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CEF4Delphi/source/uCEFGetGeolocationCallback.pas
2017-02-05 20:56:46 +01:00

116 lines
3.3 KiB
ObjectPascal

// ************************************************************************
// ***************************** 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 Díaz 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 uCEFGetGeolocationCallback;
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
{$I cef.inc}
interface
uses
uCEFBase, uCEFInterfaces, uCEFTypes;
type
TCefGetGeolocationCallbackOwn = class(TCefBaseOwn, ICefGetGeolocationCallback)
protected
procedure OnLocationUpdate(const position: PCefGeoposition); virtual;
public
constructor Create; virtual;
end;
TOnLocationUpdate = reference to procedure(const position: PCefGeoposition);
TCefFastGetGeolocationCallback = class(TCefGetGeolocationCallbackOwn)
protected
FCallback: TOnLocationUpdate;
procedure OnLocationUpdate(const position: PCefGeoposition); override;
public
constructor Create(const callback: TOnLocationUpdate); reintroduce;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions;
procedure cef_get_geolocation_callback_on_location_update(
self: PCefGetGeolocationCallback; const position: PCefGeoposition); stdcall;
begin
with TCefGetGeolocationCallbackOwn(CefGetObject(self)) do
OnLocationUpdate(position);
end;
// TCefGetGeolocationCallbackOwn
constructor TCefGetGeolocationCallbackOwn.Create;
begin
inherited CreateData(SizeOf(TCefGetGeolocationCallback));
with PCefGetGeolocationCallback(FData)^ do
on_location_update := cef_get_geolocation_callback_on_location_update;
end;
procedure TCefGetGeolocationCallbackOwn.OnLocationUpdate(
const position: PCefGeoposition);
begin
end;
// TCefFastGetGeolocationCallback
constructor TCefFastGetGeolocationCallback.Create(
const callback: TOnLocationUpdate);
begin
inherited Create;
FCallback := callback;
end;
procedure TCefFastGetGeolocationCallback.OnLocationUpdate(
const position: PCefGeoposition);
begin
FCallback(position);
end;
end.