Window introduced

js/input/mouse/MouseMoveDraggable.js

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+import IMouseClickDrag from "./IMouseClickDrag"
+import Utility from "../../Utility"
+
+/**
+ * @typedef {import("../../Blueprint").default} Blueprint
+ * @typedef {import("../../element/ISelectableDraggableElement").default} ISelectableDraggableElement
+ */
+
+/** @extends {IMouseClickDrag<ISelectableDraggableElement>} */
+export default class MouseMoveDraggable extends IMouseClickDrag {
+
+    dragTo(location, movement) {
+        const initialTargetLocation = [this.target.locationX, this.target.locationY]
+        const [mouseLocation, targetLocation] = this.stepSize > 1
+            ? [Utility.snapToGrid(location, this.stepSize), Utility.snapToGrid(initialTargetLocation, this.stepSize)]
+            : [location, initialTargetLocation]
+        const d = [
+            mouseLocation[0] - this.mouseLocation[0],
+            mouseLocation[1] - this.mouseLocation[1]
+        ]
+        if (d[0] == 0 && d[1] == 0) {
+            return
+        }
+        // Make sure it snaps on the grid
+        d[0] += targetLocation[0] - this.target.locationX
+        d[1] += targetLocation[1] - this.target.locationY
+        this.target.addLocation(d)
+        // Reassign the position of mouse
+        this.mouseLocation = mouseLocation
+    }
+}