| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.sling.scripting.sightly.impl.plugin; |
| |
| import org.apache.sling.scripting.sightly.compiler.RuntimeFunction; |
| import org.apache.sling.scripting.sightly.compiler.commands.Conditional; |
| import org.apache.sling.scripting.sightly.compiler.commands.OutText; |
| import org.apache.sling.scripting.sightly.compiler.commands.OutputVariable; |
| import org.apache.sling.scripting.sightly.compiler.commands.VariableBinding; |
| import org.apache.sling.scripting.sightly.compiler.expression.Expression; |
| import org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode; |
| import org.apache.sling.scripting.sightly.compiler.expression.MarkupContext; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.RuntimeCall; |
| import org.apache.sling.scripting.sightly.impl.compiler.PushStream; |
| import org.apache.sling.scripting.sightly.impl.compiler.frontend.CompilerContext; |
| import org.apache.sling.scripting.sightly.impl.filter.ExpressionContext; |
| |
| public class ElementPlugin extends AbstractPlugin { |
| |
| public ElementPlugin() { |
| name = "element"; |
| } |
| |
| @Override |
| public PluginInvoke invoke(final Expression expression, final PluginCallInfo callInfo, final CompilerContext compilerContext) { |
| |
| return new DefaultPluginInvoke() { |
| |
| private final ExpressionNode node = adjustContext(compilerContext, expression, MarkupContext.ELEMENT_NAME, ExpressionContext |
| .ELEMENT).getRoot(); |
| private String tagVar = compilerContext.generateVariable("tagVar"); |
| |
| @Override |
| public void beforeElement(PushStream stream, String tagName) { |
| stream.write(new VariableBinding.Start(tagVar, node)); |
| } |
| |
| @Override |
| public void beforeTagOpen(PushStream stream) { |
| stream.write(new Conditional.Start(tagVar, true)); |
| stream.write(new OutText("<")); |
| stream.write(new OutputVariable(tagVar)); |
| stream.write(Conditional.END); |
| stream.write(new Conditional.Start(tagVar, false)); |
| } |
| |
| @Override |
| public void beforeAttributes(PushStream stream) { |
| stream.write(Conditional.END); |
| } |
| |
| @Override |
| public void beforeTagClose(PushStream stream, boolean isSelfClosing) { |
| if (!isSelfClosing) { |
| stream.write(new Conditional.Start(tagVar, true)); |
| stream.write(new OutText("</")); |
| stream.write(new OutputVariable(tagVar)); |
| stream.write(new OutText(">")); |
| stream.write(Conditional.END); |
| } |
| stream.write(new Conditional.Start(tagVar, false)); |
| } |
| |
| @Override |
| public void afterTagClose(PushStream stream, boolean isSelfClosing) { |
| stream.write(Conditional.END); |
| } |
| |
| @Override |
| public void afterElement(PushStream stream) { |
| stream.write(VariableBinding.END); |
| } |
| }; |
| |
| } |
| |
| private Expression adjustContext(CompilerContext compilerContext, Expression expression, MarkupContext markupContext, |
| ExpressionContext expressionContext) { |
| ExpressionNode root = expression.getRoot(); |
| if (root instanceof RuntimeCall) { |
| RuntimeCall runtimeCall = (RuntimeCall) root; |
| if (runtimeCall.getFunctionName().equals(RuntimeFunction.XSS)) { |
| return expression; |
| } |
| } |
| return compilerContext.adjustToContext(expression, markupContext, expressionContext); |
| } |
| } |