Method eventLoop

tea.go:743–883

eventLoop is the central message loop. It receives and handles the default Bubble Tea messages, update the model and triggers redraws.

(model Model, cmds chan Cmd)

// eventLoop is the central message loop. It receives and handles the default
// Bubble Tea messages, update the model and triggers redraws.
func (p *Program) eventLoop(model Model, cmds chan Cmd) (Model, error) {
	for {
		select {
		case <-p.ctx.Done():
			return model, nil

		case err := <-p.errs:
			return model, err

		case msg := <-p.msgs:
			msg = p.translateInputEvent(msg)

			// Filter messages.
			if p.filter != nil {
				msg = p.filter(model, msg)
			}
			if msg == nil {
				continue
			}

			// Handle special internal messages.
			switch msg := msg.(type) {
			case QuitMsg:
				return model, nil

			case InterruptMsg:
				return model, ErrInterrupted

			case SuspendMsg:
				if suspendSupported {
					p.suspend()
				}

			case CapabilityMsg:
				switch msg.Content {
				case "RGB", "Tc":
					if *p.profile != colorprofile.TrueColor {
						tc := colorprofile.TrueColor
						p.profile = &tc
						go p.Send(ColorProfileMsg{*p.profile})
					}
				}

			case ModeReportMsg:
				switch msg.Mode {
				case ansi.ModeSynchronizedOutput:
					if msg.Value == ansi.ModeReset {
						// The terminal supports synchronized output and it's
						// currently disabled, so we can enable it on the renderer.
						p.renderer.setSyncdUpdates(true)
					}
				case ansi.ModeUnicodeCore:
					if msg.Value == ansi.ModeReset || msg.Value == ansi.ModeSet || msg.Value == ansi.ModePermanentlySet {
						p.renderer.setWidthMethod(ansi.GraphemeWidth)
					}
				}

			case MouseMsg: