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authorSilvino Silva <silvino@bk.ru>2017-03-01 21:26:01 +0000
committerSilvino Silva <silvino@bk.ru>2017-03-01 21:26:01 +0000
commit40fc398cab05e1ae769554a50fb423ca38c3bfb6 (patch)
tree7bfd2a5059a40bc3ffe42d6b59b9158492f86f4d /tools/conf/etc/skel/.xinitrc
parent0fd1b8a98b4d31a97070a983114e18bc6f9a7290 (diff)
downloaddoc-40fc398cab05e1ae769554a50fb423ca38c3bfb6.tar.gz
6c37 ports configuration updated
Diffstat (limited to 'tools/conf/etc/skel/.xinitrc')
0 files changed, 0 insertions, 0 deletions
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package widgets

import (
	"fmt"
	"log"

	"github.com/emersion/go-imap"
	"github.com/gdamore/tcell"
	"github.com/mattn/go-runewidth"

	"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 MessageList struct {
	ui.Invalidatable
	conf    *config.AercConfig
	logger  *log.Logger
	height  int
	scroll  int
	nmsgs   int
	spinner *Spinner
	store   *lib.MessageStore
}

func NewMessageList(conf *config.AercConfig, logger *log.Logger) *MessageList {
	ml := &MessageList{
		conf:    conf,
		logger:  logger,
		spinner: NewSpinner(),
	}
	ml.spinner.OnInvalidate(func(_ ui.Drawable) {
		ml.Invalidate()
	})
	// TODO: stop spinner, probably
	ml.spinner.Start()
	return ml
}

func (ml *MessageList) Invalidate() {
	ml.DoInvalidate(ml)
}

func (ml *MessageList) Draw(ctx *ui.Context) {
	ml.height = ctx.Height()
	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)

	store := ml.Store()
	if store == nil {
		ml.spinner.Draw(ctx)
		return
	}

	var (
		needsHeaders []uint32
		row          int = 0
	)

	for i := len(store.Uids) - 1 - ml.scroll; i >= 0; i-- {
		uid := store.Uids[i]
		msg := store.Messages[uid]

		if row >= ctx.Height() {
			break
		}

		if msg == nil {
			needsHeaders = append(needsHeaders, uid)
			ml.spinner.Draw(ctx.Subcontext(0, row, ctx.Width(), 1))
			row += 1
			continue
		}

		style := tcell.StyleDefault

		// current row
		if row == ml.store.SelectedIndex()-ml.scroll {
			style = style.Reverse(true)
		}
		// deleted message
		if _, ok := store.Deleted[msg.Uid]; ok {
			style = style.Foreground(tcell.ColorGray)
		}
		// unread message
		seen := false
		for _, flag := range msg.Flags {
			if flag == imap.SeenFlag {
				seen = true
			}
		}
		if !seen {
			style = style.Bold(true)
		}

		ctx.Fill(0, row, ctx.Width(), 1, ' ', style)
		fmtStr, args, err := lib.ParseIndexFormat(ml.conf, i, msg)
		if err != nil {
			ctx.Printf(0, row, style, "%v", err)
		} else {
			line := fmt.Sprintf(fmtStr, args...)
			line = runewidth.Truncate(line, ctx.Width(), "…")
			ctx.Printf(0, row, style, "%s", line)
		}

		row += 1
	}

	if len(store.Uids) == 0 {
		msg := ml.conf.Ui.EmptyMessage
		ctx.Printf((ctx.Width()/2)-(len(msg)/2), 0,
			tcell.StyleDefault, "%s", msg)
	}

	if len(needsHeaders) != 0 {
		store.FetchHeaders(needsHeaders, nil)
		ml.spinner.Start()
	} else {
		ml.spinner.Stop()
	}
}

func (ml *MessageList) Height() int {
	return ml.height
}

func (ml *MessageList) storeUpdate(store *lib.MessageStore) {
	if ml.Store() != store {
		return
	}

	if len(store.Uids) > 0 {
		// When new messages come in, advance the cursor accordingly
		// Note that this assumes new messages are appended to the top, which
		// isn't necessarily true once we implement SORT... ideally we'd look
		// for the previously selected UID.
		if len(store.Uids) > ml.nmsgs && ml.nmsgs != 0 {
			for i := 0; i < len(store.Uids)-ml.nmsgs; i++ {
				ml.Store().Next()
			}
		}
		if len(store.Uids) < ml.nmsgs && ml.nmsgs != 0 {
			for i := 0; i < ml.nmsgs-len(store.Uids); i++ {
				ml.Store().Prev()
			}
		}
		ml.nmsgs = len(store.Uids)
	}

	ml.Invalidate()
}

func (ml *MessageList) SetStore(store *lib.MessageStore) {
	if ml.Store() != store {
		ml.scroll = 0
	}
	ml.store = store
	if store != nil {
		ml.spinner.Stop()
		ml.nmsgs = len(store.Uids)
		store.OnUpdate(ml.storeUpdate)
	} else {
		ml.spinner.Start()
	}
	ml.Invalidate()
}

func (ml *MessageList) Store() *lib.MessageStore {
	return ml.store
}

func (ml *MessageList) Empty() bool {
	store := ml.Store()
	return store == nil || len(store.Uids) == 0
}

func (ml *MessageList) Selected() *types.MessageInfo {
	store := ml.Store()
	return store.Messages[store.Uids[len(store.Uids)-ml.store.SelectedIndex()-1]]
}

func (ml *MessageList) Select(index int) {
	store := ml.Store()
	store.Select(index)

	// I'm too lazy to do the math right now
	for store.SelectedIndex()-ml.scroll >= ml.Height() {
		ml.scroll += 1
	}
	for store.SelectedIndex()-ml.scroll < 0 {
		ml.scroll -= 1
	}
}

func (ml *MessageList) Scroll() {
	store := ml.Store()

	if store == nil || len(store.Uids) == 0 {
		return
	}
	if ml.Height() != 0 {
		if store.SelectedIndex()-ml.scroll >= ml.Height() {
			ml.scroll += 1
		} else if store.SelectedIndex()-ml.scroll < 0 {
			ml.scroll -= 1
		}
	}
	ml.Invalidate()
}