148 lines
2.8 KiB
Go
148 lines
2.8 KiB
Go
package widgets
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import (
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"log"
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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"
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"git.sr.ht/~sircmpwn/aerc2/lib/ui"
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)
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type MessageList struct {
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conf *config.AercConfig
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logger *log.Logger
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height int
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onInvalidate func(d ui.Drawable)
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scroll int
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selected int
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spinner *Spinner
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store *lib.MessageStore
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}
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// TODO: fish in config
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func NewMessageList(logger *log.Logger) *MessageList {
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ml := &MessageList{
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logger: logger,
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selected: 0,
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spinner: NewSpinner(),
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}
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ml.spinner.OnInvalidate(func(_ ui.Drawable) {
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ml.Invalidate()
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})
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// TODO: stop spinner, probably
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ml.spinner.Start()
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return ml
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}
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func (ml *MessageList) OnInvalidate(onInvalidate func(d ui.Drawable)) {
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ml.onInvalidate = onInvalidate
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}
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func (ml *MessageList) Invalidate() {
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if ml.onInvalidate != nil {
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ml.onInvalidate(ml)
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}
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}
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func (ml *MessageList) Draw(ctx *ui.Context) {
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ml.height = ctx.Height()
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ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
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if ml.store == nil {
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ml.spinner.Draw(ctx)
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return
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}
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var (
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needsHeaders []uint32
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row int = 0
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)
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for i := len(ml.store.Uids) - 1 - ml.scroll; i >= 0; i-- {
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uid := ml.store.Uids[i]
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msg := ml.store.Messages[uid]
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if row >= ctx.Height() {
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break
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}
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if msg == nil {
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needsHeaders = append(needsHeaders, uid)
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ml.spinner.Draw(ctx.Subcontext(0, row, ctx.Width(), 1))
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row += 1
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continue
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}
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style := tcell.StyleDefault
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if row == ml.selected-ml.scroll {
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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", msg.Envelope.Subject)
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row += 1
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}
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if len(needsHeaders) != 0 {
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ml.store.FetchHeaders(needsHeaders)
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ml.spinner.Start()
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} else {
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ml.spinner.Stop()
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}
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}
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func (ml *MessageList) Height() int {
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return ml.height
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}
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func (ml *MessageList) SetStore(store *lib.MessageStore) {
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if ml.store == store {
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ml.scroll = 0
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ml.selected = 0
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}
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ml.store = store
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if store != nil {
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ml.spinner.Stop()
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} else {
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ml.spinner.Start()
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}
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ml.Invalidate()
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}
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func (ml *MessageList) Select(index int) {
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ml.selected = index
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for ; ml.selected < 0; ml.selected = len(ml.store.Uids) + ml.selected {
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}
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if ml.selected > len(ml.store.Uids) {
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ml.selected = len(ml.store.Uids)
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}
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}
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func (ml *MessageList) nextPrev(delta int) {
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ml.selected += delta
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if ml.selected < 0 {
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ml.selected = 0
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}
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if ml.selected >= len(ml.store.Uids) {
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ml.selected = len(ml.store.Uids) - 1
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}
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if ml.Height() != 0 {
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if ml.selected-ml.scroll >= ml.Height() {
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ml.scroll += 1
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} else if ml.selected-ml.scroll < 0 {
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ml.scroll -= 1
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}
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}
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ml.Invalidate()
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}
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func (ml *MessageList) Next() {
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ml.nextPrev(1)
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}
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func (ml *MessageList) Prev() {
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ml.nextPrev(-1)
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}
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