/*
 * Copyright 2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package geb.navigator.factory

import geb.Browser
import geb.navigator.EmptyNavigator
import geb.navigator.Navigator
import geb.navigator.NonEmptyNavigator
import org.openqa.selenium.WebElement

/**
 * Default implementation of {@link geb.navigator.factory.InnerNavigatorFactory}.
 *
 * Uses {@link NonEmptyNavigator} and {@link EmptyNavigator}.
 */
class DefaultInnerNavigatorFactory implements InnerNavigatorFactory {

    /**
     * If {@code elements != null && elements.size() > 0} a {@link NonEmptyNavigator is returned, otherwise {@link EmptyNavigator}.

     * @param browser The browse to associate with the navigator
     * @param elements The elements to back the navigator
     * @return The newly created navigator
     */
    Navigator createNavigator(Browser browser, List<WebElement> elements) {
        elements ? new NonEmptyNavigator(browser, elements) : new EmptyNavigator(browser)
    }

}
