Use media forward sheet when forwarding in Media preview.

app/src/main/java/org/thoughtcrime/securesms/MediaPreviewActivity.java

@@ -55,6 +55,10 @@ import org.signal.core.util.logging.Log;
 import org.thoughtcrime.securesms.animation.DepthPageTransformer;
 import org.thoughtcrime.securesms.attachments.DatabaseAttachment;
 import org.thoughtcrime.securesms.components.viewpager.ExtendedOnPageChangedListener;
+import org.thoughtcrime.securesms.conversation.mutiselect.MultiselectPart;
+import org.thoughtcrime.securesms.conversation.mutiselect.forward.MultiselectForwardBottomSheet;
+import org.thoughtcrime.securesms.conversation.mutiselect.forward.MultiselectForwardFragment;
+import org.thoughtcrime.securesms.conversation.mutiselect.forward.MultiselectForwardFragmentArgs;
 import org.thoughtcrime.securesms.database.MediaDatabase;
 import org.thoughtcrime.securesms.database.MediaDatabase.MediaRecord;
 import org.thoughtcrime.securesms.database.loaders.PagingMediaLoader;
@@ -388,10 +392,12 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
     MediaItem mediaItem = getCurrentMediaItem();
 
     if (mediaItem != null) {
-      Intent composeIntent = new Intent(this, ShareActivity.class);
+      MultiselectForwardFragmentArgs.create(
-      composeIntent.putExtra(Intent.EXTRA_STREAM, mediaItem.uri);
+          this,
-      composeIntent.setType(mediaItem.type);
+          mediaItem.uri,
-      startActivity(composeIntent);
+          mediaItem.type,
+          args -> MultiselectForwardFragment.showBottomSheet(getSupportFragmentManager(), args)
+      );
     }
   }
 

app/src/main/java/org/thoughtcrime/securesms/conversation/mutiselect/Multiselect.kt

@@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.conversation.mutiselect
 import android.Manifest
 import android.content.Context
 import android.content.pm.PackageManager
+import android.net.Uri
 import androidx.core.content.ContextCompat
 import org.thoughtcrime.securesms.TransportOption
 import org.thoughtcrime.securesms.TransportOptions
@@ -74,6 +75,22 @@ object Multiselect {
     }
   }
 
+  /**
+   * Helper function to determine whether a given attachment can be sent via MMS.
+   */
+  fun isMmsSupported(context: Context, mediaUri: Uri, mediaType: String, mediaSize: Long): Boolean {
+    val canReadPhoneState = ContextCompat.checkSelfPermission(context, Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED
+    if (!Util.isDefaultSmsProvider(context) || !canReadPhoneState || !Util.isMmsCapable(context)) {
+      return false
+    }
+
+    val options = TransportOptions(context, true)
+    options.setDefaultTransport(TransportOption.Type.SMS)
+
+    val mmsConstraints = MediaConstraints.getMmsMediaConstraints(options.selectedTransport.simSubscriptionId.orElse(-1))
+    return mmsConstraints.isSatisfied(context, mediaUri, mediaType, mediaSize) || mmsConstraints.canResize(mediaType)
+  }
+
   private fun canSendAllAttachmentsToNonPush(context: Context, messageRecord: MessageRecord): Boolean {
     return if (messageRecord is MmsMessageRecord) {
       messageRecord.slideDeck.asAttachments().all { isMmsSupported(context, it) }

app/src/main/java/org/thoughtcrime/securesms/conversation/mutiselect/forward/MultiselectForwardFragmentArgs.kt

@@ -1,6 +1,7 @@
 package org.thoughtcrime.securesms.conversation.mutiselect.forward
 
 import android.content.Context
+import android.net.Uri
 import androidx.annotation.StringRes
 import androidx.annotation.WorkerThread
 import org.signal.core.util.StreamUtil
@@ -15,6 +16,7 @@ import org.thoughtcrime.securesms.database.model.MmsMessageRecord
 import org.thoughtcrime.securesms.mediasend.Media
 import org.thoughtcrime.securesms.mms.PartAuthority
 import org.thoughtcrime.securesms.sharing.MultiShareArgs
+import org.thoughtcrime.securesms.util.MediaUtil
 import java.util.Optional
 import java.util.function.Consumer
 
@@ -32,6 +34,27 @@ class MultiselectForwardFragmentArgs(
 ) {
 
   companion object {
+    @JvmStatic
+    fun create(context: Context, mediaUri: Uri, mediaType: String, consumer: Consumer<MultiselectForwardFragmentArgs>) {
+      SignalExecutors.BOUNDED.execute {
+        val mediaSize = MediaUtil.getMediaSize(context, mediaUri)
+        val isMmsSupported = Multiselect.isMmsSupported(context, mediaUri, mediaType, mediaSize)
+        val multiShareArgs = MultiShareArgs.Builder(setOf())
+          .withDataUri(mediaUri)
+          .withDataType(mediaType)
+          .build()
+
+        ThreadUtil.runOnMain {
+          consumer.accept(
+            MultiselectForwardFragmentArgs(
+              isMmsSupported,
+              listOf(multiShareArgs)
+            )
+          )
+        }
+      }
+    }
+
     @JvmStatic
     fun create(context: Context, selectedParts: Set<MultiselectPart>, consumer: Consumer<MultiselectForwardFragmentArgs>) {
       SignalExecutors.BOUNDED.execute {

app/src/main/java/org/thoughtcrime/securesms/mms/MediaConstraints.java

@@ -77,6 +77,19 @@ public abstract class MediaConstraints {
     }
   }
 
+  public boolean isSatisfied(@NonNull Context context, @NonNull Uri uri, @NonNull String contentType, long size) {
+    try {
+      return (MediaUtil.isGif(contentType)       && size <= getGifMaxSize(context) && isWithinBounds(context, uri))   ||
+             (MediaUtil.isImageType(contentType) && size <= getImageMaxSize(context) && isWithinBounds(context, uri)) ||
+             (MediaUtil.isAudioType(contentType) && size <= getAudioMaxSize(context))                                 ||
+             (MediaUtil.isVideoType(contentType) && size <= getVideoMaxSize(context))                                 ||
+             size <= getDocumentMaxSize(context);
+    } catch (IOException ioe) {
+      Log.w(TAG, "Failed to determine if media's constraints are satisfied.", ioe);
+      return false;
+    }
+  }
+
   private boolean isWithinBounds(Context context, Uri uri) throws IOException {
     try {
       InputStream is = PartAuthority.getAttachmentStream(context, uri);
@@ -93,6 +106,11 @@ public abstract class MediaConstraints {
            MediaUtil.isVideo(attachment) && isVideoTranscodeAvailable();
   }
 
+  public boolean canResize(@NonNull String mediaType) {
+    return MediaUtil.isImageType(mediaType) && !MediaUtil.isGif(mediaType) ||
+           MediaUtil.isVideoType(mediaType) && isVideoTranscodeAvailable();
+  }
+
   public static boolean isVideoTranscodeAvailable() {
     return Build.VERSION.SDK_INT >= 26 && (FeatureFlags.useStreamingVideoMuxer() || MemoryFileDescriptor.supported());
   }