com.nordstrom.automation.selenium.model.PageComponent Maven / Gradle / Ivy
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package com.nordstrom.automation.selenium.model;
import java.util.Arrays;
import org.openqa.selenium.By;
import org.openqa.selenium.SearchContext;
import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.internal.WrapsElement;
import com.nordstrom.automation.selenium.model.RobustElementFactory.RobustElementWrapper;
import com.nordstrom.automation.selenium.support.Coordinator;
/**
* Extend this class when modeling a browser page component.
*
* This class defines three constructors:
*
* - Create {@link #PageComponent(By, ComponentContainer) page component by locator}.
* - Create {@link #PageComponent(By, int, ComponentContainer) page component by locator and index}.
* - Create {@link #PageComponent(RobustWebElement, ComponentContainer) page component by context element}.
*
* Your page component class can implement any of these constructors, but #3 ({@code page component by context element}
* ) is required if you wish to collect multiple instances in a {@link ComponentList} or {@link ComponentMap}. Also
* note that you must override {@link #hashCode()} and {@link #equals(Object)} if you add significant fields.
*/
public class PageComponent extends ComponentContainer implements WrapsElement {
private Class[] argumentTypes;
private Object[] arguments;
private static final Class[] ARG_TYPES_1 = {By.class, ComponentContainer.class};
private static final Class[] ARG_TYPES_2 = {By.class, Integer.TYPE, ComponentContainer.class};
/**
* Constructor for page component by element locator
*
* @param locator component context element locator
* @param parent component parent container
*/
public PageComponent(By locator, ComponentContainer parent) {
this(locator, -1, parent);
argumentTypes = ARG_TYPES_1;
arguments = new Object[] {locator, parent};
}
/**
* Constructor for page component by element locator and index
*
* @param locator component context element locator
* @param index component context index (-1 = non-indexed)
* @param parent component parent container
*/
public PageComponent(By locator, int index, ComponentContainer parent) {
this((RobustWebElement) RobustElementWrapper.getElement(parent, locator, index), parent);
argumentTypes = ARG_TYPES_2;
arguments = new Object[] {locator, index, parent};
}
/**
* Constructor for page component by context element
*
* @param element component context element
* @param parent component parent
*/
public PageComponent(RobustWebElement element, ComponentContainer parent) {
super(element, parent);
argumentTypes = ComponentContainer.getCollectibleArgs();
arguments = new Object[] {element, parent};
}
@Override
protected SearchContext switchToContext() {
return this;
}
@Override
public SearchContext getWrappedContext() {
return ((RobustWebElement) context).getWrappedContext();
}
@Override
public SearchContext refreshContext(long expiration) {
// if this context is past the expiration
if (expiration >= acquiredAt()) {
// refresh context ancestry
parent.refreshContext(expiration);
// refresh context element
((RobustWebElement) context).refreshContext(expiration);
}
return this;
}
@Override
public long acquiredAt() {
return ((RobustWebElement) context).acquiredAt();
}
@Override
public Class[] getArgumentTypes() {
return Arrays.copyOf(argumentTypes, argumentTypes.length);
}
@Override
public Object[] getArguments() {
return Arrays.copyOf(arguments, arguments.length);
}
@Override
public WebElement getWrappedElement() {
return (WebElement) context;
}
/**
* Get the viewport element for this component.
*
* NOTE: The default implementation of this method returns the component's context element. If the context
* element is always hidden, override this method to return the component's largest visible container element.
*
* @return 'true' if component is visible; otherwise 'false'
*/
public RobustWebElement getViewport() {
return (RobustWebElement) context;
}
/**
* Determine if this component is visible
*
* @return 'true' if component is visible; otherwise 'false'
*/
public boolean isDisplayed() {
RobustWebElement element = getViewport();
return (element.hasReference()) ? element.isDisplayed() : false;
}
/**
* Determine if this component is absent or hidden
*
* @return 'true' if component is absent or hidden; otherwise 'false'
*/
public boolean isInvisible() {
RobustWebElement element = getViewport();
if (element.hasReference()) {
try {
return ! element.getWrappedElement().isDisplayed();
} catch (StaleElementReferenceException e) {
getLogger().debug("Container element no longer exists", e);
}
}
return true;
}
/**
* Returns a 'wait' proxy that determines if this page component is visible
*
* @return page component if visible; otherwise 'null'
*/
public static Coordinator componentIsVisible() {
return new Coordinator() {
@Override
public PageComponent apply(SearchContext context) {
PageComponent component = verifyContext(context);
return (component.isDisplayed()) ? component : null;
}
@Override
public String toString() {
return "page component to be visible";
}
};
}
/**
* Returns a 'wait' proxy that determines if this page component is hidden
*
* @return page component if hidden; otherwise 'null'
*/
public static Coordinator componentIsHidden() {
return new Coordinator() {
@Override
public PageComponent apply(SearchContext context) {
PageComponent component = verifyContext(context);
return (component.isInvisible()) ? component : null;
}
@Override
public String toString() {
return "page component to be absent or hidden";
}
};
}
/**
* Determine if the specified search context is a page component
*
* @param context search context in question
* @return search context as page component (throws an exception otherwise)
* @throws UnsupportedOperationException The specified search context isn't a page component
*/
private static PageComponent verifyContext(SearchContext context) {
if (context instanceof PageComponent) {
return (PageComponent) context;
}
throw new UnsupportedOperationException("Wait object search context is not a page component");
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(argumentTypes);
result = prime * result + Arrays.hashCode(arguments);
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (!super.equals(obj))
return false;
if (getClass() != obj.getClass())
return false;
PageComponent other = (PageComponent) obj;
if (!Arrays.equals(argumentTypes, other.argumentTypes))
return false;
if (!Arrays.equals(arguments, other.arguments))
return false;
return true;
}
}