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<?php
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// $Id: icon.module,v 1.7 2008/07/05 23:18:36 ximo Exp $
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/**
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* Implementation of hook_init().
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*/
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function icon_init() {
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init_theme(); // TODO: Must. Do. Better.
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global $icons, $theme;
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// Retrieve icons for current theme from cache (or rebuild).
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$icons = icon_get_icons($theme);
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// Add icon stylesheet file, if one has been generated for this theme.
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$stylesheet = variable_get('icon_'. $theme .'_stylesheet', NULL);
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if ($stylesheet) {
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drupal_add_css($stylesheet, 'theme', all, FALSE);
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}
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}
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/**
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* Implementation of hook_theme().
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*/
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function icon_theme() {
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return array(
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'icon' => array(
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'arguments' => array('name' => NULL, 'size' => NULL),
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),
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'icon_iconsets_form' => array(
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'arguments' => array('form' => NULL),
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),
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);
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}
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/**
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* Implementation of hook_perm().
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*/
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function icon_perm() {
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return array('administer icons');
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}
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/**
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* Implementation of hook_menu().
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*/
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function icon_menu() {
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// Global settings:
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$items['admin/build/icons'] = array(
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'title' => 'Icons',
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'description' => 'Administer icon sets and choose which icons to use.',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('icon_settings_form'),
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'access arguments' => array('administer icons'),
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);
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$items['admin/build/icons/settings'] = array(
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'title' => 'Global settings',
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'type' => MENU_DEFAULT_LOCAL_TASK,
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'weight' => -1,
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);
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// Icon configuration for enabled themes:
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require_once('includes/theme.inc');
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$themes = list_themes();
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foreach ($themes as $key => $theme) {
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// Only show themes with icons, or with base themes with icons.
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if ($theme->status && (is_array($theme->info['icons']) || ($themes[$theme->base_theme]->status && $themes[$theme->base_theme]->info['icons']))) {
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$items['admin/build/icons/'. $key] = array(
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'title' => $theme->info['name'],
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'page callback' => 'drupal_get_form',
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'page arguments' => array('icon_iconsets_form', $key),
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'access arguments' => array('administer icons'),
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'type' => MENU_LOCAL_TASK,
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);
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}
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}
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return $items;
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}
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/**
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* Menu callback; displays configuration options for all themes.
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*/
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function icon_settings_form(&$form_state) {
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$form['todo'] = array(
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'#value' => '<p>TODO: Figure out if this page is really needed.</p><p>For now, use the tabs above to configure themes. If you see no other tabs, you have no icons enabled themes.</p>',
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);
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return $form;
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}
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/**
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* Menu callback; displays a listing of all icon sets.
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*
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* @see theme_icon_iconsets_form()
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*/
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function icon_iconsets_form(&$form_state, $theme) {
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$themes = list_themes();
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// Fetch all icon sets available to the specified theme.
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$iconsets = icon_get_iconsets($theme);
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// Fetch icon set statuses and weights for the specified theme.
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icon_get_iconset_data($iconsets, $theme);
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// Sort the icon sets.
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uasort($iconsets, '_icon_sort_iconsets');
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$form = array('#tree' => TRUE);
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$form['theme'] = array(
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'#type' => 'value',
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'#value' => $theme,
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);
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// Add form elements for all available icon sets:
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foreach ($iconsets as $key => $iconset) {
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$screenshot = $iconset['path'] .'/'. $iconset['screenshot'];
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if ($iconset['screenshot'] && file_exists($screenshot)) {
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$form[$key]['screenshot']['#value'] = theme('image', $screenshot, t('Screenshot for %iconset icon set', array('%iconset' => $iconset['name'])), '', array('class' => 'screenshot'), FALSE);
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}
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else {
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$form[$key]['screenshot']['#value'] = t('no screenshot');
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}
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$form[$key]['iconset'] = array(
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'#type' => 'value',
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'#value' => $iconset,
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);
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$form[$key]['status'] = array(
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'#type' => 'checkbox',
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'#default_value' => isset($form_state[$key]['status']) ? $form_state[$key]['status'] : $iconset['status'],
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);
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$form[$key]['weight'] = array(
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'#type' => 'weight',
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'#delta' => 10,
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'#default_value' => isset($form_state[$key]['weight']) ? $form_state[$key]['weight'] : $iconset['weight'],
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);
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}
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if (count($iconsets)) {
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$form['buttons']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save configuration'),
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);
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$form['buttons']['reset'] = array(
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'#type' => 'submit',
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'#value' => t('Reset to defaults'),
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);
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}
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return $form;
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}
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/**
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* Process icon_iconsets_form form submissions.
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*/
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function icon_iconsets_form_submit($form, &$form_state) {
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$theme = $form_state['values']['theme'];
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// Build an array of icon sets and their statuses and weights.
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$iconsets = array();
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foreach ($form_state['values'] as $key => $value) {
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if (is_array($form_state['values'][$key]['iconset'])) {
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if ($form_state['values']['op'] == t('Save configuration')) {
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$iconsets[$key] = array(
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'status' => $form_state['values'][$key]['status'],
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'weight' => $form_state['values'][$key]['weight'],
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);
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}
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}
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}
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// Save changes to the icon sets.
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_icon_save_iconsets($iconsets, $theme);
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// Rebuild the cache of icons for the specified theme.
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$icons = icon_get_icons($theme, TRUE);
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// Rewrite stylesheets.
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icon_rewrite_stylesheets($icons, $theme);
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drupal_set_message(t('The configuration options have been saved.'));
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}
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/**
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* Save statuses and weights for icon sets.
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*
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* @param $iconsets
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* An array of icon sets to save.
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* @param $theme
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* The theme for which to save statuses.
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*/
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function _icon_save_iconsets($iconsets, $theme) {
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$result = db_query("SELECT iconset, status, weight FROM {iconsets} WHERE theme = '%s'", $theme);
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while ($item = db_fetch_object($result)) {
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if ($iconsets[$item->iconset] === NULL) {
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// Delete the icon set from the database if it no longer exists.
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db_query("DELETE FROM {iconsets} WHERE iconset = '%s' AND theme = '%s'", $item->iconset, $theme);
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}
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elseif ($iconsets[$item->iconset]['status'] != $item->status || $iconsets[$item->iconset]['weight'] != $item->weight) {
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// Update the icon set if its status or weight has changed.
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db_query("UPDATE {iconsets} SET status = %d, weight = %d WHERE iconset = '%s' AND theme = '%s'", $iconsets[$item->iconset]['status'], $iconsets[$item->iconset]['weight'], $item->iconset, $theme);
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}
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// Remove the processed icon set from the array.
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unset($iconsets[$item->iconset]);
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}
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// Any remaining icon sets are new and should be saved.
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foreach ($iconsets as $key => $iconset) {
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db_query("INSERT INTO {iconsets} (iconset, theme, status, weight) VALUES ('%s', '%s', %d, %d)", $key, $theme, $iconset['status'], $iconset['weight']);
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}
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}
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/**
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* Adds the statuses and weights to icon sets for a particular theme.
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*
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* @param $iconsets
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* An array of icon sets to check.
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* @param $theme
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* The theme to check for status against.
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*/
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function icon_get_iconset_data(&$iconsets, $theme) {
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$result = db_query("SELECT iconset, status, weight FROM {iconsets} WHERE theme = '%s'", $theme);
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while ($item = db_fetch_object($result)) {
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$data[$item->iconset] = $item;
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}
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foreach ($iconsets as $key => $iconset) {
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if (!isset($data[$key])) {
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$data[$key]->weight = 0;
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$data[$key]->status = ($iconsets[$key]['type'] == 'iconset' ? 0 : 1);
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}
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$iconsets[$key]['weight'] = $data[$key]->weight;
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$iconsets[$key]['status'] = ($iconsets[$key]['type'] == 'iconset' ? $data[$key]->status : 1);
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}
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}
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/**
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* Collect data about available icon sets.
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*
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* @param $theme
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* The theme to get available icons for.
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* @param $reset
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* (optional) Set to TRUE to reset the in-memory cache.
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* @return
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* An array of icon sets and their icons.
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*/
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function icon_get_iconsets($theme, $reset = FALSE) {
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static $iconsets = array();
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if (empty($iconsets) || $reset) {
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$infos = array();
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// Fetch information about standalone icon sets.
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$standalone_iconsets = icon_find_iconsets();
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foreach ($standalone_iconsets as $iconset) {
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$infos[$iconset->name] = $iconset->info;
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$iconsets[$iconset->name] = array(
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'name' => $iconset->info['name'],
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'description' => t($iconset->info['description']),
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'screenshot' => $iconset->info['screenshot'],
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'path' => dirname($iconset->filename),
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'type' => 'iconset',
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);
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}
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$themes = list_themes();
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// Fetch information about enabled system components that provide icons.
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$result = db_query("SELECT filename, name, type, info FROM {system} WHERE type <> 'iconset' AND status = 1 ORDER BY weight DESC");
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while ($component = db_fetch_object($result)) {
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// Make sure we don't fetch other themes' icons.
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if ($component->type == 'theme' && $component->name != $theme && $component->name != $themes[$theme]->base_theme) {
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continue;
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}
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// Only add components that provide icons.
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$info = unserialize($component->info);
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if ($info['icons']) {
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$infos[$component->name] = $info;
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$iconsets[$component->name] = array(
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'name' => $info['name'],
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'description' => t('Icons provided by %name.', array('%name' => $info['name'])),
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'path' => dirname($component->filename),
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'type' => $component->type,
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);
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}
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}
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// Locate icon files for the discovered icon sets.
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foreach ($iconsets as $key => $iconset){
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// Add paths to any icon size folders found.
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if (is_array($infos[$key]['sizes'])) {
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foreach ($infos[$key]['sizes'] as $size => $folder) {
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$path = $iconset['path'] .'/'. $folder;
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if (is_dir($path)) {
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$iconsets[$key]['sizes'][$size] = $path;
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}
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}
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}
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// Add paths to all icons in any provided sizes.
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if (is_array($infos[$key]['icons'])) {
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foreach ($infos[$key]['icons'] as $icon_name => $value) {
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// The icon has been declared with specific icon sizes, so look in the
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// specified path.
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if (is_array($value)) {
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foreach ($value as $size => $file) {
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$path = $iconset['path'] .'/'. $file;
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if (file_exists($path)) {
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$iconsets[$key]['icons'][$icon_name][$size] = $path;
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}
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}
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}
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// The icon has no specific size or path specified, so look in all
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// specified size folders.
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elseif ($iconsets[$key]['sizes']) {
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foreach ($iconsets[$key]['sizes'] as $size => $size_folder) {
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$path = $size_folder .'/'. $value;
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if (file_exists($path)) {
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$iconsets[$key]['icons'][$icon_name][$size] = $path;
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}
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}
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}
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}
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}
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// Remove any icon sets whose declared icon files doesn't exist.
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if (empty($iconsets[$key]['icons'])) {
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unset($iconsets[$key]);
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}
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}
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}
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return $iconsets;
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}
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/**
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* Find all standalone icon sets.
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*
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* @return
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* An array of icon set files.
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*/
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function icon_find_iconsets() {
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// Find standalone icon sets' .info files.
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$iconsets = drupal_system_listing('\.info$', 'icons', 'name', 0);
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// Extract current icon sets from database.
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system_get_files_database($iconsets, 'iconsets');
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// Set defaults for icon sets.
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$defaults = array(
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'name' => '',
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'description' => '',
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'screenshot' => 'screenshot.png',
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);
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// Add .info file's content to each icon set.
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foreach ($iconsets as $key => $iconset) {
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$iconsets[$key]->info = drupal_parse_info_file($iconset->filename) + $defaults;
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}
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$result = db_query("SELECT filename, name, info FROM {system} WHERE type = 'iconset'");
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while ($item = db_fetch_object($result)) {
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// Flag the icon set as processed.
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$iconsets[$item->name]->processed = TRUE;
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// Serialize the .info data.
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$info = serialize($iconsets[$item->name]->info);
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if (($iconsets[$item->name] === NULL) || !file_exists($item->filename)) {
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// Delete {system} and array entries if the icon set no longer exists.
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db_query("DELETE FROM {system} WHERE name = '%s'", $item->name);
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unset($iconsets[$item->name]);
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}
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elseif ($item->info != $info) {
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// Update the {system} entry if its info has changed.
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db_query("UPDATE {system} SET info = '%s' WHERE name = '%s'", $info);
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}
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}
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foreach ($iconsets as $key => $iconset) {
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if ($iconset->processed) {
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// The icon set has already been processed, so remove the flag.
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unset($iconsets[$key]->processed);
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}
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else {
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// Any icon sets that have not been processed should be stored.
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db_query("INSERT INTO {system} (name, owner, info, type, filename, status, throttle, bootstrap) VALUES ('%s', '%s', '%s', '%s', '%s', %d, %d, %d)", $iconset->name, '', serialize($iconset->info), 'iconset', $iconset->filename, $iconset->status, 0, 0);
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}
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}
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return $iconsets;
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}
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/**
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| 408 |
* Collect an array of all icons available to the specified theme.
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*
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* @param $theme
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* Name of the theme for which to get available icons.
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* @param $reset
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* (optional) Set to TRUE to reset the cache.
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* @return
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* An array of available icons for the specified theme.
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*/
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function icon_get_icons($theme, $reset = FALSE) {
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static $icons = array();
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if (!isset($icons[$theme]) || $reset) {
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if (!$reset && ($cache = cache_get('icon:'. $theme)) && !empty($cache->data)) {
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$icons[$theme] = $cache->data;
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}
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else {
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// Fetch icon sets, add data, sort as preferred.
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$iconsets = icon_get_iconsets($theme);
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icon_get_iconset_data($iconsets, $theme);
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uasort($iconsets, '_icon_sort_iconsets');
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// Combine all icons into one array.
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// TODO: Build an array of icons based on icons declared in themes and
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// modules, and use fallback to similar icons when none found.
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$icons[$theme] = array();
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foreach (array_reverse($iconsets) as $key => $iconset) {
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if ($iconset['status']) {
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$icons[$theme] = array_merge($icons[$theme], $iconset['icons']);
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}
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}
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// Cache the available icons.
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cache_set('icon:'. $theme, $icons[$theme]);
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}
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}
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return $icons[$theme];
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}
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/**
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| 449 |
* Rewrite stylesheets to add icons.
|
| 450 |
*/
|
| 451 |
function icon_rewrite_stylesheets($icons, $theme) {
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| 452 |
// Delete any existing stylesheet for this theme.
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| 453 |
if ($old_stylesheet = variable_get('icon_'. $theme .'_stylesheet', NULL)) {
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| 454 |
@unlink($old_stylesheet);
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| 455 |
}
|
| 456 |
|
| 457 |
// Fetch stylesheets added with drupal_add_css().
|
| 458 |
$css = drupal_add_css();
|
| 459 |
$paths = array();
|
| 460 |
foreach ($css['all'] as $type) {
|
| 461 |
$paths = array_merge($paths, $type);
|
| 462 |
}
|
| 463 |
|
| 464 |
// Rewrite stylesheets and combine the results.
|
| 465 |
$style = '';
|
| 466 |
foreach ($paths as $path => $preprocess) {
|
| 467 |
$style .= _icon_rewrite_stylesheet($path, $icons, $theme);
|
| 468 |
}
|
| 469 |
|
| 470 |
// Save rewritten styles as .css file in files directory.
|
| 471 |
$filename = _icon_save_stylesheet($style, $theme);
|
| 472 |
|
| 473 |
variable_set('icon_'. $theme .'_stylesheet', $filename);
|
| 474 |
}
|
| 475 |
|
| 476 |
/**
|
| 477 |
* Rewrite a single stylesheet to add icons.
|
| 478 |
*/
|
| 479 |
function _icon_rewrite_stylesheet($file, $icons, $theme) {
|
| 480 |
$themes = list_themes();
|
| 481 |
$theme = $themes[$theme];
|
| 482 |
if ($theme->base_theme) {
|
| 483 |
$theme = $themes[$theme->base_theme];
|
| 484 |
}
|
| 485 |
|
| 486 |
// Load original stylesheet.
|
| 487 |
$style = drupal_load_stylesheet($file, TRUE);
|
| 488 |
|
| 489 |
$chunks = preg_split('/\}/', $style, -1, PREG_SPLIT_NO_EMPTY);
|
| 490 |
|
| 491 |
foreach ($chunks as $chunk) {
|
| 492 |
foreach ($theme->info['icons'] as $icon => $sizes) {
|
| 493 |
foreach ($sizes as $size => $path) {
|
| 494 |
if (stripos($chunk, $path)) {
|
| 495 |
$new_icon = base_path() . $icons[$icon][$size];
|
| 496 |
$selector = substr($chunk, 0, stripos($chunk, '{'));
|
| 497 |
$output .= "$selector {background-image: url($new_icon);}";
|
| 498 |
}
|
| 499 |
}
|
| 500 |
}
|
| 501 |
}
|
| 502 |
|
| 503 |
return $output;
|
| 504 |
}
|
| 505 |
|
| 506 |
/**
|
| 507 |
* Save the rewritten stylesheet to disk.
|
| 508 |
*
|
| 509 |
* @param $style
|
| 510 |
* Content of the stylesheet to save.
|
| 511 |
* @return
|
| 512 |
* Filename of the saved stylesheet relative to the directory.
|
| 513 |
*/
|
| 514 |
function _icon_save_stylesheet($style, $theme) {
|
| 515 |
// Prepare the directory.
|
| 516 |
$directory = file_directory_path() .'/icon';
|
| 517 |
file_check_directory($directory, FILE_CREATE_DIRECTORY);
|
| 518 |
|
| 519 |
// Generate a filename.
|
| 520 |
$filename = $directory .'/'. $theme .'-'. substr(md5($style . microtime()), 0, 8) .'.css';
|
| 521 |
|
| 522 |
// Write new stylesheet.
|
| 523 |
file_save_data($style, $filename, FILE_EXISTS_REPLACE);
|
| 524 |
|
| 525 |
// Set standard file permissions for webserver-generated files.
|
| 526 |
@chmod($file, 0664);
|
| 527 |
|
| 528 |
return $filename;
|
| 529 |
}
|
| 530 |
|
| 531 |
/**
|
| 532 |
* Array sorting callback; sorts icon sets.
|
| 533 |
*/
|
| 534 |
function _icon_sort_iconsets($a, $b) {
|
| 535 |
if ($a['weight'] == $b['weight']) {
|
| 536 |
// Sort by name if equal weights.
|
| 537 |
return strcasecmp($a['name'], $b['name']);
|
| 538 |
}
|
| 539 |
else {
|
| 540 |
return $a['weight'] > $b['weight'];
|
| 541 |
}
|
| 542 |
}
|
| 543 |
|
| 544 |
/**
|
| 545 |
* Theme function for the icon sets overview form.
|
| 546 |
*
|
| 547 |
* @param $form
|
| 548 |
* An associative array containing the structure of the form.
|
| 549 |
* @see icon_iconsets_form()
|
| 550 |
*/
|
| 551 |
function theme_icon_iconsets_form($form) {
|
| 552 |
drupal_add_tabledrag('icon-iconsets', 'order', 'sibling', 'iconset-weight');
|
| 553 |
|
| 554 |
$header = array(
|
| 555 |
t('Screenshot'),
|
| 556 |
t('Name'),
|
| 557 |
array('data' => t('Enabled'), 'class' => 'checkbox'),
|
| 558 |
t('Weight')
|
| 559 |
);
|
| 560 |
|
| 561 |
$rows = array();
|
| 562 |
foreach (element_children($form) as $key) {
|
| 563 |
// Only look for icon sets.
|
| 564 |
if (!isset($form[$key]['iconset'])) {
|
| 565 |
continue;
|
| 566 |
}
|
| 567 |
|
| 568 |
$element = &$form[$key];
|
| 569 |
$iconset = &$element['iconset']['#value'];
|
| 570 |
|
| 571 |
// Add special classes to be used with tabledrag.js.
|
| 572 |
$element['weight']['#attributes']['class'] .= 'iconset-weight';
|
| 573 |
|
| 574 |
// Make it only possible to check/uncheck standalone icon sets.
|
| 575 |
if ($iconset['type'] != 'iconset') {
|
| 576 |
$element['status']['#attributes']['disabled'] = 'disabled';
|
| 577 |
$element['status']['#value'] = '1';
|
| 578 |
}
|
| 579 |
|
| 580 |
// Style icon set info.
|
| 581 |
$info = '<div class="iconset-info"><h2>'. $iconset['name'] .'</h2><div class="description">'. $iconset['description'] .'</div></div>';
|
| 582 |
|
| 583 |
// Build row.
|
| 584 |
$row = array();
|
| 585 |
$row[] = drupal_render($element['screenshot']);
|
| 586 |
$row[] = $info;
|
| 587 |
$row[] = array('data' => drupal_render($element['status']), 'class' => 'checkbox', 'align' => 'center');
|
| 588 |
$row[] = drupal_render($element['weight']);
|
| 589 |
$rows[] = array('data' => $row, 'class' => 'draggable');
|
| 590 |
}
|
| 591 |
if (empty($rows)) {
|
| 592 |
$rows[] = array(array('data' => t('No icon sets available.'), 'colspan' => '4'));
|
| 593 |
}
|
| 594 |
|
| 595 |
// Build the table and render the form.
|
| 596 |
$output = theme('table', $header, $rows, array('id' => 'icon-iconsets')) . drupal_render($form);
|
| 597 |
|
| 598 |
return $output;
|
| 599 |
}
|
| 600 |
|
| 601 |
/**
|
| 602 |
* Theme function for displaying an icon.
|
| 603 |
*
|
| 604 |
* @param $name
|
| 605 |
* The name of the icon to display.
|
| 606 |
* @param $size
|
| 607 |
* (optional) The desired size of the icon to display.
|
| 608 |
* @return
|
| 609 |
* A string containing an image tag of the icon.
|
| 610 |
*/
|
| 611 |
function theme_icon($name, $size = '32') {
|
| 612 |
global $icons;
|
| 613 |
return theme('image', $icons[$name][$size]);
|
| 614 |
}
|
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