CEF4Delphi/demos/MiniBrowser/uTestExtension.pas

// ************************************************************************
// ***************************** 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 <20> 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 uTestExtension;

{$I cef.inc}

interface

uses
  {$IFDEF DELPHI16_UP}
  Winapi.Windows,
  {$ELSE}
  Windows,
  {$ENDIF}
  uCEFRenderProcessHandler, uCEFBrowserProcessHandler, uCEFInterfaces, uCEFProcessMessage,
  uCEFv8Context, uCEFTypes, uCEFv8Handler;

type
  TCustomRenderProcessHandler = class(TCefRenderProcessHandlerOwn)
  protected
    procedure OnWebKitInitialized; override;
  end;

  TCustomBrowserProcessHandler = class(TCefBrowserProcessHandlerOwn)
  protected
    procedure OnScheduleMessagePumpWork(delayMs: Int64); override;
  end;

  TTestExtension = class
    class function hello: string;
    class procedure mouseover(const data: string);
  end;

implementation

var
  pumpMessages: Integer = 0;

{ TCustomRenderProcessHandler }

function getpath(const n: ICefDomNode): string;
begin
  Result := '<' + n.Name + '>';
  if (n.Parent <> nil) then
    Result := getpath(n.Parent) + Result;
end;

procedure TCustomRenderProcessHandler.OnWebKitInitialized;
begin
{$IFDEF DELPHI14_UP}
  TCefRTTIExtension.Register('app', TTestExtension);
{$ENDIF}
end;

{ TTestExtension }

class procedure TTestExtension.mouseover(const data: string);
var
  msg: ICefProcessMessage;
begin
  msg := TCefProcessMessageRef.New('mouseover');
  msg.ArgumentList.SetString(0, data);
  TCefv8ContextRef.Current.Browser.SendProcessMessage(PID_BROWSER, msg);
end;

class function TTestExtension.hello: string;
begin
  Result := 'Hello from Delphi';
end;

{ TCustomBrowserProcessHandler }

procedure TCustomBrowserProcessHandler.OnScheduleMessagePumpWork(
  delayMs: Int64);
begin
  InterlockedExchange(pumpMessages, 1);
end;

end.