49 lines
733 B
Go
49 lines
733 B
Go
// +build !windows,!darwin,!plan9
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// 16 february 2014
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package ui
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import (
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"fmt"
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"runtime"
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)
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// #cgo pkg-config: gtk+-3.0
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// #include "gtk_unix.h"
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import "C"
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var uitask chan func()
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func ui(main func()) error {
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runtime.LockOSThread()
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uitask = make(chan func())
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err := gtk_init()
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if err != nil {
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return fmt.Errorf("gtk_init() failed: %v", err)
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}
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// thanks to tristan and Daniel_S in irc.gimp.net/#gtk
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// see our_idle_callback in callbacks_unix.go for details
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go func() {
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for f := range uitask {
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done := make(chan struct{})
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gdk_threads_add_idle(>kIdleOp{
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what: f,
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done: done,
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})
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<-done
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close(done)
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}
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}()
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go func() {
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main()
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uitask <- gtk_main_quit
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}()
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C.gtk_main()
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return nil
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}
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