qwc2-lts
Version:
QGIS Web Client
156 lines (155 loc) • 9.36 kB
JavaScript
var _ExpressionFeatureCache;
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
/**
* Copyright 2024 Sourcepole AG
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree.
*/
import nearley from 'nearley';
import grammar from './expr_grammar/grammar';
export var ExpressionFeatureCache = /*#__PURE__*/_createClass(function ExpressionFeatureCache() {
_classCallCheck(this, ExpressionFeatureCache);
});
_ExpressionFeatureCache = ExpressionFeatureCache;
_defineProperty(ExpressionFeatureCache, "store", {});
_defineProperty(ExpressionFeatureCache, "requests", new Set());
_defineProperty(ExpressionFeatureCache, "get", function (editIface, dataset, mapCrs, attr, value, promises) {
var key = dataset + ":" + attr + ":" + value;
if (key in _ExpressionFeatureCache.store) {
return _ExpressionFeatureCache.store[key];
} else if (!_ExpressionFeatureCache.requests.has(key)) {
_ExpressionFeatureCache.requests.add(key);
promises.push(new Promise(function (accept) {
editIface.getFeatures(dataset, mapCrs, function (result) {
if (_ExpressionFeatureCache.requests.has(key)) {
if (((result === null || result === void 0 ? void 0 : result.features) || []).length === 1) {
_ExpressionFeatureCache.store[key] = result.features[0];
} else {
_ExpressionFeatureCache.store[key] = null;
}
_ExpressionFeatureCache.requests["delete"](key);
}
accept();
}, null, [[attr, '=', value]]);
}));
}
return null;
});
_defineProperty(ExpressionFeatureCache, "clear", function () {
_ExpressionFeatureCache.store = {};
_ExpressionFeatureCache.requests = new Set();
});
export function parseExpression(expr, feature, editIface, mapPrefix, mapCrs, reevaluateCallback) {
var asFilter = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : false;
var reevaluate = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : false;
var parser = new nearley.Parser(nearley.Grammar.fromCompiled(grammar));
var promises = [];
window.qwc2ExpressionParserContext = {
feature: feature,
getFeature: function getFeature(layerName, attr, value) {
return ExpressionFeatureCache.get(editIface, mapPrefix + layerName, mapCrs, attr, value, promises);
},
asFilter: asFilter
};
var result = null;
try {
parser.feed(expr.replace(/\n/, ' '));
result = parser.results[0];
} catch (e) {
/* eslint-disable-next-line */
console.warn("Failed to evaluate expression " + expr.replace(/\n/, ' '));
}
delete window.qwc2ExpressionParserContext;
if (promises.length > 0) {
// Expression evaluation is incomplete due to pending feature requests, reevaluate when promises are resolved
Promise.all(promises).then(function () {
return parseExpression(expr, feature, editIface, mapPrefix, mapCrs, reevaluateCallback, asFilter, true);
});
return null;
} else {
if (reevaluate) {
reevaluateCallback();
}
if (asFilter) {
result = [result];
}
return result;
}
}
export function parseExpressionsAsync(expressions, feature, editIface, mapPrefix, mapCrs, asFilter) {
var promises = [];
return new Promise(function (resolve) {
window.qwc2ExpressionParserContext = {
feature: feature,
getFeature: function getFeature(layerName, attr, value) {
return ExpressionFeatureCache.get(editIface, mapPrefix + layerName, mapCrs, attr, value, promises);
},
asFilter: asFilter
};
var results = Object.entries(expressions).reduce(function (res, _ref) {
var _ref2 = _slicedToArray(_ref, 2),
key = _ref2[0],
expr = _ref2[1];
var parser = new nearley.Parser(nearley.Grammar.fromCompiled(grammar));
try {
parser.feed(expr.replace(/\n/, ' '));
return _objectSpread(_objectSpread({}, res), {}, _defineProperty({}, key, parser.results[0]));
} catch (e) {
/* eslint-disable-next-line */
console.warn("Failed to evaluate expression " + expr.replace(/\n/, ' '));
return res;
}
}, {});
delete window.qwc2ExpressionParserContext;
if (promises.length > 0) {
// Expression evaluation is incomplete due to pending feature requests, reevaluate when promises are resolved
Promise.all(promises).then(parseExpressionsAsync(expressions, feature, editIface, mapPrefix, mapCrs, asFilter).then(resolve(results)));
} else {
resolve(results);
}
});
}
var FeatureTemplateFactories = {};
export function setFeatureTemplateFactory(dataset, factory) {
FeatureTemplateFactories[dataset] = factory;
}
export function getFeatureTemplate(editConfig, feature, editIface, mapPrefix, mapCrs, callback) {
if (editConfig.editDataset in FeatureTemplateFactories) {
feature = FeatureTemplateFactories[editConfig.editDataset](feature);
}
// Apply default values
var defaultFieldExpressions = editConfig.fields.reduce(function (res, field) {
if (field.defaultValue) {
return _objectSpread(_objectSpread({}, res), {}, _defineProperty({}, field.id, field.defaultValue.replace(/^expr:/, '')));
}
return res;
}, {});
ExpressionFeatureCache.clear();
parseExpressionsAsync(defaultFieldExpressions, feature, editIface, mapPrefix, mapCrs).then(function (result) {
// Adjust values based on field type
editConfig.fields.forEach(function (field) {
if (field.id in result && field.type === "date") {
result[field.id] = result[field.id].split("T")[0];
}
});
callback(_objectSpread(_objectSpread({}, feature), {}, {
properties: _objectSpread(_objectSpread({}, feature.properties), result)
}));
});
}