admin/view/javascript/codemirror/addon/search/matchesonscrollbar.js

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../scroll/annotatescrollbar"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "./searchcursor", "../scroll/annotatescrollbar"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  CodeMirror.defineExtension("showMatchesOnScrollbar", function(query, caseFold, options) {
    if (typeof options == "string") options = {className: options};
    if (!options) options = {};
    return new SearchAnnotation(this, query, caseFold, options);
  });

  function SearchAnnotation(cm, query, caseFold, options) {
    this.cm = cm;
    this.options = options;
    var annotateOptions = {listenForChanges: false};
    for (var prop in options) annotateOptions[prop] = options[prop];
    if (!annotateOptions.className) annotateOptions.className = "CodeMirror-search-match";
    this.annotation = cm.annotateScrollbar(annotateOptions);
    this.query = query;
    this.caseFold = caseFold;
    this.gap = {from: cm.firstLine(), to: cm.lastLine() + 1};
    this.matches = [];
    this.update = null;

    this.findMatches();
    this.annotation.update(this.matches);

    var self = this;
    cm.on("change", this.changeHandler = function(_cm, change) { self.onChange(change); });
  }

  var MAX_MATCHES = 1000;

  SearchAnnotation.prototype.findMatches = function() {
    if (!this.gap) return;
    for (var i = 0; i < this.matches.length; i++) {
      var match = this.matches[i];
      if (match.from.line >= this.gap.to) break;
      if (match.to.line >= this.gap.from) this.matches.splice(i--, 1);
    }
    var cursor = this.cm.getSearchCursor(this.query, CodeMirror.Pos(this.gap.from, 0), this.caseFold);
    var maxMatches = this.options && this.options.maxMatches || MAX_MATCHES;
    while (cursor.findNext()) {
      var match = {from: cursor.from(), to: cursor.to()};
      if (match.from.line >= this.gap.to) break;
      this.matches.splice(i++, 0, match);
      if (this.matches.length > maxMatches) break;
    }
    this.gap = null;
  };

  function offsetLine(line, changeStart, sizeChange) {