// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "chrome/renderer/external_host_bindings.h"

#include "base/json_writer.h"
#include "base/scoped_handle.h"
#include "base/values.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/stl_util-inl.h"

ExternalHostBindings::ExternalHostBindings() : routing_id_(0), sender_(NULL) {
  BindMethod("postMessage", &ExternalHostBindings::postMessage);
}

ExternalHostBindings::~ExternalHostBindings() {
  STLDeleteContainerPointers(properties_.begin(), properties_.end());
}

void ExternalHostBindings::postMessage(const CppArgumentList& args,
                                       CppVariant* result) {
  // We expect at least a string message identifier, and optionally take
  // an object parameter.  If we get anything else we bail.
  if (args.size() < 2)
    return;

  // Args should be strings.
  if (!args[0].isString() && !args[1].isString())
    return;

  const std::string receiver = args[0].ToString();
  const std::string message = args[1].ToString();

  sender_->Send(
      new ViewHostMsg_ExternalHostMessage(routing_id_, receiver, message));
}

void ExternalHostBindings::SetProperty(const std::string& name,
                                       const std::string& value) {
  CppVariant* cpp_value = new CppVariant;
  cpp_value->Set(value);
  BindProperty(name, cpp_value);
  properties_.push_back(cpp_value);
}