Enforce Android lifecycle and presentation security (#100)

crates/mobile-bridge/src/platform.rs

@@ -282,6 +282,8 @@ pub enum MobileLifecycleEvent {
     Foreground,
     Background,
     DeviceLocked,
+    MemoryPressure,
+    ProcessRecreated,
     UserActivity,
     Cancel,
 }
@@ -291,6 +293,8 @@ impl From<MobileLifecycleEvent> for storage::MobileLifecycleEvent {
             MobileLifecycleEvent::Foreground => Self::Foreground,
             MobileLifecycleEvent::Background => Self::Background,
             MobileLifecycleEvent::DeviceLocked => Self::DeviceLocked,
+            MobileLifecycleEvent::MemoryPressure => Self::MemoryPressure,
+            MobileLifecycleEvent::ProcessRecreated => Self::ProcessRecreated,
             MobileLifecycleEvent::UserActivity => Self::UserActivity,
             MobileLifecycleEvent::Cancel => Self::Cancel,
         }
@@ -404,6 +408,21 @@ pub fn copy_mobile_entry_clearing(
     copy_entry(copy, clipboard, true)
 }
 
+/// Revoke a copy while the Android window still has foreground clipboard access.
+#[uniffi::export]
+pub fn clear_mobile_entry_copy(
+    copy: MobileEntryCopy,
+    clipboard: Arc<dyn MobileClipboard>,
+) -> Result<(), MobilePlatformFfiError> {
+    presentation::ClipboardManager::new(
+        ClipboardAdapter(clipboard),
+        presentation::ClipboardTimeout::default(),
+    )
+    .clear_current_copy(&SecretBytes::new(copy.value.into_bytes()))
+    .map(|_| ())
+    .map_err(|_| MobilePlatformFfiError::ClipboardFailed)
+}
+
 fn copy_entry(
     copy: MobileEntryCopy,
     clipboard: Arc<dyn MobileClipboard>,