mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-12-04 09:26:52 +02:00
769aa4f384
- Added lots of conditional compiler directives to build CEF4DElphi in Linux using Lazarus/FPC - Updated copyright year
166 lines
5.8 KiB
ObjectPascal
166 lines
5.8 KiB
ObjectPascal
// ************************************************************************
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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 © 2019 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 uCEFResponseFilter;
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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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TOnFilterEvent = procedure(Sender: TObject; data_in: Pointer; data_in_size: NativeUInt; var data_in_read: NativeUInt; data_out: Pointer; data_out_size : NativeUInt; var data_out_written: NativeUInt; var aResult : TCefResponseFilterStatus) of object;
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TOnInitFilterEvent = procedure(Sender: TObject; var aResult : boolean) of object;
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TCefResponseFilterOwn = class(TCefBaseRefCountedOwn, ICefResponseFilter)
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protected
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function InitFilter: Boolean; virtual; abstract;
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function Filter(data_in: Pointer; data_in_size: NativeUInt; var data_in_read: NativeUInt; data_out: Pointer; data_out_size : NativeUInt; var data_out_written: NativeUInt): TCefResponseFilterStatus; virtual; abstract;
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public
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constructor Create; virtual;
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end;
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TCustomResponseFilter = class(TCefResponseFilterOwn)
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protected
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FOnFilter : TOnFilterEvent;
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FOnInitFilter : TOnInitFilterEvent;
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function InitFilter: Boolean; override;
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function Filter(data_in: Pointer; data_in_size: NativeUInt; var data_in_read: NativeUInt; data_out: Pointer; data_out_size : NativeUInt; var data_out_written: NativeUInt): TCefResponseFilterStatus; override;
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public
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constructor Create; override;
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property OnFilter : TOnFilterEvent read FOnFilter write FOnFilter;
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property OnInitFilter : TOnInitFilterEvent read FOnInitFilter write FOnInitFilter;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFLibFunctions;
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// TCefResponseFilterOwn
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function cef_response_filter_init_filter(self: PCefResponseFilter): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(True);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefResponseFilterOwn) then
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Result := Ord(TCefResponseFilterOwn(TempObject).InitFilter());
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end;
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function cef_response_filter_filter( self : PCefResponseFilter;
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data_in : Pointer;
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data_in_size : NativeUInt;
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var data_in_read : NativeUInt;
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data_out : Pointer;
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data_out_size : NativeUInt;
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var data_out_written : NativeUInt): TCefResponseFilterStatus; stdcall;
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var
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TempObject : TObject;
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begin
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Result := RESPONSE_FILTER_DONE;
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefResponseFilterOwn) then
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Result := TCefResponseFilterOwn(TempObject).Filter(data_in, data_in_size, data_in_read,
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data_out, data_out_size, data_out_written);
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end;
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constructor TCefResponseFilterOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefResponseFilter));
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with PCefResponseFilter(FData)^ do
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begin
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init_filter := {$IFDEF FPC}@{$ENDIF}cef_response_filter_init_filter;
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filter := {$IFDEF FPC}@{$ENDIF}cef_response_filter_filter;
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end;
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end;
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// TCustomResponseFilter
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constructor TCustomResponseFilter.Create;
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begin
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inherited Create;
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FOnFilter := nil;
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FOnInitFilter := nil;
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end;
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function TCustomResponseFilter.InitFilter: Boolean;
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begin
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Result := True;
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if assigned(FOnInitFilter) then FOnInitFilter(self, Result);
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end;
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function TCustomResponseFilter.Filter( data_in : Pointer;
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data_in_size : NativeUInt;
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var data_in_read : NativeUInt;
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data_out : Pointer;
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data_out_size : NativeUInt;
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var data_out_written : NativeUInt) : TCefResponseFilterStatus;
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begin
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Result := RESPONSE_FILTER_DONE;
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if assigned(FOnFilter) then
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FOnFilter(self,
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data_in, data_in_size, data_in_read,
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data_out, data_out_size, data_out_written,
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Result);
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end;
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end.
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