257 lines
6.5 KiB
PHP
257 lines
6.5 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016 Julius Härtl <jus@bitgrid.net>
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Daniel Kesselberg <mail@danielkesselberg.de>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julien Veyssier <eneiluj@posteo.net>
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* @author Julius Haertl <jus@bitgrid.net>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Michael Weimann <mail@michael-weimann.eu>
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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 OCA\Theming;
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use OCP\App\AppPathNotFoundException;
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use OCP\App\IAppManager;
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use OCP\Files\IAppData;
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use OCP\Files\NotFoundException;
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use OCP\Files\SimpleFS\ISimpleFile;
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use OCP\IConfig;
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use ScssPhp\ScssPhp\Compiler;
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class Util {
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/** @var IConfig */
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private $config;
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/** @var IAppManager */
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private $appManager;
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/** @var IAppData */
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private $appData;
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/**
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* Util constructor.
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*
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* @param IConfig $config
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* @param IAppManager $appManager
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* @param IAppData $appData
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*/
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public function __construct(IConfig $config, IAppManager $appManager, IAppData $appData) {
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$this->config = $config;
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$this->appManager = $appManager;
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$this->appData = $appData;
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}
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/**
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* @param string $color rgb color value
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* @return bool
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*/
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public function invertTextColor($color) {
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$l = $this->calculateLuma($color);
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if ($l > 0.6) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* get color for on-page elements:
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* theme color by default, grey if theme color is to bright
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* @param string $color
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* @param bool $brightBackground
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* @return string
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*/
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public function elementColor($color, bool $brightBackground = true) {
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$luminance = $this->calculateLuminance($color);
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if ($brightBackground && $luminance > 0.8) {
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// If the color is too bright in bright mode, we fall back to a darker gray
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return '#aaaaaa';
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}
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if (!$brightBackground && $luminance < 0.2) {
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// If the color is too dark in dark mode, we fall back to a brighter gray
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return '#555555';
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}
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return $color;
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}
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/**
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* @param string $color rgb color value
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* @return float
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*/
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public function calculateLuminance($color) {
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[$red, $green, $blue] = $this->hexToRGB($color);
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$compiler = new Compiler();
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$hsl = $compiler->toHSL($red, $green, $blue);
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return $hsl[3] / 100;
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}
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/**
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* @param string $color rgb color value
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* @return float
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*/
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public function calculateLuma($color) {
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[$red, $green, $blue] = $this->hexToRGB($color);
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return (0.2126 * $red + 0.7152 * $green + 0.0722 * $blue) / 255;
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}
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/**
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* @param string $color rgb color value
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* @return int[]
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*/
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public function hexToRGB($color) {
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$hex = preg_replace("/[^0-9A-Fa-f]/", '', $color);
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if (strlen($hex) === 3) {
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$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
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}
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if (strlen($hex) !== 6) {
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return 0;
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}
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return [
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hexdec(substr($hex, 0, 2)),
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hexdec(substr($hex, 2, 2)),
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hexdec(substr($hex, 4, 2))
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];
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}
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/**
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* @param $color
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* @return string base64 encoded radio button svg
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*/
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public function generateRadioButton($color) {
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$radioButtonIcon = '<svg xmlns="http://www.w3.org/2000/svg" height="16" width="16">' .
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'<path d="M8 1a7 7 0 0 0-7 7 7 7 0 0 0 7 7 7 7 0 0 0 7-7 7 7 0 0 0-7-7zm0 1a6 6 0 0 1 6 6 6 6 0 0 1-6 6 6 6 0 0 1-6-6 6 6 0 0 1 6-6zm0 2a4 4 0 1 0 0 8 4 4 0 0 0 0-8z" fill="'.$color.'"/></svg>';
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return base64_encode($radioButtonIcon);
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}
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/**
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* @param $app string app name
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* @return string|ISimpleFile path to app icon / file of logo
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*/
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public function getAppIcon($app) {
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$app = str_replace(['\0', '/', '\\', '..'], '', $app);
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try {
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$appPath = $this->appManager->getAppPath($app);
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$icon = $appPath . '/img/' . $app . '.svg';
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if (file_exists($icon)) {
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return $icon;
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}
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$icon = $appPath . '/img/app.svg';
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if (file_exists($icon)) {
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return $icon;
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}
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} catch (AppPathNotFoundException $e) {
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}
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if ($this->config->getAppValue('theming', 'logoMime', '') !== '') {
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$logoFile = null;
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try {
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$folder = $this->appData->getFolder('images');
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if ($folder !== null) {
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return $folder->getFile('logo');
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}
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} catch (NotFoundException $e) {
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}
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}
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return \OC::$SERVERROOT . '/core/img/logo/logo.svg';
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}
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/**
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* @param $app string app name
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* @param $image string relative path to image in app folder
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* @return string|false absolute path to image
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*/
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public function getAppImage($app, $image) {
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$app = str_replace(['\0', '/', '\\', '..'], '', $app);
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$image = str_replace(['\0', '\\', '..'], '', $image);
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if ($app === "core") {
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$icon = \OC::$SERVERROOT . '/core/img/' . $image;
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if (file_exists($icon)) {
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return $icon;
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}
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}
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try {
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$appPath = $this->appManager->getAppPath($app);
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} catch (AppPathNotFoundException $e) {
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return false;
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}
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$icon = $appPath . '/img/' . $image;
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if (file_exists($icon)) {
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return $icon;
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}
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$icon = $appPath . '/img/' . $image . '.svg';
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if (file_exists($icon)) {
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return $icon;
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}
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$icon = $appPath . '/img/' . $image . '.png';
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if (file_exists($icon)) {
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return $icon;
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}
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$icon = $appPath . '/img/' . $image . '.gif';
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if (file_exists($icon)) {
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return $icon;
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}
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$icon = $appPath . '/img/' . $image . '.jpg';
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if (file_exists($icon)) {
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return $icon;
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}
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return false;
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}
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/**
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* replace default color with a custom one
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*
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* @param $svg string content of a svg file
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* @param $color string color to match
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* @return string
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*/
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public function colorizeSvg($svg, $color) {
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$svg = preg_replace('/#0082c9/i', $color, $svg);
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return $svg;
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}
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/**
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* Check if a custom theme is set in the server configuration
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*
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* @return bool
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*/
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public function isAlreadyThemed() {
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$theme = $this->config->getSystemValue('theme', '');
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if ($theme !== '') {
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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 isBackgroundThemed() {
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$backgroundLogo = $this->config->getAppValue('theming', 'backgroundMime', '');
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return $backgroundLogo !== '' && $backgroundLogo !== 'backgroundColor';
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}
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}
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