forked from GitHub-Mirror/riotX-android
139 lines
6.5 KiB
Kotlin
139 lines
6.5 KiB
Kotlin
/*
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* Copyright 2019 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package im.vector.matrix.android.internal.session.room.membership
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import android.content.Context
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import com.zhuinden.monarchy.Monarchy
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import im.vector.matrix.android.R
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import im.vector.matrix.android.api.auth.data.Credentials
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import im.vector.matrix.android.api.session.events.model.EventType
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import im.vector.matrix.android.api.session.events.model.toModel
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import im.vector.matrix.android.api.session.room.model.*
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import im.vector.matrix.android.internal.database.mapper.asDomain
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import im.vector.matrix.android.internal.database.model.EventEntity
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import im.vector.matrix.android.internal.database.model.EventEntityFields
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import im.vector.matrix.android.internal.database.model.RoomEntity
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import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
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import im.vector.matrix.android.internal.database.query.prev
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import im.vector.matrix.android.internal.database.query.where
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import javax.inject.Inject
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/**
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* This class computes room display name
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*/
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internal class RoomDisplayNameResolver @Inject constructor(private val context: Context,
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private val monarchy: Monarchy,
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private val credentials: Credentials
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) {
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/**
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* Compute the room display name
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*
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* @param roomId: the roomId to resolve the name of.
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* @return the room display name
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*/
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fun resolve(roomId: String): CharSequence {
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// this algorithm is the one defined in
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// https://github.com/matrix-org/matrix-js-sdk/blob/develop/lib/models/room.js#L617
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// calculateRoomName(room, userId)
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// For Lazy Loaded room, see algorithm here:
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// https://docs.google.com/document/d/11i14UI1cUz-OJ0knD5BFu7fmT6Fo327zvMYqfSAR7xs/edit#heading=h.qif6pkqyjgzn
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var name: CharSequence? = null
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monarchy.doWithRealm { realm ->
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val roomEntity = RoomEntity.where(realm, roomId = roomId).findFirst()
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val roomName = EventEntity.where(realm, roomId, EventType.STATE_ROOM_NAME).prev()?.asDomain()
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name = roomName?.content.toModel<RoomNameContent>()?.name
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if (!name.isNullOrEmpty()) {
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return@doWithRealm
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}
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val canonicalAlias = EventEntity.where(realm, roomId, EventType.STATE_CANONICAL_ALIAS).prev()?.asDomain()
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name = canonicalAlias?.content.toModel<RoomCanonicalAliasContent>()?.canonicalAlias
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if (!name.isNullOrEmpty()) {
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return@doWithRealm
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}
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val aliases = EventEntity.where(realm, roomId, EventType.STATE_ROOM_ALIASES).prev()?.asDomain()
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name = aliases?.content.toModel<RoomAliasesContent>()?.aliases?.firstOrNull()
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if (!name.isNullOrEmpty()) {
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return@doWithRealm
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}
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val roomMembers = RoomMembers(realm, roomId)
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val loadedMembers = roomMembers.queryRoomMembersEvent().findAll()
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if (roomEntity?.membership == Membership.INVITE) {
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val inviteMeEvent = roomMembers.queryRoomMemberEvent(credentials.userId).findFirst()
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val inviterId = inviteMeEvent?.sender
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name = if (inviterId != null) {
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val inviterMemberEvent = loadedMembers.where()
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.equalTo(EventEntityFields.STATE_KEY, inviterId)
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.findFirst()
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inviterMemberEvent?.toRoomMember()?.displayName
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} else {
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context.getString(R.string.room_displayname_room_invite)
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}
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} else if (roomEntity?.membership == Membership.JOIN) {
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val roomSummary = RoomSummaryEntity.where(realm, roomId).findFirst()
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val otherMembersSubset: List<EventEntity> = if (roomSummary?.heroes?.isNotEmpty() == true) {
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roomSummary.heroes.mapNotNull {
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roomMembers.getStateEvent(it)
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}
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} else {
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loadedMembers.where()
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.notEqualTo(EventEntityFields.STATE_KEY, credentials.userId)
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.limit(3)
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.findAll()
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}
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val otherMembersCount = roomMembers.getNumberOfMembers() - 1
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name = when (otherMembersCount) {
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0 -> context.getString(R.string.room_displayname_empty_room)
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1 -> resolveRoomMemberName(otherMembersSubset[0], roomMembers)
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2 -> context.getString(R.string.room_displayname_two_members,
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resolveRoomMemberName(otherMembersSubset[0], roomMembers),
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resolveRoomMemberName(otherMembersSubset[1], roomMembers)
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)
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else -> context.resources.getQuantityString(R.plurals.room_displayname_three_and_more_members,
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roomMembers.getNumberOfJoinedMembers() - 1,
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resolveRoomMemberName(otherMembersSubset[0], roomMembers),
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roomMembers.getNumberOfJoinedMembers() - 1)
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}
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}
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return@doWithRealm
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}
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return name ?: roomId
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}
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private fun resolveRoomMemberName(eventEntity: EventEntity?,
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roomMembers: RoomMembers): String? {
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if (eventEntity == null) return null
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val roomMember = eventEntity.toRoomMember() ?: return null
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val isUnique = roomMembers.isUniqueDisplayName(roomMember.displayName)
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return if (isUnique) {
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roomMember.displayName
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} else {
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"${roomMember.displayName} (${eventEntity.stateKey})"
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}
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}
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private fun EventEntity?.toRoomMember(): RoomMember? {
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return this?.asDomain()?.content?.toModel<RoomMember>()
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}
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}
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