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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Contains the Pager class
*
* PHP versions 4 and 5
*
* LICENSE: Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category HTML
* @package Pager
* @author Lorenzo Alberton <l.alberton@quipo.it>
* @author Richard Heyes <richard@phpguru.org>
* @copyright 2003-2008 Lorenzo Alberton, Richard Heyes
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @version CVS: $Id$
* @link http://pear.php.net/package/Pager
*/
/**
* Pager - Wrapper class for [Sliding|Jumping]-window Pager
* Usage examples can be found in the PEAR manual
*
* @category HTML
* @package Pager
* @author Lorenzo Alberton <l.alberton@quipo.it>
* @author Richard Heyes <richard@phpguru.org>
* @copyright 2003-2008 Lorenzo Alberton, Richard Heyes
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @link http://pear.php.net/package/Pager
*/
class Pager
{
// {{{ Pager()
/**
* Constructor
*
* -------------------------------------------------------------------------
* VALID options are (default values are set some lines before):
* - mode (string): "Jumping" or "Sliding" -window - It determines
* pager behaviour. See the manual for more details
* - totalItems (int): # of items to page.
* - perPage (int): # of items per page.
* - delta (int): # of page #s to show before and after the current
* one
* - linkClass (string): name of CSS class used for link styling.
* - append (bool): if true pageID is appended as GET value to the
* URL - if false it is embedded in the URL
* according to "fileName" specs
* - httpMethod (string): Specifies the HTTP method to use. Valid values
* are 'GET' or 'POST'
* according to "fileName" specs
* - importQuery (bool): if true (default behaviour), variables and
* values are imported from the submitted data
* (query string) and used in the generated links
* otherwise they're ignored completely
* - path (string): complete path to the page (without the page name)
* - fileName (string): name of the page, with a %d if append=true
* - urlVar (string): name of pageNumber URL var, for example "pageID"
* - altPrev (string): alt text to display for prev page, on prev link.
* - altNext (string): alt text to display for next page, on next link.
* - altPage (string): alt text to display before the page number.
* - prevImg (string): sth (it can be text such as "<< PREV" or an
* <img/> as well...) to display instead of "<<".
* - nextImg (string): same as prevImg, used for NEXT link, instead of
* the default value, which is ">>".
* - separator (string): what to use to separate numbers (can be an
* <img/>, a comma, an hyphen, or whatever.
* - spacesBeforeSeparator
* (int): number of spaces before the separator.
* - firstPagePre (string):
* string used before first page number (can be an
* <img/>, a "{", an empty string, or whatever.
* - firstPageText (string):
* string used in place of first page number
* - firstPagePost (string):
* string used after first page number (can be an
* <img/>, a "}", an empty string, or whatever.
* - lastPagePre (string):
* similar to firstPagePre.
* - lastPageText (string):
* similar to firstPageText.
* - lastPagePost (string):
* similar to firstPagePost.
* - spacesAfterSeparator
* (int): number of spaces after the separator.
* - firstLinkTitle (string):
* string used as title in <link rel="first"> tag
* - lastLinkTitle (string):
* string used as title in <link rel="last"> tag
* - prevLinkTitle (string):
* string used as title in <link rel="prev"> tag
* - nextLinkTitle (string):
* string used as title in <link rel="next"> tag
* - curPageLinkClassName
* (string): name of CSS class used for current page link.
* - clearIfVoid(bool): if there's only one page, don't display pager.
* - extraVars (array): additional URL vars to be added to the querystring
* - excludeVars (array): URL vars to be excluded in the querystring
* - itemData (array): array of items to page.
* - useSessions (bool): if true, number of items to display per page is
* stored in the $_SESSION[$_sessionVar] var.
* - closeSession (bool): if true, the session is closed just after R/W.
* - sessionVar (string): name of the session var for perPage value.
* A value != from default can be useful when
* using more than one Pager istance in the page.
* - pearErrorMode (constant):
* PEAR_ERROR mode for raiseError().
* Default is PEAR_ERROR_RETURN.
* -------------------------------------------------------------------------
* REQUIRED options are:
* - fileName IF append==false (default is true)
* - itemData OR totalItems (if itemData is set, totalItems is overwritten)
* -------------------------------------------------------------------------
*
* @param mixed $options Associative array of option names and their values
*
* @access public
*/
function __construct($options = array())
{
//this check evaluates to true on 5.0.0RC-dev,
//so i'm using another one, for now...
//if (version_compare(phpversion(), '5.0.0') == -1) {
if (get_class($this) == 'pager') { //php4 lowers class names
// assign factoried method to this for PHP 4
eval('$this = Pager::factory($options);');
} else { //php5 is case sensitive
$msg = 'Pager constructor is deprecated.'
.' You must use the "Pager::factory($params)" method'
.' instead of "new Pager($params)"';
trigger_error($msg, E_USER_ERROR);
}
}
// }}}
// {{{ factory()
/**
* Return a pager based on $mode and $options
*
* @param array $options Optional parameters for the storage class
*
* @return object Storage object
* @static
* @access public
*/
static function &factory($options = array())
{
$mode = (isset($options['mode']) ? ucfirst($options['mode']) : 'Jumping');
$classname = 'Pager_' . $mode;
$classfile = 'Pager' . DIRECTORY_SEPARATOR . $mode . '.php';
// Attempt to include a custom version of the named class, but don't treat
// a failure as fatal. The caller may have already included their own
// version of the named class.
if (!class_exists($classname)) {
include_once $classfile;
}
// If the class exists, return a new instance of it.
if (class_exists($classname)) {
$pager = new $classname($options);
return $pager;
}
$null = null;
return $null;
}
// }}}
}
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