Merge branch 'fix/22-bind-user-observer' into 'master'

bugfix: observe bind-user attribute

See merge request !12

sib-auth.js

@@ -29,7 +29,7 @@ class SIBAuth extends HTMLElement {
     this.install();
     this.processState();
     if (this.getUser()) {
-      this.dispatchUserInfo(this.getUser());
+      this.dispatchUserInfo();
     }
   }
 
@@ -52,6 +52,28 @@ class SIBAuth extends HTMLElement {
     SIBBase.prototype.login = () => this.login();
     SIBBase.prototype.logout = () => this.logout();
     SIBBase.prototype.getUser = () => this.getUser();
+    this.bindUserObserver = new MutationObserver((mutations) => {
+      mutations.forEach((mutation) => {
+        if (mutation.type === 'attributes') {
+          if (!mutation.target.hasAttribute('bind-user')) return;
+          this.applyUser(mutation.target);
+          return;
+        }
+        mutation.addedNodes.forEach((node) => {
+          if (!(node instanceof Element)) return;
+          if (!node.hasAttribute('bind-user')) return;
+          this.applyUser(node);
+        });
+      });
+    });
+    this.bindUserObserver.observe(document.body, {
+      childList: true,
+      attributes: true,
+      characterData: false,
+      subtree: true,
+      attributeOldValue: false,
+      attributeFilter: ['bind-user'],
+    });
   }
 
   /** @function
@@ -63,6 +85,7 @@ class SIBAuth extends HTMLElement {
     SIBBase.prototype.login = null;
     SIBBase.prototype.logout = null;
     SIBBase.prototype.getUser = null;
+    this.bindUserObserver.disconnect();
   }
 
   /** @function
@@ -176,17 +199,13 @@ class SIBAuth extends HTMLElement {
 
   /** @function
    * @name dispatchUserInfo
-   * @param {User} user - User
    * Try to replace data-src by user iri on [bind-user] elements
    */
   // eslint-disable-next-line class-methods-use-this
-  async dispatchUserInfo(user) {
+  async dispatchUserInfo() {
     const processDOM = async () => {
-      const id = user.profile.website;
-      const elements = document.querySelectorAll(`[bind-user]:not([data-src="${id}"])`);
-      elements.forEach((element) => {
-        element.setAttribute('data-src', id);
-      });
+      const elements = document.querySelectorAll('[bind-user]');
+      elements.forEach(element => this.applyUser(element));
     };
     // check document state and add a hook on DOMContentLoaded if needed
     if (document.readyState === 'loading') {
@@ -196,6 +215,18 @@ class SIBAuth extends HTMLElement {
     }
   }
 
+  /** @function
+   * @name applyUser
+   * @param {Element} element
+   */
+  applyUser(element) {
+    const user = this.getUser();
+    if (user == null) return;
+    const id = user.profile.website;
+    if (element.getAttribute(id === 'data-src')) return;
+    element.setAttribute('data-src', id);
+  }
+
   /** @function
    * @name getUser
    * Return User or undefined
@@ -224,7 +255,7 @@ class SIBAuth extends HTMLElement {
   setUser(user) {
     localStorage.setItem('oidc_user', JSON.stringify(user));
     this.user = user;
-    this.dispatchUserInfo(user);
+    this.dispatchUserInfo();
   }
 
   /** @function