65 lines
1.9 KiB
Go
65 lines
1.9 KiB
Go
// 28 february 2014
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package ui
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import (
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"fmt"
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"unsafe"
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)
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// #cgo CFLAGS: -mmacosx-version-min=10.7 -DMACOSX_DEPLOYMENT_TARGET=10.7
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// #cgo LDFLAGS: -mmacosx-version-min=10.7 -lobjc -framework Foundation -framework AppKit
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// /* application compatibilty stuff via https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/cross_development/Configuring/configuring.html, http://www.cocoawithlove.com/2009/09/building-for-earlier-os-versions-in.html, http://opensource.apple.com/source/xnu/xnu-2422.1.72/EXTERNAL_HEADERS/AvailabilityMacros.h (via http://stackoverflow.com/questions/20485797/what-macro-to-use-to-identify-mavericks-osx-10-9-in-c-c-code), and Beelsebob and LookyLuke_ICBM on irc.freenode.net/#macdev */
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// #include "objc_darwin.h"
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import "C"
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func uiinit() error {
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err := initCocoa()
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if err != nil {
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return err
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}
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return nil
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}
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func ui() {
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// Cocoa must run on the first thread created by the program, so we run our dispatcher on another thread instead
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go func() {
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<-Stop
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// TODO is this function thread-safe?
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C.breakMainLoop()
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}()
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C.cocoaMainLoop()
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}
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// we're going to call the appDelegate selector with waitUntilDone:YES so we don't have to worry about garbage collection
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// we DO need to collect the two pointers together, though
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type uipostmsg struct {
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w *Window
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data interface{}
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}
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//export appDelegate_uipost
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func appDelegate_uipost(xmsg unsafe.Pointer) {
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msg := (*uipostmsg)(xmsg)
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msg.w.sysData.post(msg.data)
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}
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func uipost(w *Window, data interface{}) {
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msg := &uipostmsg{
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w: w,
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data: data,
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}
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C.uipost(appDelegate, unsafe.Pointer(msg))
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}
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func initCocoa() (err error) {
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makeAppDelegate()
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if C.initCocoa(appDelegate) != C.YES {
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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)")
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}
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return nil
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}
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