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CEF4Delphi/source/uCEFMediaSinkDeviceInfoCallback.pas
2020-07-15 14:56:41 +02:00

178 lines
5.8 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
// browser in Delphi applications.
//
// The original license of DCEF3 still applies to CEF4Delphi.
//
// For more information about CEF4Delphi visit :
// https://www.briskbard.com/index.php?lang=en&pageid=cef
//
// Copyright © 2020 Salvador Diaz Fau. All rights reserved.
//
// ************************************************************************
// ************ vvvv Original license and comments below vvvv *************
// ************************************************************************
(*
* Delphi Chromium Embedded 3
*
* Usage allowed under the restrictions of the Lesser GNU General Public License
* or alternatively the restrictions of the Mozilla Public License 1.1
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
* Web site : http://www.progdigy.com
* Repository : http://code.google.com/p/delphichromiumembedded/
* Group : http://groups.google.com/group/delphichromiumembedded
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
*)
unit uCEFMediaSinkDeviceInfoCallback;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefMediaSinkDeviceInfoCallbackOwn = class(TCefBaseRefCountedOwn, ICefMediaSinkDeviceInfoCallback)
protected
procedure OnMediaSinkDeviceInfo(const ip_address: ustring; port: integer; const model_name: ustring); virtual; abstract;
public
constructor Create; virtual;
end;
TCefFastMediaSinkDeviceInfoCallback = class(TCefMediaSinkDeviceInfoCallbackOwn)
protected
FCallback: TCefMediaSinkDeviceInfoCallbackProc;
procedure OnMediaSinkDeviceInfo(const ip_address: ustring; port: integer; const model_name: ustring); override;
public
constructor Create(const callback: TCefMediaSinkDeviceInfoCallbackProc); reintroduce;
destructor Destroy; override;
end;
TCefCustomMediaSinkDeviceInfoCallback = class(TCefMediaSinkDeviceInfoCallbackOwn)
protected
FEvents : Pointer;
procedure OnMediaSinkDeviceInfo(const ip_address: ustring; port: integer; const model_name: ustring); override;
public
constructor Create(const aEvents : IChromiumEvents); reintroduce;
destructor Destroy; override;
end;
implementation
uses
{$IFDEF DELPHI16_UP}
System.SysUtils,
{$ELSE}
SysUtils,
{$ENDIF}
uCEFMiscFunctions, uCEFLibFunctions, uCEFMediaSink;
procedure cef_media_sink_device_info_callback_on_media_sink_device_info(self : PCefMediaSinkDeviceInfoCallback;
device_info : PCefMediaSinkDeviceInfo); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefMediaSinkDeviceInfoCallbackOwn) then
TCefMediaSinkDeviceInfoCallbackOwn(TempObject).OnMediaSinkDeviceInfo(CefString(@device_info^.ip_address),
device_info^.port,
CefString(@device_info^.model_name));
end;
// ****************************************************************
// ************** TCefMediaSinkDeviceInfoCallbackOwn **************
// ****************************************************************
constructor TCefMediaSinkDeviceInfoCallbackOwn.Create;
begin
inherited CreateData(SizeOf(TCefMediaSinkDeviceInfoCallback));
PCefMediaSinkDeviceInfoCallback(FData)^.on_media_sink_device_info :=
{$IFDEF FPC}@{$ENDIF}cef_media_sink_device_info_callback_on_media_sink_device_info;
end;
// *****************************************************************
// ************** TCefFastMediaSinkDeviceInfoCallback **************
// *****************************************************************
constructor TCefFastMediaSinkDeviceInfoCallback.Create(const callback: TCefMediaSinkDeviceInfoCallbackProc);
begin
inherited Create;
FCallback := callback;
end;
procedure TCefFastMediaSinkDeviceInfoCallback.OnMediaSinkDeviceInfo(const ip_address: ustring; port: integer; const model_name: ustring);
begin
if assigned(FCallback) then
FCallback(ip_address, port, model_name);
end;
destructor TCefFastMediaSinkDeviceInfoCallback.Destroy;
begin
FCallback := nil;
inherited Destroy;
end;
// *******************************************************************
// ************** TCefCustomMediaSinkDeviceInfoCallback **************
// *******************************************************************
constructor TCefCustomMediaSinkDeviceInfoCallback.Create(const aEvents : IChromiumEvents);
begin
inherited Create;
FEvents := Pointer(aEvents);
end;
destructor TCefCustomMediaSinkDeviceInfoCallback.Destroy;
begin
FEvents := nil;
inherited Destroy;
end;
procedure TCefCustomMediaSinkDeviceInfoCallback.OnMediaSinkDeviceInfo(const ip_address: ustring; port: integer; const model_name: ustring);
begin
try
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnMediaSinkDeviceInfo(ip_address, port, model_name);
except
on e : exception do
if CustomExceptionHandler('TCefCustomMediaSinkDeviceInfoCallback.OnMediaSinkDeviceInfo', e) then raise;
end;
finally
FEvents := nil;
end;
end;
end.