public/static/common/js/plugin/slickgrid/slick.remotemodel.js

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(function ($) {
  /***
   * A sample AJAX data store implementation.
   * Right now, it's hooked up to load Hackernews stories, but can
   * easily be extended to support any JSONP-compatible backend that accepts paging parameters.
   */
  function RemoteModel() {
    // private
    var PAGESIZE = 50;
    var data = {length: 0};
    var searchstr = "";
    var sortcol = null;
    var sortdir = 1;
    var h_request = null;
    var req = null; // ajax request

    // events
    var onDataLoading = new Slick.Event();
    var onDataLoaded = new Slick.Event();


    function init() {
    }


    function isDataLoaded(from, to) {
      for (var i = from; i <= to; i++) {
        if (data[i] == undefined || data[i] == null) {
          return false;
        }
      }

      return true;
    }


    function clear() {
      for (var key in data) {
        delete data[key];
      }
      data.length = 0;
    }


    function ensureData(from, to) {
      if (req) {
        req.abort();
        for (var i = req.fromPage; i <= req.toPage; i++)
          data[i * PAGESIZE] = undefined;
      }

      if (from < 0) {
        from = 0;
      }

      if (data.length > 0) {
        to = Math.min(to, data.length - 1);
      }

      var fromPage = Math.floor(from / PAGESIZE);