Edit signature as HTML

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

@@ -33,6 +33,7 @@ import android.os.Handler;
 import android.provider.ContactsContract;
 import android.text.Editable;
 import android.text.Html;
+import android.text.Spanned;
 import android.text.TextUtils;
 import android.text.TextWatcher;
 import android.util.Patterns;
@@ -88,6 +89,7 @@ public class FragmentIdentity extends FragmentEx {
     private ImageView ibColorDefault;
     private EditText etSignature;
     private ImageButton ibPro;
+    private Button btnHtml;
 
     private Button btnAdvanced;
     private Spinner spProvider;
@@ -149,6 +151,7 @@ public class FragmentIdentity extends FragmentEx {
         ibColorDefault = view.findViewById(R.id.ibColorDefault);
         etSignature = view.findViewById(R.id.etSignature);
         ibPro = view.findViewById(R.id.ibPro);
+        btnHtml = view.findViewById(R.id.btnHtml);
 
         btnAdvanced = view.findViewById(R.id.btnAdvanced);
         spProvider = view.findViewById(R.id.spProvider);
@@ -304,6 +307,26 @@ public class FragmentIdentity extends FragmentEx {
             }
         });
 
+        btnHtml.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                View dview = LayoutInflater.from(getContext()).inflate(R.layout.dialog_html, null);
+                final EditText etHtml = dview.findViewById(R.id.etHtml);
+                etHtml.setText(Html.toHtml(etSignature.getText()));
+
+                new DialogBuilderLifecycle(getContext(), getViewLifecycleOwner())
+                        .setView(dview)
+                        .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                Spanned html = Html.fromHtml(etHtml.getText().toString());
+                                etSignature.setText(html);
+                            }
+                        })
+                        .show();
+            }
+        });
+
         btnAdvanced.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -736,6 +759,7 @@ public class FragmentIdentity extends FragmentEx {
                     lp.width = 0;
                     ibPro.setLayoutParams(lp);
                 }
+                btnHtml.setEnabled(pro);
 
                 cbPrimary.setEnabled(cbSynchronize.isChecked());
 

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

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="12dp">
+
+    <EditText
+        android:id="@+id/etHtml"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@null"
+        android:fontFamily="monospace"
+        android:gravity="top"
+        android:hint="@string/title_edit_html"
+        android:inputType="text|textMultiLine"
+        android:minHeight="120dp"
+        android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -161,6 +161,17 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toTopOf="@id/etSignature" />
 
+        <Button
+            android:id="@+id/btnHtml"
+            style="@style/buttonStyleSmall"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:minWidth="0dp"
+            android:minHeight="0dp"
+            android:text="@string/title_edit_html"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/etSignature" />
+
         <Button
             android:id="@+id/btnAdvanced"
             style="@style/buttonStyleSmall"
@@ -171,7 +182,7 @@
             android:minHeight="0dp"
             android:text="@string/title_setup_advanced"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/etSignature" />
+            app:layout_constraintTop_toBottomOf="@id/btnHtml" />
 
         <!--- provider -->
 
@@ -529,7 +540,7 @@
             android:id="@+id/grpAuthorize"
             android:layout_width="0dp"
             android:layout_height="0dp"
-            app:constraint_referenced_ids="tvName,etName,tvEmail,etEmail,tvDisplay,etDisplay,btnColor,vwColor,ibColorDefault,tvSignature,etSignature,ibPro,btnAdvanced,btnSave" />
+            app:constraint_referenced_ids="tvName,etName,tvEmail,etEmail,tvDisplay,etDisplay,btnColor,vwColor,ibColorDefault,tvSignature,etSignature,ibPro,btnHtml,btnAdvanced,btnSave" />
 
         <androidx.constraintlayout.widget.Group
             android:id="@+id/grpAdvanced"

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

@@ -206,6 +206,7 @@
     <string name="title_identity_delete">Delete this identity permanently?</string>
     <string name="title_pop">POP is not supported</string>
     <string name="title_identity_sent_hint">Sent messages will automatically be stored in the sent folder already in most cases</string>
+    <string name="title_edit_html">Edit as HTML</string>
 
     <string name="title_unseen_count" translatable="false">%1$s (%2$d)</string>