Added JSON-LD option

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

@@ -3033,6 +3033,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     final int zoom = args.getInt("zoom");
                     final float scale = args.getFloat("scale");
                     final boolean download_plain = prefs.getBoolean("download_plain", false);
+                    final boolean json_ld = prefs.getBoolean("json_ld", false);
 
                     if (message == null || !message.content)
                         return null;
@@ -3166,7 +3167,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     args.putBoolean("has_amp", has_amp);
 
                     // Check for structured email
-                    if (BuildConfig.DEBUG)
+                    if (json_ld)
                         for (Element struct : document.select("script[type=application/ld+json]"))
                             try {
                                 document.body().append(new StructuredEmail(struct.html()).getHtml(context));

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

@@ -217,6 +217,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private SwitchCompat swEasyCorrect;
     private SwitchCompat swInfra;
     private SwitchCompat swTldFlags;
+    private SwitchCompat swJsonLd;
     private SwitchCompat swDupMsgId;
     private SwitchCompat swThreadByRef;
     private SwitchCompat swMdn;
@@ -284,7 +285,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             "exact_alarms",
             "native_dkim", "native_arc", "native_arc_whitelist",
             "webp", "animate_images",
-            "easy_correct", "infra", "tld_flags", "dup_msgids", "thread_byref", "mdn",
+            "easy_correct", "infra", "tld_flags", "json_ld", "dup_msgids", "thread_byref", "mdn",
             "app_chooser", "app_chooser_share", "adjacent_links", "adjacent_documents", "adjacent_portrait", "adjacent_landscape",
             "delete_confirmation", "global_keywords", "test_iab"
     };
@@ -453,6 +454,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swEasyCorrect = view.findViewById(R.id.swEasyCorrect);
         swInfra = view.findViewById(R.id.swInfra);
         swTldFlags = view.findViewById(R.id.swTldFlags);
+        swJsonLd = view.findViewById(R.id.swJsonLd);
         swDupMsgId = view.findViewById(R.id.swDupMsgId);
         swThreadByRef = view.findViewById(R.id.swThreadByRef);
         swMdn = view.findViewById(R.id.swMdn);
@@ -1561,6 +1563,13 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             }
         });
 
+        swJsonLd.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("json_ld", checked).apply();
+            }
+        });
+
         swDupMsgId.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -2365,6 +2374,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             swEasyCorrect.setChecked(prefs.getBoolean("easy_correct", false));
             swInfra.setChecked(prefs.getBoolean("infra", false));
             swTldFlags.setChecked(prefs.getBoolean("tld_flags", false));
+            swJsonLd.setChecked(prefs.getBoolean("json_ld", false));
             swDupMsgId.setChecked(prefs.getBoolean("dup_msgids", false));
             swThreadByRef.setChecked(prefs.getBoolean("thread_byref", true));
             swMdn.setChecked(prefs.getBoolean("mdn", swExperiments.isChecked()));

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

@@ -1823,6 +1823,17 @@
                     app:layout_constraintTop_toBottomOf="@id/flowInfra"
                     app:switchPadding="12dp" />
 
+                <androidx.appcompat.widget.SwitchCompat
+                    android:id="@+id/swJsonLd"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="12dp"
+                    android:text="@string/title_advanced_json_ld"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/swTldFlags"
+                    app:switchPadding="12dp" />
+
                 <TextView
                     android:id="@+id/tvDkimVerifyHint"
                     android:layout_width="0dp"
@@ -1835,7 +1846,7 @@
                     android:textStyle="italic"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/swTldFlags" />
+                    app:layout_constraintTop_toBottomOf="@id/swJsonLd" />
 
                 <androidx.appcompat.widget.SwitchCompat
                     android:id="@+id/swDupMsgId"

app/src/main/res/values/strings.xml

@@ -923,6 +923,7 @@
     <string name="title_advanced_easy_correct" translatable="false">Easy correct</string>
     <string name="title_advanced_infra" translatable="false">Show infrastructure</string>
     <string name="title_advanced_tld_flags" translatable="false">Show TLD flags</string>
+    <string name="title_advanced_json_ld" translatable="false">JSON-LD</string>
     <string name="title_advanced_dup_msgid" translatable="false">Duplicates by message ID</string>
     <string name="title_advanced_thread_by_ref" translatable="false">Thread by common reference</string>
     <string name="title_advanced_mdn" translatable="false">Process MDNs</string>