mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-12-04 09:26:52 +02:00
fd1e936198
- Removed CEFSentinel from some demos because it's no longer necessary. - Updated copyright year.
213 lines
7.8 KiB
ObjectPascal
213 lines
7.8 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 © 2020 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 uCEFResourceBundleHandler;
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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, uCEFApplicationCore;
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type
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TCefResourceBundleHandlerOwn = class(TCefBaseRefCountedOwn, ICefResourceBundleHandler)
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protected
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function GetLocalizedString(stringid: Integer; var stringVal: ustring): Boolean; virtual; abstract;
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function GetDataResource(resourceId: Integer; var data: Pointer; var dataSize: NativeUInt): Boolean; virtual; abstract;
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function GetDataResourceForScale(resourceId: Integer; scaleFactor: TCefScaleFactor; var data: Pointer; var dataSize: NativeUInt): Boolean; virtual; abstract;
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public
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constructor Create; virtual;
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end;
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TCefCustomResourceBundleHandler = class(TCefResourceBundleHandlerOwn)
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protected
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FCefApp : TCefApplicationCore;
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function GetLocalizedString(stringid: Integer; var stringVal: ustring): Boolean; override;
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function GetDataResource(resourceId: Integer; var data: Pointer; var dataSize: NativeUInt): Boolean; override;
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function GetDataResourceForScale(resourceId: Integer; scaleFactor: TCefScaleFactor; var data: Pointer; var dataSize: NativeUInt): Boolean; override;
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public
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constructor Create(const aCefApp : TCefApplicationCore); 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, uCEFConstants;
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function cef_resource_bundle_handler_get_localized_string(self : PCefResourceBundleHandler;
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string_id : Integer;
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string_val : PCefString): Integer; stdcall;
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var
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TempString : ustring;
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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 TCefResourceBundleHandlerOwn) then
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begin
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TempString := '';
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Result := Ord(TCefResourceBundleHandlerOwn(TempObject).GetLocalizedString(string_id, TempString));
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if (string_val <> nil) then
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begin
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CefStringFree(string_val);
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string_val^ := CefStringAlloc(TempString);
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end;
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end;
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end;
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function cef_resource_bundle_handler_get_data_resource( self : PCefResourceBundleHandler;
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resource_id : Integer;
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var data : Pointer;
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var data_size : NativeUInt): 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 TCefResourceBundleHandlerOwn) then
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Result := Ord(TCefResourceBundleHandlerOwn(TempObject).GetDataResource(resource_id, data, data_size));
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end;
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function cef_resource_bundle_handler_get_data_resource_for_scale( self : PCefResourceBundleHandler;
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resource_id : Integer;
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scale_factor : TCefScaleFactor;
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var data : Pointer;
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var data_size : NativeUInt): 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 TCefResourceBundleHandlerOwn) then
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Result := Ord(TCefResourceBundleHandlerOwn(TempObject).GetDataResourceForScale(resource_id, scale_factor, data, data_size));
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end;
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constructor TCefResourceBundleHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefResourceBundleHandler));
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with PCefResourceBundleHandler(FData)^ do
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begin
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get_localized_string := {$IFDEF FPC}@{$ENDIF}cef_resource_bundle_handler_get_localized_string;
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get_data_resource := {$IFDEF FPC}@{$ENDIF}cef_resource_bundle_handler_get_data_resource;
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get_data_resource_for_scale := {$IFDEF FPC}@{$ENDIF}cef_resource_bundle_handler_get_data_resource_for_scale;
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end;
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end;
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// TCefCustomResourceBundleHandler
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constructor TCefCustomResourceBundleHandler.Create(const aCefApp : TCefApplicationCore);
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begin
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inherited Create;
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FCefApp := aCefApp;
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end;
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destructor TCefCustomResourceBundleHandler.Destroy;
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begin
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FCefApp := nil;
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inherited Destroy;
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end;
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function TCefCustomResourceBundleHandler.GetLocalizedString( stringid : Integer;
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var stringVal : ustring): Boolean;
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begin
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Result := False;
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try
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Result := (FCefApp <> nil) and FCefApp.Internal_GetLocalizedString(stringid, stringVal);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomResourceBundleHandler.GetLocalizedString', e) then raise;
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end;
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end;
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function TCefCustomResourceBundleHandler.GetDataResource( resourceId : Integer;
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var data : Pointer;
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var dataSize : NativeUInt): Boolean;
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begin
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Result := False;
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try
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Result := (FCefApp <> nil) and FCefApp.Internal_GetDataResource(resourceId, data, dataSize);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomResourceBundleHandler.GetDataResource', e) then raise;
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end;
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end;
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function TCefCustomResourceBundleHandler.GetDataResourceForScale( resourceId : Integer;
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scaleFactor : TCefScaleFactor;
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var data : Pointer;
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var dataSize : NativeUInt): Boolean;
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begin
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Result := False;
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try
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Result := (FCefApp <> nil) and FCefApp.Internal_GetDataResourceForScale(resourceId, scaleFactor, data, dataSize);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomResourceBundleHandler.GetDataResourceForScale', e) then raise;
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end;
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end;
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end.
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