/***
Copyright (c) 2015-2016 CommonsWare, LLC
Licensed 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.
Covered in detail in the book _The Busy Coder's Guide to Android Development_
https://commonsware.com/Android
*/
package com.commonsware.android.kbmouse.hotkeys;
import android.Manifest;
import android.app.Activity;
import android.app.LoaderManager;
import android.content.ClipData;
import android.content.ContentUris;
import android.content.CursorLoader;
import android.content.Loader;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.StringRes;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.SparseArray;
import android.view.DragEvent;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;
import android.widget.VideoView;
import com.squareup.picasso.Picasso;
public class MainActivity extends Activity implements
LoaderManager.LoaderCallbacks<Cursor>, View.OnDragListener,
View.OnHoverListener, View.OnLongClickListener {
private static final String STATE_IN_PERMISSION="inPermission";
private static final int REQUEST_PERMS=137;
private static final long TOOLTIP_DELAY=1000L;
private RecyclerView videoList;
private VideoView player;
private ImageView thumbnailLarge;
private boolean isInPermission=false;
private VideoAdapter adapter;
private SparseArray<Runnable> hoverTimers=
new SparseArray<>();
private Toast tooltip;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
player=(VideoView)findViewById(R.id.player);
if (player!=null) {
player.setOnDragListener(this);
player.setOnHoverListener(this);
player.setOnLongClickListener(this);
}
thumbnailLarge=(ImageView)findViewById(R.id.thumbnail_large);
if (thumbnailLarge!=null) {
thumbnailLarge.setOnDragListener(this);
thumbnailLarge.setOnHoverListener(this);
thumbnailLarge.setOnLongClickListener(this);
}
setLayoutManager(new LinearLayoutManager(this));
adapter=new VideoAdapter(getRecyclerView());
setAdapter(adapter);
getRecyclerView().requestFocus();
if (icicle!=null) {
isInPermission=
icicle.getBoolean(STATE_IN_PERMISSION, false);
}
if (hasFilesPermission()) {
loadVideos();
}
else if (!isInPermission) {
isInPermission=true;
ActivityCompat.requestPermissions(this,
new String[] {Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_PERMS);
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(STATE_IN_PERMISSION, isInPermission);
adapter.onSaveInstanceState(outState);
}
@Override
public void onRestoreInstanceState(Bundle state) {
adapter.onRestoreInstanceState(state);
}
@Override
public void onRequestPermissionsResult(int requestCode,
String[] permissions,
int[] grantResults) {
isInPermission=false;
if (requestCode==REQUEST_PERMS) {
if (hasFilesPermission()) {
loadVideos();
}
else {
finish(); // denied permission, so we're done
}
}
}
@Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
return (new CursorLoader(this,
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
null, null, null,
MediaStore.Video.Media.TITLE));
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor c) {
((VideoAdapter)getAdapter()).setVideos(c);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
((VideoAdapter)getAdapter()).setVideos(null);
}
@Override
public boolean onDrag(View v, DragEvent event) {
boolean result=true;
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
applyDropHint(v, R.drawable.droppable);
break;
case DragEvent.ACTION_DRAG_ENTERED:
applyDropHint(v, R.drawable.drop);
break;
case DragEvent.ACTION_DRAG_EXITED:
applyDropHint(v, R.drawable.droppable);
break;
case DragEvent.ACTION_DRAG_ENDED:
applyDropHint(v, -1);
break;
case DragEvent.ACTION_DROP:
ClipData.Item clip=event.getClipData().getItemAt(0);
Uri videoUri=clip.getUri();
if (v==player) {
playVideo(videoUri);
}
else {
showLargeThumbnail(videoUri);
}
break;
}
return(result);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode==KeyEvent.KEYCODE_DPAD_RIGHT && event.getRepeatCount()==0) {
int position=adapter.getCheckedPosition();
if (position>=0) {
Uri videoUri=adapter.getVideoUri(position);
if (event.isAltPressed()) {
playVideo(videoUri);
}
else if (event.isCtrlPressed()) {
showLargeThumbnail(videoUri);
}
return(true);
}
}
return(super.onKeyDown(keyCode, event));
}
@Override
public boolean onHover(View v, MotionEvent event) {
if (v==player) {
onHover(event, R.string.tooltip_player, player);
}
else if (v==thumbnailLarge) {
onHover(event, R.string.tooltip_thumbnail, thumbnailLarge);
}
else {
return(false);
}
return(true);
}
@Override
public boolean onLongClick(View v) {
if (v==thumbnailLarge) {
showTooltip(R.string.tooltip_thumbnail);
}
else if (v==player) {
showTooltip(R.string.tooltip_player);
}
else {
return(false);
}
return(true);
}
private void setAdapter(RecyclerView.Adapter adapter) {
getRecyclerView().setAdapter(adapter);
}
private RecyclerView.Adapter getAdapter() {
return(getRecyclerView().getAdapter());
}
private void setLayoutManager(RecyclerView.LayoutManager mgr) {
getRecyclerView().setLayoutManager(mgr);
}
private RecyclerView getRecyclerView() {
if (videoList==null) {
videoList=(RecyclerView)findViewById(R.id.video_list);
}
return(videoList);
}
private void applyDropHint(View v, int drawableId) {
View parent=(View)v.getParent();
if (drawableId>-1) {
parent.setBackgroundResource(drawableId);
}
else {
parent.setBackground(null);
}
}
private boolean hasFilesPermission() {
return(ContextCompat.checkSelfPermission(this,
Manifest.permission.READ_EXTERNAL_STORAGE)==
PackageManager.PERMISSION_GRANTED);
}
private void loadVideos() {
getLoaderManager().initLoader(0, null, this);
}
private void playVideo(Uri videoUri) {
player.setVideoURI(videoUri);
player.start();
}
private void showLargeThumbnail(Uri videoUri) {
Picasso.with(thumbnailLarge.getContext())
.load(videoUri.toString())
.fit().centerCrop()
.placeholder(R.drawable.ic_media_video_poster)
.into(thumbnailLarge);
}
private void onHover(MotionEvent event, @StringRes final int message,
final View anchor) {
Runnable hover=hoverTimers.get(anchor.getId());
if (hover==null &&
(event.getAction()==MotionEvent.ACTION_HOVER_ENTER ||
event.getAction()==MotionEvent.ACTION_HOVER_MOVE)) {
hover=new Runnable() {
@Override
public void run() {
showTooltip(message);
}
};
hoverTimers.put(anchor.getId(), hover);
thumbnailLarge.postDelayed(hover, TOOLTIP_DELAY);
}
else if (hover!=null &&
event.getAction()==MotionEvent.ACTION_HOVER_EXIT) {
thumbnailLarge.removeCallbacks(hover);
hoverTimers.remove(anchor.getId());
}
}
private void showTooltip(@StringRes int message) {
if (tooltip!=null) {
tooltip.cancel();
}
tooltip=Toast.makeText(this, message, Toast.LENGTH_LONG);
tooltip.show();
}
private class VideoAdapter extends ChoiceCapableAdapter<RowController> {
Cursor videos=null;
VideoAdapter(RecyclerView rv) {
super(rv, new SingleChoiceMode());
}
@Override
public RowController onCreateViewHolder(ViewGroup parent,
int viewType) {
return(new RowController(getLayoutInflater()
.inflate(R.layout.row, parent, false)));
}
void setVideos(Cursor videos) {
this.videos=videos;
notifyDataSetChanged();
}
@Override
public void onBindViewHolder(RowController holder, int position) {
videos.moveToPosition(position);
holder.bindModel(videos, isChecked(position));
}
@Override
public int getItemCount() {
if (videos==null) {
return(0);
}
return(videos.getCount());
}
private Uri getVideoUri(int position) {
videos.moveToPosition(position);
return(ContentUris.withAppendedId(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
videos.getInt(videos.getColumnIndex(MediaStore.Video.Media._ID))));
}
}
}