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Add connection-lost detection to operation banner #125

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Merged
StudioNirin merged 1 commit into from
Apr 5, 2026
Merged

Add connection-lost detection to operation banner #125

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2 changes: 2 additions & 0 deletions web/static/css/custom.css
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Original file line number Diff line number Diff line change
Expand Up @@ -452,6 +452,7 @@ footer {
.di-pill--completed { --accent: #4CD964; --accent-dim: rgba(76,217,100,0.2); --accent-glow: rgba(76,217,100,0.15); }
.di-pill--completed-errors { --accent: #FF9500; --accent-dim: rgba(255,149,0,0.2); --accent-glow: rgba(255,149,0,0.15); }
.di-pill--idle { --accent: #e5a00d; --accent-dim: rgba(229,160,13,0.15); --accent-glow: rgba(229,160,13,0.1); }
.di-pill--disconnected { --accent: #FF3B30; --accent-dim: rgba(255,59,48,0.2); --accent-glow: rgba(255,59,48,0.15); }

/* Slide-down entrance */
@keyframes diSlideDown {
Expand Down Expand Up @@ -585,6 +586,7 @@ footer {

/* Error — red glow border */
.di-pill--error { border: 1.5px solid rgba(255,59,48,0.3); }
.di-pill--disconnected { border: 1.5px solid rgba(255,59,48,0.3); }

/* Running pills use a fixed width in compact mode to prevent jumpiness
as content changes (phase labels, counts, durations) every 2s poll */
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57 changes: 57 additions & 0 deletions web/templates/components/global_operation_banner.html
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Original file line number Diff line number Diff line change
Expand Up @@ -305,9 +305,66 @@
}
});

// ── Connection-lost detection ─────────────────────────────────────────
// Track consecutive banner poll failures. After 3 failures, replace the
// pill with a "Connection Lost" state so the user knows the server is
// unreachable (instead of the banner just freezing on its last state).
var _diBannerFailCount = 0;
var _diBannerDisconnected = false;

document.addEventListener('htmx:sendError', function(evt) {
if (!evt.detail.elt || !evt.detail.elt.closest('#global-operation-banner')) return;
_diBannerFailCount++;
if (_diBannerFailCount >= 3 && !_diBannerDisconnected) {
_diBannerDisconnected = true;
var banner = document.getElementById('global-operation-banner');
if (!banner) return;
// Preserve expansion state on outer div — only replace inner content
banner.innerHTML =
'<div class="di-pill di-pill--disconnected" data-state="disconnected"' +
' hx-get="/api/operation-banner" hx-trigger="every 5s" hx-swap="innerHTML" hx-target="#global-operation-banner">' +
' <div class="di-pill__compact">' +
' <div class="di-pill__left">' +
' <div class="di-icon"><i data-lucide="wifi-off" style="width:14px;height:14px;"></i></div>' +
' <span class="di-label">Connection Lost</span>' +
' </div>' +
' </div>' +
' <div class="di-pill__expanded">' +
' <div class="di-expanded__header">' +
' <div class="di-expanded__header-left">' +
' <div class="di-icon"><i data-lucide="wifi-off" style="width:14px;height:14px;"></i></div>' +
' <span class="di-label">Server Unreachable</span>' +
' </div>' +
' </div>' +
' <div style="font-size:0.78rem;color:rgba(255,255,255,0.5);text-align:center;padding:0.3rem 0;">' +
' Unable to reach the server. Retrying&hellip;' +
' </div>' +
' </div>' +
'</div>';
if (typeof lucide !== 'undefined') lucide.createIcons();
if (typeof htmx !== 'undefined') htmx.process(banner);
}
});

// Also catch HTTP errors (5xx) on the banner poll as connection issues
document.addEventListener('htmx:responseError', function(evt) {
if (!evt.detail.elt || !evt.detail.elt.closest('#global-operation-banner')) return;
_diBannerFailCount++;
if (_diBannerFailCount >= 3 && !_diBannerDisconnected) {
// Trigger the same logic — dispatch a synthetic sendError
document.dispatchEvent(new CustomEvent('htmx:sendError', {
detail: { elt: evt.detail.elt }
}));
}
});

// After every HTMX swap: re-render icons, sync animations, one-shot entrance
document.addEventListener('htmx:afterSwap', function(evt) {
if (evt.detail.target && evt.detail.target.id === 'global-operation-banner') {
// Successful swap — reset connection failure tracking
_diBannerFailCount = 0;
_diBannerDisconnected = false;

if (typeof lucide !== 'undefined') lucide.createIcons();

// Sync looping animations to wall clock so they don't visibly reset on 2s swap.
Expand Down
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