CEF4Delphi/source/uCEFZipReader.pas

unit uCEFZipReader;

{$IFDEF FPC}
  {$MODE OBJFPC}{$H+}
{$ENDIF}

{$I cef.inc}

{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}

interface

uses
  uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;

type
  TCefZipReaderRef = class(TCefBaseRefCountedRef, ICefZipReader)
  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: TCefBaseTime;
    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;
end;

function TCefZipReaderRef.CloseFile: Boolean;
begin
  Result := PCefZipReader(FData)^.close_file(PCefZipReader(FData)) <> 0;
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;
end;

function TCefZipReaderRef.GetFileLastModified: TCefBaseTime;
begin
  Result := PCefZipReader(FData)^.get_file_last_modified(PCefZipReader(FData));
end;

function TCefZipReaderRef.GetFileName: ustring;
begin
  Result := CefStringFreeAndGet(PCefZipReader(FData)^.get_file_name(PCefZipReader(FData)));
end;

function TCefZipReaderRef.GetFileSize: Int64;
begin
  Result := PCefZipReader(FData)^.get_file_size(PCefZipReader(FData));
end;

function TCefZipReaderRef.MoveToFile(const fileName: ustring; caseSensitive: Boolean): Boolean;
var
  TempFilename : TCefString;
begin
  TempFilename := CefString(fileName);
  Result       := PCefZipReader(FData)^.move_to_file(PCefZipReader(FData), @TempFilename, Ord(caseSensitive)) <> 0;
end;

function TCefZipReaderRef.MoveToFirstFile: Boolean;
begin
  Result := PCefZipReader(FData)^.move_to_first_file(PCefZipReader(FData)) <> 0;
end;

function TCefZipReaderRef.MoveToNextFile: Boolean;
begin
  Result := PCefZipReader(FData)^.move_to_next_file(PCefZipReader(FData)) <> 0;
end;

function TCefZipReaderRef.OpenFile(const password: ustring): Boolean;
var
  TempPassword : TCefString;
begin
  TempPassword := CefString(password);
  Result       := PCefZipReader(FData)^.open_file(PCefZipReader(FData), @TempPassword) <> 0;
end;

function TCefZipReaderRef.ReadFile(buffer: Pointer; bufferSize: NativeUInt): Integer;
begin
  Result := PCefZipReader(FData)^.read_file(PCefZipReader(FData), buffer, buffersize);
end;

function TCefZipReaderRef.Tell: Int64;
begin
  Result := PCefZipReader(FData)^.tell(PCefZipReader(FData));
end;

class function TCefZipReaderRef.UnWrap(data: Pointer): ICefZipReader;
begin
  if (data <> nil) then
    Result := Create(data) as ICefZipReader
   else
    Result := nil;
end;

end.