113 lines
3.0 KiB
Go
113 lines
3.0 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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// Copyright Authors of K9s
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package ui
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import (
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"github.com/derailed/tcell/v2"
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"github.com/derailed/tview"
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)
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type ModalList struct {
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*tview.Box
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// The list embedded in the modal's frame.
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list *tview.List
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// The frame embedded in the modal.
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frame *tview.Frame
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// The optional callback for when the user clicked one of the items. It
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// receives the index of the clicked item and the item's text.
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done func(int, string)
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}
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func NewModalList(title string, list *tview.List) *ModalList {
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m := &ModalList{Box: tview.NewBox()}
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m.list = list
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m.list.SetBackgroundColor(tview.Styles.ContrastBackgroundColor).SetBorderPadding(0, 0, 0, 0)
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m.list.SetSelectedFunc(func(i int, main string, _ string, _ rune) {
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if m.done != nil {
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m.done(i, main)
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}
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})
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m.list.SetDoneFunc(func() {
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if m.done != nil {
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m.done(-1, "")
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}
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})
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m.frame = tview.NewFrame(m.list).SetBorders(0, 0, 1, 0, 0, 0)
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m.frame.SetBorder(true).
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SetBackgroundColor(tview.Styles.ContrastBackgroundColor).
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SetBorderPadding(1, 1, 1, 1)
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m.frame.SetTitle(title)
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m.frame.SetTitleColor(tcell.ColorAqua)
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return m
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}
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// Draw draws this primitive onto the screen.
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func (m *ModalList) Draw(screen tcell.Screen) {
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// Calculate the width of this modal.
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width := 0
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for i := range m.list.GetItemCount() {
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main, secondary := m.list.GetItemText(i)
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width = max(width, len(main)+len(secondary)+2)
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}
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screenWidth, screenHeight := screen.Size()
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// Set the modal's position and size.
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height := m.list.GetItemCount() + 4
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width += 2
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x := (screenWidth - width) / 2
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y := (screenHeight - height) / 2
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m.SetRect(x, y, width, height)
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// Draw the frame.
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m.frame.SetRect(x, y, width, height)
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m.frame.Draw(screen)
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}
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func (m *ModalList) SetDoneFunc(handler func(int, string)) *ModalList {
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m.done = handler
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return m
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}
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// Focus is called when this primitive receives focus.
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func (m *ModalList) Focus(delegate func(p tview.Primitive)) {
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delegate(m.list)
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}
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// HasFocus returns whether this primitive has focus.
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func (m *ModalList) HasFocus() bool {
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return m.list.HasFocus()
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}
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// MouseHandler returns the mouse handler for this primitive.
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func (m *ModalList) MouseHandler() func(action tview.MouseAction, event *tcell.EventMouse, setFocus func(p tview.Primitive)) (consumed bool, capture tview.Primitive) {
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return m.WrapMouseHandler(func(action tview.MouseAction, event *tcell.EventMouse, setFocus func(p tview.Primitive)) (consumed bool, capture tview.Primitive) {
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// Pass mouse events on to the form.
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consumed, capture = m.list.MouseHandler()(action, event, setFocus)
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if !consumed && action == tview.MouseLeftClick && m.InRect(event.Position()) {
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setFocus(m)
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consumed = true
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}
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return
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})
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}
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// InputHandler returns the handler for this primitive.
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func (m *ModalList) InputHandler() func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
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return m.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
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if m.frame.HasFocus() {
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if handler := m.frame.InputHandler(); handler != nil {
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handler(event, setFocus)
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return
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}
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}
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})
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}
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