72 lines
3.6 KiB
Kotlin
72 lines
3.6 KiB
Kotlin
package org.thoughtcrime.securesms.conversation.v2.utilities
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import android.content.Context
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import android.graphics.Typeface
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import android.text.Spannable
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import android.text.SpannableString
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import android.text.style.ForegroundColorSpan
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import android.text.style.StyleSpan
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import android.util.Range
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import androidx.core.content.res.ResourcesCompat
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import network.loki.messenger.R
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import nl.komponents.kovenant.combine.Tuple2
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import org.session.libsession.messaging.contacts.Contact
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import org.session.libsession.utilities.TextSecurePreferences
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import org.thoughtcrime.securesms.dependencies.DatabaseComponent
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import org.thoughtcrime.securesms.util.UiModeUtilities
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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, threadID: Long, context: Context): String {
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return highlightMentions(text, false, threadID, context).toString() // isOutgoingMessage is irrelevant
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}
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@JvmStatic
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fun highlightMentions(text: CharSequence, isOutgoingMessage: Boolean, threadID: Long, context: Context): SpannableString {
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@Suppress("NAME_SHADOWING") var text = text
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val threadDB = DatabaseComponent.get(context).threadDatabase()
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val isOpenGroup = threadDB.getRecipientForThreadId(threadID)?.isOpenGroupRecipient ?: false
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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<Tuple2<Range<Int>, String>>()
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var startIndex = 0
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val userPublicKey = TextSecurePreferences.getLocalNumber(context)!!
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if (matcher.find(startIndex)) {
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while (true) {
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val publicKey = text.subSequence(matcher.start() + 1, matcher.end()).toString() // +1 to get rid of the @
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val userDisplayName: String? = if (publicKey.equals(userPublicKey, ignoreCase = true)) {
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TextSecurePreferences.getProfileName(context)
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} else {
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val contact = DatabaseComponent.get(context).sessionContactDatabase().getContactWithSessionID(publicKey)
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@Suppress("NAME_SHADOWING") val context = if (isOpenGroup) Contact.ContactContext.OPEN_GROUP else Contact.ContactContext.REGULAR
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contact?.displayName(context)
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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(Tuple2(Range.create(matcher.start(), endIndex), publicKey))
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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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val isLightMode = UiModeUtilities.isDayUiMode(context)
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for (mention in mentions) {
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val colorID = if (isOutgoingMessage) {
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if (isLightMode) R.color.white else R.color.black
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} else {
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R.color.accent
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}
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val color = ResourcesCompat.getColor(context.resources, colorID, context.theme)
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result.setSpan(ForegroundColorSpan(color), mention.first.lower, mention.first.upper, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
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result.setSpan(StyleSpan(Typeface.BOLD), mention.first.lower, mention.first.upper, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
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}
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return result
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}
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} |