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Add a snackbar to allow user to undo file deletion

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This commit is contained in:
Kamil Szczęk 2020-01-05 14:01:54 +01:00
parent 986acc5fc5
commit d071891b2a
2 changed files with 49 additions and 4 deletions
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52
app/src/main/java/us/shandian/giga/ui/adapter/MissionAdapter.java
View file

@ -5,6 +5,7 @@ import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
@ -35,6 +36,8 @@ import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.RecyclerView.Adapter;
import androidx.recyclerview.widget.RecyclerView.ViewHolder;
import com.google.android.material.snackbar.Snackbar;
import org.schabi.newpipe.BuildConfig;
import org.schabi.newpipe.R;
import org.schabi.newpipe.extractor.NewPipe;
@ -46,6 +49,7 @@ import java.io.File;
import java.lang.ref.WeakReference;
import java.net.URI;
import java.util.ArrayList;
import java.util.Iterator;
import us.shandian.giga.get.DownloadMission;
import us.shandian.giga.get.FinishedMission;
@ -84,6 +88,7 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
private static final String UNDEFINED_PROGRESS = "--.-%";
private static final String DEFAULT_MIME_TYPE = "*/*";
private static final String UNDEFINED_ETA = "--:--";
private static final int TIMEOUT = 5000;// ms
static {
@ -104,8 +109,12 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
private MenuItem mPauseButton;
private View mEmptyMessage;
private RecoverHelper mRecover;
private View mView;
private ArrayList<Mission> mHidden;
private Snackbar mSnackbar;
private final Runnable rUpdater = this::updater;
private final Runnable rDelete = this::deleteFinishedDownloads;
public MissionAdapter(Context context, @NonNull DownloadManager downloadManager, View emptyMessage, View root) {
mContext = context;
@ -122,6 +131,10 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
mDeleter = new Deleter(root, mContext, this, mDownloadManager, mIterator, mHandler);
mView = root;
mHidden = new ArrayList<>();
checkEmptyMessageVisibility();
onResume();
}
@ -558,18 +571,49 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
}
public void clearFinishedDownloads(boolean delete) {
if (delete && mIterator.hasFinishedMissions()) {
if (delete && mIterator.hasFinishedMissions() && mHidden.isEmpty()) {
for (int i = 0; i < mIterator.getOldListSize(); i++) {
FinishedMission mission = mIterator.getItem(i).mission instanceof FinishedMission ? (FinishedMission) mIterator.getItem(i).mission : null;
if (mission != null) {
mDownloadManager.deleteMission(mission);
mContext.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, mission.storage.getUri()));
mIterator.hide(mission);
mHidden.add(mission);
}
}
applyChanges();
String msg = String.format(mContext.getString(R.string.deleted_downloads), String.valueOf(mHidden.size()));
mSnackbar = Snackbar.make(mView, msg, Snackbar.LENGTH_INDEFINITE);
mSnackbar.setAction(R.string.undo, s -> {
Iterator<Mission> i = mHidden.iterator();
while (i.hasNext()) {
mIterator.unHide(i.next());
i.remove();
}
applyChanges();
mHandler.removeCallbacks(rDelete);
});
mSnackbar.setActionTextColor(Color.YELLOW);
mSnackbar.show();
mHandler.postDelayed(rDelete, TIMEOUT);
} else if (!delete) {
mDownloadManager.forgetFinishedDownloads();
applyChanges();
}
}
private void deleteFinishedDownloads() {
if(mSnackbar != null) mSnackbar.dismiss();
Iterator<Mission> i = mHidden.iterator();
while (i.hasNext()) {
Mission mission = i.next();
if (mission != null) {
mDownloadManager.deleteMission(mission);
mContext.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, mission.storage.getUri()));
}
i.remove();
}
applyChanges();
}
private boolean handlePopupItem(@NonNull ViewHolderItem h, @NonNull MenuItem option) {

1
app/src/main/res/values/strings.xml
View file

@ -588,4 +588,5 @@
<string name="downloads_storage_use_saf_summary">The Storage Access Framework allows downloads to an external SD card.\nNote: some devices are not compatible</string>
<string name="choose_instance_prompt">Choose an instance</string>
<string name="delete_downloaded_files">Delete downloaded files</string>
<string name="deleted_downloads">Deleted %s downloads</string>
</resources>