PartViewer.class.php

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00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2006-2007 by Anton E. Lebedevich                        *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU Lesser General Public License as        *
00007  *   published by the Free Software Foundation; either version 3 of the    *
00008  *   License, or (at your option) any later version.                       *
00009  *                                                                         *
00010  ***************************************************************************/
00011 
00015     class PartViewer
00016     {
00017         protected $viewResolver     = null;
00018         protected $model            = null;
00019         
00020         public function __construct(ViewResolver $resolver, $model = null)
00021         {
00022             $this->viewResolver = $resolver;
00023             $this->model = $model;
00024         }
00025         
00029         public function view($partName, $model = null)
00030         {
00031             Assert::isTrue($model === null || $model instanceof Model);
00032             
00033             // use model from outer template if none specified
00034             if ($model === null) {
00035                 $model = $this->model;
00036                 
00037                 $parentModel = $this->model->has('parentModel')
00038                     ? $this->model->get('parentModel')
00039                     : null;
00040                 
00041             } else
00042                 $parentModel = $this->model;
00043             
00044             $model->set('parentModel', $parentModel);
00045             
00046             $rootModel = $this->model->has('rootModel')
00047                 ? $this->model->get('rootModel')
00048                 : $this->model;
00049             
00050             $model->set('rootModel', $rootModel);
00051             
00052             if ($partName instanceof View)
00053                 $partName->render($model);
00054             else
00055                 $this->viewResolver->resolveViewName($partName)->render($model);
00056             
00057             return $this;
00058         }
00059         
00060         public function partExists($partName)
00061         {
00062             return $this->viewResolver->viewExists($partName);
00063         }
00064         
00068         public function getModel()
00069         {
00070             return $this->model;
00071         }
00072     }
00073 ?>