Implemented InteractionMapper.off

lib/interaction.js

@@ -1087,6 +1087,10 @@ export class InteractionMapper extends InteractionDelegate {
             return this
         }
 
+        if (typeof Hammer.__hammers === 'undefined') {
+            Hammer.__hammers = new Map()
+        }
+
         // convert to array
         types = Array.isArray(types) ? types : types.split(/\s/)
         if (elements instanceof NodeList || elements instanceof HTMLCollection) {
@@ -1129,6 +1133,14 @@ export class InteractionMapper extends InteractionDelegate {
                     hammer.on(type, event => {
                         cb(event)
                     })
+
+                    if (Hammer.__hammers.has(elements[j])) {
+                        const elementHammers = Hammer.__hammers.get(elements[j])
+                        elementHammers.push(hammer)
+                        Hammer.__hammers.set(elements[j], elementHammers)
+                    } else {
+                        Hammer.__hammers.set(elements[j], [hammer])
+                    }
                 }
             } else {
                 for (let j = 0; j < elements.length; j++) {
@@ -1138,8 +1150,35 @@ export class InteractionMapper extends InteractionDelegate {
                 }
             }
         }
+    }
 
-        return this
+    /**
+     *
+     *
+     * @static
+     * @param {HTMLElement|HTMLElement[]} elements - An HTML element or an array of HTML elements.
+     */
+    static off(elements) {
+        if (typeof Hammer === 'undefined') {
+            console.error('Hammer.js not found!')
+            return this
+        }
+
+        // convert to array
+        if (elements instanceof NodeList || elements instanceof HTMLCollection) {
+            elements = Array.from(elements)
+        }
+        elements = Array.isArray(elements) ? elements : [elements]
+
+        for (let i = 0; i < elements.length; i++) {
+            const element = elements[i]
+
+            if (Hammer.__hammers.has(element)) {
+                const elementHammers = Hammer.__hammers.get(element)
+                elementHammers.forEach(it => it.destroy())
+                Hammer.__hammers.delete(element)
+            }
+        }
     }
 }