better_exposed_filters.theme in Better Exposed Filters 7
Same filename and directory in other branches
File
better_exposed_filters.themeView source
<?php
/**
* Themes a select element as a collection of checkboxes enclosed in a collapsible fieldset
*
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: title, value, options, description
* @return HTML string representing the form element.
*/
function theme_select_as_checkboxes_fieldset($vars) {
// Merge incoming element with some default values. Prevents a lot of
// $foo = isset($bar) ? $bar : $bar_default;
$element = array_merge(array(
'#bef_title' => '',
'#bef_description' => '',
), $vars['element']);
$fieldset = array(
'#title' => $element['#bef_title'],
'#description' => $element['#bef_description'],
'#attributes' => array(
'class' => array(
'bef-select-as-checkboxes-fieldset',
'collapsible',
),
),
);
if (empty($element['#value'])) {
// Using the FAPI #collapsible and #collapsed attribute doesn't work here
// TODO: not sure why...
$fieldset['#attributes']['class'][] = 'collapsed';
}
// Description is rendered as part of the fieldset, don't render it twice.
unset($element['#description']);
$fieldset['#children'] = theme('select_as_checkboxes', array(
'element' => $element,
));
return theme('fieldset', array(
'element' => $fieldset,
));
}
/**
* Themes a select element as a set of checkboxes
*
* @see theme_select(), http://api.drupal.org/api/function/theme_select/6
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: title, value, options, description
* @return HTML string representing the form element.
*/
function theme_select_as_checkboxes($vars) {
$element = $vars['element'];
if (!empty($element['#bef_nested'])) {
if (empty($element['#attributes']['class'])) {
$element['#attributes']['class'] = array();
}
$element['#attributes']['class'][] = 'form-checkboxes';
return theme('select_as_tree', array(
'element' => $element,
));
}
// the selected keys from #options
$selected_options = empty($element['#value']) ? $element['#default_value'] : $element['#value'];
// Grab exposed filter description. We'll put it under the label where it makes more sense.
$description = '';
if (!empty($element['#description'])) {
$description = '<div class="description">' . $element['#description'] . '</div>';
unset($element['#description']);
}
$output = '<div class="bef-checkboxes">';
foreach ($element['#options'] as $option => $elem) {
if ('All' === $option) {
// TODO: 'All' text is customizable in Views
// No need for an 'All' option -- either unchecking or checking all the checkboxes is equivalent
continue;
}
// Check for Taxonomy-based filters
if (is_object($elem)) {
list($option, $elem) = each(array_slice($elem->option, 0, 1, TRUE));
}
/*
* Check for optgroups. Put subelements in the $element_set array and add a group heading.
* Otherwise, just add the element to the set
*/
$element_set = array();
$is_optgroup = FALSE;
if (is_array($elem)) {
$output .= '<div class="bef-group">';
$output .= '<div class="bef-group-heading">' . $option . '</div>';
$output .= '<div class="bef-group-items">';
$element_set = $elem;
$is_optgroup = TRUE;
}
else {
$element_set[$option] = $elem;
}
foreach ($element_set as $key => $value) {
$output .= bef_checkbox($element, $key, $value, array_search($key, $selected_options) !== FALSE);
}
if ($is_optgroup) {
$output .= '</div></div>';
// Close group and item <div>s
}
}
$output .= '</div>';
// Fake theme_checkboxes() which we can't call because it calls theme_form_element() for each option
$attributes['class'] = array(
'form-checkboxes',
'bef-select-as-checkboxes',
);
if (!empty($element['#bef_select_all_none'])) {
$attributes['class'][] = 'bef-select-all-none';
}
if (!empty($element['#attributes']['class'])) {
$attributes['class'] = array_merge($element['#attributes']['class'], $attributes['class']);
}
return '<div' . drupal_attributes($attributes) . ">{$description}{$output}</div>";
}
/**
* Themes a select element as a series of hidden fields
*
* @see theme_select(), http://api.drupal.org/api/function/theme_select/6
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: title, value, options, description
* @return HTML string representing the form element.
*/
function theme_select_as_hidden($vars) {
$element = $vars['element'];
$output = '';
$selected_options = empty($element['#value']) ? $element['#default_value'] : $element['#value'];
$properties = array(
'title' => $element['#title'],
'description' => $element['#description'],
'required' => FALSE,
);
foreach ($element['#options'] as $option => $elem) {
// Check for Taxonomy-based filters
if (is_object($elem)) {
list($option, $elem) = each(array_slice($elem->option, 0, 1, TRUE));
}
/*
* Check for optgroups. Put subelements in the $element_set array and add a group heading.
* Otherwise, just add the element to the set
*/
$element_set = array();
if (is_array($elem)) {
$element_set = $elem;
}
else {
$element_set[$option] = $elem;
}
foreach ($element_set as $key => $value) {
// Only render fields for selected values -- no selected values renders zero fields
if (array_search($key, $selected_options) !== FALSE) {
// Custom ID for each hidden field based on the <select>'s original ID
$id = drupal_html_id($element['#id'] . '-' . $key);
// Very similar to theme_hidden (http://api.drupal.org/api/function/theme_hidden/6)
$hidden = '<input type="hidden" ' . 'name="' . $element['#name'] . '[]" ' . 'id="' . $id . '" ' . 'value="' . check_plain($key) . '" ' . drupal_attributes($element['#attributes']) . ' />';
$output .= theme('form_element', array(
'element' => array_merge($properties, array(
'#id' => $id,
'#children' => $hidden,
)),
));
}
}
}
return $output;
}
/**
* Themes a select element as a collection of radio buttons enclosed in a collapsible fieldset
*
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: title, value, options, description
* @return HTML string representing the form element.
*/
function theme_select_as_radios_fieldset($vars) {
// Merge incoming element with some default values. Prevents a lot of
// $foo = isset($bar) ? $bar : $bar_default;
$element = array_merge(array(
'#bef_title' => '',
'#bef_description' => '',
), $vars['element']);
// The "all" option is the first in the list. If the selected radio button is the all
// option, then leave the fieldset collapsed. Otherwise, render it opened.
$all = array_shift(array_keys($element['#options']));
$fieldset = array(
'#title' => $element['#bef_title'],
'#description' => $element['#bef_description'],
'#attributes' => array(
'class' => array(
'bef-select-as-checkboxes-fieldset',
'collapsible',
),
),
);
if (empty($element['#value'])) {
// Using the FAPI #collapsible and #collapsed attribute doesn't work here
// TODO: not sure why...
$fieldset['#attributes']['class'][] = 'collapsed';
}
$fieldset['#children'] = theme('select_as_radios', $element);
return theme('fieldset', array(
'element' => $fieldset,
));
}
/**
* Themes a select drop-down as a collection of radio buttons
*
* @see theme_select(), http://api.drupal.org/api/function/theme_select/7
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: return_value, value, attributes, title, description
* @return HTML string representing the form element.
*/
function theme_select_as_radios($vars) {
$element =& $vars['element'];
if (!empty($element['#bef_nested'])) {
return theme('select_as_tree', $vars);
}
$attributes = array();
if (isset($element['#id'])) {
$attributes['id'] = $element['#id'];
}
$attributes['class'] = array(
'bef-select-as-radios form-radios',
);
if (!empty($element['#attributes']['class'])) {
$attributes['class'] = array_merge($attributes['class'], $element['#attributes']['class']);
}
$output = '';
foreach (element_children($element) as $key) {
$element[$key]['#default_value'] = NULL;
$element[$key]['#children'] = theme('radio', array(
'element' => $element[$key],
));
$output .= theme('form_element', array(
'element' => $element[$key],
));
}
return '<div' . drupal_attributes($attributes) . '>' . $output . '</div>';
}
/**
* Themes a taxonomy-based exposed filter select element as a nested unordered list. Note: this
* routine depends on the '-' char prefixed on the term names by Views to determine depth.
*
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* @return HTML
*/
function theme_select_as_tree($vars) {
$element = $vars['element'];
// The selected keys from #options
$selected_options = empty($element['#value']) ? $element['#default_value'] : $element['#value'];
/*
* Build a bunch of nested unordered lists to represent the hierarchy based on the '-' prefix
* added by Views or optgroup structure.
*/
$output = '<ul class="bef-tree">';
$curr_depth = 0;
foreach ($element['#options'] as $option_value => $option_label) {
// Check for Taxonomy-based filters
if (is_object($option_label)) {
list($option_value, $option_label) = each(array_slice($option_label->option, 0, 1, TRUE));
}
// Check for optgroups -- which is basically a two-level deep tree
if (is_array($option_label)) {
// TODO:
}
else {
// Build hierarchy based on prefixed '-' on the element label
preg_match('/^(-*).*$/', $option_label, $matches);
$depth = strlen($matches[1]);
// Build either checkboxes or radio buttons, depending on Views' settings
$html = '';
if (!empty($element['#multiple'])) {
$html = bef_checkbox($element, $option_value, ltrim($option_label, '-'), array_search($option_value, $selected_options) !== FALSE);
}
else {
$html = theme('radio', array(
'element' => $element[$option_value],
));
}
if ($depth > $curr_depth) {
// We've moved down a level: create a new nested <ul>
// TODO: Is there is a way to jump more than one level deeper at a time? I don't think so...
$output .= "<ul class='bef-tree-child bef-tree-depth-{$depth}'><li>{$html}";
$curr_depth = $depth;
}
elseif ($depth < $curr_depth) {
// We've moved up a level: finish previous <ul> and <li> tags, once for each level, since we
// can jump multiple levels up at a time.
while ($depth < $curr_depth) {
$output .= '</li></ul>';
$curr_depth--;
}
$output .= "</li><li>{$html}";
}
else {
// Remain at same level as previous entry. No </li> needed if we're at the top level
if (0 == $curr_depth) {
$output .= "<li>{$html}";
}
else {
$output .= "</li><li>{$html}";
}
}
}
}
// foreach ($element['#options'] as $option_value => $option_label)
if (!$curr_depth) {
// Close last <li> tag
$output .= '</li>';
}
else {
// Finish closing <ul> and <li> tags
while ($curr_depth) {
$curr_depth--;
$output .= '</li></ul></li>';
}
}
// Close the opening <ul class="bef-tree"> tag
$output .= '</ul>';
// Add exposed filter description
$description = '';
if (!empty($element['#description'])) {
$description = '<div class="description">' . $element['#description'] . '</div>';
}
// Add the select all/none option, if needed
if (!empty($element['#bef_select_all_none'])) {
if (empty($element['#attributes']['class'])) {
$element['#attributes']['class'] = array();
}
$element['#attributes']['class'][] = 'bef-select-all-none';
}
return '<div' . drupal_attributes($element['#attributes']) . ">{$description}{$output}</div>";
}
/**
* Themes a select drop-down as a collection of links
*
* @see theme_select(), http://api.drupal.org/api/function/theme_select/6
* @param array $vars - An array of arrays, the 'element' item holds the properties of the element.
* Properties used: title, value, options, description, name
* @return HTML string representing the form element.
*/
function theme_select_as_links($vars) {
$element = $vars['element'];
$output = '';
$name = $element['#name'];
// Collect selected values so we can properly style the links later
$selected_options = array();
if (empty($element['#value'])) {
if (!empty($element['#default_values'])) {
$selected_options[] = $element['#default_values'];
}
}
else {
$selected_options[] = $element['#value'];
}
// Add to the selected options specified by Views whatever options are in the
// URL query string, but only for this filter
$urllist = parse_url(request_uri());
if (isset($urllist['query'])) {
$query = array();
parse_str(urldecode($urllist['query']), $query);
foreach ($query as $key => $value) {
if ($key != $name) {
continue;
}
if (is_array($value)) {
// This filter allows multiple selections, so put each one on the selected_options array
foreach ($value as $option) {
$selected_options[] = $option;
}
}
else {
$selected_options[] = $value;
}
}
}
// Go through each filter option and build the appropriate link or plain text
foreach ($element['#options'] as $option => $elem) {
// Check for Taxonomy-based filters
if (is_object($elem)) {
list($option, $elem) = each(array_slice($elem->option, 0, 1, TRUE));
}
/*
* Check for optgroups. Put subelements in the $element_set array and add a group heading.
* Otherwise, just add the element to the set
*/
$element_set = array();
if (is_array($elem)) {
$element_set = $elem;
}
else {
$element_set[$option] = $elem;
}
$links = array();
$multiple = !empty($element['#multiple']);
foreach ($element_set as $key => $value) {
// Custom ID for each link based on the <select>'s original ID
$id = drupal_html_id($element['#id'] . '-' . $key);
if (array_search($key, $selected_options) === FALSE) {
$link = l($value, bef_replace_query_string_arg($name, $key, $multiple));
$output .= theme('form_element', array(
'element' => array(
'#id' => $id,
'#children' => $link,
),
));
}
else {
// Selected value is output without a link
// TODO: add link to remove this option from the filter?
$elem = array(
'#id' => $id,
'#children' => $value,
);
_form_set_class($elem, array(
'bef-select-as-links-selected',
));
$output .= theme('form_element', array(
'element' => $elem,
));
}
}
}
$properties = array(
'#description' => isset($element['#description']) ? $element['#description'] : '',
'#children' => $output,
);
return '<div class="bef-select-as-links">' . theme('form_element', array(
'element' => $properties,
)) . '</div>';
}
/*
* Helper functions
*/
/**
* Build a BEF checkbox -- very similar to theme_checkbox
* (http://api.drupal.org/api/function/theme_checkbox/6)
*
* @param $element - array: original <select> element generated by Views
* @param $value - string: value of this checkbox option
* @param $label - string: label for this checkbox option
* @param $selected - bool: checked or not
* @return string: checkbox HTML
*/
function bef_checkbox($element, $value, $label, $selected) {
$value = check_plain($value);
$label = check_plain($label);
$id = drupal_html_id($element['#id'] . '-' . $value);
// Custom ID for each checkbox based on the <select>'s original ID
$properties = array(
'#required' => FALSE,
'#id' => $id,
);
// Prevent the select-all-none class from cascading to all checkboxes
if (!empty($element['#attributes']['class']) && FALSE !== ($key = array_search('bef-select-all-none', $element['#attributes']['class']))) {
unset($element['#attributes']['class'][$key]);
}
$checkbox = '<input type="checkbox" ' . 'name="' . $element['#name'] . '[]" ' . 'id="' . $id . '" ' . 'value="' . $value . '" ' . ($selected ? 'checked="checked" ' : '') . drupal_attributes($element['#attributes']) . ' />';
$properties['#children'] = "{$checkbox} <label class='option' for='{$id}'>{$label}</label>";
$output = theme('form_element', array(
'element' => $properties,
));
return $output;
}
/**
* Replaces/adds a given query string argument to the current URL
*
* @param string $key query string key (argument)
* @param string $value query string value
* @param bool $multiple TRUE if this key/value pair allows multiple values
*/
function bef_replace_query_string_arg($key, $value, $multiple = FALSE) {
$path = arg();
// Prevents us from having to check for each index from parse_url that we may use
$urllist = array(
'path' => '',
'fragment' => '',
'query' => '',
);
$urllist = array_merge($urllist, parse_url(request_uri()));
$fragment = urldecode($urllist['fragment']);
$query = array();
parse_str(urldecode($urllist['query']), $query);
if (isset($query[$key]) && is_array($query[$key])) {
// multiple values allowed for this existing key
$query[$key][] = $value;
}
else {
// Create a new key
if ($multiple) {
$query[$key] = array(
$value,
);
}
else {
$query[$key] = $value;
}
}
return url(implode('/', $path), array(
'query' => $query,
'fragment' => $fragment,
'absolute' => TRUE,
));
}
Functions
Name![]() |
Description |
---|---|
bef_checkbox | Build a BEF checkbox -- very similar to theme_checkbox (http://api.drupal.org/api/function/theme_checkbox/6) |
bef_replace_query_string_arg | Replaces/adds a given query string argument to the current URL |
theme_select_as_checkboxes | Themes a select element as a set of checkboxes |
theme_select_as_checkboxes_fieldset | Themes a select element as a collection of checkboxes enclosed in a collapsible fieldset |
theme_select_as_hidden | Themes a select element as a series of hidden fields |
theme_select_as_links | Themes a select drop-down as a collection of links |
theme_select_as_radios | Themes a select drop-down as a collection of radio buttons |
theme_select_as_radios_fieldset | Themes a select element as a collection of radio buttons enclosed in a collapsible fieldset |
theme_select_as_tree | Themes a taxonomy-based exposed filter select element as a nested unordered list. Note: this routine depends on the '-' char prefixed on the term names by Views to determine depth. |