From 2a635576fccc74cf2bb0841d8d2cf553b01dd884 Mon Sep 17 00:00:00 2001
From: Dmitry Avdeev <dmitry.avdeev@jetbrains.com>
Date: Mon, 28 Mar 2016 13:56:24 +0300
Subject: [PATCH] IDEA-153402 optimize imports does nothing in new classes

---
 .../src/META-INF/XmlPlugin.xml                |  1 +
 .../JspxIncludePathReferenceProvider.java     | 92 +++++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 xml/impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JspxIncludePathReferenceProvider.java

diff --git a/platform/platform-resources/src/META-INF/XmlPlugin.xml b/platform/platform-resources/src/META-INF/XmlPlugin.xml
index ab46a7c17c77..1a244d0e4dcc 100644
--- a/platform/platform-resources/src/META-INF/XmlPlugin.xml
+++ b/platform/platform-resources/src/META-INF/XmlPlugin.xml
@@ -313,6 +313,7 @@
     <completionData fileType="XHTML" className="com.intellij.codeInsight.completion.XHtmlCompletionData"/>
     <completionData fileType="DTD" className="com.intellij.codeInsight.completion.DtdCompletionData"/>
 
+    <referenceProviderType key="Path References Provider" implementationClass="com.intellij.psi.impl.source.resolve.reference.impl.providers.JspxIncludePathReferenceProvider"/>
     <psi.referenceContributor implementation="com.intellij.xml.util.XmlReferenceContributor"/>
     <!--<pom.declarationSearcher implementation="com.intellij.psi.impl.source.resolve.reference.impl.providers.IdDeclarationSearcher"/>-->
     <anchorReferenceProvider implementation="com.intellij.xml.util.AnchorPathReferenceProvider"/>
diff --git a/xml/impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JspxIncludePathReferenceProvider.java b/xml/impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JspxIncludePathReferenceProvider.java
new file mode 100644
index 000000000000..2f8df4404c20
--- /dev/null
+++ b/xml/impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JspxIncludePathReferenceProvider.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2000-2016 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.impl.providers;
+
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiReference;
+import com.intellij.psi.PsiReferenceProvider;
+import com.intellij.psi.xml.XmlAttributeValue;
+import com.intellij.psi.xml.XmlTag;
+import com.intellij.psi.xml.XmlTagValue;
+import com.intellij.util.ProcessingContext;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Map;
+
+/**
+ * @author ven
+ */
+public class JspxIncludePathReferenceProvider extends PsiReferenceProvider implements CustomizableReferenceProvider {
+  @Nullable private Map<CustomizationKey, Object> myOptions;
+
+  @Override
+  @NotNull
+  public PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull final ProcessingContext context) {
+    if (element instanceof XmlAttributeValue) {
+      final XmlAttributeValue attributeValue = ((XmlAttributeValue)element);
+
+      String valueString = attributeValue.getValue();
+      if(valueString.indexOf('?') >= 0)
+        return getReferencesByString(valueString.substring(0, valueString.indexOf('?')), attributeValue, 1);
+      return getReferencesByString(valueString, attributeValue, 1);
+    } else if (element instanceof XmlTag) {
+      final XmlTag tag = ((XmlTag)element);
+
+      final XmlTagValue value = tag.getValue();
+      final String text = value.getText();
+      String trimmedText = text.trim();
+
+      return getReferencesByString(
+        trimmedText,
+        tag, value.getTextRange().getStartOffset() + text.indexOf(trimmedText) - element.getTextOffset()
+      );
+    }
+    return PsiReference.EMPTY_ARRAY;
+  }
+
+  @NotNull
+  private PsiReference[] getReferencesByString(String str, @NotNull PsiElement position, int offsetInPosition) {
+    return getFileReferencesFromString(str, position, offsetInPosition, this);
+  }
+
+  public static PsiReference[] getFileReferencesFromString(final String str, @NotNull PsiElement position, final int offsetInPosition,
+                                                           PsiReferenceProvider provider) {
+    return getFileReferenceSet(str, position, offsetInPosition, provider).getAllReferences();
+  }
+
+  public static FileReferenceSet getFileReferenceSet(final String str, @NotNull PsiElement position,
+                                                     final int offsetInPosition,
+                                                     final PsiReferenceProvider provider) {
+    return new FileReferenceSet(str, position, offsetInPosition, provider, true) {
+      @Override
+      protected boolean useIncludingFileAsContext() {
+        return false;
+      }
+    };
+  }
+
+  @Override
+  public void setOptions(@Nullable Map<CustomizationKey, Object> options) {
+    myOptions = options;
+  }
+
+  @Override
+  @Nullable
+  public Map<CustomizationKey, Object> getOptions() {
+    return myOptions;
+  }
+}