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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.Module;
interface
uses
Authorization.Level,
HelpText,
Html.Element,
Html.Element.Block,
Http.Response,
Object_.ReferenceCounted,
StructuredDocument.Node,
Text,
Uri.Producer,
WebSite.Menu.Item,
WebSite.Module.Interaction,
WebSite.Request,
WebSite.Request.Handler;
type
TWebSiteModule = class(TReferenceCountedObject)
private
FHelpText: THelpText;
procedure SetHelpText(const Value: THelpText);
protected
function RenderHelp(Request: TWebSiteRequest): THtmlDivision;
function CreateAuthorizingWebSiteModule(): TWebSiteModule; virtual;
function CreateChildHandlers(Request: TWebSiteRequest; Handler: TWebSiteRequestHandler): TWebSiteRequestHandler;
public
destructor Destroy(); override;
function GetName(): TText; virtual; abstract;
function GetTitle(Request: TWebSiteRequest): TDocumentNode; virtual; abstract;
function HandleRequest(Request: TWebSiteRequest): THttpResponse; virtual;
function GetMenu(Request: TWebSiteRequest; MenuUriProducer: TUriProducer): TMenuItem; virtual;
function GetPathElement(HandlerPath: TWebSiteRequestHandlerPath): TText; virtual;
procedure RegisterInteraction(Request: TWebSiteRequest; Interaction: TWebSiteModuleInteraction; UriProducer: TUriProducer); virtual;
function Embellish(): TWebSiteModule; virtual;
function EmbellishedModule(): TWebSiteModule; virtual;
function CreateRequestHandler(Request: TWebSiteRequest): TWebSiteRequestHandler; virtual;
function GetMinimumAuthorizationLevel(Request: TWebSiteRequest): TAuthorizationLevel; virtual;
property HelpText: THelpText read FHelpText write SetHelpText;
public
class procedure RenderModule(Request: TWebSiteRequest; Contents: THtmlElementList; Module: TWebSiteModule);
end;
implementation
uses
Exception.NotImplemented,
Html,
Html.Element.Inline_,
Http.Response.Html,
Http.Response.Text,
Uri,
WebSite.Language.TranslationMap,
WebSite.Module.Authorizing,
WebSite.Request.Handler.ModuleBased,
WebSite.Session;
{ TWebSiteModule }
function TWebSiteModule.CreateAuthorizingWebSiteModule(): TWebSiteModule;
begin
Result := TAuthorizingWebSiteModule.Create(Self);
end;
function TWebSiteModule.CreateChildHandlers(Request: TWebSiteRequest; Handler: TWebSiteRequestHandler): TWebSiteRequestHandler;
var
Segment: TText;
ResourceType: TUriResourceType;
begin
Handler.Segment := GetName();
Result := Handler;
while Handler <> nil do
begin
if not Request.Path.IsEmpty() then
begin
Segment := Request.Path.First;
if Request.Path.Count > 1 then
ResourceType := TUriResourceType.Directory
else
ResourceType := Request.Path.ResourceType;
Handler := Handler.GetChildHandler(Segment, ResourceType);
if Handler <> nil then
begin
Request.HandlerPath.Push(Result);
Request.UriProducer.PushPath([Segment]);
Result := Handler;
Request.Path.RemoveFirst();
Handler.Segment := Segment;
end;
end
else
Handler := nil;
end;
end;
function TWebSiteModule.CreateRequestHandler(Request: TWebSiteRequest): TWebSiteRequestHandler;
begin
Result := TModuleBasedWebSiteRequestHandler.Create(Self, Request);
end;
destructor TWebSiteModule.Destroy();
begin
HelpText.ReleaseReference();
inherited Destroy();
end;
function TWebSiteModule.Embellish(): TWebSiteModule;
begin
Result := CreateAuthorizingWebSiteModule();
end;
function TWebSiteModule.EmbellishedModule(): TWebSiteModule;
begin
Result := Self;
end;
procedure TWebSiteModule.RegisterInteraction(Request: TWebSiteRequest; Interaction: TWebSiteModuleInteraction; UriProducer: TUriProducer);
begin
end;
function TWebSiteModule.RenderHelp(Request: TWebSiteRequest): THtmlDivision;
var
LinkContainer: THtmlDivision;
Contents: THtmlDivision;
HelpLink: THtmlAnchor;
begin
if (HelpText <> nil) and (Request.Session.InteractionMode = TInteractionMode.Normal) then
begin
HelpLink := THtmlAnchor.Create();
HelpLink.HRef := TUri.NewJavascript('void(0);');
HelpLink.OnClick := 'toggleHelp(event);';
HelpLink.Contents.Add(Html.Text(Request.Translator.Translate(tmHelp)));
LinkContainer := THtmlDivision.Create();
LinkContainer.Classes.Add('Link');
LinkContainer.Contents.Add(HelpLink);
Contents := THtmlDivision.Create();
Contents.Classes.Add('Contents');
Request.StructuredDocument.CompileToHtml(Request, Contents.Contents, HelpText.Contents);
Result := THtmlDivision.Create();
Result.Classes.Add('Help');
Result.Contents.Add(LinkContainer);
Result.Contents.Add(Contents);
end
else
Result := nil;
end;
function TWebSiteModule.GetMenu(Request: TWebSiteRequest; MenuUriProducer: TUriProducer): TMenuItem;
begin
Result := nil;
end;
class procedure TWebSiteModule.RenderModule(Request: TWebSiteRequest; Contents: THtmlElementList; Module: TWebSiteModule);
var
Response: THttpResponse;
Handler: TWebSiteRequestHandler;
begin
Handler := Module.CreateRequestHandler(Request);
Request.HandlerPath.Push(Handler);
Request.UriProducer.PushPath([Module.GetName()]);
Response := Handler.HandleRequest();
Response.AddReference();
Request.UriProducer.PopPath();
Request.HandlerPath.Pop();
if Response is THttpTextResponse then
Contents.Add(Html.Text((Response as THttpTextResponse).Text))
else if Response is THttpHtmlResponse then
Contents.Add((Response as THttpHtmlResponse).Element);
Response.ReleaseReference();
end;
function TWebSiteModule.GetMinimumAuthorizationLevel(Request: TWebSiteRequest): TAuthorizationLevel;
begin
Result := TAuthorizationLevel.Administrator;
end;
function TWebSiteModule.GetPathElement(HandlerPath: TWebSiteRequestHandlerPath): TText;
begin
Result := GetName();
end;
function TWebSiteModule.HandleRequest(Request: TWebSiteRequest): THttpResponse;
begin
raise ENotImplemented.Create(ClassType, 'HandleRequest');
end;
procedure TWebSiteModule.SetHelpText(const Value: THelpText);
begin
if Value <> HelpText then
begin
Value.AddReference();
HelpText.ReleaseReference();
FHelpText := Value;
end;
end;
end.
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