initial commit

appinfo/info.xml

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+<?xml version="1.0"?>
+<info xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
+      xsi:noNamespaceSchemaLocation="https://apps.nextcloud.com/schema/apps/info.xsd">
+    <id>pride</id>
+    <name>Pride</name>
+    <summary>Add pride flags to your nextcloud</summary>
+    <description><![CDATA[Diversity and inclusion are what makes the world worth living in! Let&#39;s show some pride!]]></description>
+    <version>0.1.0</version>
+    <licence>cnvpl</licence>
+    <author mail="" homepage="https://github.com/finallycoffee/nextcloud-pride"></author>
+    <namespace>Pride</namespace>
+    <category>customization</category>
+    <bugs>https://github.com/finallycoffee/nextcloud-pride/issues</bugs>
+    <dependencies>
+        <nextcloud min-version="26" max-version="28"/>
+    </dependencies>
+</info>

css/pride.css

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+.files-list__row-icon .folder-icon svg {
+	fill: url("#gradient-pride");
+}

js/pride.js

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+const flags = [
+	{
+		id: 'pride',
+		colors: ['#E04641', '#DE7E41', '#E4D56F', '#55B85F', '#2473B5', '#6F5DA5'],
+		transform: 'rotate(90)'
+	}, {
+		id: 'trans',
+		colors: ['#55CDFC', '#F7A8B8', '#FFFFFF', '#F7A8B8', '#55CDFC'],
+		transform: 'rotate(90)'
+	}
+];
+
+const generateGradient = colors => {
+	const steps = colors.length;
+	return colors.map((color, index) => { return [
+		[color, (index / steps)],
+		[color, (index + 1) / steps]
+	]}).flat();
+};
+
+const generateStops = (colors, opacity) => {
+	return generateGradient(colors).map(([color, offset]) => {
+		return `<stop stop-color="${color}" stop-opacity="${opacity}" offset="${offset * 100}%"></stop>`;
+	});
+};
+
+const makeLinearGradientSvg = (id, colors, opacity, transform) => {
+	return `<svg xmlns="http://www.w3.org/2000/svg" id="svg-${id}" preserveAspectRatio="none" width="100%" height="100%">
+		  <defs>
+		    <linearGradient id="gradient-${id}" gradientTransform="${transform}">
+		      ${generateStops(colors, opacity).join('\n')}
+		    </linearGradient>
+		  </defs>
+		  <style>
+		    rect { height: 100%; width: 100%; }
+		  </style>
+		  <rect fill="url(#gradient-${id})" width="100%" height="100%" />
+		</svg>`;
+};
+
+flags.forEach(flag => {
+	const svg_html = makeLinearGradientSvg(flag.id, flag.colors, flag.opacity ?? '0.8', flag.transform ?? 'rotate(0)');
+	const container = document.createElement('div');
+	container.classList.add('hidden-visually');
+	container.ariaHidden = true;
+	container.innerHTML = svg_html;
+	const style_c = document.createElement('style');
+	style_c.textContent = `
+	body {
+		--image-background-pride-${flag.id}: url('data:image/svg+xml;base64,${btoa(svg_html)}');
+	}
+	#app-navigation ul > li.active,
+	.button-vue--vue-primary,
+	.preview-card__header,
+	.profile__primary-action-button,
+	.app-navigation-entry.active {
+		background-image: var(--image-background-pride-trans) !important;
+	}
+	.material-design-icon__svg,
+	.checkbox-radio-switch svg {
+		fill: url(#gradient-trans);
+	}
+	`;
+	document.body.prepend(container);
+	document.head.prepend(style_c);
+});

lib/AppInfo/Application.php

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+<?php
+declare(strict_types=1);
+
+namespace OCA\Pride\AppInfo;
+
+use OCP\Util;
+use OCP\AppFramework\App;
+use OCP\AppFramework\Bootstrap\IBootContext;
+use OCP\AppFramework\Bootstrap\IBootstrap;
+use OCP\AppFramework\Bootstrap\IRegistrationContext;
+use OCP\IConfig;
+
+class Application extends App implements IBootstrap {
+	const APP_ID = 'pride';
+	public function __construct(array $urlParams = []) {
+		parent::__construct(self::APP_ID, $urlParams);
+	}
+
+	public function register(IRegistrationContext $ctx): void {
+		$config = \OC::$server->get(IConfig::class);
+	}
+
+	public function boot(IBootContext $ctx): void {
+		Util::addStyle(self::APP_ID, 'pride');
+		Util::addScript(self::APP_ID, 'pride');
+	}
+}