Method Render

list/defaultitem.go:128–189

Render prints an item.

(w io.Writer, m Model, index int, item Item)

// Render prints an item.
func (d DefaultDelegate) Render(w io.Writer, m Model, index int, item Item) {
	var (
		title, desc  string
		matchedRunes []int
		s            = &d.Styles
	)

	if i, ok := item.(DefaultItem); ok {
		title = i.Title()
		desc = i.Description()
	} else {
		return
	}

	// Prevent text from exceeding list width
	if m.width > 0 {
		textwidth := uint(m.width - s.NormalTitle.GetPaddingLeft() - s.NormalTitle.GetPaddingRight())
		title = truncate.StringWithTail(title, textwidth, ellipsis)
		desc = truncate.StringWithTail(desc, textwidth, ellipsis)
	}

	// Conditions
	var (
		isSelected  = index == m.Index()
		emptyFilter = m.FilterState() == Filtering && m.FilterValue() == ""
		isFiltered  = m.FilterState() == Filtering || m.FilterState() == FilterApplied
	)

	if isFiltered && index < len(m.filteredItems) {
		// Get indices of matched characters
		matchedRunes = m.MatchesForItem(index)
	}

	if emptyFilter {
		title = s.DimmedTitle.Render(title)
		desc = s.DimmedDesc.Render(desc)
	} else if isSelected && m.FilterState() != Filtering {
		if isFiltered {
			// Highlight matches
			unmatched := s.SelectedTitle.Inline(true)
			matched := unmatched.Copy().Inherit(s.FilterMatch)
			title = lipgloss.StyleRunes(title, matchedRunes, matched, unmatched)
		}
		title = s.SelectedTitle.Render(title)
		desc = s.SelectedDesc.Render(desc)
	} else {
		if isFiltered {
			// Highlight matches
			unmatched := s.NormalTitle.Inline(true)
			matched := unmatched.Copy().Inherit(s.FilterMatch)
			title = lipgloss.StyleRunes(title, matchedRunes, matched, unmatched)
		}
		title = s.NormalTitle.Render(title)
		desc = s.NormalDesc.Render(desc)
	}

	if d.ShowDescription {
		fmt.Fprintf(w, "%s\n%s", title, desc)