defender-security / framework / base / view.php

view.php in Defender Security – Malware Scanner, Login Security & Firewall 3.0.1, at framework/base/view.php

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1	<?php
2	/**
3	* Author: Hoang Ngo
4	*/
5
6	namespace Calotes\Base;
7
8	class View extends Component {
9	const EVENT_BEFORE_RENDER = 'beforeRender', EVENT_AFTER_RENDER = 'afterRender';
10
11	/**
12	* @var array
13	*/
14	public $blocks = array();
15	/**
16	* @var array
17	*/
18	public $params = array();
19	/**
20	* Template file this view should render in
21	*
22	* @var null
23	*/
24	public $layout = null;
25	/**
26	* The file contains content of this view, relative path
27	*
28	* @var null
29	*/
30	public $view_file = null;
31
32	/**
33	* @var array
34	*/
35	protected $_cache_stack = array();
36	/**
37	* The folder contains view files, absolute path
38	*
39	* @var null
40	*/
41	private $_base_path = null;
42
43	public function __construct( $base_path ) {
44	$this->_base_path = $base_path;
45	}
46
47	/**
48	* Render a view file, this will be use to render a whole page, if a layout defined, then we will render layout + view
49	*
50	* @param $view
51	* @param array $params
52	*
53	* @return string
54	*/
55	public function render( $view, $params = array() ) {
56	$this->trigger( self::EVENT_BEFORE_RENDER );
57	$view_file = $this->_base_path . DIRECTORY_SEPARATOR . $view . '.php';
58	if ( is_file( $view_file ) ) {
59	$content = $this->render_php_file( $view_file, $params );
60	$this->trigger( self::EVENT_AFTER_RENDER );
61
62	return $content;
63	} else {
64	echo $view_file;
65	}
66
67	return false;
68	}
69
70	/**
71	* @param $file
72	* @param array $params
73	*
74	* @return string
75	*/
76	private function render_php_file( $file, $params = array() ) {
77	ob_start();
78	ob_implicit_flush( false );
79	extract( $params, EXTR_OVERWRITE );
80	require $file;
81
82	return ob_get_clean();
83	}
84
85	/**
86	* Starting a cache block
87	*/
88	public function begin_cache( $id ) {
89	ob_start();
90	$this->_cache_stack[ $id ] = null;
91	}
92
93	/**
94	* @param $id
95	*
96	* @return string
97	*/
98	public function end_cache( $id ) {
99	$cached = ob_get_clean();
100	$this->_cache_stack[ $id ] = $cached;
101
102	return $cached;
103	}
104
105	/**
106	* Get cache content cached
107	*
108	* @param $id
109	*
110	* @return mixed\|null
111	*/
112	public function get_cache( $id ) {
113	return isset( $this->_cache_stack[ $id ] ) ? $this->_cache_stack[ $id ] : null;
114	}
115	}
116