react-track/lib/tracking-formulas.js

react element tracking and animation

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.calculateScrollY = exports.getDocumentElement = exports.getDocumentRect = exports.isMeasured = exports.bottomCenter = exports.bottomTop = exports.bottomBottom = exports.centerBottom = exports.centerCenter = exports.centerTop = exports.topCenter = exports.topBottom = exports.topTop = undefined;

var _index = require('./index');

var topTop = exports.topTop = function topTop(containerRect) {
  return function (rect) {
    return ~~(rect.top - containerRect.top);
  };
};

var topBottom = exports.topBottom = function topBottom(containerRect, container) {
  return function (rect) {
    return ~~(rect.top - containerRect.top - container.clientHeight);
  };
};

var topCenter = exports.topCenter = function topCenter(containerRect, container) {
  return function (rect) {
    return ~~(rect.top - containerRect.top - container.clientHeight / 2);
  };
};

var centerTop = exports.centerTop = function centerTop(containerRect) {
  return function (rect) {
    return ~~(rect.top + rect.height / 2 - containerRect.top);
  };
};

var centerCenter = exports.centerCenter = function centerCenter(containerRect, container) {
  return function (rect) {
    return ~~(rect.top + rect.height / 2 - containerRect.top - container.clientHeight / 2);
  };
};

var centerBottom = exports.centerBottom = function centerBottom(containerRect, container) {
  return function (rect) {
    return ~~(rect.top + rect.height / 2 - containerRect.top - container.clientHeight);
  };
};

var bottomBottom = exports.bottomBottom = function bottomBottom(containerRect, container) {
  return function (rect) {
    return ~~(rect.bottom - containerRect.top - container.clientHeight);
  };
};

var bottomTop = exports.bottomTop = function bottomTop(containerRect) {
  return function (rect) {
    return ~~(rect.bottom - containerRect.top);
  };
};

var bottomCenter = exports.bottomCenter = function bottomCenter(containerRect, container) {
  return function (rect) {
    return ~~(rect.bottom - containerRect.top - container.clientHeight / 2);
  };
};

var isMeasured = exports.isMeasured = function isMeasured(rect) {
  return rect !== _index.defaultRect;
};
var getDocumentRect = exports.getDocumentRect = function getDocumentRect(documentRect) {
  return documentRect;
};
var getDocumentElement = exports.getDocumentElement = function getDocumentElement(_, documentElement) {
  return documentElement;
};
var calculateScrollY = exports.calculateScrollY = function calculateScrollY(_ref) {
  var top = _ref.top;
  return -top;
};