/*
 * Copyright 2000-2013 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.jetbrains.python.psi.search;

import com.intellij.openapi.application.AccessToken;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.QueryExecutorBase;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReference;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.SearchScope;
import com.intellij.psi.search.UsageSearchContext;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.util.Processor;
import com.jetbrains.python.PythonFileType;
import com.jetbrains.python.psi.PyElement;
import com.jetbrains.python.psi.PyUtil;
import org.jetbrains.annotations.NotNull;

/**
 * @author traff
 */
public class PyStringReferenceSearch extends QueryExecutorBase<PsiReference, ReferencesSearch.SearchParameters> {
  public void processQuery(@NotNull final ReferencesSearch.SearchParameters params,
                           @NotNull final Processor<PsiReference> consumer) {
    final PsiElement element = params.getElementToSearch();
    if (!(element instanceof PyElement) && !(element instanceof PsiDirectory)) {
      return;
    }

    AccessToken token = ApplicationManager.getApplication().acquireReadActionLock();
    String name;
    SearchScope searchScope;
    try {
      searchScope = params.getEffectiveSearchScope();
      if (searchScope instanceof GlobalSearchScope) {
        searchScope = GlobalSearchScope.getScopeRestrictedByFileTypes((GlobalSearchScope)searchScope, PythonFileType.INSTANCE);
      }

      name = PyUtil.computeElementNameForStringSearch(element);
    }
    finally {
      token.finish();
    }

    if (StringUtil.isEmpty(name)) {
      return;
    }
    params.getOptimizer().searchWord(name, searchScope, UsageSearchContext.IN_STRINGS, true, element);
  }
}

@@ -640,121 +640,8 @@
 h;%0A%0A
-import com.intellij.openapi.application.AccessToken;%0Aimport com.intellij.openapi.application.ApplicationManager;%0A
 impo
@@ -1405,16 +1405,76 @@
 ters%3E %7B%0A
+%0A  public PyStringReferenceSearch() %7B%0A    super(true);%0A  %7D%0A%0A
   public
@@ -1797,150 +1797,19 @@
     
-AccessToken token = ApplicationManager.getApplication().acquireReadActionLock();%0A    String name;%0A    SearchScope searchScope;%0A    try %7B%0A     
+SearchScope
  sea
@@ -1853,18 +1853,16 @@
 cope();%0A
-  
     if (
@@ -1901,26 +1901,24 @@
 rchScope) %7B%0A
-  
       search
@@ -2039,18 +2039,21 @@
     
-  
 %7D%0A%0A    
- 
+String
  nam
@@ -2110,56 +2110,8 @@
 nt);
-%0A    %7D%0A    finally %7B%0A      token.finish();%0A    %7D
 %0A%0A  

add read action (EA-51111)