Function heightAtLine

lib/web/CodeMirror/src/line/spans.js:329–346

(lineObj)

// Find the height above the given line.
export function heightAtLine(lineObj) {
  lineObj = visualLine(lineObj)

  let h = 0, chunk = lineObj.parent
  for (let i = 0; i < chunk.lines.length; ++i) {
    let line = chunk.lines[i]
    if (line == lineObj) break
    else h += line.height
  }
  for (let p = chunk.parent; p; chunk = p, p = chunk.parent) {
    for (let i = 0; i < p.children.length; ++i) {
      let cur = p.children[i]
      if (cur == chunk) break
      else h += cur.height
    }
  }
  return h
}

// Compute the character length of a line, taking into account
// collapsed ranges (see markText) that might hide parts, and join