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/* Copyright© 2000 - 2024 SuperMap Software Co.Ltd. All rights reserved.
* This program are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution and is available at http://www.apache.org/licenses/LICENSE-2.0.html.*/
import { WebMapService } from './WebMapService';
import { transformServerUrl } from './utils/util';
import cloneDeep from 'lodash.clonedeep';
const WORLD_WIDTH = 360;
/**
* @class WebMap
* @version 9.1.2
* @category iPortal/Online Resources Map
* @classdesc 对接 iPortal/Online 地图类。目前支持地图坐标系包括：'EPSG:3857'，'EPSG:4326'，'EPSG:4490'，'EPSG:4214'，'EPSG:4610'。
* <div style="padding: 20px;border: 1px solid #eee;border-left-width: 5px;border-radius: 3px;border-left-color: #ce4844;">
* <p style="color: #ce4844">Notice</p>
* <p style="font-size: 13px">该功能依赖 <a href='https://iclient.supermap.io/web/libs/geostats/geostats.js'>geostats</a> 和 <a href='https://iclient.supermap.io/web/libs/jsonsql/jsonsql.js'>JsonSql</a> 插件，请确认引入该插件。</p>
* <p style="font-size: 13px"><script type="text/javascript" src="https://iclient.supermap.io/web/libs/geostats/geostats.js"></script></p>
* <p style="font-size: 13px"><script type="text/javascript" src="https://iclient.supermap.io/web/libs/jsonsql/jsonsql.js"></script></p>
* </div>
* @modulecategory Mapping
* @param {number} id - iPortal|Online 地图 ID。
* @param {Object} options - 基础参数。
* @param {string} [options.target='map'] - 地图容器 ID。
* @param {string} [options.server="https://www.supermapol.com"] - SuperMap iPortal/Online 服务器地址。当设置 `id` 时有效。
* @param {string} [options.accessToken] - 用于访问 SuperMap iPortal 、SuperMap Online 中受保护的服务。当设置 `id` 时有效。
* @param {string} [options.accessKey] - SuperMap iServer 提供的一种基于 Token（令牌）的用户身份验证机制。当设置 `id` 时有效。
* @param {String} [options.tiandituKey] - 用于访问天地图的服务。当设置 `id` 时有效。
* @param {String} [options.googleMapsAPIKey] - 用于访问谷歌地图。当设置 `id` 时有效。
* @param {String} [options.googleMapsLanguage] - 用于定义在谷歌地图图块上显示标签的语言。当设置 `id` 且底图为谷歌地图时有效。
* @param {boolean} [options.withCredentials=false] - 请求是否携带 cookie。当设置 `id` 时有效。
* @param {boolean} [options.excludePortalProxyUrl] - server 传递过来的 URL 是否带有代理。当设置 `id` 时有效。
* @param {boolean} [options.ignoreBaseProjection = 'false'] - 是否忽略底图坐标系和叠加图层坐标系不一致。
* @param {String} [options.iportalServiceProxyUrlPrefix] - iportal的代理服务地址前缀。
* @param {Object} mapOptions - 地图参数。
* @param {string} [mapOptions.center] - 中心点。
* @param {string} [mapOptions.zoom] - 缩放级别。
* @param {string} [mapOptions.bearing] - 旋转角度。
* @param {string} [mapOptions.pitch] - 倾角。
* @fires WebMap#getmapfailed
* @fires WebMap#getwmtsfailed
* @fires WebMap#getlayersfailed
* @fires WebMap#getfeaturesfailed
* @fires WebMap#addlayerssucceeded
* @usage
*/
export function createWebMapExtending(SuperClass, { mapRepo }) {
return class WebMap extends SuperClass {
constructor(
id,
options = {
layerFilter: function () {
return true;
}
},
mapOptions = { style: { version: 8, sources: {}, layers: [] } }
) {
super();
if (typeof id === 'string' || typeof id === 'number') {
this.mapId = id;
} else if (id !== null && typeof id === 'object') {
this.webMapInfo = id;
}
if (!this.mapId && !mapOptions.center && !mapOptions.zoom) {
mapOptions.center = [0, 0];
mapOptions.zoom = 0;
}
if (options.map) {
this.map = options.map;
}
this.options = Object.assign({}, options);
delete this.options.map;
this._setServer(options.server || 'https://www.supermapol.com');
this.options.target = options.target || 'map';
this.options.withCredentials = options.withCredentials || false;
this.mapOptions = mapOptions;
this.webMapService = new WebMapService(id, this.options);
this.eventTypes = [
'getmapinfofailed',
'getlayerdatasourcefailed',
'projectionisnotmatch',
'mapinitialized',
'notsupportbaidumap',
'dataflowfeatureupdated',
'addlayerssucceeded',
'addlayerchanged',
'getlayersfailed',
'beforeremovemap',
'crsnotsupport'
];
this._cacheCleanLayers = [];
this._mapInitializedHandler = this._mapInitializedHandler.bind(this);
this._addLayersSucceededHandler = this._addLayersSucceededHandler.bind(this);
this._addLayerChangedHandler = this._addLayerChangedHandler.bind(this);
this._initWebMap(!this.map);
}
resize(keepBounds = false) {
this.map && this.map.resize();
this._handler && this._handler.echartsLayerResize();
const mapContainerStyle = window.getComputedStyle(document.getElementById(this.options.target));
const { bounds } = this.mapOptions;
if (keepBounds && this.map && bounds && mapContainerStyle) {
const zoom = this._getResizedZoom(bounds, mapContainerStyle);
if (zoom !== this.map.getZoom()) {
this.map && this.map.setZoom(zoom);
}
}
}
setCrs(crs) {
if (this.map) {
this.mapOptions.crs = crs;
if (this.mapOptions.crs) {
if (crs.epsgCode) {
this.mapOptions.crs = new mapRepo.CRS(
this.mapOptions.crs.epsgCode,
this.mapOptions.crs.WKT,
this.mapOptions.crs.extent,
this.mapOptions.crs.unit
);
this.map.setCRS(this.mapOptions.crs);
} else {
this.map.setCRS(mapRepo.CRS.get(crs));
}
}
}
}
setCenter(center) {
if (this.map && this._centerValid(center)) {
this.mapOptions.center = center;
const { lng, lat } = this.map.getCenter();
if (center[0] !== +lng.toFixed(4) || center[1] !== +lat.toFixed(4)) {
this.map.setCenter(center, { from: 'setCenter' });
}
}
}
setRenderWorldCopies(renderWorldCopies) {
if (this.map) {
this.mapOptions.renderWorldCopies = renderWorldCopies;
this.map.setRenderWorldCopies(renderWorldCopies);
}
}
setBearing(bearing) {
if (this.map) {
this.mapOptions.bearing = bearing;
if (bearing !== +this.map.getBearing().toFixed(2)) {
(bearing || bearing === 0) && this.map.setBearing(bearing);
}
}
}
setPitch(pitch) {
if (this.map) {
this.mapOptions.pitch = pitch;
if (pitch !== +this.map.getPitch().toFixed(2)) {
(pitch || pitch === 0) && this.map.setPitch(pitch);
}
}
}
setStyle(style) {
if (this.map) {
this.mapOptions.style = style;
this._initWebMap();
}
}
setRasterTileSize(tileSize) {
if (!this.map || tileSize <= 0) {
return;
}
const sources = this.map.getStyle().sources;
Object.keys(sources).forEach((sourceId) => {
if (sources[sourceId].type === 'raster' && sources[sourceId].rasterSource === 'iserver') {
this._updateRasterSource(sourceId, { tileSize });
}
});
}
setMaxBounds(maxBounds) {
if (this.map) {
this.mapOptions.maxBounds = maxBounds;
maxBounds && this.map.setMaxBounds(maxBounds);
}
}
setMinZoom(minZoom) {
if (this.map) {
this.mapOptions.minZoom = minZoom;
(minZoom || minZoom === 0) && this.map.setMinZoom(minZoom);
}
}
setMaxZoom(maxZoom) {
if (this.map) {
this.mapOptions.maxZoom = maxZoom;
(maxZoom || maxZoom === 0) && this.map.setMaxZoom(maxZoom);
}
}
getAppreciableLayers() {
return (this._handler && this._handler.getAppreciableLayers()) || [];
}
getLegendInfo() {
return (this._handler && this._handler.getLegendInfo()) || [];
}
getLayerCatalog() {
return (this._handler && this._handler.getLayerCatalog()) || [];
}
updateOverlayLayer(layerInfo, features, mergeByField) {
this._handler && this._handler.updateOverlayLayer(layerInfo, features, mergeByField);
}
copyLayer(id, layerInfo) {
return this._handler && this._handler.copyLayer(id, layerInfo);
}
clean(removeMap = true) {
if (this.map) {
removeMap && this.fire('beforeremovemap', { map: this.map });
if (this._handler) {
this._handler.clean(removeMap);
this._handler = null;
}
this.map = null;
if (this.mapOptions && (this.mapId || this.webMapInfo)) {
this.mapOptions.center = null;
this.mapOptions.zoom = null;
}
}
}
cleanLayers() {
// 清空追加的地图图层以及对应的事件
if (!this.map) {
return;
}
const sourceList = [];
for (const item of this._cacheCleanLayers) {
item.renderLayers.forEach((layerId) => {
if (this.map.getLayer(layerId)) {
this.map.removeLayer(layerId);
}
});
if (this.map.getSource(item.renderSource.id) && !item.l7Layer) {
sourceList.push(item.renderSource.id);
}
}
Array.from(new Set(sourceList)).forEach((sourceId) => {
this.map.removeSource(sourceId);
});
this._cacheCleanLayers = [];
this.clean(false);
}
_initWebMap(clean = true) {
clean && this.clean();
if (this.webMapInfo) {
// 传入是webmap对象
const mapInfo = this.webMapInfo;
mapInfo.mapParams = {
title: this.webMapInfo.title,
description: this.webMapInfo.description
};
this.mapParams = mapInfo.mapParams;
Promise.resolve()
.then(() => {
this._getMapInfo(mapInfo);
})
.catch((error) => {
this.fire('getmapinfofailed', { error });
});
return;
} else if (!this.mapId || !this.options.serverUrl) {
Promise.resolve()
.then(() => {
this._createMap('MapStyle');
})
.catch((error) => {
this.fire('getmapinfofailed', { error });
});
return;
}
this._taskID = new Date();
this.getMapInfo(this._taskID);
}
setZoom(zoom) {
if (this.map) {
this.mapOptions.zoom = zoom;
if (zoom !== +this.map.getZoom().toFixed(2)) {
(zoom || zoom === 0) && this.map.setZoom(zoom, { from: 'setZoom' });
}
}
}
setServerUrl(serverUrl) {
this._setServer(serverUrl);
this.webMapService.setServerUrl(this.options.serverUrl);
}
setWithCredentials(withCredentials) {
this.options.withCredentials = withCredentials;
this.webMapService.setWithCredentials(withCredentials);
}
setProxy(proxy) {
this.options.proxy = proxy;
this.webMapService.setProxy(proxy);
}
setMapId(mapId) {
if (typeof mapId === 'string' || typeof mapId === 'number') {
this.mapId = mapId;
this.webMapInfo = null;
} else if (mapId !== null && typeof mapId === 'object') {
this.webMapInfo = mapId;
}
this.webMapService.setMapId(mapId);
if (!mapId) {
return;
}
setTimeout(() => {
this._initWebMap();
}, 0);
}
getMapInfo(_taskID) {
this.webMapService
.getMapInfo()
.then(
(mapInfo) => {
if (this._taskID !== _taskID) {
return;
}
// 存储地图的名称以及描述等信息，返回给用户
this.mapParams = mapInfo.mapParams;
this._getMapInfo(mapInfo);
},
(error) => {
throw error;
}
)
.catch((error) => {
this.fire('getmapinfofailed', { error });
console.log(error);
});
}
_createWebMapFactory() {
throw new Error('_createWebMapFactory is not implemented');
}
_mapInitializedHandler({ map }) {
this.map = map;
this.fire('mapinitialized', { map: this.map });
}
_addLayersSucceededHandler(params) {
this.mapParams = params.mapparams;
this._cacheCleanLayers = params.layers;
this.fire('addlayerssucceeded', params);
}
_addLayerChangedHandler(params) {
this._cacheCleanLayers = params.layers;
this.fire('addlayerchanged', params);
}
_getMapInfo(mapInfo) {
const type = +mapInfo.version.split('.')[0] >= 3 ? 'WebMap3' : 'WebMap2';
this._createMap(type, mapInfo);
}
_createMap(type, mapInfo) {
const commonOptions = {
...this.options,
iportalServiceProxyUrlPrefix: this.webMapService.iportalServiceProxyUrl
};
const commonEvents = {
...this.eventTypes.reduce((events, name) => {
events[name] = (params) => {
this.fire(name, params);
};
return events;
}, {}),
mapinitialized: this._mapInitializedHandler,
addlayerssucceeded: this._addLayersSucceededHandler,
addlayerchanged: this._addLayerChangedHandler
};
const mapOptions = cloneDeep(this.mapOptions);
const WebMapFactory = this._createWebMapFactory(type);
this._handler = new WebMapFactory(this.mapId, commonOptions, mapOptions);
// this._handler.setEventedParent(this);
for (const type in commonEvents) {
this._handler.on(type, commonEvents[type]);
}
let _mapInfo = {};
const layerFilter = this.options.layerFilter;
if (mapInfo) {
_mapInfo = {
...mapInfo,
layers: typeof layerFilter === 'function' ? mapInfo.layers.filter(layerFilter) : mapInfo.layers
};
}
this._handler.initializeMap(_mapInfo, this.map);
}
_updateRasterSource(sourceId, options) {
if (!sourceId) {
return;
}
const source = this.map.getSource(sourceId);
Object.assign(source, options);
this.map.style.sourceCaches[sourceId].clearTiles();
this.map.style.sourceCaches[sourceId].update(this.map.transform);
this.map.triggerRepaint();
}
_getResizedZoom(bounds, mapContainerStyle, tileSize = 512, worldWidth = WORLD_WIDTH) {
const { width, height } = mapContainerStyle;
const lngArcLength = Math.abs(bounds.getEast() - bounds.getWest());
const latArcLength = Math.abs(this._getBoundsRadian(bounds.getSouth()) - this._getBoundsRadian(bounds.getNorth()));
const lngResizeZoom = +Math.log2(worldWidth / ((lngArcLength / parseInt(width)) * tileSize)).toFixed(2);
const latResizeZoom = +Math.log2(worldWidth / ((latArcLength / parseInt(height)) * tileSize)).toFixed(2);
if (lngResizeZoom <= latResizeZoom) {
return lngResizeZoom;
}
return latResizeZoom;
}
_getBoundsRadian(point) {
return (180 / Math.PI) * Math.log(Math.tan(Math.PI / 4 + (point * Math.PI) / 360));
}
_centerValid(center) {
if (center && (center.length > 0 || typeof center === mapRepo.LngLat || center.lng)) {
return true;
}
return false;
}
_getWebMapInstance() {
return this._handler;
}
_setServer(url) {
this.options.server = transformServerUrl(url);
this.options.serverUrl = this.options.server;
}
}
}