60 lines
1.8 KiB
Kotlin
60 lines
1.8 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.components.toolbar
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import android.view.View
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.cancel
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import kotlinx.coroutines.flow.collect
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import kotlinx.coroutines.flow.mapNotNull
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import mozilla.components.browser.state.selector.findCustomTabOrSelectedTab
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import mozilla.components.browser.state.store.BrowserStore
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import mozilla.components.browser.toolbar.BrowserToolbar
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import mozilla.components.lib.state.ext.flowScoped
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import mozilla.components.support.ktx.kotlinx.coroutines.flow.ifAnyChanged
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class MenuPresenter(
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private val menuToolbar: BrowserToolbar,
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private val store: BrowserStore,
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private val sessionId: String? = null
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) : View.OnAttachStateChangeListener {
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private var scope: CoroutineScope? = null
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fun start() {
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menuToolbar.addOnAttachStateChangeListener(this)
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scope = store.flowScoped { flow ->
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flow.mapNotNull { state -> state.findCustomTabOrSelectedTab(sessionId) }
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.ifAnyChanged { tab ->
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arrayOf(
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tab.content.loading,
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tab.content.canGoBack,
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tab.content.canGoForward,
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tab.content.webAppManifest
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)
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}
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.collect {
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invalidateActions()
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}
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}
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}
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fun stop() {
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scope?.cancel()
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}
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fun invalidateActions() {
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menuToolbar.invalidateActions()
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}
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override fun onViewDetachedFromWindow(v: View?) {
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menuToolbar.onStop()
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}
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override fun onViewAttachedToWindow(v: View?) {
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// no-op
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}
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}
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