48 lines
1.9 KiB
Kotlin
48 lines
1.9 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.perf
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import androidx.annotation.UiThread
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import org.mozilla.fenix.HomeActivity
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import org.mozilla.fenix.home.sessioncontrol.viewholders.topsites.TopSiteItemViewHolder
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import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupActivity
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import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination
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import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupState
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/**
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* A collection of functionality to instrument, measure, and understand startup performance. The
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* responsibilities of this class are to update the internal [StartupState] based on the methods
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* called and to delegate calls to its dependencies, which handle other functionality related to
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* understanding startup.
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*
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* This class, and its dependencies, may need to be modified for any changes in startup.
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*
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* This class is not thread safe and should only be called from the main thread.
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*/
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@UiThread
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object StartupTimeline {
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private var state: StartupState = StartupState.Cold(StartupDestination.UNKNOWN)
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private val reportFullyDrawn = StartupReportFullyDrawn()
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fun onActivityCreateEndIntentReceiver() {
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advanceState(StartupActivity.INTENT_RECEIVER)
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}
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fun onActivityCreateEndHome(activity: HomeActivity) {
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advanceState(StartupActivity.HOME)
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reportFullyDrawn.onActivityCreateEndHome(state, activity)
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}
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fun onTopSitesItemBound(holder: TopSiteItemViewHolder) {
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// no advanceState associated with this method.
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reportFullyDrawn.onTopSitesItemBound(state, holder)
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}
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private fun advanceState(startingActivity: StartupActivity) {
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state = StartupTimelineStateMachine.getNextState(state, startingActivity)
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}
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}
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