When dragging the PlayerWidget.timer.slider widget PlayerDurationChanged
messaged pile up in the channel and get out of sync with the
slider.connect_value_changed() signal.
Also connect on the gst_player::Player::connect_on_stream_end method.
The main reason for this is to be able to reset the slider bar to 0
upon a stream ends.
Now on_duration_changed requires a `Duration` type and
on_position_updated requires a `Position` type as oppose to
both accepting `ClockTime` as their argument.
Previously they depended on the player/pipeline to get the ClockTime
values, and only `PlayerWidget` had access to the `gst_player::Player`
object.
Now that it uses the gst_player methods instead of the raw pipeline
methods to get the ClockTime values it no longer needs access to the whole
PlayerWidget object.
It now uses gst_player::Player::connect_position_updated callback
to send, cross threads, the `position` value to the gtk main loop
which then updates the widget.
This now connect's directly to gst_player::Player::connect_duration_changed
method.
The method then sends a cross-thread msg to the Action channel in the main loop that
then updates the widget.
This commit also removes the majority of the playback widget,
though most of it's code will make it to the PlayerWidget once
it starts to get wired to the gtreamer_plaer::Player.
When you just update/replace the widget there is no need for an animation
to occur. Thus why animations where broken before. This commit is not ideal
as it makes it the responsibility of the caller to declare valid(UX wise)
transitions.
This commit reimplements support for the empty view in the ShowStack.
The current structure is the following:
* A Content stack which holds the HomeStack and the ShowStack.
It's what is used in the headerbar StackSwitcher.
* The HomeStack is composed of the HomeView and an EmptyView.
* The ShowStack is composed of the PopulatedStack and an EmptyView.
* The PopulatedStack is composed of the ShowsView and the ShowWidget
currently. An AboutEpisode widget is planned to be added here also.
This removes the empty widget from the ShowStack. The plan is
to have a ShowsView which will be the parent of ShowStack and
an Empty Widget. Then make ShowStack have only valid populated
states of ShowsPopulate, ShowWidget and AboutEpisodeWidget later.
