Merge pull request #1932 from vitorpamplona/claude/add-anonymous-reply-dkdSJ

feat: activate anonymous reply by tapping user picture

amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -139,6 +139,7 @@ import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
 import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
 import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
+import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal
 import com.vitorpamplona.quartz.nip01Core.tags.hashtags.hashtags
 import com.vitorpamplona.quartz.nip01Core.tags.people.taggedUserIds
 import com.vitorpamplona.quartz.nip01Core.tags.references.references
@@ -1292,6 +1293,21 @@ class Account(
         return event
     }
 
+    suspend fun <T : Event> signAnonymouslyAndBroadcast(
+        template: EventTemplate<T>,
+        broadcast: List<Event> = emptyList(),
+    ): T {
+        val anonymousSigner = NostrSignerInternal(KeyPair())
+        val event = anonymousSigner.sign(template)
+
+        val relayList = nip65RelayList.outboxFlow.value.toSet()
+
+        client.send(event, relayList)
+        broadcast.forEach { client.send(it, relayList) }
+
+        return event
+    }
+
     /**
      * Creates a post event without sending it.
      * Returns the event, target relays, and extra events to broadcast.

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/creators/anonymous/AnonymousPostButton.kt

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.note.creators.anonymous
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.PersonOff
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.amethyst.ui.theme.Size19Modifier
+
+@Composable
+fun AnonymousPostButton(
+    isActive: Boolean,
+    onClick: () -> Unit,
+) {
+    IconButton(
+        onClick = { onClick() },
+    ) {
+        if (!isActive) {
+            Icon(
+                imageVector = Icons.Default.PersonOff,
+                contentDescription = stringRes(R.string.post_anonymously),
+                modifier = Size19Modifier,
+                tint = MaterialTheme.colorScheme.onBackground,
+            )
+        } else {
+            Icon(
+                imageVector = Icons.Default.PersonOff,
+                contentDescription = stringRes(R.string.post_anonymously),
+                modifier = Size19Modifier,
+                tint = Color.Red,
+            )
+        }
+    }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/ShortNotePostScreen.kt

@@ -25,7 +25,10 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Parcelable
 import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
@@ -46,6 +49,7 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -106,6 +110,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.SettingsRow
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.amethyst.ui.theme.Size10dp
 import com.vitorpamplona.amethyst.ui.theme.Size19Modifier
+import com.vitorpamplona.amethyst.ui.theme.Size35Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size35dp
 import com.vitorpamplona.amethyst.ui.theme.StdVertSpacer
 import com.vitorpamplona.amethyst.ui.theme.SuggestionListDefaultHeightPage
@@ -283,16 +288,53 @@ private fun NewPostScreenBody(
                     }
                 }
 
+                if (postViewModel.wantsAnonymousPost) {
+                    Row(
+                        modifier =
+                            Modifier
+                                .fillMaxWidth()
+                                .background(MaterialTheme.colorScheme.errorContainer)
+                                .padding(horizontal = Size10dp, vertical = 8.dp),
+                        verticalAlignment = CenterVertically,
+                    ) {
+                        Text(
+                            text = stringRes(R.string.anonymous_reply_warning),
+                            color = MaterialTheme.colorScheme.onErrorContainer,
+                            style = MaterialTheme.typography.bodySmall,
+                        )
+                    }
+                }
+
                 // Only show text input if no voice message is being posted
                 if (postViewModel.voiceMetadata == null && postViewModel.voiceRecording == null) {
                     Row(
                         modifier = Modifier.padding(vertical = Size10dp),
                     ) {
-                        BaseUserPicture(
+                        if (postViewModel.wantsAnonymousPost) {
-                            accountViewModel.userProfile(),
+                            IconButton(
-                            Size35dp,
+                                onClick = { postViewModel.wantsAnonymousPost = false },
-                            accountViewModel = accountViewModel,
+                            ) {
-                        )
+                                Icon(
+                                    painter = painterRes(resourceId = R.drawable.incognito, 1),
+                                    contentDescription = stringRes(R.string.post_anonymously),
+                                    modifier = Size35Modifier,
+                                    tint = MaterialTheme.colorScheme.onBackground,
+                                )
+                            }
+                        } else {
+                            Box(
+                                modifier =
+                                    Modifier.clickable {
+                                        postViewModel.wantsAnonymousPost = true
+                                    },
+                            ) {
+                                BaseUserPicture(
+                                    accountViewModel.userProfile(),
+                                    Size35dp,
+                                    accountViewModel = accountViewModel,
+                                )
+                            }
+                        }
                         MessageField(
                             R.string.what_s_on_your_mind,
                             postViewModel,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/ShortNotePostViewModel.kt

@@ -285,6 +285,9 @@ open class ShortNotePostViewModel :
     var wantsZapRaiser by mutableStateOf(false)
     override val zapRaiserAmount = mutableStateOf<Long?>(null)
 
+    // Anonymous Reply
+    var wantsAnonymousPost by mutableStateOf(false)
+
     fun lnAddress(): String? = account.userProfile().lnAddress()
 
     fun hasLnAddress(): Boolean = account.userProfile().lnAddress() != null
@@ -716,9 +719,12 @@ open class ShortNotePostViewModel :
         }
 
         val version = draftTag.current
+        val anonymous = wantsAnonymousPost
         cancel()
 
-        if (accountViewModel.settings.isCompleteUIMode()) {
+        if (anonymous) {
+            accountViewModel.account.signAnonymouslyAndBroadcast(template, extraNotesToBroadcast)
+        } else if (accountViewModel.settings.isCompleteUIMode()) {
             // Tracked broadcasting with progress feedback (non-blocking)
             val (event, relays, extras) = accountViewModel.account.createPostEvent(template, extraNotesToBroadcast)
 
@@ -1078,6 +1084,7 @@ open class ShortNotePostViewModel :
         wantsToAddGeoHash = false
         wantsExclusiveGeoPost = false
         wantsSecretEmoji = false
+        wantsAnonymousPost = false
 
         forwardZapTo.value = SplitBuilder()
         forwardZapToEditting.value = TextFieldValue("")

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

@@ -541,6 +541,10 @@
     <string name="zap_type_nonzap_explainer">No trace in Nostr, only in Lightning</string>
 
 
+    <string name="post_anonymously">Anonymous</string>
+    <string name="post_anonymously_explainer">Post as a new throwaway identity. Your account will not be linked to this reply.</string>
+    <string name="anonymous_reply_warning">This reply will be posted from a new anonymous identity</string>
+
     <string name="file_server">File Server</string>
     <string name="file_server_description">Choose a server to upload this file to</string>