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Salvador Diaz Fau
2017-01-27 17:29:37 +01:00
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commit 21dcc60a24
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// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based
// browser in Delphi applications.
//
// The original license of DCEF3 still applies to CEF4Delphi.
//
// For more information about CEF4Delphi visit :
// https://www.briskbard.com/index.php?lang=en&pageid=cef
//
// Copyright � 2017 Salvador D�az Fau. All rights reserved.
//
// ************************************************************************
// ************ vvvv Original license and comments below vvvv *************
// ************************************************************************
(*
* Delphi Chromium Embedded 3
*
* Usage allowed under the restrictions of the Lesser GNU General Public License
* or alternatively the restrictions of the Mozilla Public License 1.1
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
* Web site : http://www.progdigy.com
* Repository : http://code.google.com/p/delphichromiumembedded/
* Group : http://groups.google.com/group/delphichromiumembedded
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
*)
unit uCEFResourceBundleHandler;
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
interface
uses
uCEFBase, uCEFInterfaces, uCEFTypes;
type
TCefResourceBundleHandlerOwn = class(TCefBaseOwn, ICefResourceBundleHandler)
protected
function GetDataResource(stringId: Integer; out data: Pointer; out dataSize: NativeUInt): Boolean; virtual; abstract;
function GetLocalizedString(messageId: Integer; out stringVal: ustring): Boolean; virtual; abstract;
function GetDataResourceForScale(resourceId: Integer; scaleFactor: TCefScaleFactor; out data: Pointer; dataSize: NativeUInt): Boolean; virtual; abstract;
public
constructor Create; virtual;
end;
TGetDataResource = reference to function(resourceId: Integer; out data: Pointer; out dataSize: NativeUInt): Boolean;
TGetLocalizedString = reference to function(stringId: Integer; out stringVal: ustring): Boolean;
TGetDataResourceForScale = reference to function(resourceId: Integer; scaleFactor: TCefScaleFactor; out data: Pointer; out dataSize: NativeUInt): Boolean;
TCefFastResourceBundle = class(TCefResourceBundleHandlerOwn)
protected
FGetDataResource: TGetDataResource;
FGetLocalizedString: TGetLocalizedString;
FGetDataResourceForScale: TGetDataResourceForScale;
function GetDataResource(resourceId: Integer; out data: Pointer; out dataSize: NativeUInt): Boolean; override;
function GetLocalizedString(stringId: Integer; out stringVal: ustring): Boolean; override;
function GetDataResourceForScale(resourceId: Integer; scaleFactor: TCefScaleFactor; out data: Pointer; dataSize: NativeUInt): Boolean; override;
public
constructor Create(AGetDataResource: TGetDataResource; AGetLocalizedString: TGetLocalizedString; AGetDataResourceForScale: TGetDataResourceForScale); reintroduce;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions;
function cef_resource_bundle_handler_get_localized_string(self: PCefResourceBundleHandler;
string_id: Integer; string_val: PCefString): Integer; stdcall;
var
str: ustring;
begin
Result := Ord(TCefResourceBundleHandlerOwn(CefGetObject(self)).
GetLocalizedString(string_id, str));
if Result <> 0 then
string_val^ := CefString(str);
end;
function cef_resource_bundle_handler_get_data_resource(self: PCefResourceBundleHandler;
resource_id: Integer; var data: Pointer; var data_size: NativeUInt): Integer; stdcall;
begin
Result := Ord(TCefResourceBundleHandlerOwn(CefGetObject(self)).
GetDataResource(resource_id, data, data_size));
end;
function cef_resource_bundle_handler_get_data_resource_for_scale(
self: PCefResourceBundleHandler; resource_id: Integer; scale_factor: TCefScaleFactor;
out data: Pointer; data_size: NativeUInt): Integer; stdcall;
begin
Result := Ord(TCefResourceBundleHandlerOwn(CefGetObject(self)).
GetDataResourceForScale(resource_id, scale_factor, data, data_size));
end;
constructor TCefResourceBundleHandlerOwn.Create;
begin
inherited CreateData(SizeOf(TCefResourceBundleHandler));
with PCefResourceBundleHandler(FData)^ do
begin
get_localized_string := cef_resource_bundle_handler_get_localized_string;
get_data_resource := cef_resource_bundle_handler_get_data_resource;
get_data_resource_for_scale := cef_resource_bundle_handler_get_data_resource_for_scale;
end;
end;
// TCefFastResourceBundle
constructor TCefFastResourceBundle.Create(AGetDataResource: TGetDataResource;
AGetLocalizedString: TGetLocalizedString; AGetDataResourceForScale: TGetDataResourceForScale);
begin
inherited Create;
FGetDataResource := AGetDataResource;
FGetLocalizedString := AGetLocalizedString;
FGetDataResourceForScale := AGetDataResourceForScale;
end;
function TCefFastResourceBundle.GetDataResource(resourceId: Integer;
out data: Pointer; out dataSize: NativeUInt): Boolean;
begin
if Assigned(FGetDataResource) then
Result := FGetDataResource(resourceId, data, dataSize) else
Result := False;
end;
function TCefFastResourceBundle.GetDataResourceForScale(resourceId: Integer;
scaleFactor: TCefScaleFactor; out data: Pointer;
dataSize: NativeUInt): Boolean;
begin
if Assigned(FGetDataResourceForScale) then
Result := FGetDataResourceForScale(resourceId, scaleFactor, data, dataSize) else
Result := False;
end;
function TCefFastResourceBundle.GetLocalizedString(stringId: Integer;
out stringVal: ustring): Boolean;
begin
if Assigned(FGetLocalizedString) then
Result := FGetLocalizedString(stringId, stringVal) else
Result := False;
end;
end.