478 lines
12 KiB
PHP
478 lines
12 KiB
PHP
<?php
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require_once ('global.php');
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require_once (CRAYON_LANGS_PHP);
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require_once (CRAYON_THEMES_PHP);
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require_once (CRAYON_FONTS_PHP);
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class CrayonResources {
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private static $langs = NULL;
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private static $themes = NULL;
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private static $fonts = NULL;
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private function __construct() {}
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public static function langs() {
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if (self::$langs == NULL) {
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self::$langs = new CrayonLangs();
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}
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return self::$langs;
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}
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public static function themes() {
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if (self::$themes == NULL) {
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self::$themes = new CrayonThemes();
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}
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return self::$themes;
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}
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public static function fonts() {
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if (self::$fonts == NULL) {
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self::$fonts = new CrayonFonts();
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}
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return self::$fonts;
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}
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}
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class CrayonResourceCollection {
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// Properties and Constants ===============================================
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// Loaded resources
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private $collection = array();
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// Loading state
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private $state = self::UNLOADED;
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// Directory containing resources
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private $dir = '';
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private $default_id = '';
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private $default_name = '';
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const UNLOADED = -1;
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const LOADING = 0;
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const LOADED = 1;
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// Methods ================================================================
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/* Override in subclasses. Returns the absolute path for a given resource. Does not check for its existence. */
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public function path($id) {
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return '';
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}
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/* Verifies a resource exists. */
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public function exists($id) {
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return file_exists($this->path($id));
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}
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/* Load all the available languages. Doesn't parse them for their names and regex. */
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public function load() {
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// Load only once
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if (!$this->is_state_unloaded()) {
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return;
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}
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$this->state = self::LOADING;
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$this->load_process();
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$this->state = self::LOADED;
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}
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public function load_resources($dir = NULL) {
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if ($dir === NULL) {
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$dir = $this->dir;
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}
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if (!$this->is_state_loading()) {
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// Load only once
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return;
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}
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try {
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// Look in directory for resources
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if (!is_dir($dir)) {
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CrayonLog::syslog('The resource directory is missing, should be at \'' . $dir . '\'.');
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} else if (($handle = @opendir($dir)) != FALSE) {
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// Loop over directory contents
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while (($file = readdir($handle)) !== FALSE) {
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if ($file != "." && $file != "..") {
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// Check if $file is directory, remove extension when checking for existence.
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if (!is_dir($dir . $file)) {
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$file = CrayonUtil::path_rem_ext($file);
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}
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if ($this->exists($file)) {
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$this->add_resource($this->resource_instance($file));
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}
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}
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}
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closedir($handle);
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}
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} catch (Exception $e) {
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CrayonLog::syslog('An error occured when trying to load resources: ' . $e->getFile() . $e->getLine());
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}
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}
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/* Override in subclasses. */
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public function load_process() {
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if (!$this->is_state_loading()) {
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return;
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}
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$this->load_resources();
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$this->add_default();
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}
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/* Override in subclasses */
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public function add_default() {
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if (!$this->is_state_loading()) {
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return FALSE;
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} else if (!$this->is_loaded($this->default_id)) {
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CrayonLog::syslog('The default resource could not be loaded from \'' . $this->dir . '\'.');
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// Add the default, but it will not be functionable
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$default = $this->resource_instance($this->default_id, $this->default_name);
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$this->add($this->default_id, $default);
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return TRUE;
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}
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return FALSE;
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}
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/* Returns the default resource */
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public function set_default($id, $name) {
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$this->default_id = $id;
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$this->default_name = $name;
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}
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/* Returns the default resource */
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public function get_default() {
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return $this->get($this->default_id);
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}
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/* Override in subclasses to create subclass object if needed */
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public function resource_instance($id, $name = NULL) {
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return new CrayonResource($id, $name);
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}
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public function add($id, $resource) {
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if (is_string($id) && !empty($id)) {
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$this->collection[$id] = $resource;
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asort($this->collection);
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CrayonLog::debug('Added resource: ' . $this->path($id));
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} else {
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CrayonLog::syslog('Could not add resource: ', $id);
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}
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}
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public function add_resource($resource) {
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$this->add($resource->id(), $resource);
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}
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public function remove($name) {
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if (is_string($name) && !empty($name) && array_key_exists($name, $this->collection)) {
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unset($this->collection[$name]);
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}
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}
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public function remove_all() {
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$this->collection = array();
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}
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/* Returns the resource for the given id or NULL if it can't be found */
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public function get($id = NULL) {
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$this->load();
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if ($id === NULL) {
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return $this->collection;
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} else if (is_string($id) && $this->is_loaded($id)) {
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return $this->collection[$id];
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}
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return NULL;
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}
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public function get_array() {
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$array = array();
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foreach ($this->get() as $resource) {
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$array[$resource->id()] = $resource->name();
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}
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return $array;
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}
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public function is_loaded($id) {
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if (is_string($id)) {
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return array_key_exists($id, $this->collection);
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}
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return FALSE;
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}
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public function get_state() {
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return $this->state;
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}
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public function is_state_loaded() {
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return $this->state == self::LOADED;
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}
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public function is_state_loading() {
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return $this->state == self::LOADING;
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}
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public function is_state_unloaded() {
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return $this->state == self::UNLOADED;
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}
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public function directory($dir = NULL) {
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if ($dir === NULL) {
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return $this->dir;
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} else {
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$this->dir = CrayonUtil::path_slash($dir);
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}
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}
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public function url($id) {
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return '';
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}
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public function get_css($id, $ver = NULL) {
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$resource = $this->get($id);
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return '<link rel="stylesheet" type="text/css" href="' . $this->url($resource->id()) . ($ver ? "?ver=$ver" : '') . '" />' . CRAYON_NL;
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}
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}
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class CrayonUsedResourceCollection extends CrayonResourceCollection {
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// Checks if any resoruces are being used
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public function is_used($id = NULL) {
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if ($id === NULL) {
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foreach ($this->get() as $resource) {
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if ($resource->used()) {
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return TRUE;
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}
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}
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return FALSE;
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} else {
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$resource = $this->get($id);
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if (!$resource) {
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return FALSE;
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} else {
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return $resource->used();
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}
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}
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}
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public function set_used($id, $value = TRUE) {
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$resource = $this->get($id);
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if ($resource !== NULL && !$resource->used()) {
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$resource->used($value == TRUE);
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return TRUE;
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}
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return FALSE;
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}
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public function get_used() {
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$used = array();
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foreach ($this->get() as $resource) {
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if ($resource->used()) {
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$used[] = $resource;
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}
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}
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return $used;
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}
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// XXX Override
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public function resource_instance($id, $name = NULL) {
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return new CrayonUsedResource($id, $name);
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}
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public function get_used_css() {
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$used = $this->get_used();
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$css = array();
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foreach ($used as $resource) {
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$url = $this->url($resource->id());
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$css[$resource->id()] = $url;
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}
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return $css;
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}
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}
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class CrayonUserResourceCollection extends CrayonUsedResourceCollection {
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private $user_dir = '';
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private $curr_dir = NULL;
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// TODO better to use a base dir and relative
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private $relative_directory = NULL;
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// TODO move this higher up inheritance
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private $extension = '';
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// XXX Override
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public function resource_instance($id, $name = NULL) {
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$resource = $this->create_user_resource_instance($id, $name);
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$resource->user($this->curr_dir == $this->user_directory());
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return $resource;
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}
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public function create_user_resource_instance($id, $name = NULL) {
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return new CrayonUserResource($id, $name);
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}
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public function user_directory($dir = NULL) {
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if ($dir === NULL) {
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return $this->user_dir;
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} else {
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$this->user_dir = CrayonUtil::path_slash($dir);
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}
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}
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public function relative_directory($relative_directory = NULL) {
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if ($relative_directory == NULL) {
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return $this->relative_directory;
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}
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$this->relative_directory = $relative_directory;
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}
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public function extension($extension = NULL) {
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if ($extension == NULL) {
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return $this->extension;
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}
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$this->extension = $extension;
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}
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public function load_resources($dir = NULL) {
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$this->curr_dir = $this->directory();
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parent::load_resources($this->curr_dir);
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$this->curr_dir = $this->user_directory();
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parent::load_resources($this->curr_dir);
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$this->curr_dir = NULL;
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}
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public function current_directory() {
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return $this->curr_dir;
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}
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public function dir_is_user($id, $user = NULL) {
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if ($user === NULL) {
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if ($this->is_state_loading()) {
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// We seem to be loading resources - use current directory
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$user = $this->current_directory() == $this->user_directory();
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} else {
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$theme = $this->get($id);
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if ($theme) {
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$user = $theme->user();
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} else {
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$user = FALSE;
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}
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}
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}
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return $user;
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}
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public function dirpath($user = NULL) {
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$path = $user ? $this->user_directory() : $this->directory();
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return CrayonUtil::path_slash($path);
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}
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public function dirpath_for_id($id, $user = NULL) {
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$user = $this->dir_is_user($id, $user);
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return $this->dirpath($user) . $id;
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}
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public function dirurl($user = NULL) {
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$path = $user ? CrayonGlobalSettings::upload_url() : CrayonGlobalSettings::plugin_path();
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return CrayonUtil::path_slash($path . $this->relative_directory());
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}
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// XXX Override
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public function path($id, $user = NULL) {
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$user = $this->dir_is_user($id, $user);
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return $this->dirpath($user) . $this->filename($id, $user);
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}
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// XXX Override
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public function url($id, $user = NULL) {
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$user = $this->dir_is_user($id, $user);
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return $this->dirurl($user) . $this->filename($id, $user);
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}
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public function filename($id, $user = NULL) {
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return "$id.$this->extension";
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}
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}
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class CrayonResource {
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private $id = '';
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private $name = '';
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function __construct($id, $name = NULL) {
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$id = $this->clean_id($id);
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CrayonUtil::str($this->id, $id);
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( empty($name) ) ? $this->name( self::clean_name($this->id) ) : $this->name($name);
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}
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function __tostring() {
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return $this->name;
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}
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function id() {
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return $this->id;
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}
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function name($name = NULL) {
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if ($name === NULL) {
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return $this->name;
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} else {
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$this->name = $name;
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}
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}
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function clean_id($id) {
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$id = CrayonUtil::space_to_hyphen( strtolower(trim($id)) );
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return preg_replace('#[^\w-]#msi', '', $id);
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}
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public static function clean_name($id) {
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$id = CrayonUtil::hyphen_to_space( strtolower(trim($id)) );
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return CrayonUtil::ucwords($id);
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}
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}
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class CrayonUsedResource extends CrayonResource {
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// Keeps track of usage
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private $used = FALSE;
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function used($used = NULL) {
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if ($used === NULL) {
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return $this->used;
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} else {
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$this->used = ($used ? TRUE : FALSE);
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}
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}
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}
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class CrayonUserResource extends CrayonUsedResource {
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// Keeps track of user modifications
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private $user = FALSE;
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function user($user = NULL) {
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if ($user === NULL) {
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return $this->user;
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} else {
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$this->user = ($user ? TRUE : FALSE);
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}
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}
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}
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class CrayonVersionResource extends CrayonUserResource {
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// Adds version
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private $version = '';
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function __construct($id, $name = NULL, $version = NULL) {
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parent::__construct($id, $name);
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$this->version($version);
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}
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function version($version = NULL) {
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if ($version === NULL) {
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return $this->version;
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} else if (is_string($version)) {
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$this->version = $version;
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}
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}
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}
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?>
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