kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
273 lines (226 loc) • 28.3 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _react = require("react");
var _d3Array = require("d3-array");
var _window = require("global/window");
var _console = _interopRequireDefault(require("global/console"));
var _defaultSettings = require("../../../constants/default-settings");
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
function AnimationControllerFactory() {
/**
* 4 Animation Window Types
* 1. free
* |-> |->
* Current time is a fixed range, animate a moving window that calls next animation frames continuously
* The increment id based on domain / BASE_SPEED * SPEED
*
* 2. incremental
* | |->
* Same as free, current time is a growing range, only the max value of range increment during animation.
* The increment is also based on domain / BASE_SPEED * SPEED
*
* 3. point
* o -> o
* Current time is a point, animate a moving point calls next animation frame continuously
* The increment is based on domain / BASE_SPEED * SPEED
*
* 4. interval
* o ~> o
* Current time is a point. An array of sorted time steps are provided,
* animate a moving point jumps to the next step
*/
var AnimationController = /*#__PURE__*/function (_Component) {
(0, _inherits2["default"])(AnimationController, _Component);
var _super = _createSuper(AnimationController);
function AnimationController() {
var _this;
(0, _classCallCheck2["default"])(this, AnimationController);
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
_this = _super.call.apply(_super, [this].concat(args));
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "state", {
isAnimating: false
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_timer", null);
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_animate", function (delay) {
_this._startTime = new Date().getTime();
var loop = function loop() {
var current = new Date().getTime(); // @ts-ignore
var delta = current - _this._startTime;
if (delta >= delay) {
_this._nextFrame();
_this._startTime = new Date().getTime();
} else {
_this._timer = (0, _window.requestAnimationFrame)(loop);
}
};
_this._timer = (0, _window.requestAnimationFrame)(loop);
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_resetAnimationByDomain", function () {
var _this$props = _this.props,
domain = _this$props.domain,
value = _this$props.value,
animationWindow = _this$props.animationWindow;
if (Array.isArray(value)) {
if (animationWindow === _defaultSettings.ANIMATION_WINDOW.incremental) {
_this.props.updateAnimation([value[0], value[0] + 1]);
} else {
_this.props.updateAnimation([domain[0], domain[0] + value[1] - value[0]]);
}
} else {
_this.props.updateAnimation(domain[0]);
}
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_resetAnimtionByTimeStep", function () {
// go to the first steps
_this.props.updateAnimation([_this.props.steps[0], 0]);
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_resetAnimation", function () {
if (_this.props.animationWindow === _defaultSettings.ANIMATION_WINDOW.interval) {
_this._resetAnimtionByTimeStep();
} else {
_this._resetAnimationByDomain();
}
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_startAnimation", function () {
var speed = _this.props.speed;
_this._clearTimer();
if (speed > 0) {
if (_this.props.animationWindow === _defaultSettings.ANIMATION_WINDOW.interval) {
// animate by interval
// 30*600
var steps = _this.props.steps;
if (!Array.isArray(steps) || !steps.length) {
_console["default"].warn('animation steps should be an array');
return;
} // when speed = 1, animation should loop through 600 frames at 60 FPS
// calculate delay based on # steps
var delay = _defaultSettings.BASE_SPEED * (1000 / _defaultSettings.FPS) / steps.length / (speed || 1);
_this._animate(delay);
} else {
_this._timer = (0, _window.requestAnimationFrame)(_this._nextFrame);
}
}
_this.setState({
isAnimating: true
});
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_clearTimer", function () {
if (_this._timer) {
(0, _window.cancelAnimationFrame)(_this._timer);
_this._timer = null;
}
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_pauseAnimation", function () {
_this._clearTimer();
_this.setState({
isAnimating: false
});
});
(0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_nextFrame", function () {
_this._timer = null;
var nextValue = _this.props.animationWindow === _defaultSettings.ANIMATION_WINDOW.interval ? _this._nextFrameByTimeStep() : _this._nextFrameByDomain();
_this.props.updateAnimation(nextValue);
});
return _this;
}
(0, _createClass2["default"])(AnimationController, [{
key: "componentDidMount",
value: function componentDidMount() {
this._startOrPauseAnimation();
}
}, {
key: "componentDidUpdate",
value: function componentDidUpdate() {
this._startOrPauseAnimation();
}
}, {
key: "componentWillUnmount",
value: function componentWillUnmount() {
if (this._timer) {
(0, _window.cancelAnimationFrame)(this._timer);
}
}
}, {
key: "_startOrPauseAnimation",
value: function _startOrPauseAnimation() {
var _this$props2 = this.props,
isAnimating = _this$props2.isAnimating,
speed = _this$props2.speed;
if (!this._timer && isAnimating && speed > 0) {
this._startAnimation();
} else if (this._timer && !isAnimating) {
this._pauseAnimation();
}
}
}, {
key: "_nextFrameByDomain",
value: function _nextFrameByDomain() {
var _this$props3 = this.props,
domain = _this$props3.domain,
value = _this$props3.value,
speed = _this$props3.speed,
baseSpeed = _this$props3.baseSpeed,
animationWindow = _this$props3.animationWindow;
var delta = (domain[1] - domain[0]) / baseSpeed * speed; // loop when reaches the end
// current time is a range
if (Array.isArray(value)) {
var value0;
var value1;
var readEnd = value[1] + delta > domain[1];
if (animationWindow === _defaultSettings.ANIMATION_WINDOW.incremental) {
value0 = value[0];
value1 = readEnd ? value[0] + 1 : value[1] + delta;
} else {
value0 = readEnd ? domain[0] : value[0] + delta;
value1 = value0 + value[1] - value[0];
}
return [value0, value1];
} // current time is a point
return value + delta > domain[1] ? domain[0] : value + delta;
}
}, {
key: "_nextFrameByTimeStep",
value: function _nextFrameByTimeStep() {
var _this$props4 = this.props,
steps = _this$props4.steps,
value = _this$props4.value;
var val = Array.isArray(value) ? value[0] : value;
var index = (0, _d3Array.bisectLeft)(steps, val);
var nextIdx = index >= steps.length - 1 ? 0 : index + 1;
return [steps[nextIdx], nextIdx];
}
}, {
key: "render",
value: function render() {
var isAnimating = this.state.isAnimating;
var children = this.props.children;
return typeof children === 'function' ? children(isAnimating, this._startAnimation, this._pauseAnimation, this._resetAnimation) : null;
}
}]);
return AnimationController;
}(_react.Component);
(0, _defineProperty2["default"])(AnimationController, "defaultProps", {
baseSpeed: _defaultSettings.BASE_SPEED,
speed: 1,
steps: null,
animationWindow: _defaultSettings.ANIMATION_WINDOW.free
});
return AnimationController;
}
var _default = AnimationControllerFactory;
exports["default"] = _default;
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Copyright (c) 2021 Uber Technologies, Inc.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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 {Component} from 'react';\nimport {bisectLeft} from 'd3-array';\nimport {requestAnimationFrame, cancelAnimationFrame} from 'global/window';\nimport Console from 'global/console';\nimport {BASE_SPEED, FPS, ANIMATION_WINDOW} from 'constants/default-settings';\n\nfunction AnimationControllerFactory() {\n  /**\n   * 4 Animation Window Types\n   * 1. free\n   *  |->  |->\n   * Current time is a fixed range, animate a moving window that calls next animation frames continuously\n   * The increment id based on domain / BASE_SPEED * SPEED\n   *\n   * 2. incremental\n   * |    |->\n   * Same as free, current time is a growing range, only the max value of range increment during animation.\n   * The increment is also based on domain / BASE_SPEED * SPEED\n   *\n   * 3. point\n   * o -> o\n   * Current time is a point, animate a moving point calls next animation frame continuously\n   * The increment is based on domain / BASE_SPEED * SPEED\n   *\n   * 4. interval\n   * o ~> o\n   * Current time is a point. An array of sorted time steps are provided,\n   * animate a moving point jumps to the next step\n   */\n  class AnimationController extends Component {\n    // TODO: convert the entire component to use hooks in the next PR\n    static defaultProps = {\n      baseSpeed: BASE_SPEED,\n      speed: 1,\n      steps: null,\n      animationWindow: ANIMATION_WINDOW.free\n    };\n\n    state = {\n      isAnimating: false\n    };\n\n    componentDidMount() {\n      this._startOrPauseAnimation();\n    }\n\n    componentDidUpdate() {\n      this._startOrPauseAnimation();\n    }\n\n    componentWillUnmount() {\n      if (this._timer) {\n        cancelAnimationFrame(this._timer);\n      }\n    }\n\n    _timer = null;\n\n    _startOrPauseAnimation() {\n      const {isAnimating, speed} = this.props;\n      if (!this._timer && isAnimating && speed > 0) {\n        this._startAnimation();\n      } else if (this._timer && !isAnimating) {\n        this._pauseAnimation();\n      }\n    }\n\n    _animate = delay => {\n      this._startTime = new Date().getTime();\n\n      const loop = () => {\n        const current = new Date().getTime();\n        // @ts-ignore\n        const delta = current - this._startTime;\n\n        if (delta >= delay) {\n          this._nextFrame();\n          this._startTime = new Date().getTime();\n        } else {\n          this._timer = requestAnimationFrame(loop);\n        }\n      };\n\n      this._timer = requestAnimationFrame(loop);\n    };\n\n    _resetAnimationByDomain = () => {\n      const {domain, value, animationWindow} = this.props;\n      if (Array.isArray(value)) {\n        if (animationWindow === ANIMATION_WINDOW.incremental) {\n          this.props.updateAnimation([value[0], value[0] + 1]);\n        } else {\n          this.props.updateAnimation([domain[0], domain[0] + value[1] - value[0]]);\n        }\n      } else {\n        this.props.updateAnimation(domain[0]);\n      }\n    };\n\n    _resetAnimtionByTimeStep = () => {\n      // go to the first steps\n      this.props.updateAnimation([this.props.steps[0], 0]);\n    };\n\n    _resetAnimation = () => {\n      if (this.props.animationWindow === ANIMATION_WINDOW.interval) {\n        this._resetAnimtionByTimeStep();\n      } else {\n        this._resetAnimationByDomain();\n      }\n    };\n\n    _startAnimation = () => {\n      const {speed} = this.props;\n      this._clearTimer();\n      if (speed > 0) {\n        if (this.props.animationWindow === ANIMATION_WINDOW.interval) {\n          // animate by interval\n          // 30*600\n          const {steps} = this.props;\n          if (!Array.isArray(steps) || !steps.length) {\n            Console.warn('animation steps should be an array');\n            return;\n          }\n          // when speed = 1, animation should loop through 600 frames at 60 FPS\n          // calculate delay based on # steps\n          const delay = (BASE_SPEED * (1000 / FPS)) / steps.length / (speed || 1);\n          this._animate(delay);\n        } else {\n          this._timer = requestAnimationFrame(this._nextFrame);\n        }\n      }\n      this.setState({isAnimating: true});\n    };\n\n    _clearTimer = () => {\n      if (this._timer) {\n        cancelAnimationFrame(this._timer);\n        this._timer = null;\n      }\n    };\n\n    _pauseAnimation = () => {\n      this._clearTimer();\n      this.setState({isAnimating: false});\n    };\n\n    _nextFrame = () => {\n      this._timer = null;\n      const nextValue =\n        this.props.animationWindow === ANIMATION_WINDOW.interval\n          ? this._nextFrameByTimeStep()\n          : this._nextFrameByDomain();\n\n      this.props.updateAnimation(nextValue);\n    };\n\n    _nextFrameByDomain() {\n      const {domain, value, speed, baseSpeed, animationWindow} = this.props;\n      const delta = ((domain[1] - domain[0]) / baseSpeed) * speed;\n\n      // loop when reaches the end\n      // current time is a range\n      if (Array.isArray(value)) {\n        let value0;\n        let value1;\n        const readEnd = value[1] + delta > domain[1];\n        if (animationWindow === ANIMATION_WINDOW.incremental) {\n          value0 = value[0];\n          value1 = readEnd ? value[0] + 1 : value[1] + delta;\n        } else {\n          value0 = readEnd ? domain[0] : value[0] + delta;\n          value1 = value0 + value[1] - value[0];\n        }\n        return [value0, value1];\n      }\n\n      // current time is a point\n      return value + delta > domain[1] ? domain[0] : value + delta;\n    }\n\n    _nextFrameByTimeStep() {\n      const {steps, value} = this.props;\n      const val = Array.isArray(value) ? value[0] : value;\n      const index = bisectLeft(steps, val);\n      const nextIdx = index >= steps.length - 1 ? 0 : index + 1;\n\n      return [steps[nextIdx], nextIdx];\n    }\n\n    render() {\n      const {isAnimating} = this.state;\n      const {children} = this.props;\n\n      return typeof children === 'function'\n        ? children(isAnimating, this._startAnimation, this._pauseAnimation, this._resetAnimation)\n        : null;\n    }\n  }\n\n  return AnimationController;\n}\n\nexport default AnimationControllerFactory;\n"]}