/**
* Callback function, hooked into core action 'the_posts'.
*
* Enqueue only needed whistles style files. Search for available styles in all posts
* since it's possible to have several whistles shortcodes and/or styles in one request.
*
* @since 0.1
* @param array $posts Posts
* @return array Posts
*/
function whistles_styles_enqueue_styles($posts)
{
if (empty($posts)) {
return $posts;
}
foreach ($posts as $post) {
// Do we have whistles in this post?
if (strpos($post->post_content, '[whistles') !== false) {
// Return if there are no styles (which all belong to a certain type).
// This may happen if a custom style directory exists and is empty.
$types = whistles_styles_read_styles();
if (count($types) == 0) {
return $posts;
}
// Array of already enqueued files.
$processed = array();
// Take the appropriate styles directory.
if (is_dir(WHISTLES_STYLES_CUSTOM_DIR)) {
$styles_directory = WHISTLES_STYLES_CUSTOM_URL;
} else {
$styles_directory = WHISTLES_STYLES_PLUGIN_URL . 'styles/';
}
// Search for available styles in this post.
foreach ($types as $type => $its_styles) {
foreach ($its_styles as $style => $files) {
$needle = 'style="' . $style;
// Enqueue CSS and JS for found styles only.
if (stripos($post->post_content, $needle) !== false) {
if (isset($files['css']) && !in_array($files['css'], $processed)) {
wp_enqueue_style('whistles-' . $style, $styles_directory . $files['css'], false, WHISTLES_STYLES_VERSION, 'all');
$processed[] = $files['css'];
}
if (isset($files['js']) && !in_array($files['js'], $processed)) {
wp_enqueue_script('whistles-' . $style, $styles_directory . $files['js'], array(), WHISTLES_STYLES_VERSION, true);
$processed[] = $files['js'];
}
}
// end if: available style found in this post
}
// end foreach: style (e.g. tabs-bottom)
}
// end foreach: available types (e.g. tabs, accordion ...)
}
// end if: [whistles] shortcode(s) found in this post
}
// end foreach: posts of this request
return $posts;
}
/**
* Callback function, hooked into Whistles' filter 'whistles_allowed_types'.
*
* Auto-extend the list of allowed whistle types, if there is an output class
* found to include as a file AND if style files exist.
*/
function whistles_styles_extend_allowed_types($allowed_types)
{
$styles = whistles_styles_read_styles();
foreach ($styles as $type => $style_files) {
if (!isset($allowed_types[$type])) {
if (file_exists(WHISTLES_STYLES_PLUGIN_DIR . 'inc/class-whistles-styles-' . $type . '.php') || file_exists(WHISTLES_STYLES_CUSTOM_DIR . 'class-whistles-styles-' . $type . '.php')) {
$allowed_types += array($type => ucfirst($type));
}
}
}
return $allowed_types;
}
/**
* Callback for core hook 'plugins_loaded'.
*
* Provide a replaced shortcode configuration popup when the "Add Whistles"
* media button is clicked.
* Add the option to choose from provided Whistles Styles.
*
* @since 0.1
* @return void
*/
function whistles_styles_editor_shortcode_popup()
{
if (!current_user_can('edit_whistles')) {
return;
}
$type = whistles_get_allowed_types();
$terms = get_terms('whistle_group');
if (!empty($terms) && !is_wp_error($terms)) {
$all_terms = $terms;
$default_term = array_shift($all_terms);
$default_term = $default_term->slug;
} else {
$default_term = '';
}
/* Create an array of order options. */
$order = array('ASC' => esc_attr__('Ascending', 'whistles'), 'DESC' => esc_attr__('Descending', 'whistles'));
/* Create an array of orderby options. */
$orderby = array('author' => esc_attr__('Author', 'whistles'), 'date' => esc_attr__('Date', 'whistles'), 'ID' => esc_attr__('ID', 'whistles'), 'rand' => esc_attr__('Random', 'whistles'), 'name' => esc_attr__('Slug', 'whistles'), 'title' => esc_attr__('Title', 'whistles'));
/* Build an array of allowed styles from available ones in the file system.
This prevents display of styles without an existing output class. */
$styles = array();
$styles_avail = whistles_styles_read_styles();
foreach ($type as $allowed_type => $key) {
if (isset($styles_avail[$allowed_type])) {
foreach ($styles_avail[$allowed_type] as $style_name => $files_array) {
$styles[$style_name] = _whistles_styles_human_readable_style($style_name);
}
} else {
// If there is no style for an allowed type then we hide the type.
unset($type[$allowed_type]);
}
}
?>
<script>
jQuery( document ).ready(
function() {
/* Init of styles-to apply, depending on type */
selected_type = jQuery( 'input:radio[name=whistles-type]:checked' ).val();
jQuery( '#whistles-id-style option[value|="' + selected_type + '"]' ).removeAttr( 'disabled' );
jQuery( '#whistles-id-style :not(option[value|="' + selected_type + '"])' ).attr( 'disabled', 'disabled' );
jQuery( '#whistles-id-style :not(option[disabled="disabled"])' ).prop( 'selected', true );
jQuery( '#whistles-submit' ).attr(
'value',
'<?php
echo esc_js(__('Insert', 'whistles'));
?>
' + jQuery( 'input:radio[name=whistles-type]:checked + label' ).text()
);
style_selects = jQuery( '#whistles-id-style' );
jQuery( 'input:radio[name=whistles-type]' ).change(
function() {
jQuery( '#whistles-submit' ).attr(
'value',
'<?php
echo esc_js(__('Insert', 'whistles'));
?>
' + jQuery( this ).next( 'label' ).text()
);
/* Update of styles-to apply, depending on type */
selected_type = jQuery( 'input:radio[name=whistles-type]:checked' ).val();
jQuery( '#whistles-id-style option[value|="' + selected_type + '"]' ).removeAttr( 'disabled' );
jQuery( '#whistles-id-style :not(option[value|="' + selected_type + '"])' ).attr( 'disabled', 'disabled' );
jQuery( '#whistles-id-style :not(option[disabled="disabled"])' ).prop( 'selected', true );
}
);
}
);
function whistles_insert_shortcode(){
var type = jQuery( 'input:radio[name=whistles-type]:checked' ).val();
var group = jQuery( 'select#whistles-id-group option:selected' ).val();
var order = jQuery( 'select#whistles-id-order option:selected' ).val();
var orderby = jQuery( 'select#whistles-id-orderby option:selected' ).val();
var limit = jQuery( 'input#whistles-id-limit' ).val();
var style = jQuery( 'select#whistles-id-style option:selected' ).val(); // new option
window.send_to_editor(
'[whistles type="' + type + '" group="' + group + '" order="' + order + '" orderby="' + orderby + '" limit="' + limit + '" style="' + style + '"]'
);
}
</script>
<div id="whistles-shortcode-popup" style="display:none;">
<div class="wrap">
<?php
if (empty($terms)) {
?>
<p>
<?php
_e('You need at least one whistle group to display whistles.', 'whistles');
?>
<?php
if (current_user_can('manage_whistles')) {
?>
<a href="<?php
echo admin_url('edit-tags.php?taxonomy=whistle_group&post_type=whistle');
?>
"><?php
_e('Whistle Groups →', 'whistles');
?>
</a>
<?php
}
?>
</p>
<p class="submitbox">
<a class="button-secondary" href="#" onclick="tb_remove(); return false;"><?php
_e('Cancel', 'whistles');
?>
</a>
</p>
<?php
} else {
?>
<p>
<?php
_e('Type', 'whistles');
?>
<?php
foreach ($type as $option_value => $option_label) {
?>
<br />
<input type="radio" name="whistles-type" id="<?php
echo esc_attr('whistles-id-type-' . $option_value);
?>
" value="<?php
echo esc_attr($option_value);
?>
" <?php
checked('tabs', $option_value);
?>
/>
<label for="<?php
echo esc_attr('whistles-id-type-' . $option_value);
?>
"><?php
echo esc_html($option_label);
?>
</label>
<?php
}
?>
</p>
<p>
<label for="<?php
echo esc_attr('whistles-id-group');
?>
"><?php
_e('Group', 'whistles');
?>
</label>
<br />
<select class="widefat" id="<?php
echo esc_attr('whistles-id-group');
?>
" name="<?php
echo esc_attr('whistles-name-group');
?>
">
<?php
foreach ($terms as $term) {
?>
<option value="<?php
echo esc_attr($term->slug);
?>
" <?php
selected($default_term, $term->slug);
?>
><?php
echo esc_html($term->name);
?>
</option>
<?php
}
?>
</select>
</p>
<p>
<label for="<?php
echo esc_attr('whistles-id-limit');
?>
"><?php
_e('Number of whistles to display', 'whistles');
?>
</label>
<input type="text" maxlength="3" size="3" class="code" id="<?php
echo esc_attr('whistles-id-limit');
?>
" name="<?php
echo esc_attr('whistles-name-limit');
?>
" value="-1" />
</p>
<p>
<label for="<?php
echo esc_attr('whistles-id-order');
?>
"><?php
_e('Order', 'whistles');
?>
</label>
<br />
<select class="widefat" id="<?php
echo esc_attr('whistles-id-order');
?>
" name="<?php
echo esc_attr('whistles-name-order');
?>
">
<?php
foreach ($order as $option_value => $option_label) {
?>
<option value="<?php
echo esc_attr($option_value);
?>
" <?php
selected('DESC', $option_value);
?>
><?php
echo esc_html($option_label);
?>
</option>
<?php
}
?>
</select>
</p>
<p>
<label for="<?php
echo esc_attr('whistles-id-orderby');
?>
"><?php
_e('Order By', 'whistles');
?>
</label>
<br />
<select class="widefat" id="<?php
echo esc_attr('whistles-id-orderby');
?>
" name="<?php
echo esc_attr('whistles-name-orderby');
?>
">
<?php
foreach ($orderby as $option_value => $option_label) {
?>
<option value="<?php
echo esc_attr($option_value);
?>
" <?php
selected('date', $option_value);
?>
><?php
echo esc_html($option_label);
?>
</option>
<?php
}
?>
</select>
</p>
<?php
/////////// STYLES OPTION begin ///////////
?>
<p id="style">
<label for="whistles-id-style"><?php
_e('Style', 'whistles-styles');
?>
</label>
<br />
<select class="widefat" id="whistles-id-style" name="whistles-name-style">
<?php
foreach ($styles as $option_value => $option_label) {
?>
<option value="<?php
echo esc_attr($option_value);
?>
" <?php
selected('none', $option_value);
?>
><?php
echo esc_html($option_label);
?>
</option>
<?php
}
?>
</select>
</p>
<?php
/////////// STYLES OPTION end ///////////
?>
<p class="submitbox">
<input type="submit" id="whistles-submit" value="<?php
esc_attr_e('Insert Whistles', 'whistles');
?>
" class="button-primary" onclick="whistles_insert_shortcode();" />
<a class="button-secondary" href="#" onclick="tb_remove(); return false;"><?php
_e('Cancel', 'whistles');
?>
</a>
</p>
<?php
}
?>
</div>
</div>
<?php
}
