556 lines
16 KiB
JavaScript
556 lines
16 KiB
JavaScript
import Map from '../../../../src/ol/Map.js';
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import View from '../../../../src/ol/View.js';
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import ScaleLine, {render} from '../../../../src/ol/control/ScaleLine.js';
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import {fromLonLat, clearAllProjections, addCommon} from '../../../../src/ol/proj.js';
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import Projection from '../../../../src/ol/proj/Projection.js';
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import proj4 from 'proj4';
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import {register} from '../../../../src/ol/proj/proj4.js';
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describe('ol.control.ScaleLine', function() {
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let map;
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beforeEach(function() {
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const target = document.createElement('div');
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target.style.height = '256px';
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document.body.appendChild(target);
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map = new Map({
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target: target
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});
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});
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afterEach(function() {
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disposeMap(map);
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map = null;
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});
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describe('constructor', function() {
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it('can be constructed without arguments', function() {
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const ctrl = new ScaleLine();
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expect(ctrl).to.be.an(ScaleLine);
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});
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});
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describe('configuration options', function() {
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describe('className', function() {
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it('defaults to "ol-scale-line"', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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const element = document.querySelector('.ol-scale-line', map.getTarget());
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expect(element).to.not.be(null);
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expect(element).to.be.a(HTMLDivElement);
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});
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it('can be configured', function() {
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const ctrl = new ScaleLine({
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className: 'humpty-dumpty'
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});
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ctrl.setMap(map);
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// check that the default was not chosen
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const element1 = document.querySelector('.ol-scale-line', map.getTarget());
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expect(element1).to.be(null);
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// check if the configured classname was chosen
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const element2 = document.querySelector('.humpty-dumpty', map.getTarget());
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expect(element2).to.not.be(null);
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expect(element2).to.be.a(HTMLDivElement);
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});
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});
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describe('minWidth', function() {
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it('defaults to 64', function() {
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const ctrl = new ScaleLine();
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expect(ctrl.minWidth_).to.be(64);
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});
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it('can be configured', function() {
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const ctrl = new ScaleLine({
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minWidth: 4711
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});
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expect(ctrl.minWidth_).to.be(4711);
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});
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});
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describe('render', function() {
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it('defaults to `ol.control.ScaleLine.render`', function() {
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const ctrl = new ScaleLine();
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expect(ctrl.render).to.be(render);
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});
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it('can be configured', function() {
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const myRender = function() {};
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const ctrl = new ScaleLine({
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render: myRender
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});
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expect(ctrl.render).to.be(myRender);
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});
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});
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});
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describe('synchronisation with map view', function() {
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it('calls `render` as soon as the map is rendered', function(done) {
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const renderSpy = sinon.spy();
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const ctrl = new ScaleLine({
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render: renderSpy
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});
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expect(renderSpy.called).to.be(false);
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ctrl.setMap(map);
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expect(renderSpy.called).to.be(false);
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map.setView(new View({
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center: [0, 0],
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zoom: 0
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}));
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expect(renderSpy.called).to.be(false);
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map.once('postrender', function() {
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expect(renderSpy.called).to.be(true);
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expect(renderSpy.callCount).to.be(1);
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done();
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});
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});
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it('calls `render` as often as the map is rendered', function() {
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const renderSpy = sinon.spy();
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const ctrl = new ScaleLine({
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render: renderSpy
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});
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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zoom: 0
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}));
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map.renderSync();
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expect(renderSpy.callCount).to.be(1);
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map.renderSync();
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expect(renderSpy.callCount).to.be(2);
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map.renderSync();
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expect(renderSpy.callCount).to.be(3);
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});
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it('calls `render` as when the view changes', function(done) {
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const renderSpy = sinon.spy();
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const ctrl = new ScaleLine({
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render: renderSpy
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});
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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zoom: 0
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}));
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map.renderSync();
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map.once('postrender', function() {
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expect(renderSpy.callCount).to.be(2);
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done();
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});
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map.getView().setCenter([1, 1]);
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});
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});
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describe('static method `render`', function() {
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it('updates the rendered text', function() {
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const ctrl = new ScaleLine();
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expect(ctrl.element.innerText).to.be('');
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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multiWorld: true,
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zoom: 0
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('10000 km');
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});
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});
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describe('#getUnits', function() {
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it('returns "metric" by default', function() {
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const ctrl = new ScaleLine();
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expect(ctrl.getUnits()).to.be('metric');
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});
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it('returns what is configured via `units` property', function() {
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const ctrl = new ScaleLine({
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units: 'nautical'
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});
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expect(ctrl.getUnits()).to.be('nautical');
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});
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it('returns what is configured `setUnits` method', function() {
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const ctrl = new ScaleLine();
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ctrl.setUnits('nautical');
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expect(ctrl.getUnits()).to.be('nautical');
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});
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});
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describe('#setUnits', function() {
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it('triggers rerendering', function() {
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const ctrl = new ScaleLine();
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map.setView(new View({
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center: [0, 0],
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multiWorld: true,
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zoom: 0
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}));
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ctrl.setMap(map);
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map.renderSync();
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expect(ctrl.element.innerText).to.be('10000 km');
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ctrl.setUnits('nautical');
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map.renderSync();
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expect(ctrl.element.innerText).to.be('10000 nm');
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});
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});
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describe('different units result in different contents', function() {
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let ctrl;
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let metricHtml;
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let nauticalHtml;
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let degreesHtml;
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let imperialHtml;
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let usHtml;
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beforeEach(function(done) {
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ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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zoom: 0
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}));
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map.once('postrender', function() {
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metricHtml = ctrl.element.innerHTML;
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done();
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});
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});
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afterEach(function() {
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map.setView(null);
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map.removeControl(ctrl);
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});
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it('renders a scaleline for "metric"', function() {
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expect(metricHtml).to.not.be(undefined);
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});
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it('renders a different scaleline for "nautical"', function() {
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ctrl.setUnits('nautical');
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nauticalHtml = ctrl.element.innerHTML;
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expect(nauticalHtml).to.not.be(metricHtml);
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});
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it('renders a different scaleline for "degrees"', function() {
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ctrl.setUnits('degrees');
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degreesHtml = ctrl.element.innerHTML;
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expect(degreesHtml).to.not.be(metricHtml);
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expect(degreesHtml).to.not.be(nauticalHtml);
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});
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it('renders a different scaleline for "imperial"', function() {
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ctrl.setUnits('imperial');
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imperialHtml = ctrl.element.innerHTML;
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expect(imperialHtml).to.not.be(metricHtml);
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expect(imperialHtml).to.not.be(nauticalHtml);
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expect(imperialHtml).to.not.be(degreesHtml);
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});
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it('renders a different scaleline for "us"', function() {
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ctrl.setUnits('us');
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usHtml = ctrl.element.innerHTML;
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expect(usHtml).to.not.be(metricHtml);
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expect(usHtml).to.not.be(nauticalHtml);
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expect(usHtml).to.not.be(degreesHtml);
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// it's hard to actually find a difference in rendering between
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// usHtml and imperialHtml
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});
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});
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describe('projections affect the scaleline', function() {
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beforeEach(function() {
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proj4.defs('Indiana-East', 'PROJCS["IN83-EF",GEOGCS["LL83",DATUM["NAD83",' +
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'SPHEROID["GRS1980",6378137.000,298.25722210]],PRIMEM["Greenwich",0],' +
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'UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],' +
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'PARAMETER["false_easting",328083.333],' +
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'PARAMETER["false_northing",820208.333],' +
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'PARAMETER["scale_factor",0.999966666667],' +
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'PARAMETER["central_meridian",-85.66666666666670],' +
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'PARAMETER["latitude_of_origin",37.50000000000000],' +
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'UNIT["Foot_US",0.30480060960122]]');
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register(proj4);
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});
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afterEach(function() {
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clearAllProjections();
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addCommon();
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});
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it('is rendered differently for different projections', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: fromLonLat([7, 52]),
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zoom: 2,
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projection: 'EPSG:3857'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('2000 km');
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map.setView(new View({
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center: [7, 52],
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multiWorld: true,
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zoom: 2,
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projection: 'EPSG:4326'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('5000 km');
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map.setView(new View({
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center: fromLonLat([-85.685, 39.891], 'Indiana-East'),
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zoom: 7,
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projection: 'Indiana-East'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('100 km');
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});
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it('shows the same scale for different projections at higher resolutions', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: fromLonLat([-85.685, 39.891]),
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zoom: 7,
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projection: 'EPSG:3857'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('100 km');
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map.setView(new View({
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center: [-85.685, 39.891],
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zoom: 7,
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projection: 'EPSG:4326'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('100 km');
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map.setView(new View({
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center: fromLonLat([-85.685, 39.891], 'Indiana-East'),
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zoom: 7,
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projection: 'Indiana-East'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('100 km');
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});
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it('Projection\'s metersPerUnit affect scale for non-degree units', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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zoom: 0,
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resolutions: [1],
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projection: new Projection({
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code: 'METERS',
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units: 'm',
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getPointResolution: function(r) {
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return r;
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}
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})
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}));
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map.renderSync();
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ctrl.setUnits('metric');
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expect(ctrl.element.innerText).to.be('100 m');
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ctrl.setUnits('imperial');
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expect(ctrl.element.innerText).to.be('500 ft');
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ctrl.setUnits('nautical');
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expect(ctrl.element.innerText).to.be('0.05 nm');
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ctrl.setUnits('us');
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expect(ctrl.element.innerText).to.be('500 ft');
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map.setView(new View({
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center: [0, 0],
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zoom: 0,
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resolutions: [1],
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projection: new Projection({
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code: 'PIXELS',
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units: 'pixels',
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metersPerUnit: 1 / 1000,
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getPointResolution: function(r) {
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return r;
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}
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})
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}));
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map.renderSync();
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ctrl.setUnits('metric');
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expect(ctrl.element.innerText).to.be('100 mm');
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ctrl.setUnits('imperial');
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expect(ctrl.element.innerText).to.be('5 in');
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ctrl.setUnits('nautical');
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expect(ctrl.element.innerText).to.be('0.00005 nm');
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ctrl.setUnits('us');
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expect(ctrl.element.innerText).to.be('5 in');
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});
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it('Metric display works with Geographic (EPSG:4326) projection', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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multiWorld: true,
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zoom: 0, /* min zoom */
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projection: 'EPSG:4326'
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}));
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map.renderSync();
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expect(ctrl.element.innerText).to.be('10000 km');
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map.getView().setZoom(28); /* max zoom */
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map.renderSync();
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expect(ctrl.element.innerText).to.be('50 mm');
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});
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});
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describe('latitude may affect scale line in EPSG:4326', function() {
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it('is rendered differently at different latitudes for metric', function() {
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const ctrl = new ScaleLine();
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ctrl.setMap(map);
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map.setView(new View({
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center: [7, 0],
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zoom: 2,
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projection: 'EPSG:4326'
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}));
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map.renderSync();
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const innerHtml0 = ctrl.element.innerHTML;
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map.getView().setCenter([7, 52]);
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map.renderSync();
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const innerHtml52 = ctrl.element.innerHTML;
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expect(innerHtml0).to.not.be(innerHtml52);
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});
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it('is rendered the same at different latitudes for degrees', function() {
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const ctrl = new ScaleLine({
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units: 'degrees'
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});
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ctrl.setMap(map);
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map.setView(new View({
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center: [7, 0],
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zoom: 2,
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projection: 'EPSG:4326',
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multiWorld: true
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}));
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map.renderSync();
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const innerHtml0 = ctrl.element.innerHTML;
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map.getView().setCenter([7, 52]);
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map.renderSync();
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const innerHtml52 = ctrl.element.innerHTML;
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expect(innerHtml0).to.be(innerHtml52);
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});
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});
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describe('zoom affects the scaleline', function() {
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let currentZoom;
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let ctrl;
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let renderedHtmls;
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let mapView;
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const getMetricUnit = function(zoom) {
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if (zoom > 30) {
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return 'μm';
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} else if (zoom > 20) {
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return 'mm';
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} else if (zoom > 10) {
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return 'm';
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} else {
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return 'km';
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}
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};
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const getImperialUnit = function(zoom) {
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if (zoom >= 21) {
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return 'in';
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} else if (zoom >= 10) {
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return 'ft';
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} else {
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return 'mi';
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}
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};
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beforeEach(function() {
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currentZoom = 33;
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renderedHtmls = {};
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ctrl = new ScaleLine({
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minWidth: 10
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});
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ctrl.setMap(map);
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map.setView(new View({
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center: [0, 0],
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zoom: currentZoom,
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maxZoom: currentZoom,
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multiWorld: true
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}));
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mapView = map.getView();
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map.renderSync();
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});
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afterEach(function() {
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map.removeControl(ctrl);
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map.setView(null);
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});
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it('metric: is rendered differently for different zoomlevels', function() {
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ctrl.setUnits('metric');
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map.renderSync();
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renderedHtmls[ctrl.element.innerHTML] = true;
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while (--currentZoom >= 0) {
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mapView.setZoom(currentZoom);
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map.renderSync();
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const currentHtml = ctrl.element.innerHTML;
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expect(currentHtml in renderedHtmls).to.be(false);
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renderedHtmls[currentHtml] = true;
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const unit = ctrl.innerElement_.textContent.match(/\d+ (.+)/)[1];
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expect(unit).to.eql(getMetricUnit(currentZoom));
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}
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});
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it('degrees: is rendered differently for different zoomlevels', function() {
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ctrl.setUnits('degrees');
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map.renderSync();
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renderedHtmls[ctrl.element.innerHTML] = true;
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while (--currentZoom >= 0) {
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mapView.setZoom(currentZoom);
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map.renderSync();
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const currentHtml = ctrl.element.innerHTML;
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expect(currentHtml in renderedHtmls).to.be(false);
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renderedHtmls[currentHtml] = true;
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}
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});
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it('imperial: is rendered differently for different zoomlevels', function() {
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ctrl.setUnits('imperial');
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map.renderSync();
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renderedHtmls[ctrl.element.innerHTML] = true;
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while (--currentZoom >= 0) {
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mapView.setZoom(currentZoom);
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map.renderSync();
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const currentHtml = ctrl.element.innerHTML;
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expect(currentHtml in renderedHtmls).to.be(false);
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renderedHtmls[currentHtml] = true;
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const unit = ctrl.innerElement_.textContent.match(/\d+ (.+)/)[1];
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expect(unit).to.eql(getImperialUnit(currentZoom));
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}
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});
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it('nautical: is rendered differently for different zoomlevels', function() {
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ctrl.setUnits('nautical');
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map.renderSync();
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renderedHtmls[ctrl.element.innerHTML] = true;
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while (--currentZoom >= 0) {
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mapView.setZoom(currentZoom);
|
|
map.renderSync();
|
|
const currentHtml = ctrl.element.innerHTML;
|
|
expect(currentHtml in renderedHtmls).to.be(false);
|
|
renderedHtmls[currentHtml] = true;
|
|
}
|
|
});
|
|
it('us: is rendered differently for different zoomlevels', function() {
|
|
ctrl.setUnits('us');
|
|
map.renderSync();
|
|
renderedHtmls[ctrl.element.innerHTML] = true;
|
|
while (--currentZoom >= 0) {
|
|
mapView.setZoom(currentZoom);
|
|
map.renderSync();
|
|
const currentHtml = ctrl.element.innerHTML;
|
|
expect(currentHtml in renderedHtmls).to.be(false);
|
|
renderedHtmls[currentHtml] = true;
|
|
}
|
|
});
|
|
});
|
|
|
|
});
|