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