mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-16 08:15:55 +01:00
77121dc510
- Check that all frames are valid before using them - Added an error page to MiniBrowser.
115 lines
3.8 KiB
ObjectPascal
115 lines
3.8 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 © 2019 Salvador Diaz 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 uTestExtensionHandler;
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{$MODE Delphi}
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{$I cef.inc}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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Winapi.Windows,
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{$ELSE}
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LCLIntf, LCLType, LMessages,
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{$ENDIF}
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uCEFRenderProcessHandler, uCEFBrowserProcessHandler, uCEFInterfaces, uCEFProcessMessage,
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uCEFv8Context, uCEFTypes, uCEFv8Handler;
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type
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TTestExtensionHandler = class(TCefv8HandlerOwn)
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protected
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function Execute(const name: ustring; const obj: ICefv8Value; const arguments: TCefv8ValueArray; var retval: ICefv8Value; var exception: ustring): Boolean; override;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFConstants, uJSExtension;
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function TTestExtensionHandler.Execute(const name : ustring;
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const obj : ICefv8Value;
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const arguments : TCefv8ValueArray;
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var retval : ICefv8Value;
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var exception : ustring): Boolean;
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var
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TempMessage : ICefProcessMessage;
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TempFrame : ICefFrame;
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begin
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Result := False;
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try
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if (name = 'mouseover') then
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begin
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if (length(arguments) > 0) and arguments[0].IsString then
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begin
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TempMessage := TCefProcessMessageRef.New(MOUSEOVER_MESSAGE_NAME);
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TempMessage.ArgumentList.SetString(0, arguments[0].GetStringValue);
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TempFrame := TCefv8ContextRef.Current.Browser.MainFrame;
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if (TempFrame <> nil) and TempFrame.IsValid then
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TempFrame.SendProcessMessage(PID_BROWSER, TempMessage);
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end;
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Result := True;
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end
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else
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if (name = 'sendresulttobrowser') then
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begin
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if (length(arguments) > 1) and arguments[0].IsString and arguments[1].IsString then
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begin
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TempMessage := TCefProcessMessageRef.New(arguments[1].GetStringValue);
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TempMessage.ArgumentList.SetString(0, arguments[0].GetStringValue);
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TempFrame := TCefv8ContextRef.Current.Browser.MainFrame;
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if (TempFrame <> nil) and TempFrame.IsValid then
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TempFrame.SendProcessMessage(PID_BROWSER, TempMessage);
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end;
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Result := True;
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end;
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finally
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TempMessage := nil;
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end;
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end;
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end.
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