groups / lib / core / class-groups-pagination.php

class-groups-pagination.php in Groups – Memberships and Access Control 1.1.4, at lib/core/class-groups-pagination.php

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1	<?php
2	/**
3	* class-groups-pagination.php
4	*
5	* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
6	*
7	* This code is released under the GNU General Public License.
8	* See COPYRIGHT.txt and LICENSE.txt.
9	*
10	* This code is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* This header and all notices must be kept intact.
16	*
17	* @author Karim Rahimpur
18	* @package groups
19	* @since groups 1.0.0
20	*/
21
22	/**
23	* Pagination based on WP_List_Table.
24	*/
25	class Groups_Pagination {
26
27	/**
28	*
29	* @param int $total_items how many items there are to display
30	* @param int $total_pages how many pages there are, normally leave set to null
31	* @param int $per_page how many results to show on each page
32	*/
33	function Groups_Pagination($total_items, $total_pages, $per_page) {
34	$this->set_pagination_args(
35	array(
36	'total_items' => $total_items,
37	'total_pages' => $total_pages,
38	'per_page' => $per_page
39	)
40	);
41	}
42
43	/**
44	* Get the current page number
45	* @return int the current page number
46	*/
47	function get_pagenum() {
48	$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
49	if ( !isset( $_REQUEST['paged'] ) ) { // needed with rewritten page added
50	if ( preg_match( "/(\/page\/)(\d+)/", $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], $matches ) ) {
51	$pagenum = absint( $matches[2] );
52	}
53	}
54
55	if( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] )
56	$pagenum = $this->_pagination_args['total_pages'];
57
58	return max( 1, $pagenum );
59	}
60
61	/**
62	* An internal method that sets all the necessary pagination arguments
63	*
64	* @param array $args An associative array with information about the pagination
65	* @access protected
66	*/
67	function set_pagination_args( $args ) {
68	$args = wp_parse_args( $args, array(
69	'total_items' => 0,
70	'total_pages' => 0,
71	'per_page' => 0,
72	) );
73
74	if ( !$args['total_pages'] && $args['per_page'] > 0 )
75	$args['total_pages'] = ceil( $args['total_items'] / $args['per_page'] );
76
77	$this->_pagination_args = $args;
78	}
79
80	/**
81	* Returns or displays the pagination.
82	* @param string $which where it's displayed
83	* @param boolean $echo displays if true, otherwise returns
84	*/
85	function pagination( $which, $echo = false ) {
86
87	if ( empty( $this->_pagination_args ) )
88	return;
89
90	extract( $this->_pagination_args );
91
92	$output = '<span class="displaying-num">' . sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) ) . '</span>';
93
94	$current = $this->get_pagenum();
95
96	$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
97
98	$current_url = remove_query_arg( array( 'hotkeys_highlight_last', 'hotkeys_highlight_first' ), $current_url );
99
100	// needs to remove rewritten added page
101	$current_url = preg_replace( "/\/page\/\d+/", "", $current_url );
102
103	$page_links = array();
104
105	$disable_first = $disable_last = '';
106	if ( $current == 1 )
107	$disable_first = ' disabled';
108	if ( $current == $total_pages )
109	$disable_last = ' disabled';
110
111	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
112	'first-page' . $disable_first,
113	esc_attr__( 'Go to the first page' ),
114	esc_url( remove_query_arg( 'paged', $current_url ) ),
115	'«'
116	);
117
118	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
119	'prev-page' . $disable_first,
120	esc_attr__( 'Go to the previous page' ),
121	esc_url( add_query_arg( 'paged', max( 1, $current-1 ), $current_url ) ),
122	'&lsaquo;'
123	);
124
125	if ( 'bottom' == $which )
126	$html_current_page = $current;
127	else
128	$html_current_page = sprintf( "<input class='current-page' title='%s' type='text' name='%s' value='%s' size='%d' />",
129	esc_attr__( 'Current page' ),
130	esc_attr( 'paged' ),
131	$current,
132	strlen( $total_pages )
133	);
134
135	$html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
136	$page_links[] = '<span class="paging-input">' . sprintf( _x( '%1$s of %2$s', 'paging' ), $html_current_page, $html_total_pages ) . '</span>';
137
138	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
139	'next-page' . $disable_last,
140	esc_attr__( 'Go to the next page' ),
141	esc_url( add_query_arg( 'paged', min( $total_pages, $current+1 ), $current_url ) ),
142	'&rsaquo;'
143	);
144
145	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
146	'last-page' . $disable_last,
147	esc_attr__( 'Go to the last page' ),
148	esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
149	'»'
150	);
151
152	$output .= "\n" . join( "\n", $page_links );
153
154	$page_class = $total_pages < 2 ? ' one-page' : '';
155
156	$this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
157
158	if ( $echo ) {
159	echo $this->_pagination;
160	} else {
161	return $this->_pagination;
162	}
163	}
164	}
165	?>