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85 lines
3.2 KiB
Kotlin
85 lines
3.2 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
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import androidx.annotation.VisibleForTesting
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import mozilla.components.lib.state.Middleware
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import mozilla.components.lib.state.MiddlewareContext
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import org.mozilla.fenix.GleanMetrics.Metrics
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import org.mozilla.fenix.GleanMetrics.TabsTray
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import org.mozilla.fenix.components.metrics.Event
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import org.mozilla.fenix.components.metrics.MetricController
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/**
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* [Middleware] that reacts to various [TabsTrayAction]s.
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*
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* @property metrics reference to the configured [MetricController] to record general page load events.
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*/
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class TabsTrayMiddleware(
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private val metrics: MetricController
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) : Middleware<TabsTrayState, TabsTrayAction> {
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private var shouldReportInactiveTabMetrics: Boolean = true
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private var shouldReportSearchGroupMetrics: Boolean = true
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override fun invoke(
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context: MiddlewareContext<TabsTrayState, TabsTrayAction>,
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next: (TabsTrayAction) -> Unit,
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action: TabsTrayAction
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) {
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next(action)
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when (action) {
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is TabsTrayAction.UpdateInactiveTabs -> {
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if (shouldReportInactiveTabMetrics) {
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shouldReportInactiveTabMetrics = false
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TabsTray.hasInactiveTabs.record(TabsTray.HasInactiveTabsExtra(action.tabs.size))
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Metrics.inactiveTabsCount.set(action.tabs.size.toLong())
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}
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}
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is TabsTrayAction.UpdateTabPartitions -> {
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if (shouldReportSearchGroupMetrics) {
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shouldReportSearchGroupMetrics = false
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val tabGroups = action.tabPartition?.tabGroups ?: emptyList()
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metrics.track(Event.SearchTermGroupCount(tabGroups.size))
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if (tabGroups.isNotEmpty()) {
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val tabsPerGroup = tabGroups.map { it.tabIds.size }
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val averageTabsPerGroup = tabsPerGroup.average()
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metrics.track(Event.AverageTabsPerSearchTermGroup(averageTabsPerGroup))
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val tabGroupSizeMapping = tabsPerGroup.map { generateTabGroupSizeMappedValue(it) }
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metrics.track(Event.SearchTermGroupSizeDistribution(tabGroupSizeMapping))
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}
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}
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}
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is TabsTrayAction.EnterSelectMode -> {
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TabsTray.enterMultiselectMode.record(TabsTray.EnterMultiselectModeExtra(false))
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}
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is TabsTrayAction.AddSelectTab -> {
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TabsTray.enterMultiselectMode.record(TabsTray.EnterMultiselectModeExtra(true))
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}
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else -> {
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// no-op
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}
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}
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}
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@Suppress("MagicNumber")
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@VisibleForTesting
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/**
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* This follows the logic outlined in metrics.yaml for "search_terms.group_size_distribution"
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*/
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internal fun generateTabGroupSizeMappedValue(size: Int): Long =
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when (size) {
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2 -> 1L
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in 3..5 -> 2L
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in 6..10 -> 3L
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else -> 4L
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}
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}
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