module dummy

// Clipboard represents a system clipboard.
//
// System "copy" and "paste" actions utilize the clipboard for temporary storage.
pub struct Clipboard {
mut:
	text     string // text data sent or received
	got_text bool   // used to confirm that we have got the text
	is_owner bool   // to save selection owner state
}

// new_clipboard returns a new `Clipboard` instance allocated on the heap.
// The `Clipboard` resources can be released with `free()`
pub fn new_clipboard() &Clipboard {
	return &Clipboard{}
}

// new_primary returns a new X11 `PRIMARY` type `Clipboard` instance allocated on the heap.
// Please note: new_primary only works on X11 based systems.
pub fn new_primary() &Clipboard {
	return &Clipboard{}
}

// set_text transfers `text` to the system clipboard.
// This is often associated with a *copy* action (`Ctrl` + `C`).
pub fn (mut cb Clipboard) set_text(text string) bool {
	cb.text = text
	cb.is_owner = true
	cb.got_text = true
	return true
}

// get_text retrieves the contents of the system clipboard
// as a `string`.
// This is often associated with a *paste* action (`Ctrl` + `V`).
pub fn (mut cb Clipboard) get_text() string {
	return cb.text
}

// clear empties the clipboard contents.
pub fn (mut cb Clipboard) clear() {
	cb.text = ''
	cb.is_owner = false
}

// free releases all memory associated with the clipboard
// instance.
pub fn (mut cb Clipboard) free() {
}

// has_ownership returns true if the contents of
// the clipboard were created by this clipboard instance.
pub fn (cb &Clipboard) has_ownership() bool {
	return cb.is_owner
}

// check_availability returns true if the clipboard is ready to be used.
pub fn (cb &Clipboard) check_availability() bool {
	// This is a dummy clipboard implementation,
	// which can be always used, although it does not do much...
	return true
}