Specify the mode API

spec/index.bs

@@ -623,8 +623,11 @@ This specification introduces an extension to the {{CredentialRequestOptions}} o
 The {{IdentityCredentialRequestOptions}} contains a list of
 {{IdentityProviderConfig}}s that the [=RP=] supports and has
 pre-registered with (i.e. the [=IDP=] has given the [=RP=] a `clientId`).
-The {{IdentityCredentialRequestOptions}} also contains a {{IdentityCredentialRequestOptionsContext}}
-which the user agent can use to provide a more meaningful dialog to users.
+The {{IdentityCredentialRequestOptions}} also contains an
+{{IdentityCredentialRequestOptionsContext}}, which the user agent can use to
+provide a more meaningful dialog to users, and an
+{{IdentityCredentialRequestOptionsMode}}, which the user agent can use to
+specify different behaviors or dialog types.
 
 <xmp class=idl>
 enum IdentityCredentialRequestOptionsContext {
@@ -634,9 +637,15 @@ enum IdentityCredentialRequestOptionsContext {
   "continue"
 };
 
+enum IdentityCredentialRequestOptionsMode {
+  "active",
+  "passive"
+};
+
 dictionary IdentityCredentialRequestOptions {
   required sequence<IdentityProviderRequestOptions> providers;
   IdentityCredentialRequestOptionsContext context = "signin";
+  IdentityCredentialRequestOptionsMode mode = "passive";
 };
 </xmp>
 
@@ -774,27 +783,27 @@ To <dfn>create an IdentityCredential</dfn> given an {{IdentityProviderRequestOpt
 or a pair (failure, bool), where the bool indicates whether to skip delaying
 the exception thrown.
     1. Assert: These steps are running [=in parallel=].
+    1. Let |mode| be |options|'s {{IdentityCredentialRequestOptions/mode}}.
+    1. If |mode| is [=active=]:
+        1. Let |W| be |globalObject|'s [=associated Window=].
+        1. If |W| does not have [=transient activation=], return (failure, true).
+        1. Otherwise, if there is a pending request where |mode| is [=passive=] on |W|'s
+            [top-level browsing context](https://html.spec.whatwg.org/#bc-traversable) or on any
+            of its nested frames, reject the pending request with a "{{NetworkError}}" {{DOMException}}.
     1. Let |loginStatus| be the result of [=get the login status=] with
         the [=/origin=] of |provider|'s {{IdentityProviderConfig/configURL}}.
     1. If |loginStatus| is [=unknown=], a user agent MAY set it to [=logged-out=].
-    1. If |loginStatus| is [=logged-out=], the user agent MUST do one of the following:
-
-        * Return (failure, false).
-        * Prompt the user whether to continue. If the user continues, the user
-            agent SHOULD set |loginStatus| to [=unknown=]. This MAY include an
-            affordance to [=show an IDP login dialog=].
-
-            * If the user cancels this dialog, return (failure, true).
-            * If the user triggers this affordance:
-                1. Let |config| be the result of running [=fetch the config file=]
-                    with |provider| and |globalObject|.
-                1. If |config| is failure, return (failure, true).
-                1. [=Show an IDP login dialog=] with |config| and |provider|.
-                1. If that algorithm returns failure, return (failure, true).
-
-        Issue: We should perhaps provide a way to let the [=RP=] request that
-            the second option is provided, possibly gated on a user gesture.
-            See [this issue](https://github.com/fedidcg/FedCM/issues/442) for discussion.
+    1. If |loginStatus| is [=logged-out=]:
+        1. If |mode| is [=active=], [=fetch the config file and show an IDP login dialog=]
+            with |provider| and |globalObject|.
+        1. Otherwise, the user agent MUST do one of the following:
+            * Return (failure, false).
+            * Prompt the user whether to continue. If the user continues, the user
+                agent SHOULD set |loginStatus| to [=unknown=]. This MAY include an
+                affordance to [=show an IDP login dialog=].
+                * If the user cancels this dialog, return (failure, true).
+                * If the user triggers this affordance, [=fetch the config file and show an IDP login dialog=]
+                   with |provider| and |globalObject|.
     1. Let |requiresUserMediation| be |provider|'s {{IdentityProviderConfig/configURL}}'s [=/origin=]'s
         [=requires user mediation=].
     1. Let |mediation| be |options|'s {{CredentialRequestOptions/mediation}}.
@@ -884,7 +893,8 @@ the exception thrown.
         1. If [=compute the connection status=] of |account|, |provider| and |globalObject| returns
             [=compute the connection status/connected=], show a dialog to request user permission to sign
             in via |account|, and set the result in |permission|. The user agent MAY use |options|'s
-            {{IdentityCredentialRequestOptions/context}} to customize the dialog.
+            {{IdentityCredentialRequestOptions/context}} and |options|'s
+            {{IdentityCredentialRequestOptions/mode}} to customize the dialog.
         1. Otherwise, let |permission| be the result of running [=request permission to sign-up=]
             algorithm with |account|, |config|, |provider|, and |globalObject|. Also set
             |disclosureTextShown| to true.
@@ -1290,8 +1300,9 @@ an {{IdentityProviderAPIConfig}} |config|, an {{IdentityProviderRequestOptions}}
             is defined, and the |provider|'s {{IdentityProviderConfig/clientId}} is not in the list of
             |account|["{{IdentityProviderAccount/approved_clients}}"], then the user agent MUST display
             the |metadata|["{{IdentityProviderClientMetadata/terms_of_service_url}}"] link.
-        1. The user agent MAY use the {{IdentityCredentialRequestOptions/context}} to customize the
-            dialog shown.
+        1. The user agent MAY use the
+            {{IdentityCredentialRequestOptions/context}} and |options|'s
+            {{IdentityCredentialRequestOptions/mode}} to customize the dialog shown.
     1. If the user does not grant permission, return false.
     1. [=Create a connection between the RP and the IdP account=] with |provider|, |account|, and
         |globalObject|.
@@ -1458,6 +1469,19 @@ success or failure.
             1. Otherwise, return failure.
 </div>
 
+<div algorithm>
+To <dfn>fetch the config file and show an IDP login dialog</dfn> given an
+{{IdentityProviderConfig}} |provider|, and a |globalObject|, run the following
+steps. This returns success or failure.
+    1. Assert: these steps are running [=in parallel=].
+    1. Let |config| be the result of running [=fetch the config file=]
+              with |provider| and |globalObject|.
+    1. If |config| is failure, return failure.
+    1. [=Show an IDP login dialog=] with |config| and |provider|.
+    1. If that algorithm succeeds, return success.
+    1. Otherwise, return failure.
+</div>
+
 <!-- ============================================================ -->
 ## The IdentityProvider Interface ## {#browser-api-identity-provider-interface}
 <!-- ============================================================ -->