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<?php
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/**
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* @file
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* Plugin to provide an argument handler for a Taxonomy term.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t("Taxonomy term (multiple): ID"),
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// Keyword to use for %substitution.
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'keyword' => 'term',
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'description' => t('Creates a group of taxonomy terms from a list of tids separated by a comma or a plus sign. In general the first term of the list will be used for panes.'),
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'context' => 'ctools_terms_context',
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'default' => array('breadcrumb' => TRUE),
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'settings form' => 'ctools_terms_settings_form',
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'placeholder form' => array(
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'#type' => 'textfield',
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'#description' => t('Enter a term ID or a list of term IDs separated by a + or a ,'),
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),
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'breadcrumb' => 'ctools_terms_breadcrumb',
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);
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/**
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* Discover if this argument gives us the term we crave.
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*/
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function ctools_terms_context($arg = NULL, $conf = NULL, $empty = FALSE) {
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// If unset it wants a generic, unfilled context.
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if ($empty) {
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return ctools_context_create_empty('terms');
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}
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$terms = ctools_break_phrase($arg);
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if (empty($terms->value) || !empty($terms->invalid_input)) {
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return FALSE;
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}
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$context = ctools_context_create('terms', $terms);
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$context->original_argument = $arg;
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return $context;
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}
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/**
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* Settings form for the argument.
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*/
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function ctools_terms_settings_form(&$form, &$form_state, $conf) {
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$form['settings']['breadcrumb'] = array(
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'#title' => t('Inject hierarchy of first term into breadcrumb trail'),
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'#type' => 'checkbox',
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'#default_value' => !empty($conf['breadcrumb']),
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'#description' => t('If checked, taxonomy term parents will appear in the breadcrumb trail.'),
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);
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}
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/**
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* Inject the breadcrumb trail if necessary.
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*/
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function ctools_terms_breadcrumb($conf, $context) {
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if (empty($conf['breadcrumb'])) {
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return;
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}
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$current = new stdClass();
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$current->tid = $context->tids[0];
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$breadcrumb = array();
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while ($parents = taxonomy_get_parents($current->tid)) {
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$current = array_shift($parents);
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$breadcrumb[] = l($current->name, 'taxonomy/term/' . $current->tid);
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}
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$breadcrumb = array_merge(drupal_get_breadcrumb(), array_reverse($breadcrumb));
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drupal_set_breadcrumb($breadcrumb);
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}
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