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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit WebSite.Page.Component;
interface
uses
Boolean,
Dictionary,
Html.Element,
Iterator,
Iterator.Tree,
StructuredDocument.Node,
Text,
UserInterface.Control.Mode,
WebSite.Form.Problem,
WebSite.Request,
WebSite.Request.Handler;
type
TWebPageComponent = class(TObject)
protected
procedure SetCaption(const Value: TDocumentNode); virtual; abstract;
function GetCaption(): TDocumentNode; virtual; abstract;
function GetInputOK(): TBoolean; virtual;
procedure SetInputOK(const Value: TBoolean); virtual;
public
Name: TText;
Mode: TControlMode;
constructor Create(); virtual;
function Render(Request: TWebSiteRequest): THtmlElement; virtual; abstract;
procedure LoadFromParameters(Parameters: TDictionary); virtual;
procedure CheckInput(Problems: TFormProblems); virtual;
function CreateRequestHandler(Request: TWebSiteRequest): TWebSiteRequestHandler; virtual;
function CreateChildIterator(): TIterator<TWebPageComponent>; virtual;
function CreateSubtreeIterator(Order: TTreeVerticalOrder): TIterator<TWebPageComponent>;
function GetDescendantWithName(const Name: TText): TWebPageComponent; virtual; deprecated 'Please use an other way to track components within an hierarchy';
property Caption: TDocumentNode read GetCaption write SetCaption;
property InputOK: TBoolean read GetInputOK write SetInputOK;
end;
TWebPageComponentChildIteratorFactory = class(TChildIteratorFactory<TWebPageComponent>)
public
function CreateChildIterator(Parent: TWebPageComponent): TIterator<TWebPageComponent>; override;
end;
implementation
uses
Exception.NotImplemented,
Iterator.Empty;
{ TWebPageComponent }
procedure TWebPageComponent.CheckInput(Problems: TFormProblems);
begin
end;
constructor TWebPageComponent.Create();
begin
inherited Create();
Self.Mode := TControlMode.Edit;
end;
function TWebPageComponent.CreateChildIterator(): TIterator<TWebPageComponent>;
begin
Result := TEmptyIterator<TWebPageComponent>.Create();
end;
function TWebPageComponent.CreateSubtreeIterator(Order: TTreeVerticalOrder): TIterator<TWebPageComponent>;
begin
Result := TTreeIterator<TWebPageComponent>.Create(Self, Order, TWebPageComponentChildIteratorFactory.Create());
end;
function TWebPageComponent.GetDescendantWithName(const Name: TText): TWebPageComponent;
begin
if Name = Self.Name then
Result := Self
else
Result := nil;
end;
function TWebPageComponent.GetInputOK(): TBoolean;
begin
raise ENotImplemented.Create(ClassType, 'GetInputOK');
end;
procedure TWebPageComponent.LoadFromParameters(Parameters: TDictionary);
begin
end;
function TWebPageComponent.CreateRequestHandler(Request: TWebSiteRequest): TWebSiteRequestHandler;
begin
Result := nil;
end;
procedure TWebPageComponent.SetInputOK(const Value: TBoolean);
begin
raise ENotImplemented.Create(ClassType, 'SetInputOK');
end;
{ TWebPageComponentChildIteratorFactory }
function TWebPageComponentChildIteratorFactory.CreateChildIterator(Parent: TWebPageComponent): TIterator<TWebPageComponent>;
begin
Result := Parent.CreateChildIterator();
end;
end.
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