在嵌入页面之间或从main到embed传递javascript全局变量

Question

i have a html page with 2 embed pages 我有2个嵌入页面的html页面

<body>
    <embed src ="toolbar.html" type="application/xhtml+xml"  width="485px" height="60px">
    <embed src="editor.svg" type="image/svg+xml" width="595px" height="842px">
</body>

the first is a toolbar (jquery ui) the second is an xml page with svg in it. 第一个是工具栏（jquery ui），第二个是其中包含svg的xml页面。 both pages have scripts. 两个页面都有脚本。 Is there any way to pass a variable defined in a script from the toolbar to the svg ? 有什么方法可以将脚本中定义的变量从工具栏传递到svg吗？

or if that isn't possible: 或如果不可能：

is there any way to pass a variable defined in the current document to an embedded page ? 有什么方法可以将当前文档中定义的变量传递给嵌入式页面？

tnx in advance 提前发送

Answer 1

Turn the embed elements into iframe elements, don't forget the close tags. 将embed元素变成iframe元素，别忘了close标签。
The W3 - Technical Review - HTML 5 - The embed element mentions W3-技术评论-HTML 5- embed元素提及

The embed element represents an integration point for an external (typically non-HTML) application or interactive content. embed元素表示外部（通常为非HTML）应用程序或交互式内容的集成点。

so you should rather use iframe elements instead of embed elements, which mentions: 因此，您应该使用iframe元素而不是embed元素，其中提到：

The iframe element represents a nested browsing context. iframe元素表示嵌套的浏览上下文。

in which a browsing context is defined as: 浏览上下文定义为：

A browsing context is an environment in which Document objects are presented to the user. 浏览上下文是将文档对象呈现给用户的环境。
You can declaring a global variable in a script you use in the main page. 您可以在主页中使用的脚本中声明全局变量。
It is as simple as var myvariable; 它就像var myvariable;一样简单var myvariable;
You can access the variable from within an iframe using window.parent.myvariable . 您可以使用window.parent.myvariable在iframe中访问变量。
The DOM object window.parent is defined as such: DOM对象window.parent的定义如下：

Returns a reference to the parent of the current window or subframe. 返回对当前窗口或子帧的父级的引用。

If a window does not have a parent, its parent property is a reference to itself. 如果窗口没有父窗口，则其父属性是对自身的引用。

When a window is loaded in an <iframe> , <object> , or <frame> , its parent is the window with the element embedding the window. 当将窗口加载到<iframe> ， <object>或<frame> ，其父窗口是带有嵌入该窗口的元素的窗口。

A shortened version is to use parent.myvariable , as window is the root DOM object. 简化的版本是使用parent.myvariable ，因为window是根DOM对象。
Make sure that the domains, protocols and ports of the different documents match. 确保不同文档的域，协议和端口匹配。
Unless you want to be presented with a nasty error like: 除非您想要出现一个讨厌的错误，例如：

Unsafe JavaScript attempt to access frame with URL X from frame with URL Y. 不安全的JavaScript尝试从URL Y的框架访问URL X的框架。
Domains, protocols and ports must match. 域，协议和端口必须匹配。

在嵌入页面之间或从main到embed传递javascript全局变量

问题描述

1 个解决方案

解决方案1
1 已采纳 2011-08-04 15:54:48

在嵌入页面之间或从main到embed传递javascript全局变量

问题描述

1 个解决方案

解决方案1 1 已采纳 2011-08-04 15:54:48

解决方案1
1 已采纳 2011-08-04 15:54:48