Hook up link preview suggestion dialog

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt

@@ -82,6 +82,7 @@ import org.thoughtcrime.securesms.database.model.MessageRecord
 import org.thoughtcrime.securesms.database.model.MmsMessageRecord
 import org.thoughtcrime.securesms.giph.ui.GiphyActivity
 import org.thoughtcrime.securesms.linkpreview.LinkPreviewRepository
+import org.thoughtcrime.securesms.linkpreview.LinkPreviewUtil
 import org.thoughtcrime.securesms.linkpreview.LinkPreviewViewModel
 import org.thoughtcrime.securesms.linkpreview.LinkPreviewViewModel.LinkPreviewState
 import org.thoughtcrime.securesms.loki.utilities.ActivityDispatcher
@@ -98,6 +99,7 @@ import org.thoughtcrime.securesms.permissions.Permissions
 import org.thoughtcrime.securesms.util.DateUtils
 import org.thoughtcrime.securesms.util.MediaUtil
 import org.thoughtcrime.securesms.util.SaveAttachmentTask
+import org.w3c.dom.Text
 import java.util.*
 import java.util.concurrent.ExecutionException
 import kotlin.math.*
@@ -402,8 +404,19 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
     }
 
     override fun inputBarEditTextContentChanged(newContent: CharSequence) {
-        linkPreviewViewModel?.onTextChanged(this, inputBar.text, 0, 0)
+        if (TextSecurePreferences.isLinkPreviewsEnabled(this)) {
+            linkPreviewViewModel?.onTextChanged(this, inputBar.text, 0, 0)
+        }
         showOrHideMentionCandidatesIfNeeded(newContent)
+        if (LinkPreviewUtil.findWhitelistedUrls(newContent.toString()).isNotEmpty()
+            && !TextSecurePreferences.isLinkPreviewsEnabled(this) && !TextSecurePreferences.hasSeenLinkPreviewSuggestionDialog(this)) {
+            LinkPreviewDialog {
+                setUpLinkPreviewObserver()
+                linkPreviewViewModel?.onEnabled()
+                linkPreviewViewModel?.onTextChanged(this, inputBar.text, 0, 0)
+            }.show(supportFragmentManager, "Link Preview Dialog")
+            TextSecurePreferences.setHasSeenLinkPreviewSuggestionDialog(this)
+        }
     }
 
     private fun showOrHideMentionCandidatesIfNeeded(text: CharSequence) {

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/dialogs/LinkPreviewDialog.kt

@@ -4,11 +4,12 @@ import android.view.LayoutInflater
 import androidx.appcompat.app.AlertDialog
 import kotlinx.android.synthetic.main.dialog_link_preview.view.*
 import network.loki.messenger.R
+import org.session.libsession.utilities.TextSecurePreferences
 import org.thoughtcrime.securesms.conversation.v2.utilities.BaseDialog
 
 /** Shown the first time the user inputs a URL that could generate a link preview, to
  * let them know that Session offers the ability to send and receive link previews. */
-class LinkPreviewDialog() : BaseDialog() {
+class LinkPreviewDialog(private val onEnabled: () -> Unit) : BaseDialog() {
 
     override fun setContentView(builder: AlertDialog.Builder) {
         val contentView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_link_preview, null)
@@ -18,6 +19,8 @@ class LinkPreviewDialog() : BaseDialog() {
     }
 
     private fun enable() {
-        // TODO: Implement
+        TextSecurePreferences.setLinkPreviewsEnabled(requireContext(), true)
+        dismiss()
+        onEnabled()
     }
 }

app/src/main/java/org/thoughtcrime/securesms/preferences/AppProtectionPreferenceFragment.java

@@ -103,7 +103,6 @@ public class AppProtectionPreferenceFragment extends CorrectedPreferenceFragment
           TextSecurePreferences.setScreenLockTimeout(getContext(), 0);
         } else {
           long timeoutSeconds = TimeUnit.MILLISECONDS.toSeconds(duration);
-//          long timeoutSeconds = Math.max(TimeUnit.MILLISECONDS.toSeconds(duration), 60);
           TextSecurePreferences.setScreenLockTimeout(getContext(), timeoutSeconds);
         }
 
@@ -117,7 +116,6 @@ public class AppProtectionPreferenceFragment extends CorrectedPreferenceFragment
   private class ReadReceiptToggleListener implements Preference.OnPreferenceChangeListener {
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
-      boolean enabled = (boolean)newValue;
       return true;
     }
   }
@@ -138,21 +136,6 @@ public class AppProtectionPreferenceFragment extends CorrectedPreferenceFragment
   private class LinkPreviewToggleListener implements Preference.OnPreferenceChangeListener {
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
-      boolean enabled = (boolean)newValue;
-
-      if (enabled) {
-        AlertDialog.Builder builder = new AlertDialog.Builder(requireContext());
-        builder.setTitle("Enable Link Previews?");
-        builder.setMessage("You will not have full metadata protection when sending or receiving link previews.");
-        builder.setPositiveButton("OK", (dialog, which) -> dialog.dismiss());
-        builder.setNegativeButton("Cancel", (dialog, which) -> {
-          TextSecurePreferences.setLinkPreviewsEnabled(requireContext(), false);
-          ((SwitchPreferenceCompat)AppProtectionPreferenceFragment.this.findPreference(TextSecurePreferences.LINK_PREVIEWS)).setChecked(false);
-          dialog.dismiss();
-        });
-        builder.create().show();
-      }
-
       return true;
     }
   }

libsession/src/main/java/org/session/libsession/utilities/TextSecurePreferences.kt

@@ -779,4 +779,12 @@ object TextSecurePreferences {
     fun setLastOpenDate(context: Context) {
         setLongPreference(context, LAST_OPEN_DATE, System.currentTimeMillis())
     }
+
+    fun hasSeenLinkPreviewSuggestionDialog(context: Context): Boolean {
+        return getBooleanPreference(context, "has_seen_link_preview_suggestion_dialog", false)
+    }
+
+    fun setHasSeenLinkPreviewSuggestionDialog(context: Context) {
+        setBooleanPreference(context, "has_seen_link_preview_suggestion_dialog", true)
+    }
 }