feat: gigamoji

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

app/src/main/java/chat/revolt/components/chat/Message.kt

@@ -78,6 +78,7 @@ import chat.revolt.components.generic.UserAvatar
 import chat.revolt.components.generic.UserAvatarWidthPlaceholder
 import chat.revolt.components.markdown.LocalMarkdownTreeConfig
 import chat.revolt.components.markdown.RichMarkdown
+import chat.revolt.internals.text.Gigamoji
 import kotlinx.coroutines.launch
 import chat.revolt.api.schemas.Message as MessageSchema
 
@@ -362,7 +363,11 @@ fun Message(
 
                                 CompositionLocalProvider(
                                     LocalMarkdownTreeConfig provides LocalMarkdownTreeConfig.current.copy(
-                                        currentServer = RevoltAPI.channelCache[message.channel]?.server
+                                        currentServer = RevoltAPI.channelCache[message.channel]?.server,
+                                        fontSizeMultiplier = Gigamoji.useGigamojiForMessage(message.content)
+                                            .let {
+                                                if (it) 2f else 1f
+                                            }
                                     )
                                 ) {
                                     Spacer(modifier = Modifier.height(2.dp))

app/src/main/java/chat/revolt/components/markdown/MarkdownTree.kt

@@ -28,7 +28,8 @@ import chat.revolt.ndk.AstNode
 
 data class MarkdownTreeConfig(
     val linksClickable: Boolean = true,
-    val currentServer: String? = null
+    val currentServer: String? = null,
+    val fontSizeMultiplier: Float = 1f
 )
 
 val LocalMarkdownTreeConfig =
@@ -47,12 +48,12 @@ fun MarkdownTree(node: AstNode) {
                 LocalTextStyle provides LocalTextStyle.current.copy(
                     fontWeight = FontWeight.Bold,
                     fontSize = when (node.level) {
-                        1 -> 32.sp
-                        2 -> 24.sp
-                        3 -> 20.sp
-                        4 -> 16.sp
-                        5 -> 14.sp
-                        else -> 12.sp
+                        1 -> 32.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                        2 -> 24.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                        3 -> 20.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                        4 -> 16.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                        5 -> 14.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                        else -> 12.sp * LocalMarkdownTreeConfig.current.fontSizeMultiplier
                     }
                 )
             ) {
@@ -67,17 +68,23 @@ fun MarkdownTree(node: AstNode) {
         }
 
         "paragraph" -> {
-            MarkdownText(
-                node,
-                modifier = Modifier
-                    .then(
-                        if (node.startLine != 1) {
-                            Modifier.padding(top = 8.dp)
-                        } else {
-                            Modifier
-                        }
-                    )
-            )
+            CompositionLocalProvider(
+                LocalTextStyle provides LocalTextStyle.current.copy(
+                    fontSize = LocalTextStyle.current.fontSize * LocalMarkdownTreeConfig.current.fontSizeMultiplier
+                )
+            ) {
+                MarkdownText(
+                    node,
+                    modifier = Modifier
+                        .then(
+                            if (node.startLine != 1) {
+                                Modifier.padding(top = 8.dp)
+                            } else {
+                                Modifier
+                            }
+                        )
+                )
+            }
         }
 
         "document" -> {

app/src/main/java/chat/revolt/internals/EmojiImpl.kt

@@ -279,6 +279,16 @@ class EmojiImpl {
         }
     }
 
+    fun codepointIsEmoji(codepoint: Int): Boolean {
+        return metadata.any { group ->
+            group.emoji.any { emoji ->
+                emoji.base.contains(codepoint.toLong()) || emoji.alternates.any { alternate ->
+                    alternate.contains(codepoint.toLong())
+                }
+            }
+        }
+    }
+
     init {
         metadata = initMetadata(RevoltApplication.instance.applicationContext)
     }

app/src/main/java/chat/revolt/internals/text/Gigamoji.kt

@@ -0,0 +1,36 @@
+package chat.revolt.internals.text
+
+private val STRING_IS_CUSTOM_EMOTES_REGEX = Regex("(?::[0-9A-HJKMNP-TV-Z]{26}:|\\s)+")
+
+object Gigamoji {
+    private fun stringIsEntirelyCustomEmotes(content: String): Boolean {
+        return STRING_IS_CUSTOM_EMOTES_REGEX.matches(content)
+    }
+
+    private fun stringIsEntirelyUnicodeEmojis(unfilteredContent: String): Boolean {
+        // Remove all custom emotes
+        val content = unfilteredContent.replace(STRING_IS_CUSTOM_EMOTES_REGEX, "")
+
+        // the message is solely custom emotes
+        if (content.isBlank()) return true
+
+        if ("[0-9A-Za-z#*]".toRegex()
+                .containsMatchIn(content)
+        ) { // reject common non-emoji characters
+            return false
+        }
+
+        for (codepoint in content.codePoints()) {
+            if (MessageProcessor.emoji.codepointIsEmoji(codepoint)) {
+                return true
+            }
+        }
+
+        return false
+    }
+
+    fun useGigamojiForMessage(content: String): Boolean {
+        if (content.isBlank()) return false
+        return stringIsEntirelyCustomEmotes(content) || stringIsEntirelyUnicodeEmojis(content)
+    }
+}