Jquery postmessage不一致

时间:2010-11-09 15:28:52

标签: jquery postmessage

我正在尝试使用Ben Almans jquery postmessage来调整iFrame的大小。我或多或少地使用不同服务器和动态内容的示例。

我也向该网站发布了一个问题,但实际回答可能是一个太新手的问题。

我已经将它作为跨域发送邮件,但调整大小只是没有用完。我只是转发我在Toby发布的内容:

  

我无法让iFrame在浏览器中持续调整大小。你遇到过这种情况吗?我添加了一个时间戳来知道每个函数何时被调用,而且它很奇怪...:
    - Firefox工作正常 - 子页面在父页面之前运行     - Chrome 7将扩展,而不是缩小。时间戳=父母之前的孩子     - IE 8 ...父母在孩子面前跑步......!和iframe每次点击都会增加30点。

有没有这方面的经验?

添加我的两个页面以供代码参考:
家长

<html>
<head>
<script language="javascript" src="jquery-1.4.2.min.js" type="text/javascript"></script>
<script language="javascript" src="jquery.ba-postmessage.js" type="text/javascript"></script>
<script>
    $(function(){

      // Keep track of the iframe height.
      var if_height,

        // Pass the parent page URL into the Iframe in a meaningful way (this URL could be
        // passed via query string or hard coded into the child page, it depends on your needs).
        //src = 'http://oslsrv03/cross_remote/cross_remote.htm#' + encodeURIComponent( document.location.href ),
        src = 'http://oslsrv01/crosstest/child_postmessage.html#' + encodeURIComponent( document.location.href ),

        // Append the Iframe into the DOM.
        iframe = $( '<iframe " src="' + src + '" width="100%" height="100" scrolling="no" frameborder="1"><\/iframe>' )
          .appendTo( '#zshop' );

      //alert(src);

      // Setup a callback to handle the dispatched MessageEvent event. In cases where
      // window.postMessage is supported, the passed event will have .data, .origin and
      // .source properties. Otherwise, this will only have the .data property.
      $.receiveMessage(function(e){

        // Get the height from the passsed data.
        var h = Number( e.data.replace( /.*if_height=(\d+)(?:&|$)/, '$1' ) );

        if ( !isNaN( h ) && h > 0 && h !== if_height ) {
          // Height has changed, update the iframe.
          iframe.height( if_height = h );
        }

        console.log("beskjed mottat og høyden vi fikk er: " + h);
        var currentDate = new Date()
        console.log("tid parent: " + currentDate.valueOf())

      // An optional origin URL (Ignored where window.postMessage is unsupported).
      }, 'http://oslsrv01' );

      // And for good measure, let's send a toggle_content message to the child.
      $( '<a href="#">Show / hide Iframe content - dette sender beskjeden til iframen.<\/a>' )
        .appendTo( '#nav' )
        .click(function(){
          $.postMessage( 'toggle_content', src, iframe.get(0).contentWindow );
          return false;
        });

    }); 
</script>
</head>

<body style="background-color:orange">
    <div id="nav"></div>

    <div  id="test">

        <div id="zshop" style="border: 3px solid red"></div>

    </div>

    dette er slutten
</body>

儿童

<html>
<head>
<script language="javascript" src="jquery-1.4.2.min.js" type="text/javascript"></script>
<script language="javascript" src="jquery.ba-postmessage.js" type="text/javascript"></script>
<script>
    $(function(){
      // Get the parent page URL as it was passed in, for browsers that don't support
      // window.postMessage (this URL could be hard-coded).
      var parent_url = decodeURIComponent( document.location.hash.replace( /^#/, '' ) ),
        link;

      // The first param is serialized using $.param (if not a string) and passed to the
      // parent window. If window.postMessage exists, the param is passed using that,
      // otherwise it is passed in the location hash (that's why parent_url is required).
      // The second param is the targetOrigin.
      function setHeight() {
        $.postMessage({ if_height: $('body').outerHeight( true ) }, parent_url, parent );
        //alert("barn sender beskejd og høyden som sendes er: " + $('body').outerHeight( true ));
        console.log("barn sender beskejd og høyden som sendes er: " + $('body').outerHeight( true ));
        var currentDate = new Date()
        console.log("tid child: " + currentDate.valueOf())
      };

      // Bind all this good stuff to a link, for maximum clickage.
      link = $( '<a href="#">Show / hide content<\/a>' )
        .appendTo( '#nav' )
        .click(function(){
          $('#toggle').toggle();
          $('#stor').toggle();
          setHeight();
          return false;
        });

      // Now that the DOM has been set up (and the height should be set) invoke setHeight.
      setHeight();

      // And for good measure, let's listen for a toggle_content message from the parent.
      $.receiveMessage(function(e){
        if ( e.data === 'toggle_content' ) {
          link.triggerHandler( 'click' );
        }
      }, 'http://oslsrv03' ); //http://127.0.0.1
    }); 
</script>
</head>

<body style="background-color:white;border: 3px solid black">
    <div id="nav"></div>

    <div  id="toggle">

        nå fra oslsvr03
        <div style="height:200px; background-color:blue;"></div>
    </div>

    <div id="stor" style="height:800px; background-color:orange; display: none">Denne skal ikke vises hele tiden!!!</div>   

</body>

1 个答案:

答案 0 :(得分:3)

忘记将doctype添加到iframe内容中。现在它在我的测试用例中就像一个魅力。在现实世界的场景中有点不那么迷人,但我会看到我在那里做了什么......