Examples of CssIf

com.google.gwt.libideas.resources.css.ast.CssIf
com.google.gwt.resources.css.ast.CssIf
A GWTCSS if statement. The elif and else constructs are modeled as nested if statement is the elseNodes.

Examples of com.google.gwt.libideas.resources.css.ast.CssIf

      return null;
    }


    CssNode lastNode = nodes.get(nodes.size() - 1);
    if (lastNode instanceof CssIf) {
      CssIf asIf = (CssIf) lastNode;
      if (asIf.getElseNodes().isEmpty()) {
        return asIf;
      } else {
        return findLastIfInChain(asIf.getElseNodes());
      }
    }
    return null;
  }

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Examples of com.google.gwt.libideas.resources.css.ast.CssIf

      for (CssNode x : entry.getValue()) {
        TreeLogger loopLogger = logger.branch(TreeLogger.DEBUG,
            "Performing substitution in node " + x.toString());


        if (x instanceof CssIf) {
          CssIf asIf = (CssIf) x;


          // Generate the sub-expressions
          String expression = makeExpression(loopLogger, context,
              cssResourceType, new CollapsedNode(asIf), prettyOutput);


          String elseExpression;
          if (asIf.getElseNodes().isEmpty()) {
            // We'll treat an empty else block as an empty string
            elseExpression = "\"\"";
          } else {
            elseExpression = makeExpression(loopLogger, context,
                cssResourceType, new CollapsedNode(asIf.getElseNodes()),
                prettyOutput);
          }


          // ((expr) ? "CSS" : "elseCSS") +
          b.append("((" + asIf.getExpression() + ") ? " + expression + " : "
              + elseExpression + ") ");
          numExpressions = concatOp(numExpressions, b);


        } else if (x instanceof CssProperty) {
          CssProperty property = (CssProperty) x;

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Examples of com.google.gwt.libideas.resources.css.ast.CssIf

     * newly-generated CssIf node will be attached to the last CssIf in the
     * if/else chain.
     */
    void parseElif(String atRule) throws CSSException {
      List<CssNode> nodes = currentParent.peek().getNodes();
      CssIf lastIf = findLastIfInChain(nodes);


      if (lastIf == null) {
        throw new CSSException(CSSException.SAC_SYNTAX_ERR,
            "@elif must immediately follow an @if or @elif", null);
      }


      assert lastIf.getElseNodes().isEmpty();


      // @elif -> lif (because parseIf strips the first three chars)
      parseIf(atRule.substring(2));


      // Fix up the structure by remove the newly-created node from the parent
      // context and moving it to the end of the @if chain
      lastIf.getElseNodes().add(nodes.remove(nodes.size() - 1));
    }

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Examples of com.google.gwt.libideas.resources.css.ast.CssIf

     * The else nodes are processed as though they were written as {@code @elif
     * true} rules.
     */
    void parseElse(String atRule) throws CSSException {
      // The last CssIf in the if/else chain
      CssIf lastIf = findLastIfInChain(currentParent.peek().getNodes());


      if (lastIf == null) {
        throw new CSSException(CSSException.SAC_SYNTAX_ERR,
            "@else must immediately follow an @if or @elif", null);
      }


      // Create the CssIf to hold the @else rules
      String fakeElif = "@elif (true) " + atRule.substring(atRule.indexOf("{"));
      parseElif(fakeElif);
      CssIf elseIf = findLastIfInChain(currentParent.peek().getNodes());


      assert lastIf.getElseNodes().size() == 1
          && lastIf.getElseNodes().get(0) == elseIf;
      assert elseIf.getElseNodes().isEmpty();


      // Merge the rules into the last CssIf to break the chain and prevent
      // @else followed by @else
      lastIf.getElseNodes().clear();
      lastIf.getElseNodes().addAll(elseIf.getNodes());
    }

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Examples of com.google.gwt.libideas.resources.css.ast.CssIf

    void parseIf(String atRule) throws CSSException {
      String predicate = atRule.substring(3, atRule.indexOf('{') - 1).trim();
      String blockContents = atRule.substring(atRule.indexOf('{') + 1,
          atRule.length() - 1);


      CssIf cssIf = new CssIf();


      if (predicate.startsWith("(") && predicate.endsWith(")")) {
        cssIf.setExpression(predicate);
      } else {


        String[] predicateParts = predicate.split("\\s");


        switch (predicateParts.length) {
          case 0:
            throw new CSSException(CSSException.SAC_SYNTAX_ERR,
                "Incorrect format for @if predicate", null);
          case 1:
            if (predicateParts[0].length() == 0) {
              throw new CSSException(CSSException.SAC_SYNTAX_ERR,
                  "Incorrect format for @if predicate", null);
            }
            errors.log(
                TreeLogger.WARN,
                "Deprecated syntax for Java expression detected. Enclose the expression in parentheses");
            cssIf.setExpression(predicateParts[0]);
            break;
          default:
            if (predicateParts[0].startsWith("!")) {
              cssIf.setNegated(true);
              cssIf.setProperty(predicateParts[0].substring(1));
            } else {
              cssIf.setProperty(predicateParts[0]);
            }
            String[] values = new String[predicateParts.length - 1];
            System.arraycopy(predicateParts, 1, values, 0, values.length);
            cssIf.setPropertyValues(values);
        }
      }


      parseInnerStylesheet("@if", cssIf, blockContents);
    }

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Examples of com.google.gwt.resources.css.ast.CssIf

      for (CssNode x : entry.getValue()) {
        TreeLogger loopLogger = logger.branch(TreeLogger.DEBUG,
            "Performing substitution in node " + x.toString());


        if (x instanceof CssIf) {
          CssIf asIf = (CssIf) x;


          // Generate the sub-expressions
          String expression = makeExpression(loopLogger, context,
              cssResourceType, new CollapsedNode(asIf), prettyOutput);


          String elseExpression;
          if (asIf.getElseNodes().isEmpty()) {
            // We'll treat an empty else block as an empty string
            elseExpression = "\"\"";
          } else {
            elseExpression = makeExpression(loopLogger, context,
                cssResourceType, new CollapsedNode(asIf.getElseNodes()),
                prettyOutput);
          }


          // ((expr) ? "CSS" : "elseCSS") +
          b.append("((" + asIf.getExpression() + ") ? " + expression + " : "
              + elseExpression + ") ");
          numExpressions = concatOp(numExpressions, b);


        } else if (x instanceof CssProperty) {
          CssProperty property = (CssProperty) x;

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Examples of com.google.gwt.resources.css.ast.CssIf

      return null;
    }


    CssNode lastNode = nodes.get(nodes.size() - 1);
    if (lastNode instanceof CssIf) {
      CssIf asIf = (CssIf) lastNode;
      if (asIf.getElseNodes().isEmpty()) {
        return asIf;
      } else {
        return findLastIfInChain(asIf.getElseNodes());
      }
    }
    return null;
  }

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Examples of com.google.gwt.resources.css.ast.CssIf

     * newly-generated CssIf node will be attached to the last CssIf in the
     * if/else chain.
     */
    void parseElif(String atRule) throws CSSException {
      List<CssNode> nodes = currentParent.peek().getNodes();
      CssIf lastIf = findLastIfInChain(nodes);


      if (lastIf == null) {
        throw new CSSException(CSSException.SAC_SYNTAX_ERR,
            "@elif must immediately follow an @if or @elif", null);
      }


      assert lastIf.getElseNodes().isEmpty();


      // @elif -> lif (because parseIf strips the first three chars)
      parseIf(atRule.substring(2));


      // Fix up the structure by remove the newly-created node from the parent
      // context and moving it to the end of the @if chain
      lastIf.getElseNodes().add(nodes.remove(nodes.size() - 1));
    }

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Examples of com.google.gwt.resources.css.ast.CssIf

     * The else nodes are processed as though they were written as {@code @elif
     * true} rules.
     */
    void parseElse(String atRule) throws CSSException {
      // The last CssIf in the if/else chain
      CssIf lastIf = findLastIfInChain(currentParent.peek().getNodes());


      if (lastIf == null) {
        throw new CSSException(CSSException.SAC_SYNTAX_ERR,
            "@else must immediately follow an @if or @elif", null);
      }


      // Create the CssIf to hold the @else rules
      String fakeElif = "@elif (true) " + atRule.substring(atRule.indexOf("{"));
      parseElif(fakeElif);
      CssIf elseIf = findLastIfInChain(currentParent.peek().getNodes());


      assert lastIf.getElseNodes().size() == 1
          && lastIf.getElseNodes().get(0) == elseIf;
      assert elseIf.getElseNodes().isEmpty();


      // Merge the rules into the last CssIf to break the chain and prevent
      // @else followed by @else
      lastIf.getElseNodes().clear();
      lastIf.getElseNodes().addAll(elseIf.getNodes());
    }

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Examples of com.google.gwt.resources.css.ast.CssIf

    void parseIf(String atRule) throws CSSException {
      String predicate = atRule.substring(3, atRule.indexOf('{') - 1).trim();
      String blockContents = atRule.substring(atRule.indexOf('{') + 1,
          atRule.length() - 1);


      CssIf cssIf = new CssIf();


      if (predicate.startsWith("(") && predicate.endsWith(")")) {
        cssIf.setExpression(predicate);
      } else {


        String[] predicateParts = predicate.split("\\s");


        switch (predicateParts.length) {
          case 0:
            throw new CSSException(CSSException.SAC_SYNTAX_ERR,
                "Incorrect format for @if predicate", null);
          case 1:
            if (predicateParts[0].length() == 0) {
              throw new CSSException(CSSException.SAC_SYNTAX_ERR,
                  "Incorrect format for @if predicate", null);
            }
            errors.log(
                TreeLogger.WARN,
                "Deprecated syntax for Java expression detected. Enclose the expression in parentheses");
            cssIf.setExpression(predicateParts[0]);
            break;
          default:
            if (predicateParts[0].startsWith("!")) {
              cssIf.setNegated(true);
              cssIf.setProperty(predicateParts[0].substring(1));
            } else {
              cssIf.setProperty(predicateParts[0]);
            }
            String[] values = new String[predicateParts.length - 1];
            System.arraycopy(predicateParts, 1, values, 0, values.length);
            cssIf.setPropertyValues(values);
        }
      }


      parseInnerStylesheet("@if", cssIf, blockContents);
    }

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