1
0
mirror of https://github.com/salvadordf/CEF4Delphi.git synced 2024-12-04 09:26:52 +02:00
CEF4Delphi/source/uCEFv8Context.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

158 lines
5.0 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 uCEFv8Context;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefv8ContextRef = class(TCefBaseRefCountedRef, ICefv8Context)
protected
function GetTaskRunner: ICefTaskRunner;
function IsValid: Boolean;
function GetBrowser: ICefBrowser;
function GetFrame: ICefFrame;
function GetGlobal: ICefv8Value;
function Enter: Boolean;
function Exit: Boolean;
function IsSame(const that: ICefv8Context): Boolean;
function Eval(const code: ustring; const script_url: ustring; start_line: integer; var retval: ICefv8Value; var exception: ICefV8Exception): Boolean;
public
class function UnWrap(data: Pointer): ICefv8Context;
class function Current: ICefv8Context;
class function Entered: ICefv8Context;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFFrame, uCEFv8Value, uCEFTaskRunner, uCEFv8Exception;
class function TCefv8ContextRef.Current: ICefv8Context;
begin
Result := UnWrap(cef_v8context_get_current_context());
end;
function TCefv8ContextRef.Enter: Boolean;
begin
Result := PCefv8Context(FData)^.enter(PCefv8Context(FData)) <> 0;
end;
class function TCefv8ContextRef.Entered: ICefv8Context;
begin
Result := UnWrap(cef_v8context_get_entered_context());
end;
function TCefv8ContextRef.Exit: Boolean;
begin
Result := PCefv8Context(FData)^.exit(PCefv8Context(FData)) <> 0;
end;
function TCefv8ContextRef.GetBrowser: ICefBrowser;
begin
Result := TCefBrowserRef.UnWrap(PCefv8Context(FData)^.get_browser(PCefv8Context(FData)));
end;
function TCefv8ContextRef.GetFrame: ICefFrame;
begin
Result := TCefFrameRef.UnWrap(PCefv8Context(FData)^.get_frame(PCefv8Context(FData)))
end;
function TCefv8ContextRef.GetGlobal: ICefv8Value;
begin
Result := TCefv8ValueRef.UnWrap(PCefv8Context(FData)^.get_global(PCefv8Context(FData)));
end;
function TCefv8ContextRef.GetTaskRunner: ICefTaskRunner;
begin
Result := TCefTaskRunnerRef.UnWrap(PCefv8Context(FData)^.get_task_runner(PCefv8Context(FData)));
end;
function TCefv8ContextRef.IsSame(const that: ICefv8Context): Boolean;
begin
Result := PCefv8Context(FData)^.is_same(PCefv8Context(FData), CefGetData(that)) <> 0;
end;
function TCefv8ContextRef.IsValid: Boolean;
begin
Result := PCefv8Context(FData)^.is_valid(PCefv8Context(FData)) <> 0;
end;
function TCefv8ContextRef.Eval(const code : ustring;
const script_url : ustring;
start_line : integer;
var retval : ICefv8Value;
var exception : ICefV8Exception): Boolean;
var
TempCode, TempScriptURL : TCefString;
TempValue : PCefv8Value;
TempException : PCefV8Exception;
begin
TempCode := CefString(code);
TempScriptURL := CefString(script_url);
TempValue := nil;
TempException := nil;
Result := (PCefv8Context(FData)^.eval(PCefv8Context(FData), @TempCode, @TempScriptURL, start_line, TempValue, TempException) <> 0);
retval := TCefv8ValueRef.UnWrap(TempValue);
exception := TCefV8ExceptionRef.UnWrap(TempException);
end;
class function TCefv8ContextRef.UnWrap(data: Pointer): ICefv8Context;
begin
if (data <> nil) then
Result := Create(data) as ICefv8Context
else
Result := nil;
end;
end.