feat(contacts): new contact confirmation

core/embed/rust/src/ui/model_mercury/layout.rs

@@ -810,6 +810,7 @@ extern "C" fn new_confirm_value(n_args: usize, args: *const Obj, kwargs: *mut Ma
             .with_text_mono(text_mono)
             .with_prompt(hold)
             .with_hold(hold)
+            .with_description_font(&theme::TEXT_SUB_GREY)
             .into_flow()
             .and_then(LayoutObj::new_root)
             .map(Into::into)

core/src/apps/bitcoin/sign_message.py

@@ -17,7 +17,7 @@ async def sign_message(
     from trezor.crypto.curve import secp256k1
     from trezor.enums import InputScriptType
     from trezor.messages import MessageSignature
-    from trezor.ui.layouts import confirm_signverify
+    from trezor.ui.layouts import confirm_signverify, confirm_new_contact
 
     from apps.common.paths import address_n_to_str, validate_path
     from apps.common.signverify import decode_message, message_digest
@@ -40,14 +40,26 @@ async def sign_message(
     address = get_address(script_type, coin, node)
     path = address_n_to_str(address_n)
     account = address_n_to_name_or_unknown(coin, address_n, script_type)
-    await confirm_signverify(
-        decode_message(message),
-        address_short(coin, address),
-        verify=False,
-        account=account,
-        path=path,
-        chunkify=bool(msg.chunkify),
-    )
+    message_decoded = decode_message(message)
+    if "/" in message_decoded:
+        # message will have format <label>/<npub>
+        # hackathon simplification
+        await confirm_new_contact(
+            label=message_decoded,
+            contact_id=address,
+            account=account,
+            path=path,
+            chunkify=bool(msg.chunkify),
+        )
+    else:
+        await confirm_signverify(
+            message_decoded,
+            address_short(coin, address),
+            verify=False,
+            account=account,
+            path=path,
+            chunkify=bool(msg.chunkify),
+        )
 
     seckey = node.private_key()
 

core/src/trezor/ui/layouts/mercury/__init__.py

@@ -148,6 +148,42 @@ def confirm_multisig_different_paths_warning() -> Awaitable[None]:
     )
 
 
+async def confirm_new_contact(
+    label: str,
+    contact_id: str,
+    path: str | None = None,
+    account: str | None = None,
+    chunkify: bool = True,
+) -> None:
+    info_items = []
+    if path:
+        info_items.append(("Path", path))
+    if account:
+        info_items.append(("Account", account))
+    await confirm_value(
+        title="New contact",
+        value=contact_id,
+        description="NPub",
+        br_name="confirm_new_contact",
+        value_text_mono=True,
+        info_items=info_items or None,
+        info_title=TR.buttons__more_info,
+        verb=TR.buttons__confirm,
+        chunkify=chunkify,
+    )
+    await confirm_value(
+        title="New contact",
+        value=label,
+        description="Contact label",
+        br_name="confirm_new_contact",
+        value_text_mono=False,
+        info_items=info_items or None,
+        info_title=TR.buttons__more_info,
+        hold=True,
+        chunkify=False,
+    )
+
+
 def confirm_homescreen(
     image: bytes,
 ) -> Awaitable[None]: