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<?php
function xbbcode_list_xbbcode_info() {
$sample = t("[*] fruit\n[**] apples\n[**] bananas\n[*] animals\n[**] cat\n[**] dog");
$tags['list'] = array(
'callback' => '_xbbcode_list_render',
'description' => t('Formats a list of items in the default style.'),
'sample' => '[list]' . $sample . '[/list]',
);
$tags['ol'] = array(
'callback' => '_xbbcode_list_render',
'description' => t('Formats a numbered list of items.'),
'sample' => '[ol]' . $sample . '[/ol]',
);
$tags['ul'] = array(
'callback' => '_xbbcode_list_render',
'description' => t('Formats a non-numbered list of items.'),
'sample' => '[ul]' . $sample . '[/ul]',
);
return $tags;
}
function xbbcode_list_init() {
drupal_add_css(drupal_get_path('module', 'xbbcode_list') . '/xbbcode_list.css');
}
function _xbbcode_list_render($tag) {
$settings = variable_get('xbbcode_list', array(
'type' => 'ol',
'ol' => array(
'style' => 'hierarchy',
'classes' => array(
'numeric',
'lower-alpha',
'lower-roman',
),
),
));
$type = $tag->name == 'list' ? $settings['type'] : $tag->name;
$classes = $type == 'ol' ? $settings['ol']['style'] == 'hierarchy' ? $settings['ol']['classes'] : array(
'sectioned',
) : array(
'default',
);
$tree = _xbbcode_list_tree($tag->content);
return _xbbcode_list_render_tree($type, $classes, $tree);
}
function _xbbcode_list_tree($text) {
$text = str_replace("\n", '', $text);
$tokens = preg_split('/\\s*\\[(\\*+)\\]\\s*/', trim($text), -1, PREG_SPLIT_DELIM_CAPTURE);
array_shift($tokens);
$root = (object) array(
'sub' => array(),
'data' => NULL,
);
$stack = array(
$root,
);
if ($tokens[0] != '*') {
return NULL;
}
for ($i = 0; $i < count($tokens); $i += 2) {
if (strlen($tokens[$i] > count($stack) + 1)) {
return NULL;
}
elseif (strlen($tokens[$i]) == count($stack) + 1) {
array_push($stack, end(end($stack)->sub));
}
else {
while (strlen($tokens[$i]) < count($stack)) {
array_pop($stack);
}
}
end($stack)->sub[] = (object) array(
'sub' => array(),
'data' => $tokens[$i + 1],
);
}
return $root;
}
function _xbbcode_list_render_tree($type, $classes, $tree) {
$class = count($classes) > 1 ? array_shift($classes) : end($classes);
$out = $tree->data;
if ($tree->sub) {
$out .= "<{$type} class='{$class}'>";
foreach ($tree->sub as $item) {
$out .= '<li>' . _xbbcode_list_render_tree($type, $classes, $item) . '</li>';
}
$out .= "</{$type}>";
}
return $out;
}
function xbbcode_list_menu() {
$menu['admin/config/content/lists/autocomplete'] = array(
'title' => 'list-style-type autocomplete',
'page callback' => 'xbbcode_list_autocomplete',
'access arguments' => array(
'administer site configuration',
),
'type' => MENU_CALLBACK,
);
$menu['admin/config/content/lists'] = array(
'title' => 'BBCode list styles',
'description' => 'Configure the way that BBCode-formatted lists are displayed.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'xbbcode_list_admin_settings',
),
'access arguments' => array(
'administer site configuration',
),
'type' => MENU_NORMAL_ITEM,
);
return $menu;
}
function xbbcode_list_admin_settings($form_state) {
drupal_add_js(drupal_get_path('module', 'xbbcode_list') . '/xbbcode_list.js');
$settings = variable_get('xbbcode_list', array(
'type' => 'ol',
'ol' => array(
'style' => 'hierarchy',
'classes' => array(
'numeric',
'lower-alpha',
'lower-roman',
),
),
));
$form['#tree'] = TRUE;
$form['type'] = array(
'#type' => 'radios',
'#title' => t('Default list type'),
'#description' => t('Choose whether [list] is numbered or non-numbered by default. Users can override the default by using [ul] or [ol].'),
'#options' => array(
'ol' => t('Numbered'),
'ul' => t('Non-numbered'),
),
'#default_value' => $settings['type'],
);
$form['ol'] = array(
'#type' => 'fieldset',
'#title' => t('Ordered list settings'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
'#description' => t('Configure how to display lists with numbered items.'),
);
$form['ul'] = array(
'#type' => 'fieldset',
'#title' => t('Unordered list settings'),
'#collapsible' => FALSE,
'#collapsed' => FALSE,
'#description' => t('Configure how to display lists with non-numbered items.'),
);
$form['ol']['style'] = array(
'#type' => 'radios',
'#title' => t('Ordered list default'),
'#description' => t('Ordered lists will look like this by default. The style can be overridden with [ol=sections] and [ol=levels]'),
'#options' => array(
'sections' => t('Sectioned (this works only in a browser with CSS 2.0 support!)'),
'hierarchy' => t('Hierarchical levels'),
),
'#default_value' => $settings['ol']['style'],
);
$form['ol']['example'] = array(
'#markup' => '
<ol id="xbbocde_list_sample_1" class="numeric">
<li>' . t('Fruit') . '
<ol id="xbbocde_list_sample_2" class="lower-alpha">
<li>' . t('Citrus') . '
<ol id="xbbocde_list_sample_3" class="lower-roman">
<li>' . t('Lemon') . '</li>
<li>' . t('Orange') . '</li>
</ol>
</li>
</ol>
</li>
</ol>',
);
$form['ol']['classes'] = array(
'#type' => 'textfield',
'#title' => t('Style levels'),
'#description' => t('Enter a comma-separated list of styles that will be used by nested lists. Valid styles are: %list. Deeper levels will repeat the lowest level that was defined.', array(
'%list' => 'upper-roman, lower-roman, numeric, upper-alpha, lower-alpha, none',
)),
'#default_value' => implode(', ', $settings['ol']['classes']),
'#autocomplete_path' => 'admin/config/content/lists/autocomplete',
'#element_validate' => array(
'xbbcode_list_style_validate',
),
);
return $form;
}
function xbbcode_list_style_validate($element) {
$valid_styles = array(
'upper-alpha',
'lower-alpha',
'upper-roman',
'lower-roman',
'numeric',
);
$types = preg_split('/ *, */', $element['#value']);
foreach ($types as $type) {
if (!in_array($type, $valid_styles)) {
form_error($element, t('%type is not a valid style.', array(
'%type' => $type,
)));
}
}
}
function xbbcode_list_admin_settings_submit($form, &$form_state) {
$data = $form_state['values'];
$data['ol']['classes'] = preg_split('/ *, */', $element['#value']);
variable_set('xbbcode_list', $data);
}
function xbbcode_list_autocomplete($string) {
$styles = array(
'upper-alpha',
'lower-alpha',
'upper-roman',
'lower-roman',
'numeric',
);
$results = array();
if (preg_match('/^(.*,\\s*)?(.*)$/', check_plain($string), $match)) {
list($first, $last) = array(
$match[1],
$match[2],
);
$length = drupal_strlen($last);
foreach ($styles as $style) {
if (drupal_substr($style, 0, $length) == $last) {
$results[$first . $style] = $style;
}
}
}
drupal_json_output($results);
}
