInput and not trigger the reject() signal of the dialog when pressing Enter. I tried changing the focus variable but of course, it can not "assign to non-existent property" for the reasons invoked above in this thread (temporary regression). I tried the forceActiveFocus() command but it says that forceActiveFocus is not a function (sic)... I tried to catch the key pressed event but it says "Could not attach Keys property to:" on any object.

Here is a curated snippet :

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Layouts 1.1
import QtQuick.Dialogs 1.2

Dialog {
    property alias serialExchange: serialExchange

    id: serialShellRoot
    title: qsTr("Serial shell") + translator.emptyString
    modality: Qt.NonModal
    standardButtons: StandardButton.Close | StandardButton.Reset
    height: 480
    width: 640

    ColumnLayout {
        anchors.fill: parent

        Rectangle {
            Layout.fillHeight: true
            Layout.fillWidth: true

            border {
                color: "black"
                width: 1
            }

            Flickable {
                anchors.fill: parent

                TextArea.flickable: TextArea {
                    id: serialExchange
                    wrapMode: TextEdit.WrapAnywhere
                    textFormat: Text.RichText
                    readOnly: true
                    selectByMouse: true
                    font.family: "Courier New"
                    font.pixelSize: 18
                    color: "white"

                    background: Rectangle {
                        color: "black"
                    }
                }

                ScrollBar.vertical: ScrollBar { }
            }
        }

        Rectangle {
            Layout.fillWidth: true
            Layout.preferredHeight: 24

            border {
                color: "black"
                width: 1
            }

            TextInput {
                id: serialPrompt
                anchors.fill: parent
                padding: 5
                selectByMouse: true
                font.family: "Courier New"
                focus: true

                onAccepted: {
                    console.log(this.text);
                }
            }
        }
    }

    onReset: {
        serialExchange.remove(0, serialExchange.length);
    }
}

This code is located in a separate SerialShell.qml file and is called from the main.qml file which is an ApplicationWindow.
Any idea about this particular problem (probably) related to some regressions in the dialog code ?
Sorry if this is not the good place for posting this.

[jpnurmi]

@Zametuppa You are using the Dialog type from QtQuick.Dialogs 1.2, so this is a different issue than the original poster had with the Dialog type from QtQuick.Controls 2.0. The difference between the two Dialog types is that the former is a top-level window on platforms that support multiple top-level windows, whereas the latter is not a top-level window.

[Zametuppa]

@jpnurmi Sorry for this, you are right. I haven't made the switch to Qt5.8 and was looking at the wrong documentation anyway. Because some other objects have a Qt Quick and Qt Quick 2 documentation and I use Qt Quick 2, I automatically assumed that I should look at the Qt Quick 2 documentation for the Dialog. Thank you.