/**
 * @preserve jQuery Plugin: Table Filter - version 0.2
 *
 * LICENSE: http://hail2u.mit-license.org/2009
 */

/*jslint indent: 2, browser: true, regexp: true */
/*global jQuery, $ */

(function ($) {
  "use strict";

  $.fn.addTableFilter = function (options) {
    var o = $.extend({}, $.fn.addTableFilter.defaults, options),
      tgt,
      id,
      label,
      input;

    if (this.is("table")) {
      // Generate ID
      if (!this.attr("id")) {
        this.attr({
          id: "t-" + Math.floor(Math.random() * 99999999)
        });
      }
      tgt = this.attr("id");
      id = tgt + "-filtering";

      // Build filtering form
      label = $("<label/>").attr({
        "for": id
      }).append(o.labelText);
      input = $("<input/>").attr({
        id:   id,
        type: "search",
        size: o.size
      });
      $("<p/>").addClass("formTableFilter").append(label).append(input).insertBefore(this);

      // Bind filtering function
      $("#" + id).delayBind("keyup", function (e) {
        var words = $(this).val().toLowerCase().split(" ");
        $("#" + tgt + " tbody tr").each(function () {
          var s = $(this).html().toLowerCase().replace(/<.+?>/g, "").replace(/\s+/g, " "),
            state = 0;
          $.each(words, function () {
            if (s.indexOf(this) < 0) {
              state = 1;
              return false; // break $.each()
            }
          });

          if (state) {
            $(this).hide();
          } else {
            $(this).show();
          }
        });
      }, 300);
    }

    return this;
  };

  $.fn.addTableFilter.defaults = {
    labelText: "Keyword(s): ",
    size:      32
  };

  $.fn.delayBind = function (type, data, func, timeout) {
    if ($.isFunction(data)) {
      timeout = func;
      func    = data;
      data    = undefined;
    }

    var self  = this,
      wait    = null,
      handler = function (e) {
        clearTimeout(wait);
        wait = setTimeout(function () {
          func.apply(self, [$.extend({}, e)]);
        }, timeout);
      };

    return this.bind(type, data, handler);
  };
}(jQuery));