From c8dd85368963b2e5cb30caf6dfd759f773afb14f Mon Sep 17 00:00:00 2001 From: Brett Camper Date: Sun, 2 Aug 2020 15:31:33 -0700 Subject: [PATCH] v0.21.0 --- dist/tangram.debug.js | 721 +++++++++++++++++++++++-------------- dist/tangram.debug.js.map | 2 +- dist/tangram.debug.mjs | 627 ++++++++++++++++++++------------ dist/tangram.debug.mjs.map | 2 +- dist/tangram.min.js | 6 +- dist/tangram.min.mjs | 6 +- package-lock.json | 18 +- package.json | 2 +- 8 files changed, 854 insertions(+), 530 deletions(-) diff --git a/dist/tangram.debug.js b/dist/tangram.debug.js index 271629d97..358a92b95 100644 --- a/dist/tangram.debug.js +++ b/dist/tangram.debug.js @@ -576,6 +576,37 @@ _addToUnscopables('keys'); _addToUnscopables('values'); _addToUnscopables('entries'); +var f$1 = {}.propertyIsEnumerable; + +var _objectPie = { + f: f$1 +}; + +var isEnum = _objectPie.f; +var _objectToArray = function (isEntries) { + return function (it) { + var O = _toIobject(it); + var keys = _objectKeys(O); + var length = keys.length; + var i = 0; + var result = []; + var key; + while (length > i) if (isEnum.call(O, key = keys[i++])) { + result.push(isEntries ? [key, O[key]] : O[key]); + } return result; + }; +}; + +// https://github.com/tc39/proposal-object-values-entries + +var $entries = _objectToArray(true); + +_export(_export.S, 'Object', { + entries: function entries(it) { + return $entries(it); + } +}); + var ITERATOR$1 = _wks('iterator'); var TO_STRING_TAG = _wks('toStringTag'); var ArrayValues = _iterators.Array; @@ -628,15 +659,9 @@ for (var collections = _objectKeys(DOMIterables), i = 0; i < collections.length; } } -var f$1 = Object.getOwnPropertySymbols; +var f$2 = Object.getOwnPropertySymbols; var _objectGops = { - f: f$1 -}; - -var f$2 = {}.propertyIsEnumerable; - -var _objectPie = { f: f$2 }; @@ -1912,7 +1937,7 @@ function _wrapNativeSuper(Class) { return _wrapNativeSuper(Class); } -var version = "0.20.1"; +var version = "0.21.0"; var version$1 = 'v' + version; @@ -2920,17 +2945,19 @@ Utils.interpolate = function (x, points, transform) { }; Utils.toCSSColor = function (color) { - if (color[3] === 1) { - // full opacity - return "rgb(" + color.slice(0, 3).map(function (c) { - return Math.round(c * 255); - }).join(', ') + ")"; - } // RGB is between [0, 255] opacity is between [0, 1] + if (color != null) { + if (color[3] === 1) { + // full opacity + return "rgb(" + color.slice(0, 3).map(function (c) { + return Math.round(c * 255); + }).join(', ') + ")"; + } // RGB is between [0, 255] opacity is between [0, 1] - return "rgba(" + color.map(function (c, i) { - return i < 3 && Math.round(c * 255) || c; - }).join(', ') + ")"; + return "rgba(" + color.map(function (c, i) { + return i < 3 && Math.round(c * 255) || c; + }).join(', ') + ")"; + } }; var debugSettings; @@ -4916,31 +4943,6 @@ Texture.activeUnit = null; WorkerBroker$1.addTarget('Texture', Texture); subscribeMixin(Texture); -var isEnum = _objectPie.f; -var _objectToArray = function (isEntries) { - return function (it) { - var O = _toIobject(it); - var keys = _objectKeys(O); - var length = keys.length; - var i = 0; - var result = []; - var key; - while (length > i) if (isEnum.call(O, key = keys[i++])) { - result.push(isEntries ? [key, O[key]] : O[key]); - } return result; - }; -}; - -// https://github.com/tc39/proposal-object-values-entries - -var $entries = _objectToArray(true); - -_export(_export.S, 'Object', { - entries: function entries(it) { - return $entries(it); - } -}); - // @@match logic _fixReWks('match', 1, function (defined, MATCH, $match, maybeCallNative) { return [ @@ -7192,7 +7194,11 @@ StyleParser.createPointSizePropertyCache = function (obj, texture) { }; StyleParser.evalCachedPointSizeProperty = function (val, sprite_info, texture_info, context) { - // no percentage-based calculation, one cache for all sprites + if (val == null) { + return; + } // no percentage-based calculation, one cache for all sprites + + if (!val.has_pct && !val.has_ratio) { return StyleParser.evalCachedProperty(val, context); } @@ -7294,13 +7300,13 @@ StyleParser.evalCachedProperty = function (val, context) { StyleParser.convertUnits = function (val, context) { // pre-parsed units - if (val.val != null) { + if (val.value != null) { if (val.units === 'px') { // convert from pixels - return val.val * Geo$1.metersPerPixel(context.zoom); + return val.value * Geo$1.metersPerPixel(context.zoom); } - return val.val; + return val.value; } // un-parsed unit string else if (typeof val === 'string') { if (val.trim().slice(-2) === 'px') { @@ -7328,12 +7334,12 @@ StyleParser.convertUnits = function (val, context) { }; // Pre-parse units from string values -StyleParser.parseUnits = function (val) { +StyleParser.parseUnits = function (value) { var obj = { - val: parseNumber(val) + value: parseNumber(value) }; - if (obj.val !== 0 && typeof val === 'string' && val.trim().slice(-2) === 'px') { + if (obj.value !== 0 && typeof value === 'string' && value.trim().slice(-2) === 'px') { obj.units = 'px'; } @@ -7401,7 +7407,9 @@ StyleParser.evalCachedColorProperty = function (val, context) { context = {}; } - if (val.dynamic) { + if (val == null) { + return; + } else if (val.dynamic) { var v = tryEval(val.dynamic, context); if (typeof v === 'string') { @@ -7470,6 +7478,21 @@ StyleParser.evalCachedColorProperty = function (val, context) { return val.static; } } +}; // Evaluate color cache object and apply optional alpha override (alpha arg is a single value cache object) + + +StyleParser.evalCachedColorPropertyWithAlpha = function (val, alpha_prop, context) { + var color = StyleParser.evalCachedColorProperty(val, context); + + if (color != null && alpha_prop != null) { + var alpha = StyleParser.evalCachedProperty(alpha_prop, context); + + if (alpha != null) { + return [color[0], color[1], color[2], alpha]; + } + } + + return color; }; StyleParser.parseColor = function (val, context) { @@ -10311,10 +10334,8 @@ var Style = { style.selection_color = FeatureSelection.makeColor(feature, context.tile, context); } else { style.selection_color = FeatureSelection.defaultColor; - } // Subclass implementation - + } - style = this._parseFeature(feature, draw, context); return style; } catch (error) { log('error', 'Style.parseFeature: style parsing error', feature, style, error.stack); @@ -11311,6 +11332,7 @@ function isCoordOutsideTile(coord, tolerance) { } var earcut_1 = earcut; +var default_1 = earcut; function earcut(data, holeIndices, dim) { @@ -11321,9 +11343,9 @@ function earcut(data, holeIndices, dim) { outerNode = linkedList(data, 0, outerLen, dim, true), triangles = []; - if (!outerNode) return triangles; + if (!outerNode || outerNode.next === outerNode.prev) return triangles; - var minX, minY, maxX, maxY, x, y, size; + var minX, minY, maxX, maxY, x, y, invSize; if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim); @@ -11341,11 +11363,12 @@ function earcut(data, holeIndices, dim) { if (y > maxY) maxY = y; } - // minX, minY and size are later used to transform coords into integers for z-order calculation - size = Math.max(maxX - minX, maxY - minY); + // minX, minY and invSize are later used to transform coords into integers for z-order calculation + invSize = Math.max(maxX - minX, maxY - minY); + invSize = invSize !== 0 ? 1 / invSize : 0; } - earcutLinked(outerNode, triangles, dim, minX, minY, size); + earcutLinked(outerNode, triangles, dim, minX, minY, invSize); return triangles; } @@ -11381,7 +11404,7 @@ function filterPoints(start, end) { if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) { removeNode(p); p = end = p.prev; - if (p === p.next) return null; + if (p === p.next) break; again = true; } else { @@ -11393,11 +11416,11 @@ function filterPoints(start, end) { } // main ear slicing loop which triangulates a polygon (given as a linked list) -function earcutLinked(ear, triangles, dim, minX, minY, size, pass) { +function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) { if (!ear) return; // interlink polygon nodes in z-order - if (!pass && size) indexCurve(ear, minX, minY, size); + if (!pass && invSize) indexCurve(ear, minX, minY, invSize); var stop = ear, prev, next; @@ -11407,7 +11430,7 @@ function earcutLinked(ear, triangles, dim, minX, minY, size, pass) { prev = ear.prev; next = ear.next; - if (size ? isEarHashed(ear, minX, minY, size) : isEar(ear)) { + if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) { // cut off the triangle triangles.push(prev.i / dim); triangles.push(ear.i / dim); @@ -11415,7 +11438,7 @@ function earcutLinked(ear, triangles, dim, minX, minY, size, pass) { removeNode(ear); - // skipping the next vertice leads to less sliver triangles + // skipping the next vertex leads to less sliver triangles ear = next.next; stop = next.next; @@ -11428,16 +11451,16 @@ function earcutLinked(ear, triangles, dim, minX, minY, size, pass) { if (ear === stop) { // try filtering points and slicing again if (!pass) { - earcutLinked(filterPoints(ear), triangles, dim, minX, minY, size, 1); + earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1); // if this didn't work, try curing all small self-intersections locally } else if (pass === 1) { - ear = cureLocalIntersections(ear, triangles, dim); - earcutLinked(ear, triangles, dim, minX, minY, size, 2); + ear = cureLocalIntersections(filterPoints(ear), triangles, dim); + earcutLinked(ear, triangles, dim, minX, minY, invSize, 2); // as a last resort, try splitting the remaining polygon into two } else if (pass === 2) { - splitEarcut(ear, triangles, dim, minX, minY, size); + splitEarcut(ear, triangles, dim, minX, minY, invSize); } break; @@ -11465,7 +11488,7 @@ function isEar(ear) { return true; } -function isEarHashed(ear, minX, minY, size) { +function isEarHashed(ear, minX, minY, invSize) { var a = ear.prev, b = ear, c = ear.next; @@ -11479,22 +11502,26 @@ function isEarHashed(ear, minX, minY, size) { maxTY = a.y > b.y ? (a.y > c.y ? a.y : c.y) : (b.y > c.y ? b.y : c.y); // z-order range for the current triangle bbox; - var minZ = zOrder(minTX, minTY, minX, minY, size), - maxZ = zOrder(maxTX, maxTY, minX, minY, size); + var minZ = zOrder(minTX, minTY, minX, minY, invSize), + maxZ = zOrder(maxTX, maxTY, minX, minY, invSize); - // first look for points inside the triangle in increasing z-order - var p = ear.nextZ; + var p = ear.prevZ, + n = ear.nextZ; - while (p && p.z <= maxZ) { + // look for points inside the triangle in both directions + while (p && p.z >= minZ && n && n.z <= maxZ) { if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false; - p = p.nextZ; - } + p = p.prevZ; - // then look for points in decreasing z-order - p = ear.prevZ; + if (n !== ear.prev && n !== ear.next && + pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && + area(n.prev, n, n.next) >= 0) return false; + n = n.nextZ; + } + // look for remaining points in decreasing z-order while (p && p.z >= minZ) { if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && @@ -11502,6 +11529,14 @@ function isEarHashed(ear, minX, minY, size) { p = p.prevZ; } + // look for remaining points in increasing z-order + while (n && n.z <= maxZ) { + if (n !== ear.prev && n !== ear.next && + pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && + area(n.prev, n, n.next) >= 0) return false; + n = n.nextZ; + } + return true; } @@ -11527,11 +11562,11 @@ function cureLocalIntersections(start, triangles, dim) { p = p.next; } while (p !== start); - return p; + return filterPoints(p); } // try splitting polygon into two and triangulate them independently -function splitEarcut(start, triangles, dim, minX, minY, size) { +function splitEarcut(start, triangles, dim, minX, minY, invSize) { // look for a valid diagonal that divides the polygon into two var a = start; do { @@ -11546,8 +11581,8 @@ function splitEarcut(start, triangles, dim, minX, minY, size) { c = filterPoints(c, c.next); // run earcut on each half - earcutLinked(a, triangles, dim, minX, minY, size); - earcutLinked(c, triangles, dim, minX, minY, size); + earcutLinked(a, triangles, dim, minX, minY, invSize); + earcutLinked(c, triangles, dim, minX, minY, invSize); return; } b = b.next; @@ -11589,6 +11624,9 @@ function eliminateHole(hole, outerNode) { outerNode = findHoleBridge(hole, outerNode); if (outerNode) { var b = splitPolygon(outerNode, hole); + + // filter collinear points around the cuts + filterPoints(outerNode, outerNode.next); filterPoints(b, b.next); } } @@ -11604,7 +11642,7 @@ function findHoleBridge(hole, outerNode) { // find a segment intersected by a ray from the hole's leftmost point to the left; // segment's endpoint with lesser x will be potential connection point do { - if (hy <= p.y && hy >= p.next.y) { + if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) { var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y); if (x <= hx && x > qx) { qx = x; @@ -11620,7 +11658,7 @@ function findHoleBridge(hole, outerNode) { if (!m) return null; - if (hx === qx) return m.prev; // hole touches outer segment; pick lower endpoint + if (hx === qx) return m; // hole touches outer segment; pick leftmost endpoint // look for points inside the triangle of hole point, segment intersection and endpoint; // if there are no points found, we have a valid connection; @@ -11632,31 +11670,37 @@ function findHoleBridge(hole, outerNode) { tanMin = Infinity, tan; - p = m.next; + p = m; - while (p !== stop) { - if (hx >= p.x && p.x >= mx && + do { + if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) { tan = Math.abs(hy - p.y) / (hx - p.x); // tangential - if ((tan < tanMin || (tan === tanMin && p.x > m.x)) && locallyInside(p, hole)) { + if (locallyInside(p, hole) && + (tan < tanMin || (tan === tanMin && (p.x > m.x || (p.x === m.x && sectorContainsSector(m, p)))))) { m = p; tanMin = tan; } } p = p.next; - } + } while (p !== stop); return m; } +// whether sector in vertex m contains sector in vertex p in the same coordinates +function sectorContainsSector(m, p) { + return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0; +} + // interlink polygon nodes in z-order -function indexCurve(start, minX, minY, size) { +function indexCurve(start, minX, minY, invSize) { var p = start; do { - if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, size); + if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, invSize); p.prevZ = p.prev; p.nextZ = p.next; p = p.next; @@ -11689,20 +11733,11 @@ function sortLinked(list) { q = q.nextZ; if (!q) break; } - qSize = inSize; while (pSize > 0 || (qSize > 0 && q)) { - if (pSize === 0) { - e = q; - q = q.nextZ; - qSize--; - } else if (qSize === 0 || !q) { - e = p; - p = p.nextZ; - pSize--; - } else if (p.z <= q.z) { + if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) { e = p; p = p.nextZ; pSize--; @@ -11730,11 +11765,11 @@ function sortLinked(list) { return list; } -// z-order of a point given coords and size of the data bounding box -function zOrder(x, y, minX, minY, size) { +// z-order of a point given coords and inverse of the longer side of data bbox +function zOrder(x, y, minX, minY, invSize) { // coords are transformed into non-negative 15-bit integer range - x = 32767 * (x - minX) / size; - y = 32767 * (y - minY) / size; + x = 32767 * (x - minX) * invSize; + y = 32767 * (y - minY) * invSize; x = (x | (x << 8)) & 0x00FF00FF; x = (x | (x << 4)) & 0x0F0F0F0F; @@ -11754,7 +11789,7 @@ function getLeftmost(start) { var p = start, leftmost = start; do { - if (p.x < leftmost.x) leftmost = p; + if (p.x < leftmost.x || (p.x === leftmost.x && p.y < leftmost.y)) leftmost = p; p = p.next; } while (p !== start); @@ -11770,8 +11805,10 @@ function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) { // check if a diagonal between two polygon nodes is valid (lies in polygon interior) function isValidDiagonal(a, b) { - return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && - locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b); + return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && // dones't intersect other edges + (locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && // locally visible + (area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors + equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); // special zero-length case } // signed area of a triangle @@ -11786,10 +11823,28 @@ function equals(p1, p2) { // check if two segments intersect function intersects(p1, q1, p2, q2) { - if ((equals(p1, q1) && equals(p2, q2)) || - (equals(p1, q2) && equals(p2, q1))) return true; - return area(p1, q1, p2) > 0 !== area(p1, q1, q2) > 0 && - area(p2, q2, p1) > 0 !== area(p2, q2, q1) > 0; + var o1 = sign(area(p1, q1, p2)); + var o2 = sign(area(p1, q1, q2)); + var o3 = sign(area(p2, q2, p1)); + var o4 = sign(area(p2, q2, q1)); + + if (o1 !== o2 && o3 !== o4) return true; // general case + + if (o1 === 0 && onSegment(p1, p2, q1)) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1 + if (o2 === 0 && onSegment(p1, q2, q1)) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1 + if (o3 === 0 && onSegment(p2, p1, q2)) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2 + if (o4 === 0 && onSegment(p2, q1, q2)) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2 + + return false; +} + +// for collinear points p, q, r, check if point q lies on segment pr +function onSegment(p, q, r) { + return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y); +} + +function sign(num) { + return num > 0 ? 1 : num < 0 ? -1 : 0; } // check if a polygon diagonal intersects any polygon segments @@ -11818,7 +11873,8 @@ function middleInside(a, b) { px = (a.x + b.x) / 2, py = (a.y + b.y) / 2; do { - if (((p.y > py) !== (p.next.y > py)) && (px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x)) + if (((p.y > py) !== (p.next.y > py)) && p.next.y !== p.y && + (px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x)) inside = !inside; p = p.next; } while (p !== a); @@ -11875,14 +11931,14 @@ function removeNode(p) { } function Node(i, x, y) { - // vertice index in coordinates array + // vertex index in coordinates array this.i = i; // vertex coordinates this.x = x; this.y = y; - // previous and next vertice nodes in a polygon ring + // previous and next vertex nodes in a polygon ring this.prev = null; this.next = null; @@ -11952,6 +12008,7 @@ earcut.flatten = function (data) { } return result; }; +earcut_1.default = default_1; // Polygon builders var up_vec3 = [0, 0, 1]; @@ -13246,6 +13303,8 @@ Object.assign(Lines, { style.outline.join = draw.outline.join; style.outline.miter_limit = draw.outline.miter_limit; style.outline.texcoords = draw.outline.texcoords; + style.outline.extrude = draw.outline.extrude; + style.outline.z = draw.outline.z; style.outline.style = draw.outline.style; style.outline.variant = draw.outline.variant; // Explicitly defined outline order, or inherited from inner line @@ -13308,9 +13367,11 @@ Object.assign(Lines, { draw.outline.interactive = draw.outline.interactive != null ? draw.outline.interactive : draw.interactive; draw.outline.cap = draw.outline.cap || draw.cap; draw.outline.join = draw.outline.join || draw.join; - draw.outline.miter_limit = draw.outline.miter_limit != null ? draw.outline.miter_limit : draw.miter_limit; - draw.outline.offset = draw.offset; // always apply inline offset to outline - // outline inhertits dash pattern, but NOT explicit texture + draw.outline.miter_limit = draw.outline.miter_limit != null ? draw.outline.miter_limit : draw.miter_limit; // always apply inline values for offset and extrusion/height to outline + + draw.outline.offset = draw.offset; + draw.outline.extrude = draw.extrude; + draw.outline.z = draw.z; // outline inherits dash pattern, but NOT explicit texture var outline_style = this.styles[draw.outline.style]; @@ -14883,46 +14944,77 @@ function interpolateSegment(p, q, distance) { var TextSettings = { // A key for grouping all labels of the same text style (e.g. same Canvas state, to minimize state changes) key: function key(settings) { - return [settings.style, settings.weight, settings.family, settings.px_size, settings.fill, settings.stroke, settings.stroke_width, settings.transform, settings.text_wrap, settings.max_lines, settings.supersample, Utils.device_pixel_ratio].join('/'); + return [settings.style, settings.weight, settings.family, settings.px_size, settings.fill, settings.stroke, settings.stroke_width, settings.underline_width, settings.background_color, settings.background_width, settings.background_stroke_color, settings.background_stroke_width, settings.transform, settings.text_wrap, settings.max_lines, settings.supersample, Utils.device_pixel_ratio].join('/'); }, defaults: { style: 'normal', - weight: null, + weight: 'normal', size: '12px', px_size: 12, family: 'Helvetica', - fill: 'white', - fill_array: [1, 1, 1, 1], + fill: [1, 1, 1, 1], text_wrap: 15, max_lines: 5, align: 'center' }, - compute: function compute(feature, draw, context) { + compute: function compute(draw, context) { var style = {}; - draw.font = draw.font || this.defaults; // LineString labels can articulate while point labels cannot. Needed for future texture coordinate calculations. + draw.font = draw.font || this.defaults; + style.supersample = draw.supersample_text ? 1.5 : 1; // optionally render text at 150% to improve clarity + // LineString labels can articulate while point labels cannot. Needed for future texture coordinate calculations. - style.can_articulate = draw.can_articulate; // Use fill if specified, or default + style.can_articulate = draw.can_articulate; // Text fill - style.fill = draw.font.fill && StyleParser.evalCachedColorProperty(draw.font.fill, context); // optional alpha override + style.fill = StyleParser.evalCachedColorPropertyWithAlpha(draw.font.fill, draw.font.alpha, context); + style.fill = Utils.toCSSColor(style.fill); // convert to CSS for Canvas + // Text stroke - var alpha = StyleParser.evalCachedProperty(draw.font.alpha, context); + if (draw.font.stroke && draw.font.stroke.color) { + style.stroke = StyleParser.evalCachedColorPropertyWithAlpha(draw.font.stroke.color, draw.font.stroke.alpha, context); + style.stroke = Utils.toCSSColor(style.stroke); // convert to CSS for Canvas - if (alpha != null) { - style.fill = [].concat(style.fill ? style.fill : this.defaults.fill_array); // copy to avoid modifying underlying object + style.stroke_width = StyleParser.evalCachedProperty(draw.font.stroke.width, context); + } // Text underline + + + if (draw.font.underline === true && !style.can_articulate) { + style.underline_width = 1.5 * style.supersample; + } // Background box - style.fill[3] = alpha; - } - style.fill = style.fill && Utils.toCSSColor(style.fill) || this.defaults.fill; // convert to CSS for Canvas - // Font properties are modeled after CSS names: + if (draw.font.background && !style.can_articulate) { + // supported for point labels only + // Background fill + style.background_color = StyleParser.evalCachedColorPropertyWithAlpha(draw.font.background.color, draw.font.background.alpha, context); + style.background_color = Utils.toCSSColor(style.background_color); // convert to CSS for Canvas + + if (style.background_color) { + style.background_width = StyleParser.evalCachedProperty(draw.font.background.width, context); + } // Background stroke + + + style.background_stroke_color = draw.font.background.stroke && draw.font.background.stroke.color && StyleParser.evalCachedColorPropertyWithAlpha(draw.font.background.stroke.color, draw.font.background.stroke.alpha, context); + + if (style.background_stroke_color) { + style.background_stroke_color = Utils.toCSSColor(style.background_stroke_color); // convert to CSS for Canvas + // default background stroke to 1px when stroke color but no stroke width specified + + style.background_stroke_width = draw.font.background.stroke.width != null ? StyleParser.evalCachedProperty(draw.font.background.stroke.width, context) : 1; + } + } // Font properties are modeled after CSS names: // - family: Helvetica, Futura, etc. // - size: in pt, px, or em // - style: normal, italic, oblique // - weight: normal, bold, etc. // - transform: capitalize, uppercase, lowercase + // clamp weight to 1-1000 (see https://drafts.csswg.org/css-fonts-4/#valdef-font-weight-number) - style.style = draw.font.style || this.defaults.style; - style.weight = draw.font.weight || this.defaults.weight; + + style.weight = StyleParser.evalCachedProperty(draw.font.weight, context) || this.defaults.weight; + + if (typeof style.weight === 'number') { + style.weight = Math.min(Math.max(style.weight, 1), 1000); + } if (draw.font.family) { style.family = draw.font.family; @@ -14934,37 +15026,16 @@ var TextSettings = { style.family = this.defaults.family; } + style.style = draw.font.style || this.defaults.style; style.transform = draw.font.transform; // calculated pixel size - style.supersample = draw.supersample_text ? 1.5 : 1; // optionally render text at 150% to improve clarity - - style.px_size = StyleParser.evalCachedProperty(draw.font.px_size, context) * style.supersample; // Use stroke if specified - - if (draw.font.stroke && draw.font.stroke.color) { - style.stroke = StyleParser.evalCachedColorProperty(draw.font.stroke.color, context); - - if (style.stroke) { - // optional alpha override - var stroke_alpha = StyleParser.evalCachedProperty(draw.font.stroke.alpha, context); - - if (stroke_alpha != null) { - style.stroke = [].concat(style.stroke); // copy to avoid modifying underlying object - - style.stroke[3] = stroke_alpha; - } - - style.stroke = Utils.toCSSColor(style.stroke); // convert to CSS for Canvas - } - - style.stroke_width = StyleParser.evalCachedProperty(draw.font.stroke.width, context); - } - + style.px_size = StyleParser.evalCachedProperty(draw.font.px_size, context) * style.supersample; style.font_css = this.fontCSS(style); // Word wrap and text alignment // Not a font properties, but affect atlas of unique text textures var text_wrap = draw.text_wrap; // use explicitly set value - if (text_wrap == null && Geo$1.geometryType(feature.geometry.type) !== 'line') { + if (text_wrap == null && !style.can_articulate) { // point labels (for point and polygon features) have word wrap on w/default max length, // line labels default off text_wrap = true; @@ -15096,7 +15167,7 @@ var FontManager = { var $Try_1_Catch = function (e) { try { // Promise rejects, font is not available - log('debug', "Font face '" + family + "' is NOT available", options); + log('warn', "Font face '" + family + "' is NOT available", options, e); return $Try_1_Post(); } catch ($boundEx) { return $error($boundEx); @@ -15104,6 +15175,12 @@ var FontManager = { }; try { + // FontFaceObserver does not directly support variable fonts syntax, which allows for ranges, + // e.g. `font-weight: 100 800`. FontFaceObserver will insert the entire string value into a + // CSS `font` shorthand property, causing an error. To get around this, we simply take the first + // value, because as soon as one variant of the variable font is available, they all should be. + // See https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Fonts/Variable_Fonts_Guide + options.weight = typeof options.weight === 'string' ? options.weight.split(' ')[0] : options.weight; observer = new fontfaceobserver_standalone(family, options); return Promise.resolve(observer.load()).then(function ($await_6) { try { @@ -15526,6 +15603,8 @@ function () { this.vertical_text_buffer = 8; // vertical pixel padding around text this.horizontal_text_buffer = 4; // text styling such as italic emphasis is not measured by the Canvas API, so padding is necessary + + this.background_size = 4; // padding around label for optional background box (TODO: make configurable?) } var _proto = TextCanvas.prototype; @@ -15668,6 +15747,12 @@ function () { max_lines = _ref2.max_lines, _ref2$stroke_width = _ref2.stroke_width, stroke_width = _ref2$stroke_width === void 0 ? 0 : _ref2$stroke_width, + background_color = _ref2.background_color, + _ref2$background_stro = _ref2.background_stroke_width, + background_stroke_width = _ref2$background_stro === void 0 ? 0 : _ref2$background_stro, + background_width = _ref2.background_width, + _ref2$underline_width = _ref2.underline_width, + underline_width = _ref2$underline_width === void 0 ? 0 : _ref2$underline_width, supersample = _ref2.supersample; // Check cache first TextCanvas.cache.text[style] = TextCanvas.cache.text[style] || {}; @@ -15684,17 +15769,23 @@ function () { var str = this.applyTextTransform(text, transform); var ctx = this.context; var vertical_buffer = this.vertical_text_buffer * dpr; - var horizontal_buffer = dpr * (stroke_width + this.horizontal_text_buffer); - var leading = 2 * dpr; // make configurable and/or use Canvas TextMetrics when available + var horizontal_buffer = (stroke_width + this.horizontal_text_buffer) * dpr; + background_width = background_width != null ? background_width : this.background_size; // apply default background width + + var background_size = background_color || background_stroke_width ? (background_width + background_stroke_width) * dpr : 0; + var leading = (2 + underline_width + (underline_width ? stroke_width + 1 : 0)) * dpr; // adjust for underline and text stroke var line_height = this.px_size + leading; // px_size already in device pixels // Parse string into series of lines if it exceeds the text wrapping value or contains line breaks + // const multiline = MultiLine.parse(str, text_wrap, max_lines, line_height, ctx); - var multiline = MultiLine.parse(str, text_wrap, max_lines, line_height, ctx); // Final dimensions of text + var _MultiLine$parse = MultiLine.parse(str, text_wrap, max_lines, line_height, ctx), + width = _MultiLine$parse.width, + height = _MultiLine$parse.height, + lines = _MultiLine$parse.lines; - var height = multiline.height; - var width = multiline.width; - var lines = multiline.lines; + width += background_size * 2; + height += background_size * 2; var collision_size = [width / dpr, height / dpr]; var texture_size = [width + 2 * horizontal_buffer, height + 2 * vertical_buffer]; var logical_size = [texture_size[0] / dpr, texture_size[1] / dpr]; // Returns lines (w/per-line info for drawing) and text's overall bounding box + canvas size @@ -15705,111 +15796,156 @@ function () { collision_size: collision_size, texture_size: texture_size, logical_size: logical_size, - line_height: line_height + horizontal_buffer: horizontal_buffer, + vertical_buffer: vertical_buffer, + dpr: dpr, + line_height: line_height, + background_size: background_size } }; return TextCanvas.cache.text[style][text]; } // Draw multiple lines of text ; - _proto.drawTextMultiLine = function drawTextMultiLine(lines, _ref3, size, _ref4, type) { + _proto.drawTextMultiLine = function drawTextMultiLine(lines, _ref3, size, text_settings, label_type) { var x = _ref3[0], y = _ref3[1]; - var stroke = _ref4.stroke, - _ref4$stroke_width = _ref4.stroke_width, - stroke_width = _ref4$stroke_width === void 0 ? 0 : _ref4$stroke_width, - transform = _ref4.transform, - align = _ref4.align, - supersample = _ref4.supersample; - var line_height = size.line_height; - var height = y; - - for (var line_num = 0; line_num < lines.length; line_num++) { - var line = lines[line_num]; - this.drawTextLine(line, [x, height], size, { - stroke: stroke, - stroke_width: stroke_width, - transform: transform, - align: align, - supersample: supersample - }, type); - height += line_height; - } // Draw bounding boxes for debugging + var dpr = size.dpr, + collision_size = size.collision_size, + texture_size = size.texture_size, + line_height = size.line_height, + horizontal_buffer = size.horizontal_buffer, + vertical_buffer = size.vertical_buffer; // draw optional background box + + if (text_settings.background_color || text_settings.background_stroke_color) { + var background_stroke_color = text_settings.background_stroke_color; + var background_stroke_width = (text_settings.background_stroke_width || 0) * dpr; + this.context.save(); + if (text_settings.background_color) { + this.context.fillStyle = text_settings.background_color; + this.context.fillRect( // shift to "foreground" stroke texture for curved labels (separate stroke and fill textures) + x + horizontal_buffer + (label_type === 'curved' ? texture_size[0] : 0) + background_stroke_width, y + vertical_buffer + background_stroke_width, dpr * collision_size[0] - background_stroke_width * 2, dpr * collision_size[1] - background_stroke_width * 2); + } // optional stroke around background box - if (debugSettings$1.draw_label_collision_boxes) { - this.context.save(); - var dpr = Utils.device_pixel_ratio * supersample; - var horizontal_buffer = dpr * (this.horizontal_text_buffer + stroke_width); - var vertical_buffer = dpr * this.vertical_text_buffer; - var collision_size = size.collision_size; - var lineWidth = 2; - this.context.strokeStyle = 'blue'; - this.context.lineWidth = lineWidth; - this.context.strokeRect(x + horizontal_buffer, y + vertical_buffer, dpr * collision_size[0], dpr * collision_size[1]); - if (type === 'curved') { - this.context.strokeRect(x + size.texture_size[0] + horizontal_buffer, y + vertical_buffer, dpr * collision_size[0], dpr * collision_size[1]); + if (background_stroke_color && background_stroke_width) { + this.context.strokeStyle = background_stroke_color; + this.context.lineWidth = background_stroke_width; + this.context.strokeRect( // shift to "foreground" stroke texture for curved labels (separate stroke and fill textures) + x + horizontal_buffer + (label_type === 'curved' ? texture_size[0] : 0) + background_stroke_width * 0.5, y + vertical_buffer + background_stroke_width * 0.5, dpr * collision_size[0] - background_stroke_width, dpr * collision_size[1] - background_stroke_width); } this.context.restore(); - } + } // draw text - if (debugSettings$1.draw_label_texture_boxes) { - this.context.save(); - var texture_size = size.texture_size; - var _lineWidth = 2; - this.context.strokeStyle = 'green'; - this.context.lineWidth = _lineWidth; // stroke is applied internally, so the outer border is the edge of the texture - this.context.strokeRect(x + _lineWidth, y + _lineWidth, texture_size[0] - 2 * _lineWidth, texture_size[1] - 2 * _lineWidth); + var underline_width = text_settings.underline_width || 0; + var stroke_width = text_settings.stroke_width || 0; + var voffset = underline_width ? // offset text position to account for underline and text stroke + (underline_width + stroke_width + 1) * 0.5 * dpr : 0; + var ty = y - voffset; - if (type === 'curved') { - this.context.strokeRect(x + _lineWidth + size.texture_size[0], y + _lineWidth, texture_size[0] - 2 * _lineWidth, texture_size[1] - 2 * _lineWidth); - } - - this.context.restore(); + for (var line_num = 0; line_num < lines.length; line_num++) { + var line = lines[line_num]; + this.drawTextLine(line, [x, ty], size, text_settings, label_type); + ty += line_height; } + + this.drawTextDebug([x, y], size, label_type); } // Draw single line of text at specified location, adjusting for buffer and baseline ; - _proto.drawTextLine = function drawTextLine(line, _ref5, size, _ref6, type) { - var x = _ref5[0], - y = _ref5[1]; - var stroke = _ref6.stroke, - _ref6$stroke_width = _ref6.stroke_width, - stroke_width = _ref6$stroke_width === void 0 ? 0 : _ref6$stroke_width, - transform = _ref6.transform, - align = _ref6.align, - supersample = _ref6.supersample; - var dpr = Utils.device_pixel_ratio * supersample; - align = align || 'center'; - var vertical_buffer = this.vertical_text_buffer * dpr; - var texture_size = size.texture_size; - var line_height = size.line_height; - var horizontal_buffer = dpr * (stroke_width + this.horizontal_text_buffer); - var str = this.applyTextTransform(line.text, transform); // Text alignment + _proto.drawTextLine = function drawTextLine(line, _ref4, size, text_settings, type) { + var x = _ref4[0], + y = _ref4[1]; + var stroke = text_settings.stroke, + stroke_width = text_settings.stroke_width, + transform = text_settings.transform, + _text_settings$align = text_settings.align, + align = _text_settings$align === void 0 ? 'center' : _text_settings$align; + var horizontal_buffer = size.horizontal_buffer, + vertical_buffer = size.vertical_buffer, + texture_size = size.texture_size, + background_size = size.background_size, + line_height = size.line_height, + dpr = size.dpr; + var underline_width = (text_settings.underline_width || 0) * dpr; + var text = this.applyTextTransform(line.text, transform); // Text alignment var tx; if (align === 'left') { - tx = x + horizontal_buffer; + tx = x + horizontal_buffer + background_size; } else if (align === 'center') { tx = x + texture_size[0] / 2 - line.width / 2; } else if (align === 'right') { - tx = x + texture_size[0] - line.width - horizontal_buffer; + tx = x + texture_size[0] - line.width - horizontal_buffer - background_size; } // In the absence of better Canvas TextMetrics (not supported by browsers yet), // 0.75 buffer produces a better approximate vertical centering of text - var ty = y + vertical_buffer * 0.75 + line_height; // Draw stroke and fill separately for curved text. Offset stroke in texture atlas by shift. + var ty = y + vertical_buffer * 0.75 + line_height + background_size - underline_width * 0.5; // Draw stroke and fill separately for curved text. Offset stroke in texture atlas by shift. + + var shift = stroke && stroke_width > 0 && type === 'curved' ? texture_size[0] : 0; // optional text underline + + if (underline_width) { + this.context.save(); + this.context.strokeStyle = this.context.fillStyle; + this.context.lineWidth = underline_width; // adjust the underline to account for the text stroke + + var uy = ty + (stroke_width * 0.5 + 2) * dpr + this.context.lineWidth * 0.5; + this.context.beginPath(); + this.context.moveTo(tx + shift, uy); + this.context.lineTo(tx + shift + line.width, uy); + this.context.stroke(); + this.context.restore(); + } if (stroke && stroke_width > 0) { - var shift = type === 'curved' ? texture_size[0] : 0; - this.context.strokeText(str, tx + shift, ty); + this.context.strokeText(text, tx + shift, ty); } - this.context.fillText(str, tx, ty); + this.context.fillText(text, tx, ty); + } // Draw optional text debug boxes + ; + + _proto.drawTextDebug = function drawTextDebug(_ref5, size, label_type) { + var x = _ref5[0], + y = _ref5[1]; + var dpr = size.dpr, + horizontal_buffer = size.horizontal_buffer, + vertical_buffer = size.vertical_buffer, + texture_size = size.texture_size, + collision_size = size.collision_size; + var line_width = 2; + + if (debugSettings$1.draw_label_collision_boxes) { + this.context.save(); + this.context.strokeStyle = 'blue'; + this.context.lineWidth = line_width; + this.context.strokeRect(x + horizontal_buffer, y + vertical_buffer, dpr * collision_size[0], dpr * collision_size[1]); + + if (label_type === 'curved') { + this.context.strokeRect(x + texture_size[0] + horizontal_buffer, y + vertical_buffer, dpr * collision_size[0], dpr * collision_size[1]); + } + + this.context.restore(); + } + + if (debugSettings$1.draw_label_texture_boxes) { + this.context.save(); + this.context.strokeStyle = 'green'; + this.context.lineWidth = line_width; // stroke is applied internally, so the outer border is the edge of the texture + + this.context.strokeRect(x + line_width, y + line_width, texture_size[0] - 2 * line_width, texture_size[1] - 2 * line_width); + + if (label_type === 'curved') { + this.context.strokeRect(x + line_width + texture_size[0], y + line_width, texture_size[0] - 2 * line_width, texture_size[1] - 2 * line_width); + } + + this.context.restore(); + } }; _proto.rasterize = function rasterize(texts, textures, tile_id, texture_prefix, gl) { @@ -15955,6 +16091,7 @@ function () { } } else { var _lines2 = this.textSize(style, text, text_settings).lines; + var aligned_text_settings = Object.assign({}, text_settings); for (var align in text_info.align) { // Only render for current texture @@ -15962,13 +16099,8 @@ function () { continue; } - this.drawTextMultiLine(_lines2, text_info.align[align].texture_position, text_info.size, { - stroke: text_settings.stroke, - stroke_width: text_settings.stroke_width, - transform: text_settings.transform, - supersample: text_settings.supersample, - align: align - }); + aligned_text_settings.align = align; + this.drawTextMultiLine(_lines2, text_info.align[align].texture_position, text_info.size, aligned_text_settings); text_info.align[align].texcoords = Texture.getTexcoordsForSprite(text_info.align[align].texture_position, text_info.size.texture_size, texture.texture_size); } } @@ -16163,9 +16295,9 @@ function () { size = typeof size === 'string' ? size : String(size); // need a string for regex - var _ref7 = size.match(TextCanvas.font_size_re) || [], - px_size = _ref7[1], - units = _ref7[2]; + var _ref6 = size.match(TextCanvas.font_size_re) || [], + px_size = _ref6[1], + units = _ref6[2]; units = units || 'px'; @@ -16239,7 +16371,7 @@ var TextLabels = { } // Compute text style and layout settings for this feature label - var text_settings = TextSettings.compute(feature, draw, context); + var text_settings = TextSettings.compute(draw, context); var text_settings_key = TextSettings.key(text_settings); // first label in tile, or with this style? this.texts[tile.id] = this.texts[tile.id] || {}; @@ -16541,15 +16673,28 @@ var TextLabels = { // Font settings are required if (!draw || !draw.font || typeof draw.font !== 'object') { return; - } // Colors + } // Font weight - draw.font.fill = StyleParser.createPropertyCache(draw.font.fill); + draw.font.weight = StyleParser.createPropertyCache(draw.font.weight); // Colors + + draw.font.fill = StyleParser.createPropertyCache(draw.font.fill || TextSettings.defaults.fill); draw.font.alpha = StyleParser.createPropertyCache(draw.font.alpha); if (draw.font.stroke) { draw.font.stroke.color = StyleParser.createPropertyCache(draw.font.stroke.color); draw.font.stroke.alpha = StyleParser.createPropertyCache(draw.font.stroke.alpha); + } + + if (draw.font.background) { + draw.font.background.color = StyleParser.createPropertyCache(draw.font.background.color); + draw.font.background.alpha = StyleParser.createPropertyCache(draw.font.background.alpha); + draw.font.background.width = StyleParser.createPropertyCache(draw.font.background.width, StyleParser.parsePositiveNumber); + + if (draw.font.background.stroke) { + draw.font.background.stroke.color = StyleParser.createPropertyCache(draw.font.background.stroke.color); + draw.font.background.stroke.alpha = StyleParser.createPropertyCache(draw.font.background.stroke.alpha); + } } // Convert font and text stroke sizes @@ -16557,6 +16702,10 @@ var TextLabels = { if (draw.font.stroke && draw.font.stroke.width != null) { draw.font.stroke.width = StyleParser.createPropertyCache(draw.font.stroke.width, StyleParser.parsePositiveNumber); + } + + if (draw.font.background && draw.font.background.stroke && draw.font.background.stroke.width != null) { + draw.font.background.stroke.width = StyleParser.createPropertyCache(draw.font.background.stroke.width, StyleParser.parsePositiveNumber); } // Offset (2d array) @@ -23341,8 +23490,13 @@ function (_NetworkTileSource) { geometry.coordinates = coordinates; if (VectorTileFeature$1.types[feature.type] === 'Point') { - geometry.type = 'Point'; - geometry.coordinates = geometry.coordinates[0][0]; + if (coordinates.length === 1) { + geometry.type = 'Point'; + geometry.coordinates = geometry.coordinates[0][0]; + } else { + geometry.type = 'MultiPoint'; + geometry.coordinates = geometry.coordinates[0]; + } } else if (VectorTileFeature$1.types[feature.type] === 'LineString') { if (coordinates.length === 1) { geometry.type = 'LineString'; @@ -24828,11 +24982,11 @@ exports.global = _global; exports.require$$1$1 = _objectDp; exports.getKeys = _objectKeys; exports.gOPS = _objectGops; -exports.require$$0$1 = _objectPie; +exports.pIE = _objectPie; exports.toIObject = _toIobject; -exports.require$$0$2 = _objectGopn; -exports.require$$0$3 = _meta; -exports.require$$0$4 = _shared; +exports.require$$0$1 = _objectGopn; +exports.require$$0$2 = _meta; +exports.require$$0$3 = _shared; exports.DESCRIPTORS = _descriptors; exports.fails = _fails; exports.require$$22 = _objectCreate; @@ -24876,7 +25030,7 @@ exports.WorkerBroker = WorkerBroker$1; exports.Task = Task; exports.Tile = Tile; exports._createClass = _createClass; -exports.require$$0$5 = _typedArray; +exports.require$$0$4 = _typedArray; exports.StyleParser = StyleParser; exports.Texture = Texture; exports.debugSettings = debugSettings$1; @@ -25308,7 +25462,7 @@ var _enumKeys = function (it) { var getSymbols = __chunk_1.gOPS.f; if (getSymbols) { var symbols = getSymbols(it); - var isEnum = __chunk_1.require$$0$1.f; + var isEnum = __chunk_1.pIE.f; var i = 0; var key; while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key); @@ -25317,7 +25471,7 @@ var _enumKeys = function (it) { // fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window -var gOPN = __chunk_1.require$$0$2.f; +var gOPN = __chunk_1.require$$0$1.f; var toString = {}.toString; var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames @@ -25345,7 +25499,7 @@ var _objectGopnExt = { -var META = __chunk_1.require$$0$3.KEY; +var META = __chunk_1.require$$0$2.KEY; @@ -25375,9 +25529,9 @@ var PROTOTYPE = 'prototype'; var HIDDEN = __chunk_1.require$$0('_hidden'); var TO_PRIMITIVE = __chunk_1.require$$0('toPrimitive'); var isEnum = {}.propertyIsEnumerable; -var SymbolRegistry = __chunk_1.require$$0$4('symbol-registry'); -var AllSymbols = __chunk_1.require$$0$4('symbols'); -var OPSymbols = __chunk_1.require$$0$4('op-symbols'); +var SymbolRegistry = __chunk_1.require$$0$3('symbol-registry'); +var AllSymbols = __chunk_1.require$$0$3('symbols'); +var OPSymbols = __chunk_1.require$$0$3('op-symbols'); var ObjectProto = Object[PROTOTYPE]; var USE_NATIVE = typeof $Symbol == 'function'; var QObject = __chunk_1.global.QObject; @@ -25487,8 +25641,8 @@ if (!USE_NATIVE) { __chunk_1.require$$1$2.f = $getOwnPropertyDescriptor; __chunk_1.require$$1$1.f = $defineProperty; - __chunk_1.require$$0$2.f = _objectGopnExt.f = $getOwnPropertyNames; - __chunk_1.require$$0$1.f = $propertyIsEnumerable; + __chunk_1.require$$0$1.f = _objectGopnExt.f = $getOwnPropertyNames; + __chunk_1.pIE.f = $propertyIsEnumerable; __chunk_1.gOPS.f = $getOwnPropertySymbols; if (__chunk_1.DESCRIPTORS && !__chunk_1.LIBRARY) { @@ -46242,12 +46396,12 @@ function mainThreadLabelCollisionPass(tiles, view_zoom, hide_breach) { }); __chunk_1.Collision.addStyle('main', 'main'); // Adaptive collision grid, using a heuristic based on the tile with the most labels - max_tile_label_count = Math.max.apply(Math, [0].concat(Object.values(tiles).flatMap(function (t) { + max_tile_label_count = Math.max.apply(Math, [0].concat(Object.values(tiles).map(function (t) { return Object.values(t.meshes); - }).map(function (m) { - return m[0].labels && Object.keys(m[0].labels).length; - }).filter(function (x) { - return x; + }).flat().map(function (meshes) { + return Math.max.apply(Math, [0].concat(meshes.map(function (mesh) { + return mesh.labels ? Object.keys(mesh.labels).length : 0; + }))); }))); grid_divs = Math.floor(max_tile_label_count / __chunk_1.Geo.tile_size); @@ -46689,17 +46843,13 @@ function () { }); var proxy = false; this.forEachTile(function (tile) { - if (_this3.view.zoom_direction === 1) { - if (tile.visible && !tile.labeled) { - var parent = _this3.pyramid.getAncestor(tile); + if (tile.visible && !tile.labeled) { + var parent = _this3.pyramid.getAncestor(tile); - if (parent) { - parent.setProxyFor(tile); - proxy = true; - } - } - } else if (_this3.view.zoom_direction === -1) { - if (tile.visible && !tile.labeled) { + if (parent) { + parent.setProxyFor(tile); + proxy = true; + } else { var descendants = _this3.pyramid.getDescendants(tile); for (var i = 0; i < descendants.length; i++) { @@ -47075,7 +47225,7 @@ var RenderStateManager = function RenderStateManager(gl) { }); }; -__chunk_1.require$$0$5('Uint8', 1, function (init) { +__chunk_1.require$$0$4('Uint8', 1, function (init) { return function Uint8ClampedArray(data, byteOffset, length) { return init(this, data, byteOffset, length); }; @@ -49351,6 +49501,19 @@ function extendLeaflet(options) { file_type: this.options.sceneFileType, blocking: false }).then(function () { + if (!_this.options.attribution) { + var _arr = Object.entries(_this.scene.config.sources); + + for (var _i = 0; _i < _arr.length; _i++) { + var _arr$_i = _arr[_i], + value = _arr$_i[1]; + + if (value.attribution) { + map.attributionControl.addAttribution(value.attribution); + } + } + } + _this._updating_tangram = true; _this.updateSize(); @@ -49819,7 +49982,7 @@ return index; // Script modules can't expose exports try { Tangram.debug.ESM = false; // mark build as ES module - Tangram.debug.SHA = 'f0e7cf665ee5bfbc46bfffb6b64474f2caee7de0'; + Tangram.debug.SHA = '7baed5ea035938bc9de4116ff9a1ce039ddebb47'; if (false === true && typeof window === 'object') { window.Tangram = Tangram; } diff --git a/dist/tangram.debug.js.map b/dist/tangram.debug.js.map index bbdba354e..5cf979f4e 100644 --- a/dist/tangram.debug.js.map +++ b/dist/tangram.debug.js.map @@ -1 +1 @@ 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Symbol : uid)('Symbol.' + name));\n};\n\n$exports.store = store;\n","module.exports = function (it) {\n return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","var isObject = require('./_is-object');\nmodule.exports = function (it) {\n if (!isObject(it)) throw TypeError(it + ' is not an object!');\n return it;\n};\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (e) {\n return true;\n }\n};\n","// Thank's IE8 for his funny defineProperty\nmodule.exports = !require('./_fails')(function () {\n return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;\n});\n","var isObject = require('./_is-object');\nvar document = require('./_global').document;\n// typeof document.createElement is 'object' in old IE\nvar is = isObject(document) && isObject(document.createElement);\nmodule.exports = function (it) {\n return is ? document.createElement(it) : {};\n};\n","module.exports = !require('./_descriptors') && !require('./_fails')(function () {\n return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;\n});\n","// 7.1.1 ToPrimitive(input [, PreferredType])\nvar isObject = require('./_is-object');\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (it, S) {\n if (!isObject(it)) return it;\n var fn, val;\n if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;\n if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","var anObject = require('./_an-object');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar toPrimitive = require('./_to-primitive');\nvar dP = Object.defineProperty;\n\nexports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {\n anObject(O);\n P = toPrimitive(P, true);\n anObject(Attributes);\n if (IE8_DOM_DEFINE) try {\n return dP(O, P, Attributes);\n } catch (e) { /* empty */ }\n if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');\n if ('value' in Attributes) O[P] = Attributes.value;\n return O;\n};\n","module.exports = function (bitmap, value) {\n return {\n enumerable: !(bitmap & 1),\n configurable: !(bitmap & 2),\n writable: !(bitmap & 4),\n value: value\n };\n};\n","var dP = require('./_object-dp');\nvar createDesc = require('./_property-desc');\nmodule.exports = require('./_descriptors') ? function (object, key, value) {\n return dP.f(object, key, createDesc(1, value));\n} : function (object, key, value) {\n object[key] = value;\n return object;\n};\n","// 22.1.3.31 Array.prototype[@@unscopables]\nvar UNSCOPABLES = require('./_wks')('unscopables');\nvar ArrayProto = Array.prototype;\nif (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});\nmodule.exports = function (key) {\n ArrayProto[UNSCOPABLES][key] = true;\n};\n","module.exports = function (done, value) {\n return { value: value, done: !!done };\n};\n","module.exports = {};\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n return toString.call(it).slice(8, -1);\n};\n","// fallback for non-array-like ES3 and non-enumerable old V8 strings\nvar cof = require('./_cof');\n// eslint-disable-next-line no-prototype-builtins\nmodule.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {\n return cof(it) == 'String' ? it.split('') : Object(it);\n};\n","// 7.2.1 RequireObjectCoercible(argument)\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","// to indexed object, toObject with fallback for non-array-like ES3 strings\nvar IObject = require('./_iobject');\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return IObject(defined(it));\n};\n","var hasOwnProperty = {}.hasOwnProperty;\nmodule.exports = function (it, key) {\n return hasOwnProperty.call(it, key);\n};\n","var global = require('./_global');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar SRC = require('./_uid')('src');\nvar TO_STRING = 'toString';\nvar $toString = Function[TO_STRING];\nvar TPL = ('' + $toString).split(TO_STRING);\n\nrequire('./_core').inspectSource = function (it) {\n return $toString.call(it);\n};\n\n(module.exports = function (O, key, val, safe) {\n var isFunction = typeof val == 'function';\n if (isFunction) has(val, 'name') || hide(val, 'name', key);\n if (O[key] === val) return;\n if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));\n if (O === global) {\n O[key] = val;\n } else if (!safe) {\n delete O[key];\n hide(O, key, val);\n } else if (O[key]) {\n O[key] = val;\n } else {\n hide(O, key, val);\n }\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, TO_STRING, function toString() {\n return typeof this == 'function' && this[SRC] || $toString.call(this);\n});\n","module.exports = function (it) {\n if (typeof it != 'function') throw TypeError(it + ' is not a function!');\n return it;\n};\n","// optional / simple context binding\nvar aFunction = require('./_a-function');\nmodule.exports = function (fn, that, length) {\n aFunction(fn);\n if (that === undefined) return fn;\n switch (length) {\n case 1: return function (a) {\n return fn.call(that, a);\n };\n case 2: return function (a, b) {\n return fn.call(that, a, b);\n };\n case 3: return function (a, b, c) {\n return fn.call(that, a, b, c);\n };\n }\n return function (/* ...args */) {\n return fn.apply(that, arguments);\n };\n};\n","var global = require('./_global');\nvar core = require('./_core');\nvar hide = require('./_hide');\nvar redefine = require('./_redefine');\nvar ctx = require('./_ctx');\nvar PROTOTYPE = 'prototype';\n\nvar $export = function (type, name, source) {\n var IS_FORCED = type & $export.F;\n var IS_GLOBAL = type & $export.G;\n var IS_STATIC = type & $export.S;\n var IS_PROTO = type & $export.P;\n var IS_BIND = type & $export.B;\n var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];\n var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});\n var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});\n var key, own, out, exp;\n if (IS_GLOBAL) source = name;\n for (key in source) {\n // contains in native\n own = !IS_FORCED && target && target[key] !== undefined;\n // export native or passed\n out = (own ? target : source)[key];\n // bind timers to global for call from export context\n exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;\n // extend global\n if (target) redefine(target, key, out, type & $export.U);\n // export\n if (exports[key] != out) hide(exports, key, exp);\n if (IS_PROTO && expProto[key] != out) expProto[key] = out;\n }\n};\nglobal.core = core;\n// type bitmap\n$export.F = 1; // forced\n$export.G = 2; // global\n$export.S = 4; // static\n$export.P = 8; // proto\n$export.B = 16; // bind\n$export.W = 32; // wrap\n$export.U = 64; // safe\n$export.R = 128; // real proto method for `library`\nmodule.exports = $export;\n","// 7.1.4 ToInteger\nvar ceil = Math.ceil;\nvar floor = Math.floor;\nmodule.exports = function (it) {\n return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);\n};\n","// 7.1.15 ToLength\nvar toInteger = require('./_to-integer');\nvar min = Math.min;\nmodule.exports = function (it) {\n return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991\n};\n","var toInteger = require('./_to-integer');\nvar max = Math.max;\nvar min = Math.min;\nmodule.exports = function (index, length) {\n index = toInteger(index);\n return index < 0 ? max(index + length, 0) : min(index, length);\n};\n","// false -> Array#indexOf\n// true -> Array#includes\nvar toIObject = require('./_to-iobject');\nvar toLength = require('./_to-length');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nmodule.exports = function (IS_INCLUDES) {\n return function ($this, el, fromIndex) {\n var O = toIObject($this);\n var length = toLength(O.length);\n var index = toAbsoluteIndex(fromIndex, length);\n var value;\n // Array#includes uses SameValueZero equality algorithm\n // eslint-disable-next-line no-self-compare\n if (IS_INCLUDES && el != el) while (length > index) {\n value = O[index++];\n // eslint-disable-next-line no-self-compare\n if (value != value) return true;\n // Array#indexOf ignores holes, Array#includes - not\n } else for (;length > index; index++) if (IS_INCLUDES || index in O) {\n if (O[index] === el) return IS_INCLUDES || index || 0;\n } return !IS_INCLUDES && -1;\n };\n};\n","var shared = require('./_shared')('keys');\nvar uid = require('./_uid');\nmodule.exports = function (key) {\n return shared[key] || (shared[key] = uid(key));\n};\n","var has = require('./_has');\nvar toIObject = require('./_to-iobject');\nvar arrayIndexOf = require('./_array-includes')(false);\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\n\nmodule.exports = function (object, names) {\n var O = toIObject(object);\n var i = 0;\n var result = [];\n var key;\n for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);\n // Don't enum bug & hidden keys\n while (names.length > i) if (has(O, key = names[i++])) {\n ~arrayIndexOf(result, key) || result.push(key);\n }\n return result;\n};\n","// IE 8- don't enum bug keys\nmodule.exports = (\n 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'\n).split(',');\n","// 19.1.2.14 / 15.2.3.14 Object.keys(O)\nvar $keys = require('./_object-keys-internal');\nvar enumBugKeys = require('./_enum-bug-keys');\n\nmodule.exports = Object.keys || function keys(O) {\n return $keys(O, enumBugKeys);\n};\n","var dP = require('./_object-dp');\nvar anObject = require('./_an-object');\nvar getKeys = require('./_object-keys');\n\nmodule.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = getKeys(Properties);\n var length = keys.length;\n var i = 0;\n var P;\n while (length > i) dP.f(O, P = keys[i++], Properties[P]);\n return O;\n};\n","var document = require('./_global').document;\nmodule.exports = document && document.documentElement;\n","// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\nvar anObject = require('./_an-object');\nvar dPs = require('./_object-dps');\nvar enumBugKeys = require('./_enum-bug-keys');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar Empty = function () { /* empty */ };\nvar PROTOTYPE = 'prototype';\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar createDict = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = require('./_dom-create')('iframe');\n var i = enumBugKeys.length;\n var lt = '<';\n var gt = '>';\n var iframeDocument;\n iframe.style.display = 'none';\n require('./_html').appendChild(iframe);\n iframe.src = 'javascript:'; // eslint-disable-line no-script-url\n // createDict = iframe.contentWindow.Object;\n // html.removeChild(iframe);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);\n iframeDocument.close();\n createDict = iframeDocument.F;\n while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];\n return createDict();\n};\n\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n Empty[PROTOTYPE] = anObject(O);\n result = new Empty();\n Empty[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = createDict();\n return Properties === undefined ? result : dPs(result, Properties);\n};\n","var def = require('./_object-dp').f;\nvar has = require('./_has');\nvar TAG = require('./_wks')('toStringTag');\n\nmodule.exports = function (it, tag, stat) {\n if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });\n};\n","'use strict';\nvar create = require('./_object-create');\nvar descriptor = require('./_property-desc');\nvar setToStringTag = require('./_set-to-string-tag');\nvar IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nrequire('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });\n\nmodule.exports = function (Constructor, NAME, next) {\n Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });\n setToStringTag(Constructor, NAME + ' Iterator');\n};\n","// 7.1.13 ToObject(argument)\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return Object(defined(it));\n};\n","// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)\nvar has = require('./_has');\nvar toObject = require('./_to-object');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar ObjectProto = Object.prototype;\n\nmodule.exports = Object.getPrototypeOf || function (O) {\n O = toObject(O);\n if (has(O, IE_PROTO)) return O[IE_PROTO];\n if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n return O.constructor.prototype;\n } return O instanceof Object ? ObjectProto : null;\n};\n","'use strict';\nvar LIBRARY = require('./_library');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar hide = require('./_hide');\nvar Iterators = require('./_iterators');\nvar $iterCreate = require('./_iter-create');\nvar setToStringTag = require('./_set-to-string-tag');\nvar getPrototypeOf = require('./_object-gpo');\nvar ITERATOR = require('./_wks')('iterator');\nvar BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`\nvar FF_ITERATOR = '@@iterator';\nvar KEYS = 'keys';\nvar VALUES = 'values';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {\n $iterCreate(Constructor, NAME, next);\n var getMethod = function (kind) {\n if (!BUGGY && kind in proto) return proto[kind];\n switch (kind) {\n case KEYS: return function keys() { return new Constructor(this, kind); };\n case VALUES: return function values() { return new Constructor(this, kind); };\n } return function entries() { return new Constructor(this, kind); };\n };\n var TAG = NAME + ' Iterator';\n var DEF_VALUES = DEFAULT == VALUES;\n var VALUES_BUG = false;\n var proto = Base.prototype;\n var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];\n var $default = $native || getMethod(DEFAULT);\n var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;\n var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;\n var methods, key, IteratorPrototype;\n // Fix native\n if ($anyNative) {\n IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));\n if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {\n // Set @@toStringTag to native iterators\n setToStringTag(IteratorPrototype, TAG, true);\n // fix for some old engines\n if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);\n }\n }\n // fix Array#{values, @@iterator}.name in V8 / FF\n if (DEF_VALUES && $native && $native.name !== VALUES) {\n VALUES_BUG = true;\n $default = function values() { return $native.call(this); };\n }\n // Define iterator\n if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {\n hide(proto, ITERATOR, $default);\n }\n // Plug for library\n Iterators[NAME] = $default;\n Iterators[TAG] = returnThis;\n if (DEFAULT) {\n methods = {\n values: DEF_VALUES ? $default : getMethod(VALUES),\n keys: IS_SET ? $default : getMethod(KEYS),\n entries: $entries\n };\n if (FORCED) for (key in methods) {\n if (!(key in proto)) redefine(proto, key, methods[key]);\n } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);\n }\n return methods;\n};\n","'use strict';\nvar addToUnscopables = require('./_add-to-unscopables');\nvar step = require('./_iter-step');\nvar Iterators = require('./_iterators');\nvar toIObject = require('./_to-iobject');\n\n// 22.1.3.4 Array.prototype.entries()\n// 22.1.3.13 Array.prototype.keys()\n// 22.1.3.29 Array.prototype.values()\n// 22.1.3.30 Array.prototype[@@iterator]()\nmodule.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {\n this._t = toIObject(iterated); // target\n this._i = 0; // next index\n this._k = kind; // kind\n// 22.1.5.2.1 %ArrayIteratorPrototype%.next()\n}, function () {\n var O = this._t;\n var kind = this._k;\n var index = this._i++;\n if (!O || index >= O.length) {\n this._t = undefined;\n return step(1);\n }\n if (kind == 'keys') return step(0, index);\n if (kind == 'values') return step(0, O[index]);\n return step(0, [index, O[index]]);\n}, 'values');\n\n// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)\nIterators.Arguments = Iterators.Array;\n\naddToUnscopables('keys');\naddToUnscopables('values');\naddToUnscopables('entries');\n","var $iterators = require('./es6.array.iterator');\nvar getKeys = require('./_object-keys');\nvar redefine = require('./_redefine');\nvar global = require('./_global');\nvar hide = require('./_hide');\nvar Iterators = require('./_iterators');\nvar wks = require('./_wks');\nvar ITERATOR = wks('iterator');\nvar TO_STRING_TAG = wks('toStringTag');\nvar ArrayValues = Iterators.Array;\n\nvar DOMIterables = {\n CSSRuleList: true, // TODO: Not spec compliant, should be false.\n CSSStyleDeclaration: false,\n CSSValueList: false,\n ClientRectList: false,\n DOMRectList: false,\n DOMStringList: false,\n DOMTokenList: true,\n DataTransferItemList: false,\n FileList: false,\n HTMLAllCollection: false,\n HTMLCollection: false,\n HTMLFormElement: false,\n HTMLSelectElement: false,\n MediaList: true, // TODO: Not spec compliant, should be false.\n MimeTypeArray: false,\n NamedNodeMap: false,\n NodeList: true,\n PaintRequestList: false,\n Plugin: false,\n PluginArray: false,\n SVGLengthList: false,\n SVGNumberList: false,\n SVGPathSegList: false,\n SVGPointList: false,\n SVGStringList: false,\n SVGTransformList: false,\n SourceBufferList: false,\n StyleSheetList: true, // TODO: Not spec compliant, should be false.\n TextTrackCueList: false,\n TextTrackList: false,\n TouchList: false\n};\n\nfor (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {\n var NAME = collections[i];\n var explicit = DOMIterables[NAME];\n var Collection = global[NAME];\n var proto = Collection && Collection.prototype;\n var key;\n if (proto) {\n if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);\n if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);\n Iterators[NAME] = ArrayValues;\n if (explicit) for (key in $iterators) if (!proto[key]) redefine(proto, key, $iterators[key], true);\n }\n}\n","exports.f = Object.getOwnPropertySymbols;\n","exports.f = {}.propertyIsEnumerable;\n","'use strict';\n// 19.1.2.1 Object.assign(target, source, ...)\nvar getKeys = require('./_object-keys');\nvar gOPS = require('./_object-gops');\nvar pIE = require('./_object-pie');\nvar toObject = require('./_to-object');\nvar IObject = require('./_iobject');\nvar $assign = Object.assign;\n\n// should work with symbols and should have deterministic property order (V8 bug)\nmodule.exports = !$assign || require('./_fails')(function () {\n var A = {};\n var B = {};\n // eslint-disable-next-line no-undef\n var S = Symbol();\n var K = 'abcdefghijklmnopqrst';\n A[S] = 7;\n K.split('').forEach(function (k) { B[k] = k; });\n return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var aLen = arguments.length;\n var index = 1;\n var getSymbols = gOPS.f;\n var isEnum = pIE.f;\n while (aLen > index) {\n var S = IObject(arguments[index++]);\n var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];\n } return T;\n} : $assign;\n","// 19.1.3.1 Object.assign(target, source)\nvar $export = require('./_export');\n\n$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });\n","/*jshint worker: true*/\n\n// Mark thread as main or worker\nconst Thread = {};\n\ntry {\n if (window instanceof Window && window.document instanceof HTMLDocument) { // jshint ignore:line\n Thread.is_worker = false;\n Thread.is_main = true;\n }\n}\ncatch(e) {\n Thread.is_worker = true;\n Thread.is_main = false;\n\n // Patch for 3rd party libs that require these globals to be present. Specifically, FontFaceObserver.\n // Brittle solution but allows that library to load on worker threads.\n self.window = { document: {} };\n self.document = self.window.document;\n}\n\nexport default Thread;\n","var toInteger = require('./_to-integer');\nvar defined = require('./_defined');\n// true -> String#at\n// false -> String#codePointAt\nmodule.exports = function (TO_STRING) {\n return function (that, pos) {\n var s = String(defined(that));\n var i = toInteger(pos);\n var l = s.length;\n var a, b;\n if (i < 0 || i >= l) return TO_STRING ? '' : undefined;\n a = s.charCodeAt(i);\n return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff\n ? TO_STRING ? s.charAt(i) : a\n : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;\n };\n};\n","'use strict';\nvar at = require('./_string-at')(true);\n\n // `AdvanceStringIndex` abstract operation\n// https://tc39.github.io/ecma262/#sec-advancestringindex\nmodule.exports = function (S, index, unicode) {\n return index + (unicode ? at(S, index).length : 1);\n};\n","// getting tag from 19.1.3.6 Object.prototype.toString()\nvar cof = require('./_cof');\nvar TAG = require('./_wks')('toStringTag');\n// ES3 wrong here\nvar ARG = cof(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (e) { /* empty */ }\n};\n\nmodule.exports = function (it) {\n var O, T, B;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T\n // builtinTag case\n : ARG ? cof(O)\n // ES3 arguments fallback\n : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;\n};\n","'use strict';\n\nvar classof = require('./_classof');\nvar builtinExec = RegExp.prototype.exec;\n\n // `RegExpExec` abstract operation\n// https://tc39.github.io/ecma262/#sec-regexpexec\nmodule.exports = function (R, S) {\n var exec = R.exec;\n if (typeof exec === 'function') {\n var result = exec.call(R, S);\n if (typeof result !== 'object') {\n throw new TypeError('RegExp exec method returned something other than an Object or null');\n }\n return result;\n }\n if (classof(R) !== 'RegExp') {\n throw new TypeError('RegExp#exec called on incompatible receiver');\n }\n return builtinExec.call(R, S);\n};\n","'use strict';\n// 21.2.5.3 get RegExp.prototype.flags\nvar anObject = require('./_an-object');\nmodule.exports = function () {\n var that = anObject(this);\n var result = '';\n if (that.global) result += 'g';\n if (that.ignoreCase) result += 'i';\n if (that.multiline) result += 'm';\n if (that.unicode) result += 'u';\n if (that.sticky) result += 'y';\n return result;\n};\n","'use strict';\n\nvar regexpFlags = require('./_flags');\n\nvar nativeExec = RegExp.prototype.exec;\n// This always refers to the native implementation, because the\n// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,\n// which loads this file before patching the method.\nvar nativeReplace = String.prototype.replace;\n\nvar patchedExec = nativeExec;\n\nvar LAST_INDEX = 'lastIndex';\n\nvar UPDATES_LAST_INDEX_WRONG = (function () {\n var re1 = /a/,\n re2 = /b*/g;\n nativeExec.call(re1, 'a');\n nativeExec.call(re2, 'a');\n return re1[LAST_INDEX] !== 0 || re2[LAST_INDEX] !== 0;\n})();\n\n// nonparticipating capturing group, copied from es5-shim's String#split patch.\nvar NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;\n\nvar PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;\n\nif (PATCH) {\n patchedExec = function exec(str) {\n var re = this;\n var lastIndex, reCopy, match, i;\n\n if (NPCG_INCLUDED) {\n reCopy = new RegExp('^' + re.source + '$(?!\\\\s)', regexpFlags.call(re));\n }\n if (UPDATES_LAST_INDEX_WRONG) lastIndex = re[LAST_INDEX];\n\n match = nativeExec.call(re, str);\n\n if (UPDATES_LAST_INDEX_WRONG && match) {\n re[LAST_INDEX] = re.global ? match.index + match[0].length : lastIndex;\n }\n if (NPCG_INCLUDED && match && match.length > 1) {\n // Fix browsers whose `exec` methods don't consistently return `undefined`\n // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/\n // eslint-disable-next-line no-loop-func\n nativeReplace.call(match[0], reCopy, function () {\n for (i = 1; i < arguments.length - 2; i++) {\n if (arguments[i] === undefined) match[i] = undefined;\n }\n });\n }\n\n return match;\n };\n}\n\nmodule.exports = patchedExec;\n","'use strict';\nvar regexpExec = require('./_regexp-exec');\nrequire('./_export')({\n target: 'RegExp',\n proto: true,\n forced: regexpExec !== /./.exec\n}, {\n exec: regexpExec\n});\n","'use strict';\nrequire('./es6.regexp.exec');\nvar redefine = require('./_redefine');\nvar hide = require('./_hide');\nvar fails = require('./_fails');\nvar defined = require('./_defined');\nvar wks = require('./_wks');\nvar regexpExec = require('./_regexp-exec');\n\nvar SPECIES = wks('species');\n\nvar REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {\n // #replace needs built-in support for named groups.\n // #match works fine because it just return the exec results, even if it has\n // a \"grops\" property.\n var re = /./;\n re.exec = function () {\n var result = [];\n result.groups = { a: '7' };\n return result;\n };\n return ''.replace(re, '$') !== '7';\n});\n\nvar SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = (function () {\n // Chrome 51 has a buggy \"split\" implementation when RegExp#exec !== nativeExec\n var re = /(?:)/;\n var originalExec = re.exec;\n re.exec = function () { return originalExec.apply(this, arguments); };\n var result = 'ab'.split(re);\n return result.length === 2 && result[0] === 'a' && result[1] === 'b';\n})();\n\nmodule.exports = function (KEY, length, exec) {\n var SYMBOL = wks(KEY);\n\n var DELEGATES_TO_SYMBOL = !fails(function () {\n // String methods call symbol-named RegEp methods\n var O = {};\n O[SYMBOL] = function () { return 7; };\n return ''[KEY](O) != 7;\n });\n\n var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL ? !fails(function () {\n // Symbol-named RegExp methods call .exec\n var execCalled = false;\n var re = /a/;\n re.exec = function () { execCalled = true; return null; };\n if (KEY === 'split') {\n // RegExp[@@split] doesn't call the regex's exec method, but first creates\n // a new one. We need to return the patched regex when creating the new one.\n re.constructor = {};\n re.constructor[SPECIES] = function () { return re; };\n }\n re[SYMBOL]('');\n return !execCalled;\n }) : undefined;\n\n if (\n !DELEGATES_TO_SYMBOL ||\n !DELEGATES_TO_EXEC ||\n (KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||\n (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)\n ) {\n var nativeRegExpMethod = /./[SYMBOL];\n var fns = exec(\n defined,\n SYMBOL,\n ''[KEY],\n function maybeCallNative(nativeMethod, regexp, str, arg2, forceStringMethod) {\n if (regexp.exec === regexpExec) {\n if (DELEGATES_TO_SYMBOL && !forceStringMethod) {\n // The native String method already delegates to @@method (this\n // polyfilled function), leasing to infinite recursion.\n // We avoid it by directly calling the native @@method method.\n return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };\n }\n return { done: true, value: nativeMethod.call(str, regexp, arg2) };\n }\n return { done: false };\n }\n );\n var strfn = fns[0];\n var rxfn = fns[1];\n\n redefine(String.prototype, KEY, strfn);\n hide(RegExp.prototype, SYMBOL, length == 2\n // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)\n // 21.2.5.11 RegExp.prototype[@@split](string, limit)\n ? function (string, arg) { return rxfn.call(string, this, arg); }\n // 21.2.5.6 RegExp.prototype[@@match](string)\n // 21.2.5.9 RegExp.prototype[@@search](string)\n : function (string) { return rxfn.call(string, this); }\n );\n }\n};\n","'use strict';\n\nvar anObject = require('./_an-object');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar toInteger = require('./_to-integer');\nvar advanceStringIndex = require('./_advance-string-index');\nvar regExpExec = require('./_regexp-exec-abstract');\nvar max = Math.max;\nvar min = Math.min;\nvar floor = Math.floor;\nvar SUBSTITUTION_SYMBOLS = /\\$([$&`']|\\d\\d?|<[^>]*>)/g;\nvar SUBSTITUTION_SYMBOLS_NO_NAMED = /\\$([$&`']|\\d\\d?)/g;\n\nvar maybeToString = function (it) {\n return it === undefined ? it : String(it);\n};\n\n// @@replace logic\nrequire('./_fix-re-wks')('replace', 2, function (defined, REPLACE, $replace, maybeCallNative) {\n return [\n // `String.prototype.replace` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.replace\n function replace(searchValue, replaceValue) {\n var O = defined(this);\n var fn = searchValue == undefined ? undefined : searchValue[REPLACE];\n return fn !== undefined\n ? fn.call(searchValue, O, replaceValue)\n : $replace.call(String(O), searchValue, replaceValue);\n },\n // `RegExp.prototype[@@replace]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace\n function (regexp, replaceValue) {\n var res = maybeCallNative($replace, regexp, this, replaceValue);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n var functionalReplace = typeof replaceValue === 'function';\n if (!functionalReplace) replaceValue = String(replaceValue);\n var global = rx.global;\n if (global) {\n var fullUnicode = rx.unicode;\n rx.lastIndex = 0;\n }\n var results = [];\n while (true) {\n var result = regExpExec(rx, S);\n if (result === null) break;\n results.push(result);\n if (!global) break;\n var matchStr = String(result[0]);\n if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);\n }\n var accumulatedResult = '';\n var nextSourcePosition = 0;\n for (var i = 0; i < results.length; i++) {\n result = results[i];\n var matched = String(result[0]);\n var position = max(min(toInteger(result.index), S.length), 0);\n var captures = [];\n // NOTE: This is equivalent to\n // captures = result.slice(1).map(maybeToString)\n // but for some reason `nativeSlice.call(result, 1, result.length)` (called in\n // the slice polyfill when slicing native arrays) \"doesn't work\" in safari 9 and\n // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.\n for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));\n var namedCaptures = result.groups;\n if (functionalReplace) {\n var replacerArgs = [matched].concat(captures, position, S);\n if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);\n var replacement = String(replaceValue.apply(undefined, replacerArgs));\n } else {\n replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);\n }\n if (position >= nextSourcePosition) {\n accumulatedResult += S.slice(nextSourcePosition, position) + replacement;\n nextSourcePosition = position + matched.length;\n }\n }\n return accumulatedResult + S.slice(nextSourcePosition);\n }\n ];\n\n // https://tc39.github.io/ecma262/#sec-getsubstitution\n function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {\n var tailPos = position + matched.length;\n var m = captures.length;\n var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;\n if (namedCaptures !== undefined) {\n namedCaptures = toObject(namedCaptures);\n symbols = SUBSTITUTION_SYMBOLS;\n }\n return $replace.call(replacement, symbols, function (match, ch) {\n var capture;\n switch (ch.charAt(0)) {\n case '$': return '$';\n case '&': return matched;\n case '`': return str.slice(0, position);\n case \"'\": return str.slice(tailPos);\n case '<':\n capture = namedCaptures[ch.slice(1, -1)];\n break;\n default: // \\d\\d?\n var n = +ch;\n if (n === 0) return match;\n if (n > m) {\n var f = floor(n / 10);\n if (f === 0) return match;\n if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);\n return match;\n }\n capture = captures[n - 1];\n }\n return capture === undefined ? '' : capture;\n });\n }\n});\n","'use strict';\nvar fails = require('./_fails');\n\nmodule.exports = function (method, arg) {\n return !!method && fails(function () {\n // eslint-disable-next-line no-useless-call\n arg ? method.call(null, function () { /* empty */ }, 1) : method.call(null);\n });\n};\n","'use strict';\nvar $export = require('./_export');\nvar aFunction = require('./_a-function');\nvar toObject = require('./_to-object');\nvar fails = require('./_fails');\nvar $sort = [].sort;\nvar test = [1, 2, 3];\n\n$export($export.P + $export.F * (fails(function () {\n // IE8-\n test.sort(undefined);\n}) || !fails(function () {\n // V8 bug\n test.sort(null);\n // Old WebKit\n}) || !require('./_strict-method')($sort)), 'Array', {\n // 22.1.3.25 Array.prototype.sort(comparefn)\n sort: function sort(comparefn) {\n return comparefn === undefined\n ? $sort.call(toObject(this))\n : $sort.call(toObject(this), aFunction(comparefn));\n }\n});\n","var META = require('./_uid')('meta');\nvar isObject = require('./_is-object');\nvar has = require('./_has');\nvar setDesc = require('./_object-dp').f;\nvar id = 0;\nvar isExtensible = Object.isExtensible || function () {\n return true;\n};\nvar FREEZE = !require('./_fails')(function () {\n return isExtensible(Object.preventExtensions({}));\n});\nvar setMeta = function (it) {\n setDesc(it, META, { value: {\n i: 'O' + ++id, // object ID\n w: {} // weak collections IDs\n } });\n};\nvar fastKey = function (it, create) {\n // return primitive with prefix\n if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return 'F';\n // not necessary to add metadata\n if (!create) return 'E';\n // add missing metadata\n setMeta(it);\n // return object ID\n } return it[META].i;\n};\nvar getWeak = function (it, create) {\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return true;\n // not necessary to add metadata\n if (!create) return false;\n // add missing metadata\n setMeta(it);\n // return hash weak collections IDs\n } return it[META].w;\n};\n// add metadata on freeze-family methods calling\nvar onFreeze = function (it) {\n if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);\n return it;\n};\nvar meta = module.exports = {\n KEY: META,\n NEED: false,\n fastKey: fastKey,\n getWeak: getWeak,\n onFreeze: onFreeze\n};\n","// 7.2.2 IsArray(argument)\nvar cof = require('./_cof');\nmodule.exports = Array.isArray || function isArray(arg) {\n return cof(arg) == 'Array';\n};\n","// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)\nvar $keys = require('./_object-keys-internal');\nvar hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');\n\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n return $keys(O, hiddenKeys);\n};\n","var pIE = require('./_object-pie');\nvar createDesc = require('./_property-desc');\nvar toIObject = require('./_to-iobject');\nvar toPrimitive = require('./_to-primitive');\nvar has = require('./_has');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar gOPD = Object.getOwnPropertyDescriptor;\n\nexports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {\n O = toIObject(O);\n P = toPrimitive(P, true);\n if (IE8_DOM_DEFINE) try {\n return gOPD(O, P);\n } catch (e) { /* empty */ }\n if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);\n};\n","'use strict';\nvar $at = require('./_string-at')(true);\n\n// 21.1.3.27 String.prototype[@@iterator]()\nrequire('./_iter-define')(String, 'String', function (iterated) {\n this._t = String(iterated); // target\n this._i = 0; // next index\n// 21.1.5.2.1 %StringIteratorPrototype%.next()\n}, function () {\n var O = this._t;\n var index = this._i;\n var point;\n if (index >= O.length) return { value: undefined, done: true };\n point = $at(O, index);\n this._i += point.length;\n return { value: point, done: false };\n});\n","module.exports = function (it, Constructor, name, forbiddenField) {\n if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {\n throw TypeError(name + ': incorrect invocation!');\n } return it;\n};\n","// call something on iterator step with safe closing on error\nvar anObject = require('./_an-object');\nmodule.exports = function (iterator, fn, value, entries) {\n try {\n return entries ? fn(anObject(value)[0], value[1]) : fn(value);\n // 7.4.6 IteratorClose(iterator, completion)\n } catch (e) {\n var ret = iterator['return'];\n if (ret !== undefined) anObject(ret.call(iterator));\n throw e;\n }\n};\n","// check on default Array iterator\nvar Iterators = require('./_iterators');\nvar ITERATOR = require('./_wks')('iterator');\nvar ArrayProto = Array.prototype;\n\nmodule.exports = function (it) {\n return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);\n};\n","var classof = require('./_classof');\nvar ITERATOR = require('./_wks')('iterator');\nvar Iterators = require('./_iterators');\nmodule.exports = require('./_core').getIteratorMethod = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","var ctx = require('./_ctx');\nvar call = require('./_iter-call');\nvar isArrayIter = require('./_is-array-iter');\nvar anObject = require('./_an-object');\nvar toLength = require('./_to-length');\nvar getIterFn = require('./core.get-iterator-method');\nvar BREAK = {};\nvar RETURN = {};\nvar exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {\n var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);\n var f = ctx(fn, that, entries ? 2 : 1);\n var index = 0;\n var length, step, iterator, result;\n if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');\n // fast case for arrays with default iterator\n if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {\n result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);\n if (result === BREAK || result === RETURN) return result;\n } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {\n result = call(iterator, f, step.value, entries);\n if (result === BREAK || result === RETURN) return result;\n }\n};\nexports.BREAK = BREAK;\nexports.RETURN = RETURN;\n","// 7.3.20 SpeciesConstructor(O, defaultConstructor)\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar SPECIES = require('./_wks')('species');\nmodule.exports = function (O, D) {\n var C = anObject(O).constructor;\n var S;\n return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);\n};\n","// fast apply, http://jsperf.lnkit.com/fast-apply/5\nmodule.exports = function (fn, args, that) {\n var un = that === undefined;\n switch (args.length) {\n case 0: return un ? fn()\n : fn.call(that);\n case 1: return un ? fn(args[0])\n : fn.call(that, args[0]);\n case 2: return un ? fn(args[0], args[1])\n : fn.call(that, args[0], args[1]);\n case 3: return un ? fn(args[0], args[1], args[2])\n : fn.call(that, args[0], args[1], args[2]);\n case 4: return un ? fn(args[0], args[1], args[2], args[3])\n : fn.call(that, args[0], args[1], args[2], args[3]);\n } return fn.apply(that, args);\n};\n","var ctx = require('./_ctx');\nvar invoke = require('./_invoke');\nvar html = require('./_html');\nvar cel = require('./_dom-create');\nvar global = require('./_global');\nvar process = global.process;\nvar setTask = global.setImmediate;\nvar clearTask = global.clearImmediate;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\nvar run = function () {\n var id = +this;\n // eslint-disable-next-line no-prototype-builtins\n if (queue.hasOwnProperty(id)) {\n var fn = queue[id];\n delete queue[id];\n fn();\n }\n};\nvar listener = function (event) {\n run.call(event.data);\n};\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!setTask || !clearTask) {\n setTask = function setImmediate(fn) {\n var args = [];\n var i = 1;\n while (arguments.length > i) args.push(arguments[i++]);\n queue[++counter] = function () {\n // eslint-disable-next-line no-new-func\n invoke(typeof fn == 'function' ? fn : Function(fn), args);\n };\n defer(counter);\n return counter;\n };\n clearTask = function clearImmediate(id) {\n delete queue[id];\n };\n // Node.js 0.8-\n if (require('./_cof')(process) == 'process') {\n defer = function (id) {\n process.nextTick(ctx(run, id, 1));\n };\n // Sphere (JS game engine) Dispatch API\n } else if (Dispatch && Dispatch.now) {\n defer = function (id) {\n Dispatch.now(ctx(run, id, 1));\n };\n // Browsers with MessageChannel, includes WebWorkers\n } else if (MessageChannel) {\n channel = new MessageChannel();\n port = channel.port2;\n channel.port1.onmessage = listener;\n defer = ctx(port.postMessage, port, 1);\n // Browsers with postMessage, skip WebWorkers\n // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {\n defer = function (id) {\n global.postMessage(id + '', '*');\n };\n global.addEventListener('message', listener, false);\n // IE8-\n } else if (ONREADYSTATECHANGE in cel('script')) {\n defer = function (id) {\n html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {\n html.removeChild(this);\n run.call(id);\n };\n };\n // Rest old browsers\n } else {\n defer = function (id) {\n setTimeout(ctx(run, id, 1), 0);\n };\n }\n}\nmodule.exports = {\n set: setTask,\n clear: clearTask\n};\n","var global = require('./_global');\nvar macrotask = require('./_task').set;\nvar Observer = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar isNode = require('./_cof')(process) == 'process';\n\nmodule.exports = function () {\n var head, last, notify;\n\n var flush = function () {\n var parent, fn;\n if (isNode && (parent = process.domain)) parent.exit();\n while (head) {\n fn = head.fn;\n head = head.next;\n try {\n fn();\n } catch (e) {\n if (head) notify();\n else last = undefined;\n throw e;\n }\n } last = undefined;\n if (parent) parent.enter();\n };\n\n // Node.js\n if (isNode) {\n notify = function () {\n process.nextTick(flush);\n };\n // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339\n } else if (Observer && !(global.navigator && global.navigator.standalone)) {\n var toggle = true;\n var node = document.createTextNode('');\n new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new\n notify = function () {\n node.data = toggle = !toggle;\n };\n // environments with maybe non-completely correct, but existent Promise\n } else if (Promise && Promise.resolve) {\n // Promise.resolve without an argument throws an error in LG WebOS 2\n var promise = Promise.resolve(undefined);\n notify = function () {\n promise.then(flush);\n };\n // for other environments - macrotask based on:\n // - setImmediate\n // - MessageChannel\n // - window.postMessag\n // - onreadystatechange\n // - setTimeout\n } else {\n notify = function () {\n // strange IE + webpack dev server bug - use .call(global)\n macrotask.call(global, flush);\n };\n }\n\n return function (fn) {\n var task = { fn: fn, next: undefined };\n if (last) last.next = task;\n if (!head) {\n head = task;\n notify();\n } last = task;\n };\n};\n","'use strict';\n// 25.4.1.5 NewPromiseCapability(C)\nvar aFunction = require('./_a-function');\n\nfunction PromiseCapability(C) {\n var resolve, reject;\n this.promise = new C(function ($$resolve, $$reject) {\n if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n resolve = $$resolve;\n reject = $$reject;\n });\n this.resolve = aFunction(resolve);\n this.reject = aFunction(reject);\n}\n\nmodule.exports.f = function (C) {\n return new PromiseCapability(C);\n};\n","module.exports = function (exec) {\n try {\n return { e: false, v: exec() };\n } catch (e) {\n return { e: true, v: e };\n }\n};\n","var global = require('./_global');\nvar navigator = global.navigator;\n\nmodule.exports = navigator && navigator.userAgent || '';\n","var anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar newPromiseCapability = require('./_new-promise-capability');\n\nmodule.exports = function (C, x) {\n anObject(C);\n if (isObject(x) && x.constructor === C) return x;\n var promiseCapability = newPromiseCapability.f(C);\n var resolve = promiseCapability.resolve;\n resolve(x);\n return promiseCapability.promise;\n};\n","var redefine = require('./_redefine');\nmodule.exports = function (target, src, safe) {\n for (var key in src) redefine(target, key, src[key], safe);\n return target;\n};\n","'use strict';\nvar global = require('./_global');\nvar dP = require('./_object-dp');\nvar DESCRIPTORS = require('./_descriptors');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (KEY) {\n var C = global[KEY];\n if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {\n configurable: true,\n get: function () { return this; }\n });\n};\n","var ITERATOR = require('./_wks')('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n var riter = [7][ITERATOR]();\n riter['return'] = function () { SAFE_CLOSING = true; };\n // eslint-disable-next-line no-throw-literal\n Array.from(riter, function () { throw 2; });\n} catch (e) { /* empty */ }\n\nmodule.exports = function (exec, skipClosing) {\n if (!skipClosing && !SAFE_CLOSING) return false;\n var safe = false;\n try {\n var arr = [7];\n var iter = arr[ITERATOR]();\n iter.next = function () { return { done: safe = true }; };\n arr[ITERATOR] = function () { return iter; };\n exec(arr);\n } catch (e) { /* empty */ }\n return safe;\n};\n","'use strict';\nvar LIBRARY = require('./_library');\nvar global = require('./_global');\nvar ctx = require('./_ctx');\nvar classof = require('./_classof');\nvar $export = require('./_export');\nvar isObject = require('./_is-object');\nvar aFunction = require('./_a-function');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar speciesConstructor = require('./_species-constructor');\nvar task = require('./_task').set;\nvar microtask = require('./_microtask')();\nvar newPromiseCapabilityModule = require('./_new-promise-capability');\nvar perform = require('./_perform');\nvar userAgent = require('./_user-agent');\nvar promiseResolve = require('./_promise-resolve');\nvar PROMISE = 'Promise';\nvar TypeError = global.TypeError;\nvar process = global.process;\nvar versions = process && process.versions;\nvar v8 = versions && versions.v8 || '';\nvar $Promise = global[PROMISE];\nvar isNode = classof(process) == 'process';\nvar empty = function () { /* empty */ };\nvar Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;\nvar newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;\n\nvar USE_NATIVE = !!function () {\n try {\n // correct subclassing with @@species support\n var promise = $Promise.resolve(1);\n var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {\n exec(empty, empty);\n };\n // unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n return (isNode || typeof PromiseRejectionEvent == 'function')\n && promise.then(empty) instanceof FakePromise\n // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables\n // https://bugs.chromium.org/p/chromium/issues/detail?id=830565\n // we can't detect it synchronously, so just check versions\n && v8.indexOf('6.6') !== 0\n && userAgent.indexOf('Chrome/66') === -1;\n } catch (e) { /* empty */ }\n}();\n\n// helpers\nvar isThenable = function (it) {\n var then;\n return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\nvar notify = function (promise, isReject) {\n if (promise._n) return;\n promise._n = true;\n var chain = promise._c;\n microtask(function () {\n var value = promise._v;\n var ok = promise._s == 1;\n var i = 0;\n var run = function (reaction) {\n var handler = ok ? reaction.ok : reaction.fail;\n var resolve = reaction.resolve;\n var reject = reaction.reject;\n var domain = reaction.domain;\n var result, then, exited;\n try {\n if (handler) {\n if (!ok) {\n if (promise._h == 2) onHandleUnhandled(promise);\n promise._h = 1;\n }\n if (handler === true) result = value;\n else {\n if (domain) domain.enter();\n result = handler(value); // may throw\n if (domain) {\n domain.exit();\n exited = true;\n }\n }\n if (result === reaction.promise) {\n reject(TypeError('Promise-chain cycle'));\n } else if (then = isThenable(result)) {\n then.call(result, resolve, reject);\n } else resolve(result);\n } else reject(value);\n } catch (e) {\n if (domain && !exited) domain.exit();\n reject(e);\n }\n };\n while (chain.length > i) run(chain[i++]); // variable length - can't use forEach\n promise._c = [];\n promise._n = false;\n if (isReject && !promise._h) onUnhandled(promise);\n });\n};\nvar onUnhandled = function (promise) {\n task.call(global, function () {\n var value = promise._v;\n var unhandled = isUnhandled(promise);\n var result, handler, console;\n if (unhandled) {\n result = perform(function () {\n if (isNode) {\n process.emit('unhandledRejection', value, promise);\n } else if (handler = global.onunhandledrejection) {\n handler({ promise: promise, reason: value });\n } else if ((console = global.console) && console.error) {\n console.error('Unhandled promise rejection', value);\n }\n });\n // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n promise._h = isNode || isUnhandled(promise) ? 2 : 1;\n } promise._a = undefined;\n if (unhandled && result.e) throw result.v;\n });\n};\nvar isUnhandled = function (promise) {\n return promise._h !== 1 && (promise._a || promise._c).length === 0;\n};\nvar onHandleUnhandled = function (promise) {\n task.call(global, function () {\n var handler;\n if (isNode) {\n process.emit('rejectionHandled', promise);\n } else if (handler = global.onrejectionhandled) {\n handler({ promise: promise, reason: promise._v });\n }\n });\n};\nvar $reject = function (value) {\n var promise = this;\n if (promise._d) return;\n promise._d = true;\n promise = promise._w || promise; // unwrap\n promise._v = value;\n promise._s = 2;\n if (!promise._a) promise._a = promise._c.slice();\n notify(promise, true);\n};\nvar $resolve = function (value) {\n var promise = this;\n var then;\n if (promise._d) return;\n promise._d = true;\n promise = promise._w || promise; // unwrap\n try {\n if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n if (then = isThenable(value)) {\n microtask(function () {\n var wrapper = { _w: promise, _d: false }; // wrap\n try {\n then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));\n } catch (e) {\n $reject.call(wrapper, e);\n }\n });\n } else {\n promise._v = value;\n promise._s = 1;\n notify(promise, false);\n }\n } catch (e) {\n $reject.call({ _w: promise, _d: false }, e); // wrap\n }\n};\n\n// constructor polyfill\nif (!USE_NATIVE) {\n // 25.4.3.1 Promise(executor)\n $Promise = function Promise(executor) {\n anInstance(this, $Promise, PROMISE, '_h');\n aFunction(executor);\n Internal.call(this);\n try {\n executor(ctx($resolve, this, 1), ctx($reject, this, 1));\n } catch (err) {\n $reject.call(this, err);\n }\n };\n // eslint-disable-next-line no-unused-vars\n Internal = function Promise(executor) {\n this._c = []; // <- awaiting reactions\n this._a = undefined; // <- checked in isUnhandled reactions\n this._s = 0; // <- state\n this._d = false; // <- done\n this._v = undefined; // <- value\n this._h = 0; // <- rejection state, 0 - default, 1 - handled, 2 - unhandled\n this._n = false; // <- notify\n };\n Internal.prototype = require('./_redefine-all')($Promise.prototype, {\n // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)\n then: function then(onFulfilled, onRejected) {\n var reaction = newPromiseCapability(speciesConstructor(this, $Promise));\n reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n reaction.fail = typeof onRejected == 'function' && onRejected;\n reaction.domain = isNode ? process.domain : undefined;\n this._c.push(reaction);\n if (this._a) this._a.push(reaction);\n if (this._s) notify(this, false);\n return reaction.promise;\n },\n // 25.4.5.1 Promise.prototype.catch(onRejected)\n 'catch': function (onRejected) {\n return this.then(undefined, onRejected);\n }\n });\n OwnPromiseCapability = function () {\n var promise = new Internal();\n this.promise = promise;\n this.resolve = ctx($resolve, promise, 1);\n this.reject = ctx($reject, promise, 1);\n };\n newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n return C === $Promise || C === Wrapper\n ? new OwnPromiseCapability(C)\n : newGenericPromiseCapability(C);\n };\n}\n\n$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });\nrequire('./_set-to-string-tag')($Promise, PROMISE);\nrequire('./_set-species')(PROMISE);\nWrapper = require('./_core')[PROMISE];\n\n// statics\n$export($export.S + $export.F * !USE_NATIVE, PROMISE, {\n // 25.4.4.5 Promise.reject(r)\n reject: function reject(r) {\n var capability = newPromiseCapability(this);\n var $$reject = capability.reject;\n $$reject(r);\n return capability.promise;\n }\n});\n$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {\n // 25.4.4.6 Promise.resolve(x)\n resolve: function resolve(x) {\n return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);\n }\n});\n$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {\n $Promise.all(iter)['catch'](empty);\n})), PROMISE, {\n // 25.4.4.1 Promise.all(iterable)\n all: function all(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var values = [];\n var index = 0;\n var remaining = 1;\n forOf(iterable, false, function (promise) {\n var $index = index++;\n var alreadyCalled = false;\n values.push(undefined);\n remaining++;\n C.resolve(promise).then(function (value) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[$index] = value;\n --remaining || resolve(values);\n }, reject);\n });\n --remaining || resolve(values);\n });\n if (result.e) reject(result.v);\n return capability.promise;\n },\n // 25.4.4.4 Promise.race(iterable)\n race: function race(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var reject = capability.reject;\n var result = perform(function () {\n forOf(iterable, false, function (promise) {\n C.resolve(promise).then(capability.resolve, reject);\n });\n });\n if (result.e) reject(result.v);\n return capability.promise;\n }\n});\n","var dP = require('./_object-dp').f;\nvar FProto = Function.prototype;\nvar nameRE = /^\\s*function ([^ (]*)/;\nvar NAME = 'name';\n\n// 19.2.4.2 name\nNAME in FProto || require('./_descriptors') && dP(FProto, NAME, {\n configurable: true,\n get: function () {\n try {\n return ('' + this).match(nameRE)[1];\n } catch (e) {\n return '';\n }\n }\n});\n","// most Object methods by ES6 should accept primitives\nvar $export = require('./_export');\nvar core = require('./_core');\nvar fails = require('./_fails');\nmodule.exports = function (KEY, exec) {\n var fn = (core.Object || {})[KEY] || Object[KEY];\n var exp = {};\n exp[KEY] = exec(fn);\n $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);\n};\n","// 19.1.2.14 Object.keys(O)\nvar toObject = require('./_to-object');\nvar $keys = require('./_object-keys');\n\nrequire('./_object-sap')('keys', function () {\n return function keys(it) {\n return $keys(toObject(it));\n };\n});\n","import {version} from '../../package.json';\n\nexport default 'v' + version;\n","// 7.2.8 IsRegExp(argument)\nvar isObject = require('./_is-object');\nvar cof = require('./_cof');\nvar MATCH = require('./_wks')('match');\nmodule.exports = function (it) {\n var isRegExp;\n return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');\n};\n","'use strict';\n\nvar isRegExp = require('./_is-regexp');\nvar anObject = require('./_an-object');\nvar speciesConstructor = require('./_species-constructor');\nvar advanceStringIndex = require('./_advance-string-index');\nvar toLength = require('./_to-length');\nvar callRegExpExec = require('./_regexp-exec-abstract');\nvar regexpExec = require('./_regexp-exec');\nvar fails = require('./_fails');\nvar $min = Math.min;\nvar $push = [].push;\nvar $SPLIT = 'split';\nvar LENGTH = 'length';\nvar LAST_INDEX = 'lastIndex';\nvar MAX_UINT32 = 0xffffffff;\n\n// babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError\nvar SUPPORTS_Y = !fails(function () { RegExp(MAX_UINT32, 'y'); });\n\n// @@split logic\nrequire('./_fix-re-wks')('split', 2, function (defined, SPLIT, $split, maybeCallNative) {\n var internalSplit;\n if (\n 'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||\n 'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||\n 'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||\n '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||\n '.'[$SPLIT](/()()/)[LENGTH] > 1 ||\n ''[$SPLIT](/.?/)[LENGTH]\n ) {\n // based on es5-shim implementation, need to rework it\n internalSplit = function (separator, limit) {\n var string = String(this);\n if (separator === undefined && limit === 0) return [];\n // If `separator` is not a regex, use native split\n if (!isRegExp(separator)) return $split.call(string, separator, limit);\n var output = [];\n var flags = (separator.ignoreCase ? 'i' : '') +\n (separator.multiline ? 'm' : '') +\n (separator.unicode ? 'u' : '') +\n (separator.sticky ? 'y' : '');\n var lastLastIndex = 0;\n var splitLimit = limit === undefined ? MAX_UINT32 : limit >>> 0;\n // Make `global` and avoid `lastIndex` issues by working with a copy\n var separatorCopy = new RegExp(separator.source, flags + 'g');\n var match, lastIndex, lastLength;\n while (match = regexpExec.call(separatorCopy, string)) {\n lastIndex = separatorCopy[LAST_INDEX];\n if (lastIndex > lastLastIndex) {\n output.push(string.slice(lastLastIndex, match.index));\n if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));\n lastLength = match[0][LENGTH];\n lastLastIndex = lastIndex;\n if (output[LENGTH] >= splitLimit) break;\n }\n if (separatorCopy[LAST_INDEX] === match.index) separatorCopy[LAST_INDEX]++; // Avoid an infinite loop\n }\n if (lastLastIndex === string[LENGTH]) {\n if (lastLength || !separatorCopy.test('')) output.push('');\n } else output.push(string.slice(lastLastIndex));\n return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;\n };\n // Chakra, V8\n } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {\n internalSplit = function (separator, limit) {\n return separator === undefined && limit === 0 ? [] : $split.call(this, separator, limit);\n };\n } else {\n internalSplit = $split;\n }\n\n return [\n // `String.prototype.split` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.split\n function split(separator, limit) {\n var O = defined(this);\n var splitter = separator == undefined ? undefined : separator[SPLIT];\n return splitter !== undefined\n ? splitter.call(separator, O, limit)\n : internalSplit.call(String(O), separator, limit);\n },\n // `RegExp.prototype[@@split]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split\n //\n // NOTE: This cannot be properly polyfilled in engines that don't support\n // the 'y' flag.\n function (regexp, limit) {\n var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== $split);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n var C = speciesConstructor(rx, RegExp);\n\n var unicodeMatching = rx.unicode;\n var flags = (rx.ignoreCase ? 'i' : '') +\n (rx.multiline ? 'm' : '') +\n (rx.unicode ? 'u' : '') +\n (SUPPORTS_Y ? 'y' : 'g');\n\n // ^(? + rx + ) is needed, in combination with some S slicing, to\n // simulate the 'y' flag.\n var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);\n var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;\n if (lim === 0) return [];\n if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];\n var p = 0;\n var q = 0;\n var A = [];\n while (q < S.length) {\n splitter.lastIndex = SUPPORTS_Y ? q : 0;\n var z = callRegExpExec(splitter, SUPPORTS_Y ? S : S.slice(q));\n var e;\n if (\n z === null ||\n (e = $min(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p\n ) {\n q = advanceStringIndex(S, q, unicodeMatching);\n } else {\n A.push(S.slice(p, q));\n if (A.length === lim) return A;\n for (var i = 1; i <= z.length - 1; i++) {\n A.push(z[i]);\n if (A.length === lim) return A;\n }\n q = p = e;\n }\n }\n A.push(S.slice(p));\n return A;\n }\n ];\n});\n","/*jshint worker: true*/\n\n// WorkerBroker routes messages between web workers and the main thread, allowing for simpler\n// async code via promises. Example usage:\n//\n// In web worker, register self as a callable \"target\", and define a method:\n//\n// WorkerBroker.addTarget('self', self);\n//\n// self.square = function (x) {\n// return x * x;\n// };\n//\n// In main thread, invoke that method and receive the result (if any) as a promise.\n//\n// worker = new Worker(...);\n// WorkerBroker.addWorker(worker);\n//\n// WorkerBroker.postMessage(worker, 'self.square', 5).then(function(y) {\n// console.log(y);\n// });\n//\n// -> prints 25\n//\n// Async code:\n//\n// For synchronous code that must pass a return value to the main thread, the function can simply\n// return an immediate value (see example above). For cases where the worker method needs to run\n// asynchronous code, the function can return a promise, and the resolved or rejected value will\n// be sent back to the main thread when the promise is fulfilled.\n//\n// Error handling:\n//\n// If the worker method either throws an error, or returns a promise that is rejected, it will be\n// sent back to the main thread as a promise rejection. These two examples are equivalent:\n//\n// In worker, throwing an error:\n//\n// self.broken = function () {\n// throw new Error('error in worker!');\n// };\n//\n// In worker, returning a rejected promise:\n//\n// self.broken = function () {\n// return Promise.reject(new Error('error in worker!'));\n// };\n//\n// In main thread, both errors are received as a promise rejection:\n//\n// WorkerBroker.postMessage(worker, 'self.broken').then(\n// // Promise resolved\n// function() {\n// console.log('success!');\n// },\n// // Promise rejected\n// function(error) {\n// console.log('error!', error);\n// });\n//\n// -> prints 'error! error in worker'\n//\n// Calling from worker to main thread:\n//\n// The same style of calls can be made *from* a web worker, to the main thread. The API is the same\n// with the exception that the first argument, 'worker', is not needed for WorkerBroker.postMessage(),\n// since the main thread is the implicit target.\n//\n// In main thread, define a method and register it:\n//\n// var geometry = {\n// length: function(x, y) {\n// return Math.sqrt(x * x + y * y);\n// }\n// };\n//\n// WorkerBroker.addTarget('geometry', geometry);\n//\n// In worker thread):\n//\n// WorkerBroker.postMessage('geometry.length', 3, 4).then(function(d) {\n// console.log(d);\n// });\n//\n// -> prints 5\n//\n\nimport Thread from './thread';\nimport log from './log';\n\nvar WorkerBroker;\nexport default WorkerBroker = {};\n\n// Global list of all worker messages\n// Uniquely tracks every call made between main thread and a worker\nvar message_id = 0;\nvar messages = {};\n\n// Register an object to receive calls from other thread\nWorkerBroker.targets = {};\nWorkerBroker.addTarget = function (name, target) {\n WorkerBroker.targets[name] = target;\n};\n\nWorkerBroker.removeTarget = function (name) {\n if (name) {\n delete WorkerBroker.targets[name];\n }\n};\n\n// Given a dot-notation-style method name, e.g. 'Object.object.method',\n// find the object to call the method on from the list of registered targets\nfunction findTarget (method) {\n var chain = [];\n if (typeof method === 'string') {\n chain = method.split('.');\n method = chain.pop();\n }\n\n var target = WorkerBroker.targets;\n\n for (let m=0; m < chain.length; m++) {\n if (target[chain[m]]) {\n target = target[chain[m]];\n }\n else {\n return [];\n }\n }\n\n return [method, target];\n}\n\n// Main thread:\n// - Send messages to workers, and optionally receive an async response as a promise\n// - Receive messages from workers, and optionally send an async response back as a promise\nfunction setupMainThread () {\n\n // Send a message to a worker, and optionally get an async response\n // Arguments:\n // - worker: one or more web worker instances to send the message to (single value or array)\n // - method: the method with this name, specified with dot-notation, will be invoked in the worker\n // - message: spread of arguments to call the method with\n // Returns:\n // - a promise that will be fulfilled if the worker method returns a value (could be immediately, or async)\n //\n WorkerBroker.postMessage = function (worker, method, ...message) {\n // If more than one worker specified, post to multiple\n if (Array.isArray(worker)) {\n return Promise.all(\n worker.map(w => WorkerBroker.postMessage(w, method, ...message))\n );\n }\n\n // Parse options\n let options = {};\n if (typeof method === 'object') {\n options = method;\n method = method.method;\n }\n\n // Track state of this message\n var promise = new Promise((resolve, reject) => {\n messages[message_id] = { method, message, resolve, reject };\n });\n\n\n let payload, transferables = [];\n\n if (message && message.length === 1 && message[0] instanceof WorkerBroker.withTransferables) {\n transferables = message[0].transferables;\n message = message[0].value;\n }\n\n payload = {\n type: 'main_send', // mark message as method invocation from main thread\n message_id, // unique id for this message, for life of program\n method, // will dispatch to a function of this name within the worker\n message // message payload\n };\n\n if (options.stringify) {\n payload = JSON.stringify(payload);\n }\n\n worker.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method}' transferred ${transferables.length} objects to worker thread`);\n }\n\n message_id++;\n return promise;\n };\n\n // Add a worker to communicate with - each worker must be registered from the main thread\n WorkerBroker.addWorker = function (worker) {\n if (!(worker instanceof Worker)) {\n throw Error('Worker broker could not add non-Worker object', worker);\n }\n\n worker.addEventListener('message', function WorkerBrokerMainThreadHandler(event) {\n let data = ((typeof event.data === 'string') ? JSON.parse(event.data) : event.data);\n let id = data.message_id;\n\n // Listen for messages coming back from the worker, and fulfill that message's promise\n if (data.type === 'worker_reply') {\n // Pass the result to the promise\n if (messages[id]) {\n if (data.error) {\n messages[id].reject(data.error);\n }\n else {\n messages[id].resolve(data.message);\n }\n delete messages[id];\n }\n }\n // Listen for messages initiating a call from the worker, dispatch them,\n // and send any return value back to the worker\n // Unique id for this message & return call to main thread\n else if (data.type === 'worker_send' && id != null) {\n // Call the requested method and save the return value\n let result, error, target, method_name, method;\n try {\n [method_name, target] = findTarget(data.method);\n if (!target) {\n throw Error(`Worker broker could not dispatch message type ${data.method} on target ${data.target} because no object with that name is registered on main thread`);\n }\n\n method = (typeof target[method_name] === 'function') && target[method_name];\n if (!method) {\n throw Error(`Worker broker could not dispatch message type ${data.method} on target ${data.target} because object has no method with that name`);\n }\n\n result = method.apply(target, data.message);\n }\n catch(e) {\n // Thrown errors will be passed back (in string form) to worker\n error = e;\n\n }\n // Send return value to worker\n let payload, transferables = [];\n\n // Async result\n if (result instanceof Promise) {\n result.then((value) => {\n if (value instanceof WorkerBroker.withTransferables) {\n transferables = value.transferables;\n value = value.value[0];\n }\n\n payload = {\n type: 'main_reply',\n message_id: id,\n message: value\n };\n worker.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method_name}' transferred ${transferables.length} objects to worker thread`);\n }\n\n }, (error) => {\n worker.postMessage({\n type: 'main_reply',\n message_id: id,\n error: (error instanceof Error ? `${error.message}: ${error.stack}` : error)\n });\n });\n }\n // Immediate result\n else {\n if (result instanceof WorkerBroker.withTransferables) {\n transferables = result.transferables;\n result = result.value[0];\n }\n\n payload = {\n type: 'main_reply',\n message_id: id,\n message: result,\n error: (error instanceof Error ? `${error.message}: ${error.stack}` : error)\n };\n worker.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method_name}' transferred ${transferables.length} objects to worker thread`);\n }\n }\n }\n });\n\n };\n\n // Expose for debugging\n WorkerBroker.getMessages = function () {\n return messages;\n };\n\n WorkerBroker.getMessageId = function () {\n return message_id;\n };\n\n}\n\n// Worker threads:\n// - Receive messages from main thread, and optionally send an async response back as a promise\n// - Send messages to main thread, and optionally receive an async response as a promise\nfunction setupWorkerThread () {\n\n // Send a message to the main thread, and optionally get an async response as a promise\n // Arguments:\n // - method: the method with this name, specified with dot-notation, will be invoked on the main thread\n // - message: array of arguments to call the method with\n // Returns:\n // - a promise that will be fulfilled if the main thread method returns a value (could be immediately, or async)\n //\n WorkerBroker.postMessage = function (method, ...message) {\n // Parse options\n let options = {};\n if (typeof method === 'object') {\n options = method;\n method = method.method;\n }\n\n // Track state of this message\n var promise = new Promise((resolve, reject) => {\n messages[message_id] = { method, message, resolve, reject };\n });\n\n let payload, transferables = [];\n\n if (message && message.length === 1 && message[0] instanceof WorkerBroker.withTransferables) {\n transferables = message[0].transferables;\n message = message[0].value;\n }\n\n payload = {\n type: 'worker_send', // mark message as method invocation from worker\n message_id, // unique id for this message, for life of program\n method, // will dispatch to a method of this name on the main thread\n message // message payload\n };\n\n if (options.stringify) {\n payload = JSON.stringify(payload);\n }\n\n self.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method}' transferred ${transferables.length} objects to main thread`);\n }\n\n message_id++;\n return promise;\n };\n\n self.addEventListener('message', function WorkerBrokerWorkerThreadHandler(event) {\n let data = ((typeof event.data === 'string') ? JSON.parse(event.data) : event.data);\n let id = data.message_id;\n\n // Listen for messages coming back from the main thread, and fulfill that message's promise\n if (data.type === 'main_reply') {\n // Pass the result to the promise\n if (messages[id]) {\n if (data.error) {\n messages[id].reject(data.error);\n }\n else {\n messages[id].resolve(data.message);\n }\n delete messages[id];\n }\n }\n // Receive messages from main thread, dispatch them, and send back a reply\n // Unique id for this message & return call to main thread\n else if (data.type === 'main_send' && id != null) {\n // Call the requested worker method and save the return value\n let result, error, target, method_name, method;\n try {\n [method_name, target] = findTarget(data.method);\n if (!target) {\n throw Error(`Worker broker could not dispatch message type ${data.method} on target ${data.target} because no object with that name is registered on main thread`);\n }\n\n method = (typeof target[method_name] === 'function') && target[method_name];\n\n if (!method) {\n throw Error(`Worker broker could not dispatch message type ${data.method} because worker has no method with that name`);\n }\n\n result = method.apply(target, data.message);\n }\n catch(e) {\n // Thrown errors will be passed back (in string form) to main thread\n error = e;\n }\n\n // Send return value to main thread\n let payload, transferables = [];\n\n // Async result\n if (result instanceof Promise) {\n result.then((value) => {\n if (value instanceof WorkerBroker.withTransferables) {\n transferables = value.transferables;\n value = value.value[0];\n }\n\n payload = {\n type: 'worker_reply',\n message_id: id,\n message: value\n };\n self.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method_name}' transferred ${transferables.length} objects to main thread`);\n }\n }, (error) => {\n self.postMessage({\n type: 'worker_reply',\n message_id: id,\n error: (error instanceof Error ? `${error.message}: ${error.stack}` : error)\n });\n });\n }\n // Immediate result\n else {\n if (result instanceof WorkerBroker.withTransferables) {\n transferables = result.transferables;\n result = result.value[0];\n }\n\n payload = {\n type: 'worker_reply',\n message_id: id,\n message: result,\n error: (error instanceof Error ? `${error.message}: ${error.stack}` : error)\n };\n self.postMessage(payload, transferables.map(t => t.object));\n freeTransferables(transferables);\n if (transferables.length > 0) {\n log('trace', `'${method_name}' transferred ${transferables.length} objects to main thread`);\n }\n }\n }\n });\n\n}\n\n// Special value wrapper, to indicate that we want to find and include transferable objects in the message\nWorkerBroker.withTransferables = function (...value) {\n if (!(this instanceof WorkerBroker.withTransferables)) {\n return new WorkerBroker.withTransferables(...value);\n }\n\n this.value = value;\n this.transferables = findTransferables(this.value);\n};\n\n// Build a list of transferable objects from a source object\n// Returns a list of info about each transferable:\n// - object: the actual transferable object\n// - parent: the parent object that the transferable is a property of (if any)\n// - property: the property name of the transferable on the parent object (if any)\n// TODO: add option in case you DON'T want to transfer objects\nfunction findTransferables(source, parent = null, property = null, list = []) {\n if (!source) {\n return list;\n }\n\n if (Array.isArray(source)) {\n // Check each array element\n source.forEach((x, i) => findTransferables(x, source, i, list));\n }\n else if (typeof source === 'object') {\n // Is the object a transferable array buffer?\n if (source instanceof ArrayBuffer) {\n list.push({ object: source, parent, property });\n }\n // Or looks like a typed array (has an array buffer property)?\n else if (source.buffer instanceof ArrayBuffer) {\n list.push({ object: source.buffer, parent, property });\n }\n // Otherwise check each property\n else {\n for (let prop in source) {\n findTransferables(source[prop], source, prop, list);\n }\n }\n }\n return list;\n}\n\n// Remove neutered transferables from parent objects, as they should no longer be accessed after transfer\nfunction freeTransferables(transferables) {\n if (!Array.isArray(transferables)) {\n return;\n }\n transferables.filter(t => t.parent && t.property).forEach(t => delete t.parent[t.property]);\n}\n\n// Setup this thread as appropriate\nif (Thread.is_main) {\n setupMainThread();\n}\n\nif (Thread.is_worker) {\n setupWorkerThread();\n}\n","import version from './version';\nimport Thread from './thread';\nimport WorkerBroker from './worker_broker';\n\nconst LEVELS = {\n silent: -1,\n error: 0,\n warn: 1,\n info: 2,\n debug: 3,\n trace: 4\n};\n\nconst methods = {};\nlet logged_once = {};\n\nfunction methodForLevel (level) {\n if (Thread.is_main) {\n methods[level] = methods[level] || (console[level] ? console[level] : console.log).bind(console); // eslint-disable-line no-console\n return methods[level];\n }\n}\n\n// Logs message, proxying any log requests from worker threads back to the main thread.\n// Returns (asynchronously, due to proxying) a boolean indicating if the message was logged.\n// Option `once: true` can be used to only log each unique log message once (e.g. for warnings\n// that would otherwise be repetitive or possibly logged thousands of times, such as per feature).\nexport default function log (opts, ...msg) {\n let level = (typeof opts === 'object') ? opts.level : opts;\n if (LEVELS[level] <= LEVELS[log.level]) {\n if (Thread.is_worker) {\n // Proxy to main thread\n return WorkerBroker.postMessage({ method: '_logProxy', stringify: true }, opts, ...msg);\n }\n else {\n // Only log message once?\n if (typeof opts === 'object' && opts.once === true) {\n if (logged_once[JSON.stringify(msg)]) {\n return Promise.resolve(false);\n }\n logged_once[JSON.stringify(msg)] = true;\n }\n\n // Write to console (on main thread)\n let logger = methodForLevel(level);\n if (msg.length > 1) {\n logger(`Tangram ${version} [${level}]: ${msg[0]}`, ...msg.slice(1));\n }\n else {\n logger(`Tangram ${version} [${level}]: ${msg[0]}`);\n }\n }\n return Promise.resolve(true);\n }\n return Promise.resolve(false);\n}\n\nlog.level = 'info';\nlog.workers = null;\n\nlog.setLevel = function (level) {\n log.level = level;\n\n if (Thread.is_main && Array.isArray(log.workers)) {\n WorkerBroker.postMessage(log.workers, '_logSetLevelProxy', level);\n }\n};\n\nif (Thread.is_main) {\n log.setWorkers = function (workers) {\n log.workers = workers;\n };\n\n log.reset = function () {\n logged_once = {};\n };\n}\n\nWorkerBroker.addTarget('_logProxy', log); // proxy log messages from worker to main thread\nWorkerBroker.addTarget('_logSetLevelProxy', log.setLevel); // proxy log level setting from main to worker thread\n","// 21.2.5.3 get RegExp.prototype.flags()\nif (require('./_descriptors') && /./g.flags != 'g') require('./_object-dp').f(RegExp.prototype, 'flags', {\n configurable: true,\n get: require('./_flags')\n});\n","'use strict';\nrequire('./es6.regexp.flags');\nvar anObject = require('./_an-object');\nvar $flags = require('./_flags');\nvar DESCRIPTORS = require('./_descriptors');\nvar TO_STRING = 'toString';\nvar $toString = /./[TO_STRING];\n\nvar define = function (fn) {\n require('./_redefine')(RegExp.prototype, TO_STRING, fn, true);\n};\n\n// 21.2.5.14 RegExp.prototype.toString()\nif (require('./_fails')(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {\n define(function toString() {\n var R = anObject(this);\n return '/'.concat(R.source, '/',\n 'flags' in R ? R.flags : !DESCRIPTORS && R instanceof RegExp ? $flags.call(R) : undefined);\n });\n// FF44- RegExp#toString has a wrong name\n} else if ($toString.name != TO_STRING) {\n define(function toString() {\n return $toString.call(this);\n });\n}\n","// Miscellaneous utilities\n/*jshint worker: true*/\n\nimport log from './log';\nimport Thread from './thread';\nimport WorkerBroker from './worker_broker';\n\nexport default Utils;\n\nconst Utils = {};\n\nWorkerBroker.addTarget('Utils', Utils);\n\n// Basic Safari detection\n// http://stackoverflow.com/questions/7944460/detect-safari-browser\nUtils.isSafari = function () {\n return /^((?!chrome|android).)*safari/i.test(navigator.userAgent);\n};\n\n// Basic IE11 or Edge detection\nUtils.isMicrosoft = function () {\n return /(Trident\\/7.0|Edge[ /](\\d+[.\\d]+))/i.test(navigator.userAgent);\n};\n\nUtils._requests = {}; // XHR requests on current thread\nUtils._proxy_requests = {}; // XHR requests proxied to main thread\n\n// `request_key` is a user-provided key that can be later used to cancel the request\nUtils.io = function (url, timeout = 60000, responseType = 'text', method = 'GET', headers = {}, request_key = null, proxy = false) {\n if (Thread.is_worker && Utils.isMicrosoft()) {\n // Some versions of IE11 and Edge will hang web workers when performing XHR requests\n // These requests can be proxied through the main thread\n // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/9545866/\n log('debug', 'Proxying request for URL to worker', url);\n\n if (request_key) {\n Utils._proxy_requests[request_key] = true; // mark as proxied\n }\n return WorkerBroker.postMessage('Utils.io', url, timeout, responseType, method, headers, request_key, true);\n }\n else {\n var request = new XMLHttpRequest();\n var promise = new Promise((resolve, reject) => {\n request.open(method, url, true);\n request.timeout = timeout;\n request.responseType = responseType;\n\n // Attach optional request headers\n if (headers && typeof headers === 'object') {\n for (let key in headers) {\n request.setRequestHeader(key, headers[key]);\n }\n }\n\n request.onload = () => {\n if (request.status === 200) {\n if (['text', 'json'].indexOf(request.responseType) > -1) {\n resolve({ body: request.responseText, status: request.status });\n }\n else {\n resolve({ body: request.response, status: request.status });\n }\n }\n else if (request.status === 204) { // No Content\n resolve({ body: null, status: request.status });\n }\n else {\n reject(Error('Request error with a status of ' + request.statusText));\n }\n };\n request.onerror = (evt) => {\n reject(Error('There was a network error' + evt.toString()));\n };\n request.ontimeout = (evt) => {\n reject(Error('timeout '+ evt.toString()));\n };\n request.send();\n });\n\n promise = promise.then(response => {\n if (request_key) {\n delete Utils._requests[request_key];\n }\n\n if (proxy) {\n return WorkerBroker.withTransferables(response);\n }\n return response;\n });\n\n if (request_key) {\n Utils._requests[request_key] = request;\n }\n\n return promise;\n }\n};\n\n// Çancel a pending network request by user-provided request key\nUtils.cancelRequest = function (key) {\n // Check for a request that was proxied to the main thread\n if (Thread.is_worker && Utils._proxy_requests[key]) {\n return WorkerBroker.postMessage('Utils.cancelRequest', key); // forward to main thread\n }\n\n let req = Utils._requests[key];\n if (req) {\n log('trace', `Cancelling network request key '${key}'`);\n Utils._requests[key].abort();\n delete Utils._requests[key];\n }\n else {\n log('trace', `Could not find network request key '${key}'`);\n }\n};\n\n// Stringify an object into JSON, but convert functions to strings\nUtils.serializeWithFunctions = function (obj) {\n if (typeof obj === 'function') {\n return obj.toString();\n }\n\n let serialized = JSON.stringify(obj, function(k, v) {\n // Convert functions to strings\n if (typeof v === 'function') {\n return v.toString();\n }\n return v;\n });\n\n return serialized;\n};\n\n// Default to allowing high pixel density\n// Returns true if display density changed\nUtils.use_high_density_display = true;\nUtils.updateDevicePixelRatio = function () {\n let prev = Utils.device_pixel_ratio;\n Utils.device_pixel_ratio = (Utils.use_high_density_display && window.devicePixelRatio) || 1;\n return Utils.device_pixel_ratio !== prev;\n};\n\nif (Thread.is_main) {\n Utils.updateDevicePixelRatio();\n}\n\n// Used for differentiating between power-of-2 and non-power-of-2 textures\n// Via: http://stackoverflow.com/questions/19722247/webgl-wait-for-texture-to-load\nUtils.isPowerOf2 = function(value) {\n return (value & (value - 1)) === 0;\n};\n\n// Interpolate 'x' along a series of control points\n// 'points' is an array of control points in the form [x, y]\n//\n// Example:\n// Control points:\n// [0, 5]: when x=0, y=5\n// [4, 10]: when x=4, y=10\n//\n// Utils.interpolate(2, [[0, 5], [4, 10]]);\n// -> computes x=2, halfway between x=0 and x=4: (10 - 5) / 2 +5\n// -> returns 7.5\n//\n// TODO: add other interpolation methods besides linear\n//\nUtils.interpolate = function(x, points, transform) {\n // If this doesn't resemble a list of control points, just return the original value\n if (!Array.isArray(points) || !Array.isArray(points[0])) {\n return points;\n }\n else if (points.length < 1) {\n return points;\n }\n\n var x1, x2, d, y, y1, y2;\n\n // Min bounds\n if (x <= points[0][0]) {\n y = points[0][1];\n if (typeof transform === 'function') {\n y = transform(y);\n }\n }\n // Max bounds\n else if (x >= points[points.length-1][0]) {\n y = points[points.length-1][1];\n if (typeof transform === 'function') {\n y = transform(y);\n }\n }\n // Find which control points x is between\n else {\n for (var i=0; i < points.length - 1; i++) {\n if (x >= points[i][0] && x < points[i+1][0]) {\n // Linear interpolation\n x1 = points[i][0];\n x2 = points[i+1][0];\n\n // Multiple values\n if (Array.isArray(points[i][1])) {\n y = [];\n for (var c=0; c < points[i][1].length; c++) {\n if (typeof transform === 'function') {\n y1 = transform(points[i][1][c]);\n y2 = transform(points[i+1][1][c]);\n d = y2 - y1;\n y[c] = d * (x - x1) / (x2 - x1) + y1;\n }\n else {\n d = points[i+1][1][c] - points[i][1][c];\n y[c] = d * (x - x1) / (x2 - x1) + points[i][1][c];\n }\n }\n }\n // Single value\n else {\n if (typeof transform === 'function') {\n y1 = transform(points[i][1]);\n y2 = transform(points[i+1][1]);\n d = y2 - y1;\n y = d * (x - x1) / (x2 - x1) + y1;\n }\n else {\n d = points[i+1][1] - points[i][1];\n y = d * (x - x1) / (x2 - x1) + points[i][1];\n }\n }\n break;\n }\n }\n }\n return y;\n};\n\nUtils.toCSSColor = function (color) {\n if (color[3] === 1) { // full opacity\n return `rgb(${color.slice(0, 3).map(c => Math.round(c * 255)).join(', ')})`;\n }\n // RGB is between [0, 255] opacity is between [0, 1]\n return `rgba(${color.map((c, i) => (i < 3 && Math.round(c * 255)) || c).join(', ')})`;\n};\n","let debugSettings;\n\nexport default debugSettings = {\n // draws a blue rectangle border around the collision box of a label\n draw_label_collision_boxes: false,\n\n // draws a green rectangle border within the texture box of a label\n draw_label_texture_boxes: false,\n\n // suppreses fade-in of labels\n suppress_label_fade_in: false,\n\n // suppress animaton of label snap to pixel grid\n suppress_label_snap_animation: false,\n\n // show hidden labels for debugging\n show_hidden_labels: false,\n\n // collect feature/geometry stats on styling layers\n layer_stats: false,\n\n // draw scene in wireframe mode\n wireframe: false\n};\n\nexport function mergeDebugSettings (settings) {\n Object.assign(debugSettings, settings);\n}\n","// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nvar isObject = require('./_is-object');\nvar anObject = require('./_an-object');\nvar check = function (O, proto) {\n anObject(O);\n if (!isObject(proto) && proto !== null) throw TypeError(proto + \": can't set as prototype!\");\n};\nmodule.exports = {\n set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line\n function (test, buggy, set) {\n try {\n set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);\n set(test, []);\n buggy = !(test instanceof Array);\n } catch (e) { buggy = true; }\n return function setPrototypeOf(O, proto) {\n check(O, proto);\n if (buggy) O.__proto__ = proto;\n else set(O, proto);\n return O;\n };\n }({}, false) : undefined),\n check: check\n};\n","var isObject = require('./_is-object');\nvar setPrototypeOf = require('./_set-proto').set;\nmodule.exports = function (that, target, C) {\n var S = target.constructor;\n var P;\n if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {\n setPrototypeOf(that, P);\n } return that;\n};\n","var global = require('./_global');\nvar inheritIfRequired = require('./_inherit-if-required');\nvar dP = require('./_object-dp').f;\nvar gOPN = require('./_object-gopn').f;\nvar isRegExp = require('./_is-regexp');\nvar $flags = require('./_flags');\nvar $RegExp = global.RegExp;\nvar Base = $RegExp;\nvar proto = $RegExp.prototype;\nvar re1 = /a/g;\nvar re2 = /a/g;\n// \"new\" creates a new object, old webkit buggy here\nvar CORRECT_NEW = new $RegExp(re1) !== re1;\n\nif (require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function () {\n re2[require('./_wks')('match')] = false;\n // RegExp constructor can alter flags and IsRegExp works correct with @@match\n return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';\n}))) {\n $RegExp = function RegExp(p, f) {\n var tiRE = this instanceof $RegExp;\n var piRE = isRegExp(p);\n var fiU = f === undefined;\n return !tiRE && piRE && p.constructor === $RegExp && fiU ? p\n : inheritIfRequired(CORRECT_NEW\n ? new Base(piRE && !fiU ? p.source : p, f)\n : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)\n , tiRE ? this : proto, $RegExp);\n };\n var proxy = function (key) {\n key in $RegExp || dP($RegExp, key, {\n configurable: true,\n get: function () { return Base[key]; },\n set: function (it) { Base[key] = it; }\n });\n };\n for (var keys = gOPN(Base), i = 0; keys.length > i;) proxy(keys[i++]);\n proto.constructor = $RegExp;\n $RegExp.prototype = proto;\n require('./_redefine')(global, 'RegExp', $RegExp);\n}\n\nrequire('./_set-species')('RegExp');\n","// 7.2.9 SameValue(x, y)\nmodule.exports = Object.is || function is(x, y) {\n // eslint-disable-next-line no-self-compare\n return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;\n};\n","'use strict';\n\nvar anObject = require('./_an-object');\nvar sameValue = require('./_same-value');\nvar regExpExec = require('./_regexp-exec-abstract');\n\n// @@search logic\nrequire('./_fix-re-wks')('search', 1, function (defined, SEARCH, $search, maybeCallNative) {\n return [\n // `String.prototype.search` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.search\n function search(regexp) {\n var O = defined(this);\n var fn = regexp == undefined ? undefined : regexp[SEARCH];\n return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));\n },\n // `RegExp.prototype[@@search]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search\n function (regexp) {\n var res = maybeCallNative($search, regexp, this);\n if (res.done) return res.value;\n var rx = anObject(regexp);\n var S = String(this);\n var previousLastIndex = rx.lastIndex;\n if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;\n var result = regExpExec(rx, S);\n if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;\n return result === null ? -1 : result.index;\n }\n ];\n});\n","import log from './log';\n\n// Adds a base origin to relative URLs\nexport function addBaseURL (url, base) {\n if (!url || !isRelativeURL(url)) {\n return url;\n }\n\n var relative_path = (url[0] !== '/');\n var base_info;\n if (base) {\n base_info = document.createElement('a'); // use a temporary element to parse URL\n base_info.href = base;\n }\n else {\n base_info = window.location;\n }\n\n if (relative_path) {\n let path = pathForURL(base_info.href);\n url = path + url;\n }\n else {\n let origin = base_info.origin;\n if (!origin) {\n origin = base_info.protocol + '//' + base_info.host; // IE11 doesn't have origin property\n }\n url = origin + url;\n }\n\n return url;\n}\n\nexport function pathForURL (url) {\n if (typeof url === 'string' && url.search(/^(data|blob):/) === -1) {\n let qs = url.indexOf('?');\n if (qs > -1) {\n url = url.substr(0, qs);\n }\n\n let hash = url.indexOf('#');\n if (hash > -1) {\n url = url.substr(0, hash);\n }\n\n return url.substr(0, url.lastIndexOf('/') + 1) || '';\n }\n return '';\n}\n\nexport function extensionForURL (url) {\n url = url.split('/').pop();\n let last_dot = url.lastIndexOf('.');\n if (last_dot > -1) {\n return url.substring(last_dot + 1);\n }\n}\n\nexport function isLocalURL (url) {\n if (typeof url !== 'string') {\n return;\n }\n return (url.search(/^(data|blob):/) > -1);\n}\n\nexport function isRelativeURL (url) {\n if (typeof url !== 'string') {\n return;\n }\n return !(url.search(/^(http|https|data|blob):/) > -1 || url.substr(0, 2) === '//');\n}\n\n// Resolves './' and '../' components from relative path, to get a \"flattened\" path\nexport function flattenRelativeURL (url) {\n let dirs = (url || '').split('/');\n for (let d = 1; d < dirs.length; d++) {\n if (dirs[d] === '.') {\n dirs.splice(d, 1);\n d--;\n }\n else if (dirs[d] === '..') {\n d = d + 0;\n dirs.splice(d-1, 2);\n d--;\n }\n }\n return dirs.join('/');\n}\n\n// Add a set of query string params to a URL\n// params: hash of key/value pairs of query string parameters\n// returns array of: [modified URL, array of duplicate param name and values]\nexport function addParamsToURL (url, params) {\n if (!params || Object.keys(params).length === 0) {\n return [url, []];\n }\n\n var qs_index = url.indexOf('?');\n var hash_index = url.indexOf('#');\n\n // Save and trim hash\n var hash = '';\n if (hash_index > -1) {\n hash = url.slice(hash_index);\n url = url.slice(0, hash_index);\n }\n\n // Start query string\n if (qs_index === -1) {\n qs_index = url.length;\n url += '?';\n }\n qs_index++; // advanced past '?'\n\n // Build query string params\n var url_params = '';\n var dupes = [];\n for (var p in params) {\n if (getURLParameter(p, url) !== '') {\n dupes.push([p, params[p]]);\n continue;\n }\n url_params += `${p}=${params[p]}&`;\n }\n\n // Insert new query string params and restore hash\n url = url.slice(0, qs_index) + url_params + url.slice(qs_index) + hash;\n\n return [url, dupes];\n}\n\n// Polyfill (for Safari compatibility)\nlet _createObjectURL;\nexport function createObjectURL (url) {\n if (_createObjectURL === undefined) {\n _createObjectURL = (window.URL && window.URL.createObjectURL) || (window.webkitURL && window.webkitURL.createObjectURL);\n\n if (typeof _createObjectURL !== 'function') {\n _createObjectURL = null;\n log('warn', 'window.URL.createObjectURL (or vendor prefix) not found, unable to create local blob URLs');\n }\n }\n\n if (_createObjectURL) {\n return _createObjectURL(url);\n }\n else {\n return url;\n }\n}\n\nlet _revokeObjectURL;\nexport function revokeObjectURL (url) {\n if (_revokeObjectURL === undefined) {\n _revokeObjectURL = (window.URL && window.URL.revokeObjectURL) || (window.webkitURL && window.webkitURL.revokeObjectURL);\n\n if (typeof _revokeObjectURL !== 'function') {\n _revokeObjectURL = null;\n log('warn', 'window.URL.revokeObjectURL (or vendor prefix) not found, unable to create local blob URLs');\n }\n }\n\n if (_revokeObjectURL) {\n return _revokeObjectURL(url);\n }\n else {\n return url;\n }\n}\n\n// Get URL that the current script was loaded from\n// If currentScript is not available, loops through