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CEF4Delphi/source/uCEFRequestHandler.pas
salvadordf ca8bc9dff4 Added cef4delphi.chm help file
Added the PDS file to extract the HTML Help files using PasDoc
Added more XML documentation
Fixed some XML errors.
Removed the license copy from the pas units.
Updated the LICENSE.md file
2023-08-09 19:38:57 +02:00

520 lines
27 KiB
ObjectPascal

unit uCEFRequestHandler;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$I cef.inc}
{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefRequestHandlerOwn = class(TCefBaseRefCountedOwn, ICefRequestHandler)
protected
function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; user_gesture, isRedirect: Boolean): Boolean; virtual;
function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; virtual;
procedure GetResourceRequestHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; is_navigation, is_download: boolean; const request_initiator: ustring; var disable_default_handling: boolean; var aResourceRequestHandler : ICefResourceRequestHandler); virtual;
function GetAuthCredentials(const browser: ICefBrowser; const originUrl: ustring; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; virtual;
function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback): Boolean; virtual;
function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; virtual;
procedure OnRenderViewReady(const browser: ICefBrowser); virtual;
procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); virtual;
procedure OnDocumentAvailableInMainFrame(const browser: ICefBrowser); virtual;
procedure RemoveReferences; virtual;
public
constructor Create; virtual;
end;
TCustomRequestHandler = class(TCefRequestHandlerOwn)
protected
FEvents : Pointer;
function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; user_gesture, isRedirect: Boolean): Boolean; override;
function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; override;
procedure GetResourceRequestHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; is_navigation, is_download: boolean; const request_initiator: ustring; var disable_default_handling: boolean; var aResourceRequestHandler : ICefResourceRequestHandler); override;
function GetAuthCredentials(const browser: ICefBrowser; const originUrl: ustring; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; override;
function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback): Boolean; override;
function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; override;
procedure OnRenderViewReady(const browser: ICefBrowser); override;
procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); override;
procedure OnDocumentAvailableInMainFrame(const browser: ICefBrowser); override;
public
constructor Create(const events : IChromiumEvents); reintroduce; virtual;
procedure BeforeDestruction; override;
procedure RemoveReferences; override;
end;
implementation
uses
{$IFDEF DELPHI16_UP}
{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.SysUtils,
{$ELSE}
{$IFDEF MSWINDOWS}Windows,{$ENDIF} SysUtils,
{$ENDIF}
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFFrame, uCEFRequest, uCEFCallback,
uCEFResponse, uCEFAuthCallback, uCEFSslInfo, uCEFSelectClientCertificateCallback, uCEFX509Certificate,
uCEFApplicationCore;
function cef_request_handler_on_before_browse(self : PCefRequestHandler;
browser : PCefBrowser;
frame : PCefFrame;
request : PCefRequest;
user_gesture : Integer;
isRedirect : Integer): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
Result := Ord(TCefRequestHandlerOwn(TempObject).OnBeforeBrowse(TCefBrowserRef.UnWrap(browser),
TCefFrameRef.UnWrap(frame),
TCefRequestRef.UnWrap(request),
user_gesture <> 0,
isRedirect <> 0));
end;
function cef_request_handler_on_open_urlfrom_tab( self : PCefRequestHandler;
browser : PCefBrowser;
frame : PCefFrame;
const target_url : PCefString;
target_disposition : TCefWindowOpenDisposition;
user_gesture : Integer): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
Result := Ord(TCefRequestHandlerOwn(TempObject).OnOpenUrlFromTab(TCefBrowserRef.UnWrap(browser),
TCefFrameRef.UnWrap(frame),
CefString(target_url),
target_disposition,
user_gesture <> 0));
end;
function cef_request_handler_get_resource_request_handler( self : PCefRequestHandler;
browser : PCefBrowser;
frame : PCefFrame;
request : PCefRequest;
is_navigation : Integer;
is_download : Integer;
const request_initiator : PCefString;
disable_default_handling : PInteger): PCefResourceRequestHandler; stdcall;
var
TempObject : TObject;
TempDisableDefHandling : boolean;
TempResourceRequestHandler : ICefResourceRequestHandler;
begin
Result := nil;
TempResourceRequestHandler := nil;
TempObject := CefGetObject(self);
TempDisableDefHandling := disable_default_handling^ <> 0;
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
try
TCefRequestHandlerOwn(TempObject).GetResourceRequestHandler(TCefBrowserRef.UnWrap(browser),
TCefFrameRef.UnWrap(frame),
TCefRequestRef.UnWrap(request),
is_navigation <> 0,
is_download <> 0,
CefString(request_initiator),
TempDisableDefHandling,
TempResourceRequestHandler);
Result := CefGetData(TempResourceRequestHandler);
disable_default_handling^ := Ord(TempDisableDefHandling);
finally
TempResourceRequestHandler := nil;
end;
end;
function cef_request_handler_get_auth_credentials( self : PCefRequestHandler;
browser : PCefBrowser;
const origin_url : PCefString;
isProxy : Integer;
const host : PCefString;
port : Integer;
const realm : PCefString;
const scheme : PCefString;
callback : PCefAuthCallback): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
Result := Ord(TCefRequestHandlerOwn(TempObject).GetAuthCredentials(TCefBrowserRef.UnWrap(browser),
CefString(origin_url),
isProxy <> 0,
CefString(host),
port,
CefString(realm),
CefString(scheme),
TCefAuthCallbackRef.UnWrap(callback)));
end;
function cef_request_handler_on_certificate_error( self : PCefRequestHandler;
browser : PCefBrowser;
cert_error : TCefErrorcode;
const request_url : PCefString;
ssl_info : PCefSslInfo;
callback : PCefCallback): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
Result := Ord(TCefRequestHandlerOwn(TempObject).OnCertificateError(TCefBrowserRef.UnWrap(browser),
cert_error,
CefString(request_url),
TCefSslInfoRef.UnWrap(ssl_info),
TCefCallbackRef.UnWrap(callback)));
end;
procedure cef_request_handler_on_render_view_ready(self : PCefRequestHandler;
browser : PCefBrowser); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
TCefRequestHandlerOwn(TempObject).OnRenderViewReady(TCefBrowserRef.UnWrap(browser));
end;
procedure cef_request_handler_on_render_process_terminated(self : PCefRequestHandler;
browser : PCefBrowser;
status : TCefTerminationStatus); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
TCefRequestHandlerOwn(TempObject).OnRenderProcessTerminated(TCefBrowserRef.UnWrap(browser),
status);
end;
procedure cef_request_handler_on_document_available_in_main_frame(self : PCefRequestHandler;
browser : PCefBrowser); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
TCefRequestHandlerOwn(TempObject).OnDocumentAvailableInMainFrame(TCefBrowserRef.UnWrap(browser));
end;
function cef_request_handler_on_select_client_certificate( self : PCefRequestHandler;
browser : PCefBrowser;
isProxy : integer;
const host : PCefString;
port : integer;
certificatesCount : NativeUInt;
const certificates : PPCefX509Certificate;
callback : PCefSelectClientCertificateCallback): integer; stdcall;
var
TempCertArray : TCefX509CertificateArray;
i : NativeUInt;
TempObject : TObject;
begin
TempCertArray := nil;
Result := Ord(False);
try
try
if (certificatesCount > 0) and (certificates <> nil) then
begin
SetLength(TempCertArray, certificatesCount);
i := 0;
while (i < certificatesCount) do
begin
TempCertArray[i] := TCEFX509CertificateRef.UnWrap(PPointerArray(certificates)^[i]);
inc(i);
end;
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
Result := Ord(TCefRequestHandlerOwn(TempObject).OnSelectClientCertificate(TCefBrowserRef.UnWrap(browser),
(isProxy <> 0),
CefString(host),
port,
certificatesCount,
TempCertArray,
TCefSelectClientCertificateCallbackRef.UnWrap(callback)));
i := 0;
while (i < certificatesCount) do
begin
TempCertArray[i] := nil;
inc(i);
end;
end;
except
on e : exception do
if CustomExceptionHandler('uCEFRequestHandler.cef_request_handler_on_select_client_certificate', e) then raise;
end;
finally
if (TempCertArray <> nil) then
begin
Finalize(TempCertArray);
TempCertArray := nil;
end;
end;
end;
constructor TCefRequestHandlerOwn.Create;
begin
inherited CreateData(SizeOf(TCefRequestHandler));
with PCefRequestHandler(FData)^ do
begin
on_before_browse := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_before_browse;
on_open_urlfrom_tab := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_open_urlfrom_tab;
get_resource_request_handler := {$IFDEF FPC}@{$ENDIF}cef_request_handler_get_resource_request_handler;
get_auth_credentials := {$IFDEF FPC}@{$ENDIF}cef_request_handler_get_auth_credentials;
on_certificate_error := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_certificate_error;
on_select_client_certificate := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_select_client_certificate;
on_render_view_ready := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_render_view_ready;
on_render_process_terminated := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_render_process_terminated;
on_document_available_in_main_frame := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_document_available_in_main_frame;
end;
end;
function TCefRequestHandlerOwn.GetAuthCredentials(const browser : ICefBrowser;
const originUrl : ustring;
isProxy : Boolean;
const host : ustring;
port : Integer;
const realm : ustring;
const scheme : ustring;
const callback : ICefAuthCallback): Boolean;
begin
Result := False;
end;
function TCefRequestHandlerOwn.OnBeforeBrowse(const browser : ICefBrowser;
const frame : ICefFrame;
const request : ICefRequest;
user_gesture : Boolean;
isRedirect : Boolean): Boolean;
begin
Result := False;
end;
function TCefRequestHandlerOwn.OnCertificateError(const browser : ICefBrowser;
certError : TCefErrorcode;
const requestUrl : ustring;
const sslInfo : ICefSslInfo;
const callback : ICefCallback): Boolean;
begin
Result := False;
end;
function TCefRequestHandlerOwn.OnSelectClientCertificate(const browser : ICefBrowser;
isProxy : boolean;
const host : ustring;
port : integer;
certificatesCount : NativeUInt;
const certificates : TCefX509CertificateArray;
const callback : ICefSelectClientCertificateCallback): boolean;
begin
Result := False;
end;
function TCefRequestHandlerOwn.OnOpenUrlFromTab(const browser : ICefBrowser;
const frame : ICefFrame;
const targetUrl : ustring;
targetDisposition : TCefWindowOpenDisposition;
userGesture : Boolean): Boolean;
begin
Result := False;
end;
procedure TCefRequestHandlerOwn.GetResourceRequestHandler(const browser : ICefBrowser;
const frame : ICefFrame;
const request : ICefRequest;
is_navigation : boolean;
is_download : boolean;
const request_initiator : ustring;
var disable_default_handling : boolean;
var aResourceRequestHandler : ICefResourceRequestHandler);
begin
aResourceRequestHandler := nil;
end;
procedure TCefRequestHandlerOwn.OnRenderProcessTerminated(const browser : ICefBrowser;
status : TCefTerminationStatus);
begin
//
end;
procedure TCefRequestHandlerOwn.OnDocumentAvailableInMainFrame(const browser: ICefBrowser);
begin
//
end;
procedure TCefRequestHandlerOwn.OnRenderViewReady(const browser: ICefBrowser);
begin
//
end;
procedure TCefRequestHandlerOwn.RemoveReferences;
begin
//
end;
// TCustomRequestHandler
constructor TCustomRequestHandler.Create(const events : IChromiumEvents);
begin
inherited Create;
FEvents := Pointer(events);
end;
procedure TCustomRequestHandler.BeforeDestruction;
begin
FEvents := nil;
inherited BeforeDestruction;
end;
procedure TCustomRequestHandler.RemoveReferences;
begin
FEvents := nil;
end;
function TCustomRequestHandler.GetAuthCredentials(const browser : ICefBrowser;
const originUrl : ustring;
isProxy : Boolean;
const host : ustring;
port : Integer;
const realm : ustring;
const scheme : ustring;
const callback : ICefAuthCallback): Boolean;
begin
if (FEvents <> nil) then
Result := IChromiumEvents(FEvents).doOnGetAuthCredentials(browser, originUrl, isProxy, host, port, realm, scheme, callback)
else
Result := inherited GetAuthCredentials(browser, originUrl, isProxy, host, port, realm, scheme, callback);
end;
function TCustomRequestHandler.OnBeforeBrowse(const browser : ICefBrowser;
const frame : ICefFrame;
const request : ICefRequest;
user_gesture : Boolean;
isRedirect : Boolean): Boolean;
begin
if (FEvents <> nil) then
Result := IChromiumEvents(FEvents).doOnBeforeBrowse(browser, frame, request, user_gesture, isRedirect)
else
Result := inherited OnBeforeBrowse(browser, frame, request, user_gesture, isRedirect);
end;
function TCustomRequestHandler.OnCertificateError(const browser : ICefBrowser;
certError : TCefErrorcode;
const requestUrl : ustring;
const sslInfo : ICefSslInfo;
const callback : ICefCallback): Boolean;
begin
if (FEvents <> nil) then
Result := IChromiumEvents(FEvents).doOnCertificateError(browser, certError, requestUrl, sslInfo, callback)
else
Result := inherited OnCertificateError(browser, certError, requestUrl, sslInfo, callback);
end;
function TCustomRequestHandler.OnOpenUrlFromTab(const browser : ICefBrowser;
const frame : ICefFrame;
const targetUrl : ustring;
targetDisposition : TCefWindowOpenDisposition;
userGesture : Boolean): Boolean;
begin
if (FEvents <> nil) then
Result := IChromiumEvents(FEvents).doOnOpenUrlFromTab(browser, frame, targetUrl, targetDisposition, userGesture)
else
Result := inherited OnOpenUrlFromTab(browser, frame, targetUrl, targetDisposition, userGesture);
end;
procedure TCustomRequestHandler.GetResourceRequestHandler(const browser : ICefBrowser;
const frame : ICefFrame;
const request : ICefRequest;
is_navigation : boolean;
is_download : boolean;
const request_initiator : ustring;
var disable_default_handling : boolean;
var aResourceRequestHandler : ICefResourceRequestHandler);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doGetResourceRequestHandler_ReqHdlr(browser,
frame,
request,
is_navigation,
is_download,
request_initiator,
disable_default_handling,
aResourceRequestHandler)
else
inherited GetResourceRequestHandler(browser,
frame,
request,
is_navigation,
is_download,
request_initiator,
disable_default_handling,
aResourceRequestHandler);
end;
function TCustomRequestHandler.OnSelectClientCertificate(const browser : ICefBrowser;
isProxy : boolean;
const host : ustring;
port : integer;
certificatesCount : NativeUInt;
const certificates : TCefX509CertificateArray;
const callback : ICefSelectClientCertificateCallback): boolean;
begin
if (FEvents <> nil) then
Result := IChromiumEvents(FEvents).doOnSelectClientCertificate(browser, isProxy, host, port, certificatesCount, certificates, callback)
else
Result := inherited OnSelectClientCertificate(browser, isProxy, host, port, certificatesCount, certificates, callback);
end;
procedure TCustomRequestHandler.OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnRenderProcessTerminated(browser, status);
end;
procedure TCustomRequestHandler.OnDocumentAvailableInMainFrame(const browser: ICefBrowser);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDocumentAvailableInMainFrame(browser);
end;
procedure TCustomRequestHandler.OnRenderViewReady(const browser: ICefBrowser);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnRenderViewReady(browser);
end;
end.