/*
 * This file is part of Bitsquare.
 *
 * Bitsquare is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * Bitsquare 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 Affero General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
 */

package io.bitsquare.gui;

import java.net.URL;

import java.util.ResourceBundle;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * If caching is used for loader we use the CachedViewController for turning the controller into sleep mode if not
 * active and awake it at reactivation.
 */
public abstract class CachedViewController extends ViewController {
    private static final Logger log = LoggerFactory.getLogger(CachedViewController.class);

    public CachedViewController() {
    }
    
    /**
     * Get called form GUI framework when the UI is ready.
     * In caching controllers the initialize is only used for static UI setup.
     * The activate() method is called to start resources like.
     *
     * @param url
     * @param rb
     */
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        log.trace("Lifecycle: initialize " + this.getClass().getSimpleName());
        root.sceneProperty().addListener((ov, oldValue, newValue) -> {
            // we got removed from the scene
            // lets terminate
            log.trace("Lifecycle: sceneProperty changed: " + this.getClass().getSimpleName() + " / oldValue=" +
                    oldValue + " / newValue=" + newValue);
            if (oldValue == null && newValue != null) activate();
            else if (oldValue != null && newValue == null) deactivate();
        });
    }

    /**
     * In caching controllers the terminate calls the deactivate method.
     */
    @Override
    public void terminate() {
        log.trace("Lifecycle: terminate " + this.getClass().getSimpleName());
        super.terminate();

        deactivate();
    }

    /**
     * Used for deactivating resources (removing listeners, stopping timers or animations,...)
     */
    public void deactivate() {
        log.trace("Lifecycle: deactivate " + this.getClass().getSimpleName());
        if (childController instanceof CachedViewController) ((CachedViewController) childController).deactivate();
    }

    /**
     * Used to activate resources (adding listeners, starting timers or animations,...)
     */
    public void activate() {
        log.trace("Lifecycle: activate " + this.getClass().getSimpleName());
        if (childController instanceof CachedViewController) ((CachedViewController) childController).activate();
    }


}

/*
 * This file is part of Bitsquare.
 *
 * Bitsquare is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * Bitsquare 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 Affero General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
 */

package io.bitsquare.gui;

import java.net.URL;

import java.util.ResourceBundle;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * If caching is used for loader we use the CachedViewController for turning the controller into sleep mode if not
 * active and awake it at reactivation.
 */
public abstract class CachedViewController extends ViewController {
    private static final Logger log = LoggerFactory.getLogger(CachedViewController.class);

    public CachedViewController() {
    }

    /**
     * Get called form GUI framework when the UI is ready.
     * In caching controllers the initialize is only used for static UI setup.
     * The activate() method is called to start resources like.
     *
     * @param url
     * @param rb
     */
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        log.trace("Lifecycle: initialize " + this.getClass().getSimpleName());
        root.sceneProperty().addListener((ov, oldValue, newValue) -> {
            // we got removed from the scene
            // lets terminate
            log.trace("Lifecycle: sceneProperty changed: " + this.getClass().getSimpleName() + " / oldValue=" +
                    oldValue + " / newValue=" + newValue);
            if (oldValue == null && newValue != null) activate();
            else if (oldValue != null && newValue == null) deactivate();
        });
    }

    /**
     * In caching controllers the terminate calls the deactivate method.
     */
    @Override
    public void terminate() {
        log.trace("Lifecycle: terminate " + this.getClass().getSimpleName());
        super.terminate();

        deactivate();
    }

    /**
     * Used for deactivating resources (removing listeners, stopping timers or animations,...)
     */
    public void deactivate() {
        log.trace("Lifecycle: deactivate " + this.getClass().getSimpleName());
        if (childController instanceof CachedViewController) ((CachedViewController) childController).deactivate();
    }

    /**
     * Used to activate resources (adding listeners, starting timers or animations,...)
     */
    public void activate() {
        log.trace("Lifecycle: activate " + this.getClass().getSimpleName());
        if (childController instanceof CachedViewController) ((CachedViewController) childController).activate();
    }


}

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