// Copyright (c) 2012 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.

#ifndef COMPONENTS_APP_MODAL_JAVASCRIPT_APP_MODAL_DIALOG_H_
#define COMPONENTS_APP_MODAL_JAVASCRIPT_APP_MODAL_DIALOG_H_

#include <map>
#include <string>

#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "components/app_modal/app_modal_dialog.h"
#include "content/public/browser/javascript_dialog_manager.h"

namespace app_modal {

// Extra data for JavaScript dialogs to add Chrome-only features.
class ChromeJavaScriptDialogExtraData {
 public:
  ChromeJavaScriptDialogExtraData();

  // True if the user has already seen a JavaScript dialog from the origin.
  bool has_already_shown_a_dialog_;

  // True if the user has decided to block future JavaScript dialogs.
  bool suppress_javascript_messages_;
};

// A controller + model class for JavaScript alert, confirm, prompt, and
// onbeforeunload dialog boxes.
class JavaScriptAppModalDialog : public AppModalDialog {
 public:
  typedef std::map<std::string, ChromeJavaScriptDialogExtraData> ExtraDataMap;

  JavaScriptAppModalDialog(
      content::WebContents* web_contents,
      ExtraDataMap* extra_data_map,
      const base::string16& title,
      content::JavaScriptMessageType javascript_message_type,
      const base::string16& message_text,
      const base::string16& default_prompt_text,
      bool display_suppress_checkbox,
      bool is_before_unload_dialog,
      bool is_reload,
      const content::JavaScriptDialogManager::DialogClosedCallback& callback);
  ~JavaScriptAppModalDialog() override;

  // Overridden from AppModalDialog:
  NativeAppModalDialog* CreateNativeDialog() override;
  bool IsJavaScriptModalDialog() override;
  void Invalidate() override;

  // Callbacks from NativeDialog when the user accepts or cancels the dialog.
  void OnCancel(bool suppress_js_messages);
  void OnAccept(const base::string16& prompt_text, bool suppress_js_messages);

  // NOTE: This is only called under Views, and should be removed. Any critical
  // work should be done in OnCancel or OnAccept. See crbug.com/63732 for more.
  void OnClose();

  // Used only for testing. The dialog will use the given text when notifying
  // its delegate instead of whatever the UI reports.
  void SetOverridePromptText(const base::string16& prompt_text);

  // The serialized form of the origin of the last committed URL in
  // |web_contents_|. See |extra_data_map_|.
  static std::string GetSerializedOriginForWebContents(
      content::WebContents* contents);

  // Accessors
  content::JavaScriptMessageType javascript_message_type() const {
    return javascript_message_type_;
  }
  base::string16 message_text() const { return message_text_; }
  base::string16 default_prompt_text() const { return default_prompt_text_; }
  bool display_suppress_checkbox() const { return display_suppress_checkbox_; }
  bool is_before_unload_dialog() const { return is_before_unload_dialog_; }
  bool is_reload() const { return is_reload_; }

 private:
  // Notifies the delegate with the result of the dialog.
  void NotifyDelegate(bool success, const base::string16& prompt_text,
                      bool suppress_js_messages);

  // A map of extra Chrome-only data associated with the delegate_. The keys
  // come from |GetSerializedOriginForWebContents|.
  ExtraDataMap* extra_data_map_;

  // Information about the message box is held in the following variables.
  const content::JavaScriptMessageType javascript_message_type_;
  base::string16 message_text_;
  base::string16 default_prompt_text_;
  bool display_suppress_checkbox_;
  bool is_before_unload_dialog_;
  bool is_reload_;

  content::JavaScriptDialogManager::DialogClosedCallback callback_;

  // Used only for testing. Specifies alternative prompt text that should be
  // used when notifying the delegate, if |use_override_prompt_text_| is true.
  base::string16 override_prompt_text_;
  bool use_override_prompt_text_;

  DISALLOW_COPY_AND_ASSIGN(JavaScriptAppModalDialog);
};

}  // namespace app_modal

#endif  // COMPONENTS_APP_MODAL_JAVASCRIPT_APP_MODAL_DIALOG_H_