feat(core): implement show_more dialogue for TR

[no changelog]

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

@@ -256,7 +256,11 @@ fn content_in_button_page<T: Component + Paginate + MaybeTrace + 'static>(
     // Left button - icon, text or nothing.
     let cancel_btn = if let Some(verb_cancel) = verb_cancel {
         if !verb_cancel.is_empty() {
-            Some(ButtonDetails::text(verb_cancel))
+            if verb_cancel.as_ref() == "left_arrow_icon" {
+                Some(ButtonDetails::left_arrow_icon())
+            } else {
+                Some(ButtonDetails::text(verb_cancel))
+            }
         } else {
             Some(ButtonDetails::cancel_icon())
         }
@@ -1062,7 +1066,7 @@ extern "C" fn new_confirm_with_info(n_args: usize, args: *const Obj, kwargs: *mu
 
         for para in IterBuf::new().try_iterate(items)? {
             let [font, text]: [Obj; 2] = iter_into_array(para)?;
-            let style: &TextStyle = theme::textstyle_number_bold_or_mono(font.try_into()?);
+            let style: &TextStyle = theme::textstyle_number(font.try_into()?);
             let text: StrBuffer = text.try_into()?;
             paragraphs.add(Paragraph::new(style, text));
             if paragraphs.is_full() {
@@ -1081,6 +1085,32 @@ extern "C" fn new_confirm_with_info(n_args: usize, args: *const Obj, kwargs: *mu
     unsafe { util::try_with_args_and_kwargs(n_args, args, kwargs, block) }
 }
 
+extern "C" fn new_confirm_more(n_args: usize, args: *const Obj, kwargs: *mut Map) -> Obj {
+    let block = move |_args: &[Obj], kwargs: &Map| {
+        let title: StrBuffer = kwargs.get(Qstr::MP_QSTR_title)?.try_into()?;
+        let button: StrBuffer = kwargs.get(Qstr::MP_QSTR_button)?.try_into()?;
+        let items: Obj = kwargs.get(Qstr::MP_QSTR_items)?;
+
+        let mut paragraphs = ParagraphVecLong::new();
+
+        for para in IterBuf::new().try_iterate(items)? {
+            let [font, text]: [Obj; 2] = iter_into_array(para)?;
+            let style: &TextStyle = theme::textstyle_number(font.try_into()?);
+            let text: StrBuffer = text.try_into()?;
+            paragraphs.add(Paragraph::new(style, text));
+        }
+
+        content_in_button_page(
+            title,
+            paragraphs.into_paragraphs(),
+            button,
+            Some("left_arrow_icon".into()),
+            false,
+        )
+    };
+    unsafe { util::try_with_args_and_kwargs(n_args, args, kwargs, block) }
+}
+
 extern "C" fn new_confirm_coinjoin(n_args: usize, args: *const Obj, kwargs: *mut Map) -> Obj {
     let block = move |_args: &[Obj], kwargs: &Map| {
         let max_rounds: StrBuffer = kwargs.get(Qstr::MP_QSTR_max_rounds)?.try_into()?;
@@ -1648,6 +1678,16 @@ pub static mp_module_trezorui2: Module = obj_module! {
     ///     without scrolling."""
     Qstr::MP_QSTR_confirm_with_info => obj_fn_kw!(0, new_confirm_with_info).as_obj(),
 
+    /// def confirm_more(
+    ///     *,
+    ///     title: str,
+    ///     button: str,
+    ///     items: Iterable[tuple[int, str]],
+    /// ) -> object:
+    ///     """Confirm long content with the possibility to go back from any page.
+    ///     Meant to be used with confirm_with_info."""
+    Qstr::MP_QSTR_confirm_more => obj_fn_kw!(0, new_confirm_more).as_obj(),
+
     /// def confirm_coinjoin(
     ///     *,
     ///     max_rounds: str,

core/embed/rust/src/ui/model_tr/theme.rs

@@ -37,13 +37,13 @@ pub const TEXT_MONO_DATA: TextStyle =
     TEXT_MONO.with_line_breaking(LineBreaking::BreakWordsNoHyphen);
 
 /// Convert Python-side numeric id to a `TextStyle`.
-/// Using only BOLD or MONO fonts.
-pub fn textstyle_number_bold_or_mono(num: i32) -> &'static TextStyle {
+pub fn textstyle_number(num: i32) -> &'static TextStyle {
     let font = Font::from_i32(-num);
     match font {
         Some(Font::BOLD) => &TEXT_BOLD,
         Some(Font::DEMIBOLD) => &TEXT_BOLD,
-        _ => &TEXT_MONO,
+        Some(Font::NORMAL) => &TEXT_NORMAL,
+        _ => &TEXT_MONO_DATA,
     }
 }
 

core/mocks/generated/trezorui2.pyi

@@ -231,6 +231,17 @@ def confirm_with_info(
     without scrolling."""
 
 
+# rust/src/ui/model_tr/layout.rs
+def confirm_more(
+    *,
+    title: str,
+    button: str,
+    items: Iterable[tuple[int, str]],
+) -> object:
+    """Confirm long content with the possibility to go back from any page.
+    Meant to be used with confirm_with_info."""
+
+
 # rust/src/ui/model_tr/layout.rs
 def confirm_coinjoin(
     *,

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

@@ -761,16 +761,61 @@ async def confirm_blob(
             extra=None,
             verb_cancel="",  # to show the cancel icon
             hold=hold,
+            verb_cancel="",  # icon
         )
     )
 
-    await raise_if_not_confirmed(
-        interact(
-            layout,
-            br_type,
-            br_code,
+    if ask_pagination and layout.page_count() > 1:
+        assert not hold
+        await _confirm_ask_pagination(br_type, title, data, description, br_code)
+
+    else:
+        await raise_if_not_confirmed(
+            interact(
+                layout,
+                br_type,
+                br_code,
+            )
         )
-    )
+
+
+async def _confirm_ask_pagination(
+    br_type: str,
+    title: str,
+    data: bytes | str,
+    description: str,
+    br_code: ButtonRequestType,
+) -> None:
+    paginated: ui.Layout | None = None
+    # TODO: make should_show_more/confirm_more accept bytes directly
+    if isinstance(data, bytes):
+        from ubinascii import hexlify
+
+        data = hexlify(data).decode()
+    while True:
+        if not await should_show_more(
+            title,
+            para=[(ui.NORMAL, description), (ui.MONO, data)],
+            br_type=br_type,
+            br_code=br_code,
+        ):
+            return
+
+        if paginated is None:
+            paginated = RustLayout(
+                trezorui2.confirm_more(
+                    title=title,
+                    button="GO BACK",
+                    items=[(ui.MONO, data)],
+                )
+            )
+        else:
+            paginated.request_complete_repaint()
+
+        result = await interact(paginated, br_type, br_code)
+        assert result in (CONFIRMED, CANCELLED)
+
+    assert False
 
 
 async def confirm_address(