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Update to CEF 104.4.18
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salvadordf
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source/uCEFPermissionHandler.pas
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245
source/uCEFPermissionHandler.pas
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// ************************************************************************
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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 uCEFPermissionHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$I cef.inc}
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{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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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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TCefPermissionHandlerOwn = class(TCefBaseRefCountedOwn, ICefPermissionHandler)
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protected
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function OnRequestMediaAccessPermission(const browser: ICefBrowser; const frame: ICefFrame; const requesting_origin: ustring; requested_permissions: cardinal; const callback: ICefMediaAccessCallback): boolean; virtual;
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function OnShowPermissionPrompt(const browser: ICefBrowser; prompt_id: uint64; const requesting_origin: ustring; requested_permissions: cardinal; const callback: ICefPermissionPromptCallback): boolean; virtual;
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procedure OnDismissPermissionPrompt(const browser: ICefBrowser; prompt_id: uint64; result: TCefPermissionRequestResult); 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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TCustomPermissionHandler = class(TCefPermissionHandlerOwn)
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protected
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FEvents : Pointer;
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function OnRequestMediaAccessPermission(const browser: ICefBrowser; const frame: ICefFrame; const requesting_origin: ustring; requested_permissions: cardinal; const callback: ICefMediaAccessCallback): boolean; override;
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function OnShowPermissionPrompt(const browser: ICefBrowser; prompt_id: uint64; const requesting_origin: ustring; requested_permissions: cardinal; const callback: ICefPermissionPromptCallback): boolean; override;
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procedure OnDismissPermissionPrompt(const browser: ICefBrowser; prompt_id: uint64; result: TCefPermissionRequestResult); override;
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procedure RemoveReferences; override;
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public
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constructor Create(const events : IChromiumEvents); reintroduce;
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destructor Destroy; 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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System.SysUtils,
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{$ELSE}
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SysUtils,
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{$ENDIF}
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uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFFrame, uCEFPermissionPromptCallback, uCEFMediaAccessCallback;
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function cef_permission_handler_on_request_media_access_permission( self : PCefPermissionHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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const requesting_origin : PCefString;
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requested_permissions : cardinal;
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callback : PCefMediaAccessCallback): 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 TCefPermissionHandlerOwn) then
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Result := Ord(TCefPermissionHandlerOwn(TempObject).OnRequestMediaAccessPermission(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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CefString(requesting_origin),
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requested_permissions,
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TCefMediaAccessCallbackRef.UnWrap(callback)));
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end;
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function cef_permission_handler_on_show_permission_prompt( self : PCefPermissionHandler;
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browser : PCefBrowser;
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prompt_id : uint64;
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const requesting_origin : PCefString;
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requested_permissions : cardinal;
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callback : PCefPermissionPromptCallback): 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 TCefPermissionHandlerOwn) then
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Result := Ord(TCefPermissionHandlerOwn(TempObject).OnShowPermissionPrompt(TCefBrowserRef.UnWrap(browser),
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prompt_id,
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CefString(requesting_origin),
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requested_permissions,
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TCefPermissionPromptCallbackRef.UnWrap(callback)));
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end;
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procedure cef_permission_handler_on_dismiss_permission_prompt(self : PCefPermissionHandler;
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browser : PCefBrowser;
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prompt_id : uint64;
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result : TCefPermissionRequestResult); 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 TCefPermissionHandlerOwn) then
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TCefPermissionHandlerOwn(TempObject).OnDismissPermissionPrompt(TCefBrowserRef.UnWrap(browser),
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prompt_id,
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result);
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end;
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// TCefPermissionHandlerOwn
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constructor TCefPermissionHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefPermissionHandler));
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with PCefPermissionHandler(FData)^ do
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begin
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on_request_media_access_permission := {$IFDEF FPC}@{$ENDIF}cef_permission_handler_on_request_media_access_permission;
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on_show_permission_prompt := {$IFDEF FPC}@{$ENDIF}cef_permission_handler_on_show_permission_prompt;
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on_dismiss_permission_prompt := {$IFDEF FPC}@{$ENDIF}cef_permission_handler_on_dismiss_permission_prompt;
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end;
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end;
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function TCefPermissionHandlerOwn.OnRequestMediaAccessPermission(const browser : ICefBrowser;
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const frame : ICefFrame;
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const requesting_origin : ustring;
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requested_permissions : cardinal;
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const callback : ICefMediaAccessCallback): boolean;
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begin
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Result := False;
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end;
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function TCefPermissionHandlerOwn.OnShowPermissionPrompt(const browser : ICefBrowser;
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prompt_id : uint64;
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const requesting_origin : ustring;
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requested_permissions : cardinal;
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const callback : ICefPermissionPromptCallback): boolean;
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begin
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Result := False;
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end;
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procedure TCefPermissionHandlerOwn.OnDismissPermissionPrompt(const browser: ICefBrowser; prompt_id: uint64; result: TCefPermissionRequestResult);
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begin
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//
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end;
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procedure TCefPermissionHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomPermissionHandler
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constructor TCustomPermissionHandler.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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destructor TCustomPermissionHandler.Destroy;
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begin
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RemoveReferences;
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inherited Destroy;
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end;
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function TCustomPermissionHandler.OnRequestMediaAccessPermission(const browser : ICefBrowser;
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const frame : ICefFrame;
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const requesting_origin : ustring;
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requested_permissions : cardinal;
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const callback : ICefMediaAccessCallback): boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnRequestMediaAccessPermission(browser, frame, requesting_origin, requested_permissions, callback)
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else
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Result := inherited OnRequestMediaAccessPermission(browser, frame, requesting_origin, requested_permissions, callback);
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end;
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function TCustomPermissionHandler.OnShowPermissionPrompt(const browser : ICefBrowser;
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prompt_id : uint64;
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const requesting_origin : ustring;
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requested_permissions : cardinal;
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const callback : ICefPermissionPromptCallback): boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnShowPermissionPrompt(browser, prompt_id, requesting_origin, requested_permissions, callback)
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else
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Result := inherited OnShowPermissionPrompt(browser, prompt_id, requesting_origin, requested_permissions, callback);
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end;
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procedure TCustomPermissionHandler.OnDismissPermissionPrompt(const browser : ICefBrowser;
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prompt_id : uint64;
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result : TCefPermissionRequestResult);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnDismissPermissionPrompt(browser, prompt_id, result);
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end;
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procedure TCustomPermissionHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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end.
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