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|
package main
import (
"fmt"
tui "github.com/grindlemire/go-tui"
)
type fileList struct {
files []string
selected *tui.State[int]
scrollY *tui.State[int]
hideScrollbar *tui.State[bool]
content *tui.Ref
}
func FileList() *fileList {
files := []string{
"main.go", "app.go", "app_loop.go", "app_render.go",
"buffer.go", "cell.go", "color.go", "component.go",
"dirty.go", "element.go", "element_options.go",
"element_render.go", "element_scroll.go", "escape.go",
"event.go", "focus.go", "key.go", "keymap.go",
"layout.go", "mount.go", "ref.go", "render.go",
"state.go", "style.go", "terminal.go", "watcher.go",
}
return &fileList{
files: files,
selected: tui.NewState(0),
scrollY: tui.NewState(0),
hideScrollbar: tui.NewState(false),
content: tui.NewRef(),
}
}
func (f *fileList) scrollBy(delta int) {
el := f.content.El()
if el == nil {
return
}
_, maxY := el.MaxScroll()
newY := f.scrollY.Get() + delta
if newY < 0 {
newY = 0
}
if newY > maxY {
newY = maxY
}
f.scrollY.Set(newY)
}
func (f *fileList) moveTo(idx int) {
if idx < 0 {
idx = len(f.files) - 1
}
if idx >= len(f.files) {
idx = 0
}
f.selected.Set(idx)
el := f.content.El()
if el == nil {
return
}
_, vpH := el.ViewportSize()
y := f.scrollY.Get()
if idx < y {
f.scrollY.Set(idx)
} else if idx >= y+vpH {
f.scrollY.Set(idx - vpH + 1)
}
}
func (f *fileList) KeyMap() tui.KeyMap {
return tui.KeyMap{
tui.On(tui.KeyEscape, func(ke tui.KeyEvent) { ke.App().Stop() }),
tui.On(tui.Rune('j'), func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() + 1) }),
tui.On(tui.Rune('k'), func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() - 1) }),
tui.On(tui.KeyDown, func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() + 1) }),
tui.On(tui.KeyUp, func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() - 1) }),
tui.On(tui.KeyPageDown, func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() + 10) }),
tui.On(tui.KeyPageUp, func(ke tui.KeyEvent) { f.moveTo(f.selected.Get() - 10) }),
tui.On(tui.KeyHome, func(ke tui.KeyEvent) { f.moveTo(0) }),
tui.On(tui.KeyEnd, func(ke tui.KeyEvent) { f.moveTo(len(f.files) - 1) }),
tui.On(tui.Rune('h'), func(ke tui.KeyEvent) { f.hideScrollbar.Set(!f.hideScrollbar.Get()) }),
}
}
func (f *fileList) HandleMouse(me tui.MouseEvent) bool {
switch me.Button {
case tui.MouseWheelUp:
f.scrollBy(-3)
return true
case tui.MouseWheelDown:
f.scrollBy(3)
return true
}
return false
}
func (f *fileList) Render(app *tui.App) *tui.Element {
__tui_0 := tui.New(
tui.WithDisplay(tui.DisplayFlex), tui.WithDirection(tui.Column),
tui.WithPadding(1),
tui.WithBorder(tui.BorderRounded),
tui.WithBorderStyle(tui.NewStyle().Foreground(tui.Cyan)),
)
__tui_1 := tui.New(
tui.WithText("Files"),
tui.WithTextGradient(tui.NewGradient(tui.Cyan, tui.Magenta).WithDirection(tui.GradientHorizontal)),
tui.WithTextStyle(tui.NewStyle().Bold()),
)
__tui_0.AddChild(__tui_1)
__tui_2 := tui.New(
tui.WithScrollable(tui.ScrollVertical),
tui.WithScrollbarStyle(tui.NewStyle().Foreground(tui.Cyan)),
tui.WithScrollbarThumbStyle(tui.NewStyle().Foreground(tui.BrightCyan)),
tui.WithHeight(12),
tui.WithScrollbarHidden(f.hideScrollbar.Get()),
tui.WithScrollOffset(0, f.scrollY.Get()),
)
f.content.Set(__tui_2)
for i, name := range f.files {
_ = i
if i == f.selected.Get() {
__tui_3 := tui.New(
tui.WithText(fmt.Sprintf(" > %s ", name)),
tui.WithBackground(tui.NewStyle().Background(tui.BrightBlack)),
tui.WithTextStyle(tui.NewStyle().Foreground(tui.Cyan).Bold()),
)
__tui_2.AddChild(__tui_3)
} else {
__tui_4 := tui.New(
tui.WithText(fmt.Sprintf(" %s", name)),
)
__tui_2.AddChild(__tui_4)
}
}
__tui_0.AddChild(__tui_2)
__tui_5 := tui.New(
tui.WithDisplay(tui.DisplayFlex), tui.WithDirection(tui.Row),
tui.WithJustify(tui.JustifySpaceBetween),
)
__tui_6 := tui.New(
tui.WithText("j/k navigate | h toggle scrollbar | esc quit"),
tui.WithTextStyle(tui.NewStyle().Dim()),
)
__tui_5.AddChild(__tui_6)
__tui_7 := tui.New(
tui.WithText(fmt.Sprintf("%d/%d", f.selected.Get()+1, len(f.files))),
tui.WithTextStyle(tui.NewStyle().Dim()),
)
__tui_5.AddChild(__tui_7)
__tui_0.AddChild(__tui_5)
return __tui_0
}
func (f *fileList) UpdateProps(fresh tui.Component) {
ff, ok := fresh.(*fileList)
if !ok {
return
}
f.files = ff.files
}
var _ tui.PropsUpdater = (*fileList)(nil)
func (f *fileList) bindAppFields(app *tui.App) {
if f.selected != nil {
f.selected.BindApp(app)
}
if f.scrollY != nil {
f.scrollY.BindApp(app)
}
if f.hideScrollbar != nil {
f.hideScrollbar.BindApp(app)
}
}
func (f *fileList) BindApp(app *tui.App) {
f.bindAppFields(app)
}
var _ tui.AppBinder = (*fileList)(nil)
var (
_ tui.KeyListener = (*fileList)(nil)
_ tui.MouseListener = (*fileList)(nil)
)
|