mmr-gl-react
Version:
React components for MMR GL JS-compatible libraries
97 lines • 3.64 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.normalizeStyle = void 0;
var refProps = ['type', 'source', 'source-layer', 'minzoom', 'maxzoom', 'filter', 'layout'];
// Prepare a map style object for diffing
// If immutable - convert to plain object
// Work around some issues in older styles that would fail Mapbox's diffing
function normalizeStyle(style) {
var e_1, _a;
if (!style) {
return null;
}
if (typeof style === 'string') {
return style;
}
if ('toJS' in style) {
style = style.toJS();
}
if (!style.layers) {
return style;
}
var layerIndex = {};
try {
for (var _b = __values(style.layers), _c = _b.next(); !_c.done; _c = _b.next()) {
var layer = _c.value;
layerIndex[layer.id] = layer;
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
var layers = style.layers.map(function (layer) {
var e_2, _a;
var normalizedLayer = null;
if ('interactive' in layer) {
normalizedLayer = Object.assign({}, layer);
// Breaks style diffing :(
// @ts-ignore legacy field not typed
delete normalizedLayer.interactive;
}
// Style diffing doesn't work with refs so expand them out manually before diffing.
// @ts-ignore legacy field not typed
var layerRef = layerIndex[layer.ref];
if (layerRef) {
normalizedLayer = normalizedLayer || Object.assign({}, layer);
// @ts-ignore
delete normalizedLayer.ref;
try {
// https://github.com/mapbox/mapbox-gl-js/blob/master/src/style-spec/deref.js
for (var refProps_1 = __values(refProps), refProps_1_1 = refProps_1.next(); !refProps_1_1.done; refProps_1_1 = refProps_1.next()) {
var propName = refProps_1_1.value;
if (propName in layerRef) {
normalizedLayer[propName] = layerRef[propName];
}
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (refProps_1_1 && !refProps_1_1.done && (_a = refProps_1.return)) _a.call(refProps_1);
}
finally { if (e_2) throw e_2.error; }
}
}
return normalizedLayer || layer;
});
// Do not mutate the style object provided by the user
return __assign(__assign({}, style), { layers: layers });
}
exports.normalizeStyle = normalizeStyle;
//# sourceMappingURL=style-utils.js.map