/*
* Copyright (c) 2002-2010 Gargoyle Software Inc.
*
* 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 com.gargoylesoftware.htmlunit.html;
import static com.gargoylesoftware.htmlunit.protocol.javascript.JavaScriptURLConnection.JAVASCRIPT_PREFIX;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;
import org.apache.commons.lang.StringUtils;
import com.gargoylesoftware.htmlunit.SgmlPage;
import com.gargoylesoftware.htmlunit.TextUtil;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebRequestSettings;
import com.gargoylesoftware.htmlunit.WebWindow;
/**
* Wrapper for the HTML element "area".
*
* @version $Revision: 5301 $
* @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
* @author David K. Taylor
* @author <a href="mailto:cse@dynabean.de">Christian Sell</a>
* @author Marc Guillemot
* @author Ahmed Ashour
*/
public class HtmlArea extends HtmlElement {
private static final long serialVersionUID = 8933911141016200386L;
/** The HTML tag represented by this element. */
public static final String TAG_NAME = "area";
/**
* Creates a new instance.
*
* @param namespaceURI the URI that identifies an XML namespace
* @param qualifiedName the qualified name of the element type to instantiate
* @param page the page that contains this element
* @param attributes the initial attributes
*/
HtmlArea(final String namespaceURI, final String qualifiedName, final SgmlPage page,
final Map<String, DomAttr> attributes) {
super(namespaceURI, qualifiedName, page, attributes);
}
/**
* {@inheritDoc}
*/
@Override
protected void doClickAction() throws IOException {
final HtmlPage enclosingPage = (HtmlPage) getPage();
final WebClient webClient = enclosingPage.getWebClient();
final String href = getHrefAttribute();
if (href != null && href.length() > 0) {
final HtmlPage page = (HtmlPage) getPage();
if (TextUtil.startsWithIgnoreCase(href, JAVASCRIPT_PREFIX)) {
page.executeJavaScriptIfPossible(
href, "javascript url", getStartLineNumber());
return;
}
final URL url;
try {
url = enclosingPage.getFullyQualifiedUrl(getHrefAttribute());
}
catch (final MalformedURLException e) {
throw new IllegalStateException(
"Not a valid url: " + getHrefAttribute());
}
final WebRequestSettings settings = new WebRequestSettings(url);
final WebWindow webWindow = enclosingPage.getEnclosingWindow();
webClient.getPage(
webWindow,
enclosingPage.getResolvedTarget(getTargetAttribute()),
settings);
}
}
/**
* Returns the value of the attribute "shape". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "shape" or an empty string if that attribute isn't defined
*/
public final String getShapeAttribute() {
return getAttribute("shape");
}
/**
* Returns the value of the attribute "coords". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "coords" or an empty string if that attribute isn't defined
*/
public final String getCoordsAttribute() {
return getAttribute("coords");
}
/**
* Returns the value of the attribute "href". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "href" or an empty string if that attribute isn't defined
*/
public final String getHrefAttribute() {
return getAttribute("href");
}
/**
* Returns the value of the attribute "nohref". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "nohref" or an empty string if that attribute isn't defined
*/
public final String getNoHrefAttribute() {
return getAttribute("nohref");
}
/**
* Returns the value of the attribute "alt". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "alt" or an empty string if that attribute isn't defined
*/
public final String getAltAttribute() {
return getAttribute("alt");
}
/**
* Returns the value of the attribute "tabindex". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "tabindex" or an empty string if that attribute isn't defined
*/
public final String getTabIndexAttribute() {
return getAttribute("tabindex");
}
/**
* Returns the value of the attribute "accesskey". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "accesskey" or an empty string if that attribute isn't defined
*/
public final String getAccessKeyAttribute() {
return getAttribute("accesskey");
}
/**
* Returns the value of the attribute "onfocus". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "onfocus" or an empty string if that attribute isn't defined
*/
public final String getOnFocusAttribute() {
return getAttribute("onfocus");
}
/**
* Returns the value of the attribute "onblur". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "onblur" or an empty string if that attribute isn't defined
*/
public final String getOnBlurAttribute() {
return getAttribute("onblur");
}
/**
* Returns the value of the attribute "target". Refer to the
* <a href='http://www.w3.org/TR/html401/'>HTML 4.01</a>
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "target" or an empty string if that attribute isn't defined
*/
public final String getTargetAttribute() {
return getAttribute("target");
}
/**
* Indicates if this area contains the specified point.
* @param x the x coordinate of the point
* @param y the y coordinate of the point
* @return <code>true</code> if the point is contained in this area
*/
boolean containsPoint(final int x, final int y) {
final String shape = StringUtils.defaultIfEmpty(getShapeAttribute(), "rect").toLowerCase();
if ("default".equals(shape) && getCoordsAttribute() != null) {
return true;
}
else if ("rect".equals(shape) && getCoordsAttribute() != null) {
final String[] coords = getCoordsAttribute().split(",");
final double leftX = Double.parseDouble(coords[0].trim());
final double topY = Double.parseDouble(coords[1].trim());
final double rightX = Double.parseDouble(coords[2].trim());
final double bottomY = Double.parseDouble(coords[3].trim());
final Rectangle2D rectangle = new Rectangle2D.Double(leftX, topY,
rightX - leftX + 1, bottomY - topY + 1);
if (rectangle.contains(x, y)) {
return true;
}
}
else if ("circle".equals(shape) && getCoordsAttribute() != null) {
final String[] coords = getCoordsAttribute().split(",");
final double centerX = Double.parseDouble(coords[0].trim());
final double centerY = Double.parseDouble(coords[1].trim());
final String radiusString = coords[2].trim();
final int radius;
try {
radius = Integer.parseInt(radiusString);
}
catch (final NumberFormatException nfe) {
throw new NumberFormatException("Circle radius of " + radiusString + " is not yet implemented.");
}
final Ellipse2D ellipse = new Ellipse2D.Double(centerX - radius / 2, centerY - radius / 2,
radius, radius);
if (ellipse.contains(x, y)) {
return true;
}
}
else if ("poly".equals(shape) && getCoordsAttribute() != null) {
final String[] coords = getCoordsAttribute().split(",");
final GeneralPath path = new GeneralPath();
for (int i = 0; i + 1 < coords.length; i += 2) {
if (i == 0) {
path.moveTo(Float.parseFloat(coords[i]), Float.parseFloat(coords[i + 1]));
}
else {
path.lineTo(Float.parseFloat(coords[i]), Float.parseFloat(coords[i + 1]));
}
}
path.closePath();
if (path.contains(x, y)) {
return true;
}
}
return false;
}
}