macros.java

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			GUIUtilities.error(view,"already-recording",new String[0]);
			return;
		}

		Buffer buffer = jEdit.openFile(null,settings + File.separator
			+ "macros","Temporary_Macro.bsh",true,null);

		if(buffer == null)
			return;

		buffer.remove(0,buffer.getLength());
		buffer.insert(0,jEdit.getProperty("macro.temp.header"));

		recordMacro(view,buffer,true);
	} //}}}

	//{{{ recordMacro() method
	/**
	 * Starts recording a macro.
	 * @param view The view
	 * @since jEdit 2.7pre2
	 */
	public static void recordMacro(View view)
	{
		String settings = jEdit.getSettingsDirectory();

		if(settings == null)
		{
			GUIUtilities.error(view,"no-settings",new String[0]);
			return;
		}

		if(view.getMacroRecorder() != null)
		{
			GUIUtilities.error(view,"already-recording",new String[0]);
			return;
		}

		String name = GUIUtilities.input(view,"record",null);
		if(name == null)
			return;

		name = name.replace(' ','_');

		Buffer buffer = jEdit.openFile(null,null,
			MiscUtilities.constructPath(settings,"macros",
			name + ".bsh"),true,null);

		if(buffer == null)
			return;

		buffer.remove(0,buffer.getLength());
		buffer.insert(0,jEdit.getProperty("macro.header"));

		recordMacro(view,buffer,false);
	} //}}}

	//{{{ stopRecording() method
	/**
	 * Stops a recording currently in progress.
	 * @param view The view
	 * @since jEdit 2.7pre2
	 */
	public static void stopRecording(View view)
	{
		Recorder recorder = view.getMacroRecorder();

		if(recorder == null)
			GUIUtilities.error(view,"macro-not-recording",null);
		else
		{
			view.setMacroRecorder(null);
			if(!recorder.temporary)
				view.setBuffer(recorder.buffer);
			recorder.dispose();
		}
	} //}}}

	//{{{ runTemporaryMacro() method
	/**
	 * Runs the temporary macro.
	 * @param view The view
	 * @since jEdit 2.7pre2
	 */
	public static void runTemporaryMacro(View view)
	{
		String settings = jEdit.getSettingsDirectory();

		if(settings == null)
		{
			GUIUtilities.error(view,"no-settings",new String[0]);
			return;
		}

		String path = MiscUtilities.constructPath(
			jEdit.getSettingsDirectory(),"macros",
			"Temporary_Macro.bsh");

		Handler handler = getHandler("beanshell");
		Macro temp = handler.createMacro(path,path);

		Buffer buffer = view.getBuffer();

		try
		{
			buffer.beginCompoundEdit();
			temp.invoke(view);
		}
		finally
		{
			/* I already wrote a comment expaining this in
			 * Macro.invoke(). */
			if(buffer.insideCompoundEdit())
				buffer.endCompoundEdit();
		}
	} //}}}

	//{{{ runLastMacro() method
	/**
	 * Runs the most recently run or recorded macro.
	 * @param view The view
	 * @since jEdit 2.7pre2
	 */
	public static void runLastMacro(View view)
	{
		if(lastMacro == null)
			view.getToolkit().beep();
		else
			lastMacro.invoke(view);
	} //}}}

	//{{{ Private members

	//{{{ Static variables
	private static String systemMacroPath;
	private static String userMacroPath;

	private static ArrayList macroHandlers;

	private static ActionSet macroActionSet;
	private static Vector macroHierarchy;
	private static Hashtable macroHash;
	private static Macro lastMacro;
	//}}}

	//{{{ Class initializer
	static
	{
		macroHandlers = new ArrayList();
		registerHandler(new BeanShellHandler());
		macroActionSet = new ActionSet(jEdit.getProperty("action-set.macros"));
		jEdit.addActionSet(macroActionSet);
		macroHierarchy = new Vector();
		macroHash = new Hashtable();
	} //}}}

	//{{{ loadMacros() method
	private static void loadMacros(Vector vector, String path, File directory)
	{
		File[] macroFiles = directory.listFiles();
		if(macroFiles == null || macroFiles.length == 0)
			return;

		for(int i = 0; i < macroFiles.length; i++)
		{
			File file = macroFiles[i];
			String fileName = file.getName();
			if(file.isHidden())
			{
				/* do nothing! */
				continue;
			}
			else if(file.isDirectory())
			{
				String submenuName = fileName.replace('_',' ');
				Vector submenu = null;
				//{{{ try to merge with an existing menu first
				for(int j = 0; j < vector.size(); j++)
				{
					Object obj = vector.get(j);
					if(obj instanceof Vector)
					{
						Vector vec = (Vector)obj;
						if(((String)vec.get(0)).equals(submenuName))
						{
							submenu = vec;
							break;
						}
					}
				} //}}}
				if(submenu == null)
				{
					submenu = new Vector();
					submenu.addElement(submenuName);
					vector.addElement(submenu);
				}

				loadMacros(submenu,path + fileName + '/',file);
			}
			else
			{
				Handler handler = getHandlerForPathName(file.getPath());

				if(handler == null)
					continue;

				try
				{
					Macro newMacro = handler.createMacro(
						path + fileName, file.getPath());
					vector.addElement(newMacro);
					macroActionSet.addAction(newMacro);
					macroHash.put(newMacro.getName(),newMacro);
				}
				catch (Exception e)
				{
					Log.log(Log.ERROR, Macros.class, e);
					macroHandlers.remove(handler);
				}
			}
		}
	} //}}}

	//{{{ recordMacro() method
	/**
	 * Starts recording a macro.
	 * @param view The view
	 * @param buffer The buffer to record to
	 * @param temporary True if this is a temporary macro
	 * @since jEdit 3.0pre5
	 */
	private static void recordMacro(View view, Buffer buffer, boolean temporary)
	{
		Handler handler = getHandler("beanshell");
		String path = buffer.getPath();
		lastMacro = handler.createMacro(path,path);

		view.setMacroRecorder(new Recorder(view,buffer,temporary));

		// setting the message to 'null' causes the status bar to check
		// if a recording is in progress
		view.getStatus().setMessage(null);
	} //}}}

	//}}}

	//{{{ Recorder class
	/**
	 * Handles macro recording.
	 */
	public static class Recorder implements EBComponent
	{
		View view;
		Buffer buffer;
		boolean temporary;

		boolean lastWasInput;

		//{{{ Recorder constructor
		public Recorder(View view, Buffer buffer, boolean temporary)
		{
			this.view = view;
			this.buffer = buffer;
			this.temporary = temporary;
			EditBus.addToBus(this);
		} //}}}

		//{{{ record() method
		public void record(String code)
		{
			if(lastWasInput)
			{
				lastWasInput = false;
				append("\");");
			}

			append("\n");
			append(code);
		} //}}}

		//{{{ record() method
		public void record(int repeat, String code)
		{
			if(repeat == 1)
				record(code);
			else
			{
				record("for(int i = 1; i <= " + repeat + "; i++)\n"
					+ "{\n"
					+ code + "\n"
					+ "}");
			}
		} //}}}

		//{{{ record() method
		public void record(int repeat, char ch)
		{
			// record \n and \t on lines specially so that auto indent
			// can take place
			if(ch == '\n')
				record(repeat,"textArea.userInput(\'\\n\');");
			else if(ch == '\t')
				record(repeat,"textArea.userInput(\'\\t\');");
			else
			{
				StringBuffer buf = new StringBuffer();
				for(int i = 0; i < repeat; i++)
					buf.append(ch);
				String charStr = MiscUtilities.charsToEscapes(buf.toString());

				if(lastWasInput)
					append(charStr);
				else
				{
					append("\ntextArea.setSelectedText(\"" + charStr);
					lastWasInput = true;
				}
			}
		} //}}}

		//{{{ handleMessage() method
		public void handleMessage(EBMessage msg)
		{
			if(msg instanceof BufferUpdate)
			{
				BufferUpdate bmsg = (BufferUpdate)msg;
				if(bmsg.getWhat() == BufferUpdate.CLOSED)
				{
					if(bmsg.getBuffer() == buffer)
						stopRecording(view);
				}
			}
		} //}}}

		//{{{ append() method
		private void append(String str)
		{
			buffer.insert(buffer.getLength(),str);
		} //}}}

		//{{{ dispose() method
		private void dispose()
		{
			if(lastWasInput)
			{
				lastWasInput = false;
				append("\");");
			}

			for(int i = 0; i < buffer.getLineCount(); i++)
			{
				buffer.indentLine(i,true,true);
			}

			EditBus.removeFromBus(this);

			// setting the message to 'null' causes the status bar to
			// check if a recording is in progress
			view.getStatus().setMessage(null);
		} //}}}
	} //}}}

	//{{{ Handler class
	/**
	 * Encapsulates creating and invoking macros in arbitrary scripting languages
	 * @since jEdit 4.0pre6
	 */
	public static abstract class Handler
	{
		//{{{ getName() method
		public String getName()
		{
			return name;
		} //}}}

		//{{{ getLabel() method
		public String getLabel()
		{
			return label;
		} //}}}

		//{{{ accept() method
		public boolean accept(String path)
		{
			return filter.isMatch(MiscUtilities.getFileName(path));
		} //}}}

		//{{{ createMacro() method
		public abstract Macro createMacro(String macroName, String path);
		//}}}

		//{{{ runMacro() method
		/**
		 * Runs the specified macro.
		 * @param view The view - may be null.
		 * @param macro The macro.
		 */
		public abstract void runMacro(View view, Macro macro);
		//}}}

		//{{{ runMacro() method
		/**
		 * Runs the specified macro. This method is optional; it is
		 * called if the specified macro is a startup script. The
		 * default behavior is to simply call {@link #runMacro(View,Macros.Macro)}.
		 *
		 * @param view The view - may be null.
		 * @param macro The macro.
		 * @param ownNamespace  A hint indicating whenever functions and
		 * variables defined in the script are to be self-contained, or
		 * made available to other scripts. The macro handler may ignore
		 * this parameter.
		 * @since jEdit 4.1pre3
		 */
		public void runMacro(View view, Macro macro, boolean ownNamespace)
		{
			runMacro(view,macro);
		} //}}}

		//{{{ Handler constructor
		protected Handler(String name)
		{
			this.name = name;
			label = jEdit.getProperty("macro-handler."
				+ name + ".label", name);
			try
			{
				filter = new RE(MiscUtilities.globToRE(
					jEdit.getProperty(
					"macro-handler." + name + ".glob")));
			}
			catch (Exception e)
			{
				throw new InternalError("Missing or invalid glob for handler " + name);
			}
		} //}}}

		//{{{ Private members
		private String name;
		private String label;
		private RE filter;
		//}}}
	} //}}}

	//{{{ BeanShellHandler class
	static class BeanShellHandler extends Handler
	{
		//{{{ BeanShellHandler constructor
		BeanShellHandler()
		{
			super("beanshell");
		} //}}}

		//{{{ createMacro() method
		public Macro createMacro(String macroName, String path)
		{
			// Remove '.bsh'
			macroName = macroName.substring(0, macroName.length() - 4);

			return new Macro(this, macroName,
				Macro.macroNameToLabel(macroName), path);
		} //}}}

		//{{{ runMacro() method
		public void runMacro(View view, Macro macro)
		{
			BeanShell.runScript(view,macro.getPath(),null,true);
		} //}}}

		//{{{ runMacro() method
		public void runMacro(View view, Macro macro, boolean ownNamespace)
		{
			BeanShell.runScript(view,macro.getPath(),null,ownNamespace);
		} //}}}
	} //}}}
}