147 lines
3.6 KiB
PHP
147 lines
3.6 KiB
PHP
<?php
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declare (strict_types = 1);
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/**
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* @copyright Copyright (c) 2018, John Molakvoæ (skjnldsv@protonmail.com)
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*
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* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
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*
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* @license GNU AGPL version 3 or any later version
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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 Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Template;
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use OCP\Files\IAppData;
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use OCP\Files\NotFoundException;
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use OCP\Files\SimpleFS\ISimpleFolder;
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use OCP\Files\SimpleFS\ISimpleFile;
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use OCP\ILogger;
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use OCP\IURLGenerator;
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use OC\Files\AppData\Factory;
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class IconsCacher {
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/** @var ILogger */
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protected $logger;
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/** @var IAppData */
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protected $appData;
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/** @var ISimpleFolder */
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private $folder;
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/** @var IURLGenerator */
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protected $urlGenerator;
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/** @var string */
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private $iconVarRE = '/--(icon-[a-zA-Z0-9-]+):\s?url\(["\']([a-zA-Z0-9-_\~\/\.\?\=]+)[^;]+;/m';
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/** @var string */
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private $fileName = 'icons-vars.css';
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/**
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* @param ILogger $logger
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* @param Factory $appDataFactory
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* @param IURLGenerator $urlGenerator
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*/
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public function __construct(ILogger $logger,
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Factory $appDataFactory,
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IURLGenerator $urlGenerator) {
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$this->logger = $logger;
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$this->appData = $appDataFactory->get('css');
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$this->urlGenerator = $urlGenerator;
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try {
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$this->folder = $this->appData->getFolder('icons');
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} catch (NotFoundException $e) {
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$this->folder = $this->appData->newFolder('icons');
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}
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}
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private function getIconsFromCss(string $css): array{
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preg_match_all($this->iconVarRE, $css, $matches, PREG_SET_ORDER);
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$icons = [];
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foreach ($matches as $icon) {
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$icons[$icon[1]] = $icon[2];
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}
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return $icons;
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}
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/**
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* Parse and cache css
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*
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* @param string $css
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*/
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public function setIconsCss(string $css) {
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$cachedFile = $this->getCachedCSS();
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if (!$cachedFile) {
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$currentData = '';
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} else {
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$currentData = $cachedFile->getContent();
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}
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// remove :root
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$currentData = str_replace([':root {', '}'], '', $currentData);
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$icons = $this->getIconsFromCss($currentData . $css);
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$data = '';
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foreach ($icons as $icon => $url) {
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$data .= "--$icon: url('$url');";
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}
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if (strlen($data) > 0) {
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if (!$cachedFile) {
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$cachedFile = $this->folder->newFile($this->fileName);
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}
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$data = ":root {
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$data
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}";
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$cachedFile->putContent($data);
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}
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return preg_replace($this->iconVarRE, '', $css);
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}
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/**
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* Get icons css file
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* @return ISimpleFile|boolean
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*/
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public function getCachedCSS() {
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try {
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return $this->folder->getFile($this->fileName);
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} catch (NotFoundException $e) {
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return false;
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}
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}
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public function injectCss() {
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// Only inject once
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foreach (\OC_Util::$headers as $header) {
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if (
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array_key_exists('attributes', $header) &&
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array_key_exists('href', $header['attributes']) &&
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strpos($header['attributes']['href'], $this->fileName) !== false) {
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return;
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}
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}
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$linkToCSS = $this->urlGenerator->linkToRoute('core.Css.getCss', ['appName' => 'icons', 'fileName' => $this->fileName]);
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\OC_Util::addHeader('link', ['rel' => 'stylesheet', 'href' => $linkToCSS], null, true);
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}
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} |