@elastic/eui
Version:
Elastic UI Component Library
185 lines (184 loc) • 7.77 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
var _excluded = ["className", "color", "data-test-subj", "hex", "id", "onChange", "onKeyDown"];
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
import React, { forwardRef, useEffect, useRef, useState, useCallback } from 'react';
import classNames from 'classnames';
import { keys, useMouseMove, useEuiMemoizedStyles, useGeneratedHtmlId } from '../../services';
import { isNil } from '../../services/predicate';
import { logicalStyles } from '../../global_styling';
import { useEuiI18n } from '../i18n';
import { getEventPosition } from './utils';
import { euiSaturationStyles } from './saturation.styles';
import { jsx as ___EmotionJSX } from "@emotion/react";
var colorDefaultValue = [1, 0, 0];
export var EuiSaturation = /*#__PURE__*/forwardRef(function (_ref, ref) {
var className = _ref.className,
_ref$color = _ref.color,
color = _ref$color === void 0 ? colorDefaultValue : _ref$color,
_ref$dataTestSubj = _ref['data-test-subj'],
dataTestSubj = _ref$dataTestSubj === void 0 ? 'euiSaturation' : _ref$dataTestSubj,
hex = _ref.hex,
_id = _ref.id,
onChange = _ref.onChange,
onKeyDown = _ref.onKeyDown,
rest = _objectWithoutProperties(_ref, _excluded);
var classes = classNames('euiSaturation', className);
var styles = useEuiMemoizedStyles(euiSaturationStyles);
var id = useGeneratedHtmlId({
conditionalId: _id
});
var instructionsId = "".concat(id, "-instructions");
var indicatorId = "".concat(id, "-saturationIndicator");
var _useEuiI18n = useEuiI18n(['euiSaturation.ariaLabel', 'euiSaturation.screenReaderInstructions'], ['HSV color mode saturation and value 2-axis slider', "Arrow keys to navigate the square color gradient. Coordinates will be used to calculate HSV color mode 'saturation' and 'value' numbers, in the range of 0 to 1. Left and right to change the saturation. Up and down change the value."]),
_useEuiI18n2 = _slicedToArray(_useEuiI18n, 2),
roleDescString = _useEuiI18n2[0],
instructionsString = _useEuiI18n2[1];
var _useState = useState({
left: 0,
top: 0
}),
_useState2 = _slicedToArray(_useState, 2),
indicator = _useState2[0],
setIndicator = _useState2[1];
var _useState3 = useState([]),
_useState4 = _slicedToArray(_useState3, 2),
lastColor = _useState4[0],
setLastColor = _useState4[1];
var boxRef = useRef(null);
useEffect(function () {
// Mimics `componentDidMount` and `componentDidUpdate`
var _color = _slicedToArray(color, 3),
s = _color[1],
v = _color[2];
if (!isNil(boxRef.current) && lastColor.join() !== color.join()) {
var _boxRef$current$getBo = boxRef.current.getBoundingClientRect(),
height = _boxRef$current$getBo.height,
width = _boxRef$current$getBo.width;
setIndicator({
left: s * width,
top: (1 - v) * height
});
}
}, [color, lastColor]);
var calculateColor = useCallback(function (_ref2) {
var top = _ref2.top,
height = _ref2.height,
left = _ref2.left,
width = _ref2.width;
var _color2 = _slicedToArray(color, 1),
h = _color2[0];
var s = left / width;
var v = 1 - top / height;
return [h, s, v];
}, [color]);
var handleUpdate = useCallback(function (box) {
var left = box.left,
top = box.top;
setIndicator({
left: left,
top: top
});
var newColor = calculateColor(box);
setLastColor(newColor);
onChange(newColor);
}, [calculateColor, onChange]);
var handleChange = useCallback(function (location) {
if (isNil(boxRef === null || boxRef === void 0 ? void 0 : boxRef.current)) return;
var box = getEventPosition(location, boxRef.current);
handleUpdate(box);
}, [handleUpdate]);
var _useMouseMove = useMouseMove(handleChange, boxRef.current),
_useMouseMove2 = _slicedToArray(_useMouseMove, 2),
handleMouseDown = _useMouseMove2[0],
handleInteraction = _useMouseMove2[1];
var handleKeyDown = useCallback(function (event) {
onKeyDown === null || onKeyDown === void 0 || onKeyDown(event);
if (isNil(boxRef === null || boxRef === void 0 ? void 0 : boxRef.current)) return;
var _boxRef$current$getBo2 = boxRef.current.getBoundingClientRect(),
height = _boxRef$current$getBo2.height,
width = _boxRef$current$getBo2.width;
var left = indicator.left,
top = indicator.top;
var heightScale = height / 100;
var widthScale = width / 100;
var newLeft = left;
var newTop = top;
switch (event.key) {
case keys.ARROW_DOWN:
event.preventDefault();
newTop = top < height ? top + heightScale : height;
break;
case keys.ARROW_LEFT:
event.preventDefault();
newLeft = left > 0 ? left - widthScale : 0;
break;
case keys.ARROW_UP:
event.preventDefault();
newTop = top > 0 ? top - heightScale : 0;
break;
case keys.ARROW_RIGHT:
event.preventDefault();
newLeft = left < width ? left + widthScale : width;
break;
default:
return;
}
var newPosition = {
left: newLeft,
top: newTop
};
setIndicator(newPosition);
var newColor = calculateColor(_objectSpread({
width: width,
height: height
}, newPosition));
onChange(newColor);
}, [calculateColor, indicator, onChange, onKeyDown]);
return ___EmotionJSX("div", _extends({
onMouseDown: handleMouseDown,
onTouchStart: handleInteraction,
onTouchMove: handleInteraction,
onKeyDown: handleKeyDown,
ref: ref,
css: styles.euiSaturation,
className: classes,
"data-test-subj": dataTestSubj,
style: {
background: "hsl(".concat(color[0], ", 100%, 50%)")
},
tabIndex: -1
}, rest), ___EmotionJSX("div", {
css: styles.euiSaturation__lightness,
className: "euiSaturation__lightness",
ref: boxRef
}, ___EmotionJSX("div", {
css: styles.euiSaturation__saturation,
className: "euiSaturation__saturation"
})), ___EmotionJSX("button", {
id: indicatorId,
css: styles.euiSaturation__indicator,
className: "euiSaturation__indicator",
style: logicalStyles(indicator),
"aria-roledescription": roleDescString,
"aria-label": hex,
"aria-describedby": instructionsId
}), ___EmotionJSX("span", {
hidden: true,
"aria-live": "assertive"
}, hex), ___EmotionJSX("span", {
hidden: true,
id: instructionsId
}, instructionsString));
});
EuiSaturation.displayName = 'EuiSaturation';