Show backoff state

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

@@ -186,8 +186,13 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
                 ivState.setImageResource(R.drawable.twotone_cancel_24);
                 ivState.setContentDescription(context.getString(R.string.title_legend_closing));
             } else {
-                ivState.setImageResource(R.drawable.twotone_cloud_off_24);
+                if (account.backoff_until == null) {
-                ivState.setContentDescription(context.getString(R.string.title_legend_disconnected));
+                    ivState.setImageResource(R.drawable.twotone_cloud_off_24);
+                    ivState.setContentDescription(context.getString(R.string.title_legend_disconnected));
+                } else {
+                    ivState.setImageResource(R.drawable.twotone_update_24);
+                    ivState.setContentDescription(context.getString(R.string.title_legend_backoff));
+                }
             }
             ivState.setVisibility(account.synchronize || account.state != null ? View.VISIBLE : View.INVISIBLE);
 
@@ -456,7 +461,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
         this.colorUnread = (highlight_unread ? colorHighlight : Helper.resolveColor(context, R.attr.colorUnread));
         this.textColorSecondary = Helper.resolveColor(context, android.R.attr.textColorSecondary);
 
-        this.DTF = Helper.getDateTimeInstance(context, DateFormat.SHORT, DateFormat.SHORT);
+        this.DTF = Helper.getDateTimeInstance(context, DateFormat.SHORT, DateFormat.MEDIUM);
 
         setHasStableIds(true);
 

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

@@ -89,9 +89,14 @@ public class AdapterNavAccount extends RecyclerView.Adapter<AdapterNavAccount.Vi
         }
 
         private void bindTo(TupleAccountEx account) {
-            ivItem.setImageResource("connected".equals(account.state)
+            if ("connected".equals(account.state))
-                    ? account.primary ? R.drawable.twotone_folder_special_24 : R.drawable.twotone_folder_done_24
+                ivItem.setImageResource(account.primary
-                    : R.drawable.twotone_folder_24);
+                        ? R.drawable.twotone_folder_special_24
+                        : R.drawable.twotone_folder_done_24);
+            else
+                ivItem.setImageResource(account.backoff_until == null
+                        ? R.drawable.twotone_folder_24
+                        : R.drawable.twotone_update_24);
 
             if (account.color == null)
                 ivItem.clearColorFilter();

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

@@ -58,9 +58,19 @@ public class FragmentLegend extends FragmentBase {
             pager = view.findViewById(R.id.pager);
             adapter = new PagerAdapter(getChildFragmentManager());
             pager.setAdapter(adapter);
-        } else
+        } else {
             view = inflater.inflate(layout, container, false);
 
+            if (layout == R.layout.fragment_legend_synchronization) {
+                view.findViewById(R.id.ibInfoBackoff).setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        Helper.viewFAQ(getContext(), 123);
+                    }
+                });
+            }
+        }
+
         return view;
     }
 

app/src/main/res/drawable/twotone_update_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M11,8v5l4.25,2.52l0.77,-1.28l-3.52,-2.09V8H11zM21,10V3l-2.64,2.64C16.74,4.01 14.49,3 12,3c-4.97,0 -9,4.03 -9,9s4.03,9 9,9s9,-4.03 9,-9h-2c0,3.86 -3.14,7 -7,7s-7,-3.14 -7,-7s3.14,-7 7,-7c1.93,0 3.68,0.79 4.95,2.05L14,10H21z"/>
+</vector>

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

@@ -210,6 +210,39 @@
             app:layout_constraintStart_toEndOf="@id/ivDisconnected"
             app:layout_constraintTop_toTopOf="@id/ivDisconnected" />
 
+        <ImageView
+            android:id="@+id/ivBackoff"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:contentDescription="@string/title_legend_backoff"
+            android:padding="12dp"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/ivDisconnected"
+            app:srcCompat="@drawable/twotone_update_24" />
+
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvBackoff"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:gravity="center_vertical"
+            android:text="@string/title_legend_backoff"
+            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            app:layout_constraintBottom_toBottomOf="@id/ivBackoff"
+            app:layout_constraintEnd_toStartOf="@id/ibInfoBackoff"
+            app:layout_constraintStart_toEndOf="@id/ivBackoff"
+            app:layout_constraintTop_toTopOf="@id/ivBackoff" />
+
+        <ImageButton
+            android:id="@+id/ibInfoBackoff"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:contentDescription="@string/title_info"
+            android:tooltipText="@string/title_info"
+            app:layout_constraintBottom_toBottomOf="@id/ivBackoff"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@id/ivBackoff"
+            app:srcCompat="@drawable/twotone_info_24" />
+
         <ImageView
             android:id="@+id/ivConnecting"
             android:layout_width="wrap_content"
@@ -217,7 +250,7 @@
             android:contentDescription="@string/title_legend_connecting"
             android:padding="12dp"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/ivDisconnected"
+            app:layout_constraintTop_toBottomOf="@id/ivBackoff"
             app:srcCompat="@drawable/twotone_cloud_queue_24" />
 
         <eu.faircode.email.FixedTextView

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

@@ -1206,6 +1206,7 @@
     <string name="title_legend_synchronize_off">Synchronize off</string>
     <string name="title_legend_synchronize_poll">Synchronize periodically</string>
     <string name="title_legend_disconnected">Disconnected</string>
+    <string name="title_legend_backoff">Waiting</string>
     <string name="title_legend_connecting">Connecting</string>
     <string name="title_legend_connected">Connected</string>
     <string name="title_legend_executing">Executing operations</string>