/*

 *

 *  Ajax Autocomplete for jQuery, version 1.0.3

 *  (c) 2009 Tomas Kirda

 *

 *  Ajax Autocomplete for jQuery is freely distributable under the terms of an MIT-style license.

 *  For details, see the web site: http://www.devbridge.com/projects/autocomplete/jquery/

 *

 *  Last Review: 11:30 AM 3/24/2009

 *

 */



(function($) {



  $.fn.autocomplete = function(options) {

    return this.each(function() {

      return new Autocomplete(this, options);

    });

  };



  var Autocomplete = function(el, options) {

    this.el = $(el);

    this.id = this.el.attr('id');

    this.el.attr('autocomplete', 'off');

    this.suggestions = [];

    this.data = [];

    this.badQueries = [];

    this.selectedIndex = -1;

    this.currentValue = this.el.val();

    this.intervalId = 0;

    this.cachedResponse = [];

    this.onChangeInterval = null;

    this.ignoreValueChange = false;

    this.serviceUrl = options.serviceUrl;

    this.options = {

      autoSubmit: false,

      minChars: 1,

      maxHeight: 300,

      deferRequestBy: 0,

      width: 0,

      highlight: true

    };

    if (options) { $.extend(this.options, options); }

    this.initialize();

  };



  Autocomplete.isArray = function(obj) { return obj && obj.constructor === Array; };



  Autocomplete.highlight = function(value, re) {

    return value.replace(re, function(match) { return '<strong>' + match + '<\/strong>'; });

  };



  Autocomplete.prototype = {



    killerFn: null,



    initialize: function() {



      var me = this;



      this.killerFn = function(e) {

        if ($(e.target).parents('.autocomplete').size() === 0) {

          me.killSuggestions();

          me.disableKillerFn();

        }

      };



      var uid = new Date().getTime()

      var autocompleteElId = 'Autocomplete_' + uid;



      if (!this.options.width) { this.options.width = this.el.width(); }

      this.mainContainerId = 'AutocompleteContainter_' + uid;



      $('<div id="' + this.mainContainerId + '" style="position:absolute;"><div class="autocomplete-w1"><div class="autocomplete-w2"><div class="autocomplete" id="' + autocompleteElId + '" style="display:none; width:' + this.options.width + 'px;"></div></div></div></div>').appendTo('body');



      this.container = $('#' + autocompleteElId);

      this.fixPosition();

      if (window.opera) {

        this.el.keypress(function(e) { me.onKeyPress(e); });

      } else {

        this.el.keydown(function(e) { me.onKeyPress(e); });

      }

      this.el.keyup(function(e) { me.onKeyUp(e); });

      this.el.blur(function() { me.enableKillerFn(); });

      this.el.focus(function() { me.fixPosition(); });



      this.container.css({ maxHeight: this.options.maxHeight + 'px' });

    },



    fixPosition: function() {

      var offset = this.el.offset();

      $('#' + this.mainContainerId).css({ top: (offset.top + this.el.height()) + 'px', left: offset.left + 'px' });

    },



    enableKillerFn: function() {

      var me = this;

      $(document).bind('click', me.killerFn);

    },



    disableKillerFn: function() {

      var me = this;

      $(document).unbind('click', me.killerFn);

    },



    killSuggestions: function() {

      var me = this;

      this.stopKillSuggestions();

      this.intervalId = window.setInterval(function() { me.hide(); me.stopKillSuggestions(); }, 300);

    },



    stopKillSuggestions: function() {

      window.clearInterval(this.intervalId);

    },



    onKeyPress: function(e) {

      if (!this.enabled) { return; }

      // return will exit the function

      // and event will not fire

      switch (e.keyCode) {

        case 27: //Event.KEY_ESC:

          this.el.val(this.currentValue);

          this.hide();

          break;

        case 9: //Event.KEY_TAB:

        case 13: //Event.KEY_RETURN:

          if (this.selectedIndex === -1) {

            this.hide();

            return;

          }

          this.select(this.selectedIndex);

          if (e.keyCode === 9/* Event.KEY_TAB */) { return; }

          break;





        case 38: //Event.KEY_UP:

          this.moveUp();

          break;

        case 40: //Event.KEY_DOWN:

          this.moveDown();

          break;

        default:

          return;

      }

      e.stopImmediatePropagation();

      e.preventDefault();

    },



    onKeyUp: function(e) {

      switch (e.keyCode) {

        case 38: //Event.KEY_UP:

        case 40: //Event.KEY_DOWN:

          return;

      }

      clearInterval(this.onChangeInterval);

      if (this.currentValue !== this.el.val()) {

        if (this.options.deferRequestBy > 0) {

          // Defer lookup in case when value changes very quickly:

          this.onChangeInterval = setInterval((function() {

            this.onValueChange();

          }).bind(this), this.options.deferRequestBy);

        } else {

          this.onValueChange();

        }

      }

    },



    onValueChange: function() {

      clearInterval(this.onChangeInterval);

      this.currentValue = this.el.val();

      this.selectedIndex = -1;

      if (this.ignoreValueChange) {

        this.ignoreValueChange = false;

        return;

      }

      if (this.currentValue === '' || this.currentValue.length < this.options.minChars) {

        this.hide();

      } else {

        this.getSuggestions();

      }

    },



    getSuggestions: function() {

      var cr = this.cachedResponse[this.currentValue];

      if (cr && Autocomplete.isArray(cr.suggestions)) {

        this.suggestions = cr.suggestions;

        this.data = cr.data;

        this.suggest();

      } else if (!this.isBadQuery(this.currentValue)) {

        var me = this;

        $.get(this.serviceUrl, { query: this.currentValue }, function(json) { me.processResponse(json); }, 'json');

      }

    },



    isBadQuery: function(q) {

      var i = this.badQueries.length;

      while (i--) {

        if (q.indexOf(this.badQueries[i]) === 0) { return true; }

      }

      return false;

    },



    hide: function() {

      this.enabled = false;

      this.selectedIndex = -1;

      this.container.hide();

    },



    suggest: function() {

      if (this.suggestions.length === 0) {

        this.hide();

        return;

      }



      if (this.options.highlight) {

        var matches = this.currentValue.match(/\w+/g);

        var re = new RegExp('\\b' + matches.join('|\\b'), 'gi');

      }

      var me = this;

      var len = this.suggestions.length;

      var div;

      this.container.html('');

      for (var i = 0; i < len; i++) {

        div = $((me.selectedIndex === i ? '<div class="selected"' : '<div') + ' title="' + me.suggestions[i] + '">' + Autocomplete.highlight(me.suggestions[i], re) + '</div>');

        div.mouseover((function(xi) { return function() { me.activate(xi); }; })(i));

        div.click((function(xi) { return function() { me.select(xi); }; })(i));

        //console.log(div);

        this.container.append(div);

      }

      this.enabled = true;

      this.container.show();

    },



    processResponse: function(json) {

      var response;

      try {

        response = json;

        if (!Autocomplete.isArray(response.data)) { response.data = []; }

      } catch (err) { return; }

      this.suggestions = response.suggestions;

      this.data = response.data;

      this.cachedResponse[response.query] = response;

      if (response.suggestions.length === 0) { this.badQueries.push(response.query); }

      if (response.query === this.currentValue) { this.suggest(); }

    },



    activate: function(index) {

      var divs = this.container.children();

      var activeItem;

      // Clear previous selection:

      if (this.selectedIndex !== -1 && divs.length > this.selectedIndex) {

        $(divs.get(this.selectedIndex)).attr('class', '');

      }

      this.selectedIndex = index;

      if (this.selectedIndex !== -1 && divs.length > this.selectedIndex) {

        activeItem = divs.get(this.selectedIndex);

        $(activeItem).attr('class', 'selected');

      }

      return activeItem;

    },



    deactivate: function(div, index) {

      div.className = '';

      if (this.selectedIndex === index) { this.selectedIndex = -1; }

    },



    select: function(i) {

      var selectedValue = this.suggestions[i];

      if (selectedValue) {

        this.el.val(selectedValue);

        if (this.options.autoSubmit) {

          var f = this.el.parents('form');

          if (f.length > 0) { f.get(0).submit(); }

        }

        this.ignoreValueChange = true;

        this.hide();

        this.onSelect(i);

      }

    },



    moveUp: function() {

      if (this.selectedIndex === -1) { return; }

      if (this.selectedIndex === 0) {

        this.container.children().get(0).className = '';

        this.selectedIndex = -1;

        this.el.val(this.currentValue);

        return;

      }

      this.adjustScroll(this.selectedIndex - 1);

    },



    moveDown: function() {

      if (this.selectedIndex === (this.suggestions.length - 1)) { return; }

      this.adjustScroll(this.selectedIndex + 1);

    },



    adjustScroll: function(i) {

      var activeItem, offsetTop, upperBound, lowerBound;

      activeItem = this.activate(i);

      offsetTop = activeItem.offsetTop;

      upperBound = this.container.scrollTop();

      lowerBound = upperBound + this.options.maxHeight - 25;

      if (offsetTop < upperBound) {

        this.container.scrollTop(offsetTop);

      } else if (offsetTop > lowerBound) {

        this.container.scrollTop(offsetTop - this.options.maxHeight + 25);

      }

      this.el.val(this.suggestions[i]);

    },



    onSelect: function(i) {

      (this.options.onSelect || function() { })(this.suggestions[i], this.data[i]);

    }



  };



})(jQuery);


$(document).ready(function() {

			jQuery.each(jQuery.browser, function(i, val) {

			  if(i=="msie " && jQuery.browser.version.substr(0,3)=="1.9") {

				  $('#zoekveld').autocomplete({ 

						serviceUrl:'/includes/autocomplete.php',

						minChars:1, 

						maxHeight:150,

						width:155,

						// callback function:

						onSelect: function(value, data){  

							window.location = "/zoekresultaten.php?search=" + data;

						}

					});

			  } else {

				  $('#zoekveld').autocomplete({ 

						serviceUrl:'/includes/autocomplete.php',

						minChars:1, 

						maxHeight:150,

						width:154,

						// callback function:

						onSelect: function(value, data){  

							window.location = "/zoekresultaten.php?search=" + data;

						}

					});				  

			  }

			});

		});