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CEF4Delphi/source/uCEFv8Accessor.pas
Salvador Díaz Fau fd1e936198 Update to CEF 79.0.10
- Removed CEFSentinel from some demos because it's no longer necessary.
- Updated copyright year.
2020-01-01 12:48:10 +01:00

203 lines
6.5 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF 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 © 2020 Salvador Diaz 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 uCEFv8Accessor;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefV8AccessorOwn = class(TCefBaseRefCountedOwn, ICefV8Accessor)
protected
function Get(const name: ustring; const object_: ICefv8Value; var retval: ICefv8Value; var exception: ustring): Boolean; virtual;
function Set_(const name: ustring; const object_, value: ICefv8Value; var exception: ustring): Boolean; virtual;
public
constructor Create; virtual;
end;
TCefFastV8Accessor = class(TCefV8AccessorOwn)
protected
FGetter: TCefV8AccessorGetterProc;
FSetter: TCefV8AccessorSetterProc;
function Get(const name: ustring; const object_: ICefv8Value; var retval: ICefv8Value; var exception: ustring): Boolean; override;
function Set_(const name: ustring; const object_, value: ICefv8Value; var exception: ustring): Boolean; override;
public
constructor Create(const getter: TCefV8AccessorGetterProc; const setter: TCefV8AccessorSetterProc); reintroduce;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions, uCEFv8Value;
function cef_v8_accessor_get( self : PCefV8Accessor;
const name : PCefString;
object_ : PCefv8Value;
out retval : PCefv8Value;
exception : PCefString): Integer; stdcall;
var
TempObject : TObject;
TempException : ustring;
TempReturnValue : ICefv8Value;
TempRecObject : ICefv8Value;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefV8AccessorOwn) then
try
TempRecObject := TCefv8ValueRef.UnWrap(object_);
TempException := '';
TempReturnValue := nil;
Result := Ord(TCefV8AccessorOwn(TempObject).Get(CefString(name),
TempRecObject,
TempReturnValue,
TempException));
retval := CefGetData(TempReturnValue);
if (exception <> nil) then
begin
CefStringFree(exception);
exception^ := CefStringAlloc(TempException);
end;
finally
TempRecObject := nil;
TempReturnValue := nil;
end;
end;
function cef_v8_accessor_set( self : PCefV8Accessor;
const name : PCefString;
object_ : PCefv8Value;
value : PCefv8Value;
exception : PCefString): Integer; stdcall;
var
TempObject : TObject;
TempException : ustring;
TempValue : ICefv8Value;
TempRecObject : ICefv8Value;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefV8AccessorOwn) then
try
TempRecObject := TCefv8ValueRef.UnWrap(object_);
TempValue := TCefv8ValueRef.UnWrap(value);
TempException := '';
Result := Ord(TCefV8AccessorOwn(TempObject).Set_(CefString(name),
TempRecObject,
TempValue,
TempException));
if (exception <> nil) then
begin
CefStringFree(exception);
exception^ := CefStringAlloc(TempException);
end;
finally
TempRecObject := nil;
TempValue := nil;
end;
end;
// TCefV8AccessorOwn
constructor TCefV8AccessorOwn.Create;
begin
inherited CreateData(SizeOf(TCefV8Accessor));
with PCefV8Accessor(FData)^ do
begin
get := {$IFDEF FPC}@{$ENDIF}cef_v8_accessor_get;
set_ := {$IFDEF FPC}@{$ENDIF}cef_v8_accessor_set;
end;
end;
function TCefV8AccessorOwn.Get(const name: ustring; const object_: ICefv8Value; var retval: ICefv8Value; var exception: ustring): Boolean;
begin
Result := False;
end;
function TCefV8AccessorOwn.Set_(const name: ustring; const object_, value: ICefv8Value; var exception: ustring): Boolean;
begin
Result := False;
end;
// TCefFastV8Accessor
constructor TCefFastV8Accessor.Create(const getter: TCefV8AccessorGetterProc; const setter: TCefV8AccessorSetterProc);
begin
FGetter := getter;
FSetter := setter;
end;
function TCefFastV8Accessor.Get(const name: ustring; const object_: ICefv8Value; var retval: ICefv8Value; var exception: ustring): Boolean;
begin
if Assigned(FGetter) then
Result := FGetter(name, object_, retval, exception)
else
Result := False;
end;
function TCefFastV8Accessor.Set_(const name: ustring; const object_, value: ICefv8Value; var exception: ustring): Boolean;
begin
if Assigned(FSetter) then
Result := FSetter(name, object_, value, exception)
else
Result := False;
end;
end.