rc-leaflet
Version:
React Map Components of Leaflet
378 lines (377 loc) • 17.7 kB
JavaScript
"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 (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
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 __spread = (this && this.__spread) || function () {
for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));
return ar;
};
var __values = (this && this.__values) || function (o) {
var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
if (m) return m.call(o);
return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var leaflet_1 = __importDefault(require("leaflet"));
var Array_1 = require("../../util/Array");
var throttle_1 = __importDefault(require("../../util/throttle"));
var creator_1 = require("../Icon/creator");
exports.defaultOptions = {
points: [],
throttleThreshold: 20480,
throttleDuration: 60
};
var MassLayer = /** @class */ (function (_super) {
__extends(MassLayer, _super);
function MassLayer(options) {
var _this = _super.call(this, options) || this;
_this.getOptions = function () { return _this.options; };
_this.getPoints = function () { return _this.options.points; };
_this.getIconUrl = function (point) { return point.iconUrl || _this.options.iconUrl || creator_1.defaultOptions.iconUrl; };
_this.onClick = function (e) {
_this.click = _this.hover;
if (_this.click) {
_this.fire('click', _this.click);
}
};
_this.onMouseMove = function (e) {
var e_1, _a;
var points = _this.options.points;
if (points && points.length) {
var _b = e.containerPoint, x = _b.x, y = _b.y;
var length_1 = points.length;
var array = __spread(points).reverse();
var target = void 0;
try {
for (var _c = __values(array.entries()), _d = _c.next(); !_d.done; _d = _c.next()) {
var _e = __read(_d.value, 2), index = _e[0], point = _e[1];
var _f = _this.getIconBox(point), top_1 = _f.top, bottom = _f.bottom, left = _f.left, right = _f.right;
if (x > left && x < right && y > top_1 && y < bottom) {
target = { index: length_1 - index - 1, point: point };
break;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_d && !_d.done && (_a = _c.return)) _a.call(_c);
}
finally { if (e_1) throw e_1.error; }
}
if (target) {
leaflet_1.default.DomUtil.addClass(_this.canvas, 'leaflet-interactive');
_this.fire('mousemove', __assign({}, target, { latlng: _this._map.containerPointToLatLng(e.containerPoint) }));
}
else {
leaflet_1.default.DomUtil.removeClass(_this.canvas, 'leaflet-interactive');
}
_this.hover = target;
if (_this.prevHover && (!target || _this.prevHover.point !== target.point)) {
_this.fire('mouseout', _this.prevHover);
}
if (target && (!_this.prevHover || target.point !== _this.prevHover.point)) {
_this.fire('mouseover', target);
}
_this.prevHover = target;
}
};
_this.reset = function () {
var _a = _this._map.getSize(), x = _a.x, y = _a.y;
if (_this.canvas.width !== x || _this.canvas.height !== y) {
_this.canvas.width = x;
_this.canvas.height = y;
}
if (!_this._map) {
return;
}
var point = leaflet_1.default.DomUtil.getPosition(_this._map.getPanes().mapPane);
leaflet_1.default.DomUtil.setPosition(_this.canvas, leaflet_1.default.point(-Math.round(point.x), -Math.round(point.y)));
_this.draw();
};
_this.zoomAnim = function (e) {
var scale = _this._map.getZoomScale(e.zoom, _this._map.getZoom());
var position = leaflet_1.default.DomUtil.getPosition(_this.canvas);
var viewHalf = _this._map.getSize().multiplyBy(0.5);
var currentCenterPoint = _this._map.project(_this._map.getCenter(), e.zoom);
var destCenterPoint = _this._map.project(e.center, e.zoom);
var centerOffset = destCenterPoint.subtract(currentCenterPoint);
var topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
leaflet_1.default.DomUtil.setTransform(_this.canvas, topLeftOffset, scale);
};
_this.onPopupClose = function () { _this.click = undefined; };
leaflet_1.default.Util.setOptions(_this, leaflet_1.default.Util.extend(exports.defaultOptions, options));
_this.canvas = leaflet_1.default.DomUtil.create('canvas', 'leaflet-zoom-animated');
_this.ctx = _this.canvas.getContext('2d');
_this.prepareIcons();
_this.setThrottledReset(_this.options);
return _this;
}
MassLayer.prototype.setThrottledReset = function (options) {
var threshold = options.throttleThreshold || exports.defaultOptions.throttleThreshold;
var duration = options.throttleDuration || exports.defaultOptions.throttleDuration;
this.throttledReset = options.points.length <= threshold ? this.reset : throttle_1.default(this.reset, duration);
};
MassLayer.prototype.onAdd = function (map) {
var _a = map.getSize(), x = _a.x, y = _a.y;
this.canvas.width = x;
this.canvas.height = y;
map.on('click', this.onClick, this);
map.on('mousemove', this.onMouseMove, this);
map.on('move', this.throttledReset, this);
map.on('moveend', this.reset, this);
map.on('zoomanim', this.zoomAnim, this);
this.on('popupclose', this.onPopupClose);
this.getPane().appendChild(this.canvas);
this.draw();
return this;
};
MassLayer.prototype.onRemove = function (map) {
map.off('click', this.onClick, this);
map.off('mousemove', this.onMouseMove, this);
map.off('move', this.throttledReset, this);
map.off('moveend', this.reset, this);
map.off('zoomanim', this.zoomAnim, this);
this.off();
leaflet_1.default.DomUtil.remove(this.canvas);
return this;
};
MassLayer.prototype.addTo = function (map) {
map.addLayer(this);
return this;
};
MassLayer.prototype.getLatLng = function () {
return this.hover ? this.hover.point.position : this._map.getCenter();
};
MassLayer.prototype.setOptions = function (options) {
this.closePopup();
leaflet_1.default.Util.setOptions(this, options);
this._map.off('move', this.throttledReset, this);
this.setThrottledReset(options);
this._map.on('move', this.throttledReset, this);
this.prepareIcons();
this.draw();
};
MassLayer.prototype.setPoints = function (points) {
this.setOptions({ points: points });
};
MassLayer.prototype.setIconUrl = function (url) {
this.setPopupAnchor(this.options.popupAnchor);
this.options.iconUrl = url;
this.prepareIcons();
this.draw();
};
MassLayer.prototype.setIconSize = function (size) {
this.options.iconSize = size;
this.draw();
};
MassLayer.prototype.getIconSize = function (point) {
var iconSize = point.iconSize || this.options.iconSize;
if (iconSize) {
return leaflet_1.default.point(iconSize);
}
var iconUrl = this.getIconUrl(point);
if (iconUrl === creator_1.defaultOptions.iconUrl) {
return leaflet_1.default.point(creator_1.defaultOptions.iconSize);
}
var icon = this.icons[iconUrl];
return leaflet_1.default.point(icon.width, icon.height);
};
MassLayer.prototype.setIconAnchor = function (anchor) {
this.options.iconAnchor = anchor;
this.draw();
};
MassLayer.prototype.getIconAnchor = function (point) {
var iconAnchor = point.iconAnchor || this.options.iconAnchor;
if (iconAnchor) {
return leaflet_1.default.point(iconAnchor);
}
if (this.getIconUrl(point) === creator_1.defaultOptions.iconUrl) {
return leaflet_1.default.point(creator_1.defaultOptions.iconAnchor);
}
return leaflet_1.default.point(0, 0);
};
MassLayer.prototype.setPopupAnchor = function (anchor) {
this.options.popupAnchor = anchor;
if (this.isPopupOpen()) {
this.getPopup()._updatePosition();
}
};
MassLayer.prototype.getPopupAnchor = function (point) {
var popupAnchor = point.popupAnchor || this.options.popupAnchor;
if (popupAnchor) {
return leaflet_1.default.point(popupAnchor);
}
if (this.getIconUrl(point) === creator_1.defaultOptions.iconUrl) {
return leaflet_1.default.point(creator_1.defaultOptions.popupAnchor);
}
return leaflet_1.default.point(0, 0);
};
MassLayer.prototype.setTooltipAnchor = function (anchor) {
this.options.tooltipAnchor = anchor;
if (this.isTooltipOpen()) {
this.getTooltip()._updatePosition();
}
};
MassLayer.prototype.getTooltipAnchor = function (point) {
var tooltipAnchor = point.tooltipAnchor || this.options.tooltipAnchor;
if (tooltipAnchor) {
return leaflet_1.default.point(tooltipAnchor);
}
if (this.getIconUrl(point) === creator_1.defaultOptions.iconUrl) {
return leaflet_1.default.point(creator_1.defaultOptions.tooltipAnchor);
}
return leaflet_1.default.point(0, 0);
};
MassLayer.prototype.getIconBox = function (point) {
var iconSize = this.getIconSize(point);
var iconAnchor = this.getIconAnchor(point);
var pixel = this._map.latLngToContainerPoint(point.position);
var top = pixel.y - iconAnchor.y;
var bottom = pixel.y + iconSize.y - iconAnchor.y;
var left = pixel.x - iconAnchor.x;
var right = pixel.x + iconSize.x - iconAnchor.x;
return { top: top, bottom: bottom, left: left, right: right };
};
MassLayer.prototype._getPopupAnchor = function () {
return this.click ? this.getPopupAnchor(this.click.point) : [0, 0];
};
MassLayer.prototype._getTooltipAnchor = function () {
return this.hover ? this.getTooltipAnchor(this.hover.point) : [0, 0];
};
MassLayer.prototype.prepareIcons = function () {
var _this = this;
var points = this.options.points;
this.iconsReady = Promise.resolve([]);
if (points && points.length) {
this.icons = {};
var urls = Array_1.distinct(points.map(this.getIconUrl));
this.iconsReady = Promise.all(urls.map(function (url) { return new Promise(function (resolve) {
var image = new Image();
image.onload = resolve;
image.src = url;
_this.icons[url] = image;
}); }));
}
};
MassLayer.prototype.draw = function () {
return __awaiter(this, void 0, void 0, function () {
var points, mapSize, points_1, points_1_1, point, _a, top_2, bottom, left, right;
var e_2, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
points = this.options.points;
return [4 /*yield*/, this.iconsReady];
case 1:
_c.sent();
this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
if (points && points.length) {
mapSize = this._map.getSize();
this.closeTooltip();
try {
for (points_1 = __values(points), points_1_1 = points_1.next(); !points_1_1.done; points_1_1 = points_1.next()) {
point = points_1_1.value;
_a = this.getIconBox(point), top_2 = _a.top, bottom = _a.bottom, left = _a.left, right = _a.right;
if (bottom <= 0 || top_2 >= mapSize.y || right <= 0 || left >= mapSize.x) {
continue;
}
this.ctx.drawImage(this.icons[this.getIconUrl(point)], left, top_2, right - left, bottom - top_2);
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (points_1_1 && !points_1_1.done && (_b = points_1.return)) _b.call(points_1);
}
finally { if (e_2) throw e_2.error; }
}
}
return [2 /*return*/];
}
});
});
};
return MassLayer;
}(leaflet_1.default.Layer));
exports.default = MassLayer;