Refactor notifications adapter (#985)
* Fix unnecessary reloading of notifications This removes topId as it is not needed and just plainly uses status id if needed. During initial loading of notifications topId/bottomId are not set so we ended up reloading everything. * Refactor notifications adapter Use AsyncListDiffer for updating notifications just like in timelines. * Cleanup in NotificationsFragment
This commit is contained in:
parent
aad2eb4bd0
commit
9c96dea890
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@ -20,11 +20,6 @@ import android.graphics.Color;
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import android.graphics.PorterDuff;
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import android.graphics.Typeface;
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import android.graphics.drawable.Drawable;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.core.content.ContextCompat;
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import androidx.core.text.BidiFormatter;
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import androidx.recyclerview.widget.RecyclerView;
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import android.text.InputFilter;
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import android.text.SpannableStringBuilder;
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import android.text.Spanned;
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@ -53,12 +48,25 @@ import com.keylesspalace.tusky.viewdata.StatusViewData;
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import com.squareup.picasso.Picasso;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Locale;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.core.content.ContextCompat;
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import androidx.core.text.BidiFormatter;
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import androidx.recyclerview.widget.RecyclerView;
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public class NotificationsAdapter extends RecyclerView.Adapter {
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public interface AdapterDataSource<T> {
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int getItemCount();
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T getItemAt(int pos);
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}
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private static final int VIEW_TYPE_MENTION = 0;
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private static final int VIEW_TYPE_STATUS_NOTIFICATION = 1;
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private static final int VIEW_TYPE_FOLLOW = 2;
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@ -67,17 +75,18 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
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private static final InputFilter[] COLLAPSE_INPUT_FILTER = new InputFilter[] { SmartLengthInputFilter.INSTANCE };
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private static final InputFilter[] NO_INPUT_FILTER = new InputFilter[0];
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private List<NotificationViewData> notifications;
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private StatusActionListener statusListener;
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private NotificationActionListener notificationActionListener;
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private boolean mediaPreviewEnabled;
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private boolean useAbsoluteTime;
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private BidiFormatter bidiFormatter;
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private AdapterDataSource<NotificationViewData> dataSource;
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public NotificationsAdapter(StatusActionListener statusListener,
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public NotificationsAdapter(AdapterDataSource<NotificationViewData> dataSource,
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StatusActionListener statusListener,
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NotificationActionListener notificationActionListener) {
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super();
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notifications = new ArrayList<>();
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this.dataSource = dataSource;
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this.statusListener = statusListener;
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this.notificationActionListener = notificationActionListener;
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mediaPreviewEnabled = true;
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@ -115,8 +124,8 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
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@Override
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public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int position) {
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if (position < notifications.size()) {
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NotificationViewData notification = notifications.get(position);
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if (position < this.dataSource.getItemCount()) {
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NotificationViewData notification = dataSource.getItemAt(position);
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if (notification instanceof NotificationViewData.Placeholder) {
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NotificationViewData.Placeholder placeholder = ((NotificationViewData.Placeholder) notification);
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PlaceholderViewHolder holder = (PlaceholderViewHolder) viewHolder;
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@ -170,12 +179,12 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
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@Override
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public int getItemCount() {
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return notifications.size();
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return dataSource.getItemCount();
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}
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@Override
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public int getItemViewType(int position) {
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NotificationViewData notification = notifications.get(position);
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NotificationViewData notification = dataSource.getItemAt(position);
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if (notification instanceof NotificationViewData.Concrete) {
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NotificationViewData.Concrete concrete = ((NotificationViewData.Concrete) notification);
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switch (concrete.getType()) {
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@ -199,36 +208,6 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
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}
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public void update(@Nullable List<NotificationViewData> newNotifications) {
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if (newNotifications == null || newNotifications.isEmpty()) {
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return;
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}
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notifications.clear();
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notifications.addAll(newNotifications);
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notifyDataSetChanged();
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}
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public void updateItemWithNotify(int position, NotificationViewData notification,
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boolean notifyAdapter) {
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notifications.set(position, notification);
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if (notifyAdapter) notifyItemChanged(position);
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}
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public void addItems(List<NotificationViewData> newNotifications) {
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notifications.addAll(newNotifications);
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notifyItemRangeInserted(notifications.size(), newNotifications.size());
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}
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public void removeItemAndNotify(int position) {
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notifications.remove(position);
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notifyItemRemoved(position);
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}
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public void clear() {
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notifications.clear();
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notifyDataSetChanged();
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}
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public void setMediaPreviewEnabled(boolean enabled) {
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mediaPreviewEnabled = enabled;
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}
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@ -58,7 +58,6 @@ import com.keylesspalace.tusky.viewdata.NotificationViewData;
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import com.keylesspalace.tusky.viewdata.StatusViewData;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Objects;
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@ -70,11 +69,16 @@ import androidx.annotation.Nullable;
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import androidx.arch.core.util.Function;
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import androidx.core.util.Pair;
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import androidx.lifecycle.Lifecycle;
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import androidx.recyclerview.widget.AsyncDifferConfig;
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import androidx.recyclerview.widget.AsyncListDiffer;
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import androidx.recyclerview.widget.DiffUtil;
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import androidx.recyclerview.widget.DividerItemDecoration;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.ListUpdateCallback;
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import androidx.recyclerview.widget.RecyclerView;
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import androidx.recyclerview.widget.SimpleItemAnimator;
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import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
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import at.connyduck.sparkbutton.helpers.Utils;
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import io.reactivex.android.schedulers.AndroidSchedulers;
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import kotlin.Unit;
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import kotlin.collections.CollectionsKt;
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@ -94,6 +98,7 @@ public class NotificationsFragment extends SFragment implements
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private static final String TAG = "NotificationF"; // logging tag
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private static final int LOAD_AT_ONCE = 30;
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private int maxPlaceholderId = 0;
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private enum FetchEnd {
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TOP,
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@ -106,13 +111,14 @@ public class NotificationsFragment extends SFragment implements
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* and reuse in different places as needed.
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*/
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private static final class Placeholder {
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private static final Placeholder INSTANCE = new Placeholder();
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final long id;
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public static Placeholder getInstance() {
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return INSTANCE;
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public static Placeholder getInstance(long id) {
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return new Placeholder(id);
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}
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private Placeholder() {
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private Placeholder(long id) {
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this.id = id;
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}
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}
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@ -155,7 +161,7 @@ public class NotificationsFragment extends SFragment implements
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alwaysShowSensitiveMedia
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);
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} else {
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return new NotificationViewData.Placeholder(false);
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return new NotificationViewData.Placeholder(input.asLeft().id, false);
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}
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}
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});
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@ -200,7 +206,7 @@ public class NotificationsFragment extends SFragment implements
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recyclerView.addItemDecoration(new DividerItemDecoration(context, DividerItemDecoration.VERTICAL));
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adapter = new NotificationsAdapter(this, this);
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adapter = new NotificationsAdapter(dataSource, this, this);
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SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
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alwaysShowSensitiveMedia = accountManager.getActiveAccount().getAlwaysShowSensitiveMedia();
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boolean mediaPreviewEnabled = accountManager.getActiveAccount().getMediaPreviewEnabled();
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@ -380,11 +386,9 @@ public class NotificationsFragment extends SFragment implements
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viewDataBuilder.createStatusViewData(), viewdata.isExpanded());
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notifications.setPairedItem(position, newViewData);
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adapter.updateItemWithNotify(position, newViewData, true);
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updateAdapter();
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}
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@Override
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public void onFavourite(final boolean favourite, final int position) {
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final Notification notification = notifications.get(position).asRight();
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@ -417,8 +421,7 @@ public class NotificationsFragment extends SFragment implements
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viewDataBuilder.createStatusViewData(), viewdata.isExpanded());
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notifications.setPairedItem(position, newViewData);
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adapter.updateItemWithNotify(position, newViewData, true);
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updateAdapter();
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}
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@Override
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@ -457,7 +460,7 @@ public class NotificationsFragment extends SFragment implements
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NotificationViewData notificationViewData = new NotificationViewData.Concrete(old.getType(),
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old.getId(), old.getAccount(), statusViewData, expanded);
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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updateAdapter();
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}
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@Override
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@ -471,7 +474,7 @@ public class NotificationsFragment extends SFragment implements
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NotificationViewData notificationViewData = new NotificationViewData.Concrete(old.getType(),
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old.getId(), old.getAccount(), statusViewData, old.isExpanded());
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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updateAdapter();
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}
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@Override
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@ -485,10 +488,11 @@ public class NotificationsFragment extends SFragment implements
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return;
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}
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sendFetchNotificationsRequest(previous.getId(), next.getId(), FetchEnd.MIDDLE, position);
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Placeholder placeholder = notifications.get(position).asLeft();
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NotificationViewData notificationViewData =
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new NotificationViewData.Placeholder(true);
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new NotificationViewData.Placeholder(placeholder.id, true);
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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updateAdapter();
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} else {
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Log.d(TAG, "error loading more");
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}
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concreteNotification.isExpanded()
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);
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notifications.setPairedItem(position, updatedNotification);
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adapter.updateItemWithNotify(position, updatedNotification, false);
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updateAdapter();
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// Since we cannot notify to the RecyclerView right away because it may be scrolling
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// we run this when the RecyclerView is done doing measurements and other calculations.
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@ -582,7 +586,7 @@ public class NotificationsFragment extends SFragment implements
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@Override
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public void removeItem(int position) {
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notifications.remove(position);
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adapter.update(notifications.getPairedCopy());
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updateAdapter();
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}
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private void removeAllByAccountId(String accountId) {
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iterator.remove();
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}
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}
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adapter.update(notifications.getPairedCopy());
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updateAdapter();
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}
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private void onLoadMore() {
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@ -610,16 +614,24 @@ public class NotificationsFragment extends SFragment implements
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if (notifications.size() > 0) {
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Either<Placeholder, Notification> last = notifications.get(notifications.size() - 1);
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if (last.isRight()) {
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notifications.add(new Either.Left(Placeholder.getInstance()));
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NotificationViewData viewData = new NotificationViewData.Placeholder(true);
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final Placeholder placeholder = newPlaceholder();
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notifications.add(new Either.Left<>(placeholder));
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NotificationViewData viewData =
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new NotificationViewData.Placeholder(placeholder.id, true);
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notifications.setPairedItem(notifications.size() - 1, viewData);
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recyclerView.post(() -> adapter.addItems(Collections.singletonList(viewData)));
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updateAdapter();
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}
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}
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sendFetchNotificationsRequest(bottomId, null, FetchEnd.BOTTOM, -1);
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}
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private Placeholder newPlaceholder() {
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Placeholder placeholder = Placeholder.getInstance(maxPlaceholderId);
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maxPlaceholderId--;
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return placeholder;
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}
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private void jumpToTop() {
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layoutManager.scrollToPosition(0);
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scrollListener.reset();
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@ -669,11 +681,6 @@ public class NotificationsFragment extends SFragment implements
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List<HttpHeaderLink> links = HttpHeaderLink.parse(linkHeader);
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switch (fetchEnd) {
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case TOP: {
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HttpHeaderLink previous = HttpHeaderLink.findByRelationType(links, "prev");
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String uptoId = null;
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if (previous != null) {
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uptoId = previous.uri.getQueryParameter("since_id");
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}
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update(notifications, null);
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break;
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}
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@ -691,20 +698,12 @@ public class NotificationsFragment extends SFragment implements
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if (!this.notifications.isEmpty()
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&& !this.notifications.get(this.notifications.size() - 1).isRight()) {
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this.notifications.remove(this.notifications.size() - 1);
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adapter.removeItemAndNotify(this.notifications.size());
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updateAdapter();
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}
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if (adapter.getItemCount() > 0) {
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addItems(notifications, fromId);
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} else {
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/* If this is the first fetch, also save the id from the "previous" link and
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* treat this operation as a refresh so the scroll position doesn't get pushed
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* down to the end. */
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HttpHeaderLink previous = HttpHeaderLink.findByRelationType(links, "prev");
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String uptoId = null;
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if (previous != null) {
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uptoId = previous.uri.getQueryParameter("since_id");
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}
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update(notifications, fromId);
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}
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@ -733,10 +732,11 @@ public class NotificationsFragment extends SFragment implements
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private void onFetchNotificationsFailure(Exception exception, FetchEnd fetchEnd, int position) {
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swipeRefreshLayout.setRefreshing(false);
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if (fetchEnd == FetchEnd.MIDDLE && !notifications.get(position).isRight()) {
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Placeholder placeholder = notifications.get(position).asLeft();
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NotificationViewData placeholderVD =
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new NotificationViewData.Placeholder(false);
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new NotificationViewData.Placeholder(placeholder.id, false);
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notifications.setPairedItem(position, placeholderVD);
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adapter.updateItemWithNotify(position, placeholderVD, true);
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updateAdapter();
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} else if (this.notifications.isEmpty()) {
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this.statusView.setVisibility(View.VISIBLE);
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swipeRefreshLayout.setEnabled(false);
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@ -798,14 +798,14 @@ public class NotificationsFragment extends SFragment implements
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int newIndex = liftedNew.indexOf(notifications.get(0));
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if (newIndex == -1) {
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if (index == -1 && liftedNew.size() >= LOAD_AT_ONCE) {
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liftedNew.add(new Either.Left(Placeholder.getInstance()));
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liftedNew.add(new Either.Left<>(newPlaceholder()));
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}
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notifications.addAll(0, liftedNew);
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} else {
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notifications.addAll(0, liftedNew.subList(0, newIndex));
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}
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}
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adapter.update(notifications.getPairedCopy());
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updateAdapter();
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}
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private void addItems(List<Notification> newNotifications, @Nullable String fromId) {
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@ -818,10 +818,7 @@ public class NotificationsFragment extends SFragment implements
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Either<Placeholder, Notification> last = notifications.get(end - 1);
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if (last != null && liftedNew.indexOf(last) == -1) {
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notifications.addAll(liftedNew);
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List<NotificationViewData> newViewDatas = notifications.getPairedCopy()
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.subList(notifications.size() - newNotifications.size(),
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notifications.size());
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adapter.addItems(newViewDatas);
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updateAdapter();
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}
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}
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@ -830,7 +827,7 @@ public class NotificationsFragment extends SFragment implements
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notifications.remove(pos);
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if (ListUtils.isEmpty(newNotifications)) {
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adapter.update(notifications.getPairedCopy());
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updateAdapter();
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return;
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}
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@ -840,11 +837,11 @@ public class NotificationsFragment extends SFragment implements
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// If we fetched at least as much it means that there are more posts to load and we should
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// insert new placeholder
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if (newNotifications.size() >= LOAD_AT_ONCE) {
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liftedNew.add(new Either.Left(Placeholder.getInstance()));
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liftedNew.add(new Either.Left<>(newPlaceholder()));
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}
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notifications.addAll(pos, liftedNew);
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adapter.update(notifications.getPairedCopy());
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updateAdapter();
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}
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private final Function<Notification, Either<Placeholder, Notification>> notificationLifter =
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@ -855,8 +852,8 @@ public class NotificationsFragment extends SFragment implements
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}
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private void fullyRefresh() {
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adapter.clear();
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notifications.clear();
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updateAdapter();
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sendFetchNotificationsRequest(null, null, FetchEnd.TOP, -1);
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}
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@ -875,4 +872,67 @@ public class NotificationsFragment extends SFragment implements
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}
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return null;
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}
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private void updateAdapter() {
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differ.submitList(notifications.getPairedCopy());
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}
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private final ListUpdateCallback listUpdateCallback = new ListUpdateCallback() {
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@Override
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public void onInserted(int position, int count) {
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if (isAdded()) {
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adapter.notifyItemRangeInserted(position, count);
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Context context = getContext();
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if (position == 0 && context != null) {
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recyclerView.scrollBy(0, Utils.dpToPx(context, -30));
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}
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}
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}
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@Override
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public void onRemoved(int position, int count) {
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adapter.notifyItemRangeRemoved(position, count);
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}
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@Override
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public void onMoved(int fromPosition, int toPosition) {
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adapter.notifyItemMoved(fromPosition, toPosition);
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}
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@Override
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public void onChanged(int position, int count, Object payload) {
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adapter.notifyItemRangeChanged(position, count, payload);
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}
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};
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private final AsyncListDiffer<NotificationViewData>
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differ = new AsyncListDiffer<>(listUpdateCallback,
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new AsyncDifferConfig.Builder<>(diffCallback).build());
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private final NotificationsAdapter.AdapterDataSource<NotificationViewData> dataSource =
|
||||
new NotificationsAdapter.AdapterDataSource<NotificationViewData>() {
|
||||
@Override
|
||||
public int getItemCount() {
|
||||
return differ.getCurrentList().size();
|
||||
}
|
||||
|
||||
@Override
|
||||
public NotificationViewData getItemAt(int pos) {
|
||||
return differ.getCurrentList().get(pos);
|
||||
}
|
||||
};
|
||||
|
||||
private static final DiffUtil.ItemCallback<NotificationViewData> diffCallback
|
||||
= new DiffUtil.ItemCallback<NotificationViewData>() {
|
||||
|
||||
@Override
|
||||
public boolean areItemsTheSame(NotificationViewData oldItem, NotificationViewData newItem) {
|
||||
return oldItem.getViewDataId() == newItem.getViewDataId();
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean areContentsTheSame(NotificationViewData oldItem, NotificationViewData newItem) {
|
||||
return oldItem.deepEquals(newItem);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
|
|
@ -18,11 +18,13 @@ package com.keylesspalace.tusky.viewdata;
|
|||
import com.keylesspalace.tusky.entity.Account;
|
||||
import com.keylesspalace.tusky.entity.Notification;
|
||||
|
||||
import io.reactivex.annotations.NonNull;
|
||||
import java.util.Objects;
|
||||
|
||||
import io.reactivex.annotations.Nullable;
|
||||
|
||||
/**
|
||||
* Created by charlag on 12/07/2017.
|
||||
*
|
||||
* <p>
|
||||
* Class to represent data required to display either a notification or a placeholder.
|
||||
* It is either a {@link Placeholder} or a {@link Concrete}.
|
||||
* It is modelled this way because close relationship between placeholder and concrete notification
|
||||
|
@ -35,16 +37,20 @@ public abstract class NotificationViewData {
|
|||
private NotificationViewData() {
|
||||
}
|
||||
|
||||
public static final class Concrete extends NotificationViewData {
|
||||
public abstract long getViewDataId();
|
||||
|
||||
public abstract boolean deepEquals(NotificationViewData other);
|
||||
|
||||
public static final class Concrete extends NotificationViewData {
|
||||
private final Notification.Type type;
|
||||
private final String id;
|
||||
private final Account account;
|
||||
@NonNull
|
||||
@Nullable
|
||||
private final StatusViewData.Concrete statusViewData;
|
||||
private final boolean isExpanded;
|
||||
|
||||
public Concrete(Notification.Type type, String id, Account account,
|
||||
@NonNull StatusViewData.Concrete statusViewData, boolean isExpanded) {
|
||||
@Nullable StatusViewData.Concrete statusViewData, boolean isExpanded) {
|
||||
this.type = type;
|
||||
this.id = id;
|
||||
this.account = account;
|
||||
|
@ -64,7 +70,7 @@ public abstract class NotificationViewData {
|
|||
return account;
|
||||
}
|
||||
|
||||
@NonNull
|
||||
@Nullable
|
||||
public StatusViewData.Concrete getStatusViewData() {
|
||||
return statusViewData;
|
||||
}
|
||||
|
@ -72,17 +78,56 @@ public abstract class NotificationViewData {
|
|||
public boolean isExpanded() {
|
||||
return isExpanded;
|
||||
}
|
||||
|
||||
@Override
|
||||
public long getViewDataId() {
|
||||
return id.hashCode();
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean deepEquals(NotificationViewData o) {
|
||||
if (this == o) return true;
|
||||
if (o == null || getClass() != o.getClass()) return false;
|
||||
Concrete concrete = (Concrete) o;
|
||||
return isExpanded == concrete.isExpanded &&
|
||||
type == concrete.type &&
|
||||
Objects.equals(id, concrete.id) &&
|
||||
account.getId().equals(concrete.account.getId()) &&
|
||||
(statusViewData == concrete.statusViewData ||
|
||||
statusViewData != null &&
|
||||
statusViewData.deepEquals(concrete.statusViewData));
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
|
||||
return Objects.hash(type, id, account, statusViewData, isExpanded);
|
||||
}
|
||||
}
|
||||
|
||||
public static final class Placeholder extends NotificationViewData {
|
||||
private final long id;
|
||||
private final boolean isLoading;
|
||||
|
||||
public Placeholder(boolean isLoading) {
|
||||
public Placeholder(long id, boolean isLoading) {
|
||||
this.id = id;
|
||||
this.isLoading = isLoading;
|
||||
}
|
||||
|
||||
public boolean isLoading() {
|
||||
return isLoading;
|
||||
}
|
||||
|
||||
@Override
|
||||
public long getViewDataId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean deepEquals(NotificationViewData other) {
|
||||
if (!(other instanceof Placeholder)) return false;
|
||||
Placeholder that = (Placeholder) other;
|
||||
return isLoading == that.isLoading && id == that.id;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue