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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
package org.mozilla.reference.browser.tabs
import android.app.Activity
import mozilla.components.browser.state.selector.findTabOrCustomTabOrSelectedTab
import mozilla.components.browser.state.state.SessionState
import mozilla.components.browser.state.state.TabSessionState
import mozilla.components.browser.state.store.BrowserStore
import mozilla.components.feature.tabs.TabsUseCases
import mozilla.components.support.base.feature.LifecycleAwareFeature
import mozilla.components.support.base.feature.UserInteractionHandler
/**
* A feature that removes the tab and selects the parent, if one exists.
*/
class LastTabFeature(
private val store: BrowserStore,
private val tabId: String? = null,
private val removeTabUseCase: TabsUseCases.RemoveTabUseCase,
private val activity: Activity,
) : LifecycleAwareFeature,
UserInteractionHandler {
override fun start() = Unit
override fun stop() = Unit
/**
* Removes the session if it was opened by an ACTION_VIEW intent
* or if it has a parent session and no more history.
*/
override fun onBackPressed(): Boolean {
val tab = store.state.findTabOrCustomTabOrSelectedTab(tabId) ?: return false
val isExternalOrCustomTab = tab.source is SessionState.Source.External ||
tab.source is SessionState.Source.Internal.CustomTab
return if (isExternalOrCustomTab && !tab.restored) {
activity.finish()
removeTabUseCase(tab.id)
true
} else {
val hasParent = tab is TabSessionState && tab.parentId != null
removeTabUseCase(tab.id, selectParentIfExists = hasParent) // Alternatively, set this to always true.
// We want to return to home if this session didn't have a parent session to select.
hasParent
}
}
}