2018-02-09 03:48:36 +01:00
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package org.schabi.newpipe.fragments.local.bookmark;
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2018-01-28 07:14:38 +01:00
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import android.os.Bundle;
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2018-01-31 01:01:11 +01:00
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import android.support.v4.app.Fragment;
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2018-01-28 07:14:38 +01:00
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import android.support.v7.app.ActionBar;
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import android.support.v7.widget.LinearLayoutManager;
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import android.support.v7.widget.RecyclerView;
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import android.util.Log;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.View;
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import org.schabi.newpipe.R;
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import org.schabi.newpipe.fragments.BaseStateFragment;
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import org.schabi.newpipe.fragments.list.ListViewContract;
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2018-02-09 03:48:36 +01:00
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import org.schabi.newpipe.fragments.local.LocalItemListAdapter;
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2018-01-28 07:14:38 +01:00
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import static org.schabi.newpipe.util.AnimationUtils.animateView;
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2018-01-31 01:01:11 +01:00
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/**
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* This fragment is design to be used with persistent data such as
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* {@link org.schabi.newpipe.database.LocalItem}, and does not cache the data contained
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* in the list adapter to avoid extra writes when the it exits or re-enters its lifecycle.
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*
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* This fragment destroys its adapter and views when {@link Fragment#onDestroyView()} is
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* called and is memory efficient when in backstack.
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* */
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2018-01-28 07:14:38 +01:00
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public abstract class BaseLocalListFragment<I, N> extends BaseStateFragment<I>
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2018-01-31 01:01:11 +01:00
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implements ListViewContract<I, N> {
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2018-01-28 07:14:38 +01:00
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/*//////////////////////////////////////////////////////////////////////////
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// Views
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//////////////////////////////////////////////////////////////////////////*/
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2018-01-31 01:01:11 +01:00
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protected View headerRootView;
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protected View footerRootView;
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2018-01-28 07:14:38 +01:00
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protected LocalItemListAdapter itemListAdapter;
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protected RecyclerView itemsList;
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/*//////////////////////////////////////////////////////////////////////////
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2018-01-31 01:01:11 +01:00
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// Lifecycle - Creation
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2018-01-28 07:14:38 +01:00
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//////////////////////////////////////////////////////////////////////////*/
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setHasOptionsMenu(true);
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}
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/*//////////////////////////////////////////////////////////////////////////
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2018-01-31 01:01:11 +01:00
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// Lifecycle - View
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2018-01-28 07:14:38 +01:00
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//////////////////////////////////////////////////////////////////////////*/
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protected View getListHeader() {
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return null;
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}
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protected View getListFooter() {
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return activity.getLayoutInflater().inflate(R.layout.pignate_footer, itemsList, false);
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}
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protected RecyclerView.LayoutManager getListLayoutManager() {
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return new LinearLayoutManager(activity);
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}
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@Override
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protected void initViews(View rootView, Bundle savedInstanceState) {
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super.initViews(rootView, savedInstanceState);
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itemsList = rootView.findViewById(R.id.items_list);
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itemsList.setLayoutManager(getListLayoutManager());
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2018-01-31 01:01:11 +01:00
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itemListAdapter = new LocalItemListAdapter(activity);
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itemListAdapter.setHeader(headerRootView = getListHeader());
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itemListAdapter.setFooter(footerRootView = getListFooter());
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2018-01-28 07:14:38 +01:00
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itemsList.setAdapter(itemListAdapter);
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}
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@Override
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protected void initListeners() {
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super.initListeners();
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}
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/*//////////////////////////////////////////////////////////////////////////
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2018-01-31 01:01:11 +01:00
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// Lifecycle - Menu
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2018-01-28 07:14:38 +01:00
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//////////////////////////////////////////////////////////////////////////*/
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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2018-02-08 19:13:29 +01:00
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super.onCreateOptionsMenu(menu, inflater);
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2018-01-31 01:01:11 +01:00
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if (DEBUG) Log.d(TAG, "onCreateOptionsMenu() called with: menu = [" + menu +
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"], inflater = [" + inflater + "]");
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2018-02-08 19:13:29 +01:00
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final ActionBar supportActionBar = activity.getSupportActionBar();
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if (supportActionBar == null) return;
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supportActionBar.setDisplayShowTitleEnabled(true);
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2018-01-28 07:14:38 +01:00
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}
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2018-01-31 01:01:11 +01:00
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/*//////////////////////////////////////////////////////////////////////////
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// Lifecycle - Destruction
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//////////////////////////////////////////////////////////////////////////*/
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@Override
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public void onDestroyView() {
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super.onDestroyView();
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itemsList = null;
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itemListAdapter = null;
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}
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2018-01-28 07:14:38 +01:00
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/*//////////////////////////////////////////////////////////////////////////
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// Contract
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//////////////////////////////////////////////////////////////////////////*/
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2018-01-31 01:01:11 +01:00
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@Override
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public void startLoading(boolean forceLoad) {
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super.startLoading(forceLoad);
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resetFragment();
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}
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2018-01-28 07:14:38 +01:00
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@Override
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public void showLoading() {
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super.showLoading();
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2018-01-31 20:51:47 +01:00
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if (itemsList != null) animateView(itemsList, false, 200);
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2018-01-31 01:01:11 +01:00
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if (headerRootView != null) animateView(headerRootView, false, 200);
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2018-01-28 07:14:38 +01:00
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}
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@Override
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public void hideLoading() {
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super.hideLoading();
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2018-01-31 20:51:47 +01:00
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if (itemsList != null) animateView(itemsList, true, 200);
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2018-01-31 01:01:11 +01:00
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if (headerRootView != null) animateView(headerRootView, true, 200);
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2018-01-28 07:14:38 +01:00
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}
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@Override
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public void showError(String message, boolean showRetryButton) {
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super.showError(message, showRetryButton);
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showListFooter(false);
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2018-01-31 01:01:11 +01:00
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2018-01-31 20:51:47 +01:00
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if (itemsList != null) animateView(itemsList, false, 200);
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2018-01-31 01:01:11 +01:00
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if (headerRootView != null) animateView(headerRootView, false, 200);
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2018-01-28 07:14:38 +01:00
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}
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@Override
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public void showEmptyState() {
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super.showEmptyState();
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showListFooter(false);
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}
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@Override
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public void showListFooter(final boolean show) {
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itemsList.post(() -> itemListAdapter.showFooter(show));
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}
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@Override
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public void handleNextItems(N result) {
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isLoading.set(false);
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}
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2018-01-31 01:01:11 +01:00
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/*//////////////////////////////////////////////////////////////////////////
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// Error handling
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//////////////////////////////////////////////////////////////////////////*/
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protected void resetFragment() {
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if (itemListAdapter != null) itemListAdapter.clearStreamItemList();
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}
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@Override
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protected boolean onError(Throwable exception) {
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resetFragment();
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return super.onError(exception);
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}
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2018-01-28 07:14:38 +01:00
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}
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