com.gargoylesoftware.css.dom.CSSStyleSheetListImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2019-2020 Ronald Brill.
*
* 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.css.dom;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.gargoylesoftware.css.util.LangUtils;
/**
* Implementation of StyleSheetList.
*
* @author Ronald Brill
*/
public class CSSStyleSheetListImpl {
private List cssStyleSheets_;
/**
* @return the list of style sheets
*/
public List getCSSStyleSheets() {
if (cssStyleSheets_ == null) {
cssStyleSheets_ = new ArrayList<>();
}
return cssStyleSheets_;
}
/**
* @return the number of style sheets
*/
public int getLength() {
return getCSSStyleSheets().size();
}
/**
* Adds a CSSStyleSheet.
*
* @param cssStyleSheet the CSSStyleSheet
*/
public void add(final CSSStyleSheetImpl cssStyleSheet) {
getCSSStyleSheets().add(cssStyleSheet);
}
// end StyleSheetList
/**
* Merges all StyleSheets in this list into one.
*
* @return the new (merged) StyleSheet
*/
public CSSStyleSheetImpl merge() {
final CSSStyleSheetImpl merged = new CSSStyleSheetImpl();
final CSSRuleListImpl cssRuleList = new CSSRuleListImpl();
final Iterator it = getCSSStyleSheets().iterator();
while (it.hasNext()) {
final CSSStyleSheetImpl cssStyleSheet = it.next();
final CSSMediaRuleImpl cssMediaRule = new CSSMediaRuleImpl(merged, null, cssStyleSheet.getMedia());
cssMediaRule.setRuleList(cssStyleSheet.getCssRules());
cssRuleList.add(cssMediaRule);
}
merged.setCssRules(cssRuleList);
merged.setMediaText("all");
return merged;
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof CSSStyleSheetListImpl)) {
return false;
}
final CSSStyleSheetListImpl ssl = (CSSStyleSheetListImpl) obj;
return equalsStyleSheets(ssl);
}
private boolean equalsStyleSheets(final CSSStyleSheetListImpl ssl) {
if ((ssl == null) || (getLength() != ssl.getLength())) {
return false;
}
int i = 0;
for (CSSStyleSheetImpl styleSheet : cssStyleSheets_) {
final CSSStyleSheetImpl styleSheet2 = ssl.cssStyleSheets_.get(i);
if (!LangUtils.equals(styleSheet, styleSheet2)) {
return false;
}
i++;
}
return true;
}
@Override
public int hashCode() {
int hash = LangUtils.HASH_SEED;
hash = LangUtils.hashCode(hash, cssStyleSheets_);
return hash;
}
}