Gabriel Luong
4 years ago
committed by
GitHub
parent
9430546d12
commit
04dcfa5cab
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/* 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.home.sessioncontrol.viewholders
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import android.view.View
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import androidx.core.view.isVisible
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import androidx.recyclerview.widget.RecyclerView
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import androidx.viewpager2.widget.ViewPager2
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import kotlinx.android.synthetic.main.component_top_sites_pager.view.*
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import mozilla.components.feature.top.sites.TopSite
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import org.mozilla.fenix.R
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import org.mozilla.fenix.home.sessioncontrol.TopSiteInteractor
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import org.mozilla.fenix.home.sessioncontrol.viewholders.topsites.TopSitesPagerAdapter
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class TopSitePagerViewHolder(
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view: View,
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interactor: TopSiteInteractor
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) : RecyclerView.ViewHolder(view) {
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private val topSitesPagerAdapter = TopSitesPagerAdapter(interactor)
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private val pageIndicator = view.page_indicator
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private val topSitesPageChangeCallback = object : ViewPager2.OnPageChangeCallback() {
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override fun onPageSelected(position: Int) {
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pageIndicator.setSelection(position)
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}
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}
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init {
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view.top_sites_pager.apply {
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adapter = topSitesPagerAdapter
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registerOnPageChangeCallback(topSitesPageChangeCallback)
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}
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}
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fun bind(topSites: List<TopSite>) {
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topSitesPagerAdapter.updateData(topSites)
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// Don't show any page indicator if there is only 1 page.
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val numPages = if (topSites.size > TOP_SITES_PER_PAGE) {
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TOP_SITES_MAX_PAGE_SIZE
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} else {
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0
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}
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pageIndicator.isVisible = numPages > 1
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pageIndicator.setSize(numPages)
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}
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companion object {
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const val LAYOUT_ID = R.layout.component_top_sites_pager
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const val TOP_SITES_MAX_PAGE_SIZE = 2
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const val TOP_SITES_PER_PAGE = 8
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}
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}
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/* 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.home.sessioncontrol.viewholders.topsites
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import android.content.Context
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import android.util.AttributeSet
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import android.util.TypedValue
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import android.view.View
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import android.widget.LinearLayout
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import androidx.core.view.MarginLayoutParamsCompat
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import org.mozilla.fenix.R
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/**
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* A pager indicator widget to display the number of pages and the current selected page.
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*/
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class PagerIndicator : LinearLayout {
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constructor(context: Context) : super(context)
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constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
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constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
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private var selectedIndex = 0
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/**
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* Set the number of pager dots to display.
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*/
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fun setSize(size: Int) {
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if (childCount == size) {
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return
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}
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if (selectedIndex >= size) {
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selectedIndex = size - 1
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}
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removeAllViews()
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for (i in 0 until size) {
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val isLast = i == size - 1
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addView(
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View(context).apply {
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setBackgroundResource(R.drawable.pager_dot)
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isSelected = i == selectedIndex
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},
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LayoutParams(dpToPx(DOT_SIZE_IN_DP), dpToPx(DOT_SIZE_IN_DP)).apply {
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if (!isLast) {
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MarginLayoutParamsCompat.setMarginEnd(this, dpToPx(DOT_MARGIN))
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}
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}
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)
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}
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}
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/**
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* Set the current selected pager dot.
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*/
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fun setSelection(index: Int) {
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if (selectedIndex == index) {
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return
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}
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getChildAt(selectedIndex)?.run {
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isSelected = false
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}
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getChildAt(index)?.run {
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isSelected = true
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}
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selectedIndex = index
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}
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companion object {
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private const val DOT_SIZE_IN_DP = 6f
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private const val DOT_MARGIN = 4f
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}
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}
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fun Context.dpToPx(value: Float): Int =
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TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, value, resources.displayMetrics).toInt()
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fun View.dpToPx(value: Float): Int = context.dpToPx(value)
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/* 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.home.sessioncontrol.viewholders.topsites
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import androidx.recyclerview.widget.RecyclerView
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import mozilla.components.feature.top.sites.TopSite
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import org.mozilla.fenix.home.sessioncontrol.TopSiteInteractor
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import org.mozilla.fenix.home.sessioncontrol.viewholders.TopSiteViewHolder
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class TopSitesPagerAdapter(
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private val interactor: TopSiteInteractor
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) : RecyclerView.Adapter<TopSiteViewHolder>() {
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private var topSites: List<List<TopSite>> = listOf()
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fun updateData(topSites: List<TopSite>) {
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this.topSites = topSites.chunked(TOP_SITES_PER_PAGE)
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notifyDataSetChanged()
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}
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TopSiteViewHolder {
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val view = LayoutInflater.from(parent.context)
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.inflate(TopSiteViewHolder.LAYOUT_ID, parent, false)
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return TopSiteViewHolder(view, interactor)
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}
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override fun onBindViewHolder(holder: TopSiteViewHolder, position: Int) {
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holder.bind(this.topSites[position])
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}
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override fun getItemCount(): Int = this.topSites.size
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companion object {
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const val TOP_SITES_PER_PAGE = 8
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}
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}
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@ -0,0 +1,8 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!-- 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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<selector xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:color="@color/top_site_pager_dot_selected" android:state_selected="true" />
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<item android:color="@color/top_site_pager_dot" />
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</selector>
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@ -0,0 +1,12 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!-- 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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<shape xmlns:android="http://schemas.android.com/apk/res/android"
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android:shape="oval">
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<solid android:color="@color/pager_dot"/>
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<size
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android:width="6dp"
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android:height="6dp"/>
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</shape>
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@ -0,0 +1,24 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!-- 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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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="vertical">
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<androidx.viewpager2.widget.ViewPager2
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android:id="@+id/top_sites_pager"
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android:layout_width="match_parent"
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android:layout_height="wrap_content" />
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<org.mozilla.fenix.home.sessioncontrol.viewholders.topsites.PagerIndicator
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android:id="@+id/page_indicator"
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android:layout_width="wrap_content"
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android:layout_height="6dp"
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android:layout_gravity="center_horizontal"
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android:layout_marginBottom="8dp"
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android:orientation="horizontal" />
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</LinearLayout>
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