> ----- Original Message ----- > From: "webie...@gmail.com" <webie...@gmail.com> > Sent: Saturday, 11 March 2017, 18:55 > Subject: [Vala] Gtk.ProgressBar
> I explain: From a FileChooserDialog is selected and opens the vCard > file, and if it is too large it takes a while to analyze and import the > contacts. At that time I want to open a window or dialog (without > buttons) with a Gtk.ProgressBar that shows the progress of the > operation. And when the operation is finished, the window / dialog is > automatically closed. Ideally you would use asynchronous, event based programming in Vala/Genie. So something like: 1. Write an asynchronous process vCard function that runs in a background thread. I've not figured out the best way of doing this, but look at the async keyword in Vala and https://developer.gnome.org/gio/stable/ch02.html 2. Write an "app_paused" object that stores two states. The first state is for a Timeout source (https://valadoc.org/glib-2.0/GLib.Timeout.html) that will then complete and then the second state is showing a spinner dialog. This needs a cancel method to cancel the timer or close the dialog. For a progress bar you would need some kind of signalling, so more complex. 3. You combine these two by starting the "app_paused" object then call yield process_vCard(). When the processing is finished the code after the yield should call the app_paused cancel method. It would be nice to find some good examples of this. > At the moment I have not known how to solve it, and I am using > Notify.Notification to report the process, but this requires a new > dependency (libnotify) and I prefer to use few dependencies. >From https://wiki.gnome.org/HowDoI/GNotification: "As of GLib 2.39, it is no longer necessary to link against libnotify to create notifications in your application, GIO now provides an API for it: GNotification." So create a Notification (https://valadoc.org/gio-2.0/GLib.Notification.html) and send it through you GApplication send_notification method ( https://valadoc.org/gio-2.0/GLib.Application.send_notification.html ) Good luck with it, Al _______________________________________________ vala-list mailing list vala-list@gnome.org https://mail.gnome.org/mailman/listinfo/vala-list
