Closed
Bug 88150
Opened 24 years ago
Closed 24 years ago
Applet cant call JavaScript function calling applet method in applet start method
Categories
(Core Graveyard :: Java: OJI, defect)
Tracking
(Not tracked)
VERIFIED
FIXED
People
(Reporter: co, Assigned: xiaobin.lu)
Details
Applet cant call JavaScript function calling applet method in applet start
method I have make a very simple applet that call JavaScript function in the
document. That function in turn calls a method of the applet to set the label of
a button of the applet. It is only working halfway through, the JavaScript
function is being called and execute. But it hangs when calling back the applet
method.
<HTML>
<HEAD>
<TITLE>J2JS2J</TITLE>
<SCRIPT><!--
function myJ2JS2JCallback(s){
alert("Half-way through!");
document.myApplet.getButton().setLabel(s);
document.myApplet.doLayout();
document.myApplet.validate();
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<H1>J2JS2J</H1>
<p>
<A HREF=J2JS2J.java>Source code for J2JS2J</A>
<p>
<APPLET name="myApplet" CODE="J2JS2J" CODEBASE="file:///C:/dev" WIDTH="300"
HEIGHT="150" MAYSCRIPT>
</APPLET>
</BODY>
</HTML>
import java.applet.*;
import java.awt.*;
/**
* Creation date: (27/06/2001 21:46:52)
* @author:
*/
public class J2JS2J extends Applet implements java.awt.event.ActionListener{
Button button = new Button("Hello!");
/**
* @see java.awt.event.ActionListener
*/
public void actionPerformed(java.awt.event.ActionEvent e) {
// insert any code to be run when the applet starts here
try {
netscape.javascript.JSObject obj = netscape.javascript.JSObject.getWindow(this);
obj.eval("myJ2JS2JCallback('Lets go Ed, you are my hero!')");
} catch (Throwable ex) {
ex.printStackTrace();
}
}
/**
* Returns information about this applet.
* @return a string of information about this applet
*/
public String getAppletInfo() {
return "J2JS2J\n" +
"\n" +
"Creation date: (27/06/2001 21:46:52)\n" +
"@author: \n" +
"";
}
/**
* Creation date: (27/06/2001 21:48:55)
* @return java.awt.Button
*/
public java.awt.Button getButton() {
return button;
}
/**
* Initializes the applet.
*
* @see #start
* @see #stop
* @see #destroy
*/
public void init() {
super.init();
// insert code to initialize the applet here
setLayout(new FlowLayout());
add(button);
button.addActionListener(this);
}
/**
* Called to start the applet. You never need to call this method
* directly, it is called when the applet's document is visited.
* @see #init
* @see #stop
* @see #destroy
*/
public void start() {
super.start();
}
/**
* Called to stop the applet. It is called when the applet's document is
* no longer on the screen. It is guaranteed to be called before destroy()
* is called. You never need to call this method directly.
* @see #init
* @see #start
* @see #destroy
*/
public void stop() {
super.stop();
// insert any code to be run when the applet is stopped here
}
}
import java.applet.*;
import java.awt.*;
/**
* Creation date: (27/06/2001 21:46:52)
* @author:
*/
public class J2JS2J extends Applet implements java.awt.event.ActionListener{
Button button = new Button("Hello!");
/**
* @see java.awt.event.ActionListener
*/
public void actionPerformed(java.awt.event.ActionEvent e) {
// insert any code to be run when the applet starts here
try {
netscape.javascript.JSObject obj = netscape.javascript.JSObject.getWindow(this);
obj.eval("myJ2JS2JCallback('Lets go Ed, you are my hero!')");
} catch (Throwable ex) {
ex.printStackTrace();
}
}
/**
* Returns information about this applet.
* @return a string of information about this applet
*/
public String getAppletInfo() {
return "J2JS2J\n" +
"\n" +
"Creation date: (27/06/2001 21:46:52)\n" +
"@author: \n" +
"";
}
/**
* Creation date: (27/06/2001 21:48:55)
* @return java.awt.Button
*/
public java.awt.Button getButton() {
return button;
}
/**
* Initializes the applet.
*
* @see #start
* @see #stop
* @see #destroy
*/
public void init() {
super.init();
// insert code to initialize the applet here
setLayout(new FlowLayout());
add(button);
button.addActionListener(this);
}
/**
* Called to start the applet. You never need to call this method
* directly, it is called when the applet's document is visited.
* @see #init
* @see #stop
* @see #destroy
*/
public void start() {
super.start();
}
/**
* Called to stop the applet. It is called when the applet's document is
* no longer on the screen. It is guaranteed to be called before destroy()
* is called. You never need to call this method directly.
* @see #init
* @see #start
* @see #destroy
*/
public void stop() {
super.stop();
// insert any code to be run when the applet is stopped here
}
}
import java.applet.*;
import java.awt.*;
/**
* Creation date: (27/06/2001 21:46:52)
* @author:
*/
public class J2JS2J extends Applet implements java.awt.event.ActionListener{
Button button = new Button("Hello!");
/**
* @see java.awt.event.ActionListener
*/
public void actionPerformed(java.awt.event.ActionEvent e) {
// insert any code to be run when the applet starts here
try {
netscape.javascript.JSObject obj = netscape.javascript.JSObject.getWindow(this);
obj.eval("myJ2JS2JCallback('Lets go Ed, you are my hero!')");
} catch (Throwable ex) {
ex.printStackTrace();
}
}
/**
* Returns information about this applet.
* @return a string of information about this applet
*/
public String getAppletInfo() {
return "J2JS2J\n" +
"\n" +
"Creation date: (27/06/2001 21:46:52)\n" +
"@author: \n" +
"";
}
/**
* Creation date: (27/06/2001 21:48:55)
* @return java.awt.Button
*/
public java.awt.Button getButton() {
return button;
}
/**
* Initializes the applet.
*
* @see #start
* @see #stop
* @see #destroy
*/
public void init() {
super.init();
// insert code to initialize the applet here
setLayout(new FlowLayout());
add(button);
button.addActionListener(this);
}
/**
* Called to start the applet. You never need to call this method
* directly, it is called when the applet's document is visited.
* @see #init
* @see #stop
* @see #destroy
*/
public void start() {
super.start();
}
/**
* Called to stop the applet. It is called when the applet's document is
* no longer on the screen. It is guaranteed to be called before destroy()
* is called. You never need to call this method directly.
* @see #init
* @see #start
* @see #destroy
*/
public void stop() {
super.stop();
// insert any code to be run when the applet is stopped here
}
}
I think you have to do what you're doing in your init() method. Xiaobin, can
you please comment?
Assignee: edburns → xiaobin.lu
Summary: Applet cant call JavaScript function calling applet method in applet start method → Applet cant call JavaScript function calling applet method in applet start method
|
Assignee | |
Comment 2•24 years ago
|
||
Please test it. It works fine with nightly build.
|
|
Assignee | |
Comment 3•24 years ago
|
||
Fixed in trunk with JRE1.3.1.
Status: UNCONFIRMED → RESOLVED
Closed: 24 years ago
Resolution: --- → FIXED
Verified on the commercial trunk (2001-09-06-05-trunk)
Status: RESOLVED → VERIFIED
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Description
•