Added experimental translate button (debug only)

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

@@ -239,6 +239,7 @@ public class FragmentCompose extends FragmentBase {
     private TextView tvDsn;
     private TextView tvPlainTextOnly;
     private EditTextCompose etBody;
+    private ImageButton ibTranslate;
     private TextView tvNoInternet;
     private TextView tvSignature;
     private CheckBox cbSignature;
@@ -351,6 +352,7 @@ public class FragmentCompose extends FragmentBase {
         tvDsn = view.findViewById(R.id.tvDsn);
         tvPlainTextOnly = view.findViewById(R.id.tvPlainTextOnly);
         etBody = view.findViewById(R.id.etBody);
+        ibTranslate = view.findViewById(R.id.ibTranslate);
         tvNoInternet = view.findViewById(R.id.tvNoInternet);
         tvSignature = view.findViewById(R.id.tvSignature);
         cbSignature = view.findViewById(R.id.cbSignature);
@@ -696,6 +698,41 @@ public class FragmentCompose extends FragmentBase {
             }
         });
 
+        ibTranslate.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (getParagraph() == null)
+                    return;
+
+                PopupMenuLifecycle popupMenu = new PopupMenuLifecycle(getContext(), getViewLifecycleOwner(), v);
+
+                List<Pair<String, String>> languages = DeepL.getTargetLanguages(getContext());
+                if (languages != null) {
+                    String pkg = getContext().getPackageName();
+                    for (int i = 0; i < languages.size(); i++) {
+                        Pair<String, String> lang = languages.get(i);
+                        MenuItem item = popupMenu.getMenu().add(R.id.group_translate, i + 1, i + 1, lang.first)
+                                .setIntent(new Intent().putExtra("target", lang.second));
+
+                        String resname = "language_" + lang.second.toLowerCase().replace('-', '_');
+                        int resid = getResources().getIdentifier(resname, "drawable", pkg);
+                        if (resid > 0)
+                            item.setIcon(resid);
+                    }
+                }
+
+                popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
+                    @Override
+                    public boolean onMenuItemClick(MenuItem item) {
+                        onMenuTranslate(item.getIntent().getStringExtra("target"));
+                        return true;
+                    }
+                });
+
+                popupMenu.showWithIcons(getContext(), v);
+            }
+        });
+
         tvSignature.setTypeface(monospaced ? Typeface.MONOSPACE : Typeface.DEFAULT);
 
         cbSignature.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@@ -879,6 +916,7 @@ public class FragmentCompose extends FragmentBase {
         grpAttachments.setVisibility(View.GONE);
         tvNoInternet.setVisibility(View.GONE);
         grpBody.setVisibility(View.GONE);
+        ibTranslate.setVisibility(BuildConfig.DEBUG ? View.VISIBLE : View.GONE);
         grpSignature.setVisibility(View.GONE);
         grpReferenceHint.setVisibility(View.GONE);
         ibReferenceEdit.setVisibility(View.GONE);

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

@@ -25,6 +25,7 @@ import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.text.SpannableStringBuilder;
 import android.text.style.ImageSpan;
+import android.view.Gravity;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.SubMenu;
@@ -33,6 +34,8 @@ import android.view.View;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.view.ContextThemeWrapper;
+import androidx.appcompat.view.menu.MenuBuilder;
+import androidx.appcompat.view.menu.MenuPopupHelper;
 import androidx.appcompat.widget.PopupMenu;
 import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.LifecycleObserver;
@@ -62,6 +65,13 @@ public class PopupMenuLifecycle extends PopupMenu implements LifecycleObserver {
         }
     }
 
+    public void showWithIcons(Context context, View anchor) {
+        MenuPopupHelper menuHelper = new MenuPopupHelper(context, (MenuBuilder) getMenu(), anchor);
+        menuHelper.setForceShowIcon(true);
+        menuHelper.setGravity(Gravity.END);
+        menuHelper.show();
+    }
+
     @Override
     public void setOnMenuItemClickListener(@Nullable OnMenuItemClickListener listener) {
         super.setOnMenuItemClickListener(new OnMenuItemClickListener() {

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

@@ -297,6 +297,17 @@
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toBottomOf="@id/tvPlainTextOnly" />
 
+                <ImageButton
+                    android:id="@+id/ibTranslate"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:background="?attr/selectableItemBackground"
+                    android:padding="12dp"
+                    android:tint="?attr/colorSeparator"
+                    app:layout_constraintBottom_toBottomOf="@id/vSeparatorBody"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:srcCompat="@drawable/outline_translate_24" />
+
                 <eu.faircode.email.FixedTextView
                     android:id="@+id/tvNoInternet"
                     android:layout_width="wrap_content"