+/* ownCloud Android client application
+ *
+ * Copyright (C) 2012-2013 ownCloud Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.owncloud.android.ui.preview;
+
+import java.lang.ref.WeakReference;
+
+import android.accounts.Account;
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.actionbarsherlock.app.SherlockFragment;
+import com.owncloud.android.datamodel.FileDataStorageManager;
+import com.owncloud.android.datamodel.OCFile;
+import com.owncloud.android.files.services.FileDownloader;
+import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
+import com.owncloud.android.ui.fragment.FileFragment;
+import com.owncloud.android.ui.fragment.FileFragment.ContainerActivity;
+
+import com.owncloud.android.R;
+
+import eu.alefzero.webdav.OnDatatransferProgressListener;
+
+/**
+ * This Fragment is used to monitor the progress of a file downloading.
+ *
+ * @author David A. Velasco
+ */
+public class FileDownloadFragment extends SherlockFragment implements OnClickListener,FileFragment {
+
+ public static final String EXTRA_FILE = "FILE";
+ public static final String EXTRA_ACCOUNT = "ACCOUNT";
+
+ private FileFragment.ContainerActivity mContainerActivity;
+
+ private View mView;
+ private OCFile mFile;
+ private Account mAccount;
+ private FileDataStorageManager mStorageManager;
+
+ private DownloadFinishReceiver mDownloadFinishReceiver;
+ public ProgressListener mProgressListener;
+ private boolean mListening;
+
+ private static final String TAG = FileDownloadFragment.class.getSimpleName();
+
+
+ /**
+ * Creates an empty details fragment.
+ *
+ * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
+ */
+ public FileDownloadFragment() {
+ mFile = null;
+ mAccount = null;
+ mStorageManager = null;
+ mProgressListener = null;
+ mListening = false;
+ }
+
+
+ /**
+ * Creates a details fragment.
+ *
+ * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
+ *
+ * @param fileToDetail An {@link OCFile} to show in the fragment
+ * @param ocAccount An ownCloud account; needed to start downloads
+ */
+ public FileDownloadFragment(OCFile fileToDetail, Account ocAccount) {
+ mFile = fileToDetail;
+ mAccount = ocAccount;
+ mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
+ mProgressListener = null;
+ mListening = false;
+ }
+
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ Log.e(TAG, "PREVIEW_DOWNLOAD_FRAGMENT ONCREATE " + ((mFile == null)? "(NULL)" : mFile.getFileName()));
+ }
+
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ super.onCreateView(inflater, container, savedInstanceState);
+
+ if (savedInstanceState != null) {
+ mFile = savedInstanceState.getParcelable(FileDownloadFragment.EXTRA_FILE);
+ mAccount = savedInstanceState.getParcelable(FileDownloadFragment.EXTRA_ACCOUNT);
+ }
+
+ if(mFile != null && mAccount != null) {
+ //mLayout = R.layout.file_details_fragment;
+ }
+
+ View view = null;
+ view = inflater.inflate(R.layout.file_download_fragment, container, false);
+ mView = view;
+
+ ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.progressBar);
+ mProgressListener = new ProgressListener(progressBar);
+
+ return view;
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onAttach(Activity activity) {
+ super.onAttach(activity);
+ Log.e(TAG, "PREVIEW_DOWNLOAD_FRAGMENT ONATTACH " + ((mFile == null)?" (NULL)":mFile.getFileName()));
+ try {
+ mContainerActivity = (ContainerActivity) activity;
+
+ } catch (ClassCastException e) {
+ throw new ClassCastException(activity.toString() + " must implement " + FileFragment.ContainerActivity.class.getSimpleName());
+ }
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onActivityCreated(Bundle savedInstanceState) {
+ super.onActivityCreated(savedInstanceState);
+ Log.e(TAG, "PREVIEW_DOWNLOAD_FRAGMENT ONACTIVITYCREATED " + ((mFile == null)?" (NULL)":mFile.getFileName()));
+ if (mAccount != null) {
+ mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());;
+ }
+ }
+
+
+ @Override
+ public void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ outState.putParcelable(FileDownloadFragment.EXTRA_FILE, mFile);
+ outState.putParcelable(FileDownloadFragment.EXTRA_ACCOUNT, mAccount);
+ }
+
+ @Override
+ public void onStart() {
+ super.onStart();
+ Log.e(TAG, "FILE_DOWNLOAD_FRAGMENT ONSTART " + mFile.getFileName());
+ listenForTransferProgress();
+ }
+
+ @Override
+ public void onResume() {
+ Log.e(TAG, "PREVIEW_DOWNLOAD_FRAGMENT ONRESUME " + mFile.getFileName());
+ super.onResume();
+
+ mDownloadFinishReceiver = new DownloadFinishReceiver();
+ IntentFilter filter = new IntentFilter(
+ FileDownloader.DOWNLOAD_FINISH_MESSAGE);
+ getActivity().registerReceiver(mDownloadFinishReceiver, filter);
+ }
+
+
+ @Override
+ public void onPause() {
+ super.onPause();
+ Log.e(TAG, "PREVIEW_DOWNLOAD_FRAGMENT ONPAUSE " + mFile.getFileName());
+
+ getActivity().unregisterReceiver(mDownloadFinishReceiver);
+ mDownloadFinishReceiver = null;
+ }
+
+
+ @Override
+ public void onStop() {
+ super.onStop();
+ Log.e(TAG, "FILE_DOWNLOAD_FRAGMENT ONSTOP " + mFile.getFileName());
+ leaveTransferProgress();
+ }
+
+ @Override
+ public void onDestroy() {
+ super.onDestroy();
+ Log.e(TAG, "FILE_DOWNLOAD_FRAGMENT ONDESTROY " + mFile.getFileName());
+ }
+
+
+ @Override
+ public View getView() {
+ if (!mListening) {
+ listenForTransferProgress();
+ }
+ return super.getView() == null ? mView : super.getView();
+ }
+
+
+ @Override
+ public void onClick(View v) {
+ switch (v.getId()) {
+ case R.id.cancelBtn: {
+ FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
+ if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) {
+ downloaderBinder.cancel(mAccount, mFile);
+ if (mFile.isDown()) {
+ setButtonsForDown();
+ } else {
+ setButtonsForRemote();
+ }
+ }
+ break;
+ }
+ default:
+ Log.e(TAG, "Incorrect view clicked!");
+ }
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ public OCFile getFile(){
+ return mFile;
+ }
+
+
+ /**
+ * Updates the view depending upon the state of the downloading file.
+ *
+ * @param transferring When true, the view must be updated assuming that the holded file is
+ * downloading, no matter what the downloaderBinder says.
+ */
+ public void updateView(boolean transferring) {
+ // configure UI for depending upon local state of the file
+ FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
+ if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile))) {
+ setButtonsForTransferring();
+
+ } else if (mFile.isDown()) {
+
+ setButtonsForDown();
+
+ } else {
+ setButtonsForRemote();
+ }
+ getView().invalidate();
+ }
+
+
+ /**
+ * Enables or disables buttons for a file being downloaded
+ */
+ private void setButtonsForTransferring() {
+ Button downloadButton = (Button) getView().findViewById(R.id.cancelBtn);
+ downloadButton.setText(R.string.common_cancel);
+
+ // show the progress bar for the transfer
+ ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.progressBar);
+ progressBar.setVisibility(View.VISIBLE);
+ TextView progressText = (TextView)getView().findViewById(R.id.progressText);
+ progressText.setText(R.string.downloader_download_in_progress_ticker);
+ }
+
+
+ /**
+ * Enables or disables buttons for a file locally available
+ */
+ private void setButtonsForDown() {
+ Button downloadButton = (Button) getView().findViewById(R.id.cancelBtn);
+ downloadButton.setVisibility(View.GONE);
+
+ // hides the progress bar
+ ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.progressBar);
+ progressBar.setVisibility(View.GONE);
+
+ // updates the text message
+ TextView progressText = (TextView)getView().findViewById(R.id.progressText);
+ progressText.setText(R.string.common_loading);
+ }
+
+
+ /**
+ * Enables or disables buttons for a file not locally available
+ */
+ private void setButtonsForRemote() {
+ Button downloadButton = (Button) getView().findViewById(R.id.cancelBtn);
+ downloadButton.setVisibility(View.GONE);
+ //downloadButton.setText(R.string.filedetails_download);
+
+ // hides the progress bar
+ ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.progressBar);
+ progressBar.setVisibility(View.GONE);
+
+ // updates the text message
+ TextView progressText = (TextView)getView().findViewById(R.id.progressText);
+ progressText.setText(R.string.downloader_not_downloaded_yet);
+ }
+
+
+ /**
+ * Once the file download has finished -> update view
+ */
+ private class DownloadFinishReceiver extends BroadcastReceiver {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
+ if (accountName.equals(mAccount.name)) {
+ boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
+ String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
+ if (mFile.getRemotePath().equals(downloadedRemotePath)) {
+ if (downloadWasFine) {
+ mFile = mStorageManager.getFileByPath(downloadedRemotePath);
+ }
+ updateView(false);
+ getActivity().removeStickyBroadcast(intent);
+ mContainerActivity.notifySuccessfulDownload(mFile, intent, downloadWasFine);
+ }
+ }
+ }
+ }
+
+
+ public void listenForTransferProgress() {
+ if (mProgressListener != null && !mListening) {
+ if (mContainerActivity.getFileDownloaderBinder() != null) {
+ mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, mFile);
+ mListening = true;
+ setButtonsForTransferring();
+ }
+ }
+ }
+
+
+ public void leaveTransferProgress() {
+ if (mProgressListener != null) {
+ if (mContainerActivity.getFileDownloaderBinder() != null) {
+ mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, mFile);
+ }
+ }
+ }
+
+
+ /**
+ * Helper class responsible for updating the progress bar shown for file uploading or downloading
+ *
+ * @author David A. Velasco
+ */
+ private class ProgressListener implements OnDatatransferProgressListener {
+ int mLastPercent = 0;
+ WeakReference<ProgressBar> mProgressBar = null;
+
+ ProgressListener(ProgressBar progressBar) {
+ mProgressBar = new WeakReference<ProgressBar>(progressBar);
+ }
+
+ @Override
+ public void onTransferProgress(long progressRate) {
+ // old method, nothing here
+ };
+
+ @Override
+ public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
+ int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
+ if (percent != mLastPercent) {
+ ProgressBar pb = mProgressBar.get();
+ if (pb != null) {
+ pb.setProgress(percent);
+ pb.postInvalidate();
+ }
+ }
+ mLastPercent = percent;
+ }
+
+ };
+
+
+
+}
projects / pub / Android / ownCloud.git / commitdiff