Examples of org.apache.wicket.Page

org.apache.wicket.Page
Abstract base class for pages. As a {@link MarkupContainer} subclass, a Page can contain acomponent hierarchy and markup in some markup language such as HTML. Users of the framework should not attempt to subclass Page directly. Instead they should subclass a subclass of Page that is appropriate to the markup type they are using, such as {@link WebPage} (for HTML markup).
Page has the following differences to {@link Component}s main concepts:
- Identity - Page numerical identifiers start at 0 for each {@link Session} andincrement for each new page. This numerical identifier is used as the component identifier accessible via {@link #getId()}.
- Construction - When a page is constructed, it is automatically registerd with the application's {@link IPageManager}.
  Pages can be constructed with any constructor like any other component, but if you wish to link to a Page using a URL that is "bookmarkable" (which implies that the URL will not have any session information encoded in it, and that you can call this page directly without having a session first directly from your browser), you need to implement your Page with a no-arg constructor or with a constructor that accepts a {@link PageParameters} argument (which wraps anyquery string parameters for a request). In case the page has both constructors, the constructor with PageParameters will be used.
- Versioning - Pages support the browser's back button when versioning is enabled via {@link #setVersioned(boolean)}. By default all pages are versioned if not configured differently in {@link IPageSettings#setVersionPagesByDefault(boolean)}
@see org.apache.wicket.markup.html.WebPage @see org.apache.wicket.MarkupContainer @see org.apache.wicket.model.CompoundPropertyModel @see org.apache.wicket.Component @author Jonathan Locke @author Chris Turner @author Eelco Hillenius @author Johan Compagner

    }


    @Override
    public PageRenderer get(RenderPageRequestHandler handler)
    {
      Page newPage = (Page)handler.getPageProvider().getPageInstance();
      if (componentInPage != null && lastPage != null &&
        lastPage.getPageClass() != newPage.getPageClass())
      {
        // WICKET-3913: reset startComponent if a new page type is rendered
        componentInPage = null;
      }
      lastRenderedPage = lastPage = newPage;

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      private static final long serialVersionUID = 1L;


      @Override
      public String getObject()
      {
        Page enclosingPage = getPage();
        long pageSize = WicketObjects.sizeof(enclosingPage);
        Bytes pageSizeInBytes = (pageSize > -1 ? Bytes.bytes(pageSize) : null);
        String pageSizeAsString = pageSizeInBytes != null ? pageSizeInBytes.toString()
          : "unknown";

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    IMarkupFragment pageMarkup)
  {
    Args.notNull(component, "component");


    // Create a page object and assign the markup
    Page page = createPage();
    if (page == null)
    {
      fail("The automatically created page should not be null.");
    }


    // Automatically create the page markup if not provided
    if (pageMarkup == null)
    {
      String markup = createPageMarkup(component.getId());
      if (markup == null)
      {
        fail("The markup for the automatically created page should not be null.");
      }


      try
      {
        // set a ContainerInfo to be able to use HtmlHeaderContainer so header contribution
        // still work. WICKET-3700
        ContainerInfo containerInfo = new ContainerInfo(page);
        MarkupResourceStream markupResourceStream = new MarkupResourceStream(
          new StringResourceStream(markup), containerInfo, page.getClass());


        MarkupParser markupParser = getApplication().getMarkupSettings()
          .getMarkupFactory()
          .newMarkupParser(markupResourceStream);
        pageMarkup = markupParser.parse();
      }
      catch (Exception e)
      {
        fail("Error while parsing the markup for the autogenerated page: " + e.getMessage());
      }
    }
    page.setMarkup(pageMarkup);


    // Add the child component
    page.add(component);


    // Preserve 'componentInPage' because #startPage() needs to null-fy it
    ComponentInPage oldComponentInPage = componentInPage;


    // Process the page

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   */
  public <C extends Page> Result isRenderedPage(Class<C> expectedRenderedPageClass)
  {
    Args.notNull(expectedRenderedPageClass, "expectedRenderedPageClass");


    Page page = getLastRenderedPage();
    if (page == null)
    {
      return Result.fail("page was null");
    }
    if (!expectedRenderedPageClass.isAssignableFrom(page.getClass()))
    {
      return Result.fail(String.format("classes not the same, expected '%s', current '%s'",
        expectedRenderedPageClass, page.getClass()));
    }
    return Result.pass();
  }

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  {
    Iterator<Component> iterator = markupIdToComponent.values().iterator();
    while (iterator.hasNext())
    {
      final Component component = iterator.next();
      final Page parentPage = component.findParent(Page.class);
      if (parentPage != null)
      {
        parentPage.detach();
        break;
      }
    }
  }

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    // create the htmlheadercontainer if needed
    if (header == null)
    {
      header = new AjaxHtmlHeaderContainer(this);
      final Page parentPage = component.getPage();
      parentPage.addOrReplace(header);
    }


    RequestCycle requestCycle = component.getRequestCycle();


    // save old response, set new

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         */


        // make sure this page instance was just created so the page can be stateless
        if (page.isPageStateless())
        {
          Page p = (Page)page;
          p.internalInitialize();
          p.internalPrepareForRender(false);
          component = page.get(componentPath);
        }
      }
    }
    if (component == null)

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  @Test
  public void renderInterpolatedTemplate()
  {
    // the page will render just <script> element with url to the template
    // this will register it in the application's ResourceReferenceRegistry
    Page page = tester.startPage(new TemplateResourceReferencePage());


    // make a separate request to the template resource
    CharSequence urlForTemplate = page.urlFor(new PackageResourceReference(
      TextTemplateResourceReferenceTest.class, TEMPLATE_NAME), null);
    tester.executeUrl(urlForTemplate.toString());
    tester.assertContains("TMPL_START\\|" + EXPECTED_VALUE + "\\|TMPL_END");
  }

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   */
  @Test
  public void viewBook() throws Exception
  {
    Book mockBook = new Book("xxId", "xxName");
    Page page = new ViewBook(mockBook);
    tester.startPage(page);


    // assertion
    tester.assertRenderedPage(ViewBook.class);
    tester.assertLabel("id", "xxId");

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   */
  @Test
  public void pageConstructor() throws Exception
  {
    Book mockBook = new Book("xxId", "xxName");
    Page page = new ViewBook(mockBook);
    tester.startPage(page);


    // assertion
    tester.assertRenderedPage(ViewBook.class);
    tester.clickLink("link");

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