cmd/micro/bindings.go

   1 package main
   2
   3 import (
   4         "fmt"
   5         "io/ioutil"
   6         "os"
   7         "strings"
   8         "unicode"
   9
  10         "github.com/flynn/json5"
  11         "github.com/zyedidia/tcell"
  12 )
  13
  14 var bindingsStr map[string]string
  15 var bindings map[Key][]func(*View, bool) bool
  16 var mouseBindings map[Key][]func(*View, bool, *tcell.EventMouse) bool
  17 var helpBinding string
  18 var kmenuBinding string
  19
  20 var mouseBindingActions = map[string]func(*View, bool, *tcell.EventMouse) bool{
  21         "MousePress":       (*View).MousePress,
  22         "MouseMultiCursor": (*View).MouseMultiCursor,
  23 }
  24
  25 var bindingActions = map[string]func(*View, bool) bool{
  26         "CursorUp":              (*View).CursorUp,
  27         "CursorDown":            (*View).CursorDown,
  28         "CursorPageUp":          (*View).CursorPageUp,
  29         "CursorPageDown":        (*View).CursorPageDown,
  30         "CursorLeft":            (*View).CursorLeft,
  31         "CursorRight":           (*View).CursorRight,
  32         "CursorStart":           (*View).CursorStart,
  33         "CursorEnd":             (*View).CursorEnd,
  34         "SelectToStart":         (*View).SelectToStart,
  35         "SelectToEnd":           (*View).SelectToEnd,
  36         "SelectUp":              (*View).SelectUp,
  37         "SelectDown":            (*View).SelectDown,
  38         "SelectLeft":            (*View).SelectLeft,
  39         "SelectRight":           (*View).SelectRight,
  40         "WordRight":             (*View).WordRight,
  41         "WordLeft":              (*View).WordLeft,
  42         "SelectWordRight":       (*View).SelectWordRight,
  43         "SelectWordLeft":        (*View).SelectWordLeft,
  44         "DeleteWordRight":       (*View).DeleteWordRight,
  45         "DeleteWordLeft":        (*View).DeleteWordLeft,
  46         "SelectToStartOfLine":   (*View).SelectToStartOfLine,
  47         "SelectToEndOfLine":     (*View).SelectToEndOfLine,
  48         "ParagraphPrevious":     (*View).ParagraphPrevious,
  49         "ParagraphNext":         (*View).ParagraphNext,
  50         "InsertNewline":         (*View).InsertNewline,
  51         "InsertSpace":           (*View).InsertSpace,
  52         "Backspace":             (*View).Backspace,
  53         "Delete":                (*View).Delete,
  54         "InsertTab":             (*View).InsertTab,
  55         "Save":                  (*View).Save,
  56         "SaveAll":               (*View).SaveAll,
  57         "SaveAs":                (*View).SaveAs,
  58         "Find":                  (*View).Find,
  59         "FindNext":              (*View).FindNext,
  60         "FindPrevious":          (*View).FindPrevious,
  61         "Center":                (*View).Center,
  62         "Undo":                  (*View).Undo,
  63         "Redo":                  (*View).Redo,
  64         "Copy":                  (*View).Copy,
  65         "Cut":                   (*View).Cut,
  66         "CutLine":               (*View).CutLine,
  67         "DuplicateLine":         (*View).DuplicateLine,
  68         "DeleteLine":            (*View).DeleteLine,
  69         "MoveLinesUp":           (*View).MoveLinesUp,
  70         "MoveLinesDown":         (*View).MoveLinesDown,
  71         "IndentSelection":       (*View).IndentSelection,
  72         "OutdentSelection":      (*View).OutdentSelection,
  73         "OutdentLine":           (*View).OutdentLine,
  74         "Paste":                 (*View).Paste,
  75         "PastePrimary":          (*View).PastePrimary,
  76         "SelectAll":             (*View).SelectAll,
  77         "OpenFile":              (*View).OpenFile,
  78         "Start":                 (*View).Start,
  79         "End":                   (*View).End,
  80         "PageUp":                (*View).PageUp,
  81         "PageDown":              (*View).PageDown,
  82         "HalfPageUp":            (*View).HalfPageUp,
  83         "HalfPageDown":          (*View).HalfPageDown,
  84         "StartOfLine":           (*View).StartOfLine,
  85         "EndOfLine":             (*View).EndOfLine,
  86         "ToggleHelp":            (*View).ToggleHelp,
  87         "ToggleKeyMenu":         (*View).ToggleKeyMenu,
  88         "ToggleRuler":           (*View).ToggleRuler,
  89         "JumpLine":              (*View).JumpLine,
  90         "ClearStatus":           (*View).ClearStatus,
  91         "ShellMode":             (*View).ShellMode,
  92         "CommandMode":           (*View).CommandMode,
  93         "ToggleOverwriteMode":   (*View).ToggleOverwriteMode,
  94         "Escape":                (*View).Escape,
  95         "Quit":                  (*View).Quit,
  96         "QuitAll":               (*View).QuitAll,
  97         "AddTab":                (*View).AddTab,
  98         "PreviousTab":           (*View).PreviousTab,
  99         "NextTab":               (*View).NextTab,
 100         "NextSplit":             (*View).NextSplit,
 101         "PreviousSplit":         (*View).PreviousSplit,
 102         "Unsplit":               (*View).Unsplit,
 103         "VSplit":                (*View).VSplitBinding,
 104         "HSplit":                (*View).HSplitBinding,
 105         "ToggleMacro":           (*View).ToggleMacro,
 106         "PlayMacro":             (*View).PlayMacro,
 107         "Suspend":               (*View).Suspend,
 108         "ScrollUp":              (*View).ScrollUpAction,
 109         "ScrollDown":            (*View).ScrollDownAction,
 110         "SpawnMultiCursor":      (*View).SpawnMultiCursor,
 111         "RemoveMultiCursor":     (*View).RemoveMultiCursor,
 112         "RemoveAllMultiCursors": (*View).RemoveAllMultiCursors,
 113         "SkipMultiCursor":       (*View).SkipMultiCursor,
 114         "JumpToMatchingBrace":   (*View).JumpToMatchingBrace,
 115
 116         // This was changed to InsertNewline but I don't want to break backwards compatibility
 117         "InsertEnter": (*View).InsertNewline,
 118 }
 119
 120 var bindingMouse = map[string]tcell.ButtonMask{
 121         "MouseLeft":       tcell.Button1,
 122         "MouseMiddle":     tcell.Button2,
 123         "MouseRight":      tcell.Button3,
 124         "MouseWheelUp":    tcell.WheelUp,
 125         "MouseWheelDown":  tcell.WheelDown,
 126         "MouseWheelLeft":  tcell.WheelLeft,
 127         "MouseWheelRight": tcell.WheelRight,
 128 }
 129
 130 var bindingKeys = map[string]tcell.Key{
 131         "Up":             tcell.KeyUp,
 132         "Down":           tcell.KeyDown,
 133         "Right":          tcell.KeyRight,
 134         "Left":           tcell.KeyLeft,
 135         "UpLeft":         tcell.KeyUpLeft,
 136         "UpRight":        tcell.KeyUpRight,
 137         "DownLeft":       tcell.KeyDownLeft,
 138         "DownRight":      tcell.KeyDownRight,
 139         "Center":         tcell.KeyCenter,
 140         "PageUp":         tcell.KeyPgUp,
 141         "PageDown":       tcell.KeyPgDn,
 142         "Home":           tcell.KeyHome,
 143         "End":            tcell.KeyEnd,
 144         "Insert":         tcell.KeyInsert,
 145         "Delete":         tcell.KeyDelete,
 146         "Help":           tcell.KeyHelp,
 147         "Exit":           tcell.KeyExit,
 148         "Clear":          tcell.KeyClear,
 149         "Cancel":         tcell.KeyCancel,
 150         "Print":          tcell.KeyPrint,
 151         "Pause":          tcell.KeyPause,
 152         "Backtab":        tcell.KeyBacktab,
 153         "F1":             tcell.KeyF1,
 154         "F2":             tcell.KeyF2,
 155         "F3":             tcell.KeyF3,
 156         "F4":             tcell.KeyF4,
 157         "F5":             tcell.KeyF5,
 158         "F6":             tcell.KeyF6,
 159         "F7":             tcell.KeyF7,
 160         "F8":             tcell.KeyF8,
 161         "F9":             tcell.KeyF9,
 162         "F10":            tcell.KeyF10,
 163         "F11":            tcell.KeyF11,
 164         "F12":            tcell.KeyF12,
 165         "F13":            tcell.KeyF13,
 166         "F14":            tcell.KeyF14,
 167         "F15":            tcell.KeyF15,
 168         "F16":            tcell.KeyF16,
 169         "F17":            tcell.KeyF17,
 170         "F18":            tcell.KeyF18,
 171         "F19":            tcell.KeyF19,
 172         "F20":            tcell.KeyF20,
 173         "F21":            tcell.KeyF21,
 174         "F22":            tcell.KeyF22,
 175         "F23":            tcell.KeyF23,
 176         "F24":            tcell.KeyF24,
 177         "F25":            tcell.KeyF25,
 178         "F26":            tcell.KeyF26,
 179         "F27":            tcell.KeyF27,
 180         "F28":            tcell.KeyF28,
 181         "F29":            tcell.KeyF29,
 182         "F30":            tcell.KeyF30,
 183         "F31":            tcell.KeyF31,
 184         "F32":            tcell.KeyF32,
 185         "F33":            tcell.KeyF33,
 186         "F34":            tcell.KeyF34,
 187         "F35":            tcell.KeyF35,
 188         "F36":            tcell.KeyF36,
 189         "F37":            tcell.KeyF37,
 190         "F38":            tcell.KeyF38,
 191         "F39":            tcell.KeyF39,
 192         "F40":            tcell.KeyF40,
 193         "F41":            tcell.KeyF41,
 194         "F42":            tcell.KeyF42,
 195         "F43":            tcell.KeyF43,
 196         "F44":            tcell.KeyF44,
 197         "F45":            tcell.KeyF45,
 198         "F46":            tcell.KeyF46,
 199         "F47":            tcell.KeyF47,
 200         "F48":            tcell.KeyF48,
 201         "F49":            tcell.KeyF49,
 202         "F50":            tcell.KeyF50,
 203         "F51":            tcell.KeyF51,
 204         "F52":            tcell.KeyF52,
 205         "F53":            tcell.KeyF53,
 206         "F54":            tcell.KeyF54,
 207         "F55":            tcell.KeyF55,
 208         "F56":            tcell.KeyF56,
 209         "F57":            tcell.KeyF57,
 210         "F58":            tcell.KeyF58,
 211         "F59":            tcell.KeyF59,
 212         "F60":            tcell.KeyF60,
 213         "F61":            tcell.KeyF61,
 214         "F62":            tcell.KeyF62,
 215         "F63":            tcell.KeyF63,
 216         "F64":            tcell.KeyF64,
 217         "CtrlSpace":      tcell.KeyCtrlSpace,
 218         "CtrlA":          tcell.KeyCtrlA,
 219         "CtrlB":          tcell.KeyCtrlB,
 220         "CtrlC":          tcell.KeyCtrlC,
 221         "CtrlD":          tcell.KeyCtrlD,
 222         "CtrlE":          tcell.KeyCtrlE,
 223         "CtrlF":          tcell.KeyCtrlF,
 224         "CtrlG":          tcell.KeyCtrlG,
 225         "CtrlH":          tcell.KeyCtrlH,
 226         "CtrlI":          tcell.KeyCtrlI,
 227         "CtrlJ":          tcell.KeyCtrlJ,
 228         "CtrlK":          tcell.KeyCtrlK,
 229         "CtrlL":          tcell.KeyCtrlL,
 230         "CtrlM":          tcell.KeyCtrlM,
 231         "CtrlN":          tcell.KeyCtrlN,
 232         "CtrlO":          tcell.KeyCtrlO,
 233         "CtrlP":          tcell.KeyCtrlP,
 234         "CtrlQ":          tcell.KeyCtrlQ,
 235         "CtrlR":          tcell.KeyCtrlR,
 236         "CtrlS":          tcell.KeyCtrlS,
 237         "CtrlT":          tcell.KeyCtrlT,
 238         "CtrlU":          tcell.KeyCtrlU,
 239         "CtrlV":          tcell.KeyCtrlV,
 240         "CtrlW":          tcell.KeyCtrlW,
 241         "CtrlX":          tcell.KeyCtrlX,
 242         "CtrlY":          tcell.KeyCtrlY,
 243         "CtrlZ":          tcell.KeyCtrlZ,
 244         "CtrlLeftSq":     tcell.KeyCtrlLeftSq,
 245         "CtrlBackslash":  tcell.KeyCtrlBackslash,
 246         "CtrlRightSq":    tcell.KeyCtrlRightSq,
 247         "CtrlCarat":      tcell.KeyCtrlCarat,
 248         "CtrlUnderscore": tcell.KeyCtrlUnderscore,
 249         "CtrlPageUp":     tcell.KeyCtrlPgUp,
 250         "CtrlPageDown":   tcell.KeyCtrlPgDn,
 251         "Tab":            tcell.KeyTab,
 252         "Esc":            tcell.KeyEsc,
 253         "Escape":         tcell.KeyEscape,
 254         "Enter":          tcell.KeyEnter,
 255         "Backspace":      tcell.KeyBackspace2,
 256
 257         // I renamed these keys to PageUp and PageDown but I don't want to break someone's keybindings
 258         "PgUp":   tcell.KeyPgUp,
 259         "PgDown": tcell.KeyPgDn,
 260 }
 261
 262 // The Key struct holds the data for a keypress (keycode + modifiers)
 263 type Key struct {
 264         keyCode   tcell.Key
 265         modifiers tcell.ModMask
 266         buttons   tcell.ButtonMask
 267         r         rune
 268         escape    string
 269 }
 270
 271 // InitBindings initializes the keybindings for micro
 272 func InitBindings() {
 273         bindings = make(map[Key][]func(*View, bool) bool)
 274         bindingsStr = make(map[string]string)
 275         mouseBindings = make(map[Key][]func(*View, bool, *tcell.EventMouse) bool)
 276
 277         var parsed map[string]string
 278         defaults := DefaultBindings()
 279
 280         filename := configDir + "/bindings.json"
 281         if _, e := os.Stat(filename); e == nil {
 282                 input, err := ioutil.ReadFile(filename)
 283                 if err != nil {
 284                         TermMessage("Error reading bindings.json file: " + err.Error())
 285                         return
 286                 }
 287
 288                 err = json5.Unmarshal(input, &parsed)
 289                 if err != nil {
 290                         TermMessage("Error reading bindings.json:", err.Error())
 291                 }
 292         }
 293
 294         parseBindings(defaults)
 295         parseBindings(parsed)
 296 }
 297
 298 func parseBindings(userBindings map[string]string) {
 299         for k, v := range userBindings {
 300                 BindKey(k, v)
 301         }
 302 }
 303
 304 // findKey will find binding Key 'b' using string 'k'
 305 func findKey(k string) (b Key, ok bool) {
 306         modifiers := tcell.ModNone
 307
 308         // First, we'll strip off all the modifiers in the name and add them to the
 309         // ModMask
 310 modSearch:
 311         for {
 312                 switch {
 313                 case strings.HasPrefix(k, "-"):
 314                         // We optionally support dashes between modifiers
 315                         k = k[1:]
 316                 case strings.HasPrefix(k, "Ctrl") && k != "CtrlH":
 317                         // CtrlH technically does not have a 'Ctrl' modifier because it is really backspace
 318                         k = k[4:]
 319                         modifiers |= tcell.ModCtrl
 320                 case strings.HasPrefix(k, "Alt"):
 321                         k = k[3:]
 322                         modifiers |= tcell.ModAlt
 323                 case strings.HasPrefix(k, "Shift"):
 324                         k = k[5:]
 325                         modifiers |= tcell.ModShift
 326                 case strings.HasPrefix(k, "\x1b"):
 327                         return Key{
 328                                 keyCode:   -1,
 329                                 modifiers: modifiers,
 330                                 buttons:   -1,
 331                                 r:         0,
 332                                 escape:    k,
 333                         }, true
 334                 default:
 335                         break modSearch
 336                 }
 337         }
 338
 339         // Control is handled specially, since some character codes in bindingKeys
 340         // are different when Control is depressed. We should check for Control keys
 341         // first.
 342         if modifiers&tcell.ModCtrl != 0 {
 343                 // see if the key is in bindingKeys with the Ctrl prefix.
 344                 k = string(unicode.ToUpper(rune(k[0]))) + k[1:]
 345                 if code, ok := bindingKeys["Ctrl"+k]; ok {
 346                         // It is, we're done.
 347                         return Key{
 348                                 keyCode:   code,
 349                                 modifiers: modifiers,
 350                                 buttons:   -1,
 351                                 r:         0,
 352                         }, true
 353                 }
 354         }
 355
 356         // See if we can find the key in bindingKeys
 357         if code, ok := bindingKeys[k]; ok {
 358                 return Key{
 359                         keyCode:   code,
 360                         modifiers: modifiers,
 361                         buttons:   -1,
 362                         r:         0,
 363                 }, true
 364         }
 365
 366         // See if we can find the key in bindingMouse
 367         if code, ok := bindingMouse[k]; ok {
 368                 return Key{
 369                         modifiers: modifiers,
 370                         buttons:   code,
 371                         r:         0,
 372                 }, true
 373         }
 374
 375         // If we were given one character, then we've got a rune.
 376         if len(k) == 1 {
 377                 return Key{
 378                         keyCode:   tcell.KeyRune,
 379                         modifiers: modifiers,
 380                         buttons:   -1,
 381                         r:         rune(k[0]),
 382                 }, true
 383         }
 384
 385         // We don't know what happened.
 386         return Key{buttons: -1}, false
 387 }
 388
 389 // findAction will find 'action' using string 'v'
 390 func findAction(v string) (action func(*View, bool) bool) {
 391         action, ok := bindingActions[v]
 392         if !ok {
 393                 // If the user seems to be binding a function that doesn't exist
 394                 // We hope that it's a lua function that exists and bind it to that
 395                 action = LuaFunctionBinding(v)
 396         }
 397         return action
 398 }
 399
 400 func findMouseAction(v string) func(*View, bool, *tcell.EventMouse) bool {
 401         action, ok := mouseBindingActions[v]
 402         if !ok {
 403                 // If the user seems to be binding a function that doesn't exist
 404                 // We hope that it's a lua function that exists and bind it to that
 405                 action = LuaFunctionMouseBinding(v)
 406         }
 407         return action
 408 }
 409
 410 // TryBindKey tries to bind a key by writing to configDir/bindings.json
 411 // This function is unused for now
 412 func TryBindKey(k, v string) {
 413         filename := configDir + "/bindings.json"
 414         if _, e := os.Stat(filename); e == nil {
 415                 input, err := ioutil.ReadFile(filename)
 416                 if err != nil {
 417                         TermMessage("Error reading bindings.json file: " + err.Error())
 418                         return
 419                 }
 420
 421                 conflict := -1
 422                 lines := strings.Split(string(input), "\n")
 423                 for i, l := range lines {
 424                         parts := strings.Split(l, ":")
 425                         if len(parts) >= 2 {
 426                                 if strings.Contains(parts[0], k) {
 427                                         conflict = i
 428                                         TermMessage("Warning: Keybinding conflict:", k, " has been overwritten")
 429                                 }
 430                         }
 431                 }
 432
 433                 binding := fmt.Sprintf("    \"%s\": \"%s\",", k, v)
 434                 if conflict == -1 {
 435                         lines = append([]string{lines[0], binding}, lines[conflict:]...)
 436                 } else {
 437                         lines = append(append(lines[:conflict], binding), lines[conflict+1:]...)
 438                 }
 439                 txt := strings.Join(lines, "\n")
 440                 err = ioutil.WriteFile(filename, []byte(txt), 0644)
 441                 if err != nil {
 442                         TermMessage("Error")
 443                 }
 444         }
 445 }
 446
 447 // BindKey takes a key and an action and binds the two together
 448 func BindKey(k, v string) {
 449         key, ok := findKey(k)
 450         if !ok {
 451                 TermMessage("Unknown keybinding: " + k)
 452                 return
 453         }
 454         if v == "ToggleHelp" {
 455                 helpBinding = k
 456         }
 457         if v == "ToggleKeyMenu" {
 458                 kmenuBinding = k
 459         }
 460         if helpBinding == k && v != "ToggleHelp" {
 461                 helpBinding = ""
 462         }
 463         if kmenuBinding == k && v != "ToggleKeyMenu" {
 464                 kmenuBinding = ""
 465         }
 466
 467         actionNames := strings.Split(v, ",")
 468         if actionNames[0] == "UnbindKey" {
 469                 delete(bindings, key)
 470                 delete(mouseBindings, key)
 471                 delete(bindingsStr, k)
 472                 if len(actionNames) == 1 {
 473                         return
 474                 }
 475                 actionNames = append(actionNames[:0], actionNames[1:]...)
 476         }
 477         actions := make([]func(*View, bool) bool, 0, len(actionNames))
 478         mouseActions := make([]func(*View, bool, *tcell.EventMouse) bool, 0, len(actionNames))
 479         for _, actionName := range actionNames {
 480                 if strings.HasPrefix(actionName, "Mouse") {
 481                         mouseActions = append(mouseActions, findMouseAction(actionName))
 482                 } else if strings.HasPrefix(actionName, "command:") {
 483                         cmd := strings.SplitN(actionName, ":", 2)[1]
 484                         actions = append(actions, CommandAction(cmd))
 485                 } else if strings.HasPrefix(actionName, "command-edit:") {
 486                         cmd := strings.SplitN(actionName, ":", 2)[1]
 487                         actions = append(actions, CommandEditAction(cmd))
 488                 } else {
 489                         actions = append(actions, findAction(actionName))
 490                 }
 491         }
 492
 493         if len(actions) > 0 {
 494                 // Can't have a binding be both mouse and normal
 495                 delete(mouseBindings, key)
 496                 bindings[key] = actions
 497                 bindingsStr[k] = v
 498         } else if len(mouseActions) > 0 {
 499                 // Can't have a binding be both mouse and normal
 500                 delete(bindings, key)
 501                 mouseBindings[key] = mouseActions
 502         }
 503 }
 504
 505 // DefaultBindings returns a map containing micro's default keybindings
 506 func DefaultBindings() map[string]string {
 507         return map[string]string{
 508                 "Up":             "CursorUp",
 509                 "Down":           "CursorDown",
 510                 "Right":          "CursorRight",
 511                 "Left":           "CursorLeft",
 512                 "ShiftUp":        "SelectUp",
 513                 "ShiftDown":      "SelectDown",
 514                 "ShiftLeft":      "SelectLeft",
 515                 "ShiftRight":     "SelectRight",
 516                 "AltLeft":        "WordLeft",
 517                 "AltRight":       "WordRight",
 518                 "AltUp":          "MoveLinesUp",
 519                 "AltDown":        "MoveLinesDown",
 520                 "AltShiftRight":  "SelectWordRight",
 521                 "AltShiftLeft":   "SelectWordLeft",
 522                 "CtrlLeft":       "StartOfLine",
 523                 "CtrlRight":      "EndOfLine",
 524                 "CtrlShiftLeft":  "SelectToStartOfLine",
 525                 "ShiftHome":      "SelectToStartOfLine",
 526                 "CtrlShiftRight": "SelectToEndOfLine",
 527                 "ShiftEnd":       "SelectToEndOfLine",
 528                 "CtrlUp":         "CursorStart",
 529                 "CtrlDown":       "CursorEnd",
 530                 "CtrlShiftUp":    "SelectToStart",
 531                 "CtrlShiftDown":  "SelectToEnd",
 532                 "Alt-{":          "ParagraphPrevious",
 533                 "Alt-}":          "ParagraphNext",
 534                 "Enter":          "InsertNewline",
 535                 "CtrlH":          "Backspace",
 536                 "Backspace":      "Backspace",
 537                 "Alt-CtrlH":      "DeleteWordLeft",
 538                 "Alt-Backspace":  "DeleteWordLeft",
 539                 "Tab":            "IndentSelection,InsertTab",
 540                 "Backtab":        "OutdentSelection,OutdentLine",
 541                 "CtrlO":          "OpenFile",
 542                 "CtrlS":          "Save",
 543                 "CtrlF":          "Find",
 544                 "CtrlN":          "FindNext",
 545                 "CtrlP":          "FindPrevious",
 546                 "CtrlZ":          "Undo",
 547                 "CtrlY":          "Redo",
 548                 "CtrlC":          "Copy",
 549                 "CtrlX":          "Cut",
 550                 "CtrlK":          "CutLine",
 551                 "CtrlD":          "DuplicateLine",
 552                 "CtrlV":          "Paste",
 553                 "CtrlA":          "SelectAll",
 554                 "CtrlT":          "AddTab",
 555                 "Alt,":           "PreviousTab",
 556                 "Alt.":           "NextTab",
 557                 "Home":           "StartOfLine",
 558                 "End":            "EndOfLine",
 559                 "CtrlHome":       "CursorStart",
 560                 "CtrlEnd":        "CursorEnd",
 561                 "PageUp":         "CursorPageUp",
 562                 "PageDown":       "CursorPageDown",
 563                 "CtrlPageUp":     "PreviousTab",
 564                 "CtrlPageDown":   "NextTab",
 565                 "CtrlG":          "ToggleHelp",
 566                 "Alt-g":          "ToggleKeyMenu",
 567                 "CtrlR":          "ToggleRuler",
 568                 "CtrlL":          "JumpLine",
 569                 "Delete":         "Delete",
 570                 "CtrlB":          "ShellMode",
 571                 "CtrlQ":          "Quit",
 572                 "CtrlE":          "CommandMode",
 573                 "CtrlW":          "NextSplit",
 574                 "CtrlU":          "ToggleMacro",
 575                 "CtrlJ":          "PlayMacro",
 576                 "Insert":         "ToggleOverwriteMode",
 577
 578                 // Emacs-style keybindings
 579                 "Alt-f": "WordRight",
 580                 "Alt-b": "WordLeft",
 581                 "Alt-a": "StartOfLine",
 582                 "Alt-e": "EndOfLine",
 583                 // "Alt-p": "CursorUp",
 584                 // "Alt-n": "CursorDown",
 585
 586                 // Integration with file managers
 587                 "F2":  "Save",
 588                 "F3":  "Find",
 589                 "F4":  "Quit",
 590                 "F7":  "Find",
 591                 "F10": "Quit",
 592                 "Esc": "Escape",
 593
 594                 // Mouse bindings
 595                 "MouseWheelUp":   "ScrollUp",
 596                 "MouseWheelDown": "ScrollDown",
 597                 "MouseLeft":      "MousePress",
 598                 "MouseMiddle":    "PastePrimary",
 599                 "Ctrl-MouseLeft": "MouseMultiCursor",
 600
 601                 "Alt-n": "SpawnMultiCursor",
 602                 "Alt-p": "RemoveMultiCursor",
 603                 "Alt-c": "RemoveAllMultiCursors",
 604                 "Alt-x": "SkipMultiCursor",
 605         }
 606 }