72 lines
2.2 KiB
Go
72 lines
2.2 KiB
Go
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// 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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// the performSelectorOnMainThread: in our uitask functions is told to wait until the action is done before it returns
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// so we're fine keeping this on the Go side since the GC won't collect it from under us
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type uitaskParams struct {
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window *Window // createWindow
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control Control // createWindow
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show bool // createWindow
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}
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//export uitask_createWindow
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func uitask_createWindow(data unsafe.Pointer) {
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uc := (*uitaskParams)(data)
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uc.window.create(uc.control, uc.show)
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}
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func (_uitask) createWindow(w *Window, c Control, s bool) {
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uc := &uitaskParams{
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window: w,
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control: c,
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show: s,
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}
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C.douitask(appDelegate, C.createWindow, unsafe.Pointer(uc))
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}
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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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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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//export appDelegate_uitask
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func appDelegate_uitask(p unsafe.Pointer) {
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f := (*func())(unsafe.Pointer(p))
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(*f)()
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}
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