com.intellij.ide.actions.ToggleReadOnlyAttributeAction.java Source code

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Here is the source code for com.intellij.ide.actions.ToggleReadOnlyAttributeAction.java

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/*
 * Copyright 2000-2009 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.
 */

/**
 * @author Vladimir Kondratyev
 */
package com.intellij.ide.actions;

import com.intellij.CommonBundle;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.vfs.VfsUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.io.ReadOnlyAttributeUtil;

import java.io.IOException;
import java.util.ArrayList;

public class ToggleReadOnlyAttributeAction extends AnAction implements DumbAware {
    static VirtualFile[] getFiles(DataContext dataContext) {
        ArrayList<VirtualFile> filesList = new ArrayList<VirtualFile>();
        VirtualFile[] files = PlatformDataKeys.VIRTUAL_FILE_ARRAY.getData(dataContext);
        for (int i = 0; files != null && i < files.length; i++) {
            VirtualFile file = files[i];
            if (file.isInLocalFileSystem()) {
                filesList.add(file);
            }
        }
        return VfsUtil.toVirtualFileArray(filesList);
    }

    public void update(AnActionEvent e) {
        VirtualFile[] files = getFiles(e.getDataContext());
        e.getPresentation().setEnabled(files.length > 0);
        if (files.length > 0) {
            boolean allReadOnly = true;
            boolean allWritable = true;
            for (VirtualFile file : files) {
                if (file.isWritable()) {
                    allReadOnly = false;
                } else {
                    allWritable = false;
                }
            }
            if (allReadOnly) {
                e.getPresentation().setText(files.length > 1 ? "Make Files Writable" : "Make File Writable");
            } else if (allWritable) {
                e.getPresentation().setText(files.length > 1 ? "Make Files Read-only" : "Make File Read-only");
            } else {
                e.getPresentation().setText("Toggle Read-only Attribute");
            }
        }

    }

    public void actionPerformed(final AnActionEvent e) {
        ApplicationManager.getApplication().runWriteAction(new Runnable() {
            public void run() {
                // Save all documents. We won't be able to save changes to the files that became read-only afterwards.
                FileDocumentManager.getInstance().saveAllDocuments();

                try {
                    VirtualFile[] files = getFiles(e.getDataContext());
                    for (VirtualFile file : files) {
                        ReadOnlyAttributeUtil.setReadOnlyAttribute(file, file.isWritable());
                    }
                } catch (IOException exc) {
                    Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
                    Messages.showMessageDialog(project, exc.getMessage(), CommonBundle.getErrorTitle(),
                            Messages.getErrorIcon());
                }
            }
        });
    }
}