aerc/widgets/msglist.go
2019-03-14 21:37:00 -04:00

125 lines
2.3 KiB
Go

package widgets
import (
"log"
"github.com/gdamore/tcell"
"git.sr.ht/~sircmpwn/aerc2/config"
"git.sr.ht/~sircmpwn/aerc2/lib/ui"
"git.sr.ht/~sircmpwn/aerc2/worker/types"
)
type MessageStore struct {
DirInfo types.DirectoryInfo
Messages map[uint64]*types.MessageInfo
}
func NewMessageStore(dirInfo *types.DirectoryInfo) *MessageStore {
return &MessageStore{DirInfo: *dirInfo}
}
func (store *MessageStore) Update(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.DirectoryInfo:
store.DirInfo = *msg
break
case *types.DirectoryContents:
newMap := make(map[uint64]*types.MessageInfo)
for _, uid := range msg.Uids {
if msg, ok := store.Messages[uid]; ok {
newMap[uid] = msg
} else {
newMap[uid] = nil
}
}
store.Messages = newMap
break
case *types.MessageInfo:
store.Messages[msg.Uid] = msg
break
}
}
type MessageList struct {
conf *config.AercConfig
logger *log.Logger
onInvalidate func(d ui.Drawable)
spinner *Spinner
store *MessageStore
worker *types.Worker
}
// TODO: fish in config
func NewMessageList(logger *log.Logger, worker *types.Worker) *MessageList {
ml := &MessageList{
logger: logger,
spinner: NewSpinner(),
worker: worker,
}
ml.spinner.OnInvalidate(func(_ ui.Drawable) {
ml.Invalidate()
})
// TODO: stop spinner, probably
ml.spinner.Start()
return ml
}
func (ml *MessageList) OnInvalidate(onInvalidate func(d ui.Drawable)) {
ml.onInvalidate = onInvalidate
}
func (ml *MessageList) Invalidate() {
if ml.onInvalidate != nil {
ml.onInvalidate(ml)
}
}
func (ml *MessageList) Draw(ctx *ui.Context) {
ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
if ml.store == nil {
ml.spinner.Draw(ctx)
return
}
var (
needsHeaders []uint64
row int = 0
)
for uid, msg := range ml.store.Messages {
if row >= ctx.Height() {
break
}
if msg == nil {
needsHeaders = append(needsHeaders, uid)
ml.spinner.Draw(ctx.Subcontext(0, row, ctx.Width(), 1))
}
row += 1
}
if len(needsHeaders) != 0 {
ml.spinner.Start()
} else {
ml.spinner.Stop()
}
// TODO: Fetch these messages
}
func (ml *MessageList) SetStore(store *MessageStore) {
if ml.store == store {
return
}
ml.store = store
if store != nil {
ml.spinner.Stop()
} else {
ml.spinner.Start()
}
ml.Invalidate()
}