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<?php
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/**
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* @file facebook_apps_theme.inc
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* Theme functions and theme helper functions for the facebook_apps module.
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**/
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/**
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* Load up all the CSS with $media set as 'facebook' and display it inline.
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* This is the only form of style block FaceBook supports at the moment.
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**/
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function facebook_apps_get_inline_css() {
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$css = drupal_add_css();
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$style_data = '<style type="text/css">';
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foreach ($css['facebook'] as $type) {
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foreach ($type as $path => $preprocess) {
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$paths[$path] = $preprocess;
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// TODO: When this code is bullet proof, compact the CSS using a compressor then cache it.
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$style_data .= "/* INLINE CSS FROM: $path */\n" . file_get_contents($path) . "\n\n";
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}
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}
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$style_data .= '</style>';
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return $style_data;
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}
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/**
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* Rewrite's $content with rules from the hook_facebook_inline_css
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**/
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function facebook_apps_rewrite_inline_css($content) {
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// Each instance of the hook facebook_inline_css should accept $content by reference.
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// $rules should be of the form array('@from' => 'to', '@here' => 'to_there')
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$rules = module_invoke_all('facebook_inline_css', $content);
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return strtr($content, $rules);
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}
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/**
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* The functionality of the pager_query but works on an array.
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*
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* @param $dataset
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* The dataset to be paged through.
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* @param $limit
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* How many results to return at a time.
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* @param $element
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* The pager element (see pager_query)
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* @return $subset
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* A slice of the array.
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**/
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function pager_query_array($dataset, $limit = 10, $element = 0) {
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global $pager_page_array, $pager_total, $pager_total_items;
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$page = isset($_GET['page']) ? $_GET['page'] : '';
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// Substitute in query arguments.
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$args = func_get_args();
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$args = array_slice($args, 4);
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// Alternative syntax for '...'
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if (isset($args[0]) && is_array($args[0])) {
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$args = $args[0];
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}
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// Convert comma-separated $page to an array, used by other functions.
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$pager_page_array = explode(',', $page);
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// We calculate the total of pages as ceil(items / limit).
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$pager_total_items[$element] = count($dataset);
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$pager_total[$element] = ceil($pager_total_items[$element] / $limit);
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$pager_page_array[$element] = max(0, min((int)$pager_page_array[$element], ((int)$pager_total[$element]) - 1));
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if (is_array($dataset) && count($dataset) > 1) {
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return array_slice($dataset, $pager_page_array[0] * $limit, $limit);
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} else {
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return array();
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}
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}
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/**
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* A slight augmentation of the existing Drupal pager to better fit in the
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* Facebook FBML framework.
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**/
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function theme_facebook_pager($tags = array(), $limit = 10, $element = 0, $parameters = array()) {
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global $pager_total;
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$output = '';
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if ($pager_total[$element] > 1) {
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$output .= '<ul id="pag_nav_links" class="pagerpro">';
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// $output .= '<li>' . theme('facebook_pager_first', ($tags[0] ? $tags[0] : t('´ first')), $limit, $element, $parameters) . '</li>';
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$output .= theme('facebook_pager_previous', ($tags[1] ? $tags[1] : t('Prev')), $limit, $element, 1, $parameters);
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$output .= theme('facebook_pager_list', $limit, $element, ($tags[2] ? $tags[2] : 9 ), '', $parameters);
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$output .= theme('facebook_pager_next', ($tags[3] ? $tags[3] : t('Next')), $limit, $element, 1, $parameters);
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// $output .= '<li>' . theme('facebook_pager_last', ($tags[4] ? $tags[4] : t('last ª')), $limit, $element, $parameters) . '</li>';
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$output .= '</ul>';
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return $output;
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}
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}
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function theme_facebook_pager_first($text, $limit, $element = 0, $parameters = array()) {
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global $pager_page_array;
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$output = '';
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// If we are anywhere but the first page
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if ($pager_page_array[$element] > 0) {
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$output = theme('facebook_pager_link', $text, pager_load_array(0, $element, $pager_page_array), $element, $parameters, array('class' => 'pager-first'));
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}
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return $output;
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}
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function theme_facebook_pager_previous($text, $limit, $element = 0, $interval = 1, $parameters = array()) {
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global $pager_page_array;
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$output = '';
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// If we are anywhere but the first page
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if ($pager_page_array[$element] > 0) {
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$page_new = pager_load_array($pager_page_array[$element] - $interval, $element, $pager_page_array);
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// If the previous page is the first page, mark the link as such.
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if ($page_new[$element] == 0) {
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$output = theme('facebook_pager_first', $text, $limit, $element, $parameters);
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}
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// The previous page is not the first page.
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else {
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$output = theme('facebook_pager_link', $text, $page_new, $element, $parameters, array('class' => 'pager-previous'));
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}
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}
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return $output;
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}
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function theme_facebook_pager_list($limit, $element = 0, $quantity = 5, $text = '', $parameters = array()) {
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global $pager_page_array, $pager_total;
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// $output = '<span>';
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// Calculate various markers within this pager piece:
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// Middle is used to "center" pages around the current page.
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$pager_middle = ceil($quantity / 2);
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// current is the page we are currently paged to
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$pager_current = $pager_page_array[$element] + 1;
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// first is the first page listed by this pager piece (re quantity)
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$pager_first = $pager_current - $pager_middle + 1;
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// last is the last page listed by this pager piece (re quantity)
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$pager_last = $pager_current + $quantity - $pager_middle;
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// max is the maximum page number
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$pager_max = $pager_total[$element];
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// End of marker calculations.
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// Prepare for generation loop.
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$i = $pager_first;
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if ($pager_last > $pager_max) {
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// Adjust "center" if at end of query.
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$i = $i + ($pager_max - $pager_last);
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$pager_last = $pager_max;
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}
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if ($i <= 0) {
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// Adjust "center" if at start of query.
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$pager_last = $pager_last + (1 - $i);
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$i = 1;
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}
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// End of generation loop preparation.
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// When there is more than one page, create the pager list.
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if ($i != $pager_max) {
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$output .= $text;
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// if ($i > 1) {
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// $output .= '<li><span>Ö</span></li>';
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// }
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// Now generate the actual pager piece.
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for (; $i <= $pager_last && $i <= $pager_max; $i++) {
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if ($i < $pager_current) {
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$output .= theme('facebook_pager_previous', $i, $limit, $element, ($pager_current - $i), $parameters);
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}
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if ($i == $pager_current) {
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$output .= theme('facebook_pager_link', $i, $limit, $element, $i, $parameters, true);
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}
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if ($i > $pager_current) {
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$output .= theme('facebook_pager_next', $i, $limit, $element, ($i - $pager_current), $parameters);
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}
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}
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// if ($i < $pager_max) {
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// $output .= '<li><span>Ö</span></li>';
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// }
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}
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// $output .= '</span>';
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return $output;
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}
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function theme_facebook_pager_next($text, $limit, $element = 0, $interval = 1, $parameters = array()) {
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global $pager_page_array, $pager_total;
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$output = '';
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// If we are anywhere but the last page
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if ($pager_page_array[$element] < ($pager_total[$element] - 1)) {
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$page_new = pager_load_array($pager_page_array[$element] + $interval, $element, $pager_page_array);
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// If the next page is the last page, mark the link as such.
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if ($page_new[$element] == ($pager_total[$element] - 1)) {
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$output = theme('facebook_pager_last', $text, $limit, $element, $parameters);
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}
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// The next page is not the last page.
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else {
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$output = theme('facebook_pager_link', $text, $page_new, $element, $parameters, array('class' => 'pager-next'));
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}
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}
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return $output;
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}
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function theme_facebook_pager_last($text, $limit, $element = 0, $parameters = array()) {
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global $pager_page_array, $pager_total;
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$output = '';
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// If we are anywhere but the last page
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if ($pager_page_array[$element] < ($pager_total[$element] - 1)) {
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$output = theme('facebook_pager_link', $text, pager_load_array($pager_total[$element] - 1, $element, $pager_page_array), $element, $parameters, array('class' => 'pager-last'));
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}
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return $output;
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}
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function theme_facebook_pager_link($text, $page_new, $element, $parameters = array(), $attributes = array(), $current = false) {
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$page = isset($_GET['page']) ? $_GET['page'] : '';
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// drupal_set_message("page: " . $page . ", page_new: " . $page_new[$element] . ", element: " . $element . ", exploded: " . var_export(explode(',', $page), 1));
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if ($new_page = implode(',', pager_load_array($page_new[$element], $element, explode(',', $page)))) {
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$parameters['page'] = $new_page;
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}
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$query = array();
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if (count($parameters) && is_array($parameters)) {
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$query[] = drupal_query_string_encode($parameters, array());
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}
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$querystring = facebook_pager_get_querystring();
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if ($querystring != '') {
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$query[] = $querystring;
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}
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// Set each pager link title
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if (!isset($attributes['title'])) {
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static $titles = NULL;
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if (!isset($titles)) {
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$titles = array(
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t('´ first') => t('Go to first page'),
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t('ã previous') => t('Go to previous page'),
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t('next õ') => t('Go to next page'),
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t('last ª') => t('Go to last page'),
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);
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}
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if (isset($titles[$text])) {
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$attributes['title'] = $titles[$text];
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}
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else if (is_numeric($text)) {
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$attributes['title'] = t('Go to page @number', array('@number' => $text));
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}
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}
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global $fb_conf;
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return ($current ? '<li class="current">' : '<li>') . l($text, $fb_conf['app_url'] . '/' . facebook_apps_get_app_path(), $attributes, count($query) ? implode('&', $query) : NULL) . '</li>';
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}
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function facebook_pager_get_querystring() {
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static $string = NULL;
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if (!isset($string)) {
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$request_no_fb_vars = array();
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foreach ($_REQUEST as $key => $val) {
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if (substr($key, 0, 6) != 'fb_sig') {
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$request_no_fb_vars[$key] = $val;
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}
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}
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$string = drupal_query_string_encode($request_no_fb_vars, array_merge(array('q', 'page'), array_keys($_COOKIE)));
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}
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return $string;
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}
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/**
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* Writes out a string like 'Displaying 10 out of 256 NOUNs'
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**/
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function theme_facebook_pager_stats($element, $limit = 10, $noun = 'Widget') {
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global $pager_page_array, $pager_total, $pager_total_items;
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$start = $pager_page_array[$element] * $limit + 1;
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$end = ($start <= ($pager_total_items[$element] - $limit) ? $start - 1 + $limit : $pager_total_items[$element]);
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if ($pager_total[$element] > 1) {
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return t(
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'<div class="summary">Displaying <span id="pag_obj_first_on_page">!start</span> - <span id="pag_obj_last_on_page">!end</span> out of <span id="pag_obj_total">!total</span> of your !nouns.</div>',
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array(
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'!start' => $start,
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'!end' => $end,
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'!total' => $pager_total_items[$element],
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'!noun' => $noun,
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)
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);
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} else {
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return t(
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'<div class="summary">Displaying your !nouns.</div>',
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array(
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'!noun' => $noun,
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)
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);
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}
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}
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