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79 lines
3.3 KiB
Kotlin
79 lines
3.3 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.shopping
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.FlowPreview
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import kotlinx.coroutines.cancel
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import kotlinx.coroutines.flow.debounce
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import kotlinx.coroutines.flow.distinctUntilChanged
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import kotlinx.coroutines.flow.map
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import kotlinx.coroutines.flow.mapNotNull
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import mozilla.components.browser.state.selector.selectedTab
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import mozilla.components.browser.state.state.ContentState
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import mozilla.components.browser.state.store.BrowserStore
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import mozilla.components.lib.state.ext.flowScoped
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import mozilla.components.support.base.feature.LifecycleAwareFeature
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import org.mozilla.fenix.components.AppStore
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private const val DEBOUNCE_TIMEOUT_MILLIS = 200L
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/**
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* Feature implementation that provides review quality check information for supported product
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* pages.
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*
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* @property appStore Reference to the application's [AppStore].
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* @property browserStore Reference to the application's [BrowserStore].
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* @property shoppingExperienceFeature Reference to the [ShoppingExperienceFeature].
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* @property onIconVisibilityChange Invoked when shopping icon visibility changes based on feature
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* flag and when the loaded page is a supported product page.
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* @property onBottomSheetStateChange Invoked when the bottom sheet is collapsed or expanded.
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* @property debounceTimeoutMillis Function that returns the debounce timeout in milliseconds. This
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* make it possible to wait till [ContentState.isProductUrl] is stable before invoking
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* [onIconVisibilityChange].
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* @property onProductPageDetected Invoked when a product page is detected and loaded. Used to
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* detect when to send telemetry for shopping.product_page_visits.
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*/
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@OptIn(FlowPreview::class)
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class ReviewQualityCheckFeature(
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private val appStore: AppStore,
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private val browserStore: BrowserStore,
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private val shoppingExperienceFeature: ShoppingExperienceFeature,
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private val onIconVisibilityChange: (isAvailable: Boolean) -> Unit,
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private val onBottomSheetStateChange: (isExpanded: Boolean) -> Unit,
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private val debounceTimeoutMillis: (Boolean) -> Long = { if (it) DEBOUNCE_TIMEOUT_MILLIS else 0 },
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private val onProductPageDetected: () -> Unit,
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) : LifecycleAwareFeature {
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private var scope: CoroutineScope? = null
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private var appStoreScope: CoroutineScope? = null
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override fun start() {
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scope = browserStore.flowScoped { flow ->
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flow.mapNotNull { it.selectedTab }
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.map { it.content.isProductUrl && !it.content.loading }
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.distinctUntilChanged()
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.debounce(debounceTimeoutMillis)
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.collect {
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if (it) {
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onProductPageDetected()
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}
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onIconVisibilityChange(shoppingExperienceFeature.isEnabled && it)
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}
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}
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appStoreScope = appStore.flowScoped { flow ->
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flow.mapNotNull { it.shoppingState.shoppingSheetExpanded }
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.distinctUntilChanged()
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.collect(onBottomSheetStateChange)
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}
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}
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override fun stop() {
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scope?.cancel()
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appStoreScope?.cancel()
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}
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}
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