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CEF4Delphi/source/uCEFv8Accessor.pas
2018-03-29 20:02:04 +02:00

170 lines
5.7 KiB
ObjectPascal

// ************************************************************************
// ***************************** 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 © 2018 Salvador Díaz 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;
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFv8Types;
type
TCefV8AccessorOwn = class(TCefBaseRefCountedOwn, ICefV8Accessor)
protected
function Get(const name: ustring; const obj: ICefv8Value; out retval: ICefv8Value; var exception: ustring): Boolean; virtual;
function Put(const name: ustring; const obj, 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 obj: ICefv8Value; out retval: ICefv8Value; var exception: ustring): Boolean; override;
function Put(const name: ustring; const obj, 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;
obj : PCefv8Value;
out retval : PCefv8Value;
exception : PCefString): Integer; stdcall;
var
ret : ICefv8Value;
TempExcept : ustring;
TempObject : TObject;
begin
Result := Ord(False);
TempExcept := CefString(exception);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefV8AccessorOwn) then
Result := Ord(TCefV8AccessorOwn(TempObject).Get(CefString(name),
TCefv8ValueRef.UnWrap(obj),
ret,
TempExcept));
retval := CefGetData(ret);
exception^ := CefString(TempExcept);
end;
function cef_v8_accessor_put( self : PCefV8Accessor;
const name : PCefString;
obj : PCefv8Value;
value : PCefv8Value;
exception : PCefString): Integer; stdcall;
var
TempExcept : ustring;
TempObject : TObject;
begin
Result := Ord(False);
TempExcept := CefString(exception);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefV8AccessorOwn) then
Result := Ord(TCefV8AccessorOwn(TempObject).Put(CefString(name),
TCefv8ValueRef.UnWrap(obj),
TCefv8ValueRef.UnWrap(value),
TempExcept));
exception^ := CefString(TempExcept);
end;
// TCefV8AccessorOwn
constructor TCefV8AccessorOwn.Create;
begin
inherited CreateData(SizeOf(TCefV8Accessor));
PCefV8Accessor(FData)^.get := cef_v8_accessor_get;
PCefV8Accessor(FData)^.put := cef_v8_accessor_put;
end;
function TCefV8AccessorOwn.Get(const name: ustring; const obj: ICefv8Value; out retval: ICefv8Value; var exception: ustring): Boolean;
begin
Result := False;
end;
function TCefV8AccessorOwn.Put(const name: ustring; const obj, 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 obj: ICefv8Value; out retval: ICefv8Value; var exception: ustring): Boolean;
begin
if Assigned(FGetter) then
Result := FGetter(name, obj, retval, exception)
else
Result := False;
end;
function TCefFastV8Accessor.Put(const name: ustring; const obj, value: ICefv8Value; var exception: ustring): Boolean;
begin
if Assigned(FSetter) then
Result := FSetter(name, obj, value, exception)
else
Result := False;
end;
end.