73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
package throttler
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import (
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"time"
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"github.com/gotk3/gotk3/glib"
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"github.com/gotk3/gotk3/gtk"
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)
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const TPS = 15 // tps
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type State struct {
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throttling bool
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ticker <-chan time.Time
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settings *gtk.Settings
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}
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type Connector interface {
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gtk.IWidget
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Connect(string, interface{}, ...interface{}) (glib.SignalHandle, error)
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}
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func Bind(app *gtk.Application) *State {
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var settings, _ = gtk.SettingsGetDefault()
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var s = State{
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settings: settings,
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ticker: time.Tick(time.Second / TPS),
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}
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app.Connect("window-added", func(app *gtk.Application, w *gtk.Window) {
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s.Connect(w)
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})
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return &s
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}
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func (s *State) Connect(c Connector) {
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c.Connect("focus-out-event", s.Start)
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c.Connect("focus-in-event", s.Stop)
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}
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func (s *State) Start() {
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if s.throttling {
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return
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}
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s.throttling = true
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s.settings.SetProperty("gtk-enable-animations", false)
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glib.IdleAdd(func() bool {
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// Throttle.
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<-s.ticker
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// If we're no longer throttling, then stop the ticker and remove this
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// callback from the loop.
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if !s.throttling {
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return false
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}
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// Keep calling this same callback.
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return true
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})
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}
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func (s *State) Stop() {
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if !s.throttling {
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return
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}
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s.throttling = false
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s.settings.SetProperty("gtk-enable-animations", true)
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}
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