feat(interaction): emit legend filter

[pearmini]

Legend Filter

触发交互

chart.emit('legend:filter', {
  data: { channel: 'color', values: ['Sports', 'Strategy'] },
});

chart.emit('legend:end', {});

获得数据

chart.on('legend:filter', (e) => {
  const { nativeEvent, data } = e;
  if (!nativeEvent) return;
  console.log(data);
});

chart.on('legend:reset', (e) => {
  const { nativeEvent } = e;
  if (!nativeEvent) return;
  console.log('end');
});