1
0
mirror of https://github.com/salvadordf/CEF4Delphi.git synced 2024-12-14 09:42:54 +02:00
CEF4Delphi/source/uCEFMenuModel.pas

467 lines
18 KiB
ObjectPascal
Raw Normal View History

2017-01-27 17:37:51 +02:00
// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
2017-01-27 17:37:51 +02:00
// 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
//
2021-01-01 12:11:30 +02:00
// Copyright � 2021 Salvador Diaz Fau. All rights reserved.
2017-01-27 17:37:51 +02:00
//
// ************************************************************************
// ************ 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 uCEFMenuModel;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
2017-01-27 17:37:51 +02:00
2017-02-05 21:56:46 +02:00
{$I cef.inc}
2017-01-27 17:37:51 +02:00
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
2017-01-27 17:37:51 +02:00
type
TCefMenuModelRef = class(TCefBaseRefCountedRef, ICefMenuModel)
2017-01-27 17:37:51 +02:00
protected
function IsSubMenu: Boolean;
2017-01-27 17:37:51 +02:00
function Clear: Boolean;
function GetCount: Integer;
function AddSeparator: Boolean;
function AddItem(commandId: Integer; const text: ustring): Boolean;
function AddCheckItem(commandId: Integer; const text: ustring): Boolean;
function AddRadioItem(commandId: Integer; const text: ustring; groupId: Integer): Boolean;
function AddSubMenu(commandId: Integer; const text: ustring): ICefMenuModel;
function InsertSeparatorAt(index: Integer): Boolean;
function InsertItemAt(index, commandId: Integer; const text: ustring): Boolean;
function InsertCheckItemAt(index, commandId: Integer; const text: ustring): Boolean;
function InsertRadioItemAt(index, commandId: Integer; const text: ustring; groupId: Integer): Boolean;
function InsertSubMenuAt(index, commandId: Integer; const text: ustring): ICefMenuModel;
function Remove(commandId: Integer): Boolean;
function RemoveAt(index: Integer): Boolean;
function GetIndexOf(commandId: Integer): Integer;
function GetCommandIdAt(index: Integer): Integer;
function SetCommandIdAt(index, commandId: Integer): Boolean;
function GetLabel(commandId: Integer): ustring;
function GetLabelAt(index: Integer): ustring;
function SetLabel(commandId: Integer; const text: ustring): Boolean;
function SetLabelAt(index: Integer; const text: ustring): Boolean;
function GetType(commandId: Integer): TCefMenuItemType;
function GetTypeAt(index: Integer): TCefMenuItemType;
function GetGroupId(commandId: Integer): Integer;
function GetGroupIdAt(index: Integer): Integer;
function SetGroupId(commandId, groupId: Integer): Boolean;
function SetGroupIdAt(index, groupId: Integer): Boolean;
function GetSubMenu(commandId: Integer): ICefMenuModel;
function GetSubMenuAt(index: Integer): ICefMenuModel;
function IsVisible(commandId: Integer): Boolean;
function isVisibleAt(index: Integer): Boolean;
function SetVisible(commandId: Integer; visible: Boolean): Boolean;
function SetVisibleAt(index: Integer; visible: Boolean): Boolean;
function IsEnabled(commandId: Integer): Boolean;
function IsEnabledAt(index: Integer): Boolean;
function SetEnabled(commandId: Integer; enabled: Boolean): Boolean;
function SetEnabledAt(index: Integer; enabled: Boolean): Boolean;
function IsChecked(commandId: Integer): Boolean;
function IsCheckedAt(index: Integer): Boolean;
function setChecked(commandId: Integer; checked: Boolean): Boolean;
function setCheckedAt(index: Integer; checked: Boolean): Boolean;
function HasAccelerator(commandId: Integer): Boolean;
function HasAcceleratorAt(index: Integer): Boolean;
function SetAccelerator(commandId, keyCode: Integer; shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
function SetAcceleratorAt(index, keyCode: Integer; shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
function RemoveAccelerator(commandId: Integer): Boolean;
function RemoveAcceleratorAt(index: Integer): Boolean;
function GetAccelerator(commandId: Integer; out keyCode: Integer; out shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
function GetAcceleratorAt(index: Integer; out keyCode: Integer; out shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
function SetColor(commandId: Integer; colorType: TCefMenuColorType; color: TCefColor): Boolean;
function SetColorAt(index: Integer; colorType: TCefMenuColorType; color: TCefColor): Boolean;
function GetColor(commandId: Integer; colorType: TCefMenuColorType; out color: TCefColor): Boolean;
function GetColorAt(index: Integer; colorType: TCefMenuColorType; out color: TCefColor): Boolean;
function SetFontList(commandId: Integer; const fontList: ustring): Boolean;
function SetFontListAt(index: Integer; const fontList: ustring): Boolean;
2017-01-27 17:37:51 +02:00
public
class function UnWrap(data: Pointer): ICefMenuModel;
class function New(const delegate: ICefMenuModelDelegate): ICefMenuModel;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions;
function TCefMenuModelRef.AddCheckItem(commandId: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.add_check_item(PCefMenuModel(FData), commandId, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.AddItem(commandId: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.add_item(PCefMenuModel(FData), commandId, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.AddRadioItem(commandId: Integer; const text: ustring; groupId: Integer): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.add_radio_item(PCefMenuModel(FData), commandId, @TempText, groupId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.AddSeparator: Boolean;
begin
Result := PCefMenuModel(FData)^.add_separator(PCefMenuModel(FData)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.AddSubMenu(commandId: Integer; const text: ustring): ICefMenuModel;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := TCefMenuModelRef.UnWrap(PCefMenuModel(FData)^.add_sub_menu(PCefMenuModel(FData), commandId, @TempText));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsSubMenu: Boolean;
begin
Result := PCefMenuModel(FData)^.is_sub_menu(PCefMenuModel(FData)) <> 0;
end;
2017-01-27 17:37:51 +02:00
function TCefMenuModelRef.Clear: Boolean;
begin
Result := PCefMenuModel(FData)^.clear(PCefMenuModel(FData)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetAccelerator(commandId: Integer; out keyCode: Integer; out shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
var
TempShift, TempCtrl, TempAlt : Integer;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.get_accelerator(PCefMenuModel(FData), commandId, @keyCode, @TempShift, @TempCtrl, @TempAlt) <> 0;
shiftPressed := TempShift <> 0;
ctrlPressed := TempCtrl <> 0;
altPressed := TempAlt <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetAcceleratorAt(index: Integer; out keyCode: Integer; out shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
var
TempShift, TempCtrl, TempAlt : Integer;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.get_accelerator_at(PCefMenuModel(FData), index, @keyCode, @TempShift, @TempCtrl, @TempAlt) <> 0;
shiftPressed := TempShift <> 0;
ctrlPressed := TempCtrl <> 0;
altPressed := TempAlt <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetColor(commandId: Integer; colorType: TCefMenuColorType; color: TCefColor): Boolean;
begin
Result := PCefMenuModel(FData)^.set_color(PCefMenuModel(FData), commandId, colorType, color) <> 0;
end;
function TCefMenuModelRef.SetColorAt(index: Integer; colorType: TCefMenuColorType; color: TCefColor): Boolean;
begin
Result := PCefMenuModel(FData)^.set_color_at(PCefMenuModel(FData), index, colorType, color) <> 0;
end;
function TCefMenuModelRef.GetColor(commandId: Integer; colorType: TCefMenuColorType; out color: TCefColor): Boolean;
begin
Result := PCefMenuModel(FData)^.get_color(PCefMenuModel(FData), commandId, colorType, @color) <> 0;
end;
function TCefMenuModelRef.GetColorAt(index: Integer; colorType: TCefMenuColorType; out color: TCefColor): Boolean;
begin
Result := PCefMenuModel(FData)^.get_color_at(PCefMenuModel(FData), index, colorType, @color) <> 0;
end;
function TCefMenuModelRef.SetFontList(commandId: Integer; const fontList: ustring): Boolean;
var
TempList : TCefString;
begin
TempList := CefString(fontList);
Result := PCefMenuModel(FData)^.set_font_list(PCefMenuModel(FData), commandId, @TempList) <> 0;
end;
function TCefMenuModelRef.SetFontListAt(index: Integer; const fontList: ustring): Boolean;
var
TempList : TCefString;
begin
TempList := CefString(fontList);
Result := PCefMenuModel(FData)^.set_font_list_at(PCefMenuModel(FData), index, @TempList) <> 0;
end;
2017-01-27 17:37:51 +02:00
function TCefMenuModelRef.GetCommandIdAt(index: Integer): Integer;
begin
Result := PCefMenuModel(FData)^.get_command_id_at(PCefMenuModel(FData), index);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetCount: Integer;
begin
Result := PCefMenuModel(FData)^.get_count(PCefMenuModel(FData));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetGroupId(commandId: Integer): Integer;
begin
Result := PCefMenuModel(FData)^.get_group_id(PCefMenuModel(FData), commandId);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetGroupIdAt(index: Integer): Integer;
begin
Result := PCefMenuModel(FData)^.get_group_id(PCefMenuModel(FData), index);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetIndexOf(commandId: Integer): Integer;
begin
Result := PCefMenuModel(FData)^.get_index_of(PCefMenuModel(FData), commandId);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetLabel(commandId: Integer): ustring;
begin
Result := CefStringFreeAndGet(PCefMenuModel(FData)^.get_label(PCefMenuModel(FData), commandId));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetLabelAt(index: Integer): ustring;
begin
Result := CefStringFreeAndGet(PCefMenuModel(FData)^.get_label_at(PCefMenuModel(FData), index));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetSubMenu(commandId: Integer): ICefMenuModel;
begin
Result := TCefMenuModelRef.UnWrap(PCefMenuModel(FData)^.get_sub_menu(PCefMenuModel(FData), commandId));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetSubMenuAt(index: Integer): ICefMenuModel;
begin
Result := TCefMenuModelRef.UnWrap(PCefMenuModel(FData)^.get_sub_menu_at(PCefMenuModel(FData), index));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetType(commandId: Integer): TCefMenuItemType;
begin
Result := PCefMenuModel(FData)^.get_type(PCefMenuModel(FData), commandId);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.GetTypeAt(index: Integer): TCefMenuItemType;
begin
Result := PCefMenuModel(FData)^.get_type_at(PCefMenuModel(FData), index);
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.HasAccelerator(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.has_accelerator(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.HasAcceleratorAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.has_accelerator_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.InsertCheckItemAt(index, commandId: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.insert_check_item_at(PCefMenuModel(FData), index, commandId, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.InsertItemAt(index, commandId: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.insert_item_at(PCefMenuModel(FData), index, commandId, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.InsertRadioItemAt(index, commandId: Integer; const text: ustring; groupId: Integer): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.insert_radio_item_at(PCefMenuModel(FData), index, commandId, @TempText, groupId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.InsertSeparatorAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.insert_separator_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.InsertSubMenuAt(index, commandId: Integer; const text: ustring): ICefMenuModel;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := TCefMenuModelRef.UnWrap(PCefMenuModel(FData)^.insert_sub_menu_at( PCefMenuModel(FData), index, commandId, @TempText));
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsChecked(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_checked(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsCheckedAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_checked_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsEnabled(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_enabled(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsEnabledAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_enabled_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.IsVisible(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_visible(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.isVisibleAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.is_visible_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
class function TCefMenuModelRef.New(const delegate: ICefMenuModelDelegate): ICefMenuModel;
2017-01-27 17:37:51 +02:00
begin
Result := UnWrap(cef_menu_model_create(CefGetData(delegate)));
end;
function TCefMenuModelRef.Remove(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.remove(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.RemoveAccelerator(commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.remove_accelerator(PCefMenuModel(FData), commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.RemoveAcceleratorAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.remove_accelerator_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.RemoveAt(index: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.remove_at(PCefMenuModel(FData), index) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetAccelerator(commandId, keyCode: Integer; shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_accelerator(PCefMenuModel(FData), commandId, keyCode,
Ord(shiftPressed), Ord(ctrlPressed), Ord(altPressed)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetAcceleratorAt(index, keyCode: Integer; shiftPressed, ctrlPressed, altPressed: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_accelerator_at(PCefMenuModel(FData), index, keyCode,
Ord(shiftPressed), Ord(ctrlPressed), Ord(altPressed)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.setChecked(commandId: Integer; checked: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_checked(PCefMenuModel(FData), commandId, Ord(checked)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.setCheckedAt(index: Integer; checked: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_checked_at(PCefMenuModel(FData), index, Ord(checked)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetCommandIdAt(index, commandId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.set_command_id_at(PCefMenuModel(FData), index, commandId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetEnabled(commandId: Integer; enabled: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_enabled(PCefMenuModel(FData), commandId, Ord(enabled)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetEnabledAt(index: Integer; enabled: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_enabled_at(PCefMenuModel(FData), index, Ord(enabled)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetGroupId(commandId, groupId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.set_group_id(PCefMenuModel(FData), commandId, groupId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetGroupIdAt(index, groupId: Integer): Boolean;
begin
Result := PCefMenuModel(FData)^.set_group_id_at(PCefMenuModel(FData), index, groupId) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetLabel(commandId: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.set_label(PCefMenuModel(FData), commandId, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetLabelAt(index: Integer; const text: ustring): Boolean;
2017-01-27 17:37:51 +02:00
var
TempText : TCefString;
2017-01-27 17:37:51 +02:00
begin
TempText := CefString(text);
Result := PCefMenuModel(FData)^.set_label_at(PCefMenuModel(FData), index, @TempText) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetVisible(commandId: Integer; visible: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_visible(PCefMenuModel(FData), commandId, Ord(visible)) <> 0;
2017-01-27 17:37:51 +02:00
end;
function TCefMenuModelRef.SetVisibleAt(index: Integer; visible: Boolean): Boolean;
2017-01-27 17:37:51 +02:00
begin
Result := PCefMenuModel(FData)^.set_visible_at(PCefMenuModel(FData), index, Ord(visible)) <> 0;
2017-01-27 17:37:51 +02:00
end;
class function TCefMenuModelRef.UnWrap(data: Pointer): ICefMenuModel;
begin
if (data <> nil) then
Result := Create(data) as ICefMenuModel
else
2017-01-27 17:37:51 +02:00
Result := nil;
end;
end.