Convert behaviors to web components

bookmarks/frontend/components/clear-button.js

@@ -0,0 +1,39 @@
+class ClearButton extends HTMLElement {
+  connectedCallback() {
+    requestAnimationFrame(() => {
+      this.field = document.getElementById(this.dataset.for);
+      if (!this.field) {
+        console.error(`Field with ID ${this.dataset.for} not found`);
+        return;
+      }
+      this.update = this.update.bind(this);
+      this.clear = this.clear.bind(this);
+
+      this.addEventListener("click", this.clear);
+      this.field.addEventListener("input", this.update);
+      this.field.addEventListener("value-changed", this.update);
+      this.update();
+    });
+  }
+
+  disconnectedCallback() {
+    if (!this.field) {
+      return;
+    }
+    this.removeEventListener("click", this.clear);
+    this.field.removeEventListener("input", this.update);
+    this.field.removeEventListener("value-changed", this.update);
+  }
+
+  update() {
+    this.style.display = this.field.value ? "inline" : "none";
+  }
+
+  clear() {
+    this.field.value = "";
+    this.field.focus();
+    this.update();
+  }
+}
+
+customElements.define("ld-clear-button", ClearButton);