让JQuery BBQ工作的问题

时间:2011-04-12 08:17:23

标签: jquery jquery-plugins

我还是javascript / jquery的新手,我想学习如何利用看似不错的插件。

我已经像这样链接到jquery和bbq:

<script src="lib/js/jquery.ba-bbq.min.js"></script>
<script src="lib/js/jquery.min.js"></script>

我已插入此代码,这是在Ben Alman网站上的简单实现示例中提供的。

  • 任何人都可以向我解释一下我需要编辑的地方吗?我需要测试什么样的div / tags / classes?

非常感谢。

$(function(){

  // Keep a mapping of url-to-container for caching purposes.
  var cache = {
    // If url is '' (no fragment), display this div's content.
    '': $('.bbq-default')
  };

  // Bind an event to window.onhashchange that, when the history state changes,
  // gets the url from the hash and displays either our cached content or fetches
  // new content to be displayed.
  $(window).bind( 'hashchange', function(e) {

    // Get the hash (fragment) as a string, with any leading # removed. Note that
    // in jQuery 1.4, you should use e.fragment instead of $.param.fragment().
    var url = $.param.fragment();

    // Remove .bbq-current class from any previously "current" link(s).
    $( 'a.bbq-current' ).removeClass( 'bbq-current' );

    // Hide any visible ajax content.
    $( '.bbq-content' ).children( ':visible' ).hide();

    // Add .bbq-current class to "current" nav link(s), only if url isn't empty.
    url && $( 'a[href="#' + url + '"]' ).addClass( 'bbq-current' );

    if ( cache[ url ] ) {
      // Since the element is already in the cache, it doesn't need to be
      // created, so instead of creating it again, let's just show it!
      cache[ url ].show();

    } else {
      // Show "loading" content while AJAX content loads.
      $( '.bbq-loading' ).show();

      // Create container for this url's content and store a reference to it in
      // the cache.
      cache[ url ] = $( '<div class="bbq-item"/>' )

        // Append the content container to the parent container.
        .appendTo( '.bbq-content' )

        // Load external content via AJAX. Note that in order to keep this
        // example streamlined, only the content in .infobox is shown. You'll
        // want to change this based on your needs.
        .load( url, function(){
          // Content loaded, hide "loading" content.
          $( '.bbq-loading' ).hide();
        });
    }
  })

  // Since the event is only triggered when the hash changes, we need to trigger
  // the event now, to handle the hash the page may have loaded with.
  $(window).trigger( 'hashchange' );

});

1 个答案:

答案 0 :(得分:1)

首先 - 你应该在bbq插件之前引用jQuery。

<script src="lib/js/jquery.min.js"></script>
<script src="lib/js/jquery.ba-bbq.min.js"></script>

使用bbq插件时要记住的主要事情是,不是直接操作DOM(例如显示/隐藏事物/ ajax加载等),而是改变浏览器url片段,然后在{{中更改DOM 1}}事件。例如:

hashchange

然后在// Hook up a click handler to and anchor $("#myLink").click(function(){ $.bbq.pushState("show", true); }); 事件中,您将检查hashchange网址片段show,并采取相应的措施。

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