feat: implement alt copy for versions chart

app/components/Package/VersionDistribution.vue

@@ -9,13 +9,16 @@ import {
   drawNpmxLogoAndTaglineWatermark,
 } from '~/composables/useChartWatermark'
 import TooltipApp from '~/components/Tooltip/App.vue'
+import { copyAltTextForVersionsBarChart } from '~/utils/charts'
 
 const props = defineProps<{
   packageName: string
   inModal?: boolean
 }>()
 
 const { accentColors, selectedAccentColor } = useAccentColor()
+const { copy, copied } = useClipboard()
+
 const colorMode = useColorMode()
 const resolvedMode = shallowRef<'light' | 'dark'>('light')
 const rootEl = shallowRef<HTMLElement | null>(null)
@@ -190,14 +193,14 @@ const chartConfig = computed<VueUiXyConfig>(() => {
           fullscreen: false,
           table: false,
           tooltip: false,
-          altCopy: false, // TODO: set to true to enable the alt copy feature
+          altCopy: true,
         },
         buttonTitles: {
           csv: $t('package.trends.download_file', { fileType: 'CSV' }),
           img: $t('package.trends.download_file', { fileType: 'PNG' }),
           svg: $t('package.trends.download_file', { fileType: 'SVG' }),
           annotator: $t('package.trends.toggle_annotator'),
-          altCopy: undefined, // TODO: set to proper translation key
+          altCopy: $t('package.trends.copy_alt.button_label'), // Do not make this text dependant on the `copied` variable, since this would re-render the component, which is undesirable if the minimap was used to select a time frame.
         },
         callbacks: {
           img: args => {
@@ -230,10 +233,19 @@ const chartConfig = computed<VueUiXyConfig>(() => {
             loadFile(url, buildExportFilename('svg'))
             URL.revokeObjectURL(url)
           },
-          // altCopy: ({ dataset: dst, config: cfg }: { dataset: Array<VueUiXyDatasetItem>; config: VueUiXyConfig}) => {
-          //   // TODO: implement a reusable copy-alt-text-to-clipboard feature based on the dataset & configuration
-          //   console.log({ dst, cfg})
-          // }
+          altCopy: ({ dataset: dst, config: cfg }) =>
+            copyAltTextForVersionsBarChart({
+              dataset: dst,
+              config: {
+                ...cfg,
+                datapointLabels: xAxisLabels.value,
+                dateRangeLabel: dateRangeLabel.value,
+                semverGroupingMode: groupingMode.value,
+                copy,
+                $t,
+                numberFormatter: compactNumberFormatter.value.format,
+              },
+            }),
         },
       },
       grid: {
@@ -575,6 +587,16 @@ const chartConfig = computed<VueUiXyConfig>(() => {
                 aria-hidden="true"
               />
             </template>
+            <template #optionAltCopy>
+              <span
+                class="w-6 h-6"
+                :class="
+                  copied ? 'i-lucide:check text-accent' : 'i-lucide:person-standing text-fg-subtle'
+                "
+                style="pointer-events: none"
+                aria-hidden="true"
+              />
+            </template>
           </VueUiXy>
         </div>
 

app/utils/charts.ts

@@ -1,4 +1,9 @@
-import type { AltCopyArgs, VueUiXyConfig, VueUiXyDatasetLineItem } from 'vue-data-ui'
+import type {
+  AltCopyArgs,
+  VueUiXyConfig,
+  VueUiXyDatasetBarItem,
+  VueUiXyDatasetLineItem,
+} from 'vue-data-ui'
 import type { ChartTimeGranularity } from '~/types/chart'
 
 export function sum(numbers: number[]): number {
@@ -413,6 +418,11 @@ export type TrendLineDataset = {
   [key: string]: unknown
 } | null
 
+export type VersionsBarDataset = {
+  bars: VueUiXyDatasetBarItem[]
+  [key: string]: unknown
+} | null
+
 export type TrendTranslateKey = number | 'package.trends.y_axis_label' | (string & {})
 
 export type TrendTranslateFunction = {
@@ -431,6 +441,12 @@ export type TrendLineConfig = VueUiXyConfig & {
   numberFormatter: (value: number) => string
 }
 
+export type VersionsBarConfig = Omit<
+  TrendLineConfig,
+  'formattedDates' | 'hasEstimation' | 'formattedDatasetValues' | 'granularity'
+> & { datapointLabels: string[]; dateRangeLabel: string; semverGroupingMode: string }
+
+// Used for TrendsChart.vue
 export function createAltTextForTrendLineChart({
   dataset,
   config,
@@ -519,3 +535,62 @@ export async function copyAltTextForTrendLineChart({
   const altText = createAltTextForTrendLineChart({ dataset, config })
   await config.copy(altText)
 }
+
+// Used for VersionDistribution.vue
+export function createAltTextForVersionsBarChart({
+  dataset,
+  config,
+}: AltCopyArgs<VersionsBarDataset, VersionsBarConfig>) {
+  if (!dataset) return ''
+
+  const series = dataset.bars[0]?.series ?? []
+  const versions = series.map((value, i) => ({
+    name: config.datapointLabels[i] ?? '-',
+    rawDownloads: value ?? 0,
+    downloads: config.numberFormatter(value ?? 0),
+  }))
+
+  const versionWithMaxDownloads =
+    versions.length > 0
+      ? versions.reduce((max, current) => (current.rawDownloads > max.rawDownloads ? current : max))
+      : undefined
+
+  const per_version_analysis = versions
+    ?.toReversed()
+    .filter(v => v.name !== versionWithMaxDownloads?.name)
+    .map(v =>
+      config.$t(`package.versions.copy_alt.per_version_analysis`, {
+        version: v?.name ?? '-',
+        downloads: v?.downloads ?? '-',
+      }),
+    )
+    .join(', ')
+
+  const semver_grouping_mode =
+    config.semverGroupingMode === 'major'
+      ? config.$t('package.versions.grouping_major')
+      : config.$t('package.versions.grouping_minor')
+
+  const altText = `${config.$t('package.versions.copy_alt.general_description', {
+    package_name: dataset?.bars[0]?.name ?? '-',
+    versions_count: versions?.length ?? '0',
+    semver_grouping_mode: semver_grouping_mode.toLocaleLowerCase(),
+    first_version: versions?.[0]?.name ?? '-',
+    last_version: versions?.at(-1)?.name ?? '-',
+    date_range_label: config.dateRangeLabel ?? '-',
+    max_downloaded_version: versionWithMaxDownloads?.name ?? '-',
+    max_version_downloads: versionWithMaxDownloads?.downloads ?? '-',
+    per_version_analysis,
+    watermark: config.$t('package.trends.copy_alt.watermark'),
+  })}`
+
+  return altText
+}
+
+export async function copyAltTextForVersionsBarChart({
+  dataset,
+  config,
+}: AltCopyArgs<VersionsBarDataset, VersionsBarConfig>) {
+  const altText = createAltTextForVersionsBarChart({ dataset, config })
+  await config.copy(altText)
+}

i18n/locales/en.json

@@ -312,7 +312,11 @@
       "filter_help": "Semver range filter help",
       "filter_tooltip": "Filter versions using a {link}. For example, ^3.0.0 shows all 3.x versions.",
       "filter_tooltip_link": "semver range",
-      "no_matches": "No versions match this range"
+      "no_matches": "No versions match this range",
+      "copy_alt": {
+        "per_version_analysis": "{version} version was downloaded {downloads} times",
+        "general_description": "Bar chart showing per-version downloads for {versions_count} {semver_grouping_mode} versions of the {package_name} package, {date_range_label} from the {first_version} version to the {last_version} version. The most downloaded version is {max_downloaded_version} with {max_version_downloads} downloads. {per_version_analysis} {watermark}."
+      }
     },
     "dependencies": {
       "title": "Dependency ({count}) | Dependencies ({count})",

i18n/locales/fr-FR.json

@@ -312,7 +312,11 @@
       "filter_help": "Infos sur le filtre de plage semver",
       "filter_tooltip": "Filtrer les versions avec une {link}. Par exemple, ^3.0.0 affiche toutes les versions 3.x.",
       "filter_tooltip_link": "plage semver",
-      "no_matches": "Aucune version ne correspond à cette plage"
+      "no_matches": "Aucune version ne correspond à cette plage",
+      "copy_alt": {
+        "per_version_analysis": "La version {version} a été téléchargée {downloads} fois",
+        "general_description": "Graphique en barres montrant les téléchargements par version pour {versions_count} versions {semver_grouping_mode} du paquet {package_name}, {date_range_label} de la version {first_version} à la version {last_version}. La version la plus téléchargée est {max_downloaded_version} avec {max_version_downloads} téléchargements. {per_version_analysis} {watermark}."
+      }
     },
     "dependencies": {
       "title": "Dépendances ({count})",

i18n/schema.json

@@ -942,6 +942,18 @@
             },
             "no_matches": {
               "type": "string"
+            },
+            "copy_alt": {
+              "type": "object",
+              "properties": {
+                "per_version_analysis": {
+                  "type": "string"
+                },
+                "general_description": {
+                  "type": "string"
+                }
+              },
+              "additionalProperties": false
             }
           },
           "additionalProperties": false

lunaria/files/en-GB.json

@@ -311,7 +311,11 @@
       "filter_help": "Semver range filter help",
       "filter_tooltip": "Filter versions using a {link}. For example, ^3.0.0 shows all 3.x versions.",
       "filter_tooltip_link": "semver range",
-      "no_matches": "No versions match this range"
+      "no_matches": "No versions match this range",
+      "copy_alt": {
+        "per_version_analysis": "{version} version was downloaded {downloads} times",
+        "general_description": "Bar chart showing per-version downloads for {versions_count} {semver_grouping_mode} versions of the {package_name} package, {date_range_label} from the {first_version} version to the {last_version} version. The most downloaded version is {max_downloaded_version} with {max_version_downloads} downloads. {per_version_analysis} {watermark}."
+      }
     },
     "dependencies": {
       "title": "Dependency ({count}) | Dependencies ({count})",

lunaria/files/en-US.json

@@ -311,7 +311,11 @@
       "filter_help": "Semver range filter help",
       "filter_tooltip": "Filter versions using a {link}. For example, ^3.0.0 shows all 3.x versions.",
       "filter_tooltip_link": "semver range",
-      "no_matches": "No versions match this range"
+      "no_matches": "No versions match this range",
+      "copy_alt": {
+        "per_version_analysis": "{version} version was downloaded {downloads} times",
+        "general_description": "Bar chart showing per-version downloads for {versions_count} {semver_grouping_mode} versions of the {package_name} package, {date_range_label} from the {first_version} version to the {last_version} version. The most downloaded version is {max_downloaded_version} with {max_version_downloads} downloads. {per_version_analysis} {watermark}."
+      }
     },
     "dependencies": {
       "title": "Dependency ({count}) | Dependencies ({count})",

lunaria/files/fr-FR.json

@@ -311,7 +311,11 @@
       "filter_help": "Infos sur le filtre de plage semver",
       "filter_tooltip": "Filtrer les versions avec une {link}. Par exemple, ^3.0.0 affiche toutes les versions 3.x.",
       "filter_tooltip_link": "plage semver",
-      "no_matches": "Aucune version ne correspond à cette plage"
+      "no_matches": "Aucune version ne correspond à cette plage",
+      "copy_alt": {
+        "per_version_analysis": "La version {version} a été téléchargée {downloads} fois",
+        "general_description": "Graphique en barres montrant les téléchargements par version pour {versions_count} versions {semver_grouping_mode} du paquet {package_name}, {date_range_label} de la version {first_version} à la version {last_version}. La version la plus téléchargée est {max_downloaded_version} avec {max_version_downloads} téléchargements. {per_version_analysis} {watermark}."
+      }
     },
     "dependencies": {
       "title": "Dépendances ({count})",