/// <summary>Collects CSS declarationss.</summary>
/// <param name="rootNode">the root node</param>
/// <param name="resourceResolver">the resource resolver</param>
/// <param name="cssContext">the CSS context</param>
private void CollectCssDeclarations(INode rootNode, ResourceResolver resourceResolver, CssContext cssContext
)
{
cssStyleSheet = new CssStyleSheet();
LinkedList <INode> q = new LinkedList <INode>();
q.Add(rootNode);
while (!q.IsEmpty())
{
INode currentNode = q.JGetFirst();
q.RemoveFirst();
if (currentNode is IElementNode)
{
IElementNode headChildElement = (IElementNode)currentNode;
if (TagConstants.STYLE.Equals(headChildElement.Name()))
{
if (currentNode.ChildNodes().Count > 0 && currentNode.ChildNodes()[0] is IDataNode)
{
String styleData = ((IDataNode)currentNode.ChildNodes()[0]).GetWholeData();
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(styleData);
styleSheet = WrapStyleSheetInMediaQueryIfNecessary(headChildElement, styleSheet);
cssStyleSheet.AppendCssStyleSheet(styleSheet);
}
}
else
{
if (CssUtils.IsStyleSheetLink(headChildElement))
{
String styleSheetUri = headChildElement.GetAttribute(AttributeConstants.HREF);
try {
using (Stream stream = resourceResolver.RetrieveResourceAsInputStream(styleSheetUri)) {
if (stream != null)
{
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(stream, resourceResolver.ResolveAgainstBaseUri(styleSheetUri
).ToExternalForm());
styleSheet = WrapStyleSheetInMediaQueryIfNecessary(headChildElement, styleSheet);
cssStyleSheet.AppendCssStyleSheet(styleSheet);
}
}
}
catch (Exception exc) {
ILog logger = LogManager.GetLogger(typeof(iText.Html2pdf.Css.Resolve.DefaultCssResolver));
logger.Error(iText.Html2pdf.LogMessageConstant.UNABLE_TO_PROCESS_EXTERNAL_CSS_FILE, exc);
}
}
}
}
foreach (INode child in currentNode.ChildNodes())
{
if (child is IElementNode)
{
q.Add(child);
}
}
}
CheckIfPagesCounterMentioned(cssStyleSheet, cssContext);
}
private void CollectCssDeclarations(INode rootNode, ResourceResolver resourceResolver)
{
this.css = new CssStyleSheet();
LinkedList <INode> q = new LinkedList <INode>();
if (rootNode != null)
{
q.Add(rootNode);
}
while (!q.IsEmpty())
{
INode currentNode = q.JRemoveFirst();
if (currentNode is IElementNode)
{
IElementNode headChildElement = (IElementNode)currentNode;
if (SvgConstants.Tags.STYLE.Equals(headChildElement.Name()))
{
//XML parser will parse style tag contents as text nodes
if (!currentNode.ChildNodes().IsEmpty() && (currentNode.ChildNodes()[0] is IDataNode || currentNode.ChildNodes
()[0] is ITextNode))
{
String styleData;
if (currentNode.ChildNodes()[0] is IDataNode)
{
styleData = ((IDataNode)currentNode.ChildNodes()[0]).GetWholeData();
}
else
{
styleData = ((ITextNode)currentNode.ChildNodes()[0]).WholeText();
}
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(styleData);
//TODO (DEVSIX-2263): media query wrap
//styleSheet = wrapStyleSheetInMediaQueryIfNecessary(headChildElement, styleSheet);
this.css.AppendCssStyleSheet(styleSheet);
}
}
else
{
if (SvgCssUtils.IsStyleSheetLink(headChildElement))
{
String styleSheetUri = headChildElement.GetAttribute(SvgConstants.Attributes.HREF);
try {
Stream stream = resourceResolver.RetrieveStyleSheet(styleSheetUri);
byte[] bytes = StreamUtil.InputStreamToArray(stream);
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(new MemoryStream(bytes), resourceResolver.ResolveAgainstBaseUri
(styleSheetUri).ToExternalForm());
this.css.AppendCssStyleSheet(styleSheet);
}
catch (System.IO.IOException exc) {
ILog logger = LogManager.GetLogger(typeof(iText.Svg.Css.Impl.SvgStyleResolver));
logger.Error(iText.StyledXmlParser.LogMessageConstant.UNABLE_TO_PROCESS_EXTERNAL_CSS_FILE, exc);
}
}
}
}
foreach (INode child in currentNode.ChildNodes())
{
if (child is IElementNode)
{
q.Add(child);
}
}
}
}