mirror of
https://github.com/salvadordf/CEF4Delphi.git
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121 lines
3.8 KiB
ObjectPascal
121 lines
3.8 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 CEF 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 © 2023 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 uCEFStreamWriter;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$I cef.inc}
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{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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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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TCefStreamWriterRef = class(TCefBaseRefCountedRef, ICefStreamWriter)
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protected
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function write(const ptr: Pointer; size, n: NativeUInt): NativeUInt;
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function Seek(offset: Int64; whence: Integer): Integer;
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function Tell: Int64;
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function Flush: Integer;
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function MayBlock: Boolean;
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public
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class function UnWrap(data: Pointer): ICefStreamWriter;
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class function CreateForFile(const fileName: ustring): ICefStreamWriter;
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class function CreateForHandler(const handler: ICefWriteHandler): ICefStreamWriter;
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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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class function TCefStreamWriterRef.CreateForFile(const fileName: ustring): ICefStreamWriter;
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var
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TempFileName : TCefString;
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begin
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TempFileName := CefString(fileName);
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Result := UnWrap(cef_stream_writer_create_for_file(@TempFileName));
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end;
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class function TCefStreamWriterRef.CreateForHandler(const handler: ICefWriteHandler): ICefStreamWriter;
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begin
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Result := UnWrap(cef_stream_writer_create_for_handler(CefGetData(handler)));
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end;
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function TCefStreamWriterRef.Flush: Integer;
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begin
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Result := PCefStreamWriter(FData)^.flush(PCefStreamWriter(FData));
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end;
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function TCefStreamWriterRef.MayBlock: Boolean;
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begin
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Result := PCefStreamWriter(FData)^.may_block(PCefStreamWriter(FData)) <> 0;
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end;
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function TCefStreamWriterRef.Seek(offset: Int64; whence: Integer): Integer;
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begin
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Result := PCefStreamWriter(FData)^.seek(PCefStreamWriter(FData), offset, whence);
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end;
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function TCefStreamWriterRef.Tell: Int64;
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begin
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Result := PCefStreamWriter(FData)^.tell(PCefStreamWriter(FData));
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end;
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class function TCefStreamWriterRef.UnWrap(data: Pointer): ICefStreamWriter;
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begin
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if data <> nil then
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Result := Create(data) as ICefStreamWriter
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else
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Result := nil;
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end;
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function TCefStreamWriterRef.write(const ptr: Pointer; size, n: NativeUInt): NativeUInt;
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begin
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Result := PCefStreamWriter(FData)^.write(PCefStreamWriter(FData), ptr, size, n);
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end;
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end.
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