No error output if item is used for the Page assignment

[XiaoGuo, Liu]

I have a sample QML application at: https://gitcafe.com/ubuntu/TabApp2.git

You may use the command:

git clone https://gitcafe.com/ubuntu/TabApp2.git

to get the code.

In the ExternalPage.qml,

import QtQuick 2.0
import Ubuntu.Components 1.1

Item {
    anchors.fill: parent
    Label {
        anchors.centerIn: parent
        text: i18n.tr("This is page xxx one")
    }
}

I defined it as an "Item". However, when I assign it in the following way:

       Tab {
            id: externalTab
            title: i18n.tr("External")

            page: Loader {
                id: loader
                anchors.fill: parent
                source: (tabs.selectedTab === externalTab) ? Qt.resolvedUrl("ExternalPage.qml") : ""

                onLoaded: {
                    console.log( loader.source + " is loaded")
                }
            }
        }

it does not output any error messages, making it hard to use if a developer does not know how to define it.

Best regards,
XiaoGuo

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tim Peeters (tpeeters)]

What you put in a Tab (or on a PageStack) does not have to be a Page, so there is no error output.

Of source, if you don't use a Page, you don't have the features of the Page such as actions in the header, or setting a title.

[Cris Dywan (kalikiana)]

Still you end up with the wrong title set and no way to fix it… I don't see how this can be intended.

[XiaoGuo, Liu (liu-xiao-guo)]

yes, I currently get it working by defining it like:

ExternalPage.qml

Page {
    Label {
        anchors.centerIn: parent
        text: i18n.tr("This is the external page")
    }
}

If it is defined to be like:

ExternalPage.qml

import QtQuick 2.0
import Ubuntu.Components 1.1

Item {
    anchors.fill: parent
    Label {
        anchors.centerIn: parent
        text: i18n.tr("This is page xxx one")
    }
}

It does not work. The intention for the bug is to have some warnings when non-page is assigned during the running. Otherwise, a developer does not know what is happening or what could be wrong when an "Item" is assigned to a page.

Best regards,
XiaoGuo