Beispiel #1
2
  protected void assignUniqueId(FaceletContext ctx, UIComponent parent, String id, UIComponent c) {

    // If the id is specified as a literal, and the component is being
    // repeated (by c:forEach, for example), use generated unique ids
    // after the first instance
    if (this.id != null && !(this.id.isLiteral() && ComponentSupport.getNeedUniqueIds(ctx))) {
      c.setId(this.id.getValue(ctx));
    } else {
      UIViewRoot root = ComponentSupport.getViewRoot(ctx, parent);
      if (root != null) {
        String uid;
        IdMapper mapper = IdMapper.getMapper(ctx.getFacesContext());
        String mid = ((mapper != null) ? mapper.getAliasedId(id) : id);
        UIComponent ancestorNamingContainer = parent.getNamingContainer();
        if (null != ancestorNamingContainer && ancestorNamingContainer instanceof UniqueIdVendor) {
          uid =
              ((UniqueIdVendor) ancestorNamingContainer).createUniqueId(ctx.getFacesContext(), mid);
        } else {
          uid = root.createUniqueId(ctx.getFacesContext(), mid);
        }
        c.setId(uid);
      }
    }

    if (this.rendererType != null) {
      c.setRendererType(this.rendererType);
    }
  }
Beispiel #2
0
  protected void addComponentToView(
      FaceletContext ctx, UIComponent parent, UIComponent c, boolean componentFound) {

    FacesContext context = ctx.getFacesContext();
    boolean suppressEvents = ComponentSupport.suppressViewModificationEvents(context);
    boolean compcomp = UIComponent.isCompositeComponent(c);

    if (suppressEvents && componentFound && !compcomp) {
      context.setProcessingEvents(false);
    }

    ComponentSupport.addComponent(ctx, parent, c);

    if (suppressEvents && componentFound && !compcomp) {
      context.setProcessingEvents(true);
    }
  }
Beispiel #3
0
 @SuppressWarnings({"UnusedDeclaration"})
 protected UIComponent findReparentedComponent(
     FaceletContext ctx, UIComponent parent, String tagId) {
   UIComponent facet = parent.getFacets().get(UIComponent.COMPOSITE_FACET_NAME);
   if (facet != null) {
     UIComponent newParent = facet.findComponent((String) parent.getAttributes().get(tagId));
     if (newParent != null) return ComponentSupport.findChildByTagId(newParent, tagId);
   }
   return null;
 }
Beispiel #4
0
  protected void doOrphanedChildCleanup(FaceletContext ctx, UIComponent parent, UIComponent c) {

    ComponentSupport.finalizeForDeletion(c);
    if (getFacetName(parent) == null) {
      FacesContext context = ctx.getFacesContext();
      boolean suppressEvents = ComponentSupport.suppressViewModificationEvents(context);

      if (suppressEvents) {
        // if the component has already been found, it will be removed
        // and added back to the view.  We don't want to publish events
        // for this case.
        context.setProcessingEvents(false);
      }
      // suppress the remove event for this case since it will be re-added
      parent.getChildren().remove(c);
      if (suppressEvents) {
        // re-enable event processing
        context.setProcessingEvents(true);
      }
    }
  }
Beispiel #5
0
  protected void doExistingComponentActions(FaceletContext ctx, String id, UIComponent c) {

    // mark all children for cleaning
    if (log.isLoggable(Level.FINE)) {
      log.fine(owner.getTag() + " Component[" + id + "] Found, marking children for cleanup");
    }
    ComponentSupport.markForDeletion(c);
    /*
     * Repply the id, for the case when the component tree was changed, and the id's are set explicitly.
     */
    if (this.id != null) {
      c.setId(this.id.getValue(ctx));
    }
  }
Beispiel #6
0
  @SuppressWarnings({"UnusedDeclaration"})
  protected UIComponent findChild(FaceletContext ctx, UIComponent parent, String tagId) {

    return ComponentSupport.findChildByTagId(parent, tagId);
  }
Beispiel #7
0
  /**
   * Method handles UIComponent tree creation in accordance with the JSF 1.2 spec.
   *
   * <ol>
   *   <li>First determines this UIComponent's id by calling {@link
   *       javax.faces.view.facelets.ComponentHandler#getTagId()}.
   *   <li>Search the parent for an existing UIComponent of the id we just grabbed
   *   <li>If found, {@link
   *       com.sun.faces.facelets.tag.jsf.ComponentSupport#markForDeletion(javax.faces.component.UIComponent)
   *       mark} its children for deletion.
   *   <li>If <i>not</i> found, call {@link #createComponent(FaceletContext) createComponent}.
   *       <ol>
   *         <li>Only here do we apply {@link
   *             com.sun.faces.facelets.tag.MetaTagHandlerImpl#setAttributes(FaceletContext,
   *             Object)}
   *         <li>Set the UIComponent's id
   *         <li>Set the RendererType of this instance
   *       </ol>
   *   <li>Now apply the nextHandler, passing the UIComponent we've created/found.
   *   <li>Now add the UIComponent to the passed parent
   *   <li>Lastly, if the UIComponent already existed (found), then {@link
   *       ComponentSupport#finalizeForDeletion(UIComponent) finalize} for deletion.
   * </ol>
   *
   * @throws TagException if the UIComponent parent is null
   */
  @Override
  public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
    FacesContext context = ctx.getFacesContext();

    // make sure our parent is not null
    if (parent == null) {
      throw new TagException(owner.getTag(), "Parent UIComponent was null");
    }

    // our id
    String id = ctx.generateUniqueId(owner.getTagId());

    // grab our component
    UIComponent c = findChild(ctx, parent, id);
    if (null == c
        && context.isPostback()
        && UIComponent.isCompositeComponent(parent)
        && parent.getAttributes().get(id) != null) {
      c = findReparentedComponent(ctx, parent, id);
    } else {
      /**
       * If we found a child that is dynamic, the actual parent might have changed, so we need to
       * remove it from the actual parent. The reapplyDynamicActions will then replay the actions
       * and will make sure it ends up in the correct order.
       */
      if (c != null
          && c.getParent() != parent
          && c.getAttributes().containsKey(DYNAMIC_COMPONENT)) {
        c.getParent().getChildren().remove(c);
      }
    }

    boolean componentFound = false;
    if (c != null) {
      componentFound = true;
      doExistingComponentActions(ctx, id, c);
    } else {
      c = this.createComponent(ctx);

      doNewComponentActions(ctx, id, c);
      assignUniqueId(ctx, parent, id, c);

      // hook method
      owner.onComponentCreated(ctx, c, parent);
    }

    CompositeComponentStackManager ccStackManager =
        CompositeComponentStackManager.getManager(context);
    boolean compcompPushed = pushComponentToEL(ctx, c, ccStackManager);

    if (ProjectStage.Development == context.getApplication().getProjectStage()) {
      ComponentSupport.setTagForComponent(context, c, this.owner.getTag());
    }

    // If this this a naming container, stop generating unique Ids
    // for the repeated tags
    boolean setUniqueIds = false;
    boolean oldUnique = false;
    if (c instanceof NamingContainer) {
      oldUnique = ComponentSupport.setNeedUniqueIds(ctx, false);
      setUniqueIds = true;
    }
    try {
      // first allow c to get populated
      owner.applyNextHandler(ctx, c);
    } finally {
      if (setUniqueIds) ComponentSupport.setNeedUniqueIds(ctx, oldUnique);
    }

    // finish cleaning up orphaned children
    if (componentFound) {
      doOrphanedChildCleanup(ctx, parent, c);
    }

    this.privateOnComponentPopulated(ctx, c);
    owner.onComponentPopulated(ctx, c, parent);
    // add to the tree afterwards
    // this allows children to determine if it's
    // been part of the tree or not yet
    addComponentToView(ctx, parent, c, componentFound);
    adjustIndexOfDynamicChildren(context, c);
    popComponentFromEL(ctx, c, ccStackManager, compcompPushed);
  }