forked from GitHub-Mirror/riotX-android
157 lines
6.7 KiB
Kotlin
157 lines
6.7 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.riotx.features.home.room.detail.timeline.action
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import android.content.Context
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import android.text.Spannable
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import android.text.format.DateUtils
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import androidx.core.content.ContextCompat
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import com.airbnb.epoxy.TypedEpoxyController
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import com.airbnb.mvrx.Fail
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import com.airbnb.mvrx.Incomplete
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import com.airbnb.mvrx.Success
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import im.vector.matrix.android.api.session.events.model.Event
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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.message.MessageTextContent
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import im.vector.matrix.android.api.util.ContentUtils.extractUsefulTextFromReply
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import im.vector.riotx.R
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import im.vector.riotx.core.extensions.localDateTime
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import im.vector.riotx.core.ui.list.genericFooterItem
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import im.vector.riotx.core.ui.list.genericItem
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import im.vector.riotx.core.ui.list.genericItemHeader
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import im.vector.riotx.core.ui.list.genericLoaderItem
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import im.vector.riotx.core.date.VectorDateFormatter
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import im.vector.riotx.features.html.EventHtmlRenderer
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import me.gujun.android.span.span
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import name.fraser.neil.plaintext.diff_match_patch
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import timber.log.Timber
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import java.util.*
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/**
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* Epoxy controller for reaction event list
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*/
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class ViewEditHistoryEpoxyController(private val context: Context,
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val dateFormatter: VectorDateFormatter,
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val eventHtmlRenderer: EventHtmlRenderer) : TypedEpoxyController<ViewEditHistoryViewState>() {
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override fun buildModels(state: ViewEditHistoryViewState) {
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when (state.editList) {
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is Incomplete -> {
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genericLoaderItem {
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id("Spinner")
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}
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}
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is Fail -> {
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genericFooterItem {
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id("failure")
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text(context.getString(R.string.unknown_error))
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}
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}
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is Success -> {
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state.editList()?.let { renderEvents(it, state.isOriginalAReply) }
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}
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}
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}
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private fun renderEvents(sourceEvents: List<Event>, isOriginalReply: Boolean) {
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if (sourceEvents.isEmpty()) {
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genericItem {
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id("footer")
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title(context.getString(R.string.no_message_edits_found))
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}
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} else {
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var lastDate: Calendar? = null
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sourceEvents.forEachIndexed { index, timelineEvent ->
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val evDate = Calendar.getInstance().apply {
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timeInMillis = timelineEvent.originServerTs
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?: System.currentTimeMillis()
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}
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if (lastDate?.get(Calendar.DAY_OF_YEAR) != evDate.get(Calendar.DAY_OF_YEAR)) {
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//need to display header with day
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val dateString = if (DateUtils.isToday(evDate.timeInMillis)) context.getString(R.string.today)
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else dateFormatter.formatMessageDay(timelineEvent.localDateTime())
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genericItemHeader {
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id(evDate.hashCode())
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text(dateString)
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}
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}
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lastDate = evDate
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val cContent = getCorrectContent(timelineEvent, isOriginalReply)
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val body = cContent.second?.let { eventHtmlRenderer.render(it) }
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?: cContent.first
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val nextEvent = if (index + 1 <= sourceEvents.lastIndex) sourceEvents[index + 1] else null
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var spannedDiff: Spannable? = null
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if (nextEvent != null && cContent.second == null /*No diff for html*/) {
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//compares the body
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val nContent = getCorrectContent(nextEvent, isOriginalReply)
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val nextBody = nContent.second?.let { eventHtmlRenderer.render(it) }
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?: nContent.first
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val dmp = diff_match_patch()
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val diff = dmp.diff_main(nextBody.toString(), body.toString())
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Timber.e("#### Diff: $diff")
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dmp.diff_cleanupSemantic(diff)
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Timber.e("#### Diff: $diff")
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spannedDiff = span {
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diff.map {
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when (it.operation) {
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diff_match_patch.Operation.DELETE -> {
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span {
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text = it.text
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textColor = ContextCompat.getColor(context, R.color.vector_error_color)
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textDecorationLine = "line-through"
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}
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}
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diff_match_patch.Operation.INSERT -> {
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span {
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text = it.text
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textColor = ContextCompat.getColor(context, R.color.vector_success_color)
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}
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}
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else -> {
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span {
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text = it.text
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}
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}
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}
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}
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}
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}
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genericItem {
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id(timelineEvent.eventId)
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title(dateFormatter.formatMessageHour(timelineEvent.localDateTime()))
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description(spannedDiff ?: body)
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}
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}
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}
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}
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private fun getCorrectContent(event: Event, isOriginalReply: Boolean): Pair<String, String?> {
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val clearContent = event.getClearContent().toModel<MessageTextContent>()
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val newContent = clearContent
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?.newContent
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?.toModel<MessageTextContent>()
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if (isOriginalReply) {
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return extractUsefulTextFromReply(newContent?.body ?: clearContent?.body ?: "") to null
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}
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return (newContent?.body ?: clearContent?.body ?: "") to (newContent?.formattedBody
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?: clearContent?.formattedBody)
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}
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} |