rlayers/layer/RLayerRasterMBTiles.js

React Components for OpenLayers

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var layer_1 = require("ol/layer");
var RLayerRaster_1 = __importDefault(require("./RLayerRaster"));
var debug_1 = __importDefault(require("../debug"));
/**
 * A layer from a remote MBTiles raster source
 *
 * WARNING: Using this module requires manually installing `ol-mbtiles`
 *
 * `npm install ol-mbtiles`
 *
 * Be sure to read its own documentation for tips on how to improve
 * its performance (COOP/COEP, WASM compression, preloading...)
 *
 * Requires an `RMap` context
 */
var RLayerRasterMBTiles = /** @class */ (function (_super) {
    __extends(RLayerRasterMBTiles, _super);
    function RLayerRasterMBTiles(props, context) {
        var _this = _super.call(this, props, context) || this;
        _this.addon = Promise.resolve().then(function () { return __importStar(require('ol-mbtiles')); });
        _this.ol = new layer_1.Tile();
        _this.source = null;
        _this.abort = null;
        _this.createSource();
        return _this;
    }
    RLayerRasterMBTiles.prototype.createSource = function () {
        var _this = this;
        (0, debug_1.default)('createSource start', this);
        this.metadata = this.addon.then(function (mod) {
            var _a, _b, _c, _d;
            return mod.importMBTiles({
                url: _this.props.url,
                sqlWorkers: (_a = _this.props.workers) !== null && _a !== void 0 ? _a : 4,
                sqlCacheSize: (_b = _this.props.sqlCacheSize) !== null && _b !== void 0 ? _b : 4096,
                maxSqlPageSize: (_c = _this.props.maxSqlPageSize) !== null && _c !== void 0 ? _c : 4096,
                backendType: (_d = _this.props.backend) !== null && _d !== void 0 ? _d : 'sync'
            });
        });
        var abort = new AbortController();
        this.abort = abort;
        Promise.all([this.addon, this.metadata]).then(function (_a) {
            var _b = __read(_a, 2), addon = _b[0], md = _b[1];
            if (abort.signal.aborted) {
                (0, debug_1.default)('createSource aborted', _this);
                md.pool.then(function (p) { return p.close(); });
                return;
            }
            _this.source = new addon.MBTilesRasterSource(md);
            _this.eventSources = [_this.ol, _this.source];
            _this.ol.setSource(_this.source);
            _this.attachOldEventHandlers(_this.source);
            if (_this.props.onMetadataReady)
                _this.props.onMetadataReady.call(_this, md);
            return _this.source;
        });
    };
    RLayerRasterMBTiles.prototype.destroySource = function () {
        (0, debug_1.default)('destroySource', this, this.abort);
        if (this.source) {
            this.source.dispose();
            this.source = null;
            if (this.ol)
                this.ol.setSource(null);
        }
        if (this.abort) {
            this.abort.abort();
            this.abort = null;
        }
    };
    RLayerRasterMBTiles.prototype.componentWillUnmount = function () {
        _super.prototype.componentWillUnmount.call(this);
        this.destroySource();
    };
    RLayerRasterMBTiles.prototype.refresh = function (prevProps) {
        _super.prototype.refresh.call(this, prevProps);
        if ((prevProps === null || prevProps === void 0 ? void 0 : prevProps.url) !== this.props.url) {
            this.destroySource();
            this.createSource();
        }
    };
    return RLayerRasterMBTiles;
}(RLayerRaster_1.default));
exports.default = RLayerRasterMBTiles;
//# sourceMappingURL=RLayerRasterMBTiles.js.map