Implement multi device removal sheet

res/layout-sw400dp/activity_landing.xml

@@ -57,6 +57,7 @@
         android:layout_height="@dimen/onboarding_button_bottom_offset"
         android:layout_marginLeft="@dimen/massive_spacing"
         android:layout_marginRight="@dimen/massive_spacing"
+        android:visibility="invisible"
         android:gravity="center"
         android:background="@color/transparent"
         android:textAllCaps="false"

res/layout/activity_landing.xml

@@ -57,6 +57,7 @@
         android:layout_height="@dimen/onboarding_button_bottom_offset"
         android:layout_marginLeft="@dimen/massive_spacing"
         android:layout_marginRight="@dimen/massive_spacing"
+        android:visibility="invisible"
         android:gravity="center"
         android:background="@color/transparent"
         android:textAllCaps="false"

res/layout/fragment_multi_device_removal_bottom_sheet.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:gravity="center_horizontal"
+    android:paddingLeft="@dimen/very_large_spacing"
+    android:paddingTop="@dimen/large_spacing"
+    android:paddingRight="@dimen/very_large_spacing"
+    android:paddingBottom="@dimen/very_large_spacing"
+    app:behavior_hideable="true"
+    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
+    android:background="@drawable/default_bottom_sheet_background_inset">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Changes to Multi-Device"
+        android:textColor="@color/text"
+        android:textStyle="bold"
+        android:textSize="@dimen/large_font_size" />
+
+    <TextView
+        android:id="@+id/explanationTextView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/large_spacing"
+        android:text="You’re seeing this because you have a secondary device linked to your Session ID. To improve reliability and stability, we’ve decided to temporarily disable Session’s multi-device functionality. Device linking has been disabled, and existing secondary clients will be erased on %s.\n\nTo read more about this change, visit the Session FAQ at getsession.org/faq"
+        android:textColor="@color/text"
+        android:textSize="@dimen/small_font_size" />
+
+    <Button
+        style="@style/MediumProminentOutlineButton"
+        android:id="@+id/okButton"
+        android:layout_width="240dp"
+        android:layout_height="@dimen/medium_button_height"
+        android:layout_marginTop="@dimen/large_spacing"
+        android:text="@string/ok" />
+
+</LinearLayout>

src/org/thoughtcrime/securesms/loki/activities/HomeActivity.kt

@@ -7,6 +7,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.database.Cursor
+import android.net.Uri
 import android.os.AsyncTask
 import android.os.Bundle
 import android.os.Handler
@@ -30,7 +31,9 @@ import org.thoughtcrime.securesms.database.DatabaseFactory
 import org.thoughtcrime.securesms.database.ThreadDatabase
 import org.thoughtcrime.securesms.database.model.ThreadRecord
 import org.thoughtcrime.securesms.jobs.MultiDeviceBlockedUpdateJob
+import org.thoughtcrime.securesms.loki.database.LokiAPIDatabase
 import org.thoughtcrime.securesms.loki.dialogs.ConversationOptionsBottomSheet
+import org.thoughtcrime.securesms.loki.dialogs.MultiDeviceRemovalBottomSheet
 import org.thoughtcrime.securesms.loki.protocol.ClosedGroupsProtocol
 import org.thoughtcrime.securesms.loki.protocol.SessionResetImplementation
 import org.thoughtcrime.securesms.loki.utilities.*
@@ -189,6 +192,25 @@ class HomeActivity : PassphraseRequiredActionBarActivity, ConversationClickListe
         if (hasViewedSeed || !isMasterDevice) {
             seedReminderView.visibility = View.GONE
         }
+        val hasSeenMultiDeviceRemovalSheet = TextSecurePreferences.getHasSeenMultiDeviceRemovalSheet(this)
+        if (!hasSeenMultiDeviceRemovalSheet) {
+            TextSecurePreferences.setHasSeenMultiDeviceRemovalSheet(this)
+            val userPublicKey = TextSecurePreferences.getLocalNumber(this)
+            val deviceLinks = DatabaseFactory.getLokiAPIDatabase(this).getDeviceLinks(userPublicKey)
+            if (deviceLinks.isNotEmpty()) {
+                val bottomSheet = MultiDeviceRemovalBottomSheet()
+                bottomSheet.onOKTapped = {
+                    bottomSheet.dismiss()
+                }
+                bottomSheet.onLinkTapped = {
+                    bottomSheet.dismiss()
+                    val url = "https://getsession.org/faq"
+                    val intent = Intent(Intent.ACTION_VIEW, Uri.parse(url))
+                    startActivity(intent)
+                }
+                bottomSheet.show(supportFragmentManager, bottomSheet.tag)
+            }
+        }
     }
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {

src/org/thoughtcrime/securesms/loki/activities/LandingActivity.kt

@@ -44,7 +44,7 @@ class LandingActivity : BaseActionBarActivity(), LinkDeviceSlaveModeDialogDelega
         fakeChatView.startAnimating()
         registerButton.setOnClickListener { register() }
         restoreButton.setOnClickListener { restore() }
-        linkButton.setOnClickListener { linkDevice() }
+//        linkButton.setOnClickListener { linkDevice() }
         if (TextSecurePreferences.getWasUnlinked(this)) {
             Toast.makeText(this, R.string.activity_landing_device_unlinked_dialog_title, Toast.LENGTH_LONG).show()
         }

src/org/thoughtcrime/securesms/loki/activities/PNModeActivity.kt

@@ -115,7 +115,7 @@ class PNModeActivity : BaseActionBarActivity() {
         TextSecurePreferences.setHasSeenWelcomeScreen(this, true)
         TextSecurePreferences.setPromptedPushRegistration(this, true)
         TextSecurePreferences.setIsUsingFCM(this, (selectedOptionView == fcmOptionView))
-        TextSecurePreferences.setHasSeenPNModeSheet(this, true) // Shouldn't be shown to users who've done the new onboarding
+        TextSecurePreferences.setHasSeenMultiDeviceRemovalSheet(this)
         val application = ApplicationContext.getInstance(this)
         application.setUpStorageAPIIfNeeded()
         application.setUpP2PAPIIfNeeded()

src/org/thoughtcrime/securesms/loki/activities/SettingsActivity.kt

@@ -83,16 +83,16 @@ class SettingsActivity : PassphraseRequiredActionBarActivity() {
         copyButton.setOnClickListener { copyPublicKey() }
         shareButton.setOnClickListener { sharePublicKey() }
         val isMasterDevice = (TextSecurePreferences.getMasterHexEncodedPublicKey(this) == null)
+        linkedDevicesButtonTopSeparator.visibility = View.GONE
+        linkedDevicesButton.visibility = View.GONE
         if (!isMasterDevice) {
-            linkedDevicesButtonTopSeparator.visibility = View.GONE
-            linkedDevicesButton.visibility = View.GONE
             seedButtonTopSeparator.visibility = View.GONE
             seedButton.visibility = View.GONE
         }
         privacyButton.setOnClickListener { showPrivacySettings() }
         notificationsButton.setOnClickListener { showNotificationSettings() }
         chatsButton.setOnClickListener { showChatSettings() }
-        linkedDevicesButton.setOnClickListener { showLinkedDevices() }
+//        linkedDevicesButton.setOnClickListener { showLinkedDevices() }
         seedButton.setOnClickListener { showSeed() }
         clearAllDataButton.setOnClickListener { clearAllData() }
         versionTextView.text = String.format(getString(R.string.version_s), BuildConfig.VERSION_NAME)

src/org/thoughtcrime/securesms/loki/dialogs/MultiDeviceRemovalBottomSheet.kt

@@ -0,0 +1,86 @@
+package org.thoughtcrime.securesms.loki.dialogs
+
+import android.graphics.Typeface
+import android.os.Bundle
+import android.support.design.widget.BottomSheetDialogFragment
+import android.text.Spannable
+import android.text.SpannableStringBuilder
+import android.text.method.LinkMovementMethod
+import android.text.style.ClickableSpan
+import android.text.style.ForegroundColorSpan
+import android.text.style.StyleSpan
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import kotlinx.android.synthetic.main.fragment_multi_device_removal_bottom_sheet.*
+import network.loki.messenger.R
+import org.thoughtcrime.securesms.loki.utilities.getColorWithID
+import org.thoughtcrime.securesms.util.TextSecurePreferences
+import java.text.SimpleDateFormat
+import java.util.*
+
+class MultiDeviceRemovalBottomSheet : BottomSheetDialogFragment() {
+    var onOKTapped: (() -> Unit)? = null
+    var onLinkTapped: (() -> Unit)? = null
+
+    private val removalDate by lazy {
+        val timeZone = TimeZone.getTimeZone("Australia/Melbourne")
+        val calendar = GregorianCalendar.getInstance(timeZone)
+        calendar.set(2020, 8 - 1, 6, 17, 0, 0)
+        calendar.time
+    }
+
+    private val removalDateDescription by lazy {
+        val formatter = SimpleDateFormat("MMMM d", Locale.getDefault())
+        formatter.format(removalDate)
+    }
+
+    private val explanation by lazy {
+        if (TextSecurePreferences.getMasterHexEncodedPublicKey(context!!) != null) {
+            "You’re seeing this because this is a secondary device in a multi-device setup. To improve reliability and stability, we’ve decided to temporarily disable Session’s multi-device functionality. Device linking has been disabled, and existing secondary clients will be erased on $removalDateDescription.\n\nTo read more about this change, visit the Session FAQ at getsession.org/faq."
+        } else {
+            "You’re seeing this because you have a secondary device linked to your Session ID. To improve reliability and stability, we’ve decided to temporarily disable Session’s multi-device functionality. Device linking has been disabled, and existing secondary clients will be erased on $removalDateDescription.\n\nTo read more about this change, visit the Session FAQ at getsession.org/faq"
+        }
+    }
+
+    private val decoratedExplanation by lazy {
+        val result = SpannableStringBuilder(explanation)
+        val removalDateStartIndex = explanation.indexOf(removalDateDescription)
+        val removalDateEndIndex = removalDateStartIndex + removalDateDescription.count()
+        result.setSpan(StyleSpan(Typeface.BOLD), removalDateStartIndex, removalDateEndIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
+        result.setSpan(ForegroundColorSpan(resources.getColorWithID(R.color.accent, context!!.theme)), removalDateStartIndex, removalDateEndIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
+        val link = "getsession.org/faq"
+        val linkStartIndex = explanation.indexOf(link)
+        val linkEndIndex = linkStartIndex + link.count()
+        result.setSpan(object : ClickableSpan() {
+
+            override fun onClick(widget: View) {
+                try {
+                    onLinkTapped?.invoke()
+                } catch (e: Exception) {
+                    Toast.makeText(context!!, R.string.invalid_url, Toast.LENGTH_SHORT).show()
+                }
+            }
+        }, linkStartIndex, linkEndIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
+        result.setSpan(StyleSpan(Typeface.BOLD), linkStartIndex, linkEndIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
+        result.setSpan(ForegroundColorSpan(resources.getColorWithID(R.color.accent, context!!.theme)), linkStartIndex, linkEndIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
+        result
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setStyle(STYLE_NORMAL, R.style.SessionBottomSheetDialogTheme)
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_multi_device_removal_bottom_sheet, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        explanationTextView.movementMethod = LinkMovementMethod.getInstance()
+        explanationTextView.text = decoratedExplanation
+        okButton.setOnClickListener { onOKTapped?.invoke() }
+    }
+}

src/org/thoughtcrime/securesms/util/TextSecurePreferences.java

@@ -214,14 +214,6 @@ public class TextSecurePreferences {
   public static void setLastFCMUploadTime(Context context, long value) {
     setLongPreference(context, LAST_FCM_TOKEN_UPLOAD_TIME, value);
   }
-
-  public static boolean hasSeenPNModeSheet(Context context) {
-    return getBooleanPreference(context, HAS_SEEN_PN_MODE_SHEET, false);
-  }
-
-  public static void setHasSeenPNModeSheet(Context context, boolean value) {
-    setBooleanPreference(context, HAS_SEEN_PN_MODE_SHEET, value);
-  }
   // endregion
 
   public static boolean isScreenLockEnabled(@NonNull Context context) {
@@ -1316,5 +1308,13 @@ public class TextSecurePreferences {
   public static void clearAll(Context context) {
     PreferenceManager.getDefaultSharedPreferences(context).edit().clear().commit();
   }
+
+  public static boolean getHasSeenMultiDeviceRemovalSheet(Context context) {
+    return getBooleanPreference(context, "has_seen_multi_device_removal_sheet", false);
+  }
+
+  public static void setHasSeenMultiDeviceRemovalSheet(Context context) {
+    setBooleanPreference(context, "has_seen_multi_device_removal_sheet", true);
+  }
   // endregion
 }