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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* 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.intellij.psi.impl.source.resolve.reference;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.patterns.ElementPattern;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReferenceProvider;
import com.intellij.psi.PsiReferenceService;
import com.intellij.util.ProcessingContext;
import com.intellij.util.SmartList;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.List;
/**
* Created by IntelliJ IDEA.
* User: ik
* Date: 01.04.2003
* Time: 16:52:28
* To change this template use Options | File Templates.
*/
public class SimpleProviderBinding<Provider> implements ProviderBinding<Provider> {
private final List<ProviderInfo<Provider, ElementPattern>> myProviderPairs = new SmartList<ProviderInfo<Provider, ElementPattern>>();
public void registerProvider(Provider provider, ElementPattern pattern, double priority) {
myProviderPairs.add(new ProviderInfo<Provider, ElementPattern>(provider, pattern, priority));
}
@Override
public void addAcceptableReferenceProviders(@NotNull PsiElement position,
@NotNull List<ProviderInfo<Provider, ProcessingContext>> list,
@NotNull PsiReferenceService.Hints hints) {
for (ProviderInfo<Provider, ElementPattern> trinity : myProviderPairs) {
if (hints != PsiReferenceService.Hints.NO_HINTS && !((PsiReferenceProvider)trinity.provider).acceptsHints(position, hints)) {
continue;
}
final ProcessingContext context = new ProcessingContext();
if (hints != PsiReferenceService.Hints.NO_HINTS) {
context.put(PsiReferenceService.HINTS, hints);
}
boolean suitable = false;
try {
suitable = trinity.processingContext.accepts(position, context);
}
catch (IndexNotReadyException ignored) {
}
if (suitable) {
list.add(new ProviderInfo<Provider, ProcessingContext>(trinity.provider, context, trinity.priority));
}
}
}
@Override
public void unregisterProvider(@NotNull final Provider provider) {
for (final ProviderInfo<Provider, ElementPattern> trinity : new ArrayList<ProviderInfo<Provider, ElementPattern>>(myProviderPairs)) {
if (trinity.provider.equals(provider)) {
myProviderPairs.remove(trinity);
}
}
}
}
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