Wordpress 3.5.2
[autoinstalls/wordpress.git] / wp-content / themes / twentyeleven / inc / widgets.php
1 <?php
2 /**
3  * Makes a custom Widget for displaying Aside, Link, Status, and Quote Posts available with Twenty Eleven
4  *
5  * Learn more: http://codex.wordpress.org/Widgets_API#Developing_Widgets
6  *
7  * @package WordPress
8  * @subpackage Twenty_Eleven
9  * @since Twenty Eleven 1.0
10  */
11 class Twenty_Eleven_Ephemera_Widget extends WP_Widget {
12
13         /**
14          * Constructor
15          *
16          * @return void
17          **/
18         function Twenty_Eleven_Ephemera_Widget() {
19                 $widget_ops = array( 'classname' => 'widget_twentyeleven_ephemera', 'description' => __( 'Use this widget to list your recent Aside, Status, Quote, and Link posts', 'twentyeleven' ) );
20                 $this->WP_Widget( 'widget_twentyeleven_ephemera', __( 'Twenty Eleven Ephemera', 'twentyeleven' ), $widget_ops );
21                 $this->alt_option_name = 'widget_twentyeleven_ephemera';
22
23                 add_action( 'save_post', array(&$this, 'flush_widget_cache' ) );
24                 add_action( 'deleted_post', array(&$this, 'flush_widget_cache' ) );
25                 add_action( 'switch_theme', array(&$this, 'flush_widget_cache' ) );
26         }
27
28         /**
29          * Outputs the HTML for this widget.
30          *
31          * @param array An array of standard parameters for widgets in this theme
32          * @param array An array of settings for this widget instance
33          * @return void Echoes it's output
34          **/
35         function widget( $args, $instance ) {
36                 $cache = wp_cache_get( 'widget_twentyeleven_ephemera', 'widget' );
37
38                 if ( !is_array( $cache ) )
39                         $cache = array();
40
41                 if ( ! isset( $args['widget_id'] ) )
42                         $args['widget_id'] = null;
43
44                 if ( isset( $cache[$args['widget_id']] ) ) {
45                         echo $cache[$args['widget_id']];
46                         return;
47                 }
48
49                 ob_start();
50                 extract( $args, EXTR_SKIP );
51
52                 $title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Ephemera', 'twentyeleven' ) : $instance['title'], $instance, $this->id_base);
53
54                 if ( ! isset( $instance['number'] ) )
55                         $instance['number'] = '10';
56
57                 if ( ! $number = absint( $instance['number'] ) )
58                         $number = 10;
59
60                 $ephemera_args = array(
61                         'order' => 'DESC',
62                         'posts_per_page' => $number,
63                         'no_found_rows' => true,
64                         'post_status' => 'publish',
65                         'post__not_in' => get_option( 'sticky_posts' ),
66                         'tax_query' => array(
67                                 array(
68                                         'taxonomy' => 'post_format',
69                                         'terms' => array( 'post-format-aside', 'post-format-link', 'post-format-status', 'post-format-quote' ),
70                                         'field' => 'slug',
71                                         'operator' => 'IN',
72                                 ),
73                         ),
74                 );
75                 $ephemera = new WP_Query( $ephemera_args );
76
77                 if ( $ephemera->have_posts() ) :
78                         echo $before_widget;
79                         echo $before_title;
80                         echo $title; // Can set this with a widget option, or omit altogether
81                         echo $after_title;
82                         ?>
83                         <ol>
84                         <?php while ( $ephemera->have_posts() ) : $ephemera->the_post(); ?>
85
86                                 <?php if ( 'link' != get_post_format() ) : ?>
87
88                                 <li class="widget-entry-title">
89                                         <a href="<?php echo esc_url( get_permalink() ); ?>" title="<?php echo esc_attr( sprintf( __( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ) ); ?>" rel="bookmark"><?php the_title(); ?></a>
90                                         <span class="comments-link">
91                                                 <?php comments_popup_link( __( '0 <span class="reply">comments &rarr;</span>', 'twentyeleven' ), __( '1 <span class="reply">comment &rarr;</span>', 'twentyeleven' ), __( '% <span class="reply">comments &rarr;</span>', 'twentyeleven' ) ); ?>
92                                         </span>
93                                 </li>
94
95                                 <?php else : ?>
96
97                                 <li class="widget-entry-title">
98                                         <?php
99                                                 // Grab first link from the post content. If none found, use the post permalink as fallback.
100                                                 $link_url = twentyeleven_url_grabber();
101
102                                                 if ( empty( $link_url ) )
103                                                         $link_url = get_permalink();
104                                         ?>
105                                         <a href="<?php echo esc_url( $link_url ); ?>" title="<?php echo esc_attr( sprintf( __( 'Link to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ) ); ?>" rel="bookmark"><?php the_title(); ?>&nbsp;<span>&rarr;</span></a>
106                                         <span class="comments-link">
107                                                 <?php comments_popup_link( __( '0 <span class="reply">comments &rarr;</span>', 'twentyeleven' ), __( '1 <span class="reply">comment &rarr;</span>', 'twentyeleven' ), __( '% <span class="reply">comments &rarr;</span>', 'twentyeleven' ) ); ?>
108                                         </span>
109                                 </li>
110
111                                 <?php endif; ?>
112
113                         <?php endwhile; ?>
114                         </ol>
115                         <?php
116
117                         echo $after_widget;
118
119                         // Reset the post globals as this query will have stomped on it
120                         wp_reset_postdata();
121
122                 // end check for ephemeral posts
123                 endif;
124
125                 $cache[$args['widget_id']] = ob_get_flush();
126                 wp_cache_set( 'widget_twentyeleven_ephemera', $cache, 'widget' );
127         }
128
129         /**
130          * Deals with the settings when they are saved by the admin. Here is
131          * where any validation should be dealt with.
132          **/
133         function update( $new_instance, $old_instance ) {
134                 $instance = $old_instance;
135                 $instance['title'] = strip_tags( $new_instance['title'] );
136                 $instance['number'] = (int) $new_instance['number'];
137                 $this->flush_widget_cache();
138
139                 $alloptions = wp_cache_get( 'alloptions', 'options' );
140                 if ( isset( $alloptions['widget_twentyeleven_ephemera'] ) )
141                         delete_option( 'widget_twentyeleven_ephemera' );
142
143                 return $instance;
144         }
145
146         function flush_widget_cache() {
147                 wp_cache_delete( 'widget_twentyeleven_ephemera', 'widget' );
148         }
149
150         /**
151          * Displays the form for this widget on the Widgets page of the WP Admin area.
152          **/
153         function form( $instance ) {
154                 $title = isset( $instance['title']) ? esc_attr( $instance['title'] ) : '';
155                 $number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 10;
156 ?>
157                         <p><label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( 'Title:', 'twentyeleven' ); ?></label>
158                         <input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /></p>
159
160                         <p><label for="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>"><?php _e( 'Number of posts to show:', 'twentyeleven' ); ?></label>
161                         <input id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" type="text" value="<?php echo esc_attr( $number ); ?>" size="3" /></p>
162                 <?php
163         }
164 }