Merge pull request #390 from jay-patel9/master

Kill previously keepAlive page instance

Author: uguraslan

src/Router/index.d.ts

@@ -804,6 +804,11 @@ declare namespace Router {
    */
   export function getActivePage(): Lightning.Component | null;
 
+  /**
+   * Returns the reference of the active Page instance
+   */
+  export function deletePage(param: string): void;
+
   /**
    * Returns the active route path blueprint
    */

src/Router/index.js

@@ -44,6 +44,7 @@ import {
   beforeEachRoute,
   getActiveHash,
   getActiveRoute,
+  deleteCurrentInstance,
 } from './utils/router'
 
 import { focusWidget, getActiveWidget, restoreFocus } from './utils/widgets'
@@ -517,6 +518,10 @@ const root = () => {
   }
 }
 
+const deletePage = (param) => {
+  deleteCurrentInstance(param)
+}
+
 // export API
 export default {
   startRouter,
@@ -530,6 +535,7 @@ export default {
     // warning
     return getActivePage()
   },
+  deletePage,
   getActiveRoute,
   getActiveHash,
   focusWidget,

src/Router/utils/router.js

@@ -299,6 +299,15 @@ export const getComponent = route => {
   }
   return null
 }
+
+// delete existing route instance from memory
+export const deleteCurrentInstance = route => {
+  if (components.has(route) && pagesHost.getIndex(components.get(route)) !== -1) {
+    pagesHost.remove(components.get(route))
+    storeComponent(route, components.get(route)._routedType || components.get(route).constructor)
+  }
+}
+
 /**
  * Test if router needs to update browser location hash
  * @returns {boolean}