fix(core): [CORE-24] preserve source playback intent and explicit pauses

2026-10-08 10:56:15 -08:00 · 2026-09-12 03:26:26 +08:00
1 parent b5e96664ee
commit 0218196df9
@@ -67,4 +67,4 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
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@@ -67,4 +67,4 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
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@@ -2096,6 +2096,22 @@ function playAndPause(option) {
 const current = /* @__PURE__ */ new WeakMap();
 const assignments = /* @__PURE__ */ new WeakMap();
 const sources = /* @__PURE__ */ new WeakMap();
+function sourcePlaybackIntent(owner) {
+  const operation = current.get(owner);
+  return operation?.active() ? operation.resumePlaying : void 0;
+}
+function requestSourcePlayback(owner, playing) {
+  const operation = current.get(owner);
+  if (!operation?.active() || operation.resumePlaying === void 0)
+    return;
+  if (!playing && operation.internalPause) {
+    operation.internalPause = false;
+  } else {
+    operation.resumePlaying = playing;
+    if (!playing)
+      operation.pauseRevision++;
+  }
+}
 function getSourceScope(owner) {
  return sources.get(owner) || getScope(owner);
 }
@@ -2104,6 +2120,12 @@ function captureSource(owner) {
  const source = sources.get(owner);
  return () => current.get(owner) === operation && (!operation || operation.active()) && sources.get(owner) === source && (!source || !source.closed);
 }
+function captureSourcePlayback(owner) {
+  const active2 = captureSource(owner);
+  const operation = current.get(owner);
+  const revision = operation?.pauseRevision;
+  return () => active2() && operation?.pauseRevision === revision;
+}
 function beginSource(owner) {
  const previous = sources.get(owner);
  const source = getScope(owner).child();
@@ -2117,6 +2139,7 @@ function beginSource(owner) {
    scope,
    assigned: false,
    acceptingEvents: false,
+    pauseRevision: 0,
    active: () => !isClosing(owner) && !scope.closed && current.get(owner) === operation
  };
  current.set(owner, operation);
@@ -5713,6 +5736,7 @@ function pauseMix(art) {
  } = art;
  def(art, "pause", {
    value() {
+      requestSourcePlayback(art, false);
      const result = $video.pause();
      notice.show = i18n.get("Pause");
      art.emit("pause");
@@ -5960,7 +5984,8 @@ function playMix(art) {
  } = art;
  def(art, "play", {
    async value() {
-      const active2 = captureSource(art);
+      requestSourcePlayback(art, true);
+      const active2 = captureSourcePlayback(art);
      const result = await $video.play();
      if (!active2())
        return result;
@@ -6203,13 +6228,16 @@ function switchSource(art, url, currentTime) {
      resolve();
      return;
    }
+    const playing = sourcePlaybackIntent(art) ?? art.playing;
    const operation = beginSource(art);
+    operation.resumePlaying = playing;
    const scope = operation.scope.child();
    let settled = false;
    const settle = (failed = false, error2) => {
      if (settled)
        return;
      settled = true;
+      operation.resumePlaying = void 0;
      operation.onError = void 0;
      operation.onAssigned = void 0;
      scope.dispose();
@@ -6227,8 +6255,13 @@ function switchSource(art, url, currentTime) {
    const fail = (error2) => settle(true, error2);
    operation.onError = fail;
    try {
-      const { playing, aspectRatio: aspectRatio2, playbackRate: playbackRate2 } = art;
-      art.pause();
+      const { aspectRatio: aspectRatio2, playbackRate: playbackRate2 } = art;
+      operation.internalPause = true;
+      try {
+        art.pause();
+      } finally {
+        operation.internalPause = false;
+      }
      if (!active2())
        return;
      const readiness = scope.child();
@@ -6237,10 +6270,11 @@ function switchSource(art, url, currentTime) {
      let rateRestored = false;
      const position = positionRestoration(art, currentTime, active2);
      const resume = async () => {
+        const pauseRevision = operation.pauseRevision;
        art.aspectRatio = aspectRatio2;
        if (!active2())
          return;
-        if (playing) {
+        if (operation.resumePlaying) {
          try {
            await art.play();
          } catch {
@@ -6248,7 +6282,8 @@ function switchSource(art, url, currentTime) {
        }
        if (!active2())
          return;
-        art.notice.show = "";
+        if (operation.pauseRevision === pauseRevision)
+          art.notice.show = "";
        settle();
      };
      const resumeWhenReady = () => {
@@ -260,6 +260,17 @@ twice. media/position-revision.ts also tracks legal public currentTime writes;
 a consumer assigning currentTime directly during loading supersedes the automatic
 restoration, including writes before metadata. Invalid NaN assignments remain no-ops.
 Source cancellation still settles pending work and removes all listeners.
+CORE-24 keeps the desired playback state on the pending source operation. A new switch inherits
+that intent before disposing its predecessor; it must not infer the user's intent from the
+temporary native pause performed by the previous switch. playMix/pauseMix update intent at
+command entry, before native calls or public callbacks can reenter. The switch's internal pause
+consumes one marker; subsequent explicit pauses remain effective, including inside callbacks.
+The pause revision invalidates late play notifications and prevents an old resume from clearing
+a newer pause notice. It does not change the public play promise's original value or rejection.
+Completed, failed or cancelled operations cannot lend intent to a later independent source.
+Do not replace these command hooks with late event listeners: an earlier user pause listener
+may synchronously start another switch. See test/source.test.js, test/browser/source-intent.spec.js
+and refactor/changes/2026-09-12-CORE-24-source-intent.md for the regressions and validation scope.
 Use test/source.test.js, test/progress.test.js and the browser source and
 progress-quality specs. Keep native media events in evidence when changing this
 sequence; the original rate-interruption hypothesis was not sufficient to explain
@@ -67,4 +67,4 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
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@@ -67,4 +67,4 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
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n(t){return t.constructor?t.constructor.name:null}function o(t,e){var n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:["option"];return i(t,e,n),a(t,e,n),function(t,e,n){var s=r(e),l=r(t);if("object"===s){if("object"!==l)throw new Error("[Type Error]: '".concat(n.join("."),"' require 'object' type, but got '").concat(l,"'"));Object.keys(e).forEach(function(r){var s=t[r],l=e[r],c=n.slice();c.push(r),i(s,l,c),a(s,l,c),o(s,l,c)})}if("array"===s){if("array"!==l)throw new Error("[Type Error]: '".concat(n.join("."),"' require 'array' type, but got '").concat(l,"'"));t.forEach(function(r,s){var l=t[s],c=e[s]||e[0],d=n.slice();d.push(s),i(l,c,d),a(l,c,d),o(l,c,d)})}}(t,e,n),t}function i(t,e,n){if("string"===r(e)){var o=r(t);if("?"===e[0]&&(e=e.slice(1)+"|undefined"),!(-1<e.indexOf("|")?e.split("|").map(function(t){return t.toLowerCase().trim()}).filter(Boolean).some(function(t){return o===t}):e.toLowerCase().trim()===o))throw new Error("[Type Error]: '".concat(n.join("."),"' require '").concat(e,"' type, but got '").concat(o,"'"))}}function a(t,e,n){if("function"===r(e)){var o=e(t,r(t),n);if(!0!==o){var i=r(o);throw"string"===i?new Error(o):"error"===i?o:new Error("[Validator Error]: The scheme for '".concat(n.join("."),"' validator require return true, but got '").concat(o,"'"))}}}return o.kindOf=r,o}()),p.exports);const h=d(f),m="5.4.1";function v(t,e){let r=document.getElementById(t);r||(r=document.createElement("style"),r.id=t,"loading"===document.readyState?document.addEventListener("DOMContentLoaded",()=>{document.head.apLine truncated
@@ -2096,6 +2096,22 @@ function playAndPause(option) {
 const current = /* @__PURE__ */ new WeakMap();
 const assignments = /* @__PURE__ */ new WeakMap();
 const sources = /* @__PURE__ */ new WeakMap();
+function sourcePlaybackIntent(owner) {
+  const operation = current.get(owner);
+  return operation?.active() ? operation.resumePlaying : void 0;
+}
+function requestSourcePlayback(owner, playing) {
+  const operation = current.get(owner);
+  if (!operation?.active() || operation.resumePlaying === void 0)
+    return;
+  if (!playing && operation.internalPause) {
+    operation.internalPause = false;
+  } else {
+    operation.resumePlaying = playing;
+    if (!playing)
+      operation.pauseRevision++;
+  }
+}
 function getSourceScope(owner) {
  return sources.get(owner) || getScope(owner);
 }
@@ -2104,6 +2120,12 @@ function captureSource(owner) {
  const source = sources.get(owner);
  return () => current.get(owner) === operation && (!operation || operation.active()) && sources.get(owner) === source && (!source || !source.closed);
 }
+function captureSourcePlayback(owner) {
+  const active2 = captureSource(owner);
+  const operation = current.get(owner);
+  const revision = operation?.pauseRevision;
+  return () => active2() && operation?.pauseRevision === revision;
+}
 function beginSource(owner) {
  const previous = sources.get(owner);
  const source = getScope(owner).child();
@@ -2117,6 +2139,7 @@ function beginSource(owner) {
    scope,
    assigned: false,
    acceptingEvents: false,
+    pauseRevision: 0,
    active: () => !isClosing(owner) && !scope.closed && current.get(owner) === operation
  };
  current.set(owner, operation);
@@ -5713,6 +5736,7 @@ function pauseMix(art) {
  } = art;
  def(art, "pause", {
    value() {
+      requestSourcePlayback(art, false);
      const result = $video.pause();
      notice.show = i18n.get("Pause");
      art.emit("pause");
@@ -5960,7 +5984,8 @@ function playMix(art) {
  } = art;
  def(art, "play", {
    async value() {
-      const active2 = captureSource(art);
+      requestSourcePlayback(art, true);
+      const active2 = captureSourcePlayback(art);
      const result = await $video.play();
      if (!active2())
        return result;
@@ -6203,13 +6228,16 @@ function switchSource(art, url, currentTime) {
      resolve();
      return;
    }
+    const playing = sourcePlaybackIntent(art) ?? art.playing;
    const operation = beginSource(art);
+    operation.resumePlaying = playing;
    const scope = operation.scope.child();
    let settled = false;
    const settle = (failed = false, error2) => {
      if (settled)
        return;
      settled = true;
+      operation.resumePlaying = void 0;
      operation.onError = void 0;
      operation.onAssigned = void 0;
      scope.dispose();
@@ -6227,8 +6255,13 @@ function switchSource(art, url, currentTime) {
    const fail = (error2) => settle(true, error2);
    operation.onError = fail;
    try {
-      const { playing, aspectRatio: aspectRatio2, playbackRate: playbackRate2 } = art;
-      art.pause();
+      const { aspectRatio: aspectRatio2, playbackRate: playbackRate2 } = art;
+      operation.internalPause = true;
+      try {
+        art.pause();
+      } finally {
+        operation.internalPause = false;
+      }
      if (!active2())
        return;
      const readiness = scope.child();
@@ -6237,10 +6270,11 @@ function switchSource(art, url, currentTime) {
      let rateRestored = false;
      const position = positionRestoration(art, currentTime, active2);
      const resume = async () => {
+        const pauseRevision = operation.pauseRevision;
        art.aspectRatio = aspectRatio2;
        if (!active2())
          return;
-        if (playing) {
+        if (operation.resumePlaying) {
          try {
            await art.play();
          } catch {
@@ -6248,7 +6282,8 @@ function switchSource(art, url, currentTime) {
        }
        if (!active2())
          return;
-        art.notice.show = "";
+        if (operation.pauseRevision === pauseRevision)
+          art.notice.show = "";
        settle();
      };
      const resumeWhenReady = () => {
@@ -1,5 +1,6 @@
 import type { PauseHost } from '../media/hosts'
 import type { PlaybackMethods } from '../media/types'
+import { requestSourcePlayback } from '../source/operation'
 import { def } from '../utils'

 export default function pauseMix<Media extends Pick<PlaybackMethods, 'pause'>>(art: PauseHost<Media>): asserts art is PauseHost<Media> & { pause: () => ReturnType<Media['pause']> } {
@@ -11,6 +12,7 @@ export default function pauseMix<Media extends Pick<PlaybackMethods, 'pause'>>(a

  def(art, 'pause', {
    value() {
+      requestSourcePlayback(art, false)
      const result = $video.pause()
      notice.show = i18n.get('Pause')
      art.emit('pause')
@@ -1,6 +1,6 @@
 import type { PlayHost } from '../media/hosts'
 import type { PlaybackMethods } from '../media/types'
-import { captureSource } from '../source/operation'
+import { captureSourcePlayback, requestSourcePlayback } from '../source/operation'
 import { def } from '../utils'

 export default function playMix<Media extends Pick<PlaybackMethods, 'play'>>(art: PlayHost<Media>): asserts art is PlayHost<Media> & { play: () => Promise<Awaited<ReturnType<Media['play']>>> } {
@@ -14,7 +14,8 @@ export default function playMix<Media extends Pick<PlaybackMethods, 'play'>>(art

  def(art, 'play', {
    async value() {
-      const active = captureSource(art)
+      requestSourcePlayback(art, true)
+      const active = captureSourcePlayback(art)
      const result = await $video.play()
      if (!active())
        return result
@@ -6,6 +6,9 @@ export interface SourceOperation {
  scope: ResourceScope
  assigned: boolean
  acceptingEvents: boolean
+  pauseRevision: number
+  resumePlaying?: boolean
+  internalPause?: boolean
  onAssigned?: () => void
  onError?: (error: unknown) => void
  active: () => boolean
@@ -15,6 +18,25 @@ const current = new WeakMap<object, SourceOperation>()
 const assignments = new WeakMap<object, SourceOperation>()
 const sources = new WeakMap<object, ResourceScope>()

+export function sourcePlaybackIntent(owner: object): boolean | undefined {
+  const operation = current.get(owner)
+  return operation?.active() ? operation.resumePlaying : undefined
+}
+
+export function requestSourcePlayback(owner: object, playing: boolean): void {
+  const operation = current.get(owner)
+  if (!operation?.active() || operation.resumePlaying === undefined)
+    return
+  if (!playing && operation.internalPause) {
+    operation.internalPause = false
+  }
+  else {
+    operation.resumePlaying = playing
+    if (!playing)
+      operation.pauseRevision++
+  }
+}
+
 export function getSourceScope(owner: object): ResourceScope {
  return sources.get(owner) || getScope(owner)
 }
@@ -26,6 +48,13 @@ export function captureSource(owner: object): () => boolean {
    && sources.get(owner) === source && (!source || !source.closed)
 }

+export function captureSourcePlayback(owner: object): () => boolean {
+  const active = captureSource(owner)
+  const operation = current.get(owner)
+  const revision = operation?.pauseRevision
+  return () => active() && operation?.pauseRevision === revision
+}
+
 export function beginSource(owner: object): SourceOperation {
  const previous = sources.get(owner)
  const source = getScope(owner).child()
@@ -39,6 +68,7 @@ export function beginSource(owner: object): SourceOperation {
    scope,
    assigned: false,
    acceptingEvents: false,
+    pauseRevision: 0,
    active: () => !isClosing(owner) && !scope.closed && current.get(owner) === operation,
  }
  current.set(owner, operation)
@@ -1,7 +1,7 @@
-import type { SourceEvent, SourceListener, SwitchHost } from './types'
+import type { SourceListener, SwitchHost } from './types'
 import { isClosing } from '../lifecycle/instance'
 import { listenSource } from './listen'
-import { assignUrl, beginSource } from './operation'
+import { assignUrl, beginSource, sourcePlaybackIntent } from './operation'
 import { positionRestoration } from './restore-position'

 export function switchSource(art: SwitchHost, url: string, currentTime: number): Promise<void> {
@@ -10,13 +10,16 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
      resolve()
      return
    }
+    const playing = sourcePlaybackIntent(art) ?? art.playing
    const operation = beginSource(art)
+    operation.resumePlaying = playing
    const scope = operation.scope.child()
    let settled = false
    const settle = (failed = false, error?: unknown) => {
      if (settled)
        return
      settled = true
+      operation.resumePlaying = undefined
      operation.onError = undefined
      operation.onAssigned = undefined
      scope.dispose()
@@ -34,8 +37,14 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
    const fail = (error: unknown) => settle(true, error)
    operation.onError = fail
    try {
-      const { playing, aspectRatio, playbackRate } = art
-      art.pause()
+      const { aspectRatio, playbackRate } = art
+      operation.internalPause = true
+      try {
+        art.pause()
+      }
+      finally {
+        operation.internalPause = false
+      }
      if (!active())
        return

@@ -45,10 +54,11 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
      let rateRestored = false
      const position = positionRestoration(art, currentTime, active)
      const resume = async () => {
+        const pauseRevision = operation.pauseRevision
        art.aspectRatio = aspectRatio
        if (!active())
          return
-        if (playing) {
+        if (operation.resumePlaying) {
          // The public play promise still rejects; this internal resume is best effort.
          try {
            await art.play()
@@ -57,7 +67,8 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
        }
        if (!active())
          return
-        art.notice.show = ''
+        if (operation.pauseRevision === pauseRevision)
+          art.notice.show = ''
        settle()
      }
      const resumeWhenReady = () => {
@@ -103,8 +114,8 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
        'seek': position.manual,
      }
      const capture = scope.child()
-      const queued: [SourceEvent, unknown][] = []
-      const names = Object.keys(handlers) as SourceEvent[]
+      const queued: [keyof typeof handlers, unknown][] = []
+      const names = Object.keys(handlers) as (keyof typeof handlers)[]
      for (const name of names) {
        listenSource(capture, art, name, (event) => {
          if (operation.acceptingEvents)
@@ -123,7 +134,7 @@ export function switchSource(art: SwitchHost, url: string, currentTime: number):
          settle()
          return
        }
-        const dispatch = {} as Record<SourceEvent, SourceListener>
+        const dispatch = {} as Record<keyof typeof handlers, SourceListener>
        for (const name of names)
          dispatch[name] = listenSource(readiness, art, name, handlers[name], name !== 'video:seeked')
        for (const [name, event] of queued) {
@@ -0,0 +1,63 @@
+# CORE-24：连续切源的播放意图
+
+状态：完成验收，独立本地提交；起点 b5e96664。Audio-05 的首轮三引擎证据确认六项候选核心回归。
+
+原切源每次读取 art.playing 并立即 art.pause()。第二次同步切源读取到第一次内部
+暂停后的 false；旧操作被正确取消后，原先负责恢复播放的旧监听器不再执行，新
+操作也没有恢复意图。修复必须传递最新切源的播放意图，同时保留过期操作无副作用。
+
+将意图归属当前 source operation，在仍待恢复的操作间转移；用户明确 pause 可以
+取消恢复。内部 pause 仍走既有公开事件，不能把它误当作用户放弃播放。补真实暂停
+状态的受控宿主、重入/取消/失败/销毁和真实浏览器测试。完成后独立提交并恢复 Audio-05。
+
+## 实现与兼容
+
+source/operation.ts 保存待恢复意图、内部暂停标记及暂停修订号；switch.ts 在取消旧
+操作前取得意图，结算时清除，避免完整结束/失败操作的状态泄漏到之后的来源。
+playMix/pauseMix 在原生命令之前更新意图。内部暂停标记由进入 pauseMix 的第一次调用
+消费，嵌套用户暂停仍然生效，不改变现有 pause 事件、同步返回或 play Promise 值/拒绝。
+play 的副作用还核对暂停修订号：晚到的 native play 不能在用户暂停之后更新提示、
+发出 play 或执行互斥，switch 的旧恢复也不能清空新暂停提示。
+
+最初尝试监听 play/pause 事件，已有用例虽通过，但无法保证比用户预注册的回调先执行；
+审查发现用户 pause 回调同步切源时可能先继承旧意图。因此采用命令入口方案（ADR-024），
+没有增加额外监听器、定时器、依赖或公开字段。新用例使用真实 pauseMix/playMix，
+不再让受控宿主的 pause 只计数却不改变播放状态。
+
+一项既有晚到恢复测试原来只写 art.playing=false，未表达暂停命令；它现在同时调用
+真实 art.pause，保留其旧操作不能覆盖新提示的断言。早期事件方案因此悬挂的运行已
+主动终止并保留日志，没有当作通过。新增“恢复未完成时用户暂停”也先复现了错误 play
+事件，再以修订号修复，失败日志均保留。
+
+## 验证结果
+
+- 源切换 34 项单元通过；新增 8 项覆盖连续操作、显式暂停、嵌套暂停、用户监听器重入、
+  未兑现的公开 play 意图、晚到恢复，以及直接 URL/失败/完成/销毁边界。
+- 完整 `yarn ci:check` 594 项通过（548 单元、11 工程、35 基线），严格 TS 与声明检查通过。
+  后续新增一个浏览器命令顺序用例，最终单独 lint 和下面两套矩阵验证。
+- 正常 `yarn build artplayer`、`yarn build:i18n` 通过；后者恢复核心构建清理的语言产物，
+  i18n 与上次提交无差异。三种核心 JS 与 docs/compiled 一致，公开声明/版本未改变。
+- 正式 main/legacy 产物的 source-intent/source/media-events/playback-properties
+  三引擎最终各 81 项通过，无重试或跳过。早期事件方案的 39 项及新增用例前的 78 项
+  保留为过程记录，不充当最终实现证据。
+- 原先失败的六项“候选核心 + 旧/新 Audio”连续切源用例全部通过，测试断言未改。
+  该组合重跑使用核心源码构建与明确指定的 Audio main 产物；正式核心产物另由上述矩阵验证。
+- `yarn test:package` 在仓库外实际安装 tarball 并冻结重装：34 个运行时检查，5 组兼容类型
+  与 8 组精确类型通过。打包核心 JS 与浏览器所测的正式文件逐字节比对。
+- `yarn test:coverage` 通过，224 个运行时文件进入报告、26 个明确排除，0 项门槛违例。
+  总体 Node 行覆盖 61.04%、分支 86.70%、函数 66.75%；不能将浏览器数量当作覆盖率。
+  变动文件的独立计数及产物体积差异见 [冻结证据](../baselines/core-source-intent-validation.json)。
+
+main gzip 从 58,555 增至 58,748 字节（+193），legacy +181、ESM +248；这是兼容行为
+修复的实际体积成本，不声称有性能/体积优化收益。source/operation.ts 的行/分支/函数
+覆盖均 100%，source/switch.ts 行 98.08%、分支 94.20%，其他浏览器路径仍有 Node 覆盖缺口。
+
+## 后续与回退
+
+CORE-SOURCE-01 按上述公开命令与连续切源范围关闭；AUDIO-RESUME-01（旧核心 + 新音频
+在 WebKit 上恢复）、原生偏移边界对照和真实网络缓冲仍由 Audio-05 接续，未一并关闭。
+核心完整安装包全量矩阵、性能/体积风险和物理设备/发布复盘门槛仍需后续最终候选验证；
+本任务的 81 项矩阵不等于重复了 CORE-22 的所有场景，也不代表 npm 发布放行。
+
+回退此独立提交会恢复上次核心运行实现及三种构建文件，同时重新打开 CORE-SOURCE-01；
+不应只回退命令入口或操作状态的一半。无 push/tag/publish/merge。
@@ -5,8 +5,9 @@ CORE-22 汇总核心自有源码、公开声明、生成产物和当前固定消
 [交付记录](changes/2026-09-11-CORE-22-core-acceptance.md)；任务状态以 tasks.json 为准。

 后续 Audio-05 的新组合测试复现了候选核心连续切源丢失播放意图，见
-[首轮证据](baselines/audio-combinations-first.json)。CORE-SOURCE-01/CORE-24 作为新发现
-继续修复，当前不能据本文件历史阶段结果放行；原有通过记录保留其当时的测试范围。
+[首轮证据](baselines/audio-combinations-first.json)。CORE-24 已修复并通过针对性正式
+产物/隔离安装验收，见 [修复记录](changes/2026-09-12-CORE-24-source-intent.md)。
+原有通过记录保留其当时的测试范围，不能据历史阶段结果替代最终候选的全量发布验收。

 ## 契约与回归入口

@@ -28,6 +28,7 @@
 | ADR-021 | 采用方向 | 用户指定 Yarn，固定 Classic 1.22.22 和唯一 yarn.lock | 与原 v1 锁格式一致；保留 Node 24.21.0 和既有依赖版本，ENG-PM-01 验证；替代 ENG-01 的 npm 默认工具选择 |
 | ADR-022 | 采用方向 | Chrome 不可用时使用 Codex 内置浏览器 | 用户明确授权；记录实际环境和能力范围，必要设备测试仍独立验收 |
 | ADR-023 | 已验证于 Audio Track | 参数类型纠正会破坏旧推断时，默认入口保留兼容类型，/runtime 复用相同运行文件提供精确类型 | PKG-AUDIO-04 的 Parameters 与无注解 update 实现证明 Partial/重载仍可能破坏旧用户；沿用核心的类型分层方向，具体包需独立编译与入口身份验证，不增加第二套实现或用 any 绕过 |
+| ADR-024 | 已验证于 CORE-24 | 切源播放意图归属当前操作，在公开 play/pause 命令入口更新，内部暂停不覆盖用户意图 | Audio-05 三引擎复现连续切源最终停在 0；新操作继承未完成操作的意图，显式暂停及其修订号终止旧恢复副作用，过期 Promise 仍保留原结算语义；不依赖用户回调之后才执行的事件监听器 |

 ## 开始实现前需补齐的决定

@@ -4,7 +4,7 @@

 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 217 项，范围 22 个包及工作区/示例。

-状态：todo 147 / doing 1 / blocked 0 / done 69 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 146 / doing 1 / blocked 0 / done 70 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。

 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。

@@ -128,7 +128,7 @@
 | CORE-21 | artplayer<br>生成核心声明并校验包内容 | CORE-20, ENG-07 | 由 TS 生成的既有入口声明与三种发布产物 | 内部类型不泄漏，旧 JS/TS 消费者与 i18n 通过；逐项完成 CORE-07 留下的 BASE-TYPE-04/05/07 声明方案，旧合法消费者与实际返回分别留证；不能以虚假的交叉返回类型或改变运行时来掩盖冲突，未决项阻止核心声明出口；处理 CORE-10 / BASE-TYPE-08 的 setter-only 属性虚构 getter 声明，并复核 PlaybackControls 精确视图与旧 toggle 声明共存策略 | H | done |
 | CORE-23 | artplayer<br>检查并补齐键盘、焦点与可访问名称 | CORE-13, CORE-14, CORE-17, ENG-05, BASE-04 | 主要控件/设置/模式退出的键盘与焦点回归、名称和字幕可用性检查及必要兼容修正 | 保持旧快捷键和 DOM/CSS 钩子；真实浏览器验证，不以静态属性检查代替交互；处理 BASE-DOM-01 的主要控件 Tab 不可达，保留既有名称与快捷键 | H | done |
 | CORE-22 | artplayer<br>核心阶段完整验收 | CORE-21, CORE-23, PILOT-01, ENG-08, ENG-10, ENG-11 | 核心与旧插件的可自动化完整回归、资源/性能及明确外部验证缺口 | 核心自动化和公开差异处置通过；真实环境缺口链接包集成/REL 门槛，阶段完成不代表可公开发布 | H | done |
-| CORE-24 | artplayer<br>修复连续切源的播放意图继承 | CORE-22, PKG-AUDIO-04 | 连续切源保留原播放意图，同时尊重显式暂停与最新来源，回归旧/新 audio | 真实暂停状态的受控测试、重入/取消/失败/销毁、三引擎和 main/legacy 产物验证通过；不恢复过期来源的公开副作用 | H | todo |
+| CORE-24 | artplayer<br>修复连续切源的播放意图继承 | CORE-22, PKG-AUDIO-04 | 连续切源保留原播放意图，同时尊重显式暂停与最新来源，回归旧/新 audio | 真实暂停状态的受控测试、重入/取消/失败/销毁、三引擎和 main/legacy 产物验证通过；不恢复过期来源的公开副作用 | H | done |

 ## 5 包迁移：artplayer-plugin-chapter

@@ -463,7 +463,7 @@
 - CORE-21: [记录](changes/2026-09-11-CORE-21-public-declarations.md) [记录](baselines/core-declarations-validation.json) [记录](core-public-types.md) [记录](typechecking.md)
 - CORE-23: [记录](changes/2026-09-11-CORE-23-keyboard-focus.md) [记录](baselines/keyboard-validation.json)
 - CORE-22: [记录](changes/2026-09-11-CORE-22-core-acceptance.md) [记录](baselines/core-setting-navigation-partial.json) [记录](core-acceptance.md) [记录](baselines/core-acceptance-validation.json)
- CORE-24: [记录](baselines/audio-combinations-first.json)
+- CORE-24: [记录](baselines/audio-combinations-first.json) [记录](changes/2026-09-12-CORE-24-source-intent.md) [记录](baselines/core-source-intent-validation.json)
 - PKG-CHAPTER-01: [记录](changes/2026-09-10-PKG-CHAPTER-01-contract.md) [记录](baselines/chapter-contract.md)
 - PKG-CHAPTER-02: [记录](changes/2026-09-10-PKG-CHAPTER-02-tests.md) [记录](baselines/chapter-validation.json)
 - PKG-CHAPTER-03: [记录](changes/2026-09-10-PKG-CHAPTER-03-typescript-modules.md) [记录](baselines/chapter-migration-validation.json)
@@ -1,5 +1,20 @@
 # 进度与证据

+## 最新完成：CORE-24 连续切源播放意图修复
+
+Audio-05 检查点已提交 b5e96664，原六项候选核心回归保持原断言重跑全部通过。
+切源现在继承尚未完成操作的播放意图，公开 play/pause 在用户回调前更新它；内部
+暂停不覆盖意图，显式暂停和暂停修订号阻止晚到恢复的事件/提示副作用。
+
+源切换单元 34 项、完整 CI 594 项通过；正式 main/legacy 三引擎各 81 项通过；
+隔离 tarball 的 34 项运行时、5 组兼容类型、8 组精确类型通过，运行字节与正式文件一致。
+覆盖率 0 门槛违例，Node 总行覆盖 61.04%，不声称全部源码均已覆盖。
+CORE-SOURCE-01 关闭，AUDIO-RESUME-01、偏移原生对照、真实缓冲及 HLS 风险仍开放。
+
+当前 217 项、70 done、1 doing、146 todo。本任务独立本地提交核实后恢复 Audio-05。
+详见 [修复记录](changes/2026-09-12-CORE-24-source-intent.md) 和
+[冻结证据](baselines/core-source-intent-validation.json)。未推送或发布，全局目标保持不变。
+
 ## 当前实施：Audio-05 发现连续切源回归，拆分 CORE-24

 Audio-04 已独立提交 13c898c1。新组合测试覆盖旧/新核心、旧/新 audio 的连续切源、
@@ -130,5 +130,5 @@
 | AUDIO-SYNC-01 | open / 已复现 | Audio Track 未同步原生暂停/结束，偏移边界与切源/缓冲仍待完整验证 | PKG-AUDIO-02, PKG-AUDIO-03, PKG-AUDIO-05 |
 | AUDIO-TYPE-01 | accepted-with-scope / 源码/产物事实 | Audio Track update 部分配置与公开/编辑器声明不一致 | PKG-AUDIO-04 |
 | AUDIO-DEMO-01 | open / 源码/产物事实 | Audio Track README 示例链接名称不匹配且缺维护说明 | PKG-AUDIO-06 |
-| CORE-SOURCE-01 | open / 已复现 | 候选核心连续切源丢失原播放意图 | CORE-24 |
+| CORE-SOURCE-01 | resolved / 已复现 | 候选核心连续切源丢失原播放意图 | CORE-24 |
 | AUDIO-RESUME-01 | open / 已复现 | WebKit 旧核心切源后候选音频保持暂停 | PKG-AUDIO-05 |
@@ -2731,7 +2731,7 @@
      "id": "CORE-SOURCE-01",
      "title": "候选核心连续切源丢失原播放意图",
      "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
      "owners": [
        "CORE-24"
      ],
@@ -2740,7 +2740,14 @@
        "packages/artplayer/src/source/switch.ts"
      ],
      "compatibleResolution": "继承被替代切源操作的播放意图；显式暂停可以取消恢复，过期操作继续只结算不发布副作用。",
-      "closureCriteria": "新旧对照的连续切源、手动暂停、重入/取消/错误/销毁和正式产物三引擎验证通过。"
+      "closureCriteria": "新旧对照的连续切源、手动暂停、重入/取消/错误/销毁和正式产物三引擎验证通过。",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-12-CORE-24-source-intent.md",
+        "refactor/baselines/core-source-intent-validation.json",
+        "test/source.test.js",
+        "test/browser/source-intent.spec.js"
+      ],
+      "resolutionRationale": "待完成切源操作继承播放意图，公开 play/pause 在原生调用及用户监听器之前更新；内部暂停标记仅消费一次，暂停修订号阻止晚到恢复副作用。34 项源测试、594 项 CI、正式 main/legacy 各 81 项三引擎和原六项 Audio 失败重跑通过，隔离 tarball 字节/运行时/类型验证通过。范围是公开命令及切源操作，不关闭独立 AUDIO-RESUME-01、真机或完整发布门槛。"
    },
    {
      "id": "AUDIO-RESUME-01",
@@ -1249,12 +1249,14 @@
        "CORE-22",
        "PKG-AUDIO-04"
      ],
-      "status": "todo",
+      "status": "done",
      "risk": "H",
      "deliverable": "连续切源保留原播放意图，同时尊重显式暂停与最新来源，回归旧/新 audio",
      "acceptance": "真实暂停状态的受控测试、重入/取消/失败/销毁、三引擎和 main/legacy 产物验证通过；不恢复过期来源的公开副作用",
      "evidence": [
-        "baselines/audio-combinations-first.json"
+        "baselines/audio-combinations-first.json",
+        "changes/2026-09-12-CORE-24-source-intent.md",
+        "baselines/core-source-intent-validation.json"
      ]
    },
    {
@@ -0,0 +1,60 @@
+import { expect, test } from './fixtures.js'
+
+async function start(page, core) {
+  await page.goto(`/test/player.html?core=${core}`)
+  await page.evaluate(() => window.createPlayer('/test/pattern.mp4?intent=initial'))
+  await expect.poll(() => page.evaluate(() => window.art.isReady)).toBe(true)
+  await page.locator('#play').click()
+  await expect.poll(() => page.evaluate(() => window.art.currentTime)).toBeGreaterThan(0.3)
+}
+
+for (const core of ['published', 'candidate']) {
+  test(`${core}: rapid source switches preserve playing on the latest real video without plugins`, async ({ page }, testInfo) => {
+    await start(page, core)
+    await page.evaluate(async () => {
+      window.restarted = []
+      window.art.on('restart', url => window.restarted.push(url))
+      await Promise.all(['one', 'two', 'last'].map(name => window.art.switchUrl(`/test/pattern.mp4?intent=${name}`)))
+    })
+    await expect.poll(() => page.evaluate(() => window.art.currentTime)).toBeGreaterThan(0.3)
+    expect(await page.evaluate(() => window.art.video.paused)).toBe(false)
+    expect(await page.evaluate(() => window.art.video.currentSrc)).toContain('intent=last')
+    expect(await page.evaluate(() => window.restarted)).toEqual(core === 'candidate' ? ['/test/pattern.mp4?intent=last'] : ['one', 'two', 'last'].map(name => `/test/pattern.mp4?intent=${name}`))
+    await testInfo.attach('source-intent', { contentType: 'application/json', body: JSON.stringify(await page.evaluate(() => ({ time: window.art.currentTime, paused: window.art.video.paused, restarts: window.restarted }))) })
+    await page.evaluate(() => window.art.destroy())
+  })
+}
+
+for (const command of ['pause-before-next', 'pause-after-next', 'reentrant-pause', 'pause-listener-switch']) {
+  test(`candidate: ${command} cancels automatic resume until the next user play`, async ({ page }, testInfo) => {
+    await start(page, 'candidate')
+    await page.evaluate(async (command) => {
+      const { art } = window
+      if (command === 'reentrant-pause')
+        art.once('pause', () => art.pause())
+      const first = art.switchUrl('/test/pattern.mp4?intent=first')
+      if (command === 'pause-before-next')
+        art.pause()
+      let last
+      if (command === 'pause-listener-switch') {
+        art.once('pause', () => {
+          last = art.switchUrl('/test/pattern.mp4?intent=last')
+        })
+        art.pause()
+      }
+      else {
+        last = art.switchUrl('/test/pattern.mp4?intent=last')
+      }
+      if (command === 'pause-after-next')
+        art.pause()
+      await Promise.all([first, last])
+    }, command)
+    expect(await page.evaluate(() => window.art.video.paused)).toBe(true)
+    expect(await page.evaluate(() => window.art.video.currentSrc)).toContain('intent=last')
+    await testInfo.attach('source-paused', { contentType: 'application/json', body: JSON.stringify(await page.evaluate(() => ({ paused: window.art.video.paused, readyState: window.art.video.readyState }))) })
+    await page.locator('#play').click()
+    await expect.poll(() => page.evaluate(() => window.art.currentTime)).toBeGreaterThan(0.3)
+    expect(await page.evaluate(() => window.art.video.paused)).toBe(false)
+    await page.evaluate(() => window.art.destroy())
+  })
+}
@@ -4,11 +4,12 @@ import { mock, test } from 'node:test'
 import { setImmediate } from 'node:timers/promises'
 import { loadModules } from './helpers/load.js'

-const { Emitter, urlMix, switchMix, playMix, beginLifecycle, getScope, positionRestoration, currentTimeMix } = await loadModules({
+const { Emitter, urlMix, switchMix, playMix, pauseMix, beginLifecycle, getScope, positionRestoration, currentTimeMix } = await loadModules({
  Emitter: 'packages/artplayer/src/utils/emitter',
  urlMix: 'packages/artplayer/src/player/urlMix',
  switchMix: 'packages/artplayer/src/player/switchMix',
  playMix: 'packages/artplayer/src/player/playMix',
+  pauseMix: 'packages/artplayer/src/player/pauseMix',
  beginLifecycle: { file: 'packages/artplayer/src/lifecycle/instance', name: 'beginLifecycle' },
  getScope: { file: 'packages/artplayer/src/lifecycle/instance', name: 'getScope' },
  positionRestoration: { file: 'packages/artplayer/src/source/restore-position', name: 'positionRestoration' },
@@ -26,15 +27,172 @@ function createArt(customType) {
    aspectRatio: '16:9',
    loading: { show: false },
    notice: { show: '' },
+    i18n: { get: key => key },
    pause: mock.fn(),
    play: mock.fn(() => Promise.resolve()),
  })
  beginLifecycle(art)
+  art.template.$video.pause = () => {
+    art.playing = false
+  }
+  pauseMix(art)
+  art.pause = mock.fn(art.pause)
  urlMix(art)
  switchMix(art)
  return art
 }

+function createPlayingArt() {
+  const art = createArt()
+  const video = art.template.$video
+  video.paused = false
+  Object.defineProperty(art, 'playing', { get: () => !video.paused })
+  video.pause = () => {
+    video.paused = true
+  }
+  video.play = async () => {
+    video.paused = false
+  }
+  art.constructor = { instances: [] }
+  playMix(art)
+  art.play = mock.fn(art.play)
+  return art
+}
+
+test('rapid switches inherit playback intent despite their own native pauses', async () => {
+  const art = createPlayingArt()
+  const first = art.switchUrl('first.mp4')
+  assert.equal(art.playing, false)
+  const second = art.switchUrl('second.mp4')
+  const third = art.switchUrl('last.mp4')
+  await Promise.all([first, second])
+  assert.equal(art.play.mock.callCount(), 0)
+  art.emit('video:canplay')
+  await third
+  assert.equal(art.url, 'last.mp4')
+  assert.equal(art.playing, true)
+  assert.equal(art.play.mock.callCount(), 1)
+  assert.deepEqual(Object.keys(art.e), [])
+})
+
+test('explicit pause during a switch cancels inherited playback for subsequent switches', async () => {
+  const art = createPlayingArt()
+  const first = art.switchUrl('first.mp4')
+  art.pause()
+  const second = art.switchUrl('last.mp4')
+  art.emit('video:canplay')
+  await Promise.all([first, second])
+  assert.equal(art.play.mock.callCount(), 0)
+  assert.equal(art.playing, false)
+  assert.deepEqual(Object.keys(art.e), [])
+})
+
+test('explicit pause before readiness prevents the current switch from resuming', async () => {
+  const art = createPlayingArt()
+  const pending = art.switchUrl('pending.mp4')
+  art.pause()
+  art.emit('video:canplay')
+  await pending
+  assert.equal(art.playing, false)
+  assert.equal(art.play.mock.callCount(), 0)
+})
+
+test('a reentrant explicit pause is not swallowed by the internal switch pause', async () => {
+  const art = createPlayingArt()
+  art.once('pause', () => art.pause())
+  const pending = art.switchUrl('pending.mp4')
+  art.emit('video:canplay')
+  await pending
+  assert.equal(art.playing, false)
+  assert.equal(art.play.mock.callCount(), 0)
+  assert.deepEqual(Object.keys(art.e), [])
+})
+
+test('a user pause updates intent before an existing pause listener starts another switch', async () => {
+  const art = createPlayingArt()
+  const first = art.switchUrl('first.mp4')
+  let second
+  art.once('pause', () => {
+    second = art.switchUrl('last.mp4')
+  })
+  art.pause()
+  art.emit('video:canplay')
+  await Promise.all([first, second])
+  assert.equal(art.url, 'last.mp4')
+  assert.equal(art.playing, false)
+  assert.equal(art.play.mock.callCount(), 0)
+  assert.deepEqual(Object.keys(art.e), [])
+})
+
+test('a pending explicit play command survives replacement even before native play fulfills', async () => {
+  const art = createPlayingArt()
+  const first = art.switchUrl('first.mp4')
+  art.pause()
+  let finish
+  let calls = 0
+  art.template.$video.play = () => {
+    if (++calls === 1)
+      return new Promise(resolve => finish = resolve)
+    art.template.$video.paused = false
+    return Promise.resolve()
+  }
+  const playing = art.play()
+  const second = art.switchUrl('last.mp4')
+  await first
+  art.emit('video:canplay')
+  await second
+  finish(42)
+  assert.equal(await playing, 42)
+  assert.equal(calls, 2)
+  assert.equal(art.playing, true)
+})
+
+test('a late native resume cannot publish play or clear notice after an explicit pause', async () => {
+  const art = createPlayingArt()
+  let finish
+  const events = []
+  art.on('play', () => events.push('play'))
+  art.template.$video.play = () => new Promise(resolve => finish = resolve)
+  const pending = art.switchUrl('pending.mp4')
+  art.emit('video:canplay')
+  art.pause()
+  finish(42)
+  await pending
+  assert.deepEqual(events, [])
+  assert.equal(art.notice.show, 'Pause')
+  assert.equal(art.playing, false)
+})
+
+test('cancelled, failed and completed switches never leak playback intent to a new source', async () => {
+  for (const boundary of ['direct-url', 'failure', 'completed', 'destroy']) {
+    const art = createPlayingArt()
+    const pending = art.switchUrl('first.mp4')
+    if (boundary === 'failure') {
+      const error = new Error('Controlled media failure')
+      const rejected = assert.rejects(pending, actual => actual === error)
+      art.emit('video:error', error)
+      await rejected
+    }
+    else {
+      if (boundary === 'direct-url')
+        art.url = 'direct.mp4'
+      if (boundary === 'completed')
+        art.emit('video:canplay')
+      if (boundary === 'destroy')
+        getScope(art).dispose()
+      await pending
+    }
+    art.pause()
+    const played = art.play.mock.callCount()
+    const next = art.switchUrl('next.mp4')
+    art.emit('video:canplay')
+    await next
+    assert.equal(art.play.mock.callCount(), played, boundary)
+    assert.equal(art.playing, false, boundary)
+    assert.deepEqual(Object.keys(art.e), [])
+  }
+})
+
 test('source assignment does not revoke a caller-owned Blob URL still used elsewhere', async (t) => {
  const art = createArt()
  const blob = new Blob(['shared media'], { type: 'video/mp4' })
@@ -349,6 +507,8 @@ test('late resume fulfillment or rejection cannot clear a newer operation notice
    const first = art.switchUrl('first.mp4')
    art.emit('video:canplay')
    art.playing = false
+    // Model the explicit pause command, not only a read-only playback-state snapshot.
+    art.pause()
    const second = art.switchUrl('second.mp4')
    await first
    art.notice.show = 'new source notice'