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ui: Stop the game when the window is deactivated (#230)

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This commit is contained in:
Hajime Hoshi 2016-06-30 01:07:54 +09:00
parent ff30f01c1b
commit 3ebc5cc15a
1 changed files with 14 additions and 0 deletions
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14
internal/ui/ui_js.go
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@ -30,6 +30,7 @@ type userInterface struct {
deviceScale float64
sizeChanged bool
contextRestored chan struct{}
windowFocus chan struct{}
}
var currentUI = &userInterface{
@ -81,6 +82,9 @@ func (u *userInterface) ActualScreenScale() float64 {
}
func (u *userInterface) Update() (interface{}, error) {
if u.windowFocus != nil {
<-u.windowFocus
}
if u.contextRestored != nil {
<-u.contextRestored
}
@ -151,6 +155,16 @@ func initialize() (*opengl.Context, error) {
})
<-ch
}
window.Call("addEventListener", "focus", func() {
if currentUI.windowFocus == nil {
return
}
close(currentUI.windowFocus)
currentUI.windowFocus = nil
})
window.Call("addEventListener", "blur", func() {
currentUI.windowFocus = make(chan struct{})
})
canvas = doc.Call("createElement", "canvas")
canvas.Set("width", 16)