Archive for February, 2010

I previously wrote about how to insert a span into a link, but after testing this method quickly failed when coupled with the Views module. When a Page view is created and assigned to a node url, everything is fine and dandy. The issues arise when you want a link to use an alias. Luckily, I’ve devised a really simple work around:

use the same code to generate your menu:

<?php if (!empty($primary_links)): ?>
<?php print theme('links', $primary_links, array('id' => 'nav')); ?>
<?php endif; ?>

this calls the links() function inside of includes/theme.inc, which triggers the l() function in the includes/common.inc to write the primary links menu. We can’t override the l() entirely because other code uses it, so we’ll copy the code from theme.inc and override the l() function with a site template specific one. Here’s my code:

theme.inc

function mytheme_links($links, $attributes = array('class' => 'links')) {
 global $language;
 $output = '';
 $options = array(
 'class' => '',
 'html' => FALSE,
 );

 if (count($links) > 0) {
 $output = '<ul' . drupal_attributes($attributes) .'>';

 $num_links = count($links);
 $i = 1;

 foreach ($links as $key => $link) {
 $class = $key;

 $links['attributes']['title'] = $link['title'];
 // Add first, last and active classes to the list of links to help out themers.
 if ($i == 1) {
 $class .= ' first';
 }
 if ($i == $num_links) {
 $class .= ' signup last';
 $links['attributes']['class'] .= $class;
 }
 if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
 && (empty($link['language']) || $link['language']->language == $language->language)) {
 $class .= ' active';
 }
 $output .= '<li' . drupal_attributes(array('class' => $class)) .'>';

 if (isset($link['href'])) {
 // Pass in $link as $options, they share the same keys.

//here's my call to the overridden function
 $output .= mytheme_l($link['title'], $link['href'], $links);
 }
 else if (!empty($link['title'])) {
 // Some links are actually not links, but we wrap these in <span> for adding title and class attributes
 if (empty($link['html'])) {
 $link['title'] = check_plain($link['title']);
 }
 $span_attributes = '';
 if (isset($link['attributes'])) {
 $span_attributes = drupal_attributes($link['attributes']);
 }
 $output .= '<span'. $span_attributes .'>'. $link['title'] .'</span>';
 }

 $i++;
 $output .= "</li>\n";
 }

 $output .= '</ul>';
 }

 return $output;
}

and now the l() function in common.inc gets changed to mytheme_l():

function mytheme_l($text, $path, $options = array()) {
 global $language;

 // Merge in defaults.
 $options += array(
 'attributes' => array(),
 'html' => FALSE,
 );

 // Append active class.
 if (($path == $_GET['q'] || ($path == '<front>' && drupal_is_front_page())) &&
 (empty($options['language']) || $options['language']->language == $language->language)) {
 if (isset($options['attributes']['class'])) {
 $options['attributes']['class'] .= ' active';
 }
 else {
 $options['attributes']['class'] = 'active';
 }
 }

 // Remove all HTML and PHP tags from a tooltip. For best performance, we act only
 // if a quick strpos() pre-check gave a suspicion (because strip_tags() is expensive).
 if (isset($options['attributes']['title']) && strpos($options['attributes']['title'], '<') !== FALSE) {
 $options['attributes']['title'] = strip_tags($options['attributes']['title']);
 }
 // Inject a span inside the anchor tag for the purposes of this theme - NOTE - May have to remove check_plain() around
 // the $text variable
 return '<a href="'. check_url(url($path, $options)) .'"'. drupal_attributes($options['attributes']) .'><span>'. ($options['html'] ? $text : check_plain($text)) .'</span></a>';
}

You can see that all I did was include the span element inside the anchor tag using simple php string concatenation. Until I can find a better solution, this does the trick. Don’t ask me about benchmarking, though…

I’m building a custom template in Drupal for the farm, and needed a way to spit out a custom implementation of primary_links navigation unordered list. I needed something like this:

<ul id="nav">
  <li class="first"><a href="link-goes-here" title="wow, how descriptive"><span>link 1 copy</span></a></li>
  <li><a href="link-goes-here2" title="round 2, FIGHT!"><span>link 2 copy</span></a></li>
</ul>

The spans inside the anchor tag are valid xhtml strict, and necessary for the nested/floating backgrounds. The l() function in drupal does a fine job of spitting out valid code, but I also haven’t found anything to delimit the angle brackets in the span element.
Here’s how I solved the problem.

First, I added a preprocess function in template.php and copied this chunk of code from root/includes/theme.inc:

function theme_links($links, $attributes = array('class' => 'links')) {
 global $language;
 $output = '';

 if (count($links) > 0) {
 $output = '<ul'. drupal_attributes($attributes) .'>';

 $num_links = count($links);
 $i = 1;

 foreach ($links as $key => $link) {
 $class = $key;

 // Add first, last and active classes to the list of links to help out themers.
 if ($i == 1) {
 $class .= ' first';
 }
 if ($i == $num_links) {
 $class .= ' last';
 }
 if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
 && (empty($link['language']) || $link['language']->language == $language->language)) {
 $class .= ' active';
 }
 $output .= '<li'. drupal_attributes(array('class' => $class)) .'>';

 if (isset($link['href'])) {
 // Pass in $link as $options, they share the same keys.
 $output .= l($link['title'], $link['href'], $link);
 }
 else if (!empty($link['title'])) {
 // Some links are actually not links, but we wrap these in <span> for adding title and class attributes
 if (empty($link['html'])) {
 $link['title'] = check_plain($link['title']);
 }
 $span_attributes = '';
 if (isset($link['attributes'])) {
 $span_attributes = drupal_attributes($link['attributes']);
 }
 $output .= '<span'. $span_attributes .'>'. $link['title'] .'</span>';
 }

 $i++;
 $output .= "</li>\n";
 }

 $output .= '</ul>';
 }

 return $output;
}

I then modified the code as follows:

function stoneyacresfarm_links($links, $attributes = array('class' => 'links')) {
 global $language;
 $output = '';

 if (count($links) > 0) {
 $output = '<ul'. drupal_attributes($attributes) .'>';

 $num_links = count($links);
 $i = 1;

 foreach ($links as $key => $link) {
 $class = $key;

 // Add first, last and active classes to the list of links to help out themers.
 if ($i == 1) {
 $class .= ' first';
 }
 if ($i == $num_links) {
 $class .= ' last';
 }
 if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
 && (empty($link['language']) || $link['language']->language == $language->language)) {
 $class .= ' active';
 }
 $output .= '<li'. drupal_attributes(array('class' => $class)) .'>';

 if (isset($link['href'])) {
 // Pass in $link as $options, they share the same keys.
 // here are the modifications
 $temphref = drupal_lookup_path('alias', $link['href'], '');
 $output .= '<a href="' . $temphref . '" title="' . $link['title'] . '"> <span>' . $link['title'] . '</span></a>';
 }
 else if (!empty($link['title'])) {
 // Some links are actually not links, but we wrap these in <span> for adding title and class attributes
 if (empty($link['html'])) {
 $link['title'] = check_plain($link['title']);
 }
 $span_attributes = '';
 if (isset($link['attributes'])) {
 $span_attributes = drupal_attributes($link['attributes']);
 }
 $output .= '<span'. $span_attributes .'>'. $link['title'] .'</span>';
 }

 $i++;
 $output .= "</li>\n";
 }

 $output .= '</ul>';
 }

 return $output;
}

Lines 29 & 30 are the brilliant bits. I scoured api.drupal.org till I found the  drupal_lookup_path function. Follow the link for the arguments that can be passed in. I specified that I wanted an alias, gave it the path ( links['href'] ), and passed in a blank character for language.

This is all rendered out in my page-front.tpl.php and page.tpl.php files in the standard fashion:

<?php if (!empty($primary_links)): ?>
  <?php print theme('links', $primary_links, array('id' => 'nav')); ?>
<?php endif; ?>

I hope this helps!