materio-base-d7/js/materio_search_api_ajax.js

// @codekit-prepend "gui.js"

(function($) {

MaterioSearchApiAjax = function(){
  
  var _History = window.History,
      _isloadingresults = false;
      _$content = $('#content'),
      isExplore = $('.search-results', _$content).length,
      isActuality = $('.actuality-items', _$content).length;
      // TODO:  define $content by module settings  
  /**
  * init()
  */
  function init(){
    trace('init module');

    initSearchAjax();
    initHistoryNav();
    initViewMode();

  };

  /**
  * searchAjax
  */
  function initSearchAjax(){
    // trace('initSearchAjax');
    // $('#edit-searchfield').focus();

    $('#materio-search-api-search-form').bind('submit', function(event) {
      // trace('search submited', event);
      var $this = $(this);
      setTimeout(function(){
        loadResults(getSearchKeys());
      },10);
      return false;
    });  


    // /!\ AUTOCOMPLETE SELECT EVENT need a patch http://drupal.org/node/365241#comment-5374686
    $("#edit-searchfield").bind('autocompleteSelect', function(event) {
      $(this).parents('.form').trigger('submit');
    });
    
    _$content
      .bind('jsp-initialised', function(event, isScrollable){
        trace('isScrollable = '+isScrollable);
        // TODO:  better to check scroll-y than isscrollable, load next page before the end of scroll  
        if(!isScrollable)
          infinitScrollPager();
          // TODO:  what happend when there is no more page
      })
      .bind('jsp-scroll-y', function(event, scrollPositionY, isAtTop, isAtBottom){
          if(isAtBottom)
            infinitScrollPager();
      });

    // trigger updated event for direct html loading
      setTimeout(function(){
        var event = jQuery.Event('resultschanged');
        
        if(isExplore)
          event.container = $('.search-results', _$content);

        if(isActuality)
          event.container = $('.actuality-items', _$content);  

        $.event.trigger(event);  
      }, 10);  
  };

  
  function getSearchKeys(){
    return $('#materio-search-api-search-form').find('input[name*="searchfield"]').val();
  };

  function loadResults(keys){
    // trace('keys', keys);
    if(keys !== undefined){
      keys = keys.replace('/', ' ');

      var types = {};
      $('#edit-bundles-filter', '#materio-search-api-search-form').find('input[type*="checkbox"]').each(function(i){
        $this = $(this);
        // if ( $this.attr('checked') ) {
          
          types[$this.val()] = $this.attr('checked');
        // }
      });
      trace('types', types);


      if(!_isloadingresults){
        _isloadingresults = true;
        $('#materio-search-api-search-form').addClass('loading');
        // TODO:  record ajax path in a variable from materio_search_api_ajax_init
        $.getJSON(Drupal.settings.basePath+Drupal.settings.pathPrefix+'materio_search_api_ajax/search/'+keys, 
          {'types':types},
          function(json){
            trace('json', json);
            $.event.trigger('resultsloaded');      
            _isloadingresults = false;
            $('#materio-search-api-search-form').removeClass('loading');
            updateContent(json);
        });
      }
    }
    
  };

  function updateContent(json){
    if(json.return){

      $('.inner-content',_$content).html(json.return);

      var path = Drupal.settings.basePath + Drupal.settings.pathPrefix + json.search_path + '/' + json.keys;
      
      _History.pushState({content:json.return}, json.keys, path);
      $('input[name=location]','#feedback-form').attr('value', path);

      for (language in Drupal.settings.materio_search_api_ajax.languages) {
        var l = Drupal.settings.materio_search_api_ajax.languages[language];
        $('#block-locale-language li.'+language+' a').attr('href', Drupal.settings.basePath + l.prefix+'/' + json.search_path + '/' + json.keys)        
      };

      var event = jQuery.Event('resultschanged');
      event.container = $('.search-results', _$content);
      $.event.trigger(event);

    }else{
      trace('no results');
    }
  };


  /** 
  * infinit scroll
  */
  function infinitScrollPager(){
    var $nextpage = $('ul.pager .pager-current', _$content).next(),
        href = $('a', $nextpage).attr('href');
    
    if(href){
      if (isExplore)
        loadNextResultsPage(href);

      if(isActuality)
        loadNextActualityPage(href);
    }


  };

  function loadNextResultsPage(href){
    // trace('loadNextResultsPage');
    if(!_isloadingresults){
      var keys = href.match(/explore\/([^\/|\?]+)/);
      var page = href.match(/\?page=([0-9]+)/);
      var url = Drupal.settings.basePath+Drupal.settings.pathPrefix+'materio_search_api_ajax/search/'+keys[1]+'/'+page[1];
      
      loadNextPage(url, $('.materiobase-results', _$content), '.search-results');
    }
  };

  function loadNextActualityPage(href){
    // trace('loadNextActualityPage');
    if(!_isloadingresults){
      var page = href.match(/\?page=([0-9]+)/);
      var url = Drupal.settings.basePath+Drupal.settings.pathPrefix+'materio_search_api_ajax/actuality/'+page[1];

      loadNextPage(url, $('.materiobase-actuality', _$content), '.actuality-items');
    }
  };

  function loadNextPage(url, $container, target){
    trace('loadNextPage');
    _isloadingresults = true;
    $container.addClass('loading');
    $.getJSON(url, function(json){
      trace('json', json);
      _isloadingresults = false;
      $container.removeClass('loading');
      addNextpage(json, target);
    });
  };

  function addNextpage(json, container_class){
    var $newcontent = $(json.return),
        $newitems = $(container_class, $newcontent).children('article').addClass('just-added'),
        $newpager = $('ul.pager', $newcontent);
    
    $(container_class, _$content).append($newitems);
    $('ul.pager', _$content).replaceWith($newpager);

    $(container_class, _$content).children('.just-added').each(function(i){
      // $(this).delay(5000*i).removeClass('just-added');
      var $this = $(this);
      setTimeout(function(){
        $this.removeClass('just-added');
      }, 150*i);
    });

    var event = jQuery.Event('resultscompleted');
    event.container = $(container_class, _$content);
    $.event.trigger(event);
  };

  /**
  * history navigation
  */
  function initHistoryNav(){
    var state = _History.getState();
    _History.log('initial:', state.data, state.title, state.url);    

    _History.Adapter.bind(window,'statechange',function(){ 
      var state = _History.getState(); 
      _History.log('statechange:', state.data, state.title, state.url);
      // TODO:  History : empty content if we go back to the homepage  
      $('.inner-content',_$content).html(state.data.content);
    });

  };

  /**
  * viewmode
  */
  function initViewMode(){
    $('.viewmode-link').click(function(event){
      changeViewMode($(this).attr('rel'), $(this));
    });
  };

  function changeViewMode(vm, $btn){
    $.getJSON(Drupal.settings.basePath+'materio_search_api_ajax/viewmode/change/'+vm, function(json){
      trace('viewmode json', json);
      if (json.statut == "saved"){
        loadResults(getSearchKeys());
        $('.viewmode-link').removeClass('active');
        $btn.addClass('active');
      }
        
    });
  };


  init();


};

  var materiosearchapiajax = new MaterioSearchApiAjax();
  
})(jQuery);