mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
307 lines
8.7 KiB
ObjectPascal
307 lines
8.7 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 © 2017 Salvador Díaz 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 uCEFPostDataElement;
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{$IFNDEF CPUX64}
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{$ALIGN ON}
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{$MINENUMSIZE 4}
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{$ENDIF}
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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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TCefPostDataElementRef = class(TCefBaseRefCountedRef, ICefPostDataElement)
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protected
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function IsReadOnly: Boolean;
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procedure SetToEmpty;
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procedure SetToFile(const fileName: ustring);
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procedure SetToBytes(size: NativeUInt; bytes: Pointer);
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function GetType: TCefPostDataElementType;
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function GetFile: ustring;
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function GetBytesCount: NativeUInt;
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function GetBytes(size: NativeUInt; bytes: Pointer): NativeUInt;
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public
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class function UnWrap(data: Pointer): ICefPostDataElement;
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class function New: ICefPostDataElement;
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end;
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TCefPostDataElementOwn = class(TCefBaseRefCountedOwn, ICefPostDataElement)
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protected
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FDataType: TCefPostDataElementType;
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FValueByte: Pointer;
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FValueStr: TCefString;
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FSize: NativeUInt;
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FReadOnly: Boolean;
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procedure Clear;
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function IsReadOnly: Boolean; virtual;
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procedure SetToEmpty; virtual;
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procedure SetToFile(const fileName: ustring); virtual;
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procedure SetToBytes(size: NativeUInt; bytes: Pointer); virtual;
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function GetType: TCefPostDataElementType; virtual;
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function GetFile: ustring; virtual;
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function GetBytesCount: NativeUInt; virtual;
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function GetBytes(size: NativeUInt; bytes: Pointer): NativeUInt; virtual;
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public
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constructor Create(readonly: Boolean); virtual;
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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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function cef_post_data_element_is_read_only(self: PCefPostDataElement): Integer; stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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Result := Ord(IsReadOnly)
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end;
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procedure cef_post_data_element_set_to_empty(self: PCefPostDataElement); stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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SetToEmpty;
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end;
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procedure cef_post_data_element_set_to_file(self: PCefPostDataElement; const fileName: PCefString); stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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SetToFile(CefString(fileName));
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end;
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procedure cef_post_data_element_set_to_bytes(self: PCefPostDataElement; size: NativeUInt; const bytes: Pointer); stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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SetToBytes(size, bytes);
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end;
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function cef_post_data_element_get_type(self: PCefPostDataElement): TCefPostDataElementType; stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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Result := GetType;
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end;
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function cef_post_data_element_get_file(self: PCefPostDataElement): PCefStringUserFree; stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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Result := CefUserFreeString(GetFile);
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end;
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function cef_post_data_element_get_bytes_count(self: PCefPostDataElement): NativeUInt; stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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Result := GetBytesCount;
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end;
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function cef_post_data_element_get_bytes(self: PCefPostDataElement; size: NativeUInt; bytes: Pointer): NativeUInt; stdcall;
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begin
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with TCefPostDataElementOwn(CefGetObject(self)) do
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Result := GetBytes(size, bytes)
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end;
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function TCefPostDataElementRef.IsReadOnly: Boolean;
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begin
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Result := PCefPostDataElement(FData)^.is_read_only(PCefPostDataElement(FData)) <> 0;
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end;
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function TCefPostDataElementRef.GetBytes(size: NativeUInt;
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bytes: Pointer): NativeUInt;
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begin
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Result := PCefPostDataElement(FData)^.get_bytes(PCefPostDataElement(FData), size, bytes);
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end;
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function TCefPostDataElementRef.GetBytesCount: NativeUInt;
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begin
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Result := PCefPostDataElement(FData)^.get_bytes_count(PCefPostDataElement(FData));
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end;
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function TCefPostDataElementRef.GetFile: ustring;
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begin
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Result := CefStringFreeAndGet(PCefPostDataElement(FData)^.get_file(PCefPostDataElement(FData)));
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end;
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function TCefPostDataElementRef.GetType: TCefPostDataElementType;
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begin
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Result := PCefPostDataElement(FData)^.get_type(PCefPostDataElement(FData));
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end;
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class function TCefPostDataElementRef.New: ICefPostDataElement;
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begin
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Result := UnWrap(cef_post_data_element_create);
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end;
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procedure TCefPostDataElementRef.SetToBytes(size: NativeUInt; bytes: Pointer);
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begin
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PCefPostDataElement(FData)^.set_to_bytes(PCefPostDataElement(FData), size, bytes);
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end;
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procedure TCefPostDataElementRef.SetToEmpty;
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begin
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PCefPostDataElement(FData)^.set_to_empty(PCefPostDataElement(FData));
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end;
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procedure TCefPostDataElementRef.SetToFile(const fileName: ustring);
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var
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f: TCefString;
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begin
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f := CefString(fileName);
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PCefPostDataElement(FData)^.set_to_file(PCefPostDataElement(FData), @f);
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end;
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class function TCefPostDataElementRef.UnWrap(data: Pointer): ICefPostDataElement;
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begin
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if data <> nil then
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Result := Create(data) as ICefPostDataElement else
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Result := nil;
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end;
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// TCefPostDataElementOwn
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procedure TCefPostDataElementOwn.Clear;
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begin
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case FDataType of
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PDE_TYPE_BYTES:
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if (FValueByte <> nil) then
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begin
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FreeMem(FValueByte);
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FValueByte := nil;
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end;
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PDE_TYPE_FILE:
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CefStringFree(@FValueStr)
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end;
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FDataType := PDE_TYPE_EMPTY;
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FSize := 0;
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end;
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constructor TCefPostDataElementOwn.Create(readonly: Boolean);
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begin
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inherited CreateData(SizeOf(TCefPostDataElement));
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FReadOnly := readonly;
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FDataType := PDE_TYPE_EMPTY;
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FValueByte := nil;
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FillChar(FValueStr, SizeOf(FValueStr), 0);
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FSize := 0;
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with PCefPostDataElement(FData)^ do
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begin
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is_read_only := cef_post_data_element_is_read_only;
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set_to_empty := cef_post_data_element_set_to_empty;
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set_to_file := cef_post_data_element_set_to_file;
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set_to_bytes := cef_post_data_element_set_to_bytes;
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get_type := cef_post_data_element_get_type;
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get_file := cef_post_data_element_get_file;
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get_bytes_count := cef_post_data_element_get_bytes_count;
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get_bytes := cef_post_data_element_get_bytes;
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end;
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end;
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function TCefPostDataElementOwn.GetBytes(size: NativeUInt;
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bytes: Pointer): NativeUInt;
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begin
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if (FDataType = PDE_TYPE_BYTES) and (FValueByte <> nil) then
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begin
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if size > FSize then
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Result := FSize else
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Result := size;
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Move(FValueByte^, bytes^, Result);
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end else
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Result := 0;
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end;
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function TCefPostDataElementOwn.GetBytesCount: NativeUInt;
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begin
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if (FDataType = PDE_TYPE_BYTES) then
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Result := FSize else
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Result := 0;
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end;
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function TCefPostDataElementOwn.GetFile: ustring;
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begin
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if (FDataType = PDE_TYPE_FILE) then
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Result := CefString(@FValueStr) else
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Result := '';
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end;
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function TCefPostDataElementOwn.GetType: TCefPostDataElementType;
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begin
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Result := FDataType;
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end;
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function TCefPostDataElementOwn.IsReadOnly: Boolean;
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begin
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Result := FReadOnly;
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end;
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procedure TCefPostDataElementOwn.SetToBytes(size: NativeUInt; bytes: Pointer);
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begin
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Clear;
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if (size > 0) and (bytes <> nil) then
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begin
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GetMem(FValueByte, size);
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Move(bytes^, FValueByte, size);
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FSize := size;
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end else
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begin
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FValueByte := nil;
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FSize := 0;
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end;
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FDataType := PDE_TYPE_BYTES;
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end;
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procedure TCefPostDataElementOwn.SetToEmpty;
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begin
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Clear;
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end;
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procedure TCefPostDataElementOwn.SetToFile(const fileName: ustring);
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begin
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Clear;
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FSize := 0;
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FValueStr := CefStringAlloc(fileName);
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FDataType := PDE_TYPE_FILE;
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end;
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end.
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