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nextcloud_server/apps/theming/lib/Themes/DefaultTheme.php
Ferdinand Thiessen eb282a6cee fix(theming): Conitionally disable blur filter for performance
Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>
2024-07-11 08:22:47 +02:00

232 lines
8.8 KiB
PHP

<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022 Joas Schilling <coding@schilljs.com>
*
* @author Joas Schilling <coding@schilljs.com>
* @author John Molakvoæ <skjnldsv@protonmail.com>
*
* @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\Themes;
use OC\AppFramework\Http\Request;
use OCA\Theming\ImageManager;
use OCA\Theming\ITheme;
use OCA\Theming\Service\BackgroundService;
use OCA\Theming\ThemingDefaults;
use OCA\Theming\Util;
use OCP\App\IAppManager;
use OCP\IConfig;
use OCP\IL10N;
use OCP\IRequest;
use OCP\IURLGenerator;
use OCP\IUserSession;
class DefaultTheme implements ITheme {
use CommonThemeTrait;
public string $defaultPrimaryColor;
public string $primaryColor;
public function __construct(
public Util $util,
public ThemingDefaults $themingDefaults,
public IUserSession $userSession,
public IURLGenerator $urlGenerator,
public ImageManager $imageManager,
public IConfig $config,
public IL10N $l,
public IAppManager $appManager,
private ?IRequest $request,
) {
$this->defaultPrimaryColor = $this->themingDefaults->getDefaultColorPrimary();
$this->primaryColor = $this->themingDefaults->getColorPrimary();
// Override primary colors (if set) to improve accessibility
if ($this->primaryColor === BackgroundService::DEFAULT_COLOR) {
$this->primaryColor = BackgroundService::DEFAULT_ACCESSIBLE_COLOR;
}
}
public function getId(): string {
return 'default';
}
public function getType(): int {
return ITheme::TYPE_THEME;
}
public function getTitle(): string {
return $this->l->t('System default theme');
}
public function getEnableLabel(): string {
return $this->l->t('Enable the system default');
}
public function getDescription(): string {
return $this->l->t('Using the default system appearance.');
}
public function getMediaQuery(): string {
return '';
}
public function getMeta(): array {
return [];
}
public function getCSSVariables(): array {
$colorMainText = '#222222';
$colorMainTextRgb = join(',', $this->util->hexToRGB($colorMainText));
// Color that still provides enough contrast for text, so we need a ratio of 4.5:1 on main background AND hover
$colorTextMaxcontrast = '#6b6b6b'; // 4.5 : 1 for hover background and background dark
$colorMainBackground = '#ffffff';
$colorMainBackgroundRGB = join(',', $this->util->hexToRGB($colorMainBackground));
$colorBoxShadow = $this->util->darken($colorMainBackground, 70);
$colorBoxShadowRGB = join(',', $this->util->hexToRGB($colorBoxShadow));
$colorError = '#DB0606';
$colorWarning = '#A37200';
$colorSuccess = '#2d7b41';
$colorInfo = '#0071ad';
$user = $this->userSession->getUser();
// Chromium based browsers currently (2024) have huge performance issues with blur filters
$isChromium = $this->request !== null && $this->request->isUserAgent([Request::USER_AGENT_CHROME, Request::USER_AGENT_MS_EDGE]);
// Ignore MacOS because they always have hardware accelartion
$isChromium = $isChromium && !$this->request->isUserAgent(['/Macintosh/']);
// Allow to force the blur filter
$forceEnableBlur = $user === null ? false : $this->config->getUserValue(
$user->getUID(),
'theming',
'force_enable_blur_filter',
);
$workingBlur = match($forceEnableBlur) {
'yes' => true,
'no' => false,
default => !$isChromium
};
$variables = [
'--color-main-background' => $colorMainBackground,
'--color-main-background-rgb' => $colorMainBackgroundRGB,
'--color-main-background-translucent' => 'rgba(var(--color-main-background-rgb), .97)',
'--color-main-background-blur' => 'rgba(var(--color-main-background-rgb), .8)',
'--filter-background-blur' => $workingBlur ? 'blur(25px)' : 'none',
// to use like this: background-image: linear-gradient(0, var('--gradient-main-background));
'--gradient-main-background' => 'var(--color-main-background) 0%, var(--color-main-background-translucent) 85%, transparent 100%',
// used for different active/hover/focus/disabled states
'--color-background-hover' => $this->util->darken($colorMainBackground, 4),
'--color-background-dark' => $this->util->darken($colorMainBackground, 7),
'--color-background-darker' => $this->util->darken($colorMainBackground, 14),
'--color-placeholder-light' => $this->util->darken($colorMainBackground, 10),
'--color-placeholder-dark' => $this->util->darken($colorMainBackground, 20),
// max contrast for WCAG compliance
'--color-main-text' => $colorMainText,
'--color-text-maxcontrast' => $colorTextMaxcontrast,
'--color-text-maxcontrast-default' => $colorTextMaxcontrast,
'--color-text-maxcontrast-background-blur' => $this->util->darken($colorTextMaxcontrast, 7),
'--color-text-light' => 'var(--color-main-text)', // deprecated
'--color-text-lighter' => 'var(--color-text-maxcontrast)', // deprecated
'--color-scrollbar' => 'rgba(' . $colorMainTextRgb . ', .15)',
// error/warning/success/info feedback colours
'--color-error' => $colorError,
'--color-error-rgb' => join(',', $this->util->hexToRGB($colorError)),
'--color-error-hover' => $this->util->mix($colorError, $colorMainBackground, 75),
'--color-error-text' => $this->util->darken($colorError, 5),
'--color-warning' => $colorWarning,
'--color-warning-rgb' => join(',', $this->util->hexToRGB($colorWarning)),
'--color-warning-hover' => $this->util->darken($colorWarning, 5),
'--color-warning-text' => $this->util->darken($colorWarning, 7),
'--color-success' => $colorSuccess,
'--color-success-rgb' => join(',', $this->util->hexToRGB($colorSuccess)),
'--color-success-hover' => $this->util->mix($colorSuccess, $colorMainBackground, 80),
'--color-success-text' => $this->util->darken($colorSuccess, 4),
'--color-info' => $colorInfo,
'--color-info-rgb' => join(',', $this->util->hexToRGB($colorInfo)),
'--color-info-hover' => $this->util->mix($colorInfo, $colorMainBackground, 80),
'--color-info-text' => $this->util->darken($colorInfo, 4),
'--color-favorite' => '#A37200',
// used for the icon loading animation
'--color-loading-light' => '#cccccc',
'--color-loading-dark' => '#444444',
'--color-box-shadow-rgb' => $colorBoxShadowRGB,
'--color-box-shadow' => "rgba(var(--color-box-shadow-rgb), 0.5)",
'--color-border' => $this->util->darken($colorMainBackground, 7),
'--color-border-dark' => $this->util->darken($colorMainBackground, 14),
'--color-border-maxcontrast' => $this->util->darken($colorMainBackground, 51),
'--font-face' => "system-ui, -apple-system, 'Segoe UI', Roboto, Oxygen-Sans, Cantarell, Ubuntu, 'Helvetica Neue', 'Noto Sans', 'Liberation Sans', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'",
'--default-font-size' => '15px',
// TODO: support "(prefers-reduced-motion)"
'--animation-quick' => '100ms',
'--animation-slow' => '300ms',
// Default variables --------------------------------------------
'--border-radius' => '3px',
'--border-radius-large' => '10px',
'--border-radius-rounded' => '28px',
// pill-style button, value is large so big buttons also have correct roundness
'--border-radius-pill' => '100px',
'--default-clickable-area' => '44px',
'--default-line-height' => '24px',
'--default-grid-baseline' => '4px',
// various structure data
'--header-height' => '50px',
'--navigation-width' => '300px',
'--sidebar-min-width' => '300px',
'--sidebar-max-width' => '500px',
'--list-min-width' => '200px',
'--list-max-width' => '300px',
'--header-menu-item-height' => '44px',
'--header-menu-profile-item-height' => '66px',
// mobile. Keep in sync with core/js/js.js
'--breakpoint-mobile' => '1024px',
'--background-invert-if-dark' => 'no',
'--background-invert-if-bright' => 'invert(100%)',
'--background-image-invert-if-bright' => 'no',
'--background-image-color-text' => '#ffffff',
];
// Primary variables
$variables = array_merge($variables, $this->generatePrimaryVariables($colorMainBackground, $colorMainText));
$variables = array_merge($variables, $this->generateGlobalBackgroundVariables());
$variables = array_merge($variables, $this->generateUserBackgroundVariables());
return $variables;
}
public function getCustomCss(): string {
return '';
}
}