switch crypto implementation and add spinner

src/App.svelte

@@ -15,7 +15,6 @@ invoke('get_config').then(config => $appState.config = config);
 listen('credentials-request', (tauriEvent) => {
     $appState.pendingRequests.put(tauriEvent.payload);
 });
-window.state = $appState;
 
 acceptRequest();
 </script>

src/ui/Spinner.svelte

@@ -0,0 +1,113 @@
+<script>
+    export let color = 'base-content';
+    export let thickness = '2px';
+    let classes = '';
+    export { classes as class };
+
+    const colorVars = {
+        'primary': 'p',
+        'primary-focus': 'pf',
+        'primary-content': 'pc',
+        'secondary': 's',
+        'secondary-focus': 'sf',
+        'secondary-content': 'sc',
+        'accent': 'a',
+        'accent-focus': 'af',
+        'accent-content': 'ac',
+        'neutral': 'n',
+        'neutral-focus': 'nf',
+        'neutral-content': 'nc',
+        'base-100': 'b1',
+        'base-200': 'b2',
+        'base-300': 'b3',
+        'base-content': 'bc',
+        'info': 'in',
+        'info-content': 'inc',
+        'success': 'su',
+        'success-content': 'suc',
+        'warning': 'wa',
+        'warning-content': 'wac',
+        'error': 'er',
+        'error-content': 'erc',
+    }
+
+    let arcStyle = `border-width: ${thickness};`;
+    arcStyle += `border-color: hsl(var(--${colorVars[color]})) transparent transparent transparent;`;
+</script>
+
+<style>
+    #spinner {
+        position: relative;
+
+        animation: spin;
+        animation-duration: 1.5s;
+        animation-iteration-count: infinite;
+        animation-timing-function: linear;
+    }
+
+    @keyframes spin {
+        50% { transform: rotate(225deg); }
+        100% { transform: rotate(360deg); }
+    }
+
+    .arc {
+        position: absolute;
+        top: 0;
+        left: 0;
+        border-radius: 9999px;
+    }
+
+    .arc-top {
+        transform: rotate(-45deg);
+    }
+
+    .arc-right {
+        animation: spin-right;
+        animation-duration: 3s;
+        animation-iteration-count: infinite;
+    }
+
+    .arc-bottom {
+        animation: spin-bottom;
+        animation-duration: 3s;
+        animation-iteration-count: infinite;
+    }
+
+    .arc-left {
+        animation: spin-left;
+        animation-duration: 3s;
+        animation-iteration-count: infinite;
+    }
+
+    @keyframes spin-top {
+        0% { transform: rotate(-45deg); }
+        50% { transform: rotate(315deg); }
+        100% { transform: rotate(-45deg); }
+    }
+
+    @keyframes spin-right {
+        0% { transform: rotate(45deg); }
+        50% { transform: rotate(315deg); }
+        100% { transform: rotate(405deg); }
+    }
+
+    @keyframes spin-bottom {
+        0% { transform: rotate(135deg); }
+        50% { transform: rotate(315deg); }
+        100% { transform: rotate(495deg); }
+    }
+
+    @keyframes spin-left {
+        0% { transform: rotate(225deg); }
+        50% { transform: rotate(315deg); }
+        100% { transform: rotate(585deg); }
+    }
+</style>
+
+
+<div id="spinner" class="w-6 h-6 {classes}">
+    <div class="arc arc-top w-full h-full" style={arcStyle}></div>
+    <div class="arc arc-right w-full h-full" style={arcStyle}></div>
+    <div class="arc arc-bottom w-full h-full" style={arcStyle}></div>
+    <div class="arc arc-left w-full h-full" style={arcStyle}></div>
+</div>

src/views/EnterCredentials.svelte

@@ -7,6 +7,7 @@
     import { navigate } from '../lib/routing.js';
     import Link from '../ui/Link.svelte';
     import ErrorAlert from '../ui/ErrorAlert.svelte';
+    import Spinner from '../ui/Spinner.svelte';
 
 
     let errorMsg = null;
@@ -19,6 +20,7 @@
         }
     }
 
+    let saving = false;
     async function save() {
         if (passphrase !== confirmPassphrase) {
             alert.shake();
@@ -27,6 +29,7 @@
 
         let credentials = {AccessKeyId, SecretAccessKey};
         try {
+            saving = true;
             await invoke('save_credentials', {credentials, passphrase});
             if ($appState.currentRequest) {
                 navigate('Approve');
@@ -47,6 +50,8 @@
             if (alert) {
                 alert.shake();
             }
+
+            saving = false;
         }
     }
 </script>
@@ -65,7 +70,13 @@
     <input type="password" placeholder="Passphrase" bind:value="{passphrase}" class="input input-bordered" />
     <input type="password" placeholder="Re-enter passphrase" bind:value={confirmPassphrase} class="input input-bordered" on:change={confirm} />
 
-    <input type="submit" class="btn btn-primary" />
+    <button type="submit" class="btn btn-primary">
+        {#if saving}
+            <Spinner class="w-5 h-5" color="primary-content" thickness="2px"/>
+        {:else}
+            Submit
+        {/if}
+    </button>
     <Link target="Home" hotkey="Escape">
         <button class="btn btn-sm btn-outline w-full">Cancel</button>
     </Link>

src/views/Unlock.svelte

@@ -7,12 +7,14 @@
     import { getRootCause } from '../lib/errors.js';
     import ErrorAlert from '../ui/ErrorAlert.svelte';
     import Link from '../ui/Link.svelte';
+    import Spinner from '../ui/Spinner.svelte';
 
 
     let errorMsg = null;
     let alert;
     let passphrase = '';
     let loadTime = 0;
+    let saving = false;
     async function unlock() {
         // The hotkey for navigating here from homepage is Enter, which also
         // happens to trigger the form submit event
@@ -21,6 +23,7 @@
         }
 
         try {
+            saving = true;
             let r = await invoke('unlock', {passphrase});
             $appState.credentialStatus = 'unlocked';
             if ($appState.currentRequest) {
@@ -43,6 +46,8 @@
             if (alert) {
                 alert.shake();
             }
+
+            saving = true;
         }
     }
 
@@ -62,7 +67,14 @@
     <!-- svelte-ignore a11y-autofocus -->
     <input autofocus name="password" type="password" placeholder="correct horse battery staple" bind:value="{passphrase}" class="input input-bordered" />
 
-    <input type="submit" class="btn btn-primary" />
+    <button type="submit" class="btn btn-primary">
+        {#if saving}
+            <Spinner class="w-5 h-5" color="primary-content" thickness="2px"/>
+        {:else}
+            Submit
+        {/if}
+    </button>
+
     <Link target="Home" hotkey="Escape">
         <button class="btn btn-outline btn-sm w-full">Cancel</button>
     </Link>