143 lines
3.0 KiB
Go
143 lines
3.0 KiB
Go
package widgets
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import (
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"log"
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"sort"
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"github.com/gdamore/tcell"
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"git.sr.ht/~sircmpwn/aerc2/config"
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"git.sr.ht/~sircmpwn/aerc2/lib/ui"
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"git.sr.ht/~sircmpwn/aerc2/worker/types"
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)
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type DirectoryList struct {
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conf *config.AccountConfig
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dirs []string
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logger *log.Logger
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onInvalidate func(d ui.Drawable)
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selected string
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spinner *Spinner
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worker *types.Worker
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}
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func NewDirectoryList(conf *config.AccountConfig,
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logger *log.Logger, worker *types.Worker) *DirectoryList {
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dirlist := &DirectoryList{
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conf: conf,
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logger: logger,
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spinner: NewSpinner(),
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worker: worker,
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}
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dirlist.spinner.OnInvalidate(func(_ ui.Drawable) {
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dirlist.Invalidate()
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})
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dirlist.spinner.Start()
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return dirlist
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}
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func (dirlist *DirectoryList) UpdateList(done func(dirs []string)) {
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var dirs []string
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dirlist.worker.PostAction(
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&types.ListDirectories{}, func(msg types.WorkerMessage) {
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switch msg := msg.(type) {
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case *types.Directory:
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dirs = append(dirs, msg.Name)
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case *types.Done:
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sort.Strings(dirs)
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dirlist.dirs = dirs
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dirlist.spinner.Stop()
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dirlist.Invalidate()
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if done != nil {
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done(dirs)
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}
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}
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})
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}
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func (dirlist *DirectoryList) Select(name string) {
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dirlist.selected = name
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dirlist.worker.PostAction(&types.OpenDirectory{Directory: name}, nil)
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dirlist.Invalidate()
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}
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func (dirlist *DirectoryList) OnInvalidate(onInvalidate func(d ui.Drawable)) {
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dirlist.onInvalidate = onInvalidate
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}
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func (dirlist *DirectoryList) Invalidate() {
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if dirlist.onInvalidate != nil {
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dirlist.onInvalidate(dirlist)
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}
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}
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func (dirlist *DirectoryList) Draw(ctx *ui.Context) {
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ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
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if dirlist.spinner.IsRunning() {
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dirlist.spinner.Draw(ctx)
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return
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}
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row := 0
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for _, name := range dirlist.dirs {
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if row >= ctx.Height() {
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break
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}
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if len(dirlist.conf.Folders) > 1 && name != dirlist.selected {
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idx := sort.SearchStrings(dirlist.conf.Folders, name)
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if idx == len(dirlist.conf.Folders) ||
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dirlist.conf.Folders[idx] != name {
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continue
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}
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}
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style := tcell.StyleDefault
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if name == dirlist.selected {
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style = style.Background(tcell.ColorWhite).
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Foreground(tcell.ColorBlack)
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}
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ctx.Fill(0, row, ctx.Width(), 1, ' ', style)
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ctx.Printf(0, row, style, "%s", name)
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row++
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}
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}
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func (dirlist *DirectoryList) nextPrev(delta int) {
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for i, dir := range dirlist.dirs {
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if dir == dirlist.selected {
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var j int
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ndirs := len(dirlist.dirs)
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for j = i + delta; j != i; j += delta {
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if j < 0 {
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j = ndirs - 1
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}
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if j >= ndirs {
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j = 0
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}
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name := dirlist.dirs[j]
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if len(dirlist.conf.Folders) > 1 && name != dirlist.selected {
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idx := sort.SearchStrings(dirlist.conf.Folders, name)
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if idx == len(dirlist.conf.Folders) ||
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dirlist.conf.Folders[idx] != name {
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continue
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}
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}
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break
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}
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dirlist.Select(dirlist.dirs[j])
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break
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}
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}
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}
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func (dirlist *DirectoryList) Next() {
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dirlist.nextPrev(1)
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}
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func (dirlist *DirectoryList) Prev() {
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dirlist.nextPrev(-1)
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}
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