186 lines
7.0 KiB
Kotlin
186 lines
7.0 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.quickactionsheet
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import android.content.Context
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import android.util.AttributeSet
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import android.view.View
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import android.widget.LinearLayout
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import androidx.appcompat.widget.AppCompatImageButton
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import androidx.coordinatorlayout.widget.CoordinatorLayout
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import androidx.core.widget.NestedScrollView
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import com.google.android.material.bottomsheet.BottomSheetBehavior
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import mozilla.components.browser.toolbar.BrowserToolbar
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import org.mozilla.fenix.R
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import android.animation.ValueAnimator
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import android.os.Bundle
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import android.view.accessibility.AccessibilityEvent
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import android.view.accessibility.AccessibilityNodeInfo
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import androidx.interpolator.view.animation.FastOutSlowInInterpolator
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import org.mozilla.fenix.utils.Settings
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class QuickActionSheet @JvmOverloads constructor(
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context: Context,
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attrs: AttributeSet? = null,
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defStyle: Int = 0,
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defStyleRes: Int = 0
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) : LinearLayout(context, attrs, defStyle, defStyleRes) {
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init {
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inflate(getContext(), R.layout.layout_quick_action_sheet, this)
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}
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override fun onAttachedToWindow() {
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super.onAttachedToWindow()
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setupHandle()
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}
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private fun setupHandle() {
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val handle = findViewById<AppCompatImageButton>(R.id.quick_action_sheet_handle)
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val linearLayout = findViewById<LinearLayout>(R.id.quick_action_sheet)
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val quickActionSheetBehavior = BottomSheetBehavior.from(linearLayout.parent as View) as QuickActionSheetBehavior
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handle.setOnClickListener {
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bounceSheet(quickActionSheetBehavior)
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}
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handle.setAccessibilityDelegate(HandleAccessibilityDelegate(quickActionSheetBehavior))
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quickActionSheetBehavior.setBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
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override fun onStateChanged(v: View, state: Int) {
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updateImportantForAccessibility(state)
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}
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override fun onSlide(p0: View, p1: Float) {
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}
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})
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updateImportantForAccessibility(quickActionSheetBehavior.state)
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val settings = Settings.getInstance(context)
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if (settings.shouldAutoBounceQuickActionSheet) {
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settings.incrementAutomaticBounceQuickActionSheetCount()
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bounceSheet(quickActionSheetBehavior, demoBounceAnimationLength)
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}
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}
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private fun updateImportantForAccessibility(state: Int) {
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findViewById<LinearLayout>(R.id.quick_action_buttons_layout).importantForAccessibility =
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if (state == BottomSheetBehavior.STATE_COLLAPSED || state == BottomSheetBehavior.STATE_HIDDEN)
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View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
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else
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View.IMPORTANT_FOR_ACCESSIBILITY_AUTO
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}
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private fun bounceSheet(
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quickActionSheetBehavior: QuickActionSheetBehavior,
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duration: Long = bounceAnimationLength
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) {
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val normalPeekHeight = quickActionSheetBehavior.peekHeight
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val peakHeightMultiplier = if (duration == demoBounceAnimationLength)
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demoBounceAnimationPeekHeightMultiplier else bounceAnimationPeekHeightMultiplier
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ValueAnimator.ofFloat(normalPeekHeight.toFloat(),
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normalPeekHeight * peakHeightMultiplier)?.let {
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it.addUpdateListener {
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quickActionSheetBehavior.peekHeight = (it.animatedValue as Float).toInt()
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}
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it.repeatMode = ValueAnimator.REVERSE
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it.repeatCount = 1
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it.interpolator = FastOutSlowInInterpolator()
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it.duration = duration
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it.start()
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}
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}
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class HandleAccessibilityDelegate(
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private val quickActionSheetBehavior: QuickActionSheetBehavior
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) : View.AccessibilityDelegate() {
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private var finalState = BottomSheetBehavior.STATE_COLLAPSED
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get() = when (quickActionSheetBehavior.state) {
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BottomSheetBehavior.STATE_EXPANDED,
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BottomSheetBehavior.STATE_HIDDEN,
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BottomSheetBehavior.STATE_COLLAPSED -> {
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quickActionSheetBehavior.state
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}
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else -> field
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}
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set(value) {
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field = value
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quickActionSheetBehavior.state = value
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}
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override fun performAccessibilityAction(host: View?, action: Int, args: Bundle?): Boolean {
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when (action) {
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AccessibilityNodeInfo.ACTION_CLICK -> {
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finalState = when (quickActionSheetBehavior.state) {
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BottomSheetBehavior.STATE_EXPANDED -> BottomSheetBehavior.STATE_COLLAPSED
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else -> BottomSheetBehavior.STATE_EXPANDED
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}
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}
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AccessibilityNodeInfo.ACTION_COLLAPSE ->
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finalState = BottomSheetBehavior.STATE_COLLAPSED
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AccessibilityNodeInfo.ACTION_EXPAND ->
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finalState = BottomSheetBehavior.STATE_EXPANDED
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else -> return super.performAccessibilityAction(host, action, args)
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}
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host?.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED)
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return true
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}
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override fun onInitializeAccessibilityNodeInfo(host: View?, info: AccessibilityNodeInfo?) {
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super.onInitializeAccessibilityNodeInfo(host, info)
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info?.addAction(when (finalState) {
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BottomSheetBehavior.STATE_COLLAPSED,
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BottomSheetBehavior.STATE_HIDDEN -> AccessibilityNodeInfo.AccessibilityAction.ACTION_EXPAND
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else -> AccessibilityNodeInfo.AccessibilityAction.ACTION_COLLAPSE
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})
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}
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}
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companion object {
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const val demoBounceAnimationLength = 600L
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const val bounceAnimationLength = 400L
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const val demoBounceAnimationPeekHeightMultiplier = 4.5f
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const val bounceAnimationPeekHeightMultiplier = 3f
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}
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}
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@Suppress("unused") // Referenced from XML
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class QuickActionSheetBehavior(
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context: Context,
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attrs: AttributeSet
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) : BottomSheetBehavior<NestedScrollView>(context, attrs) {
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override fun layoutDependsOn(parent: CoordinatorLayout, child: NestedScrollView, dependency: View): Boolean {
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if (dependency is BrowserToolbar) {
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return true
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}
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return super.layoutDependsOn(parent, child, dependency)
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}
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override fun onDependentViewChanged(
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parent: CoordinatorLayout,
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child: NestedScrollView,
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dependency: View
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): Boolean {
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return if (dependency is BrowserToolbar) {
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repositionQuickActionSheet(child, dependency)
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true
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} else {
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false
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}
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}
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private fun repositionQuickActionSheet(quickActionSheetContainer: NestedScrollView, toolbar: BrowserToolbar) {
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quickActionSheetContainer.translationY = (toolbar.translationY + toolbar.height * -1.0).toFloat()
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}
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}
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