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/input.js (5548B)

import { runInOp } from "../display/operations.js"
import { ensureCursorVisible } from "../display/scrolling.js"
import { Pos } from "../line/pos.js"
import { getLine } from "../line/utils_line.js"
import { makeChange } from "../model/changes.js"
import { ios, webkit } from "../util/browser.js"
import { elt } from "../util/dom.js"
import { lst, map } from "../util/misc.js"
import { signalLater } from "../util/operation_group.js"
import { splitLinesAuto } from "../util/feature_detection.js"

import { indentLine } from "./indent.js"

// This will be set to a {lineWise: bool, text: [string]} object, so
// that, when pasting, we know what kind of selections the copied
// text was made out of.
export let lastCopied = null

export function setLastCopied(newLastCopied) {
  lastCopied = newLastCopied
}

export function applyTextInput(cm, inserted, deleted, sel, origin) {
  let doc = cm.doc
  cm.display.shift = false
  if (!sel) sel = doc.sel

let recent = +new Date - 200
  let paste = origin == "paste" || cm.state.pasteIncoming > recent
  let textLines = splitLinesAuto(inserted), multiPaste = null
  // When pasting N lines into N selections, insert one line per selection
  if (paste && sel.ranges.length > 1) {
    if (lastCopied && lastCopied.text.join("\n") == inserted) {
      if (sel.ranges.length % lastCopied.text.length == 0) {
        multiPaste = []
        for (let i = 0; i < lastCopied.text.length; i++)
          multiPaste.push(doc.splitLines(lastCopied.text[i]))
      }
    } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
      multiPaste = map(textLines, l => [l])
    }
  }

let updateInput = cm.curOp.updateInput
  // Normal behavior is to insert the new text into every selection
  for (let i = sel.ranges.length - 1; i >= 0; i--) {
    let range = sel.ranges[i]
    let from = range.from(), to = range.to()
    if (range.empty()) {
      if (deleted && deleted > 0) // Handle deletion
        from = Pos(from.line, from.ch - deleted)
      else if (cm.state.overwrite && !paste) // Handle overwrite
        to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length))
      else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
        from = to = Pos(from.line, 0)
    }
    let changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
                       origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}
    makeChange(cm.doc, changeEvent)
    signalLater(cm, "inputRead", cm, changeEvent)
  }
  if (inserted && !paste)
    triggerElectric(cm, inserted)

ensureCursorVisible(cm)
  if (cm.curOp.updateInput < 2) cm.curOp.updateInput = updateInput
  cm.curOp.typing = true
  cm.state.pasteIncoming = cm.state.cutIncoming = -1
}

export function handlePaste(e, cm) {
  let pasted = e.clipboardData && e.clipboardData.getData("Text")
  if (pasted) {
    e.preventDefault()
    if (!cm.isReadOnly() && !cm.options.disableInput)
      runInOp(cm, () => applyTextInput(cm, pasted, 0, null, "paste"))
    return true
  }
}

export function triggerElectric(cm, inserted) {
  // When an 'electric' character is inserted, immediately trigger a reindent
  if (!cm.options.electricChars || !cm.options.smartIndent) return
  let sel = cm.doc.sel

for (let i = sel.ranges.length - 1; i >= 0; i--) {
    let range = sel.ranges[i]
    if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue
    let mode = cm.getModeAt(range.head)
    let indented = false
    if (mode.electricChars) {
      for (let j = 0; j < mode.electricChars.length; j++)
        if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
          indented = indentLine(cm, range.head.line, "smart")
          break
        }
    } else if (mode.electricInput) {
      if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
        indented = indentLine(cm, range.head.line, "smart")
    }
    if (indented) signalLater(cm, "electricInput", cm, range.head.line)
  }
}

export function copyableRanges(cm) {
  let text = [], ranges = []
  for (let i = 0; i < cm.doc.sel.ranges.length; i++) {
    let line = cm.doc.sel.ranges[i].head.line
    let lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
    ranges.push(lineRange)
    text.push(cm.getRange(lineRange.anchor, lineRange.head))
  }
  return {text: text, ranges: ranges}
}

export function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
  field.setAttribute("autocorrect", autocorrect ? "" : "off")
  field.setAttribute("autocapitalize", autocapitalize ? "" : "off")
  field.setAttribute("spellcheck", !!spellcheck)
}

export function hiddenTextarea() {
  let te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none")
  let div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
  // The textarea is kept positioned near the cursor to prevent the
  // fact that it'll be scrolled into view on input from scrolling
  // our fake cursor out of view. On webkit, when wrap=off, paste is
  // very slow. So make the area wide instead.
  if (webkit) te.style.width = "1000px"
  else te.setAttribute("wrap", "off")
  // If border: 0; -- iOS fails to open keyboard (issue #1287)
  if (ios) te.style.border = "1px solid black"
  disableBrowserMagic(te)
  return div
}

cmd: