I did a maybe less dirty workaround yesterday:
function openWelcomeDialog()
{
console.log("working!")
if (status == PageStatus.Active)
{
mainPage.statusChanged.disconnect(openWelcomeDialog)
var component = Qt.createComponent("WelcomeDialog.qml")
var popup = component.createObject(mainPage)
popup.open()
}
}
Component.onCompleted: mainPage.statusChanged.connect(openWelcomeDialog)
This way The check will be done only 4 times in my case and not each time
something happens with the Page.
Note, that queuing would be a great idea. In my case the busy check was
false (pageStack wasn't busy) but a while after it was and Dialog couldn't
be pushed.
--
Marcin
2014-07-17 0:50 GMT+02:00 Matthew Vogt <matthew.v...@jolla.com>:
> Yes, fair point.
>
> IIRC, we decided there weren't enough motivating examples to make it worth
> adding action-queueing behaviour to the PageStack. If people keep hitting
> this problem, though, it could be worth revisiting.
>
> That said, working around the problem is usually simple, and making the
> PageStack support more complicated API patterns could lead users to get
> themselves into deeper trouble, that's harder to diagnose and fix :-)
>
> Matt
> ________________________________________
> From: devel-boun...@lists.sailfishos.org [
> devel-boun...@lists.sailfishos.org] on behalf of J-P Nurmi [
> jpnu...@gmail.com]
> Sent: Thursday, July 17, 2014 7:45 AM
> To: Sailfish OS Developers
> Subject: Re: [SailfishDevel] A welcome dialog and pageStack's operation in
> progress.
>
> On Wed, Jul 16, 2014 at 11:25 PM, Matthew Vogt <matthew.v...@jolla.com>
> wrote:
> >
> > Hi, 'Page.status' is the correct property to watch for avoiding this
> problem.
> >
> > Here is an example of what you could do:
> >
> > import QtQuick 2.0
> > import Sailfish.Silica 1.0
> >
> > ApplicationWindow {
> >
> > initialPage: Component {
> > Page {
> > anchors.fill: parent
> >
> > Label {
> > anchors.centerIn: parent
> > text: 'Main page'
> > }
> >
> > property bool showSplash: true
> > onStatusChanged: {
> > if (status == PageStatus.Active &&
> showSplash) {
> > showSplash = false
> > pageStack.push(splashPage)
> > }
> > }
> > }
> > }
> >
> > Component {
> > id: splashPage
> >
> > Page {
> > Label {
> > anchors.centerIn: parent
> > text: 'Splash page'
> > }
> > }
> > }
> > }
> >
> > Thanks,
> > Matt
>
>
> Hi Matt,
>
> Notice that essentially the same problem occurs when a dialog/page is
> triggered by an external event. User navigates the UI meanwhile eg. a
> network event triggers a dialog => PageStack is busy so it just bails
> out and user misses the dialog. As a workaround, waiting until
> PageStack is no longer busy gets pretty ugly.
>
> --
> J-P Nurmi
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