Layout.php
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<?php
/**
* Created by PhpStorm.
* User: liuziyang
* Date: 14-1-12
* Time: 16:32
*/
class QLib_Layout implements Yaf_View_Interface
{
public $breadcrumb = array();
public $engine;
protected $options = array();
protected $layout_path;
protected $layout;
protected $content;
protected $tpl_vars = array();
protected $tpl_dir;
public function __construct($path, $options = array())
{
$this->layout_path = $path;
$this->options = $options;
}
protected function engine()
{
$this->engine = $this->engine ? : new Yaf_View_Simple(
$this->tpl_dir,
$this->options
);
return $this->engine;
}
public function setScriptPath($path)
{
if (is_readable($path)) {
$this->tpl_dir = $path;
$this->engine()->setScriptPath($path);
$this->layout_path = $path . "/../layouts";
return true;
}
throw new Exception("Invalid path: {$path}");
}
public function getScriptPath()
{
return $this->engine()->getScriptPath();
}
public function setLayout($name)
{
$this->layout = $name;
}
public function getLayout()
{
return $this->layout;
}
public function setLayoutPath($path)
{
$this->layout_path = $path;
return $this;
}
public function getLayoutPath()
{
$config = Yaf_Application::app()->getConfig()->get('application');
return $this->layout_path . "/" . $this->layout . ".{$config->view->ext}";
}
public function __set($name, $value)
{
$this->assign($name, $value);
}
public function __isset($name)
{
return (null !== $this->engine()->$name);
}
public function __unset($name)
{
$this->engine()->clear($name);
}
public function assign($name, $value = null)
{
$this->tpl_vars[$name] = $value;
$this->engine()->assign($name, $value);
}
public function assignRef($name, &$value)
{
$this->tpl_vars[$name] = $value;
$this->engine()->assignRef($name, $value);
}
public function clearVars()
{
$this->tpl_vars = array();
$this->engine()->clear();
}
public function render($tpl, $tpl_vars = array())
{
$tpl_vars = array_merge($this->tpl_vars, $tpl_vars);
$this->content = $this->engine()->render($tpl, $tpl_vars);
if (null == $this->layout) {
return $this->content;
}
$ref = new ReflectionClass($this->engine());
$prop = $ref->getProperty('_tpl_vars');
$prop->setAccessible(true);
$view_vars = $prop->getValue($this->engine());
$tpl_vars = array_merge($tpl_vars, $view_vars);
$tpl_vars['content'] = $this->content;
$this->engine()->assign('breadcrumb', $this->breadcrumb);
return $this->engine()->render(
$this->getLayoutPath(),
$tpl_vars
);
}
public function display($tpl, $tpl_vars = array())
{
echo $this->render($tpl, $tpl_vars);
}
}