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Code Issues Releases Wiki Activity

Fix some network timeline bugs (#2373) 

* Fix network timeline gap loading

* Fix fullReload keeps nextKey

* Fix reload after clearing timeline

* Improve logic to handle overlapped statuses
This commit is contained in:
kyori19 2022-03-12 17:38:48 +09:00 committed by GitHub
parent 55513e8e2b
commit 72bb34bf27
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 71 additions and 16 deletions
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59
app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelineViewModel.kt
View File

@ -35,8 +35,11 @@ import com.keylesspalace.tusky.entity.Status
import com.keylesspalace.tusky.network.FilterModel
import com.keylesspalace.tusky.network.MastodonApi
import com.keylesspalace.tusky.network.TimelineCases
import com.keylesspalace.tusky.util.dec
import com.keylesspalace.tusky.util.getDomain
import com.keylesspalace.tusky.util.inc
import com.keylesspalace.tusky.util.isLessThan
import com.keylesspalace.tusky.util.isLessThanOrEqual
import com.keylesspalace.tusky.util.toViewData
import com.keylesspalace.tusky.viewdata.StatusViewData
import kotlinx.coroutines.flow.map
@ -135,6 +138,10 @@ class NetworkTimelineViewModel @Inject constructor(
override fun loadMore(placeholderId: String) {
viewModelScope.launch {
try {
val placeholderIndex =
statusData.indexOfFirst { it is StatusViewData.Placeholder && it.id == placeholderId }
statusData[placeholderIndex] = StatusViewData.Placeholder(placeholderId, isLoading = true)
val statusResponse = fetchStatusesForKind(
fromId = placeholderId.inc(),
uptoId = null,
@ -147,28 +154,47 @@ class NetworkTimelineViewModel @Inject constructor(
return@launch
}
statusData.removeAt(placeholderIndex)
val activeAccount = accountManager.activeAccount!!
val data = statuses.map { status ->
val oldStatus = statusData.find { s ->
s.asStatusOrNull()?.id == status.id
}?.asStatusOrNull()
val contentShowing = oldStatus?.isShowingContent ?: activeAccount.alwaysShowSensitiveMedia || !status.actionableStatus.sensitive
val expanded = oldStatus?.isExpanded ?: activeAccount.alwaysOpenSpoiler
val contentCollapsed = oldStatus?.isCollapsed ?: true
status.toViewData(
isShowingContent = contentShowing,
isExpanded = expanded,
isCollapsed = contentCollapsed
isShowingContent = activeAccount.alwaysShowSensitiveMedia || !status.actionableStatus.sensitive,
isExpanded = activeAccount.alwaysOpenSpoiler,
isCollapsed = true
)
}.toMutableList()
if (statuses.isNotEmpty()) {
val firstId = statuses.first().id
val lastId = statuses.last().id
val overlappedFrom = statusData.indexOfFirst { it.asStatusOrNull()?.id?.isLessThanOrEqual(firstId) ?: false }
val overlappedTo = statusData.indexOfFirst { it.asStatusOrNull()?.id?.isLessThan(lastId) ?: false }
if (overlappedFrom < overlappedTo) {
data.mapIndexed { i, status -> i to statusData.firstOrNull { it.asStatusOrNull()?.id == status.id }?.asStatusOrNull() }
.filter { (_, oldStatus) -> oldStatus != null }
.forEach { (i, oldStatus) ->
data[i] = data[i]
.copy(
isShowingContent = oldStatus!!.isShowingContent,
isExpanded = oldStatus.isExpanded,
isCollapsed = oldStatus.isCollapsed,
)
}
statusData.removeAll { status ->
when (status) {
is StatusViewData.Placeholder -> lastId.isLessThan(status.id) && status.id.isLessThanOrEqual(firstId)
is StatusViewData.Concrete -> lastId.isLessThan(status.id) && status.id.isLessThanOrEqual(firstId)
}
}
} else {
statusData.add(overlappedFrom, StatusViewData.Placeholder(statuses.last().id.dec(), isLoading = false))
}
}
val index =
statusData.indexOfFirst { it is StatusViewData.Placeholder && it.id == placeholderId }
statusData.removeAt(index)
statusData.addAll(index, data)
statusData.addAll(placeholderIndex, data)
currentSource?.invalidate()
} catch (e: Exception) {
@ -214,6 +240,7 @@ class NetworkTimelineViewModel @Inject constructor(
}
override fun fullReload() {
nextKey = statusData.firstOrNull { it is StatusViewData.Concrete }?.asStatusOrNull()?.id?.inc()
statusData.clear()
currentSource?.invalidate()
}

13
app/src/main/java/com/keylesspalace/tusky/util/StringUtils.kt
View File

@ -78,6 +78,19 @@ fun String.isLessThan(other: String): Boolean {
}
}
/**
* A <= B (strictly) by length and then by content.
* Examples:
* "abc" <= "bcd"
* "ab" <= "abc"
* "cb" <= "abc"
* "ab" <= "ab"
* not: "abc" > "cb"
*/
fun String.isLessThanOrEqual(other: String): Boolean {
return this == other || isLessThan(other)
}
fun Spanned.trimTrailingWhitespace(): Spanned {
var i = length
do {

15
app/src/test/java/com/keylesspalace/tusky/StringUtilsTest.kt
View File

@ -3,6 +3,7 @@ package com.keylesspalace.tusky
import com.keylesspalace.tusky.util.dec
import com.keylesspalace.tusky.util.inc
import com.keylesspalace.tusky.util.isLessThan
import com.keylesspalace.tusky.util.isLessThanOrEqual
import org.junit.Assert.assertEquals
import org.junit.Assert.assertFalse
import org.junit.Assert.assertTrue
@ -24,6 +25,20 @@ class StringUtilsTest {
notLessList.forEach { (l, r) -> assertFalse("not $l < $r", l.isLessThan(r)) }
}
@Test
fun isLessThanOrEqual() {
val lessList = listOf(
"abc" to "bcd",
"ab" to "abc",
"cb" to "abc",
"1" to "2",
"abc" to "abc",
)
lessList.forEach { (l, r) -> assertTrue("$l < $r", l.isLessThanOrEqual(r)) }
val notLessList = lessList.filterNot { (l, r) -> l == r }.map { (l, r) -> r to l }
notLessList.forEach { (l, r) -> assertFalse("not $l < $r", l.isLessThanOrEqual(r)) }
}
@Test
fun inc() {
listOf(