Function drawSelectionCursor

lib/web/CodeMirror/src/display/selection.js:32–48

(cm, head, output)

// Draws a cursor for the given range
export function drawSelectionCursor(cm, head, output) {
  let pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)

  let cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
  cursor.style.left = pos.left + "px"
  cursor.style.top = pos.top + "px"
  cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"

  if (pos.other) {
    // Secondary cursor, shown when on a 'jump' in bi-directional text
    let otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
    otherCursor.style.display = ""
    otherCursor.style.left = pos.other.left + "px"
    otherCursor.style.top = pos.other.top + "px"
    otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
  }
}

function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }