如何在Javascript中注册window.external.notify事件处理程序
问题描述:
我试图在HTML/JavaScript应用程序中使用Azure访问控制服务。下面的代码示例会针对选择的身份提供商的认证后显示令牌:如何在Javascript中注册window.external.notify事件处理程序
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script type="text/javascript">
function handleData (data){
document.getElementById('tokenDiv').innerHTML = "Token = " + data;
}
function chooseIdentityProvider (url){
document.getElementById('loginFrame').src = url;
}
// HOW TO register notify event handler?
window.external.notify = handleData;
</script>
<select name="AvailableProviders" onchange="if (this.selectedIndex) chooseIdentityProvider (this.value)">
<option value="-1">Select Identity Provider</option>
<option value="https://login.live.com/login.srf?wa=wsignin1.0&wtrealm=https%3a%2f%2faccesscontrol.windows.net%2f&wreply=https%3a%2f%2fnamespace.accesscontrol.windows.net%3a443%2fv2%2fwsfederation&wp=MBI_FED_SSL&wctx=pr%3djavascriptnotify%26rm%3duri%253awk%253atest">Windows Live ID</option>
<option value="https://www.google.com/accounts/o8/ud?openid.ns=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0&openid.mode=checkid_setup&openid.claimed_id=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0%2fidentifier_select&openid.identity=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0%2fidentifier_select&openid.realm=https%3a%2f%2fnamespace.accesscontrol.windows.net%3a443%2fv2%2fopenid&openid.return_to=https%3a%2f%2fnamespace.accesscontrol.windows.net%3a443%2fv2%2fopenid%3fcontext%3dpr%253djavascriptnotify%2526rm%253duri%25253awk%25253atest%26provider%3dGoogle&openid.ns.ax=http%3a%2f%2fopenid.net%2fsrv%2fax%2f1.0&openid.ax.mode=fetch_request&openid.ax.required=email%2cfullname%2cfirstname%2clastname&openid.ax.type.email=http%3a%2f%2faxschema.org%2fcontact%2femail&openid.ax.type.fullname=http%3a%2f%2faxschema.org%2fnamePerson&openid.ax.type.firstname=http%3a%2f%2faxschema.org%2fnamePerson%2ffirst&openid.ax.type.lastname=http%3a%2f%2faxschema.org%2fnamePerson%2flast">Google</option>
<option value="https://open.login.yahooapis.com/openid/op/auth?openid.ns=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0&openid.mode=checkid_setup&openid.claimed_id=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0%2fidentifier_select&openid.identity=http%3a%2f%2fspecs.openid.net%2fauth%2f2.0%2fidentifier_select&openid.realm=https%3a%2f%2fnamespace.accesscontrol.windows.net%3a443%2fv2%2fopenid&openid.return_to=https%3a%2f%2fnamespace.accesscontrol.windows.net%3a443%2fv2%2fopenid%3fcontext%3dpr%253djavascriptnotify%2526rm%253duri%25253awk%25253atest%26provider%3dYahoo!&openid.ns.ax=http%3a%2f%2fopenid.net%2fsrv%2fax%2f1.0&openid.ax.mode=fetch_request&openid.ax.required=email%2cfullname%2cfirstname%2clastname&openid.ax.type.email=http%3a%2f%2faxschema.org%2fcontact%2femail&openid.ax.type.fullname=http%3a%2f%2faxschema.org%2fnamePerson&openid.ax.type.firstname=http%3a%2f%2faxschema.org%2fnamePerson%2ffirst&openid.ax.type.lastname=http%3a%2f%2faxschema.org%2fnamePerson%2flast">Yahoo!</option>"
</select>
<br />
<iframe id="loginFrame" height="200" width="60%" src="" />
<br />
<div id="tokenDiv"></div>
</body>
</html>
iframe的内容是这样的:
<script type="text/javascript">
try{
window.external.notify(...token...);
}
catch(err){
alert("Error ACS50021: windows.external.Notify is not registered.");
}
</script>
我得到错误:“错误ACS50021:窗口。外部。通知未注册。“
如何在Javascript中注册通知事件处理程序?
答
你有没有启用允许的URL收到消息,是这样的:
// code needed -> allowed parameter to check all URL
var unloadFunc = "(function(){ function navigating(){ window.external.notify('%%' + location.href);} window.onbeforeunload=navigating;return location.href;})();";
var host = wv.InvokeScript("eval", new string[] { unloadFunc });
wv.AllowedScriptNotifyUris = new[] { new Uri(host) };
WV是在XAML
答
web视图元素,如果你正在使用的iframe你将需要使用postMessage API。 http://msdn.microsoft.com/en-us/library/ie/cc197015(v=vs.85).aspx
window.external.notify是一个只能在XAML WebView控件或HTML x-ms-webview控件中工作的API。
这是在浏览器或“浏览器控制”中? – 2012-02-14 20:57:20
这是浏览器,并且可以用于通过手机封装的移动设备上的浏览器控件 – Glaxalg 2012-02-14 22:35:59
我不认为浏览器支持此功能。我认为这只是.NET中的浏览器控件。 – 2012-02-15 14:18:47