Scott.Idem/OSIT-AE-App-Svelte
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perf(launcher): minimize session switch latency with non-blocking SWR and stable observables

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This commit is contained in:
Scott Idem
2026-01-30 16:26:38 -05:00
parent 1dc0f0d77c
commit cb46eec440
3 changed files with 141 additions and 330 deletions
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37
src/lib/ae_events/ae_events__event_session.ts
View File

@@ -10,7 +10,7 @@ import { load_ae_obj_li__event_presentation } from '$lib/ae_events/ae_events__ev
const ae_promises: key_val = {};
// Updated 2026-01-30: Trace-Ready SWR Pattern
// Updated 2026-01-30: Trace-Ready SWR Pattern with Performance Timing
export async function load_ae_obj_id__event_session({
api_cfg,
event_session_id,
@@ -40,6 +40,7 @@ export async function load_ae_obj_id__event_session({
try_cache?: boolean;
log_lvl?: number;
}): Promise<ae_EventSession | null> {
const start_time = performance.now();
if (log_lvl) {
console.log(`🔎 [Trace] load_ae_obj_id__event_session: START (id=${event_session_id}, try_cache=${try_cache})`);
}
@@ -49,18 +50,22 @@ export async function load_ae_obj_id__event_session({
try {
const cached = await db_events.session.get(event_session_id);
if (cached) {
if (log_lvl) console.log(`✅ [Trace] load_ae_obj_id: CACHE HIT. Returning stale data for id=${event_session_id}`);
const elapsed = (performance.now() - start_time).toFixed(2);
if (log_lvl) console.log(`✅ [Trace] load_ae_obj_id: CACHE HIT at ${elapsed}ms. Returning stale shell for id=${event_session_id}`);
// Background refresh & nested loads (non-blocking)
// Background tasks: refresh parent and warm child caches (non-blocking)
_refresh_session_id_background({
api_cfg, event_session_id, view, try_cache,
inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li,
enabled, hidden, limit, offset, log_lvl: log_lvl > 1 ? log_lvl : 0
});
return await _handle_nested_loads(cached, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl: 0 });
// In SWR mode, we fire child loads in background to warm IDB for the view's LiveQueries
_handle_nested_loads(cached, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl: 0 });
return cached; // Return immediately without awaiting nested loads
} else if (log_lvl) {
console.log(`⏳ [Trace] load_ae_obj_id: CACHE MISS for id=${event_session_id}`);
console.log(`⏳ [Trace] load_ae_obj_id: CACHE MISS at ${(performance.now() - start_time).toFixed(2)}ms for id=${event_session_id}`);
}
} catch (e) {
if (log_lvl) console.error(`❌ [Trace] load_ae_obj_id: Cache access error:`, e);
@@ -76,6 +81,7 @@ export async function load_ae_obj_id__event_session({
* Internal background refresh for a single session
*/
async function _refresh_session_id_background({ api_cfg, event_session_id, view, try_cache, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, log_lvl }: any) {
const start_time = performance.now();
if (typeof navigator !== 'undefined' && !navigator.onLine) return null;
try {
if (log_lvl) console.log(`📡 [Trace] _refresh_session_id: API Fetching id=${event_session_id}`);
@@ -84,8 +90,9 @@ async function _refresh_session_id_background({ api_cfg, event_session_id, view,
if (result) {
const processed = await process_ae_obj__event_session_props({ obj_li: [result], log_lvl });
const processed_obj = processed[0];
const elapsed = (performance.now() - start_time).toFixed(2);
if (log_lvl) console.log(`📦 [Trace] _refresh_session_id: Received from API (id=${processed_obj.id})`);
if (log_lvl) console.log(`📦 [Trace] _refresh_session_id: Received from API at ${elapsed}ms (id=${processed_obj.id})`);
if (try_cache) {
await db_save_ae_obj_li__ae_obj({ db_instance: db_events, table_name: 'session', obj_li: [processed_obj], properties_to_save, log_lvl });
@@ -103,6 +110,7 @@ async function _refresh_session_id_background({ api_cfg, event_session_id, view,
* Helper to handle nested collection loads for a session
*/
async function _handle_nested_loads(session_obj: any, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl }: any) {
const start_time = performance.now();
const current_session_id = session_obj.id || session_obj.event_session_id;
if (!current_session_id) return session_obj;
@@ -121,11 +129,14 @@ async function _handle_nested_loads(session_obj: any, { api_cfg, inc_file_li, in
}).then(res => session_obj.event_presentation_li = res));
}
if (tasks.length > 0) await Promise.all(tasks);
if (tasks.length > 0) {
await Promise.all(tasks);
if (log_lvl) console.log(`🔗 [Trace] _handle_nested_loads: Finished child collections in ${(performance.now() - start_time).toFixed(2)}ms`);
}
return session_obj;
}
// Updated 2026-01-30: Robust Cache Lookups with Tracing
// Updated 2026-01-30: Robust Cache Lookups with Performance Tracing
export async function load_ae_obj_li__event_session({
api_cfg,
for_obj_type = 'event',
@@ -165,6 +176,7 @@ export async function load_ae_obj_li__event_session({
try_cache?: boolean;
log_lvl?: number;
}): Promise<ae_EventSession[]> {
const start_time = performance.now();
if (log_lvl) {
console.log(`🔎 [Trace] load_ae_obj_li__event_session: START (for=${for_obj_type}:${for_obj_id}, try_cache=${try_cache})`);
}
@@ -180,14 +192,15 @@ export async function load_ae_obj_li__event_session({
const cached_li = await query.toArray();
if (cached_li && cached_li.length > 0) {
if (log_lvl) console.log(`✅ [Trace] load_ae_obj_li: CACHE HIT (${cached_li.length} items).`);
const elapsed = (performance.now() - start_time).toFixed(2);
if (log_lvl) console.log(`✅ [Trace] load_ae_obj_li: CACHE HIT at ${elapsed}ms (${cached_li.length} items).`);
// Background refresh (non-blocking)
_refresh_session_li_background({ api_cfg, for_obj_type, for_obj_id, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, order_by_li, try_cache, log_lvl: log_lvl > 1 ? log_lvl : 0 });
return cached_li;
} else if (log_lvl) {
console.log(`⏳ [Trace] load_ae_obj_li: CACHE MISS for type=${for_obj_type} id=${for_obj_id}`);
console.log(`⏳ [Trace] load_ae_obj_li: CACHE MISS at ${(performance.now() - start_time).toFixed(2)}ms for type=${for_obj_type} id=${for_obj_id}`);
}
} catch (e) {
if (log_lvl) console.error(`❌ [Trace] load_ae_obj_li: Cache access error:`, e);
@@ -198,6 +211,7 @@ export async function load_ae_obj_li__event_session({
}
async function _refresh_session_li_background({ api_cfg, for_obj_type, for_obj_id, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, order_by_li, try_cache, log_lvl }: any) {
const start_time = performance.now();
if (typeof navigator !== 'undefined' && !navigator.onLine) return [];
try {
if (log_lvl) console.log(`📡 [Trace] _refresh_session_li: API Fetching for=${for_obj_type}:${for_obj_id}`);
@@ -205,7 +219,8 @@ async function _refresh_session_li_background({ api_cfg, for_obj_type, for_obj_i
if (result_li) {
const processed = await process_ae_obj__event_session_props({ obj_li: result_li, log_lvl });
if (log_lvl) console.log(`📦 [Trace] _refresh_session_li: Received ${processed.length} items from API.`);
const elapsed = (performance.now() - start_time).toFixed(2);
if (log_lvl) console.log(`📦 [Trace] _refresh_session_li: Received ${processed.length} items from API at ${elapsed}ms.`);
if (try_cache) {
await db_save_ae_obj_li__ae_obj({ db_instance: db_events, table_name: 'session', obj_li: processed, properties_to_save, log_lvl });

417
src/routes/events/[event_id]/(launcher)/launcher/+layout.svelte
View File

@@ -56,50 +56,27 @@
import Element_websocket_v2 from '$lib/elements/element_websocket_v2.svelte';
// *** Set initial variables
// Quickly save the data passed from the parent(s) to the Svelte stores, localStorage, and other.
// $slct.account_id = data.account_id;
// console.log(`$slct.account_id = `, $slct.account_id);
let ae_acct = data[$slct.account_id];
// console.log(`ae_acct = `, ae_acct);
import {
// devicePixelRatio,
// innerHeight,
// innerWidth,
online
// outerHeight,
// outerWidth,
// screenLeft,
// screenTop,
// scrollX,
// scrollY
} from 'svelte/reactivity/window';
// const online: ReactiveValue<boolean | undefined>;
$ae_sess.disable_sys_nav = true;
$ae_sess.disable_sys_header = true;
$ae_sess.disable_sys_footer = true;
// This is a just in case check...
if (!$events_loc?.launcher) {
$events_loc.launcher = {
app_mode: 'default',
controller: 'local',
controller_group_code: 'launcher-00',
ws_connect: false,
hide_drawer__cfg: true,
hide_drawer__debug: true
};
}
// svelte-ignore state_referenced_locally
if (log_lvl > 1) {
console.log(`$events_loc.launcher:`, $events_loc.launcher);
}
// svelte-ignore state_referenced_locally
if (log_lvl) {
console.log(`event_id: ${data.params.event_id}`);
console.log(`event_location_id: ${data.params.event_location_id}`);
@@ -115,164 +92,93 @@
$events_slct.event_device_id = native_dev.event_device_id || native_dev.id || native_dev.event_device_id_random || native_dev.id_random;
}
// console.log(`ae_acct.slct.event_id:`, ae_acct.slct.event_id);
// $events_slct.event_id = ae_acct.slct.event_id;
// $events_slct.event_obj = ae_acct.slct.event_obj;
$events_slct.event_location_obj_li = ae_acct.slct.event_location_obj_li ?? [''];
$events_slct.id_li__event_location = ae_acct.slct.id_li__event_location ?? [''];
// svelte-ignore state_referenced_locally
if (log_lvl > 1) {
console.log(`$events_slct.event_location_obj_li:`, $events_slct.event_location_obj_li);
console.log(`$events_slct.id_li__event_location:`, $events_slct.id_li__event_location);
}
// *** Functions and Logic
// Event
let lq__event_obj = $derived(
liveQuery(async () => {
if (log_lvl > 1) {
console.log(`lq__event_obj: event_id = ${$events_slct?.event_id}`);
let lq__event_obj = liveQuery(async () => {
const id = $events_slct?.event_id;
if (!id) return null;
if (log_lvl > 1) console.log(`lq__event_obj: event_id = ${id}`);
let results = await db_events.event.get(id);
if ($events_slct.event_obj && results) {
if (JSON.stringify($events_slct.event_obj) !== JSON.stringify(results)) {
$events_slct.event_obj = { ...results };
}
let results = await db_events.event.get($events_slct?.event_id ?? ''); // null or undefined does not reset things like '' does
// Check if results are different than the current session version stored under $events_slct
if ($events_slct.event_obj && results) {
if (JSON.stringify($events_slct.event_obj) !== JSON.stringify(results)) {
$events_slct.event_obj = { ...results };
if (log_lvl) {
console.log(
`Session slct stored version has changed for ID = ${$events_slct.event_id}`,
$events_slct.event_obj
);
}
}
}
return results;
})
);
}
return results;
});
// Event Device
let lq__event_device_obj = $derived(
liveQuery(async () => {
let results = await db_events.device.get($events_slct.event_device_id);
// Check if results are different than the current session version stored under $events_slct
if ($events_slct.event_device_obj && results) {
if (JSON.stringify($events_slct.event_device_obj) !== JSON.stringify(results)) {
$events_slct.event_device_obj = { ...results };
}
let lq__event_device_obj = liveQuery(async () => {
const id = $events_slct.event_device_id;
if (!id) return null;
let results = await db_events.device.get(id);
if ($events_slct.event_device_obj && results) {
if (JSON.stringify($events_slct.event_device_obj) !== JSON.stringify(results)) {
$events_slct.event_device_obj = { ...results };
}
return results;
})
);
}
return results;
});
// Event File - For Event
let lq__event_event_file_obj_li = $derived(
liveQuery(async () => {
let results = await db_events.file
.where('for_id')
.equals($events_slct.event_id ?? '')
.sortBy('filename');
return results;
})
);
let lq__event_event_file_obj_li = liveQuery(async () => {
const id = $events_slct.event_id;
if (!id) return [];
return await db_events.file.where('for_id').equals(id).sortBy('filename');
});
// Event File - For Location
let lq__location_event_file_obj_li = $derived(
liveQuery(async () => {
let results = await db_events.file
// .where('event_location_id')
.where('for_id')
.equals($events_slct.event_location_id ?? '')
.sortBy('filename');
return results;
})
);
let lq__location_event_file_obj_li = liveQuery(async () => {
const id = $events_slct.event_location_id;
if (!id) return [];
return await db_events.file.where('for_id').equals(id).sortBy('filename');
});
// Event Location
let lq__event_location_obj = $derived(
liveQuery(async () => {
let results = await db_events.location.get($events_slct.event_location_id);
let lq__event_location_obj = liveQuery(async () => {
const id = $events_slct.event_location_id;
if (!id) return null;
return await db_events.location.get(id);
});
return results;
})
);
let lq__event_location_obj_li = liveQuery(async () => {
const id = $events_slct.event_id;
if (!id) return [];
return await db_events.location.where('event_id').equals(id).sortBy('name');
});
let lq__event_location_obj_li = $derived(
liveQuery(async () => {
let results = await db_events.location
.where('event_id')
.equals($events_slct.event_id)
.sortBy('name');
// Event Session (Main View Trigger)
// Removed $derived wrapper to ensure stable observable subscription in Svelte 5
let lq__event_session_obj = liveQuery(async () => {
const id = $events_slct.event_session_id;
if (!id) return null;
if (log_lvl) console.log(`🔍 [Trace] Launcher Layout LQ: Fetching session_id=${id}`);
const start = performance.now();
let results = await db_events.session.get(id);
if (log_lvl) console.log(`📦 [Trace] Launcher Layout LQ: Result obtained in ${(performance.now() - start).toFixed(2)}ms (Result=${results?.name || 'NOT FOUND'})`);
return results;
});
return results;
})
);
let lq__event_session_obj_li = liveQuery(async () => {
const id = $events_slct.event_location_id;
if (!id) return [];
if (log_lvl > 1) console.log(`LQ - Using default sort for Event Session list location_id: ${id}`);
let results = await db_events.session
.where('event_location_id')
.equals(id)
.reverse()
.sortBy('name');
// Event Session
let lq__event_session_obj = $derived(
liveQuery(async () => {
if (log_lvl) console.log(`🔍 [Trace] Launcher Layout LQ: Fetching session_id=${$events_slct.event_session_id}`);
let results = await db_events.session.get($events_slct.event_session_id);
if (log_lvl) console.log(`📦 [Trace] Launcher Layout LQ: Result=`, results?.name || 'NOT FOUND');
return results;
})
);
let lq__event_session_obj_li = $derived(
liveQuery(async () => {
if ($events_sess.session_li_trigger && !$events_sess?.session_li) {
$events_sess.session_li = null;
$events_sess.session_li_trigger = false;
}
let results;
if ($events_sess?.session_li && $events_sess?.session_li?.length) {
// Pre-filtered list in session storage
} else if ($events_slct.event_location_id) {
if (log_lvl > 1) {
console.log(
`LQ - Using default sort for Event Session list location_id: ${$events_slct?.event_location_id}`
);
}
results = await db_events.session
.where('event_location_id')
.equals($events_slct.event_location_id)
.reverse()
.sortBy('name');
}
// Check if results are different than the current session version stored under $events_slct
if (
$events_slct.event_session_obj_li &&
JSON.stringify($events_slct.event_session_obj_li) !== JSON.stringify(results)
) {
$events_slct.event_session_obj_li = [...(results || [])];
}
return results;
})
);
// $: if (!$events_sess.launcher.modal__open) {
// if ($events_loc.launcher.controller == 'local_push' && $events_sess.launcher.ws_connect_status == 'connected') {
// console.log(`Local Push Controller Command: ae_close:event_file_modal`);
// $events_sess.launcher.controller_cmd = `ae_close:event_file_modal`;
// $events_sess.launcher.controller_trigger_send = true;
// }
// }
let ae_promises: key_val = {
slct_event_session_id: null,
slct_event_presentation_li: null
};
if ($events_slct.event_session_obj_li && JSON.stringify($events_slct.event_session_obj_li) !== JSON.stringify(results)) {
$events_slct.event_session_obj_li = [...(results || [])];
}
return results;
});
let trigger_handle_ws_conn = $state(false);
let trigger_handle_ws_recv = $state(false);
@@ -280,240 +186,133 @@
/* *** BEGIN *** Handle WebSocket events */
function handle_ws_conn(ws_conn_status: any) {
if (log_lvl) {
console.log('*** handle_ws_conn() ***', ws_conn_status);
}
if (log_lvl) console.log('*** handle_ws_conn() ***', ws_conn_status);
if (ws_conn_status.status == 'connected') {
$events_sess.launcher.ws = {}; // Reset WS related values on a new connection.
$events_sess.launcher.ws.status = 'connected';
$events_sess.launcher.ws = { status: 'connected' };
} else {
$events_sess.launcher.ws = {}; // Reset WS related values when disconnected connection.
$events_sess.launcher.ws.status = 'disconnected';
$events_sess.launcher.ws = { status: 'disconnected' };
}
$events_sess.launcher = $events_sess.launcher;
}
// This client received a WebSocket message.
// When this is called something seems to go wrong. It creates a loop when connected.
function handle_ws_recv(ws_recv_status: any) {
if (log_lvl) {
console.log('*** handle_ws_recv() ***', ws_recv_status);
}
if (log_lvl) console.log('*** handle_ws_recv() ***', ws_recv_status);
if (ws_recv_status.type == 'cmd' && ws_recv_status.cmd) {
let cmd = ws_recv_status.cmd;
// console.log(cmd);
if ($events_loc.launcher.controller != 'remote') return;
if ($events_loc.launcher.controller != 'remote') {
if (log_lvl) {
console.log(
'Ignoring WS command. Launcher is not set to be remotely controlled.',
cmd
);
}
return;
}
// AE Load (event session ID)
if (cmd.startsWith('ae_load:')) {
let cmd_parts = cmd.split(':');
let obj_parts = cmd_parts[1].split('=');
let obj_type = obj_parts[0];
let obj_id = obj_parts[1];
if (log_lvl) {
console.log(`ae_load: ${obj_type} ${obj_id}`);
}
if (obj_type == 'event_session') {
$events_slct.event_session_id = obj_id;
if (log_lvl) console.log(`[WS Trace] Current URL`, data.url);
let new_url = new URL(data.url);
new_url.pathname = `/events/${$lq__event_session_obj?.event_id}/launcher/${$lq__event_session_obj?.event_location_id}`;
new_url.searchParams.set('session_id', $events_slct.event_session_id);
if (log_lvl) console.log(`[WS Trace] New URL: ${new_url}`);
let new_url_str = new_url.toString();
goto(new_url_str, { replaceState: false });
goto(new_url.toString(), { replaceState: false });
}
// AE Download (event file ID)
// This does not yet work with the native app caching.
} else if (cmd.startsWith('ae_download:')) {
let cmd_parts = cmd.split(':');
let obj_parts = cmd_parts[1].split('=');
let obj_type = obj_parts[0];
let obj_id = obj_parts[1];
let obj_filename = cmd_parts[2];
let obj_extension = cmd_parts[3];
if (log_lvl) {
console.log(
`ae_download: ${obj_type} ${obj_id} ${obj_filename} ${obj_extension}`
);
}
ae_promises[obj_id] = api.download_hosted_file({
api.download_hosted_file({
api_cfg: $ae_api,
hosted_file_id: obj_id, // +'x'
hosted_file_id: obj_id,
return_file: true,
filename: `${obj_filename}`,
filename: obj_filename,
auto_download: true,
log_lvl: 1
});
// AE Open (event file ID)
} else if (cmd.startsWith('ae_open:')) {
let cmd_parts = cmd.split(':');
let obj_parts = cmd_parts[1].split('=');
let obj_type = obj_parts[0];
let obj_id = obj_parts[1];
if (log_lvl) {
console.log(`ae_open: ${obj_type} ${obj_id}`);
}
// NOTE: This is not finished yet.
if (obj_type == 'event_file') {
// We are assuming this is for digital posters and needs to be opened in the modal.
if (obj_parts[0] == 'event_file') {
$events_sess.launcher.modal__open_event_file_id = null;
clearInterval(idle_timer_interval);
saver_looping = false;
restartCountdown();
$events_slct.event_file_id = obj_id;
$events_sess.launcher.modal__title = $events_sess.launcher.modal__title ?? '*';
$events_sess.launcher.modal__open_event_file_id = $events_slct.event_file_id;
$events_sess.launcher.modal__open_event_file_id = obj_id;
}
// NOTE: This is not finished yet.
// AE Close (event file modal)
} else if (cmd.startsWith('ae_close:')) {
let cmd_parts = cmd.split(':');
let what = cmd_parts[1];
if (what == 'event_file_modal') {
$events_sess.launcher.modal__title = '';
if (cmd.split(':')[1] == 'event_file_modal') {
$events_sess.launcher.modal__open_event_file_id = null;
$events_sess.launcher.modal__event_file_obj = null;
}
clearInterval(idle_timer_interval);
saver_looping = false;
restartCountdown();
// WORKING! AE Refresh (now)
} else if (cmd.startsWith('ae_refresh:')) {
let cmd_parts = cmd.split(':');
let what = cmd_parts[1];
if (what == 'now') {
location.reload();
}
if (cmd.split(':')[1] == 'now') location.reload();
}
}
}
// This client sent a WebSocket message.
function handle_ws_sent(ws_sent_status: any) {
if (log_lvl) console.log('*** handle_ws_sent() ***', ws_sent_status);
$events_sess.launcher.controller_cmd = null;
$events_sess.launcher.controller_trigger_send = null;
}
/* *** END *** Handle WebSocket events */
$effect(() => {
if (trigger_handle_ws_conn) {
let ws_conn_status = trigger_handle_ws_conn; // This a string status
handle_ws_conn(trigger_handle_ws_conn);
trigger_handle_ws_conn = false;
handle_ws_conn(ws_conn_status);
}
});
$effect(() => {
if (trigger_handle_ws_recv) {
let ws_recv_status = trigger_handle_ws_recv; // This should be a key value object.
handle_ws_recv(trigger_handle_ws_recv);
trigger_handle_ws_recv = false;
handle_ws_recv(ws_recv_status);
}
});
$effect(() => {
if (trigger_handle_ws_sent) {
let ws_sent_status = trigger_handle_ws_sent; // This should be a key value object.
handle_ws_sent(trigger_handle_ws_sent);
trigger_handle_ws_sent = false;
handle_ws_sent(ws_sent_status);
}
});
if (!$events_loc.launcher.idle_timer) {
$events_loc.launcher.idle_timer = 5 * 60 * 1000;
}
if (!$events_loc.launcher.idle_cycle) {
$events_loc.launcher.idle_cycle = 5 * 1000;
}
if (!$events_loc.launcher.idle_loop_period) {
$events_loc.launcher.idle_loop_period = 3 * 60 * 1000;
}
if (!$events_loc.launcher.idle_timer) $events_loc.launcher.idle_timer = 5 * 60 * 1000;
if (!$events_loc.launcher.idle_cycle) $events_loc.launcher.idle_cycle = 5 * 1000;
if (!$events_loc.launcher.idle_loop_period) $events_loc.launcher.idle_loop_period = 3 * 60 * 1000;
listen({
timer: $events_loc.launcher.idle_timer,
cycle: $events_loc.launcher.idle_cycle ?? 5 * 1000
cycle: $events_loc.launcher.idle_cycle
});
let idle_timer_interval: any = $state();
let saver_looping: boolean = $state(false);
function handle_idle_client() {
// Start the digital poster screen saver after additional idle time.
if ($lq__event_session_obj && $lq__event_session_obj?.type_code == 'poster') {
if (log_lvl) {
console.log(
`Turned idle! Open poster file for poster session in ${($events_loc.launcher.idle_loop_period / 60000).toPrecision(4)} minutes.`
);
}
if (saver_looping) return false;
saver_looping = true;
idle_timer_interval = setInterval(
() => {
if (log_lvl) {
console.log(
`Screen saver tick every ${($events_loc.launcher.idle_loop_period / 60000).toPrecision(4)} minutes after initially being idle for ${($events_loc.launcher.idle_timer / 60000).toPrecision(4)} minutes.`
);
}
idle_timer_interval = setInterval(() => {
if ($events_loc.launcher.screen_saver_img_kv) {
const keys = Object.keys($events_loc.launcher.screen_saver_img_kv);
const rand_index = Math.floor(Math.random() * keys.length);
let event_file_obj = $events_loc.launcher.screen_saver_img_kv[keys[rand_index]];
if ($events_loc.launcher.screen_saver_img_kv) {
const rand_index = Math.floor(
Math.random() *
Object.keys($events_loc.launcher.screen_saver_img_kv).length
);
let event_file_obj =
$events_loc.launcher.screen_saver_img_kv[
Object.keys($events_loc.launcher.screen_saver_img_kv)[rand_index]
];
$events_slct.event_file_id = event_file_obj.event_file_id;
$events_slct.event_file_obj = event_file_obj;
$events_sess.launcher.modal__open_event_file_id = null;
$events_sess.launcher.modal__title = event_file_obj.filename ?? '*';
$events_sess.launcher.modal__open_event_file_id =
$events_slct.event_file_id;
$events_sess.launcher.modal__event_file_obj = event_file_obj;
return true;
}
return false;
},
$events_loc.launcher.idle_loop_period ?? 2 * 60 * 1000
);
$events_slct.event_file_id = event_file_obj.event_file_id;
$events_slct.event_file_obj = event_file_obj;
$events_sess.launcher.modal__open_event_file_id = null;
$events_sess.launcher.modal__title = event_file_obj.filename ?? '*';
$events_sess.launcher.modal__open_event_file_id = $events_slct.event_file_id;
$events_sess.launcher.modal__event_file_obj = event_file_obj;
return true;
}
return false;
}, $events_loc.launcher.idle_loop_period ?? 2 * 60 * 1000);
} else {
saver_looping = false;
return false;
@@ -521,24 +320,12 @@
}
onIdle(() => {
if (log_lvl) {
console.log(
`User has gone idle after ${($events_loc.launcher?.idle_timer / 60000).toPrecision(4)} minutes.`,
$idle
);
}
clearInterval(idle_timer_interval);
handle_idle_client();
});
$effect(() => {
if (!$idle) {
if (log_lvl > 1) {
console.log(
`User is active again after being idle. End screen saver if active.`,
$idle
);
}
clearInterval(idle_timer_interval);
saver_looping = false;
}

17
src/routes/events/[event_id]/(launcher)/menu_session_list.svelte
View File

@@ -65,6 +65,7 @@
$effect(() => {
if (trigger_reload__event_session_obj_id) {
const start = performance.now();
if (log_lvl) {
console.log(
`[UI Trace] trigger_reload__event_session_obj_id changed: ${trigger_reload__event_session_obj_id}`
@@ -72,9 +73,12 @@
}
let event_session_id = String(trigger_reload__event_session_obj_id);
trigger_reload__event_session_obj_id = false;
// OPTIMIZATION: Update slct__event_session_id prop (which is bound to the store)
// BEFORE calling goto. This triggers the LiveQuery in the layout instantly.
slct__event_session_id = event_session_id;
if (log_lvl) console.log(`[UI Trace] UI setting slct__event_session_id = ${slct__event_session_id}`);
if (log_lvl) console.log(`[UI Trace] UI setting slct__event_session_id = ${slct__event_session_id} (+${(performance.now() - start).toFixed(2)}ms)`);
handle_load_ae_obj_id__event_session(event_session_id);
@@ -87,12 +91,17 @@
data_url.searchParams.set('session_id', event_session_id);
let new_url = data_url.toString();
if (log_lvl) console.log(`[UI Trace] Updating URL to: ${new_url}`);
goto(new_url, { replaceState: false });
if (log_lvl) console.log(`[UI Trace] Initiating SvelteKit goto... (+${(performance.now() - start).toFixed(2)}ms)`);
// Use noscroll and keepfocus to speed up the transition
goto(new_url, { replaceState: false, noscroll: true, keepfocus: true }).then(() => {
if (log_lvl) console.log(`🏁 [Trace] Total Navigation Roundtrip: ${(performance.now() - start).toFixed(2)}ms`);
});
}
});
function handle_load_ae_obj_id__event_session(event_session_id: any) {
const start = performance.now();
if (log_lvl) {
console.log(
`[UI Trace] handle_load_ae_obj_id__event_session: Calling library for id=${event_session_id}`
@@ -111,7 +120,7 @@
log_lvl: log_lvl
})
.then(async (load_results) => {
if (log_lvl) console.log(`[UI Trace] handle_load_ae_obj_id: Library returned results.`, load_results);
if (log_lvl) console.log(`[UI Trace] handle_load_ae_obj_id: Library returned results in ${(performance.now() - start).toFixed(2)}ms.`);
if (load_results) {
$events_slct.event_session_obj = load_results;