103 lines
2.9 KiB
PHP
103 lines
2.9 KiB
PHP
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<?php
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/*-----------------------------------------------------+
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* 视图(模板)处理
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* @author yeahoo2000@gmail.com
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+-----------------------------------------------------*/
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class View{
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private $tplFile;
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private $layoutFile;
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private $blocks = [];
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private $blockStack = [];
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private $path;
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private $baseUrl;
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public $vars;
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// 缓存时间，0:不生成缓存文件 -1:永久缓存
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public $cacheTime;
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// 缓存文件名，相对于VAR_DIR路径
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public $cacheFile;
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public function __construct(){
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$this->path = ROOT."/tpl";
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$this->vars = new ObjectBaseArray();
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$this->baseUrl = App::getBaseUrl();
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}
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public function setTpl($name){
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$file = "{$this->path}/{$name}.tpl.php";
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if(!file_exists($file)){
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throw new ErrorException("找不到模板文件:$file");
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}
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$this->tplFile = $file;
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}
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public function compile(){
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if(empty($this->tplFile)){
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throw new ErrorException("尝试编译一个未设置模板文件的视图");
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}
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$eReport = error_reporting();
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error_reporting(E_ALL ^E_NOTICE);
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extract($this->vars->getArray());
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ob_start();
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@include $this->tplFile;
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$content = ob_get_clean();
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error_reporting($eReport);
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if($this->layoutFile){
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ob_start();
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include $this->layoutFile;
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$content = ob_get_clean();
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}
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if(0 != $this->cacheTime && strlen($this->cacheFile)){
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OS::writeFile($this->cacheFile, $contents);
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}
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return $content;
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}
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public function render($name = null){
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if(($this->cacheTime < 0 && file_exists($this->cacheFile)) || (time() - @filemtime($this->cacheFile)) <= $this->cacheTime){
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include $this->cacheFile;
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return;
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}
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if(!is_null($name)) $this->setTpl($name);
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echo $this->compile();
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}
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public function cleanCache(){
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OS::removeFile($this->cacheFile);
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}
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public function layout($name){
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$file = "{$this->path}/{$name}.layout.php";
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if(!file_exists($file)){
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throw new ErrorException("找不到模板布局文件:$file");
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}
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$this->layoutFile = $file;
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}
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public function block($name){
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if(isset($this->blocks[$name])){
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echo $this->blocks[$name];
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return;
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}
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// 如果未指定区块内容，则自动查找相应的区块定义文件
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$file = "{$this->path}/{$name}.block.php";
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if(!file_exists($file)) return;
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include $file;
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}
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public function blockStart($name){
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array_push($this->blockStack, $name);
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ob_start();
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}
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public function blockEnd($name){
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$n = array_pop($this->blockStack);
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if($n != $name){
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throw new ErrorException('区块定义有误，未配对或有交叉');
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}
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$this->blocks[$name] = ob_get_clean();
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}
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}
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