File web/markup/html/HeaderContainer.php

 1: <?php
 2: 
 3: /**
 4:  * Picon Framework
 5:  * http://code.google.com/p/picon-framework/
 6:  *
 7:  * Copyright (C) 2011-2012 Martin Cassidy <martin.cassidy@webquub.com>
 8: 
 9:  * Picon Framework is free software: you can redistribute it and/or modify
10:  * it under the terms of the GNU General Public License as published by
11:  * the Free Software Foundation, either version 3 of the License, or
12:  * (at your option) any later version.
13: 
14:  * Picon Framework is distributed in the hope that it will be useful,
15:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17:  *  General Public License for more details.
18: 
19:  * You should have received a copy of the GNU General Public License
20:  * along with Picon Framework.  If not, see <http://www.gnu.org/licenses/>.
21:  * */
22: 
23: namespace picon;
24: 
25: /**
26:  * Represents the &lt;head&gt; element
27:  *
28:  * @author Martin Cassidy
29:  * @package web/markup/html
30:  */
31: class HeaderContainer extends TransparentMarkupContainer
32: {
33:     public function __construct($id, Model $model = null)
34:     {
35:         parent::__construct($id, $model);
36:         $this->setRenderBodyOnly(true);
37:     }
38:     
39:     protected function onComponentTagBody(ComponentTag $tag)
40:     {
41:         $this->getResponse()->write('<head>');
42:         parent::onComponentTagBody($tag);
43:         $page = $this->getPage();
44:         $headerResponse = new HeaderResponse($this->getResponse());
45:         PiconApplication::get()->getComponentRenderHeadListener()->onHeadRendering($this, $headerResponse);
46:         $page->renderHead($headerResponse);
47:         $self = $this;
48:         $callback = function(Component &$component) use($headerResponse, $self)
49:         {
50:             $component->renderHeadContainer($self, $headerResponse);
51:             return Component::VISITOR_CONTINUE_TRAVERSAL;
52:         };
53:         
54:         $page->visitChildren(Component::getIdentifier(), $callback);
55:         $this->getResponse()->write('</head>');
56:     }
57:     
58:     public function getMarkup()
59:     {
60:         $parent = $this->getParent();
61:         
62:         if($parent==null)
63:         {
64:             throw new \RuntimeException('Unable to locate parent for header container');
65:         }
66:         
67:         $headerMarkup = $parent->getMarkup()->getChildByName('head');
68:         
69:         if($headerMarkup!=null)
70:         {
71:             return $headerMarkup;
72:         }
73:         
74:         $headerMarkup = MarkupUtils::findPiconTag('head', $parent->getMarkup());
75:         return $headerMarkup;         
76:     }
77:     
78: }
79: 
80: ?>
81:
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