Added link click ripple

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

@@ -463,6 +463,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         private TextView tvBody;
         private View wvBody;
         private ContentLoadingProgressBar pbBody;
+        private View vwRipple;
         private TextView tvNoInternetBody;
         private ImageButton ibDownloading;
         private Group grpDownloading;
@@ -584,9 +585,11 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                                 if (image.length > 0 && image[0].getSource() != null) {
                                     ImageHelper.AnnotatedSource a = new ImageHelper.AnnotatedSource(image[0].getSource());
                                     Uri uri = Uri.parse(a.getSource());
-                                    if ("http".equals(uri.getScheme()) || "https".equals(uri.getScheme()))
+                                    if ("http".equals(uri.getScheme()) || "https".equals(uri.getScheme())) {
+                                        ripple(event);
                                         if (onOpenLink(uri, null, false))
                                             return true;
+                                    }
                                 }
                             }
 
@@ -602,6 +605,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                                 if (url.equals(title))
                                     title = null;
 
+                                ripple(event);
                                 if (onOpenLink(uri, title, false))
                                     return true;
                             }
@@ -611,8 +615,10 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                                 ImageHelper.AnnotatedSource a = new ImageHelper.AnnotatedSource(image[0].getSource());
                                 String source = a.getSource();
                                 if (!TextUtils.isEmpty(source)) {
-                                    if (!a.isTracking())
+                                    if (!a.isTracking()) {
+                                        ripple(event);
                                         onOpenImage(message.id, source);
+                                    }
                                     return true;
                                 }
                             }
@@ -626,6 +632,18 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
                             return false;
                         }
+
+                        private void ripple(MotionEvent event) {
+                            int r = context.getResources().getDimensionPixelSize(R.dimen.ripple_radius);
+                            vwRipple.setLeft(tvBody.getLeft() + Math.round(event.getX()) - r);
+                            vwRipple.setTop(tvBody.getTop() + Math.round(event.getY()) - r);
+                            vwRipple.setRight(tvBody.getLeft() + Math.round(event.getX()) + r);
+                            vwRipple.setBottom(tvBody.getTop() + Math.round(event.getY()) + r);
+                            vwRipple.setClickable(true);
+                            vwRipple.setPressed(true);
+                            vwRipple.setPressed(false);
+                            vwRipple.setClickable(false);
+                        }
                     });
 
             @Override
@@ -858,6 +876,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             tvBody = vsBody.findViewById(R.id.tvBody);
             wvBody = vsBody.findViewById(R.id.wvBody);
             pbBody = vsBody.findViewById(R.id.pbBody);
+            vwRipple = vsBody.findViewById(R.id.vwRipple);
             tvNoInternetBody = vsBody.findViewById(R.id.tvNoInternetBody);
             ibDownloading = vsBody.findViewById(R.id.ibDownloading);
             grpDownloading = vsBody.findViewById(R.id.grpDownloading);

app/src/main/res/drawable/ripple.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="?android:colorControlHighlight" />

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

@@ -102,6 +102,14 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/tvDownloading" />
 
+    <View
+        android:id="@+id/vwRipple"
+        android:layout_width="24dp"
+        android:layout_height="24dp"
+        android:background="@drawable/ripple"
+        app:layout_constraintStart_toStartOf="@+id/tvBody"
+        app:layout_constraintTop_toTopOf="@+id/tvBody" />
+
     <View
         android:id="@+id/wvBody"
         android:layout_width="0dp"

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

@@ -13,4 +13,5 @@
     <dimen name="quote_stripe_width">3dp</dimen>
     <dimen name="line_dash_length">3dp</dimen>
     <dimen name="search_in_text_margin">48dp</dimen>
+    <dimen name="ripple_radius">24dp</dimen>
 </resources>