addNodeParams, getNodeParams and setAnchor for wc luigiClient

client/luigi-element.d.ts

@@ -414,4 +414,27 @@ export interface LuigiClient {
   linkManager: () => LinkManager;
   uxManager: () => UxManager;
   publishEvent: (event: Event) => void;
+  /**
+   * Sets node parameters in Luigi Core. The parameters will be added to the URL.
+   * @param {Object} params
+   * @param {boolean} keepBrowserHistory
+   * @memberof LuigiClient
+   */
+  addNodeParams: (params: Object, keepBrowserHistory: boolean) => void;
+  /**
+   * Returns the node parameters of the active URL.
+   * Node parameters are defined like URL query parameters but with a specific prefix allowing Luigi to pass them to the micro frontend view. The default prefix is **~** and you can use it in the following way: `https://my.luigi.app/home/products?~sort=asc&~page=3`.
+   * <!-- add-attribute:class:warning -->
+   * > **NOTE:** some special characters (`<`, `>`, `"`, `'`, `/`) in node parameters are HTML-encoded.
+   * @param {boolean} shouldDesanitise defines whether the specially encoded characters should be desanitised
+   * @returns {Object} node parameters, where the object property name is the node parameter name without the prefix, and its value is the value of the node parameter. For example `{sort: 'asc', page: 3}`
+   * @memberof LuigiClient
+   */
+  getNodeParams: (shouldDesanitise: boolean) => Object;
+  /**
+   * Sends anchor to Luigi Core. The anchor will be added to the URL.
+   * @param {string} anchor
+   * @memberof LuigiClient
+   */
+  setAnchor: (anchor: string) => void;
 }

container/public/LuigiContainer.svelte.d.ts

@@ -1,3 +1,6 @@
+export declare interface NodeParams {
+  [key: string]: string;
+}
 export default class LuigiContainer extends HTMLElement {
   /**
    * The URL of the microfrontend to be rendered
@@ -34,6 +37,11 @@ export default class LuigiContainer extends HTMLElement {
    */
   active_feature_toggle_list: string[];
 
+  /**
+   * The parameters to be passed to the web-component-based micro frontend. Will not passed to the compound children.
+   */
+  node_params: NodeParams;
+
   /**
    * Updates the context of the microfrontend
    * @param contextObj The context object to be updated

container/src/LuigiCompoundContainer.svelte

@@ -9,6 +9,7 @@
   export let locale;
   export let theme;
   export let active_feature_toggle_list;
+  export let node_params;
 
   let compoundConfig;
 

container/src/LuigiContainer.svelte

@@ -10,6 +10,7 @@
   export let locale;
   export let theme;
   export let active_feature_toggle_list;
+  export let node_params;
 
   let iframeHandle:
     | {

container/src/services/web-component-helpers.ts

@@ -179,3 +179,25 @@ export const registerEventListeners = (eventbusListeners, navNode, nodeId: strin
     });
   }
 };
+
+/**
+ * Desanitization of an object
+ * @param {Object} paramsMap
+ * @returns
+ */
+export const deSanitizeParamsMap = paramsMap => {
+  return Object.entries(paramsMap).reduce((sanitizedMap, paramPair) => {
+    sanitizedMap[deSanitizeParam(paramPair[0])] = deSanitizeParam(paramPair[1]);
+    return sanitizedMap;
+  }, {});
+};
+
+function deSanitizeParam(param: any) {
+  let desani = (String as any)(param)
+    .replaceAll('&lt;', '<')
+    .replaceAll('&gt;', '>')
+    .replaceAll('&quot;', '"')
+    .replaceAll('&#39;', "'")
+    .replaceAll('&sol;', '/');
+  return desani;
+}

container/src/services/webcomponents.service.ts

@@ -1,4 +1,9 @@
-import { DefaultCompoundRenderer, resolveRenderer, registerEventListeners } from './web-component-helpers';
+import {
+  DefaultCompoundRenderer,
+  resolveRenderer,
+  registerEventListeners,
+  deSanitizeParamsMap
+} from './web-component-helpers';
 import { ContainerService } from './container.service';
 import { Events } from '../constants/communication';
 
@@ -25,14 +30,22 @@ export class WebComponentService {
   /** Creates a web component with tagname wc_id and adds it to wcItemContainer,
    * if attached to wc_container
    */
-  attachWC(wc_id: string, wcItemPlaceholder: HTMLDivElement, wc_container, ctx, viewUrl: string, nodeId: string) {
+  attachWC(
+    wc_id: string,
+    wcItemPlaceholder: HTMLDivElement,
+    wc_container,
+    ctx,
+    viewUrl: string,
+    nodeId: string,
+    isCompoundChild?: boolean
+  ) {
     if (wc_container && wc_container.contains(wcItemPlaceholder)) {
       const wc = document.createElement(wc_id);
       if (nodeId) {
         wc.setAttribute('nodeId', nodeId);
       }
 
-      this.initWC(wc, wc_id, wc_container, viewUrl, ctx, nodeId);
+      this.initWC(wc, wc_id, wc_container, viewUrl, ctx, nodeId, isCompoundChild);
       wc_container.replaceChild(wc, wcItemPlaceholder);
       if (wc_container._luigi_node) {
         wc_container._luigi_mfe_webcomponent = wc;
@@ -60,7 +73,7 @@ export class WebComponentService {
    * @param wc_id a tagname that is used when creating the web component element
    * @returns an object with the Luigi Client API
    */
-  createClientAPI(eventBusElement, nodeId: string, wc_id: string) {
+  createClientAPI(eventBusElement, nodeId: string, wc_id: string, isCompoundChild?: boolean) {
     return {
       linkManager: () => {
         return {
@@ -103,12 +116,43 @@ export class WebComponentService {
       },
       luigiClientInit: () => {
         this.dispatchLuigiEvent(Events.INITIALIZED, {});
+      },
+      addNodeParams: (params, keepBrowserHistory) => {
+        if (isCompoundChild) {
+          return;
+        }
+        this.dispatchLuigiEvent(Events.ADD_NODE_PARAMS_REQUEST, { params, keepBrowserHistory });
+      },
+      getNodeParams: shouldDesanitise => {
+        if (isCompoundChild) {
+          return {};
+        }
+        let result = this.thisComponent.getAttribute('node_params') || {};
+        result = JSON.parse(result);
+        if (shouldDesanitise) {
+          return deSanitizeParamsMap(result);
+        }
+        return result;
+      },
+      setAnchor: anchor => {
+        if (isCompoundChild) {
+          return;
+        }
+        this.dispatchLuigiEvent(Events.SET_ANCHOR_LINK_REQUEST, anchor);
       }
     };
   }
 
-  initWC(wc: HTMLElement | any, wc_id, eventBusElement, viewUrl: string, ctx, nodeId: string) {
-    const clientAPI = this.createClientAPI(eventBusElement, nodeId, wc_id);
+  initWC(
+    wc: HTMLElement | any,
+    wc_id,
+    eventBusElement,
+    viewUrl: string,
+    ctx,
+    nodeId: string,
+    isCompoundChild?: boolean
+  ) {
+    const clientAPI = this.createClientAPI(eventBusElement, nodeId, wc_id, isCompoundChild);
 
     if (wc.__postProcess) {
       const url =
@@ -128,8 +172,9 @@ export class WebComponentService {
    */
   generateWCId(viewUrl: string) {
     let charRep = '';
-    for (let i = 0; i < viewUrl.length; i++) {
-      charRep += viewUrl.charCodeAt(i).toString(16);
+    let normalizedViewUrl = new URL(viewUrl, location.href).href;
+    for (let i = 0; i < normalizedViewUrl.length; i++) {
+      charRep += normalizedViewUrl.charCodeAt(i).toString(16);
     }
     return 'luigi-wc-' + charRep;
   }
@@ -242,7 +287,14 @@ export class WebComponentService {
   /** Adds a web component defined by viewUrl to the wc_container and sets the node context.
    * If the web component is not defined yet, it gets imported.
    */
-  renderWebComponent(viewUrl: string, wc_container: HTMLElement | any, context: any, node: any, nodeId?: any) {
+  renderWebComponent(
+    viewUrl: string,
+    wc_container: HTMLElement | any,
+    context: any,
+    node: any,
+    nodeId?: any,
+    isCompoundChild?: boolean
+  ) {
     const i18nViewUrl = this.processViewUrl(viewUrl, { context });
     const wc_id =
       node.webcomponent && node.webcomponent.tagName ? node.webcomponent.tagName : this.generateWCId(i18nViewUrl);
@@ -251,21 +303,21 @@ export class WebComponentService {
     wc_container._luigi_node = node;
 
     if (window.customElements.get(wc_id)) {
-      this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId);
+      this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId, isCompoundChild);
     } else {
       /** Custom import function, if defined */
       if ((window as any).luigiWCFn) {
         (window as any).luigiWCFn(i18nViewUrl, wc_id, wcItemPlaceholder, () => {
-          this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId);
+          this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId, isCompoundChild);
         });
       } else if (node.webcomponent && node.webcomponent.selfRegistered) {
         this.includeSelfRegisteredWCFromUrl(node, i18nViewUrl, () => {
-          this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId);
+          this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId, isCompoundChild);
         });
       } else {
         this.registerWCFromUrl(i18nViewUrl, wc_id)
           .then(() => {
-            this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId);
+            this.attachWC(wc_id, wcItemPlaceholder, wc_container, context, i18nViewUrl, nodeId, isCompoundChild);
           })
           .catch(error => {
             console.warn('ERROR =>', error);
@@ -369,7 +421,7 @@ export class WebComponentService {
             renderer.attachCompoundItem(compoundCnt, compoundItemCnt);
 
             const nodeId = wc.id || 'gen_' + index;
-            this.renderWebComponent(wc.viewUrl, compoundItemCnt, ctx, wc, nodeId);
+            this.renderWebComponent(wc.viewUrl, compoundItemCnt, ctx, wc, nodeId, true);
             registerEventListeners(ebListeners, wc, nodeId);
           });
           wc_container.appendChild(compoundCnt);

container/test-app/helloWorldWC.js

@@ -8,7 +8,13 @@ export default class extends HTMLElement {
     template.innerHTML = `<section><p>Hello World!</p></section>`;
 
     const templateBtn = document.createElement('template');
-    templateBtn.innerHTML = '<button>Click me!</button>';
+    templateBtn.innerHTML = '<button id="aButton">Click me!</button>';
+
+    const addNodeParamsBtn = document.createElement('template');
+    addNodeParamsBtn.innerHTML = '<button id="addNodeParams">add node params</button>';
+
+    const getNodeParamsBtn = document.createElement('template');
+    getNodeParamsBtn.innerHTML = '<button id="getNodeParams">get node params</button>';
 
     const empty = document.createElement('template');
     empty.innerHTML = `<section><p>Test!</p><br/><br/></section>`;
@@ -19,13 +25,15 @@ export default class extends HTMLElement {
     });
     this._shadowRoot.appendChild(template.content.cloneNode(true));
     this._shadowRoot.appendChild(templateBtn.content.cloneNode(true));
+    this._shadowRoot.appendChild(addNodeParamsBtn.content.cloneNode(true));
+    this._shadowRoot.appendChild(getNodeParamsBtn.content.cloneNode(true));
 
     for (let index = 0; index < 10; index++) {
       this._shadowRoot.appendChild(empty.content.cloneNode(true));
     }
 
     this.$paragraph = this._shadowRoot.querySelector('p');
-    this.$button = this._shadowRoot.querySelector('button');
+    this.$button = this._shadowRoot.querySelector('#aButton');
     this.$button.addEventListener('click', () => {
       if (this.LuigiClient) {
         this.LuigiClient.uxManager().showAlert({
@@ -44,6 +52,23 @@ export default class extends HTMLElement {
         });
       }
     });
+
+    this.$button2 = this._shadowRoot.querySelector('#addNodeParams');
+    this.$button2.addEventListener('click', () => {
+      if (this.LuigiClient) {
+        this.LuigiClient.addNodeParams({ Luigi: 'rocks' }, true);
+      }
+    });
+    this.$button3 = this._shadowRoot.querySelector('#getNodeParams');
+    this.$button3.addEventListener('click', () => {
+      if (this.LuigiClient) {
+        let nodeParams = this.LuigiClient.getNodeParams(false);
+        this.LuigiClient.uxManager().showAlert({
+          text: 'LuigiClient.getNodeParams()=' + JSON.stringify(nodeParams),
+          type: 'info'
+        });
+      }
+    });
   }
 
   set context(ctx) {

container/test-app/index.html

@@ -298,6 +298,7 @@
       <luigi-compound-container
         id="dashboard"
         context='{"label": "Dashboard"}'
+        node_params='{"Luigi":"rocks"}'
       ></luigi-compound-container>
     </div>
     <div class="lui-wrapper" route="dashboard2">
@@ -306,6 +307,7 @@
         context='{"label": "Dashboard2", "title":"Dashboard2"}'
         skipInitCheck="false"
         viewUrl="http://localhost:8080/nested.js"
+        node_params='{"Das ist ein":"compound tets"}'
       ></luigi-compound-container>
     </div>
     <!-- viewUrl="http://localhost:8080/nested.js" -->
@@ -334,7 +336,7 @@
     </div>
     <div class="lui-wrapper" route="test">
       <luigi-container
-        viewURL="http://localhost:8080/test.js"
+        viewURL="/test.js"
         webcomponent="true"
         id="test-defer-init-false"
         skipInitCheck="true"
@@ -356,16 +358,17 @@
         locale="en"
         theme="sap_fiori_3"
         active_feature_toggle_list="['ft1','ft2']"
+        node_params='{"Luigi":"rocks from attri &<strong>asdf<strong> bute"}'
       ></luigi-container>
     </div>
     <div class="lui-wrapper" route="error-test">
       <luigi-container
         viewURL="https://luigiwebcomponents.gitlab.io/luigiwebcomponentmf/mainasdad.js"
         webcomponent="true"
-        context='{"label": "Error Handler"}'
+        context=' {"label": "Error Handler" }'
       ></luigi-container>
       <luigi-container
-        viewURL="test.js"
+        viewURL="/test.js"
         webcomponent="true"
         context='{"label": "Error Handler WC 2"}'
       >
@@ -423,7 +426,7 @@
           },
           {
             id: 'input1',
-            viewUrl: utilMFEDomain + '/input.js',
+            viewUrl: '/helloWorldWC.js',
             context: {
               title: 'Some input',
               instant: true
@@ -539,6 +542,36 @@
             console.log(event.detail);
           }
         );
+        luigiContainer.addEventListener(MFEventID.ADD_NODE_PARAMS_REQUEST, event => {
+          console.log(event.detail.params);
+          const params = event.detail.params;
+          console.log('params', params);
+          // const url = new URL(location);
+          // let hash = url.hash;
+          // //TODO URLSearchParams does sanitization..
+          // let paramPrefix = '~';
+          // let localhash = hash;
+          // const [hashValue, givenQueryParamsString] = localhash.split('?');
+          // const searchParams = new URLSearchParams(givenQueryParamsString);
+          // for (const [key, value] of Object.entries(params)) {
+          //   const paramKey = paramPrefix ? `${paramPrefix}${key}` : key;
+          //   searchParams.set(paramKey, value);
+          //   if (value === undefined) {
+          //     searchParams.delete(paramKey);
+          //   }
+          // }
+          // localhash = hashValue;
+          // if (searchParams.toString() !== '') {
+          //   localhash += `?${searchParams.toString()}`;
+          // }
+          // url.hash = localhash;
+          // event.detail.keepBrowserHistory
+          //   ? window.history.pushState({}, '', url)
+          //   : window.history.replaceState({}, '', url);
+          // document
+          //   .querySelector('[data-test-id="luigi-client-api-test-01"]')
+          //   .setAttribute('node_params', `${JSON.stringify(params)}`);
+        });
 
         //...
       });