support: Monero, in a popup with the full address, Open in wallet and Copy address

gearslip/src/main/java/app/seb3thehacker/gearslip/ui/AboutLinks.kt

@@ -12,10 +12,25 @@ import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.automirrored.filled.Send
 import androidx.compose.material.icons.filled.Build
 import androidx.compose.material.icons.filled.Favorite
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.text.selection.SelectionContainer
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.unit.dp
 import androidx.compose.ui.platform.LocalContext
 
 /** Where Gearslip lives outside the app: support, the chat room, and the code. */
@@ -24,7 +39,7 @@ internal object GearslipLinks {
     /** A card payment page for giving once, any amount. Its row stays hidden while this is empty. */
     const val PAYMENT_LINK = ""
     /** Gearslip's Monero address. Its row stays hidden while this is empty. */
-    const val MONERO = ""
+    const val MONERO = "44gTVxQJY3cirBJ41J5i1bPUVnSkTMhn9esSp1kg9MHwJ3TUz8tkkigUTKwiok5zA5RZvNxyM4pqkAfPs79pPLfaNG21pCn"
     const val MATRIX = "https://matrix.to/#/!mf0_mgBd5KqKpc9FfX_wHp1jFCcwAtPrndIn_oGIyMk?via=matrix.org"
     const val SOURCE = "https://github.com/Seb3thehacker/gearslip"
     const val CARS = "$SOURCE/blob/main/CARS.md"
@@ -35,12 +50,16 @@ internal object GearslipLinks {
         }
     }
 
-    /** Opens a Monero wallet on the address, or copies it when no wallet app is installed. */
-    fun openMonero(context: Context) {
-        val opened = runCatching {
+    /** Opens a Monero wallet app on the address; says so when none is installed. */
+    fun openMoneroWallet(context: Context) {
+        runCatching {
             context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse("monero:$MONERO")).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
-        }.isSuccess
-        if (opened) return
+        }.onFailure {
+            Toast.makeText(context, "No Monero wallet app found. Copy the address instead.", Toast.LENGTH_LONG).show()
+        }
+    }
+
+    fun copyMonero(context: Context) {
         context.getSystemService(ClipboardManager::class.java)
             ?.setPrimaryClip(ClipData.newPlainText("Monero address", MONERO))
         Toast.makeText(context, "Monero address copied", Toast.LENGTH_SHORT).show()
@@ -76,17 +95,55 @@ internal fun DonateRows() {
         )
     }
     if (GearslipLinks.MONERO.isNotEmpty()) {
+        var moneroOpen by remember { mutableStateOf(false) }
         SettingsDivider()
         SettingsRow(
             "Monero",
-            Modifier.clickable { GearslipLinks.openMonero(context) },
-            subtitle = "Opens your wallet, or copies the address",
+            Modifier.clickable { moneroOpen = true },
+            subtitle = "Open your wallet or copy the address",
             icon = Icons.Filled.Favorite,
             trailing = arrow,
         )
+        if (moneroOpen) MoneroDialog { moneroOpen = false }
     }
 }
 
+/** The Monero address in full, with ways to pay it from this phone or another device. */
+@Composable
+private fun MoneroDialog(onDismiss: () -> Unit) {
+    val context = LocalContext.current
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        icon = { Icon(Icons.Filled.Favorite, contentDescription = null) },
+        title = { Text("Support with Monero") },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(12.dp)) {
+                Text("Send any amount to this address from your Monero wallet.")
+                SelectionContainer {
+                    Text(
+                        GearslipLinks.MONERO,
+                        style = MaterialTheme.typography.bodySmall.copy(fontFamily = FontFamily.Monospace),
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        },
+        confirmButton = {
+            Column(Modifier.fillMaxWidth(), verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                Button(onClick = { GearslipLinks.openMoneroWallet(context) }, Modifier.fillMaxWidth()) {
+                    Text("Open in wallet")
+                }
+                OutlinedButton(onClick = { GearslipLinks.copyMonero(context) }, Modifier.fillMaxWidth()) {
+                    Text("Copy address")
+                }
+                TextButton(onClick = onDismiss, Modifier.fillMaxWidth()) {
+                    Text("Close")
+                }
+            }
+        },
+    )
+}
+
 /** The About section's links: the chat room, the source code, and credits. */
 @Composable
 internal fun AboutLinkRows() {