Merge pull request #1690 from kiwix/feature/macgills/716-merge-download-library

Feature/macgills/716 merge download library

app/src/androidTest/java/org/kiwix/kiwixmobile/main/MainActivityTest.java

@@ -81,12 +81,4 @@ public class MainActivityTest {
     BaristaSleepInteractions.sleep(TEST_PAUSE_MS);
     clickOn(R.string.remote_zims);
   }
-
-  @Test
-  public void navigateDownloadingContent() {
-    BaristaSleepInteractions.sleep(TEST_PAUSE_MS);
-    BaristaMenuClickInteractions.clickMenu(getResourceString(R.string.menu_zim_manager));
-    BaristaSleepInteractions.sleep(TEST_PAUSE_MS);
-    clickOn(R.string.zim_downloads);
-  }
 }

app/src/androidTest/java/org/kiwix/kiwixmobile/zim_manager/ZimManageActivityTest.kt

@@ -63,20 +63,13 @@ class ZimManageActivityTest : BaseActivityTest<ZimManageActivity>() {
         forceResponse("012345678901234567890123456789012345678901234567890123456789012345678")
         attempt(10) {
           clickOn(book)
-          waitForEmptyView()
-        }
-      }
-      clickOnDownloading {
           clickStop()
           clickNegativeDialogButton()
           clickStop()
           clickPositiveDialogButton()
         }
-      clickOnOnline {
         forceResponse("01234")
         clickOn(book)
-      }
-      clickOnDownloading {
         waitForEmptyView()
       }
       clickOnDevice {
@@ -90,9 +83,10 @@ class ZimManageActivityTest : BaseActivityTest<ZimManageActivity>() {
         clickPositiveDialogButton()
         waitForEmptyView()
       }
-      clickOnOnline { }
+      clickOnOnline {
       } clickOnLanguageIcon { }
     }
+  }
 
   private fun forceResponse(body: String) {
     mockServer.forceResponse(

app/src/androidTest/java/org/kiwix/kiwixmobile/zim_manager/ZimManageRobot.kt

@@ -42,22 +42,11 @@ class ZimManageRobot : BaseRobot() {
     return library(func)
   }
 
-  fun clickOnDownloading(func: DownloadRobot.() -> Unit): DownloadRobot {
-    clickOnTab(R.string.zim_downloads)
-    return download(func)
-  }
-
   fun clickOnDevice(func: DeviceRobot.() -> Unit): DeviceRobot {
     clickOnTab(R.string.local_zims)
     return device(func)
   }
 
-  infix fun clickOnLanguageIcon(function: LanguageRobot.() -> Unit): LanguageRobot {
-    TextId(R.string.remote_zims)
-    clickOn(ViewId(R.id.select_language))
-    return language(function)
-  }
-
   private fun library(func: LibraryRobot.() -> Unit) = LibraryRobot().apply(func)
   inner class LibraryRobot : BaseRobot() {
     init {
@@ -79,20 +68,15 @@ class ZimManageRobot : BaseRobot() {
     fun waitForEmptyView() {
       isVisible(ViewId(R.id.libraryErrorText), VERY_LONG_WAIT)
     }
-  }
-
-  private fun download(func: DownloadRobot.() -> Unit) = DownloadRobot().apply(func)
-  inner class DownloadRobot : BaseRobot() {
-    init {
-      isVisible(ViewId(R.id.zim_download_root))
-    }
 
     fun clickStop() {
       clickOn(ViewId(R.id.stop), LONG_WAIT)
     }
 
-    fun waitForEmptyView() {
-      isVisible(ViewId(R.id.download_management_no_downloads), 11000L)
+    infix fun clickOnLanguageIcon(function: LanguageRobot.() -> Unit): LanguageRobot {
+      TextId(R.string.remote_zims)
+      clickOn(ViewId(R.id.select_language))
+      return language(function)
     }
   }
 

app/src/main/java/org/kiwix/kiwixmobile/di/components/KiwixActivityComponent.kt

@@ -32,7 +32,6 @@ import org.kiwix.kiwixmobile.splash.KiwixSplashActivity
 import org.kiwix.kiwixmobile.webserver.ZimHostActivity
 import org.kiwix.kiwixmobile.webserver.ZimHostModule
 import org.kiwix.kiwixmobile.zim_manager.ZimManageActivity
-import org.kiwix.kiwixmobile.zim_manager.download_view.DownloadFragment
 import org.kiwix.kiwixmobile.zim_manager.fileselect_view.ZimFileSelectFragment
 import org.kiwix.kiwixmobile.zim_manager.fileselect_view.effects.DeleteFiles
 import org.kiwix.kiwixmobile.zim_manager.library_view.LibraryFragment
@@ -46,7 +45,6 @@ import org.kiwix.kiwixmobile.zim_manager.library_view.LibraryFragment
   ]
 )
 interface KiwixActivityComponent {
-  fun inject(downloadFragment: DownloadFragment)
   fun inject(libraryFragment: LibraryFragment)
   fun inject(zimFileSelectFragment: ZimFileSelectFragment)
   fun inject(deleteFiles: DeleteFiles)

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/SectionsPagerAdapter.kt

@@ -20,31 +20,30 @@ package org.kiwix.kiwixmobile.zim_manager
 import android.content.Context
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.FragmentPagerAdapter
-import org.kiwix.kiwixmobile.core.R
-import org.kiwix.kiwixmobile.zim_manager.download_view.DownloadFragment
+import org.kiwix.kiwixmobile.core.R.string
+import org.kiwix.kiwixmobile.core.base.BaseFragment
 import org.kiwix.kiwixmobile.zim_manager.fileselect_view.ZimFileSelectFragment
 import org.kiwix.kiwixmobile.zim_manager.library_view.LibraryFragment
+import kotlin.reflect.KFunction0
 
 class SectionsPagerAdapter(
   private val context: Context,
+  private val pagerData: Array<PagerData> =
+    arrayOf(
+      PagerData(::ZimFileSelectFragment, string.local_zims),
+      PagerData(::LibraryFragment, string.remote_zims)
+    ),
   fm: FragmentManager
 ) : FragmentPagerAdapter(fm) {
 
-  override fun getItem(position: Int) = when (position) {
-    0 -> ZimFileSelectFragment()
-    1 -> LibraryFragment()
-    2 -> DownloadFragment()
-    else -> throw RuntimeException("No matching fragment for position: $position")
+  override fun getItem(position: Int) = pagerData[position].fragmentConstructor.invoke()
+
+  override fun getCount() = pagerData.size
+
+  override fun getPageTitle(position: Int): String = context.getString(pagerData[position].title)
 }
 
-  override fun getCount() = 3
-
-  override fun getPageTitle(position: Int): String = context.getString(
-    when (position) {
-      0 -> R.string.local_zims
-      1 -> R.string.remote_zims
-      2 -> R.string.zim_downloads
-      else -> throw RuntimeException("No matching title for position: $position")
-    }
+data class PagerData(
+  val fragmentConstructor: KFunction0<BaseFragment>,
+  val title: Int
 )
-}

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/ZimManageActivity.kt

@@ -19,7 +19,6 @@ package org.kiwix.kiwixmobile.zim_manager
 
 import android.content.Intent
 import android.os.Bundle
-import android.provider.Settings.System
 import android.view.Menu
 import android.view.MenuItem
 import androidx.appcompat.widget.SearchView
@@ -31,9 +30,7 @@ import org.kiwix.kiwixmobile.R
 import org.kiwix.kiwixmobile.core.base.BaseActivity
 import org.kiwix.kiwixmobile.core.dao.NewLanguagesDao
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.start
-import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.startWithActionFrom
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.viewModel
-import org.kiwix.kiwixmobile.core.main.CoreMainActivity
 import org.kiwix.kiwixmobile.core.utils.LanguageUtils
 import org.kiwix.kiwixmobile.kiwixActivityComponent
 import org.kiwix.kiwixmobile.language.LanguageActivity
@@ -45,8 +42,8 @@ class ZimManageActivity : BaseActivity() {
   val cachedComponent by lazy { kiwixActivityComponent }
 
   private val zimManageViewModel by lazy { viewModel<ZimManageViewModel>(viewModelFactory) }
-  private val mSectionsPagerAdapter: SectionsPagerAdapter by lazy {
-    SectionsPagerAdapter(this, supportFragmentManager)
+  private val sectionsPagerAdapter: SectionsPagerAdapter by lazy {
+    SectionsPagerAdapter(this, fm = supportFragmentManager)
   }
 
   private var searchItem: MenuItem? = null
@@ -67,8 +64,8 @@ class ZimManageActivity : BaseActivity() {
 
     setUpToolbar()
     manageViewPager.run {
-      adapter = mSectionsPagerAdapter
-      offscreenPageLimit = 2
+      adapter = sectionsPagerAdapter
+      offscreenPageLimit = sectionsPagerAdapter.count - 1
       tabs.setupWithViewPager(this)
       addOnPageChangeListener(SimplePageChangeListener(::updateMenu))
     }
@@ -105,24 +102,14 @@ class ZimManageActivity : BaseActivity() {
     }
   }
 
-  override fun onBackPressed() {
-    val value = System.getInt(contentResolver, System.ALWAYS_FINISH_ACTIVITIES, 0)
-    if (value == 1) {
-      startWithActionFrom<CoreMainActivity>()
-    } else {
-      super.onBackPressed() // optional depending on your needs
-    }
-  }
-
   override fun onCreateOptionsMenu(menu: Menu): Boolean {
     // Inflate the menu; this adds items to the action bar if it is present.
     menuInflater.inflate(R.menu.menu_zim_manager, menu)
     searchItem = menu.findItem(R.id.action_search)
     languageItem = menu.findItem(R.id.select_language)
     getZimItem = menu.findItem(R.id.get_zim_nearby_device)
-    val searchView = searchItem!!.actionView as SearchView
     updateMenu(manageViewPager.currentItem)
-    searchView.setOnQueryTextListener(
+    (searchItem?.actionView as? SearchView)?.setOnQueryTextListener(
       SimpleTextListener(zimManageViewModel.requestFiltering::onNext)
     )
     return true

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModel.kt

@@ -38,7 +38,6 @@ import org.kiwix.kiwixmobile.core.dao.NewBookDao
 import org.kiwix.kiwixmobile.core.dao.NewLanguagesDao
 import org.kiwix.kiwixmobile.core.data.DataSource
 import org.kiwix.kiwixmobile.core.data.remote.KiwixService
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
 import org.kiwix.kiwixmobile.core.downloader.model.DownloadModel
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity.Book
@@ -67,6 +66,7 @@ import org.kiwix.kiwixmobile.zim_manager.fileselect_view.effects.StartMultiSelec
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.BookItem
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.DividerItem
+import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.LibraryDownloadItem
 import java.util.LinkedList
 import java.util.Locale
 import java.util.concurrent.TimeUnit.MILLISECONDS
@@ -97,7 +97,6 @@ class ZimManageViewModel @Inject constructor(
 
   val sideEffects = PublishProcessor.create<SideEffect<out Any?>>()
   val libraryItems: MutableLiveData<List<LibraryListItem>> = MutableLiveData()
-  val downloadItems: MutableLiveData<List<DownloadItem>> = MutableLiveData()
   val fileSelectListStates: MutableLiveData<FileSelectListState> = MutableLiveData()
   val deviceListIsRefreshing = MutableLiveData<Boolean>()
   val libraryListIsRefreshing = MutableLiveData<Boolean>()
@@ -132,7 +131,6 @@ class ZimManageViewModel @Inject constructor(
     val networkLibrary = PublishProcessor.create<LibraryNetworkEntity>()
     val languages = languageDao.languages()
     return arrayOf(
-      updateDownloadItems(downloads),
       updateBookItems(),
       checkFileSystemForBooksOnRequest(booksFromDao),
       updateLibraryItems(booksFromDao, downloads, networkLibrary, languages),
@@ -343,64 +341,65 @@ class ZimManageViewModel @Inject constructor(
     filter: String,
     fileSystemState: FileSystemState
   ): List<LibraryListItem> {
-    val downloadedBooksIds = booksOnFileSystem.map { it.book.id }
-    val downloadingBookIds = activeDownloads.map { it.book.id }
     val activeLanguageCodes = allLanguages.filter(Language::active)
       .map(Language::languageCode)
     val booksUnfilteredByLanguage =
-      applyUserFilter(
-        libraryNetworkEntity.books
-          .filterNot { downloadedBooksIds.contains(it.id) }
-          .filterNot { downloadingBookIds.contains(it.id) },
+      applySearchFilter(
+        libraryNetworkEntity.books - booksOnFileSystem.map(BookOnDisk::book),
         filter
       )
 
-    return listOf(
-      *createLibrarySection(
-        booksUnfilteredByLanguage.filter { activeLanguageCodes.contains(it.language) },
+    val booksWithActiveLanguages =
+      booksUnfilteredByLanguage.filter { activeLanguageCodes.contains(it.language) }
+    return createLibrarySection(
+      booksWithActiveLanguages,
+      activeDownloads,
       fileSystemState,
       R.string.your_languages,
       Long.MAX_VALUE
-      ),
-      *createLibrarySection(
-        booksUnfilteredByLanguage.filterNot { activeLanguageCodes.contains(it.language) },
+    ) +
+      createLibrarySection(
+        booksUnfilteredByLanguage - booksWithActiveLanguages,
+        activeDownloads,
         fileSystemState,
         R.string.other_languages,
         Long.MIN_VALUE
       )
-    )
   }
 
   private fun createLibrarySection(
     books: List<Book>,
+    activeDownloads: List<DownloadModel>,
     fileSystemState: FileSystemState,
     sectionStringId: Int,
     sectionId: Long
   ) =
     if (books.isNotEmpty())
-      arrayOf(
-        DividerItem(sectionId, context.getString(sectionStringId)),
-        *toBookItems(books, fileSystemState)
-      )
-    else emptyArray()
+      listOf(DividerItem(sectionId, context.getString(sectionStringId))) +
+        books.asLibraryItems(activeDownloads, fileSystemState)
+    else emptyList()
 
-  private fun applyUserFilter(
-    booksUnfilteredByLanguage: List<Book>,
+  private fun applySearchFilter(
+    unDownloadedBooks: List<Book>,
     filter: String
   ) = if (filter.isEmpty()) {
-    booksUnfilteredByLanguage
+    unDownloadedBooks
   } else {
-    booksUnfilteredByLanguage.forEach { it.calculateSearchMatches(filter, bookUtils) }
-    booksUnfilteredByLanguage.filter { it.searchMatches > 0 }
+    unDownloadedBooks.forEach { it.calculateSearchMatches(filter, bookUtils) }
+    unDownloadedBooks.filter { it.searchMatches > 0 }
   }
 
-  private fun toBookItems(
-    books: List<Book>,
+  private fun List<Book>.asLibraryItems(
+    activeDownloads: List<DownloadModel>,
     fileSystemState: FileSystemState
-  ) =
-    books.map { BookItem(it, fileSystemState) }.toTypedArray()
+  ) = map { book ->
+    activeDownloads.firstOrNull { download -> download.book == book }
+      ?.let(::LibraryDownloadItem)
+      ?: BookItem(book, fileSystemState)
+  }
 
-  private fun checkFileSystemForBooksOnRequest(booksFromDao: Flowable<List<BookOnDisk>>) =
+  private fun checkFileSystemForBooksOnRequest(booksFromDao: Flowable<List<BookOnDisk>>):
+    Disposable =
     requestFileSystemCheck
       .subscribeOn(Schedulers.io())
       .observeOn(Schedulers.io())
@@ -462,12 +461,4 @@ class ZimManageViewModel @Inject constructor(
         newBookOnDisk.apply { isSelected = firstOrNull?.isSelected ?: false }
       })
   }
-
-  private fun updateDownloadItems(downloadModels: Flowable<List<DownloadModel>>) =
-    downloadModels
-      .map { it.map(::DownloadItem) }
-      .subscribe(
-        downloadItems::postValue,
-        Throwable::printStackTrace
-      )
 }

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/download_view/DownloadAdapter.kt

@@ -1,59 +0,0 @@
-/*
- * Kiwix Android
- * Copyright (c) 2019 Kiwix <android.kiwix.org>
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package org.kiwix.kiwixmobile.zim_manager.download_view
-
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import org.kiwix.kiwixmobile.R
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
-import org.kiwix.kiwixmobile.core.extensions.ViewGroupExtensions.inflate
-
-class DownloadAdapter(private val itemClickListener: (DownloadItem) -> Unit) :
-  RecyclerView.Adapter<DownloadViewHolder>() {
-
-  init {
-    setHasStableIds(true)
-  }
-
-  var itemList: List<DownloadItem> = mutableListOf()
-    set(value) {
-      field = value
-      notifyDataSetChanged()
-    }
-
-  override fun getItemId(position: Int) = itemList[position].downloadId
-
-  override fun onCreateViewHolder(
-    parent: ViewGroup,
-    viewType: Int
-  ) = DownloadViewHolder(
-    parent.inflate(
-      R.layout.download_item,
-      false
-    )
-  )
-
-  override fun getItemCount() = itemList.size
-
-  override fun onBindViewHolder(
-    holder: DownloadViewHolder,
-    position: Int
-  ) {
-    holder.bind(itemList[position], itemClickListener)
-  }
-}

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/download_view/DownloadFragment.kt

@@ -1,94 +0,0 @@
-/*
- * Kiwix Android
- * Copyright (c) 2019 Kiwix <android.kiwix.org>
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package org.kiwix.kiwixmobile.zim_manager.download_view
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.lifecycle.Observer
-import androidx.lifecycle.ViewModelProvider
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
-import kotlinx.android.synthetic.main.layout_download_management.download_management_no_downloads
-import kotlinx.android.synthetic.main.layout_download_management.zim_downloader_list
-import org.kiwix.kiwixmobile.R
-import org.kiwix.kiwixmobile.core.base.BaseActivity
-import org.kiwix.kiwixmobile.core.base.BaseFragment
-import org.kiwix.kiwixmobile.core.downloader.Downloader
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
-import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.viewModel
-import org.kiwix.kiwixmobile.core.utils.DialogShower
-import org.kiwix.kiwixmobile.core.utils.KiwixDialog.YesNoDialog.StopDownload
-import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
-import org.kiwix.kiwixmobile.zim_manager.ZimManageActivity
-import org.kiwix.kiwixmobile.zim_manager.ZimManageViewModel
-import javax.inject.Inject
-
-class DownloadFragment : BaseFragment() {
-
-  @Inject lateinit var viewModelFactory: ViewModelProvider.Factory
-  @Inject lateinit var dialogShower: DialogShower
-  @Inject lateinit var sharedPreferenceUtil: SharedPreferenceUtil
-  @Inject lateinit var downloader: Downloader
-
-  private val zimManageViewModel by lazy {
-    activity!!.viewModel<ZimManageViewModel>(viewModelFactory)
-  }
-
-  private val downloadAdapter = DownloadAdapter {
-    dialogShower.show(StopDownload, { downloader.cancelDownload(it) })
-  }
-
-  override fun inject(baseActivity: BaseActivity) {
-    (baseActivity as ZimManageActivity).cachedComponent.inject(this)
-  }
-
-  override fun onCreateView(
-    inflater: LayoutInflater,
-    container: ViewGroup?,
-    savedInstanceState: Bundle?
-  ): View =
-    inflater.inflate(R.layout.layout_download_management, container, false)
-
-  override fun onViewCreated(
-    view: View,
-    savedInstanceState: Bundle?
-  ) {
-    super.onViewCreated(view, savedInstanceState)
-    zim_downloader_list.run {
-      adapter = downloadAdapter
-      layoutManager = LinearLayoutManager(context, RecyclerView.VERTICAL, false)
-      setHasFixedSize(true)
-    }
-    zimManageViewModel.downloadItems.observe(this, Observer {
-      onDownloadItemsUpdate(it!!)
-    })
-  }
-
-  private fun onDownloadItemsUpdate(items: List<DownloadItem>) {
-    downloadAdapter.itemList = items
-    updateNoDownloads(items)
-  }
-
-  private fun updateNoDownloads(downloadItems: List<DownloadItem>) {
-    download_management_no_downloads.visibility =
-      if (downloadItems.isEmpty()) View.VISIBLE
-      else View.GONE
-  }
-}

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/download_view/DownloadViewHolder.kt

@@ -1,49 +0,0 @@
-/*
- * Kiwix Android
- * Copyright (c) 2019 Kiwix <android.kiwix.org>
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package org.kiwix.kiwixmobile.zim_manager.download_view
-
-import android.view.View
-import androidx.recyclerview.widget.RecyclerView
-import kotlinx.android.extensions.LayoutContainer
-import kotlinx.android.synthetic.main.download_item.description
-import kotlinx.android.synthetic.main.download_item.downloadProgress
-import kotlinx.android.synthetic.main.download_item.downloadState
-import kotlinx.android.synthetic.main.download_item.eta
-import kotlinx.android.synthetic.main.download_item.favicon
-import kotlinx.android.synthetic.main.download_item.stop
-import kotlinx.android.synthetic.main.download_item.title
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
-import org.kiwix.kiwixmobile.core.extensions.setBitmap
-
-class DownloadViewHolder(override val containerView: View) : RecyclerView.ViewHolder(containerView),
-  LayoutContainer {
-  fun bind(
-    downloadItem: DownloadItem,
-    itemClickListener: (DownloadItem) -> Unit
-  ) {
-    favicon.setBitmap(downloadItem.favIcon)
-    title.text = downloadItem.title
-    description.text = downloadItem.description
-    downloadProgress.progress = downloadItem.progress
-    stop.setOnClickListener {
-      itemClickListener.invoke(downloadItem)
-    }
-    downloadState.text = downloadItem.downloadState.toReadableState(containerView.context)
-    eta.text = downloadItem.readableEta
-  }
-}

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/LibraryFragment.kt

@@ -45,10 +45,10 @@ import org.kiwix.kiwixmobile.core.extensions.toast
 import org.kiwix.kiwixmobile.core.settings.StorageCalculator
 import org.kiwix.kiwixmobile.core.utils.BookUtils
 import org.kiwix.kiwixmobile.core.utils.DialogShower
+import org.kiwix.kiwixmobile.core.utils.KiwixDialog.YesNoDialog.StopDownload
 import org.kiwix.kiwixmobile.core.utils.KiwixDialog.YesNoDialog.WifiOnly
 import org.kiwix.kiwixmobile.core.utils.NetworkUtils
 import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
-import org.kiwix.kiwixmobile.core.utils.TestingUtils
 import org.kiwix.kiwixmobile.zim_manager.NetworkState
 import org.kiwix.kiwixmobile.zim_manager.NetworkState.CONNECTED
 import org.kiwix.kiwixmobile.zim_manager.NetworkState.NOT_CONNECTED
@@ -57,6 +57,7 @@ import org.kiwix.kiwixmobile.zim_manager.ZimManageViewModel
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryAdapter
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryDelegate.BookDelegate
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryDelegate.DividerDelegate
+import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryDelegate.DownloadDelegate
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.BookItem
 import java.io.File
@@ -78,7 +79,11 @@ class LibraryFragment : BaseFragment() {
 
   private val libraryAdapter: LibraryAdapter by lazy {
     LibraryAdapter(
-      BookDelegate(bookUtils, ::onBookItemClick), DividerDelegate
+      BookDelegate(bookUtils, ::onBookItemClick),
+      DownloadDelegate {
+        dialogShower.show(StopDownload, { downloader.cancelDownload(it.downloadId) })
+      },
+      DividerDelegate
     )
   }
 
@@ -98,10 +103,7 @@ class LibraryFragment : BaseFragment() {
     inflater: LayoutInflater,
     container: ViewGroup?,
     savedInstanceState: Bundle?
-  ): View? {
-    TestingUtils.bindResource(LibraryFragment::class.java)
-    return inflater.inflate(R.layout.activity_library, container, false)
-  }
+  ): View = inflater.inflate(R.layout.activity_library, container, false)
 
   override fun onViewCreated(
     view: View,
@@ -148,7 +150,6 @@ class LibraryFragment : BaseFragment() {
         else string.no_items_msg
       )
       libraryErrorText.visibility = VISIBLE
-      TestingUtils.unbindResource(LibraryFragment::class.java)
     } else {
       libraryErrorText.visibility = GONE
     }

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/adapter/LibraryDelegate.kt

@@ -19,11 +19,13 @@ package org.kiwix.kiwixmobile.zim_manager.library_view.adapter
 
 import android.view.ViewGroup
 import org.kiwix.kiwixmobile.R
+import org.kiwix.kiwixmobile.core.base.adapter.AbsDelegateAdapter
 import org.kiwix.kiwixmobile.core.extensions.ViewGroupExtensions.inflate
 import org.kiwix.kiwixmobile.core.utils.BookUtils
-import org.kiwix.kiwixmobile.core.base.adapter.AbsDelegateAdapter
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.BookItem
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.DividerItem
+import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.LibraryDownloadItem
+import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryViewHolder.DownloadViewHolder
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryViewHolder.LibraryBookViewHolder
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryViewHolder.LibraryDividerViewHolder
 
@@ -44,6 +46,14 @@ sealed class LibraryDelegate<I : LibraryListItem, out VH : LibraryViewHolder<I>>
       )
   }
 
+  class DownloadDelegate(private val clickAction: (LibraryDownloadItem) -> Unit) :
+    LibraryDelegate<LibraryDownloadItem, DownloadViewHolder>() {
+    override val itemClass = LibraryDownloadItem::class.java
+
+    override fun createViewHolder(parent: ViewGroup) =
+      DownloadViewHolder(parent.inflate(R.layout.item_download, false), clickAction)
+  }
+
   object DividerDelegate : LibraryDelegate<DividerItem, LibraryDividerViewHolder>() {
 
     override val itemClass = DividerItem::class.java

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/adapter/LibraryListItem.kt

@@ -18,6 +18,10 @@
 
 package org.kiwix.kiwixmobile.zim_manager.library_view.adapter
 
+import org.kiwix.kiwixmobile.core.downloader.model.Base64String
+import org.kiwix.kiwixmobile.core.downloader.model.DownloadModel
+import org.kiwix.kiwixmobile.core.downloader.model.DownloadState
+import org.kiwix.kiwixmobile.core.downloader.model.Seconds
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity.Book
 import org.kiwix.kiwixmobile.core.zim_manager.KiwixTag
 import org.kiwix.kiwixmobile.zim_manager.Fat32Checker
@@ -53,4 +57,33 @@ sealed class LibraryListItem {
         size.toLongOrNull() ?: 0L < Fat32Checker.FOUR_GIGABYTES_IN_KILOBYTES
     }
   }
+
+  data class LibraryDownloadItem(
+    val downloadId: Long,
+    val favIcon: Base64String,
+    val title: String,
+    val description: String,
+    val bytesDownloaded: Long,
+    val totalSizeBytes: Long,
+    val progress: Int,
+    val eta: Seconds,
+    val downloadState: DownloadState,
+    override val id: Long
+  ) : LibraryListItem() {
+
+    val readableEta: CharSequence = eta.takeIf { it.seconds > 0L }?.toHumanReadableTime() ?: ""
+
+    constructor(downloadModel: DownloadModel) : this(
+      downloadModel.downloadId,
+      Base64String(downloadModel.book.favicon),
+      downloadModel.book.title,
+      downloadModel.book.description,
+      downloadModel.bytesDownloaded,
+      downloadModel.totalSizeOfDownload,
+      downloadModel.progress,
+      Seconds(downloadModel.etaInMilliSeconds / 1000L),
+      DownloadState.from(downloadModel.state, downloadModel.error),
+      downloadModel.book.id.hashCode().toLong()
+    )
+  }
 }

app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/adapter/LibraryViewHolder.kt

@@ -23,16 +23,23 @@ import android.view.View
 import android.view.View.MeasureSpec
 import android.widget.Toast
 import androidx.annotation.StringRes
-import kotlinx.android.synthetic.main.item_library.creator
-import kotlinx.android.synthetic.main.item_library.date
-import kotlinx.android.synthetic.main.item_library.description
-import kotlinx.android.synthetic.main.item_library.favicon
-import kotlinx.android.synthetic.main.item_library.fileName
-import kotlinx.android.synthetic.main.item_library.language
-import kotlinx.android.synthetic.main.item_library.publisher
-import kotlinx.android.synthetic.main.item_library.size
+import kotlinx.android.synthetic.main.item_download.downloadProgress
+import kotlinx.android.synthetic.main.item_download.downloadState
+import kotlinx.android.synthetic.main.item_download.eta
+import kotlinx.android.synthetic.main.item_download.libraryDownloadDescription
+import kotlinx.android.synthetic.main.item_download.libraryDownloadFavicon
+import kotlinx.android.synthetic.main.item_download.libraryDownloadTitle
+import kotlinx.android.synthetic.main.item_download.stop
+import kotlinx.android.synthetic.main.item_library.libraryBookCreator
+import kotlinx.android.synthetic.main.item_library.libraryBookDate
+import kotlinx.android.synthetic.main.item_library.libraryBookDescription
+import kotlinx.android.synthetic.main.item_library.libraryBookFavicon
+import kotlinx.android.synthetic.main.item_library.libraryBookFileName
+import kotlinx.android.synthetic.main.item_library.libraryBookLanguage
+import kotlinx.android.synthetic.main.item_library.libraryBookPublisher
+import kotlinx.android.synthetic.main.item_library.libraryBookSize
+import kotlinx.android.synthetic.main.item_library.libraryBookTitle
 import kotlinx.android.synthetic.main.item_library.tags
-import kotlinx.android.synthetic.main.item_library.title
 import kotlinx.android.synthetic.main.item_library.unableToDownload
 import kotlinx.android.synthetic.main.library_divider.divider_text
 import org.kiwix.kiwixmobile.R
@@ -48,6 +55,7 @@ import org.kiwix.kiwixmobile.zim_manager.Fat32Checker.FileSystemState.CannotWrit
 import org.kiwix.kiwixmobile.zim_manager.Fat32Checker.FileSystemState.Unknown
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.BookItem
 import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.DividerItem
+import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem.LibraryDownloadItem
 
 sealed class LibraryViewHolder<in T : LibraryListItem>(containerView: View) :
   BaseViewHolder<T>(containerView) {
@@ -58,15 +66,15 @@ sealed class LibraryViewHolder<in T : LibraryListItem>(containerView: View) :
     private val clickAction: (BookItem) -> Unit
   ) : LibraryViewHolder<BookItem>(view) {
     override fun bind(item: BookItem) {
-      title.setTextAndVisibility(item.book.title)
-      description.setTextAndVisibility(item.book.description)
-      creator.setTextAndVisibility(item.book.creator)
-      publisher.setTextAndVisibility(item.book.publisher)
-      date.setTextAndVisibility(item.book.date)
-      size.setTextAndVisibility(KiloByte(item.book.size).humanReadable)
-      language.text = bookUtils.getLanguage(item.book.getLanguage())
-      fileName.text = NetworkUtils.parseURL(CoreApp.getInstance(), item.book.url)
-      favicon.setBitmap(Base64String(item.book.favicon))
+      libraryBookTitle.setTextAndVisibility(item.book.title)
+      libraryBookDescription.setTextAndVisibility(item.book.description)
+      libraryBookCreator.setTextAndVisibility(item.book.creator)
+      libraryBookPublisher.setTextAndVisibility(item.book.publisher)
+      libraryBookDate.setTextAndVisibility(item.book.date)
+      libraryBookSize.setTextAndVisibility(KiloByte(item.book.size).humanReadable)
+      libraryBookLanguage.text = bookUtils.getLanguage(item.book.getLanguage())
+      libraryBookFileName.text = NetworkUtils.parseURL(CoreApp.getInstance(), item.book.url)
+      libraryBookFavicon.setBitmap(Base64String(item.book.favicon))
 
       containerView.setOnClickListener { clickAction.invoke(item) }
       containerView.isClickable = item.canBeDownloaded
@@ -87,6 +95,20 @@ sealed class LibraryViewHolder<in T : LibraryListItem>(containerView: View) :
     }
   }
 
+  class DownloadViewHolder(view: View, private val clickAction: (LibraryDownloadItem) -> Unit) :
+    LibraryViewHolder<LibraryDownloadItem>(view) {
+
+    override fun bind(item: LibraryDownloadItem) {
+      libraryDownloadFavicon.setBitmap(item.favIcon)
+      libraryDownloadTitle.text = item.title
+      libraryDownloadDescription.text = item.description
+      downloadProgress.progress = item.progress
+      stop.setOnClickListener { clickAction.invoke(item) }
+      downloadState.text = item.downloadState.toReadableState(containerView.context)
+      eta.text = item.readableEta
+    }
+  }
+
   class LibraryDividerViewHolder(view: View) : LibraryViewHolder<DividerItem>(view) {
     override fun bind(item: DividerItem) {
       divider_text.text = item.text

app/src/main/res/layout/item_download.xml

@@ -11,7 +11,7 @@
   android:paddingRight="@dimen/activity_horizontal_margin">
 
   <ImageView
-    android:id="@+id/favicon"
+    android:id="@+id/libraryDownloadFavicon"
     android:layout_width="@dimen/favicon_width"
     android:layout_height="wrap_content"
     android:layout_gravity="center"
@@ -19,7 +19,8 @@
     android:adjustViewBounds="true"
     android:minHeight="?android:attr/listPreferredItemHeight"
     android:scaleType="fitCenter"
-    android:src="@mipmap/ic_launcher" />
+    android:src="@mipmap/ic_launcher"
+    tools:ignore="RtlHardcoded" />
 
   <LinearLayout
     android:layout_width="0dp"
@@ -29,7 +30,7 @@
     android:orientation="vertical">
 
     <TextView
-      android:id="@+id/title"
+      android:id="@+id/libraryDownloadTitle"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_gravity="start"
@@ -37,7 +38,7 @@
       tools:text="Title" />
 
     <TextView
-      android:id="@+id/description"
+      android:id="@+id/libraryDownloadDescription"
       style="@style/list_item_body"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"

app/src/main/res/layout/item_library.xml

@@ -10,7 +10,7 @@
   tools:ignore="Overdraw, RTLHardcoded">
 
   <ImageView
-    android:id="@+id/favicon"
+    android:id="@+id/libraryBookFavicon"
     android:layout_width="@dimen/favicon_width"
     android:layout_height="wrap_content"
     android:layout_marginLeft="@dimen/activity_horizontal_margin"
@@ -24,82 +24,82 @@
     tools:ignore="RtlHardcoded" />
 
   <TextView
-    android:id="@+id/title"
+    android:id="@+id/libraryBookTitle"
     style="@style/list_item_title"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_marginLeft="@dimen/favicon_margin_right"
     android:layout_marginTop="@dimen/activity_horizontal_margin"
-    app:layout_constraintStart_toEndOf="@+id/favicon"
+    app:layout_constraintStart_toEndOf="@+id/libraryBookFavicon"
     app:layout_constraintTop_toTopOf="parent"
     tools:text="Title" />
 
   <TextView
-    android:id="@+id/description"
+    android:id="@+id/libraryBookDescription"
     style="@style/list_item_body"
     android:layout_width="0dp"
     android:layout_height="wrap_content"
     android:layout_marginRight="@dimen/activity_horizontal_margin"
     app:layout_constraintEnd_toEndOf="parent"
-    app:layout_constraintStart_toStartOf="@+id/title"
-    app:layout_constraintTop_toBottomOf="@+id/title"
+    app:layout_constraintStart_toStartOf="@+id/libraryBookTitle"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookTitle"
     tools:text="Description a really really really really really really really really really really long descricption" />
 
   <TextView
-    android:id="@+id/size"
+    android:id="@+id/libraryBookSize"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    app:layout_constraintStart_toStartOf="@+id/description"
-    app:layout_constraintTop_toBottomOf="@+id/description"
+    app:layout_constraintStart_toStartOf="@+id/libraryBookDescription"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookDescription"
     tools:text="File Size" />
 
   <TextView
-    android:id="@+id/creator"
+    android:id="@+id/libraryBookCreator"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    app:layout_constraintStart_toStartOf="@+id/size"
-    app:layout_constraintTop_toBottomOf="@+id/size"
+    app:layout_constraintStart_toStartOf="@+id/libraryBookSize"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookSize"
     tools:text="Author" />
 
   <TextView
-    android:id="@+id/publisher"
+    android:id="@+id/libraryBookPublisher"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:paddingBottom="@dimen/activity_horizontal_margin"
-    app:layout_constraintStart_toStartOf="@+id/creator"
-    app:layout_constraintTop_toBottomOf="@+id/creator"
+    app:layout_constraintStart_toStartOf="@+id/libraryBookCreator"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookCreator"
     tools:text="Publisher" />
 
 
   <TextView
-    android:id="@+id/date"
+    android:id="@+id/libraryBookDate"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_marginRight="@dimen/activity_horizontal_margin"
     app:layout_constraintEnd_toEndOf="parent"
-    app:layout_constraintTop_toTopOf="@+id/size"
+    app:layout_constraintTop_toTopOf="@+id/libraryBookSize"
     tools:text="Date" />
 
   <TextView
-    android:id="@+id/language"
+    android:id="@+id/libraryBookLanguage"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    app:layout_constraintEnd_toEndOf="@+id/date"
-    app:layout_constraintTop_toBottomOf="@+id/date"
+    app:layout_constraintEnd_toEndOf="@+id/libraryBookDate"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookDate"
     tools:text="Language" />
 
   <TextView
-    android:id="@+id/fileName"
+    android:id="@+id/libraryBookFileName"
     style="@style/list_item_body"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    app:layout_constraintEnd_toEndOf="@+id/language"
-    app:layout_constraintTop_toBottomOf="@+id/language"
+    app:layout_constraintEnd_toEndOf="@+id/libraryBookLanguage"
+    app:layout_constraintTop_toBottomOf="@+id/libraryBookLanguage"
     tools:text="File Name" />
 
   <org.kiwix.kiwixmobile.core.zim_manager.TagsView
@@ -107,8 +107,8 @@
     android:layout_width="0dp"
     android:layout_height="wrap_content"
     app:layout_constraintEnd_toEndOf="parent"
-    app:layout_constraintStart_toStartOf="@+id/title"
-    app:layout_constraintTop_toBottomOf="@id/fileName" />
+    app:layout_constraintStart_toStartOf="@+id/libraryBookTitle"
+    app:layout_constraintTop_toBottomOf="@id/libraryBookFileName" />
 
 
   <View

app/src/main/res/layout/layout_download_management.xml

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-  xmlns:app="http://schemas.android.com/apk/res-auto"
-  xmlns:tools="http://schemas.android.com/tools"
-  android:id="@+id/zim_download_root"
-  android:layout_width="match_parent"
-  android:layout_height="match_parent"
-  android:animateLayoutChanges="true"
-  android:orientation="vertical">
-
-  <TextView
-    android:id="@+id/download_management_no_downloads"
-    style="@style/no_list_content_text"
-    android:text="@string/no_downloads_here"
-    tools:ignore="MissingConstraints" />
-
-  <androidx.recyclerview.widget.RecyclerView
-    android:id="@+id/zim_downloader_list"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    app:layout_behavior="@string/appbar_scrolling_view_behavior"
-    app:layout_constraintTop_toTopOf="parent" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

app/src/test/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModelTest.kt

@@ -56,7 +56,6 @@ import org.kiwix.kiwixmobile.zim_manager.library_view.adapter.LibraryListItem
 import org.kiwix.sharedFunctions.InstantExecutorExtension
 import org.kiwix.sharedFunctions.book
 import org.kiwix.sharedFunctions.bookOnDisk
-import org.kiwix.sharedFunctions.downloadItem
 import org.kiwix.sharedFunctions.downloadModel
 import org.kiwix.sharedFunctions.language
 import org.kiwix.sharedFunctions.libraryNetworkEntity
@@ -64,7 +63,6 @@ import org.kiwix.sharedFunctions.resetSchedulers
 import org.kiwix.sharedFunctions.setScheduler
 import java.util.Locale
 import java.util.concurrent.TimeUnit.MILLISECONDS
-import java.util.concurrent.TimeUnit.SECONDS
 
 @ExtendWith(InstantExecutorExtension::class)
 class ZimManageViewModelTest {
@@ -149,29 +147,6 @@ class ZimManageViewModelTest {
     }
   }
 
-  @Nested
-  inner class Downloads {
-    @Test
-    fun `on emission from database render downloads`() {
-      expectDownloads()
-      viewModel.downloadItems
-        .test()
-        .assertValue(listOf(downloadItem()))
-    }
-
-    private fun expectDownloads(
-      expectedDownloads: List<DownloadModel> = listOf(
-        downloadModel()
-      )
-    ) {
-      every { application.getString(any()) } returns ""
-      downloads.offer(expectedDownloads)
-      testScheduler.triggerActions()
-      testScheduler.advanceTimeBy(1, SECONDS)
-      testScheduler.triggerActions()
-    }
-  }
-
   @Nested
   inner class Books {
     @Test
@@ -344,7 +319,7 @@ class ZimManageViewModelTest {
   }
 
   @Test
-  fun `library update removes from sources`() {
+  fun `library update removes from sources and maps to list items`() {
     every { application.getString(R.string.your_languages) } returns "1"
     every { application.getString(R.string.other_languages) } returns "2"
     val bookAlreadyOnDisk = book(
@@ -394,7 +369,7 @@ class ZimManageViewModelTest {
           LibraryListItem.DividerItem(Long.MAX_VALUE, "1"),
           LibraryListItem.BookItem(bookWithActiveLanguage, CanWrite4GbFile),
           LibraryListItem.DividerItem(Long.MIN_VALUE, "2"),
-          LibraryListItem.BookItem(bookWithInactiveLanguage, CanWrite4GbFile)
+          LibraryListItem.LibraryDownloadItem(downloadModel(book = bookDownloading))
         )
       )
   }

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/DownloadRequester.kt

@@ -17,10 +17,9 @@
  */
 package org.kiwix.kiwixmobile.core.downloader
 
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
 import org.kiwix.kiwixmobile.core.downloader.model.DownloadRequest
 
 interface DownloadRequester {
   fun enqueue(downloadRequest: DownloadRequest): Long
-  fun cancel(downloadItem: DownloadItem)
+  fun cancel(downloadId: Long)
 }

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/Downloader.kt

@@ -18,9 +18,8 @@
 package org.kiwix.kiwixmobile.core.downloader
 
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
 
 interface Downloader {
   fun download(book: LibraryNetworkEntity.Book)
-  fun cancelDownload(downloadItem: DownloadItem)
+  fun cancelDownload(downloadId: Long)
 }

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/DownloaderImpl.kt

@@ -21,7 +21,6 @@ package org.kiwix.kiwixmobile.core.downloader
 import io.reactivex.Observable
 import org.kiwix.kiwixmobile.core.dao.FetchDownloadDao
 import org.kiwix.kiwixmobile.core.data.remote.KiwixService
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity.Book
 import javax.inject.Inject
@@ -47,7 +46,7 @@ class DownloaderImpl @Inject constructor(
     if (book.url.endsWith("meta4")) kiwixService.getMetaLinks(book.url).map { it.relevantUrl.value }
     else Observable.just(book.url)
 
-  override fun cancelDownload(downloadItem: DownloadItem) {
-    downloadRequester.cancel(downloadItem)
+  override fun cancelDownload(downloadId: Long) {
+    downloadRequester.cancel(downloadId)
   }
 }

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/fetch/FetchDownloadRequester.kt

@@ -22,7 +22,6 @@ import com.tonyodev.fetch2.NetworkType.ALL
 import com.tonyodev.fetch2.NetworkType.WIFI_ONLY
 import com.tonyodev.fetch2.Request
 import org.kiwix.kiwixmobile.core.downloader.DownloadRequester
-import org.kiwix.kiwixmobile.core.downloader.model.DownloadItem
 import org.kiwix.kiwixmobile.core.downloader.model.DownloadRequest
 import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 import javax.inject.Inject
@@ -38,8 +37,8 @@ class FetchDownloadRequester @Inject constructor(
     return request.id.toLong()
   }
 
-  override fun cancel(downloadItem: DownloadItem) {
-    fetch.delete(downloadItem.downloadId.toInt())
+  override fun cancel(downloadId: Long) {
+    fetch.delete(downloadId.toInt())
   }
 }