/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999, 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.gui.core;
import org.apache.tools.ant.gui.event.*;
import org.apache.tools.ant.gui.command.Command;
import javax.swing.*;
import java.util.*;
import java.lang.reflect.Constructor;
/**
* Manager of antidote actions. Receives its configuration from the action
* ResourceBundle.
*
* @version $Revision: 1.4 $
* @author Simeon Fitch
*/
public class ActionManager {
/** Parameters for the Command constructor. */
private static final Class[] COMMAND_CTOR_PARAMS = { AppContext.class };
/** Externalized resources. */
private ResourceManager _resources = null;
/** Array of action identifiers. */
private String[] _actionIDs = null;
/** Look table of all defined actions. */
private Map _actions = new HashMap();
/** Event bus. */
private EventBus _bus = null;
/** Class for storing the event type to action type
* mapping for setting enabled state. */
private EventToActionMapper _mapper = null;
/**
* Standard ctor.
*
* @param bus Event bus to post events to.
* @param resources Location of resources.
*/
public ActionManager(EventBus bus, ResourceManager resources) {
_bus = bus;
_resources = resources;
bus.addMember(EventBus.RESPONDING, new Enabler());
_mapper = new EventToActionMapper();
// Configure the set of actions.
String[] names = _resources.getStringArray("actions");
_actionIDs = new String[names.length];
for(int i = 0; i < _actionIDs.length; i++) {
_actionIDs[i] = names[i];
AntAction action = new AntAction(_resources, _bus, _actionIDs[i]);
_actions.put(_actionIDs[i], action);
// For each action we need to add the reverse event trigger
// lookup.
_mapper.addAction(action);
}
}
/**
* Create a menubar for the application based on the configuration file.
*
* @return Menubar.
*/
public JMenuBar createMenuBar() {
JMenuBar retval = new JMenuBar();
Map menus = new HashMap();
String toTok = _resources.getString("menus");
StringTokenizer tok = new StringTokenizer(toTok, ", ");
while(tok.hasMoreTokens()) {
String name = tok.nextToken();
JMenu menu = new JMenu(name);
// XXX should be in config file
menu.setMnemonic(name.charAt(0));
// XXX need to i18n here...
if(name.equalsIgnoreCase("help")) {
try {
retval.setHelpMenu(menu);
}
catch(Error err) {
// Catch the "not implemented" error in
// some (all?) Swing implementations
retval.add(menu);
}
}
else {
retval.add(menu);
}
menus.put(name, menu);
}
for(int i = 0; i < _actionIDs.length; i++) {
AntAction action = (AntAction) _actions.get(_actionIDs[i]);
String parent = action.getParentMenuName();
if(parent != null) {
JMenu menu = (JMenu) menus.get(parent);
// A well configured file shouldn't cause this,
// but be safe anyway.
if(menu == null) {
menu = new JMenu(parent);
retval.add(menu);
menus.put(parent, menu);
}
// See if we should add a separator.
if(action.isPreceededBySeparator() &&
menu.getMenuComponentCount() > 0) {
menu.addSeparator();
}
if(!action.isToggle()) {
JMenuItem item = menu.add(action);
item.setAccelerator(action.getAccelerator());
addNiceStuff(item, action);
}
else {
JCheckBoxMenuItem b =
new JCheckBoxMenuItem(action.getName());
b.setActionCommand(action.getID());
b.addActionListener(action);
// XXX eck. This is a 1.3 feature. Fix ME!
// Need to provide binding between action and widget.
// b.setAction(action);
addNiceStuff(b, action);
menu.add(b);
}
}
}
return retval;
}
/**
* Create a tool bar based on the current configuration.
*
* @return Toolbar ready for action.
*/
public JToolBar createToolBar() {
JToolBar retval = new JToolBar();
for(int i = 0; i < _actionIDs.length; i++) {
AntAction action = (AntAction) _actions.get(_actionIDs[i]);
// If it has an icon, then we add it to the toolbar.
if(action.getIcon() != null) {
if(action.isPreceededBySeparator()) {
retval.addSeparator();
}
JButton button = retval.add(action);
button.setText(null);
addNiceStuff(button, action);
}
}
return retval;
}
/**
* Create a popup menu with the given actionIDs.
* XXX check this for object leak. Does the button
* get added to the action as a listener? There are also some
* changes to this behavior in 1.3.
*
* @param actionIDs List of action IDs for actions
* to appear in popup menu.
* @return Popup menu to display.
*/
public JPopupMenu createPopup(String[] actionIDs) {
JPopupMenu retval = new JPopupMenu();
for(int i = 0; i < actionIDs.length; i++) {
AntAction action = (AntAction) _actions.get(actionIDs[i]);
if(action != null) {
AbstractButton button = retval.add(action);
addNiceStuff(button, action);
}
}
return retval;
}
/**
* Get the command assocaited with the Action with the given id.
*
* @param actionID Id of action to get command for.
* @return Command associated with action, or null if none available.
*/
public Command getActionCommand(String actionID, AppContext context) {
Command retval = null;
AntAction action = (AntAction) _actions.get(actionID);
if(action != null) {
Class clazz = action.getCommandClass();
if(clazz != null) {
try {
Constructor ctor =
clazz.getConstructor(COMMAND_CTOR_PARAMS);
retval = (Command) ctor.newInstance(
new Object[] { context });
}
catch(Exception ex) {
// XXX log me.
ex.printStackTrace();
}
}
}
return retval;
}
/**
* Add tool tip, Mnemonic, etc.
*
* @param button Button to work on.
* @param action Associated action.
*/
private void addNiceStuff(AbstractButton button, AntAction action) {
// Set the action command so that it is consitent
// no matter what language the display is in.
button.setActionCommand(action.getID());
// XXX this should be moved to the config file.
String label = button.getText();
if(label != null) {
button.setMnemonic(label.charAt(0));
}
String tip = action.getShortDescription();
if(tip != null) {
button.setToolTipText(tip);
}
}
/** Class for updating the enabled status of icons based
* on the events seen. */
private class Enabler implements BusMember {
private final Filter _filter = new Filter();
/**
* Get the filter to that is used to determine if an event should
* to to the member.
*
* @return Filter to use.
*/
public BusFilter getBusFilter() {
return _filter;
}
/**
* Receives all events.
*
* @param event Event to post.
* @return true if event should be propogated, false if
* it should be cancelled.
*/
public boolean eventPosted(EventObject event) {
_mapper.applyEvent(event);
return true;
}
}
/** Class providing filtering for project events. */
private static class Filter implements BusFilter {
/**
* Determines if the given event should be accepted.
*
* @param event Event to test.
* @return True if event should be given to BusMember, false otherwise.
*/
public boolean accept(EventObject event) {
return true;
}
}
}