Rewrite AddInstanceFlow

Now with spinner!

static/add_instance_flow.mts

@@ -1,14 +1,27 @@
 import { AddInstanceDialog } from "./add_an_instance.mjs";
 import { initializeInstanceDetailsDialog } from "./confirm_instance_details.mjs";
+import { Dialog } from "./dialog.mjs";
 import storageManager, { Instance } from "./storage_manager.mjs";
 
-export function initializeAddInstanceFlow(
+export class AddInstanceFlow {
+    addDialog: AddInstanceDialog;
+    spinnerDialog: Dialog;
+    detailsDialog: HTMLDialogElement;
+
+    constructor(
+        addDialog: AddInstanceDialog | HTMLDialogElement,
+        spinnerDialog: HTMLDialogElement,
         detailsDialog: HTMLDialogElement,
-    addDialog: HTMLDialogElement
-): {
-    showAddInstanceDialog: () => void,
-    hideAddInstanceDialog: () => void
-} {
+    ) {
+        if (addDialog instanceof AddInstanceDialog)
+            this.addDialog = addDialog;
+        else
+            this.addDialog = new AddInstanceDialog(addDialog, true);
+        this.spinnerDialog = new Dialog(spinnerDialog);
+        this.detailsDialog = detailsDialog;
+    }
+
+    async start() {
         const instanceDetailsDialogCallback = (
             name: string,
             host: string,
@@ -31,39 +44,35 @@ export function initializeAddInstanceFlow(
             showInstanceDetailsDialog,
             hideInstanceDetailsDialog,
             populateInstanceDetailsDialog
-    } = initializeInstanceDetailsDialog(detailsDialog, instanceDetailsDialogCallback);
+        } = initializeInstanceDetailsDialog(this.detailsDialog, instanceDetailsDialogCallback);
+
+        const {
+            autoQueryMetadata,
+            host,
+            secure,
+        } = await this.addDialog.prompt();
 
-    const addInstanceDialogCallback = async (
-        host: string,
-        secure: boolean,
-        autoQueryMetadata: boolean,
-    ) => {
         try {
-            if (!autoQueryMetadata) throw new Error("Don't");
+            if (!autoQueryMetadata) throw null; // Skip to catch block
+
+            this.spinnerDialog.open();
+
             const { name, software, iconURL } =
                 await fetch(`/api/instance_info/${secure}/${encodeURIComponent(host)}`)
                     .then(r => r.json());
             if (
                 typeof name !== "string"
                 || typeof software !== "string"
-                || !(typeof iconURL === "string" || iconURL === null)
+                || !(typeof iconURL === "string" || iconURL === null) // I guess TS is too stupid to understand this?
             )
                 throw new Error("Invalid API response");
+
             populateInstanceDetailsDialog(name, host, secure, software, iconURL as string | null);
         } catch {
             populateInstanceDetailsDialog(host, host, secure, "", null);
         } finally {
+            this.spinnerDialog.close();
             showInstanceDetailsDialog();
         }
     }
-
-    const {
-        showAddInstanceDialog,
-        hideAddInstanceDialog
-    } = initializeAddInstanceDialog(addDialog, addInstanceDialogCallback);
-
-    return {
-        showAddInstanceDialog,
-        hideAddInstanceDialog
-    };
 }

static/crossroad.html

@@ -29,7 +29,7 @@
                         <p id="no-instance">You currently don't have any instances. You should add one!</p>
                         <form id="instanceSelectForm" class="align-start wfit-content"></form>
                         <br>
-                        <button id="showAddInstanceDialog">Add an instance</button>
+                        <button id="startAddInstanceFlow">Add an instance</button>
                     </center>
                 </div>
                 <div class="half-width align-self-start">
@@ -108,6 +108,7 @@ Unchecking this is not recommended, and this option only exists for exceptional
             <button type="reset" class="close">Cancel</button>
         </form>
     </dialog>
+    <dialog id="spinner"><span class="spinner"></span></dialog>
 </body>
 
 </html>

static/crossroad.mts

@@ -1,20 +1,22 @@
-import { initializeAddInstanceFlow } from "./add_instance_flow.mjs";
+import { AddInstanceFlow } from "./add_instance_flow.mjs";
 import { findButtonOrFail, findDialogOrFail, findFormOrFail, findInputOrFail, findParagraphOrFail, findPreOrFail } from "./dom.mjs";
 import knownSoftware from "./known_software.mjs";
 import storageManager from "./storage_manager.mjs";
 
 const radioButtonName = "instanceSelect";
 
+let addInstanceFlow: AddInstanceFlow | undefined;
 const mainDialog = findDialogOrFail(document.body, "#mainDialog");
-const showAddInstanceDialogButton = findButtonOrFail(document.body, "#showAddInstanceDialog");
-const detailsDialog = findDialogOrFail(document.body, "#instanceDetails");
+const startAddInstanceFlowButton = findButtonOrFail(document.body, "#startAddInstanceFlow");
 const addDialog = findDialogOrFail(document.body, "#addInstance");
+const spinnerDialog = findDialogOrFail(document.body, "#spinner");
+const detailsDialog = findDialogOrFail(document.body, "#instanceDetails");
 const instanceSelectForm = findFormOrFail(document.body, "#instanceSelectForm");
 const redirectButton = findButtonOrFail(document.body, "#redirect");
 const redirectAlwaysButton = findButtonOrFail(document.body, "#redirectAlways");
 const pathText = findPreOrFail(document.body, "#path");
 
-showAddInstanceDialogButton.addEventListener("click", e => showAddInstanceDialog());
+startAddInstanceFlowButton.addEventListener("click", e => addInstanceFlow?.start());
 
 redirectButton.addEventListener("click", e => {
     // Can be assumed to not fail because the button is disabled if there are no options and the first one is selected by default
@@ -28,9 +30,6 @@ redirectAlwaysButton.addEventListener("click", e => {
     redirect(option);
 });
 
-let showAddInstanceDialog = () => { };
-let hideAddInstanceDialog = () => { };
-
 // Don't bother initializing if we're performing autoredirect
 if (!autoRedirect()) {
     createInstanceSelectOptions();
@@ -40,10 +39,7 @@ if (!autoRedirect()) {
 
     pathText.innerText = getTargetPath();
 
-    ({
-        showAddInstanceDialog,
-        hideAddInstanceDialog
-    } = initializeAddInstanceFlow(detailsDialog, addDialog));
+    addInstanceFlow = new AddInstanceFlow(addDialog, spinnerDialog, detailsDialog);
 
     mainDialog.show();
 };

static/dialog.mts

@@ -12,7 +12,7 @@ export class Dialog {
      */
     protected initializeDOM() { }
 
-    protected open() {
+    open() {
         this.dialog.showModal();
     }
 

static/main.css

@@ -1,3 +1,5 @@
+@import url("/static/spinner.css");
+
 :root {
     --red: #cb0b0b;
     --blue: #2081c3;

static/spinner.css

@@ -0,0 +1,78 @@
+/* Sourced and modified from https://cssloaders.github.io/ */
+
+.spinner {
+    display: block;
+    animation: rotate 1s infinite;
+    height: 50px;
+    width: 50px;
+}
+
+.spinner:before,
+.spinner:after {
+    border-radius: 50%;
+    content: "";
+    display: block;
+    height: 20px;
+    width: 20px;
+}
+
+.spinner:before {
+    animation: ball1 1s infinite;
+    background-color: var(--red);
+    box-shadow: 30px 0 0 var(--blue);
+    margin-bottom: 10px;
+}
+
+.spinner:after {
+    animation: ball2 1s infinite;
+    background-color: var(--blue);
+    box-shadow: 30px 0 0 var(--red);
+}
+
+@keyframes rotate {
+    0% {
+        transform: rotate(0deg) scale(0.8)
+    }
+
+    50% {
+        transform: rotate(360deg) scale(1.2)
+    }
+
+    100% {
+        transform: rotate(720deg) scale(0.8)
+    }
+}
+
+@keyframes ball1 {
+    0% {
+        box-shadow: 30px 0 0 var(--blue);
+    }
+
+    50% {
+        box-shadow: 0 0 0 var(--blue);
+        margin-bottom: 0;
+        transform: translate(15px, 15px);
+    }
+
+    100% {
+        box-shadow: 30px 0 0 var(--blue);
+        margin-bottom: 10px;
+    }
+}
+
+@keyframes ball2 {
+    0% {
+        box-shadow: 30px 0 0 var(--red);
+    }
+
+    50% {
+        box-shadow: 0 0 0 var(--red);
+        margin-top: -20px;
+        transform: translate(15px, 15px);
+    }
+
+    100% {
+        box-shadow: 30px 0 0 var(--red);
+        margin-top: 0;
+    }
+}