/*
* 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 java.util.Collection;
import java.util.Map;
import com.vaadin.sass.internal.ScssStylesheet;
import com.vaadin.sass.internal.parser.LexicalUnitImpl;
import com.vaadin.sass.internal.visitor.MixinNodeHandler;
public class MixinNode extends Node implements IVariableNode {
private static final long serialVersionUID = 4725008226813110658L;
private String name;
private ArrayList<LexicalUnitImpl> arglist;
public MixinNode(String name, Collection<LexicalUnitImpl> args) {
super();
this.name = name;
arglist = new ArrayList<LexicalUnitImpl>();
if (args != null && !args.isEmpty()) {
arglist.addAll(args);
}
}
@Override
public String toString() {
return "name: " + name + " args: " + arglist;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public ArrayList<LexicalUnitImpl> getArglist() {
return arglist;
}
public void setArglist(ArrayList<LexicalUnitImpl> arglist) {
this.arglist = arglist;
}
/**
* Replace variable references with their values in the mixin argument list.
*/
@Override
public void replaceVariables(ArrayList<VariableNode> variables) {
for (final VariableNode var : variables) {
for (final LexicalUnitImpl arg : new ArrayList<LexicalUnitImpl>(
arglist)) {
LexicalUnitImpl unit = arg;
// only perform replace in the value if separate argument name
// and value
if (unit.getNextLexicalUnit() != null) {
unit = unit.getNextLexicalUnit();
}
if (unit.getLexicalUnitType() == LexicalUnitImpl.SCSS_VARIABLE
&& unit.getStringValue().equals(var.getName())) {
unit.replaceValue(var.getExpr());
}
}
if (name.startsWith("$")) {
if (name.equals("$" + var.getName())) {
name = var.getExpr().toString();
}
} else if (name.startsWith("#{") && name.endsWith("}")) {
if (name.equals("#{$" + var.getName() + "}")) {
name = var.getExpr().toString();
}
}
}
}
@Override
public void traverse() {
try {
// limit variable scope to the mixin
Map<String, VariableNode> variableScope = ScssStylesheet
.openVariableScope();
replaceVariables(ScssStylesheet.getVariables());
MixinNodeHandler.traverse(this);
ScssStylesheet.closeVariableScope(variableScope);
} catch (Exception e) {
e.printStackTrace();
}
}
}