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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Contains the Pager class
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*
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* PHP versions 4 and 5
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*
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* LICENSE: Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTML
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* @package Pager
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* @author Lorenzo Alberton <l dot alberton at quipo dot it>
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* @author Richard Heyes <richard@phpguru.org>
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* @copyright 2003-2006 Lorenzo Alberton, Richard Heyes
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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* @version CVS: $Id: Pager.php,v 1.2 2007-11-06 10:54:04 jp_milcent Exp $
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* @link http://pear.php.net/package/Pager
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*/
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/**
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* Pager - Wrapper class for [Sliding|Jumping]-window Pager
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* Usage examples can be found in the PEAR manual
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*
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* @category HTML
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* @package Pager
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* @author Lorenzo Alberton <l dot alberton at quipo dot it>
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* @author Richard Heyes <richard@phpguru.org>,
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* @copyright 2003-2005 Lorenzo Alberton, Richard Heyes
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @link http://pear.php.net/package/Pager
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*/
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class Pager
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{
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// {{{ Pager()
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/**
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* Constructor
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*
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* -------------------------------------------------------------------------
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* VALID options are (default values are set some lines before):
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* - mode (string): "Jumping" or "Sliding" -window - It determines
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* pager behaviour. See the manual for more details
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* - totalItems (int): # of items to page.
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* - perPage (int): # of items per page.
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* - delta (int): # of page #s to show before and after the current
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* one
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* - linkClass (string): name of CSS class used for link styling.
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* - append (bool): if true pageID is appended as GET value to the
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* URL - if false it is embedded in the URL
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* according to "fileName" specs
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* - httpMethod (string): Specifies the HTTP method to use. Valid values
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* are 'GET' or 'POST'
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* according to "fileName" specs
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* - importQuery (bool): if true (default behaviour), variables and
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* values are imported from the submitted data
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* (query string) and used in the generated links
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* otherwise they're ignored completely
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* - path (string): complete path to the page (without the page name)
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* - fileName (string): name of the page, with a %d if append=true
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* - urlVar (string): name of pageNumber URL var, for example "pageID"
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* - altPrev (string): alt text to display for prev page, on prev link.
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* - altNext (string): alt text to display for next page, on next link.
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* - altPage (string): alt text to display before the page number.
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* - prevImg (string): sth (it can be text such as "<< PREV" or an
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* <img/> as well...) to display instead of "<<".
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* - nextImg (string): same as prevImg, used for NEXT link, instead of
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* the default value, which is ">>".
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* - separator (string): what to use to separate numbers (can be an
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* <img/>, a comma, an hyphen, or whatever.
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* - spacesBeforeSeparator
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* (int): number of spaces before the separator.
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* - firstPagePre (string):
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* string used before first page number (can be an
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* <img/>, a "{", an empty string, or whatever.
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* - firstPageText (string):
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* string used in place of first page number
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* - firstPagePost (string):
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* string used after first page number (can be an
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* <img/>, a "}", an empty string, or whatever.
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* - lastPagePre (string):
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* similar to firstPagePre.
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* - lastPageText (string):
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* similar to firstPageText.
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* - lastPagePost (string):
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* similar to firstPagePost.
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* - spacesAfterSeparator
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* (int): number of spaces after the separator.
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* - firstLinkTitle (string):
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* string used as title in <link rel="first"> tag
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* - lastLinkTitle (string):
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* string used as title in <link rel="last"> tag
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* - prevLinkTitle (string):
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* string used as title in <link rel="prev"> tag
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* - nextLinkTitle (string):
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* string used as title in <link rel="next"> tag
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* - curPageLinkClassName
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* (string): name of CSS class used for current page link.
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* - clearIfVoid(bool): if there's only one page, don't display pager.
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* - extraVars (array): additional URL vars to be added to the querystring
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* - excludeVars (array): URL vars to be excluded in the querystring
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* - itemData (array): array of items to page.
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* - useSessions (bool): if true, number of items to display per page is
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* stored in the $_SESSION[$_sessionVar] var.
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* - closeSession (bool): if true, the session is closed just after R/W.
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* - sessionVar (string): name of the session var for perPage value.
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* A value != from default can be useful when
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* using more than one Pager istance in the page.
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* - pearErrorMode (constant):
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* PEAR_ERROR mode for raiseError().
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* Default is PEAR_ERROR_RETURN.
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* -------------------------------------------------------------------------
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* REQUIRED options are:
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* - fileName IF append==false (default is true)
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* - itemData OR totalItems (if itemData is set, totalItems is overwritten)
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* -------------------------------------------------------------------------
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*
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* @param mixed $options An associative array of option names and
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* their values.
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* @access public
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*/
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function Pager($options = array())
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{
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//this check evaluates to true on 5.0.0RC-dev,
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//so i'm using another one, for now...
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//if (version_compare(phpversion(), '5.0.0') == -1) {
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if (get_class($this) == 'pager') { //php4 lowers class names
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// assign factoried method to this for PHP 4
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eval('$this = Pager::factory($options);');
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} else { //php5 is case sensitive
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$msg = 'Pager constructor is deprecated.'
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.' You must use the "Pager::factory($params)" method'
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.' instead of "new Pager($params)"';
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trigger_error($msg, E_USER_ERROR);
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}
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}
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// }}}
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// {{{ factory()
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/**
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* Return a pager based on $mode and $options
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*
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* @param array $options Optional parameters for the storage class
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* @return object Object Storage object
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* @static
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* @access public
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*/
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static function &factory($options = array())
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{
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$mode = (isset($options['mode']) ? ucfirst($options['mode']) : 'Jumping');
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$classname = 'Pager_' . $mode;
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$classfile = 'Pager' . DIRECTORY_SEPARATOR . $mode . '.php';
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// Attempt to include a custom version of the named class, but don't treat
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// a failure as fatal. The caller may have already included their own
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// version of the named class.
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if (!class_exists($classname)) {
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include_once $classfile;
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}
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// If the class exists, return a new instance of it.
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if (class_exists($classname)) {
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$pager =& new $classname($options);
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return $pager;
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}
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$null = null;
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return $null;
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}
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// }}}
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}
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?>
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