mirror of
https://github.com/salvadordf/CEF4Delphi.git
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303 lines
15 KiB
ObjectPascal
303 lines
15 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 CEF3 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 © 2017 Salvador Díaz 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 uCEFExtensionHandler;
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{$IFNDEF CPUX64}
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{$ALIGN ON}
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{$MINENUMSIZE 4}
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{$ENDIF}
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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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TCefExtensionHandlerRef = class(TCefBaseRefCountedRef, ICefExtensionHandler)
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protected
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procedure OnExtensionLoadFailed(result: TCefErrorcode);
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procedure OnExtensionLoaded(const extension: ICefExtension);
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procedure OnExtensionUnloaded(const extension: ICefExtension);
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function OnBeforeBackgroundBrowser(const extension: ICefExtension; const url: ustring; var client: ICefClient; var settings: TCefBrowserSettings) : boolean;
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function GetActiveBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean): ICefBrowser;
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function CanAccessBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean; const target_browser: ICefBrowser): boolean;
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function GetExtensionResource(const extension: ICefExtension; const browser: ICefBrowser; const file_: ustring; const callback: ICefGetExtensionResourceCallback): boolean;
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public
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class function UnWrap(data: Pointer): ICefExtensionHandler;
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end;
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TCefExtensionHandlerOwn = class(TCefBaseRefCountedOwn, ICefExtensionHandler)
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protected
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procedure OnExtensionLoadFailed(result: TCefErrorcode); virtual;
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procedure OnExtensionLoaded(const extension: ICefExtension); virtual;
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procedure OnExtensionUnloaded(const extension: ICefExtension); virtual;
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function OnBeforeBackgroundBrowser(const extension: ICefExtension; const url: ustring; var client: ICefClient; var settings: TCefBrowserSettings) : boolean; virtual;
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function GetActiveBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean): ICefBrowser; virtual;
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function CanAccessBrowser(const extension: ICefExtension; const browser: ICefBrowser; include_incognito: boolean; const target_browser: ICefBrowser): boolean; virtual;
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function GetExtensionResource(const extension: ICefExtension; const browser: ICefBrowser; const file_: ustring; const callback: ICefGetExtensionResourceCallback): boolean; virtual;
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public
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constructor Create; virtual;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFLibFunctions, uCEFGetExtensionResourceCallback, uCEFExtension, uCEFBrowser, uCEFClient;
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// ***************************************************************************
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// ************************ TCefExtensionHandlerRef **************************
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// ***************************************************************************
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procedure TCefExtensionHandlerRef.OnExtensionLoadFailed(result: TCefErrorcode);
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begin
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end;
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procedure TCefExtensionHandlerRef.OnExtensionLoaded(const extension: ICefExtension);
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begin
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end;
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procedure TCefExtensionHandlerRef.OnExtensionUnloaded(const extension: ICefExtension);
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begin
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end;
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function TCefExtensionHandlerRef.OnBeforeBackgroundBrowser(const extension : ICefExtension;
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const url : ustring;
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var client : ICefClient;
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var settings : TCefBrowserSettings) : boolean;
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begin
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Result := False;
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end;
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function TCefExtensionHandlerRef.GetActiveBrowser(const extension : ICefExtension;
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const browser : ICefBrowser;
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include_incognito : boolean): ICefBrowser;
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begin
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Result := TCefBrowserRef.UnWrap(PCefExtensionHandler(FData).get_active_browser(PCefExtensionHandler(FData),
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CefGetData(extension),
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CefGetData(browser),
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Ord(include_incognito)));
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end;
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function TCefExtensionHandlerRef.CanAccessBrowser(const extension : ICefExtension;
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const browser : ICefBrowser;
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include_incognito : boolean;
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const target_browser : ICefBrowser): boolean;
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begin
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Result := PCefExtensionHandler(FData).can_access_browser(PCefExtensionHandler(FData),
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CefGetData(extension),
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CefGetData(browser),
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Ord(include_incognito),
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CefGetData(target_browser)) <> 0;
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end;
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function TCefExtensionHandlerRef.GetExtensionResource(const extension : ICefExtension;
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const browser : ICefBrowser;
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const file_ : ustring;
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const callback : ICefGetExtensionResourceCallback): boolean;
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var
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TempFile : TCefString;
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begin
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TempFile := CefString(file_);
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Result := PCefExtensionHandler(FData).get_extension_resource(PCefExtensionHandler(FData),
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CefGetData(extension),
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CefGetData(browser),
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@TempFile,
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CefGetData(callback)) <> 0;
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end;
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class function TCefExtensionHandlerRef.UnWrap(data: Pointer): ICefExtensionHandler;
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begin
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if (data <> nil) then
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Result := Create(data) as ICefExtensionHandler
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else
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Result := nil;
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end;
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// ***************************************************************************
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// ************************ TCefExtensionHandlerOwn **************************
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// ***************************************************************************
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procedure cef_extension_handler_on_extension_load_failed(self : PCefExtensionHandler;
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result : TCefErrorcode); stdcall;
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begin
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TCefExtensionHandlerOwn(CefGetObject(self)).OnExtensionLoadFailed(result);
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end;
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procedure cef_extension_handler_on_extension_loaded(self : PCefExtensionHandler;
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extension : PCefExtension); stdcall;
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begin
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TCefExtensionHandlerOwn(CefGetObject(self)).OnExtensionLoaded(TCefExtensionRef.UnWrap(extension));
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end;
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procedure cef_extension_handler_on_extension_unloaded(self : PCefExtensionHandler;
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extension : PCefExtension); stdcall;
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begin
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TCefExtensionHandlerOwn(CefGetObject(self)).OnExtensionUnloaded(TCefExtensionRef.UnWrap(extension));
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end;
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function cef_extension_handler_on_before_background_browser(self : PCefExtensionHandler;
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extension : PCefExtension;
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const url : PCefString;
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var client : PCefClient;
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settings : PCefBrowserSettings) : Integer; stdcall;
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var
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TempClient : ICefClient;
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TempOldCli : pointer;
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begin
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TempClient := TCefClientRef.UnWrap(client);
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TempOldCli := pointer(TempClient);
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Result := Ord(TCefExtensionHandlerOwn(CefGetObject(self)).OnBeforeBackgroundBrowser(TCefExtensionRef.UnWrap(extension),
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CefString(url),
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TempClient,
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settings^));
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if (TempClient = nil) then
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client := nil
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else
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if (TempOldCli <> pointer(TempClient)) then
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client := CefGetData(TempClient);
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end;
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function cef_extension_handler_get_active_browser(self : PCefExtensionHandler;
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extension : PCefExtension;
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browser : PCefBrowser;
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include_incognito : Integer): PCefBrowser; stdcall;
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begin
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Result := CefGetData(TCefExtensionHandlerOwn(CefGetObject(self)).GetActiveBrowser(TCefExtensionRef.UnWrap(extension),
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TCefBrowserRef.UnWrap(browser),
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include_incognito <> 0));
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end;
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function cef_extension_handler_can_access_browser(self : PCefExtensionHandler;
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extension : PCefExtension;
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browser : PCefBrowser;
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include_incognito : Integer;
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target_browser : PCefBrowser): Integer; stdcall;
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begin
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Result := Ord(TCefExtensionHandlerOwn(CefGetObject(self)).CanAccessBrowser(TCefExtensionRef.UnWrap(extension),
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TCefBrowserRef.UnWrap(browser),
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include_incognito <> 0,
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TCefBrowserRef.UnWrap(target_browser)));
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end;
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function cef_extension_handler_get_extension_resource(self : PCefExtensionHandler;
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extension : PCefExtension;
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browser : PCefBrowser;
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const file_ : PCefString;
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callback : PCefGetExtensionResourceCallback): Integer; stdcall;
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begin
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Result := Ord(TCefExtensionHandlerOwn(CefGetObject(self)).GetExtensionResource(TCefExtensionRef.UnWrap(extension),
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TCefBrowserRef.UnWrap(browser),
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CefString(file_),
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TCefGetExtensionResourceCallbackRef.UnWrap(callback)));
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end;
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constructor TCefExtensionHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefExtensionHandler));
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with PCefExtensionHandler(FData)^ do
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begin
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on_extension_load_failed := cef_extension_handler_on_extension_load_failed;
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on_extension_loaded := cef_extension_handler_on_extension_loaded;
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on_extension_unloaded := cef_extension_handler_on_extension_unloaded;
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on_before_background_browser := cef_extension_handler_on_before_background_browser;
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get_active_browser := cef_extension_handler_get_active_browser;
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can_access_browser := cef_extension_handler_can_access_browser;
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get_extension_resource := cef_extension_handler_get_extension_resource;
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end;
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end;
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procedure TCefExtensionHandlerOwn.OnExtensionLoadFailed(result: TCefErrorcode);
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begin
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end;
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procedure TCefExtensionHandlerOwn.OnExtensionLoaded(const extension: ICefExtension);
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begin
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end;
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procedure TCefExtensionHandlerOwn.OnExtensionUnloaded(const extension: ICefExtension);
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begin
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end;
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function TCefExtensionHandlerOwn.OnBeforeBackgroundBrowser(const extension : ICefExtension;
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const url : ustring;
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var client : ICefClient;
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var settings : TCefBrowserSettings) : boolean;
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begin
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Result := True;
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end;
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function TCefExtensionHandlerOwn.GetActiveBrowser(const extension : ICefExtension;
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const browser : ICefBrowser;
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include_incognito : boolean): ICefBrowser;
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begin
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Result := nil;
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end;
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function TCefExtensionHandlerOwn.CanAccessBrowser(const extension : ICefExtension;
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const browser : ICefBrowser;
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include_incognito : boolean;
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const target_browser : ICefBrowser): boolean;
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begin
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Result := True;
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end;
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function TCefExtensionHandlerOwn.GetExtensionResource(const extension : ICefExtension;
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const browser : ICefBrowser;
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const file_ : ustring;
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const callback : ICefGetExtensionResourceCallback): boolean;
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begin
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Result := False;
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end;
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end.
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