117 lines
3.2 KiB
JavaScript
117 lines
3.2 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 {getCenter} from '../../../../src/ol/extent.js';
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import {fromExtent as polygonFromExtent} from '../../../../src/ol/geom/Polygon.js';
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import DragZoom from '../../../../src/ol/interaction/DragZoom.js';
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import VectorLayer from '../../../../src/ol/layer/Vector.js';
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import RenderBox from '../../../../src/ol/render/Box.js';
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import VectorSource from '../../../../src/ol/source/Vector.js';
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describe('ol.interaction.DragZoom', function() {
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let target, map, source;
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const width = 360;
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const height = 180;
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beforeEach(function(done) {
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target = document.createElement('div');
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const style = target.style;
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style.position = 'absolute';
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style.left = '-1000px';
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style.top = '-1000px';
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style.width = width + 'px';
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style.height = height + 'px';
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document.body.appendChild(target);
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source = new VectorSource();
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const layer = new VectorLayer({source: source});
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map = new Map({
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target: target,
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layers: [layer],
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view: new View({
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projection: 'EPSG:4326',
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center: [0, 0],
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resolution: 1
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})
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});
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map.once('postrender', function() {
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done();
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});
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});
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afterEach(function() {
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map.dispose();
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document.body.removeChild(target);
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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 instance = new DragZoom();
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expect(instance).to.be.an(DragZoom);
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});
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it('sets "ol-dragzoom" as box className', function() {
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const instance = new DragZoom();
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expect(instance.box_.element_.className).to.be('ol-box ol-dragzoom');
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});
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it('sets a custom box className', function() {
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const instance = new DragZoom({className: 'test-dragzoom'});
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expect(instance.box_.element_.className).to.be('ol-box test-dragzoom');
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});
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});
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describe('#onBoxEnd()', function() {
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it('centers the view on the box geometry', function(done) {
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const interaction = new DragZoom({
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duration: 10
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});
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map.addInteraction(interaction);
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const box = new RenderBox();
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const extent = [-110, 40, -90, 60];
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box.geometry_ = polygonFromExtent(extent);
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interaction.box_ = box;
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interaction.onBoxEnd_();
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setTimeout(function() {
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const view = map.getView();
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const center = view.getCenter();
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expect(center).to.eql(getCenter(extent));
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done();
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}, 50);
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});
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it('sets new resolution while zooming out', function(done) {
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const interaction = new DragZoom({
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duration: 10,
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out: true
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});
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map.addInteraction(interaction);
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const box = new RenderBox();
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const extent = [-11.25, -11.25, 11.25, 11.25];
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box.geometry_ = polygonFromExtent(extent);
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interaction.box_ = box;
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map.getView().setResolution(0.25);
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setTimeout(function() {
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interaction.onBoxEnd_();
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setTimeout(function() {
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const view = map.getView();
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const resolution = view.getResolution();
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expect(resolution).to.eql(view.getConstrainedResolution(0.5));
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done();
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}, 50);
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}, 50);
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});
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});
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});
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