feat: only show appropriate buttons in channel info sheet

Signed-off-by: Infi <infi@infi.sh>

app/src/main/java/chat/revolt/api/internals/Permissions.kt

@@ -67,6 +67,10 @@ fun Long.hasPermission(permission: PermissionBit): Boolean {
     return this and permission.value == permission.value
 }
 
+infix fun Long?.has(permission: PermissionBit): Boolean {
+    return this != null && this.hasPermission(permission)
+}
+
 object BitDefaults {
     val AllowedInTimeout =
         PermissionBit.ViewChannel + PermissionBit.ReadMessageHistory
@@ -76,30 +80,30 @@ object BitDefaults {
 
     val Default =
         ViewOnly +
-            PermissionBit.SendMessage +
+                PermissionBit.SendMessage +
-            PermissionBit.InviteOthers +
+                PermissionBit.InviteOthers +
-            PermissionBit.SendEmbeds +
+                PermissionBit.SendEmbeds +
-            PermissionBit.UploadFiles +
+                PermissionBit.UploadFiles +
-            PermissionBit.Connect +
+                PermissionBit.Connect +
-            PermissionBit.Speak
+                PermissionBit.Speak
 
     val SavedMessages =
         PermissionBit.GrantAllSafe.value
 
     val DirectMessages =
         Default +
-            PermissionBit.ManageChannel +
+                PermissionBit.ManageChannel +
-            PermissionBit.React
+                PermissionBit.React
 
     val Server =
         Default +
-            PermissionBit.React +
+                PermissionBit.React +
-            PermissionBit.ChangeNickname +
+                PermissionBit.ChangeNickname +
-            PermissionBit.ChangeAvatar
+                PermissionBit.ChangeAvatar
 
     val Webhook =
         PermissionBit.SendMessage +
-            PermissionBit.SendEmbeds +
+                PermissionBit.SendEmbeds +
-            PermissionBit.Masquerade +
+                PermissionBit.Masquerade +
-            PermissionBit.React
+                PermissionBit.React
 }

app/src/main/java/chat/revolt/components/screens/chat/ChannelSheetHeader.kt

@@ -8,12 +8,12 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
@@ -21,14 +21,16 @@ import androidx.compose.ui.unit.dp
 import chat.revolt.api.REVOLT_FILES
 import chat.revolt.api.schemas.AutumnResource
 import chat.revolt.api.schemas.ChannelType
+import chat.revolt.api.schemas.User
 import chat.revolt.components.generic.RemoteImage
+import chat.revolt.components.generic.UserAvatar
 
 @Composable
 fun ChannelSheetHeader(
     channelName: String,
     channelIcon: AutumnResource? = null,
     channelType: ChannelType,
-    channelId: String
+    dmPartner: User? = null
 ) {
     Row(
         modifier = Modifier.padding(vertical = 4.dp),
@@ -39,8 +41,7 @@ fun ChannelSheetHeader(
                 .size(48.dp)
                 .clip(CircleShape)
                 .background(
-                    getIconBackColour(channelId)
+                    MaterialTheme.colorScheme.primary.copy(alpha = 0.2f)
-                        .copy(alpha = if (channelIcon != null) 0.6f else 0.2f)
                 ),
             contentAlignment = Alignment.Center
         ) {
@@ -54,57 +55,28 @@ fun ChannelSheetHeader(
                     modifier = Modifier
                         .size(24.dp)
                 )
+            } else if (dmPartner != null) {
+                UserAvatar(
+                    username = User.resolveDefaultName(dmPartner),
+                    userId = dmPartner.id ?: "",
+                    avatar = dmPartner.avatar,
+                    presence = null,
+                    size = 48.dp,
+                    modifier = Modifier
+                        .size(48.dp)
+                )
             } else {
                 ChannelIcon(channelType = channelType)
             }
         }
 
-        Spacer(modifier = Modifier.width(8.dp))
+        Spacer(modifier = Modifier.width(12.dp))
 
         Text(
             text = channelName,
-            fontWeight = FontWeight.Medium,
+            fontWeight = FontWeight.SemiBold,
             maxLines = 1,
             overflow = TextOverflow.Ellipsis
         )
     }
 }
-
-fun getIconBackColour(channelId: String): Color {
-    // The ULID alphabet does not include I, L, O, or U.
-    return when (channelId.uppercase().last()) {
-        '0' -> Color(0xFFE91E63)
-        '1' -> Color(0xFF9C27B0)
-        '2' -> Color(0xFF673AB7)
-        '3' -> Color(0xFF3F51B5)
-        '4' -> Color(0xFF2196F3)
-        '5' -> Color(0xFF03A9F4)
-        '6' -> Color(0xFF00BCD4)
-        '7' -> Color(0xFF009688)
-        '8' -> Color(0xFF4CAF50)
-        '9' -> Color(0xFF8BC34A)
-        'A' -> Color(0xFFCDDC39)
-        'B' -> Color(0xFFFFEB3B)
-        'C' -> Color(0xFFFFC107)
-        'D' -> Color(0xFFFF9800)
-        'E' -> Color(0xFFFF5722)
-        'F' -> Color(0xFF795548)
-        'G' -> Color(0xFF9E9E9E)
-        'H' -> Color(0xFF607D8B)
-        'J' -> Color(0xFF9FA8DA)
-        'K' -> Color(0xFF90CAF9)
-        'M' -> Color(0xFF81D4FA)
-        'N' -> Color(0xFF80DEEA)
-        'P' -> Color(0xFF80CBC4)
-        'Q' -> Color(0xFFA5D6A7)
-        'R' -> Color(0xFFC5E1A5)
-        'S' -> Color(0xFFE6EE9C)
-        'T' -> Color(0xFFFFF59D)
-        'V' -> Color(0xFFFFE082)
-        'W' -> Color(0xFFFFCC80)
-        'X' -> Color(0xFFFFAB91)
-        'Y' -> Color(0xFFFF8A65)
-        'Z' -> Color(0xFFFF8A80)
-        else -> Color(0xFFFFFFFF)
-    }
-}

app/src/main/java/chat/revolt/screens/chat/views/channel/ChannelScreenViewModel.kt

@@ -463,8 +463,8 @@ class ChannelScreenViewModel : ViewModel() {
         }
 
         val newContent = currentContent.substring(0, currentSelection.start) +
-            content +
+                content +
-            currentContent.substring(currentSelection.end)
+                currentContent.substring(currentSelection.end)
 
         pendingMessageContent = newContent
         textSelection = TextRange(currentSelection.start + content.length)

app/src/main/java/chat/revolt/sheets/ChannelInfoSheet.kt

@@ -30,6 +30,10 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import chat.revolt.R
 import chat.revolt.api.RevoltAPI
+import chat.revolt.api.internals.ChannelUtils
+import chat.revolt.api.internals.PermissionBit
+import chat.revolt.api.internals.Roles
+import chat.revolt.api.internals.has
 import chat.revolt.api.schemas.ChannelType
 import chat.revolt.components.generic.SheetClickable
 import chat.revolt.components.screens.chat.ChannelSheetHeader
@@ -72,32 +76,43 @@ fun ChannelInfoSheet(channelId: String) {
             .padding(horizontal = 16.dp)
             .verticalScroll(rememberScrollState())
     ) {
+        val isDM = ChannelUtils.resolveDMPartner(channel) != null
+        val partner = ChannelUtils
+            .resolveDMPartner(channel)
+            ?.let {
+                RevoltAPI.userCache[it]
+            }
+
         ChannelSheetHeader(
-            channelName = channel.name ?: stringResource(id = R.string.unknown),
+            channelName = channel.name
+                ?: ChannelUtils.resolveDMName(channel)
+                ?: stringResource(id = R.string.unknown),
             channelIcon = channel.icon,
             channelType = channel.channelType ?: ChannelType.TextChannel,
-            channelId = channel.id ?: "9"
+            dmPartner = partner
         )
 
-        Spacer(modifier = Modifier.height(8.dp))
+        if (!isDM) {
+            Spacer(modifier = Modifier.height(12.dp))
 
-        Text(
+            Text(
-            text = stringResource(id = R.string.channel_info_sheet_description),
+                text = stringResource(id = R.string.channel_info_sheet_description),
-            style = MaterialTheme.typography.bodySmall,
+                style = MaterialTheme.typography.bodySmall,
-            modifier = Modifier.padding(bottom = 10.dp)
+                modifier = Modifier.padding(bottom = 10.dp)
-        )
+            )
-        Text(
+            Text(
-            text = if (channel.description.isNullOrBlank()) {
+                text = if (channel.description.isNullOrBlank()) {
-                stringResource(
+                    stringResource(
-                    id = R.string.channel_info_sheet_description_empty
+                        id = R.string.channel_info_sheet_description_empty
-                )
+                    )
-            } else {
+                } else {
-                channel.description
+                    channel.description
-            },
+                },
-            modifier = Modifier.padding(bottom = 10.dp)
+                modifier = Modifier.padding(bottom = 10.dp)
-        )
+            )
+        }
 
-        Spacer(modifier = Modifier.height(8.dp))
+        Spacer(modifier = Modifier.height(12.dp))
 
         Text(
             text = stringResource(id = R.string.channel_info_sheet_options),
@@ -129,21 +144,53 @@ fun ChannelInfoSheet(channelId: String) {
             else -> {}
         }
 
-        SheetClickable(
+        if (
-            icon = { modifier ->
+            Roles.permissionFor(
-                Icon(
+                channel,
-                    imageVector = Icons.Default.Add,
+                RevoltAPI.userCache[RevoltAPI.selfId]
-                    contentDescription = null,
+            ) has PermissionBit.InviteOthers
-                    modifier = modifier
-                )
-            },
-            label = { style ->
-                Text(
-                    text = stringResource(id = R.string.channel_info_sheet_options_invite),
-                    style = style
-                )
-            }
         ) {
+            when (channel.channelType) {
+                ChannelType.TextChannel, ChannelType.VoiceChannel -> {
+                    SheetClickable(
+                        icon = { modifier ->
+                            Icon(
+                                imageVector = Icons.Default.Add,
+                                contentDescription = null,
+                                modifier = modifier
+                            )
+                        },
+                        label = { style ->
+                            Text(
+                                text = stringResource(id = R.string.channel_info_sheet_options_invite),
+                                style = style
+                            )
+                        }
+                    ) {
+                    }
+                }
+
+                ChannelType.Group -> {
+                    SheetClickable(
+                        icon = { modifier ->
+                            Icon(
+                                imageVector = Icons.Default.Add,
+                                contentDescription = null,
+                                modifier = modifier
+                            )
+                        },
+                        label = { style ->
+                            Text(
+                                text = stringResource(id = R.string.channel_info_sheet_options_add),
+                                style = style
+                            )
+                        }
+                    ) {
+                    }
+                }
+
+                else -> {}
+            }
         }
 
         SheetClickable(

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

@@ -233,6 +233,7 @@
     <string name="channel_info_sheet_options">Options</string>
     <string name="channel_info_sheet_options_members">Members</string>
     <string name="channel_info_sheet_options_invite">Invite</string>
+    <string name="channel_info_sheet_options_add">Add members</string>
     <string name="channel_info_sheet_options_notifications_manage">Manage notifications</string>
 
     <string name="message_context_sheet_actions_copy">Copy</string>