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桌面弹出通知

 
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<!DOCTYPE html>
<html>
 <head>
  <title>桌面通知Notification </title>
 
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <script>
	
	</script>
 </head>

 <body>
 
	<input type="button" value="测试桌面通知" onclick = "checkPermissionAndShow()" />
<script>
	window.Notifications = window.Notifications || window.webkitNotifications;

	function checkPermissionAndShow(){
		var perLel = window.Notifications.checkPermission();

		if(perLel == 0){
			console.log('已授权...');
            showNotification();

		}else if(perLel ==1){
			console.log('待授权...');
            window.Notifications.requestPermission(checkPermissionAndShow);

		}else{
			console.log('已禁止...');

		}
	}

	function showNotification(){
		 var newNotification = Notifications.createNotification(
                'http://avatar.csdn.net/4/5/3/1_qyf_5445.jpg',
                '桌面通知',
                '桌面通知 示例');
        newNotification.show();

	}
</script>
 </body>
 
</html>

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