Current File : /www/old2/_muzikoterapie/uloziste.eacm.cz/apps/theming/lib/Util.php
<?php
/**
* @copyright Copyright (c) 2016 Julius Härtl <jus@bitgrid.net>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Daniel Kesselberg <mail@danielkesselberg.de>
* @author Joas Schilling <coding@schilljs.com>
* @author Julien Veyssier <eneiluj@posteo.net>
* @author Julius Haertl <jus@bitgrid.net>
* @author Julius Härtl <jus@bitgrid.net>
* @author Michael Weimann <mail@michael-weimann.eu>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Theming;
use OCP\App\AppPathNotFoundException;
use OCP\App\IAppManager;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\IConfig;
use OCP\IUserSession;
use Mexitek\PHPColors\Color;
class Util {
private IConfig $config;
private IAppManager $appManager;
private IAppData $appData;
private ImageManager $imageManager;
public function __construct(IConfig $config, IAppManager $appManager, IAppData $appData, ImageManager $imageManager) {
$this->config = $config;
$this->appManager = $appManager;
$this->appData = $appData;
$this->imageManager = $imageManager;
}
/**
* @param string $color rgb color value
* @return bool
*/
public function invertTextColor($color) {
$l = $this->calculateLuma($color);
if ($l > 0.6) {
return true;
} else {
return false;
}
}
/**
* get color for on-page elements:
* theme color by default, grey if theme color is to bright
* @param string $color
* @param bool $brightBackground
* @return string
*/
public function elementColor($color, bool $brightBackground = true) {
$luminance = $this->calculateLuminance($color);
if ($brightBackground && $luminance > 0.8) {
// If the color is too bright in bright mode, we fall back to a darker gray
return '#aaaaaa';
}
if (!$brightBackground && $luminance < 0.2) {
// If the color is too dark in dark mode, we fall back to a brighter gray
return '#555555';
}
return $color;
}
public function mix(string $color1, string $color2, int $factor): string {
$color = new Color($color1);
return '#' . $color->mix($color2, $factor);
}
public function lighten(string $color, int $factor): string {
$color = new Color($color);
return '#' . $color->lighten($factor);
}
public function darken(string $color, int $factor): string {
$color = new Color($color);
return '#' . $color->darken($factor);
}
/**
* Convert RGB to HSL
*
* Copied from cssphp, copyright Leaf Corcoran, licensed under MIT
*
* @param int $red
* @param int $green
* @param int $blue
*
* @return float[]
*/
public function toHSL(int $red, int $green, int $blue): array {
$color = new Color(Color::rgbToHex(['R' => $red, 'G' => $green, 'B' => $blue]));
return array_values($color->getHsl());
}
/**
* @param string $color rgb color value
* @return float
*/
public function calculateLuminance(string $color): float {
[$red, $green, $blue] = $this->hexToRGB($color);
$hsl = $this->toHSL($red, $green, $blue);
return $hsl[2];
}
/**
* @param string $color rgb color value
* @return float
*/
public function calculateLuma(string $color): float {
[$red, $green, $blue] = $this->hexToRGB($color);
return (0.2126 * $red + 0.7152 * $green + 0.0722 * $blue) / 255;
}
/**
* @param string $color rgb color value
* @return int[]
* @psalm-return array{0: int, 1: int, 2: int}
*/
public function hexToRGB(string $color): array {
$color = new Color($color);
return array_values($color->getRgb());
}
/**
* @param $color
* @return string base64 encoded radio button svg
*/
public function generateRadioButton($color) {
$radioButtonIcon = '<svg xmlns="http://www.w3.org/2000/svg" height="16" width="16">' .
'<path d="M8 1a7 7 0 0 0-7 7 7 7 0 0 0 7 7 7 7 0 0 0 7-7 7 7 0 0 0-7-7zm0 1a6 6 0 0 1 6 6 6 6 0 0 1-6 6 6 6 0 0 1-6-6 6 6 0 0 1 6-6zm0 2a4 4 0 1 0 0 8 4 4 0 0 0 0-8z" fill="'.$color.'"/></svg>';
return base64_encode($radioButtonIcon);
}
/**
* @param $app string app name
* @return string|ISimpleFile path to app icon / file of logo
*/
public function getAppIcon($app) {
$app = str_replace(['\0', '/', '\\', '..'], '', $app);
try {
$appPath = $this->appManager->getAppPath($app);
$icon = $appPath . '/img/' . $app . '.svg';
if (file_exists($icon)) {
return $icon;
}
$icon = $appPath . '/img/app.svg';
if (file_exists($icon)) {
return $icon;
}
} catch (AppPathNotFoundException $e) {
}
if ($this->config->getAppValue('theming', 'logoMime', '') !== '') {
$logoFile = null;
try {
$folder = $this->appData->getFolder('images');
return $folder->getFile('logo');
} catch (NotFoundException $e) {
}
}
return \OC::$SERVERROOT . '/core/img/logo/logo.svg';
}
/**
* @param $app string app name
* @param $image string relative path to image in app folder
* @return string|false absolute path to image
*/
public function getAppImage($app, $image) {
$app = str_replace(['\0', '/', '\\', '..'], '', $app);
$image = str_replace(['\0', '\\', '..'], '', $image);
if ($app === "core") {
$icon = \OC::$SERVERROOT . '/core/img/' . $image;
if (file_exists($icon)) {
return $icon;
}
}
try {
$appPath = $this->appManager->getAppPath($app);
} catch (AppPathNotFoundException $e) {
return false;
}
$icon = $appPath . '/img/' . $image;
if (file_exists($icon)) {
return $icon;
}
$icon = $appPath . '/img/' . $image . '.svg';
if (file_exists($icon)) {
return $icon;
}
$icon = $appPath . '/img/' . $image . '.png';
if (file_exists($icon)) {
return $icon;
}
$icon = $appPath . '/img/' . $image . '.gif';
if (file_exists($icon)) {
return $icon;
}
$icon = $appPath . '/img/' . $image . '.jpg';
if (file_exists($icon)) {
return $icon;
}
return false;
}
/**
* replace default color with a custom one
*
* @param $svg string content of a svg file
* @param $color string color to match
* @return string
*/
public function colorizeSvg($svg, $color) {
$svg = preg_replace('/#0082c9/i', $color, $svg);
return $svg;
}
/**
* Check if a custom theme is set in the server configuration
*
* @return bool
*/
public function isAlreadyThemed() {
$theme = $this->config->getSystemValue('theme', '');
if ($theme !== '') {
return true;
}
return false;
}
public function isBackgroundThemed() {
$backgroundLogo = $this->config->getAppValue('theming', 'backgroundMime', '');
return $backgroundLogo !== '' && $backgroundLogo !== 'backgroundColor';
}
public function isLogoThemed() {
return $this->imageManager->hasImage('logo')
|| $this->imageManager->hasImage('logoheader');
}
public function getCacheBuster(): string {
$userSession = \OC::$server->get(IUserSession::class);
$userId = '';
$user = $userSession->getUser();
if (!is_null($user)) {
$userId = $user->getUID();
}
$userCacheBuster = '';
if ($userId) {
$userCacheBusterValue = (int)$this->config->getUserValue($userId, 'theming', 'userCacheBuster', '0');
$userCacheBuster = $userId . '_' . $userCacheBusterValue;
}
$systemCacheBuster = $this->config->getAppValue('theming', 'cachebuster', '0');
return substr(sha1($userCacheBuster . $systemCacheBuster), 0, 8);
}
}
Mini Shell