Delphi. UniGUI. Страницы в приложении UniGUI

Вот что у нас получится, мы обращаемся по адресу

http://localhost:8077/?pageID=1&pageName=Actions

1	http://localhost:8077/?pageID=1&pageName=Actions

И получаем определенную страницу

Под страницами будем понимать некий статический контент, который будет отображаться при уникальном URL.

UNIGUI это SPA приложение, то есть Single Page Application. В своей основе это одна страница. Но уникальные запросы к серверу позволяют отображать статические странички, что хорошо для поисковой SEO оптимизации.

Посмотрим, как это можно реализовать в UNIGUI.

В MainModule OnCreate создадим набор страниц

procedure TUniMainModule.UniGUIMainModuleCreate(Sender: TObject);
var
  protocolServerPort: string;
begin
  FPagesSL := TStringList.Create;
  FProtocol := 'http';
  FServer := 'localhost';
  FPort := '8077';
  protocolServerPort := FProtocol + '://' + FServer + ':' + FPort;
  FPagesSL.Add(protocolServerPort + '?pageID=0&pageName=MainPage');
  FPagesSL.Add(protocolServerPort + '?pageID=1&pageName=Actions');
  FPagesSL.Add(protocolServerPort + '?pageID=2&pageName=Catalog');
  FPagesSL.Add(protocolServerPort + '?pageID=3&pageName=Payment');
  FPagesSL.Add(protocolServerPort + '?pageID=4&pageName=Delivery');
  FPagesSL.Add(protocolServerPort + '?pageID=5&pageName=Education');
  FPagesSL.Add(protocolServerPort + '?pageID=6&pageName=Shops');
  FPagesSL.Add(protocolServerPort + '?pageID=7&pageName=Service');
end;

procedure TUniMainModule.UniGUIMainModuleCreate(Sender: TObject);

var

protocolServerPort: string;

begin

FPagesSL := TStringList.Create;

FProtocol := 'http';

FServer := 'localhost';

FPort := '8077';

protocolServerPort := FProtocol + '://' + FServer + ':' + FPort;

FPagesSL.Add(protocolServerPort + '?pageID=0&pageName=MainPage');

FPagesSL.Add(protocolServerPort + '?pageID=1&pageName=Actions');

FPagesSL.Add(protocolServerPort + '?pageID=2&pageName=Catalog');

FPagesSL.Add(protocolServerPort + '?pageID=3&pageName=Payment');

FPagesSL.Add(protocolServerPort + '?pageID=4&pageName=Delivery');

FPagesSL.Add(protocolServerPort + '?pageID=5&pageName=Education');

FPagesSL.Add(protocolServerPort + '?pageID=6&pageName=Shops');

FPagesSL.Add(protocolServerPort + '?pageID=7&pageName=Service');

end;

Дальше, в определенном месте, где нам нужно сделать линк, пишем следующее

procedure TTopMenuElement.lMenuElementClick(Sender: TObject);
begin
//UniSession.AddJS('location.href=''http://google.com'' ');
  UniSession.AddJS('location.href=''' + URL + ''' ');
end;

procedure TTopMenuElement.lMenuElementClick(Sender: TObject);

begin

//UniSession.AddJS('location.href=''http://google.com'' ');

UniSession.AddJS('location.href=''' + URL + ''' ');

end;

и подставляем в URL ту или иную страницу из списка, созданного выше.

Теперь самое интересное, на серверной стороне, нам нужно сделать некоторую обработку, которая бы открывала тот или иной контент, в зависимости от набора параметров в URL.

Сделаем это в MainForm. OnShow

procedure TMainForm.UniFormShow(Sender: TObject);
var
  pageID: Integer;
begin
  if UniApplication.Parameters.Values['pageID'] <> '' then
  begin
    pageID := UniApplication.Parameters.Values['pageID'].ToInteger;
    FCurrPage := FPagesDM.GetPage(pageID);
  end
  else
    FCurrPage := FPagesDM.GetPage(0);
end;

procedure TMainForm.UniFormShow(Sender: TObject);

var

pageID: Integer;

begin

if UniApplication.Parameters.Values['pageID'] <> '' then

begin

pageID := UniApplication.Parameters.Values['pageID'].ToInteger;

FCurrPage := FPagesDM.GetPage(pageID);

end

else

FCurrPage := FPagesDM.GetPage(0);

end;

Что у нас здесь происходит? Мы пытаемся прочитать параметр и загрузить по нему тот или иной контент.

Кому интересно, как выдавать тот или иной контент, в зависимости от фрэйма, публикую здесь полный модуль uPagesDM.

Основной смысл – убить все существующие фрэймы, если они ассоциированы и создать новый.

unit uPagesDM;

interface

uses
  SysUtils, Classes, uPageTemplate, System.Generics.Collections,
  //
  uMainPageContent, //
  uActionsPageContent, //
  uCatalogPageContent, //
  uPaymentsPageContent, //
  uDeliveryPageContent, //
  uEducationPageContent, //
  uShopsPageContent, //
  uServicePageContent,
  //
  uniScrollBox;

type
  TPagesDM = class(TDataModule)
  private
    FMainPage: TPageTemplate;
    FMainPageContent: TMainPageContent;
    //
    FActionsPage: TPageTemplate;
    FActionsPageContent: TActionsPageContent;
    //
    FCatalogPage: TPageTemplate;
    FCatalogPageContent: TCatalogPageContent;
    //
    FPaymentsPage: TPageTemplate;
    FPaymentsPageContent: TPaymentsPageContent;
    //
    FDeliveryPage: TPageTemplate;
    FDeliveryPageContent: TDeliveryPageContent;
    //
    FEducationPage: TPageTemplate;
    FEducationPageContent: TEducationPageContent;
    //
    FShopsPage: TPageTemplate;
    FShopsPageContent: TShopsPageContent;
    //
    FServicePage: TPageTemplate;
    FServicePageContent: TServicePageContent;
    //
    FPageParent: TUniScrollBox;
    { Private declarations }
    procedure killFrames;
    procedure SetPageParent(const Value: TUniScrollBox);
  public
    { Public declarations }
    function GetPage(aPageIndex: integer): TPageTemplate;
    procedure OnAfterRender(aWidth, aHeight: integer);
    procedure OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight: integer);
    property PageParent: TUniScrollBox read FPageParent write SetPageParent;
  end;

implementation

uses
  Vcl.Controls;

{$R *.dfm}

{ TPagesDM }

function TPagesDM.GetPage(aPageIndex: integer): TPageTemplate;
begin
  case aPageIndex of
    0:
      begin
        killFrames();
        FMainPage := TPageTemplate.Create(FPageParent);
        FMainPage.Parent := FPageParent;
        FMainPageContent := TMainPageContent.Create(FMainPage);
        FMainPageContent.Parent := FMainPage;
        FMainPageContent.Page := FMainPage;
        FMainPageContent.Align := alClient;
        // init
        Result := FMainPage;
      end;
    1:
      begin
        killFrames();
        FActionsPage := TPageTemplate.Create(FPageParent);
        FActionsPage.Parent := FPageParent;
        FActionsPageContent := TActionsPageContent.Create(FActionsPage);
        FActionsPageContent.Parent := FActionsPage;
        FActionsPageContent.Page := FActionsPage;
        FActionsPageContent.Align := alClient;
        // init
        Result := FActionsPage;
      end;
    2:
      begin
        killFrames();
        FCatalogPage := TPageTemplate.Create(FPageParent);
        FCatalogPage.Parent := FPageParent;
        //
        FCatalogPageContent := TCatalogPageContent.Create(FCatalogPage);
        FCatalogPageContent.Parent := FCatalogPage;
        FCatalogPageContent.Page := FCatalogPage;
        FCatalogPageContent.Align := alClient;
        // init
        Result := FCatalogPage;
      end;
    3:
      begin
        killFrames();
        FPaymentsPage := TPageTemplate.Create(FPageParent);
        FPaymentsPage.Parent := FPageParent;
        //
        FPaymentsPageContent := TPaymentsPageContent.Create(FPaymentsPage);
        FPaymentsPageContent.Parent := FPaymentsPage;
        FPaymentsPageContent.Page := FPaymentsPage;
        FPaymentsPageContent.Align := alClient;
        // init
        Result := FPaymentsPage;
      end;
    4:
      begin
        killFrames();
        FDeliveryPage := TPageTemplate.Create(FPageParent);
        FDeliveryPage.Parent := FPageParent;
        //
        FDeliveryPageContent := TDeliveryPageContent.Create(FDeliveryPage);
        FDeliveryPageContent.Parent := FDeliveryPage;
        FDeliveryPageContent.Page := FDeliveryPage;
        FDeliveryPageContent.Align := alClient;
        // init
        Result := FDeliveryPage;
      end;
    5:
      begin
       //FEducationPageContent
        killFrames();
        FEducationPage := TPageTemplate.Create(FPageParent);
        FEducationPage.Parent := FPageParent;
        //
        FEducationPageContent := TEducationPageContent.Create(FEducationPage);
        FEducationPageContent.Parent := FEducationPage;
        FEducationPageContent.Page := FEducationPage;
        FEducationPageContent.Align := alClient;
        // init
        Result := FEducationPage;
      end;
    6:
      begin
        killFrames();
        FShopsPage := TPageTemplate.Create(FPageParent);
        FShopsPage.Parent := FPageParent;
        //
        FShopsPageContent := TShopsPageContent.Create(FShopsPage);
        FShopsPageContent.Parent := FShopsPage;
        FShopsPageContent.Page := FShopsPage;
        FShopsPageContent.Align := alClient;
        // init
        Result := FShopsPage;
      end;
    7:
      begin
        killFrames();
        FServicePage := TPageTemplate.Create(FPageParent);
        FServicePage.Parent := FPageParent;
        //
        FServicePageContent := TServicePageContent.Create(FServicePage);
        FServicePageContent.Parent := FServicePage;
        FServicePageContent.Page := FServicePage;
        FServicePageContent.Align := alClient;
        // init
        Result := FServicePage;
      end;
  end;
end;

procedure TPagesDM.killFrames;
begin
  if Assigned(FMainPage) then
    FreeAndNil(FMainPage);
  if Assigned(FMainPageContent) then
    FreeAndNil(FMainPageContent);
    //
  if Assigned(FActionsPage) then
    FreeAndNil(FActionsPage);
  if Assigned(FActionsPageContent) then
    FreeAndNil(FActionsPageContent);
    //
  if Assigned(FCatalogPage) then
    FreeAndNil(FCatalogPage);
   //
  if Assigned(FPaymentsPage) then
    FreeAndNil(FPaymentsPage);
    //
  if Assigned(FDeliveryPage) then
    FreeAndNil(FDeliveryPage);
    //
  if Assigned(FEducationPage) then
    FreeAndNil(FEducationPage);
    //
  if Assigned(FShopsPage) then
    FreeAndNil(FShopsPage);
  //
  if Assigned(FServicePage) then
    FreeAndNil(FServicePage);
end;

procedure TPagesDM.OnAfterRender(aWidth, aHeight: integer);
begin
  if Assigned(FMainPage) then
    FMainPageContent.OnAfterRender(aWidth, aHeight);
  if Assigned(FActionsPage) then
    FActionsPageContent.OnAfterRender(aWidth, aHeight);
  //
  if Assigned(FCatalogPage) then
    FCatalogPage.OnAfterRender(aWidth, aHeight);
  //
  if Assigned(FCatalogPageContent) then
    FCatalogPageContent.OnAfterRender(aWidth, aHeight);
  //
//  if Assigned(FPaymentsPage) then
//    FPaymentsPage.OnAfterRender(aWidth, aHeight);
  //
  if Assigned(FPaymentsPageContent) then
    FPaymentsPageContent.OnAfterRender(aWidth, aHeight);
    //
  if Assigned(FDeliveryPageContent) then
    FDeliveryPageContent.OnAfterRender(aWidth, aHeight);
    //
  if Assigned(FEducationPageContent) then
    FEducationPageContent.OnAfterRender(aWidth, aHeight);
   //
  if Assigned(FShopsPageContent) then
    FShopsPageContent.OnAfterRender(aWidth, aHeight);
  //
  if Assigned(FServicePageContent) then
    FServicePageContent.OnAfterRender(aWidth, aHeight);
end;

procedure TPagesDM.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight: integer);
begin
  if Assigned(FMainPage) then
    FMainPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  if Assigned(FActionsPage) then
    FActionsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  if Assigned(FCatalogPage) then
    FCatalogPage.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  if Assigned(FCatalogPageContent) then
    FCatalogPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  //
  if Assigned(FPaymentsPage) then
    FPaymentsPage.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  if Assigned(FPaymentsPageContent) then
    FPaymentsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
    //
  if Assigned(FDeliveryPageContent) then
    FDeliveryPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
   //
  if Assigned(FEducationPageContent) then
    FEducationPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  //
  if Assigned(FShopsPageContent) then
    FShopsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
  //
  if Assigned(FServicePageContent) then
    FServicePageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);
end;

procedure TPagesDM.SetPageParent(const Value: TUniScrollBox);
begin
  FPageParent := Value;
end;

end.

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unit uPagesDM;

interface

uses

SysUtils, Classes, uPageTemplate, System.Generics.Collections,

uMainPageContent, //

uActionsPageContent, //

uCatalogPageContent, //

uPaymentsPageContent, //

uDeliveryPageContent, //

uEducationPageContent, //

uShopsPageContent, //

uServicePageContent,

uniScrollBox;

type

TPagesDM = class(TDataModule)

private

FMainPage: TPageTemplate;

FMainPageContent: TMainPageContent;

FActionsPage: TPageTemplate;

FActionsPageContent: TActionsPageContent;

FCatalogPage: TPageTemplate;

FCatalogPageContent: TCatalogPageContent;

FPaymentsPage: TPageTemplate;

FPaymentsPageContent: TPaymentsPageContent;

FDeliveryPage: TPageTemplate;

FDeliveryPageContent: TDeliveryPageContent;

FEducationPage: TPageTemplate;

FEducationPageContent: TEducationPageContent;

FShopsPage: TPageTemplate;

FShopsPageContent: TShopsPageContent;

FServicePage: TPageTemplate;

FServicePageContent: TServicePageContent;

FPageParent: TUniScrollBox;

{ Private declarations }

procedure killFrames;

procedure SetPageParent(const Value: TUniScrollBox);

public

{ Public declarations }

function GetPage(aPageIndex: integer): TPageTemplate;

procedure OnAfterRender(aWidth, aHeight: integer);

procedure OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight: integer);

property PageParent: TUniScrollBox read FPageParent write SetPageParent;

end;

implementation

uses

Vcl.Controls;

{$R *.dfm}

{ TPagesDM }

function TPagesDM.GetPage(aPageIndex: integer): TPageTemplate;

begin

case aPageIndex of

begin

killFrames();

FMainPage := TPageTemplate.Create(FPageParent);

FMainPage.Parent := FPageParent;

FMainPageContent := TMainPageContent.Create(FMainPage);

FMainPageContent.Parent := FMainPage;

FMainPageContent.Page := FMainPage;

FMainPageContent.Align := alClient;

// init

Result := FMainPage;

end;

begin

killFrames();

FActionsPage := TPageTemplate.Create(FPageParent);

FActionsPage.Parent := FPageParent;

FActionsPageContent := TActionsPageContent.Create(FActionsPage);

FActionsPageContent.Parent := FActionsPage;

FActionsPageContent.Page := FActionsPage;

FActionsPageContent.Align := alClient;

// init

Result := FActionsPage;

end;

begin

killFrames();

FCatalogPage := TPageTemplate.Create(FPageParent);

FCatalogPage.Parent := FPageParent;

FCatalogPageContent := TCatalogPageContent.Create(FCatalogPage);

FCatalogPageContent.Parent := FCatalogPage;

FCatalogPageContent.Page := FCatalogPage;

FCatalogPageContent.Align := alClient;

// init

Result := FCatalogPage;

end;

begin

killFrames();

FPaymentsPage := TPageTemplate.Create(FPageParent);

FPaymentsPage.Parent := FPageParent;

FPaymentsPageContent := TPaymentsPageContent.Create(FPaymentsPage);

FPaymentsPageContent.Parent := FPaymentsPage;

FPaymentsPageContent.Page := FPaymentsPage;

FPaymentsPageContent.Align := alClient;

// init

Result := FPaymentsPage;

end;

begin

killFrames();

FDeliveryPage := TPageTemplate.Create(FPageParent);

FDeliveryPage.Parent := FPageParent;

FDeliveryPageContent := TDeliveryPageContent.Create(FDeliveryPage);

FDeliveryPageContent.Parent := FDeliveryPage;

FDeliveryPageContent.Page := FDeliveryPage;

FDeliveryPageContent.Align := alClient;

// init

Result := FDeliveryPage;

end;

begin

//FEducationPageContent

killFrames();

FEducationPage := TPageTemplate.Create(FPageParent);

FEducationPage.Parent := FPageParent;

FEducationPageContent := TEducationPageContent.Create(FEducationPage);

FEducationPageContent.Parent := FEducationPage;

FEducationPageContent.Page := FEducationPage;

FEducationPageContent.Align := alClient;

// init

Result := FEducationPage;

end;

begin

killFrames();

FShopsPage := TPageTemplate.Create(FPageParent);

FShopsPage.Parent := FPageParent;

FShopsPageContent := TShopsPageContent.Create(FShopsPage);

FShopsPageContent.Parent := FShopsPage;

FShopsPageContent.Page := FShopsPage;

FShopsPageContent.Align := alClient;

// init

Result := FShopsPage;

end;

begin

killFrames();

FServicePage := TPageTemplate.Create(FPageParent);

FServicePage.Parent := FPageParent;

FServicePageContent := TServicePageContent.Create(FServicePage);

FServicePageContent.Parent := FServicePage;

FServicePageContent.Page := FServicePage;

FServicePageContent.Align := alClient;

// init

Result := FServicePage;

end;

procedure TPagesDM.killFrames;

begin

if Assigned(FMainPage) then

FreeAndNil(FMainPage);

if Assigned(FMainPageContent) then

FreeAndNil(FMainPageContent);

if Assigned(FActionsPage) then

FreeAndNil(FActionsPage);

if Assigned(FActionsPageContent) then

FreeAndNil(FActionsPageContent);

if Assigned(FCatalogPage) then

FreeAndNil(FCatalogPage);

if Assigned(FPaymentsPage) then

FreeAndNil(FPaymentsPage);

if Assigned(FDeliveryPage) then

FreeAndNil(FDeliveryPage);

if Assigned(FEducationPage) then

FreeAndNil(FEducationPage);

if Assigned(FShopsPage) then

FreeAndNil(FShopsPage);

if Assigned(FServicePage) then

FreeAndNil(FServicePage);

end;

procedure TPagesDM.OnAfterRender(aWidth, aHeight: integer);

begin

if Assigned(FMainPage) then

FMainPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FActionsPage) then

FActionsPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FCatalogPage) then

FCatalogPage.OnAfterRender(aWidth, aHeight);

if Assigned(FCatalogPageContent) then

FCatalogPageContent.OnAfterRender(aWidth, aHeight);

// if Assigned(FPaymentsPage) then

// FPaymentsPage.OnAfterRender(aWidth, aHeight);

if Assigned(FPaymentsPageContent) then

FPaymentsPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FDeliveryPageContent) then

FDeliveryPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FEducationPageContent) then

FEducationPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FShopsPageContent) then

FShopsPageContent.OnAfterRender(aWidth, aHeight);

if Assigned(FServicePageContent) then

FServicePageContent.OnAfterRender(aWidth, aHeight);

end;

procedure TPagesDM.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight: integer);

begin

if Assigned(FMainPage) then

FMainPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FActionsPage) then

FActionsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FCatalogPage) then

FCatalogPage.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FCatalogPageContent) then

FCatalogPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FPaymentsPage) then

FPaymentsPage.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FPaymentsPageContent) then

FPaymentsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FDeliveryPageContent) then

FDeliveryPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FEducationPageContent) then

FEducationPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FShopsPageContent) then

FShopsPageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

if Assigned(FServicePageContent) then

FServicePageContent.OnBrowserResize(aWidth, aHeight, aOldWidth, aOldHeight);

end;

procedure TPagesDM.SetPageParent(const Value: TUniScrollBox);

begin

FPageParent := Value;

end;

end.

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