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36 lines
1.3 KiB
Kotlin
36 lines
1.3 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.tabstray.browser
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.collect
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import mozilla.components.browser.state.state.isNotEmpty
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import mozilla.components.lib.state.helpers.AbstractBinding
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import mozilla.components.support.ktx.kotlinx.coroutines.flow.ifChanged
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import org.mozilla.fenix.tabstray.TabsTrayState
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import org.mozilla.fenix.tabstray.TabsTrayStore
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/**
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* A tabs observer that informs [showHeader] if an "Other tabs" title should be displayed in the tray.
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*/
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class OtherHeaderBinding(
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store: TabsTrayStore,
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private val showHeader: (Boolean) -> Unit
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) : AbstractBinding<TabsTrayState>(store) {
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override suspend fun onState(flow: Flow<TabsTrayState>) {
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flow.ifChanged { Pair(it.normalTabs, it.searchTermPartition) }
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.collect {
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if (
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it.normalTabs.isNotEmpty() &&
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it.searchTermPartition.isNotEmpty()
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) {
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showHeader(true)
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} else {
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showHeader(false)
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}
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}
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}
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}
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