reorganization of folders

source/uCEFStreamReader.pas

@@ -0,0 +1,129 @@
+// ************************************************************************
+// ***************************** 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 D�az 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 uCEFStreamReader;
+
+{$IFNDEF CPUX64}
+  {$ALIGN ON}
+  {$MINENUMSIZE 4}
+{$ENDIF}
+
+interface
+
+uses
+  System.Classes,
+  uCEFBase, uCEFInterfaces, uCEFTypes;
+
+type
+  TCefStreamReaderRef = class(TCefBaseRef, ICefStreamReader)
+  protected
+    function Read(ptr: Pointer; size, n: NativeUInt): NativeUInt;
+    function Seek(offset: Int64; whence: Integer): Integer;
+    function Tell: Int64;
+    function Eof: Boolean;
+    function MayBlock: Boolean;
+  public
+    class function UnWrap(data: Pointer): ICefStreamReader;
+    class function CreateForFile(const filename: ustring): ICefStreamReader;
+    class function CreateForCustomStream(const stream: ICefCustomStreamReader): ICefStreamReader;
+    class function CreateForStream(const stream: TSTream; owned: Boolean): ICefStreamReader;
+    class function CreateForData(data: Pointer; size: NativeUInt): ICefStreamReader;
+  end;
+
+implementation
+
+uses
+  uCEFMiscFunctions, uCEFLibFunctions, uCEFCustomStreamReader;
+
+class function TCefStreamReaderRef.CreateForCustomStream(
+  const stream: ICefCustomStreamReader): ICefStreamReader;
+begin
+  Result := UnWrap(cef_stream_reader_create_for_handler(CefGetData(stream)))
+end;
+
+class function TCefStreamReaderRef.CreateForData(data: Pointer; size: NativeUInt): ICefStreamReader;
+begin
+  Result := UnWrap(cef_stream_reader_create_for_data(data, size))
+end;
+
+class function TCefStreamReaderRef.CreateForFile(const filename: ustring): ICefStreamReader;
+var
+  f: TCefString;
+begin
+  f := CefString(filename);
+  Result := UnWrap(cef_stream_reader_create_for_file(@f))
+end;
+
+class function TCefStreamReaderRef.CreateForStream(const stream: TSTream;
+  owned: Boolean): ICefStreamReader;
+begin
+  Result := CreateForCustomStream(TCefCustomStreamReader.Create(stream, owned) as ICefCustomStreamReader);
+end;
+
+function TCefStreamReaderRef.Eof: Boolean;
+begin
+  Result := PCefStreamReader(FData)^.eof(PCefStreamReader(FData)) <> 0;
+end;
+
+function TCefStreamReaderRef.MayBlock: Boolean;
+begin
+  Result := PCefStreamReader(FData)^.may_block(FData) <> 0;
+end;
+
+function TCefStreamReaderRef.Read(ptr: Pointer; size, n: NativeUInt): NativeUInt;
+begin
+  Result := PCefStreamReader(FData)^.read(PCefStreamReader(FData), ptr, size, n);
+end;
+
+function TCefStreamReaderRef.Seek(offset: Int64; whence: Integer): Integer;
+begin
+  Result := PCefStreamReader(FData)^.seek(PCefStreamReader(FData), offset, whence);
+end;
+
+function TCefStreamReaderRef.Tell: Int64;
+begin
+  Result := PCefStreamReader(FData)^.tell(PCefStreamReader(FData));
+end;
+
+class function TCefStreamReaderRef.UnWrap(data: Pointer): ICefStreamReader;
+begin
+  if data <> nil then
+    Result := Create(data) as ICefStreamReader else
+    Result := nil;
+end;
+
+end.