Add the possibility to set a new keySystems option on the reload API

doc/api/Basic_Methods/reload.md

@@ -35,6 +35,17 @@ The options argument is an object containing :
   content was playing the last time it was played and stay in the `"LOADED"`
   state (and paused) if it was paused last time it was played.
 
+- _keySystems_ (`Array.<Object> | undefined`): If set, a new configuration will
+  be set on this reloaded content regarding its decryption.
+
+  The value of this property follows the exact same structure than for the
+  original `loadVideo` call, it is described in the [decryption options
+  documentation page](../Decryption_Options.md).
+
+  You might for example want to update that way the `keySystems` option compared
+  to the one of the original `loadVideo` call when you suspect that there is a
+  decryption-related issue with the original `keySystems` given.
+
 Note that despite this method's name, the player will not go through the
 `RELOADING` state while reloading the content but through the regular `LOADING`
 state - as if `loadVideo` was called on that same content again.

src/core/api/option_utils.ts

@@ -397,6 +397,8 @@ function parseConstructorOptions(
  */
 function checkReloadOptions(options?: {
   reloadAt?: { position?: number; relative?: number };
+  keySystems?: IKeySystemOption[];
+  autoPlay?: boolean;
 }): void {
   if (options === null ||
       (typeof options !== "object" && options !== undefined)) {
@@ -414,6 +416,12 @@ function checkReloadOptions(options?: {
       options?.reloadAt?.relative !== undefined) {
     throw new Error("API: reload - Invalid 'reloadAt.relative' option format.");
   }
+  if (!Array.isArray(options?.keySystems) && options?.keySystems !== undefined) {
+    throw new Error("API: reload - Invalid 'keySystems' option format.");
+  }
+  if (options?.autoPlay !== undefined && typeof options.autoPlay !== "boolean") {
+    throw new Error("API: reload - Invalid 'autoPlay' option format.");
+  }
 }
 
 /**

src/core/api/public_api.ts

@@ -59,6 +59,7 @@ import {
   IConstructorOptions,
   IDecipherabilityUpdateContent,
   IKeySystemConfigurationOutput,
+  IKeySystemOption,
   ILoadVideoOptions,
   IPeriod,
   IPlayerError,
@@ -577,6 +578,7 @@ class Player extends EventEmitter<IPublicAPIEvent> {
    */
   reload(reloadOpts?: {
     reloadAt?: { position?: number; relative?: number };
+    keySystems?: IKeySystemOption[];
     autoPlay?: boolean;
   }): void {
     const { options,
@@ -609,6 +611,13 @@ class Player extends EventEmitter<IPublicAPIEvent> {
       autoPlay = !reloadInPause;
     }
 
+    let keySystems : IKeySystemOption[] | undefined;
+    if (reloadOpts?.keySystems !== undefined) {
+      keySystems = reloadOpts.keySystems;
+    } else if (this._priv_reloadingMetadata.options?.keySystems !== undefined) {
+      keySystems = this._priv_reloadingMetadata.options.keySystems;
+    }
+
     const newOptions = { ...options,
                          initialManifest: manifest };
     if (startAt !== undefined) {
@@ -617,6 +626,9 @@ class Player extends EventEmitter<IPublicAPIEvent> {
     if (autoPlay !== undefined) {
       newOptions.autoPlay = autoPlay;
     }
+    if (keySystems !== undefined) {
+      newOptions.keySystems = keySystems;
+    }
     this._priv_initializeContentPlayback(newOptions);
   }
 
@@ -626,7 +638,7 @@ class Player extends EventEmitter<IPublicAPIEvent> {
     if (features.createDebugElement === null) {
       throw new Error("Feature `DEBUG_ELEMENT` not added to the RxPlayer");
     }
-    const canceller = new TaskCanceller() ;
+    const canceller = new TaskCanceller();
     features.createDebugElement(element, this, canceller.signal);
     return {
       dispose() {