You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.6 KiB
Kotlin
88 lines
2.6 KiB
Kotlin
/* 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
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
package org.mozilla.fenix.tabstray
|
|
|
|
import androidx.annotation.VisibleForTesting
|
|
import com.google.android.material.tabs.TabLayout
|
|
import mozilla.components.browser.state.selector.selectedTab
|
|
import mozilla.components.browser.state.store.BrowserStore
|
|
import mozilla.components.support.base.feature.LifecycleAwareFeature
|
|
import org.mozilla.fenix.tabstray.TrayPagerAdapter.Companion.POSITION_NORMAL_TABS
|
|
import org.mozilla.fenix.tabstray.TrayPagerAdapter.Companion.POSITION_PRIVATE_TABS
|
|
|
|
/**
|
|
* Selected the selected pager depending on the [BrowserStore] state and synchronizes user actions
|
|
* with the pager position.
|
|
*/
|
|
class TabLayoutMediator(
|
|
private val tabLayout: TabLayout,
|
|
interactor: TabsTrayInteractor,
|
|
private val browserStore: BrowserStore,
|
|
trayStore: TabsTrayStore
|
|
) : LifecycleAwareFeature {
|
|
|
|
private val observer = TabLayoutObserver(interactor, trayStore)
|
|
|
|
/**
|
|
* Start observing the [TabLayout] and select the current tab for initial state.
|
|
*/
|
|
override fun start() {
|
|
tabLayout.addOnTabSelectedListener(observer)
|
|
|
|
selectActivePage()
|
|
}
|
|
|
|
override fun stop() {
|
|
tabLayout.removeOnTabSelectedListener(observer)
|
|
}
|
|
|
|
@VisibleForTesting
|
|
internal fun selectActivePage() {
|
|
val selectedTab = browserStore.state.selectedTab ?: return
|
|
|
|
val selectedPagerPosition = if (selectedTab.content.private) {
|
|
POSITION_PRIVATE_TABS
|
|
} else {
|
|
POSITION_NORMAL_TABS
|
|
}
|
|
|
|
tabLayout.getTabAt(selectedPagerPosition)?.select()
|
|
}
|
|
}
|
|
|
|
/**
|
|
* An observer for the [TabLayout] used for the Tabs Tray.
|
|
*/
|
|
internal class TabLayoutObserver(
|
|
private val interactor: TabsTrayInteractor,
|
|
private val trayStore: TabsTrayStore
|
|
) : TabLayout.OnTabSelectedListener {
|
|
|
|
private var initialScroll = true
|
|
|
|
override fun onTabSelected(tab: TabLayout.Tab) {
|
|
// Do not animate the initial scroll when opening the tabs tray.
|
|
val animate = if (initialScroll) {
|
|
initialScroll = false
|
|
false
|
|
} else {
|
|
true
|
|
}
|
|
|
|
interactor.setCurrentTrayPosition(tab.position, animate)
|
|
|
|
trayStore.dispatch(TabsTrayAction.PageSelected(tab.toPage()))
|
|
}
|
|
|
|
override fun onTabUnselected(tab: TabLayout.Tab) = Unit
|
|
override fun onTabReselected(tab: TabLayout.Tab) = Unit
|
|
}
|
|
|
|
fun TabLayout.Tab.toPage() = when (this.position) {
|
|
0 -> Page.NormalTabs
|
|
1 -> Page.PrivateTabs
|
|
else -> Page.SyncedTabs
|
|
}
|