feat: add encryption status icon and dialog to node list items

app/src/main/java/com/geeksville/mesh/ui/components/NodeKeyStatusIcon.kt

@@ -0,0 +1,42 @@
+package com.geeksville.mesh.ui.components
+
+import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyOff
+import androidx.compose.material.icons.filled.Lock
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.rememberVectorPainter
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import com.geeksville.mesh.R
+
+@Composable
+fun NodeKeyStatusIcon(
+    hasPKC: Boolean,
+    mismatchKey: Boolean,
+    modifier: Modifier = Modifier,
+    onClick: () -> Unit = {},
+) = IconButton(
+    onClick = onClick,
+    modifier = modifier,
+) {
+    val (icon, tint) = when {
+        mismatchKey -> rememberVectorPainter(Icons.Default.KeyOff) to Color.Red
+        hasPKC -> rememberVectorPainter(Icons.Default.Lock) to Color.Green
+        else -> painterResource(R.drawable.ic_lock_open_right_24) to Color.Yellow
+    }
+    Icon(
+        painter = icon,
+        contentDescription = stringResource(
+            id = when {
+                mismatchKey -> R.string.encryption_error
+                hasPKC -> R.string.encryption_pkc
+                else -> R.string.encryption_psk
+            }
+        ),
+        tint = tint,
+    )
+}