来源:自学PHP网 时间:2015-01-26 11:14 作者: 阅读:次
[导读] 本文是对html5跨域通讯之postMessage的用法进行了详细的总结介绍,需要的朋友可以过来参考下,希望对大家有所帮助...
本文是对html5跨域通讯之postMessage的用法进行了详细的总结介绍,需要的朋友可以过来参考下,希望对大家有所帮助
postMessagePortal.html 页面代码 复制代码 代码如下:<!DOCTYPE html> <title>标题</title> <link rel="stylesheet" href="styles.css"> <link rel="icon" href="http://apress.com/favicon.ico"> <script></p> <p>var targetOrigin = "http://22527.vhost20.boxcdn.cn";</p> <p>var defaultTitle = "Portal"; var notificationTimer = null;</p> <p>function messageHandler(e) { if (e.origin == targetOrigin) { notify(e.data); } else { // ignore messages from other origins } }</p> <p>function sendString(s) { document.getElementById("widget").contentWindow.postMessage(s, targetOrigin); }</p> <p> function notify(message) { stopBlinking(); blinkTitle(message, defaultTitle); }</p> <p>function stopBlinking() { if (notificationTimer !== null) { clearTimeout(notificationTimer); } document.title = defaultTitle; }</p> <p>function blinkTitle(m1, m2) { document.title = m1; notificationTimer = setTimeout(blinkTitle, 1000, m2, m1) }</p> <p>function sendStatus() { var statusText = document.getElementById("statusText").value; sendString(statusText); }</p> <p>function loadDemo() { document.getElementById("sendButton").addEventListener("click", sendStatus, true); document.getElementById("stopButton").addEventListener("click", stopBlinking, true); sendStatus(); } window.addEventListener("load", loadDemo, true); window.addEventListener("message", messageHandler, true);</p> <p></script></p> <p><h1>跨域通讯</h1> 传递信息:<input type="text" id="statusText" value="Online"> <button id="sendButton">确定</button> <iframe id="widget" src="http://22527.vhost20.boxcdn.cn/postMessageWidget.html"></iframe> <p> <button id="stopButton">停止标题闪烁</button> </p> postMessageWidget.html页面的代码 复制代码 代码如下:<!DOCTYPE html> <title>标题</title> <link rel="stylesheet" href="styles.css"> <script></p> <p>var targetOrigin = "http://www.weixiu0376.cn";</p> <p>// TODO whitelist array</p> <p>function messageHandler(e) { if (e.origin === "http://www.weixiu0376.cn") { document.getElementById("status").textContent = e.data; } else { // ignore messages from other origins } }</p> <p>function sendString(s) { window.top.postMessage(s, targetOrigin); }</p> <p>function loadDemo() { document.getElementById("actionButton").addEventListener("click", function() { var messageText = document.getElementById("messageText").value; sendString(messageText); }, true);</p> <p>} window.addEventListener("load", loadDemo, true); window.addEventListener("message", messageHandler, true);</p> <p></script> <p>显示接收信息: <strong id="status"></strong><p> <div> <input type="text" id="messageText" value="填写消息内容"> <button id="actionButton">发送消息</button> </div> |
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