mainloop.go RawHistoryFolder

1package webkit
2
3import (
4	"runtime"
5
6	"github.com/diamondburned/gotk4/pkg/glib/v2"
7	"github.com/diamondburned/gotk4/pkg/gtk/v4"
8)
9
10var (
11	mainLoop      *glib.MainLoop
12	isInitialized bool
13)
14
15// InitMainThread locks the current goroutine to the OS thread for GTK operations
16// and initializes GTK. This must be called before any GTK operations.
17func InitMainThread() {
18	if !isInitialized {
19		runtime.LockOSThread()
20
21		// Initialize GTK - this is required before creating any GTK widgets
22		gtk.Init()
23
24		isInitialized = true
25	}
26}
27
28// RunMainLoop starts the GTK main event loop.
29// This function blocks until QuitMainLoop is called.
30func RunMainLoop() {
31	InitMainThread()
32
33	if mainLoop == nil {
34		mainLoop = glib.NewMainLoop(nil, false)
35	}
36
37	mainLoop.Run()
38}
39
40// QuitMainLoop stops the GTK main event loop.
41func QuitMainLoop() {
42	if mainLoop != nil {
43		mainLoop.Quit()
44	}
45}
46
47// IsMainThread returns true if called from the GTK main thread.
48func IsMainThread() bool {
49	// In gotk4, we're always on the main thread since we lock it
50	return isInitialized
51}
52
53// RunOnMainThread executes a function on the GTK main thread.
54// If already on the main thread, executes immediately.
55// Otherwise, schedules the function via glib.IdleAdd.
56func RunOnMainThread(fn func()) {
57	if IsMainThread() {
58		fn()
59		return
60	}
61
62	glib.IdleAdd(func() bool {
63		fn()
64		return false // Remove the idle handler after execution
65	})
66}