ganfra
1 year ago
committed by
GitHub
5 changed files with 78 additions and 5 deletions
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/* |
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* Copyright (c) 2023 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 io.element.android.libraries.matrix.impl.timeline |
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import org.matrix.rustcomponents.sdk.EventItemOrigin |
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import org.matrix.rustcomponents.sdk.TimelineChange |
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import org.matrix.rustcomponents.sdk.TimelineDiff |
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import org.matrix.rustcomponents.sdk.TimelineItem |
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/** |
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* Tries to get an event origin from the TimelineDiff. |
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* If there is multiple events in the diff, uses the first one as it should be a good indicator. |
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*/ |
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internal fun TimelineDiff.eventOrigin(): EventItemOrigin? { |
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return when (change()) { |
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TimelineChange.APPEND -> { |
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append()?.firstOrNull()?.eventOrigin() |
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} |
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TimelineChange.PUSH_BACK -> { |
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pushBack()?.eventOrigin() |
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} |
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TimelineChange.PUSH_FRONT -> { |
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pushFront()?.eventOrigin() |
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} |
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TimelineChange.SET -> { |
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set()?.item?.eventOrigin() |
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} |
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TimelineChange.INSERT -> { |
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insert()?.item?.eventOrigin() |
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} |
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TimelineChange.RESET -> { |
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reset()?.firstOrNull()?.eventOrigin() |
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} |
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else -> null |
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} |
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} |
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private fun TimelineItem.eventOrigin(): EventItemOrigin? { |
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return asEvent()?.origin() |
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} |
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