StudentInformationManagement/X-admin/editormd/lib/codemirror/addon/hint/show-hint.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"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var HINT_ELEMENT_CLASS        = "CodeMirror-hint";
  var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";

  // This is the old interface, kept around for now to stay
  // backwards-compatible.
  CodeMirror.showHint = function(cm, getHints, options) {
    if (!getHints) return cm.showHint(options);
    if (options && options.async) getHints.async = true;
    var newOpts = {hint: getHints};
    if (options) for (var prop in options) newOpts[prop] = options[prop];
    return cm.showHint(newOpts);
  };

  var asyncRunID = 0;
  function retrieveHints(getter, cm, options, then) {
    if (getter.async) {
      var id = ++asyncRunID;
      getter(cm, function(hints) {
        if (asyncRunID == id) then(hints);
      }, options);
    } else {
      then(getter(cm, options));
    }
  }

  CodeMirror.defineExtension("showHint", function(options) {
    // We want a single cursor position.
    if (this.listSelections().length > 1 || this.somethingSelected()) return;

    if (this.state.completionActive) this.state.completionActive.close();
    var completion = this.state.completionActive = new Completion(this, options);
    var getHints = completion.options.hint;
    if (!getHints) return;

    CodeMirror.signal(this, "startCompletion", this);
    return retrieveHints(getHints, this, completion.options, function(hints) { completion.showHints(hints); });
  });

  function Completion(cm, options) {
    this.cm = cm;
    this.options = this.buildOptions(options);
    this.widget = this.onClose = null;
  }

  Completion.prototype = {
    close: function() {
      if (!this.active()) return;