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<title>[12039] trunk/wp-includes: Add wp-post-image CSS class to post images.</title>
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<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/12039">12039</a></dd>
<dt>Author</dt> <dd>markjaquith</dd>
<dt>Date</dt> <dd>2009-10-15 14:27:04 +0000 (Thu, 15 Oct 2009)</dd>
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<h3>Log Message</h3>
<pre>Add wp-post-image CSS class to post images. see <a href="http://trac.wordpress.org/ticket/10928">#10928</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesdefaultfiltersphp">trunk/wp-includes/default-filters.php</a></li>
<li><a href="#trunkwpincludesmediaphp">trunk/wp-includes/media.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkwpincludesdefaultfiltersphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/default-filters.php (12038 => 12039)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/default-filters.php 2009-10-15 14:20:35 UTC (rev 12038)
+++ trunk/wp-includes/default-filters.php 2009-10-15 14:27:04 UTC (rev 12039)
</span><span class="lines">@@ -215,6 +215,9 @@
</span><span class="cx"> add_action('save_post', '_save_post_hook', 5, 2);
</span><span class="cx"> add_action('transition_post_status', '_transition_post_status', 5, 3);
</span><span class="cx"> add_action('comment_form', 'wp_comment_form_unfiltered_html_nonce');
</span><ins>+// Post Image CSS class filtering
+add_action( 'begin_fetch_post_image_html', '_wp_post_image_class_filter_add' );
+add_action( 'end_fetch_post_image_html', '_wp_post_image_class_filter_remove' );
</ins><span class="cx"> // Redirect Old Slugs
</span><span class="cx"> add_action('template_redirect', 'wp_old_slug_redirect');
</span><span class="cx"> add_action('edit_post', 'wp_check_for_changed_slugs');
</span></span></pre></div>
<a id="trunkwpincludesmediaphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/media.php (12038 => 12039)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/media.php 2009-10-15 14:20:35 UTC (rev 12038)
+++ trunk/wp-includes/media.php 2009-10-15 14:27:04 UTC (rev 12039)
</span><span class="lines">@@ -556,6 +556,41 @@
</span><span class="cx"> return $html;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+/**
+ * Adds a 'wp-post-image' class to post image thumbnails
+ * Uses the begin_fetch_post_image_html and end_fetch_post_image_html action hooks to
+ * dynamically add/remove itself so as to only filter post image thumbnails
+ *
+ * @author Mark Jaquith
+ * @since 2.9.0
+ * @param array $attr Attributes including src, class, alt, title
+ * @return array
+ */
+function _wp_post_image_class_filter( $attr ) {
+ $attr['class'] .= ' wp-post-image';
+ return $attr;
+}
+
+/**
+ * Adds _wp_post_image_class_filter to the wp_get_attachment_image_attributes filter
+ *
+ * @author Mark Jaquith
+ * @since 2.9.0
+ */
+function _wp_post_image_class_filter_add( $attr ) {
+ add_filter( 'wp_get_attachment_image_attributes', '_wp_post_image_class_filter' );
+}
+
+/**
+ * Removes _wp_post_image_class_filter from the wp_get_attachment_image_attributes filter
+ *
+ * @author Mark Jaquith
+ * @since 2.9.0
+ */
+function _wp_post_image_class_filter_remove( $attr ) {
+ remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_image_class_filter' );
+}
+
</ins><span class="cx"> add_shortcode('wp_caption', 'img_caption_shortcode');
</span><span class="cx"> add_shortcode('caption', 'img_caption_shortcode');
</span><span class="cx">
</span></span></pre>
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