com.fullmetalgalaxy.client.chat.MAppChat.java Source code

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Here is the source code for com.fullmetalgalaxy.client.chat.MAppChat.java

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/* *********************************************************************
 *
 *  This file is part of Full Metal Galaxy.
 *  http://www.fullmetalgalaxy.com
 *
 *  Full Metal Galaxy 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.
 *
 *  Full Metal Galaxy 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 Full Metal Galaxy.  
 *  If not, see <http://www.gnu.org/licenses/>.
 *
 *  Copyright 2010 to 2015 Vincent Legendre
 *
 * *********************************************************************/

package com.fullmetalgalaxy.client.chat;

import com.fullmetalgalaxy.client.AppMain;
import com.fullmetalgalaxy.client.event.ChannelMessageEventHandler;
import com.fullmetalgalaxy.client.ressources.smiley.SmileyCollection;
import com.fullmetalgalaxy.client.widget.GuiEntryPoint;
import com.fullmetalgalaxy.model.ChatMessage;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;

/**
 * @author vlegendr
 *
 */
public class MAppChat extends GuiEntryPoint implements ChannelMessageEventHandler, ClickHandler, KeyDownHandler {
    public static final String HISTORY_ID = "Chat";

    private Panel m_msgList = new VerticalPanel();
    private Button m_btnOk = new Button("Envoyer");
    private TextBox m_text = new TextBox();
    private ScrollPanel scrollPanel = new ScrollPanel();
    private Panel m_panel = new VerticalPanel();

    public MAppChat() {
        m_panel.setSize("100%", "100%");

        scrollPanel.setHeight("400px");
        m_msgList.setStyleName("msglist");
        scrollPanel.add(m_msgList);
        m_panel.add(scrollPanel);

        Panel hpanel = new HorizontalPanel();
        hpanel.setSize("100%", "100%");
        hpanel.add(m_text);
        m_text.setWidth("100%");
        m_text.addKeyDownHandler(this);
        hpanel.add(m_btnOk);
        m_btnOk.addClickHandler(this);
        m_panel.add(hpanel);

        initWidget(m_panel);
    }

    @Override
    protected void onLoad() {
        super.onLoad();
        onChannelMessage(AppMain.instance().getPresenceRoom());
        AppMain.instance().addChannelMessageEventHandler(ChatMessage.class, this);
    }

    @Override
    protected void onUnload() {
        super.onUnload();
        AppMain.instance().removeChannelMessageEventHandler(ChatMessage.class, this);
    }

    @Override
    public String getHistoryId() {
        return HISTORY_ID;
    }

    @Override
    public void onChannelMessage(Object p_message) {
        if (p_message instanceof ChatMessage) {
            ChatMessage p_msg = (ChatMessage) p_message;
            if (!p_msg.isEmpty()) {
                String text = SafeHtmlUtils.htmlEscape(p_msg.getText());
                text = SmileyCollection.INSTANCE.replace(text);
                text = text.replace("\n", "<br/>");
                HTML label = new HTML("<b>[" + p_msg.getFromPseudo() + "]</b> " + text);
                m_msgList.add(label);
                scrollPanel.ensureVisible(label);
            }
        }
    }

    protected void sendMessage() {
        if (!m_text.getText().isEmpty()) {
            ChatEngine.sendMessage(m_text.getText());
        }
        m_text.setText("");
        setFocus(true);
    }

    @Override
    public void onClick(ClickEvent p_event) {
        sendMessage();
    }

    /**
     * @param p_focused
     * @see com.google.gwt.user.client.ui.FocusWidget#setFocus(boolean)
     */
    public void setFocus(boolean p_focused) {
        m_text.setFocus(p_focused);
    }

    @Override
    public void onKeyDown(KeyDownEvent p_event) {
        if (p_event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
            sendMessage();
        }
    }

}