(gopherjs) Channel Based Main Thread Ownership

gistfile1.txt

package main

import (
	"fmt"
	"github.com/gopherjs/gopherjs/js"
)

var MainLoopChan = make(chan func(), 1)

type Window struct{}

func (w *Window) renderFrame(args ...interface{}) {
	go func() {
		fmt.Println("renderFrame()")
		MainLoopChan <- func() {
			fmt.Println("glFooBar()...")
			js.Global.Call("requestAnimationFrame", w.renderFrame)
		}
	}()
}

func NewWindow() *Window {
	w := &Window{}
	// Window creation.
	js.Global.Call("requestAnimationFrame", w.renderFrame)
	return w
}

func main() {
	NewWindow()

	// Main loop.
	for {
		fmt.Println("main loop: waiting for func")
		select {
		case f := <-MainLoopChan:
			fmt.Println("main loop: exec func")
			//gopherjs:blocking
			f()
		}
	}
}