| 1 | /**
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| 2 | * @license React
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| 3 | * scheduler.native.development.js
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| 4 | *
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| 5 | * Copyright (c) Meta Platforms, Inc. and affiliates.
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| 6 | *
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| 7 | * This source code is licensed under the MIT license found in the
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| 8 | * LICENSE file in the root directory of this source tree.
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| 9 | */
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| 10 |
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| 11 | "use strict";
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| 12 | "production" !== process.env.NODE_ENV &&
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| 13 | (function () {
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| 14 | function performWorkUntilDeadline() {
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| 15 | needsPaint = !1;
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| 16 | if (isMessageLoopRunning) {
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| 17 | var currentTime = getCurrentTime();
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| 18 | startTime = currentTime;
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| 19 | var hasMoreWork = !0;
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| 20 | try {
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| 21 | a: {
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| 22 | isHostCallbackScheduled = !1;
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| 23 | isHostTimeoutScheduled &&
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| 24 | ((isHostTimeoutScheduled = !1),
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| 25 | localClearTimeout(taskTimeoutID),
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| 26 | (taskTimeoutID = -1));
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| 27 | isPerformingWork = !0;
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| 28 | var previousPriorityLevel = currentPriorityLevel;
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| 29 | try {
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| 30 | b: {
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| 31 | advanceTimers(currentTime);
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| 32 | for (
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| 33 | currentTask = peek(taskQueue);
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| 34 | null !== currentTask &&
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| 35 | !(
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| 36 | currentTask.expirationTime > currentTime &&
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| 37 | shouldYieldToHost()
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| 38 | );
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| 39 |
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| 40 | ) {
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| 41 | var callback = currentTask.callback;
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| 42 | if ("function" === typeof callback) {
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| 43 | currentTask.callback = null;
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| 44 | currentPriorityLevel = currentTask.priorityLevel;
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| 45 | var continuationCallback = callback(
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| 46 | currentTask.expirationTime <= currentTime
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| 47 | );
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| 48 | currentTime = getCurrentTime();
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| 49 | if ("function" === typeof continuationCallback) {
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| 50 | currentTask.callback = continuationCallback;
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| 51 | advanceTimers(currentTime);
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| 52 | hasMoreWork = !0;
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| 53 | break b;
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| 54 | }
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| 55 | currentTask === peek(taskQueue) && pop(taskQueue);
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| 56 | advanceTimers(currentTime);
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| 57 | } else pop(taskQueue);
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| 58 | currentTask = peek(taskQueue);
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| 59 | }
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| 60 | if (null !== currentTask) hasMoreWork = !0;
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| 61 | else {
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| 62 | var firstTimer = peek(timerQueue);
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| 63 | null !== firstTimer &&
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| 64 | requestHostTimeout(
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| 65 | handleTimeout,
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| 66 | firstTimer.startTime - currentTime
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| 67 | );
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| 68 | hasMoreWork = !1;
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| 69 | }
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| 70 | }
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| 71 | break a;
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| 72 | } finally {
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| 73 | (currentTask = null),
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| 74 | (currentPriorityLevel = previousPriorityLevel),
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| 75 | (isPerformingWork = !1);
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| 76 | }
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| 77 | hasMoreWork = void 0;
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| 78 | }
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| 79 | } finally {
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| 80 | hasMoreWork
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| 81 | ? schedulePerformWorkUntilDeadline()
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| 82 | : (isMessageLoopRunning = !1);
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| 83 | }
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| 84 | }
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| 85 | }
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| 86 | function push(heap, node) {
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| 87 | var index = heap.length;
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| 88 | heap.push(node);
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| 89 | a: for (; 0 < index; ) {
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| 90 | var parentIndex = (index - 1) >>> 1,
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| 91 | parent = heap[parentIndex];
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| 92 | if (0 < compare(parent, node))
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| 93 | (heap[parentIndex] = node),
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| 94 | (heap[index] = parent),
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| 95 | (index = parentIndex);
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| 96 | else break a;
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| 97 | }
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| 98 | }
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| 99 | function peek(heap) {
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| 100 | return 0 === heap.length ? null : heap[0];
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| 101 | }
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| 102 | function pop(heap) {
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| 103 | if (0 === heap.length) return null;
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| 104 | var first = heap[0],
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| 105 | last = heap.pop();
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| 106 | if (last !== first) {
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| 107 | heap[0] = last;
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| 108 | a: for (
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| 109 | var index = 0, length = heap.length, halfLength = length >>> 1;
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| 110 | index < halfLength;
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| 111 |
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| 112 | ) {
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| 113 | var leftIndex = 2 * (index + 1) - 1,
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| 114 | left = heap[leftIndex],
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| 115 | rightIndex = leftIndex + 1,
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| 116 | right = heap[rightIndex];
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| 117 | if (0 > compare(left, last))
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| 118 | rightIndex < length && 0 > compare(right, left)
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| 119 | ? ((heap[index] = right),
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| 120 | (heap[rightIndex] = last),
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| 121 | (index = rightIndex))
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| 122 | : ((heap[index] = left),
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| 123 | (heap[leftIndex] = last),
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| 124 | (index = leftIndex));
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| 125 | else if (rightIndex < length && 0 > compare(right, last))
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| 126 | (heap[index] = right),
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| 127 | (heap[rightIndex] = last),
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| 128 | (index = rightIndex);
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| 129 | else break a;
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| 130 | }
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| 131 | }
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| 132 | return first;
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| 133 | }
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| 134 | function compare(a, b) {
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| 135 | var diff = a.sortIndex - b.sortIndex;
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| 136 | return 0 !== diff ? diff : a.id - b.id;
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| 137 | }
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| 138 | function advanceTimers(currentTime) {
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| 139 | for (var timer = peek(timerQueue); null !== timer; ) {
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| 140 | if (null === timer.callback) pop(timerQueue);
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| 141 | else if (timer.startTime <= currentTime)
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| 142 | pop(timerQueue),
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| 143 | (timer.sortIndex = timer.expirationTime),
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| 144 | push(taskQueue, timer);
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| 145 | else break;
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| 146 | timer = peek(timerQueue);
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| 147 | }
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| 148 | }
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| 149 | function handleTimeout(currentTime) {
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| 150 | isHostTimeoutScheduled = !1;
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| 151 | advanceTimers(currentTime);
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| 152 | if (!isHostCallbackScheduled)
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| 153 | if (null !== peek(taskQueue))
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| 154 | (isHostCallbackScheduled = !0),
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| 155 | isMessageLoopRunning ||
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| 156 | ((isMessageLoopRunning = !0), schedulePerformWorkUntilDeadline());
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| 157 | else {
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| 158 | var firstTimer = peek(timerQueue);
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| 159 | null !== firstTimer &&
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| 160 | requestHostTimeout(
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| 161 | handleTimeout,
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| 162 | firstTimer.startTime - currentTime
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| 163 | );
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| 164 | }
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| 165 | }
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| 166 | function unstable_scheduleCallback$1(priorityLevel, callback, options) {
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| 167 | var currentTime = getCurrentTime();
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| 168 | "object" === typeof options && null !== options
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| 169 | ? ((options = options.delay),
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| 170 | (options =
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| 171 | "number" === typeof options && 0 < options
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| 172 | ? currentTime + options
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| 173 | : currentTime))
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| 174 | : (options = currentTime);
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| 175 | switch (priorityLevel) {
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| 176 | case 1:
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| 177 | var timeout = -1;
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| 178 | break;
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| 179 | case 2:
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| 180 | timeout = 250;
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| 181 | break;
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| 182 | case 5:
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| 183 | timeout = 1073741823;
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| 184 | break;
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| 185 | case 4:
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| 186 | timeout = 1e4;
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| 187 | break;
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| 188 | default:
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| 189 | timeout = 5e3;
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| 190 | }
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| 191 | timeout = options + timeout;
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| 192 | priorityLevel = {
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| 193 | id: taskIdCounter++,
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| 194 | callback: callback,
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| 195 | priorityLevel: priorityLevel,
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| 196 | startTime: options,
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| 197 | expirationTime: timeout,
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| 198 | sortIndex: -1
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| 199 | };
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| 200 | options > currentTime
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| 201 | ? ((priorityLevel.sortIndex = options),
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| 202 | push(timerQueue, priorityLevel),
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| 203 | null === peek(taskQueue) &&
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| 204 | priorityLevel === peek(timerQueue) &&
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| 205 | (isHostTimeoutScheduled
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| 206 | ? (localClearTimeout(taskTimeoutID), (taskTimeoutID = -1))
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| 207 | : (isHostTimeoutScheduled = !0),
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| 208 | requestHostTimeout(handleTimeout, options - currentTime)))
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| 209 | : ((priorityLevel.sortIndex = timeout),
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| 210 | push(taskQueue, priorityLevel),
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| 211 | isHostCallbackScheduled ||
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| 212 | isPerformingWork ||
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| 213 | ((isHostCallbackScheduled = !0),
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| 214 | isMessageLoopRunning ||
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| 215 | ((isMessageLoopRunning = !0),
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| 216 | schedulePerformWorkUntilDeadline())));
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| 217 | return priorityLevel;
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| 218 | }
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| 219 | function unstable_cancelCallback$1(task) {
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| 220 | task.callback = null;
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| 221 | }
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| 222 | function unstable_getCurrentPriorityLevel$1() {
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| 223 | return currentPriorityLevel;
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| 224 | }
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| 225 | function shouldYieldToHost() {
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| 226 | return needsPaint
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| 227 | ? !0
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| 228 | : getCurrentTime() - startTime < frameInterval
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| 229 | ? !1
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| 230 | : !0;
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| 231 | }
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| 232 | function requestPaint() {
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| 233 | needsPaint = !0;
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| 234 | }
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| 235 | function requestHostTimeout(callback, ms) {
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| 236 | taskTimeoutID = localSetTimeout(function () {
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| 237 | callback(getCurrentTime());
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| 238 | }, ms);
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| 239 | }
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| 240 | function throwNotImplemented() {
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| 241 | throw Error("Not implemented.");
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| 242 | }
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| 243 | if (
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| 244 | "object" === typeof performance &&
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| 245 | "function" === typeof performance.now
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| 246 | ) {
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| 247 | var localPerformance = performance;
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| 248 | var getCurrentTime = function () {
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| 249 | return localPerformance.now();
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| 250 | };
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| 251 | } else {
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| 252 | var localDate = Date,
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| 253 | initialTime = localDate.now();
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| 254 | getCurrentTime = function () {
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| 255 | return localDate.now() - initialTime;
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| 256 | };
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| 257 | }
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| 258 | var taskQueue = [],
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| 259 | timerQueue = [],
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| 260 | taskIdCounter = 1,
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| 261 | currentTask = null,
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| 262 | currentPriorityLevel = 3,
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| 263 | isPerformingWork = !1,
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| 264 | isHostCallbackScheduled = !1,
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| 265 | isHostTimeoutScheduled = !1,
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| 266 | needsPaint = !1,
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| 267 | localSetTimeout = "function" === typeof setTimeout ? setTimeout : null,
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| 268 | localClearTimeout =
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| 269 | "function" === typeof clearTimeout ? clearTimeout : null,
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| 270 | localSetImmediate =
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| 271 | "undefined" !== typeof setImmediate ? setImmediate : null,
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| 272 | isMessageLoopRunning = !1,
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| 273 | taskTimeoutID = -1,
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| 274 | frameInterval = 5,
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| 275 | startTime = -1;
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| 276 | if ("function" === typeof localSetImmediate)
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| 277 | var schedulePerformWorkUntilDeadline = function () {
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| 278 | localSetImmediate(performWorkUntilDeadline);
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| 279 | };
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| 280 | else if ("undefined" !== typeof MessageChannel) {
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| 281 | var channel = new MessageChannel(),
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| 282 | port = channel.port2;
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| 283 | channel.port1.onmessage = performWorkUntilDeadline;
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| 284 | schedulePerformWorkUntilDeadline = function () {
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| 285 | port.postMessage(null);
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| 286 | };
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| 287 | } else
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| 288 | schedulePerformWorkUntilDeadline = function () {
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| 289 | localSetTimeout(performWorkUntilDeadline, 0);
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| 290 | };
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| 291 | channel =
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| 292 | "undefined" !== typeof nativeRuntimeScheduler
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| 293 | ? nativeRuntimeScheduler.unstable_UserBlockingPriority
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| 294 | : 2;
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| 295 | var unstable_NormalPriority =
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| 296 | "undefined" !== typeof nativeRuntimeScheduler
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| 297 | ? nativeRuntimeScheduler.unstable_NormalPriority
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| 298 | : 3,
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| 299 | unstable_LowPriority =
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| 300 | "undefined" !== typeof nativeRuntimeScheduler
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| 301 | ? nativeRuntimeScheduler.unstable_LowPriority
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| 302 | : 4,
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| 303 | unstable_ImmediatePriority =
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| 304 | "undefined" !== typeof nativeRuntimeScheduler
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| 305 | ? nativeRuntimeScheduler.unstable_ImmediatePriority
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| 306 | : 1,
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| 307 | unstable_scheduleCallback =
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| 308 | "undefined" !== typeof nativeRuntimeScheduler
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| 309 | ? nativeRuntimeScheduler.unstable_scheduleCallback
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| 310 | : unstable_scheduleCallback$1,
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| 311 | unstable_cancelCallback =
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| 312 | "undefined" !== typeof nativeRuntimeScheduler
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| 313 | ? nativeRuntimeScheduler.unstable_cancelCallback
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| 314 | : unstable_cancelCallback$1,
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| 315 | unstable_getCurrentPriorityLevel =
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| 316 | "undefined" !== typeof nativeRuntimeScheduler
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| 317 | ? nativeRuntimeScheduler.unstable_getCurrentPriorityLevel
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| 318 | : unstable_getCurrentPriorityLevel$1,
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| 319 | unstable_shouldYield =
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| 320 | "undefined" !== typeof nativeRuntimeScheduler
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| 321 | ? nativeRuntimeScheduler.unstable_shouldYield
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| 322 | : shouldYieldToHost,
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| 323 | unstable_requestPaint =
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| 324 | "undefined" !== typeof nativeRuntimeScheduler
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| 325 | ? nativeRuntimeScheduler.unstable_requestPaint
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| 326 | : requestPaint,
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| 327 | unstable_now =
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| 328 | "undefined" !== typeof nativeRuntimeScheduler
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| 329 | ? nativeRuntimeScheduler.unstable_now
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| 330 | : getCurrentTime;
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| 331 | exports.unstable_IdlePriority =
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| 332 | "undefined" !== typeof nativeRuntimeScheduler
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| 333 | ? nativeRuntimeScheduler.unstable_IdlePriority
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| 334 | : 5;
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| 335 | exports.unstable_ImmediatePriority = unstable_ImmediatePriority;
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| 336 | exports.unstable_LowPriority = unstable_LowPriority;
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| 337 | exports.unstable_NormalPriority = unstable_NormalPriority;
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| 338 | exports.unstable_Profiling = null;
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| 339 | exports.unstable_UserBlockingPriority = channel;
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| 340 | exports.unstable_cancelCallback = unstable_cancelCallback;
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| 341 | exports.unstable_forceFrameRate = throwNotImplemented;
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| 342 | exports.unstable_getCurrentPriorityLevel = unstable_getCurrentPriorityLevel;
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| 343 | exports.unstable_next = throwNotImplemented;
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| 344 | exports.unstable_now = unstable_now;
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| 345 | exports.unstable_requestPaint = unstable_requestPaint;
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| 346 | exports.unstable_runWithPriority = throwNotImplemented;
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| 347 | exports.unstable_scheduleCallback = unstable_scheduleCallback;
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| 348 | exports.unstable_shouldYield = unstable_shouldYield;
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| 349 | exports.unstable_wrapCallback = throwNotImplemented;
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| 350 | })();
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