Panel: fix widgets being arranged in wrong order in new panel
After Plasmoids are ported to PlasmoidItem, checkLastSpacer()
can detect
the Layout properties of a widget immediately after a new panel is added. The task
manager widget sets Layout.fillWidth: true
in horizontal panels, so
after the task manager widget is added to panel, hasSpacer
will become
true, and lastSpacer
will become invisible, making layout.childAt
unable to locate any item because QQuickItem::childAt will ignore
invisible items.
This adds a new visible condition to lastSpacer
. When lastSpacer's
width is equal to currentLayout's width, it means all widgets are still
being loaded in a new panel, so lastSpacer
should still keep visible
to make layout.childAt
able to find it.
BUG: 470927 FIXED-IN: 6.0