net.java.textilej.parser.builder.HtmlDocumentBuilder Maven / Gradle / Ivy
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package net.java.textilej.parser.builder;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.Map.Entry;
import net.java.textilej.parser.Attributes;
import net.java.textilej.parser.ImageAttributes;
import net.java.textilej.parser.LinkAttributes;
import net.java.textilej.parser.ListAttributes;
import net.java.textilej.parser.QuoteAttributes;
import net.java.textilej.parser.TableAttributes;
import net.java.textilej.parser.TableCellAttributes;
import net.java.textilej.parser.TableRowAttributes;
import net.java.textilej.parser.ImageAttributes.Align;
import net.java.textilej.util.FormattingXMLStreamWriter;
import net.java.textilej.util.XmlStreamWriter;
/**
* A builder that produces XHTML output.
*
* @author dgreen
*/
public class HtmlDocumentBuilder extends AbstractXmlDocumentBuilder {
private static final Map spanTypeToElementName = new HashMap();
static {
spanTypeToElementName.put(SpanType.BOLD,"b");
spanTypeToElementName.put(SpanType.CITATION,"cite");
spanTypeToElementName.put(SpanType.ITALIC,"i");
spanTypeToElementName.put(SpanType.EMPHASIS,"em");
spanTypeToElementName.put(SpanType.STRONG,"strong");
spanTypeToElementName.put(SpanType.DELETED,"del");
spanTypeToElementName.put(SpanType.INSERTED,"ins");
spanTypeToElementName.put(SpanType.UNDERLINED,"u");
spanTypeToElementName.put(SpanType.SUPERSCRIPT,"sup");
spanTypeToElementName.put(SpanType.SUBSCRIPT,"sub");
spanTypeToElementName.put(SpanType.SPAN,"span");
spanTypeToElementName.put(SpanType.CODE,"code");
spanTypeToElementName.put(SpanType.MONOSPACE,"tt");
}
private static final Map blockTypeToElementInfo = new HashMap();
static {
blockTypeToElementInfo.put(BlockType.BULLETED_LIST,new ElementInfo("ul"));
blockTypeToElementInfo.put(BlockType.CODE,new ElementInfo("code" ));
blockTypeToElementInfo.put(BlockType.FOOTNOTE,new ElementInfo("footnote" ));
blockTypeToElementInfo.put(BlockType.LIST_ITEM,new ElementInfo("li"));
blockTypeToElementInfo.put(BlockType.NUMERIC_LIST,new ElementInfo("ol"));
blockTypeToElementInfo.put(BlockType.DEFINITION_LIST,new ElementInfo("dl"));
blockTypeToElementInfo.put(BlockType.DEFINITION_TERM,new ElementInfo("dt"));
blockTypeToElementInfo.put(BlockType.DEFINITION_ITEM,new ElementInfo("dd"));
blockTypeToElementInfo.put(BlockType.PARAGRAPH,new ElementInfo("p" ));
blockTypeToElementInfo.put(BlockType.PREFORMATTED,new ElementInfo("pre" ));
blockTypeToElementInfo.put(BlockType.QUOTE,new ElementInfo("blockquote" ));
blockTypeToElementInfo.put(BlockType.TABLE,new ElementInfo("table" ));
blockTypeToElementInfo.put(BlockType.TABLE_CELL_HEADER,new ElementInfo("th" ));
blockTypeToElementInfo.put(BlockType.TABLE_CELL_NORMAL,new ElementInfo("td" ));
blockTypeToElementInfo.put(BlockType.TABLE_ROW,new ElementInfo("tr"));
blockTypeToElementInfo.put(BlockType.TIP,new ElementInfo("div","tip","border: 1px solid #090;background-color: #dfd;margin: 20px;padding: 0px 6px 0px 6px;"));
blockTypeToElementInfo.put(BlockType.WARNING,new ElementInfo("div","warning","border: 1px solid #c00;background-color: #fcc;margin: 20px;padding: 0px 6px 0px 6px;"));
blockTypeToElementInfo.put(BlockType.INFORMATION,new ElementInfo("div","info","border: 1px solid #3c78b5;background-color: #D8E4F1;margin: 20px;padding: 0px 6px 0px 6px;"));
blockTypeToElementInfo.put(BlockType.NOTE,new ElementInfo("div","note","border: 1px solid #F0C000;background-color: #FFFFCE;margin: 20px;padding: 0px 6px 0px 6px;"));
blockTypeToElementInfo.put(BlockType.PANEL,new ElementInfo("div","panel","border: 1px solid #ccc;background-color: #FFFFCE;margin: 10px;padding: 0px 6px 0px 6px;"));
}
private String htmlNsUri = "http://www.w3.org/1999/xhtml";
private String htmlDtd = "";
private boolean xhtmlStrict = false;
private boolean emitAsDocument = true;
private boolean emitDtd = false;
private String title;
private String defaultAbsoluteLinkTarget;
private List stylesheets = null;
private boolean useInlineStyles = true;
private boolean suppressBuiltInStyles = false;
private String linkRel;
public HtmlDocumentBuilder(Writer out) {
super(out);
}
public HtmlDocumentBuilder(XmlStreamWriter writer) {
super(writer);
}
protected XmlStreamWriter createFormattingXmlStreamWriter(Writer out) {
XmlStreamWriter writer = super.createXmlStreamWriter(out);
return new FormattingXMLStreamWriter(writer) {
@Override
protected boolean preserveWhitespace(String elementName) {
return elementName.equals("pre") || elementName.equals("code");
}
};
}
/**
* The XML Namespace URI of the HTML elements, only used if {@link #isEmitAsDocument()}.
* The default value is "http://www.w3.org/1999/xhtml".
*/
public String getHtmlNsUri() {
return htmlNsUri;
}
/**
* The XML Namespace URI of the HTML elements, only used if {@link #isEmitAsDocument()}.
* The default value is "http://www.w3.org/1999/xhtml".
*/
public void setHtmlNsUri(String htmlNsUri) {
this.htmlNsUri = htmlNsUri;
}
/**
* The DTD to emit, if {@link #isEmitDtd()} and {@link #isEmitAsDocument()}.
* The default value is <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
*/
public String getHtmlDtd() {
return htmlDtd;
}
/**
* The DTD to emit, if {@link #isEmitDtd()} and {@link #isEmitAsDocument()}.
* @see #getHtmlDtd()
*/
public void setHtmlDtd(String htmlDtd) {
this.htmlDtd = htmlDtd;
}
/**
* Indicate if the resulting HTML should be emitted as a document. If false, the html and body tags are not included
* in the output.
* Default value is true.
*/
public boolean isEmitAsDocument() {
return emitAsDocument;
}
/**
* Indicate if the resulting HTML should be emitted as a document. If false, the html and body tags are not included
* in the output.
* Default value is true.
*/
public void setEmitAsDocument(boolean emitAsDocument) {
this.emitAsDocument = emitAsDocument;
}
/**
* Indicate if the resulting HTML should include a DTD. Ignored unless {@link #isEmitAsDocument()}.
* Default value is false.
*/
public boolean isEmitDtd() {
return emitDtd;
}
/**
* Indicate if the resulting HTML should include a DTD. Ignored unless {@link #isEmitAsDocument()}.
* Default value is false.
*/
public void setEmitDtd(boolean emitDtd) {
this.emitDtd = emitDtd;
}
/**
* indicate if the builder should attempt to conform to strict XHTML rules. The default is false.
*/
public boolean isXhtmlStrict() {
return xhtmlStrict;
}
/**
* indicate if the builder should attempt to conform to strict XHTML rules. The default is false.
*/
public void setXhtmlStrict(boolean xhtmlStrict) {
this.xhtmlStrict = xhtmlStrict;
}
/**
* Set the document title, which will be emitted into the <title> element.
* Ignored unless {@link #isEmitAsDocument()}
*
* @return the title or null if there is none
*/
public String getTitle() {
return title;
}
/**
* Set the document title, which will be emitted into the <title> element.
* Ignored unless {@link #isEmitAsDocument()}
*
* @param title the title or null if there is none
*/
public void setTitle(String title) {
this.title = title;
}
/**
* A default target attribute for links that have absolute (not relative) urls.
* By default this value is null. Setting this value will cause all HTML anchors
* to have their target attribute set if it's not explicitly specified in a {@link LinkAttributes}.
*/
public String getDefaultAbsoluteLinkTarget() {
return defaultAbsoluteLinkTarget;
}
/**
* A default target attribute for links that have absolute (not relative) urls.
* By default this value is null. Setting this value will cause all HTML anchors
* to have their target attribute set if it's not explicitly specified in a {@link LinkAttributes}.
*/
public void setDefaultAbsoluteLinkTarget(String defaultAbsoluteLinkTarget) {
this.defaultAbsoluteLinkTarget = defaultAbsoluteLinkTarget;
}
/**
* Add a CSS stylesheet to the output document as an URL, where the CSS stylesheet
* is referenced as an HTML link.
* Calling this method after {@link #beginDocument() starting the document}
* has no effect.
*
* Generates code similar to the following:
*
* <link type="text/css" rel="stylesheet" href="url"/>
*
*
* @param url the CSS url to use, which may be relative or absolute
*
* @see #addCssStylesheet(File)
*/
public void addCssStylesheet(String url) {
addStylesheet(new Stylesheet(url,false));
}
/**
* Add CSS stylesheet content to the output document.
* Calling this method after {@link #beginDocument() starting the document}
* has no effect.
*
* Generates code similar to the following:
*
* <style type="text/css">
* ... contents of the file ...
* </style>
*
*
* @param url the CSS url to use, which may be relative or absolute
* @param append if true, the content is appended, otherwise it is prepended in the stylesheet order
*
* @see #addCssStylesheet(File)
*/
public void addCssStylesheetContent(String content) {
addStylesheet(new Stylesheet(content,true));
}
private void addStylesheet(Stylesheet stylesheet) {
if (stylesheets == null) {
stylesheets = new ArrayList();
}
stylesheets.add(stylesheet);
}
/**
* Add a CSS stylesheet to the output document, where the contents of the CSS stylesheet
* are embedded in the HTML.
* Calling this method after {@link #beginDocument() starting the document}
* has no effect.
*
* Generates code similar to the following:
*
* <style type="text/css">
* ... contents of the file ...
* </style>
*
*
*
* @param file
*
* @see #addCssStylesheet(String)
*/
public void addCssStylesheet(File file) {
if (file == null) {
throw new IllegalArgumentException();
}
if (!file.exists()) {
throw new IllegalArgumentException(String.format("File does not exist: %s",file));
}
if (!file.isFile()) {
throw new IllegalArgumentException(String.format("Not a file: %s",file));
}
if (!file.canRead()) {
throw new IllegalArgumentException(String.format("File cannot be read: %s",file));
}
addStylesheet(new Stylesheet(file));
}
/**
* Indicate if inline styles should be used when creating output such as text boxes.
* When disabled inline styles are suppressed and CSS classes are used instead, with the default styles emitted as a
* stylesheet in the document head. If disabled and {@link #isEmitAsDocument()} is false, this option has the same effect as {@link #isSuppressBuiltInStyles()}.
*
* The default is true.
*
* @see #isSuppressBuiltInStyles()
*/
public boolean isUseInlineStyles() {
return useInlineStyles;
}
/**
* Indicate if inline styles should be used when creating output such as text boxes.
* When disabled inline styles are suppressed and CSS classes are used instead, with the default styles emitted as a
* stylesheet in the document head. If disabled and {@link #isEmitAsDocument()} is false, this option has the same effect as {@link #isSuppressBuiltInStyles()}.
*
* The default is true.
*/
public void setUseInlineStyles(boolean useInlineStyles) {
this.useInlineStyles = useInlineStyles;
}
/**
* indicate if default built-in CSS styles should be suppressed. Built-in styles are styles that are emitted by this builder
* to create the desired visual effect when rendering certain types of elements, such as warnings or infos.
* the default is false.
*
* @see #isUseInlineStyles()
*/
public boolean isSuppressBuiltInStyles() {
return suppressBuiltInStyles;
}
/**
* indicate if default built-in CSS styles should be suppressed. Built-in styles are styles that are emitted by this builder
* to create the desired visual effect when rendering certain types of elements, such as warnings or infos.
* the default is false.
*/
public void setSuppressBuiltInStyles(boolean suppressBuiltInStyles) {
this.suppressBuiltInStyles = suppressBuiltInStyles;
}
/**
* The 'rel' value for HTML links. If specified the value is applied to all links generated by the builder.
* The default value is null.
*
* Setting this value to "nofollow" is recommended for rendering HTML in areas where users may
* add links, for example in a blog comment. See
* http://en.wikipedia.org/wiki/Nofollow for more information.
*
* @return the rel or null if there is none.
* @see LinkAttributes#getRef()
*/
public String getLinkRel() {
return linkRel;
}
/**
* The 'rel' value for HTML links. If specified the value is applied to all links generated by the builder.
* The default value is null.
*
* Setting this value to "nofollow" is recommended for rendering HTML in areas where users may
* add links, for example in a blog comment. See
* http://en.wikipedia.org/wiki/Nofollow for more information.
*
* @param linkRel the rel or null if there is none.
*
* @see LinkAttributes#getRef()
*/
public void setLinkRel(String linkRel) {
this.linkRel = linkRel;
}
@Override
public void beginDocument() {
writer.setDefaultNamespace(htmlNsUri);
if (emitAsDocument) {
writer.writeStartDocument();
if (emitDtd && htmlDtd != null) {
writer.writeDTD(htmlDtd);
}
writer.writeStartElement(htmlNsUri,"html");
writer.writeDefaultNamespace(htmlNsUri);
writer.writeStartElement(htmlNsUri,"head");
if (base != null && baseInHead) {
writer.writeEmptyElement(htmlNsUri,"base");
writer.writeAttribute("href", base.toString());
}
if (title != null) {
writer.writeStartElement(htmlNsUri,"title");
writer.writeCharacters(title);
writer.writeEndElement(); // title
}
if (!useInlineStyles && !suppressBuiltInStyles) {
writer.writeStartElement(htmlNsUri,"style");
writer.writeAttribute("type", "text/css");
writer.writeCharacters("\n");
for (Entry ent: new TreeMap(blockTypeToElementInfo).entrySet()) {
ElementInfo elementInfo = ent.getValue();
if (elementInfo.cssStyles != null && elementInfo.cssClass != null) {
String[] classes = elementInfo.cssClass.split("\\s+");
for (String cssClass: classes) {
writer.writeCharacters(".");
writer.writeCharacters(cssClass);
writer.writeCharacters(" ");
}
writer.writeCharacters("{");
writer.writeCharacters(elementInfo.cssStyles);
writer.writeCharacters("}\n");
}
}
writer.writeEndElement();
}
if (stylesheets != null) {
for (Stylesheet stylesheet: stylesheets) {
if (stylesheet.url != null) {
//
writer.writeEmptyElement(htmlNsUri,"link");
writer.writeAttribute("type", "text/css");
writer.writeAttribute("rel", "stylesheet");
writer.writeAttribute("href", makeUrlAbsolute(stylesheet.url));
} else {
//
writer.writeStartElement(htmlNsUri,"style");
writer.writeAttribute("type", "text/css");
String css;
if (stylesheet.content != null) {
css = stylesheet.content;
} else {
try {
css = readFully(stylesheet.file);
} catch (IOException e) {
throw new IllegalStateException(String.format("Cannot read file: %s",stylesheet.file),e);
}
}
writer.writeCharacters(css);
writer.writeEndElement();
}
}
}
writer.writeEndElement(); // head
writer.writeStartElement(htmlNsUri,"body");
} else {
// sanity check
if (stylesheets != null && !stylesheets.isEmpty()) {
throw new IllegalStateException("CSS stylesheets are specified but the HTML output is not a document");
}
}
}
@Override
public void endDocument() {
if (emitAsDocument) {
writer.writeEndElement(); // body
writer.writeEndElement(); // html
writer.writeEndDocument();
}
writer.close();
}
@Override
public void entityReference(String entity) {
writer.writeEntityRef(entity);
}
@Override
public void acronym(String text, String definition) {
writer.writeStartElement(htmlNsUri,"acronym");
writer.writeAttribute("title", definition);
writer.writeCharacters(text);
writer.writeEndElement();
}
@Override
public void link(Attributes attributes,String hrefOrHashName, String text) {
writer.writeStartElement(htmlNsUri,"a");
writer.writeAttribute("href", makeUrlAbsolute(hrefOrHashName));
applyLinkAttributes(attributes,hrefOrHashName);
characters(text);
writer.writeEndElement(); // a
}
@Override
public void beginBlock(BlockType type, Attributes attributes) {
ElementInfo elementInfo = blockTypeToElementInfo.get(type);
if (elementInfo == null) {
throw new IllegalStateException(type.name());
}
writer.writeStartElement(htmlNsUri,elementInfo.name);
if (elementInfo.cssClass != null) {
if (attributes.getCssClass() == null) {
attributes.setCssClass(elementInfo.cssClass);
} else {
attributes.setCssClass(elementInfo.cssClass+' '+attributes.getCssClass());
}
}
if (useInlineStyles && !suppressBuiltInStyles && elementInfo.cssStyles != null) {
if (attributes.getCssStyle() == null) {
attributes.setCssStyle(elementInfo.cssStyles);
} else {
attributes.setCssStyle(elementInfo.cssStyles+attributes.getCssStyle());
}
}
if (type == BlockType.TABLE) {
applyTableAttributes(attributes);
} else if (type == BlockType.TABLE_ROW) {
applyTableRowAttributes(attributes);
} else if (type == BlockType.TABLE_CELL_HEADER || type == BlockType.TABLE_CELL_NORMAL) {
applyCellAttributes(attributes);
} else if (type == BlockType.BULLETED_LIST || type == BlockType.NUMERIC_LIST) {
applyListAttributes(attributes);
} else if (type == BlockType.QUOTE) {
applyQuoteAttributes(attributes);
} else {
applyAttributes(attributes);
// create the titled panel effect if a title is specified
if (attributes.getTitle() != null) {
beginBlock(BlockType.PARAGRAPH, new Attributes());
beginSpan(SpanType.BOLD, new Attributes());
characters(attributes.getTitle());
endSpan();
endBlock();
}
}
}
@Override
public void beginHeading(int level, Attributes attributes) {
if (level > 6) {
level = 6;
}
writer.writeStartElement(htmlNsUri,"h"+level);
applyAttributes(attributes);
}
@Override
public void beginSpan(SpanType type, Attributes attributes) {
String elementName = spanTypeToElementName.get(type);
if (elementName == null) {
throw new IllegalStateException(type.name());
}
writer.writeStartElement(htmlNsUri,elementName);
applyAttributes(attributes);
}
@Override
public void endBlock() {
writer.writeEndElement();
}
@Override
public void endHeading() {
writer.writeEndElement();
}
@Override
public void endSpan() {
writer.writeEndElement();
}
@Override
public void image(Attributes attributes, String url) {
writer.writeEmptyElement(htmlNsUri,"img");
applyImageAttributes(attributes);
writer.writeAttribute("src", makeUrlAbsolute(url));
}
private void applyListAttributes(Attributes attributes) {
applyAttributes(attributes);
if (attributes instanceof ListAttributes) {
ListAttributes listAttributes = (ListAttributes) attributes;
if (listAttributes.getStart() != null) {
writer.writeAttribute("start", listAttributes.getStart());
}
}
}
private void applyQuoteAttributes(Attributes attributes) {
applyAttributes(attributes);
if (attributes instanceof QuoteAttributes) {
QuoteAttributes quoteAttributes = (QuoteAttributes) attributes;
if (quoteAttributes.getCitation() != null) {
writer.writeAttribute("cite", quoteAttributes.getCitation());
}
}
}
private void applyTableAttributes(Attributes attributes) {
applyAttributes(attributes);
if (attributes.getTitle() != null) {
writer.writeAttribute("title", attributes.getTitle());
}
if (attributes instanceof TableAttributes) {
TableAttributes tableAttributes = (TableAttributes) attributes;
if (tableAttributes.getBgcolor() != null) {
writer.writeAttribute("bgcolor", tableAttributes.getBgcolor());
}
if (tableAttributes.getBorder() != null) {
writer.writeAttribute("border", tableAttributes.getBorder());
}
if (tableAttributes.getCellpadding() != null) {
writer.writeAttribute("cellpadding", tableAttributes.getCellpadding());
}
if (tableAttributes.getCellspacing() != null) {
writer.writeAttribute("cellspacing", tableAttributes.getCellspacing());
}
if (tableAttributes.getFrame() != null) {
writer.writeAttribute("frame", tableAttributes.getFrame());
}
if (tableAttributes.getRules() != null) {
writer.writeAttribute("rules", tableAttributes.getRules());
}
if (tableAttributes.getSummary() != null) {
writer.writeAttribute("summary", tableAttributes.getSummary());
}
if (tableAttributes.getWidth() != null) {
writer.writeAttribute("width", tableAttributes.getWidth());
}
}
}
private void applyTableRowAttributes(Attributes attributes) {
applyAttributes(attributes);
if (attributes.getTitle() != null) {
writer.writeAttribute("title", attributes.getTitle());
}
if (attributes instanceof TableRowAttributes) {
TableRowAttributes tableRowAttributes = (TableRowAttributes) attributes;
if (tableRowAttributes.getBgcolor() != null) {
writer.writeAttribute("bgcolor", tableRowAttributes.getBgcolor());
}
if (tableRowAttributes.getAlign() != null) {
writer.writeAttribute("align", tableRowAttributes.getAlign());
}
if (tableRowAttributes.getValign() != null) {
writer.writeAttribute("valign", tableRowAttributes.getValign());
}
}
}
private void applyCellAttributes(Attributes attributes) {
applyAttributes(attributes);
if (attributes.getTitle() != null) {
writer.writeAttribute("title", attributes.getTitle());
}
if (attributes instanceof TableCellAttributes) {
TableCellAttributes tableCellAttributes = (TableCellAttributes) attributes;
if (tableCellAttributes.getBgcolor() != null) {
writer.writeAttribute("bgcolor", tableCellAttributes.getBgcolor());
}
if (tableCellAttributes.getAlign() != null) {
writer.writeAttribute("align", tableCellAttributes.getAlign());
}
if (tableCellAttributes.getValign() != null) {
writer.writeAttribute("valign", tableCellAttributes.getValign());
}
if (tableCellAttributes.getRowspan() != null) {
writer.writeAttribute("rowspan", tableCellAttributes.getRowspan());
}
if (tableCellAttributes.getColspan() != null) {
writer.writeAttribute("colspan", tableCellAttributes.getColspan());
}
}
}
private void applyImageAttributes(Attributes attributes) {
int border = 0;
Align align = null;
if (attributes instanceof ImageAttributes) {
ImageAttributes imageAttributes = (ImageAttributes) attributes;
border = imageAttributes.getBorder();
align = imageAttributes.getAlign();
}
if (xhtmlStrict) {
String borderStyle = String.format("border-width: %spx;",border);
String alignStyle = null;
if (align != null) {
switch (align) {
case Center:
case Right:
case Left:
alignStyle = "text-align: "+align.name().toLowerCase()+";";
break;
case Bottom:
case Baseline:
case Top:
case Middle:
alignStyle = "vertical-align: "+align.name().toLowerCase()+";";
break;
case Texttop:
alignStyle = "vertical-align: text-top;";
break;
case Absmiddle:
alignStyle = "vertical-align: middle;";
break;
case Absbottom:
alignStyle = "vertical-align: bottom;";
break;
}
}
String additionalStyles = borderStyle;
if (alignStyle != null) {
additionalStyles += alignStyle;
}
if (attributes.getCssStyle() == null || attributes.getCssStyle().length() == 0) {
attributes.setCssStyle(additionalStyles);
} else {
attributes.setCssStyle(additionalStyles+attributes.getCssStyle());
}
}
applyAttributes(attributes);
boolean haveAlt = false;
if (attributes instanceof ImageAttributes) {
ImageAttributes imageAttributes = (ImageAttributes) attributes;
if (imageAttributes.getHeight() != -1) {
writer.writeAttribute("height", Integer.toString(imageAttributes.getHeight()));
}
if (imageAttributes.getWidth() != -1) {
writer.writeAttribute("width", Integer.toString(imageAttributes.getWidth()));
}
if (!xhtmlStrict && align != null) {
writer.writeAttribute("align", align.name().toLowerCase());
}
if (imageAttributes.getAlt() != null) {
haveAlt = true;
writer.writeAttribute("alt", imageAttributes.getAlt());
}
}
if (attributes.getTitle() != null) {
writer.writeAttribute("title", attributes.getTitle());
if (!haveAlt) {
haveAlt = true;
writer.writeAttribute("alt", attributes.getTitle());
}
}
if (xhtmlStrict) {
if (!haveAlt) {
// XHTML requires img/@alt
writer.writeAttribute("alt", "");
}
} else {
// only specify border attribute if it's not already specified in CSS
writer.writeAttribute("border",Integer.toString(border));
}
}
private void applyLinkAttributes(Attributes attributes, String href) {
applyAttributes(attributes);
boolean hasTarget = false;
String rel = linkRel;
if (attributes instanceof LinkAttributes) {
LinkAttributes linkAttributes = (LinkAttributes) attributes;
if (linkAttributes.getTarget() != null) {
hasTarget = true;
writer.writeAttribute("target", linkAttributes.getTarget());
}
if (linkAttributes.getRel() != null) {
rel = rel==null?linkAttributes.getRel():linkAttributes.getRel()+' '+rel;
}
}
if (attributes.getTitle() != null && attributes.getTitle().length() > 0) {
writer.writeAttribute("title", attributes.getTitle());
}
if (!hasTarget && defaultAbsoluteLinkTarget != null && href != null) {
if (isExternalLink(href)) {
writer.writeAttribute("target", defaultAbsoluteLinkTarget);
}
}
if (rel != null) {
writer.writeAttribute("rel", rel);
}
}
/**
* Note: this method does not apply the {@link Attributes#getTitle() title}.
*/
private void applyAttributes(Attributes attributes) {
if (attributes.getId() != null) {
writer.writeAttribute("id", attributes.getId());
}
if (attributes.getCssClass() != null) {
writer.writeAttribute("class", attributes.getCssClass());
}
if (attributes.getCssStyle() != null) {
writer.writeAttribute("style", attributes.getCssStyle());
}
if (attributes.getLanguage() != null) {
writer.writeAttribute("lang", attributes.getLanguage());
}
}
@Override
public void imageLink(Attributes linkAttributes, Attributes imageAttributes, String href, String imageUrl) {
writer.writeStartElement(htmlNsUri,"a");
writer.writeAttribute("href", makeUrlAbsolute(href));
applyLinkAttributes(linkAttributes,href);
writer.writeEmptyElement(htmlNsUri,"img");
applyImageAttributes(imageAttributes);
writer.writeAttribute("src", makeUrlAbsolute(imageUrl));
writer.writeEndElement(); // a
}
@Override
public void lineBreak() {
writer.writeEmptyElement(htmlNsUri,"br");
}
@Override
public void charactersUnescaped(String literal) {
writer.writeLiteral(literal);
}
private static final class ElementInfo {
final String name;
final String cssClass;
final String cssStyles;
public ElementInfo(String name, String cssClass, String cssStyles) {
this.name = name;
this.cssClass = cssClass;
this.cssStyles = cssStyles != null && !cssStyles.endsWith(";")?cssStyles+';':cssStyles;
}
public ElementInfo(String name) {
this(name,null,null);
}
}
private static class Stylesheet {
String content;
String url;
File file;
public Stylesheet(File file) {
this.file = file;
}
public Stylesheet(String urlOrContent,boolean content) {
if (content) {
this.content = urlOrContent;
} else {
this.url = urlOrContent;
}
}
}
private static String readFully(File inputFile) throws IOException {
int length = (int) inputFile.length();
if (length <= 0) {
length = 2048;
}
StringBuilder buf = new StringBuilder(length);
Reader reader = new BufferedReader(new FileReader(inputFile));
try {
int c;
while ((c = reader.read()) != -1) {
buf.append((char)c);
}
} finally {
reader.close();
}
return buf.toString();
}
}
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