Files
openlayers/test/spec/ol/interaction/draw.test.js
2019-09-28 18:55:38 +02:00

1245 lines
39 KiB
JavaScript

import Feature from '../../../../src/ol/Feature.js';
import Map from '../../../../src/ol/Map.js';
import MapBrowserPointerEvent from '../../../../src/ol/MapBrowserPointerEvent.js';
import View from '../../../../src/ol/View.js';
import {equals} from '../../../../src/ol/array.js';
import {listen} from '../../../../src/ol/events.js';
import {always, shiftKeyOnly, altKeyOnly} from '../../../../src/ol/events/condition.js';
import Circle from '../../../../src/ol/geom/Circle.js';
import LineString from '../../../../src/ol/geom/LineString.js';
import MultiLineString from '../../../../src/ol/geom/MultiLineString.js';
import MultiPoint from '../../../../src/ol/geom/MultiPoint.js';
import MultiPolygon from '../../../../src/ol/geom/MultiPolygon.js';
import Point from '../../../../src/ol/geom/Point.js';
import Polygon from '../../../../src/ol/geom/Polygon.js';
import Draw, {createRegularPolygon, createBox} from '../../../../src/ol/interaction/Draw.js';
import Interaction from '../../../../src/ol/interaction/Interaction.js';
import VectorLayer from '../../../../src/ol/layer/Vector.js';
import Event from '../../../../src/ol/events/Event.js';
import VectorSource from '../../../../src/ol/source/Vector.js';
describe('ol.interaction.Draw', function() {
let target, map, source;
const width = 360;
const height = 180;
beforeEach(function(done) {
target = document.createElement('div');
const style = target.style;
style.position = 'absolute';
style.left = '-1000px';
style.top = '-1000px';
style.width = width + 'px';
style.height = height + 'px';
document.body.appendChild(target);
source = new VectorSource();
const layer = new VectorLayer({source: source});
map = new Map({
target: target,
layers: [layer],
view: new View({
projection: 'EPSG:4326',
center: [0, 0],
resolution: 1
})
});
map.once('postrender', function() {
done();
});
});
afterEach(function() {
map.dispose();
document.body.removeChild(target);
});
/**
* Simulates a browser event on the map viewport. The client x/y location
* will be adjusted as if the map were centered at 0,0.
* @param {string} type Event type.
* @param {number} x Horizontal offset from map center.
* @param {number} y Vertical offset from map center.
* @param {boolean=} opt_shiftKey Shift key is pressed.
* @return {module:ol/MapBrowserPointerEvent} The simulated event.
*/
function simulateEvent(type, x, y, opt_shiftKey) {
const viewport = map.getViewport();
// calculated in case body has top < 0 (test runner with small window)
const position = viewport.getBoundingClientRect();
const shiftKey = opt_shiftKey !== undefined ? opt_shiftKey : false;
const event = new Event();
event.type = type;
event.clientX = position.left + x + width / 2;
event.clientY = position.top + y + height / 2;
event.shiftKey = shiftKey;
event.preventDefault = function() {};
event.pointerType = 'mouse';
event.pointerId = 0;
const simulatedEvent = new MapBrowserPointerEvent(type, map, event);
map.handleMapBrowserEvent(simulatedEvent);
return simulatedEvent;
}
describe('constructor', function() {
it('creates a new interaction', function() {
const draw = new Draw({
source: source,
type: 'Point'
});
expect(draw).to.be.a(Draw);
expect(draw).to.be.a(Interaction);
});
it('accepts a freehand option', function() {
const draw = new Draw({
source: source,
type: 'LineString',
freehand: true
});
const event = new PointerEvent('pointerdown', {
clientX: 0,
clientY: 0,
shiftKey: false
});
expect(draw.freehandCondition_(event)).to.be(true);
});
it('accepts a dragVertexDelay option', function() {
const draw = new Draw({
source: source,
type: 'LineString',
dragVertexDelay: 42
});
expect(draw.dragVertexDelay_).to.be(42);
});
});
describe('specifying a geometryName', function() {
beforeEach(function() {
const draw = new Draw({
source: source,
geometryName: 'the_geom',
type: 'Point'
});
map.addInteraction(draw);
});
it('creates a feature with the correct geometryName', function() {
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
const features = source.getFeatures();
const geometry = features[0].getGeometry();
expect(features[0].getGeometryName()).to.equal('the_geom');
expect(geometry).to.be.a(Point);
});
});
describe('specifying a clickTolerance', function() {
beforeEach(function() {
const draw = new Draw({
source: source,
type: 'Point',
clickTolerance: 6
});
map.addInteraction(draw);
});
it('adds a point when below the tolerance', function() {
let features;
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 15, 25);
features = source.getFeatures();
expect(features).to.length(0);
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 14, 24);
features = source.getFeatures();
expect(features).to.length(1);
});
});
describe('drawing points', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'Point'
});
map.addInteraction(draw);
});
it('draws a point on click', function() {
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Point);
expect(geometry.getCoordinates()).to.eql([10, -20]);
});
it('does not draw a point with a significant drag', function() {
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointermove', 18, 20);
simulateEvent('pointerup', 18, 20);
const features = source.getFeatures();
expect(features).to.have.length(0);
});
it('does not draw a point when modifier key is pressed', function() {
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20, true);
simulateEvent('pointerup', 10, 20);
const features = source.getFeatures();
expect(features).to.have.length(0);
});
it('triggers draw events', function() {
const ds = sinon.spy();
const de = sinon.spy();
listen(draw, 'drawstart', ds);
listen(draw, 'drawend', de);
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(ds.called).to.be(true);
expect(de.called).to.be(true);
simulateEvent('pointermove', 20, 20);
expect(ds.callCount).to.be(1);
expect(de.callCount).to.be(1);
});
it('triggers drawend event before inserting the feature', function() {
const receivedEvents = {
end: 0,
addfeature: 0
};
listen(draw, 'drawend',
function() {
expect(receivedEvents.end).to.be(0);
expect(receivedEvents.addfeature).to.be(0);
++receivedEvents.end;
});
source.on('addfeature', function() {
expect(receivedEvents.end).to.be(1);
expect(receivedEvents.addfeature).to.be(0);
receivedEvents.addfeature++;
});
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
simulateEvent('pointermove', 20, 20);
expect(receivedEvents.end).to.be(1);
expect(receivedEvents.addfeature).to.be(1);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing multipoints', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'MultiPoint'
});
map.addInteraction(draw);
});
it('draws multipoint on click', function() {
simulateEvent('pointermove', 30, 15);
simulateEvent('pointerdown', 30, 15);
simulateEvent('pointerup', 30, 15);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(MultiPoint);
expect(geometry.getCoordinates()).to.eql([[30, -15]]);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing linestrings', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'LineString'
});
map.addInteraction(draw);
});
it('draws linestring with clicks, finishing on last point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on second point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [30, -20]]);
});
it('supports removeLastPoint while drawing', function() {
draw.removeLastPoint();
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 40, 30);
simulateEvent('pointerdown', 40, 30);
simulateEvent('pointerup', 40, 30);
simulateEvent('pointermove', 100, 100);
draw.removeLastPoint();
// click near the removed point
simulateEvent('pointermove', 39, 31);
simulateEvent('pointerdown', 38, 31);
simulateEvent('pointerup', 38, 31);
expect(source.getFeatures()).to.have.length(0);
});
it('supports freehand drawing for linestrings', function() {
// freehand sequence
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20, true);
simulateEvent('pointermove', 20, 30, true);
simulateEvent('pointerdrag', 20, 30, true);
simulateEvent('pointermove', 20, 40, true);
simulateEvent('pointerdrag', 20, 40, true);
simulateEvent('pointerup', 20, 40, true);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql(
[[10, -20], [20, -30], [20, -40]]);
});
it('allows freehand mode for part of the drawing', function() {
// non-freehand
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
simulateEvent('pointermove', 20, 30);
// freehand
simulateEvent('pointermove', 20, 30, true);
simulateEvent('pointerdrag', 20, 30, true);
simulateEvent('pointermove', 30, 40, true);
simulateEvent('pointerdrag', 30, 40, true);
simulateEvent('pointermove', 40, 50, true);
simulateEvent('pointerdrag', 40, 50, true);
// non-freehand
simulateEvent('pointerup', 40, 50);
simulateEvent('pointermove', 50, 60);
simulateEvent('pointerdown', 50, 60);
simulateEvent('pointerup', 50, 60);
simulateEvent('pointermove', 60, 70);
simulateEvent('pointerdown', 60, 70);
simulateEvent('pointerup', 60, 70);
// finish
simulateEvent('pointerdown', 60, 70);
simulateEvent('pointerup', 60, 70);
const features = source.getFeatures();
// expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql(
[[10, -20], [20, -30], [30, -40], [40, -50], [50, -60], [60, -70]]);
});
it('does not add a point with a significant drag', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// drag map
simulateEvent('pointermove', 15, 20);
simulateEvent('pointerdown', 15, 20);
simulateEvent('pointermove', 23, 20);
simulateEvent('pointerup', 23, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on second point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [30, -20]]);
});
it('allows dragging of the vertex after dragVertexDelay', function(done) {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point, drag vertex
simulateEvent('pointermove', 15, 20);
simulateEvent('pointerdown', 15, 20);
setTimeout(function() {
simulateEvent('pointermove', 20, 10);
simulateEvent('pointerdrag', 20, 10);
simulateEvent('pointerup', 20, 10);
// third point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on third point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [20, -10], [30, -20]]);
done();
}, 600);
});
it('triggers draw events', function() {
const ds = sinon.spy();
const de = sinon.spy();
listen(draw, 'drawstart', ds);
listen(draw, 'drawend', de);
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on second point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
simulateEvent('pointermove', 10, 20);
expect(ds.called).to.be(true);
expect(ds.callCount).to.be(1);
expect(de.called).to.be(true);
expect(de.callCount).to.be(1);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing with a condition', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'LineString',
condition: shiftKeyOnly,
freehandCondition: altKeyOnly
});
map.addInteraction(draw);
});
it('finishes draw sequence correctly', function() {
// first point
simulateEvent('pointermove', 10, 20, true);
simulateEvent('pointerdown', 10, 20, true);
simulateEvent('pointerup', 10, 20, true);
// second point
simulateEvent('pointermove', 30, 20, true);
simulateEvent('pointerdown', 30, 20, true);
simulateEvent('pointerup', 30, 20, true);
// finish on second point
simulateEvent('pointerdown', 30, 20, true);
simulateEvent('pointerup', 30, 20, true);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [30, -20]]);
// without modifier, to be handled by the map's DragPan interaction
simulateEvent('pointermove', 20, 20);
simulateEvent('pointerdown', 20, 20);
simulateEvent('pointermove', 10, 30);
expect(draw.lastDragTime_).to.be(undefined);
});
});
describe('drawing with a finishCondition', function() {
beforeEach(function() {
const draw = new Draw({
source: source,
type: 'LineString',
finishCondition: function(event) {
if (equals(event.coordinate, [30, -20])) {
return true;
}
return false;
}
});
map.addInteraction(draw);
});
it('draws a linestring failing to finish it first, the finishes it', function() {
let features;
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 40, 30);
simulateEvent('pointerdown', 40, 30);
simulateEvent('pointerup', 40, 30);
// try to finish on this point
simulateEvent('pointerdown', 40, 30);
simulateEvent('pointerup', 40, 30);
features = source.getFeatures();
expect(features).to.have.length(0);
// third point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on this point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
features = source.getFeatures();
expect(features).to.have.length(1);
});
});
describe('drawing multi-linestrings', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'MultiLineString'
});
map.addInteraction(draw);
});
it('draws multi with clicks, finishing on last point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// finish on second point
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(MultiLineString);
expect(geometry.getCoordinates()).to.eql([[[10, -20], [30, -20]]]);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing polygons', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'Polygon'
});
map.addInteraction(draw);
});
function isClosed(polygon) {
const first = polygon.getFirstCoordinate();
const last = polygon.getLastCoordinate();
expect(first).to.eql(last);
}
it('draws polygon with clicks, finishing on first point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
isClosed(draw.sketchFeature_.getGeometry());
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
isClosed(draw.sketchFeature_.getGeometry());
// third point
simulateEvent('pointermove', 40, 10);
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
isClosed(draw.sketchFeature_.getGeometry());
// finish on first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Polygon);
expect(geometry.getCoordinates()).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('supports removeLastPoint while drawing', function() {
draw.removeLastPoint();
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 40, 30);
simulateEvent('pointerdown', 40, 30);
simulateEvent('pointerup', 40, 30);
simulateEvent('pointermove', 100, 100);
draw.removeLastPoint();
// click near the removed point
simulateEvent('pointermove', 39, 31);
simulateEvent('pointerdown', 39, 31);
simulateEvent('pointerup', 39, 31);
expect(source.getFeatures()).to.have.length(0);
});
it('will tolerate removeLastPoint being called when no coordinates', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 40, 30);
simulateEvent('pointerdown', 40, 30);
simulateEvent('pointerup', 40, 30);
simulateEvent('pointermove', 100, 100);
expect(function() {
draw.removeLastPoint();
draw.removeLastPoint();
draw.removeLastPoint();
}).to.not.throwException();
});
it('draws polygon with clicks, finishing on last point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// third point
simulateEvent('pointermove', 40, 10);
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
// finish on last point
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Polygon);
expect(geometry.getCoordinates()).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('supports freehand drawing for polygons', function() {
// freehand sequence
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20, true);
simulateEvent('pointermove', 30, 20, true);
simulateEvent('pointerdrag', 30, 20, true);
simulateEvent('pointermove', 40, 10, true);
simulateEvent('pointerdrag', 40, 10, true);
simulateEvent('pointerup', 40, 10, true);
// finish on last point
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Polygon);
expect(geometry.getCoordinates()).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('triggers draw events', function() {
const ds = sinon.spy();
const de = sinon.spy();
listen(draw, 'drawstart', ds);
listen(draw, 'drawend', de);
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// third point
simulateEvent('pointermove', 30, 10);
simulateEvent('pointerdown', 30, 10);
simulateEvent('pointerup', 30, 10);
// finish on first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(ds.called).to.be(true);
expect(ds.callCount).to.be(1);
expect(de.called).to.be(true);
expect(de.callCount).to.be(1);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing multi-polygons', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'MultiPolygon'
});
map.addInteraction(draw);
});
it('draws multi with clicks, finishing on first point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// third point
simulateEvent('pointermove', 40, 10);
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
// finish on first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(MultiPolygon);
const coordinates = geometry.getCoordinates();
expect(coordinates).to.have.length(1);
expect(coordinates[0]).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('draws multi with clicks, finishing on last point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
// third point
simulateEvent('pointermove', 40, 10);
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
// finish on last point
simulateEvent('pointerdown', 40, 10);
simulateEvent('pointerup', 40, 10);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(MultiPolygon);
const coordinates = geometry.getCoordinates();
expect(coordinates).to.have.length(1);
expect(coordinates[0]).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('drawing circles', function() {
let draw;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'Circle'
});
map.addInteraction(draw);
});
it('draws circle with clicks, finishing on second point', function() {
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// finish on second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
const features = source.getFeatures();
expect(features).to.have.length(1);
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Circle);
expect(geometry.getCenter()).to.eql([10, -20]);
expect(geometry.getRadius()).to.eql(20);
});
it('supports freehand drawing for circles', function() {
draw.freehand_ = true;
draw.freehandCondition_ = always;
// no feature created when not moved
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(source.getFeatures()).to.have.length(0);
// feature created when moved
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerup', 30, 20);
expect(source.getFeatures()).to.have.length(1);
});
it('triggers draw events', function() {
const ds = sinon.spy();
const de = sinon.spy();
listen(draw, 'drawstart', ds);
listen(draw, 'drawend', de);
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
// finish on second point
simulateEvent('pointermove', 30, 20);
simulateEvent('pointerdown', 30, 20);
simulateEvent('pointerup', 30, 20);
expect(ds.called).to.be(true);
expect(ds.callCount).to.be(1);
expect(de.called).to.be(true);
expect(de.callCount).to.be(1);
});
it('works if finishDrawing is called when the sketch feature is not defined', function() {
expect(function() {
draw.finishDrawing();
}).to.not.throwException();
});
});
describe('#setActive()', function() {
let interaction;
beforeEach(function() {
interaction = new Draw({
type: 'LineString'
});
expect(interaction.getActive()).to.be(true);
map.addInteraction(interaction);
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(interaction.sketchFeature_).not.to.be(null);
});
afterEach(function() {
map.removeInteraction(interaction);
});
describe('#setActive(false)', function() {
it('unsets the map from the feature overlay', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setActive(false);
expect(spy.getCall(0).args[0]).to.be(null);
});
it('aborts the drawing', function() {
interaction.setActive(false);
expect(interaction.sketchFeature_).to.be(null);
});
it('fires change:active', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
const listenerSpy = sinon.spy(function() {
// test that the interaction's change:active listener is called first
expect(spy.getCall(0).args[0]).to.be(null);
});
interaction.on('change:active', listenerSpy);
interaction.setActive(false);
expect(listenerSpy.callCount).to.be(1);
});
});
describe('#setActive(true)', function() {
beforeEach(function() {
interaction.setActive(false);
});
it('sets the map into the feature overlay', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setActive(true);
expect(spy.getCall(0).args[0]).to.be(map);
});
it('fires change:active', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
const listenerSpy = sinon.spy(function() {
// test that the interaction's change:active listener is called first
expect(spy.getCall(0).args[0]).to.be(map);
});
interaction.on('change:active', listenerSpy);
interaction.setActive(true);
expect(listenerSpy.callCount).to.be(1);
});
});
});
describe('#setMap()', function() {
let interaction;
beforeEach(function() {
interaction = new Draw({
type: 'LineString'
});
expect(interaction.getActive()).to.be(true);
});
describe('#setMap(null)', function() {
beforeEach(function() {
map.addInteraction(interaction);
// first point
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(interaction.sketchFeature_).not.to.be(null);
});
afterEach(function() {
map.removeInteraction(interaction);
});
describe('#setMap(null) when interaction is active', function() {
it('unsets the map from the feature overlay', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setMap(null);
expect(spy.getCall(0).args[0]).to.be(null);
});
it('aborts the drawing', function() {
interaction.setMap(null);
expect(interaction.sketchFeature_).to.be(null);
});
});
});
describe('#setMap(map)', function() {
describe('#setMap(map) when interaction is active', function() {
it('sets the map into the feature overlay', function() {
const spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setMap(map);
expect(spy.getCall(0).args[0]).to.be(map);
});
});
describe('#setMap(map) when interaction is not active', function() {
it('does not set the map into the feature overlay', function() {
interaction.setActive(false);
const spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setMap(map);
expect(spy.getCall(0).args[0]).to.be(null);
});
});
});
});
describe('#getOverlay', function() {
it('returns the feature overlay layer', function() {
const draw = new Draw({});
expect (draw.getOverlay()).to.eql(draw.overlay_);
});
});
describe('createRegularPolygon', function() {
it('creates a regular polygon in Circle mode', function() {
const draw = new Draw({
source: source,
type: 'Circle',
geometryFunction: createRegularPolygon(4, Math.PI / 4)
});
map.addInteraction(draw);
// first point
simulateEvent('pointermove', 0, 0);
simulateEvent('pointerdown', 0, 0);
simulateEvent('pointerup', 0, 0);
// finish on second point
simulateEvent('pointermove', 20, 20);
simulateEvent('pointerdown', 20, 20);
simulateEvent('pointerup', 20, 20);
const features = source.getFeatures();
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Polygon);
const coordinates = geometry.getCoordinates();
expect(coordinates[0].length).to.eql(5);
expect(coordinates[0][0][0]).to.roughlyEqual(20, 1e-9);
expect(coordinates[0][0][1]).to.roughlyEqual(20, 1e-9);
});
it('sketch start point always matches the mouse point', function() {
const draw = new Draw({
source: source,
type: 'Circle',
geometryFunction: createRegularPolygon(3)
});
map.addInteraction(draw);
// regular polygon center point
simulateEvent('pointermove', 60, 60);
simulateEvent('pointerdown', 60, 60);
simulateEvent('pointerup', 60, 60);
// move to first quadrant
simulateEvent('pointermove', 79, 80);
let event = simulateEvent('pointermove', 80, 80);
let coordinate = event.coordinate;
const firstQuadrantCoordinate = draw.sketchFeature_.getGeometry().getFirstCoordinate();
expect(firstQuadrantCoordinate[0]).to.roughlyEqual(coordinate[0], 1e-9);
expect(firstQuadrantCoordinate[1]).to.roughlyEqual(coordinate[1], 1e-9);
// move to second quadrant
simulateEvent('pointermove', 41, 80);
event = simulateEvent('pointermove', 40, 80);
coordinate = event.coordinate;
const secondQuadrantCoordinate = draw.sketchFeature_.getGeometry().getFirstCoordinate();
expect(secondQuadrantCoordinate[0]).to.roughlyEqual(coordinate[0], 1e-9);
expect(secondQuadrantCoordinate[1]).to.roughlyEqual(coordinate[1], 1e-9);
// move to third quadrant
simulateEvent('pointermove', 40, 41);
event = simulateEvent('pointermove', 40, 40);
coordinate = event.coordinate;
const thirdQuadrantCoordinate = draw.sketchFeature_.getGeometry().getFirstCoordinate();
expect(thirdQuadrantCoordinate[0]).to.roughlyEqual(coordinate[0], 1e-9);
expect(thirdQuadrantCoordinate[1]).to.roughlyEqual(coordinate[1], 1e-9);
// move to fourth quadrant
simulateEvent('pointermove', 79, 40);
event = simulateEvent('pointermove', 80, 40);
coordinate = event.coordinate;
const fourthQuadrantCoordinate = draw.sketchFeature_.getGeometry().getFirstCoordinate();
expect(fourthQuadrantCoordinate[0]).to.roughlyEqual(coordinate[0], 1e-9);
expect(fourthQuadrantCoordinate[1]).to.roughlyEqual(coordinate[1], 1e-9);
});
});
describe('createBox', function() {
it('creates a box-shaped polygon in Circle mode', function() {
const draw = new Draw({
source: source,
type: 'Circle',
geometryFunction: createBox()
});
map.addInteraction(draw);
// first point
simulateEvent('pointermove', 0, 0);
simulateEvent('pointerdown', 0, 0);
simulateEvent('pointerup', 0, 0);
// finish on second point
simulateEvent('pointermove', 20, 20);
simulateEvent('pointerdown', 20, 20);
simulateEvent('pointerup', 20, 20);
const features = source.getFeatures();
const geometry = features[0].getGeometry();
expect(geometry).to.be.a(Polygon);
const coordinates = geometry.getCoordinates();
expect(coordinates[0]).to.have.length(5);
expect(geometry.getArea()).to.equal(400);
expect(geometry.getExtent()).to.eql([0, -20, 20, 0]);
});
});
describe('extend an existing feature', function() {
let draw;
let feature;
beforeEach(function() {
draw = new Draw({
source: source,
type: 'LineString'
});
map.addInteraction(draw);
feature = new Feature(
new LineString([[0, 0], [1, 1], [2, 0]]));
});
it('sets the initial state', function() {
draw.extend(feature);
expect(draw.sketchCoords_).to.have.length(4);
expect(draw.sketchCoords_).to.eql([[0, 0], [1, 1], [2, 0], [2, 0]]);
expect(draw.finishCoordinate_).to.eql([2, 0]);
});
it('dispatches a drawstart event', function() {
const spy = sinon.spy();
listen(draw, 'drawstart', spy);
draw.extend(feature);
expect(spy.callCount).to.be(1);
});
});
});