/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.doplgangr.secrecy.Views;
import android.content.Context;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ViewAnimator;
import com.doplgangr.secrecy.CustomApp;
import com.doplgangr.secrecy.FileSystem.File;
import com.doplgangr.secrecy.Jobs.ThumbnailLoadJob;
import com.doplgangr.secrecy.R;
import com.ipaulpro.afilechooser.utils.FileUtils;
import java.util.ArrayList;
import java.util.Comparator;
import de.greenrobot.event.EventBus;
class FilesListAdapter extends ArrayAdapter<File> {
// store the context (as an inflated layout)
private final LayoutInflater inflater;
// store the resource (typically file_item.xml)
private final int resource;
private final ArrayList<ViewNIndex> checked = new ArrayList<ViewNIndex>();
private boolean isGallery;
// store (a reference to) the data
private ArrayList<File> data = new ArrayList<File>();
public FilesListAdapter(Context context, int layout) {
super(context, layout, new ArrayList<File>());
this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.resource = layout;
this.isGallery = (layout == R.layout.gallery_item);
if (!EventBus.getDefault().isRegistered(this))
EventBus.getDefault().register(this);
}
/**
* Add data to data set.
*/
public void add(File file) {
if (file == null)
return;
if (file.getName() == null)
return;
if (isGallery) {
String mimeType = FileUtils.getMimeType(file.getFile());
if (mimeType != null)
if (!mimeType.contains("image"))
return; //abort if not images.
}
if (!data.contains(file))
data.add(file);
notifyDataSetChanged();
}
/**
* Add data to data set.
*/
public void remove(int position) {
data.remove(position);
notifyDataSetChanged();
}
/**
* Return the size of the data set.
*/
public int getCount() {
return this.data.size();
}
/**
* Return if index is in data set.
*/
public boolean hasIndex(int position) {
return this.data.size() > position && position > -1;
}
/**
* Return an object in the data set.
*/
public File getItem(int position) {
return this.data.get(position);
}
/**
* Return the position provided.
*/
public int getItemId(File file) {
return data.indexOf(file);
}
/**
* Return a generated view for a position.
*/
public void update(ArrayList<File> data) {
this.data = data;
checked.clear();
}
public View getView(File file, View convertView, ViewGroup parent) {
int position = data.indexOf(file);
return getView(position, convertView, parent);
}
public View getView(int position, View convertView, ViewGroup parent) {
// reuse a given view, or inflate a new one from the xml
View view;
if (convertView == null) {
view = this.inflater.inflate(resource, parent, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.name = (TextView) view.findViewById(R.id.name);
viewHolder.type = (TextView) view.findViewById(R.id.type);
viewHolder.size = (TextView) view.findViewById(R.id.size);
viewHolder.date = (TextView) view.findViewById(R.id.date);
viewHolder.thumbnail = (ImageView) view.findViewById(R.id.thumbNail);
viewHolder.frame = (FrameLayout) view.findViewById(R.id.frame);
viewHolder.animator = (ViewAnimator) view.findViewById(R.id.viewAnimator);
viewHolder.selected = false;
viewHolder.page = 0;
view.setTag(viewHolder);
} else {
view = convertView;
ViewHolder viewHolder = (ViewHolder) view.getTag();
viewHolder.selected = false;
for (ViewNIndex obj : checked)
if (obj.index == position)
viewHolder.selected = true;
}
// bind the data to the view object
return this.bindData(view, position);
}
/**
* Bind the provided data to the view.
* This is the only method not required by base adapter.
*/
View bindData(final View view, int position) {
final ViewHolder viewHolder = (ViewHolder) view.getTag();
// make sure it's worth drawing the view
if (position >= this.data.size()) // To prevent out of bound exception
return view;
if (this.data.get(position) == null)
return view;
// pull out the object
final File file = this.data.get(position);
if (viewHolder.name != null)
viewHolder.name.setText(file.getName());
if (viewHolder.type != null)
viewHolder.type.setText(file.getType());
if (viewHolder.size != null)
viewHolder.size.setText(file.getSize());
if (viewHolder.date != null)
viewHolder.date.setText(file.getTimestamp());
if (viewHolder.thumbnail != null) {
viewHolder.thumbnail.setVisibility(View.GONE);
viewHolder.thumbnail.setTag(file.getName());
}
if (viewHolder.frame != null)
viewHolder.frame.setForeground(
viewHolder.selected ?
getContext().getResources().getDrawable(R.drawable.file_selector) :
null);
if (viewHolder.animator != null)
viewHolder.animator.setDisplayedChild(viewHolder.page);
final int avatar_size = (int) CustomApp.context.getResources().getDimension(R.dimen.list_item_avatar_size);
// This class is for binding thumbnail to UI
class BindImageTask extends AsyncTask<File, Void, Bitmap> {
protected Bitmap doInBackground(File... files) {
if (isGallery)
return files[0].getThumb(100);
return files[0].getThumb(avatar_size); // async decrypt thumbnail
}
protected void onPostExecute(Bitmap thumbnail) {
String name = (String) viewHolder.thumbnail.getTag();
if (name.equals(file.getName()) && (thumbnail != null) && (viewHolder.thumbnail != null)) {
viewHolder.thumbnail.setImageBitmap(thumbnail); // bind thumbnail in UI thread
viewHolder.thumbnail.setVisibility(View.VISIBLE);
}
}
}
new BindImageTask().execute(file);
// return the final view object
return view;
}
public void onEventMainThread(ThumbnailLoadJob.ThumbLoadDoneEvent event) {
try {
String name = (String) event.imageView.getTag();
if (name.equals(event.file.getName()) && (event.bitmap != null) && (event.imageView != null)) {
event.imageView.setImageBitmap(event.bitmap); // bind thumbnail in UI thread
event.imageView.setVisibility(View.VISIBLE);
}
} catch (OutOfMemoryError ignored) {
}
}
public Boolean select(int position, View view) {
ViewNIndex object = new ViewNIndex(position, view);
for (ViewNIndex obj : checked)
if (position == obj.index) {
checked.remove(checked.indexOf(obj));
return false;
}
checked.add(object);
return true;
}
public ArrayList<ViewNIndex> getSelected() {
return checked;
}
public void clearSelected() {
checked.clear();
}
public void clear() {
data.clear();
}
public void sort() {
this.sort(new Comparator<File>() {
@Override
public int compare(com.doplgangr.secrecy.FileSystem.File file, com.doplgangr.secrecy.FileSystem.File file2) {
return file.getName().compareTo(file2.getName());
}
});
notifyDataSetChanged();
}
static class ViewHolder {
public TextView name;
public TextView type;
public TextView size;
public TextView date;
public ImageView thumbnail;
public FrameLayout frame;
public Boolean selected;
public ViewAnimator animator;
public int page;
}
static class ViewNIndex {
public Integer index;
public View view;
public ViewNIndex(Integer index, View view) {
this.index = index;
this.view = view;
}
}
}