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openlayers/test/spec/ol/interaction/drawinteraction.test.js
oterral b2819a2332 Add some tests for drawing polygons
2014-01-22 09:59:04 +01:00

496 lines
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JavaScript
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goog.provide('ol.test.interaction.Draw');
describe('ol.interaction.Draw', function() {
var target, map, source;
var width = 360;
var height = 180;
beforeEach(function() {
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,
renderer: ol.RendererHint.CANVAS,
layers: [layer],
view: new ol.View2D({
projection: 'EPSG:4326',
center: [0, 0],
resolution: 1
})
});
});
afterEach(function() {
goog.dispose(map);
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.
*/
function simulateEvent(type, x, y) {
var viewport = map.getViewport();
// calculated in case body has top < 0 (test runner with small window)
var position = goog.style.getClientPosition(viewport);
var event = new goog.events.BrowserEvent({
type: type,
clientX: position.x + x + width / 2,
clientY: position.y + y + height / 2
});
goog.events.fireListeners(viewport, type, false, event);
}
describe('constructor', function() {
it('creates a new interaction', function() {
var draw = new ol.interaction.Draw({
source: source,
type: ol.geom.GeometryType.POINT
});
expect(draw).to.be.a(ol.interaction.Draw);
expect(draw).to.be.a(ol.interaction.Interaction);
});
});
describe('drawing points', function() {
var draw;
beforeEach(function() {
draw = new ol.interaction.Draw({
source: source,
type: ol.geom.GeometryType.POINT
});
map.addInteraction(draw);
});
it('draws a point on click', function() {
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
var features = source.getAllFeatures();
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('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mousemove', 15, 20);
simulateEvent('mouseup', 15, 20);
simulateEvent('click', 15, 20);
var features = source.getAllFeatures();
expect(features).to.have.length(0);
});
it('triggers draw events', function() {
var ds = sinon.spy();
var de = sinon.spy();
goog.events.listen(draw, ol.DrawEventType.DRAWSTART, ds);
goog.events.listen(draw, ol.DrawEventType.DRAWEND, de);
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
simulateEvent('mousemove', 20, 20);
expect(ds).to.be.called(2);
expect(de).to.be.called(1);
});
});
describe('drawing multipoints', function() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: ol.geom.GeometryType.MULTI_POINT
}));
});
it('draws multipoint on click', function() {
simulateEvent('mousemove', 30, 15);
simulateEvent('mousedown', 30, 15);
simulateEvent('mouseup', 30, 15);
simulateEvent('click', 30, 15);
var features = source.getAllFeatures();
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: ol.geom.GeometryType.LINE_STRING
});
map.addInteraction(draw);
});
it('draws linestring with clicks, finishing on last point', function() {
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// finish on second point
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
var features = source.getAllFeatures();
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('does not add a point with a significant drag', function() {
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// drag map
simulateEvent('mousemove', 15, 20);
simulateEvent('mousedown', 15, 20);
simulateEvent('mousemove', 20, 20);
simulateEvent('mouseup', 20, 20);
simulateEvent('click', 20, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// finish on second point
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
var features = source.getAllFeatures();
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();
goog.events.listen(draw, ol.DrawEventType.DRAWSTART, ds);
goog.events.listen(draw, ol.DrawEventType.DRAWEND, de);
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// finish on second point
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
simulateEvent('mousemove', 10, 20);
expect(ds).to.be.called(1);
expect(de).to.be.called(1);
});
});
describe('drawing multi-linestrings', function() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: ol.geom.GeometryType.MULTI_LINE_STRING
}));
});
it('draws multi with clicks, finishing on last point', function() {
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// finish on second point
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
var features = source.getAllFeatures();
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: ol.geom.GeometryType.POLYGON
});
map.addInteraction(draw);
});
it('draws polygon with clicks, finishing on first point', function() {
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// third point
simulateEvent('mousemove', 40, 10);
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 10);
// finish on first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
var features = source.getAllFeatures();
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('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// third point
simulateEvent('mousemove', 40, 10);
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 10);
// finish on last point
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 11);
var features = source.getAllFeatures();
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();
goog.events.listen(draw, ol.DrawEventType.DRAWSTART, ds);
goog.events.listen(draw, ol.DrawEventType.DRAWEND, de);
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// third point
simulateEvent('mousemove', 30, 10);
simulateEvent('mousedown', 30, 10);
simulateEvent('mouseup', 30, 10);
simulateEvent('click', 30, 10);
// finish on first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
expect(ds).to.be.called(1);
expect(de).to.be.called(1);
});
});
describe('drawing multi-polygons', function() {
beforeEach(function() {
map.addInteraction(new ol.interaction.Draw({
source: source,
type: ol.geom.GeometryType.MULTI_POLYGON
}));
});
it('draws multi with clicks, finishing on first point', function() {
// first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// third point
simulateEvent('mousemove', 40, 10);
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 10);
// finish on first point
simulateEvent('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
var features = source.getAllFeatures();
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('mousemove', 10, 20);
simulateEvent('mousedown', 10, 20);
simulateEvent('mouseup', 10, 20);
simulateEvent('click', 10, 20);
// second point
simulateEvent('mousemove', 30, 20);
simulateEvent('mousedown', 30, 20);
simulateEvent('mouseup', 30, 20);
simulateEvent('click', 30, 20);
// third point
simulateEvent('mousemove', 40, 10);
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 10);
// finish on last point
simulateEvent('mousedown', 40, 10);
simulateEvent('mouseup', 40, 10);
simulateEvent('click', 40, 10);
var features = source.getAllFeatures();
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]]
]);
});
});
});
goog.require('goog.dispose');
goog.require('goog.events');
goog.require('goog.events.BrowserEvent');
goog.require('goog.style');
goog.require('ol.Map');
goog.require('ol.RendererHint');
goog.require('ol.View2D');
goog.require('ol.geom.GeometryType');
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.source.Vector');
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