Y333/new nbgl

ledger_device_sdk/src/nbgl.rs

@@ -32,10 +32,6 @@ pub use nbgl_status::*;
 pub use nbgl_streaming_review::*;
 
 static mut COMM_REF: Option<&mut Comm> = None;
-pub const SETTINGS_SIZE: usize = 10;
-static mut NVM_REF: Option<&mut AtomicStorage<[u8; SETTINGS_SIZE]>> = None;
-static mut SWITCH_ARRAY: [nbgl_contentSwitch_t; SETTINGS_SIZE] =
-    [unsafe { const_zero!(nbgl_contentSwitch_t) }; SETTINGS_SIZE];
 
 #[derive(Copy, Clone)]
 enum SyncNbgl {

ledger_device_sdk/src/nbgl/nbgl_home_and_settings.rs

@@ -1,5 +1,10 @@
 use super::*;
 
+pub const SETTINGS_SIZE: usize = 10;
+static mut NVM_REF: Option<&mut AtomicStorage<[u8; SETTINGS_SIZE]>> = None;
+static mut SWITCH_ARRAY: [nbgl_contentSwitch_t; SETTINGS_SIZE] =
+    [unsafe { const_zero!(nbgl_contentSwitch_t) }; SETTINGS_SIZE];
+
 /// Callback triggered by the NBGL API when a setting switch is toggled.
 unsafe extern "C" fn settings_callback(token: c_int, _index: u8, _page: c_int) {
     let idx = token - FIRST_USER_TOKEN as i32;
@@ -49,6 +54,10 @@ pub struct NbglHomeAndSettings {
 
 impl SyncNBGL for NbglHomeAndSettings {}
 
+unsafe extern "C" fn quit_cb() {
+    exit_app(0);
+}
+
 impl<'a> NbglHomeAndSettings {
     pub fn new() -> NbglHomeAndSettings {
         NbglHomeAndSettings {
@@ -111,6 +120,10 @@ impl<'a> NbglHomeAndSettings {
         }
     }
 
+    /// Show the home screen and settings page.
+    /// This function will block until an APDU is received or the user quits the app.
+    /// DEPRECATED as it constraints to refresh screen for every received APDU.
+    /// Use `display` instead.
     pub fn show<T: TryFrom<ApduHeader>>(&mut self) -> Event<T>
     where
         Reply: From<<T as TryFrom<ApduHeader>>::Error>,
@@ -190,4 +203,65 @@ impl<'a> NbglHomeAndSettings {
             }
         }
     }
+
+    /// Show the home screen and settings page.
+    /// This function returns immediately after the screen is displayed.
+    pub fn display(&mut self) {
+        unsafe {
+            self.info_contents_ptr = self
+                .info_contents
+                .iter()
+                .map(|s| s.as_ptr())
+                .collect::<Vec<_>>();
+
+            self.info_list = nbgl_contentInfoList_t {
+                infoTypes: INFO_FIELDS.as_ptr() as *const *const c_char,
+                infoContents: self.info_contents_ptr[..].as_ptr() as *const *const c_char,
+                nbInfos: INFO_FIELDS.len() as u8,
+            };
+
+            for (i, setting) in self.setting_contents.iter().enumerate() {
+                SWITCH_ARRAY[i].text = setting[0].as_ptr();
+                SWITCH_ARRAY[i].subText = setting[1].as_ptr();
+                let state = if let Some(data) = NVM_REF.as_mut() {
+                    data.get_ref()[i]
+                } else {
+                    OFF_STATE
+                };
+                SWITCH_ARRAY[i].initState = state;
+                SWITCH_ARRAY[i].token = (FIRST_USER_TOKEN + i as u32) as u8;
+                SWITCH_ARRAY[i].tuneId = TuneIndex::TapCasual as u8;
+            }
+
+            self.content = nbgl_content_t {
+                content: nbgl_content_u {
+                    switchesList: nbgl_pageSwitchesList_s {
+                        switches: &SWITCH_ARRAY as *const nbgl_contentSwitch_t,
+                        nbSwitches: self.nb_settings,
+                    },
+                },
+                contentActionCallback: Some(settings_callback),
+                type_: SWITCHES_LIST,
+            };
+
+            self.generic_contents = nbgl_genericContents_t {
+                callbackCallNeeded: false,
+                __bindgen_anon_1: nbgl_genericContents_t__bindgen_ty_1 {
+                    contentsList: &self.content as *const nbgl_content_t,
+                },
+                nbContents: if self.nb_settings > 0 { 1 } else { 0 },
+            };
+
+            nbgl_useCaseHomeAndSettings(
+                self.app_name.as_ptr() as *const c_char,
+                &self.icon as *const nbgl_icon_details_t,
+                core::ptr::null(),
+                INIT_HOME_PAGE as u8,
+                &self.generic_contents as *const nbgl_genericContents_t,
+                &self.info_list as *const nbgl_contentInfoList_t,
+                core::ptr::null(),
+                Some(quit_cb),
+            );
+        }
+    }
 }