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79 lines
2.7 KiB
79 lines
2.7 KiB
12 years ago
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<?php
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namespace yii\base;
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/**
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* Created by JetBrains PhpStorm.
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* User: qiang
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* Date: 2/1/13
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* Time: 12:43 PM
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* To change this template use File | Settings | File Templates.
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*/
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abstract class ViewRenderer extends Component
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{
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/**
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* @var boolean whether to store the parsing results in the application's
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* runtime directory. Defaults to true. If false, the parsing results will
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* be saved as files under the same directory as the source view files and the
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* file names will be the source file names appended with letter 'c'.
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*/
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public $useRuntimePath = true;
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/**
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* @var integer the chmod permission for temporary directories and files
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* generated during parsing. Defaults to 0755 (owner rwx, group rx and others rx).
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*/
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public $filePermission = 0755;
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/**
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* @var string the extension name of the view file. Defaults to '.php'.
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*/
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public $fileExtension = '.php';
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/**
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* Parses the source view file and saves the results as another file.
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* @param string $sourceFile the source view file path
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* @param string $viewFile the resulting view file path
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*/
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abstract protected function generateViewFile($sourceFile, $viewFile);
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/**
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* Renders a view file.
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* This method is required by {@link IViewRenderer}.
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* @param CBaseController $context the controller or widget who is rendering the view file.
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* @param string $sourceFile the view file path
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* @param mixed $data the data to be passed to the view
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* @param boolean $return whether the rendering result should be returned
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* @return mixed the rendering result, or null if the rendering result is not needed.
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*/
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public function renderFile($context, $sourceFile, $data, $return)
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{
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if (!is_file($sourceFile) || ($file = realpath($sourceFile)) === false) {
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throw new CException(Yii::t('yii', 'View file "{file}" does not exist.', array('{file}' => $sourceFile)));
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}
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$viewFile = $this->getViewFile($sourceFile);
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if (@filemtime($sourceFile) > @filemtime($viewFile)) {
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$this->generateViewFile($sourceFile, $viewFile);
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@chmod($viewFile, $this->filePermission);
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}
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return $context->renderInternal($viewFile, $data, $return);
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}
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/**
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* Generates the resulting view file path.
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* @param string $file source view file path
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* @return string resulting view file path
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*/
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protected function getViewFile($file)
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{
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if ($this->useRuntimePath) {
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$crc = sprintf('%x', crc32(get_class($this) . Yii::getVersion() . dirname($file)));
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$viewFile = Yii::app()->getRuntimePath() . DIRECTORY_SEPARATOR . 'views' . DIRECTORY_SEPARATOR . $crc . DIRECTORY_SEPARATOR . basename($file);
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if (!is_file($viewFile)) {
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@mkdir(dirname($viewFile), $this->filePermission, true);
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}
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return $viewFile;
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} else {
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return $file . 'c';
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}
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}
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}
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