Rev 27 | Rev 51 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 27 | PointedEar | 1 | <?php |
| 2 | |||
| 29 | PointedEar | 3 | require_once __DIR__ . '/Application.php'; |
| 4 | require_once __DIR__ . '/AbstractModel.php'; |
||
| 27 | PointedEar | 5 | |
| 6 | /** |
||
| 7 | * A general view handled by a controller according to the MVC pattern |
||
| 8 | * |
||
| 9 | * @author tlahn |
||
| 10 | */ |
||
| 11 | class View |
||
| 12 | { |
||
| 13 | /** |
||
| 14 | * Default template resource path |
||
| 15 | * |
||
| 16 | * @var string |
||
| 17 | */ |
||
| 18 | protected $_template = ''; |
||
| 19 | |||
| 20 | /** |
||
| 21 | * Content that can be inserted in the template |
||
| 22 | * |
||
| 23 | * @var string |
||
| 24 | */ |
||
| 25 | protected $_content = ''; |
||
| 26 | |||
| 27 | /** |
||
| 28 | * Template variables. The variable name serves as item key, the item's value |
||
| 29 | * is the variable value. |
||
| 30 | * |
||
| 31 | * @var array |
||
| 32 | */ |
||
| 33 | protected $_template_vars = array(); |
||
| 34 | |||
| 35 | /** |
||
| 36 | * Creates a new view |
||
| 37 | * |
||
| 38 | * @param string $template |
||
| 39 | * Template resource path |
||
| 40 | */ |
||
| 41 | public function __construct($template) |
||
| 42 | { |
||
| 43 | $this->_template = $template; |
||
| 44 | } |
||
| 45 | |||
| 46 | /** |
||
| 47 | * Magic setter method used for defining template variables |
||
| 48 | * |
||
| 49 | * @param string $name |
||
| 50 | * Variable name |
||
| 51 | * @param mixed $value |
||
| 52 | * Variable value |
||
| 53 | */ |
||
| 54 | public function __set($name, $value) |
||
| 55 | { |
||
| 56 | $this->_template_vars[$name] = $value; |
||
| 57 | } |
||
| 58 | |||
| 59 | /** |
||
| 60 | * Magic getter method used for retrieving values of template variables |
||
| 61 | * |
||
| 62 | * @param string $name |
||
| 63 | * Variable name |
||
| 64 | */ |
||
| 65 | public function __get($name) |
||
| 66 | { |
||
| 67 | return $this->_template_vars[$name]; |
||
| 68 | } |
||
| 69 | |||
| 70 | /** |
||
| 71 | * Returns <var>$v</var> with occurences of '&' (ampersand), '"' (double quote), |
||
| 72 | * "'" (single quote), '<' (less than), and '>' (greater than) replaced by their |
||
| 73 | * HTML character entity references, if any, or their numeric HTML character |
||
| 74 | * reference (as required primarily in HTML for attribute values and element |
||
| 75 | * content). |
||
| 76 | * |
||
| 77 | * @param mixed $value |
||
| 78 | */ |
||
| 79 | public function escape($value) |
||
| 80 | { |
||
| 81 | if (is_array($value)) |
||
| 82 | { |
||
| 83 | return array_map(array('self', 'escape'), $value); |
||
| 84 | } |
||
| 85 | else if (is_object($value)) |
||
| 86 | { |
||
| 87 | if ($value instanceof AbstractModel) |
||
| 88 | { |
||
| 89 | foreach ($value->getPropertyVars() as $varName) |
||
| 90 | { |
||
| 91 | $value->$varName = self::escape($value->$varName); |
||
| 92 | } |
||
| 93 | } |
||
| 94 | |||
| 95 | return $value; |
||
| 96 | } |
||
| 97 | else |
||
| 98 | { |
||
| 99 | if (is_string($value)) |
||
| 100 | { |
||
| 101 | $encoding = mb_detect_encoding($value); |
||
| 102 | if ($encoding === 'ASCII') |
||
| 103 | { |
||
| 104 | $encoding = 'ISO-8859-1'; |
||
| 105 | } |
||
| 106 | return htmlspecialchars($value, ENT_QUOTES, $encoding); |
||
| 107 | } |
||
| 108 | |||
| 109 | return $value; |
||
| 110 | } |
||
| 111 | } |
||
| 112 | |||
| 113 | /** |
||
| 114 | * Assigns a value to a template variable |
||
| 115 | * |
||
| 116 | * @param string $name |
||
| 117 | * Variable name |
||
| 118 | * @param mixed $value |
||
| 119 | * Variable value |
||
| 120 | * @param bool $escape |
||
| 121 | * If <code>true</code>, replace all potentially conflicting characters |
||
| 122 | * in <var>$value</var> with their HTML entity references. The default is |
||
| 123 | * <code>false</code>. |
||
| 124 | * @return mixed The assigned value (after possible HTML encoding) |
||
| 125 | * @see View::escape() |
||
| 126 | */ |
||
| 127 | public function assign($name, $value, $escape = false) |
||
| 128 | { |
||
| 129 | if ($escape) |
||
| 130 | { |
||
| 131 | $value = $this->escape($value); |
||
| 132 | } |
||
| 133 | |||
| 134 | $this->$name = $value; |
||
| 135 | return $value; |
||
| 136 | } |
||
| 137 | |||
| 138 | /** |
||
| 139 | * Renders the view by including a template |
||
| 140 | * |
||
| 141 | * @param string $template |
||
| 142 | * Optional alternative template resource path. |
||
| 143 | * If not provided, the default template ($template property) will be used. |
||
| 144 | * @throws Exception if no template has been defined before |
||
| 145 | */ |
||
| 146 | public function render($template = null, $content = null) |
||
| 147 | { |
||
| 148 | if (!is_null($content)) |
||
| 149 | { |
||
| 150 | ob_start(); |
||
| 151 | require_once $content; |
||
| 152 | $this->_content = ob_get_contents(); |
||
| 153 | ob_end_clean(); |
||
| 154 | } |
||
| 155 | |||
| 156 | if (!is_null($template)) |
||
| 157 | { |
||
| 158 | require $template; |
||
| 159 | } |
||
| 160 | elseif ($this->_template) |
||
| 161 | { |
||
| 162 | require $this->_template; |
||
| 163 | } |
||
| 164 | else |
||
| 165 | { |
||
| 166 | throw new Exception('No template defined'); |
||
| 167 | } |
||
| 168 | } |
||
| 169 | |||
| 170 | /** |
||
| 171 | * Returns the content for insertion into the template |
||
| 172 | */ |
||
| 173 | public function getContent() |
||
| 174 | { |
||
| 175 | return $this->_content; |
||
| 176 | } |
||
| 177 | |||
| 178 | /** |
||
| 179 | * @param string[optional] $controller |
||
| 180 | * @param string[optional] $action |
||
| 181 | * @param int[optional] $id |
||
| 182 | * @see Application::getURL() |
||
| 183 | */ |
||
| 184 | public function getURL($controller = null, $action = null, $id = null) |
||
| 185 | { |
||
| 186 | return Application::getInstance()->getURL($controller, $action, $id); |
||
| 187 | } |
||
| 188 | } |
||
| 189 | |||
| 190 | ?> |