151 lines
3.7 KiB
PHP
151 lines
3.7 KiB
PHP
<?php
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namespace top\library\template\driver;
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use top\library\Register;
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use top\library\template\driver\tags\Engine;
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use top\library\template\ifs\TemplateIfs;
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class Top implements TemplateIfs
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{
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/**
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* @var null 当前实例
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*/
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private static $instance = null;
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/**
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* @var null 模板引擎实现
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*/
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private $engine = null;
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/**
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* @var null 模板配置
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*/
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private $config = null;
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/**
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* @var bool 缓存状态
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*/
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private $cache = false;
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/**
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* 构造方法
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* Top constructor.
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*/
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private function __construct()
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{
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}
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/**
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* 外部获取当前类实例
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* @return null|Top
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*/
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public static function instance()
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{
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if (!self::$instance) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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public function run()
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{
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$this->engine = Engine::instance();
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$this->config = Register::get('Config')->get('view');
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return $this;
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}
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/**
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* 编译文件
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* @param $filename
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* @return string
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*/
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private function compile($filename)
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{
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$compileFileName = $this->config['compileDir'] . md5($filename) . '.php';
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if (!file_exists($compileFileName) || DEBUG === true) {
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if (!is_dir($this->config['compileDir'])) {
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mkdir($this->config['compileDir'], 0777, true);
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}
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if (isset($this->config['tagLib']) && !empty($this->config['tagLib'])) {
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foreach ($this->config['tagLib'] as $lib) {
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$this->engine->loadTaglib($lib);
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}
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}
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$content = file_get_contents($filename);
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$content = $this->engine->compile($content);
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$content = $this->engine->returnRaw($content);
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file_put_contents($compileFileName, $content);
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}
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return $compileFileName;
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}
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/**
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* @param $status
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*/
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public function cache($status)
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{
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$this->cache = $status;
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}
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/**
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* 缓存文件
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* @param $filename
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* @param $params
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* @return string
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* @throws \Exception
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*/
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private function cacheFile($filename, $params)
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{
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if (isset($_SERVER['REQUEST_URI'])) {
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$fileIdent = md5($_SERVER['REQUEST_URI']);
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} else {
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$fileIdent = request()->module() . request()->controller() . request()->method();
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}
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$filePath = $this->config['cacheDir'] . $fileIdent;
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$cache = Register::get('FileCache');
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extract($params);
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ob_start();
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require $filename;
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$content = ob_get_clean();
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ob_clean();
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if ($cache->set($filePath, $content)) {
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return $filePath;
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} else {
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throw new \Exception('无法创建缓存文件');
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}
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}
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/**
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* 渲染文件并返回内容
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* @param $file
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* @param $params
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* @param $cache
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* @return bool|false|mixed|string
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* @throws \Exception
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*/
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public function fetch($file, $params, $cache)
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{
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$filename = $this->config['dir'] . $file . '.' . $this->config['ext'];
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if (file_exists($filename)) {
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$filename = $this->compile($filename);
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if ($this->cache || $cache) {
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$filename = $this->cacheFile($filename, $params);
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return file_get_contents($filename);
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} else {
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extract($params);
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ob_start();
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require $filename;
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$content = ob_get_contents();
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ob_clean();
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return $content;
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}
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} else {
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throw new \Exception("模板文件 $file 不存在");
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}
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}
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}
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