/*
* Copyright (C) 2015 Jorge Ruesga
* Copyright (C) 2014 The CyanogenMod Project
*
* 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.ruesga.android.wallpapers.photophase.preferences;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.preference.PreferenceFragment;
import android.support.annotation.NonNull;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
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 android.widget.TextView;
import android.widget.Toast;
import com.ruesga.android.wallpapers.photophase.R;
import com.ruesga.android.wallpapers.photophase.adapters.DispositionAdapter;
import com.ruesga.android.wallpapers.photophase.model.Disposition;
import com.ruesga.android.wallpapers.photophase.model.Dispositions;
import com.ruesga.android.wallpapers.photophase.utils.DispositionUtil;
import com.ruesga.android.wallpapers.photophase.widgets.DispositionView;
import com.ruesga.android.wallpapers.photophase.widgets.DispositionView.OnFrameSelectedListener;
import com.ruesga.android.wallpapers.photophase.widgets.ResizeFrame;
import java.util.ArrayList;
import java.util.List;
/**
* An abstract fragment class that allow to choose the layout disposition of the wallpaper.
*/
public abstract class DispositionFragment extends PreferenceFragment
implements OnFrameSelectedListener, OnPageChangeListener {
private ViewPager mPager;
private DispositionAdapter mAdapter;
private ResizeFrame mResizeFrame;
private TextView mAdvise;
private int mAdviseLines = -1;
private DispositionView mCurrentDispositionView;
private int mCurrentPage;
private int mNumberOfTemplates;
private MenuItem mRestoreMenu;
private MenuItem mDeleteMenu;
private MenuItem mSaveMenu;
private boolean mOkPressed;
/**
* Constructor of <code>DispositionFragment</code>
*/
public DispositionFragment() {
super();
}
/**
* Method that returns the current user preference for the disposition
*
* @return List<Disposition> The current user preference dispositions
*/
public abstract List<Disposition> getCurrentDispositions();
/**
* Method that returns the default preference for the disposition
*
* @return List<Disposition> The default preference dispositions
*/
public abstract List<Disposition> getDefaultDispositions();
/**
* Method that returns the system-defined dispositions templates
*
* @return String[] The system-defined dispositions templates
*/
public abstract String[] getDispositionsTemplates();
/**
* Method that request to save the dispositions
*
* @param dispositions The dispositions to save
*/
public abstract void saveDispositions(List<Disposition> dispositions);
/**
* Method that returns the user saved dispositions
*
* @return List<Disposition> The user saved dispositions
*/
public abstract List<List<Disposition>> getUserDispositions();
/**
* Method that request to save a user saved disposition
*
* @param disposition The disposition to save
*/
public abstract void saveUserDisposition(List<Disposition> disposition);
/**
* Method that request to delete a user saved disposition
*
* @param position The position to delete
*/
public abstract void deleteUserDisposition(int position);
/**
* Method that returns the number of rows to use
*
* @return int The number of rows
*/
public abstract int getRows();
/**
* Method that returns the number of columns to use
*
* @return int The number of columns
*/
public abstract int getCols();
/**
* {@inheritDoc}
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Change the preference manager
getPreferenceManager().setSharedPreferencesName(PreferencesProvider.PREFERENCES_FILE);
getPreferenceManager().setSharedPreferencesMode(Context.MODE_PRIVATE);
mOkPressed = false;
setHasOptionsMenu(true);
}
@Override
public void onDestroyView() {
super.onDestroyView();
mPager.removeOnPageChangeListener(this);
}
/**
* {@inheritDoc}
*/
@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
ViewGroup v = (ViewGroup)inflater.inflate(R.layout.choose_disposition_fragment,
container, false);
mCurrentPage = 0;
mNumberOfTemplates = getDispositionsTemplates().length;
mAdvise = (TextView)v.findViewById(R.id.advise);
mResizeFrame = (ResizeFrame)v.findViewById(R.id.resize_frame);
mAdapter = new DispositionAdapter(getActivity(), getAllDispositions(), mResizeFrame, this);
mPager = (ViewPager) v.findViewById(R.id.dispositions_pager);
mPager.setAdapter(mAdapter);
mPager.addOnPageChangeListener(this);
mPager.setCurrentItem(0);
return v;
}
/**
* {@inheritDoc}
*/
@Override
public void onPause() {
// Saved ?
if (mOkPressed) {
boolean saved = false;
if (mCurrentDispositionView == null) {
mCurrentDispositionView = mAdapter.getView(0);
}
if (mCurrentDispositionView != null) {
if (mCurrentPage != 0 || mCurrentDispositionView.isChanged()) {
saveDispositions(mCurrentDispositionView.getDispositions());
saved = true;
}
// Notify that the settings was changed
Intent intent = new Intent(PreferencesProvider.ACTION_SETTINGS_CHANGED);
if (saved) {
intent.putExtra(PreferencesProvider.EXTRA_FLAG_REDRAW, Boolean.TRUE);
intent.putExtra(PreferencesProvider.EXTRA_FLAG_RECREATE_WORLD, Boolean.TRUE);
}
getActivity().sendBroadcast(intent);
}
}
super.onPause();
}
/**
* {@inheritDoc}
*/
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.dispositions, menu);
mRestoreMenu = menu.findItem(R.id.mnu_restore);
mSaveMenu = menu.findItem(R.id.mnu_save);
mDeleteMenu = menu.findItem(R.id.mnu_delete);
mDeleteMenu.setVisible(false);
}
/**
* {@inheritDoc}
*/
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.mnu_ok:
mOkPressed = true;
getActivity().finish();
return true;
case R.id.mnu_restore:
restoreData();
return true;
case R.id.mnu_save:
addCurrentToSaved();
return true;
case R.id.mnu_delete:
if (mPager.getCurrentItem() > 0) {
deleteCurrentSaved();
} else {
deleteFrame();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/**
* Method that restores the disposition view to the default state
*/
private void restoreData() {
if (mCurrentDispositionView == null) {
mCurrentDispositionView = mAdapter.getView(0);
}
mCurrentDispositionView.setDispositions(getCurrentDispositions(), getCols(), getRows(), true);
}
/**
* Method that restores the disposition view to the default state
*/
private void deleteFrame() {
mCurrentDispositionView = mAdapter.getView(0);
mCurrentDispositionView.deleteCurrentFrame();
}
/**
* Method that returns the system-defined dispositions templates
*
* @return List<Dispositions> All the system-defined dispositions templates
*/
public List<Dispositions> getAllDispositions() {
final int rows = getRows();
final int cols = getCols();
List<Dispositions> allDispositions = new ArrayList<>();
allDispositions.add(new Dispositions(
Dispositions.TYPE_CURRENT, getCurrentDispositions(), rows, cols));
allDispositions.addAll(getSavedDispositions(rows, cols));
allDispositions.addAll(getSystemDefinedDispositions(rows, cols));
return allDispositions;
}
/**
* Method that returns the user-saved dispositions
*
* @param rows The number of rows
* @param cols The number of columns
* @return List<Dispositions> All the user-saved dispositions
*/
private List<Dispositions> getSavedDispositions(int rows, int cols) {
List<List<Disposition>> saved = getUserDispositions();
List<Dispositions> savedDispositions = new ArrayList<>(saved.size());
for (List<Disposition> d : saved) {
savedDispositions.add(new Dispositions(Dispositions.TYPE_SAVED, d, rows, cols));
}
return savedDispositions;
}
/**
* Method that returns the system-defined dispositions templates
*
* @param rows The number of rows
* @param cols The number of columns
* @return List<Dispositions> All the system-defined dispositions templates
*/
private List<Dispositions> getSystemDefinedDispositions(int rows, int cols) {
String[] templates = getDispositionsTemplates();
List<Dispositions> systemDispositions = new ArrayList<>(templates.length);
for (String template : templates) {
systemDispositions.add(new Dispositions(Dispositions.TYPE_SYSTEM,
DispositionUtil.toDispositions(template), rows, cols));
}
return systemDispositions;
}
/**
* {@inheritDoc}
*/
@Override
public void onFrameSelectedListener(View v) {
if (mDeleteMenu != null) {
mDeleteMenu.setVisible(true);
}
}
/**
* {@inheritDoc}
*/
@Override
public void onFrameUnselectedListener() {
if (mDeleteMenu != null) {
mDeleteMenu.setVisible(mAdapter.getView(mPager.getCurrentItem()).isSaved());
}
}
/**
* {@inheritDoc}
*/
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
// Ignored
}
/**
* {@inheritDoc}
*/
@Override
public void onPageSelected(int position) {
// Save state
mCurrentPage = position;
mCurrentDispositionView = mAdapter.getView(position);
mCurrentDispositionView.deselectCurrentFrame();
// Enable/Disable menus
if (mRestoreMenu != null) {
mRestoreMenu.setVisible(position == 0);
}
if (mDeleteMenu != null) {
mDeleteMenu.setVisible(mAdapter.getView(position).isSaved());
}
if (mSaveMenu != null) {
mSaveMenu.setVisible(position == 0);
}
// Set the title
if (position == 0) {
mAdvise.setText(getString(R.string.pref_disposition_description));
} else {
if (mAdviseLines == -1) {
mAdviseLines = mAdvise.getLineCount();
mAdvise.setLines(mAdviseLines);
}
int saved = mAdapter.getCountOfSavedDispositions();
if (position <= saved) {
mAdvise.setText(getString(R.string.pref_disposition_saved,
String.valueOf(position), String.valueOf(saved)));
} else {
mAdvise.setText(getString(R.string.pref_disposition_template,
String.valueOf(position - saved), String.valueOf(mNumberOfTemplates)));
}
}
}
/**
* {@inheritDoc}
*/
@Override
public void onPageScrollStateChanged(int state) {
if (state != ViewPager.SCROLL_STATE_IDLE && mDeleteMenu != null) {
mDeleteMenu.setVisible(false);
}
mResizeFrame.setVisibility(View.GONE);
}
private void deleteCurrentSaved() {
int current = mPager.getCurrentItem();
deleteUserDisposition(current - 1);
mAdapter.deleteUserDisposition(current);
mPager.setCurrentItem(current - 1);
mPager.setAdapter(mAdapter);
Toast.makeText(getActivity(), R.string.saved_dispositions_delete_success,
Toast.LENGTH_SHORT).show();
}
private void addCurrentToSaved() {
List<Disposition> current = mAdapter.getView(0).getDispositions();
if (getUserDispositions().contains(current)) {
Toast.makeText(getActivity(), R.string.saved_dispositions_save_exists,
Toast.LENGTH_SHORT).show();
return;
}
Dispositions dispositions = new Dispositions(Dispositions.TYPE_SAVED,
current, getRows(), getCols());
saveUserDisposition(current);
mAdapter.addUserDisposition(dispositions);
mPager.setAdapter(mAdapter);
Toast.makeText(getActivity(), R.string.saved_dispositions_save_success,
Toast.LENGTH_SHORT).show();
}
}