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tomo-old/tomo.go

69 lines
1.9 KiB
Go

package tomo
import "git.tebibyte.media/sashakoshka/tomo/data"
import "git.tebibyte.media/sashakoshka/tomo/theme"
import "git.tebibyte.media/sashakoshka/tomo/config"
import "git.tebibyte.media/sashakoshka/tomo/elements"
var backend Backend
// Run initializes a backend, calls the callback function, and begins the event
// loop in that order. This function does not return until Stop() is called, or
// the backend experiences a fatal error.
func Run (callback func ()) (err error) {
backend, err = instantiateBackend()
if callback != nil { callback() }
err = backend.Run()
backend = nil
return
}
// Stop gracefully stops the event loop and shuts the backend down. Call this
// before closing your application.
func Stop () {
if backend != nil { backend.Stop() }
}
// Do executes the specified callback within the main thread as soon as
// possible. This function can be safely called from other threads.
func Do (callback func ()) {
assertBackend()
backend.Do(callback)
}
// NewWindow creates a new window using the current backend, and returns it as a
// Window. If the window could not be created, an error is returned explaining
// why. If this function is called without a running backend, an error is
// returned as well.
func NewWindow (width, height int) (window elements.Window, err error) {
assertBackend()
return backend.NewWindow(width, height)
}
// Copy puts data into the clipboard.
func Copy (data data.Data) {
assertBackend()
backend.Copy(data)
}
// Paste returns the data currently in the clipboard. This method may
// return nil.
func Paste (accept []data.Mime) (data.Data) {
assertBackend()
return backend.Paste(accept)
}
// SetTheme sets the theme of all open windows.
func SetTheme (theme theme.Theme) {
backend.SetTheme(theme)
}
// SetConfig sets the configuration of all open windows.
func SetConfig (config config.Config) {
backend.SetConfig(config)
}
func assertBackend () {
if backend == nil { panic("no backend is running") }
}