gomuks/ui/view-main.go
2019-03-28 23:28:27 +02:00

542 lines
15 KiB
Go

// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2019 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package ui
import (
"bufio"
"fmt"
"os"
"time"
"unicode"
"github.com/kyokomi/emoji"
"maunium.net/go/mautrix"
"maunium.net/go/mauview"
"maunium.net/go/tcell"
"maunium.net/go/gomuks/config"
"maunium.net/go/gomuks/debug"
"maunium.net/go/gomuks/interface"
"maunium.net/go/gomuks/lib/notification"
"maunium.net/go/gomuks/matrix/pushrules"
"maunium.net/go/gomuks/matrix/rooms"
"maunium.net/go/gomuks/ui/messages/parser"
"maunium.net/go/gomuks/ui/widget"
)
type MainView struct {
flex *mauview.Flex
roomList *RoomList
roomView *mauview.Box
currentRoom *RoomView
rooms map[string]*RoomView
cmdProcessor *CommandProcessor
focused mauview.Focusable
modal mauview.Component
lastFocusTime time.Time
matrix ifc.MatrixContainer
gmx ifc.Gomuks
config *config.Config
parent *GomuksUI
}
func (ui *GomuksUI) NewMainView() mauview.Component {
mainView := &MainView{
flex: mauview.NewFlex().SetDirection(mauview.FlexColumn),
roomView: mauview.NewBox(nil).SetBorder(false),
rooms: make(map[string]*RoomView),
matrix: ui.gmx.Matrix(),
gmx: ui.gmx,
config: ui.gmx.Config(),
parent: ui,
}
mainView.roomList = NewRoomList(mainView)
mainView.cmdProcessor = NewCommandProcessor(mainView)
mainView.flex.
AddFixedComponent(mainView.roomList, 25).
AddFixedComponent(widget.NewBorder(), 1).
AddProportionalComponent(mainView.roomView, 1)
mainView.BumpFocus(nil)
ui.mainView = mainView
return mainView
}
func (view *MainView) ShowModal(modal mauview.Component) {
view.modal = modal
var ok bool
view.focused, ok = modal.(mauview.Focusable)
if !ok {
view.focused = nil
} else {
view.focused.Focus()
}
}
func (view *MainView) HideModal() {
view.modal = nil
view.focused = view.roomView
}
func (view *MainView) Draw(screen mauview.Screen) {
if view.config.Preferences.HideRoomList {
view.roomView.Draw(screen)
} else {
view.flex.Draw(screen)
}
if view.modal != nil {
view.modal.Draw(screen)
}
}
func (view *MainView) BumpFocus(roomView *RoomView) {
if roomView != nil {
view.lastFocusTime = time.Now()
view.MarkRead(roomView)
}
}
func (view *MainView) MarkRead(roomView *RoomView) {
if roomView != nil && roomView.Room.HasNewMessages() && roomView.MessageView().ScrollOffset == 0 {
msgList := roomView.MessageView().messages
msg := msgList[len(msgList)-1]
roomView.Room.MarkRead(msg.ID())
view.matrix.MarkRead(roomView.Room.ID, msg.ID())
}
}
func (view *MainView) InputChanged(roomView *RoomView, text string) {
if !roomView.config.Preferences.DisableTypingNotifs {
if len(text) == 0 {
go view.matrix.SendTyping(roomView.Room.ID, false)
} else if text[0] != '/' {
go view.matrix.SendTyping(roomView.Room.ID, true)
}
}
}
func findWordToTabComplete(text string) string {
output := ""
runes := []rune(text)
for i := len(runes) - 1; i >= 0; i-- {
if unicode.IsSpace(runes[i]) {
break
}
output = string(runes[i]) + output
}
return output
}
func (view *MainView) InputSubmit(roomView *RoomView, text string) {
if len(text) == 0 {
return
} else if text[0] == '/' {
cmd := view.cmdProcessor.ParseCommand(roomView, text)
go view.cmdProcessor.HandleCommand(cmd)
} else {
view.SendMessage(roomView, text)
}
roomView.SetInputText("")
}
func (view *MainView) SendMessage(roomView *RoomView, text string) {
tempMessage := roomView.NewTempMessage("m.text", text)
go view.sendTempMessage(roomView, tempMessage, text)
}
func (view *MainView) sendTempMessage(roomView *RoomView, tempMessage ifc.Message, text string) {
defer debug.Recover()
debug.Print("Sending message", tempMessage.Type(), text)
if !roomView.config.Preferences.DisableEmojis {
text = emoji.Sprint(text)
}
eventID, err := view.matrix.SendMarkdownMessage(roomView.Room.ID, tempMessage.Type(), text)
if err != nil {
tempMessage.SetState(ifc.MessageStateFailed)
if httpErr, ok := err.(mautrix.HTTPError); ok {
if respErr := httpErr.RespError; respErr != nil {
// Show shorter version if available
err = respErr
}
}
roomView.AddServiceMessage(fmt.Sprintf("Failed to send message: %v", err))
view.parent.Render()
} else {
debug.Print("Event ID received:", eventID)
roomView.MessageView().UpdateMessageID(tempMessage, eventID)
}
}
func (view *MainView) ShowBare(roomView *RoomView) {
if roomView == nil {
return
}
_, height := view.parent.app.Screen().Size()
view.parent.app.Suspend(func() {
print("\033[2J\033[0;0H")
// We don't know how much space there exactly is. Too few messages looks weird,
// and too many messages shouldn't cause any problems, so we just show too many.
height *= 2
fmt.Println(roomView.MessageView().CapturePlaintext(height))
fmt.Println("Press enter to return to normal mode.")
reader := bufio.NewReader(os.Stdin)
reader.ReadRune()
print("\033[2J\033[0;0H")
})
}
func (view *MainView) OnKeyEvent(event mauview.KeyEvent) bool {
view.BumpFocus(view.currentRoom)
if view.modal != nil {
return view.modal.OnKeyEvent(event)
}
k := event.Key()
c := event.Rune()
if event.Modifiers() == tcell.ModCtrl || event.Modifiers() == tcell.ModAlt {
switch {
case k == tcell.KeyDown:
view.SwitchRoom(view.roomList.Next())
case k == tcell.KeyUp:
view.SwitchRoom(view.roomList.Previous())
case k == tcell.KeyEnter:
view.ShowModal(NewFuzzySearchModal(view, 42, 12))
case k == tcell.KeyHome:
msgView := view.currentRoom.MessageView()
msgView.AddScrollOffset(msgView.TotalHeight())
case k == tcell.KeyEnd:
msgView := view.currentRoom.MessageView()
msgView.AddScrollOffset(-msgView.TotalHeight())
case k == tcell.KeyCtrlN:
return view.flex.OnKeyEvent(tcell.NewEventKey(tcell.KeyEnter, '\n', event.Modifiers()))
case c == 'a':
view.SwitchRoom(view.roomList.NextWithActivity())
case c == 'l':
view.ShowBare(view.currentRoom)
default:
goto defaultHandler
}
return true
} else if k == tcell.KeyAltDown || k == tcell.KeyCtrlDown {
view.SwitchRoom(view.roomList.Next())
return true
} else if k == tcell.KeyAltUp || k == tcell.KeyCtrlUp {
view.SwitchRoom(view.roomList.Previous())
return true
} else if view.currentRoom != nil &&
(k == tcell.KeyPgUp || k == tcell.KeyPgDn ||
k == tcell.KeyUp || k == tcell.KeyDown ||
k == tcell.KeyEnd || k == tcell.KeyHome) {
// TODO these should be in the RoomView key handler
msgView := view.currentRoom.MessageView()
if msgView.IsAtTop() && (k == tcell.KeyPgUp || k == tcell.KeyUp) {
go view.LoadHistory(view.currentRoom.Room.ID)
}
switch k {
case tcell.KeyPgUp:
msgView.AddScrollOffset(msgView.Height() / 2)
case tcell.KeyPgDn:
msgView.AddScrollOffset(-msgView.Height() / 2)
default:
goto defaultHandler
}
return true
} else if k == tcell.KeyEnter {
view.InputSubmit(view.currentRoom, view.currentRoom.input.GetText())
return true
}
defaultHandler:
if view.config.Preferences.HideRoomList {
debug.Print("Key event going to default handler (direct to roomview)", event)
return view.roomView.OnKeyEvent(event)
}
debug.Print("Key event going to default handler (flex)", event)
return view.flex.OnKeyEvent(event)
}
const WheelScrollOffsetDiff = 3
func (view *MainView) OnMouseEvent(event mauview.MouseEvent) bool {
if view.modal != nil {
return view.modal.OnMouseEvent(event)
}
if view.config.Preferences.HideRoomList {
return view.roomView.OnMouseEvent(event)
}
return view.flex.OnMouseEvent(event)
/*if event.Buttons() == tcell.ButtonNone || event.HasMotion() {
return false
}
view.BumpFocus(view.currentRoom)
x, y := event.Position()
switch {
case x >= 27:
view.roomView.OnMouseEvent(mauview.OffsetMouseEvent(event, -27, 0))
view.roomView.Focus()
view.focused = view.roomView
case x <= 25:
view.roomList.OnMouseEvent(event)
view.roomList.Focus()
view.focused = view.roomList
default:
debug.Print("Unhandled mouse event:", event.Buttons(), event.Modifiers(), x, y)
}
return false*/
}
func (view *MainView) OnPasteEvent(event mauview.PasteEvent) bool {
if view.modal != nil {
return view.modal.OnPasteEvent(event)
} else if view.config.Preferences.HideRoomList {
return view.roomView.OnPasteEvent(event)
}
return view.flex.OnPasteEvent(event)
}
func (view *MainView) Focus() {
if view.focused != nil {
view.focused.Focus()
}
}
func (view *MainView) Blur() {
if view.focused != nil {
view.focused.Blur()
}
}
func (view *MainView) SwitchRoom(tag string, room *rooms.Room) {
if room == nil {
return
}
roomView := view.rooms[room.ID]
if roomView == nil {
debug.Print("Tried to switch to non-nil room with nil roomView!")
debug.Print(tag, room)
return
}
view.roomView.SetInnerComponent(roomView)
view.currentRoom = roomView
view.MarkRead(roomView)
view.roomList.SetSelected(tag, room)
view.parent.Render()
}
func (view *MainView) SaveAllHistory() {
for _, room := range view.rooms {
err := room.SaveHistory(view.config.HistoryDir)
if err != nil {
debug.Printf("Failed to save history of %s: %v", room.Room.GetTitle(), err)
}
}
}
func (view *MainView) addRoomPage(room *rooms.Room) {
if _, ok := view.rooms[room.ID]; !ok {
roomView := NewRoomView(view, room).
SetInputSubmitFunc(view.InputSubmit).
SetInputChangedFunc(view.InputChanged)
view.rooms[room.ID] = roomView
roomView.UpdateUserList()
_, err := roomView.LoadHistory(view.matrix, view.config.HistoryDir)
if err != nil {
debug.Printf("Failed to load history of %s: %v", roomView.Room.GetTitle(), err)
}
}
}
func (view *MainView) GetRoom(roomID string) ifc.RoomView {
room, ok := view.rooms[roomID]
if !ok {
view.AddRoom(view.matrix.GetRoom(roomID))
room, ok := view.rooms[roomID]
if !ok {
return nil
}
return room
}
return room
}
func (view *MainView) AddRoom(room *rooms.Room) {
if view.roomList.Contains(room.ID) {
debug.Print("Add aborted (room exists)", room.ID, room.GetTitle())
return
}
debug.Print("Adding", room.ID, room.GetTitle())
view.roomList.Add(room)
view.addRoomPage(room)
if !view.roomList.HasSelected() {
view.SwitchRoom(view.roomList.First())
}
}
func (view *MainView) RemoveRoom(room *rooms.Room) {
roomView := view.GetRoom(room.ID)
if roomView == nil {
debug.Print("Remove aborted (not found)", room.ID, room.GetTitle())
return
}
debug.Print("Removing", room.ID, room.GetTitle())
view.roomList.Remove(room)
view.SwitchRoom(view.roomList.Selected())
delete(view.rooms, room.ID)
view.parent.Render()
}
func (view *MainView) SetRooms(rooms map[string]*rooms.Room) {
view.roomList.Clear()
view.rooms = make(map[string]*RoomView)
for _, room := range rooms {
if room.HasLeft {
continue
}
view.roomList.Add(room)
view.addRoomPage(room)
}
view.SwitchRoom(view.roomList.First())
}
func (view *MainView) UpdateTags(room *rooms.Room) {
if !view.roomList.Contains(room.ID) {
return
}
view.roomList.Remove(room)
view.roomList.Add(room)
}
func (view *MainView) SetTyping(room string, users []string) {
roomView, ok := view.rooms[room]
if ok {
roomView.SetTyping(users)
view.parent.Render()
}
}
func sendNotification(room *rooms.Room, sender, text string, critical, sound bool) {
if room.GetTitle() != sender {
sender = fmt.Sprintf("%s (%s)", sender, room.GetTitle())
}
debug.Printf("Sending notification with body \"%s\" from %s in room ID %s (critical=%v, sound=%v)", text, sender, room.ID, critical, sound)
notification.Send(sender, text, critical, sound)
}
func (view *MainView) NotifyMessage(room *rooms.Room, message ifc.Message, should pushrules.PushActionArrayShould) {
view.roomList.Bump(room)
if message.SenderID() == view.config.UserID {
return
}
// Whether or not the room where the message came is the currently shown room.
isCurrent := room == view.roomList.SelectedRoom()
// Whether or not the terminal window is focused.
recentlyFocused := time.Now().Add(-30 * time.Second).Before(view.lastFocusTime)
isFocused := time.Now().Add(-5 * time.Second).Before(view.lastFocusTime)
// Whether or not the push rules say this message should be notified about.
shouldNotify := should.Notify || !should.NotifySpecified
if !isCurrent || !isFocused {
// The message is not in the current room, show new message status in room list.
room.AddUnread(message.ID(), shouldNotify, should.Highlight)
} else {
view.matrix.MarkRead(room.ID, message.ID())
}
if shouldNotify && !recentlyFocused {
// Push rules say notify and the terminal is not focused, send desktop notification.
shouldPlaySound := should.PlaySound && should.SoundName == "default"
sendNotification(room, message.Sender(), message.NotificationContent(), should.Highlight, shouldPlaySound)
}
message.SetIsHighlight(should.Highlight)
}
func (view *MainView) InitialSyncDone() {
view.roomList.Clear()
for _, room := range view.rooms {
view.roomList.Add(room.Room)
room.UpdateUserList()
}
}
func (view *MainView) LoadHistory(room string) {
defer debug.Recover()
roomView := view.rooms[room]
batch := roomView.Room.PrevBatch
lockTime := time.Now().Unix() + 1
roomView.Room.LockHistory()
roomView.MessageView().LoadingMessages = true
defer func() {
roomView.Room.UnlockHistory()
roomView.MessageView().LoadingMessages = false
}()
// There's no clean way to try to lock a mutex, so we just check if we still
// want to continue after we get the lock. This function should always be ran
// in a goroutine, so the blocking doesn't matter.
if time.Now().Unix() >= lockTime || batch != roomView.Room.PrevBatch {
return
}
debug.Print("Fetching history for", room, "starting from", batch)
history, prevBatch, err := view.matrix.GetHistory(roomView.Room.ID, batch, 50)
if err != nil {
roomView.AddServiceMessage("Failed to fetch history")
debug.Print("Failed to fetch history for", roomView.Room.ID, err)
return
}
roomView.Room.PrevBatch = prevBatch
for _, evt := range history {
message := view.ParseEvent(roomView, evt)
if message != nil {
roomView.AddMessage(message, ifc.PrependMessage)
}
}
err = roomView.SaveHistory(view.config.HistoryDir)
if err != nil {
debug.Printf("Failed to save history of %s: %v", roomView.Room.GetTitle(), err)
}
view.config.PutRoom(roomView.Room)
view.parent.Render()
}
func (view *MainView) ParseEvent(roomView ifc.RoomView, evt *mautrix.Event) ifc.Message {
return parser.ParseEvent(view.matrix, roomView.MxRoom(), evt)
}