1 files changed, 0 insertions, 354 deletions
diff --git a/ui/widget/message-view.go b/ui/widget/message-view.go
deleted file mode 100644
index f0bdbad..0000000
--- a/ui/widget/message-view.go
+++ /dev/null
@@ -1,354 +0,0 @@
-// gomuks - A terminal Matrix client written in Go.
-// Copyright (C) 2018 Tulir Asokan
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package widget
-
-import (
-	"encoding/gob"
-	"fmt"
-	"math"
-	"os"
-	"time"
-
-	"github.com/gdamore/tcell"
-	"maunium.net/go/gomuks/ui/debug"
-	"maunium.net/go/gomuks/ui/types"
-	"maunium.net/go/tview"
-)
-
-type MessageView struct {
-	*tview.Box
-
-	ScrollOffset    int
-	MaxSenderWidth  int
-	DateFormat      string
-	TimestampFormat string
-	TimestampWidth  int
-	LoadingMessages bool
-
-	widestSender int
-	prevWidth    int
-	prevHeight   int
-	prevMsgCount int
-
-	messageIDs map[string]*types.Message
-	messages   []*types.Message
-
-	textBuffer []string
-	metaBuffer []types.MessageMeta
-}
-
-func NewMessageView() *MessageView {
-	return &MessageView{
-		Box:             tview.NewBox(),
-		MaxSenderWidth:  15,
-		DateFormat:      "January _2, 2006",
-		TimestampFormat: "15:04:05",
-		TimestampWidth:  8,
-		ScrollOffset:    0,
-
-		messages:   make([]*types.Message, 0),
-		messageIDs: make(map[string]*types.Message),
-		textBuffer: make([]string, 0),
-		metaBuffer: make([]types.MessageMeta, 0),
-
-		widestSender: 5,
-		prevWidth:    -1,
-		prevHeight:   -1,
-		prevMsgCount: -1,
-	}
-}
-
-func (view *MessageView) NewMessage(id, sender, msgtype, text string, timestamp time.Time) *types.Message {
-	return types.NewMessage(id, sender, msgtype, text,
-		timestamp.Format(view.TimestampFormat),
-		timestamp.Format(view.DateFormat),
-		GetHashColor(sender))
-}
-
-func (view *MessageView) SaveHistory(path string) error {
-	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE, 0600)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	enc := gob.NewEncoder(file)
-	err = enc.Encode(view.messages)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (view *MessageView) LoadHistory(path string) (int, error) {
-	file, err := os.OpenFile(path, os.O_RDONLY, 0600)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return 0, nil
-		}
-		return -1, err
-	}
-	defer file.Close()
-
-	dec := gob.NewDecoder(file)
-	err = dec.Decode(&view.messages)
-	if err != nil {
-		return -1, err
-	}
-
-	for _, message := range view.messages {
-		view.updateWidestSender(message.Sender)
-	}
-
-	return len(view.messages), nil
-}
-
-func (view *MessageView) updateWidestSender(sender string) {
-	if len(sender) > view.widestSender {
-		view.widestSender = len(sender)
-		if view.widestSender > view.MaxSenderWidth {
-			view.widestSender = view.MaxSenderWidth
-		}
-	}
-}
-
-type MessageDirection int
-
-const (
-	AppendMessage MessageDirection = iota
-	PrependMessage
-	IgnoreMessage
-)
-
-func (view *MessageView) UpdateMessageID(message *types.Message, newID string) {
-	delete(view.messageIDs, message.ID)
-	message.ID = newID
-	view.messageIDs[message.ID] = message
-}
-
-func (view *MessageView) AddMessage(message *types.Message, direction MessageDirection) {
-	if message == nil {
-		return
-	}
-
-	msg, messageExists := view.messageIDs[message.ID]
-	if msg != nil && messageExists {
-		message.CopyTo(msg)
-		message = msg
-		direction = IgnoreMessage
-	}
-
-	view.updateWidestSender(message.Sender)
-
-	_, _, width, _ := view.GetInnerRect()
-	width -= view.TimestampWidth + TimestampSenderGap + view.widestSender + SenderMessageGap
-	message.CalculateBuffer(width)
-
-	if direction == AppendMessage {
-		if view.ScrollOffset > 0 {
-			view.ScrollOffset += message.Height()
-		}
-		view.messages = append(view.messages, message)
-		view.appendBuffer(message)
-	} else if direction == PrependMessage {
-		view.messages = append([]*types.Message{message}, view.messages...)
-	}
-
-	view.messageIDs[message.ID] = message
-}
-
-func (view *MessageView) appendBuffer(message *types.Message) {
-	if len(view.metaBuffer) > 0 {
-		prevMeta := view.metaBuffer[len(view.metaBuffer)-1]
-		if prevMeta != nil && prevMeta.GetDate() != message.Date {
-			view.textBuffer = append(view.textBuffer, fmt.Sprintf("Date changed to %s", message.Date))
-			view.metaBuffer = append(view.metaBuffer, &types.BasicMeta{TextColor: tcell.ColorGreen})
-		}
-	}
-
-	view.textBuffer = append(view.textBuffer, message.Buffer()...)
-	for range message.Buffer() {
-		view.metaBuffer = append(view.metaBuffer, message)
-	}
-	view.prevMsgCount++
-}
-
-func (view *MessageView) recalculateBuffers() {
-	_, _, width, height := view.GetInnerRect()
-
-	width -= view.TimestampWidth + TimestampSenderGap + view.widestSender + SenderMessageGap
-	recalculateMessageBuffers := width != view.prevWidth
-	if height != view.prevHeight || recalculateMessageBuffers || len(view.messages) != view.prevMsgCount {
-		view.textBuffer = []string{}
-		view.metaBuffer = []types.MessageMeta{}
-		view.prevMsgCount = 0
-		for _, message := range view.messages {
-			if recalculateMessageBuffers {
-				message.CalculateBuffer(width)
-			}
-			view.appendBuffer(message)
-		}
-		view.prevHeight = height
-		view.prevWidth = width
-	}
-}
-
-const PaddingAtTop = 5
-
-func (view *MessageView) AddScrollOffset(diff int) {
-	_, _, _, height := view.GetInnerRect()
-
-	totalHeight := len(view.textBuffer)
-	if diff >= 0 && view.ScrollOffset+diff >= totalHeight-height+PaddingAtTop {
-		view.ScrollOffset = totalHeight - height + PaddingAtTop
-	} else {
-		view.ScrollOffset += diff
-	}
-
-	if view.ScrollOffset > totalHeight-height+PaddingAtTop {
-		view.ScrollOffset = totalHeight - height + PaddingAtTop
-	}
-	if view.ScrollOffset < 0 {
-		view.ScrollOffset = 0
-	}
-}
-
-func (view *MessageView) Height() int {
-	_, _, _, height := view.GetInnerRect()
-	return height
-}
-
-func (view *MessageView) TotalHeight() int {
-	return len(view.textBuffer)
-}
-
-func (view *MessageView) IsAtTop() bool {
-	_, _, _, height := view.GetInnerRect()
-	totalHeight := len(view.textBuffer)
-	return view.ScrollOffset >= totalHeight-height+PaddingAtTop
-}
-
-const (
-	TimestampSenderGap = 1
-	SenderSeparatorGap = 1
-	SenderMessageGap   = 3
-)
-
-func getScrollbarStyle(scrollbarHere, isTop, isBottom bool) (char rune, style tcell.Style) {
-	char = '│'
-	style = tcell.StyleDefault
-	if scrollbarHere {
-		style = style.Foreground(tcell.ColorGreen)
-	}
-	if isTop {
-		if scrollbarHere {
-			char = '╥'
-		} else {
-			char = '┬'
-		}
-	} else if isBottom {
-		if scrollbarHere {
-			char = '╨'
-		} else {
-			char = '┴'
-		}
-	} else if scrollbarHere {
-		char = '║'
-	}
-	return
-}
-
-func (view *MessageView) Draw(screen tcell.Screen) {
-	view.Box.Draw(screen)
-
-	x, y, _, height := view.GetInnerRect()
-	view.recalculateBuffers()
-
-	if len(view.textBuffer) == 0 {
-		writeLineSimple(screen, "It's quite empty in here.", x, y+height)
-		return
-	}
-
-	usernameX := x + view.TimestampWidth + TimestampSenderGap
-	messageX := usernameX + view.widestSender + SenderMessageGap
-	separatorX := usernameX + view.widestSender + SenderSeparatorGap
-
-	indexOffset := len(view.textBuffer) - view.ScrollOffset - height
-	if indexOffset <= -PaddingAtTop {
-		message := "Scroll up to load more messages."
-		if view.LoadingMessages {
-			message = "Loading more messages..."
-		}
-		writeLineSimpleColor(screen, message, messageX, y, tcell.ColorGreen)
-	}
-
-	if len(view.textBuffer) != len(view.metaBuffer) {
-		debug.ExtPrintf("Unexpected text/meta buffer length mismatch: %d != %d.", len(view.textBuffer), len(view.metaBuffer))
-		return
-	}
-
-	var scrollBarHeight, scrollBarPos int
-	// Black magic (aka math) used to figure out where the scroll bar should be put.
-	{
-		viewportHeight := float64(height)
-		contentHeight := float64(len(view.textBuffer))
-
-		scrollBarHeight = int(math.Ceil(viewportHeight / (contentHeight / viewportHeight)))
-
-		scrollBarPos = height - int(math.Round(float64(view.ScrollOffset)/contentHeight*viewportHeight))
-	}
-
-	var prevMeta types.MessageMeta
-	firstLine := true
-	skippedLines := 0
-
-	for line := 0; line < height; line++ {
-		index := indexOffset + line
-		if index < 0 {
-			skippedLines++
-			continue
-		} else if index >= len(view.textBuffer) {
-			break
-		}
-
-		showScrollbar := line-skippedLines >= scrollBarPos-scrollBarHeight && line-skippedLines < scrollBarPos
-		isTop := firstLine && view.ScrollOffset+height >= len(view.textBuffer)
-		isBottom := line == height-1 && view.ScrollOffset == 0
-
-		borderChar, borderStyle := getScrollbarStyle(showScrollbar, isTop, isBottom)
-
-		firstLine = false
-
-		screen.SetContent(separatorX, y+line, borderChar, nil, borderStyle)
-
-		text, meta := view.textBuffer[index], view.metaBuffer[index]
-		if meta != prevMeta {
-			if len(meta.GetTimestamp()) > 0 {
-				writeLineSimpleColor(screen, meta.GetTimestamp(), x, y+line, meta.GetTimestampColor())
-			}
-			if prevMeta == nil || meta.GetSender() != prevMeta.GetSender() {
-				writeLineColor(
-					screen, tview.AlignRight, meta.GetSender(),
-					usernameX, y+line, view.widestSender,
-					meta.GetSenderColor())
-			}
-			prevMeta = meta
-		}
-		writeLineSimpleColor(screen, text, messageX, y+line, meta.GetTextColor())
-	}
-}