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<?php
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/**
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* @file
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* Provide a javascript based dropbutton menu.
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*
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* An example are the edit/disable/delete links on the views listing page.
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*
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* The dropbutton menu will show up as a button with a clickable twisty pointer
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* to the right. When clicked the button will expand, showing the list of links.
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*
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* The dropbutton will stay open until either the user has moved the mouse
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* away from the box for > .5 seconds, or can be immediately closed by
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* clicking the twisty again. The code is smart enough that if the mouse
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* moves away and then back within the .5 second window, it will not
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* re-close.
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*
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* Multiple dropbuttons can be placed per page.
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*
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* If only one link is passed to the theme function, the function will render
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* a ctools-button with no twisty. The twisty is only rendered when 2 or more
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* links are provided. The wrapping element will be classed with both
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* ctools-button and ctools-dropbutton when a dropbutton is rendered.
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*
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* If the user does not have javascript enabled, the link will not appear,
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* and instead by default the list of links will appear as a normal inline
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* list.
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*
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* The menu is minimally styled by default, and to make it look different
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* will require your own CSS. You can apply your own class to the
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* dropbutton to help style it.
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*
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* The twisty is rendered as a border on a widthless and heightless element.
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* There is no image for the twisty.
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* The color of the twisty is the color of the link by default. To adjust the
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* size of the twisty, adjust the border widths on .ctools-twisty. The adjust
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* the color of the twisty, assign a new color to the .ctools-button class or
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* assign a color to .ctools-twisty. You shouldn't need to adjust border-color.
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*
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* Use the theme() function to render dropbutton e.g.
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* theme('links__ctools_dropbutton', array()) where array contains a renderable
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* array of links.
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*/
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/**
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* Delegated implementation of hook_theme()
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*/
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function ctools_dropbutton_theme(&$items) {
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$items['links__ctools_dropbutton'] = array(
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'variables' => array('title' => NULL, 'links' => NULL, 'image' => FALSE, 'class' => NULL),
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'file' => 'includes/dropbutton.theme.inc',
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);
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}
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/**
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* Create a dropbutton menu.
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*
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* @param $title
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* The text to place in the clickable area to activate the dropbutton. This
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* text is indented to -9999px by default.
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* @param $links
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* A list of links to provide within the dropbutton, suitable for use
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* in via Drupal's theme('links').
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* @param $image
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* If true, the dropbutton link is an image and will not get extra decorations
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* that a text dropbutton link will.
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* @param $class
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* An optional class to add to the dropbutton's container div to allow you
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* to style a single dropbutton however you like without interfering with
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* other dropbuttons.
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*/
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function theme_links__ctools_dropbutton($vars) {
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// Check to see if the number of links is greater than 1;
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// otherwise just treat this like a button.
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if (!empty($vars['links'])) {
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$is_drop_button = (count($vars['links']) > 1);
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// Add needed files
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if ($is_drop_button) {
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ctools_add_js('dropbutton');
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ctools_add_css('dropbutton');
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}
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ctools_add_css('button');
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// Provide a unique identifier for every button on the page.
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static $id = 0;
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$id++;
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// Wrapping div
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$class = 'ctools-no-js';
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$class .= ($is_drop_button) ? ' ctools-dropbutton' : '';
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$class .= ' ctools-button';
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if (!empty($vars['class'])) {
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$class .= ($vars['class']) ? (' ' . implode(' ', $vars['class'])) : '';
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}
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$output = '';
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$output .= '<div class="' . $class . '" id="ctools-button-' . $id . '">';
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// Add a twisty if this is a dropbutton
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if ($is_drop_button) {
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$vars['title'] = ($vars['title'] ? check_plain($vars['title']) : t('open'));
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$output .= '<div class="ctools-link">';
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if ($vars['image']) {
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$output .= '<a href="#" class="ctools-twisty ctools-image">' . $vars['title'] . '</a>';
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}
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else {
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$output .= '<a href="#" class="ctools-twisty ctools-text">' . $vars['title'] . '</a>';
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}
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$output .= '</div>'; // ctools-link
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}
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// The button content
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$output .= '<div class="ctools-content">';
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// Check for attributes. theme_links expects an array().
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$vars['attributes'] = (!empty($vars['attributes'])) ? $vars['attributes'] : array();
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// Remove the inline and links classes from links if they exist.
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// These classes are added and styled by Drupal core and mess up the default
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// styling of any link list.
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if (!empty($vars['attributes']['class'])) {
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$classes = $vars['attributes']['class'];
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foreach ($classes as $key => $class) {
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if ($class === 'inline' || $class === 'links') {
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unset($vars['attributes']['class'][$key]);
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}
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}
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}
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// Call theme_links to render the list of links.
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$output .= theme_links(array('links' => $vars['links'], 'attributes' => $vars['attributes'], 'heading' => ''));
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$output .= '</div>'; // ctools-content
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$output .= '</div>'; // ctools-dropbutton
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return $output;
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}
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else {
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return '';
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}
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}
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