c2n/web-componentsv1.0.18
OverviewGetting startedComponentsIconsGuidesExamples
OverviewGetting startedComponentsIconsGuidesExamples
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Distribution Bar

One 100% stacked bar of a breakdown, with a legend of shares and the hovered part brought forward.

Attributes

NameTypeDefaultDescription
itemsDistributionItem[][]The breakdown, { label, value, color?, key? } in any unit. Accepts a JSON string as an attribute.
labelstring—Label when the default slot is empty.
sort'none' | 'descending'noneOrders the parts largest first; none (the default) keeps the order given.
max-itemsnumber0Most parts drawn; past it, the smallest items are summed into one "Other" part. 0 (the default) draws every item.
legend-content'percent' | 'value' | 'both'percentWhat each legend entry shows after its label: its percent share (the default), its value, or both.
precisionnumber1Most decimal places of a share. A share too small to show at it reads "<0.1%".
interactivebooleanfalseMakes the legend entries buttons and the segments clickable, both firing item-click.

Slots

NameDescription
(default)Label shown above the bar; also its accessible name. Falls back to the label attribute.
header-endContent at the end of the label row, such as a total or a link.

Events

NameTypeDescription
item-clickCustomEvent<DistributionItemClickDetail>Fired with interactive when a segment or a legend entry is activated. detail is the part: its key, label, value and share, and for "Other" the items it sums. Does not bubble.

CSS parts

Shadow DOM styling hooks used with ::part(name). Prefer CSS custom properties when they cover the change.

NameDescription
headerRow holding the label and the header-end slot.
labelContainer of the label.
barThe bar; carries role="img" unless interactive.
segmentEach part's segment of the bar.
tooltipBubble over the bar naming the hovered part.
legendList of the parts under the bar.
legend-itemOne entry of the legend; a button with interactive.
swatchColour mark of a legend entry.

CSS custom properties

Grouped by semantic target and state from --c2-<component>__<target>__<state>--<property>. Click a group to collapse it; click a name to copy it.

NameTypeDefaultDescription
c2-distribution-bar
--c2-distribution-bar--widthpixel100%Width of the bar; the host is a block.
--c2-distribution-bar--gappixel8pxSpace between the header, the bar and the legend.
--c2-distribution-bar--transition-durationtime150msHow long dimming and resizing take.
c2-distribution-bar > bar
--c2-distribution-bar__bar--heightpixel8px
--c2-distribution-bar__bar--border-radiusborder-radius999pxRounds the ends of the bar.
--c2-distribution-bar__bar--background-colorcolor#e4e4e7Colour of the empty bar, when nothing has a value.
c2-distribution-bar > segment
--c2-distribution-bar__segment--gappixel2pxSpace between two segments.
--c2-distribution-bar__segment--min-widthpixel2pxNarrowest a segment gets, so a tiny share stays visible.
c2-distribution-bar > segment > dimmed
--c2-distribution-bar__segment__dimmed--opacityopacity0.35Opacity of the other parts while one is hovered or focused.
c2-distribution-bar > segment-1
--c2-distribution-bar__segment-1--colorcolor#0265dcFill of the 1st, 9th, 17th… part without a color. The eight follow the theme's chart series.
c2-distribution-bar > segment-2
--c2-distribution-bar__segment-2--colorcolor#ea580c
c2-distribution-bar > segment-3
--c2-distribution-bar__segment-3--colorcolor#0f766e
c2-distribution-bar > segment-4
--c2-distribution-bar__segment-4--colorcolor#db2777
c2-distribution-bar > segment-5
--c2-distribution-bar__segment-5--colorcolor#a16207
c2-distribution-bar > segment-6
--c2-distribution-bar__segment-6--colorcolor#7c3aed
c2-distribution-bar > segment-7
--c2-distribution-bar__segment-7--colorcolor#0891b2
c2-distribution-bar > segment-8
--c2-distribution-bar__segment-8--colorcolor#52525b
c2-distribution-bar > other
--c2-distribution-bar__other--colorcolor#a1a1aaFill of the "Other" part.
c2-distribution-bar > label
--c2-distribution-bar__label--colorcolor#18181b
--c2-distribution-bar__label--font-sizefont-size14px
--c2-distribution-bar__label--font-weightfont-weight600
c2-distribution-bar > legend
--c2-distribution-bar__legend--displaydisplayflexnone hides the legend; the bar still names every part to a screen reader.
--c2-distribution-bar__legend--row-gappixel4pxSpace between two rows of legend entries.
--c2-distribution-bar__legend--column-gappixel16pxSpace between two legend entries on a row.
--c2-distribution-bar__legend--colorcolor#18181bColour of a legend entry's label.
--c2-distribution-bar__legend--font-sizefont-size12px
c2-distribution-bar > legend-value
--c2-distribution-bar__legend-value--colorcolor#71717aColour of a legend entry's share or value.
c2-distribution-bar > swatch
--c2-distribution-bar__swatch--sizepixel8px
--c2-distribution-bar__swatch--border-radiusborder-radius999px
c2-distribution-bar > legend-item
--c2-distribution-bar__legend-item--border-radiusborder-radius4pxCorners of the focus ring and hover fill of an interactive legend entry.
c2-distribution-bar > legend-item > focus
--c2-distribution-bar__legend-item__focus--outlineoutline2px solid rgba(2, 101, 220, 0.4)Focus ring of an interactive legend entry.
c2-distribution-bar > legend-item > hover
--c2-distribution-bar__legend-item__hover--background-colorcolor#f4f4f5Fill behind an interactive legend entry under the pointer.
c2-distribution-bar > tooltip
--c2-distribution-bar__tooltip--background-colorcolor#18181b
--c2-distribution-bar__tooltip--colorcolor#fafafa
--c2-distribution-bar__tooltip--font-sizefont-size12px
--c2-distribution-bar__tooltip--paddingpadding4px 8px
--c2-distribution-bar__tooltip--border-radiusborder-radius6px
--c2-distribution-bar__tooltip--box-shadowbox-shadow0 8px 24px rgba(24, 24, 27, 0.08)
--c2-distribution-bar__tooltip--displaydisplayblocknone turns the hover bubble off; the hovered part is still brought forward.

Text and languages

The text the component shows, in English. It shows another language when the app adds one with addTranslations, under distribution-bar, and the nearest lang asks for it; any message not translated stays in English. {0}, {1}… stand for the values a message carries. Languages guide.

KeyEnglishValues
labelDistribution—
otherOther—
emptyNo data—
summary{0}: {1}{0} name
{1} parts
part{0} {1}{0} label
{1} share
both{0} · {1}{0} share
{1} value
below<{0}{0} smallest
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slots, used on its own or as the option of list and select.Data displayLoading OverlayCovers a region while it loads: the content stays in place, dimmed and blocked, with a spinner and an announced label.FeedbackLog ViewerExplore large logs with variable-height virtual scrolling and sticky tabular attributes.Editors & viewersMap chartA choropleth and point map on vector outlines, drawn by ECharts: regions shaded by a value, with layers of sized points and flow lines, on the bundled world and US maps or your own GeoJSON, TopoJSON or SVG.ChartMarkdownSafe markdown renderer that streams: chat answers and READMEs, with code, math and diagrams.ChatMarkerAn inline marker that highlights, underlines, strikes through, boxes or circles a run of text.Data displayMask InputA text input that fits what is typed to a pattern, for postcodes, IBANs, tax IDs, expiry dates and other fixed formats.InputsMasonryAutomatically pack differently sized dashboard tiles, then move or resize them in edit 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auto-refresh.InputsTime Slot PickerPick a free time from someone's calendar: a row of days, then that day's times grouped into morning, afternoon and evening.InputsTimelineA vertical sequence of dated events on a connected rail: order history, activity feeds, changelogs.Data displayToastNotification cards and a manager for stacked, queued notifications with independent lifetimes.FeedbackTodo ListA to-do list with the feel of paper: hand-drawn ticks, notes, highlighters, swipe and drag, and a remembered look.PlanningToggletipA small ⓘ button that opens a help bubble on click or tap; the bubble can hold links and is announced to screen readers.FeedbackTooltipContextual hint shown when its target is hovered or focused, rendered in the top layer.FeedbackTourA guided product tour that spotlights one element at a time and explains it in a panel beside it.FeedbackTrace WaterfallShow the spans of a distributed trace as a tree, each with a duration bar on one shared time axis.Data displayTreeHierarchical tree view with expansion, selection, checkboxes and lazy loading.Data displayTree SelectA dropdown for picking one or several rows from a hierarchy, with checkboxes, search and a form value.InputsTreemap chartA whole split into nested rectangles, each sized by its value: market maps, budgets and disk usage.ChartTruncateClamps text to a number of lines, with an optional Show more button.Data displayUploadDrag-and-drop file selection with validation, upload progress, retry, cancellation, and attachment results.InputsView OptionsThe Display popover of a collection: layout, grouping, ordering on several levels, Show switches and visible properties, reported as one plain value.InputsVirtual ListWindowed list with built-in search, sorting, selection and an async data source.Data displayVisually HiddenText for screen readers only: kept in the accessibility tree, drawn nowhere, optionally shown while it holds focus.LayoutWaterfall chartA running total bridged by the steps that move it, where one row is one step and totals mark where the bridge lands.ChartWeek PlannerWeekly schedule with time blocks: a typical week with optional odd and even weeks, or a dated week the user edits.PlanningWorking IndicatorA live "work in progress" line: animated mark, shimmering label, trailing dots and elapsed time.FeedbackFeather Icons287 open-source Feather icons, one web component each.IconsMat Icon2,234 Material Icons ligatures rendered through a single element.IconsPhosphor Icons1,512 flexible icons in six weights, one web component each.IconsSymbols157 themeable spot illustrations for empty states, status panels, onboarding and error pages.IconsTask icons191 duotone icons for to-do items: work, home, health, sport, learning, food, money, travel and more.IconsThemingTheme every c2n component from a handful of design tokens with @c2n/theme, or reach for any component variable directly.GuideLanguagesComponents show their text in English; add your app’s languages as one JSON object, picked by the nearest lang.GuideFrameworksUse the components from React, Vue, Angular, Svelte, Lit or plain HTML — typed events, generated template types, and the one piece of configuration each framework needs.GuideUsing c2n in an applicationThe workflow behind every c2n app: load the theme once, use c2-* tags directly, and turn every repeated pattern into a small variant or composed component.GuideAI toolsGive Claude Code, Codex, Google Antigravity or GitHub Copilot the c2n skill, live component APIs, examples and application conventions.GuideNo components match.
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