| /* |
| * 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. |
| */ |
| |
| import {each, createHashMap, HashMap} from 'zrender/src/core/util'; |
| import mapDataStorage, { MapRecord } from './mapDataStorage'; |
| import geoJSONLoader from './geoJSONLoader'; |
| import geoSVGLoader from './geoSVGLoader'; |
| import BoundingRect from 'zrender/src/core/BoundingRect'; |
| import { NameMap } from './geoTypes'; |
| import Region from './Region'; |
| import { Dictionary } from 'zrender/src/core/types'; |
| import Group from 'zrender/src/graphic/Group'; |
| |
| |
| interface Loader { |
| load: (mapName: string, mapRecord: MapRecord, nameProperty?: string) => { |
| regions?: Region[]; |
| boundingRect?: BoundingRect; |
| }; |
| makeGraphic?: (mapName: string, mapRecord: MapRecord, hostKey: string) => Group; |
| removeGraphic?: (mapName: string, mapRecord: MapRecord, hostKey: string) => void; |
| } |
| const loaders = { |
| geoJSON: geoJSONLoader, |
| svg: geoSVGLoader |
| } as Dictionary<Loader>; |
| |
| export default { |
| |
| load: function (mapName: string, nameMap: NameMap, nameProperty?: string): { |
| regions: Region[]; |
| // Key: mapName |
| regionsMap: HashMap<Region>; |
| // Key: mapName |
| nameCoordMap: HashMap<number[]>; |
| boundingRect: BoundingRect |
| } { |
| const regions = [] as Region[]; |
| const regionsMap = createHashMap<Region>(); |
| const nameCoordMap = createHashMap<Region['center']>(); |
| let boundingRect: BoundingRect; |
| const mapRecords = retrieveMap(mapName); |
| |
| each(mapRecords, function (record) { |
| const singleSource = loaders[record.type].load(mapName, record, nameProperty); |
| |
| each(singleSource.regions, function (region) { |
| let regionName = region.name; |
| |
| // Try use the alias in geoNameMap |
| if (nameMap && nameMap.hasOwnProperty(regionName)) { |
| region = region.cloneShallow(regionName = nameMap[regionName]); |
| } |
| |
| regions.push(region); |
| regionsMap.set(regionName, region); |
| nameCoordMap.set(regionName, region.center); |
| }); |
| |
| const rect = singleSource.boundingRect; |
| if (rect) { |
| boundingRect |
| ? boundingRect.union(rect) |
| : (boundingRect = rect.clone()); |
| } |
| }); |
| |
| return { |
| regions: regions, |
| regionsMap: regionsMap, |
| nameCoordMap: nameCoordMap, |
| // FIXME Always return new ? |
| boundingRect: boundingRect || new BoundingRect(0, 0, 0, 0) |
| }; |
| }, |
| |
| /** |
| * @param hostKey For cache. |
| * @return Roots. |
| */ |
| makeGraphic: function (mapName: string, hostKey: string): Group[] { |
| const mapRecords = retrieveMap(mapName); |
| const results = [] as Group[]; |
| each(mapRecords, function (record) { |
| const method = loaders[record.type].makeGraphic; |
| method && results.push(method(mapName, record, hostKey)); |
| }); |
| return results; |
| }, |
| |
| /** |
| * @param hostKey For cache. |
| */ |
| removeGraphic: function (mapName: string, hostKey: string): void { |
| const mapRecords = retrieveMap(mapName); |
| each(mapRecords, function (record) { |
| const method = loaders[record.type].makeGraphic; |
| method && method(mapName, record, hostKey); |
| }); |
| } |
| }; |
| |
| function mapNotExistsError(mapName: string): void { |
| if (__DEV__) { |
| console.error( |
| 'Map ' + mapName + ' not exists. The GeoJSON of the map must be provided.' |
| ); |
| } |
| } |
| |
| function retrieveMap(mapName: string): MapRecord[] { |
| const mapRecords = mapDataStorage.retrieveMap(mapName) || []; |
| |
| if (__DEV__) { |
| if (!mapRecords.length) { |
| mapNotExistsError(mapName); |
| } |
| } |
| |
| return mapRecords; |
| } |
| |