EOFAction.java

/*
 * Copyright 2000-2015 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.execution.actions;

import com.intellij.execution.process.ProcessHandler;
import com.intellij.execution.ui.ConsoleView;
import com.intellij.execution.ui.ConsoleViewContentType;
import com.intellij.execution.ui.RunContentDescriptor;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.project.DumbAwareAction;
import org.jetbrains.annotations.NonNls;

import java.io.IOException;
import java.io.OutputStream;

/**
 * @author egor
 */
public class EOFAction extends DumbAwareAction implements AnAction.TransparentUpdate {
  @NonNls public static final String ACTION_ID = "SendEOF";

  @Override
  public void update(AnActionEvent e) {
    RunContentDescriptor descriptor = StopAction.getRecentlyStartedContentDescriptor(e.getDataContext());
    ProcessHandler handler = descriptor != null ? descriptor.getProcessHandler() : null;
    e.getPresentation().setEnabledAndVisible(e.getData(LangDataKeys.CONSOLE_VIEW) != null
                                             && e.getData(CommonDataKeys.EDITOR) != null
                                             && handler != null
                                             && !handler.isProcessTerminated());
  }

  @Override
  public void actionPerformed(AnActionEvent e) {
    RunContentDescriptor descriptor = StopAction.getRecentlyStartedContentDescriptor(e.getDataContext());
    ProcessHandler activeProcessHandler = descriptor != null ? descriptor.getProcessHandler() : null;
    if (activeProcessHandler == null || activeProcessHandler.isProcessTerminated()) return;

    try {
      OutputStream input = activeProcessHandler.getProcessInput();
      if (input != null) {
        ConsoleView console = e.getData(LangDataKeys.CONSOLE_VIEW);
        if (console != null) {
          console.print("^D\n", ConsoleViewContentType.SYSTEM_OUTPUT);
        }
        input.close();
      }
    }
    catch (IOException ignored) {
    }
  }
}