c2n/web-componentsv1.0.18
OverviewGetting startedComponentsIconsGuidesExamples
OverviewGetting startedComponentsIconsGuidesExamples
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Copy Button

Button that copies text to the clipboard — the element it sits in, another element by id, or a literal string.

Attributes

NameTypeDefaultDescription
valuestring | undefinedundefinedLiteral text to copy. Takes precedence over for and over the parent element.
forstring | undefinedundefinedid of the element to copy, looked up in the containing document or shadow root. Overrides the parent element.
disabledbooleanfalseDisables the button: no pointer events, no focus, reduced opacity.
copiedbooleanfalseTrue for copied-duration after a successful copy. Reflected, so c2-copy-button[copied] is styleable.
copied-durationnumber2000How long the copied state lasts, in ms.
labelstringCopyAccessible name of the button while idle.
copied-labelstringCopiedAccessible name (and copied-label fallback) after a successful copy.
reveal'hover' | 'always'hover

hover (default) keeps the button transparent until the pointer is over its source, or keyboard focus lands inside it. always shows it permanently. A hover-only button still appears on keyboard focus and on devices with no hover at all.

The copied confirmation deliberately does not hold it on screen: once the pointer leaves, the button fades out with the check still on it and resets off-screen, so the icon never flips back to copy on a button the user has already walked away from.

pinCopyButtonPin | '' | undefinedundefined

Pins the button to a corner of its containing block, staying put while the source scrolls under it.

The bare attribute means top-right. The containing block must be positioned (position: relative on the element the button sits in), as with any absolutely positioned child.

Slots

NameDescription
(default)Optional label beside the icon. Empty by default, which gives an icon-only button.
copy-iconReplaces the default copy icon.
copied-iconReplaces the default check icon shown after a copy.
copied-labelReplaces the default slot's text while in the copied state.

Events

NameTypeDescription
copy-errorCustomEvent<{ error: unknown }>Fired when the clipboard write failed (denied permission, or no clipboard at all).
copiedCustomEvent<{ text: string }>Fired after the text reached the clipboard. detail.text is what was copied.

CSS parts

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

NameDescription
buttonThe native button that performs the copy action.
iconWrapper that switches between the copy and copied icons.

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-copy-button
--c2-copy-button--transition-durationtime150msFade of the hover reveal.
c2-copy-button > container
--c2-copy-button__container--background-colorcolor—
--c2-copy-button__container--colorcolorrgb(34, 34, 34)
--c2-copy-button__container--borderbordernone
--c2-copy-button__container--border-radiusborder-radius6px
--c2-copy-button__container--heightpixel28px
--c2-copy-button__container--min-widthpixel28px
--c2-copy-button__container--padding-leftpadding6px
--c2-copy-button__container--padding-rightpadding6px
--c2-copy-button__container--gappixel6px
--c2-copy-button__container--font-sizefont-size12px
--c2-copy-button__container--font-weightfont-weight500
--c2-copy-button__container--font-familyfont-family—
c2-copy-button > container > hover
--c2-copy-button__container__hover--background-colorcolorrgb(230, 230, 230)
--c2-copy-button__container__hover--colorcolor—
--c2-copy-button__container__hover--borderborder—
c2-copy-button > container > active
--c2-copy-button__container__active--background-colorcolorrgb(213, 213, 213)
c2-copy-button > container > focus
--c2-copy-button__container__focus--outlineoutline2px solid rgba(2, 101, 220, 0.4)
--c2-copy-button__container__focus--outline-offsetpixel2px
c2-copy-button > container > disabled
--c2-copy-button__container__disabled--opacityopacity0.38
c2-copy-button > container > copied
--c2-copy-button__container__copied--colorcolorrgb(0, 122, 77)Applied for copied-duration after a successful copy.
--c2-copy-button__container__copied--background-colorcolor—
--c2-copy-button__container__copied--borderborder—
c2-copy-button > icon
--c2-copy-button__icon--sizepixel16px
--c2-copy-button__icon--colorcolor—Defaults to the button's text colour.
c2-copy-button > icon > copied
--c2-copy-button__icon__copied--colorcolor—
c2-copy-button > pin
--c2-copy-button__pin--offset-xpixel6pxInset from the pinned corner, horizontally.
--c2-copy-button__pin--offset-ypixel6pxInset from the pinned corner, vertically.
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