fix(core/rust/ui): respect DISABLE_ANIMATION

[no changelog]

core/embed/rust/librust_qstr.h

@@ -16,6 +16,7 @@ static void _librust_qstrs(void) {
   MP_QSTR_CONFIRMED;
   MP_QSTR_CANCELLED;
   MP_QSTR_INFO;
+  MP_QSTR_disable_animation;
   MP_QSTR_confirm_action;
   MP_QSTR_confirm_blob;
   MP_QSTR_confirm_properties;

core/embed/rust/src/ui/component/text/paragraphs.rs

@@ -89,6 +89,10 @@ where
         self
     }
 
+    pub fn inner(&self) -> &T {
+        &self.source
+    }
+
     pub fn inner_mut(&mut self) -> &mut T {
         &mut self.source
     }

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

@@ -6,10 +6,14 @@ use crate::{
         iter::{Iter, IterBuf},
         list::List,
         obj::Obj,
+        util::try_or_raise,
     },
-    ui::component::text::{
-        paragraphs::{Paragraph, ParagraphSource, ParagraphStrType},
-        TextStyle,
+    ui::{
+        component::text::{
+            paragraphs::{Paragraph, ParagraphSource, ParagraphStrType},
+            TextStyle,
+        },
+        util::set_animation_disabled,
     },
 };
 use cstr_core::cstr;
@@ -228,3 +232,11 @@ impl ParagraphStrType for StrBuffer {
         self.offset(chars)
     }
 }
+
+pub extern "C" fn upy_disable_animation(disable: Obj) -> Obj {
+    let block = || {
+        set_animation_disabled(disable.try_into()?);
+        Ok(Obj::const_none())
+    };
+    unsafe { try_or_raise(block) }
+}

core/embed/rust/src/ui/model_t1/layout.rs

@@ -13,6 +13,7 @@ use crate::{
         layout::{
             obj::{ComponentMsgObj, LayoutObj},
             result::{CANCELLED, CONFIRMED},
+            util::upy_disable_animation,
         },
     },
 };
@@ -116,6 +117,10 @@ pub static mp_module_trezorui2: Module = obj_module! {
     /// CANCELLED: object
     Qstr::MP_QSTR_CANCELLED => CANCELLED.as_obj(),
 
+    /// def disable_animation(disable: bool) -> None:
+    ///     """Disable animations, debug builds only."""
+    Qstr::MP_QSTR_disable_animation => obj_fn_1!(upy_disable_animation).as_obj(),
+
     /// def confirm_action(
     ///     *,
     ///     title: str,

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

@@ -13,6 +13,7 @@ use crate::{
         layout::{
             obj::{ComponentMsgObj, LayoutObj},
             result::{CANCELLED, CONFIRMED},
+            util::upy_disable_animation,
         },
     },
 };
@@ -116,6 +117,10 @@ pub static mp_module_trezorui2: Module = obj_module! {
     /// CANCELLED: object
     Qstr::MP_QSTR_CANCELLED => CANCELLED.as_obj(),
 
+    /// def disable_animation(disable: bool) -> None:
+    ///     """Disable animations, debug builds only."""
+    Qstr::MP_QSTR_disable_animation => obj_fn_1!(upy_disable_animation).as_obj(),
+
     /// def confirm_action(
     ///     *,
     ///     title: str,

core/embed/rust/src/ui/model_tt/component/hold_to_confirm.rs

@@ -3,6 +3,7 @@ use crate::{
     ui::{
         component::{Child, Component, ComponentExt, Event, EventCtx, FixedHeightBar, Pad},
         geometry::{Grid, Insets, Rect},
+        util::animation_disabled,
     },
 };
 
@@ -220,7 +221,7 @@ where
             loader.start_shrinking(ctx, now);
         }
         Some(ButtonMsg::Clicked) => {
-            if loader.is_completely_grown(now) {
+            if loader.is_completely_grown(now) || animation_disabled() {
                 return true;
             } else {
                 loader.start_shrinking(ctx, now);

core/embed/rust/src/ui/model_tt/component/loader.rs

@@ -6,6 +6,7 @@ use crate::{
         display::{self, Color},
         geometry::{Offset, Rect},
         model_tt::constant,
+        util::animation_disabled,
     },
 };
 
@@ -131,7 +132,9 @@ impl Component for Loader {
         if let Event::Timer(EventCtx::ANIM_FRAME_TIMER) = event {
             if self.is_animating() {
                 // We have something to paint, so request to be painted in the next pass.
-                ctx.request_paint();
+                if !animation_disabled() {
+                    ctx.request_paint();
+                }
 
                 if self.is_completely_grown(now) {
                     return Some(LoaderMsg::GrownCompletely);

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

@@ -32,7 +32,9 @@ use crate::{
         layout::{
             obj::{ComponentMsgObj, LayoutObj},
             result::{CANCELLED, CONFIRMED, INFO},
-            util::{iter_into_array, iter_into_objs, ConfirmBlob, PropsList},
+            util::{
+                iter_into_array, iter_into_objs, upy_disable_animation, ConfirmBlob, PropsList,
+            },
         },
     },
 };
@@ -1175,6 +1177,10 @@ pub static mp_module_trezorui2: Module = obj_module! {
     /// INFO: object
     Qstr::MP_QSTR_INFO => INFO.as_obj(),
 
+    /// def disable_animation(disable: bool) -> None:
+    ///     """Disable animations, debug builds only."""
+    Qstr::MP_QSTR_disable_animation => obj_fn_1!(upy_disable_animation).as_obj(),
+
     /// def confirm_action(
     ///     *,
     ///     title: str,

core/embed/rust/src/ui/util.rs

@@ -31,6 +31,30 @@ pub fn u32_to_str(num: u32, buffer: &mut [u8]) -> Option<&str> {
     }
 }
 
+#[cfg(feature = "ui_debug")]
+static mut DISABLE_ANIMATION: bool = false;
+
+#[cfg(feature = "ui_debug")]
+pub fn animation_disabled() -> bool {
+    // SAFETY: single-threaded access
+    unsafe { DISABLE_ANIMATION }
+}
+
+#[cfg(feature = "ui_debug")]
+pub fn set_animation_disabled(disabled: bool) {
+    // SAFETY: single-threaded access
+    unsafe {
+        DISABLE_ANIMATION = disabled;
+    }
+}
+
+#[cfg(not(feature = "ui_debug"))]
+pub fn animation_disabled() -> bool {
+    false
+}
+#[cfg(not(feature = "ui_debug"))]
+pub fn set_animation_disabled(_disabled: bool) {}
+
 #[cfg(test)]
 mod tests {
     use super::*;

core/mocks/generated/trezorui2.pyi

@@ -3,6 +3,11 @@ CONFIRMED: object
 CANCELLED: object
 
 
+# rust/src/ui/model_t1/layout.rs
+def disable_animation(disable: bool) -> None:
+    """Disable animations, debug builds only."""
+
+
 # rust/src/ui/model_t1/layout.rs
 def confirm_action(
     *,
@@ -29,6 +34,11 @@ CONFIRMED: object
 CANCELLED: object
 
 
+# rust/src/ui/model_tr/layout.rs
+def disable_animation(disable: bool) -> None:
+    """Disable animations, debug builds only."""
+
+
 # rust/src/ui/model_tr/layout.rs
 def confirm_action(
     *,
@@ -56,6 +66,11 @@ CANCELLED: object
 INFO: object
 
 
+# rust/src/ui/model_tt/layout.rs
+def disable_animation(disable: bool) -> None:
+    """Disable animations, debug builds only."""
+
+
 # rust/src/ui/model_tt/layout.rs
 def confirm_action(
     *,

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

@@ -2,6 +2,7 @@ from typing import TYPE_CHECKING, Sequence
 
 from trezor import io, log, loop, ui, wire, workflow
 from trezor.enums import ButtonRequestType
+from trezor.utils import DISABLE_ANIMATION
 
 import trezorui2
 
@@ -14,6 +15,10 @@ if TYPE_CHECKING:
     ExceptionType = BaseException | Type[BaseException]
 
 
+if __debug__:
+    trezorui2.disable_animation(bool(DISABLE_ANIMATION))
+
+
 class _RustLayout(ui.Layout):
     # pylint: disable=super-init-not-called
     def __init__(self, layout: Any):

core/src/trezor/ui/layouts/tt_v2/__init__.py

@@ -24,6 +24,12 @@ CANCELLED = trezorui2.CANCELLED
 INFO = trezorui2.INFO
 
 
+if __debug__:
+    from trezor.utils import DISABLE_ANIMATION
+
+    trezorui2.disable_animation(bool(DISABLE_ANIMATION))
+
+
 class _RustLayout(ui.Layout):
     # pylint: disable=super-init-not-called
     def __init__(self, layout: Any, is_backup: bool = False):