Removed unused inline images on save draft

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

@@ -87,6 +87,7 @@ import com.google.android.material.bottomnavigation.LabelVisibilityMode;
 import com.google.android.material.snackbar.Snackbar;
 
 import org.jsoup.Jsoup;
+import org.jsoup.nodes.Element;
 import org.openintents.openpgp.OpenPgpError;
 import org.openintents.openpgp.util.OpenPgpApi;
 import org.openintents.openpgp.util.OpenPgpServiceConnection;
@@ -2003,6 +2004,20 @@ public class FragmentCompose extends FragmentBase {
                     db.message().setMessageContent(draft.id, true, HtmlHelper.getPreview(body));
                 }
 
+                // Remove unused inline images
+                List<String> cids = new ArrayList<>();
+                for (Element element : Jsoup.parse(body.toString()).select("img")) {
+                    String src = element.attr("src");
+                    if (src.startsWith("cid:"))
+                        cids.add("<" + src.substring(4) + ">");
+                }
+
+                for (EntityAttachment attachment : new ArrayList<>(attachments))
+                    if (attachment.isInline() && attachment.cid != null && !cids.contains(attachment.cid)) {
+                        Log.i("Removing unused inline attachment cid=" + attachment.cid);
+                        db.attachment().deleteAttachment(attachment.id);
+                    }
+
                 // Execute action
                 if (action == R.id.action_delete) {
                     EntityFolder trash = db.folder().getFolderByType(draft.account, EntityFolder.TRASH);

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

@@ -23,9 +23,6 @@ import android.content.Context;
 import android.text.TextUtils;
 import android.webkit.MimeTypeMap;
 
-import org.jsoup.Jsoup;
-import org.jsoup.nodes.Element;
-
 import java.io.BufferedOutputStream;
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
@@ -336,21 +333,8 @@ public class MessageHelper {
         alternativePart.addBodyPart(plainPart);
         alternativePart.addBodyPart(htmlPart);
 
-        List<String> cids = new ArrayList<>();
-        for (Element element : Jsoup.parse(body.toString()).select("img")) {
-            String src = element.attr("src");
-            if (src.startsWith("cid:"))
-                cids.add("<" + src.substring(4) + ">");
-        }
-
-        List<EntityAttachment> attachments = db.attachment().getAttachments(message.id);
-        for (EntityAttachment attachment : new ArrayList<>(attachments))
-            if (attachment.isInline() && attachment.cid != null && !cids.contains(attachment.cid)) {
-                Log.i("Removing unused inline attachment cid=" + attachment.cid);
-                attachments.remove(attachment);
-            }
-
         int available = 0;
+        List<EntityAttachment> attachments = db.attachment().getAttachments(message.id);
         for (EntityAttachment attachment : attachments)
             if (attachment.available)
                 available++;