70 lines
1.2 KiB
Go
70 lines
1.2 KiB
Go
package main
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import (
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"github.com/gdamore/tcell"
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runewidth "github.com/mattn/go-runewidth"
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"github.com/rivo/tview"
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)
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type menuItem struct {
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Text string
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Shortcut tcell.Key
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Selected func()
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}
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type Menu struct {
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*tview.Box
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Items []menuItem
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}
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func NewMenu(app *tview.Application) *Menu {
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m := &Menu{
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Box: tview.NewBox(),
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}
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app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
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for _, i := range m.Items {
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if event.Key() == i.Shortcut {
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if i.Selected != nil {
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i.Selected()
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}
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break
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}
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}
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return event
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})
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return m
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}
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func (m *Menu) Draw(screen tcell.Screen) {
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x, y, width, _ := m.GetInnerRect()
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x++
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for _, i := range m.Items {
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tview.Print(screen, tcell.KeyNames[i.Shortcut], x, y, width-2, tview.AlignLeft, tcell.ColorYellow)
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x += 3
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tview.Print(screen, i.Text, x, y, width, tview.AlignLeft, tcell.ColorTeal)
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x += runewidth.StringWidth(i.Text) + 2
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}
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}
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func (m *Menu) AddItem(text string, shortcut tcell.Key, selected func()) *Menu {
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m.Items = append(m.Items, menuItem{
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Text: text,
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Shortcut: shortcut,
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Selected: selected,
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})
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return m
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}
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func (m *Menu) Clear() *Menu {
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m.Items = nil
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return m
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}
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