Leaflet/spec/suites/map/handler/Map.DragSpec.js

describe("Map.Drag", function () {
	describe("#addHook", function () {
		it("calls the map with dragging enabled", function () {
			var container = document.createElement('div');
			var map = new L.Map(container, {
				dragging: true
			});

			expect(map.dragging.enabled()).to.be(true);
			map.setView([0, 0], 0);
			expect(map.dragging.enabled()).to.be(true);
		});
		it("calls the map with dragging and worldCopyJump enabled", function () {
			var container = document.createElement('div');
			var map = new L.Map(container, {
				dragging: true,
				worldCopyJump: true
			});

			expect(map.dragging.enabled()).to.be(true);
			map.setView([0, 0], 0);
			expect(map.dragging.enabled()).to.be(true);
		});
		it("calls the map with dragging disabled and worldCopyJump enabled; " +
			"enables dragging after setting center and zoom", function () {
			var container = document.createElement('div');
			var map = new L.Map(container, {
				dragging: false,
				worldCopyJump: true
			});

			expect(map.dragging.enabled()).to.be(false);
			map.setView([0, 0], 0);
			map.dragging.enable();
			expect(map.dragging.enabled()).to.be(true);
		});
	});


	describe("mouse events", function () {
		it("change the center of the map", function (done) {
			var container = document.createElement('div');
			container.style.width = container.style.height = '600px';
			container.style.top = container.style.left = 0;
			container.style.position = 'absolute';
			// 			container.style.background = '#808080';

			document.body.appendChild(container);

			var map = new L.Map(container, {
				dragging: true,
				inertia: false
			});
			map.setView([0, 0], 1);

			var hand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					var center = map.getCenter();
					var zoom = map.getZoom();
					document.body.removeChild(container);
					expect(center.lat).to.be.within(21.9430, 21.9431);
					expect(center.lng).to.be(-180);
					expect(zoom).to.be(1);

					done();
				}
			});
			var mouse = hand.growFinger('mouse');

			// We move 5 pixels first to overcome the 3-pixel threshold of
			// L.Draggable.
			mouse.wait(100).moveTo(200, 200, 0)
				.down().moveBy(5, 0, 20).moveBy(256, 32, 200).up();
		});

		it("does not change the center of the map when mouse is moved less than the drag threshold", function (done) {
			var container = document.createElement('div');
			container.style.width = container.style.height = '600px';
			container.style.top = container.style.left = 0;
			container.style.position = 'absolute';

			document.body.appendChild(container);

			var map = new L.Map(container, {
				dragging: true,
				inertia: false
			});

			var originalCenter = L.latLng(0, 0);
			map.setView(originalCenter, 1);

			var spy = sinon.spy();
			map.on('drag', spy);

			var hand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					var center = map.getCenter();
					var zoom = map.getZoom();
					document.body.removeChild(container);
					expect(center).to.be(originalCenter); // Expect center point to be the same as before the click
					expect(spy.callCount).to.eql(0); // No drag event should have been fired.
					expect(zoom).to.be(1);

					done();
				}
			});
			var mouse = hand.growFinger('mouse');

			// We move 2 pixels to stay below the default 3-pixel threshold of
			// L.Draggable. This should result in a click and not a drag.
			mouse.wait(100).moveTo(200, 200, 0)
				.down().moveBy(1, 0, 20).moveBy(1, 0, 200).up();
		});
	});

	describe("touch events", function () {
		it.skipIfNotTouch("change the center of the map", function (done) {
			var container = document.createElement('div');
			container.style.width = container.style.height = '600px';
			container.style.top = container.style.left = 0;
			container.style.position = 'absolute';
			// 			container.style.background = '#808080';

			document.body.appendChild(container);

			var map = new L.Map(container, {
				dragging: true,
				inertia: false
			});
			map.setView([0, 0], 1);

			var hand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					var center = map.getCenter();
					var zoom = map.getZoom();
					document.body.removeChild(container);
					expect(center.lat).to.be.within(21.9430, 21.9431);
					expect(center.lng).to.be(-180);
					expect(zoom).to.be(1);

					done();
				}
			});
			var toucher = hand.growFinger('touch');

			// We move 5 pixels first to overcome the 3-pixel threshold of
			// L.Draggable.
			toucher.wait(100).moveTo(200, 200, 0)
				.down().moveBy(5, 0, 20).moveBy(256, 32, 200).up();
		});

		it("does not change the center of the map when finger is moved less than the drag threshold", function (done) {
			var container = document.createElement('div');
			container.style.width = container.style.height = '600px';
			container.style.top = container.style.left = 0;
			container.style.position = 'absolute';

			document.body.appendChild(container);

			var map = new L.Map(container, {
				dragging: true,
				inertia: false
			});

			var originalCenter = L.latLng(0, 0);
			map.setView(originalCenter, 1);

			var spy = sinon.spy();
			map.on('drag', spy);

			var hand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					var center = map.getCenter();
					var zoom = map.getZoom();
					document.body.removeChild(container);
					expect(center).to.be(originalCenter); // Expect center point to be the same as before the click
					expect(spy.callCount).to.eql(0); // No drag event should have been fired.
					expect(zoom).to.be(1);

					done();
				}
			});

			var toucher = hand.growFinger('touch');

			// We move 2 pixels to stay below the default 3-pixel threshold of
			// L.Draggable. This should result in a click and not a drag.
			toucher.wait(100).moveTo(200, 200, 0)
				.down().moveBy(1, 0, 20).moveBy(1, 0, 200).up();
		});

		it.skipIfNotTouch('reset itself after touchend', function (done) {

			var container = document.createElement('div');
			container.style.width = container.style.height = '600px';
			container.style.top = container.style.left = 0;
			container.style.position = 'absolute';
			document.body.appendChild(container);
			var map = new L.Map(container, {
				dragging: true,
				inertia: false,
				zoomAnimation: false	// If true, the test has to wait extra 250msec
			});
			map.setView([0, 0], 1);

			// Change default events order to make the tap comming before the touchzoom.
			// See #4315
			map.dragging.disable();
			map.dragging.enable();

			var center = map.getCenter(),
			zoom = map.getZoom();


			var mouseHand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					document.body.removeChild(container);
					expect(map.getCenter()).to.eql(center);
					expect(map.getZoom()).to.eql(zoom);

					done();
				}
			});
			var mouse = mouseHand.growFinger('mouse');
			var hand = new Hand({
				timing: 'fastframe',
				onStop: function () {
					expect(map.getCenter()).not.to.eql(center);
					expect(map.getZoom()).not.to.eql(zoom);
					center = map.getCenter();
					zoom = map.getZoom();
					mouse.moveTo(220, 220, 0).moveBy(200, 0, 2000);
				}
			});

			var f1 = hand.growFinger('touch');
			var f2 = hand.growFinger('touch');

			hand.sync(5);
			f1.wait(100).moveTo(275, 300, 0)
				.down().moveBy(-200, 0, 1000).up(200);
			// This finger should touch me map after the other one.
			f2.wait(110).moveTo(325, 300, 0)
				.down().moveBy(210, 0, 1000).up(200);

		});

	});

});