ilarkesto.gwt.client.integration.ace.AceEditor.java Source code

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Here is the source code for ilarkesto.gwt.client.integration.ace.AceEditor.java

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/*
 * Copyright 2011 Witoslaw Koczewsi <wi@koczewski.de>
 *
 * This program 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.
 *
 * 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 Affero General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License along with this program. If not,
 * see <http://www.gnu.org/licenses/>.
 */
package ilarkesto.gwt.client.integration.ace;

import ilarkesto.core.logging.Log;

import com.google.gwt.core.client.Callback;
import com.google.gwt.core.client.ScriptInjector;
import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.logical.shared.AttachEvent;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;

public class AceEditor implements IsWidget {

    private static final Log log = Log.get(AceEditor.class);

    private static int lastId = 0;
    private static boolean loaded = false;

    private String id;
    private SimplePanel div;

    public AceEditor() {
        id = "aceEditor_" + (++lastId);
    }

    @Override
    public Widget asWidget() {
        if (div == null) {
            div = new SimplePanel();
            div.getElement().setId(id);
            Style style = div.getElement().getStyle();
            // style.setPosition(Position.ABSOLUTE);
            // style.setTop(0, Unit.PX);
            // style.setRight(0, Unit.PX);
            // style.setBottom(0, Unit.PX);
            // style.setLeft(0, Unit.PX);
            style.setWidth(800, Unit.PX);
            // style.setHeight(400, Unit.PX);
            style.setBackgroundColor("yellow");
            div.addAttachHandler(new AttachEvent.Handler() {

                @Override
                public void onAttachOrDetach(AttachEvent event) {
                    if (event.isAttached()) {
                        activate();
                    }
                }
            });
        }
        return div;
    }

    private void activate() {
        if (loaded) {
            new Timer() {

                @Override
                public void run() {
                    activateAce(div.getElement());
                }

            }.schedule(2000);
            return;
        }
        ScriptInjector.fromUrl("js/ace/ace.js").setCallback(new Callback<Void, Exception>() {

            @Override
            public void onFailure(Exception ex) {
                throw new RuntimeException("Loading ACE failed.", ex);
            }

            @Override
            public void onSuccess(Void result) {
                loaded = true;
                activate();
            }
        }).inject();
    }

    private static native void activateAce(Element element)
    /*-{
    console.log("Activating ACE:",element);
    var editor = ace.edit(element);
    editor.setTheme("ace/theme/monokai");
    editor.getSession().setMode("ace/mode/javascript");
    editor.resize();
    }-*/;

}