internal/action/bufpane.go

   1 package action
   2
   3 import (
   4         "strings"
   5         "time"
   6
   7         luar "layeh.com/gopher-luar"
   8
   9         lua "github.com/yuin/gopher-lua"
  10         "github.com/zyedidia/micro/v2/internal/buffer"
  11         "github.com/zyedidia/micro/v2/internal/config"
  12         "github.com/zyedidia/micro/v2/internal/display"
  13         ulua "github.com/zyedidia/micro/v2/internal/lua"
  14         "github.com/zyedidia/micro/v2/internal/screen"
  15         "github.com/zyedidia/tcell"
  16 )
  17
  18 type BufKeyAction func(*BufPane) bool
  19 type BufMouseAction func(*BufPane, *tcell.EventMouse) bool
  20
  21 var BufKeyBindings map[Event]BufKeyAction
  22 var BufKeyStrings map[Event]string
  23 var BufMouseBindings map[MouseEvent]BufMouseAction
  24
  25 func init() {
  26         BufKeyBindings = make(map[Event]BufKeyAction)
  27         BufKeyStrings = make(map[Event]string)
  28         BufMouseBindings = make(map[MouseEvent]BufMouseAction)
  29 }
  30
  31 func LuaAction(fn string) func(*BufPane) bool {
  32         luaFn := strings.Split(fn, ".")
  33         if len(luaFn) <= 1 {
  34                 return nil
  35         }
  36         plName, plFn := luaFn[0], luaFn[1]
  37         pl := config.FindPlugin(plName)
  38         if pl == nil {
  39                 return nil
  40         }
  41         return func(h *BufPane) bool {
  42                 val, err := pl.Call(plFn, luar.New(ulua.L, h))
  43                 if err != nil {
  44                         screen.TermMessage(err)
  45                 }
  46                 if v, ok := val.(lua.LBool); !ok {
  47                         return false
  48                 } else {
  49                         return bool(v)
  50                 }
  51         }
  52 }
  53
  54 // BufMapKey maps a key event to an action
  55 func BufMapKey(k Event, action string) {
  56         BufKeyStrings[k] = action
  57         var actionfns []func(*BufPane) bool
  58         var names []string
  59         var types []byte
  60         for i := 0; ; i++ {
  61                 if action == "" {
  62                         break
  63                 }
  64
  65                 // TODO: fix problem when complex bindings have these
  66                 // characters (escape them?)
  67                 idx := strings.IndexAny(action, "&|,")
  68                 a := action
  69                 if idx >= 0 {
  70                         a = action[:idx]
  71                         types = append(types, action[idx])
  72                         action = action[idx+1:]
  73                 } else {
  74                         types = append(types, ' ')
  75                         action = ""
  76                 }
  77
  78                 var afn func(*BufPane) bool
  79                 if strings.HasPrefix(a, "command:") {
  80                         a = strings.SplitN(a, ":", 2)[1]
  81                         afn = CommandAction(a)
  82                         names = append(names, "")
  83                 } else if strings.HasPrefix(a, "command-edit:") {
  84                         a = strings.SplitN(a, ":", 2)[1]
  85                         afn = CommandEditAction(a)
  86                         names = append(names, "")
  87                 } else if strings.HasPrefix(a, "lua:") {
  88                         a = strings.SplitN(a, ":", 2)[1]
  89                         afn = LuaAction(a)
  90                         if afn == nil {
  91                                 screen.TermMessage("Lua Error:", a, "does not exist")
  92                                 continue
  93                         }
  94                         split := strings.SplitN(a, ".", 2)
  95                         if len(split) > 1 {
  96                                 a = strings.Title(split[0]) + strings.Title(split[1])
  97                         } else {
  98                                 a = strings.Title(a)
  99                         }
 100
 101                         names = append(names, a)
 102                 } else if f, ok := BufKeyActions[a]; ok {
 103                         afn = f
 104                         names = append(names, a)
 105                 } else {
 106                         screen.TermMessage("Error in bindings: action", a, "does not exist")
 107                         continue
 108                 }
 109                 actionfns = append(actionfns, afn)
 110         }
 111         BufKeyBindings[k] = func(h *BufPane) bool {
 112                 cursors := h.Buf.GetCursors()
 113                 success := true
 114                 for i, a := range actionfns {
 115                         for j, c := range cursors {
 116                                 if c == nil {
 117                                         continue
 118                                 }
 119                                 h.Buf.SetCurCursor(c.Num)
 120                                 h.Cursor = c
 121                                 if i == 0 || (success && types[i-1] == '&') || (!success && types[i-1] == '|') || (types[i-1] == ',') {
 122                                         success = h.execAction(a, names[i], j)
 123                                 } else {
 124                                         break
 125                                 }
 126                         }
 127                 }
 128                 return true
 129         }
 130 }
 131
 132 // BufMapMouse maps a mouse event to an action
 133 func BufMapMouse(k MouseEvent, action string) {
 134         if f, ok := BufMouseActions[action]; ok {
 135                 BufMouseBindings[k] = f
 136         } else {
 137                 delete(BufMouseBindings, k)
 138                 BufMapKey(k, action)
 139         }
 140 }
 141
 142 // BufUnmap unmaps a key or mouse event from any action
 143 func BufUnmap(k Event) {
 144         delete(BufKeyBindings, k)
 145         delete(BufKeyStrings, k)
 146
 147         switch e := k.(type) {
 148         case MouseEvent:
 149                 delete(BufMouseBindings, e)
 150         }
 151 }
 152
 153 // The BufPane connects the buffer and the window
 154 // It provides a cursor (or multiple) and defines a set of actions
 155 // that can be taken on the buffer
 156 // The ActionHandler can access the window for necessary info about
 157 // visual positions for mouse clicks and scrolling
 158 type BufPane struct {
 159         display.BWindow
 160
 161         Buf *buffer.Buffer
 162
 163         Cursor *buffer.Cursor // the active cursor
 164
 165         // Since tcell doesn't differentiate between a mouse release event
 166         // and a mouse move event with no keys pressed, we need to keep
 167         // track of whether or not the mouse was pressed (or not released) last event to determine
 168         // mouse release events
 169         mouseReleased bool
 170
 171         // We need to keep track of insert key press toggle
 172         isOverwriteMode bool
 173         // This stores when the last click was
 174         // This is useful for detecting double and triple clicks
 175         lastClickTime time.Time
 176         lastLoc       buffer.Loc
 177
 178         // lastCutTime stores when the last ctrl+k was issued.
 179         // It is used for clearing the clipboard to replace it with fresh cut lines.
 180         lastCutTime time.Time
 181
 182         // freshClip returns true if the clipboard has never been pasted.
 183         freshClip bool
 184
 185         // Was the last mouse event actually a double click?
 186         // Useful for detecting triple clicks -- if a double click is detected
 187         // but the last mouse event was actually a double click, it's a triple click
 188         doubleClick bool
 189         // Same here, just to keep track for mouse move events
 190         tripleClick bool
 191
 192         // Last search stores the last successful search for FindNext and FindPrev
 193         lastSearch      string
 194         lastSearchRegex bool
 195         // Should the current multiple cursor selection search based on word or
 196         // based on selection (false for selection, true for word)
 197         multiWord bool
 198
 199         splitID uint64
 200         tab     *Tab
 201
 202         // remember original location of a search in case the search is canceled
 203         searchOrig buffer.Loc
 204 }
 205
 206 func NewBufPane(buf *buffer.Buffer, win display.BWindow, tab *Tab) *BufPane {
 207         h := new(BufPane)
 208         h.Buf = buf
 209         h.BWindow = win
 210         h.tab = tab
 211
 212         h.Cursor = h.Buf.GetActiveCursor()
 213         h.mouseReleased = true
 214
 215         config.RunPluginFn("onBufPaneOpen", luar.New(ulua.L, h))
 216
 217         return h
 218 }
 219
 220 func NewBufPaneFromBuf(buf *buffer.Buffer, tab *Tab) *BufPane {
 221         w := display.NewBufWindow(0, 0, 0, 0, buf)
 222         return NewBufPane(buf, w, tab)
 223 }
 224
 225 func (h *BufPane) SetTab(t *Tab) {
 226         h.tab = t
 227 }
 228
 229 func (h *BufPane) Tab() *Tab {
 230         return h.tab
 231 }
 232
 233 func (h *BufPane) ResizePane(size int) {
 234         n := h.tab.GetNode(h.splitID)
 235         n.ResizeSplit(size)
 236         h.tab.Resize()
 237 }
 238
 239 // PluginCB calls all plugin callbacks with a certain name and
 240 // displays an error if there is one and returns the aggregrate
 241 // boolean response
 242 func (h *BufPane) PluginCB(cb string) bool {
 243         b, err := config.RunPluginFnBool(cb, luar.New(ulua.L, h))
 244         if err != nil {
 245                 screen.TermMessage(err)
 246         }
 247         return b
 248 }
 249
 250 // PluginCBRune is the same as PluginCB but also passes a rune to
 251 // the plugins
 252 func (h *BufPane) PluginCBRune(cb string, r rune) bool {
 253         b, err := config.RunPluginFnBool(cb, luar.New(ulua.L, h), luar.New(ulua.L, string(r)))
 254         if err != nil {
 255                 screen.TermMessage(err)
 256         }
 257         return b
 258 }
 259
 260 func (h *BufPane) OpenBuffer(b *buffer.Buffer) {
 261         h.Buf.Close()
 262         h.Buf = b
 263         h.BWindow.SetBuffer(b)
 264         h.Cursor = b.GetActiveCursor()
 265         h.Resize(h.GetView().Width, h.GetView().Height)
 266         h.Relocate()
 267         // Set mouseReleased to true because we assume the mouse is not being pressed when
 268         // the editor is opened
 269         h.mouseReleased = true
 270         // Set isOverwriteMode to false, because we assume we are in the default mode when editor
 271         // is opened
 272         h.isOverwriteMode = false
 273         h.lastClickTime = time.Time{}
 274 }
 275
 276 func (h *BufPane) ID() uint64 {
 277         return h.splitID
 278 }
 279
 280 func (h *BufPane) SetID(i uint64) {
 281         h.splitID = i
 282 }
 283
 284 func (h *BufPane) Name() string {
 285         n := h.Buf.GetName()
 286         if h.Buf.Modified() {
 287                 n += " +"
 288         }
 289         return n
 290 }
 291
 292 // HandleEvent executes the tcell event properly
 293 func (h *BufPane) HandleEvent(event tcell.Event) {
 294         if h.Buf.ExternallyModified() && !h.Buf.ReloadDisabled {
 295                 InfoBar.YNPrompt("The file on disk has changed. Reload file? (y,n,esc)", func(yes, canceled bool) {
 296                         if canceled {
 297                                 h.Buf.DisableReload()
 298                         }
 299                         if !yes || canceled {
 300                                 h.Buf.UpdateModTime()
 301                         } else {
 302                                 h.Buf.ReOpen()
 303                         }
 304                 })
 305
 306         }
 307
 308         switch e := event.(type) {
 309         case *tcell.EventRaw:
 310                 re := RawEvent{
 311                         esc: e.EscSeq(),
 312                 }
 313                 h.DoKeyEvent(re)
 314         case *tcell.EventPaste:
 315                 h.paste(e.Text())
 316                 h.Relocate()
 317         case *tcell.EventKey:
 318                 ke := KeyEvent{
 319                         code: e.Key(),
 320                         mod:  e.Modifiers(),
 321                         r:    e.Rune(),
 322                 }
 323
 324                 done := h.DoKeyEvent(ke)
 325                 if !done && e.Key() == tcell.KeyRune {
 326                         h.DoRuneInsert(e.Rune())
 327                 }
 328         case *tcell.EventMouse:
 329                 cancel := false
 330                 switch e.Buttons() {
 331                 case tcell.Button1:
 332                         _, my := e.Position()
 333                         if h.Buf.Settings["statusline"].(bool) && my >= h.GetView().Y+h.GetView().Height-1 {
 334                                 cancel = true
 335                         }
 336                 case tcell.ButtonNone:
 337                         // Mouse event with no click
 338                         if !h.mouseReleased {
 339                                 // Mouse was just released
 340
 341                                 // mx, my := e.Position()
 342                                 // mouseLoc := h.LocFromVisual(buffer.Loc{X: mx, Y: my})
 343
 344                                 // we could finish the selection based on the release location as described
 345                                 // below but when the mouse click is within the scroll margin this will
 346                                 // cause a scroll and selection even for a simple mouse click which is
 347                                 // not good
 348                                 // for terminals that don't support mouse motion events, selection via
 349                                 // the mouse won't work but this is ok
 350
 351                                 // Relocating here isn't really necessary because the cursor will
 352                                 // be in the right place from the last mouse event
 353                                 // However, if we are running in a terminal that doesn't support mouse motion
 354                                 // events, this still allows the user to make selections, except only after they
 355                                 // release the mouse
 356
 357                                 // if !h.doubleClick && !h.tripleClick {
 358                                 //      h.Cursor.SetSelectionEnd(h.Cursor.Loc)
 359                                 // }
 360                                 if h.Cursor.HasSelection() {
 361                                         h.Cursor.CopySelection("primary")
 362                                 }
 363                                 h.mouseReleased = true
 364                         }
 365                 }
 366
 367                 if !cancel {
 368                         me := MouseEvent{
 369                                 btn: e.Buttons(),
 370                                 mod: e.Modifiers(),
 371                         }
 372                         h.DoMouseEvent(me, e)
 373                 }
 374         }
 375         h.Buf.MergeCursors()
 376
 377         if h.IsActive() {
 378                 // Display any gutter messages for this line
 379                 c := h.Buf.GetActiveCursor()
 380                 none := true
 381                 for _, m := range h.Buf.Messages {
 382                         if c.Y == m.Start.Y || c.Y == m.End.Y {
 383                                 InfoBar.GutterMessage(m.Msg)
 384                                 none = false
 385                                 break
 386                         }
 387                 }
 388                 if none && InfoBar.HasGutter {
 389                         InfoBar.ClearGutter()
 390                 }
 391         }
 392 }
 393
 394 // DoKeyEvent executes a key event by finding the action it is bound
 395 // to and executing it (possibly multiple times for multiple cursors)
 396 func (h *BufPane) DoKeyEvent(e Event) bool {
 397         if action, ok := BufKeyBindings[e]; ok {
 398                 return action(h)
 399         }
 400         return false
 401 }
 402
 403 func (h *BufPane) execAction(action func(*BufPane) bool, name string, cursor int) bool {
 404         if name != "Autocomplete" && name != "CycleAutocompleteBack" {
 405                 h.Buf.HasSuggestions = false
 406         }
 407
 408         _, isMulti := MultiActions[name]
 409         if (!isMulti && cursor == 0) || isMulti {
 410                 if h.PluginCB("pre" + name) {
 411                         success := action(h)
 412                         success = success && h.PluginCB("on"+name)
 413
 414                         if isMulti {
 415                                 if recording_macro {
 416                                         if name != "ToggleMacro" && name != "PlayMacro" {
 417                                                 curmacro = append(curmacro, action)
 418                                         }
 419                                 }
 420                         }
 421
 422                         return success
 423                 }
 424         }
 425
 426         return false
 427 }
 428
 429 func (h *BufPane) completeAction(action string) {
 430         h.PluginCB("on" + action)
 431 }
 432
 433 func (h *BufPane) HasKeyEvent(e Event) bool {
 434         _, ok := BufKeyBindings[e]
 435         return ok
 436 }
 437
 438 // DoMouseEvent executes a mouse event by finding the action it is bound
 439 // to and executing it
 440 func (h *BufPane) DoMouseEvent(e MouseEvent, te *tcell.EventMouse) bool {
 441         if action, ok := BufMouseBindings[e]; ok {
 442                 if action(h, te) {
 443                         h.Relocate()
 444                 }
 445                 return true
 446         } else if h.HasKeyEvent(e) {
 447                 return h.DoKeyEvent(e)
 448         }
 449         return false
 450 }
 451
 452 // DoRuneInsert inserts a given rune into the current buffer
 453 // (possibly multiple times for multiple cursors)
 454 func (h *BufPane) DoRuneInsert(r rune) {
 455         cursors := h.Buf.GetCursors()
 456         for _, c := range cursors {
 457                 // Insert a character
 458                 h.Buf.SetCurCursor(c.Num)
 459                 h.Cursor = c
 460                 if !h.PluginCBRune("preRune", r) {
 461                         continue
 462                 }
 463                 if c.HasSelection() {
 464                         c.DeleteSelection()
 465                         c.ResetSelection()
 466                 }
 467
 468                 if h.isOverwriteMode {
 469                         next := c.Loc
 470                         next.X++
 471                         h.Buf.Replace(c.Loc, next, string(r))
 472                 } else {
 473                         h.Buf.Insert(c.Loc, string(r))
 474                 }
 475                 if recording_macro {
 476                         curmacro = append(curmacro, r)
 477                 }
 478                 h.Relocate()
 479                 h.PluginCBRune("onRune", r)
 480         }
 481 }
 482
 483 func (h *BufPane) VSplitIndex(buf *buffer.Buffer, right bool) *BufPane {
 484         e := NewBufPaneFromBuf(buf, h.tab)
 485         e.splitID = MainTab().GetNode(h.splitID).VSplit(right)
 486         MainTab().Panes = append(MainTab().Panes, e)
 487         MainTab().Resize()
 488         MainTab().SetActive(len(MainTab().Panes) - 1)
 489         return e
 490 }
 491 func (h *BufPane) HSplitIndex(buf *buffer.Buffer, bottom bool) *BufPane {
 492         e := NewBufPaneFromBuf(buf, h.tab)
 493         e.splitID = MainTab().GetNode(h.splitID).HSplit(bottom)
 494         MainTab().Panes = append(MainTab().Panes, e)
 495         MainTab().Resize()
 496         MainTab().SetActive(len(MainTab().Panes) - 1)
 497         return e
 498 }
 499
 500 func (h *BufPane) VSplitBuf(buf *buffer.Buffer) *BufPane {
 501         return h.VSplitIndex(buf, h.Buf.Settings["splitright"].(bool))
 502 }
 503 func (h *BufPane) HSplitBuf(buf *buffer.Buffer) *BufPane {
 504         return h.HSplitIndex(buf, h.Buf.Settings["splitbottom"].(bool))
 505 }
 506 func (h *BufPane) Close() {
 507         h.Buf.Close()
 508 }
 509
 510 func (h *BufPane) SetActive(b bool) {
 511         h.BWindow.SetActive(b)
 512         if b {
 513                 // Display any gutter messages for this line
 514                 c := h.Buf.GetActiveCursor()
 515                 none := true
 516                 for _, m := range h.Buf.Messages {
 517                         if c.Y == m.Start.Y || c.Y == m.End.Y {
 518                                 InfoBar.GutterMessage(m.Msg)
 519                                 none = false
 520                                 break
 521                         }
 522                 }
 523                 if none && InfoBar.HasGutter {
 524                         InfoBar.ClearGutter()
 525                 }
 526         }
 527
 528 }
 529
 530 // BufKeyActions contains the list of all possible key actions the bufhandler could execute
 531 var BufKeyActions = map[string]BufKeyAction{
 532         "CursorUp":                  (*BufPane).CursorUp,
 533         "CursorDown":                (*BufPane).CursorDown,
 534         "CursorPageUp":              (*BufPane).CursorPageUp,
 535         "CursorPageDown":            (*BufPane).CursorPageDown,
 536         "CursorLeft":                (*BufPane).CursorLeft,
 537         "CursorRight":               (*BufPane).CursorRight,
 538         "CursorStart":               (*BufPane).CursorStart,
 539         "CursorEnd":                 (*BufPane).CursorEnd,
 540         "SelectToStart":             (*BufPane).SelectToStart,
 541         "SelectToEnd":               (*BufPane).SelectToEnd,
 542         "SelectUp":                  (*BufPane).SelectUp,
 543         "SelectDown":                (*BufPane).SelectDown,
 544         "SelectLeft":                (*BufPane).SelectLeft,
 545         "SelectRight":               (*BufPane).SelectRight,
 546         "WordRight":                 (*BufPane).WordRight,
 547         "WordLeft":                  (*BufPane).WordLeft,
 548         "SelectWordRight":           (*BufPane).SelectWordRight,
 549         "SelectWordLeft":            (*BufPane).SelectWordLeft,
 550         "DeleteWordRight":           (*BufPane).DeleteWordRight,
 551         "DeleteWordLeft":            (*BufPane).DeleteWordLeft,
 552         "SelectLine":                (*BufPane).SelectLine,
 553         "SelectToStartOfLine":       (*BufPane).SelectToStartOfLine,
 554         "SelectToStartOfText":       (*BufPane).SelectToStartOfText,
 555         "SelectToStartOfTextToggle": (*BufPane).SelectToStartOfTextToggle,
 556         "SelectToEndOfLine":         (*BufPane).SelectToEndOfLine,
 557         "ParagraphPrevious":         (*BufPane).ParagraphPrevious,
 558         "ParagraphNext":             (*BufPane).ParagraphNext,
 559         "InsertNewline":             (*BufPane).InsertNewline,
 560         "Backspace":                 (*BufPane).Backspace,
 561         "Delete":                    (*BufPane).Delete,
 562         "InsertTab":                 (*BufPane).InsertTab,
 563         "Save":                      (*BufPane).Save,
 564         "SaveAll":                   (*BufPane).SaveAll,
 565         "SaveAs":                    (*BufPane).SaveAs,
 566         "Find":                      (*BufPane).Find,
 567         "FindLiteral":               (*BufPane).FindLiteral,
 568         "FindNext":                  (*BufPane).FindNext,
 569         "FindPrevious":              (*BufPane).FindPrevious,
 570         "Center":                    (*BufPane).Center,
 571         "Undo":                      (*BufPane).Undo,
 572         "Redo":                      (*BufPane).Redo,
 573         "Copy":                      (*BufPane).Copy,
 574         "CopyLine":                  (*BufPane).CopyLine,
 575         "Cut":                       (*BufPane).Cut,
 576         "CutLine":                   (*BufPane).CutLine,
 577         "DuplicateLine":             (*BufPane).DuplicateLine,
 578         "DeleteLine":                (*BufPane).DeleteLine,
 579         "MoveLinesUp":               (*BufPane).MoveLinesUp,
 580         "MoveLinesDown":             (*BufPane).MoveLinesDown,
 581         "IndentSelection":           (*BufPane).IndentSelection,
 582         "OutdentSelection":          (*BufPane).OutdentSelection,
 583         "Autocomplete":              (*BufPane).Autocomplete,
 584         "CycleAutocompleteBack":     (*BufPane).CycleAutocompleteBack,
 585         "OutdentLine":               (*BufPane).OutdentLine,
 586         "IndentLine":                (*BufPane).IndentLine,
 587         "Paste":                     (*BufPane).Paste,
 588         "PastePrimary":              (*BufPane).PastePrimary,
 589         "SelectAll":                 (*BufPane).SelectAll,
 590         "OpenFile":                  (*BufPane).OpenFile,
 591         "Start":                     (*BufPane).Start,
 592         "End":                       (*BufPane).End,
 593         "PageUp":                    (*BufPane).PageUp,
 594         "PageDown":                  (*BufPane).PageDown,
 595         "SelectPageUp":              (*BufPane).SelectPageUp,
 596         "SelectPageDown":            (*BufPane).SelectPageDown,
 597         "HalfPageUp":                (*BufPane).HalfPageUp,
 598         "HalfPageDown":              (*BufPane).HalfPageDown,
 599         "StartOfText":               (*BufPane).StartOfText,
 600         "StartOfTextToggle":         (*BufPane).StartOfTextToggle,
 601         "StartOfLine":               (*BufPane).StartOfLine,
 602         "EndOfLine":                 (*BufPane).EndOfLine,
 603         "ToggleHelp":                (*BufPane).ToggleHelp,
 604         "ToggleKeyMenu":             (*BufPane).ToggleKeyMenu,
 605         "ToggleDiffGutter":          (*BufPane).ToggleDiffGutter,
 606         "ToggleRuler":               (*BufPane).ToggleRuler,
 607         "ClearStatus":               (*BufPane).ClearStatus,
 608         "ShellMode":                 (*BufPane).ShellMode,
 609         "CommandMode":               (*BufPane).CommandMode,
 610         "ToggleOverwriteMode":       (*BufPane).ToggleOverwriteMode,
 611         "Escape":                    (*BufPane).Escape,
 612         "Quit":                      (*BufPane).Quit,
 613         "QuitAll":                   (*BufPane).QuitAll,
 614         "AddTab":                    (*BufPane).AddTab,
 615         "PreviousTab":               (*BufPane).PreviousTab,
 616         "NextTab":                   (*BufPane).NextTab,
 617         "NextSplit":                 (*BufPane).NextSplit,
 618         "PreviousSplit":             (*BufPane).PreviousSplit,
 619         "Unsplit":                   (*BufPane).Unsplit,
 620         "VSplit":                    (*BufPane).VSplitAction,
 621         "HSplit":                    (*BufPane).HSplitAction,
 622         "ToggleMacro":               (*BufPane).ToggleMacro,
 623         "PlayMacro":                 (*BufPane).PlayMacro,
 624         "Suspend":                   (*BufPane).Suspend,
 625         "ScrollUp":                  (*BufPane).ScrollUpAction,
 626         "ScrollDown":                (*BufPane).ScrollDownAction,
 627         "SpawnMultiCursor":          (*BufPane).SpawnMultiCursor,
 628         "SpawnMultiCursorUp":        (*BufPane).SpawnMultiCursorUp,
 629         "SpawnMultiCursorDown":      (*BufPane).SpawnMultiCursorDown,
 630         "SpawnMultiCursorSelect":    (*BufPane).SpawnMultiCursorSelect,
 631         "RemoveMultiCursor":         (*BufPane).RemoveMultiCursor,
 632         "RemoveAllMultiCursors":     (*BufPane).RemoveAllMultiCursors,
 633         "SkipMultiCursor":           (*BufPane).SkipMultiCursor,
 634         "JumpToMatchingBrace":       (*BufPane).JumpToMatchingBrace,
 635         "JumpLine":                  (*BufPane).JumpLine,
 636         "None":                      (*BufPane).None,
 637
 638         // This was changed to InsertNewline but I don't want to break backwards compatibility
 639         "InsertEnter": (*BufPane).InsertNewline,
 640 }
 641
 642 // BufMouseActions contains the list of all possible mouse actions the bufhandler could execute
 643 var BufMouseActions = map[string]BufMouseAction{
 644         "MousePress":       (*BufPane).MousePress,
 645         "MouseMultiCursor": (*BufPane).MouseMultiCursor,
 646 }
 647
 648 // MultiActions is a list of actions that should be executed multiple
 649 // times if there are multiple cursors (one per cursor)
 650 // Generally actions that modify global editor state like quitting or
 651 // saving should not be included in this list
 652 var MultiActions = map[string]bool{
 653         "CursorUp":                  true,
 654         "CursorDown":                true,
 655         "CursorPageUp":              true,
 656         "CursorPageDown":            true,
 657         "CursorLeft":                true,
 658         "CursorRight":               true,
 659         "CursorStart":               true,
 660         "CursorEnd":                 true,
 661         "SelectToStart":             true,
 662         "SelectToEnd":               true,
 663         "SelectUp":                  true,
 664         "SelectDown":                true,
 665         "SelectLeft":                true,
 666         "SelectRight":               true,
 667         "WordRight":                 true,
 668         "WordLeft":                  true,
 669         "SelectWordRight":           true,
 670         "SelectWordLeft":            true,
 671         "DeleteWordRight":           true,
 672         "DeleteWordLeft":            true,
 673         "SelectLine":                true,
 674         "SelectToStartOfLine":       true,
 675         "SelectToStartOfText":       true,
 676         "SelectToStartOfTextToggle": true,
 677         "SelectToEndOfLine":         true,
 678         "ParagraphPrevious":         true,
 679         "ParagraphNext":             true,
 680         "InsertNewline":             true,
 681         "Backspace":                 true,
 682         "Delete":                    true,
 683         "InsertTab":                 true,
 684         "FindNext":                  true,
 685         "FindPrevious":              true,
 686         "CopyLine":                  true,
 687         "Cut":                       true,
 688         "CutLine":                   true,
 689         "DuplicateLine":             true,
 690         "DeleteLine":                true,
 691         "MoveLinesUp":               true,
 692         "MoveLinesDown":             true,
 693         "IndentSelection":           true,
 694         "OutdentSelection":          true,
 695         "OutdentLine":               true,
 696         "IndentLine":                true,
 697         "Paste":                     true,
 698         "PastePrimary":              true,
 699         "SelectPageUp":              true,
 700         "SelectPageDown":            true,
 701         "StartOfLine":               true,
 702         "StartOfText":               true,
 703         "StartOfTextToggle":         true,
 704         "EndOfLine":                 true,
 705         "JumpToMatchingBrace":       true,
 706 }