Merge "Merge remote-tracking branch 'aosp/upstream-master' into merge"

1 files changed, 40 insertions, 0 deletions

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/highlighting/HighlightUsagesHandlerFactoryBase.java b/platform/lang-impl/src/com/intellij/codeInsight/highlighting/HighlightUsagesHandlerFactoryBase.java
new file mode 100644
index 000000000000..83c6cf35c57e
--- /dev/null
+++ b/platform/lang-impl/src/com/intellij/codeInsight/highlighting/HighlightUsagesHandlerFactoryBase.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2000-2014 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.codeInsight.highlighting;
+
+import com.intellij.codeInsight.TargetElementUtilBase;
+import com.intellij.openapi.editor.Editor;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public abstract class HighlightUsagesHandlerFactoryBase implements HighlightUsagesHandlerFactory {
+  @Nullable
+  @Override
+  public final HighlightUsagesHandlerBase createHighlightUsagesHandler(Editor editor, PsiFile file) {
+    int offset = TargetElementUtilBase.adjustOffset(file, editor.getDocument(), editor.getCaretModel().getOffset());
+    PsiElement target = file.findElementAt(offset);
+    if (target == null) return null;
+    return createHighlightUsagesHandler(editor, file, target);
+  }
+
+  @Nullable
+  public abstract HighlightUsagesHandlerBase createHighlightUsagesHandler(@NotNull Editor editor, @NotNull PsiFile file, @NotNull PsiElement target);
+}