Add key manager UI

app/build.gradle.kts

@@ -27,6 +27,14 @@ android {
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
   }
 
+  buildFeatures {
+    compose = true
+    composeOptions {
+      useLiveLiterals = false
+      kotlinCompilerExtensionVersion = libs.compose.compiler.get().versionConstraint.requiredVersion
+    }
+  }
+
   namespace = "app.passwordstore"
 
   lint {
@@ -52,6 +60,7 @@ dependencies {
   implementation(projects.passgen.random)
   implementation(projects.uiCompose)
   implementation(libs.androidx.activity.ktx)
+  implementation(libs.androidx.activity.compose)
   implementation(libs.androidx.appcompat)
   implementation(libs.androidx.autofill)
   implementation(libs.androidx.biometricKtx)

app/src/main/AndroidManifest.xml

@@ -163,6 +163,11 @@
     <activity
       android:name=".ui.pgp.PGPKeyImportActivity"
       android:theme="@style/NoBackgroundThemeM3" />
+    <activity
+      android:name=".ui.pgp.PGPKeyListActivity"
+      android:exported="false"
+      android:label="@string/activity_label_pgp_key_manager"
+      android:parentActivityName=".ui.settings.SettingsActivity" />
   </application>
 
   <queries>

app/src/main/java/app/passwordstore/ui/pgp/PGPKeyListActivity.kt

@@ -0,0 +1,44 @@
+package app.passwordstore.ui.pgp
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Scaffold
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import app.passwordstore.ui.compose.theme.APSTheme
+import app.passwordstore.util.viewmodel.PGPKeyListViewModel
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+@OptIn(ExperimentalMaterial3Api::class)
+class PGPKeyListActivity : ComponentActivity() {
+
+  private val viewModel: PGPKeyListViewModel by viewModels()
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    setContent {
+      APSTheme {
+        Scaffold { paddingValues ->
+          PGPKeyList(viewModel = viewModel, modifier = Modifier.padding(paddingValues))
+        }
+      }
+    }
+  }
+}
+
+@Composable
+fun PGPKeyList(
+  viewModel: PGPKeyListViewModel,
+  modifier: Modifier = Modifier,
+) {
+  KeyList(
+    identifiers = viewModel.keys,
+    onItemClick = viewModel::deleteKey,
+    modifier = modifier,
+  )
+}

app/src/main/java/app/passwordstore/ui/settings/PGPSettings.kt

@@ -7,6 +7,7 @@ package app.passwordstore.ui.settings
 
 import androidx.fragment.app.FragmentActivity
 import app.passwordstore.ui.pgp.PGPKeyImportActivity
+import app.passwordstore.ui.pgp.PGPKeyListActivity
 import app.passwordstore.util.extensions.launchActivity
 import de.Maxr1998.modernpreferences.PreferenceScreen
 import de.Maxr1998.modernpreferences.helpers.onClick
@@ -24,6 +25,14 @@ class PGPSettings(private val activity: FragmentActivity) : SettingsProvider {
           false
         }
       }
+      pref("__") {
+        title = "Key manager"
+        persistent = false
+        onClick {
+          activity.launchActivity(PGPKeyListActivity::class.java)
+          false
+        }
+      }
     }
   }
 }

app/src/main/java/app/passwordstore/util/extensions/AndroidExtensions.kt

@@ -15,6 +15,7 @@ import android.util.Base64
 import android.util.TypedValue
 import android.view.View
 import android.view.autofill.AutofillManager
+import androidx.activity.ComponentActivity
 import androidx.annotation.RequiresApi
 import androidx.core.content.ContextCompat
 import androidx.core.content.getSystemService
@@ -120,7 +121,7 @@ fun FragmentActivity.snackbar(
 }
 
 /** Launch an activity denoted by [clazz]. */
-fun <T : FragmentActivity> FragmentActivity.launchActivity(clazz: Class<T>) {
+fun <T : ComponentActivity> ComponentActivity.launchActivity(clazz: Class<T>) {
   startActivity(Intent(this, clazz))
 }
 

app/src/main/java/app/passwordstore/util/viewmodel/PGPKeyListViewModel.kt

@@ -0,0 +1,46 @@
+package app.passwordstore.util.viewmodel
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import app.passwordstore.crypto.GpgIdentifier
+import app.passwordstore.crypto.KeyUtils
+import app.passwordstore.crypto.PGPKeyManager
+import com.github.michaelbull.result.Err
+import com.github.michaelbull.result.Ok
+import com.github.michaelbull.result.map
+import dagger.hilt.android.lifecycle.HiltViewModel
+import javax.inject.Inject
+import kotlinx.coroutines.launch
+
+@HiltViewModel
+class PGPKeyListViewModel @Inject constructor(private val keyManager: PGPKeyManager) : ViewModel() {
+  var keys: List<GpgIdentifier> by mutableStateOf(emptyList())
+
+  init {
+    getKeys()
+  }
+
+  private fun getKeys() {
+    viewModelScope.launch {
+      when (
+        val result =
+          keyManager.getAllKeys().map { keys ->
+            keys.mapNotNull { key -> KeyUtils.tryGetEmail(key) }
+          }
+      ) {
+        is Ok -> keys = result.value
+        is Err -> TODO()
+      }
+    }
+  }
+
+  fun deleteKey(identifier: GpgIdentifier) {
+    viewModelScope.launch {
+      keyManager.removeKey(identifier)
+      getKeys()
+    }
+  }
+}

app/src/main/res/values/strings.xml

@@ -378,5 +378,6 @@
   <string name="pref_category_pgp_title">PGP settings</string>
   <string name="pwgen_some_error_occurred">Some error occurred</string>
   <string name="git_run_gc_job">Run garbage collection job</string>
+  <string name="activity_label_pgp_key_manager">PGP Key Manager</string>
 
 </resources>