mirror of
https://github.com/salvadordf/CEF4Delphi.git
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294 lines
11 KiB
ObjectPascal
294 lines
11 KiB
ObjectPascal
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// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright <20> 2020 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFAudioHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
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type
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TCefAudioHandlerOwn = class(TCefBaseRefCountedOwn, ICefAudioHandler)
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protected
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procedure OnGetAudioParameters(const browser: ICefBrowser; var params: TCefAudioParameters; var aResult: boolean); virtual;
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procedure OnAudioStreamStarted(const browser: ICefBrowser; const params: TCefAudioParameters; channels: integer); virtual;
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procedure OnAudioStreamPacket(const browser: ICefBrowser; const data : PPSingle; frames: integer; pts: int64); virtual;
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procedure OnAudioStreamStopped(const browser: ICefBrowser); virtual;
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procedure OnAudioStreamError(const browser: ICefBrowser; const message_: ustring); virtual;
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procedure RemoveReferences; virtual;
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public
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constructor Create; virtual;
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end;
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TCustomAudioHandler = class(TCefAudioHandlerOwn)
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protected
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FEvents : Pointer;
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procedure OnGetAudioParameters(const browser: ICefBrowser; var params: TCefAudioParameters; var aResult: boolean); override;
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procedure OnAudioStreamStarted(const browser: ICefBrowser; const params: TCefAudioParameters; channels: integer); override;
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procedure OnAudioStreamPacket(const browser: ICefBrowser; const data : PPSingle; frames: integer; pts: int64); override;
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procedure OnAudioStreamStopped(const browser: ICefBrowser); override;
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procedure OnAudioStreamError(const browser: ICefBrowser; const message_: ustring); override;
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procedure RemoveReferences; override;
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public
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constructor Create(const events : IChromiumEvents); reintroduce; virtual;
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destructor Destroy; override;
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end;
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implementation
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uses
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{$IFDEF DELPHI16_UP}
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System.SysUtils,
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{$ELSE}
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SysUtils,
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{$ENDIF}
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uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser;
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function cef_audio_handler_get_audio_parameters(self : PCefAudioHandler;
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browser : PCefBrowser;
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params : PCefAudioParameters): Integer; stdcall;
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var
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TempObject : TObject;
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TempParams : TCefAudioParameters;
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TempResult : boolean;
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begin
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TempObject := CefGetObject(self);
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TempResult := False;
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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begin
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TempParams := params^;
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TCefAudioHandlerOwn(TempObject).OnGetAudioParameters(TCefBrowserRef.UnWrap(browser),
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TempParams,
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TempResult);
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if TempResult then
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params^ := TempParams;
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end;
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Result := ord(TempResult);
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end;
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procedure cef_audio_handler_on_audio_stream_started( self : PCefAudioHandler;
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browser : PCefBrowser;
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const params : PCefAudioParameters;
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channels : integer); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamStarted(TCefBrowserRef.UnWrap(browser),
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params^,
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channels);
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end;
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procedure cef_audio_handler_on_audio_stream_packet( self : PCefAudioHandler;
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browser : PCefBrowser;
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const data : PPSingle;
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frames : integer;
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pts : int64); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamPacket(TCefBrowserRef.UnWrap(browser),
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data,
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frames,
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pts);
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end;
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procedure cef_audio_handler_on_audio_stream_stopped(self: PCefAudioHandler; browser: PCefBrowser); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamStopped(TCefBrowserRef.UnWrap(browser));
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end;
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procedure cef_audio_handler_on_audio_stream_error(self: PCefAudioHandler; browser: PCefBrowser; const message_: PCefString); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamError(TCefBrowserRef.UnWrap(browser),
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CefString(message_));
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end;
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constructor TCefAudioHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefAudioHandler));
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with PCefAudioHandler(FData)^ do
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begin
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get_audio_parameters := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_get_audio_parameters;
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on_audio_stream_started := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_started;
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on_audio_stream_packet := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_packet;
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on_audio_stream_stopped := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_stopped;
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on_audio_stream_error := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_error;
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end;
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end;
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procedure TCefAudioHandlerOwn.OnGetAudioParameters(const browser : ICefBrowser;
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var params : TCefAudioParameters;
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var aResult : boolean);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamStarted(const browser : ICefBrowser;
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const params : TCefAudioParameters;
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channels : integer);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamPacket(const browser : ICefBrowser;
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const data : PPSingle;
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frames : integer;
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pts : int64);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamStopped(const browser : ICefBrowser);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamError(const browser : ICefBrowser;
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const message_ : ustring);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomAudioHandler
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constructor TCustomAudioHandler.Create(const events : IChromiumEvents);
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begin
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inherited Create;
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FEvents := Pointer(events);
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end;
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destructor TCustomAudioHandler.Destroy;
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begin
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RemoveReferences;
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inherited Destroy;
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end;
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procedure TCustomAudioHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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procedure TCustomAudioHandler.OnGetAudioParameters(const browser : ICefBrowser;
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var params : TCefAudioParameters;
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var aResult : boolean);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnGetAudioParameters(browser,
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params,
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aResult);
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end;
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procedure TCustomAudioHandler.OnAudioStreamStarted(const browser : ICefBrowser;
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const params : TCefAudioParameters;
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channels : integer);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamStarted(browser,
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params,
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channels);
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end;
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procedure TCustomAudioHandler.OnAudioStreamPacket(const browser : ICefBrowser;
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const data : PPSingle;
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frames : integer;
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pts : int64);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamPacket(browser,
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data,
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frames,
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pts);
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end;
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procedure TCustomAudioHandler.OnAudioStreamStopped(const browser : ICefBrowser);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamStopped(browser);
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end;
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procedure TCustomAudioHandler.OnAudioStreamError(const browser : ICefBrowser;
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const message_ : ustring);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamError(browser,
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message_);
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end;
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end.
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