The Gio GioAppDelegate created the GioViewController programmatically.
When using gogio's -buildmode=archive users may want to use a different
method (for example storyboards) but there can only be one app delegate.
Move the GioAppDelegate to gogio's exe buildmode, and export the
GioViewController for embedding use.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We'd like to remove GioAppDelegate when Gio is embedded with
gogio's -buildmode=archive. Minimize the code in GioAppDelegate.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Recent changes to the macOS threading exposed a problem where a
window's display link may fail to start after being started and stopped
in rapid succession.
Introduce a displayLink type that waits a while after the last stop
request before stopping its display link. That seems to be the way
other projects are using display links.
As a bonus, the new implementation avoids the potentially expensive
overhead of frequent starting and stopping the underlying OS thread.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We're about to move the display link to common Go code. To do that,
we need the redraw logic in Go as well.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur