package widgets
import (
"log"
"sort"
"github.com/gdamore/tcell"
"git.sr.ht/~sircmpwn/aerc/config"
"git.sr.ht/~sircmpwn/aerc/lib"
"git.sr.ht/~sircmpwn/aerc/lib/ui"
"git.sr.ht/~sircmpwn/aerc/worker/types"
)
type DirectoryList struct {
ui.Invalidatable
acctConf *config.AccountConfig
uiConf *config.UIConfig
store *lib.DirStore
dirs []string
logger *log.Logger
selecting string
selected string
spinner *Spinner
worker *types.Worker
}
func NewDirectoryList(acctConf *config.AccountConfig, uiConf *config.UIConfig,
logger *log.Logger, worker *types.Worker) *DirectoryList {
dirlist := &DirectoryList{
acctConf: acctConf,
uiConf: uiConf,
logger: logger,
spinner: NewSpinner(),
store: lib.NewDirStore(),
worker: worker,
}
dirlist.spinner.OnInvalidate(func(_ ui.Drawable) {
dirlist.Invalidate()
})
dirlist.spinner.Start()
return dirlist
}
func (dirlist *DirectoryList) List() []string {
return dirlist.store.List()
}
func (dirlist *DirectoryList) UpdateList(done func(dirs []string)) {
var dirs []string
dirlist.worker.PostAction(
&types.ListDirectories{}, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Directory:
dirs = append(dirs, msg.Name)
case *types.Done:
sort.Strings(dirs)
dirlist.store.Update(dirs)
dirlist.filterDirsByFoldersConfig()
dirlist.spinner.Stop()
dirlist.Invalidate()
if done != nil {
done(dirs)
}
}
})
}
func (dirlist *DirectoryList) Select(name string) {
dirlist.selecting = name
dirlist.worker.PostAction(&types.OpenDirectory{Directory: name},
func(msg types.WorkerMessage) {
switch msg.(type) {
case *types.Error:
dirlist.selecting = ""
case *types.Done:
dirlist.selected = dirlist.selecting
dirlist.filterDirsByFoldersConfig()
hasSelected := false
for _, d := range dirlist.dirs {
if d == dirlist.selected {
hasSelected = true
break
}
}
if !hasSelected && dirlist.selected != "" {
dirlist.dirs = append(dirlist.dirs, dirlist.selected)
}
sort.Strings(dirlist.dirs)
}
dirlist.Invalidate()
})
dirlist.Invalidate()
}
func (dirlist *DirectoryList) Selected() string {
return dirlist.selected
}
func (dirlist *DirectoryList) Invalidate() {
dirlist.DoInvalidate(dirlist)
}
func (dirlist *DirectoryList) Draw(ctx *ui.Context) {
ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
if dirlist.spinner.IsRunning() {
dirlist.spinner.Draw(ctx)
return
}
if len(dirlist.dirs) == 0 {
style := tcell.StyleDefault
ctx.Printf(0, 0, style, dirlist.uiConf.EmptyDirlist)
return
}
row := 0
for _, name := range dirlist.dirs {
if row >= ctx.Height() {
break
}
style := tcell.StyleDefault
if name == dirlist.selected {
style = style.Reverse(true)
}
ctx.Fill(0, row, ctx.Width(), 1, ' ', style)
ctx.Printf(0, row, style, "%s", name)
row++
}
}
func (dirlist *DirectoryList) nextPrev(delta int) {
for i, dir := range dirlist.dirs {
if dir == dirlist.selected {
var j int
ndirs := len(dirlist.dirs)
for j = i + delta; j != i; j += delta {
if j < 0 {
j = ndirs - 1
}
if j >= ndirs {
j = 0
}
name := dirlist.dirs[j]
if len(dirlist.acctConf.Folders) > 1 && name != dirlist.selected {
idx := sort.SearchStrings(dirlist.acctConf.Folders, name)
if idx == len(dirlist.acctConf.Folders) ||
dirlist.acctConf.Folders[idx] != name {
continue
}
}
break
}
dirlist.Select(dirlist.dirs[j])
break
}
}
}
func (dirlist *DirectoryList) Next() {
dirlist.nextPrev(1)
}
func (dirlist *DirectoryList) Prev() {
dirlist.nextPrev(-1)
}
// filterDirsByFoldersConfig sets dirlist.dirs to the filtered subset of the
// dirstore, based on the AccountConfig.Folders option
func (dirlist *DirectoryList) filterDirsByFoldersConfig() {
dirlist.dirs = dirlist.store.List()
// config option defaults to show all if unset
if len(dirlist.acctConf.Folders) == 0 {
return
}
var filtered []string
for _, folder := range dirlist.dirs {
for _, cfgfolder := range dirlist.acctConf.Folders {
if folder == cfgfolder {
filtered = append(filtered, folder)
break
}
}
}
dirlist.dirs = filtered
}