mirror of
https://github.com/EGroupware/egroupware.git
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241 lines
7.1 KiB
PHP
241 lines
7.1 KiB
PHP
<?php
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/**
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* EGroupware API: Finding template specific images
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage image
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* @version $Id$
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*/
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namespace EGroupware\Api;
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/**
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* Finding template specific images
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*
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* Images availability is cached on instance level, cache can be invalidated by
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* calling Admin >> Delete cache and register hooks.
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*/
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class Image
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{
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/**
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* Searches a appname, template and maybe language and type-specific image
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*
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* @param string $app
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* @param string|array $image one or more image-name in order of precedence
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* @param string $extension ='' extension to $image, makes sense only with an array
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* @param boolean $_svg =false should svg images be returned or not:
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* true: always return svg, false: never return svg (current default), null: browser dependent, see svg_usable()
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* @return string url of image or null if not found
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*/
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static function find($app,$image,$extension='',$_svg=false)
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{
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$svg = Header\UserAgent::mobile() ? null : $_svg; // ATM we use svg icons only for mobile theme
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static $image_map_no_svg = null, $image_map_svg = null;
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if (is_null($svg)) $svg = self::svg_usable ();
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if ($svg)
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{
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$image_map =& $image_map_svg;
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}
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else
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{
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$image_map =& $image_map_no_svg;
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}
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if (is_null($image_map)) $image_map = self::map(null, $svg);
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// array of images in descending precedence
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if (is_array($image))
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{
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foreach($image as $img)
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{
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if (($url = self::find($app, $img, $extension)))
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{
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return $url;
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}
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}
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//error_log(__METHOD__."('$app', ".array2string($image).", '$extension') NONE found!");
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return null;
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}
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$webserver_url = $GLOBALS['egw_info']['server']['webserver_url'];
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// instance specific images have highest precedence
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if (isset($image_map['vfs'][$image.$extension]))
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{
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return $webserver_url.$image_map['vfs'][$image.$extension];
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}
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// then app specific ones
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if(isset($image_map[$app][$image.$extension]))
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{
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return $webserver_url.$image_map[$app][$image.$extension];
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}
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// then api
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if(isset($image_map['phpgwapi'][$image.$extension]))
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{
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return $webserver_url.$image_map['phpgwapi'][$image.$extension];
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}
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// if image not found, check if it has an extension and try withoug
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if (strpos($image, '.') !== false)
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{
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$name = null;
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self::get_extension($image, $name);
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return self::find($app, $name, $extension);
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}
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//error_log(__METHOD__."('$app', '$image', '$extension') image NOT found!");
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return null;
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}
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/**
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* Get extension (and optional basename without extension) of a given path
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*
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* @param string $path
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* @param string &$name on return basename without extension
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* @return string extension without dot, eg. 'php'
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*/
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protected static function get_extension($path, &$name=null)
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{
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$parts = explode('.', basename($path));
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$ext = array_pop($parts);
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$name = implode('.', $parts);
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return $ext;
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}
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/**
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* Does browser support svg
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*
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* All non IE and IE 9+
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*
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* @return boolean
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*/
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public static function svg_usable()
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{
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return Header\UserAgent::type() !== 'msie' || Header\UserAgent::version() >= 9;
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}
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/**
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* Scan filesystem for images of all apps
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*
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* For each application and image-name (without extension) one full path is returned.
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* The path takes template-set and image-type-priority (now fixed to: png, jpg, gif, ico) into account.
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*
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* VFS image directory is treated like an application named 'vfs'.
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*
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* @param string $template_set =null 'default', 'idots', 'jerryr', default is template-set from user prefs
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* @param boolean $svg =null prefer svg images, default for all browsers but IE<9
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* @return array of application => image-name => full path
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*/
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public static function map($template_set=null, $svg=null)
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{
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if (is_null($template_set))
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{
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$template_set = $GLOBALS['egw_info']['server']['template_set'];
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}
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if (is_null($svg))
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{
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$svg = self::svg_usable();
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}
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$cache_name = 'image_map_'.$template_set.($svg ? '_svg' : '');
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if (($map = Cache::getInstance(__CLASS__, $cache_name)))
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{
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return $map;
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}
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//$starttime = microtime(true);
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// priority: : PNG->JPG->GIF
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$img_types = array('png','jpg','gif','ico');
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// if we want svg, prepend it to img-types
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if ($svg) array_unshift ($img_types, 'svg');
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$map = array();
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foreach(scandir(EGW_SERVER_ROOT) as $app)
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{
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if ($app[0] == '.' || !is_dir(EGW_SERVER_ROOT.'/'.$app) || !file_exists(EGW_SERVER_ROOT.'/'.$app.'/templates')) continue;
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$app_map =& $map[$app];
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if (true) $app_map = array();
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$imagedirs = array();
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if (Header\UserAgent::mobile())
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{
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$imagedirs[] = '/'.$app.'/templates/mobile/images';
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}
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if ($app == 'phpgwapi')
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{
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$imagedirs[] = $GLOBALS['egw']->framework->template_dir.'/images';
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}
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else
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{
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$imagedirs[] = '/'.$app.'/templates/'.$template_set.'/images';
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}
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if ($template_set != 'idots') $imagedirs[] = '/'.$app.'/templates/idots/images';
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$imagedirs[] = '/'.$app.'/templates/default/images';
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foreach($imagedirs as $imagedir)
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{
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if (!file_exists($dir = EGW_SERVER_ROOT.$imagedir) || !is_readable($dir)) continue;
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foreach(scandir($dir) as $img)
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{
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if ($img[0] == '.') continue;
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$subdir = null;
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foreach(is_dir($dir.'/'.$img) ? scandir($dir.'/'.($subdir=$img)) : (array) $img as $img)
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{
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$name = null;
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if (!in_array($ext = self::get_extension($img, $name), $img_types) || empty($name)) continue;
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if (isset($subdir)) $name = $subdir.'/'.$name;
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if (!isset($app_map[$name]) || array_search($ext, $img_types) < array_search(self::get_extension($app_map[$name]), $img_types))
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{
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$app_map[$name] = $imagedir.'/'.$name.'.'.$ext;
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}
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}
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}
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}
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}
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$app_map =& $map['vfs'];
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if (true) $app_map = array();
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if (($dir = $GLOBALS['egw_info']['server']['vfs_image_dir']) && Vfs::file_exists($dir) && Vfs::is_readable($dir))
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{
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foreach(Vfs::find($dir) as $img)
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{
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if (!in_array($ext = self::get_extension($img, $name), $img_types) || empty($name)) continue;
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if (!isset($app_map[$name]) || array_search($ext, $img_types) < array_search(self::get_extension($app_map[$name]), $img_types))
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{
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$app_map[$name] = Vfs::download_url($img);
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}
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}
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}
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else if ($dir)
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{
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return $map;
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}
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//error_log(__METHOD__."('$template_set') took ".(microtime(true)-$starttime).' secs');
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Cache::setInstance(__CLASS__, $cache_name, $map, 86400); // cache for one day
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//echo "<p>template_set=".array2string($template_set)."</p>\n"; _debug_array($map);
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return $map;
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}
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/**
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* Delete image map cache for ALL template sets
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*/
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public static function invalidate()
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{
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$templates = array('idots', 'jerryr', 'jdots', 'pixelegg');
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if (($template_set = $GLOBALS['egw_info']['user']['preferences']['common']['template_set']) && !in_array($template_set, $templates))
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{
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$templates[] = $template_set;
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}
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//error_log(__METHOD__."() for templates ".array2string($templates));
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foreach($templates as $template_set)
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{
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Cache::unsetInstance(__CLASS__, 'image_map_'.$template_set);
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Cache::unsetInstance(__CLASS__, 'image_map_'.$template_set.'_svg');
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}
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}
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}
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