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

   * 
   */
  @Test
  public void assertComponentOnAjaxResponse()
  {
    final Page page = new MockPageWithLink();
    AjaxLink<Void> ajaxLink = new AjaxLink<Void>(MockPageWithLink.LINK_ID)
    {
      private static final long serialVersionUID = 1L;


      @Override
      public void onClick(AjaxRequestTarget target)
      {
        // Replace the link with a normal Link
        Link<Void> link = new Link<Void>(MockPageWithLink.LINK_ID)
        {
          private static final long serialVersionUID = 1L;


          @Override
          public void onClick()
          {
          }
        };
        link.setOutputMarkupId(true);


        page.replace(link);


        target.add(link);
      }
    };
    ajaxLink.setOutputMarkupId(true);


    page.add(ajaxLink);


    tester.startPage(page);


    // Click the link
    tester.clickLink(MockPageWithLink.LINK_ID);

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    labelModel.setObject("Label 1");
    final Label label = new Label(MockPageWithLinkAndLabel.LABEL_ID, labelModel);
    label.setOutputMarkupId(true);


    final Page page = new MockPageWithLinkAndLabel();
    AjaxLink<Void> ajaxLink = new AjaxLink<Void>(MockPageWithLinkAndLabel.LINK_ID)
    {
      private static final long serialVersionUID = 1L;


      @Override
      public void onClick(AjaxRequestTarget target)
      {
        labelModel.setObject("Label which needs encoding: [] ][");
        target.add(label);
      }
    };
    ajaxLink.setOutputMarkupId(true);


    page.add(ajaxLink);
    ajaxLink.add(label);


    tester.startPage(page);


    // Click the link

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      appendAssignment(buffer, "settings.heightUnit", getHeightUnit());
    }


    if (isCustomComponent() == false)
    {
      Page page = createPage();
      if (page == null)
      {
        throw new WicketRuntimeException("Error creating page for modal dialog.");
      }
      CharSequence pageUrl = null;
      RequestCycle requestCycle = RequestCycle.get();


      if (page.isPageStateless())
      {
        pageUrl = requestCycle.urlFor(page.getClass(), page.getPageParameters());
        appendAssignment(buffer, "settings.ie8_src", pageUrl);
      }
      else
      {
        IRequestHandler handler = new RenderPageRequestHandler(new PageProvider(page));

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  }


  public void testPageProperties_stored()
  {
    TestMapperContext mapperContext = new TestMapperContext();
    Page page = new TestPage();
    mapperContext.getPageManager().touchPage(page);
    mapperContext.getPageManager().commitRequest();


    // by cleaning session cache we make sure of not being testing the same in-memory instance
    mapperContext.cleanSessionCache();


    PageProvider provider = mapperContext.new TestPageProvider(page.getPageId(), 0);
    assertTrue(provider.hasPageInstance());
    assertFalse(provider.isPageInstanceFresh());
  }

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   * @return this
   */
  public final CheckBoxMultipleChoice<T> setPrefix(final String prefix)
  {
    // Tell the page that this component's prefix was changed
    final Page page = findPage();
    if (page != null)
    {
      addStateChange();
    }

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   * @return this
   */
  public final CheckBoxMultipleChoice<T> setSuffix(final String suffix)
  {
    // Tell the page that this component's suffix was changed
    final Page page = findPage();
    if (page != null)
    {
      addStateChange();
    }

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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());
      }
    }


    if (page instanceof StartComponentInPage)
    {
      ((StartComponentInPage)page).setPageMarkup(pageMarkup);
    }
    else
    {
      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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      appendAssignment(buffer, "settings.heightUnit", getHeightUnit());
    }


    if (isCustomComponent() == false)
    {
      Page page = createPage();
      if (page == null)
      {
        throw new WicketRuntimeException("Error creating page for modal dialog.");
      }
      CharSequence pageUrl;
      RequestCycle requestCycle = RequestCycle.get();


      page.getSession().getPageManager().touchPage(page);
      if (page.isPageStateless())
      {
        pageUrl = requestCycle.urlFor(page.getClass(), page.getPageParameters());
      }
      else
      {
        IRequestHandler handler = new RenderPageRequestHandler(new PageProvider(page));
        pageUrl = requestCycle.urlFor(handler);

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    session.getPageManager().sessionExpired(session.getId());


    // fire a request to the ajax link on the expired page
    executeAjaxUrlWithLastBaseUrl(urlToAjaxLink);


    Page lastRenderedPage = tester.getLastRenderedPage();
    int lastRenderedPageId = lastRenderedPage.getPageId();
    assertTrue("A new page must be create ", lastRenderedPageId > initialPageId);
  }

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