fixed prevent default interaction in mobile mode for drag interaction

package.json

@@ -1,11 +1,11 @@
 {
-  "name": "plottable",
+  "name": "@texx/plottable",
   "description": "A modular charting library built on D3",
-  "version": "3.13.0",
+  "version": "3.14.0",
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "https://github.com/palantir/plottable.git"
+    "url": "https://github.com/7eXx/plottable.git"
   },
   "author": "Palantir Technologies",
   "main": "build/src/index.js",

src/interactions/dragInteraction.ts

@@ -84,7 +84,6 @@ export class Drag extends Interaction {
     }
     const translatedP = this._translateToComponentSpace(point);
     if (this._isInsideComponent(translatedP)) {
-      event.preventDefault();
       this._dragging = true;
       this._dragOrigin = translatedP;
       this._dragStartCallbacks.callCallbacks(this._dragOrigin);

test/utils/domUtilsTests.ts

@@ -95,4 +95,45 @@ describe("Utils.DOM", () => {
       child.remove();
     });
   });
+
+  describe("elementWidth(), elementHeight() for display none element", () => {
+    it("can get a display none element's size", () => {
+      const parent = TestMethods.getElementParent();
+      parent.style("display", "none");
+      parent.style("width", "600px");
+      parent.style("height", "400px");
+      const parentElem = <Element> parent.node();
+
+      const width = Plottable.Utils.DOM.elementWidth(parentElem);
+      assert.strictEqual(width, 600, "measured width matches set width");
+      const height = Plottable.Utils.DOM.elementHeight(parentElem);
+      assert.strictEqual(height, 400, "measured height matches set height");
+    });
+
+    it("can get a div display none element's size", () => {
+      const div = TestMethods.generateDiv(300, 200);
+      div.style("display", "none");
+      const divElement = <Element> div.node();
+
+      const width = Plottable.Utils.DOM.elementWidth(divElement);
+      assert.strictEqual(width, 300, "measured width matches set width");
+      const height = Plottable.Utils.DOM.elementHeight(divElement);
+      assert.strictEqual(height, 200, "measured height matches set height");
+      div.remove();
+    });
+
+    it("can get a div display element's size inside parent display none", () => {
+      const parent = TestMethods.getElementParent();
+      parent.attr("display", "none");
+
+      const div = TestMethods.generateDiv(300, 200);
+      const divElement = <Element> div.node();
+
+      const width = Plottable.Utils.DOM.elementWidth(divElement);
+      assert.strictEqual(width, 300, "measured width matches set width");
+      const height = Plottable.Utils.DOM.elementHeight(divElement);
+      assert.strictEqual(height, 200, "measured height matches set height");
+      div.remove();
+    });
+  });
 });