Initial version of the split CBD dialog

chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataTabsFragment.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataTabsFragment.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataTabsFragment.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataTabsFragment.java
new file mode 100644
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+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataTabsFragment.java
@@ -0,0 +1,98 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.preferences.privacy;
+
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.content.Context;
+import android.os.Bundle;
+import android.support.design.widget.TabLayout;
+import android.support.v13.app.FragmentPagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ChromeFeatureList;
+import org.chromium.chrome.browser.preferences.Preferences;
+
+/**
+ * Fragment with a {@link TabLayout} containing a basic and an advanced version of the CBD dialog.
+ */
+public class ClearBrowsingDataTabsFragment extends Fragment {
+    public static final String TAG = ClearBrowsingDataTabsFragment.class.getSimpleName();
+
+    public ClearBrowsingDataTabsFragment() {}
+
+    public static boolean isFeatureEnabled() {
+        return ChromeFeatureList.isEnabled(ChromeFeatureList.TABS_IN_CBD);
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(
+            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        // Inflate the layout for this fragment.
+        View view = inflater.inflate(R.layout.clear_browsing_data_tabs, container, false);
+
+        // Get the ViewPager and set its PagerAdapter so that it can display items.
+        ViewPager viewPager = (ViewPager) view.findViewById(R.id.clear_browsing_data_viewpager);
+        viewPager.setAdapter(
+                new ClearBrowsingDataPagerAdapter(getFragmentManager(), getActivity()));
+
+        // Give the TabLayout the ViewPager.
+        TabLayout tabLayout = (TabLayout) view.findViewById(R.id.clear_browsing_data_tabs);
+        tabLayout.setupWithViewPager(viewPager);
+
+        // Remove elevation to avoid shadow between title and tabs.
+        Preferences activity = (Preferences) getActivity();
+        activity.getSupportActionBar().setElevation(0.0f);
+
+        return view;
+    }
+
+    private static class ClearBrowsingDataPagerAdapter extends FragmentPagerAdapter {
+        private final Context mContext;
+
+        ClearBrowsingDataPagerAdapter(FragmentManager fm, Context context) {
+            super(fm);
+            mContext = context;
+        }
+
+        @Override
+        public int getCount() {
+            return 2;
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            switch (position) {
+                case 0:
+                    return new ClearBrowsingDataPreferencesBasic();
+                case 1:
+                    return new ClearBrowsingDataPreferencesAdvanced();
+                default:
+                    throw new RuntimeException("invalid position: " + position);
+            }
+        }
+
+        @Override
+        public CharSequence getPageTitle(int position) {
+            switch (position) {
+                case 0:
+                    return mContext.getString(R.string.clear_browsing_data_basic_tab_title);
+                case 1:
+                    return mContext.getString(R.string.prefs_section_advanced);
+                default:
+                    throw new RuntimeException("invalid position: " + position);
+            }
+        }
+    }
+}