Examples of org.xhtmlrenderer.css.sheet.StylesheetInfo

org.xhtmlrenderer.css.sheet.StylesheetInfo
A reference to a stylesheet. If no stylesheet is set, the matcher will try to find the stylesheet by uri, first from the StylesheetFactory cache, then by loading the uri if it is not cached.
Therefore, either a stylesheet must be set, or a uri must be set
Origin defaults to USER_AGENT and media defaults to "all" @author Torbjörn Gannholm

    private void import_rule(Stylesheet stylesheet) throws IOException {
        //System.out.println("import()");
        try {
            Token t = next();
            if (t == Token.TK_IMPORT_SYM) {
                StylesheetInfo info = new StylesheetInfo();
                info.setOrigin(stylesheet.getOrigin());
                info.setType("text/css");
                
                skip_whitespace();
                t = next();
                switch (t.getType()) {
                    case Token.STRING:
                    case Token.URI:
                        try {
                            URI parent = new URI(stylesheet.getURI());
                            info.setUri(parent.resolve(getTokenValue(t)).toString());
                        } catch (URISyntaxException e) {
                            throw new CSSParseException("Invalid URL, " + e.getMessage(), getCurrentLine());
                        }
                        skip_whitespace();
                        t = la();
                        if (t == Token.TK_IDENT) {
                            info.addMedium(medium());
                            while (true) {
                                t = la();
                                if (t == Token.TK_COMMA) {
                                    next();
                                    skip_whitespace();
                                    t = la();
                                    if (t == Token.TK_IDENT) {
                                        info.addMedium(medium());
                                    } else {
                                        throw new CSSParseException(
                                                t, Token.TK_IDENT, getCurrentLine());
                                    }
                                } else {
                                    break;
                                }
                            }
                        }
                        t = next();
                        if (t == Token.TK_SEMICOLON) {
                            skip_whitespace();
                        } else {
                            push(t);
                            throw new CSSParseException(
                                    t, Token.TK_SEMICOLON, getCurrentLine());
                        }
                        break;
                    default:
                        push(t);
                        throw new CSSParseException(
                            t, new Token[] { Token.TK_STRING, Token.TK_URI }, getCurrentLine());
                }
                
                if (info.getMedia().size() == 0) {
                    info.addMedium("all");
                }
                stylesheet.addImportRule(info);
            } else {
                push(t);
                throw new CSSParseException(

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        for (int i = 0, len = nl.getLength(); i < len; i++) {
            Node node = nl.item(i);
            if (node.getNodeType() != Node.PROCESSING_INSTRUCTION_NODE) continue;
            ProcessingInstruction piNode = (ProcessingInstruction) node;
            if (!piNode.getTarget().equals("xml-stylesheet")) continue;
            StylesheetInfo info = new StylesheetInfo();
            info = new StylesheetInfo();
            info.setOrigin(StylesheetInfo.AUTHOR);
            String pi = piNode.getData();
            Matcher m = _alternatePattern.matcher(pi);
            if (m.matches()) {
                int start = m.end();
                String alternate = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                //TODO: handle alternate stylesheets
                if (alternate.equals("yes")) continue;//DON'T get alternate stylesheets for now
            }
            m = _typePattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String type = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                //TODO: handle other stylesheet types
                if (!type.equals("text/css")) continue;//for now
                info.setType(type);
            }
            m = _hrefPattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String href = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setUri(href);
            }
            m = _titlePattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String title = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setTitle(title);
            }
            m = _mediaPattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String media = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setMedia(media);
            } else {
                info.addMedium("screen");
            }
            list.add(info);
        }


        return (StylesheetInfo[])list.toArray(new StylesheetInfo[list.size()]);

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    protected StylesheetInfo readStyleElement(Element style) {
        String media = style.getAttribute("media");
        if ("".equals(media)) {
            media = "all";
        }//default for HTML is "screen", but that is silly and firefox seems to assume "all"
        StylesheetInfo info = new StylesheetInfo();
        info.setMedia(media);
        info.setType(style.getAttribute("type"));
        info.setTitle(style.getAttribute("title"));
        info.setOrigin(StylesheetInfo.AUTHOR);
        
        StringBuffer buf = new StringBuffer();
        Node current = style.getFirstChild();
        while (current != null) {
            if (current instanceof CharacterData) {
                buf.append(((CharacterData)current).getData());
            }
            current = current.getNextSibling();
        }
        
        String css = buf.toString().trim();
        if (css.length() > 0) {
            info.setContent(css.toString());
            
            return info;
        } else {
            return null;
        }

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        String type = link.getAttribute("type");
        if (! (type.equals("") || type.equals("text/css"))) {
            return null;
        }
        
        StylesheetInfo info = new StylesheetInfo();
        
        if (type.equals("")) {
            type = "text/css";
        } // HACK is not entirely correct because default may be set by META tag or HTTP headers
        info.setType(type);
        
        info.setOrigin(StylesheetInfo.AUTHOR);
        
        info.setUri(link.getAttribute("href"));
        String media = link.getAttribute("media");
        if ("".equals(media)) {
            media = "all";
        }
        info.setMedia(media);
        
        String title = link.getAttribute("title");
        info.setTitle(title);


        return info;
    }

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        if (head != null) {
            Node current = head.getFirstChild();
            while (current != null) {
                if (current.getNodeType() == Node.ELEMENT_NODE) {
                    Element elem = (Element)current;
                    StylesheetInfo info = null;
                    String elemName = elem.getLocalName();
                    if (elemName == null)
                    {
                        elemName = elem.getTagName();
                    }

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            if (_defaultStylesheetError) {
                return null;
            }
            
            StylesheetInfo info = new StylesheetInfo();
            info.setUri(getNamespace());
            info.setOrigin(StylesheetInfo.USER_AGENT);
            info.setMedia("all");
            info.setType("text/css");
            
            InputStream is = null;
            try {
                is = getDefaultStylesheetStream();


                if (_defaultStylesheetError) {
                    return null;
                }
                
                Stylesheet sheet = factory.parse(new InputStreamReader(is), info);
                info.setStylesheet(sheet);
                
                is.close();
                is = null;
            } catch (Exception e) {
                _defaultStylesheetError = true;

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        for (int i = 0, len = nl.getLength(); i < len; i++) {
            Node node = nl.item(i);
            if (node.getNodeType() != Node.PROCESSING_INSTRUCTION_NODE) continue;
            ProcessingInstruction piNode = (ProcessingInstruction) node;
            if (!piNode.getTarget().equals("xml-stylesheet")) continue;
            StylesheetInfo info = new StylesheetInfo();
            info = new StylesheetInfo();
            info.setOrigin(StylesheetInfo.AUTHOR);
            String pi = piNode.getData();
            Matcher m = _alternatePattern.matcher(pi);
            if (m.matches()) {
                int start = m.end();
                String alternate = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                //TODO: handle alternate stylesheets
                if (alternate.equals("yes")) continue;//DON'T get alternate stylesheets for now
            }
            m = _typePattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String type = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                //TODO: handle other stylesheet types
                if (!type.equals("text/css")) continue;//for now
                info.setType(type);
            }
            m = _hrefPattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String href = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setUri(href);
            }
            m = _titlePattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String title = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setTitle(title);
            }
            m = _mediaPattern.matcher(pi);
            if (m.find()) {
                int start = m.end();
                String media = pi.substring(start + 1, pi.indexOf(pi.charAt(start), start + 1));
                info.setMedia(media);
            } else {
                info.addMedium("screen");
            }
            list.add(info);
        }


        return (StylesheetInfo[])list.toArray(new StylesheetInfo[list.size()]);

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    }
    
    private List readAndParseAll(List infos, String medium) {
        List result = new ArrayList(infos.size() + 15);
        for (Iterator i = infos.iterator(); i.hasNext(); ) {
            StylesheetInfo info = (StylesheetInfo)i.next();
            if (info.appliesToMedia(medium)) {
                Stylesheet sheet = info.getStylesheet();
                
                if (sheet == null) {
                    sheet = _stylesheetFactory.getStylesheet(info);
                }

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    /**
     * Flushes any stylesheet associated with this stylereference (based on the user agent callback) that are in cache.
     */
    public void flushStyleSheets() {
        String uri = _uac.getBaseURL();
        StylesheetInfo info = new StylesheetInfo();
        info.setUri(uri);
        info.setOrigin(StylesheetInfo.AUTHOR);
        if (_stylesheetFactory.containsStylesheet(uri)) {
            _stylesheetFactory.removeCachedStylesheet(uri);
            XRLog.cssParse("Removing stylesheet '" + uri + "' from cache by request.");
        } else {
            XRLog.cssParse("Requested removing stylesheet '" + uri + "', but it's not in cache.");

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     */
    private List getStylesheets() {
        List infos = new LinkedList();
        long st = System.currentTimeMillis();


        StylesheetInfo defaultStylesheet = _nsh.getDefaultStylesheet(_stylesheetFactory);
        if (defaultStylesheet != null) {
            infos.add(defaultStylesheet);
        }


        StylesheetInfo[] refs = _nsh.getStylesheets(_doc);

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