123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122 |
- /*
- * Copyright 2000-2013 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
- package com.vaadin.sass.internal.tree;
-
- import java.util.ArrayList;
-
- import com.vaadin.sass.internal.ScssStylesheet;
- import com.vaadin.sass.internal.expression.ArithmeticExpressionEvaluator;
- import com.vaadin.sass.internal.parser.LexicalUnitImpl;
- import com.vaadin.sass.internal.util.StringUtil;
- import com.vaadin.sass.internal.visitor.VariableNodeHandler;
-
- public class VariableNode extends Node implements IVariableNode {
- private static final long serialVersionUID = 7003372557547748734L;
-
- private String name;
- private LexicalUnitImpl expr;
- private boolean guarded;
-
- public VariableNode(String name, LexicalUnitImpl expr, boolean guarded) {
- super();
- this.name = name;
- this.expr = expr;
- this.guarded = guarded;
- }
-
- public LexicalUnitImpl getExpr() {
- return expr;
- }
-
- public void setExpr(LexicalUnitImpl expr) {
- this.expr = expr;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public String getName() {
- return name;
- }
-
- public boolean isGuarded() {
- return guarded;
- }
-
- @Override
- public String toString() {
- StringBuilder builder = new StringBuilder("$");
- builder.append(name).append(": ").append(expr);
- return builder.toString();
- }
-
- public void setGuarded(boolean guarded) {
- this.guarded = guarded;
- }
-
- @Override
- public void replaceVariables(ArrayList<VariableNode> variables) {
- for (final VariableNode node : variables) {
- if (!equals(node)) {
-
- if (StringUtil
- .containsVariable(expr.toString(), node.getName())) {
- if (expr.getParameters() != null
- && StringUtil.containsVariable(expr.getParameters()
- .toString(), node.getName())) {
- replaceValues(expr.getParameters(), node);
- } else if (expr.getLexicalUnitType() == LexicalUnitImpl.SCSS_VARIABLE) {
- replaceValues(expr, node);
- }
- }
- }
- }
- }
-
- private void replaceValues(LexicalUnitImpl unit, VariableNode node) {
- while (unit != null) {
-
- if (unit.getLexicalUnitType() == LexicalUnitImpl.SCSS_VARIABLE
- && unit.getValue().toString().equals(node.getName())) {
- LexicalUnitImpl.replaceValues(unit, node.getExpr());
- }
-
- unit = unit.getNextLexicalUnit();
- }
- }
-
- @Override
- public void traverse() {
- /*
- * "replaceVariables(ScssStylesheet.getVariables());" seems duplicated
- * and can be extracted out of if, but it is not.
- * containsArithmeticalOperator must be called before replaceVariables.
- * Because for the "/" operator, it needs to see if its predecessor or
- * successor is a Variable or not, to determine it is an arithmetic
- * operator.
- */
- if (ArithmeticExpressionEvaluator.get().containsArithmeticalOperator(
- expr)) {
- replaceVariables(ScssStylesheet.getVariables());
- expr = ArithmeticExpressionEvaluator.get().evaluate(expr);
- } else {
- replaceVariables(ScssStylesheet.getVariables());
- }
- VariableNodeHandler.traverse(this);
- }
- }
|