类型 TextInput

type TextInput struct {
	Bounds   ui.Rect
	FontSize float32
	Color    ui.Color
	MonoFace ui.MonoFace
	// AltSendsEscape asks printable Alt/Option chords on a terminal to arrive as
	// raw key events with the unmodified character in KeyEvent.Text. Terminal
	// encoders can then send the conventional Escape-prefixed Meta sequence.
	// It is ignored for ordinary text fields, and input-method composition keeps
	// ownership of every key until it commits. The native policy is currently
	// implemented on macOS; app.Driver implements it for headless verification.
	AltSendsEscape bool
	// KeyReleases asks a terminal for the whole keyboard as presses and
	// releases: the modifier keys, printable keys (as raw KeyEvents with Text,
	// not text events, unless an input method consumed them) and a KeyEvent
	// with Release set when each key goes up. It is for a terminal that shows
	// another machine's desktop, where a held key or modifier means something
	// there, and for a terminal implementing a keyboard protocol (kitty's
	// progressive enhancement or win32-input-mode). Releases are never delivered to a handler that did not ask, every
	// release matches a press the handler saw, and keys still down when the
	// terminal loses the keyboard or the window loses focus are released
	// first. Committed text from an input method still arrives as text events.
	// Implemented on macOS, Windows and X11, and by app.Driver.
	KeyReleases bool
	// NavigationKeys asks Up, Down, PageUp and PageDown to reach the
	// application as raw ui.KeyEvents while the field is focused, instead
	// of being consumed by the text system or moving its caret. Use it
	// for a search field, combobox or command palette with a dropdown.
	// Cursor placement, selection, Home/End, word navigation and
	// input-method composition remain native. Defaults to the component's
	// declaration (see TextInputContext.NavigationKeys).
	// Honored by the macOS text system and app.Driver; the other platform
	// backends do not consult it yet.
	NavigationKeys bool
	// Editor connects the native text service straight to a text.Editor: the
	// runtime mirrors the editor into the platform and applies every native
	// event to it, so State and OnEvent are ignored. Leave it nil to own the
	// event handling yourself, for example to filter or transform edits.
	Editor  *text.Editor
	State   TextState
	OnEvent func(TextEvent) (TextState, error)
}