60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
// 28 february 2014
|
|
|
|
package ui
|
|
|
|
import (
|
|
"fmt"
|
|
"runtime"
|
|
"unsafe"
|
|
)
|
|
|
|
// #cgo LDFLAGS: -lobjc -framework Foundation -framework AppKit
|
|
// #include "objc_darwin.h"
|
|
import "C"
|
|
|
|
var uitask chan func()
|
|
|
|
func ui(main func()) error {
|
|
runtime.LockOSThread()
|
|
|
|
uitask = make(chan func())
|
|
|
|
err := initCocoa()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Cocoa must run on the first thread created by the program, so we run our dispatcher on another thread instead
|
|
go func() {
|
|
for f := range uitask {
|
|
C.douitask(appDelegate, unsafe.Pointer(&f))
|
|
}
|
|
}()
|
|
|
|
go func() {
|
|
main()
|
|
uitask <- func() {
|
|
C.breakMainLoop()
|
|
}
|
|
}()
|
|
|
|
C.cocoaMainLoop()
|
|
return nil
|
|
}
|
|
|
|
// TODO move to init_darwin.go?
|
|
|
|
func initCocoa() (err error) {
|
|
makeAppDelegate()
|
|
if C.initCocoa(appDelegate) != C.YES {
|
|
return fmt.Errorf("error setting NSApplication activation policy (basically identifies our program as a separate program; needed for several things, such as Dock icon, application menu, window resizing, etc.) (unknown reason)")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
//export appDelegate_uitask
|
|
func appDelegate_uitask(p unsafe.Pointer) {
|
|
f := (*func ())(unsafe.Pointer(p))
|
|
(*f)()
|
|
}
|