Custom Reconnect Modal

[Ben Mercer (benjamano)]

Has anyone worked on a custom reload modal?
When in dark mode it looks pretty funky, as the text is unreadable, I've noticed even the V5 page suffers with this same problem:

So I'm wondering - has anyone created the reconnect modal using Fluent UI 5?

I know it could be just a simple css change, but If someones also made one following the Fluent UI design standard I wouldn't mind copying it into my project 😊

If not I will give it a go myself 😊

Thanks

[Ben Mercer (benjamano)]

Made a rough one with an indeterminate spinner, this is good enough for me, I will attach the code below if anyone wants it

// Components/Layout/ReconnectModal.razor

<script type="module" src="@Assets["Components/Layout/ReconnectModal.razor.js"]"></script>

<dialog id="components-reconnect-modal" data-nosnippet>
    <div class="components-reconnect-container">
        <FluentStack Orientation="Orientation.Vertical" HorizontalAlignment="HorizontalAlignment.Center" VerticalGap="10">
            <div class="components-reconnect-spinner">
                <FluentSpinner Size="SpinnerSize.Large" aria-hidden="true" />
            </div>
            <div class="components-failed-to-connect-visible">
                <FluentIcon Value="@(new Icons.Regular.Size48.ErrorCircle())" Color="Color.Error"/>
            </div>
            <div class="components-reconnect-first-attempt-visible">
                <FluentText>
                    Rejoining the server...
                </FluentText>
            </div>
            <div class="components-reconnect-repeated-attempt-visible">
                <FluentText>
                    Rejoin failed... trying again in <span id="components-seconds-to-next-attempt"></span> seconds.
                </FluentText>
            </div>
            <div class="components-reconnect-failed-visible">
                <FluentText>
                    Failed to rejoin.<br />Please retry or reload the page.
                </FluentText>
            </div>
            <div id="components-reconnect-button" class="components-reconnect-failed-visible">
                <FluentButton Appearance="ButtonAppearance.Outline">
                    Retry
                </FluentButton>
            </div>
            <div class="components-pause-visible">
                <FluentText>
                    The session has been paused by the server.
                </FluentText>
            </div>
            <div id="components-resume-button" class="components-pause-visible">
                <FluentButton Appearance="ButtonAppearance.Outline">
                    Resume
                </FluentButton>
            </div>
            <div class="components-resume-failed-visible">
                <FluentText>
                    Failed to resume the session.<br />Please reload the page.
                </FluentText>
            </div>
        </FluentStack>
    </div>
</dialog>

/* Components/Lanyout/ReconnectModel.razor.css */

.components-reconnect-first-attempt-visible,
.components-reconnect-repeated-attempt-visible,
.components-reconnect-failed-visible,
.components-pause-visible,
.components-resume-failed-visible,
.components-reconnect-spinner,
.components-failed-to-connect-visible {
    display: none !important;
}

#components-reconnect-modal.components-reconnect-show .components-reconnect-first-attempt-visible,
#components-reconnect-modal.components-reconnect-show .components-reconnect-spinner,
#components-reconnect-modal.components-reconnect-retrying .components-reconnect-repeated-attempt-visible,
#components-reconnect-modal.components-reconnect-retrying .components-reconnect-spinner,
#components-reconnect-modal.components-reconnect-failed .components-reconnect-failed-visible,
#components-reconnect-modal.components-reconnect-failed .components-failed-to-connect-visible,
#components-reconnect-modal.components-reconnect-paused .components-pause-visible,
#components-reconnect-modal.components-reconnect-resume-failed .components-resume-failed-visible {
    display: block !important;
}

#components-reconnect-modal {
    background: var(--colorNeutralBackground2); 
    color: var(--colorNeutralForeground1); 
    border: var(--strokeWidthThin) solid var(--colorNeutralStroke1); 
    border-radius: var(--borderRadiusMedium);
    width: 20rem;
    margin: 20vh auto;
    padding: 2rem;
    box-shadow: 0 3px 6px 2px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: display 0.5s allow-discrete, overlay 0.5s allow-discrete;
    animation: components-reconnect-modal-fadeOutOpacity 0.5s both;
    &[open]

{
    animation: components-reconnect-modal-slideUp 1.5s cubic-bezier(.05, .89, .25, 1.02) 0.3s, components-reconnect-modal-fadeInOpacity 0.5s ease-in-out 0.3s;
    animation-fill-mode: both;
}

}

#components-reconnect-modal::backdrop {
    background-color: rgba(0, 0, 0, 0.4);
    animation: components-reconnect-modal-fadeInOpacity 0.5s ease-in-out;
    opacity: 1;
}

@keyframes components-reconnect-modal-slideUp {
    0% {
        transform: translateY(30px) scale(0.95);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes components-reconnect-modal-fadeInOpacity {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes components-reconnect-modal-fadeOutOpacity {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.components-reconnect-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

#components-reconnect-modal fluent-text {
    margin: 0;
    text-align: center;
}

// Components/Layout/ReconnectModal.razor.js

// Set up event handlers
const reconnectModal = document.getElementById("components-reconnect-modal");
reconnectModal.addEventListener("components-reconnect-state-changed", handleReconnectStateChanged);

const retryButton = document.getElementById("components-reconnect-button");
retryButton.addEventListener("click", retry);

const resumeButton = document.getElementById("components-resume-button");
resumeButton.addEventListener("click", resume);

function handleReconnectStateChanged(event) {
    if (event.detail.state === "show") {
        reconnectModal.showModal();
    } else if (event.detail.state === "hide") {
        reconnectModal.close();
    } else if (event.detail.state === "failed") {
        document.addEventListener("visibilitychange", retryWhenDocumentBecomesVisible);
    } else if (event.detail.state === "rejected") {
        location.reload();
    }
}

async function retry() {
    document.removeEventListener("visibilitychange", retryWhenDocumentBecomesVisible);

    try {
        // Reconnect will asynchronously return:
        // - true to mean success
        // - false to mean we reached the server, but it rejected the connection (e.g., unknown circuit ID)
        // - exception to mean we didn't reach the server (this can be sync or async)
        const successful = await Blazor.reconnect();
        if (!successful) {
            // We have been able to reach the server, but the circuit is no longer available.
            // We'll reload the page so the user can continue using the app as quickly as possible.
            const resumeSuccessful = await Blazor.resumeCircuit();
            if (!resumeSuccessful) {
                location.reload();
            } else {
                reconnectModal.close();
            }
        }
    } catch (err) {
        // We got an exception, server is currently unavailable
        document.addEventListener("visibilitychange", retryWhenDocumentBecomesVisible);
    }
}

async function resume() {
    try {
        const successful = await Blazor.resumeCircuit();
        if (!successful) {
            location.reload();
        }
    } catch {
        location.reload();
    }
}

async function retryWhenDocumentBecomesVisible() {
    if (document.visibilityState === "visible") {
        await retry();
    }
}

Hope this helps someone out 😊

[Denis Voituron (dvoituron)]

Thanks for the tip. I'll take your suggestion.
But you can simply edit the CSS file ReconnectModal.razor.css in .NET 10... without modifying the other existing files.

.components-reconnect-first-attempt-visible,
.components-reconnect-repeated-attempt-visible,
.components-reconnect-failed-visible,
.components-pause-visible,
.components-resume-failed-visible,
.components-rejoining-animation {
    display: none;
}

#components-reconnect-modal.components-reconnect-show .components-reconnect-first-attempt-visible,
#components-reconnect-modal.components-reconnect-show .components-rejoining-animation,
#components-reconnect-modal.components-reconnect-paused .components-pause-visible,
#components-reconnect-modal.components-reconnect-resume-failed .components-resume-failed-visible,
#components-reconnect-modal.components-reconnect-retrying,
#components-reconnect-modal.components-reconnect-retrying .components-reconnect-repeated-attempt-visible,
#components-reconnect-modal.components-reconnect-retrying .components-rejoining-animation,
#components-reconnect-modal.components-reconnect-failed,
#components-reconnect-modal.components-reconnect-failed .components-reconnect-failed-visible {
    display: block;
}


#components-reconnect-modal {
    background-color: var(--colorNeutralBackground1);
    color: var(--colorNeutralForeground1);
    width: 20rem;
    margin: 20vh auto;
    padding: 2rem;
    border: 0;
    border-radius: var(--borderRadiusLarge);
    box-shadow: var(--shadow16);
    opacity: 0;
    transition: display 0.5s allow-discrete, overlay 0.5s allow-discrete;
    animation: components-reconnect-modal-fadeOutOpacity 0.5s both;
    &[open]

{
    animation: components-reconnect-modal-slideUp 1.5s cubic-bezier(.05, .89, .25, 1.02) 0.3s, components-reconnect-modal-fadeInOpacity 0.5s ease-in-out 0.3s;
    animation-fill-mode: both;
}

}

#components-reconnect-modal::backdrop {
    background-color: var(--colorBackgroundOverlay);
    animation: components-reconnect-modal-fadeInOpacity 0.5s ease-in-out;
    opacity: 1;
}

@keyframes components-reconnect-modal-slideUp {
    0% {
        transform: translateY(30px) scale(0.95);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes components-reconnect-modal-fadeInOpacity {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes components-reconnect-modal-fadeOutOpacity {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.components-reconnect-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

#components-reconnect-modal p {
    margin: 0;
    text-align: center;
}

#components-reconnect-modal button {
    border: 0;
    background-color: var(--colorBrandBackground);
    color: var(--colorNeutralForegroundOnBrand);
    padding: 4px 24px;
    border-radius: var(--borderRadiusMedium);
}

    #components-reconnect-modal button:hover {
        background-color: var(--colorBrandBackgroundHover);
    }

    #components-reconnect-modal button:active {
        background-color: var(--colorBrandBackgroundPressed);
    }

.components-rejoining-animation {
    position: relative;
    width: 80px;
    height: 80px;
}

    .components-rejoining-animation div {
        position: absolute;
        border: var(--strokeWidthThicker) solid var(--colorBrandStroke1);
        opacity: 1;
        border-radius: 50%;
        animation: components-rejoining-animation 1.5s cubic-bezier(0, 0.2, 0.8, 1) infinite;
    }

        .components-rejoining-animation div:nth-child(2) {
            animation-delay: -0.5s;
        }

@keyframes components-rejoining-animation {
    0% {
        top: 40px;
        left: 40px;
        width: 0;
        height: 0;
        opacity: 0;
    }

    4.9% {
        top: 40px;
        left: 40px;
        width: 0;
        height: 0;
        opacity: 0;
    }

    5% {
        top: 40px;
        left: 40px;
        width: 0;
        height: 0;
        opacity: 1;
    }

    100% {
        top: 0px;
        left: 0px;
        width: 80px;
        height: 80px;
        opacity: 0;
    }
}