README.md

react-lines-ellipsis

Poor man's multiline ellipsis component for React.JS https://xiaody.github.io/react-lines-ellipsis/

Installation

To install the stable version:

npm install --save react-lines-ellipsis

Usage

import LinesEllipsis from 'react-lines-ellipsis'

<LinesEllipsis
  text='long long text'
  maxLine='3'
  ellipsis='...'
  trimRight
  basedOn='letters'
/>

Options

props.text {String}

The text you want to clamp.

props.maxLine {Number|String}

Max count of lines allowed. Default 1.

props.ellipsis {Node}

Text content of the ellipsis. Default ….

props.trimRight {Boolean}

Trim right the clamped text to avoid putting the ellipsis on an empty line. Default true.

props.basedOn {String}

Split by letters or words. By default it uses a guess based on your text.

props.component {String}

The tagName of the rendered node. Default div.

props.onReflow {Function} (version >= 0.13.0)

Callback function invoked when the reflow logic complete.

Type: ({ clamped: boolean, text: string }) => any

  handleReflow = (rleState) => {
    const {
      clamped,
      text,
    } = rleState
    // do sth...
  }

  render() {
    const text = 'lorem text'
    return (
      <LinesEllipsis
        text={text}
        onReflow={this.handleReflow}
        maxLine={3}
      />
    )
  }

Methods

isClamped() {Boolean}

Is the text content clamped.

Limitations

• not clamps text on the server side or with JavaScript disabled
• only accepts plain text by default. Use lib/html.js for experimental rich html support
• can be fooled by some special styles: ::first-letter, ligatures, etc.
• requires modern browsers env

Experimental html truncation

Instead of props.text, use props.unsafeHTML to pass your content.

Also, props.ellipsis here only supports plain text, use props.ellipsisHTML is to fully customize the ellipsis style.

The props.onReflow gives you html instead of text.

props.trimRight is not supported by HTMLEllipsis.

import HTMLEllipsis from 'react-lines-ellipsis/lib/html'

<HTMLEllipsis
  unsafeHTML='simple html content'
  maxLine='5'
  ellipsis='...'
  basedOn='letters'
/>

Responsive to window resize and orientation change

import LinesEllipsis from 'react-lines-ellipsis'
import responsiveHOC from 'react-lines-ellipsis/lib/responsiveHOC'

const ResponsiveEllipsis = responsiveHOC()(LinesEllipsis)
// then just use ResponsiveEllipsis

Loose version

This is a non-standardized css-based solution for some webkit-based browsers. It may have better render performance but also can be fragile. Be sure to test your use case if you use it. See https://css-tricks.com/line-clampin/#article-header-id-0 for some introduction. Also, you may want to star and follow https://crbug.com/305376.

import LinesEllipsisLoose from 'react-lines-ellipsis/lib/loose'

<LinesEllipsisLoose
  text='long long text'
  maxLine='2'
  lineHeight='16'
/>

Common issues

I want 3 lines but the component sometimes gives me 4 lines.

Chances are your text rendering is unstable. Like you are using a web font whose chars are fatter, or the container width is set dynamically, or some words in the text are set dynamically, etc.

The component cuts too much / cuts nothing.

Check your CSS about word-break white-space, etc.

I have other issues

Please fill a issue with a stackblitz reproduction link.