FM / input

/usr/share/nodejs/codemirror/src/input

Name	Size	Mode	Actions
ContentEditableInput.js	19337	0644	edit dl rm
indent.js	2757	0644	edit dl rm
input.js	5548	0644	edit dl rm
keymap.js	6512	0644	edit dl rm
keynames.js	1014	0644	edit dl rm
movement.js	5090	0644	edit dl rm
TextareaInput.js	13921	0644	edit dl rm

Edit: /usr/share/nodejs/codemirror/src/input/keymap.js (6512B)

import { flipCtrlCmd, mac, presto } from "../util/browser.js"
import { map } from "../util/misc.js"

import { keyNames } from "./keynames.js"

export let keyMap = {}

keyMap.basic = {
  "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
  "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
  "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
  "Tab": "defaultTab", "Shift-Tab": "indentAuto",
  "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
  "Esc": "singleSelection"
}
// Note that the save and find-related commands aren't defined by
// default. User code or addons can define them. Unknown commands
// are simply ignored.
keyMap.pcDefault = {
  "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
  "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
  "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
  "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
  "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
  "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
  "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
  "fallthrough": "basic"
}
// Very basic readline/emacs-style bindings, which are standard on Mac.
keyMap.emacsy = {
  "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
  "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp",
  "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine",
  "Ctrl-T": "transposeChars", "Ctrl-O": "openLine"
}
keyMap.macDefault = {
  "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
  "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
  "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
  "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
  "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
  "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
  "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
  "fallthrough": ["basic", "emacsy"]
}
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault

// KEYMAP DISPATCH

function normalizeKeyName(name) {
  let parts = name.split(/-(?!$)/)
  name = parts[parts.length - 1]
  let alt, ctrl, shift, cmd
  for (let i = 0; i < parts.length - 1; i++) {
    let mod = parts[i]
    if (/^(cmd|meta|m)$/i.test(mod)) cmd = true
    else if (/^a(lt)?$/i.test(mod)) alt = true
    else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true
    else if (/^s(hift)?$/i.test(mod)) shift = true
    else throw new Error("Unrecognized modifier name: " + mod)
  }
  if (alt) name = "Alt-" + name
  if (ctrl) name = "Ctrl-" + name
  if (cmd) name = "Cmd-" + name
  if (shift) name = "Shift-" + name
  return name
}

// This is a kludge to keep keymaps mostly working as raw objects
// (backwards compatibility) while at the same time support features
// like normalization and multi-stroke key bindings. It compiles a
// new normalized keymap, and then updates the old object to reflect
// this.
export function normalizeKeyMap(keymap) {
  let copy = {}
  for (let keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
    let value = keymap[keyname]
    if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue
    if (value == "...") { delete keymap[keyname]; continue }

let keys = map(keyname.split(" "), normalizeKeyName)
    for (let i = 0; i < keys.length; i++) {
      let val, name
      if (i == keys.length - 1) {
        name = keys.join(" ")
        val = value
      } else {
        name = keys.slice(0, i + 1).join(" ")
        val = "..."
      }
      let prev = copy[name]
      if (!prev) copy[name] = val
      else if (prev != val) throw new Error("Inconsistent bindings for " + name)
    }
    delete keymap[keyname]
  }
  for (let prop in copy) keymap[prop] = copy[prop]
  return keymap
}

export function lookupKey(key, map, handle, context) {
  map = getKeyMap(map)
  let found = map.call ? map.call(key, context) : map[key]
  if (found === false) return "nothing"
  if (found === "...") return "multi"
  if (found != null && handle(found)) return "handled"

if (map.fallthrough) {
    if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
      return lookupKey(key, map.fallthrough, handle, context)
    for (let i = 0; i < map.fallthrough.length; i++) {
      let result = lookupKey(key, map.fallthrough[i], handle, context)
      if (result) return result
    }
  }
}

// Modifier key presses don't count as 'real' key presses for the
// purpose of keymap fallthrough.
export function isModifierKey(value) {
  let name = typeof value == "string" ? value : keyNames[value.keyCode]
  return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
}

export function addModifierNames(name, event, noShift) {
  let base = name
  if (event.altKey && base != "Alt") name = "Alt-" + name
  if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name
  if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") name = "Cmd-" + name
  if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name
  return name
}

// Look up the name of a key as indicated by an event object.
export function keyName(event, noShift) {
  if (presto && event.keyCode == 34 && event["char"]) return false
  let name = keyNames[event.keyCode]
  if (name == null || event.altGraphKey) return false
  // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
  // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
  if (event.keyCode == 3 && event.code) name = event.code
  return addModifierNames(name, event, noShift)
}

export function getKeyMap(val) {
  return typeof val == "string" ? keyMap[val] : val
}

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