74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package ui
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import (
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"strings"
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"github.com/orus-dev/osui"
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"github.com/orus-dev/osui/colors"
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"github.com/orus-dev/osui/isKey"
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)
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type MenuComponent struct {
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Data osui.ComponentData
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Items []string
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SelectedItem int
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}
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func (m *MenuComponent) GetComponentData() *osui.ComponentData {
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return &m.Data
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}
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func (m *MenuComponent) Render() string {
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m.Data.Style.UseStyle()
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res := []string{}
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cursor := m.Data.Style.Cursor
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if !m.Data.IsActive {
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cursor = m.Data.Style.InactiveCursor
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}
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d, _ := osui.CompressString(m.Data.Style.Cursor)
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empty := strings.Repeat(" ", len(d))
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for i, item := range m.Items {
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if i == m.SelectedItem {
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res = append(res, cursor+colors.Combine(m.Data.Style.SelectedBackground, m.Data.Style.SelectedBackground)+item+colors.Reset+m.Data.DefaultColor)
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} else {
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res = append(res, empty+colors.Combine(m.Data.Style.Foreground, m.Data.Style.Background)+item+colors.Reset+m.Data.DefaultColor)
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}
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}
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return strings.Join(res, "\n")
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}
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func (m *MenuComponent) Update(key string) bool {
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ctx := osui.Context{Key: key}
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m.Data.OnUpdate(&ctx)
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if ctx.Response != 0 {
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return false
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}
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if isKey.Down(key) {
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if m.SelectedItem+1 < len(m.Items) {
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m.SelectedItem++
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} else {
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m.SelectedItem = 0
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}
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} else if isKey.Up(key) {
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if m.SelectedItem > 0 {
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m.SelectedItem--
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} else {
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m.SelectedItem = len(m.Items) - 1
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}
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} else if isKey.Enter(key) {
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m.Data.OnClick()
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return true
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}
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return false
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}
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func Menu(param osui.Param, items ...string) *MenuComponent {
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return param.UseParam(&MenuComponent{
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Items: items,
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}).(*MenuComponent)
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}
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