ilarkesto.gwt.client.desktop.AGwtNavigator.java Source code

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Here is the source code for ilarkesto.gwt.client.desktop.AGwtNavigator.java

Source

/*
 * 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.desktop;

import ilarkesto.core.base.Str;
import ilarkesto.core.logging.Log;
import ilarkesto.gwt.client.AGwtApplication;
import ilarkesto.gwt.client.Gwt;

import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;

public abstract class AGwtNavigator implements ValueChangeHandler<String> {

    protected final Log log = Log.get(getClass());

    private boolean disabled;

    @Override
    public void onValueChange(ValueChangeEvent<String> event) {
        if (isDisabled())
            return;
        String token = event.getValue();
        log.info("History token changed:", token);
        handleToken(token);
    }

    public void handleToken(String token) {
        if (isDisabled())
            return;
        if (Str.isBlank(token))
            token = "Home";
        int activityNameEndIdx = token.indexOf(Gwt.HISTORY_TOKEN_SEPARATOR);
        String activityParamsToken = null;
        String activityName;
        if (activityNameEndIdx < 0) {
            activityName = token;
        } else {
            activityName = token.substring(0, activityNameEndIdx);
            activityParamsToken = token.substring(activityNameEndIdx + 1);
        }
        startActivity(activityName, activityParamsToken);
    }

    private void startActivity(String activityName, String activityParamsToken) {
        log.info("startActivity()", activityName, activityParamsToken);
        ActivityParameters parameters = ActivityParameters.parseToken(activityParamsToken);

        AActivity activity = AGwtApplication.get().getActivityCatalog().instantiateActivity(activityName);

        activity.startAsRoot(parameters);
    }

    public void disable() {
        disabled = true;
    }

    public boolean isDisabled() {
        return disabled;
    }
}