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/**
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.arquillian.graphene.enricher;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.jboss.arquillian.graphene.GrapheneElement;
import org.jboss.arquillian.graphene.GrapheneElementImpl;
import org.jboss.arquillian.graphene.context.GrapheneContext;
import org.jboss.arquillian.graphene.findby.ByJQuery;
import org.jboss.arquillian.graphene.intercept.InterceptorBuilder;
import org.jboss.arquillian.graphene.proxy.GrapheneContextualHandler;
import org.jboss.arquillian.graphene.proxy.GrapheneProxy;
import org.jboss.arquillian.graphene.proxy.GrapheneProxyInstance;
import org.openqa.selenium.By;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.SearchContext;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.WrapsElement;
import org.openqa.selenium.interactions.Locatable;
import org.openqa.selenium.support.ByIdOrName;
/**
* @author Jan Papousek
*/
public final class WebElementUtils {
private static final Logger LOGGER = Logger.getLogger(WebElementUtils.class.getName());
private static final String EMPTY_FIND_BY_WARNING = " Be aware of the fact that fields anotated with empty "
+ "@FindBy were located by default strategy, which is ByIdOrName with field name as locator! ";
private static final Class[] INTERFACES_PROXY_SHOULD_IMPLEMENT = {Locatable.class,
WrapsElement.class, GrapheneElement.class};
private WebElementUtils() {
}
public static WebElement findElement(GrapheneContext context, final By by, final GrapheneProxy.FutureTarget searchContextFuture) {
// Here the web element has to be found to ensure that SearchContext throws
// NoSuchElementException if there is no element with the given By locator.
dropProxyAndFindElement(by, (SearchContext) searchContextFuture.getTarget());
return findElement(context, new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
return dropProxyAndFindElement(by, (SearchContext) searchContextFuture.getTarget());
}
});
}
public static List findElementsLazily(final GrapheneContext context, final By by, final GrapheneProxy.FutureTarget searchContextFuture) {
List elements = GrapheneProxy.getProxyForHandler(GrapheneContextualHandler.forFuture(context, new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
List result = new ArrayList();
List elements = dropProxyAndFindElements(by, (SearchContext) searchContextFuture.getTarget());
if ((by instanceof ByIdOrName) && (elements.isEmpty())) {
LOGGER.log(Level.WARNING, EMPTY_FIND_BY_WARNING);
}
for (int i = 0; i < elements.size(); i++) {
WebElement foundElement = findElementLazily(context, by, searchContextFuture, i);
if (foundElement != null) {
result.add(foundElement);
}
}
return result;
}
}), List.class);
GrapheneProxyInstance proxy = (GrapheneProxyInstance) elements;
proxy.registerInterceptor(new StaleElementInterceptor());
return elements;
}
public static WebElement findElementLazily(GrapheneContext context, final By by, final GrapheneProxy.FutureTarget searchContextFuture, final int indexInList) {
return findElement(context, new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
List elements = dropProxyAndFindElements(by, (SearchContext) searchContextFuture.getTarget());
if (elements.size() > indexInList) {
return elements.get(indexInList);
}
return null;
}
});
}
public static WebElement findElementLazily(final By by, final SearchContext searchContext, final int indexInList) {
return findElement(getContext(searchContext), new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
List elements = dropProxyAndFindElements(by, searchContext);
if (elements.size() > indexInList) {
return elements.get(indexInList);
}
return null;
}
});
}
public static WebElement findElementLazily(final By by, final SearchContext searchContext) {
return findElement(getContext(searchContext), new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
try {
return dropProxyAndFindElement(by, searchContext);
} catch (NoSuchElementException ex) {
throw new NoSuchElementException((by instanceof ByIdOrName ? EMPTY_FIND_BY_WARNING : "") + ex.getMessage(),
ex);
}
}
});
}
public static List findElementsLazily(final By by, final SearchContext searchContext) {
return findElementsLazily(getContext(searchContext), by, new GrapheneProxy.FutureTarget() {
@Override
public Object getTarget() {
return searchContext;
}
});
}
protected static WebElement findElement(GrapheneContext context, final GrapheneProxy.FutureTarget target) {
final WebElement element = GrapheneProxy.getProxyForFutureTarget(context, target, WebElement.class, INTERFACES_PROXY_SHOULD_IMPLEMENT);
final GrapheneProxyInstance elementProxy = (GrapheneProxyInstance) element;
InterceptorBuilder b = new InterceptorBuilder();
b.interceptInvocation(WrapsElement.class, new WrapsElementInterceptor(elementProxy)).getWrappedElement();
elementProxy.registerInterceptor(b.build());
elementProxy.registerInterceptor(new StaleElementInterceptor());
elementProxy.registerInterceptor(new SearchContextInterceptor());
return element;
}
protected static WebElement dropProxyAndFindElement(By by, SearchContext searchContext) {
WebElement result;
if (searchContext instanceof GrapheneProxyInstance) {
SearchContext unwrapped = ((GrapheneProxyInstance) searchContext).unwrap();
result = unwrapped.findElement(by);
} else {
result = searchContext.findElement(by);
}
return new GrapheneElementImpl(result);
}
protected static List dropProxyAndFindElements(By by, SearchContext searchContext) {
List webElements;
if (searchContext instanceof GrapheneProxyInstance) {
if (by instanceof ByJQuery) {
webElements = by.findElements(searchContext);
} else {
webElements = ((SearchContext) ((GrapheneProxyInstance) searchContext).unwrap()).findElements(by);
}
} else {
webElements = searchContext.findElements(by);
}
List result = new ArrayList(webElements.size());
for (WebElement webElement : webElements) {
result.add(new GrapheneElementImpl(webElement));
}
return result;
}
protected static GrapheneContext getContext(Object object) {
if (!GrapheneProxy.isProxyInstance(object)) {
throw new IllegalArgumentException("The parameter [object] has to be instance of " + GrapheneProxyInstance.class.getName() + ", but it is not. The given object is " + object + ".");
}
return ((GrapheneProxyInstance) object).getGrapheneContext();
}
}
