openlayers
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Build tools and sources for developing OpenLayers based mapping applications
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JavaScript
goog.provide('ol.test.interaction.Draw');
goog.require('ol.array');
goog.require('ol.events');
goog.require('ol.Feature');
goog.require('ol.Map');
goog.require('ol.MapBrowserPointerEvent');
goog.require('ol.View');
goog.require('ol.geom.Circle');
goog.require('ol.geom.LineString');
goog.require('ol.geom.MultiLineString');
goog.require('ol.geom.MultiPoint');
goog.require('ol.geom.MultiPolygon');
goog.require('ol.geom.Point');
goog.require('ol.geom.Polygon');
goog.require('ol.interaction.Draw');
goog.require('ol.interaction.Interaction');
goog.require('ol.layer.Vector');
goog.require('ol.pointer.PointerEvent');
goog.require('ol.source.Vector');
describe('ol.interaction.Draw', function() {
var target, map, source;
var width = 360;
var height = 180;
beforeEach(function(done) {
target = document.createElement('div');
var 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 ol.source.Vector();
var layer = new ol.layer.Vector({source: source});
map = new ol.Map({
target: target,
layers: [layer],
view: new ol.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.
*/
function simulateEvent(type, x, y, opt_shiftKey) {
var viewport = map.getViewport();
// calculated in case body has top < 0 (test runner with small window)
var position = viewport.getBoundingClientRect();
var shiftKey = opt_shiftKey !== undefined ? opt_shiftKey : false;
var event = new ol.pointer.PointerEvent(type, {
clientX: position.left + x + width / 2,
clientY: position.top + y + height / 2,
shiftKey: shiftKey
});
map.handleMapBrowserEvent(new ol.MapBrowserPointerEvent(type, map, event));
}
describe('constructor', function() {
it('creates a new interaction', function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'Point'
});
expect(draw).to.be.a(ol.interaction.Draw);
expect(draw).to.be.a(ol.interaction.Interaction);
});
it('accepts a freehand option', function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'LineString',
freehand: true
});
var event = new ol.pointer.PointerEvent('pointerdown', {
clientX: 0,
clientY: 0,
shiftKey: false
});
expect(draw.freehandCondition_(event)).to.be(true);
});
});
describe('specifying a geometryName', function() {
beforeEach(function() {
var draw = new ol.interaction.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);
var features = source.getFeatures();
var geometry = features[0].getGeometry();
expect(features[0].getGeometryName()).to.equal('the_geom');
expect(geometry).to.be.a(ol.geom.Point);
});
});
describe('specifying a clickTolerance', function() {
beforeEach(function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'Point',
clickTolerance: 6
});
map.addInteraction(draw);
});
it('adds a point when below the tolerance', function() {
var 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() {
var draw;
beforeEach(function() {
draw = new ol.interaction.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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.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);
var 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);
var features = source.getFeatures();
expect(features).to.have.length(0);
});
it('triggers draw events', function() {
var ds = sinon.spy();
var de = sinon.spy();
ol.events.listen(draw, 'drawstart', ds);
ol.events.listen(draw, 'drawend', de);
simulateEvent('pointermove', 10, 20);
simulateEvent('pointerdown', 10, 20);
simulateEvent('pointerup', 10, 20);
expect(ds).to.be.called();
expect(de).to.be.called();
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() {
var receivedEvents = {
end: 0,
addfeature: 0
};
ol.events.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);
});
});
describe('drawing multipoints', function() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: 'MultiPoint'
}));
});
it('draws multipoint on click', function() {
simulateEvent('pointermove', 30, 15);
simulateEvent('pointerdown', 30, 15);
simulateEvent('pointerup', 30, 15);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.MultiPoint);
expect(geometry.getCoordinates()).to.eql([[30, -15]]);
});
});
describe('drawing linestrings', function() {
var draw;
beforeEach(function() {
draw = new ol.interaction.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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [30, -20]]);
});
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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.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('pointerdown', 20, 30, true);
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);
var features = source.getFeatures();
// expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.LineString);
expect(geometry.getCoordinates()).to.eql([[10, -20], [30, -20]]);
});
it('triggers draw events', function() {
var ds = sinon.spy();
var de = sinon.spy();
ol.events.listen(draw, 'drawstart', ds);
ol.events.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).to.be.called();
expect(ds.callCount).to.be(1);
expect(de).to.be.called();
expect(de.callCount).to.be(1);
});
});
describe('drawing with a finishCondition', function() {
beforeEach(function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'LineString',
finishCondition: function(event) {
if (ol.array.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() {
var 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() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: 'MultiLineString'
}));
});
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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.MultiLineString);
expect(geometry.getCoordinates()).to.eql([[[10, -20], [30, -20]]]);
});
});
describe('drawing polygons', function() {
var draw;
beforeEach(function() {
draw = new ol.interaction.Draw({
source: source,
type: 'Polygon'
});
map.addInteraction(draw);
});
function isClosed(polygon) {
var first = polygon.getFirstCoordinate();
var 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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.Polygon);
expect(geometry.getCoordinates()).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.Polygon);
expect(geometry.getCoordinates()).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
it('triggers draw events', function() {
var ds = sinon.spy();
var de = sinon.spy();
ol.events.listen(draw, 'drawstart', ds);
ol.events.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).to.be.called();
expect(ds.callCount).to.be(1);
expect(de).to.be.called();
expect(de.callCount).to.be(1);
});
});
describe('drawing multi-polygons', function() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: 'MultiPolygon'
}));
});
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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.MultiPolygon);
var 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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.MultiPolygon);
var coordinates = geometry.getCoordinates();
expect(coordinates).to.have.length(1);
expect(coordinates[0]).to.eql([
[[10, -20], [30, -20], [40, -10], [10, -20]]
]);
});
});
describe('drawing circles', function() {
var draw;
beforeEach(function() {
draw = new ol.interaction.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);
var features = source.getFeatures();
expect(features).to.have.length(1);
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.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_ = ol.events.condition.always;
// no feture 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() {
var ds = sinon.spy();
var de = sinon.spy();
ol.events.listen(draw, 'drawstart', ds);
ol.events.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).to.be.called();
expect(ds.callCount).to.be(1);
expect(de).to.be.called();
expect(de.callCount).to.be(1);
});
});
describe('#setActive()', function() {
var interaction;
beforeEach(function() {
interaction = new ol.interaction.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() {
var 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() {
var spy = sinon.spy(interaction.overlay_, 'setMap');
var 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() {
var spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setActive(true);
expect(spy.getCall(0).args[0]).to.be(map);
});
it('fires change:active', function() {
var spy = sinon.spy(interaction.overlay_, 'setMap');
var 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() {
var interaction;
beforeEach(function() {
interaction = new ol.interaction.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() {
var 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() {
var 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);
var spy = sinon.spy(interaction.overlay_, 'setMap');
interaction.setMap(map);
expect(spy.getCall(0).args[0]).to.be(null);
});
});
});
});
describe('ol.interaction.Draw.createRegularPolygon', function() {
it('creates a regular polygon in Circle mode', function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'Circle',
geometryFunction:
ol.interaction.Draw.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);
var features = source.getFeatures();
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.Polygon);
var 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);
});
});
describe('ol.interaction.Draw.createBox', function() {
it('creates a box-shaped polygon in Circle mode', function() {
var draw = new ol.interaction.Draw({
source: source,
type: 'Circle',
geometryFunction: ol.interaction.Draw.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);
var features = source.getFeatures();
var geometry = features[0].getGeometry();
expect(geometry).to.be.a(ol.geom.Polygon);
var 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() {
var draw;
var feature;
beforeEach(function() {
draw = new ol.interaction.Draw({
source: source,
type: 'LineString'
});
map.addInteraction(draw);
feature = new ol.Feature(
new ol.geom.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() {
var spy = sinon.spy();
ol.events.listen(draw, 'drawstart', spy);
draw.extend(feature);
expect(spy.callCount).to.be(1);
});
});
});