子 iframe onload 事件是否可以触发父窗口上的 URL 更新，并且仍然保留浏览器上的后退按钮功能？

发布于 2024-08-09 03:59:34 字数 2971 浏览 1 评论 0原文

问题在于 iframe/书签能力和后退按钮功能。

我面临的这个问题是如何创建具有可书签 url 的 iframe，而不失去后退按钮功能。假设所有页面都在同一个域中，并且子页面通知父级子页面加载以更新 window.location.hash 属性修改当前浏览器地址栏。
url 的更新在 IE/FF/webkit 上运行良好。但是后退按钮在 IE-8 中按预期工作，但浏览器后退按钮在 FF/webkit 中不起作用（只是 url 发生变化，上一页未加载）。如果我们不更新 window.location.hash 属性，后退按钮可以工作，但窗口 url 没有意义。
有没有办法在浏览器中获得此功能，或者有没有更简单更好的方法来实现它（任何其他js库）。所有页面均由同一服务器提供，以避免权限问题。

以下文件是

index_parent.html （包含 iframe）
son.html
grandson.html

儿子和孙子是链接的，父 iframe 中儿子和孙子之间的任何导航都会更新地址栏，但会破坏 FF 中的后退按钮。

猫索引_parent.html

<html>    
<head>   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />   
 <title>Parent</title>    
    <style>   
        body{   
            margin:0;   
            overflow: hidden;     
        }    
        iframe {   
     border: 1;    
            height: 100%;   
            width: 100%;   
            overflow-x: hidden;   
        }   
    </style>     

      <script language="javascript">    
        function update(url,title){     
        alert("parent_update")    
        document.title=title;    
        window.location.hash ="#" + url; // comment this to get the back button working   
                    //in FF/webkit --but makes the url  non bookmarkable     
         }    
        function parent_loader(){   
        alert("parent_loader")    
        if (window.location.hash.substr(1)) {   
            document.getElementById("embedframe").src=window.location.hash.substr(1);    
        } else {    
            document.getElementById("embedframe").src="son.html";    
        }    
         }    
    </script>   

</head>   
<body onLoad="parent_loader()" >   
<H1> Parent</H1>    
    <iframe name="embedframe" id="embedframe" src="" frameborder="1" ></iframe>   
</body>   
</html>

猫儿子.html

<html>   
<title> son </title>   

<script language="JavaScript">   
function son_loader() {     
    alert("son_loader");    
    if (self.location.href!=top.location.href) {    
          parent.update(location.href, document.title);  
    }   
};   
</script>

<body onload="son_loader()" >  
<H1> son </H1>  
<a href="grandson.html">Grandson <   /a>    
</body>   
</html>

猫孙子.html

<html>   
<title> grandson </title>  

<script language="JavaScript">  
function grandson_loader() {    
    alert("grandson_loader");   
    if (self.location.href!=top.location.href) {    
        parent.update(location.href, document.title);    
    }  
}    

</script>    

<body onload="grandson_loader()" >  

<H1> Grandson </H1>    
<a href="son.html">Father </a>    
</body>   
</html>

原文

The question is on iframes/bookmarkablity and back button functionality.

This issue I am facing is how to create iframes with bookmarkable url's without loosing the back button functionality.Lets say all the pages are in the same domain and the child pages inform parent of the child page load for updating the window.location.hash property to modify the current browser address bar.
The updation of the url works fine on IE/FF/webkit. But the back button works as expected in IE-8 but the browser back-button does not work in FF/webkit (just the url changes the previous page is not loaded). If we don't update the window.location.hash property the back button works but the window url is not meaningful.
Is there a way to get this functionality accross browsers, or is there an easier better way to do it (any other js libs). All pages are served from the same server to get around the permission issue.

The following files are

index_parent.html (contains the iframes)
son.html
grandson.html

son and grandson are linked and any navigation between son and grandson in the parent iframe updates the address bar but breaks the back button in FF.

cat index_parent.html

<html>    
<head>   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />   
 <title>Parent</title>    
    <style>   
        body{   
            margin:0;   
            overflow: hidden;     
        }    
        iframe {   
     border: 1;    
            height: 100%;   
            width: 100%;   
            overflow-x: hidden;   
        }   
    </style>     

      <script language="javascript">    
        function update(url,title){     
        alert("parent_update")    
        document.title=title;    
        window.location.hash ="#" + url; // comment this to get the back button working   
                    //in FF/webkit --but makes the url  non bookmarkable     
         }    
        function parent_loader(){   
        alert("parent_loader")    
        if (window.location.hash.substr(1)) {   
            document.getElementById("embedframe").src=window.location.hash.substr(1);    
        } else {    
            document.getElementById("embedframe").src="son.html";    
        }    
         }    
    </script>   

</head>   
<body onLoad="parent_loader()" >   
<H1> Parent</H1>    
    <iframe name="embedframe" id="embedframe" src="" frameborder="1" ></iframe>   
</body>   
</html>

cat son.html

<html>   
<title> son </title>   

<script language="JavaScript">   
function son_loader() {     
    alert("son_loader");    
    if (self.location.href!=top.location.href) {    
          parent.update(location.href, document.title);  
    }   
};   
</script>

<body onload="son_loader()" >  
<H1> son </H1>  
<a href="grandson.html">Grandson <   /a>    
</body>   
</html>

cat grandson.html

<html>   
<title> grandson </title>  

<script language="JavaScript">  
function grandson_loader() {    
    alert("grandson_loader");   
    if (self.location.href!=top.location.href) {    
        parent.update(location.href, document.title);    
    }  
}    

</script>    

<body onload="grandson_loader()" >  

<H1> Grandson </H1>    
<a href="son.html">Father </a>    
</body>   
</html>

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