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Diffstat (limited to 'modules/gallery/libraries/Gallery_View.php')
| -rw-r--r-- | modules/gallery/libraries/Gallery_View.php | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/modules/gallery/libraries/Gallery_View.php b/modules/gallery/libraries/Gallery_View.php new file mode 100644 index 00000000..133066d7 --- /dev/null +++ b/modules/gallery/libraries/Gallery_View.php @@ -0,0 +1,160 @@ +<?php defined("SYSPATH") or die("No direct script access."); +/** + * Gallery - a web based photo album viewer and editor + * Copyright (C) 2000-2009 Bharat Mediratta + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ +class Gallery_View_Core extends View { + protected $theme_name = null; + protected $scripts = array(); + protected $css = array(); + + /** + * Add a script to the combined scripts list. + * @param $file the relative path to a script from the gallery3 directory + */ + public function script($file) { + $this->scripts[$file] = 1; + } + + /** + * Add a script to the combined scripts list. + * @param $file the relative path to a script from the base of the active theme + * @param + */ + public function theme_script($file) { + $file = "themes/{$this->theme_name}/$file"; + $this->scripts[$file] = 1; + } + + /** + * Provide a url to a resource within the current theme. This allows us to refer to theme + * resources without naming the theme itself which makes themes easier to copy. + */ + public function theme_url($path, $absolute_url=false) { + $arg = "themes/{$this->theme_name}/$path"; + return $absolute_url ? url::abs_file($arg) : url::file($arg); + } + + /** + * Add a css file to the combined css list. + * @param $file the relative path to a script from the gallery3 directory + */ + public function css($file, $theme_relative=false) { + $this->css[$file] = 1; + } + + /** + * Add a css file to the combined css list. + * @param $file the relative path to a script from the base of the active theme + * @param + */ + public function theme_css($file) { + $file = "themes/{$this->theme_name}/$file"; + $this->css[$file] = 1; + } + + /** + * Combine a series of files into a single one and cache it in the database. + */ + protected function combine_files($files, $type) { + $links = array(); + + // Include the url in the cache key so that if the Gallery moves, we don't use old cached + // entries. + $key = array(url::abs_file("")); + + foreach (array_keys($files) as $file) { + $path = DOCROOT . $file; + if (file_exists($path)) { + $stats = stat($path); + $links[$file] = $path; + // 7 == size, 9 == mtime, see http://php.net/stat + $key[] = "$file $stats[7] $stats[9]"; + } else { + Kohana::log("error", "missing file ($type): $file"); + } + } + + $key = md5(join(" ", $key)); + $cache = Cache::instance(); + $contents = $cache->get($key); + + if (empty($contents)) { + $contents = ""; + foreach ($links as $file => $link) { + if ($type == "css") { + $contents .= "/* $file */\n" . $this->process_css($link) . "\n"; + } else { + $contents .= "/* $file */\n" . file_get_contents($link) . "\n"; + } + } + + $cache->set($key, $contents, array($type), 30 * 84600); + if (function_exists("gzencode")) { + $cache->set("{$key}_gz", gzencode($contents, 9, FORCE_GZIP), + array($type, "gzip"), 30 * 84600); + } + } + + if ($type == "css") { + return "<!-- LOOKING FOR YOUR CSS? It's all been combined into the link below -->\n" . + html::stylesheet("combined/css/$key", "screen,print,projection", true); + } else { + return "<!-- LOOKING FOR YOUR JAVASCRIPT? It's all been combined into the link below -->\n" . + html::script("combined/javascript/$key", true); + } + } + + /** + * Convert relative references inside a CSS file to absolute ones so that when it's served from + * a new location as part of a combined bundle the references are still correct. + * @param string the path to the css file + */ + private function process_css($css_file) { + static $PATTERN = "#url\(\s*['|\"]{0,1}(.*?)['|\"]{0,1}\s*\)#"; + $docroot_length = strlen(DOCROOT); + + $css = file_get_contents($css_file); + if (preg_match_all($PATTERN, $css, $matches, PREG_SET_ORDER)) { + $search = $replace = array(); + foreach ($matches as $match) { + $relative = substr(realpath(dirname($css_file) . "/$match[1]"), $docroot_length); + if (!empty($relative)) { + $search[] = $match[0]; + $replace[] = "url('" . url::abs_file($relative) . "')"; + } else { + Kohana::log("error", "Missing URL reference '{$match[1]}' in CSS file '$css_file'"); + } + } + $replace = str_replace(DIRECTORY_SEPARATOR, "/", $replace); + $css = str_replace($search, $replace, $css); + } + $imports = preg_match_all("#@import\s*['|\"]{0,1}(.*?)['|\"]{0,1};#", + $css, $matches, PREG_SET_ORDER); + + if ($imports) { + $search = $replace = array(); + foreach ($matches as $match) { + $search[] = $match[0]; + $replace[] = $this->process_css(dirname($css_file) . "/$match[1]"); + } + $css = str_replace($search, $replace, $css); + } + + return $css; + } +}
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