mirror of
https://github.com/nextcloud/android.git
synced 2024-12-21 08:24:08 +03:00
377 lines
12 KiB
Java
377 lines
12 KiB
Java
/* ownCloud Android client application
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*
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* Copyright (C) 2012-2013 ownCloud Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package com.owncloud.android.ui.preview;
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import java.lang.ref.WeakReference;
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import com.owncloud.android.R;
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import com.owncloud.android.datamodel.OCFile;
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import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
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import com.owncloud.android.ui.fragment.FileFragment;
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import com.owncloud.android.utils.Log_OC;
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import android.accounts.Account;
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import android.app.Activity;
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import android.os.Bundle;
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import android.support.v4.app.FragmentStatePagerAdapter;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.ViewGroup;
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import android.widget.ImageButton;
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import android.widget.ProgressBar;
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import android.widget.TextView;
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import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
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/**
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* This Fragment is used to monitor the progress of a file downloading.
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*
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* @author David A. Velasco
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*/
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public class FileDownloadFragment extends FileFragment implements OnClickListener {
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public static final String EXTRA_FILE = "FILE";
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public static final String EXTRA_ACCOUNT = "ACCOUNT";
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private static final String EXTRA_ERROR = "ERROR";
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private FileFragment.ContainerActivity mContainerActivity;
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private View mView;
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private Account mAccount;
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public ProgressListener mProgressListener;
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private boolean mListening;
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private static final String TAG = FileDownloadFragment.class.getSimpleName();
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private boolean mIgnoreFirstSavedState;
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private boolean mError;
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/**
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* Creates an empty details fragment.
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*
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* It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
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*/
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public FileDownloadFragment() {
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super();
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mAccount = null;
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mProgressListener = null;
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mListening = false;
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mIgnoreFirstSavedState = false;
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mError = false;
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}
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/**
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* Creates a details fragment.
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*
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* When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
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*
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* @param fileToDetail An {@link OCFile} to show in the fragment
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* @param ocAccount An ownCloud account; needed to start downloads
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* @param ignoreFirstSavedState Flag to work around an unexpected behaviour of {@link FragmentStatePagerAdapter}; TODO better solution
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*/
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public FileDownloadFragment(OCFile fileToDetail, Account ocAccount, boolean ignoreFirstSavedState) {
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super(fileToDetail);
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mAccount = ocAccount;
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mProgressListener = null;
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mListening = false;
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mIgnoreFirstSavedState = ignoreFirstSavedState;
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mError = false;
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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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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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super.onCreateView(inflater, container, savedInstanceState);
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if (savedInstanceState != null) {
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if (!mIgnoreFirstSavedState) {
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setFile((OCFile)savedInstanceState.getParcelable(FileDownloadFragment.EXTRA_FILE));
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mAccount = savedInstanceState.getParcelable(FileDownloadFragment.EXTRA_ACCOUNT);
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mError = savedInstanceState.getBoolean(FileDownloadFragment.EXTRA_ERROR);
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} else {
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mIgnoreFirstSavedState = false;
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}
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}
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View view = null;
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view = inflater.inflate(R.layout.file_download_fragment, container, false);
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mView = view;
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ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.progressBar);
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mProgressListener = new ProgressListener(progressBar);
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((ImageButton)mView.findViewById(R.id.cancelBtn)).setOnClickListener(this);
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if (mError) {
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setButtonsForRemote();
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} else {
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setButtonsForTransferring();
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}
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return view;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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try {
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mContainerActivity = (ContainerActivity) activity;
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} catch (ClassCastException e) {
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throw new ClassCastException(activity.toString() + " must implement " + FileFragment.ContainerActivity.class.getSimpleName());
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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if (mAccount != null) {
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//mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());;
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}
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putParcelable(FileDownloadFragment.EXTRA_FILE, getFile());
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outState.putParcelable(FileDownloadFragment.EXTRA_ACCOUNT, mAccount);
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outState.putBoolean(FileDownloadFragment.EXTRA_ERROR, mError);
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}
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@Override
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public void onStart() {
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super.onStart();
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listenForTransferProgress();
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}
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@Override
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public void onResume() {
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super.onResume();
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}
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@Override
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public void onPause() {
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super.onPause();
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}
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@Override
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public void onStop() {
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super.onStop();
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leaveTransferProgress();
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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}
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@Override
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public View getView() {
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if (!mListening) {
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listenForTransferProgress();
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}
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return super.getView() == null ? mView : super.getView();
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}
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@Override
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public void onClick(View v) {
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switch (v.getId()) {
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case R.id.cancelBtn: {
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FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
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if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, getFile())) {
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downloaderBinder.cancel(mAccount, getFile());
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getActivity().finish(); // :)
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/*
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leaveTransferProgress();
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if (mFile.isDown()) {
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setButtonsForDown();
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} else {
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setButtonsForRemote();
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}
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*/
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}
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break;
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}
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default:
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Log_OC.e(TAG, "Incorrect view clicked!");
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}
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}
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/**
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* Updates the view depending upon the state of the downloading file.
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*
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* @param transferring When true, the view must be updated assuming that the holded file is
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* downloading, no matter what the downloaderBinder says.
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*/
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public void updateView(boolean transferring) {
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// configure UI for depending upon local state of the file
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FileDownloaderBinder downloaderBinder = (mContainerActivity == null) ? null : mContainerActivity.getFileDownloaderBinder();
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if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, getFile()))) {
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setButtonsForTransferring();
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} else if (getFile().isDown()) {
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setButtonsForDown();
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} else {
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setButtonsForRemote();
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}
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getView().invalidate();
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}
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/**
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* Enables or disables buttons for a file being downloaded
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*/
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private void setButtonsForTransferring() {
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getView().findViewById(R.id.cancelBtn).setVisibility(View.VISIBLE);
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// show the progress bar for the transfer
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getView().findViewById(R.id.progressBar).setVisibility(View.VISIBLE);
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TextView progressText = (TextView)getView().findViewById(R.id.progressText);
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progressText.setText(R.string.downloader_download_in_progress_ticker);
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progressText.setVisibility(View.VISIBLE);
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// hides the error icon
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getView().findViewById(R.id.errorText).setVisibility(View.GONE);
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getView().findViewById(R.id.error_image).setVisibility(View.GONE);
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}
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/**
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* Enables or disables buttons for a file locally available
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*/
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private void setButtonsForDown() {
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getView().findViewById(R.id.cancelBtn).setVisibility(View.GONE);
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// hides the progress bar
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getView().findViewById(R.id.progressBar).setVisibility(View.GONE);
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// updates the text message
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TextView progressText = (TextView)getView().findViewById(R.id.progressText);
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progressText.setText(R.string.common_loading);
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progressText.setVisibility(View.VISIBLE);
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// hides the error icon
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getView().findViewById(R.id.errorText).setVisibility(View.GONE);
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getView().findViewById(R.id.error_image).setVisibility(View.GONE);
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}
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/**
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* Enables or disables buttons for a file not locally available
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*
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* Currently, this is only used when a download was failed
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*/
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private void setButtonsForRemote() {
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getView().findViewById(R.id.cancelBtn).setVisibility(View.GONE);
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// hides the progress bar and message
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getView().findViewById(R.id.progressBar).setVisibility(View.GONE);
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getView().findViewById(R.id.progressText).setVisibility(View.GONE);
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// shows the error icon and message
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getView().findViewById(R.id.errorText).setVisibility(View.VISIBLE);
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getView().findViewById(R.id.error_image).setVisibility(View.VISIBLE);
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}
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public void listenForTransferProgress() {
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if (mProgressListener != null && !mListening) {
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if (mContainerActivity.getFileDownloaderBinder() != null) {
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mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
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mListening = true;
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setButtonsForTransferring();
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}
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}
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}
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public void leaveTransferProgress() {
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if (mProgressListener != null) {
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if (mContainerActivity.getFileDownloaderBinder() != null) {
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mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
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mListening = false;
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}
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}
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}
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/**
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* Helper class responsible for updating the progress bar shown for file uploading or downloading
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*
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* @author David A. Velasco
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*/
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private class ProgressListener implements OnDatatransferProgressListener {
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int mLastPercent = 0;
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WeakReference<ProgressBar> mProgressBar = null;
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ProgressListener(ProgressBar progressBar) {
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mProgressBar = new WeakReference<ProgressBar>(progressBar);
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}
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@Override
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public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
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int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
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if (percent != mLastPercent) {
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ProgressBar pb = mProgressBar.get();
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if (pb != null) {
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pb.setProgress(percent);
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pb.postInvalidate();
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}
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}
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mLastPercent = percent;
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}
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}
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public void setError(boolean error) {
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mError = error;
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};
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}
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