feat(NcHeaderButton): Add a button only alternative for the header menu

src/components/NcHeaderButton/NcHeaderButton.vue

@@ -0,0 +1,139 @@
+<!--
+  - SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<docs>
+This component is made to be used in the Nextcloud top header,
+similar to the NcHeaderMenu but to be used when only a trigger button is needed, e.g. when opening a dialog.
+
+```
+<template>
+	<div id="nextcloud-header">
+		<NcHeaderButton id="search-dialog"
+			aria-label="Search"
+			@click="showDialog = true">
+			<template #icon>
+				<Magnify />
+			</template>
+		</NcHeaderButton>
+
+		<NcDialog name="Search"
+			size="normal"
+			:open.sync="showDialog">
+			<NcTextField label="Search for files, comments, contacts…"
+				type="search"
+				:value.sync="query" />
+			<NcEmptyContent name="Search"
+				:description="query ? `No results for '${query}'` : 'Start typing to search'">
+				<template #icon>
+					<Magnify />
+				</template>
+			</NcEmptyContent>
+		</NcDialog>
+	</div>
+</template>
+<script>
+import Magnify from 'vue-material-design-icons/Magnify'
+
+export default {
+	components: {
+		Magnify,
+	},
+
+	data() {
+		return {
+			showDialog: false,
+			query: '',
+		}
+	},
+}
+</script>
+<style>
+#nextcloud-header {
+	display: flex;
+	justify-content: right;
+	background-color: var(--color-primary);
+	height: var(--header-height, 50px);
+	padding-right: 12px;
+}
+</style>
+```
+</docs>
+
+<template>
+	<!-- We need a wrapper for server styles to apply -->
+	<div :id="id" class="header-menu">
+		<NcButton type="tertiary-no-background"
+			class="header-menu__trigger"
+			:aria-label="ariaLabel"
+			:aria-describedby="descriptionId"
+			size="large"
+			@click.prevent="$emit('click', $event)">
+			<template #icon>
+				<!-- @slot Icon trigger slot. Make sure the svg path
+				is at least 16px. Usually mdi icon works at 20px -->
+				<slot name="icon" />
+			</template>
+		</NcButton>
+
+		<span v-if="description"
+			:id="descriptionId"
+			class="header-menu__description hidden-visually">
+			{{ description }}
+		</span>
+	</div>
+</template>
+
+<script>
+import GenRandomId from '../../utils/GenRandomId.js'
+import NcButton from '../NcButton/index.js'
+
+export default {
+	name: 'NcHeaderButton',
+
+	components: {
+		NcButton,
+	},
+
+	props: {
+		/**
+		 * Unique id for this menu
+		 */
+		id: {
+			type: String,
+			required: true,
+		},
+
+		/**
+		 * `aria-label` attribute of the button
+		 */
+		ariaLabel: {
+			type: String,
+			required: true,
+		},
+
+		/**
+		 * Additional visually hidden description text for the button
+		 */
+		description: {
+			type: String,
+			default: null,
+		},
+	},
+
+	emits: [
+		'click',
+	],
+
+	data() {
+		return {
+			descriptionId: GenRandomId(),
+		}
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+@import '../NcHeaderMenu/header-menu__trigger';
+</style>

src/components/NcHeaderButton/index.js

@@ -0,0 +1,6 @@
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+export { default } from './NcHeaderButton.vue'

src/components/NcHeaderMenu/NcHeaderMenu.vue

@@ -15,10 +15,13 @@ This component is made to be used in the Nextcloud top header.
 				<Magnify />
 			</template>
 			<div>
-				<input placeholder="Search for files, comments, contacts..." type="search" style="width: 99%;" />
+				<NcTextField label="Search for files, comments, contacts…"
+				style="padding-inline: 8px;"
+				type="search"
+				:value.sync="query" />
 				<NcEmptyContent
 					name="Search"
-					description="Start typing to search">
+					:description="query ? `No results for '${query}'` : 'Start typing to search'">
 					<template #icon>
 						<Magnify />
 					</template>
@@ -34,6 +37,11 @@ export default {
 	components: {
 		Magnify,
 	},
+	data() {
+		return {
+			query: '',
+		}
+	},
 }
 </script>
 <style>
@@ -328,33 +336,9 @@ export default {
 // Also used for menu top-right positioning
 $externalMargin: 8px;
 
-.header-menu {
-	position: relative;
-	width: var(--header-height);
-	height: var(--header-height);
-
-	#{&}__trigger {
-		--button-size: var(--header-height) !important;
-		height: var(--header-height);
-		opacity: .85;
-
-		// header is filled with primary or image background
-		filter: none !important;
-		color: var(--color-background-plain-text, var(--color-primary-text)) !important;
-
-		&:focus-visible {
-			outline: none !important;
-			box-shadow: none !important;
-		}
-	}
-
-	&--opened &__trigger,
-	&__trigger:hover,
-	&__trigger:focus,
-	&__trigger:active {
-		opacity: 1;
-	}
+@import './header-menu__trigger';
 
+.header-menu {
 	&__wrapper {
 		position: fixed;
 		z-index: 2000;
@@ -393,14 +377,4 @@ $externalMargin: 8px;
 		}
 	}
 }
-
-@media only screen and (max-width: $breakpoint-small-mobile) {
-	.header-menu {
-		width: var(--default-clickable-area);
-
-		#{&}__trigger {
-			--button-size: var(--default-clickable-area) !important;
-		}
-	}
-}
 </style>

src/components/NcHeaderMenu/header-menu__trigger.scss

@@ -0,0 +1,42 @@
+/*!
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+.header-menu {
+	position: relative;
+	width: var(--header-height);
+	height: var(--header-height);
+
+	#{&}__trigger {
+		--button-size: var(--header-height) !important;
+		height: var(--header-height);
+		opacity: .85;
+
+		// header is filled with primary or image background
+		filter: none !important;
+		color: var(--color-background-plain-text, var(--color-primary-text)) !important;
+
+		&:focus-visible {
+			outline: none !important;
+			box-shadow: none !important;
+		}
+	}
+
+	&--opened &__trigger,
+	&__trigger:hover,
+	&__trigger:focus,
+	&__trigger:active {
+		opacity: 1;
+	}
+}
+
+@media only screen and (max-width: $breakpoint-small-mobile) {
+	.header-menu {
+		width: var(--default-clickable-area);
+
+		#{&}__trigger {
+			--button-size: var(--default-clickable-area) !important;
+		}
+	}
+}

src/components/index.js

@@ -52,6 +52,7 @@ export { default as NcEllipsisedOption } from './NcEllipsisedOption/index.js'
 export { default as NcEmojiPicker } from './NcEmojiPicker/index.js'
 export { default as NcEmptyContent } from './NcEmptyContent/index.js'
 export { default as NcGuestContent } from './NcGuestContent/index.js'
+export { default as NcHeaderButton } from './NcHeaderButton/index.js'
 export { default as NcHeaderMenu } from './NcHeaderMenu/index.js'
 export { default as NcHighlight } from './NcHighlight/index.js'
 export { default as NcIconSvgWrapper } from './NcIconSvgWrapper/index.js'

styleguide.config.js

@@ -173,6 +173,7 @@ module.exports = async () => {
 					'src/components/NcContent/*.vue',
 					'src/components/NcDashboard*/*.vue',
 					'src/components/NcDialog*/*.vue',
+					'src/components/NcHeader*/*.vue',
 					'src/components/NcListItem*/*.vue',
 					'src/components/NcMultiselect*/*.vue',
 					'src/components/NcRichContenteditable/!(NcRichContenteditable).vue',
@@ -253,6 +254,12 @@ module.exports = async () => {
 							'src/components/NcTextArea/*.vue',
 						],
 					},
+					{
+						name: 'NcHeader',
+						components: [
+							'src/components/NcHeader*/*.vue',
+						],
+					},
 					{
 						name: 'NcListItems',
 						components: [