All files / src/internal/client/dom task.js

100% Statements 64/64
90.9% Branches 10/11
100% Functions 6/6
100% Lines 63/63

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 642x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 863x 863x 863x 863x 863x 863x 2x 252x 252x 252x 252x 252x 252x 2x 2x 2x 2x 2x 1124x 514x 514x 514x 1124x 1124x 2x 2x 2x 2x 2x 338x 126x 126x 126x 338x 338x 2x 2x 2x 2x 2x 15850x 349x 349x 15850x 126x 126x 15850x  
import { run_all } from '../../shared/utils.js';
 
// Fallback for when requestIdleCallback is not available
const request_idle_callback =
	typeof requestIdleCallback === 'undefined'
		? (/** @type {() => void} */ cb) => setTimeout(cb, 1)
		: requestIdleCallback;
 
let is_micro_task_queued = false;
let is_idle_task_queued = false;
 
/** @type {Array<() => void>} */
let current_queued_micro_tasks = [];
/** @type {Array<() => void>} */
let current_queued_idle_tasks = [];
 
function process_micro_tasks() {
	is_micro_task_queued = false;
	const tasks = current_queued_micro_tasks.slice();
	current_queued_micro_tasks = [];
	run_all(tasks);
}
 
function process_idle_tasks() {
	is_idle_task_queued = false;
	const tasks = current_queued_idle_tasks.slice();
	current_queued_idle_tasks = [];
	run_all(tasks);
}
 
/**
 * @param {() => void} fn
 */
export function queue_micro_task(fn) {
	if (!is_micro_task_queued) {
		is_micro_task_queued = true;
		queueMicrotask(process_micro_tasks);
	}
	current_queued_micro_tasks.push(fn);
}
 
/**
 * @param {() => void} fn
 */
export function queue_idle_task(fn) {
	if (!is_idle_task_queued) {
		is_idle_task_queued = true;
		request_idle_callback(process_idle_tasks);
	}
	current_queued_idle_tasks.push(fn);
}
 
/**
 * Synchronously run any queued tasks.
 */
export function flush_tasks() {
	if (is_micro_task_queued) {
		process_micro_tasks();
	}
	if (is_idle_task_queued) {
		process_idle_tasks();
	}
}