// ************************************************************************
// ***************************** 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 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 uCEFExtensionHandler;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefExtensionHandlerRef = class(TCefBaseRefCountedRef, ICefExtensionHandler)
protected
procedure OnExtensionLoadFailed(result: TCefErrorcode);
procedure OnExtensionLoaded(const extension: ICefExtension);
procedure OnExtensionUnloaded(const extension: ICefExtension);
function OnBeforeBackgroundBrowser(const extension: ICefExtension; const url: ustring; var client: ICefClient; var settings: TCefBrowserSettings) : boolean;
function OnBeforeBrowser(const extension: ICefExtension; const browser, active_browser: ICefBrowser; index: Integer; const url: ustring; active: boolean; var windowInfo: TCefWindowInfo; var client: ICefClient; var settings: TCefBrowserSettings) : boolean;
function GetActiveBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean): ICefBrowser;
function CanAccessBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean; const target_browser: ICefBrowser): boolean;
function GetExtensionResource(const extension: ICefExtension; const browser: ICefBrowser; const file_: ustring; const callback: ICefGetExtensionResourceCallback): boolean;
public
class function UnWrap(data: Pointer): ICefExtensionHandler;
end;
TCefExtensionHandlerOwn = class(TCefBaseRefCountedOwn, ICefExtensionHandler)
protected
procedure OnExtensionLoadFailed(result: TCefErrorcode); virtual;
procedure OnExtensionLoaded(const extension: ICefExtension); virtual;
procedure OnExtensionUnloaded(const extension: ICefExtension); virtual;
function OnBeforeBackgroundBrowser(const extension: ICefExtension; const url: ustring; var client: ICefClient; var settings: TCefBrowserSettings) : boolean; virtual;
function OnBeforeBrowser(const extension: ICefExtension; const browser, active_browser: ICefBrowser; index: Integer; const url: ustring; active: boolean; var windowInfo: TCefWindowInfo; var client: ICefClient; var settings: TCefBrowserSettings) : boolean;
function GetActiveBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean): ICefBrowser; virtual;
function CanAccessBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean; const target_browser: ICefBrowser): boolean; virtual;
function GetExtensionResource(const extension: ICefExtension; const browser: ICefBrowser; const file_: ustring; const callback: ICefGetExtensionResourceCallback): boolean; virtual;
public
constructor Create; virtual;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions, uCEFGetExtensionResourceCallback, uCEFExtension, uCEFBrowser, uCEFClient;
// ***************************************************************************
// ************************ TCefExtensionHandlerRef **************************
// ***************************************************************************
procedure TCefExtensionHandlerRef.OnExtensionLoadFailed(result: TCefErrorcode);
begin
end;
procedure TCefExtensionHandlerRef.OnExtensionLoaded(const extension: ICefExtension);
begin
end;
procedure TCefExtensionHandlerRef.OnExtensionUnloaded(const extension: ICefExtension);
begin
end;
function TCefExtensionHandlerRef.OnBeforeBackgroundBrowser(const extension : ICefExtension;
const url : ustring;
var client : ICefClient;
var settings : TCefBrowserSettings) : boolean;
begin
Result := False;
end;
function TCefExtensionHandlerRef.OnBeforeBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
const active_browser : ICefBrowser;
index : Integer;
const url : ustring;
active : boolean;
var windowInfo : TCefWindowInfo;
var client : ICefClient;
var settings : TCefBrowserSettings) : boolean;
begin
Result := True;
end;
function TCefExtensionHandlerRef.GetActiveBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
include_incognito : boolean): ICefBrowser;
begin
Result := TCefBrowserRef.UnWrap(PCefExtensionHandler(FData)^.get_active_browser(PCefExtensionHandler(FData),
CefGetData(extension),
CefGetData(browser),
Ord(include_incognito)));
end;
function TCefExtensionHandlerRef.CanAccessBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
include_incognito : boolean;
const target_browser : ICefBrowser): boolean;
begin
Result := PCefExtensionHandler(FData)^.can_access_browser(PCefExtensionHandler(FData),
CefGetData(extension),
CefGetData(browser),
Ord(include_incognito),
CefGetData(target_browser)) <> 0;
end;
function TCefExtensionHandlerRef.GetExtensionResource(const extension : ICefExtension;
const browser : ICefBrowser;
const file_ : ustring;
const callback : ICefGetExtensionResourceCallback): boolean;
var
TempFile : TCefString;
begin
TempFile := CefString(file_);
Result := PCefExtensionHandler(FData)^.get_extension_resource(PCefExtensionHandler(FData),
CefGetData(extension),
CefGetData(browser),
@TempFile,
CefGetData(callback)) <> 0;
end;
class function TCefExtensionHandlerRef.UnWrap(data: Pointer): ICefExtensionHandler;
begin
if (data <> nil) then
Result := Create(data) as ICefExtensionHandler
else
Result := nil;
end;
// ***************************************************************************
// ************************ TCefExtensionHandlerOwn **************************
// ***************************************************************************
procedure cef_extension_handler_on_extension_load_failed(self : PCefExtensionHandler;
result : TCefErrorcode); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
TCefExtensionHandlerOwn(TempObject).OnExtensionLoadFailed(result);
end;
procedure cef_extension_handler_on_extension_loaded(self : PCefExtensionHandler;
extension : PCefExtension); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
TCefExtensionHandlerOwn(TempObject).OnExtensionLoaded(TCefExtensionRef.UnWrap(extension));
end;
procedure cef_extension_handler_on_extension_unloaded(self : PCefExtensionHandler;
extension : PCefExtension); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
TCefExtensionHandlerOwn(TempObject).OnExtensionUnloaded(TCefExtensionRef.UnWrap(extension));
end;
function cef_extension_handler_on_before_background_browser( self : PCefExtensionHandler;
extension : PCefExtension;
const url : PCefString;
var client : PCefClient;
settings : PCefBrowserSettings) : Integer; stdcall;
var
TempClient : ICefClient;
TempObject : TObject;
begin
try
Result := Ord(True);
TempObject := CefGetObject(self);
TempClient := TCefClientRef.UnWrap(client);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
Result := Ord(TCefExtensionHandlerOwn(TempObject).OnBeforeBackgroundBrowser(TCefExtensionRef.UnWrap(extension),
CefString(url),
TempClient,
settings^));
if (TempClient = nil) then
client := nil
else
if not(TempClient.SameAs(client)) then
client := TempClient.Wrap;
finally
TempClient := nil;
end;
end;
function cef_extension_handler_on_before_browser( self : PCefExtensionHandler;
extension : PCefExtension;
browser : PCefBrowser;
active_browser : PCefBrowser;
index : Integer;
const url : PCefString;
active : Integer;
windowInfo : PCefWindowInfo;
var client : PCefClient;
settings : PCefBrowserSettings) : Integer; stdcall;
var
TempClient : ICefClient;
TempObject : TObject;
begin
try
Result := Ord(True);
TempObject := CefGetObject(self);
TempClient := TCefClientRef.UnWrap(client);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
Result := Ord(TCefExtensionHandlerOwn(TempObject).OnBeforeBrowser(TCefExtensionRef.UnWrap(extension),
TCefBrowserRef.UnWrap(browser),
TCefBrowserRef.UnWrap(active_browser),
index,
CefString(url),
active <> 0,
windowInfo^,
TempClient,
settings^));
if (TempClient = nil) then
client := nil
else
if not(TempClient.SameAs(client)) then
client := TempClient.Wrap;
finally
TempClient := nil;
end;
end;
function cef_extension_handler_get_active_browser(self : PCefExtensionHandler;
extension : PCefExtension;
browser : PCefBrowser;
include_incognito : Integer): PCefBrowser; stdcall;
var
TempObject : TObject;
begin
Result := nil;
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
Result := CefGetData(TCefExtensionHandlerOwn(TempObject).GetActiveBrowser(TCefExtensionRef.UnWrap(extension),
TCefBrowserRef.UnWrap(browser),
include_incognito <> 0));
end;
function cef_extension_handler_can_access_browser(self : PCefExtensionHandler;
extension : PCefExtension;
browser : PCefBrowser;
include_incognito : Integer;
target_browser : PCefBrowser): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(True);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
Result := Ord(TCefExtensionHandlerOwn(TempObject).CanAccessBrowser(TCefExtensionRef.UnWrap(extension),
TCefBrowserRef.UnWrap(browser),
include_incognito <> 0,
TCefBrowserRef.UnWrap(target_browser)));
end;
function cef_extension_handler_get_extension_resource( self : PCefExtensionHandler;
extension : PCefExtension;
browser : PCefBrowser;
const file_ : PCefString;
callback : PCefGetExtensionResourceCallback): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefExtensionHandlerOwn) then
Result := Ord(TCefExtensionHandlerOwn(TempObject).GetExtensionResource(TCefExtensionRef.UnWrap(extension),
TCefBrowserRef.UnWrap(browser),
CefString(file_),
TCefGetExtensionResourceCallbackRef.UnWrap(callback)));
end;
constructor TCefExtensionHandlerOwn.Create;
begin
inherited CreateData(SizeOf(TCefExtensionHandler));
with PCefExtensionHandler(FData)^ do
begin
on_extension_load_failed := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_on_extension_load_failed;
on_extension_loaded := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_on_extension_loaded;
on_extension_unloaded := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_on_extension_unloaded;
on_before_background_browser := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_on_before_background_browser;
on_before_browser := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_on_before_browser;
get_active_browser := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_get_active_browser;
can_access_browser := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_can_access_browser;
get_extension_resource := {$IFDEF FPC}@{$ENDIF}cef_extension_handler_get_extension_resource;
end;
end;
procedure TCefExtensionHandlerOwn.OnExtensionLoadFailed(result: TCefErrorcode);
begin
end;
procedure TCefExtensionHandlerOwn.OnExtensionLoaded(const extension: ICefExtension);
begin
end;
procedure TCefExtensionHandlerOwn.OnExtensionUnloaded(const extension: ICefExtension);
begin
end;
function TCefExtensionHandlerOwn.OnBeforeBackgroundBrowser(const extension : ICefExtension;
const url : ustring;
var client : ICefClient;
var settings : TCefBrowserSettings) : boolean;
begin
Result := True;
end;
function TCefExtensionHandlerOwn.OnBeforeBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
const active_browser : ICefBrowser;
index : Integer;
const url : ustring;
active : boolean;
var windowInfo : TCefWindowInfo;
var client : ICefClient;
var settings : TCefBrowserSettings) : boolean;
begin
Result := True;
end;
function TCefExtensionHandlerOwn.GetActiveBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
include_incognito : boolean): ICefBrowser;
begin
Result := nil;
end;
function TCefExtensionHandlerOwn.CanAccessBrowser(const extension : ICefExtension;
const browser : ICefBrowser;
include_incognito : boolean;
const target_browser : ICefBrowser): boolean;
begin
Result := True;
end;
function TCefExtensionHandlerOwn.GetExtensionResource(const extension : ICefExtension;
const browser : ICefBrowser;
const file_ : ustring;
const callback : ICefGetExtensionResourceCallback): boolean;
begin
Result := False;
end;
end.