Cards everywhere

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

@@ -0,0 +1,71 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    FairEmail is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2019 by Marcel Bokhorst (M66B)
+*/
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.graphics.Color;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.cardview.widget.CardView;
+import androidx.preference.PreferenceManager;
+
+public class ViewCardOptional extends CardView {
+    public ViewCardOptional(@NonNull Context context) {
+        super(context);
+    }
+
+    public ViewCardOptional(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public ViewCardOptional(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
+        boolean cards = prefs.getBoolean("cards", true);
+        if (cards) {
+            int dp6 = Helper.dp2pixels(getContext(), 6);
+            int color = Helper.resolveColor(getContext(), R.attr.colorCardBackground);
+
+            FrameLayout.LayoutParams lparam = (FrameLayout.LayoutParams) getLayoutParams();
+            lparam.setMargins(dp6, dp6, dp6, dp6);
+            setLayoutParams(lparam);
+
+            setRadius(dp6);
+            setElevation(dp6);
+            setCardBackgroundColor(color);
+
+            getChildAt(0).setPadding(dp6, dp6, dp6, dp6);
+        } else {
+            setRadius(0);
+            setElevation(0);
+            setCardBackgroundColor(Color.TRANSPARENT);
+        }
+    }
+}