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internal/uidriver/js: Optimize isFocused() by using bind

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This commit is contained in:
Hajime Hoshi 2021-09-04 19:20:24 +09:00
parent 58ea710a84
commit 64ec626ca6
1 changed files with 15 additions and 2 deletions
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17
internal/uidriver/js/ui_js.go
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@ -89,6 +89,19 @@ var (
go2cpp = js.Global().Get("go2cpp") go2cpp = js.Global().Get("go2cpp")
) )
var (
documentHasFocus js.Value
documentHidden js.Value
)
func init() {
if go2cpp.Truthy() {
return
}
documentHasFocus = document.Get("hasFocus").Call("bind", document)
documentHidden = js.Global().Get("Object").Call("getOwnPropertyDescriptor", js.Global().Get("Document").Get("prototype"), "hidden").Get("get").Call("bind", document)
}
func (u *UserInterface) ScreenSizeInFullscreen() (int, int) { func (u *UserInterface) ScreenSizeInFullscreen() (int, int) {
return window.Get("innerWidth").Int(), window.Get("innerHeight").Int() return window.Get("innerWidth").Int(), window.Get("innerHeight").Int()
} }
@ -252,10 +265,10 @@ func (u *UserInterface) isFocused() bool {
return true return true
} }
if !document.Call("hasFocus").Bool() { if !documentHasFocus.Invoke().Bool() {
return false return false
} }
if document.Get("hidden").Bool() { if documentHidden.Invoke().Bool() {
return false return false
} }
return true return true