Highlight component for ReactJS

ReactJS component that help you highlight ranges of text and give you callbacks to detect user text selection.

Installation

  npm install highlightable

Features

• Pass ranges and the component will highlight the text for you
• Callback function that give you the start and end of the user highlited text
• Customisable renderRange function that allow you to add tooltip on the top of user selection for exemple
• Convert url string into link

Getting started

<Highlightable ranges={ranges}
               enabled={true}
               onTextHighlighted={onTextHighlightedCallback}
               id={uniqueId}
               onMouseOverHighlightedWord={onMouseOverHighlightedWordCallback}
               highlightStyle={{
                 backgroundColor: '#ffcc80'
               }}
               text={'text'}
/>

Props:

• ranges -> array: of Range objects (see Range object below).

• text -> string: the all text that the user can highlight.

• enabled -> bool: The user can't highlight text if false.

• onMouseOverHighlightedWord -> func: Callback function when the user mouse is over an highlighted text. (range) => {}

• onTextHighlighted -> func: Callback function when the user highlight new text. (range) => {}

• highlightStyle -> obj: Style of the text when the text is highlighted. or func: (range, charIndex) => {return style}

• style -> obj: The style of the main div container

• rangeRenderer -> func: Use this function to customise the render of the highlighted text. (currentRenderedNodes, currentRenderedRange, currentRenderedIndex, onMouseOverHighlightedWord) => {return node}

• nodeRenderer -> func: Use this function to customise the render of the nodes. (charIndex, range, text, url, isEmoji) => {return node}

Range object:

The range object attributes:

• start -> int: the index of the character where the range start.
• end -> int: the index of the character where the range stop.
• text -> string: the highlighted text.
• data -> object: extra data (the props of the highlight component)

Development

• npm run build - produces production version
• npm run dev - produces development version
• npm test - run the tests