Update README.md

* Correct Home Activity Test to prevent crashing

* Fix broken tests

* Fix tests

CHANGELOG.md

@@ -44,8 +44,12 @@
 
 - Closing #236. New sources can be added in Selfoss 2.19.
 
+- Closing #397 and #355. Tag and Sources filters are now exclusive.
+
 - Dropped support for android 4, the last version supporting it is v1721030811
 
+- Added ability to scroll articles up and down using the volume keys #400
+
 **1.6.x**
 
 - Handling hidden tags.

README.md

@@ -1,47 +1 @@
-# ReaderForSelfoss **(Only available from F-Droid)**
-
-[![Crowdin](https://d322cqt584bo4o.cloudfront.net/readerforselfoss/localized.svg)](https://crowdin.com/project/readerforselfoss)
-
-It's an RSS Reader for Android, that **only** works with [Selfoss](https://selfoss.aditu.de/)
-
-**The project is not dead at all.** 
-
-I still want to work on it, but for the last few months, I didn't have that much time to do so. 
-
-If you are a developer, don't hesitate to help with PRs.
-
-If you are a user, you can still create new issues. I'll fix them when I can.
-
-<a href="https://f-droid.org/packages/apps.amine.bou.readerforselfoss"><img src="https://f-droid.org/badge/get-it-on.png" alt="Get it on F-Droid" height="100"></a>
-
-## Screen captures
-
-<img src="res//fr-card.png?raw=true" alt="card view" width="400"/> <img src="res//fr-list.png?raw=true" alt="list view" width="400"/>
-
-## Like my app ?
-
-<a href="https://www.buymeacoffee.com/aminecmi" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/lato-orange.png" alt="Buy Me A Coffee" style="height: 51px !important;width: 217px !important;" ></a>
-
-## Want to help ?
-
-1. **You'll have to have a Selfoss instance running.** You'll find everything you need to install it [here](https://selfoss.aditu.de/).
-
-2. Check the [Contribution guide](https://github.com/aminecmi/ReaderforSelfoss/blob/master/.github/CONTRIBUTING.md).
-
-3. Build the project by following [these steps](https://github.com/aminecmi/ReaderforSelfoss/blob/master/.github/CONTRIBUTING.md#build-the-project) (you should have read them after the contribution guide)
-
-## Useful links
-
-- [Check what changed](https://github.com/aminecmi/ReaderforSelfoss/blob/master/CHANGELOG.md)
-- [See what I'm doing](https://github.com/aminecmi/ReaderforSelfoss/projects/1)
-- [Create an issue, or request a new feature](https://github.com/aminecmi/ReaderforSelfoss/issues)
-- [Help translation the app](https://crowdin.com/project/readerforselfoss)
-
-## Contributors (Alphabetical order) ❤️
-
-- [@aancel](https://github.com/aancel)
-- [@Binnette](https://github.com/Binnette)
-- [@davidoskky](https://github.com/davidoskky)
-- [@hectorgabucio](https://github.com/hectorgabucio)
-- [@licaon-kter](https://github.com/licaon-kter)
-- [@sergey-babkin](https://github.com/sergey-babkin)
+# Project moved to https://github.com/aminecmi/ReaderforSelfoss-multiplatform

app/src/androidTest/java/apps/amine/bou/readerforselfoss/HomeActivityEspressoTest.kt

@@ -7,23 +7,20 @@ import androidx.test.espresso.Espresso.onView
 import androidx.test.espresso.Espresso.openActionBarOverflowOrOptionsMenu
 import androidx.test.espresso.action.ViewActions.click
 import androidx.test.espresso.action.ViewActions.closeSoftKeyboard
-import androidx.test.espresso.action.ViewActions.pressBack
 import androidx.test.espresso.action.ViewActions.pressKey
 import androidx.test.espresso.action.ViewActions.typeText
 import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.contrib.DrawerActions
 import androidx.test.espresso.intent.Intents
 import androidx.test.espresso.intent.Intents.intended
-import androidx.test.espresso.intent.Intents.times
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasComponent
 import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
-import androidx.test.espresso.matcher.ViewMatchers.isRoot
 import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
 import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.rule.ActivityTestRule
 import androidx.test.runner.AndroidJUnit4
 import android.view.KeyEvent
+import androidx.test.espresso.matcher.RootMatchers.isDialog
 import apps.amine.bou.readerforselfoss.utils.Config
 import org.junit.After
 import org.junit.Before
@@ -84,11 +81,14 @@ class HomeActivityEspressoTest {
         onView(withMenu(id = R.id.refresh, titleId = R.string.menu_home_refresh))
                 .perform(click())
 
+        onView(withText(android.R.string.ok))
+            .inRoot(isDialog()).check(matches(isDisplayed())).perform(click())
+
         openActionBarOverflowOrOptionsMenu(context)
 
         onView(withText(R.string.action_disconnect)).perform(click())
 
-        intended(hasComponent(LoginActivity::class.java.name), times(1))
+        intended(hasComponent(LoginActivity::class.java.name))
     }
 
     // TODO: test articles opening and actions for cards and lists

app/src/androidTest/java/apps/amine/bou/readerforselfoss/LoginActivityEspressoTest.kt

@@ -85,7 +85,7 @@ class LoginActivityEspressoTest {
 
         onView(withId(R.id.signInButton)).perform(click())
 
-        onView(withId(R.id.urlLayout)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.urlView)).check(matches(isHintOrErrorEnabled()))
     }
 
     // TODO: Add tests for multiple false urls with dialog
@@ -101,19 +101,19 @@ class LoginActivityEspressoTest {
 
         onView(withId(R.id.signInButton)).perform(click())
 
-        onView(withId(R.id.loginLayout)).check(matches(isHintOrErrorEnabled()))
-        onView(withId(R.id.passwordLayout)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.loginView)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.passwordView)).check(matches(isHintOrErrorEnabled()))
 
         onView(withId(R.id.loginView)).perform(click()).perform(
                 typeText(username),
                 closeSoftKeyboard()
         )
 
-        onView(withId(R.id.passwordLayout)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.passwordView)).check(matches(isHintOrErrorEnabled()))
 
         onView(withId(R.id.signInButton)).perform(click())
 
-        onView(withId(R.id.passwordLayout)).check(
+        onView(withId(R.id.passwordView)).check(
                 matches(
                         isHintOrErrorEnabled()
                 )
@@ -141,9 +141,9 @@ class LoginActivityEspressoTest {
 
         onView(withId(R.id.signInButton)).perform(click())
 
-        onView(withId(R.id.urlLayout)).check(matches(isHintOrErrorEnabled()))
-        onView(withId(R.id.loginLayout)).check(matches(isHintOrErrorEnabled()))
-        onView(withId(R.id.passwordLayout)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.urlView)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.loginView)).check(matches(isHintOrErrorEnabled()))
+        onView(withId(R.id.passwordView)).check(matches(isHintOrErrorEnabled()))
     }
 
     @Test
@@ -167,6 +167,7 @@ class LoginActivityEspressoTest {
 
         onView(withId(R.id.signInButton)).perform(click())
 
+        Thread.sleep(2000)
         intended(hasComponent(HomeActivity::class.java.name))
     }
 

app/src/androidTest/java/apps/amine/bou/readerforselfoss/MainActivityEspressoTest.kt

@@ -1,5 +1,6 @@
 package apps.amine.bou.readerforselfoss
 
+import android.content.Context
 import android.content.Intent
 import android.content.SharedPreferences
 import android.preference.PreferenceManager
@@ -10,6 +11,7 @@ import androidx.test.espresso.intent.Intents.times
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasComponent
 import androidx.test.rule.ActivityTestRule
 import androidx.test.runner.AndroidJUnit4
+import apps.amine.bou.readerforselfoss.utils.Config
 import org.junit.After
 
 import org.junit.Before
@@ -22,6 +24,9 @@ class MainActivityEspressoTest {
 
     lateinit var intent: Intent
     lateinit var preferencesEditor: SharedPreferences.Editor
+    private lateinit var url: String
+    private lateinit var username: String
+    private lateinit var password: String
 
     @Rule @JvmField
     val rule = ActivityTestRule(MainActivity::class.java, true, false)
@@ -32,31 +37,39 @@ class MainActivityEspressoTest {
         val context = getInstrumentation().targetContext
 
         // create a SharedPreferences editor
-        preferencesEditor = PreferenceManager.getDefaultSharedPreferences(context).edit()
+        preferencesEditor = context.getSharedPreferences(Config.settingsName, Context.MODE_PRIVATE).edit()
+
+        url = BuildConfig.LOGIN_URL
+        username = BuildConfig.LOGIN_USERNAME
+        password = BuildConfig.LOGIN_PASSWORD
 
         Intents.init()
     }
 
     @Test
     fun checkFirstOpenLaunchesIntro() {
-        preferencesEditor.putBoolean("firstStart", true)
+        preferencesEditor.putString("url", "")
+        preferencesEditor.putString("password", "")
+        preferencesEditor.putString("login", "")
         preferencesEditor.commit()
 
         rule.launchActivity(intent)
 
-        intended(hasComponent(MainActivity::class.java.name))
-        intended(hasComponent(LoginActivity::class.java.name), times(0))
+        intended(hasComponent(LoginActivity::class.java.name))
+        intended(hasComponent(HomeActivity::class.java.name), times(0))
     }
 
     @Test
     fun checkNotFirstOpenLaunchesLogin() {
-        preferencesEditor.putBoolean("firstStart", false)
+        preferencesEditor.putString("url", url)
+        preferencesEditor.putString("password", password)
+        preferencesEditor.putString("login", username)
         preferencesEditor.commit()
 
         rule.launchActivity(intent)
 
         intended(hasComponent(MainActivity::class.java.name))
-        intended(hasComponent(LoginActivity::class.java.name))
+        intended(hasComponent(HomeActivity::class.java.name))
     }
 
     @After

app/src/androidTest/java/apps/amine/bou/readerforselfoss/Utils.kt

@@ -1,8 +1,8 @@
 package apps.amine.bou.readerforselfoss
 
-import com.google.android.material.textfield.TextInputLayout
 import androidx.test.espresso.matcher.ViewMatchers
 import android.view.View
+import android.widget.EditText
 import org.hamcrest.Description
 import org.hamcrest.Matcher
 import org.hamcrest.Matchers
@@ -14,11 +14,11 @@ fun isHintOrErrorEnabled(): Matcher<View> =
             }
 
             override fun matchesSafely(item: View?): Boolean {
-                if (item !is TextInputLayout) {
+                if (item !is EditText) {
                     return false
                 }
 
-                return item.isHintEnabled || item.isErrorEnabled
+                return item.error.isNotEmpty()
             }
         }
 

app/src/androidTest/java/apps/amine/bou/readerforselfoss/utils/DateUtilsTest.kt

@@ -1,7 +1,5 @@
-package apps.amine.bou.readerforselfoss
+package apps.amine.bou.readerforselfoss.utils
 
-import apps.amine.bou.readerforselfoss.utils.Config
-import apps.amine.bou.readerforselfoss.utils.parseDate
 import org.junit.Test
 
 class DateUtilsTest {

app/src/main/java/apps/amine/bou/readerforselfoss/HomeActivity.kt

@@ -18,7 +18,6 @@ import androidx.appcompat.app.ActionBarDrawerToggle
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.SearchView
-import androidx.core.view.MenuItemCompat
 import androidx.core.view.doOnNextLayout
 import androidx.drawerlayout.widget.DrawerLayout
 import androidx.recyclerview.widget.*
@@ -101,9 +100,6 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     private var fullHeightCards: Boolean = false
     private var itemsNumber: Int = 200
     private var elementsShown: Int = 1
-    private var maybeTagFilter: Tag? = null
-    private var maybeSourceFilter: Source? = null
-    private var maybeSearchFilter: String? = null
     private var userIdentifier: String = ""
     private var displayAccountHeader: Boolean = false
     private var infiniteScroll: Boolean = false
@@ -220,7 +216,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
             lastFetchDone = false
             handleDrawerItems()
             CoroutineScope(Dispatchers.Main).launch {
-                refreshFocusedItems(applicationContext, api, db)
+                refreshFocusedItems(applicationContext, api, db, itemsNumber)
                 getElementsAccordingToTab()
                 binding.swipeRefreshLayout.isRefreshing = false
             }
@@ -251,7 +247,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                 ): Boolean = false
 
                 override fun onSwiped(viewHolder: RecyclerView.ViewHolder, swipeDir: Int) {
-                    val position = viewHolder.adapterPosition
+                    val position = viewHolder.bindingAdapterPosition
                     val i = items.elementAtOrNull(position)
 
                     if (i != null) {
@@ -563,8 +559,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                                         color = ColorHolder.fromColor(appColors.colorAccent) }
                                     onDrawerItemClickListener = { _,_,_ ->
                                         allItems = ArrayList()
-                                        maybeTagFilter = it
                                         SharedItems.tagFilter = it.tag
+                                        SharedItems.sourceFilter = null
+                                        SharedItems.sourceIDFilter = null
                                         getElementsAccordingToTab()
                                         fetchOnEmptyList()
                                         false
@@ -615,8 +612,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                                     color = ColorHolder.fromColor(appColors.colorAccent) }
                                 onDrawerItemClickListener = { _,_,_ ->
                                     allItems = ArrayList()
-                                    maybeTagFilter = it
                                     SharedItems.tagFilter = it.tag
+                                    SharedItems.sourceFilter = null
+                                    SharedItems.sourceIDFilter = null
                                     getElementsAccordingToTab()
                                     fetchOnEmptyList()
                                     false
@@ -650,9 +648,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                             iconUrl = source.getIcon(this@HomeActivity)
                             onDrawerItemClickListener = { _,_,_ ->
                                 allItems = ArrayList()
-                                maybeSourceFilter = source
                                 SharedItems.sourceIDFilter = source.id.toLong()
                                 SharedItems.sourceFilter = source.title
+                                SharedItems.tagFilter = null
                                 getElementsAccordingToTab()
                                 fetchOnEmptyList()
                                 false
@@ -673,11 +671,10 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                         badgeRes = R.string.drawer_action_clear
                         onDrawerItemClickListener = { _,_,_ ->
                             allItems = ArrayList()
-                            maybeSourceFilter = null
                             SharedItems.sourceFilter = null
                             SharedItems.sourceIDFilter = null
-                            maybeTagFilter = null
                             SharedItems.tagFilter = null
+                            binding.mainDrawer.setSelectionAtPosition(-1)
                             getElementsAccordingToTab()
                             fetchOnEmptyList()
                             false
@@ -984,7 +981,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
         CoroutineScope(Dispatchers.Main).launch {
             if (appendResults || !SharedItems.fetchedUnread) {
                 binding.swipeRefreshLayout.isRefreshing = true
-                getUnreadItems(applicationContext, api, db, offset)
+                getUnreadItems(applicationContext, api, db, itemsNumber, offset)
                 binding.swipeRefreshLayout.isRefreshing = false
             }
             SharedItems.getUnRead()
@@ -997,7 +994,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
         CoroutineScope(Dispatchers.Main).launch {
             if (appendResults || !SharedItems.fetchedAll) {
                 binding.swipeRefreshLayout.isRefreshing = true
-                getReadItems(applicationContext, api, db, offset)
+                getReadItems(applicationContext, api, db, itemsNumber, offset)
                 binding.swipeRefreshLayout.isRefreshing = false
             }
             SharedItems.getAll()
@@ -1010,7 +1007,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
         CoroutineScope(Dispatchers.Main).launch {
             if (appendResults || !SharedItems.fetchedStarred) {
                 binding.swipeRefreshLayout.isRefreshing = true
-                getStarredItems(applicationContext, api, db, offset)
+                getStarredItems(applicationContext, api, db, itemsNumber, offset)
                 binding.swipeRefreshLayout.isRefreshing = false
             }
             SharedItems.getStarred()
@@ -1122,7 +1119,6 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
 
     override fun onQueryTextChange(p0: String?): Boolean {
         if (p0.isNullOrBlank()) {
-            maybeSearchFilter = null
             SharedItems.searchFilter = null
             getElementsAccordingToTab()
             fetchOnEmptyList()
@@ -1131,29 +1127,18 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     }
 
     override fun onQueryTextSubmit(p0: String?): Boolean {
-        maybeSearchFilter = p0
         SharedItems.searchFilter = p0
         getElementsAccordingToTab()
         fetchOnEmptyList()
         return false
     }
 
-    override fun onActivityResult(req: Int, result: Int, data: Intent?) {
-        when (req) {
-            MENU_PREFERENCES -> {
-                //drawer.closeDrawer()
-                recreate()
-            }
-            else -> super.onActivityResult(req, result, data)
-        }
-    }
-
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         val inflater = menuInflater
         inflater.inflate(R.menu.home_menu, menu)
 
         val searchItem = menu.findItem(R.id.action_search)
-        val searchView = MenuItemCompat.getActionView(searchItem) as SearchView
+        val searchView = searchItem.getActionView() as SearchView
         searchView.setOnQueryTextListener(this)
 
         return true
@@ -1268,8 +1253,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                     .addTag("selfoss-loading")
                     .build()
 
-
-            WorkManager.getInstance().enqueueUniquePeriodicWork("selfoss-loading", ExistingPeriodicWorkPolicy.KEEP, backgroundWork)
+            WorkManager.getInstance(baseContext).enqueueUniquePeriodicWork("selfoss-loading", ExistingPeriodicWorkPolicy.KEEP, backgroundWork)
         }
     }
 

app/src/main/java/apps/amine/bou/readerforselfoss/ReaderActivity.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import android.content.SharedPreferences
 import android.graphics.Color
 import android.os.Bundle
+import android.view.KeyEvent
 import androidx.preference.PreferenceManager
 import androidx.appcompat.app.AppCompatActivity
 import android.view.Menu
@@ -135,13 +136,30 @@ class ReaderActivity : AppCompatActivity() {
     private inner class ScreenSlidePagerAdapter(fa: FragmentActivity) :
         FragmentStateAdapter(fa) {
 
-
         override fun getItemCount(): Int = allItems.size
 
         override fun createFragment(position: Int): Fragment = ArticleFragment.newInstance(allItems[position])
 
     }
 
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        return when (keyCode) {
+            KeyEvent.KEYCODE_VOLUME_DOWN -> {
+                val currentFragment = supportFragmentManager.findFragmentByTag("f" + binding.pager.currentItem) as ArticleFragment
+                currentFragment.scrollDown()
+                true
+            }
+            KeyEvent.KEYCODE_VOLUME_UP -> {
+                val currentFragment = supportFragmentManager.findFragmentByTag("f" + binding.pager.currentItem) as ArticleFragment
+                currentFragment.scrollUp()
+                true
+            }
+            else -> {
+                super.onKeyDown(keyCode, event)
+            }
+        }
+    }
+
     private fun alignmentMenu(showJustify: Boolean) {
         toolbarMenu.findItem(R.id.align_left).isVisible = !showJustify
         toolbarMenu.findItem(R.id.align_justify).isVisible = showJustify

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossFetching.kt

@@ -39,13 +39,13 @@ suspend fun updateItems(context: Context, api: SelfossApi, db: AppDatabase) = co
     }
 }
 
-suspend fun refreshFocusedItems(context: Context, api: SelfossApi, db: AppDatabase) = withContext(Dispatchers.IO) {
+suspend fun refreshFocusedItems(context: Context, api: SelfossApi, db: AppDatabase, itemsNumber: Int) = withContext(Dispatchers.IO) {
     if (isNetworkAvailable(context)) {
         val response = when (SharedItems.displayedItems) {
-            "read" -> api.readItems(200, 0)
-            "unread" -> api.newItems(200, 0)
-            "starred" -> api.starredItems(200, 0)
-            else -> api.readItems(200, 0)
+            "read" -> api.readItems(itemsNumber, 0)
+            "unread" -> api.newItems(itemsNumber, 0)
+            "starred" -> api.starredItems(itemsNumber, 0)
+            else -> api.readItems(itemsNumber, 0)
         }
 
         if (response.isSuccessful) {
@@ -55,33 +55,33 @@ suspend fun refreshFocusedItems(context: Context, api: SelfossApi, db: AppDataba
     }
 }
 
-suspend fun getReadItems(context: Context, api: SelfossApi, db: AppDatabase, offset: Int) = withContext(Dispatchers.IO) {
+suspend fun getReadItems(context: Context, api: SelfossApi, db: AppDatabase, itemsNumber: Int, offset: Int) = withContext(Dispatchers.IO) {
     if (isNetworkAvailable(context)) {
             try {
-                enqueueArticles(api.readItems( 200, offset), db, false)
+                enqueueArticles(api.readItems( itemsNumber, offset), db, false)
                 SharedItems.fetchedAll = true
                 SharedItems.updateDatabase(db)
             } catch (e: Throwable) {}
     }
 }
 
-suspend fun getUnreadItems(context: Context, api: SelfossApi, db: AppDatabase, offset: Int) = withContext(Dispatchers.IO) {
+suspend fun getUnreadItems(context: Context, api: SelfossApi, db: AppDatabase, itemsNumber: Int, offset: Int) = withContext(Dispatchers.IO) {
     if (isNetworkAvailable(context)) {
         try {
             if (!SharedItems.fetchedUnread) {
                 SharedItems.clearDBItems(db)
             }
-            enqueueArticles(api.newItems(200, offset), db, false)
+            enqueueArticles(api.newItems(itemsNumber, offset), db, false)
             SharedItems.fetchedUnread = true
         } catch (e: Throwable) {}
     }
     SharedItems.updateDatabase(db)
 }
 
-suspend fun getStarredItems(context: Context, api: SelfossApi, db: AppDatabase, offset: Int) = withContext(Dispatchers.IO) {
+suspend fun getStarredItems(context: Context, api: SelfossApi, db: AppDatabase, itemsNumber: Int, offset: Int) = withContext(Dispatchers.IO) {
     if (isNetworkAvailable(context)) {
         try {
-            enqueueArticles(api.starredItems(200, offset), db, false)
+            enqueueArticles(api.starredItems(itemsNumber, offset), db, false)
             SharedItems.fetchedStarred = true
             SharedItems.updateDatabase(db)
         } catch (e: Throwable) {

app/src/main/java/apps/amine/bou/readerforselfoss/fragments/ArticleFragment.kt

@@ -511,6 +511,16 @@ class ArticleFragment : Fragment() {
         )
     }
 
+    fun scrollDown() {
+        val height = binding.nestedScrollView.measuredHeight
+        binding.nestedScrollView.smoothScrollBy(0, height/2)
+    }
+
+    fun scrollUp() {
+        val height = binding.nestedScrollView.measuredHeight
+        binding.nestedScrollView.smoothScrollBy(0, -height/2)
+    }
+
     private fun openInBrowserAfterFailing(customTabsIntent: CustomTabsIntent) {
         binding.progressBar.visibility = View.GONE
         requireActivity().openItemUrlInternalBrowser(