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<!doctype html> <html lang="en"> <head> <title>Code coverage report for dist/lib/utils/scales-utils.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../../prettify.css" /> <link rel="stylesheet" href="../../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../../index.html">all files</a> / <a href="index.html">dist/lib/utils/</a> scales-utils.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 88.89% Statements 216/243 </div> <div class='fl pad1y space-right2'> 68.46% Branches 89/130 </div> <div class='fl pad1y space-right2'> 94.44% Functions 34/36 </div> <div class='fl pad1y space-right2'> 89.09% Lines 196/220 </div> <div class='fl pad1y'> 2 statements, 1 function, 3 branches Ignored      </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603</td><td class="line-coverage quiet">    1×       19×   8×   1×   1× 1× 1× 1× 1× 1× 1×   1×   1×   1×   1×   1×   1×   1×   1×   1×   1×   1×   5×   64×   1583×                                                 1×             1×             1×             1×             1×             1×                       1× 7× 7× 7× 7× 7× 7× 7×   7× 14× 14× 14× 10× 10×   14×     7×                 1× 33× 5×   28× 28× 28×   28× 28×                         1× 3× 3×     3× 12× 12× 12× 12×     12×       3× 3×       3×                     1× 42× 35×   7×                                           1× 24×                                     1× 66×   66× 66× 66× 66× 66× 66× 66× 66× 66× 66× 66×       66× 3×   63× 53×   63×     63×   39×         24× 24×       24×                 1× 1× 1×                           1× 1× 1×                                 1× 1×   1× 1×                             1× 1× 1×   1× 1×   1×   1× 1×   1×       1×       1×   1×                           1× 31× 31× 31× 31× 31×         31×                     1× 1× 1× 1×       1× 1×   1× 1× 1×       1× 1×     1× 1×   1× 1× 1×   1× 1× 1×       1×   1×   1×                 1×                                     1×   66×   66× 35×         31× 30×     1×         1×     1×                 1× 6× 6×                   1× 40×     1× 22×                 1× 37× 37× 16× 16× 16×   30×         16×   21×                     1× 3× 3× 3× 3× 3× 3× 3×   3× 3×   10× 10×         3×                       1× 10× 10× 3×     3×   7×                 1× 263×   263×  </td><td class="text"><pre class="prettyprint lang-js">'use strict';   Object.defineProperty(exports, "__esModule", { value: true });   var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };   var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (EObject.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };   var _SCALE_FUNCTIONS;   exports._getSmallestDistanceIndex = _getSmallestDistanceIndex; exports.getScaleObjectFromProps = getScaleObjectFromProps; exports.getAttributeScale = getAttributeScale; exports.getAttributeFunctor = getAttributeFunctor; exports.getAttr0Functor = getAttr0Functor; exports.getAttributeValue = getAttributeValue; exports.getScalePropTypesByAttribute = getScalePropTypesByAttribute;   var _d3Scale = require('d3-scale');   var _d3Scale2 = _interopRequireDefault(_d3Scale);   var _d3Array = require('d3-array');   var _d3Array2 = _interopRequireDefault(_d3Array);   var _d3Collection = require('d3-collection');   var _d3Collection2 = _interopRequireDefault(_d3Collection);   var _react = require('react');   var _react2 = _interopRequireDefault(_react);   var _warning = require('warning');   var _warning2 = _interopRequireDefault(_warning);   var _dataUtils = require('./data-utils');   function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }   function _toConsumableArray(arr) { if (EArray.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }   function _defineProperty(obj, key, value) { if (Ikey in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } // Copyright (c) 2016 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.   /** * Linear scale name. * @type {string} * @const */ var LINEAR_SCALE_TYPE = 'linear';   /** * Ordinal scale name. * @type {string} * @const */ var ORDINAL_SCALE_TYPE = 'ordinal';   /** * Category scale. * @type {string} * @const */ var CATEGORY_SCALE_TYPE = 'category';   /** * Log scale name. * @type {string} * @const */ var LOG_SCALE_TYPE = 'log';   /** * Time scale name. * @type {string} * @const */ var TIME_SCALE_TYPE = 'time';   /** * Scale functions that are supported in the library. * @type {Object} * @const */ var SCALE_FUNCTIONS = (_SCALE_FUNCTIONS = {}, _defineProperty(_SCALE_FUNCTIONS, LINEAR_SCALE_TYPE, _d3Scale2.default.scaleLinear), _defineProperty(_SCALE_FUNCTIONS, ORDINAL_SCALE_TYPE, _d3Scale2.default.scaleOrdinal), _defineProperty(_SCALE_FUNCTIONS, CATEGORY_SCALE_TYPE, _d3Scale2.default.scaleOrdinal), _defineProperty(_SCALE_FUNCTIONS, LOG_SCALE_TYPE, _d3Scale2.default.scaleLog), _defineProperty(_SCALE_FUNCTIONS, TIME_SCALE_TYPE, _d3Scale2.default.scaleTime), _SCALE_FUNCTIONS);   /** * Find the smallest distance between the values on a given scale and return * the index of the element, where the smallest distance was found. * It returns the first occurrence of i where * `scale(value[i]) - scale(value[i - 1])` is minimal * @param {Array} values Array of values. * @param {Object} scaleObject Scale object. * @returns {number} Index of an element where the smallest distance was found. * @private */ function _getSmallestDistanceIndex(values, scaleObject) { var scaleFn = _getScaleFnFromScaleObject(scaleObject); var result = 0; if (EscaleFn) { var nextValue = void 0; var currentValue = scaleFn(values[0]); var distance = Infinity; var nextDistance = void 0;   for (var i = 1; i < values.length; i++) { nextValue = scaleFn(values[i]); nextDistance = Math.abs(nextValue - currentValue); if (nextDistance < distance) { distance = nextDistance; result = i; } currentValue = nextValue; } } return result; }   /** * Crate a scale function from the scale object. * @param {Object} scaleObject Scale object. * @returns {*} Scale function. * @private */ function _getScaleFnFromScaleObject(scaleObject) { if (!scaleObject) { return null; } var type = scaleObject.type; var domain = scaleObject.domain; var range = scaleObject.range;   if (Etype !== ORDINAL_SCALE_TYPE) { return SCALE_FUNCTIONS[type]().domain(domain).range(range); } return SCALE_FUNCTIONS[type]().domain(domain).rangePoints(range, 1); }   /** * Get the domain from the array of data. * @param {Array} allData All data. * @param {string} attr Property name. * @param {string} type Scale type. * @returns {Array} Domain. * @private */ function _getDomainByAttr(allData, attr, type) { var domain = void 0; var attr0 = attr + '0';   // Collect both attr and available attr0 values from the array of data. var values = allData.reduce(function (data, d) { var value = d[attr]; var value0 = d[attr0]; data.push(value); if (I_isDefined(value0)) { data.push(value0); } return data; }, []);   // Create proper domain depending on the type of the scale. if (Etype !== ORDINAL_SCALE_TYPE && type !== CATEGORY_SCALE_TYPE) { domain = _d3Array2.default.extent(values); } else { domain = _d3Collection2.default.set(values).values(); } return domain; }   /** * Create custom scale object from the value. When the scale is created from * this object, it should return the same value all time. * @param {string} attr Attribute. * @param {*} value Value. * @returns {Object} Custom scale object. * @private */ function _createScaleObjectForValue(attr, value) { if (typeof value === 'undefined') { return null; } return { type: 'category', range: [value], domain: [], distance: 0, attr: attr, baseValue: undefined, isValue: true }; }   /** * Create a regular scale object for a further use from the existing parameters. * @param {Array} domain Domain. * @param {Array} range Range. * @param {string} type Type. * @param {number} distance Distance. * @param {string} attr Attribute. * @param {number} baseValue Base value. * @returns {Object} Scale object. * @private */ function _createScaleObjectForFunction(domain, range, type, distance, attr, baseValue) { return { domain: domain, range: range, type: type, distance: distance, attr: attr, baseValue: baseValue, isValue: false }; }   /** * Get scale object from props. E. g. object like {xRange, xDomain, xDistance, * xType} is transformed into {range, domain, distance, type}. * @param {Object} props Props. * @param {string} attr Attribute. * @returns {*} Null or an object with the scale. * @private */ function _collectScaleObjectFromProps(props, attr) { var _ref;   var _props$_allData = props._allData; var data = _props$_allData === undefined ? [] : _props$_allData; var value = props[attr]; var fallbackValue = props['_' + attr + 'Value']; var initialDomain = props[attr + 'Domain']; var range = props[attr + 'Range']; var _props$ = props[attr + 'Distance']; var distance = _props$ === undefined ? 0 : _props$; var baseValue = props[attr + 'BaseValue']; var _props$2 = props[attr + 'Type']; var type = _props$2 === undefined ? LINEAR_SCALE_TYPE : _props$2;   // Return value-based scale if the value is assigned.   if (typeof value !== 'undefined') { return _createScaleObjectForValue(attr, value); } var filteredData = data.filter(function (d) { return d; }); var allData = (_ref = []).concat.apply(_ref, _toConsumableArray(filteredData));   // Make sure that the minimum necessary properties exist. if (!range || !allData.length || !(0, _dataUtils.isObjectPropertyInUse)(allData, attr)) { // Try to use the fallback value if it is available. return _createScaleObjectForValue(attr, fallbackValue); }   // Pick up the domain from the properties and create a new one if it's not // available. var domain = initialDomain || _getDomainByAttr(allData, attr, type); if (Itypeof baseValue !== 'undefined') { domain = (0, _dataUtils.addValueToArray)(domain, baseValue); }   return _createScaleObjectForFunction(domain, range, type, distance, attr, baseValue); }   /** * Compute left domain adjustment for the given values. * @param {Array} values Array of values. * @returns {number} Domain adjustment. * @private */ function _computeLeftDomainAdjustment(values) { if (Evalues.length > 1) { return (values[1] - values[0]) / 2; } if (values.length === 1) { return values[0] - 0.5; } return 0; }   /** * Compute right domain adjustment for the given values. * @param {Array} values Array of values. * @returns {number} Domain adjustment. * @private */ function _computeRightDomainAdjustment(values) { if (Evalues.length > 1) { return (values[values.length - 1] - values[values.length - 2]) / 2; } if (values.length === 1) { return values[0] - 0.5; } return 0; }   /** * Compute distance for the given values. * @param {Array} values Array of values. * @param {Array} domain Domain. * @param {number} bestDistIndex Index of a best distance found. * @param {function} scaleFn Scale function. * @returns {number} Domain adjustment. * @private */ function _computeScaleDistance(values, domain, bestDistIndex, scaleFn) { if (Evalues.length > 1) { // Avoid zero indexes. var i = Math.max(bestDistIndex, 1); return Math.abs(scaleFn(values[i]) - scaleFn(values[i - 1])); } if (values.length === 1) { return Math.abs(scaleFn(domain[1]) - scaleFn(domain[0])); } return 0; }   /** * Get the distance, the smallest and the largest value of the domain. * @param {Array} data Array of data for the single series. * @param {Object} scaleObject Scale object. * @returns {{domain0: number, domainN: number, distance: number}} Resuylt. * @private */ function _getScaleDistanceAndAdjustedDomain(data, scaleObject) { var attr = scaleObject.attr; var domain = scaleObject.domain;   var values = (0, _dataUtils.getUniquePropertyValues)(data, attr); var index = _getSmallestDistanceIndex(values, scaleObject);   var adjustedDomain = [].concat(domain);   adjustedDomain[0] -= _computeLeftDomainAdjustment(values); adjustedDomain[domain.length - 1] += _computeRightDomainAdjustment(values); // Fix log scale if it's too small. if (IscaleObject.type === LOG_SCALE_TYPE && domain[0] <= 0) { adjustedDomain[0] = Math.min(domain[1] / 10, 1); }   var adjustedScaleFn = _getScaleFnFromScaleObject(_extends({}, scaleObject, { domain: adjustedDomain }));   var distance = _computeScaleDistance(values, adjustedDomain, index, adjustedScaleFn);   return { domain0: adjustedDomain[0], domainN: adjustedDomain[adjustedDomain.length - 1], distance: distance }; }   /** * Returns true if scale adjustments are possible for a given scale. * @param {Object} props Props. * @param {Object} scaleObject Scale object. * @returns {boolean} True if scale adjustments possible. * @private */ function _isScaleAdjustmentPossible(props, scaleObject) { var attr = scaleObject.attr; var _props$_adjustBy = props._adjustBy; var adjustBy = _props$_adjustBy === undefined ? [] : _props$_adjustBy; var _props$_adjustWhat = props._adjustWhat; var adjustWhat = _props$_adjustWhat === undefined ? [] : _props$_adjustWhat;   // The scale cannot be adjusted if there's no attributes to adjust, no // suitable values   return adjustWhat.length && adjustBy.length && adjustBy.indexOf(attr) !== -1; }   /** * Adjust continuous scales (e.g. 'linear', 'log' and 'time') by adding the * space from the left and right of them and by computing the best distance. * @param {Object} props Props. * @param {Object} scaleObject Scale object. * @returns {*} Scale object with adjustments. * @private */ function _adjustContinuousScale(props, scaleObject) { var allSeriesData = props._allData; var _props$_adjustWhat2 = props._adjustWhat; var adjustWhat = _props$_adjustWhat2 === undefined ? [] : _props$_adjustWhat2; &