/*
* Copyright 2003-2011 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 jetbrains.mps.ide.projectPane.fileSystem.actions.providers;
import com.intellij.ide.CopyPasteManagerEx;
import com.intellij.ide.PasteProvider;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.fileTypes.FileTypeManager;
import com.intellij.openapi.vfs.VirtualFile;
import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
public class FilePanePasteProvider implements PasteProvider {
private final static Logger LOG = LogManager.getLogger(FilePanePasteProvider.class);
@Override
public void performPaste(DataContext dataContext) {
CopyPasteFilesData data = getData(dataContext);
if (data != null) {
paste(data, getDir(dataContext));
}
}
@Nullable
private CopyPasteFilesData getData(DataContext dataContext) {
Transferable content = CopyPasteManagerEx.getInstanceEx().getContents();
if (content == null) return null;
CopyPasteFilesData files = null;
if (content.isDataFlavorSupported(VirtualFileTransferable.VIRTUAL_FILE_DATA_FLAVOR)) {
try {
files = getData((String[]) content.getTransferData(VirtualFileTransferable.VIRTUAL_FILE_DATA_FLAVOR));
if (files == null || !files.hasAnythingToDo()) {
return null;
}
} catch (UnsupportedFlavorException e) {
LOG.error("Exception", e);
return null;
} catch (IOException e) {
LOG.error("Exception", e);
return null;
}
}
return files;
}
private CopyPasteFilesData getData(String[] strings) {
if (strings == null) return null;
return new CopyPasteFilesData(strings);
}
private VirtualFile getDir(DataContext dataContext) {
VirtualFile file = PlatformDataKeys.VIRTUAL_FILE.getData(dataContext);
if (file == null || !file.isDirectory()) return null;
return file;
}
private void paste(@NotNull CopyPasteFilesData data, @NotNull VirtualFile basedir) {
for (VirtualFile f : data.getFiles()) {
try {
if (!FileTypeManager.getInstance().isFileIgnored(f.getName())) {
if (!data.isCut()) {
f.copy(this, basedir, f.getName());
} else {
f.move(this, basedir);
}
}
} catch (IOException e) {
LOG.error("Error while pasting " + f + "\n", e);
}
}
}
@Override
public boolean isPastePossible(DataContext dataContext) {
return (getDir(dataContext) != null) && (getData(dataContext) != null);
}
@Override
public boolean isPasteEnabled(DataContext dataContext) {
return (getDir(dataContext) != null) && (getData(dataContext) != null);
}
}