From 39878154697f0f4457c68fd7327871ef0a8b3ef0 Mon Sep 17 00:00:00 2001 From: Paulo Melo Date: Wed, 17 Feb 2021 21:10:11 +0000 Subject: [PATCH] app: change background for js Default window background is white. JS default background is transparent black. Signed-off-by: Paulo Melo --- app/loop.go | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/app/loop.go b/app/loop.go index cf00c415..32b579e3 100644 --- a/app/loop.go +++ b/app/loop.go @@ -86,7 +86,13 @@ func (l *renderLoop) renderLoop(ctx window.Context) error { l.refreshErr <- ctx.MakeCurrent() case frame := <-l.frames: ctx.Lock() - g.Clear(color.NRGBA{A: 0xff, R: 0xff, G: 0xff, B: 0xff}) + if runtime.GOOS == "js" { + // Use transparent black when Gio is embedded, to allow mixing of Gio and + // foreign content below. + g.Clear(color.NRGBA{A: 0x00, R: 0x00, G: 0x00, B: 0x00}) + } else { + g.Clear(color.NRGBA{A: 0xff, R: 0xff, G: 0xff, B: 0xff}) + } g.Collect(frame.viewport, frame.ops) // Signal that we're done with the frame ops. l.ack <- struct{}{}