ad62739a6e
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
80 lines
1.6 KiB
JavaScript
80 lines
1.6 KiB
JavaScript
import {inherits} from '../src/ol/index.js';
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import Map from '../src/ol/Map.js';
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import View from '../src/ol/View.js';
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import {defaults as defaultControls} from '../src/ol/control.js';
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import Control from '../src/ol/control/Control.js';
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import TileLayer from '../src/ol/layer/Tile.js';
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import OSM from '../src/ol/source/OSM.js';
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/**
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* Define a namespace for the application.
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*/
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window.app = {};
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const app = window.app;
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//
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// Define rotate to north control.
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//
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/**
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* @constructor
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* @extends {ol.control.Control}
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* @param {Object=} opt_options Control options.
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*/
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app.RotateNorthControl = function(opt_options) {
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const options = opt_options || {};
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const button = document.createElement('button');
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button.innerHTML = 'N';
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const this_ = this;
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const handleRotateNorth = function() {
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this_.getMap().getView().setRotation(0);
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};
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button.addEventListener('click', handleRotateNorth, false);
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button.addEventListener('touchstart', handleRotateNorth, false);
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const element = document.createElement('div');
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element.className = 'rotate-north ol-unselectable ol-control';
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element.appendChild(button);
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Control.call(this, {
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element: element,
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target: options.target
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});
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};
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inherits(app.RotateNorthControl, Control);
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//
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// Create map, giving it a rotate to north control.
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//
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const map = new Map({
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controls: defaultControls({
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attributionOptions: {
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collapsible: false
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}
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}).extend([
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new app.RotateNorthControl()
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]),
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layers: [
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new TileLayer({
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source: new OSM()
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})
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],
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target: 'map',
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view: new View({
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center: [0, 0],
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zoom: 3,
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rotation: 1
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})
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});
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