TabsTouchHelper.kt

Enable keyboard shortcuts

/* 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.reference.browser.tabs

import androidx.recyclerview.widget.ItemTouchHelper

import kotlin.math.abs

import mozilla.components.browser.state.state.TabSessionState

import mozilla.components.browser.tabstray.TabTouchCallback

class TabsTouchHelper(observable: (TabSessionState) -> Unit) :

    ItemTouchHelper(

        object : TabTouchCallback(observable) {

            override fun alphaForItemSwipe(

                dX: Float,

                distanceToAlphaMin: Int,

            ): Float = 1f - 2f * abs(dX) / distanceToAlphaMin