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45 lines
1.6 KiB
Kotlin
45 lines
1.6 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.tabstray
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import android.view.View
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import androidx.constraintlayout.widget.ConstraintLayout
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import com.google.android.material.bottomsheet.BottomSheetBehavior
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import com.google.android.material.bottomsheet.BottomSheetBehavior.STATE_HIDDEN
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class TraySheetBehaviorCallback(
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private val behavior: BottomSheetBehavior<ConstraintLayout>,
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private val trayInteractor: NavigationInteractor
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) : BottomSheetBehavior.BottomSheetCallback() {
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override fun onStateChanged(bottomSheet: View, newState: Int) {
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if (newState == STATE_HIDDEN) {
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trayInteractor.onTabTrayDismissed()
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} else if (newState == BottomSheetBehavior.STATE_HALF_EXPANDED) {
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// We only support expanded and collapsed states.
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// But why??
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behavior.state = STATE_HIDDEN
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}
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}
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override fun onSlide(bottomSheet: View, slideOffset: Float) = Unit
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}
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fun BottomSheetBehavior<ConstraintLayout>.setUpTrayBehavior(
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isLandscape: Boolean,
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maxNumberOfTabs: Int,
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numberForExpandingTray: Int,
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navigationInteractor: DefaultNavigationInteractor
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) {
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addBottomSheetCallback(
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TraySheetBehaviorCallback(this, navigationInteractor)
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)
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state = if (isLandscape || maxNumberOfTabs >= numberForExpandingTray) {
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BottomSheetBehavior.STATE_EXPANDED
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} else {
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BottomSheetBehavior.STATE_COLLAPSED
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}
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}
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