/**
* Construct view script path
*
* Used by render() and display to determine the path to the view script.
*
* @param string $action
* Defaults to action registered in request object
*
* @return string
* @throws InvalidArgumentException with bad $action
*/
protected function getViewScript($action = null)
{
// 如果已经手动设置，则使用自己的设置
if (!empty($this->_script)) {
$script = $this->_script;
} else {
$request = $this->getRequest();
if (null === $action) {
$action = $request->getActionName();
} elseif (!is_string($action)) {
throw new Yaf_Exception('Invalid action for view rendering');
}
$action = str_replace('_', DIRECTORY_SEPARATOR, strtolower($action));
$script = $action . '.' . Yaf_G::YAF_DEFAULT_VIEW_EXT;
$controller = $request->getControllerName();
if ($controller != null) {
$controller = str_replace('_', DIRECTORY_SEPARATOR, $controller);
}
$script = $request->getModuleName() . DIRECTORY_SEPARATOR . $controller . DIRECTORY_SEPARATOR . $script;
}
$script = trim($script, DIRECTORY_SEPARATOR);
$script = Yaf_G::getViewPath() . DIRECTORY_SEPARATOR . $script;
if (!file_exists($script)) {
throw new Yaf_Exception('View file 【' . $script . '】 not found!');
}
return $script;
}
/**
* 初始化View
*
* @param string $templates_dir
* @param unknown $options
* @return Yaf_View_Interface
*/
public function initView($templates_dir = null, $options = array())
{
if ($this->_view == null) {
if (empty($templates_dir)) {
$templates_dir = Yaf_G::getViewPath();
}
$this->_view = new Yaf_View_Simple($templates_dir, $options);
}
return $this->_view;
}
/**
* Finds a view script from the available directory.
*
* @param string $name
* The base name of the script.
*
* @return void
*/
protected function _script($name)
{
if (preg_match('#\\.\\.[\\\\/]#', $name)) {
throw new Yaf_Exception('Requested scripts may not include parent ' . 'directory traversal ("../", "..\\" notation)');
}
$tpl_dir = Yaf_G::getViewPath();
if ($tpl_dir == '') {
throw new Yaf_Exception('Could not determine the view script path, ' . 'you should call Yaf_View_Simple::setScriptPath to specific it');
}
if (Yaf_G::isAbsolutePath($name) && is_readable($name)) {
return $name;
} elseif (is_readable($tpl_dir . DIRECTORY_SEPARATOR . $name)) {
return $tpl_dir . DIRECTORY_SEPARATOR . $name;
}
throw new Yaf_Exception("Unable to find template " . $tpl_dir . DIRECTORY_SEPARATOR . $name);
}