feat(NcCounterBubble): add count prop and humanize output

Signed-off-by: Grigorii K. Shartsev <me@shgk.me>

src/components/NcCounterBubble/NcCounterBubble.vue

@@ -3,36 +3,186 @@
   - SPDX-License-Identifier: AGPL-3.0-or-later
 -->
 
- <docs>
+<docs>
 
-### Normal Counter
+### Default usage
 
-```
-<NcCounterBubble>314+</NcCounterBubble>
-```
+NcCounterBubble displays a number from the `count` prop in a bubble.
 
-### Outlined Counter (e.g team mentions)
+By default, the number is **humanized** according to Nextcloud user's locale setting. Humanization can be disabled via `raw` prop.
 
-```
-<NcCounterBubble type="outlined">314+</NcCounterBubble>
+```vue
+<template>
+	<table>
+		<tr>
+			<th>count</th>
+			<th>default</th>
+			<th>raw</th>
+		</tr>
+		<tr v-for="num in numbers" :key="num">
+			<td>{{ num }}</td>
+			<td>
+				<NcCounterBubble :count="num" />
+			</td>
+			<td>
+				<NcCounterBubble :count="num" raw />
+			</td>
+		</tr>
+	</table>
+</template>
+
+<script>
+export default {
+	setup() {
+		return {
+			numbers: [1, 9, 75, 450, 1042, 1750, 1999, 14567, 14567890, 2000000008],
+		}
+	},
+}
+</script>
+
+<style scoped>
+table {
+	border-collapse: collapse;
+}
+
+th,
+td {
+	border: 1px solid var(--color-border);
+	padding: var(--default-grid-baseline) calc(var(--default-grid-baseline) * 2);
+}
+
+th {
+	color: var(--color-text-maxcontrast);
+}
+</style>
 ```
 
-### Highlighted Counter (e.g direct mentions)
+### Styles
+
+Use different styles for different types of counters.
 
 ```
-<NcCounterBubble type="highlighted">314+</NcCounterBubble>
+<template>
+	<table>
+		<tr>
+			<th>type</th>
+			<th>counter</th>
+			<th>Usage example</th>
+		</tr>
+		<tr>
+			<td>'' (default)</td>
+			<td>
+				<NcCounterBubble :count="3" />
+			</td>
+			<td></td>
+		</tr>
+		<tr>
+			<td>outlined</td>
+			<td><NcCounterBubble :count="3" type="outlined" /></td>
+			<td>Team/group mentions</td>
+		</tr>
+		<tr>
+			<td>highlighted</td>
+			<td>
+				<NcCounterBubble :count="3" type="highlighted" />
+			</td>
+			<td>Direct mentions</td>
+		</tr>
+		<tr>
+			<td>outlined active</td>
+			<td class="active-like">
+				<NcCounterBubble :count="3" type="outlined" active />
+			</td>
+			<td>Same as "outlined", but in an "active" container</td>
+		</tr>
+		<tr>
+			<td>highlighted active</td>
+			<td class="active-like">
+				<NcCounterBubble :count="3" type="highlighted" active />
+			</td>
+			<td>Same as "highlighted", but in an "active" container</td>
+		</tr>
+	</table>
+</template>
+
+<style scoped>
+table {
+	border-collapse: collapse;
+}
+
+th,
+td {
+	border: 1px solid var(--color-border);
+	padding: var(--default-grid-baseline) calc(var(--default-grid-baseline) * 2);
+
+	&.active-like {
+		background-color: var(--color-primary-element);
+	}
+}
+
+th {
+	color: var(--color-text-maxcontrast);
+}
+</style>
 ```
 
-</docs>
+### Custom content (deprecated)
+
+You can use the default slot to pass any custom content. If you pass a plain number to the default slot, without raw prop it will be humanized like via `count` prop.
 
+**DEPRECATED:** passing count via slot content is **deprecated** and will be removed in the v9. Prefer using `count` prop for numbers or [NcChip](#/Components/NcChip) component for a custom content.
+
+```vue
 <template>
-	<div :class="counterClassObject"
-		class="counter-bubble__counter">
-		<slot />
-	</div>
+	<table>
+		<tr>
+			<th>content</th>
+			<th>default</th>
+			<th>raw</th>
+		</tr>
+		<tr v-for="num in numbers" :key="num">
+			<td>{{ num }}</td>
+			<td>
+				<NcCounterBubble>{{ num }}</NcCounterBubble>
+			</td>
+			<td>
+				<NcCounterBubble raw>{{ num }}</NcCounterBubble>
+			</td>
+		</tr>
+	</table>
 </template>
 
 <script>
+export default {
+	setup() {
+		return {
+			numbers: ['314+', '16 rows', '24564'],
+		}
+	},
+}
+</script>
+
+<style scoped>
+table {
+	border-collapse: collapse;
+}
+
+th,
+td {
+	border: 1px solid var(--color-border);
+	padding: var(--default-grid-baseline) calc(var(--default-grid-baseline) * 2);
+}
+
+th {
+	color: var(--color-text-maxcontrast);
+}
+</style>
+```
+</docs>
+
+<script>
+import { getCanonicalLocale } from '@nextcloud/l10n'
 
 export default {
 	name: 'NcCounterBubble',
@@ -42,7 +192,7 @@ export default {
 			type: String,
 			default: '',
 			validator(value) {
-				return ['highlighted', 'outlined', ''].indexOf(value) !== -1
+				return ['highlighted', 'outlined', ''].includes(value)
 			},
 		},
 
@@ -55,6 +205,25 @@ export default {
 			type: Boolean,
 			default: false,
 		},
+
+		/**
+		 * The count to display in the counter bubble.
+		 * Alternatively, you can pass any value to the default slot.
+		 */
+		count: {
+			type: Number,
+			required: false,
+			default: undefined,
+		},
+
+		/**
+		 * Disables humanization to display count or content as it is
+		 */
+		raw: {
+			type: Boolean,
+			required: false,
+			default: false,
+		},
 	},
 
 	computed: {
@@ -65,6 +234,57 @@ export default {
 				active: this.active,
 			}
 		},
+
+		humanizedCount() {
+			return this.humanizeCount(this.count)
+		},
+	},
+
+	methods: {
+		humanizeCount(count) {
+			if (this.raw) {
+				return count
+			}
+
+			const formatter = new Intl.NumberFormat(getCanonicalLocale(), {
+				notation: 'compact',
+				compactDisplay: 'short',
+			})
+
+			return formatter.format(count)
+		},
+
+		/**
+		 * Get the humanized count from `count` prop
+		 * @return {string | undefined}
+		 */
+		getHumanizedCount() {
+			// If we have count prop - just render from count
+			if (this.count !== undefined) {
+				return this.humanizedCount
+			}
+
+			// Raw value - render as it is
+			if (this.raw) {
+				return undefined
+			}
+
+			// If slot content is just a text with a number - process like count
+			if (this.$slots.default?.length === 1) {
+				const slotContent = this.$slots.default[0].text?.trim()
+				if (slotContent && /^\d+$/.test(slotContent)) {
+					const count = parseInt(slotContent, 10)
+					return this.humanizeCount(count)
+				}
+			}
+		},
+	},
+
+	render(h) {
+		return h('div', {
+			staticClass: 'counter-bubble__counter',
+			class: this.counterClassObject,
+		}, [this.getHumanizedCount() ?? this.$slots.default])
 	},
 }
 
@@ -73,13 +293,11 @@ export default {
 <style lang="scss" scoped>
 .counter-bubble__counter {
 	--counter-bubble-line-height: 1em;
-	font-size: calc(var(--default-font-size) * .8);
+	font-size: var(--font-size-small, 13px);
 	overflow: hidden;
 	width: fit-content;
-	max-width: var(--default-clickable-area);
 	min-width: calc(var(--counter-bubble-line-height) + 2 * var(--default-grid-baseline)); // Make it not narrower than a circle
 	text-align: center;
-	text-overflow: ellipsis;
 	line-height: var(--counter-bubble-line-height);
 	padding: var(--default-grid-baseline);
 	border-radius: var(--border-radius-pill);
@@ -107,6 +325,7 @@ export default {
 		background: transparent;
 		box-shadow: inset 0 0 0 2px;
 	}
+
 	&--outlined.active {
 		color: var(--color-main-background);
 		box-shadow: inset 0 0 0 2px;

tests/unit/components/NcCounterBubble/NcCounterBubble.spec.js

@@ -0,0 +1,68 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import { describe, it, expect } from '@jest/globals'
+import { mount } from '@vue/test-utils'
+import NcCounterBubble from '../../../../src/components/NcCounterBubble/NcCounterBubble.vue'
+
+describe('NcCounterBubble', () => {
+	describe('displaying count', () => {
+		it('should render count from prop', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { count: 314 } })
+			expect(wrapper.text()).toBe('314')
+		})
+
+		it('should render non-number content as it is', () => {
+			const wrapper = mount(NcCounterBubble, { slots: { default: '14 rows' } })
+			expect(wrapper.text()).toBe('14 rows')
+		})
+	})
+
+	describe('with humanization', () => {
+		it('should render count 1020 with humanization as "1K"', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { count: 1042 } })
+			expect(wrapper.text()).toBe('1K')
+		})
+
+		it('should not humanize with raw', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { count: 1042, raw: true } })
+			expect(wrapper.text()).toBe('1042')
+		})
+
+		it('should render slot content 1020 with humanization as "1K"', () => {
+			const wrapper = mount(NcCounterBubble, { slots: { default: '1042' } })
+			expect(wrapper.text()).toBe('1K')
+		})
+
+		it('should render slot content 1020 as it is with raw prop', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { raw: true }, slots: { default: '1042' } })
+			expect(wrapper.text()).toBe('1042')
+		})
+	})
+
+	describe('with styling', () => {
+		it('should not have any additional classes', () => {
+			const wrapper = mount(NcCounterBubble)
+			expect(wrapper.classes('counter-bubble__counter--highlighted')).toBeFalsy()
+			expect(wrapper.classes('counter-bubble__counter--outlined')).toBeFalsy()
+			expect(wrapper.classes('active')).toBeFalsy()
+		})
+
+		it('should have class "counter-bubble__counter--highlighted" when type="highlighted"', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { type: 'highlighted' } })
+			expect(wrapper.classes('counter-bubble__counter--highlighted')).toBeTruthy()
+		})
+
+		it('should have class "counter-bubble__counter--outlined" when type="outlined"', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { type: 'outlined' } })
+			expect(wrapper.classes('counter-bubble__counter--outlined')).toBeTruthy()
+		})
+
+		it('should have class "active" when active', () => {
+			const wrapper = mount(NcCounterBubble, { propsData: { active: true } })
+			expect(wrapper.classes('active')).toBeTruthy()
+		})
+	})
+})