tests for mouse- and touchsource

test/spec/ol/pointer/touchsource.test.js

@@ -0,0 +1,138 @@
+goog.provide('ol.test.pointer.TouchSource');
+
+describe('ol.pointer.TouchSource', function() {
+  var handler;
+  var target;
+  var eventSpy;
+
+  beforeEach(function() {
+    target = goog.dom.createElement(goog.dom.TagName.DIV);
+
+    // make sure that a mouse and touch event source is used
+    ol.BrowserFeature.HAS_POINTER = false;
+    ol.BrowserFeature.HAS_MSPOINTER = false;
+    ol.BrowserFeature.HAS_TOUCH = true;
+
+    handler = new ol.pointer.PointerEventHandler(target);
+    eventSpy = sinon.spy();
+  });
+
+  afterEach(function() {
+    handler.dispose();
+  });
+
+  describe('pointer event creation', function() {
+    it('generates pointer events for each touch contact', function() {
+      goog.events.listen(handler, 'pointerdown', eventSpy);
+
+      simulateTouchEvent('touchstart', [
+        {identifier: 3, clientX: 10, clientY: 11},
+        {identifier: 4, clientX: 30, clientY: 45}
+      ]);
+
+      expect(eventSpy.calledTwice).to.be.ok();
+
+      // pointer event for the first touch contact
+      var pointerEvent1 = eventSpy.firstCall.args[0];
+      expect(pointerEvent1.pointerId).to.be(5);
+      expect(pointerEvent1.pointerType).to.be('touch');
+      expect(pointerEvent1.clientX).to.be(10);
+      expect(pointerEvent1.clientY).to.be(11);
+
+      // pointer event for the second touch contact
+      var pointerEvent2 = eventSpy.secondCall.args[0];
+      expect(pointerEvent2.pointerId).to.be(6);
+      expect(pointerEvent2.pointerType).to.be('touch');
+      expect(pointerEvent2.clientX).to.be(30);
+      expect(pointerEvent2.clientY).to.be(45);
+
+      expect(handler.pointerMap.getCount()).to.be(2);
+    });
+
+    it('creates the right pointer events', function() {
+      goog.events.listen(handler, 'pointerdown', eventSpy);
+
+      // first touch
+      simulateTouchEvent('touchstart', [
+        {identifier: 3, clientX: 10, clientY: 11}
+      ]);
+      expect(eventSpy.calledOnce).to.be.ok();
+      expect(handler.pointerMap.getCount()).to.be(1);
+
+      // second touch (first touch still down)
+      simulateTouchEvent('touchstart', [
+        {identifier: 4, clientX: 30, clientY: 45}
+      ], [{identifier: 3}, {identifier: 4}]
+      );
+      expect(eventSpy.calledTwice).to.be.ok();
+      expect(handler.pointerMap.getCount()).to.be(2);
+
+      // first touch moves
+      var moveEventSpy = sinon.spy();
+      goog.events.listen(handler, 'pointermove', moveEventSpy);
+
+      simulateTouchEvent('touchmove', [
+        {identifier: 3, clientX: 15, clientY: 16}
+      ], [{identifier: 3}, {identifier: 4}]
+      );
+      expect(moveEventSpy.calledOnce).to.be.ok();
+
+      // and then both touches go up
+      var upEventSpy = sinon.spy();
+      goog.events.listen(handler, 'pointerup', upEventSpy);
+
+      simulateTouchEvent('touchend', [
+        {identifier: 3, clientX: 15, clientY: 16},
+        {identifier: 4, clientX: 30, clientY: 45}
+      ], [{identifier: 3}, {identifier: 4}]
+      );
+      expect(upEventSpy.calledTwice).to.be.ok();
+      expect(handler.pointerMap.getCount()).to.be(0);
+    });
+
+    it('handles flawed touches', function() {
+      goog.events.listen(handler, 'pointerdown', eventSpy);
+
+      // first touch
+      simulateTouchEvent('touchstart', [
+        {identifier: 3, clientX: 10, clientY: 11}
+      ]);
+      expect(eventSpy.calledOnce).to.be.ok();
+      expect(handler.pointerMap.getCount()).to.be(1);
+
+      // second touch, but the first touch has disappeared
+      var cancelEventSpy = sinon.spy();
+      goog.events.listen(handler, 'pointercancel', cancelEventSpy);
+      simulateTouchEvent('touchstart', [
+        {identifier: 4, clientX: 30, clientY: 45}
+      ], [{identifier: 4}]
+      );
+      expect(eventSpy.calledTwice).to.be.ok();
+
+      // the first (broken) touch is canceled
+      expect(cancelEventSpy.calledOnce).to.be.ok();
+      expect(handler.pointerMap.getCount()).to.be(1);
+    });
+  });
+
+  function simulateTouchEvent(type, changedTouches, touches) {
+    var touches = goog.isDef(touches) ?
+        touches : changedTouches;
+
+    var event = new goog.events.BrowserEvent({
+      type: type,
+      touches: touches,
+      changedTouches: changedTouches
+    });
+    goog.events.fireListeners(target, type, false, event);
+  }
+});
+
+goog.require('goog.dom');
+goog.require('goog.dom.TagName');
+goog.require('goog.events');
+goog.require('goog.events.BrowserEvent');
+goog.require('ol.BrowserFeature');
+goog.require('ol.pointer.PointerEvent');
+goog.require('ol.pointer.PointerEventHandler');
+goog.require('ol.pointer.TouchSource');