Example usage for com.google.common.css.compiler.ast CssConditionalRuleNode getType

Introduction

In this page you can find the example usage for com.google.common.css.compiler.ast CssConditionalRuleNode getType.

Prototype

public Type getType() 

Source Link

Usage

From source file:com.google.gwt.resources.gss.ast.CssRuntimeConditionalRuleNode.java

public CssRuntimeConditionalRuleNode(CssConditionalRuleNode node, @Nullable CssJavaExpressionNode condition) {
    super(node.getType(), node.getName().deepCopy(), null,
            node.getBlock() != null ? node.getBlock().deepCopy() : null);
    setSourceCodeLocation(node.getSourceCodeLocation());

    if (condition != null) {
        setRuntimeCondition(condition);/*from  ww  w  . j a va2 s  .com*/
    }
}

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From source file:com.google.gwt.resources.gss.CreateRuntimeConditionalNodes.java

private void manuallyVisitConditionalRule(CssConditionalRuleNode node, CssConditionalBlockNode parent) {

    if (node.getType() != Type.ELSE) {
        CssBooleanExpressionNode nodeCondition = node.getCondition();
        String condition = extractRuntimeCondition(nodeCondition);

        if (condition != null) {
            CssJavaExpressionNode newNode = new CssJavaExpressionNode(condition,
                    nodeCondition.getSourceCodeLocation());

            CssRuntimeConditionalRuleNode newRuleNode = new CssRuntimeConditionalRuleNode(node, newNode);

            // unfortunately visitController.replaceCurrentBlockChildWith doesn't work with
            // CssConditionnalRuleNode
            int index = parent.getChildren().indexOf(node);
            parent.replaceChildAt(index, Lists.newArrayList(newRuleNode));
        }/*  ww w. j ava2  s .com*/
    }
}

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From source file:com.google.gwt.resources.gss.CssPrinter.java

@Override
public boolean enterConditionalRule(CssConditionalRuleNode node) {
    if (node.getType() == Type.ELSE) {
        elseNodeFound.pop();/*from  w w w  . ja  va2 s  .  co m*/
        elseNodeFound.push(true);

        masterStringBuilder.append(LEFT_BRACKET);
    } else {
        CssRuntimeConditionalRuleNode conditionalRuleNode = (CssRuntimeConditionalRuleNode) node;

        masterStringBuilder.append(LEFT_BRACKET);
        masterStringBuilder.append(conditionalRuleNode.getRuntimeCondition().getValue());
        masterStringBuilder.append(") ? (");

        // reset concatenation counter
        concatenationNumber = 0;
    }

    return true;
}

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From source file:com.google.gwt.resources.gss.ExtendedEliminateConditionalNodes.java

private boolean enterRuntimeConditionalBlock(CssConditionalBlockNode block) {
    boolean runtimeEvaluationNodeFound = false;
    List<CssConditionalRuleNode> newChildren = new ArrayList<CssConditionalRuleNode>(block.numChildren());

    for (CssConditionalRuleNode currentConditional : block.childIterable()) {
        if (currentConditional.getType() == Type.ELSE) {
            newChildren.add(currentConditional);
            break;
        }//from  w  w w. j a va  2  s.  co m

        if (currentConditional instanceof CssRuntimeConditionalRuleNode) {
            runtimeEvaluationNodeFound = true;
            newChildren.add(currentConditional);
            continue;
        }

        // The node can be evaluated at compile time
        BooleanExpressionEvaluator evaluator = new BooleanExpressionEvaluator(currentConditional.getCondition(),
                trueConditions);

        CssBooleanExpressionNode result = evaluator.evaluate();
        boolean isTrue = CssBooleanExpressionNode.Type.TRUE_CONSTANT.equals(result.getValue());

        if (!isTrue) {
            // any node evaluated to false can be removed
        } else if (!runtimeEvaluationNodeFound) {
            // node evaluated to true before the runtime condition, replace the conditional block by the
            // children of this current conditional node.
            visitController.replaceCurrentBlockChildWith(currentConditional.getBlock().getChildren(), true);
            return true;
        } else {
            // node evaluated to true before the runtime condition, transform this node to an else node
            CssConditionalRuleNode newNode = new CssConditionalRuleNode(Type.ELSE, currentConditional.getName(),
                    null, currentConditional.getBlock());

            newChildren.add(newNode);
            break;
        }
    }

    CssConditionalBlockNode newNode = new CssConditionalBlockNode();
    for (CssConditionalRuleNode child : newChildren) {
        newNode.addChildToBack(child);
    }

    visitController.replaceCurrentBlockChildWith(Lists.newArrayList(newNode), true);

    // mark this node as already visited.
    alreadyTreatedNode.add(newNode);

    return true;
}

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From source file:com.google.gwt.resources.gss.CssPrinter.java

@Override
public void leaveConditionalRule(CssConditionalRuleNode node) {
    masterStringBuilder.append(flushInternalStringBuilder()).append(RIGHT_BRACKET);

    if (node.getType() != Type.ELSE) {
        masterStringBuilder.append(" : ");
    }/*from   w  ww .j a v  a2  s  .c  om*/
}

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