Query Dom node Value

Source: Internet
Author: User

Query the DOM element value

 

 

/*

 
* Browser example snippet: query DOM node value

 
*

 
* For a list of all SWT example snippets see

 
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets

 
*/

import 

org.eclipse.swt.SWT;

import 

org.eclipse.swt.browser.Browser;

import 

org.eclipse.swt.browser.ProgressEvent;

import 

org.eclipse.swt.browser.ProgressListener;

import 

org.eclipse.swt.browser.StatusTextEvent;

import 

org.eclipse.swt.browser.StatusTextListener;

import 

org.eclipse.swt.layout.FillLayout;

import 

org.eclipse.swt.widgets.Display;

import 

org.eclipse.swt.widgets.Shell;

public class 

Snippet160 
{

  
public static 

void 

main
(
String
[] 
args
) {

    
final 

String 
html 


";

    
Display display = 
new 

Display
()
;

    
final 

Shell shell = 
new 

Shell
(
display
)
;

    
shell.setLayout
(
new 

FillLayout
())
;

    
final 

Browser browser = 
new 

Browser
(
shell, SWT.NONE
)
;

    
browser.addStatusTextListener
(
new 

StatusTextListener
() {

      
public 

void 

changed
(
StatusTextEvent event
) {

        
browser.setData
(
"query"
, event.text
)
;

      
}

    
})
;

    
browser.addProgressListener
(
new 

ProgressListener
() {

      
public 

void 

changed
(
ProgressEvent event
) {

      
}

      
public 

void 

completed
(
ProgressEvent event
) {

        
/*

         
* Use JavaScript to query the desired node content through the

         
* Document Object Model

         


         
* Assign result to the window property status to pass the

         
* result to the StatusTextListener This trick is required since

         
* <code>execute</code> does not return the <code>String</code>

         
* directly.

         
*/

        
boolean 

result = browser

            
.execute
(
"window.status=document.getElementById('myid').childNodes[0].nodeValue;"
)
;

        
if 

(
!result
) {

          
/*

           
* Script may fail or may not be supported on certain

           
* platforms.

           
*/

          
System.out.println
(
"Script was not executed."
)
;

          
return

;

        
}

        
String value = 
(
String

browser.getData
(
"query"
)
;

        
System.out.println
(
"Node value: " 
+ value
)
;

      
}

    
})
;

    
/* Load an HTML document */

    
browser.setText
(
html

)
;

    
shell.open
()
;

    
while 

(
!shell.isDisposed
()) {

      
if 

(
!display.readAndDispatch
())

        
display.sleep
()
;

    
}

    
display.dispose
()
;

  
}

}

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