FishEye: file osCommerce/branches/hpdl/oscommerce/includes/classes/navigation

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hpdl	1	1	<?php
hpdl	1	2	/*
mattice	151	3	$Id: navigation_history.php 1498 2007-03-29 14:04:50Z hpdl $
hpdl	1	4
		5	osCommerce, Open Source E-Commerce Solutions
		6	http://www.oscommerce.com
		7
hpdl	368	8	Copyright (c) 2005 osCommerce
hpdl	1	9
hpdl	1498	10	This program is free software; you can redistribute it and/or modify
		11	it under the terms of the GNU General Public License v2 (1991)
		12	as published by the Free Software Foundation.
hpdl	1	13	*/
hpdl	1	14
hpdl	368	15	class osC_NavigationHistory {
hpdl	1	16
hpdl	368	17	/* Private variables */
hpdl	1	18
hpdl	368	19	var $_data = array(),
hpdl	368	20	$_snapshot = array();
hpdl	1	21
hpdl	368	22	/* Class constructor */
hpdl	1	23
hpdl	368	24	function osC_NavigationHistory($add_current_page = false) {
		25	if (isset($_SESSION['osC_NavigationHistory_data']) && is_array($_SESSION['osC_NavigationHistory_data']) && (empty($_SESSION['osC_NavigationHistory_data']) === false)) {
		26	$this->_data =& $_SESSION['osC_NavigationHistory_data'];
hpdl	1	27	}
hpdl	1	28
hpdl	368	29	if (isset($_SESSION['osC_NavigationHistory_snapshot']) && is_array($_SESSION['osC_NavigationHistory_snapshot']) && (empty($_SESSION['osC_NavigationHistory_snapshot']) === false)) {
		30	$this->_snapshot =& $_SESSION['osC_NavigationHistory_snapshot'];
		31	}
hpdl	1	32
hpdl	368	33	if ($add_current_page === true) {
hpdl	368	34	$this->addCurrentPage();
hpdl	1	35	}
hpdl	368	36	}
hpdl	1	37
hpdl	368	38	/* Public methods */
		39
		40	function addCurrentPage() {
		41	global $request_type, $cPath;
		42
hpdl	1	43	$set = 'true';
hpdl	368	44
hpdl	368	45	for ($i=0, $n=sizeof($this->_data); $i<$n; $i++) {
hpdl	784	46	if ($this->_data[$i]['page'] == basename($_SERVER['SCRIPT_FILENAME'])) {
hpdl	1	47	if (isset($cPath)) {
hpdl	368	48	if (!isset($this->_data[$i]['get']['cPath'])) {
hpdl	1	49	continue;
hpdl	1	50	} else {
hpdl	368	51	if ($this->_data[$i]['get']['cPath'] == $cPath) {
hpdl	368	52	array_splice($this->_data, ($i+1));
hpdl	1	53	$set = 'false';
		54	break;
		55	} else {
hpdl	368	56	$old_cPath = explode('_', $this->_data[$i]['get']['cPath']);
hpdl	1	57	$new_cPath = explode('_', $cPath);
		58
		59	for ($j=0, $n2=sizeof($old_cPath); $j<$n2; $j++) {
		60	if ($old_cPath[$j] != $new_cPath[$j]) {
hpdl	368	61	array_splice($this->_data, ($i));
hpdl	1	62	$set = 'true';
		63	break 2;
		64	}
		65	}
		66	}
		67	}
		68	} else {
hpdl	368	69	array_splice($this->_data, $i);
hpdl	1	70	$set = 'true';
		71	break;
		72	}
		73	}
		74	}
		75
		76	if ($set == 'true') {
hpdl	784	77	$this->_data[] = array('page' => basename($_SERVER['SCRIPT_FILENAME']),
hpdl	368	78	'mode' => $request_type,
		79	'get' => $_GET,
		80	'post' => $_POST);
		81
		82	if (isset($_SESSION['osC_NavigationHistory_data']) === false) {
		83	$_SESSION['osC_NavigationHistory_data'] = $this->_data;
		84	}
hpdl	1	85	}
		86	}
		87
hpdl	368	88	function removeCurrentPage() {
		89	$last_entry_position = sizeof($this->_data) - 1;
		90
hpdl	784	91	if ($this->_data[$last_entry_position]['page'] == basename($_SERVER['SCRIPT_FILENAME'])) {
hpdl	368	92	unset($this->_data[$last_entry_position]);
		93
		94	if (sizeof($this->_data) > 0) {
		95	if (isset($_SESSION['osC_NavigationHistory_data']) === false) {
		96	$_SESSION['osC_NavigationHistory_data'] = $this->_data;
		97	}
		98	} else {
		99	$this->resetPath();
		100	}
hpdl	1	101	}
hpdl	368	102	}
hpdl	1	103
hpdl	368	104	function hasPath($back = 1) {
		105	if ( (is_numeric($back) === false) \|\| (is_numeric($back) && ($back < 1)) ) {
		106	$back = 1;
hpdl	1	107	}
hpdl	368	108
hpdl	368	109	return isset($this->_data[sizeof($this->_data) - $back]);
hpdl	1	110	}
hpdl	1	111
hpdl	368	112	function getPathURL($back = 1, $exclude = array()) {
		113	if ( (is_numeric($back) === false) \|\| (is_numeric($back) && ($back < 1)) ) {
		114	$back = 1;
hpdl	1	115	}
hpdl	1	116
hpdl	368	117	$back = sizeof($this->_data) - $back;
hpdl	368	118
hpdl	754	119	return osc_href_link($this->_data[$back]['page'], $this->_parseParameters($this->_data[$back]['get'], $exclude), $this->_data[$back]['mode']);
hpdl	368	120	}
		121
		122	function setSnapshot($page = '') {
hpdl	1	123	global $request_type;
hpdl	1	124
hpdl	368	125	if (is_array($page)) {
		126	$this->_snapshot = array('page' => $page['page'],
		127	'mode' => $page['mode'],
		128	'get' => $page['get'],
		129	'post' => $page['post']);
		130	} else {
hpdl	784	131	$this->_snapshot = array('page' => basename($_SERVER['SCRIPT_FILENAME']),
hpdl	368	132	'mode' => $request_type,
		133	'get' => $_GET,
		134	'post' => $_POST);
hpdl	1	135	}
hpdl	1	136
hpdl	368	137	if (isset($_SESSION['osC_NavigationHistory_snapshot']) === false) {
		138	$_SESSION['osC_NavigationHistory_snapshot'] = $this->_snapshot;
		139	}
		140	}
		141
		142	function hasSnapshot() {
		143	return !empty($this->_snapshot);
		144	}
		145
		146	function getSnapshot($key) {
		147	if (isset($this->_snapshot[$key])) {
		148	return $this->_snapshot[$key];
		149	}
		150	}
		151
		152	function getSnapshotURL($auto_mode = false) {
		153	if ($this->hasSnapshot()) {
hpdl	754	154	$target = osc_href_link($this->_snapshot['page'], $this->_parseParameters($this->_snapshot['get']), ($auto_mode === true) ? 'AUTO' : $this->_snapshot['mode']);
hpdl	1	155	} else {
hpdl	754	156	$target = osc_href_link(FILENAME_DEFAULT, null, ($auto_mode === true) ? 'AUTO' : $this->_snapshot['mode']);
hpdl	1	157	}
hpdl	368	158
hpdl	368	159	return $target;
hpdl	1	160	}
hpdl	1	161
hpdl	368	162	function redirectToSnapshot() {
		163	$target = $this->getSnapshotURL(true);
		164
		165	$this->resetSnapshot();
		166
hpdl	757	167	osc_redirect($target);
hpdl	1	168	}
hpdl	1	169
hpdl	368	170	function resetPath() {
		171	$this->_data = array();
		172
		173	if (isset($_SESSION['osC_NavigationHistory_data'])) {
		174	unset($_SESSION['osC_NavigationHistory_data']);
		175	}
hpdl	1	176	}
hpdl	1	177
hpdl	368	178	function resetSnapshot() {
		179	$this->_snapshot = array();
		180
		181	if (isset($_SESSION['osC_NavigationHistory_snapshot'])) {
		182	unset($_SESSION['osC_NavigationHistory_snapshot']);
		183	}
hpdl	1	184	}
hpdl	1	185
hpdl	368	186	function reset() {
		187	$this->resetPath();
		188	$this->resetSnapshot();
		189	}
		190
		191	function _parseParameters($array, $additional_exclude = array()) {
hpdl	1	192	global $osC_Session;
hpdl	1	193
hpdl	368	194	$exclude = array('x', 'y', $osC_Session->getName());
		195
		196	if (is_array($additional_exclude) && (empty($additional_exclude) === false)) {
		197	$exclude = array_merge($exclude, $additional_exclude);
		198	}
		199
		200	$string = '';
		201
		202	if (is_array($array) && (empty($array) === false)) {
		203	foreach ($array as $key => $value) {
		204	if (in_array($key, $exclude) === false) {
		205	$string .= $key . '=' . $value . '&';
hpdl	1	206	}
hpdl	1	207	}
hpdl	368	208
hpdl	368	209	$string = substr($string, 0, -1);
hpdl	1	210	}
hpdl	1	211
hpdl	368	212	return $string;
hpdl	1	213	}
		214	}
		215	?>

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