src/App.vue

@@ -1,5 +1,6 @@
 <template>
-	<ready :class="{'is-touch': isTouch}">
+	<ready>
+		<div :class="{'is-touch': isTouch}">
 		<div :class="{'is-hidden': !online}">
 			<template v-if="authUser">
 				<top-navigation/>
@@ -15,6 +16,7 @@
 		<transition name="fade">
 			<keyboard-shortcuts v-if="keyboardShortcutsActive"/>
 		</transition>
+		</div>
 	</ready>
 </template>
 

src/components/base/BaseButton.vue

@@ -0,0 +1,118 @@
+<template>
+	<component
+		:is="componentNodeName"
+		class="base-button"
+		:class="{ 'base-button--type-button': isButton }"
+		v-bind="elementBindings"
+		:disabled="disabled || undefined"
+	>
+		<slot />
+	</component>
+</template>
+
+<script lang="ts">
+// see https://v3.vuejs.org/api/sfc-script-setup.html#usage-alongside-normal-script
+export default {
+  inheritAttrs: false,
+}
+</script>
+
+<script lang="ts" setup>
+// this component removes styling differences between links / vue-router links and button elements
+// by doing so we make it easy abstract the functionality from style and enable easier and semantic
+// correct button and link usage. Also see: https://css-tricks.com/a-complete-guide-to-links-and-buttons/#accessibility-considerations
+
+// the component tries to heuristically determine what it should be checking the props (see the
+// componentNodeName and elementBindings ref for this).
+
+// NOTE: Do NOT use buttons with @click to push routes. => Use router-links instead!
+
+import { ref, watchEffect, computed, useAttrs, PropType } from 'vue'
+
+const BASE_BUTTON_TYPES_MAP =  Object.freeze({
+  button: 'button',
+  submit: 'submit',
+})
+
+type BaseButtonTypes = keyof typeof BASE_BUTTON_TYPES_MAP
+
+const props = defineProps({
+	type: {
+		type: String as PropType<BaseButtonTypes>,
+		default: 'button',
+	},
+	disabled: {
+		type: Boolean,
+		default: false,
+	},
+})
+
+
+const componentNodeName = ref<Node['nodeName']>('button')
+interface ElementBindings {
+	type?: string;
+	rel?: string,
+}
+
+const elementBindings = ref({})
+
+const attrs = useAttrs()
+watchEffect(() => {
+	// by default this component is a button element with the attribute of the type "button" (default prop value)
+	let nodeName = 'button'
+	let bindings: ElementBindings = {type: props.type}
+
+	// if we find a "to" prop we set it as router-link
+	if ('to' in attrs) {
+		nodeName = 'router-link'
+		bindings = {}
+	}
+
+	// if there is a href we assume the user wants an external link via a link element
+	// we also set the attribute rel to "noopener" but make it possible to overwrite this by the user.
+	if ('href' in attrs) {
+		nodeName = 'a'
+		bindings = {rel: 'noopener'}
+	}
+
+	componentNodeName.value = nodeName
+	elementBindings.value = {
+		...bindings,
+		...attrs,
+	}
+})
+
+const isButton = computed(() => componentNodeName.value === 'button')
+</script>
+
+<style lang="scss">
+// NOTE: we do not use scoped styles to reduce specifity and make it easy to overwrite
+
+// We reset the default styles of a button element to enable easier styling
+:where(.base-button--type-button) {
+	border: 0;
+	margin: 0;
+	padding: 0;
+	text-decoration: none;
+	background-color: transparent;
+	text-align: center;
+	appearance: none;
+}
+
+:where(.base-button) {
+	cursor: pointer;
+	display: block;
+	color: inherit;
+	font: inherit;
+	user-select: none;
+	pointer-events: auto; // disable possible resets
+
+	&:focus {
+		outline: transparent;
+	}
+
+	&[disabled] {
+		cursor: default;
+	}
+}
+</style>

src/components/input/button.vue

@@ -1,79 +1,64 @@
 <template>
-	<a
+	<BaseButton
 		class="button"
-		:class="{
-			'is-loading': loading,
-			'has-no-shadow': !shadow,
-			'is-primary': type === 'primary',
-			'is-outlined': type === 'secondary',
-			'is-text is-inverted has-no-shadow underline-none':
-				type === 'tertary',
-		}"
-		:disabled="disabled || null"
-		@click="click"
-		:href="href !== '' ? href : null"
+		:class="[
+			variantClass,
+			{
+				'is-loading': loading,
+				'has-no-shadow': !shadow || variant === 'tertiary',
+			}
+		]"
 	>
 		<icon :icon="icon" v-if="showIconOnly"/>
 		<span class="icon is-small" v-else-if="icon !== ''">
 			<icon :icon="icon"/>
 		</span>
-		<slot></slot>
-	</a>
+		<slot />
+	</BaseButton>
 </template>
 
-<script>
+<script lang="ts">
 export default {
 	name: 'x-button',
-	props: {
-		type: {
-			type: String,
-			default: 'primary',
-		},
-		href: {
-			type: String,
-			default: '',
-		},
-		to: {
-			default: false,
-		},
-		icon: {
-			default: '',
-		},
-		loading: {
-			type: Boolean,
-			default: false,
-		},
-		shadow: {
-			type: Boolean,
-			default: true,
-		},
-		disabled: {
-			type: Boolean,
-			default: false,
-		},
-	},
-	emits: ['click'],
-	computed: {
-		showIconOnly() {
-			return this.icon !== '' && typeof this.$slots.default === 'undefined'
-		},
-	},
-	methods: {
-		click(e) {
-			if (this.disabled) {
-				return
-			}
-
-			if (this.to !== false) {
-				this.$router.push(this.to)
-			}
-
-			this.$emit('click', e)
-		},
-	},
 }
 </script>
 
+<script setup lang="ts">
+import {computed, useSlots, PropType} from 'vue'
+import BaseButton from '@/components/base/BaseButton.vue'
+
+const BUTTON_TYPES_MAP =  Object.freeze({
+  primary: 'is-primary',
+  secondary: 'is-outlined',
+  tertiary: 'is-text is-inverted underline-none',
+})
+
+type ButtonTypes = keyof typeof BUTTON_TYPES_MAP
+
+const props = defineProps({
+	variant: {
+		type: String as PropType<ButtonTypes>,
+		default: 'primary',
+	},
+	icon: {
+		default: '',
+	},
+	loading: {
+		type: Boolean,
+		default: false,
+	},
+	shadow: {
+		type: Boolean,
+		default: true,
+	},
+})
+
+const variantClass = computed(() => BUTTON_TYPES_MAP[props.variant])
+
+const slots = useSlots()
+const showIconOnly = computed(() => props.icon !== '' && typeof slots.default === 'undefined')
+</script>
+
 <style lang="scss" scoped>
 .button {
   transition: all $transition;
@@ -83,8 +68,8 @@ export default {
   font-weight: bold;
   height: $button-height;
   box-shadow: var(--shadow-sm);
+  display: inline-flex;
 
-  &.is-hovered,
   &:hover {
     box-shadow: var(--shadow-md);
   }
@@ -106,9 +91,10 @@ export default {
     color: var(--white);
   }
 
-  &.is-small {
-    border-radius: $radius;
-  }
+}
+
+.is-small {
+	border-radius: $radius;
 }
 
 .underline-none {

src/main.ts

@@ -1,11 +1,8 @@
 import {createApp, configureCompat} from 'vue'
 
+// default everything to Vue 3 behavior
 configureCompat({
-	COMPONENT_V_MODEL: false,
-	COMPONENT_ASYNC: false,
-	RENDER_FUNCTION: false,
-	WATCH_ARRAY: false, // TODO: check this again; this might lead to some problemes
-	TRANSITION_GROUP_ROOT: false,
+	MODE: 3,
 })
 
 import App from './App.vue'