Forward port of changes made to node context.
[project/panels.git] / contexts / node.inc
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1<?php
2// $Id$
3
4
5/**
6 * @file contexts/node.inc
7 *
8 * Plugin to provide a node context
9 */
10
11function panels_node_panels_contexts() {
12 $args['node'] = array(
13 'title' => t("Node"),
14 'description' => t('A node object.'),
15 'context' => 'panels_context_create_node',
16 'settings form' => 'panels_context_node_settings_form',
17 'settings form validate' => 'panels_context_node_settings_form_validate',
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18 'settings form submit' => 'panels_context_node_settings_form_submit',
19'keyword' => 'node',
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20 'context name' => 'node',
21 );
22 return $args;
23}
24
25/**
26 * It's important to remember that $conf is optional here, because contexts
27 * are not always created from the UI.
28 */
29function panels_context_create_node($empty, $data = NULL, $conf = FALSE) {
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30 $types = array('node');
31 if (!empty($conf['types'])) {
32 foreach ($conf['types'] as $type) {
33 if ($type) {
34 $types[] = 'node-' . $type;
35 }
36 }
37 }
38 $context = new panels_context($types);
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39 $context->plugin = 'node';
40
41 if ($empty) {
42 return $context;
43 }
44
45 if ($conf) {
d9ddf0ea 46 $nid = is_array($data) ? $data['nid'] : $data->nid;
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47
48 if (module_exists('translation')) {
49 if ($translation = module_invoke('translation', 'node_nid', $nid, $GLOBALS['locale'])) {
50 $nid = $translation;
d9ddf0ea 51 $reload = TRUE;
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52 }
53 }
54
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55 if (is_array($data) || !empty($reload)) {
56 $data = node_load($nid);
57 }
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58 }
59
60 if (!empty($data)) {
61 $context->data = $data;
62 $context->title = $data->title;
63 $context->argument = $data->nid;
64 return $context;
65 }
66}
67
68function panels_context_node_settings_form($conf, $external = FALSE) {
69 if ($external) {
70 $form['external'] = array(
71 '#type' => 'checkbox',
72 '#default_value' => $conf['external'],
73 '#title' => t('Require this context from an external source (such as a containing panel page).'),
74 '#description' => t('If selected, node selection (below) will be ignored.'),
75 );
76 }
77
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78 $form['node'] = array(
79 '#prefix' => '<div class="no-float">',
80 '#suffix' => '</div>',
81 '#title' => t('Enter the title or NID of a post'),
82 '#type' => 'textfield',
83 '#maxlength' => 512,
84 '#autocomplete_path' => 'panels/node/autocomplete',
85 '#weight' => -10,
86 );
87
88 if (!empty($conf['nid'])) {
89 $info = db_fetch_object(db_query("SELECT * FROM {node} n WHERE n.nid = %d", $conf['nid']));
90 if ($info) {
91 $link = l("'$info->title' [node id: $info->nid]", "node/$info->nid", array('target' => '_blank', 'title' => t('Open in new window')));
92 $form['node']['#description'] = t('Currently set to !link', array('!link' => $link));
93 }
94 }
95
96 $form['nid'] = array(
97 '#type' => 'value',
98 '#value' => $conf['nid'],
99 );
100
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101 $form['set_identifier'] = array(
102 '#type' => 'checkbox',
103 '#default_value' => FALSE,
104 '#title' => t('Reset identifier to node title'),
105 '#description' => t('If checked, the identifier will be reset to the node title of the selected node.'),
106 );
107
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108 return $form;
109}
110
111/**
112 * Validate a node.
113 */
dcc5ebb8 114function panels_context_node_settings_form_validate($form, &$form_values) {
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115 // Validate the autocomplete
116 if (empty($form_values['external']) && empty($form_values['nid']) && empty($form_values['node'])) {
117 form_error($form['node'], t('You must select a node.'));
118 return;
119 }
120
121 if (empty($form_values['node'])) {
122 return;
123 }
124
125 $nid = $form_values['node'];
126 $preg_matches = array();
127 $match = preg_match('/\[nid: (\d+)\]/', $nid, $preg_matches);
128 if (!$match) {
129 $match = preg_match('/^nid: (\d+)/', $nid, $preg_matches);
130 }
131
132 if ($match) {
133 $nid = $preg_matches[1];
134 }
135 if (is_numeric($nid)) {
136 $node = db_fetch_object(db_query(db_rewrite_sql("SELECT n.nid FROM {node} n WHERE n.nid = %d"), $nid));
137 }
138 else {
139 $node = db_fetch_object(db_query(db_rewrite_sql("SELECT n.nid FROM {node} n WHERE LOWER(n.title) = LOWER('%s')"), $nid));
140 }
141
142 if (!$node) {
143 form_error($form['node'], t('Invalid node selected.'));
144 }
145 else {
dcc5ebb8 146 $form_values['nid'] = $node->nid;
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147 }
148}
149
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150function panels_context_node_settings_form_submit($form, &$form_values, &$form_state) {
151 if ($form_values['set_identifier']) {
152 $node = node_load($form_values['nid']);
153 $form_state['values']['context']['identifier'] = $node->title;
154 }
155
156 // Don't let this be stored.
157 unset($form_values['set_identifier']);
158}