cef/include/cef_permission_handler.h

// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
//
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#ifndef CEF_INCLUDE_CEF_PERMISSION_HANDLER_H_
#define CEF_INCLUDE_CEF_PERMISSION_HANDLER_H_
#pragma once

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

///
/// Callback interface used for asynchronous continuation of media access
/// permission requests.
///
/*--cef(source=library)--*/
class CefMediaAccessCallback : public virtual CefBaseRefCounted {
 public:
  ///
  /// Call to allow or deny media access. If this callback was initiated in
  /// response to a getUserMedia (indicated by
  /// CEF_MEDIA_PERMISSION_DEVICE_AUDIO_CAPTURE and/or
  /// CEF_MEDIA_PERMISSION_DEVICE_VIDEO_CAPTURE being set) then
  /// |allowed_permissions| must match |required_permissions| passed to
  /// OnRequestMediaAccessPermission.
  ///
  /*--cef(capi_name=cont)--*/
  virtual void Continue(uint32_t allowed_permissions) = 0;

  ///
  /// Cancel the media access request.
  ///
  /*--cef()--*/
  virtual void Cancel() = 0;
};

///
/// Callback interface used for asynchronous continuation of permission prompts.
///
/*--cef(source=library)--*/
class CefPermissionPromptCallback : public virtual CefBaseRefCounted {
 public:
  ///
  /// Complete the permissions request with the specified |result|.
  ///
  /*--cef(capi_name=cont)--*/
  virtual void Continue(cef_permission_request_result_t result) = 0;
};

///
/// Implement this interface to handle events related to permission requests.
/// The methods of this class will be called on the browser process UI thread.
///
/*--cef(source=client)--*/
class CefPermissionHandler : public virtual CefBaseRefCounted {
 public:
  ///
  /// Called when a page requests permission to access media.
  /// |requesting_origin| is the URL origin requesting permission.
  /// |requested_permissions| is a combination of values from
  /// cef_media_access_permission_types_t that represent the requested
  /// permissions. Return true and call CefMediaAccessCallback methods either in
  /// this method or at a later time to continue or cancel the request. Return
  /// false to proceed with default handling. With the Chrome runtime, default
  /// handling will display the permission request UI. With the Alloy runtime,
  /// default handling will deny the request. This method will not be called if
  /// the "--enable-media-stream" command-line switch is used to grant all
  /// permissions.
  ///
  /*--cef()--*/
  virtual bool OnRequestMediaAccessPermission(
      CefRefPtr<CefBrowser> browser,
      CefRefPtr<CefFrame> frame,
      const CefString& requesting_origin,
      uint32_t requested_permissions,
      CefRefPtr<CefMediaAccessCallback> callback) {
    return false;
  }

  ///
  /// Called when a page should show a permission prompt. |prompt_id| uniquely
  /// identifies the prompt. |requesting_origin| is the URL origin requesting
  /// permission. |requested_permissions| is a combination of values from
  /// cef_permission_request_types_t that represent the requested permissions.
  /// Return true and call CefPermissionPromptCallback::Continue either in this
  /// method or at a later time to continue or cancel the request. Return false
  /// to proceed with default handling. With the Chrome runtime, default
  /// handling will display the permission prompt UI. With the Alloy runtime,
  /// default handling is CEF_PERMISSION_RESULT_IGNORE.
  ///
  /*--cef()--*/
  virtual bool OnShowPermissionPrompt(
      CefRefPtr<CefBrowser> browser,
      uint64_t prompt_id,
      const CefString& requesting_origin,
      uint32_t requested_permissions,
      CefRefPtr<CefPermissionPromptCallback> callback) {
    return false;
  }

  ///
  /// Called when a permission prompt handled via OnShowPermissionPrompt is
  /// dismissed. |prompt_id| will match the value that was passed to
  /// OnShowPermissionPrompt. |result| will be the value passed to
  /// CefPermissionPromptCallback::Continue or CEF_PERMISSION_RESULT_IGNORE if
  /// the dialog was dismissed for other reasons such as navigation, browser
  /// closure, etc. This method will not be called if OnShowPermissionPrompt
  /// returned false for |prompt_id|.
  ///
  /*--cef()--*/
  virtual void OnDismissPermissionPrompt(
      CefRefPtr<CefBrowser> browser,
      uint64_t prompt_id,
      cef_permission_request_result_t result) {}
};

#endif  // CEF_INCLUDE_CEF_PERMISSION_HANDLER_H_