mirror of
https://github.com/oxen-io/session-android.git
synced 2023-12-14 02:53:01 +01:00
56 lines
2.7 KiB
Kotlin
56 lines
2.7 KiB
Kotlin
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package org.thoughtcrime.securesms.loki
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import android.content.Context
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import android.text.Spannable
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import android.text.SpannableString
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import android.text.style.BackgroundColorSpan
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import android.util.Range
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import network.loki.messenger.R
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import org.thoughtcrime.securesms.database.DatabaseFactory
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import org.thoughtcrime.securesms.util.TextSecurePreferences
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import org.whispersystems.signalservice.loki.api.LokiGroupChatAPI
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import java.util.regex.Pattern
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object MentionUtilities {
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@JvmStatic
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fun highlightMentions(text: CharSequence, isGroupThread: Boolean, context: Context): String {
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return MentionUtilities.highlightMentions(text, false, isGroupThread, context).toString() // isOutgoingMessage is irrelevant
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}
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@JvmStatic
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fun highlightMentions(text: CharSequence, isOutgoingMessage: Boolean, isGroupThread: Boolean, context: Context): SpannableString {
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var text = text
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val pattern = Pattern.compile("@[0-9a-fA-F]*")
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var matcher = pattern.matcher(text)
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val mentions = mutableListOf<Range<Int>>()
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var startIndex = 0
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if (matcher.find(startIndex) && isGroupThread) {
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while (true) {
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val userID = text.subSequence(matcher.start() + 1, matcher.end()).toString() // +1 to get rid of the @
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val userDisplayName: String? = if (userID.toLowerCase() == TextSecurePreferences.getLocalNumber(context).toLowerCase()) {
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TextSecurePreferences.getProfileName(context)
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} else {
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val publicChatID = LokiGroupChatAPI.publicChatServer + "." + LokiGroupChatAPI.publicChatServerID
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DatabaseFactory.getLokiUserDatabase(context).getServerDisplayName(publicChatID, userID)
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}
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if (userDisplayName != null) {
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text = text.subSequence(0, matcher.start()).toString() + "@" + userDisplayName + text.subSequence(matcher.end(), text.length)
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val endIndex = matcher.start() + 1 + userDisplayName.length
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startIndex = endIndex
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mentions.add(Range.create(matcher.start(), endIndex))
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} else {
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startIndex = matcher.end()
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}
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matcher = pattern.matcher(text)
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if (!matcher.find(startIndex)) { break }
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}
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}
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val result = SpannableString(text)
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for (range in mentions) {
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val highlightColor = if (isOutgoingMessage) context.resources.getColor(R.color.loki_dark_green) else context.resources.getColor(R.color.loki_green)
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result.setSpan(BackgroundColorSpan(highlightColor), range.lower, range.upper, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
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}
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return result
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}
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}
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