DMDirc-Plugins/ui_swing/src/main/java/com/dmdirc/addons/ui_swing/SimpleActiveFrameManager.java

/*
 * Copyright (c) 2006-2017 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
 * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.dmdirc.addons.ui_swing;

import com.dmdirc.addons.ui_swing.components.frames.TextFrame;
import com.dmdirc.addons.ui_swing.events.SwingActiveWindowChangeRequestEvent;
import com.dmdirc.addons.ui_swing.interfaces.ActiveFrameManager;

import java.util.Optional;

import javax.inject.Inject;

import net.engio.mbassy.listener.Handler;

/**
 * Simple active frame manager used only to keep track of the active frame.
 */
public class SimpleActiveFrameManager implements ActiveFrameManager {

    private Optional<TextFrame> window;

    @Inject
    public SimpleActiveFrameManager() {
        window = Optional.empty();
    }

    @Handler
    public void setActiveFrame(final SwingActiveWindowChangeRequestEvent event) {
        this.window = event.getWindow();
    }

    @Override
    public Optional<TextFrame> getActiveFrame() {
        return window;
    }
}