cef/include/capi/cef_jsdialog_handler_capi.h

// Copyright (c) 2023 Marshall A. Greenblatt. All rights reserved.
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#ifndef CEF_INCLUDE_CAPI_CEF_JSDIALOG_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_JSDIALOG_HANDLER_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_browser_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

///
/// Callback structure used for asynchronous continuation of JavaScript dialog
/// requests.
///
typedef struct _cef_jsdialog_callback_t {
  ///
  /// Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  /// Continue the JS dialog request. Set |success| to true (1) if the OK button
  /// was pressed. The |user_input| value should be specified for prompt
  /// dialogs.
  ///
  void(CEF_CALLBACK* cont)(struct _cef_jsdialog_callback_t* self,
                           int success,
                           const cef_string_t* user_input);
} cef_jsdialog_callback_t;

///
/// Implement this structure to handle events related to JavaScript dialogs. The
/// functions of this structure will be called on the UI thread.
///
typedef struct _cef_jsdialog_handler_t {
  ///
  /// Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  /// Called to run a JavaScript dialog. If |origin_url| is non-NULL 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 (1) and
  /// return false (0) 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 (0) and return false (0)
  /// 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 (1) 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.
  ///
  int(CEF_CALLBACK* on_jsdialog)(struct _cef_jsdialog_handler_t* self,
                                 struct _cef_browser_t* browser,
                                 const cef_string_t* origin_url,
                                 cef_jsdialog_type_t dialog_type,
                                 const cef_string_t* message_text,
                                 const cef_string_t* default_prompt_text,
                                 struct _cef_jsdialog_callback_t* callback,
                                 int* suppress_message);

  ///
  /// Called to run a dialog asking the user if they want to leave a page.
  /// Return false (0) to use the default dialog implementation. Return true (1)
  /// 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.
  ///
  int(CEF_CALLBACK* on_before_unload_dialog)(
      struct _cef_jsdialog_handler_t* self,
      struct _cef_browser_t* browser,
      const cef_string_t* message_text,
      int is_reload,
      struct _cef_jsdialog_callback_t* callback);

  ///
  /// 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.
  ///
  void(CEF_CALLBACK* on_reset_dialog_state)(
      struct _cef_jsdialog_handler_t* self,
      struct _cef_browser_t* browser);

  ///
  /// Called when the dialog is closed.
  ///
  void(CEF_CALLBACK* on_dialog_closed)(struct _cef_jsdialog_handler_t* self,
                                       struct _cef_browser_t* browser);
} cef_jsdialog_handler_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_JSDIALOG_HANDLER_CAPI_H_