path: root/frontend/classes/wizard_api.php

<?php
class wizard_step {
	var $configuration, $module, $step, $title, $next, $data=array();
	function __construct(&$c, $step, $noload=false) {
		$this->configuration=&$c;
		$this->module=new module($c->module);
		$this->step=$step;
		if (!$noload) {
			$file=$this->module->dir."/step$step.php";
			if (!is_readable($file)) {
				throw_exception("$mod step $step doesn't exist!");
			}
			require($file);
		}
		$this->title=$this->module->steps[$step-1];
		$this->next=isset($next)?$next:($this->step == $this->module->numsteps?null:$step+1);
	}
	public function output($rw=true) {
		global $conf;
		echo "<div class=\"wizard\" id=\"step$this->step\">";
		if ($rw)
			echo '<form action="'.url('config/'.$this->configuration->id).'" method="post"><a style="float: right" href="'.url('config/'.$this->configuration->id.'/status').'">Status</a>';
		if ($rw) {
			echo '<h3>Step '.$this->step.': '.$this->title."</h3>\n";
			$scale=$conf['progressbar_width']/$this->module->numsteps;
			echo '<img src="'.url('images/full.gif').'" style="border-left: 1px solid black; border-top: 1px solid black; border-bottom: 1px solid black; width: '.$this->step*$scale.'px; height: 15px" /><img src="'.url('images/empty.gif').'" style="border-right: 1px solid black; border-top: 1px solid black; border-bottom: 1px solid black; width: '.(count($this->module->steps)-$this->step)*$scale.'px; height: 15px" /><br/>'."\n";
			$this->echo_buttons();
		}
		foreach ($this->data as $obj) {
			// print warning if rw is false?
			if (!$obj->status) {
				echo print_warning('Please complete this field.');
			}
			$obj->output($rw);
		}
		if ($rw) {
			echo '<br/>';
			$this->echo_buttons();
		}
		echo '</div>'."\n";
	}
	public function process() {
		global $request;
		if (!isset($request['wizard_submit'][$this->step])) {
			return $this->step;
		}
		$result=$this->next;
		foreach ($this->data as $obj) {
			if (!$obj->status=$obj->process()) {
				$result=$this->step;
			}
		}
		return $result;
	}
	public function verify() {
		foreach ($this->data as $obj) {
			if (!($obj->status=$obj->verify())) {
				return $obj->status;
			}
		}
		return true;
	}
	private function text($text) {
		$this->data[]=new wizard_text($this->configuration, $text);
	}
	private function text_input($optname, $htmlname, $label) {
		$this->data[]=new wizard_text_input($this->configuration, $optname, $htmlname, $label);
	}
	private function select($optname, $htmlname, $label, $options) {
		$this->data[]=new wizard_select($this->configuration, $optname, $htmlname, $label, $options);
	}
	private function radio($optname, $htmlname, $label, $options) {
		$this->data[]=new wizard_radio($this->configuration, $optname, $htmlname, $label, $options);
	}
	private function checkbox_array($optname, $htmlname, $label, $array, $delim=' ') {
		$this->data[]=new wizard_checkbox_array($this->configuration, $optname, $htmlname, $label, $array, $delim=' ');
	}
	private function layered_checkbox_array($optname, $htmlname, $label, &$array, $delim=' ', $metadata) {
		$this->data[]=new wizard_layered_checkbox_array($this->configuration, $optname, $htmlname, $label, $array, $delim, $metadata);
	}
	private function query($q) {
		return $GLOBALS['S']['pdo']->query($q);
	}
	private function get_opt($opt) {
		return $this->configuration->get_opt($opt);
	}
	private function echo_buttons() {
		echo ($this->step > 1?'<input type="button" onclick="window.location=\''.url('config/'.$this->configuration->id.'/'.($this->step-1)).'\'" value="Back" /> ':'&nbsp;').'<input style="float: right" type="submit" name="wizard_submit['.$this->step.']" value="'.($this->step == $this->module->numsteps?'Finish':'Next').'" /><br/>';
	}
}
abstract class wizard {
	public $status=true, $configuration;
	function __construct(&$c) {
		$this->configuration=&$c;
	}
	abstract public function output($rw=true);
	abstract public function process();
	abstract public function verify();
	abstract public function clear();
	protected function get_opt($name) {
		return $this->configuration->get_opt($name);
	}
	protected function set_opt($name, $val) {
		debug('wizard', "$name=$val");
		if (substr($name, 0, 1) == ':') {
			$this->configuration->$name=$val;
			$this->configuration->write();
		} else {
			$this->configuration->set_opt($name, $val);
		}
	}
	protected function opt_is($name, $val) {
		return $this->configuration->opt_is($name, $val);
	}
	protected function delete_opt($name) {
		return $this->configuration->delete_opt($name);
	}
}
class wizard_text extends wizard {
	protected $text;
	function __construct(&$c, $text) {
		parent::__construct($c);
		$this->text=$text;
	}
	public function output($rw=true) {
		echo $this->text;
	}
	public function process() {
		return true;
	}
	public function verify() {
		return true;
	}
	public function clear() {}
}
abstract class wizard_input extends wizard {
	protected $optname, $htmlname, $label;
	function __construct(&$c, $optname, $htmlname, $label) {
		parent::__construct($c);
		$this->optname=$optname;
		$this->htmlname=htmlentities($htmlname);
		$this->label=htmlentities($label);
	}
	public function output($rw=true) {
		echo "$this->label: ";
	}
	public function process() {
		global $request;
		if (isset($request[$this->optname])) {
			self::set_opt($this->optname, $request[$this->optname]);
			return true;
		} else {
			return false;
		}
	}
	public function verify() {
		return $this->get_opt($this->optname)!==null;
	}
	public function clear() {
		return $this->delete_opt($this->optname);
	}
}
class wizard_text_input extends wizard_input {
	public function output($rw=true) {
		parent::output($rw);
		echo $rw?"<input name=\"$this->htmlname\"".(($val=$this->get_opt($this->optname)) === null?'':'value="'.htmlentities($val).'"').' />':htmlentities($this->get_opt($this->optname));
		echo "<br/>\n";
	}
}
class wizard_select extends wizard_input {
	private $options;
	function __construct(&$c, $optname, $htmlname, $label, $options) {
		parent::__construct($c, $optname, $htmlname, $label);
		$this->options=$options;
	}
	public function output($rw=true) {
		parent::output($rw);
		if ($rw) {
			echo '<select name="'.$this->htmlname.'">'."\n";
			$i=0;
		}
		foreach ($this->options as $val => $label) {
			if ($rw)
				echo "\t".'<option value="'.$i++.'"'.($this->opt_is($this->optname, $val)?' selected="selected"':'').'>'.htmlentities($label).'</option>'."\n";
			elseif ($this->opt_is($this->optname, $val))
				echo htmlentities($label);
		}
		if ($rw)
			echo '</select>';
		echo "<br/>\n";
	}
	public function process() {
		global $request;
		$vals=array_keys($this->options);
		if (isset($request[$this->htmlname]) && is_numeric($request[$this->htmlname]) && isset($vals[$request[$this->htmlname]])) {
			$this->set_opt($this->optname, $vals[$request[$this->htmlname]]);
			return true;
		} else return false;
	}
	public function verify() {
		if (($val=$this->get_opt($this->optname)) === null) return null;
		return isset($this->options[$val]);
	}
}
class wizard_radio extends wizard_select {
	public function output($rw=true) {
		if (!$rw) return parent::output($rw);
		echo "$this->label:<br/>\n";
		$i=0;
		foreach ($this->options as $val => $label) {
			echo "\t<input type=\"radio\" id=\"$this->htmlname-$i\" name=\"$this->htmlname\" value=\"".$i."\"".($this->opt_is($this->optname, $val)?' checked="checked"':'')."\" /><label for=\"$this->htmlname-$i\">".htmlentities($label)."</label><br/>\n";
			$i++;
		}
	}
}
class wizard_checkbox_array extends wizard_input {
	protected $array;
	function __construct(&$c, $optname, $htmlname, $label, $array, $delim=' ') {
		parent::__construct($c, $optname, $htmlname, $label);
		$this->array=$array;
		$this->delim=$delim;
	}
	public function output($rw=true) {
		if (strlen($this->label))
			echo "<b>$this->label:</b><br/>\n";
		$i=0;
		foreach ($this->array as $val => $label) {
			$label=htmlentities($label);
			if ($rw)
				echo "\t<input type=\"checkbox\" id=\"$this->htmlname-$i\" name=\"$this->htmlname[$i]\"".($this->opt_has($this->optname, $val, $this->delim)?' checked="checked"':'')." /><label for=\"$this->htmlname-$i\">$label</label><br/>\n";
			elseif ($this->opt_has($this->optname, $val, $this->delim))
				echo "$label<br/>\n";
			$i++;
		}
	}
	public function process() {
		global $request;
		$val=array();
		if (isset($request[$this->htmlname])) {
			$vals=array_keys($this->array);
			foreach ($request[$this->htmlname] as $i => $null) {
				$val[]=$vals[$i];
			}
		}
		$this->set_opt($this->optname, implode($this->delim, $val));
		return true;
	}
	public function verify() {
		if (($vals=$this->get_opt($this->optname)) === null) return null;
		if (strlen($vals) == 0) return true;
		$vals=explode($this->delim, $vals);
		foreach ($vals as $i => $val) {
			if (isset($this->array[$val])) {
				unset($vals[$i]);
			}
		}
		return count($vals) == 0;
	}
	private static $opt_cache;
	protected function opt_has($name, $val, $delim=' ') {
		if (!isset(self::$opt_cache[$name][$delim])) {
			self::$opt_cache[$name][$delim]=explode($delim, $this->get_opt($name));
		}
		return in_array($val, self::$opt_cache[$name][$delim]);
	}
}
class wizard_layered_checkbox_array extends wizard_checkbox_array {
	private $depth=0, $path_delims=array('', '/', '-');
	function __construct(&$c, $optname, $htmlname, $label, &$array, $delim=' ', $metadata) {
		parent::__construct($c, $optname, $htmlname, $label, &$array, $delim);
		$this->metadata=$metadata;
		for ($i=current(&$array); is_array($i); $i=current($i)) $this->depth++;
		global $S;
		if (!in_array('wlca', $S['scripts'])) {
			$S['scripts'][]='wlca';
		}
	}
	public function output($rw=true) {
		if ($this->label) {
			echo '<h4>'.htmlentities($this->label).'</h4>';
		}
		if ($rw)
			$this->r_output($this->array);
		else
			$this->r_ro_output($this->array);
	}
	public function process() {
		$this->set_opt($this->optname, implode($this->delim, $this->r_process($this->array)));
		return true;
	}
	public function verify() {
		if (($vals=$this->get_opt($this->optname)) === null) return null;
		if (strlen($vals) == 0) return true;
		$vals=explode($this->delim, $vals);
		$r=$this->r_verify($vals, $this->array);
		debug('wlca', 'got results: '.implode(' ',$r));
		return count($r) == 0;
	}
	private function r_output(&$array, $depth=0, $path=null, $name=null) {
		static $uid=0, $ucid=0;
		$conf=&$this->metadata[0];
		if ($depth == 0) {
			$search=$autosize=0;
			for ($i=1; $i<count($this->metadata); $i++) {
				$m=&$this->metadata[$i];
				if (isset($m['tag'])) {
					$autosize++;
				}
				if (isset($m['search'])) {
					$search++;
				}
			}
			if ($search) {
				if (!isset($conf['id'])) {
					$conf['id']=self::b36($uid++);
				}
				echo 'Search: <input id="'.$conf['id'].'-q" onkeyup="wlca_search(this.value, document.getElementById(\''.$conf['id'].'\'), 0, '.$this->depth.')" /> <a href="javascript:q=document.getElementById(\''.$conf['id'].'-q\'); q.value=\'\'; q.onkeyup()">Clear</a> <a href="javascript:wlca_show_checked(document.getElementById(\''.$conf['id'].'\'), 0, '.$this->depth.'); undefined">Show checked</a><br/>'."\n";
			}
			echo '<div class="wlca'.(isset($conf['autosize'])?' autosize" style="font-size: '.pow(1.15, $autosize)*100.0.'%':'').'" id="'.$conf['id'].'">'."\n";
			foreach ($array as $name => &$val) {
				$this->r_output($val, $depth+1, $name, $name);
				$uid++;
			}
			echo '<h3 style="display: none">No results</h3></div>';
			echo "<script type=\"text/javascript\">\n<!--\nif (wlca_show_checked(document.getElementById('{$conf['id']}'), 0, $this->depth) == 0) wlca_search(document.getElementById('{$conf['id']}-q').value, document.getElementById('{$conf['id']}'), 0, $this->depth);\n-->\n</script>\n";
		} else {
			$meta=$this->metadata[$depth];
			if (isset($meta['tag'])) {
				echo '<'.$meta['tag'].' class="wlcae'.(isset($meta['search'])?' wlcas':'').(isset($meta['collapsed'])?' wlca'.($meta['collapsed']?'c':'C'):'').(isset($meta['class'])?' '.$meta['class']:'').'" id="'.self::b36($uid).'"'.($depth > 1 && isset($this->metadata[$depth-1]['collapsed']) && $this->metadata[$depth-1]['collapsed'] && false?' style="display: none"':'').'>';
				if (isset($meta['collapsed']) && $depth < $this->depth) {
					echo '<a href="javascript:wlcat(\''.self::b36($uid).'\')">&plusmn;</a>';
				}
			}
			if (isset($meta['checkbox'])) {
				$enc=self::b36($ucid++);
				echo '<input type="checkbox" id="-'.$enc.'" name="'.$this->htmlname.'['.$enc.']"'.($this->opt_has($this->optname, $this->format_label($array, $meta['checkbox'], $path, $name), $this->delim)?' checked="checked"':'').' /><label for="-'.$enc.'">'.$this->format_label($array, $meta['label'], $path, $name).'</label>'."\n";
			} elseif (isset($meta['label'])) {
				echo '<span class="wlcal">'.$this->format_label($array, $meta['label'], $path, $name)."</span>\n";
			}
			if ($depth < $this->depth) {
				foreach ($array as $name => &$val) {
					$uid++;
					$this->r_output($val, $depth+1, $path.$meta['delim'].$name, $name);
				}
			}
			if (isset($meta['tag'])) {
				echo '</'.$meta['tag'].">\n";
			}
		}
	}
	private function r_process(&$array, $depth=0, $path=null, $name=null) {
		static $ucid=0, $r;
		if ($depth == 0) {
			$r=array();
			foreach ($array as $name => &$val) {
				$this->r_process($val, $depth+1, $name, $name);
			}
			return $r;
		} else { 
			$meta=$this->metadata[$depth];
			if (isset($meta['checkbox'])) {
				global $request;
				if (isset($request[$this->htmlname][self::b36($ucid)])) {
					$r[]=$this->format_label($array, $meta['checkbox'], $path, $name);
				}
				$ucid++;
			}
			if ($depth < $this->depth) {
				foreach ($array as $name => &$val)
					$this->r_process($val, $depth+1, $path.$meta['delim'].$name, $name);
			}
		}
	}
	private function &r_verify(&$vals, &$array, $depth=0, $path=null, $name=null) {
		if ($depth == 0) {
			foreach($array as $name => &$val) {
				$this->r_verify($vals, $val, $depth+1, $name, $name);
			}
			return $vals;
		} else {
			$meta=$this->metadata[$depth];
			if (isset($meta['checkbox'])) {
				$label=$this->format_label($array, $meta['checkbox'], $path, $name);
				if (($i=array_search($label, $vals)) !== false) {
					unset($vals[$i]);
				}
			}
			if ($depth < $this->depth) {
				foreach ($array as $name => &$val)
					$this->r_verify($vals, $val, $depth+1, $path.$meta['delim'].$name, $name);
			}
			return $vals;
		}
	}
	private function r_ro_output(&$array, $depth=0, $path=null, $name=null) {
		if ($depth == 0) {
			foreach ($array as $name => &$val) {
				$this->r_ro_output($val, $depth+1, $name, $name);
			}
		} else {
			$meta=$this->metadata[$depth];
			if (isset($meta['checkbox'])) {
				$val=$this->format_label($array, $meta['checkbox'], $path, $name);
				if ($this->opt_has($this->optname, $val, $this->delim)) {
					echo $this->format_label($array, $meta['label'], $path, $name)."<br/>\n";
				}
			}
			if ($depth < $this->depth) {
				foreach ($array as $name => &$val)
					$this->r_ro_output($val, $depth+1, $path.$meta['delim'].$name, $name);
			}
		}
	}
	private function format_label(&$array, $label='%p', $path, $name) {
		$arg=$array;
		$label=str_replace(array('%p', '%n'), array($path, $name), $label);
		if (strpos($label, '$')) {
			while (is_array(current($arg))) {
				$arg=current($arg);
			}
			$label=eval("extract(\$arg, EXTR_PREFIX_INVALID, 'var_');\nreturn <<<_XQ1\n$label\n_XQ1;\n");
		}
		return htmlentities($label);
	}
	private static function b36($n) {
		return base_convert($n, 10, 36);
	}
}
?>