cef/include/cef_permission_handler.h

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// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#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_