feat: styling for timestamps

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

app/src/main/java/chat/revolt/components/generic/Markdown.kt

@@ -58,7 +58,7 @@ fun UIMarkdown(
             .addRules(
                 SimpleMarkdownRules.createEscapeRule()
             )
-            .addRevoltRules()
+            .addRevoltRules(context)
             .addRules(
                 createCodeRule(context, codeBlockColor.toArgb()),
                 createInlineCodeRule(context, codeBlockColor.toArgb()),

app/src/main/java/chat/revolt/internals/markdown/MarkdownNodes.kt

@@ -2,15 +2,7 @@ package chat.revolt.internals.markdown
 
 import android.text.SpannableStringBuilder
 import android.text.Spanned
-import android.text.format.DateUtils
-import android.util.Log
 import com.discord.simpleast.core.node.Node
-import kotlinx.datetime.Clock
-import kotlinx.datetime.Instant
-import kotlinx.datetime.toJavaInstant
-import java.time.ZoneId
-import java.time.format.DateTimeFormatter
-import java.util.Locale
 
 class UserMentionNode(private val userId: String) : Node<MarkdownContext>() {
     override fun render(builder: SpannableStringBuilder, renderContext: MarkdownContext) {
@@ -62,70 +54,6 @@ class CustomEmoteNode(private val emoteId: String) : Node<MarkdownContext>() {
     }
 }
 
-class TimestampNode(private val timestamp: Long, private val modifier: String? = null) :
-    Node<MarkdownContext>() {
-    override fun render(builder: SpannableStringBuilder, renderContext: MarkdownContext) {
-        val normalisedModifier = modifier.orEmpty().removePrefix(":")
-
-        val instant = Instant.fromEpochSeconds(timestamp)
-        val javaInstant = instant.toJavaInstant()
-
-        try {
-            if (timestamp < 0) {
-                builder.append("<invalid timestamp>")
-                return
-            }
-
-            val outString = when (normalisedModifier) {
-                // 22:22
-                "t" -> DateTimeFormatter.ofPattern("HH:mm")
-                    .withLocale(Locale.getDefault())
-                    .withZone(ZoneId.systemDefault())
-                    .format(javaInstant)
-
-                // 22:22:22
-                "T" -> DateTimeFormatter.ofPattern("HH:mm:ss")
-                    .withLocale(Locale.getDefault())
-                    .withZone(ZoneId.systemDefault())
-                    .format(javaInstant)
-
-                // 22 September 2022
-                "D" -> DateTimeFormatter.ofPattern("dd MMMM yyyy")
-                    .withLocale(Locale.getDefault())
-                    .withZone(ZoneId.systemDefault())
-                    .format(javaInstant)
-
-                // 22 September 2022 22:22
-                "f" -> DateTimeFormatter.ofPattern("dd MMMM yyyy HH:mm")
-                    .withLocale(Locale.getDefault())
-                    .withZone(ZoneId.systemDefault())
-                    .format(javaInstant)
-
-                // Thursday, 22 September 2022 22:22
-                "F" -> DateTimeFormatter.ofPattern("EEEE, dd MMMM yyyy HH:mm")
-                    .withLocale(Locale.getDefault())
-                    .withZone(ZoneId.systemDefault())
-                    .format(javaInstant)
-
-                // 9 months ago
-                "R" -> DateUtils.getRelativeTimeSpanString(
-                    timestamp * 1000,
-                    Clock.System.now().toEpochMilliseconds(),
-                    DateUtils.MINUTE_IN_MILLIS
-                )
-
-                // Fallback. Shouldn't happen
-                else -> timestamp.toString()
-            }
-
-            builder.append(outString)
-        } catch (e: Exception) {
-            Log.e("TimestampNode", "Failed to parse timestamp", e)
-            builder.append("<invalid timestamp>")
-        }
-    }
-}
-
 class LinkNode(val content: String, val url: String = content) : Node<MarkdownContext>() {
     override fun render(builder: SpannableStringBuilder, renderContext: MarkdownContext) {
         builder.append(content)

app/src/main/java/chat/revolt/internals/markdown/MarkdownRules.kt

@@ -47,21 +47,24 @@ class CustomEmoteRule<S> :
     }
 }
 
-class TimestampRule<S> :
+class TimestampRule<S>(private val context: Context) :
-    Rule<MarkdownContext, TimestampNode, S>(Pattern.compile("^<t:([0-9]+?)(:[tTDfFR])?>")) {
+    Rule<MarkdownContext, Node<MarkdownContext>, S>(Pattern.compile("^<t:([0-9]+?)(:[tTDfFR])?>")) {
     override fun parse(
         matcher: Matcher,
-        parser: Parser<MarkdownContext, in TimestampNode, S>,
+        parser: Parser<MarkdownContext, in Node<MarkdownContext>, S>,
         state: S
     ): ParseSpec<MarkdownContext, S> {
         return ParseSpec.createTerminal(
-            TimestampNode(
+            StyleNode.wrapText(
-                try {
+                resolveTimestamp(
-                    matcher.group(1)!!.toLong()
+                    try {
-                } catch (e: NumberFormatException) {
+                        matcher.group(1)!!.toLong()
-                    -1
+                    } catch (e: NumberFormatException) {
-                },
+                        -1
-                matcher.group(2)
+                    },
+                    matcher.group(2)
+                ),
+                listOf(TextAppearanceSpan(context, R.style.Code_TextAppearance))
             ), state
         )
     }
@@ -193,12 +196,12 @@ fun <RC> createCodeRule(
     }
 }
 
-fun MarkdownParser.addRevoltRules(): MarkdownParser {
+fun MarkdownParser.addRevoltRules(context: Context): MarkdownParser {
     return addRules(
         UserMentionRule(),
         ChannelMentionRule(),
         CustomEmoteRule(),
-        TimestampRule(),
+        TimestampRule(context),
         NamedLinkRule(),
         LinkRule(),
     )

app/src/main/java/chat/revolt/internals/markdown/Timestamp.kt

@@ -0,0 +1,70 @@
+package chat.revolt.internals.markdown
+
+import android.text.format.DateUtils
+import android.util.Log
+import kotlinx.datetime.Clock
+import kotlinx.datetime.Instant
+import kotlinx.datetime.toJavaInstant
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+import java.util.Locale
+
+fun resolveTimestamp(timestamp: Long, modifier: String? = null): String {
+    val normalisedModifier = modifier.orEmpty().removePrefix(":")
+
+    val instant = Instant.fromEpochSeconds(timestamp)
+    val javaInstant = instant.toJavaInstant()
+
+    try {
+        if (timestamp < 0) {
+            return "<invalid timestamp>"
+        }
+
+        val outString = when (normalisedModifier) {
+            // 22:22
+            "t" -> DateTimeFormatter.ofPattern("HH:mm")
+                .withLocale(Locale.getDefault())
+                .withZone(ZoneId.systemDefault())
+                .format(javaInstant)
+
+            // 22:22:22
+            "T" -> DateTimeFormatter.ofPattern("HH:mm:ss")
+                .withLocale(Locale.getDefault())
+                .withZone(ZoneId.systemDefault())
+                .format(javaInstant)
+
+            // 22 September 2022
+            "D" -> DateTimeFormatter.ofPattern("dd MMMM yyyy")
+                .withLocale(Locale.getDefault())
+                .withZone(ZoneId.systemDefault())
+                .format(javaInstant)
+
+            // 22 September 2022 22:22
+            "f" -> DateTimeFormatter.ofPattern("dd MMMM yyyy HH:mm")
+                .withLocale(Locale.getDefault())
+                .withZone(ZoneId.systemDefault())
+                .format(javaInstant)
+
+            // Thursday, 22 September 2022 22:22
+            "F" -> DateTimeFormatter.ofPattern("EEEE, dd MMMM yyyy HH:mm")
+                .withLocale(Locale.getDefault())
+                .withZone(ZoneId.systemDefault())
+                .format(javaInstant)
+
+            // 9 months ago
+            "R" -> DateUtils.getRelativeTimeSpanString(
+                timestamp * 1000,
+                Clock.System.now().toEpochMilliseconds(),
+                DateUtils.MINUTE_IN_MILLIS
+            )
+
+            // Fallback. Shouldn't happen, regex already checks for this
+            else -> timestamp.toString()
+        }
+
+        return outString.toString()
+    } catch (e: Exception) {
+        Log.e("Timestamp", "Failed to parse timestamp", e)
+        return "<invalid timestamp>"
+    }
+}

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

@@ -298,7 +298,7 @@ fun ChannelScreen(
                                     .addRules(
                                         SimpleMarkdownRules.createEscapeRule(),
                                     )
-                                    .addRevoltRules()
+                                    .addRevoltRules(context)
                                     .addRules(
                                         createCodeRule(context, codeBlockColor.toArgb()),
                                         createInlineCodeRule(context, codeBlockColor.toArgb()),