CEF4Delphi/demos/Lazarus/JavaScript/JSExtensionWithFunction/uMyV8Handler.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

92 lines
3.0 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 uMyV8Handler;
{$MODE Delphi}
{$I cef.inc}
interface
uses
uCEFTypes, uCEFInterfaces, uCEFv8Value, uCEFProcessMessage, uCEFv8Handler, uCEFv8Context;
const
TEST_MESSAGE_NAME = 'test_message';
type
TMyV8Handler = class(TCefv8HandlerOwn)
protected
function Execute(const name: ustring; const obj: ICefv8Value; const arguments: TCefv8ValueArray; var retval: ICefv8Value; var exception: ustring): Boolean; override;
end;
implementation
function TMyV8Handler.Execute(const name : ustring;
const obj : ICefv8Value;
const arguments : TCefv8ValueArray;
var retval : ICefv8Value;
var exception : ustring): Boolean;
var
TempMessage : ICefProcessMessage;
TempFrame : ICefFrame;
begin
Result := False;
try
if (name = 'myfunc') then
begin
TempMessage := TCefProcessMessageRef.New(TEST_MESSAGE_NAME);
TempMessage.ArgumentList.SetString(0, 'Message received!');
TempFrame := TCefv8ContextRef.Current.Browser.MainFrame;
if (TempFrame <> nil) and TempFrame.IsValid then
TempFrame.SendProcessMessage(PID_BROWSER, TempMessage);
retval := TCefv8ValueRef.NewString('My Value!');
Result := True;
end;
finally
TempMessage := nil;
end;
end;
end.