react-aim

React Aim

Determine the cursor aim for triggering mouse events.

Demo

Try the demo here.

Installation

npm install react-aim --save

Usage

import React, { Component } from 'react';
import { target } from 'react-aim';

@target(
  {
    mouseEnter: (props, component) => {
      console.log('mouse enter');
    },
    mouseLeave: (props, component) => {
      console.log('mouse leave');
    },
    aimMove: (props, component, distance) => {
      console.log('aim move ' + Math.round(distance * 100)  + '%');
    },
    aimStart: (props, component, distance) => {
      console.log('aim start');
    },
    aimStop: (props, component) => {
      console.log('aim stop');
    }
  }
)
export default class extends Component {
  render() {
    return (
      <div/>
    );
  }
}

Submenu Example

Fire mouse events on menus and submenus that takes into account the user's cursor aim.

Menu

import React, { Component, PropTypes } from 'react';
import MenuItem from './path/to/menuItem';

export default class extends Component {
  render() {
    return (
        <ul>
          <Item name="item 1"/>
          <Item name="item 2"/>
          <Item name="item 3"/>
          <Item name="item 4"/>
          <Item name="item 5"/>
        </ul>
    );
  }
}

Menu Item

import React, { Component, PropTypes } from 'react';
import { source } from 'react-aim';
import Submenu from './path/to/submenu';

@source(
  {
    mouseEnter: (props, component) => component.setState({ over: true }),
    mouseLeave: (props, component) => component.setState({ over: false })
  }
)
export default class extends Component {
  constructor() {
    super();
    this.state = { over: false };
  }

  render() {
    let submenu;
    if (this.state.over) submenu = <Submenu ref="submenu"/>;

    return (
      <li>
        {this.props.name}
        {submenu}
      </li>
    );
  }
}

Submenu

import React, { Component, PropTypes } from 'react';
import { target } from 'react-aim';

@target()
export default class extends Component {
  render() {
    return (
      <ul>
        <li>item 1</li>
        <li>item 2</li>
        <li>item 3</li>
        <li>item 4</li>
        <li>item 5</li>
      </ul>
    );
  }
}