2aa540c29a
Make the setting dialogs navigation destinations. This reduces the boilerplate required for dialogs.
365 lines
14 KiB
Kotlin
365 lines
14 KiB
Kotlin
/*
|
|
* Copyright (c) 2021 Auxio Project
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package org.oxycblt.auxio
|
|
|
|
import android.os.Bundle
|
|
import android.view.LayoutInflater
|
|
import android.view.ViewTreeObserver
|
|
import android.view.WindowInsets
|
|
import androidx.activity.OnBackPressedCallback
|
|
import androidx.core.view.ViewCompat
|
|
import androidx.core.view.isInvisible
|
|
import androidx.core.view.updatePadding
|
|
import androidx.fragment.app.activityViewModels
|
|
import androidx.navigation.findNavController
|
|
import androidx.navigation.fragment.findNavController
|
|
import com.google.android.material.bottomsheet.NeoBottomSheetBehavior
|
|
import com.google.android.material.shape.MaterialShapeDrawable
|
|
import com.google.android.material.transition.MaterialFadeThrough
|
|
import org.oxycblt.auxio.databinding.FragmentMainBinding
|
|
import org.oxycblt.auxio.music.Music
|
|
import org.oxycblt.auxio.music.Song
|
|
import org.oxycblt.auxio.playback.PlaybackViewModel
|
|
import org.oxycblt.auxio.playback.queue.QueueSheetBehavior
|
|
import org.oxycblt.auxio.playback.ui.PlaybackSheetBehavior
|
|
import org.oxycblt.auxio.ui.MainNavigationAction
|
|
import org.oxycblt.auxio.ui.NavigationViewModel
|
|
import org.oxycblt.auxio.ui.fragment.ViewBindingFragment
|
|
import org.oxycblt.auxio.util.androidActivityViewModels
|
|
import org.oxycblt.auxio.util.collect
|
|
import org.oxycblt.auxio.util.collectImmediately
|
|
import org.oxycblt.auxio.util.context
|
|
import org.oxycblt.auxio.util.coordinatorLayoutBehavior
|
|
import org.oxycblt.auxio.util.getAttrColorCompat
|
|
import org.oxycblt.auxio.util.getDimen
|
|
import org.oxycblt.auxio.util.systemBarInsetsCompat
|
|
import org.oxycblt.auxio.util.unlikelyToBeNull
|
|
import kotlin.math.max
|
|
import kotlin.math.min
|
|
|
|
/**
|
|
* A wrapper around the home fragment that shows the playback fragment and controls the more
|
|
* high-level navigation features.
|
|
* @author OxygenCobalt
|
|
*/
|
|
class MainFragment :
|
|
ViewBindingFragment<FragmentMainBinding>(), ViewTreeObserver.OnPreDrawListener {
|
|
private val playbackModel: PlaybackViewModel by androidActivityViewModels()
|
|
private val navModel: NavigationViewModel by activityViewModels()
|
|
private val callback = DynamicBackPressedCallback()
|
|
private var lastInsets: WindowInsets? = null
|
|
|
|
private val elevationNormal: Float by lifecycleObject { binding ->
|
|
binding.context.getDimen(R.dimen.elevation_normal)
|
|
}
|
|
|
|
override fun onCreate(savedInstanceState: Bundle?) {
|
|
super.onCreate(savedInstanceState)
|
|
enterTransition = MaterialFadeThrough()
|
|
exitTransition = MaterialFadeThrough()
|
|
}
|
|
|
|
override fun onCreateBinding(inflater: LayoutInflater) = FragmentMainBinding.inflate(inflater)
|
|
|
|
override fun onBindingCreated(binding: FragmentMainBinding, savedInstanceState: Bundle?) {
|
|
// --- UI SETUP ---
|
|
val context = requireActivity()
|
|
|
|
context.onBackPressedDispatcher.addCallback(viewLifecycleOwner, callback)
|
|
|
|
binding.root.setOnApplyWindowInsetsListener { _, insets ->
|
|
lastInsets = insets
|
|
insets
|
|
}
|
|
|
|
// Send meaningful accessibility events for bottom sheets
|
|
ViewCompat.setAccessibilityPaneTitle(
|
|
binding.playbackSheet,
|
|
context.getString(R.string.lbl_playback)
|
|
)
|
|
ViewCompat.setAccessibilityPaneTitle(
|
|
binding.queueSheet,
|
|
context.getString(R.string.lbl_queue)
|
|
)
|
|
|
|
val queueSheetBehavior = binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
if (queueSheetBehavior != null) {
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
unlikelyToBeNull(binding.handleWrapper).setOnClickListener {
|
|
if (playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_EXPANDED &&
|
|
queueSheetBehavior.state == NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
) {
|
|
queueSheetBehavior.state = NeoBottomSheetBehavior.STATE_EXPANDED
|
|
}
|
|
}
|
|
} else {
|
|
// Dual-pane mode, color/pad the queue sheet manually.
|
|
binding.queueSheet.apply {
|
|
background =
|
|
MaterialShapeDrawable.createWithElevationOverlay(context).apply {
|
|
fillColor = context.getAttrColorCompat(R.attr.colorSurface)
|
|
elevation = context.getDimen(R.dimen.elevation_normal)
|
|
}
|
|
|
|
setOnApplyWindowInsetsListener { v, insets ->
|
|
v.updatePadding(top = insets.systemBarInsetsCompat.top)
|
|
insets
|
|
}
|
|
}
|
|
}
|
|
|
|
// --- VIEWMODEL SETUP ---
|
|
|
|
collect(navModel.mainNavigationAction, ::handleMainNavigation)
|
|
collect(navModel.exploreNavigationItem, ::handleExploreNavigation)
|
|
collectImmediately(playbackModel.song, ::updateSong)
|
|
}
|
|
|
|
override fun onStart() {
|
|
super.onStart()
|
|
|
|
// Callback could still reasonably fire even if we clear the binding, attach/detach
|
|
// our pre-draw listener our listener in onStart/onStop respectively.
|
|
requireBinding().playbackSheet.viewTreeObserver.addOnPreDrawListener(this)
|
|
}
|
|
|
|
override fun onStop() {
|
|
super.onStop()
|
|
requireBinding().playbackSheet.viewTreeObserver.removeOnPreDrawListener(this)
|
|
}
|
|
|
|
override fun onPreDraw(): Boolean {
|
|
// CoordinatorLayout is insane and thus makes bottom sheet callbacks insane. Do our
|
|
// checks before every draw, which is not ideal in the slightest but also has minimal
|
|
// performance impact since we are only mutating attributes used during drawing.
|
|
val binding = requireBinding()
|
|
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
val playbackRatio = max(playbackSheetBehavior.calculateSlideOffset(), 0f)
|
|
|
|
val outPlaybackRatio = 1 - playbackRatio
|
|
val halfOutRatio = min(playbackRatio * 2, 1f)
|
|
val halfInPlaybackRatio = max(playbackRatio - 0.5f, 0f) * 2
|
|
|
|
val queueSheetBehavior = binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
if (queueSheetBehavior != null) {
|
|
// Queue sheet, take queue into account so the playback bar is shown and the playback
|
|
// panel is hidden when the queue sheet is expanded.
|
|
val queueRatio = max(queueSheetBehavior.calculateSlideOffset(), 0f)
|
|
val halfOutQueueRatio = min(queueRatio * 2, 1f)
|
|
val halfInQueueRatio = max(queueRatio - 0.5f, 0f) * 2
|
|
binding.playbackBarFragment.alpha = max(1 - halfOutRatio, halfInQueueRatio)
|
|
binding.playbackPanelFragment.alpha = min(halfInPlaybackRatio, 1 - halfOutQueueRatio)
|
|
binding.queueFragment.alpha = queueRatio
|
|
|
|
if (playbackModel.song.value != null) {
|
|
// Hack around the playback sheet intercepting swipe events on the queue bar
|
|
playbackSheetBehavior.isDraggable =
|
|
queueSheetBehavior.state == NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
}
|
|
} else {
|
|
// No queue sheet, fade normally based on the playback sheet
|
|
binding.playbackBarFragment.alpha = 1 - halfOutRatio
|
|
binding.playbackPanelFragment.alpha = halfInPlaybackRatio
|
|
}
|
|
|
|
binding.exploreNavHost.apply {
|
|
alpha = outPlaybackRatio
|
|
isInvisible = alpha == 0f
|
|
}
|
|
|
|
binding.playbackSheet.translationZ = elevationNormal * outPlaybackRatio
|
|
playbackSheetBehavior.sheetBackgroundDrawable.alpha = (outPlaybackRatio * 255).toInt()
|
|
|
|
binding.playbackBarFragment.apply {
|
|
isInvisible = alpha == 0f
|
|
lastInsets?.let { translationY = it.systemBarInsetsCompat.top * halfOutRatio }
|
|
}
|
|
|
|
binding.playbackPanelFragment.isInvisible = binding.playbackPanelFragment.alpha == 0f
|
|
|
|
binding.queueSheet.apply {
|
|
alpha = halfInPlaybackRatio
|
|
binding.queueSheet.isInvisible = alpha == 0f
|
|
}
|
|
|
|
binding.queueFragment.isInvisible = binding.queueFragment.alpha == 0f
|
|
|
|
if (playbackModel.song.value == null) {
|
|
// Sometimes lingering drags can un-hide the playback sheet even when we intend to
|
|
// hide it, make sure we keep it hidden.
|
|
tryHideAll()
|
|
}
|
|
|
|
// Since the callback is also reliant on the bottom sheets, we must also update it
|
|
// every frame.
|
|
callback.updateEnabledState()
|
|
|
|
return true
|
|
}
|
|
|
|
private fun updateSong(song: Song?) {
|
|
if (song != null) {
|
|
tryUnhideAll()
|
|
} else {
|
|
tryHideAll()
|
|
}
|
|
}
|
|
|
|
private fun handleMainNavigation(action: MainNavigationAction?) {
|
|
if (action == null) return
|
|
|
|
when (action) {
|
|
is MainNavigationAction.Expand -> tryExpandAll()
|
|
is MainNavigationAction.Collapse -> tryCollapseAll()
|
|
is MainNavigationAction.Directions ->
|
|
findNavController().navigate(action.directions)
|
|
}
|
|
|
|
navModel.finishMainNavigation()
|
|
}
|
|
|
|
private fun handleExploreNavigation(item: Music?) {
|
|
if (item != null) {
|
|
tryCollapseAll()
|
|
}
|
|
}
|
|
|
|
private fun tryExpandAll() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
if (playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_COLLAPSED) {
|
|
// State is collapsed and non-hidden, expand
|
|
playbackSheetBehavior.state = NeoBottomSheetBehavior.STATE_EXPANDED
|
|
}
|
|
}
|
|
|
|
private fun tryCollapseAll() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
if (playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_EXPANDED) {
|
|
// Make sure the queue is also collapsed here.
|
|
val queueSheetBehavior =
|
|
binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
playbackSheetBehavior.state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
queueSheetBehavior?.state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
}
|
|
}
|
|
|
|
private fun tryUnhideAll() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
if (playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_HIDDEN) {
|
|
val queueSheetBehavior =
|
|
binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
// Queue sheet behavior is either collapsed or expanded, no hiding needed
|
|
queueSheetBehavior?.isDraggable = true
|
|
|
|
playbackSheetBehavior.apply {
|
|
// Make sure the view is draggable, at least until the draw checks kick in.
|
|
isDraggable = true
|
|
state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
}
|
|
}
|
|
}
|
|
|
|
private fun tryHideAll() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
|
|
if (playbackSheetBehavior.state != NeoBottomSheetBehavior.STATE_HIDDEN) {
|
|
val queueSheetBehavior =
|
|
binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
// Make these views non-draggable so the user can't halt the hiding event.
|
|
|
|
queueSheetBehavior?.apply {
|
|
isDraggable = false
|
|
state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
}
|
|
|
|
playbackSheetBehavior.apply {
|
|
isDraggable = false
|
|
state = NeoBottomSheetBehavior.STATE_HIDDEN
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A back press callback that handles how to respond to backwards navigation in the detail
|
|
* fragments and the playback panel.
|
|
*/
|
|
private inner class DynamicBackPressedCallback : OnBackPressedCallback(false) {
|
|
override fun handleOnBackPressed() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
val queueSheetBehavior =
|
|
binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
if (queueSheetBehavior != null &&
|
|
queueSheetBehavior.state != NeoBottomSheetBehavior.STATE_COLLAPSED &&
|
|
playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_EXPANDED
|
|
) {
|
|
// Collapse the queue first if it is expanded.
|
|
queueSheetBehavior.state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
return
|
|
}
|
|
|
|
if (playbackSheetBehavior.state != NeoBottomSheetBehavior.STATE_COLLAPSED &&
|
|
playbackSheetBehavior.state != NeoBottomSheetBehavior.STATE_HIDDEN
|
|
) {
|
|
// Then collapse the playback sheet.
|
|
playbackSheetBehavior.state = NeoBottomSheetBehavior.STATE_COLLAPSED
|
|
return
|
|
}
|
|
|
|
binding.exploreNavHost.findNavController().navigateUp()
|
|
}
|
|
|
|
fun updateEnabledState() {
|
|
val binding = requireBinding()
|
|
val playbackSheetBehavior =
|
|
binding.playbackSheet.coordinatorLayoutBehavior as PlaybackSheetBehavior
|
|
val queueSheetBehavior =
|
|
binding.queueSheet.coordinatorLayoutBehavior as QueueSheetBehavior?
|
|
|
|
val exploreNavController = binding.exploreNavHost.findNavController()
|
|
|
|
isEnabled =
|
|
playbackSheetBehavior.state == NeoBottomSheetBehavior.STATE_EXPANDED ||
|
|
queueSheetBehavior?.state == NeoBottomSheetBehavior.STATE_EXPANDED ||
|
|
exploreNavController.currentDestination?.id !=
|
|
exploreNavController.graph.startDestinationId
|
|
}
|
|
}
|
|
}
|