kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
227 lines (182 loc) • 18.4 kB
JavaScript
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = undefined;
var _slicedToArray2 = require('babel-runtime/helpers/slicedToArray');
var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);
var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
var _createClass2 = require('babel-runtime/helpers/createClass');
var _createClass3 = _interopRequireDefault(_createClass2);
var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');
var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
var _inherits2 = require('babel-runtime/helpers/inherits');
var _inherits3 = _interopRequireDefault(_inherits2);
var _taggedTemplateLiteral2 = require('babel-runtime/helpers/taggedTemplateLiteral');
var _taggedTemplateLiteral3 = _interopRequireDefault(_taggedTemplateLiteral2);
var _class, _temp;
var _templateObject = (0, _taggedTemplateLiteral3.default)(['\n .selection {\n stroke: none;\n fill: ', ';\n opacity: 1;\n }\n'], ['\n .selection {\n stroke: none;\n fill: ', ';\n opacity: 1;\n }\n']); // Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
var _react = require('react');
var _react2 = _interopRequireDefault(_react);
var _propTypes = require('prop-types');
var _propTypes2 = _interopRequireDefault(_propTypes);
var _styledComponents = require('styled-components');
var _styledComponents2 = _interopRequireDefault(_styledComponents);
var _d3Selection = require('d3-selection');
var _d3Brush = require('d3-brush');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var StyledG = _styledComponents2.default.g(_templateObject, function (props) {
return props.theme.rangeBrushBgd;
});
var RangeBrush = (_temp = _class = function (_Component) {
(0, _inherits3.default)(RangeBrush, _Component);
function RangeBrush() {
(0, _classCallCheck3.default)(this, RangeBrush);
return (0, _possibleConstructorReturn3.default)(this, (RangeBrush.__proto__ || Object.getPrototypeOf(RangeBrush)).apply(this, arguments));
}
(0, _createClass3.default)(RangeBrush, [{
key: 'componentDidMount',
value: function componentDidMount() {
var _this2 = this;
var _props = this.props,
_props$range = (0, _slicedToArray3.default)(_props.range, 2),
min = _props$range[0],
max = _props$range[1],
_props$value = (0, _slicedToArray3.default)(_props.value, 2),
val0 = _props$value[0],
val1 = _props$value[1];
// We want the React app to respond to brush state and vice-versa
// but d3-brush fires the same events for both user-initiated brushing
// and programmatic brushing (brush.move). We need these flags to
// distinguish between the uses.
//
// We don't use state because that would trigger another `componentDidUpate`
this.brushing = false;
this.moving = false;
this.root = (0, _d3Selection.select)(this.rootContainer);
this.brush = (0, _d3Brush.brushX)().on('start', function () {
_this2.brushing = true;
}).on('brush', function () {
if (_this2.moving) {
return;
}
_d3Selection.event.selection === null ? _this2._reset() : _this2._brush(_d3Selection.event.selection);
}).on('end', function () {
if (!_this2.moving && _d3Selection.event.selection === null) {
_this2._reset();
}
_this2.brushing = false;
_this2.moving = false;
});
this.root.call(this.brush);
if (val0 === min && val1 === max) {
this._reset();
}
}
}, {
key: 'componentDidUpdate',
value: function componentDidUpdate(prevProps) {
var _props2 = this.props,
_props2$range = (0, _slicedToArray3.default)(_props2.range, 2),
min = _props2$range[0],
max = _props2$range[1],
_props2$value = (0, _slicedToArray3.default)(_props2.value, 2),
val0 = _props2$value[0],
val1 = _props2$value[1],
width = _props2.width;
var _prevProps$value = (0, _slicedToArray3.default)(prevProps.value, 2),
prevVal0 = _prevProps$value[0],
prevVal1 = _prevProps$value[1];
if (prevProps.width !== width) {
this.root.call(this.brush);
this._move(val0, val1);
}
if (!this.brushing && !this.moving) {
if (val0 === min && val1 === max) {
this.moving = true;
this.brush.move(this.root, null);
}
if (prevVal0 !== val0 || prevVal1 !== val1) {
this.moving = true;
this._move(val0, val1);
}
}
}
}, {
key: '_reset',
value: function _reset() {
var _props$range2 = (0, _slicedToArray3.default)(this.props.range, 2),
minValue = _props$range2[0],
maxValue = _props$range2[1];
this.props.onBrush(minValue, maxValue);
}
}, {
key: '_move',
value: function _move(val0, val1) {
var _props3 = this.props,
_props3$domain = (0, _slicedToArray3.default)(_props3.domain, 2),
min = _props3$domain[0],
max = _props3$domain[1],
width = _props3.width;
var scale = function scale(x) {
return (x - min) * width / (max - min);
};
this.brush.move(this.root, [scale(val0), scale(val1)]);
}
}, {
key: '_brush',
value: function _brush(_ref) {
var _ref2 = (0, _slicedToArray3.default)(_ref, 2),
sel0 = _ref2[0],
sel1 = _ref2[1];
var _props4 = this.props,
_props4$domain = (0, _slicedToArray3.default)(_props4.domain, 2),
min = _props4$domain[0],
max = _props4$domain[1],
onBrush = _props4.onBrush,
width = _props4.width;
var invert = function invert(x) {
return x * (max - min) / width + min;
};
onBrush(invert(sel0), invert(sel1));
}
}, {
key: 'render',
value: function render() {
var _this3 = this;
return _react2.default.createElement(StyledG, { className: 'kg-range-slider__brush',
innerRef: function innerRef(comp) {
_this3.rootContainer = comp;
} });
}
}]);
return RangeBrush;
}(_react.Component), _class.propTypes = {
domain: _propTypes2.default.arrayOf(_propTypes2.default.number).isRequired,
onBrush: _propTypes2.default.func.isRequired,
range: _propTypes2.default.arrayOf(_propTypes2.default.number).isRequired,
value: _propTypes2.default.arrayOf(_propTypes2.default.number).isRequired,
width: _propTypes2.default.number.isRequired
}, _temp);
exports.default = RangeBrush;
;
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IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n// THE SOFTWARE.\n\nimport React, {Component} from 'react';\nimport PropTypes from 'prop-types';\nimport styled from 'styled-components';\nimport {event, select} from 'd3-selection';\nimport {brushX} from 'd3-brush';\n\nconst StyledG = styled.g`\n  .selection {\n    stroke: none;\n    fill: ${props => props.theme.rangeBrushBgd};\n    opacity: 1;\n  }\n`;\n\nexport default class RangeBrush extends Component {\n  static propTypes = {\n    domain: PropTypes.arrayOf(PropTypes.number).isRequired,\n    onBrush: PropTypes.func.isRequired,\n    range: PropTypes.arrayOf(PropTypes.number).isRequired,\n    value: PropTypes.arrayOf(PropTypes.number).isRequired,\n    width: PropTypes.number.isRequired\n  };\n\n  componentDidMount() {\n    const {range: [min, max], value: [val0, val1]} = this.props;\n    // We want the React app to respond to brush state and vice-versa\n    // but d3-brush fires the same events for both user-initiated brushing\n    // and programmatic brushing (brush.move). We need these flags to\n    // distinguish between the uses.\n    //\n    // We don't use state because that would trigger another `componentDidUpate`\n    this.brushing = false;\n    this.moving = false;\n\n    this.root = select(this.rootContainer);\n    this.brush = brushX()\n      .on('start', () => {\n        this.brushing = true;\n      })\n      .on('brush', () => {\n        if (this.moving) {\n          return;\n        }\n\n        event.selection === null ? this._reset() : this._brush(event.selection);\n      })\n      .on('end', () => {\n        if (!this.moving && event.selection === null) {\n          this._reset();\n        }\n\n        this.brushing = false;\n        this.moving = false;\n      });\n\n    this.root.call(this.brush);\n\n    if (val0 === min && val1 === max) {\n      this._reset();\n    }\n  }\n\n  componentDidUpdate(prevProps) {\n    const {range: [min, max], value: [val0, val1], width} = this.props;\n    const [prevVal0, prevVal1] = prevProps.value;\n\n    if (prevProps.width !== width) {\n      this.root.call(this.brush);\n      this._move(val0, val1);\n    }\n\n    if (!this.brushing && !this.moving) {\n      if (val0 === min && val1 === max) {\n        this.moving = true;\n        this.brush.move(this.root, null);\n      }\n\n      if (prevVal0 !== val0 || prevVal1 !== val1) {\n        this.moving = true;\n        this._move(val0, val1);\n      }\n    }\n  }\n\n  _reset() {\n    const [minValue, maxValue] = this.props.range;\n    this.props.onBrush(minValue, maxValue);\n  }\n\n  _move(val0, val1) {\n    const {domain: [min, max], width} = this.props;\n    const scale = x => (x - min) * width / (max - min);\n    this.brush.move(this.root, [scale(val0), scale(val1)]);\n  }\n\n  _brush([sel0, sel1]) {\n    const {domain: [min, max], onBrush, width} = this.props;\n    const invert = x => x * (max - min) / width + min;\n    onBrush(invert(sel0), invert(sel1));\n  }\n\n  render() {\n    return <StyledG className=\"kg-range-slider__brush\"\n                    innerRef={comp => {\n      this.rootContainer = comp;\n    }}/>;\n  }\n};\n"]}