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<?php
/**
* @copyright Copyright (c) 2016 Julius Härtl <jus@bitgrid.net>
*
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Haertl <jus@bitgrid.net>
* @author Julius Härtl <jus@bitgrid.net>
*
* @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 Leafo\ScssPhp\Compiler;
use OCP\App\AppPathNotFoundException;
use OCP\App\IAppManager;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\IConfig;
class Util {
/** @var IConfig */
private $config;
/** @var IAppManager */
private $appManager;
/** @var IAppData */
private $appData;
/**
* Util constructor.
*
* @param IConfig $config
* @param IAppManager $appManager
* @param IAppData $appData
*/
public function __construct(IConfig $config, IAppManager $appManager, IAppData $appData) {
$this->config = $config;
$this->appManager = $appManager;
$this->appData = $appData;
}
/**
* @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 $color
* @return string
*/
public function elementColor($color) {
$l = $this->calculateLuminance($color);
if($l>0.8) {
return '#aaaaaa';
}
return $color;
}
/**
* @param string $color rgb color value
* @return float
*/
public function calculateLuminance($color) {
list($red, $green, $blue) = $this->hexToRGB($color);
$compiler = new Compiler();
$hsl = $compiler->toHSL($red, $green, $blue);
return $hsl[3]/100;
}
/**
* @param string $color rgb color value
* @return float
*/
public function calculateLuma($color) {
list($red, $green, $blue) = $this->hexToRGB($color);
return (0.2126 * $red + 0.7152 * $green + 0.0722 * $blue) / 255;
}
/**
* @param string $color rgb color value
* @return int[]
*/
public function hexToRGB($color) {
$hex = preg_replace("/[^0-9A-Fa-f]/", '', $color);
if (strlen($hex) === 3) {
$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
}
if (strlen($hex) !== 6) {
return 0;
}
return [
hexdec(substr($hex, 0, 2)),
hexdec(substr($hex, 2, 2)),
hexdec(substr($hex, 4, 2))
];
}
/**
* @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(array('\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 = $this->appData->getFolder('images');
if ($folder !== null) {
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(array('\0', '/', '\\', '..'), '', $app);
$image = str_replace(array('\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',false);
$backgroundExists = true;
try {
$this->appData->getFolder('images')->getFile('background');
} catch (\Exception $e) {
$backgroundExists = false;
}
return $backgroundLogo && $backgroundLogo !== 'backgroundColor' && $backgroundExists;
}
}
|
