mapDataStorage.js
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var _config = require("../../config");
var __DEV__ = _config.__DEV__;
var _util = require("zrender/lib/core/util");
var createHashMap = _util.createHashMap;
var isString = _util.isString;
var isArray = _util.isArray;
var each = _util.each;
var assert = _util.assert;
var _parseSVG = require("zrender/lib/tool/parseSVG");
var parseXML = _parseSVG.parseXML;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var storage = createHashMap(); // For minimize the code size of common echarts package,
// do not put too much logic in this module.
var _default = {
// The format of record: see `echarts.registerMap`.
// Compatible with previous `echarts.registerMap`.
registerMap: function (mapName, rawGeoJson, rawSpecialAreas) {
var records;
if (isArray(rawGeoJson)) {
records = rawGeoJson;
} else if (rawGeoJson.svg) {
records = [{
type: 'svg',
source: rawGeoJson.svg,
specialAreas: rawGeoJson.specialAreas
}];
} else {
// Backward compatibility.
if (rawGeoJson.geoJson && !rawGeoJson.features) {
rawSpecialAreas = rawGeoJson.specialAreas;
rawGeoJson = rawGeoJson.geoJson;
}
records = [{
type: 'geoJSON',
source: rawGeoJson,
specialAreas: rawSpecialAreas
}];
}
each(records, function (record) {
var type = record.type;
type === 'geoJson' && (type = record.type = 'geoJSON');
var parse = parsers[type];
parse(record);
});
return storage.set(mapName, records);
},
retrieveMap: function (mapName) {
return storage.get(mapName);
}
};
var parsers = {
geoJSON: function (record) {
var source = record.source;
record.geoJSON = !isString(source) ? source : typeof JSON !== 'undefined' && JSON.parse ? JSON.parse(source) : new Function('return (' + source + ');')();
},
// Only perform parse to XML object here, which might be time
// consiming for large SVG.
// Although convert XML to zrender element is also time consiming,
// if we do it here, the clone of zrender elements has to be
// required. So we do it once for each geo instance, util real
// performance issues call for optimizing it.
svg: function (record) {
record.svgXML = parseXML(record.source);
}
};
module.exports = _default;