EML share attachments

app/src/main/java/eu/faircode/email/ActivityEML.java

@@ -51,6 +51,7 @@ import com.sun.mail.imap.IMAPFolder;
 
 import org.jsoup.nodes.Document;
 
+import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.InputStream;
@@ -177,7 +178,41 @@ public class ActivityEML extends ActivityBase {
                         result.parts.getAttachmentParts(),
                         new AdapterAttachmentEML.IEML() {
                             @Override
-                            public void onSelected(MessageHelper.AttachmentPart apart) {
+                            public void onShare(MessageHelper.AttachmentPart apart) {
+                                new SimpleTask<File>() {
+                                    @Override
+                                    protected File onExecute(Context context, Bundle args) throws Throwable {
+                                        apart.attachment.id = 0L;
+                                        File file = apart.attachment.getFile(context);
+                                        Log.i("Writing to " + file);
+
+                                        try (InputStream is = apart.part.getInputStream()) {
+                                            try (OutputStream os = new FileOutputStream(file)) {
+                                                byte[] buffer = new byte[Helper.BUFFER_SIZE];
+                                                for (int len = is.read(buffer); len != -1; len = is.read(buffer))
+                                                    os.write(buffer, 0, len);
+                                            }
+                                        }
+
+                                        return file;
+                                    }
+
+                                    @Override
+                                    protected void onExecuted(Bundle args, File file) {
+                                        Helper.share(ActivityEML.this, file,
+                                                apart.attachment.getMimeType(),
+                                                apart.attachment.name);
+                                    }
+
+                                    @Override
+                                    protected void onException(Bundle args, Throwable ex) {
+                                        Log.unexpectedError(getSupportFragmentManager(), ex);
+                                    }
+                                }.execute(ActivityEML.this, new Bundle(), "eml:share");
+                            }
+
+                            @Override
+                            public void onSave(MessageHelper.AttachmentPart apart) {
                                 ActivityEML.this.apart = apart;
 
                                 Intent create = new Intent(Intent.ACTION_CREATE_DOCUMENT);

app/src/main/java/eu/faircode/email/AdapterAttachmentEML.java

@@ -23,6 +23,7 @@ import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ImageButton;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
@@ -41,6 +42,7 @@ public class AdapterAttachmentEML extends RecyclerView.Adapter<AdapterAttachment
         private TextView tvName;
         private TextView tvSize;
         private TextView tvType;
+        private ImageButton ibSave;
 
         ViewHolder(View itemView) {
             super(itemView);
@@ -49,14 +51,17 @@ public class AdapterAttachmentEML extends RecyclerView.Adapter<AdapterAttachment
             tvName = itemView.findViewById(R.id.tvName);
             tvSize = itemView.findViewById(R.id.tvSize);
             tvType = itemView.findViewById(R.id.tvType);
+            ibSave = itemView.findViewById(R.id.ibSave);
         }
 
         private void wire() {
             view.setOnClickListener(this);
+            ibSave.setOnClickListener(this);
         }
 
         private void unwire() {
             view.setOnClickListener(null);
+            ibSave.setOnClickListener(null);
         }
 
         private void bindTo(MessageHelper.AttachmentPart apart) {
@@ -81,7 +86,10 @@ public class AdapterAttachmentEML extends RecyclerView.Adapter<AdapterAttachment
 
             MessageHelper.AttachmentPart apart = aparts.get(pos);
             if (apart != null)
-                intf.onSelected(apart);
+                if (view.getId() == R.id.ibSave)
+                    intf.onSave(apart);
+                else
+                    intf.onShare(apart);
         }
     }
 
@@ -115,6 +123,8 @@ public class AdapterAttachmentEML extends RecyclerView.Adapter<AdapterAttachment
     }
 
     interface IEML {
-        void onSelected(MessageHelper.AttachmentPart apart);
+        void onShare(MessageHelper.AttachmentPart apart);
+
+        void onSave(MessageHelper.AttachmentPart apart);
     }
 }

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

@@ -17,7 +17,7 @@
             android:layout_width="24dp"
             android:layout_height="24dp"
             android:contentDescription="@string/title_legend_attachment"
-            app:layout_constraintBottom_toBottomOf="@+id/tvType"
+            app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent"
             app:srcCompat="@drawable/baseline_attachment_24" />
@@ -57,9 +57,21 @@
             android:layout_marginStart="6dp"
             android:text="10 kB"
             android:textAppearance="@style/TextAppearance.AppCompat.Small"
-            app:layout_constraintBottom_toBottomOf="@id/tvType"
+            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/ibSave"
             app:layout_constraintStart_toEndOf="@id/tvType"
-            app:layout_constraintTop_toTopOf="@id/tvName" />
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageButton
+            android:id="@+id/ibSave"
+            android:layout_width="wrap_content"
+            android:layout_height="0dp"
+            android:background="?android:attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/title_legend_save"
+            android:paddingStart="12dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:srcCompat="@drawable/baseline_save_24" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </FrameLayout>