app: add shiny backend
Combined with the outstanding shiny CLs and prebuilt ANGLE dlls in the
right place, this makes it possible to run example/basic on a windows
machine.
Eventually this shiny backend will also replace the app package's
custom darwin_amd64 and linux_x11 backends.
For golang/go#9306
Change-Id: Ia4bf9a85b9d903d79cee36abb470a0ad57f09f36
Reviewed-on: https://go-review.googlesource.com/17777
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
diff --git a/app/app.go b/app/app.go
index 720dba4..fdcb4d0 100644
--- a/app/app.go
+++ b/app/app.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// +build linux darwin
+// +build linux darwin windows
package app
diff --git a/app/shiny.go b/app/shiny.go
new file mode 100644
index 0000000..56f28e8
--- /dev/null
+++ b/app/shiny.go
@@ -0,0 +1,70 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package app
+
+import (
+ "log"
+
+ "golang.org/x/exp/shiny/driver/gldriver"
+ "golang.org/x/exp/shiny/screen"
+ "golang.org/x/mobile/event/lifecycle"
+ "golang.org/x/mobile/event/mouse"
+ "golang.org/x/mobile/event/touch"
+ "golang.org/x/mobile/gl"
+)
+
+func main(f func(a App)) {
+ gldriver.Main(func(s screen.Screen) {
+ w, err := s.NewWindow(nil)
+ if err != nil {
+ log.Fatal(err)
+ }
+ defer w.Release()
+
+ theApp.glctx = nil
+ theApp.worker = nil // handled by shiny
+
+ go func() {
+ for range theApp.publish {
+ res := w.Publish()
+ theApp.publishResult <- PublishResult{
+ BackBufferPreserved: res.BackBufferPreserved,
+ }
+ }
+ }()
+
+ go f(theApp)
+
+ for e := range w.Events() {
+ theApp.Send(convertEvent(e))
+ }
+ })
+}
+
+func convertEvent(e interface{}) interface{} {
+ switch e := e.(type) {
+ case lifecycle.Event:
+ if theApp.glctx == nil {
+ theApp.glctx = e.DrawContext.(gl.Context)
+ }
+ case mouse.Event:
+ te := touch.Event{
+ X: e.X,
+ Y: e.Y,
+ }
+ switch e.Direction {
+ case mouse.DirNone:
+ te.Type = touch.TypeMove
+ case mouse.DirPress:
+ te.Type = touch.TypeBegin
+ case mouse.DirRelease:
+ te.Type = touch.TypeEnd
+ }
+ return te
+ }
+ return e
+}
