Send the signal to a delegate

Hello

I have a small question I would like to address. Basically, I have a TabbedPane in my main opinion, each of my tabs are delegated qml files. And I would like to connect the signal "onTriggered" tab to an action of a ListView that is declared in the delegate refreshment. But I don't know how to talk with the content of the delegate outside of it. Is it possible to do?

Just to make it easier to understand, here's some code. My main page is like this:

TabbedPane {
    id: mainTab
    showTabsOnActionBar: true

    Tab {
        id: tabFav
        title: qsTr("Favorite") + Retranslate.onLocaleOrLanguageChanged

        imageSource: "asset:///images/icon_favorites.png"

        delegateActivationPolicy: TabDelegateActivationPolicy.ActivateImmediately

        onTriggered: {

        }

        delegate: Delegate {
            id: favorite
            source: "Favorite.qml"
        }
    } //End of favorite tab
}

And Favorite.qml like this:

NavigationPane {
    id: nav

    Page {
    Container {
            layout: DockLayout { }

            ListView {
                id: listFav
            }

            function refresh() {
               // do some stuff
            }
     }
}

Is there a way to connect the signal onTriggered from the tab to the refresh() function in the Favorite.qml?

Thank you very much

Hello

Thank you for you answer. This is exactly what I wanted; the idea was: If you have the already active tab and hit again on the tab, it refreshes the display.

So if someone struck twice on the button, the second time "onActiveTabChanged" is not raised because it is already active, but I want to take this event to refresh the view.

But I found a solution:

TabbedPane {
    property variant favController
    property variant pmController

    Tab { //Favorite tab
        id: tabFav
        property bool isInitDone: false
        title: qsTr("Favorite") + Retranslate.onLocaleOrLanguageChanged

        imageSource: "asset:///images/icon_favorites.png"

        delegateActivationPolicy: TabDelegateActivationPolicy.ActivateImmediately

        onTriggered: {
            if(isInitDone)
                favController.getFavorite();
        }

        delegate: Delegate {
            id: favorite
            source: "Favorite.qml"
        }
    } //End of favorite tab

    Tab {
        id: tabPM
        property bool isInitDone: false
        title: qsTr("Message") + Retranslate.onLocaleOrLanguageChanged
        ActionBar.placement: ActionBarPlacement.OnBar
        imageSource: "asset:///images/icon_mp.png"
        delegateActivationPolicy: TabDelegateActivationPolicy.Default

        delegate: Delegate {
            source: "PrivateMessage.qml"
        }

        onTriggered: {
            if(isInitDone)
                pmController.getMessages();
        }

    } 

    onCreationCompleted: {
        tabFav.isInitDone = true;
    }

    onActiveTabChanged: {

        if(activeTab == tabFav) {
            tabFav.isInitDone = true;
            tabPM.isInitDone = false;
        }

        if(activeTab == tabMP) {
            tabFav.isInitDone = false;
            tabPM.isInitDone = true;
        }
    }
}

NavigationPane {

    Page {

        Container {
            layout: DockLayout { }

                ListView {
                  id: listFav
                }

             attachedObjects: [
                 ListFavoriteController {
                     id: listFavoriteController

                 }
                ]
        }

        onCreationCompleted: {
                listFavoriteController.setListView(listFav);                listFavoriteController.loadView();

// ---------------------------------- NEW --------------------------
                favController = listFavoriteController;// -----------------------------------------------------------------
            }
    }
}

So basically, when the Favorite.qml page is created, I provide a pointer to the controller of the TabbedPane. And then, it can process in the 'onTriggered '. I had to manage tab and change to avoid refreshing the page twice, but it seems to do the job.

Tags: BlackBerry Developers

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