org.htmlunit.javascript.host.css.StyleSheet Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of xlt Show documentation
XLT (Xceptance LoadTest) is an extensive load and performance test tool developed and maintained by Xceptance.
The newest version!
/*
 * Copyright (c) 2002-2024 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
 * https://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 org.htmlunit.javascript.host.css;

import static org.htmlunit.BrowserVersionFeatures.STYLESHEET_HREF_EMPTY_IS_NULL;
import static org.htmlunit.javascript.configuration.SupportedBrowser.CHROME;
import static org.htmlunit.javascript.configuration.SupportedBrowser.EDGE;
import static org.htmlunit.javascript.configuration.SupportedBrowser.FF;
import static org.htmlunit.javascript.configuration.SupportedBrowser.FF_ESR;

import java.net.MalformedURLException;
import java.net.URL;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.htmlunit.html.DomNode;
import org.htmlunit.html.HtmlLink;
import org.htmlunit.html.HtmlPage;
import org.htmlunit.html.HtmlStyle;
import org.htmlunit.javascript.HtmlUnitScriptable;
import org.htmlunit.javascript.configuration.JsxClass;
import org.htmlunit.javascript.configuration.JsxConstructor;
import org.htmlunit.javascript.configuration.JsxGetter;
import org.htmlunit.javascript.host.html.HTMLElement;

/**
 * A JavaScript object for {@code StyleSheet}.
 *
 * @author Ahmed Ashour
 * @author Ronald Brill
 */
@JsxClass
public class StyleSheet extends HtmlUnitScriptable {

    private static final Log LOG = LogFactory.getLog(StyleSheet.class);

    /** The HTML element which owns this stylesheet. */
    private final HTMLElement ownerNode_;

    /**
     * Default constructor.
     */
    public StyleSheet() {
        ownerNode_ = null;
    }

    /**
     * JavaScript constructor.
     */
    @JsxConstructor({CHROME, EDGE, FF, FF_ESR})
    public void jsConstructor() {
    }

    public StyleSheet(final HTMLElement ownerNode) {
        ownerNode_ = ownerNode;
    }

    /**
     * Returns the owner node.
     * @return the owner node
     */
    @JsxGetter
    public HTMLElement getOwnerNode() {
        return ownerNode_;
    }

    /**
     * Returns the URL of the stylesheet.
     * @return the URL of the stylesheet
     */
    @JsxGetter
    public String getHref() {
        if (ownerNode_ != null) {
            final DomNode node = ownerNode_.getDomNodeOrDie();
            if (node instanceof HtmlStyle) {
                return null;
            }
            if (node instanceof HtmlLink) {
                // 
                final HtmlLink link = (HtmlLink) node;
                final String href = link.getHrefAttribute();
                if ("".equals(href) && getBrowserVersion().hasFeature(STYLESHEET_HREF_EMPTY_IS_NULL)) {
                    return null;
                }
                // Expand relative URLs.
                try {
                    final HtmlPage page = (HtmlPage) link.getPage();
                    final URL url = page.getFullyQualifiedUrl(href);
                    return url.toExternalForm();
                }
                catch (final MalformedURLException e) {
                    // Log the error and fall through to the return values below.
                    LOG.warn(e.getMessage(), e);
                }
            }
        }

        return getUri();
    }

    /**
     * Returns this stylesheet's URI (used to resolved contained @import rules).
     * For inline styles this is the page uri.
     * @return this stylesheet's URI (used to resolved contained @import rules)
     */
    public String getUri() {
        return null;
    }
}