1 files changed, 189 insertions, 0 deletions
diff --git a/java/com/android/dialer/app/list/DialtactsPagerAdapter.java b/java/com/android/dialer/app/list/DialtactsPagerAdapter.java
new file mode 100644
index 000000000..3b700d81b
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+++ b/java/com/android/dialer/app/list/DialtactsPagerAdapter.java
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dialer.app.list;
+
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.content.Context;
+import android.support.annotation.IntDef;
+import android.support.v13.app.FragmentPagerAdapter;
+import android.view.ViewGroup;
+import com.android.dialer.app.calllog.CallLogFragment;
+import com.android.dialer.app.calllog.VisualVoicemailCallLogFragment;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.ConfigProviderBindings;
+import com.android.dialer.common.LogUtil;
+import com.android.dialer.database.CallLogQueryHandler;
+import com.android.dialer.speeddial.SpeedDialFragment;
+import com.android.dialer.util.ViewUtil;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/** ViewPager adapter for {@link com.android.dialer.app.DialtactsActivity}. */
+public class DialtactsPagerAdapter extends FragmentPagerAdapter {
+
+  /** IntDef for indices of ViewPager tabs. */
+  @Retention(RetentionPolicy.SOURCE)
+  @IntDef({TAB_INDEX_SPEED_DIAL, TAB_INDEX_HISTORY, TAB_INDEX_ALL_CONTACTS, TAB_INDEX_VOICEMAIL})
+  public @interface TabIndex {}
+
+  public static final int TAB_INDEX_SPEED_DIAL = 0;
+  public static final int TAB_INDEX_HISTORY = 1;
+  public static final int TAB_INDEX_ALL_CONTACTS = 2;
+  public static final int TAB_INDEX_VOICEMAIL = 3;
+  public static final int TAB_COUNT_DEFAULT = 3;
+  public static final int TAB_COUNT_WITH_VOICEMAIL = 4;
+
+  private final List<Fragment> fragments = new ArrayList<>();
+  private final String[] tabTitles;
+  private final boolean useNewSpeedDialTab;
+
+  private OldSpeedDialFragment oldSpeedDialFragment;
+  private SpeedDialFragment speedDialFragment;
+  private CallLogFragment callLogFragment;
+  private AllContactsFragment contactsFragment;
+  private CallLogFragment voicemailFragment;
+
+  public boolean hasActiveVoicemailProvider;
+
+  public DialtactsPagerAdapter(
+      Context context, FragmentManager fm, String[] tabTitles, boolean hasVoicemailProvider) {
+    super(fm);
+    useNewSpeedDialTab =
+        ConfigProviderBindings.get(context).getBoolean("enable_new_favorites_tab", false);
+    this.tabTitles = tabTitles;
+    hasActiveVoicemailProvider = hasVoicemailProvider;
+    fragments.addAll(Collections.nCopies(TAB_COUNT_WITH_VOICEMAIL, null));
+  }
+
+  @Override
+  public long getItemId(int position) {
+    return getRtlPosition(position);
+  }
+
+  @Override
+  public Fragment getItem(int position) {
+    LogUtil.d("ViewPagerAdapter.getItem", "position: %d", position);
+    switch (getRtlPosition(position)) {
+      case TAB_INDEX_SPEED_DIAL:
+        if (useNewSpeedDialTab) {
+          if (speedDialFragment == null) {
+            speedDialFragment = SpeedDialFragment.newInstance();
+          }
+          return speedDialFragment;
+        } else {
+          if (oldSpeedDialFragment == null) {
+            oldSpeedDialFragment = new OldSpeedDialFragment();
+          }
+          return oldSpeedDialFragment;
+        }
+      case TAB_INDEX_HISTORY:
+        if (callLogFragment == null) {
+          callLogFragment = new CallLogFragment(CallLogQueryHandler.CALL_TYPE_ALL);
+        }
+        return callLogFragment;
+      case TAB_INDEX_ALL_CONTACTS:
+        if (contactsFragment == null) {
+          contactsFragment = new AllContactsFragment();
+        }
+        return contactsFragment;
+      case TAB_INDEX_VOICEMAIL:
+        if (voicemailFragment == null) {
+          voicemailFragment = new VisualVoicemailCallLogFragment();
+          LogUtil.v(
+              "ViewPagerAdapter.getItem",
+              "new VisualVoicemailCallLogFragment: %s",
+              voicemailFragment);
+        }
+        return voicemailFragment;
+      default:
+        throw Assert.createIllegalStateFailException("No fragment at position " + position);
+    }
+  }
+
+  @Override
+  public Fragment instantiateItem(ViewGroup container, int position) {
+    LogUtil.d("ViewPagerAdapter.instantiateItem", "position: %d", position);
+    // On rotation the FragmentManager handles rotation. Therefore getItem() isn't called.
+    // Copy the fragments that the FragmentManager finds so that we can store them in
+    // instance variables for later.
+    final Fragment fragment = (Fragment) super.instantiateItem(container, position);
+    if (fragment instanceof OldSpeedDialFragment) {
+      oldSpeedDialFragment = (OldSpeedDialFragment) fragment;
+    } else if (fragment instanceof SpeedDialFragment) {
+      speedDialFragment = (SpeedDialFragment) fragment;
+    } else if (fragment instanceof CallLogFragment && position == TAB_INDEX_HISTORY) {
+      callLogFragment = (CallLogFragment) fragment;
+    } else if (fragment instanceof AllContactsFragment) {
+      contactsFragment = (AllContactsFragment) fragment;
+    } else if (fragment instanceof CallLogFragment && position == TAB_INDEX_VOICEMAIL) {
+      voicemailFragment = (CallLogFragment) fragment;
+      LogUtil.v("ViewPagerAdapter.instantiateItem", voicemailFragment.toString());
+    }
+    fragments.set(position, fragment);
+    return fragment;
+  }
+
+  /**
+   * When {@link android.support.v4.view.PagerAdapter#notifyDataSetChanged} is called, this method
+   * is called on all pages to determine whether they need to be recreated. When the voicemail tab
+   * is removed, the view needs to be recreated by returning POSITION_NONE. If notifyDataSetChanged
+   * is called for some other reason, the voicemail tab is recreated only if it is active. All other
+   * tabs do not need to be recreated and POSITION_UNCHANGED is returned.
+   */
+  @Override
+  public int getItemPosition(Object object) {
+    return !hasActiveVoicemailProvider && fragments.indexOf(object) == TAB_INDEX_VOICEMAIL
+        ? POSITION_NONE
+        : POSITION_UNCHANGED;
+  }
+
+  @Override
+  public int getCount() {
+    return hasActiveVoicemailProvider ? TAB_COUNT_WITH_VOICEMAIL : TAB_COUNT_DEFAULT;
+  }
+
+  @Override
+  public CharSequence getPageTitle(@TabIndex int position) {
+    return tabTitles[position];
+  }
+
+  public int getRtlPosition(int position) {
+    if (ViewUtil.isRtl()) {
+      return getCount() - 1 - position;
+    }
+    return position;
+  }
+
+  public void removeVoicemailFragment(FragmentManager manager) {
+    if (voicemailFragment != null) {
+      manager.beginTransaction().remove(voicemailFragment).commitAllowingStateLoss();
+      voicemailFragment = null;
+    }
+  }
+
+  public boolean hasActiveVoicemailProvider() {
+    return hasActiveVoicemailProvider;
+  }
+
+  public void setHasActiveVoicemailProvider(boolean hasActiveVoicemailProvider) {
+    this.hasActiveVoicemailProvider = hasActiveVoicemailProvider;
+  }
+}