mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
624 lines
32 KiB
ObjectPascal
624 lines
32 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 CEF 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 © 2022 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 uCEFRequestHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
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type
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TCefRequestHandlerOwn = class(TCefBaseRefCountedOwn, ICefRequestHandler)
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protected
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function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; user_gesture, isRedirect: Boolean): Boolean; virtual;
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function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; virtual;
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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;
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function GetAuthCredentials(const browser: ICefBrowser; const originUrl: ustring; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; virtual;
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function OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefCallback): Boolean; virtual;
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function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback): Boolean; virtual;
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function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; virtual;
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procedure OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); virtual;
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procedure OnRenderViewReady(const browser: ICefBrowser); virtual;
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procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); virtual;
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procedure OnDocumentAvailableInMainFrame(const browser: ICefBrowser); virtual;
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procedure RemoveReferences; virtual;
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public
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constructor Create; virtual;
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end;
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TCustomRequestHandler = class(TCefRequestHandlerOwn)
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protected
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FEvents : Pointer;
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function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; user_gesture, isRedirect: Boolean): Boolean; override;
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function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; override;
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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;
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function GetAuthCredentials(const browser: ICefBrowser; const originUrl: ustring; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; override;
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function OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefCallback): Boolean; override;
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function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback): Boolean; override;
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function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; override;
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procedure OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); override;
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procedure OnRenderViewReady(const browser: ICefBrowser); override;
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procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); override;
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procedure OnDocumentAvailableInMainFrame(const browser: ICefBrowser); override;
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public
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constructor Create(const events : IChromiumEvents); reintroduce; virtual;
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procedure BeforeDestruction; override;
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procedure RemoveReferences; override;
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end;
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implementation
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uses
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{$IFDEF DELPHI16_UP}
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{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.SysUtils,
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{$ELSE}
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{$IFDEF MSWINDOWS}Windows,{$ENDIF} SysUtils,
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{$ENDIF}
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uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFFrame, uCEFRequest, uCEFCallback,
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uCEFResponse, uCEFAuthCallback, uCEFSslInfo, uCEFSelectClientCertificateCallback, uCEFX509Certificate,
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uCEFApplicationCore;
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function cef_request_handler_on_before_browse(self : PCefRequestHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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request : PCefRequest;
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user_gesture : Integer;
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isRedirect : Integer): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).OnBeforeBrowse(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefRequestRef.UnWrap(request),
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user_gesture <> 0,
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isRedirect <> 0));
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end;
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function cef_request_handler_on_open_urlfrom_tab( self : PCefRequestHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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const target_url : PCefString;
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target_disposition : TCefWindowOpenDisposition;
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user_gesture : Integer): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).OnOpenUrlFromTab(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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CefString(target_url),
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target_disposition,
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user_gesture <> 0));
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end;
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function cef_request_handler_get_resource_request_handler( self : PCefRequestHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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request : PCefRequest;
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is_navigation : Integer;
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is_download : Integer;
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const request_initiator : PCefString;
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disable_default_handling : PInteger): PCefResourceRequestHandler; stdcall;
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var
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TempObject : TObject;
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TempDisableDefHandling : boolean;
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TempResourceRequestHandler : ICefResourceRequestHandler;
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begin
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Result := nil;
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TempResourceRequestHandler := nil;
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TempObject := CefGetObject(self);
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TempDisableDefHandling := disable_default_handling^ <> 0;
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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try
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TCefRequestHandlerOwn(TempObject).GetResourceRequestHandler(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefRequestRef.UnWrap(request),
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is_navigation <> 0,
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is_download <> 0,
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CefString(request_initiator),
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TempDisableDefHandling,
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TempResourceRequestHandler);
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Result := CefGetData(TempResourceRequestHandler);
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disable_default_handling^ := Ord(TempDisableDefHandling);
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finally
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TempResourceRequestHandler := nil;
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end;
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end;
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function cef_request_handler_get_auth_credentials( self : PCefRequestHandler;
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browser : PCefBrowser;
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const origin_url : PCefString;
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isProxy : Integer;
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const host : PCefString;
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port : Integer;
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const realm : PCefString;
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const scheme : PCefString;
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callback : PCefAuthCallback): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).GetAuthCredentials(TCefBrowserRef.UnWrap(browser),
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CefString(origin_url),
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isProxy <> 0,
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CefString(host),
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port,
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CefString(realm),
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CefString(scheme),
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TCefAuthCallbackRef.UnWrap(callback)));
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end;
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function cef_request_handler_on_quota_request( self : PCefRequestHandler;
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browser : PCefBrowser;
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const origin_url : PCefString;
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new_size : Int64;
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callback : PCefCallback): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).OnQuotaRequest(TCefBrowserRef.UnWrap(browser),
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CefString(origin_url),
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new_size,
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TCefCallbackRef.UnWrap(callback)));
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end;
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function cef_request_handler_on_certificate_error( self : PCefRequestHandler;
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browser : PCefBrowser;
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cert_error : TCefErrorcode;
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const request_url : PCefString;
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ssl_info : PCefSslInfo;
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callback : PCefCallback): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).OnCertificateError(TCefBrowserRef.UnWrap(browser),
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cert_error,
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CefString(request_url),
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TCefSslInfoRef.UnWrap(ssl_info),
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TCefCallbackRef.UnWrap(callback)));
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end;
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procedure cef_request_handler_on_plugin_crashed( self : PCefRequestHandler;
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browser : PCefBrowser;
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const plugin_path : PCefString); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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TCefRequestHandlerOwn(TempObject).OnPluginCrashed(TCefBrowserRef.UnWrap(browser),
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CefString(plugin_path));
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end;
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procedure cef_request_handler_on_render_view_ready(self : PCefRequestHandler;
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browser : PCefBrowser); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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TCefRequestHandlerOwn(TempObject).OnRenderViewReady(TCefBrowserRef.UnWrap(browser));
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end;
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procedure cef_request_handler_on_render_process_terminated(self : PCefRequestHandler;
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browser : PCefBrowser;
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status : TCefTerminationStatus); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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TCefRequestHandlerOwn(TempObject).OnRenderProcessTerminated(TCefBrowserRef.UnWrap(browser),
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status);
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end;
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procedure cef_request_handler_on_document_available_in_main_frame(self : PCefRequestHandler;
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browser : PCefBrowser); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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TCefRequestHandlerOwn(TempObject).OnDocumentAvailableInMainFrame(TCefBrowserRef.UnWrap(browser));
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end;
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function cef_request_handler_on_select_client_certificate( self : PCefRequestHandler;
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browser : PCefBrowser;
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isProxy : integer;
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const host : PCefString;
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port : integer;
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certificatesCount : NativeUInt;
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const certificates : PPCefX509Certificate;
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callback : PCefSelectClientCertificateCallback): integer; stdcall;
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var
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TempCertArray : TCefX509CertificateArray;
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i : NativeUInt;
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TempObject : TObject;
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begin
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TempCertArray := nil;
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Result := Ord(False);
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try
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try
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if (certificatesCount > 0) and (certificates <> nil) then
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begin
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SetLength(TempCertArray, certificatesCount);
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i := 0;
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while (i < certificatesCount) do
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begin
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TempCertArray[i] := TCEFX509CertificateRef.UnWrap(PPointerArray(certificates)^[i]);
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inc(i);
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end;
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefRequestHandlerOwn) then
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Result := Ord(TCefRequestHandlerOwn(TempObject).OnSelectClientCertificate(TCefBrowserRef.UnWrap(browser),
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(isProxy <> 0),
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CefString(host),
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port,
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certificatesCount,
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TempCertArray,
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TCefSelectClientCertificateCallbackRef.UnWrap(callback)));
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i := 0;
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while (i < certificatesCount) do
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begin
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TempCertArray[i] := nil;
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inc(i);
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end;
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end;
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except
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on e : exception do
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if CustomExceptionHandler('uCEFRequestHandler.cef_request_handler_on_select_client_certificate', e) then raise;
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end;
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finally
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if (TempCertArray <> nil) then
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begin
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Finalize(TempCertArray);
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TempCertArray := nil;
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end;
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end;
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end;
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constructor TCefRequestHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefRequestHandler));
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with PCefRequestHandler(FData)^ do
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begin
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on_before_browse := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_before_browse;
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on_open_urlfrom_tab := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_open_urlfrom_tab;
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get_resource_request_handler := {$IFDEF FPC}@{$ENDIF}cef_request_handler_get_resource_request_handler;
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get_auth_credentials := {$IFDEF FPC}@{$ENDIF}cef_request_handler_get_auth_credentials;
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on_quota_request := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_quota_request;
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on_certificate_error := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_certificate_error;
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on_select_client_certificate := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_select_client_certificate;
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on_plugin_crashed := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_plugin_crashed;
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on_render_view_ready := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_render_view_ready;
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on_render_process_terminated := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_render_process_terminated;
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on_document_available_in_main_frame := {$IFDEF FPC}@{$ENDIF}cef_request_handler_on_document_available_in_main_frame;
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end;
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end;
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function TCefRequestHandlerOwn.GetAuthCredentials(const browser : ICefBrowser;
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const originUrl : ustring;
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isProxy : Boolean;
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const host : ustring;
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port : Integer;
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const realm : ustring;
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const scheme : ustring;
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const callback : ICefAuthCallback): Boolean;
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begin
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Result := False;
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end;
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function TCefRequestHandlerOwn.OnBeforeBrowse(const browser : ICefBrowser;
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const frame : ICefFrame;
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const request : ICefRequest;
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user_gesture : Boolean;
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isRedirect : Boolean): Boolean;
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begin
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Result := False;
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end;
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function TCefRequestHandlerOwn.OnCertificateError(const browser : ICefBrowser;
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certError : TCefErrorcode;
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const requestUrl : ustring;
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const sslInfo : ICefSslInfo;
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const callback : ICefCallback): Boolean;
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begin
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Result := False;
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end;
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function TCefRequestHandlerOwn.OnSelectClientCertificate(const browser : ICefBrowser;
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isProxy : boolean;
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const host : ustring;
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port : integer;
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certificatesCount : NativeUInt;
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const certificates : TCefX509CertificateArray;
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const callback : ICefSelectClientCertificateCallback): boolean;
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begin
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Result := False;
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end;
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function TCefRequestHandlerOwn.OnOpenUrlFromTab(const browser : ICefBrowser;
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const frame : ICefFrame;
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const targetUrl : ustring;
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targetDisposition : TCefWindowOpenDisposition;
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userGesture : Boolean): Boolean;
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begin
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Result := False;
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end;
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procedure TCefRequestHandlerOwn.GetResourceRequestHandler(const browser : ICefBrowser;
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const frame : ICefFrame;
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const request : ICefRequest;
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is_navigation : boolean;
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is_download : boolean;
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const request_initiator : ustring;
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var disable_default_handling : boolean;
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var aResourceRequestHandler : ICefResourceRequestHandler);
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begin
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aResourceRequestHandler := nil;
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end;
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procedure TCefRequestHandlerOwn.OnPluginCrashed(const browser : ICefBrowser;
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const pluginPath : ustring);
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begin
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//
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end;
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function TCefRequestHandlerOwn.OnQuotaRequest(const browser : ICefBrowser;
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const originUrl : ustring;
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newSize : Int64;
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const callback : ICefCallback): Boolean;
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begin
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Result := False;
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end;
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procedure TCefRequestHandlerOwn.OnRenderProcessTerminated(const browser : ICefBrowser;
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status : TCefTerminationStatus);
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begin
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//
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end;
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procedure TCefRequestHandlerOwn.OnDocumentAvailableInMainFrame(const browser: ICefBrowser);
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begin
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//
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end;
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procedure TCefRequestHandlerOwn.OnRenderViewReady(const browser: ICefBrowser);
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begin
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//
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end;
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procedure TCefRequestHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomRequestHandler
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constructor TCustomRequestHandler.Create(const events : IChromiumEvents);
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begin
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inherited Create;
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FEvents := Pointer(events);
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end;
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procedure TCustomRequestHandler.BeforeDestruction;
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begin
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FEvents := nil;
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inherited BeforeDestruction;
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end;
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procedure TCustomRequestHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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function TCustomRequestHandler.GetAuthCredentials(const browser : ICefBrowser;
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const originUrl : ustring;
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isProxy : Boolean;
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const host : ustring;
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port : Integer;
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const realm : ustring;
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const scheme : ustring;
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const callback : ICefAuthCallback): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnGetAuthCredentials(browser, originUrl, isProxy, host, port, realm, scheme, callback)
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else
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Result := inherited GetAuthCredentials(browser, originUrl, isProxy, host, port, realm, scheme, callback);
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end;
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function TCustomRequestHandler.OnBeforeBrowse(const browser : ICefBrowser;
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const frame : ICefFrame;
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const request : ICefRequest;
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user_gesture : Boolean;
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isRedirect : Boolean): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnBeforeBrowse(browser, frame, request, user_gesture, isRedirect)
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else
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Result := inherited OnBeforeBrowse(browser, frame, request, user_gesture, isRedirect);
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end;
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function TCustomRequestHandler.OnCertificateError(const browser : ICefBrowser;
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certError : TCefErrorcode;
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const requestUrl : ustring;
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const sslInfo : ICefSslInfo;
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const callback : ICefCallback): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnCertificateError(browser, certError, requestUrl, sslInfo, callback)
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else
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Result := inherited OnCertificateError(browser, certError, requestUrl, sslInfo, callback);
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end;
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function TCustomRequestHandler.OnOpenUrlFromTab(const browser : ICefBrowser;
|
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const frame : ICefFrame;
|
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const targetUrl : ustring;
|
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targetDisposition : TCefWindowOpenDisposition;
|
|
userGesture : Boolean): Boolean;
|
|
begin
|
|
if (FEvents <> nil) then
|
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Result := IChromiumEvents(FEvents).doOnOpenUrlFromTab(browser, frame, targetUrl, targetDisposition, userGesture)
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else
|
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Result := inherited OnOpenUrlFromTab(browser, frame, targetUrl, targetDisposition, userGesture);
|
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end;
|
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|
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procedure TCustomRequestHandler.GetResourceRequestHandler(const browser : ICefBrowser;
|
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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.OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring);
|
|
begin
|
|
if (FEvents <> nil) then IChromiumEvents(FEvents).doOnPluginCrashed(browser, pluginPath);
|
|
end;
|
|
|
|
function TCustomRequestHandler.OnQuotaRequest(const browser : ICefBrowser;
|
|
const originUrl : ustring;
|
|
newSize : Int64;
|
|
const callback : ICefCallback): Boolean;
|
|
begin
|
|
if (FEvents <> nil) then
|
|
Result := IChromiumEvents(FEvents).doOnQuotaRequest(browser, originUrl, newSize, callback)
|
|
else
|
|
Result := inherited OnQuotaRequest(browser, originUrl, newSize, 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.
|