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/*
* Copyright © 2017-2018 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.databinding;
import androidx.databinding.BindingAdapter;
import androidx.databinding.DataBindingUtil;
import androidx.databinding.ObservableList;
import androidx.databinding.ViewDataBinding;
import androidx.databinding.adapters.ListenerUtil;
import androidx.annotation.Nullable;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.text.InputFilter;
import android.view.LayoutInflater;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.wireguard.android.BR;
import com.wireguard.android.R;
import com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler;
import com.wireguard.android.util.ObservableKeyedList;
import com.wireguard.android.widget.ToggleSwitch;
import com.wireguard.android.widget.ToggleSwitch.OnBeforeCheckedChangeListener;
import com.wireguard.config.Attribute;
import com.wireguard.config.InetNetwork;
import com.wireguard.util.Keyed;
import java9.util.Optional;
/**
* Static methods for use by generated code in the Android data binding library.
*/
@SuppressWarnings("unused")
public final class BindingAdapters {
private BindingAdapters() {
// Prevent instantiation.
}
@BindingAdapter("checked")
public static void setChecked(final ToggleSwitch view, final boolean checked) {
view.setCheckedInternal(checked);
}
@BindingAdapter("filter")
public static void setFilter(final TextView view, final InputFilter filter) {
view.setFilters(new InputFilter[]{filter});
}
@BindingAdapter({"items", "layout"})
public static <E>
void setItems(final LinearLayout view,
@Nullable final ObservableList<E> oldList, final int oldLayoutId,
@Nullable final ObservableList<E> newList, final int newLayoutId) {
if (oldList == newList && oldLayoutId == newLayoutId)
return;
ItemChangeListener<E> listener = ListenerUtil.getListener(view, R.id.item_change_listener);
// If the layout changes, any existing listener must be replaced.
if (listener != null && oldList != null && oldLayoutId != newLayoutId) {
listener.setList(null);
listener = null;
// Stop tracking the old listener.
ListenerUtil.trackListener(view, null, R.id.item_change_listener);
}
// Avoid adding a listener when there is no new list or layout.
if (newList == null || newLayoutId == 0)
return;
if (listener == null) {
listener = new ItemChangeListener<>(view, newLayoutId);
ListenerUtil.trackListener(view, listener, R.id.item_change_listener);
}
// Either the list changed, or this is an entirely new listener because the layout changed.
listener.setList(newList);
}
@BindingAdapter({"items", "layout"})
public static <E>
void setItems(final LinearLayout view,
@Nullable final Iterable<E> oldList, final int oldLayoutId,
@Nullable final Iterable<E> newList, final int newLayoutId) {
if (oldList == newList && oldLayoutId == newLayoutId)
return;
view.removeAllViews();
if (newList == null)
return;
final LayoutInflater layoutInflater = LayoutInflater.from(view.getContext());
for (final E item : newList) {
final ViewDataBinding binding =
DataBindingUtil.inflate(layoutInflater, newLayoutId, view, false);
binding.setVariable(BR.collection, newList);
binding.setVariable(BR.item, item);
binding.executePendingBindings();
view.addView(binding.getRoot());
}
}
@BindingAdapter(requireAll = false, value = {"items", "layout", "configurationHandler"})
public static <K, E extends Keyed<? extends K>>
void setItems(final RecyclerView view,
@Nullable final ObservableKeyedList<K, E> oldList, final int oldLayoutId,
final RowConfigurationHandler oldRowConfigurationHandler,
@Nullable final ObservableKeyedList<K, E> newList, final int newLayoutId,
final RowConfigurationHandler newRowConfigurationHandler) {
if (view.getLayoutManager() == null)
view.setLayoutManager(new LinearLayoutManager(view.getContext(), RecyclerView.VERTICAL, false));
if (oldList == newList && oldLayoutId == newLayoutId)
return;
// The ListAdapter interface is not generic, so this cannot be checked.
@SuppressWarnings("unchecked") ObservableKeyedRecyclerViewAdapter<K, E> adapter =
(ObservableKeyedRecyclerViewAdapter<K, E>) view.getAdapter();
// If the layout changes, any existing adapter must be replaced.
if (adapter != null && oldList != null && oldLayoutId != newLayoutId) {
adapter.setList(null);
adapter = null;
}
// Avoid setting an adapter when there is no new list or layout.
if (newList == null || newLayoutId == 0)
return;
if (adapter == null) {
adapter = new ObservableKeyedRecyclerViewAdapter<>(view.getContext(), newLayoutId, newList);
view.setAdapter(adapter);
}
adapter.setRowConfigurationHandler(newRowConfigurationHandler);
// Either the list changed, or this is an entirely new listener because the layout changed.
adapter.setList(newList);
}
@BindingAdapter("onBeforeCheckedChanged")
public static void setOnBeforeCheckedChanged(final ToggleSwitch view,
final OnBeforeCheckedChangeListener listener) {
view.setOnBeforeCheckedChangeListener(listener);
}
@BindingAdapter("android:text")
public static void setText(final TextView view, final Optional<?> text) {
view.setText(text.map(Object::toString).orElse(""));
}
@BindingAdapter("android:text")
public static void setText(final TextView view, @Nullable final Iterable<InetNetwork> networks) {
view.setText(networks != null ? Attribute.join(networks) : "");
}
}
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