/*
* Copyright (C) 2014 Freddie (Musenkishi) Lust-Hed
*
* 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.
*/
package com.musenkishi.wally.fragments;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.MediaStore;
import android.support.v4.app.FragmentManager;
import android.support.v7.view.ActionMode;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import com.musenkishi.wally.BuildConfig;
import com.musenkishi.wally.R;
import com.musenkishi.wally.activities.MainActivity;
import com.musenkishi.wally.adapters.RecyclerSavedImagesAdapter;
import com.musenkishi.wally.base.GridFragment;
import com.musenkishi.wally.observers.FileReceiver;
import com.musenkishi.wally.util.SparseBooleanArrayParcelable;
import java.util.ArrayList;
import de.psdev.licensesdialog.LicensesDialogFragment;
/**
* SavedImagesFragment is responsible to show the user all the wallpapers that has been saved.
*
* Created by Musenkishi on 2014-05-11.
*/
public class SavedImagesFragment extends GridFragment implements Handler.Callback, ActionMode.Callback {
public static final String TAG = "com.musenkishi.wally.SavedImagesFragment";
private static final String STATE_SELECTED_ITEMS = TAG + ".state.selectedItems";
private static final int GET_IMAGES_FROM_STORAGE = 357;
private static final int SET_IMAGES_TO_ADAPTER = 358;
private static final int UPDATE_ADAPTER = 359;
private ContentObserver contentObserver;
private Handler uiHandler;
private Cursor cursor;
private RecyclerSavedImagesAdapter recyclerSavedImagesAdapter;
private ActionMode actionMode;
private SparseBooleanArrayParcelable selectedItems;
public static SavedImagesFragment newInstance() {
SavedImagesFragment fragment = new SavedImagesFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
setActionBarColor(getResources().getColor(R.color.Actionbar_Saved_Background));
selectedItems = new SparseBooleanArrayParcelable();
if (savedInstanceState != null) {
selectedItems = savedInstanceState.getParcelable(STATE_SELECTED_ITEMS);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
if (rootView != null) {
super.onCreateView(rootView);
setupAutoSizeGridView();
setupHandlers();
showLoader();
}
return rootView;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
gridView.setClipToPadding(false);
setInsets(getActivity(), gridView, false, 0, 0);
}
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
getImages(0, null);
} else {
if (actionMode != null) {
actionMode.finish();
}
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.images_saved, menu);
MenuItem menuItemFilter = menu.findItem(R.id.action_licenses);
if (menuItemFilter != null) {
menuItemFilter.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
final LicensesDialogFragment fragment = LicensesDialogFragment.newInstance(R.raw.notices, false);
fragment.show(getFragmentManager(), null);
return false;
}
});
}
if (!BuildConfig.BUILD_TYPE.equalsIgnoreCase("release")){
menu.add("Wally " + BuildConfig.VERSION_NAME);
}
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public void onResume() {
super.onResume();
getImages(0, null);
initObserver(cursor);
}
@Override
public void onPause() {
if (cursor != null && contentObserver != null) {
cursor.unregisterContentObserver(contentObserver);
}
super.onPause();
}
@Override
public void onSaveInstanceState(Bundle outState) {
if (recyclerSavedImagesAdapter != null) {
outState.putParcelable(STATE_SELECTED_ITEMS, recyclerSavedImagesAdapter.getSelectedItems());
}
super.onSaveInstanceState(outState);
}
private void initObserver(Cursor cursor) {
if (cursor != null) {
if (contentObserver == null) {
contentObserver = new ContentObserver(uiHandler) {
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
getImages(0, null);
}
};
}
try {
cursor.registerContentObserver(contentObserver);
} catch (IllegalStateException e) {
//Oh goodie, it's already registered. Nevermind then.
}
}
}
public String getRealPathFromURI(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] projection = {MediaStore.Images.Media.DATA};
cursor = context.getContentResolver().query(contentUri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
private void setupHandlers() {
uiHandler = new Handler(getActivity().getMainLooper(), this);
}
@Override
protected void getImages(int index, String query) {
if (!uiHandler.hasMessages(GET_IMAGES_FROM_STORAGE)) {
uiHandler.sendEmptyMessage(GET_IMAGES_FROM_STORAGE);
}
}
@Override
public void onDestroy() {
super.onDestroy();
uiHandler.removeCallbacksAndMessages(null);
cursor.close();
}
@Override
public boolean handleMessage(Message msg) {
switch (msg.what) {
case GET_IMAGES_FROM_STORAGE:
if (getActivity() != null) {
String[] projection = {MediaStore.Images.Media._ID};
ContentResolver contentResolver = getActivity().getContentResolver();
Uri mImageUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
cursor = contentResolver.query(
mImageUri,
projection,
MediaStore.Images.Media.DATA + " like ? ",
new String[] {"%/Wally/%"},
MediaStore.Audio.Media.DATE_ADDED + " DESC");
initObserver(cursor);
int what;
if (recyclerSavedImagesAdapter == null) {
what = SET_IMAGES_TO_ADAPTER;
} else {
what = UPDATE_ADAPTER;
}
uiHandler.sendEmptyMessage(what);
}
break;
case SET_IMAGES_TO_ADAPTER:
hideLoader();
recyclerSavedImagesAdapter = new RecyclerSavedImagesAdapter(getFileUrisFromCursor(cursor), itemSize, selectedItems);
gridView.setAdapter(recyclerSavedImagesAdapter);
setupAdapter(recyclerSavedImagesAdapter);
gridView.scheduleLayoutAnimation();
break;
case UPDATE_ADAPTER:
ArrayList<Uri> newFilePaths = getFileUrisFromCursor(cursor);
ArrayList<Uri> oldFilePaths = recyclerSavedImagesAdapter.getData();
recyclerSavedImagesAdapter.setData(newFilePaths);
checkIfAddedOrRemovedItem(oldFilePaths, newFilePaths);
break;
default:
break;
}
return false;
}
private ArrayList<Uri> getFileUrisFromCursor(Cursor cursor) {
ArrayList<Uri> filePaths = new ArrayList<Uri>();
if (cursor != null) {
int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID);
while (cursor.moveToNext()) {
int imageID = cursor.getInt(columnIndex);
Uri uri = Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, Integer.toString(imageID));
filePaths.add(uri);
}
}
return filePaths;
}
private void checkIfAddedOrRemovedItem(ArrayList<Uri> oldList, ArrayList<Uri> newList) {
ArrayList<Uri> oldCompList = new ArrayList<Uri>(oldList);
ArrayList<Uri> newCompList = new ArrayList<Uri>(newList);
oldCompList.removeAll(newList);
if (oldCompList.size() > 0) { //Items removed
recyclerSavedImagesAdapter.notifyItemRangeRemoved(
oldList.indexOf(oldCompList.get(0)),
oldCompList.size()
);
}
newCompList.removeAll(oldList);
if (newCompList.size() > 0) { //Items added
recyclerSavedImagesAdapter.notifyItemRangeInserted(
newList.indexOf(newCompList.get(0)),
newCompList.size()
);
}
}
public void setupAdapter(RecyclerSavedImagesAdapter adapter) {
adapter.setOnItemClickListener(new RecyclerSavedImagesAdapter.OnItemClickListener() {
@Override
public void onClick(View view, int position) {
if (recyclerSavedImagesAdapter.getSelectedItemCount() > 0) {
toggleSelection(position);
} else {
Uri contentUri = recyclerSavedImagesAdapter.getItem(position);
Uri fileUri = Uri.parse("file://" + getRealPathFromURI(view.getContext(), contentUri));
FragmentManager fragmentManager = getFragmentManager();
if (fragmentManager != null) {
ImageZoomFragment imageZoomFragment = ImageZoomFragment.newInstance(fileUri, position);
imageZoomFragment.showFileOptions(fileUri, contentUri);
imageZoomFragment.show(fragmentManager, ImageZoomFragment.TAG);
}
}
}
@Override
public void onLongClick(View view, int position) {
toggleSelection(position);
}
});
toggleActionMode();
}
private void toggleSelection(int position) {
recyclerSavedImagesAdapter.toggleSelection(position);
toggleActionMode();
}
private void toggleActionMode() {
if (recyclerSavedImagesAdapter.getSelectedItemCount() > 0) {
if (actionMode == null) {
actionMode = ((MainActivity) getActivity()).getSupportActionBar().startActionMode(this);
}
actionMode.setTitle(recyclerSavedImagesAdapter.getSelectedItemCount() + " checked");
} else {
if (actionMode != null) {
actionMode.finish();
}
}
}
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
MenuInflater inflater = mode.getMenuInflater();
inflater.inflate(R.menu.saved_images_context, menu);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(final ActionMode mode, MenuItem item) {
if (R.id.menu_delete == item.getItemId()) {
int size = 0;
SparseBooleanArray checkedItems = recyclerSavedImagesAdapter.getSelectedItems();
for (int i = 0; i < checkedItems.size(); i++) {
if (checkedItems.valueAt(i)) {
size++;
}
}
String quantityString = getResources().getQuantityString(R.plurals.wallpapers, size);
String title = String.format(getString(R.string.dialog_delete_title), quantityString);
FragmentManager fragmentManager = getFragmentManager();
if (fragmentManager != null) {
final MaterialDialogFragment materialDialogFragment = new MaterialDialogFragment();
materialDialogFragment.setPrimaryColor(getResources().getColor(R.color.Dialog_Button_Delete));
materialDialogFragment.setTitle(title);
materialDialogFragment.setPositiveButton(R.string.dialog_delete_positive, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
SparseBooleanArray checkedItems = recyclerSavedImagesAdapter.getSelectedItems();
for (int index = 0; index < checkedItems.size(); index++) {
if (checkedItems.valueAt(index)) {
Uri contentUri = recyclerSavedImagesAdapter.getItem(checkedItems.keyAt(index));
getActivity().getContentResolver().delete(contentUri, null, null);
}
}
mode.finish();
getImages(0, null);
getActivity().sendBroadcast(new Intent(FileReceiver.GET_FILES));
}
});
materialDialogFragment.setNegativeButton(R.string.dialog_delete_negative, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
materialDialogFragment.dismiss();
}
});
materialDialogFragment.show(fragmentManager, MaterialDialogFragment.TAG);
}
}
return false;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
recyclerSavedImagesAdapter.clearSelections();
actionMode = null;
}
}