// Copyright (c) 2010 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/message_box_handler.h"

#include "app/l10n_util.h"
#include "app/message_box_flags.h"
#include "app/text_elider.h"
#include "base/i18n/rtl.h"
#include "base/utf_string_conversions.h"
#include "build/build_config.h"
#include "chrome/browser/app_modal_dialog_queue.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/extensions_service.h"
#include "chrome/browser/js_modal_dialog.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "gfx/font.h"
#include "googleurl/src/gurl.h"
#include "grit/generated_resources.h"
#include "grit/chromium_strings.h"

static std::wstring GetTitle(Profile* profile,
                             bool is_alert,
                             const GURL& frame_url) {
  ExtensionsService* extensions_service = profile->GetExtensionsService();
  if (extensions_service) {
    Extension* extension = extensions_service->GetExtensionByURL(frame_url);
    if (!extension)
      extension = extensions_service->GetExtensionByWebExtent(frame_url);

    if (extension && (extension->location() == Extension::COMPONENT)) {
      return l10n_util::GetString(IDS_PRODUCT_NAME);
    } else if (extension && !extension->name().empty()) {
      return UTF8ToWide(extension->name());
    }
  }
  if (!frame_url.has_host()) {
    return l10n_util::GetString(
        is_alert ? IDS_JAVASCRIPT_ALERT_DEFAULT_TITLE
                 : IDS_JAVASCRIPT_MESSAGEBOX_DEFAULT_TITLE);
  }

  // TODO(brettw) it should be easier than this to do the correct language
  // handling without getting the accept language from the profile.
  string16 base_address = WideToUTF16(gfx::ElideUrl(frame_url.GetOrigin(),
      gfx::Font(), 0,
      UTF8ToWide(
          profile->GetPrefs()->GetString(prefs::kAcceptLanguages))));

  // Force URL to have LTR directionality.
  base_address = base::i18n::GetDisplayStringInLTRDirectionality(
      base_address);

  return UTF16ToWide(l10n_util::GetStringFUTF16(
      is_alert ? IDS_JAVASCRIPT_ALERT_TITLE :
                 IDS_JAVASCRIPT_MESSAGEBOX_TITLE,
      base_address));
}

void RunJavascriptMessageBox(Profile* profile,
                             JavaScriptAppModalDialogDelegate* delegate,
                             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) {
  bool is_alert = dialog_flags == MessageBoxFlags::kIsJavascriptAlert;
  std::wstring title = GetTitle(profile, is_alert, frame_url);
  Singleton<AppModalDialogQueue>()->AddDialog(new JavaScriptAppModalDialog(
      delegate, title, dialog_flags, 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 JavaScriptAppModalDialog(
      tab_contents, l10n_util::GetString(IDS_BEFOREUNLOAD_MESSAGEBOX_TITLE),
      MessageBoxFlags::kIsJavascriptConfirm, message_text, std::wstring(),
      false, true, reply_msg));
}