+++ /dev/null
-<?php
-/***************************************************************************
- * Copyright (C) 2003-2008 Polytechnique.org *
- * http://opensource.polytechnique.org/ *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., *
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
- **************************************************************************/
-
-/** A Wizard Page is a page of a wizard. It is a self-contained step which
- * handles both the creation and initialisation of the step (by using the
- * Wizard global state, if needed) and the processing of the action the
- * user made on it.
- */
-interface PlWizardPage
-{
- /** Build a new instance of the class
- * associated with the given wizard master.
- */
- public function __construct(PlWizard &$wiz);
-
- /** Return the name of the templace describing the page.
- */
- public function template();
-
- /** Prepare the page by assigning to it any useful value.
- */
- public function prepare(PlatalPage &$page, $id);
-
- /** Process information resulting of the application of the page.
- * This function must return a clue indicating the next page to show.
- * This clue can be either a page id, a page number or a navigation
- * id (PlWizard::FIRST_PAGE, PlWizard::NEXT_PAGE, PlWizard::CURRENT_PAGE
- * PlWizard::PREVIOUS_PAGE, PlWizard::LAST_PAGE).
- */
- public function process();
-}
-
-/** A PlWizard is a set of pages through which the user can navigate,
- * his action on a page determining which the next one will be.
- *
- * A Wizard can either a stateless wizard (which is only a set of
- * independent pages through which the user can easily navigate) or
- * stateful (a suite of steps where each step gives clue for the next
- * one).
- */
-class PlWizard
-{
- const FIRST_PAGE = 'bt_first';
- const NEXT_PAGE = 'bt_next';
- const CURRENT_PAGE = 'bt_current';
- const PREVIOUS_PAGE = 'bt_previous';
- const LAST_PAGE = 'bt_last';
-
- protected $name;
- protected $layout;
- protected $stateless;
- protected $ajax;
-
- protected $pages;
- protected $titles;
- protected $lookup;
- protected $inv_lookup;
-
- public function __construct($name, $layout, $stateless = false, $ajax = true)
- {
- $this->name = 'wiz_' . $name;
- $this->layout = $layout;
- $this->stateless = $stateless;
- $this->pages = array();
- $this->lookup = array();
- $this->titles = array();
- $this->ajax = $ajax;
- if (!isset($_SESSION[$this->name])) {
- $_SESSION[$this->name] = array();
- $_SESSION[$this->name . '_page'] = null;
- $_SESSION[$this->name . '_stack'] = array();
- }
- }
-
- public function addPage($class, $title, $id = null)
- {
- if ($id == null) {
- $id = count($this->pages);
- }
- $this->lookup[$id] = count($this->pages);
- $this->inv_lookup[] = $id;
- $this->pages[] = $class;
- $this->titles[] = $title;
- }
-
- public function set($varname, $value)
- {
- $_SESSION[$this->name][$varname] = $value;
- }
-
- public function get($varname, $default = null)
- {
- return isset($_SESSION[$this->name][$varname]) ?
- $_SESSION[$this->name][$varname] : $default;
- }
-
- public function v($varname, $default = "")
- {
- return $this->get($varname, $default);
- }
-
- public function i($varname, $default = 0)
- {
- return (int)$this->get($varname, $default);
- }
-
- public function clear($varname = null)
- {
- if (is_null($varname)) {
- $_SESSION[$this->name] = array();
- } else {
- unset($_SESSION[$this->name][$varname]);
- }
- $_SESSION[$this->name . '_page'] = null;
- }
-
- private function getPage($id)
- {
- $page = $this->pages[$id];
- return new $page($this);
- }
-
- public function apply(PlatalPage &$smarty, $baseurl, $pgid = null, $mode = 'normal')
- {
- if ($this->stateless && (isset($this->lookup[$pgid]) || isset($this->pages[$pgid]))) {
- $curpage = is_numeric($pgid) ? $pgid : $this->lookup[$pgid];
- } else if ($this->stateless && is_null($pgid)) {
- $curpage = 0;
- } else {
- $curpage = $_SESSION[$this->name . '_page'];
- }
- $oldpage = $curpage;
-
- // Process the previous page
- if (Post::has('valid_page')) {
- $page = $this->getPage(Post::i('valid_page'));
- $curpage = Post::i('valid_page');
- $next = $page->process();
- $last = $curpage;
- switch ($next) {
- case PlWizard::FIRST_PAGE:
- $curpage = 0;
- break;
- case PlWizard::PREVIOUS_PAGE:
- if (!$this->stateless && count($_SESSION[$this->name . '_stack'])) {
- $curpage = array_pop($_SESSION[$this->name . '_stack']);
- } elseif ($curpage && $this->stateless) {
- $curpage--;
- } else {
- $curpage = 0;
- }
- break;
- case PlWizard::NEXT_PAGE:
- if ($curpage < count($this->pages) - 1) {
- $curpage++;
- }
- break;
- case PlWizard::LAST_PAGE:
- $curpage = count($this->pages) - 1;
- break;
- case PlWizard::CURRENT_PAGE: break; // don't change the page
- default:
- $curpage = is_numeric($next) ? $next : $this->lookup[$next];
- break;
- }
- if (!$this->stateless) {
- array_push($_SESSION[$this->name . '_stack'], $last);
- }
- }
- if (is_null($curpage)) {
- $curpage = 0;
- }
-
- // Prepare the page
- $_SESSION[$this->name . '_page'] = $curpage;
- if ($curpage != $oldpage) {
- pl_redirect($baseurl . '/' . $this->inv_lookup[$curpage]);
- } else if (!isset($page)) {
- $page = $this->getPage($curpage);
- }
- if ($mode == 'ajax') {
- header('Content-Type: text/html; charset=utf-8');
- $smarty->changeTpl($page->template(), NO_SKIN);
- } else {
- $smarty->changeTpl($this->layout);
- }
- $smarty->assign('pages', $this->titles);
- $smarty->assign('current', $curpage);
- $smarty->assign('lookup', $this->inv_lookup);
- $smarty->assign('stateless', $this->stateless);
- $smarty->assign('wiz_baseurl', $baseurl);
- $smarty->assign('wiz_ajax', $this->ajax);
- $smarty->assign('tab_width', (int)(99 / count($this->pages)));
- $smarty->assign('wiz_page', $page->template());
- $smarty->assign('xorg_no_errors', true);
- $page->prepare($smarty, isset($this->inv_lookup[$curpage]) ? $this->inv_lookup[$curpage] : $curpage);
- }
-}
-
-// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
-?>
projects / platal.git / blobdiff