cef/include/cef_jsdialog_handler.h

// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
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#ifndef CEF_INCLUDE_CEF_JSDIALOG_HANDLER_H_
#define CEF_INCLUDE_CEF_JSDIALOG_HANDLER_H_
#pragma once

#include "include/cef_base.h"
#include "include/cef_browser.h"

///
/// Callback interface used for asynchronous continuation of JavaScript dialog
/// requests.
///
/*--cef(source=library)--*/
class CefJSDialogCallback : public virtual CefBaseRefCounted {
 public:
  ///
  /// Continue the JS dialog request. Set |success| to true if the OK button was
  /// pressed. The |user_input| value should be specified for prompt dialogs.
  ///
  /*--cef(capi_name=cont,optional_param=user_input)--*/
  virtual void Continue(bool success, const CefString& user_input) = 0;
};

///
/// Implement this interface to handle events related to JavaScript dialogs. The
/// methods of this class will be called on the UI thread.
///
/*--cef(source=client)--*/
class CefJSDialogHandler : public virtual CefBaseRefCounted {
 public:
  typedef cef_jsdialog_type_t JSDialogType;

  ///
  /// Called to run a JavaScript dialog. If |origin_url| is non-empty it can be
  /// passed to the CefFormatUrlForSecurityDisplay function to retrieve a secure
  /// and user-friendly display string. The |default_prompt_text| value will be
  /// specified for prompt dialogs only. Set |suppress_message| to true and
  /// return false to suppress the message (suppressing messages is preferable
  /// to immediately executing the callback as this is used to detect presumably
  /// malicious behavior like spamming alert messages in onbeforeunload). Set
  /// |suppress_message| to false and return false to use the default
  /// implementation (the default implementation will show one modal dialog at a
  /// time and suppress any additional dialog requests until the displayed
  /// dialog is dismissed). Return true if the application will use a custom
  /// dialog or if the callback has been executed immediately. Custom dialogs
  /// may be either modal or modeless. If a custom dialog is used the
  /// application must execute |callback| once the custom dialog is dismissed.
  ///
  /*--cef(optional_param=origin_url,optional_param=accept_lang,
          optional_param=message_text,optional_param=default_prompt_text)--*/
  virtual bool OnJSDialog(CefRefPtr<CefBrowser> browser,
                          const CefString& origin_url,
                          JSDialogType dialog_type,
                          const CefString& message_text,
                          const CefString& default_prompt_text,
                          CefRefPtr<CefJSDialogCallback> callback,
                          bool& suppress_message) {
    return false;
  }

  ///
  /// Called to run a dialog asking the user if they want to leave a page.
  /// Return false to use the default dialog implementation. Return true if the
  /// application will use a custom dialog or if the callback has been executed
  /// immediately. Custom dialogs may be either modal or modeless. If a custom
  /// dialog is used the application must execute |callback| once the custom
  /// dialog is dismissed.
  ///
  /*--cef(optional_param=message_text)--*/
  virtual bool OnBeforeUnloadDialog(CefRefPtr<CefBrowser> browser,
                                    const CefString& message_text,
                                    bool is_reload,
                                    CefRefPtr<CefJSDialogCallback> callback) {
    return false;
  }

  ///
  /// Called to cancel any pending dialogs and reset any saved dialog state.
  /// Will be called due to events like page navigation irregardless of whether
  /// any dialogs are currently pending.
  ///
  /*--cef()--*/
  virtual void OnResetDialogState(CefRefPtr<CefBrowser> browser) {}

  ///
  /// Called when the dialog is closed.
  ///
  /*--cef()--*/
  virtual void OnDialogClosed(CefRefPtr<CefBrowser> browser) {}
};

#endif  // CEF_INCLUDE_CEF_JSDIALOG_HANDLER_H_