132 lines
4.3 KiB
Kotlin
132 lines
4.3 KiB
Kotlin
package org.mozilla.fenix.collections
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.CompoundButton
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import androidx.recyclerview.widget.DiffUtil
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import androidx.recyclerview.widget.RecyclerView
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import io.reactivex.Observer
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import kotlinx.android.synthetic.main.collection_tab_list_row.view.*
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.launch
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import mozilla.components.browser.icons.IconRequest
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import org.mozilla.fenix.R
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import org.mozilla.fenix.ext.components
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import kotlin.coroutines.CoroutineContext
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class CollectionCreationTabListAdapter(
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val actionEmitter: Observer<CollectionCreationAction>
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) : RecyclerView.Adapter<TabViewHolder>() {
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private var tabs: List<Tab> = listOf()
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private var selectedTabs: Set<Tab> = setOf()
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private lateinit var job: Job
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TabViewHolder {
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val view = LayoutInflater.from(parent.context).inflate(TabViewHolder.LAYOUT_ID, parent, false)
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return TabViewHolder(view, actionEmitter, job)
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}
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override fun onBindViewHolder(holder: TabViewHolder, position: Int) {
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val tab = tabs[position]
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val isSelected = selectedTabs.contains(tab)
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holder.bind(tab, isSelected)
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}
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override fun getItemCount(): Int = tabs.size
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override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
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super.onAttachedToRecyclerView(recyclerView)
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job = Job()
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}
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override fun onDetachedFromRecyclerView(recyclerView: RecyclerView) {
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super.onDetachedFromRecyclerView(recyclerView)
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job.cancel()
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}
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fun updateData(tabs: List<Tab>, selectedTabs: Set<Tab>) {
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val diffUtil = DiffUtil.calculateDiff(TabDiffUtil(this.tabs, tabs, this.selectedTabs, selectedTabs))
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this.tabs = tabs
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this.selectedTabs = selectedTabs
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diffUtil.dispatchUpdatesTo(this)
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}
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}
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private class TabDiffUtil(
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val old: List<Tab>,
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val new: List<Tab>,
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val oldSelected: Set<Tab>,
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val newSelected: Set<Tab>
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) : DiffUtil.Callback() {
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override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean =
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old[oldItemPosition].sessionId == new[newItemPosition].sessionId
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override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
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val isSameTab = old[oldItemPosition].url == new[newItemPosition].url
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val sameSelectedState = oldSelected.contains(old[oldItemPosition]) == newSelected.contains(new[newItemPosition])
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return isSameTab && sameSelectedState
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}
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override fun getOldListSize(): Int = old.size
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override fun getNewListSize(): Int = new.size
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}
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class TabViewHolder(
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val view: View,
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actionEmitter: Observer<CollectionCreationAction>,
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val job: Job
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) :
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RecyclerView.ViewHolder(view), CoroutineScope {
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override val coroutineContext: CoroutineContext
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get() = Dispatchers.IO + job
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private var tab: Tab? = null
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private val checkbox = view.tab_selected_checkbox!!
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private val checkboxListener = CompoundButton.OnCheckedChangeListener { _, isChecked ->
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tab?.apply {
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val action = if (isChecked) CollectionCreationAction.AddTabToSelection(this)
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else CollectionCreationAction.RemoveTabFromSelection(this)
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actionEmitter.onNext(action)
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}
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}
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init {
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view.collection_item_tab.setOnClickListener {
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checkbox.isChecked = !checkbox.isChecked
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}
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}
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fun bind(tab: Tab, isSelected: Boolean) {
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this.tab = tab
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view.hostname.text = tab.hostname
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view.tab_title.text = tab.title
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checkbox.setOnCheckedChangeListener(null)
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if (checkbox.isChecked != isSelected) {
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checkbox.isChecked = isSelected
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}
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checkbox.setOnCheckedChangeListener(checkboxListener)
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launch(Dispatchers.IO) {
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val bitmap = view.favicon_image.context.components.utils.icons
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.loadIcon(IconRequest(tab.url)).await().bitmap
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launch(Dispatchers.Main) {
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view.favicon_image.setImageBitmap(bitmap)
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}
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}
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}
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companion object {
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const val LAYOUT_ID = R.layout.collection_tab_list_row
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}
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}
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