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<?php
class Controller {
/**
* Find the best view file to include based on file extension and HTTP
* 'Accept' headers.
*/
private function _resolveView($view) {
require_once('Mime.class.php');
require_once('HTTP_Accept.class.php');
// Make a list of candidate views
$glob_string = VIEWPATH.'/pages/'.$view.'.*.php';
$files = glob($glob_string);
// Return false if there were no candidate views.
if (count($files) < 1) return false;
// $prefs is a associative array where the key is the file
// extension, and the value is how much we like that extension.
// Higher numbers are better.
$prefs = array();
// $accept will tell us how much we like a given mime type,
// based on the ACCEPT constant.
$accept = new HTTP_Accept(ACCEPT);
// Loop through the candidate views, and record how much we
// like each.
foreach ($files as $file) {
$ext = preg_replace('@[^.]*\.(.*)\.php$@','$1', $file);
$mimes = Mime::ext2mime($ext);
foreach ($mimes as $mime) {
$quality = $accept->getQuality($mime);
if (isset($final[$ext])) {
$quality = max($final[$ext], $quality);
}
$prefs[$ext] = $quality;
}
}
// Sort $prefs such that the entry with the highest value will
// appear first.
arsort($prefs);
// Return the first entry in $prefs.
foreach ($prefs as $ext => $quality) {
return VIEWPATH."/pages/$view.$ext.php";
}
}
/**
* Show a $view, in the most appropriate format (according to file
* extension and HTTP Accept header). Pass the array $vars to the view.
*/
protected function showView($view, $vars=null) {
global $VARS, $mm;
if ($vars===null) { $vars = array(); }
$VARS = $vars;
$VARS['template'] = $mm->template();
include($this->_resolveView($view));
unset($VARS);
}
// Here be default handlers ////////////////////////////////////////////
public function index($routed, $remainder) {
header('Content-type: text/plain');
echo " == Generic Controller Index == \n\n";
$routed_str = implode('/', $routed);
$remainder_str = implode('/', $remainder);
echo "Full path: $routed_str/$remainder_str\n";
echo "Controller path: $routed_str\n";
echo "Remainder path: $remainder_str\n";
}
public function http404($routed, $remainder) {
$this->showView('http404', array('routed'=>$routed,
'remainder'=>$remainder));
}
}
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