web/wp-content/themes/twentyeleven/inc/widgets.php
changeset 194 32102edaa81b
child 204 09a1c134465b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-content/themes/twentyeleven/inc/widgets.php	Mon Nov 19 18:26:13 2012 +0100
@@ -0,0 +1,164 @@
+<?php
+/**
+ * Makes a custom Widget for displaying Aside, Link, Status, and Quote Posts available with Twenty Eleven
+ *
+ * Learn more: http://codex.wordpress.org/Widgets_API#Developing_Widgets
+ *
+ * @package WordPress
+ * @subpackage Twenty_Eleven
+ * @since Twenty Eleven 1.0
+ */
+class Twenty_Eleven_Ephemera_Widget extends WP_Widget {
+
+	/**
+	 * Constructor
+	 *
+	 * @return void
+	 **/
+	function Twenty_Eleven_Ephemera_Widget() {
+		$widget_ops = array( 'classname' => 'widget_twentyeleven_ephemera', 'description' => __( 'Use this widget to list your recent Aside, Status, Quote, and Link posts', 'twentyeleven' ) );
+		$this->WP_Widget( 'widget_twentyeleven_ephemera', __( 'Twenty Eleven Ephemera', 'twentyeleven' ), $widget_ops );
+		$this->alt_option_name = 'widget_twentyeleven_ephemera';
+
+		add_action( 'save_post', array(&$this, 'flush_widget_cache' ) );
+		add_action( 'deleted_post', array(&$this, 'flush_widget_cache' ) );
+		add_action( 'switch_theme', array(&$this, 'flush_widget_cache' ) );
+	}
+
+	/**
+	 * Outputs the HTML for this widget.
+	 *
+	 * @param array An array of standard parameters for widgets in this theme
+	 * @param array An array of settings for this widget instance
+	 * @return void Echoes it's output
+	 **/
+	function widget( $args, $instance ) {
+		$cache = wp_cache_get( 'widget_twentyeleven_ephemera', 'widget' );
+
+		if ( !is_array( $cache ) )
+			$cache = array();
+
+		if ( ! isset( $args['widget_id'] ) )
+			$args['widget_id'] = null;
+
+		if ( isset( $cache[$args['widget_id']] ) ) {
+			echo $cache[$args['widget_id']];
+			return;
+		}
+
+		ob_start();
+		extract( $args, EXTR_SKIP );
+
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Ephemera', 'twentyeleven' ) : $instance['title'], $instance, $this->id_base);
+
+		if ( ! isset( $instance['number'] ) )
+			$instance['number'] = '10';
+
+		if ( ! $number = absint( $instance['number'] ) )
+ 			$number = 10;
+
+		$ephemera_args = array(
+			'order' => 'DESC',
+			'posts_per_page' => $number,
+			'no_found_rows' => true,
+			'post_status' => 'publish',
+			'post__not_in' => get_option( 'sticky_posts' ),
+			'tax_query' => array(
+				array(
+					'taxonomy' => 'post_format',
+					'terms' => array( 'post-format-aside', 'post-format-link', 'post-format-status', 'post-format-quote' ),
+					'field' => 'slug',
+					'operator' => 'IN',
+				),
+			),
+		);
+		$ephemera = new WP_Query( $ephemera_args );
+
+		if ( $ephemera->have_posts() ) :
+			echo $before_widget;
+			echo $before_title;
+			echo $title; // Can set this with a widget option, or omit altogether
+			echo $after_title;
+			?>
+			<ol>
+			<?php while ( $ephemera->have_posts() ) : $ephemera->the_post(); ?>
+
+				<?php if ( 'link' != get_post_format() ) : ?>
+
+				<li class="widget-entry-title">
+					<a href="<?php echo esc_url( get_permalink() ); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a>
+					<span class="comments-link">
+						<?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' ) ); ?>
+					</span>
+				</li>
+
+				<?php else : ?>
+
+				<li class="widget-entry-title">
+					<?php
+						// Grab first link from the post content. If none found, use the post permalink as fallback.
+						$link_url = twentyeleven_url_grabber();
+
+						if ( empty( $link_url ) )
+							$link_url = get_permalink();
+					?>
+					<a href="<?php echo esc_url( $link_url ); ?>" title="<?php printf( esc_attr__( 'Link to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?>&nbsp;<span>&rarr;</span></a>
+					<span class="comments-link">
+						<?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' ) ); ?>
+					</span>
+				</li>
+
+				<?php endif; ?>
+
+			<?php endwhile; ?>
+			</ol>
+			<?php
+
+			echo $after_widget;
+
+			// Reset the post globals as this query will have stomped on it
+			wp_reset_postdata();
+
+		// end check for ephemeral posts
+		endif;
+
+		$cache[$args['widget_id']] = ob_get_flush();
+		wp_cache_set( 'widget_twentyeleven_ephemera', $cache, 'widget' );
+	}
+
+	/**
+	 * Deals with the settings when they are saved by the admin. Here is
+	 * where any validation should be dealt with.
+	 **/
+	function update( $new_instance, $old_instance ) {
+		$instance = $old_instance;
+		$instance['title'] = strip_tags( $new_instance['title'] );
+		$instance['number'] = (int) $new_instance['number'];
+		$this->flush_widget_cache();
+
+		$alloptions = wp_cache_get( 'alloptions', 'options' );
+		if ( isset( $alloptions['widget_twentyeleven_ephemera'] ) )
+			delete_option( 'widget_twentyeleven_ephemera' );
+
+		return $instance;
+	}
+
+	function flush_widget_cache() {
+		wp_cache_delete( 'widget_twentyeleven_ephemera', 'widget' );
+	}
+
+	/**
+	 * Displays the form for this widget on the Widgets page of the WP Admin area.
+	 **/
+	function form( $instance ) {
+		$title = isset( $instance['title']) ? esc_attr( $instance['title'] ) : '';
+		$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 10;
+?>
+			<p><label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( 'Title:', 'twentyeleven' ); ?></label>
+			<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>
+
+			<p><label for="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>"><?php _e( 'Number of posts to show:', 'twentyeleven' ); ?></label>
+			<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>
+		<?php
+	}
+}
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