PhantomJS switchToFocusedFrame()|极客教程

PhantomJS switchToFocusedFrame()

switchToFocusedFrame()方法选择处于焦点的框架。

语法

其语法如下：

var wpage = require('webpage').create(); 
wpage.switchToFocusedFrame();

示例

var page = require('webpage').create(); 
page.open('http://localhost/tasks/frames.html', function(status) { 
   page.switchToFocusedFrame(); 
   console.log(page.focusedFrameName); 
});

frames.html

<html> 
   <head>
      <title>welcome to phantomjs</title>
   </head> 

   <body name = "content"> 
      <script type = "text/javascript"> 
         window.name = "page2"; 
         console.log('welcome to cookie example'); 
         document.cookie = "username = Roy; expires = Thu, 22 Dec 2017 12:00:00 UTC"; 

         window.onload =  function() {  
            console.log("page is loaded"); 
         } 
      </script> 

      <iframe src = "http://localhost/tasks/a.html" width = "800" height = "800" 
         name = "myframe" id = "myframe"></iframe> 
      <iframe src = "http://localhost/tasks/content.html" width = "800" height = "800" 
         name = "myframe1" id = "myframe1"></iframe> 
      <iframe src = "http://localhost/tasks/click.html" width = "800" height = "800" 
         name = "myframe2" id = "myframe2"></iframe>  
      <h1>Welcome to PhantomJS</h1> 
   </body>

</html>

上述程序生成以下输出。