Added option to disable bundle fonts

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

@@ -165,6 +165,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
     private SwitchCompat swAttachmentsAlt;
     private SwitchCompat swThumbnails;
 
+    private SwitchCompat swBundledFonts;
     private SwitchCompat swParseClasses;
     private SwitchCompat swAuthentication;
     private SwitchCompat swAuthenticationIndicator;
@@ -192,7 +193,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
             "display_font", "contrast", "monospaced_pre",
             "background_color", "text_color", "text_size", "text_font", "text_align", "text_separators",
             "collapse_quotes", "image_placeholders", "inline_images", "button_extra", "attachments_alt", "thumbnails",
-            "parse_classes",
+            "bundled_fonts", "parse_classes",
             "authentication", "authentication_indicator"
     };
 
@@ -306,6 +307,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swButtonExtra = view.findViewById(R.id.swButtonExtra);
         swAttachmentsAlt = view.findViewById(R.id.swAttachmentsAlt);
         swThumbnails = view.findViewById(R.id.swThumbnails);
+        swBundledFonts = view.findViewById(R.id.swBundledFonts);
         swParseClasses = view.findViewById(R.id.swParseClasses);
         swAuthentication = view.findViewById(R.id.swAuthentication);
         swAuthenticationIndicator = view.findViewById(R.id.swAuthenticationIndicator);
@@ -1137,6 +1139,13 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
             }
         });
 
+        swBundledFonts.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("bundled_fonts", checked).apply();
+            }
+        });
+
         swParseClasses.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -1378,6 +1387,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swAttachmentsAlt.setChecked(prefs.getBoolean("attachments_alt", false));
         swThumbnails.setChecked(prefs.getBoolean("thumbnails", true));
 
+        swBundledFonts.setChecked(prefs.getBoolean("bundled_fonts", true));
         swParseClasses.setChecked(prefs.getBoolean("parse_classes", true));
         swAuthentication.setChecked(prefs.getBoolean("authentication", true));
         swAuthenticationIndicator.setChecked(prefs.getBoolean("authentication_indicator", false));

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

@@ -954,6 +954,9 @@ public class StyleHelper {
         if (TextUtils.isEmpty(family))
             return Typeface.DEFAULT;
 
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        boolean bundled_fonts = prefs.getBoolean("bundled_fonts", true);
+
         List<String> faces = new ArrayList<>();
         for (String face : family.split(","))
             faces.add(face
@@ -965,34 +968,36 @@ public class StyleHelper {
         if (faces.contains("fairemail"))
             return ResourcesCompat.getFont(context, R.font.fantasy);
 
-        if (faces.contains("arimo") ||
-                faces.contains("arial") ||
-                faces.contains("verdana") ||
-                faces.contains("helvetica"))
-            return ResourcesCompat.getFont(context, R.font.arimo);
+        if (bundled_fonts) {
+            if (faces.contains("arimo") ||
+                    faces.contains("arial") ||
+                    faces.contains("verdana") ||
+                    faces.contains("helvetica"))
+                return ResourcesCompat.getFont(context, R.font.arimo);
 
-        if (faces.contains("tinos") ||
-                faces.contains("times new roman"))
-            return ResourcesCompat.getFont(context, R.font.tinos);
+            if (faces.contains("tinos") ||
+                    faces.contains("times new roman"))
+                return ResourcesCompat.getFont(context, R.font.tinos);
 
-        if (faces.contains("cousine") ||
-                faces.contains("courier new"))
-            return ResourcesCompat.getFont(context, R.font.cousine);
+            if (faces.contains("cousine") ||
+                    faces.contains("courier new"))
+                return ResourcesCompat.getFont(context, R.font.cousine);
 
-        if (faces.contains("lato") ||
-                faces.contains("carlito") ||
-                faces.contains("calibri"))
-            return ResourcesCompat.getFont(context, R.font.lato);
+            if (faces.contains("lato") ||
+                    faces.contains("carlito") ||
+                    faces.contains("calibri"))
+                return ResourcesCompat.getFont(context, R.font.lato);
 
-        if (faces.contains("caladea") ||
-                faces.contains("cambo") ||
-                faces.contains("cambria"))
-            return ResourcesCompat.getFont(context, R.font.caladea);
+            if (faces.contains("caladea") ||
+                    faces.contains("cambo") ||
+                    faces.contains("cambria"))
+                return ResourcesCompat.getFont(context, R.font.caladea);
 
-        if (faces.contains("opendyslexic") ||
-                faces.contains("comic sans") ||
-                faces.contains("comic sans ms"))
-            return ResourcesCompat.getFont(context, R.font.opendyslexic);
+            if (faces.contains("opendyslexic") ||
+                    faces.contains("comic sans") ||
+                    faces.contains("comic sans ms"))
+                return ResourcesCompat.getFont(context, R.font.opendyslexic);
+        }
 
         for (String face : faces) {
             Typeface tf = Typeface.create(face, Typeface.NORMAL);

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

@@ -1759,6 +1759,18 @@
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
 
+                <androidx.appcompat.widget.SwitchCompat
+                    android:id="@+id/swBundledFonts"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="12dp"
+                    android:checked="true"
+                    android:text="@string/title_advanced_bundled_fonts"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/tvAdvanced"
+                    app:switchPadding="12dp" />
+
                 <androidx.appcompat.widget.SwitchCompat
                     android:id="@+id/swParseClasses"
                     android:layout_width="0dp"
@@ -1767,7 +1779,7 @@
                     android:text="@string/title_advanced_parse_classes"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/tvAdvanced"
+                    app:layout_constraintTop_toBottomOf="@id/swBundledFonts"
                     app:switchPadding="12dp" />
 
                 <eu.faircode.email.FixedTextView

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

@@ -521,6 +521,7 @@
     <string name="title_advanced_actionbar">Show conversation action bar</string>
     <string name="title_advanced_actionbar_color">Use account color as background color for conversation action bar</string>
     <string name="title_advanced_navbar_colorize">Colorize the Android navigation bar</string>
+    <string name="title_advanced_bundled_fonts">Use bundled fonts</string>
     <string name="title_advanced_parse_classes">Parse style sheets</string>
     <string name="title_advanced_authentication">Show authentication warnings</string>
     <string name="title_advanced_authentication_hint">The underlying checks can be configured in the receive settings</string>