Web browser執行javascript
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************//*
* Browser example snippet: modify DOM (executing javascript)
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*
* @since 3.1
*/
import
org.eclipse.swt.SWT;
import
org.eclipse.swt.browser.Browser;
import
org.eclipse.swt.layout.FillLayout;
import
org.eclipse.swt.widgets.Button;
import
org.eclipse.swt.widgets.Composite;
import
org.eclipse.swt.widgets.Display;
import
org.eclipse.swt.widgets.Event;
import
org.eclipse.swt.widgets.Listener;
import
org.eclipse.swt.widgets.Shell;
import
org.eclipse.swt.widgets.Text;
public class
JavascriptExec
{
public static
void
main
(
String
[]
args
) {
final
String
html
=
"<html
><title>Snippet</title><body><p id='myid'>Best Friends</p><p id='myid2'>Cat and Dog</p></body></html
>"
;
Display display =
new
Display
()
;
final
Shell shell =
new
Shell
(
display
)
;
shell.setLayout
(
new
FillLayout
())
;
final
Browser browser =
new
Browser
(
shell, SWT.BORDER
)
;
Composite comp =
new
Composite
(
shell, SWT.NONE
)
;
comp.setLayout
(
new
FillLayout
(
SWT.VERTICAL
))
;
final
Text text =
new
Text
(
comp, SWT.MULTI
)
;
text.setText
(
"var newNode = document.createElement('P'); /r/n"
+
"var text = document.createTextNode('At least when I am around');/r/n"
+
"newNode.appendChild(text);/r/n"
+
"document.getElementById('myid').appendChild(newNode);/r/n"
+
"/r/n"
+
"document.bgColor='yellow';"
)
;
final
Button button =
new
Button
(
comp, SWT.PUSH
)
;
button.setText
(
"Execute Script"
)
;
button.addListener
(
SWT.Selection,
new
Listener
() {
public
void
handleEvent
(
Event event
) {
boolean
result = browser.execute
(
text.getText
())
;
if
(
!result
) {
/* Script may fail or may not be supported on certain platforms. */
System.out.println
(
"Script was not executed."
)
;
}
}
})
;
browser.setText
(
html
)
;
shell.open
()
;
while
(
!shell.isDisposed
()) {
if
(
!display.readAndDispatch
())
display.sleep
()
;
}
display.dispose
()
;
}
}