Request Camera permission before launching the external Camera app (#1395)

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/edit/RoomDetailsEditPresenter.kt

@@ -39,6 +39,8 @@ import io.element.android.libraries.matrix.api.room.powerlevels.canSendState
 import io.element.android.libraries.matrix.ui.media.AvatarAction
 import io.element.android.libraries.mediapickers.api.PickerProvider
 import io.element.android.libraries.mediaupload.api.MediaPreProcessor
+import io.element.android.libraries.permissions.api.PermissionsEvents
+import io.element.android.libraries.permissions.api.PermissionsPresenter
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
@@ -49,10 +51,14 @@ class RoomDetailsEditPresenter @Inject constructor(
     private val room: MatrixRoom,
     private val mediaPickerProvider: PickerProvider,
     private val mediaPreProcessor: MediaPreProcessor,
+    permissionsPresenterFactory: PermissionsPresenter.Factory,
 ) : Presenter<RoomDetailsEditState> {
 
+    private val cameraPermissionPresenter = permissionsPresenterFactory.create(android.Manifest.permission.CAMERA)
+
     @Composable
     override fun present(): RoomDetailsEditState {
+        val cameraPermissionState = cameraPermissionPresenter.present()
         val roomSyncUpdateFlow = room.syncUpdateFlow.collectAsState()
 
         // Since there is no way to obtain the new avatar uri after uploading a new avatar,
@@ -110,7 +116,11 @@ class RoomDetailsEditPresenter @Inject constructor(
                 is RoomDetailsEditEvents.HandleAvatarAction -> {
                     when (event.action) {
                         AvatarAction.ChoosePhoto -> galleryImagePicker.launch()
-                        AvatarAction.TakePhoto -> cameraPhotoPicker.launch()
+                        AvatarAction.TakePhoto -> if (cameraPermissionState.permissionGranted) {
+                            cameraPhotoPicker.launch()
+                        } else {
+                            cameraPermissionState.eventSink(PermissionsEvents.OpenSystemDialog)
+                        }
                         AvatarAction.Remove -> roomAvatarUri = null
                     }
                 }
@@ -132,6 +142,7 @@ class RoomDetailsEditPresenter @Inject constructor(
             avatarActions = avatarActions,
             saveButtonEnabled = saveButtonEnabled,
             saveAction = saveAction.value,
+            cameraPermissionState = cameraPermissionState,
             eventSink = ::handleEvents,
         )
     }

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/edit/RoomDetailsEditState.kt

@@ -17,8 +17,9 @@
 package io.element.android.features.roomdetails.impl.edit
 
 import android.net.Uri
-import io.element.android.libraries.matrix.ui.media.AvatarAction
 import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.matrix.ui.media.AvatarAction
+import io.element.android.libraries.permissions.api.PermissionsState
 import kotlinx.collections.immutable.ImmutableList
 
 data class RoomDetailsEditState(
@@ -32,5 +33,6 @@ data class RoomDetailsEditState(
     val avatarActions: ImmutableList<AvatarAction>,
     val saveButtonEnabled: Boolean,
     val saveAction: Async<Unit>,
+    val cameraPermissionState: PermissionsState,
     val eventSink: (RoomDetailsEditEvents) -> Unit
 )

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/edit/RoomDetailsEditStateProvider.kt

@@ -19,6 +19,7 @@ package io.element.android.features.roomdetails.impl.edit
 import android.net.Uri
 import androidx.compose.ui.tooling.preview.PreviewParameterProvider
 import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.permissions.api.aPermissionsState
 import kotlinx.collections.immutable.persistentListOf
 
 open class RoomDetailsEditStateProvider : PreviewParameterProvider<RoomDetailsEditState> {
@@ -45,5 +46,6 @@ fun aRoomDetailsEditState() = RoomDetailsEditState(
     avatarActions = persistentListOf(),
     saveButtonEnabled = true,
     saveAction = Async.Uninitialized,
+    cameraPermissionState = aPermissionsState(showDialog = false),
     eventSink = {}
 )

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/edit/RoomDetailsEditView.kt

@@ -62,6 +62,7 @@ import io.element.android.libraries.designsystem.theme.components.TextButton
 import io.element.android.libraries.designsystem.theme.components.TopAppBar
 import io.element.android.libraries.matrix.ui.components.AvatarActionBottomSheet
 import io.element.android.libraries.matrix.ui.components.EditableAvatarView
+import io.element.android.libraries.permissions.api.PermissionsView
 import io.element.android.libraries.theme.ElementTheme
 import io.element.android.libraries.ui.strings.CommonStrings
 import kotlinx.coroutines.launch
@@ -193,6 +194,8 @@ fun RoomDetailsEditView(
 
         else -> Unit
     }
+
+    PermissionsView(state = state.cameraPermissionState)
 }
 
 @Composable

features/roomdetails/impl/src/test/kotlin/io/element/android/features/roomdetails/edit/RoomDetailsEditPresenterTest.kt

@@ -32,6 +32,8 @@ import io.element.android.libraries.matrix.ui.media.AvatarAction
 import io.element.android.libraries.mediapickers.test.FakePickerProvider
 import io.element.android.libraries.mediaupload.api.MediaUploadInfo
 import io.element.android.libraries.mediaupload.test.FakeMediaPreProcessor
+import io.element.android.libraries.permissions.api.PermissionsPresenter
+import io.element.android.libraries.permissions.test.FakePermissionsPresenter
 import io.element.android.tests.testutils.WarmUpRule
 import io.mockk.every
 import io.mockk.mockk
@@ -74,11 +76,19 @@ class RoomDetailsEditPresenterTest {
         unmockkAll()
     }
 
-    private fun aRoomDetailsEditPresenter(room: MatrixRoom): RoomDetailsEditPresenter {
+    private fun aRoomDetailsEditPresenter(
+        room: MatrixRoom,
+        permissionsPresenter: PermissionsPresenter = FakePermissionsPresenter(),
+    ): RoomDetailsEditPresenter {
         return RoomDetailsEditPresenter(
             room = room,
             mediaPickerProvider = fakePickerProvider,
             mediaPreProcessor = fakeMediaPreProcessor,
+            permissionsPresenterFactory = object : PermissionsPresenter.Factory {
+                override fun create(permission: String): PermissionsPresenter {
+                    return permissionsPresenter
+                }
+            },
         )
     }
 
@@ -252,16 +262,22 @@ class RoomDetailsEditPresenterTest {
         val room = aMatrixRoom(topic = "My topic", name = "Name", avatarUrl = AN_AVATAR_URL)
 
         fakePickerProvider.givenResult(anotherAvatarUri)
-
-        val presenter = aRoomDetailsEditPresenter(room)
+        val fakePermissionsPresenter = FakePermissionsPresenter()
+        val presenter = aRoomDetailsEditPresenter(
+            room = room,
+            permissionsPresenter = fakePermissionsPresenter,
+        )
 
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
             val initialState = awaitItem()
             assertThat(initialState.roomAvatarUrl).isEqualTo(roomAvatarUri)
-
-            initialState.eventSink(RoomDetailsEditEvents.HandleAvatarAction(AvatarAction.TakePhoto))
+            assertThat(initialState.cameraPermissionState.permissionGranted).isFalse()
+            fakePermissionsPresenter.setPermissionGranted()
+            val stateWithPermission = awaitItem()
+            assertThat(stateWithPermission.cameraPermissionState.permissionGranted).isTrue()
+            stateWithPermission.eventSink(RoomDetailsEditEvents.HandleAvatarAction(AvatarAction.TakePhoto))
             awaitItem().apply {
                 assertThat(roomAvatarUrl).isEqualTo(anotherAvatarUri)
             }