/*
* JEditBeanShellAction.java - jEdit BeanShell action
* :tabSize=4:indentSize=4:noTabs=false:
* :folding=explicit:collapseFolds=1:
*
* Copyright (C) 2007 Matthieu Casanova
* Portions Copyright (C) 2000, 2003 Slava Pestov
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package org.gjt.sp.jedit;
import org.gjt.sp.jedit.bsh.*;
import java.awt.Component;
import org.gjt.sp.jedit.textarea.TextArea;
import org.gjt.sp.util.Log;
/**
* An action that evaluates BeanShell code when invoked. BeanShell actions are
* usually loaded from <code>actions.xml</code> and
* <code>browser.actions.xml</code> files; see {@link ActionSet} for syntax
* information.
*
* @see jEdit#getAction(String)
* @see jEdit#getActionNames()
* @see ActionSet
*
* @author Slava Pestov
* @author Matthieu Casanova
* @version $Id: BeanShellAction.java 10803 2007-10-04 20:45:31Z kpouer $
*/
public class JEditBeanShellAction extends JEditAbstractEditAction<TextArea>
{
//{{{ BeanShellAction constructor
public JEditBeanShellAction(String name, String code, String isSelected,
boolean noRepeat, boolean noRecord, boolean noRememberLast)
{
super(name);
this.code = code;
this.isSelected = isSelected;
this.noRepeat = noRepeat;
this.noRecord = noRecord;
this.noRememberLast = noRememberLast;
/* Some characters that we like to use in action names
* ('.', '-') are not allowed in BeanShell identifiers. */
sanitizedName = name.replace('.','_').replace('-','_');
} //}}}
//{{{ invoke() method
public void invoke(TextArea textArea)
{
try
{
if(cachedCode == null)
{
String cachedCodeName = "action_" + sanitizedName;
cachedCode = bsh.cacheBlock(cachedCodeName,code,true);
}
bsh.runCachedBlock(cachedCode,textArea,
new NameSpace(bsh.getNameSpace(),
"BeanShellAction.invoke()"));
}
catch(Throwable e)
{
Log.log(Log.ERROR,this,e);
}
} //}}}
//{{{ isSelected() method
public boolean isSelected(Component comp)
{
if(isSelected == null)
return false;
NameSpace global = bsh.getNameSpace();
try
{
if(cachedIsSelected == null)
{
String cachedIsSelectedName = "selected_" + sanitizedName;
cachedIsSelected = bsh.cacheBlock(cachedIsSelectedName,
isSelected,true);
}
// undocumented hack to allow browser actions to work.
// XXX - clean up in 4.3
global.setVariable("_comp",comp);
return Boolean.TRUE.equals(bsh.runCachedBlock(
cachedIsSelected,null,
new NameSpace(bsh.getNameSpace(),
"BeanShellAction.isSelected()")));
}
catch(Throwable e)
{
Log.log(Log.ERROR,this,e);
// dialogs fuck things up if a menu is visible, etc!
//new BeanShellErrorDialog(view,e);
// so that in the future we don't see streams of
// exceptions
isSelected = null;
return false;
}
finally
{
try
{
global.setVariable("_comp",null);
}
catch(UtilEvalError err)
{
Log.log(Log.ERROR,this,err);
}
}
} //}}}
//{{{ noRepeat() method
public boolean noRepeat()
{
return noRepeat;
} //}}}
//{{{ noRecord() method
public boolean noRecord()
{
return noRecord;
} //}}}
//{{{ noRememberLast() method
/**
* Returns if this edit action should not be remembered as the most
* recently invoked action.
* @since jEdit 4.2pre1
*/
public boolean noRememberLast()
{
return noRememberLast;
} //}}}
//{{{ getCode() method
public String getCode()
{
return code.trim();
} //}}}
//{{{ Private members
private boolean noRepeat;
private boolean noRecord;
private boolean noRememberLast;
private String code;
private String isSelected;
private BshMethod cachedCode;
private BshMethod cachedIsSelected;
private String sanitizedName;
private static final BeanShellFacade<TextArea> bsh = new MyBeanShellFacade();
//}}}
//{{{ MyBeanShellFacade class
private static class MyBeanShellFacade extends BeanShellFacade<TextArea>
{
@Override
protected void setupDefaultVariables(NameSpace namespace, TextArea textArea) throws UtilEvalError
{
if(textArea != null)
{
setVariable(namespace, "buffer",textArea.getBuffer());
setVariable(namespace, "textArea",textArea);
}
}
@Override
protected void resetDefaultVariables(NameSpace namespace) throws UtilEvalError
{
namespace.setVariable("buffer",null, false);
namespace.setVariable("textArea",null, false);
}
@Override
protected void handleException(TextArea textArea, String path, Throwable t)
{
Log.log(Log.ERROR,this, t, t);
// new BeanShellErrorDialog(null,t);
}
} //}}}
}