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CEF4Delphi/source/uCEFZipReader.pas

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// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
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// 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 � 2019 Salvador Diaz Fau. All rights reserved.
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//
// ************************************************************************
// ************ 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 uCEFZipReader;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
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type
TCefZipReaderRef = class(TCefBaseRefCountedRef, ICefZipReader)
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protected
function MoveToFirstFile: Boolean;
function MoveToNextFile: Boolean;
function MoveToFile(const fileName: ustring; caseSensitive: Boolean): Boolean;
function Close: Boolean;
function GetFileName: ustring;
function GetFileSize: Int64;
function GetFileLastModified: TCefTime;
function OpenFile(const password: ustring): Boolean;
function CloseFile: Boolean;
function ReadFile(buffer: Pointer; bufferSize: NativeUInt): Integer;
function Tell: Int64;
function Eof: Boolean;
public
class function UnWrap(data: Pointer): ICefZipReader;
class function New(const stream: ICefStreamReader): ICefZipReader;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions;
function TCefZipReaderRef.Close: Boolean;
begin
Result := PCefZipReader(FData)^.close(PCefZipReader(FData)) <> 0;
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end;
function TCefZipReaderRef.CloseFile: Boolean;
begin
Result := PCefZipReader(FData)^.close_file(PCefZipReader(FData)) <> 0;
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end;
class function TCefZipReaderRef.New(const stream: ICefStreamReader): ICefZipReader;
begin
Result := UnWrap(cef_zip_reader_create(CefGetData(stream)));
end;
function TCefZipReaderRef.Eof: Boolean;
begin
Result := PCefZipReader(FData)^.eof(PCefZipReader(FData)) <> 0;
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end;
function TCefZipReaderRef.GetFileLastModified: TCefTime;
begin
Result := PCefZipReader(FData)^.get_file_last_modified(PCefZipReader(FData));
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end;
function TCefZipReaderRef.GetFileName: ustring;
begin
Result := CefStringFreeAndGet(PCefZipReader(FData)^.get_file_name(PCefZipReader(FData)));
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end;
function TCefZipReaderRef.GetFileSize: Int64;
begin
Result := PCefZipReader(FData)^.get_file_size(PCefZipReader(FData));
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end;
function TCefZipReaderRef.MoveToFile(const fileName: ustring; caseSensitive: Boolean): Boolean;
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var
TempFilename : TCefString;
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begin
TempFilename := CefString(fileName);
Result := PCefZipReader(FData)^.move_to_file(PCefZipReader(FData), @TempFilename, Ord(caseSensitive)) <> 0;
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end;
function TCefZipReaderRef.MoveToFirstFile: Boolean;
begin
Result := PCefZipReader(FData)^.move_to_first_file(PCefZipReader(FData)) <> 0;
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end;
function TCefZipReaderRef.MoveToNextFile: Boolean;
begin
Result := PCefZipReader(FData)^.move_to_next_file(PCefZipReader(FData)) <> 0;
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end;
function TCefZipReaderRef.OpenFile(const password: ustring): Boolean;
var
TempPassword : TCefString;
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begin
TempPassword := CefString(password);
Result := PCefZipReader(FData)^.open_file(PCefZipReader(FData), @TempPassword) <> 0;
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end;
function TCefZipReaderRef.ReadFile(buffer: Pointer; bufferSize: NativeUInt): Integer;
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begin
Result := PCefZipReader(FData)^.read_file(PCefZipReader(FData), buffer, buffersize);
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end;
function TCefZipReaderRef.Tell: Int64;
begin
Result := PCefZipReader(FData)^.tell(PCefZipReader(FData));
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end;
class function TCefZipReaderRef.UnWrap(data: Pointer): ICefZipReader;
begin
if (data <> nil) then
Result := Create(data) as ICefZipReader
else
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Result := nil;
end;
end.