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/*
* 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.mock;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileEditor.impl.LoadTextUtil;
import com.intellij.openapi.fileTypes.BinaryFileTypeDecompilers;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.reference.SoftReference;
import com.intellij.util.Function;
import com.intellij.util.containers.WeakFactoryMap;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.lang.ref.Reference;
public class MockFileDocumentManagerImpl extends FileDocumentManager {
private static final Key<VirtualFile> MOCK_VIRTUAL_FILE_KEY = Key.create("MockVirtualFile");
private final Function<CharSequence, Document> myFactory;
@Nullable private final Key<Reference<Document>> myCachedDocumentKey;
public MockFileDocumentManagerImpl(Function<CharSequence, Document> factory, @Nullable Key<Reference<Document>> cachedDocumentKey) {
myFactory = factory;
myCachedDocumentKey = cachedDocumentKey;
}
private final WeakFactoryMap<VirtualFile,Document> myDocuments = new WeakFactoryMap<VirtualFile, Document>() {
@Override
protected Document create(final VirtualFile key) {
if (key.isDirectory() || isBinaryWithoutDecompiler(key)) return null;
CharSequence text = LoadTextUtil.loadText(key);
final Document document = myFactory.fun(text);
document.putUserData(MOCK_VIRTUAL_FILE_KEY, key);
return document;
}
private boolean isBinaryWithoutDecompiler(VirtualFile file) {
final FileType ft = file.getFileType();
return ft.isBinary() && BinaryFileTypeDecompilers.INSTANCE.forFileType(ft) == null;
}
};
@Override
public Document getDocument(@NotNull VirtualFile file) {
return myDocuments.get(file);
}
@Override
public Document getCachedDocument(@NotNull VirtualFile file) {
if (myCachedDocumentKey != null) {
Reference<Document> reference = file.getUserData(myCachedDocumentKey);
return SoftReference.dereference(reference);
}
return null;
}
@Override
public VirtualFile getFile(@NotNull Document document) {
return document.getUserData(MOCK_VIRTUAL_FILE_KEY);
}
@Override
public void saveAllDocuments() {
}
@Override
public void saveDocument(@NotNull Document document) {
}
@Override
public void saveDocumentAsIs(@NotNull Document document) {
}
@Override
@NotNull
public Document[] getUnsavedDocuments() {
return new Document[0];
}
@Override
public boolean isDocumentUnsaved(@NotNull Document document) {
return false;
}
@Override
public boolean isFileModified(@NotNull VirtualFile file) {
return false;
}
@Override
public void reloadFromDisk(@NotNull Document document) {
}
@Override
public void reloadFiles(@NotNull final VirtualFile... files) {
}
@Override
@NotNull
public String getLineSeparator(VirtualFile file, Project project) {
return "";
}
@Override
public boolean requestWriting(@NotNull Document document, @Nullable Project project) {
return true;
}
}
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