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<?php

/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**

 * Contains the Pager_HtmlWidgets 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 dot alberton at quipo dot it>

 * @copyright  2003-2006 Lorenzo Alberton

 * @license    http://www.debian.org/misc/bsd.license  BSD License (3 Clause)

 * @version    CVS: $Id: HtmlWidgets.php 10 2010-03-05 14:15:42Z jpm $

 * @link       http://pear.php.net/package/Pager

 */

/**

 * Two constants used to guess the path- and file-name of the page

 * when the user doesn't set any other value

 */

class Pager_HtmlWidgets

{

    var $pager = null;

    // {{{ constructor

    function Pager_HtmlWidgets(&$pager)

    {

        $this->pager =& $pager;

    }

    // }}}

    // {{{ getPerPageSelectBox()

    /**

     * Returns a string with a XHTML SELECT menu,

     * useful for letting the user choose how many items per page should be

     * displayed. If parameter useSessions is TRUE, this value is stored in

     * a session var. The string isn't echoed right now so you can use it

     * with template engines.

     *

     * @param integer $start

     * @param integer $end

     * @param integer $step

     * @param boolean $showAllData If true, perPage is set equal to totalItems.

     * @param array   (or string $optionText for BC reasons)

     *                - 'optionText': text to show in each option.

     *                  Use '%d' where you want to see the number of pages selected.

     *                - 'attributes': (html attributes) Tag attributes or

     *                  HTML attributes (id="foo" pairs), will be inserted in the

     *                  <select> tag

     *                - 'checkMaxLimit': if true, Pager checks if $end is bigger

     *                  than $totalItems, and doesn't show the extra select options

     * @return string xhtml select box

     * @access public

     */

    function getPerPageSelectBox($start=5, $end=30, $step=5, $showAllData=false, $extraParams=array())

    {

        // FIXME: needs POST support

        $optionText = '%d';

        $attributes = '';

        $checkMaxLimit = false;

        if (is_string($extraParams)) {

            //old behavior, BC maintained

            $optionText = $extraParams;

        } else {

            if (array_key_exists('optionText', $extraParams)) {

                $optionText = $extraParams['optionText'];

            }

            if (array_key_exists('attributes', $extraParams)) {

                $attributes = $extraParams['attributes'];

            }

            if (array_key_exists('checkMaxLimit', $extraParams)) {

                $checkMaxLimit = $extraParams['checkMaxLimit'];

            }

        }

        if (!strstr($optionText, '%d')) {

            return $this->pager->raiseError(

                $this->pager->errorMessage(ERROR_PAGER_INVALID_PLACEHOLDER),

                ERROR_PAGER_INVALID_PLACEHOLDER

            );

        }

        $start = (int)$start;

        $end   = (int)$end;

        $step  = (int)$step;

        if (!empty($_SESSION[$this->pager->_sessionVar])) {

            $selected = (int)$_SESSION[$this->pager->_sessionVar];

        } else {

            $selected = $this->pager->_perPage;

        }

        if ($checkMaxLimit && $this->pager->_totalItems > 0 && $this->pager->_totalItems < $end) {

            $end = $this->pager->_totalItems;

        }

        $tmp = '<select name="'.$this->pager->_sessionVar.'"';

        if (!empty($attributes)) {

            $tmp .= ' '.$attributes;

        }

        $tmp .= '>';

        $last = $start;

        for ($i=$start; $i<=$end; $i+=$step) {

            $last = $i;

            $tmp .= '<option value="'.$i.'"';

            if ($i == $selected) {

                $tmp .= ' selected="selected"';

            }

            $tmp .= '>'.sprintf($optionText, $i).'</option>';

        }

        if ($showAllData && $last != $this->pager->_totalItems) {

            $tmp .= '<option value="'.$this->pager->_totalItems.'"';

            if ($this->pager->_totalItems == $selected) {

                $tmp .= ' selected="selected"';

            }

            $tmp .= '>';

            if (empty($this->pager->_showAllText)) {

                $tmp .= str_replace('%d', $this->pager->_totalItems, $optionText);

            } else {

                $tmp .= $this->pager->_showAllText;

            }

            $tmp .= '</option>';

        }

        $tmp .= '</select>';

        return $tmp;

    }

    // }}}

    // {{{ getPageSelectBox()

    /**

     * Returns a string with a XHTML SELECT menu with the page numbers,

     * useful as an alternative to the links

     *

     * @param array   - 'optionText': text to show in each option.

     *                  Use '%d' where you want to see the number of pages selected.

     *                - 'autoSubmit': if TRUE, add some js code to submit the

     *                  form on the onChange event

     * @param string    $extraAttributes (html attributes) Tag attributes or

     *                  HTML attributes (id="foo" pairs), will be inserted in the

     *                  <select> tag

     * @return string xhtml select box

     * @access public

     */

    function getPageSelectBox($params = array(), $extraAttributes = '')

    {

        $optionText = '%d';

        if (array_key_exists('optionText', $params)) {

            $optionText = $params['optionText'];

        }

        if (!strstr($optionText, '%d')) {

            return $this->pager->raiseError(

                $this->pager->errorMessage(ERROR_PAGER_INVALID_PLACEHOLDER),

                ERROR_PAGER_INVALID_PLACEHOLDER

            );

        }

        $tmp = '<select name="'.$this->pager->_urlVar.'"';

        if (!empty($extraAttributes)) {

            $tmp .= ' '.$extraAttributes;

        }

        if (!empty($params['autoSubmit'])) {

            if ($this->pager->_httpMethod == 'GET') {

                $selector = '\' + '.'this.options[this.selectedIndex].value + \'';

                if ($this->pager->_append) {

                    $href = '?' . $this->pager->_http_build_query_wrapper($this->pager->_linkData);

                    $href = htmlentities($this->pager->_url). preg_replace(

                        '/(&|&|\?)('.$this->pager->_urlVar.'=)(\d+)/',

                        '\\1\\2'.$selector,

                        htmlentities($href)

                    );

                } else {

                    $href = htmlentities($this->pager->_url . str_replace('%d', $selector, $this->pager->_fileName));

                }

                $tmp .= ' onchange="document.location.href=\''

                     . $href .'\''

                     . '"';

            } elseif ($this->pager->_httpMethod == 'POST') {

                $tmp .= " onchange='"

                     . $this->pager->_generateFormOnClick($this->pager->_url, $this->pager->_linkData)

                     . "'";

                $tmp = preg_replace(

                    '/(input\.name = \"'.$this->pager->_urlVar.'\"; input\.value =) \"(\d+)\";/',

                    '\\1 this.options[this.selectedIndex].value;',

                    $tmp

                );

            }

        }

        $tmp .= '>';

        $start = 1;

        $end = $this->pager->numPages();

        $selected = $this->pager->getCurrentPageID();

        for ($i=$start; $i<=$end; $i++) {

            $tmp .= '<option value="'.$i.'"';

            if ($i == $selected) {

                $tmp .= ' selected="selected"';

            }

            $tmp .= '>'.sprintf($optionText, $i).'</option>';

        }

        $tmp .= '</select>';

        return $tmp;

    }

    // }}}

}

?>