kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
73 lines (72 loc) • 7.17 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getMVTMetadata = getMVTMetadata;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _mvt = require("@loaders.gl/mvt");
// SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
/**
* MVTSource in current loaders ignores attribution
* TODO: remove once MVTSource is ready
*/
function getMVTMetadata(_x) {
return _getMVTMetadata.apply(this, arguments);
}
function _getMVTMetadata() {
_getMVTMetadata = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee(metadataURL) {
var _TileJSONLoader$parse;
var response, tileJSON, metadata, rawMetadata;
return _regenerator["default"].wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
if (metadataURL) {
_context.next = 2;
break;
}
return _context.abrupt("return", null);
case 2:
_context.prev = 2;
_context.next = 5;
return fetch(metadataURL);
case 5:
response = _context.sent;
_context.next = 12;
break;
case 8:
_context.prev = 8;
_context.t0 = _context["catch"](2);
// eslint-disable-next-line no-console
console.error(_context.t0.message);
return _context.abrupt("return", null);
case 12:
if (response.ok) {
_context.next = 15;
break;
}
// eslint-disable-next-line no-console
console.error(response.statusText);
return _context.abrupt("return", null);
case 15:
_context.next = 17;
return response.text();
case 17:
tileJSON = _context.sent;
metadata = ((_TileJSONLoader$parse = _mvt.TileJSONLoader.parseTextSync) === null || _TileJSONLoader$parse === void 0 ? void 0 : _TileJSONLoader$parse.call(_mvt.TileJSONLoader, tileJSON)) || null;
rawMetadata = JSON.parse(tileJSON);
if (rawMetadata !== null && rawMetadata !== void 0 && rawMetadata.attribution) {
metadata.attributions = [rawMetadata.attribution];
}
return _context.abrupt("return", metadata);
case 22:
case "end":
return _context.stop();
}
}, _callee, null, [[2, 8]]);
}));
return _getMVTMetadata.apply(this, arguments);
}
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