TableFilter/src/modules/alternateRows.js

define(["exports", "../dom"], function (exports, _dom) {
  "use strict";

  var Dom = _dom.Dom;
  var AlternateRows = (function () {
    var AlternateRows =

    /**
     * Alternating rows color
     * @param {Object} tf TableFilter instance
     */
    function AlternateRows(tf) {
      var f = tf.fObj;
      //defines css class for even rows
      this.evenCss = f.even_row_css_class || "even";
      //defines css class for odd rows
      this.oddCss = f.odd_row_css_class || "odd";

      this.tf = tf;
    };

    AlternateRows.prototype.init = function () {
      if (!this.tf.hasGrid && !this.tf.isFirstLoad) {
        return;
      }
      var rows = this.tf.tbl.rows;
      var noValidRowsIndex = this.tf.validRowsIndex === null;
      //1st index
      var beginIndex = noValidRowsIndex ? this.tf.refRow : 0;
      // nb indexes
      var indexLen = noValidRowsIndex ? this.tf.nbFilterableRows + beginIndex : this.tf.validRowsIndex.length;
      var idx = 0;

      //alternates bg color
      for (var j = beginIndex; j < indexLen; j++) {
        var rowIdx = noValidRowsIndex ? j : this.tf.validRowsIndex[j];
        this.setRowBg(rowIdx, idx);
        idx++;
      }
    };

    AlternateRows.prototype.setRowBg = function (rowIdx, idx) {
      if (!this.tf.alternateBgs || isNaN(rowIdx)) {
        return;
      }
      var rows = this.tf.tbl.rows;
      var i = !idx ? rowIdx : idx;
      this.removeRowBg(rowIdx);
      Dom.addClass(rows[rowIdx], (i % 2) ? this.evenCss : this.oddCss);
    };

    AlternateRows.prototype.removeRowBg = function (idx) {
      if (isNaN(idx)) {
        return;
      }
      var rows = this.tf.tbl.rows;
      Dom.removeClass(rows[idx], this.oddCss);
      Dom.removeClass(rows[idx], this.evenCss);
    };

    AlternateRows.prototype.remove = function () {
      if (!this.tf.hasGrid) {
        return;
      }
      var row = this.tf.tbl.rows;
      for (var i = this.tf.refRow; i < this.tf.nbRows; i++) {
        this.removeRowBg(i);
      }
      this.tf.isStartBgAlternate = true;
    };

    AlternateRows.prototype.enable = function () {
      this.tf.alternateBgs = true;
    };

    AlternateRows.prototype.disable = function () {
      this.tf.alternateBgs = false;
    };

    return AlternateRows;
  })();

  exports.AlternateRows = AlternateRows;
});