2013-04-04 09:26:00 +00:00
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<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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2013-04-04 09:26:04 +00:00
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* Copyright (C) 2000-2012 Bharat Mediratta
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2013-04-04 09:26:00 +00:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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class Gallery_View_Core extends View {
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protected $theme_name = null;
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protected $combine_queue = array();
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/**
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* Provide a url to a resource within the current theme. This allows us to refer to theme
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* resources without naming the theme itself which makes themes easier to copy.
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*/
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public function url($path, $absolute_url=false) {
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$arg = "themes/{$this->theme_name}/$path";
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return $absolute_url ? url::abs_file($arg) : url::file($arg);
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}
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2013-04-04 09:26:02 +00:00
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/**
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* Set up the data and render a pager.
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*
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* See themes/wind/views/pager.html for documentation on the variables generated here.
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*/
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public function paginator() {
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$v = new View("paginator.html");
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$v->page_type = $this->page_type;
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$v->page_subtype = $this->page_subtype;
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$v->first_page_url = null;
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$v->previous_page_url = null;
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$v->next_page_url = null;
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$v->last_page_url = null;
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if ($this->page_type == "collection") {
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$v->page = $this->page;
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$v->max_pages = $this->max_pages;
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$v->total = $this->children_count;
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if ($this->page != 1) {
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$v->first_page_url = url::site(url::merge(array("page" => 1)));
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$v->previous_page_url = url::site(url::merge(array("page" => $this->page - 1)));
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}
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if ($this->page != $this->max_pages) {
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$v->next_page_url = url::site(url::merge(array("page" => $this->page + 1)));
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$v->last_page_url = url::site(url::merge(array("page" => $this->max_pages)));
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}
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$v->first_visible_position = ($this->page - 1) * $this->page_size + 1;
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$v->last_visible_position = min($this->page * $this->page_size, $v->total);
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} else if ($this->page_type == "item") {
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$v->position = $this->position;
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$v->total = $this->sibling_count;
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if ($this->previous_item) {
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$v->previous_page_url = $this->previous_item->url();
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}
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if ($this->next_item) {
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$v->next_page_url = $this->next_item->url();
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}
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}
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return $v;
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}
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2013-04-04 09:26:00 +00:00
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/**
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* Begin gather up scripts or css files so that they can be combined into a single request.
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*
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* @param $types a comma separated list of types to combine, eg "script,css"
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*/
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public function start_combining($types) {
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foreach (explode(",", $types) as $type) {
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$this->combine_queue[$type] = array();
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}
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}
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/**
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* If script combining is enabled, add this script to the list of scripts that will be
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* combined into a single script element. When combined, the order of scripts is preserved.
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*
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* @param $file the file name or path of the script to include. If a path is specified then
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* it needs to be relative to DOCROOT. Just specifying a file name will result
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* in searching Kohana's cascading file system.
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* @param $group the group of scripts to combine this with. defaults to "core"
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*/
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public function script($file, $group="core") {
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if (($path = gallery::find_file("js", $file, false))) {
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if (isset($this->combine_queue["script"])) {
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$this->combine_queue["script"][$group][$path] = 1;
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} else {
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return html::script($path);
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}
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} else {
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Kohana_Log::add("error", "Can't find script file: $file");
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}
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}
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/**
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* If css combining is enabled, add this css to the list of css that will be
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* combined into a single style element. When combined, the order of style elements
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* is preserved.
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*
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* @param $file the file name or path of the css to include. If a path is specified then
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* it needs to be relative to DOCROOT. Just specifying a file name will result
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* in searching Kohana's cascading file system.
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* @param $group the group of css to combine this with. defaults to "core"
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*/
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public function css($file, $group="core") {
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if (($path = gallery::find_file("css", $file, false))) {
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if (isset($this->combine_queue["css"])) {
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$this->combine_queue["css"][$group][$path] = 1;
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} else {
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return html::stylesheet($path);
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}
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} else {
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Kohana_Log::add("error", "Can't find css file: $file");
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}
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}
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/**
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* Combine a series of files into a single one and cache it in the database.
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* @param $type the data type (script or css)
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* @param $group the group of scripts or css we want
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*/
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public function get_combined($type, $group="core") {
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$links = array();
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if (empty($this->combine_queue[$type][$group])) {
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return;
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}
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// Include the url in the cache key so that if the Gallery moves, we don't use old cached
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// entries.
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$key = array(url::abs_file(""));
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foreach (array_keys($this->combine_queue[$type][$group]) as $path) {
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$stats = stat($path);
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// 7 == size, 9 == mtime, see http://php.net/stat
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$key[] = "$path $stats[7] $stats[9]";
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}
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$key = md5(join(" ", $key));
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$cache = Cache::instance();
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$contents = $cache->get($key);
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if (empty($contents)) {
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2013-04-04 09:26:04 +00:00
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$combine_data = new stdClass();
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$combine_data->type = $type;
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$combine_data->contents = $this->combine_queue[$type][$group];
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module::event("before_combine", $combine_data);
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2013-04-04 09:26:02 +00:00
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2013-04-04 09:26:00 +00:00
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$contents = "";
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foreach (array_keys($this->combine_queue[$type][$group]) as $path) {
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if ($type == "css") {
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$contents .= "/* $path */\n" . $this->process_css($path) . "\n";
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} else {
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$contents .= "/* $path */\n" . file_get_contents($path) . "\n";
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}
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}
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2013-04-04 09:26:04 +00:00
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$combine_data = new stdClass();
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$combine_data->type = $type;
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$combine_data->contents = $contents;
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module::event("after_combine", $combine_data);
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2013-04-04 09:26:02 +00:00
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2013-04-04 09:26:04 +00:00
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$cache->set($key, $combine_data->contents, array($type), 30 * 84600);
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2013-04-04 09:26:00 +00:00
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$use_gzip = function_exists("gzencode") &&
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(int) ini_get("zlib.output_compression") === 0;
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if ($use_gzip) {
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2013-04-04 09:26:04 +00:00
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$cache->set("{$key}_gz", gzencode($combine_data->contents, 9, FORCE_GZIP),
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2013-04-04 09:26:00 +00:00
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array($type, "gzip"), 30 * 84600);
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}
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2013-04-04 09:26:02 +00:00
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2013-04-04 09:26:00 +00:00
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}
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unset($this->combine_queue[$type][$group]);
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2013-04-04 09:26:02 +00:00
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if (empty($this->combine_queue[$type])) {
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unset($this->combine_queue[$type]);
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}
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2013-04-04 09:26:00 +00:00
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if ($type == "css") {
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return html::stylesheet("combined/css/$key", "screen,print,projection", true);
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} else {
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return html::script("combined/javascript/$key", true);
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}
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}
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/**
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* Convert relative references inside a CSS file to absolute ones so that when it's served from
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* a new location as part of a combined bundle the references are still correct.
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* @param string the path to the css file
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*/
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private function process_css($css_file) {
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static $PATTERN = "#url\(\s*['|\"]{0,1}(.*?)['|\"]{0,1}\s*\)#";
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$docroot_length = strlen(DOCROOT);
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$css = file_get_contents($css_file);
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if (preg_match_all($PATTERN, $css, $matches, PREG_SET_ORDER)) {
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$search = $replace = array();
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foreach ($matches as $match) {
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$relative = dirname($css_file) . "/$match[1]";
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if (!empty($relative)) {
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$search[] = $match[0];
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$replace[] = "url('" . url::abs_file($relative) . "')";
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} else {
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Kohana_Log::add("error", "Missing URL reference '{$match[1]}' in CSS file '$css_file'");
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2013-04-04 09:26:02 +00:00
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2013-04-04 09:26:00 +00:00
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}
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}
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$replace = str_replace(DIRECTORY_SEPARATOR, "/", $replace);
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$css = str_replace($search, $replace, $css);
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}
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$imports = preg_match_all("#@import\s*['|\"]{0,1}(.*?)['|\"]{0,1};#",
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$css, $matches, PREG_SET_ORDER);
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if ($imports) {
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$search = $replace = array();
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foreach ($matches as $match) {
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$search[] = $match[0];
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$replace[] = $this->process_css(dirname($css_file) . "/$match[1]");
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}
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$css = str_replace($search, $replace, $css);
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}
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return $css;
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}
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}
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