Examples with RestrictedCssStyleSheetImpl com.randomnoun.build.javaToGraphviz.dom.RestrictedCssStyleSheetImpl used on opensource projects

Example 1 with RestrictedCssStyleSheetImpl

use of com.randomnoun.build.javaToGraphviz.dom.RestrictedCssStyleSheetImpl in project java-to-graphviz by randomnoun.

the class CommentExtractor method getStyleSheet.

// when we construct the DagNodes, automatically add classes based on AST type
// and line number, which will make colouring these things in from jacoco output that much simpler
// and whatever JVMTI uses, which is probably line numbers as well
/**
 * Return a stylesheet, composed of:
 * <ul>
 * <li>imported base CSS
 * <li>imported user CSS
 * <li>source code styles (gv-style blocks), may import other CSS
 * <li>user CSS rules
 * </ul>
 *
 * @param comments
 * @param baseCssHref
 * @param userCssHrefs
 * @param userCssRules
 * @return
 * @throws IOException
 */
public CSSStyleSheet getStyleSheet(List<CommentText> comments, String baseCssHref, List<String> userCssHrefs, List<String> userCssRules) throws IOException {
    String css = "";
    if (!Text.isBlank(baseCssHref) && !baseCssHref.equals("-")) {
        css = "@import \"" + baseCssHref + "\";\n";
    }
    if (userCssHrefs != null) {
        for (String s : userCssHrefs) {
            css += "@import \"" + s + "\";\n";
        }
    }
    for (CommentText c : comments) {
        // String t = c.text;
        if (c instanceof GvStyleComment) {
            // remove non-standard css comments
            String[] ss = ((GvStyleComment) c).style.split("\n");
            for (int i = 0; i < ss.length; i++) {
                String s = ss[i];
                if (s.contains("//") && !s.contains("://")) {
                    // double-slash can start a comment, but not if it might be a @import url(scheme://...) double-slash
                    s = s.substring(0, s.indexOf("//"));
                }
                css += (i == 0 ? "" : "\n") + s;
            }
        } else if (c instanceof GvComment) {
        // could check inline styles here maybe
        }
    }
    if (userCssRules != null) {
        for (String s : userCssRules) {
            css += s + "\n";
        }
    }
    if (logger.isDebugEnabled()) {
        logger.debug("here's the css: " + css);
    }
    // pre-process the // comments out of the block comments, which isn't standard CSS
    CSSOMParser parser = new CSSOMParser(new SACParserCSS3());
    InputSource source = new InputSource(new StringReader(css));
    CSSStyleSheet stylesheet = parser.parseStyleSheet(source, null, null);
    CSSStyleSheetImpl stylesheetImpl = (CSSStyleSheetImpl) stylesheet;
    RestrictedCssStyleSheetImpl restrictedStylesheetImpl = new RestrictedCssStyleSheetImpl(stylesheetImpl);
    // probably need to wrap this in something which overrides importImports
    // public void importImports(final boolean recursive) throws DOMException {
    // or provide my own URI handler and set a weird base URI
    // stylesheetImpl.importImports(true); // recursive = true
    restrictedStylesheetImpl.importImports(true);
    if (logger.isDebugEnabled()) {
        logger.debug("CSS rules: " + restrictedStylesheetImpl.getCssText());
    }
    return restrictedStylesheetImpl;
}