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CEF4Delphi/source/uCEFResponseFilter.pas
2017-01-27 17:29:37 +01:00

89 lines
3.0 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 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 © 2017 Salvador Díaz 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 uCEFResponseFilter;
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
interface
uses
uCEFBase, uCEFInterfaces, uCEFTypes;
type
TCefResponseFilterOwn = class(TCefBaseOwn, ICefResponseFilter)
protected
function InitFilter: Boolean; virtual; abstract;
function Filter(dataIn: Pointer; dataInSize, dataInRead: NativeUInt; dataOut: Pointer;
dataOutSize, dataOutWritten: NativeUInt): TCefResponseFilterStatus; virtual; abstract;
public
constructor Create; virtual;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions;
function cef_response_filter_init_filter(self: PCefResponseFilter): Integer; stdcall;
begin
with TCefResponseFilterOwn(CefGetObject(self)) do
Result := Ord(InitFilter());
end;
function cef_response_filter_filter(self: PCefResponseFilter; data_in: Pointer; data_in_size, data_in_read: NativeUInt;
data_out: Pointer; data_out_size, data_out_written: NativeUInt): TCefResponseFilterStatus; stdcall;
begin
with TCefResponseFilterOwn(CefGetObject(self)) do
Result := Filter(data_in, data_in_size, data_in_read, data_out, data_out_size, data_out_written);
end;
constructor TCefResponseFilterOwn.Create;
begin
CreateData(SizeOf(TCefResponseFilter), False);
with PCefResponseFilter(FData)^ do
begin
init_filter := cef_response_filter_init_filter;
filter := cef_response_filter_filter;
end;
end;
end.