// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/jsmessage_box_handler.h"

#include "app/l10n_util.h"
#include "app/message_box_flags.h"
#include "build/build_config.h"
#include "chrome/browser/app_modal_dialog_queue.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "googleurl/src/gurl.h"
#include "grit/generated_resources.h"

namespace {

const size_t kMaxReasonableTextLength = 2048;

// In some platforms, the underlying processing of humongous strings takes too
// long and thus make the UI thread unresponsive.
std::wstring MakeTextSafe(const std::wstring& text) {
  if (text.size() > kMaxReasonableTextLength)
    return text.substr(0, kMaxReasonableTextLength) + L"\x2026";
  return text;
}

}  // namespace

void RunJavascriptMessageBox(JavaScriptMessageBoxClient* client,
                             const GURL& frame_url,
                             int dialog_flags,
                             const std::wstring& message_text,
                             const std::wstring& default_prompt_text,
                             bool display_suppress_checkbox,
                             IPC::Message* reply_msg) {
  std::wstring title = client->GetMessageBoxTitle(frame_url,
      (dialog_flags == MessageBoxFlags::kIsJavascriptAlert));
  Singleton<AppModalDialogQueue>()->AddDialog(
      new AppModalDialog(client, title,
                         dialog_flags, MakeTextSafe(message_text),
                         default_prompt_text, display_suppress_checkbox,
                         false, reply_msg));
}

void RunBeforeUnloadDialog(TabContents* tab_contents,
                           const std::wstring& message_text,
                           IPC::Message* reply_msg) {
  std::wstring full_message =
      message_text + L"\n\n" +
      l10n_util::GetString(IDS_BEFOREUNLOAD_MESSAGEBOX_FOOTER);
  Singleton<AppModalDialogQueue>()->AddDialog(new AppModalDialog(
      tab_contents, l10n_util::GetString(IDS_BEFOREUNLOAD_MESSAGEBOX_TITLE),
      MessageBoxFlags::kIsJavascriptConfirm, MakeTextSafe(message_text),
      std::wstring(), false, true, reply_msg));
}