Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3 of the License, or (at your option) 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., 51

 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us at info AT

 * gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.andami.actioninfo.impl;

import java.awt.event.ActionEvent;

import java.net.URL;

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

import java.util.Map;

import javax.swing.AbstractAction;

import javax.swing.Action;

import javax.swing.ImageIcon;

import javax.swing.KeyStroke;

import org.apache.commons.io.FilenameUtils;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.andami.actioninfo.ActionInfo;

import org.gvsig.andami.plugins.ExclusiveUIExtension;

import org.gvsig.andami.plugins.ExtensionHelper;

import org.gvsig.andami.plugins.IExtension;

import org.gvsig.andami.ui.mdiFrame.KeyMapping;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.gvsig.tools.swing.icontheme.IconTheme;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class DefaultActionInfo extends AbstractAction implements ActionInfo {

    /**

     *

     */

    private static final long serialVersionUID = 1620939552263334110L;

    private static Logger logger = LoggerFactory

            .getLogger(DefaultActionInfo.class);

    private Class<? extends IExtension> extensionClass;

    private IExtension extension;

    private String name;

    private String text;

    private String command;

    private String iconName;

    private String accelerator;

    private long position;

    private String tip;

    private List<ActionInfo> redirections;

    private boolean active;

    private Boolean previousEnabled = null;

    DefaultActionInfo(Class<? extends IExtension> extension, String name,

            String text, String command, String icon, String accelerator,

            long position, String tip) {

        this.extensionClass = extension;

        this.name = name;

        this.text = emptyToNull(text);

        this.command = emptyToNull(command);

        this.iconName = emptyToNull(icon);

        this.accelerator = emptyToNull(accelerator);

        this.position = position;

        this.tip = emptyToNull(tip);

        this.redirections = null;

        this.active = true;

        fixIcon();

    }

    public Object clone() throws CloneNotSupportedException {

        DefaultActionInfo other = (DefaultActionInfo) super.clone();

        if (other.redirections != null) {

            other.redirections = new ArrayList<ActionInfo>();

            other.redirections.addAll(this.redirections);

        }

        return other;

    }

    private void fixIcon() {

        if (iconName != null && (iconName.contains("/") || iconName.contains("."))) {

            // it's a file path

            String name = FilenameUtils.getBaseName(iconName);

            IconTheme iconTheme = ToolsSwingLocator.getIconThemeManager().getDefault();

            URL resource = null;

            try {

                resource = this.extensionClass.getClassLoader().getResource(iconName);

            } catch (Exception e) {

                return;

            }

            if (resource == null) {

                return;

            }

            iconTheme.registerDefault(this.getPluginName(), "broken", name, null, resource);

            logger.info("Plugin " + this.getPluginName() + " contains icons out of icon theme (" + iconName + ")");

            iconName = name;

        }

    }

    private String emptyToNull(String s) {

        if (s == null) {

            return null;

        }

        return s.trim().length() < 0 ? null : s;

    }

    public Collection<ActionInfo> getRedirections() {

        if (this.redirections == null) {

            this.redirections = new ArrayList<ActionInfo>();

        }

        return this.redirections;

    }

    public void merge(ActionInfo other) {

        if (this.extensionClass == null) {

            this.extensionClass = other.getExtension().getClass();

            this.extension = other.getExtension();

        }

        if (this.text == null) {

            this.text = other.getLabel();

        }

        if (this.command == null) {

            this.command = other.getCommand();

        }

        if (this.iconName == null) {

            this.iconName = other.getIconName();

        }

        if (this.accelerator == null) {

            this.accelerator = other.getAccelerator();

        }

        if (this.position < 1) {

            this.position = other.getPosition();

        }

        if (this.tip == null) {

            this.tip = other.getTooltip();

        }

    }

    public PluginServices getPlugin() {

        PluginServices plugin = PluginsLocator.getManager().getPlugin(

                this.extensionClass);

        return plugin;

    }

    public String getPluginName() {

        if (this.getPlugin() == null) {

            return null;

        }

        return this.getPlugin().getPluginName();

    }

    public IExtension getExtension() {

        if (this.extension == null) {

            this.extension = PluginsLocator.getManager().getExtension(

                    this.extensionClass);

        }

        return this.extension;

    }

    public String getExtensionName() {

        if (this.extensionClass == null) {

            return null;

        }

        return this.extensionClass.getName();

    }

    public boolean isVisible() {

        if (!this.isActive()) {

            logger.info("isVisible(), action {} not active", this.getName());

            return false;

        }

        ActionInfo redirection = this.getRedirection();

        if (redirection != null) {

            return redirection.isVisible();

        }

        ExclusiveUIExtension eui = PluginsLocator.getManager()

                .getExclusiveUIExtension();

        if (eui == null) {

            return ExtensionHelper.isVisible(this.getExtension(), this.command);

        }

        return eui.isVisible(this.getExtension());

    }

    public boolean isEnabled() {

        boolean value;

        if (!this.isActive()) {

            logger.info("isEnabled(), action {} not active", this.getName());

            value = false;

        } else {

            ActionInfo redirection = this.getRedirection();

            if (redirection != null) {

                value = true;

            } else {

                ExclusiveUIExtension eui = PluginsLocator.getManager()

                        .getExclusiveUIExtension();

                if (eui == null) {

                    value = ExtensionHelper.isEnabled(this.getExtension(), this.command);

                } else {

                    value = eui.isEnabled(this.getExtension());

                }

            }

        }

        if (this.previousEnabled == null || this.previousEnabled.booleanValue() != value) {

            this.setEnabled(value); // force call listeners

        }

        return value;

    }

    private ActionInfo getRedirection() {

        if (this.redirections == null) {

            return null;

        }

        for (int n = this.redirections.size() - 1; n >= 0; n--) {

            ActionInfo redirection = this.redirections.get(n);

            if (redirection.isEnabled()) {

                return redirection;

            }

        }

        return null;

    }

    public void execute() {

//                if (!this.isActive()) {

//                        logger.info("execute(), action {} not active",  this.getName());

//                        return;

//                }

        ActionInfo redirection = this.getRedirection();

        if (redirection != null) {

            logger.info("{}.execute('{}') redirected", this.getPluginName()

                    + ":" + this.getExtensionName(), this.getCommand());

            redirection.execute();

            return;

        }

        logger.info("{}.execute('{}')",

                this.getPluginName() + ":" + this.getExtensionName(),

                this.getCommand());

        this.getExtension().execute(this.command);

    }

    public void execute(Object[] args) {

//                if (!this.isActive()) {

//                        logger.info("execute(args), action {} not active", this.getName());

//                        return;

//                }

        ActionInfo redirection = this.getRedirection();

        if (redirection != null) {

            logger.info("{}.execute('{}', args) redirected", this.getPluginName()

                    + ":" + this.getExtensionName(), this.getCommand());

            redirection.execute(args);

            return;

        }

        logger.info("{}.execute('{}', Object[] args)",

                this.getPluginName() + ":" + this.getExtensionName(),

                this.getCommand());

        ExtensionHelper.execute(this.getExtension(), this.command, args);

    }

    public void execute(Object arg) {

        if (arg instanceof Object[]) {

            execute((Object[]) arg);

            return;

        }

        execute(new Object[]{arg});

    }

    public void execute(Map args) {

        logger.info("{}.execute('{}', Map args)",

                this.getPluginName() + ":" + this.getExtensionName(),

                this.getCommand());

        ExtensionHelper.execute(this.getExtension(), this.command, new Object[]{args});

    }

    public void actionPerformed(ActionEvent arg0) {

        this.execute();

    }

    public String getName() {

        return this.name;

    }

    public String getLabel() {

        return this.text;

    }

    public String getCommand() {

        return this.command;

    }

    public String getIconName() {

        return this.iconName;

    }

    public ImageIcon getIcon() {

        IconTheme iconTheme = PluginServices.getIconTheme();

        return iconTheme.get(this.iconName);

    }

    public String getAccelerator() {

        return this.accelerator;

    }

    public KeyStroke getKeyStroke() {

        if (emptyToNull(this.accelerator) == null) {

            return null;

        }

        return KeyMapping.getKeyStroke(this.accelerator);

    }

    public long getPosition() {

        return this.position;

    }

    public String getTooltip() {

        return this.tip;

    }

    public Object getValue(String key) {

        if (Action.ACTION_COMMAND_KEY.equalsIgnoreCase(key)) {

            return this.command;

        }

        if (Action.LONG_DESCRIPTION.equalsIgnoreCase(key)) {

            return this.tip;

        }

        if (Action.NAME.equalsIgnoreCase(key)) {

            return this.name;

        }

        if (Action.SMALL_ICON.equalsIgnoreCase(key)) {

            return this.getIcon();

        }

        if (Action.ACTION_COMMAND_KEY.equalsIgnoreCase(key)) {

            return this.command;

        }

        if (Action.ACCELERATOR_KEY.equalsIgnoreCase(key)) {

            return this.getKeyStroke();

        }

        if (Action.LARGE_ICON_KEY.equalsIgnoreCase(key)) {

            return this.getIcon();

        }

        if (ActionInfo.ICON_NAME.equalsIgnoreCase(key)) {

            return this.iconName;

        }

        if (Action.SHORT_DESCRIPTION.equalsIgnoreCase(key)) {

            return this.text;

        }

        if (ActionInfo.TOOLTIP.equalsIgnoreCase(key)) {

            return this.text;

        }

        if (ActionInfo.POSITION.equalsIgnoreCase(key)) {

            return this.position;

        }

        if (ActionInfo.REDIRECTIONS.equalsIgnoreCase(key)) {

            return this.redirections;

        }

        if (ActionInfo.REDIRECTION.equalsIgnoreCase(key)) {

            return this.getRedirection();

        }

        if (ActionInfo.EXTENSION.equalsIgnoreCase(key)) {

            return this.getExtension();

        }

        if (ActionInfo.EXTENSION_NAME.equalsIgnoreCase(key)) {

            return this.getExtensionName();

        }

        if (ActionInfo.PLUGIN.equalsIgnoreCase(key)) {

            return this.getPlugin();

        }

        if (ActionInfo.PLUGIN_NAME.equalsIgnoreCase(key)) {

            return this.getPluginName();

        }

        if (ActionInfo.VISIBLE.equalsIgnoreCase(key)) {

            return this.isVisible();

        }

        if (ActionInfo.ACTIVE.equalsIgnoreCase(key)) {

            return this.active;

        }

        if (ActionInfo.ACCELERATOR.equalsIgnoreCase(key)) {

            return this.accelerator;

        }

        return super.getValue(key);

    }

    public void putValue(String key, Object newValue) {

        super.putValue(key, newValue);

        // This class is immutable, only "active" can be changed 

        if (ActionInfo.ACTIVE.equalsIgnoreCase(key)) {

            this.setActive(this.active);

        }

    }

    public String toString() {

        StringBuffer buffer = new StringBuffer();

        buffer.append("ActionInfo {");

        buffer.append("name='").append(this.name).append("', ");

        buffer.append("active='").append(this.active).append("', ");

        buffer.append("label='").append(this.text).append("', ");

        buffer.append("tooltip='").append(this.tip).append("', ");

        buffer.append("actionCommand='").append(this.command).append("', ");

        buffer.append("position='").append(this.position).append("', ");

        buffer.append("icon='").append(this.iconName).append("', ");

        buffer.append("extension='").append(this.getExtensionName())

                .append("', ");

        if (this.redirections != null) {

            buffer.append("redirection=(");

            for (ActionInfo redirection : this.redirections) {

                buffer.append(redirection.getName());

                buffer.append(" ");

            }

            buffer.append("), ");

        } else {

            buffer.append("redirections=( ), ");

        }

        buffer.append("accelerator='").append(this.accelerator);

        buffer.append("' }");

        return buffer.toString();

    }

    public boolean isActive() {

        return this.active;

    }

    public void setActive(boolean active) {

        logger.info("setActive({})", active);

        this.active = active;

    }

}