Remove MediaSessionAction[Details] enum/dict from MDN

files/en-us/_redirects.txt

@@ -7964,6 +7964,12 @@
 /en-US/docs/Web/API/MediaRecorder/canRecordMimeType	/en-US/docs/Web/API/MediaRecorder/isTypeSupported
 /en-US/docs/Web/API/MediaRecorder_API	/en-US/docs/Web/API/MediaStream_Recording_API
 /en-US/docs/Web/API/MediaRecorder_API/Using_the_MediaRecorder_API	/en-US/docs/Web/API/MediaStream_Recording_API/Using_the_MediaStream_Recording_API
+/en-US/docs/Web/API/MediaSessionAction	/en-US/docs/Web/API/MediaSession/setActionHandler
+/en-US/docs/Web/API/MediaSessionActionDetails	/en-US/docs/Web/API/MediaSession/setActionHandler
+/en-US/docs/Web/API/MediaSessionActionDetails/action	/en-US/docs/Web/API/MediaSession/setActionHandler
+/en-US/docs/Web/API/MediaSessionActionDetails/fastSeek	/en-US/docs/Web/API/MediaSession/setActionHandler
+/en-US/docs/Web/API/MediaSessionActionDetails/seekOffset	/en-US/docs/Web/API/MediaSession/setActionHandler
+/en-US/docs/Web/API/MediaSessionActionDetails/seekTime	/en-US/docs/Web/API/MediaSession/setActionHandler
 /en-US/docs/Web/API/MediaSettingsRange	/en-US/docs/Web/API/ImageCapture/getPhotoCapabilities
 /en-US/docs/Web/API/MediaSettingsRange/max	/en-US/docs/Web/API/ImageCapture/getPhotoCapabilities
 /en-US/docs/Web/API/MediaSettingsRange/min	/en-US/docs/Web/API/ImageCapture/getPhotoCapabilities

files/en-us/_wikihistory.json

@@ -59222,44 +59222,6 @@
       "Sheppy"
     ]
   },
-  "Web/API/MediaSessionAction": {
-    "modified": "2020-10-15T22:32:38.938Z",
-    "contributors": [
-      "chrisdavidmills",
-      "Sheppy"
-    ]
-  },
-  "Web/API/MediaSessionActionDetails": {
-    "modified": "2020-10-15T22:29:13.391Z",
-    "contributors": [
-      "chrisdavidmills",
-      "Sheppy"
-    ]
-  },
-  "Web/API/MediaSessionActionDetails/action": {
-    "modified": "2020-10-15T22:29:15.064Z",
-    "contributors": [
-      "Sheppy"
-    ]
-  },
-  "Web/API/MediaSessionActionDetails/fastSeek": {
-    "modified": "2020-10-15T22:29:15.752Z",
-    "contributors": [
-      "Sheppy"
-    ]
-  },
-  "Web/API/MediaSessionActionDetails/seekOffset": {
-    "modified": "2020-10-15T22:29:15.264Z",
-    "contributors": [
-      "Sheppy"
-    ]
-  },
-  "Web/API/MediaSessionActionDetails/seekTime": {
-    "modified": "2020-10-15T22:29:15.353Z",
-    "contributors": [
-      "Sheppy"
-    ]
-  },
   "Web/API/MediaSource": {
     "modified": "2020-10-15T21:24:31.806Z",
     "contributors": [

files/en-us/web/api/media_session_api/index.md

@@ -44,8 +44,6 @@ navigator.mediaSession.playbackState = "playing";
 
 - {{domxref("MediaImage")}}
   - : A `MediaImage` object contains information describing an image associated with the media. This might be a CD or DVD cover, a movie poster, a poster frame, or the like.
-- {{domxref("MediaSessionActionDetails")}}
-  - : Provides information needed in order to perform the action that has been requested, including the type of action to perform and any other information needed, such as seek distances or times.
 
 ## Examples
 

files/en-us/web/api/mediasession/index.md

@@ -28,7 +28,7 @@ For example, a smartphone might have a standard panel in its lock screen that pr
 ## Methods
 
 - {{domxref("MediaSession.setActionHandler", "setActionHandler()")}}
-  - : Sets an action handler for a [media session action](/en-US/docs/Web/API/MediaSessionAction), such as play or pause.
+  - : Sets an action handler for a media session action, such as play or pause.
 - {{domxref("MediaSession.setPositionState", "setPositionState()")}}
   - : Sets the current playback position and speed of the media currently being presented.
 

files/en-us/web/api/mediasession/setactionhandler/index.md

@@ -31,14 +31,35 @@ navigator.mediaSession.setActionHandler(type, callback)
 
 - `type`
   - : A {{domxref("DOMString")}} representing an action type to listen for. It will be one
-    of `{{anch("play")}}`,
-    `{{anch("pause")}}`, `{{anch("stop")}}`,
-    `{{anch("seekbackward")}}`, `{{anch("seekforward")}}`, `{{anch("seekto")}}`, `{{anch("skipad")}}`,`{{anch("previoustrack")}}`,
-    or `{{anch("nexttrack")}}`. Further details on the action types can be
-    found below under {{anch("Media session actions")}}.
+    of the following:
+    - `nexttrack`
+      - : Advances playback to the next track.
+    - `pause`
+      - : Pauses playback of the media.
+    - `play`
+      - : Begins (or resumes) playback of the media.
+    - `previoustrack`
+      - : Moves back to the previous track.
+    - `seekbackward`
+      - : Seeks backward through the media from the current position. The `seekOffset` property passed to the callback specifies the amount of time to seek backward.
+    - `seekforward`
+      - : Seeks forward from the current position through the media. The `seekOffset` property passed to the callback specifies the amount of time to seek forward.
+    - `seekto`
+      - : Moves the playback position to the specified time within the media. The time to which to seek is specified in the `seekTime` property passed to the callback. If you intend to perform multiple `seekto` operations in rapid succession, you can also specify the `fastSeek` property passed to the callback with a value of `true`. This lets the browser know it can take steps to optimize repeated operations, and is likely to result in improved performance.
+    - `skipad`
+      - : Skips past the currently playing advertisement or commercial. This action may or may not be available, depending on the platform and {{Glossary("user agent")}}, or may be disabled due to subscription level or other circumstances.
+    - `stop`
+      - : Halts playback entirely.
 - `callback`
-  - : A function to call when the specified action type is invoked. The callback receives
-    no input parameters, and should not return a value.
+  - : A function to call when the specified action type is invoked. The callback should not return a value. The callback receives a dictionary containing the following properties:
+    - `action`
+      - : A {{domxref("DOMString")}} representing the action type. This property allows a single callback to handle multiple action types.
+    - `fastSeek` {{optional_inline}}
+      - : An `{{anch("seekto")}}` action may *optionally* include this property, which is a Boolean value indicating whether or not to perform a "fast" seek. A "fast" seek is a seek being performed in a rapid sequence, such as when fast-forwarding or reversing through the media, rapidly skipping through it. This property can be used to indicate that you should use the shortest possible method to seek the media. `fastSeek` is not included on the final action in the seek sequence in this situation.
+    - `seekOffset` {{optional_inline}}
+      - : If the `action` is either `{{anch("seekforward")}}` or `{{anch("seekbackward")}}` and this property is present, it is a floating point value which indicates the number of seconds to move the play position forward or backward. If this property isn't present, those actions should choose a reasonable default distance to skip forward or backward (such as 7 or 10 seconds).
+    - `seekTime` {{optional_inline}}
+      - : If the `action` is `{{anch("seekto")}}`, this property must be present and must be a floating-point value indicating the absolute time within the media to move the playback position to, where 0 indicates the beginning of the media. This property is not present for other action types.
 
 ### Return value
 
@@ -49,8 +70,7 @@ navigator.mediaSession.setActionHandler(type, callback)
 To remove a previously-established action handler, call `setActionHandler()`
 again, specifying `null` as the `callback`.
 
-The action handler receives as input a single parameter: an object conforming to
-the {{domxref("MediaSessionActionDetails")}} dictionary, which provides both the action
+The action handler receives as input a single parameter: an object which provides both the action
 type (so the same function can handle multiple action types), as well as data needed in
 order to perform the action.
 
@@ -153,8 +173,7 @@ navigator.mediaSession.setActionHandler('nexttrack', null);
 ### Supporting multiple actions in one handler function
 
 You can also, if you prefer, use a single function to handle multiple action types, by
-checking the value of the `MediaSessionActionDetails` object's
-{{domxref("MediaSessionActionDetails.action", "action")}} property:
+checking the value of the `action` property:
 
 ```js
 let skipTime = 7;