gecko/ipc/testshell/TestShellChild.cpp

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla IPCShell.
 *
 * The Initial Developer of the Original Code is
 *   Ben Turner <bent.mozilla@gmail.com>.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * the provisions above, a recipient may use your version of this file under
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 * ***** END LICENSE BLOCK ***** */

#include "TestShellChild.h"

#include "XPCShellEnvironment.h"

using mozilla::ipc::TestShellChild;
using mozilla::ipc::TestShellCommandProtocolChild;
using mozilla::ipc::XPCShellEnvironment;

TestShellChild::TestShellChild()
: mXPCShell(nsnull)
{
  XPCShellEnvironment* env = XPCShellEnvironment::CreateEnvironment();
  if (env) {
    if (env->DefineIPCCommands(this)) {
      mXPCShell = env;
    }
    else {
      XPCShellEnvironment::DestroyEnvironment(env);
    }
  }
}

TestShellChild::~TestShellChild()
{
  if (mXPCShell) {
    XPCShellEnvironment::DestroyEnvironment(mXPCShell);
  }
}

nsresult
TestShellChild::RecvExecuteCommand(const nsString& aCommand)
{
  if (mXPCShell->IsQuitting()) {
    NS_WARNING("Commands sent after quit command issued!");
    return NS_ERROR_UNEXPECTED;
  }

  return mXPCShell->EvaluateString(aCommand) ? NS_OK : NS_ERROR_FAILURE;
}

TestShellCommandProtocolChild*
TestShellChild::TestShellCommandConstructor(const nsString& aCommand)
{
  return new TestShellCommandProtocolChild();
}

nsresult
TestShellChild::TestShellCommandDestructor(TestShellCommandProtocolChild* aCommand,
                                           const nsString& aResponse)
{
  NS_ENSURE_ARG_POINTER(aCommand);
  delete aCommand;
  return NS_OK;
}

nsresult
TestShellChild::RecvTestShellCommandConstructor(TestShellCommandProtocolChild* aActor,
                                                const nsString& aCommand)
{
  NS_ASSERTION(aActor, "Shouldn't be null!");

  if (mXPCShell->IsQuitting()) {
    NS_WARNING("Commands sent after quit command issued!");
    return NS_ERROR_UNEXPECTED;
  }

  nsString response;
  if (!mXPCShell->EvaluateString(aCommand, &response)) {
    return NS_ERROR_FAILURE;
  }

  nsresult rv = SendTestShellCommandDestructor(aActor, response);
  NS_ENSURE_SUCCESS(rv, rv);

  return NS_OK;
}