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>
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@ -2,7 +2,7 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build linux darwin
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// +build linux darwin windows
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package app
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70
app/shiny.go
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70
app/shiny.go
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@ -0,0 +1,70 @@
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build windows
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package app
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import (
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"log"
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"golang.org/x/exp/shiny/driver/gldriver"
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"golang.org/x/exp/shiny/screen"
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"golang.org/x/mobile/event/lifecycle"
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"golang.org/x/mobile/event/mouse"
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"golang.org/x/mobile/event/touch"
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"golang.org/x/mobile/gl"
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)
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func main(f func(a App)) {
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gldriver.Main(func(s screen.Screen) {
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w, err := s.NewWindow(nil)
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if err != nil {
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log.Fatal(err)
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}
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defer w.Release()
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theApp.glctx = nil
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theApp.worker = nil // handled by shiny
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go func() {
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for range theApp.publish {
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res := w.Publish()
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theApp.publishResult <- PublishResult{
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BackBufferPreserved: res.BackBufferPreserved,
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}
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}
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}()
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go f(theApp)
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for e := range w.Events() {
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theApp.Send(convertEvent(e))
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}
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})
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}
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func convertEvent(e interface{}) interface{} {
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switch e := e.(type) {
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case lifecycle.Event:
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if theApp.glctx == nil {
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theApp.glctx = e.DrawContext.(gl.Context)
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}
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case mouse.Event:
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te := touch.Event{
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X: e.X,
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Y: e.Y,
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}
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switch e.Direction {
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case mouse.DirNone:
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te.Type = touch.TypeMove
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case mouse.DirPress:
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te.Type = touch.TypeBegin
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case mouse.DirRelease:
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te.Type = touch.TypeEnd
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}
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return te
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}
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return e
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}
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