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A library adding code completion and other advanced features for Java, JavaScript, Perl, and other languages to RSyntaxTextArea.

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/*
 * 07/05/2011
 *
 * Copyright (C) 2011 Robert Futrell
 * robert_futrell at users.sourceforge.net
 * http://fifesoft.com/rsyntaxtextarea
 *
 * This library is distributed under a modified BSD license.  See the included
 * RSTALanguageSupport.License.txt file for details.
 */
package org.fife.rsta.ac.jsp;

import java.util.HashSet;
import java.util.Set;
import javax.swing.ListCellRenderer;

import org.fife.rsta.ac.AbstractMarkupLanguageSupport;
import org.fife.rsta.ac.html.HtmlCellRenderer;
import org.fife.rsta.ac.html.HtmlCompletionProvider;
import org.fife.rsta.ac.html.HtmlLanguageSupport;
import org.fife.ui.autocomplete.AutoCompletion;
import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;


/**
 * Language support for JSP.  Features currently include:
 *
 * 
 *    Code completion for HTML5 tags and attributes.
 *    Code completion for JSTL.
 *    Automatic creation of closing tags for non-self-closing tags.
 * 
 * 
 * @author Robert Futrell
 * @version 1.0
 */
public class JspLanguageSupport extends AbstractMarkupLanguageSupport {

	/**
	 * The completion provider.  This is shared amongst all JSP text areas.
	 */
	private JspCompletionProvider provider;

	/**
	 * A cached set of tags that require closing tags.
	 */
	private static Set tagsToClose = new HashSet();


	/**
	 * Constructor.
	 */
	public JspLanguageSupport() {
		setAutoActivationEnabled(true);
		setParameterAssistanceEnabled(false);
		setShowDescWindow(true);
		tagsToClose = HtmlLanguageSupport.getTagsToClose();
	}


	/**
	 * {@inheritDoc}
	 */
	protected ListCellRenderer createDefaultCompletionCellRenderer() {
		return new HtmlCellRenderer();
	}


	private JspCompletionProvider getProvider() {
		if (provider==null) {
			provider = new JspCompletionProvider();
		}
		return provider;
	}


	/**
	 * {@inheritDoc}
	 */
	public void install(RSyntaxTextArea textArea) {

		HtmlCompletionProvider provider = getProvider();
		AutoCompletion ac = createAutoCompletion(provider);
		ac.install(textArea);
		installImpl(textArea, ac);
		installKeyboardShortcuts(textArea);

		textArea.setToolTipSupplier(null);

	}


	/**
	 * {@inheritDoc}
	 */
	protected boolean shouldAutoCloseTag(String tag) {
		return tagsToClose.contains(tag.toLowerCase());
	}


	/**
	 * {@inheritDoc}
	 */
	public void uninstall(RSyntaxTextArea textArea) {
		uninstallImpl(textArea);
		uninstallKeyboardShortcuts(textArea);
	}


}