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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package org.libreoffice.impressremote.activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import org.libreoffice.impressremote.adapter.ComputersPagerAdapter;
import org.libreoffice.impressremote.fragment.ComputersFragment;
import org.libreoffice.impressremote.util.BluetoothOperator;
import org.libreoffice.impressremote.util.Fragments;
import org.libreoffice.impressremote.util.Intents;
import org.libreoffice.impressremote.R;
import org.libreoffice.impressremote.util.Preferences;
import org.libreoffice.impressremote.util.SavedStates;
public class ComputersActivity extends ActionBarActivity implements ActionBar.TabListener, ViewPager.OnPageChangeListener {
private boolean mBluetoothWasEnabled;
@Override
protected void onCreate(Bundle aSavedInstanceState) {
super.onCreate(aSavedInstanceState);
saveBluetoothState(aSavedInstanceState);
BluetoothOperator.enable();
// Looks hacky but it seems to be the best way to set activity’s title
// different to application’s label. The other way is setting title
// to intents filter but it shows wrong label for recent apps screen then.
ActionBar aActionBar = getSupportActionBar();
aActionBar.setTitle(R.string.title_computers);
aActionBar.setDisplayShowTitleEnabled(true);
if (BluetoothOperator.isAvailable()) {
setUpComputersLists();
}
else {
Fragment aComputersFragment = ComputersFragment.newInstance(ComputersFragment.Type.WIFI);
Fragments.Operator.add(this, aComputersFragment);
}
}
private void saveBluetoothState(Bundle aSavedInstanceState) {
// In more ideal world this work should be done at the service.
// Unfortunately service cannot save or restore its state.
// On other hand we should remember Bluetooth state exactly
// after the app’s start and pass it during recreation cycle.
if (!BluetoothOperator.isAvailable()) {
return;
}
mBluetoothWasEnabled = wasBluetoothEnabled(aSavedInstanceState);
}
private boolean wasBluetoothEnabled(Bundle aSavedInstanceState) {
if (aSavedInstanceState == null) {
return BluetoothOperator.getAdapter().isEnabled();
}
return aSavedInstanceState.getBoolean(SavedStates.Keys.BLUETOOTH_ENABLED);
}
private void setUpComputersLists() {
setContentView(R.layout.activity_computers);
ActionBar aActionBar = getSupportActionBar();
aActionBar.addTab(buildActionBarTab(
R.string.title_bluetooth), ComputersPagerAdapter.PagesIndices.BLUETOOTH);
aActionBar.addTab(buildActionBarTab(
R.string.title_wifi), ComputersPagerAdapter.PagesIndices.WIFI);
ViewPager aComputersPager = getComputersPager();
aComputersPager.setAdapter(new ComputersPagerAdapter(getSupportFragmentManager()));
aComputersPager.setOnPageChangeListener(this);
getSupportActionBar().setSelectedNavigationItem(loadTabIndex());
}
private ActionBar.Tab buildActionBarTab(int aTitleResourceId) {
ActionBar.Tab aTab = getSupportActionBar().newTab();
aTab.setTabListener(this);
aTab.setText(aTitleResourceId);
return aTab;
}
@Override
public void onTabSelected(ActionBar.Tab aTab, FragmentTransaction aTransaction) {
getComputersPager().setCurrentItem(aTab.getPosition());
supportInvalidateOptionsMenu();
}
private ViewPager getComputersPager() {
return (ViewPager) findViewById(R.id.pager_computers);
}
@Override
public void onTabUnselected(ActionBar.Tab aTab, FragmentTransaction aTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab aTab, FragmentTransaction aTransaction) {
}
@Override
public void onPageSelected(int aPosition) {
getSupportActionBar().setSelectedNavigationItem(aPosition);
}
@Override
public void onPageScrolled(int aPosition, float aPositionOffset, int aPositionOffsetPixels) {
}
@Override
public void onPageScrollStateChanged(int aPosition) {
}
private int loadTabIndex() {
Preferences aPreferences = Preferences.getApplicationStatesInstance(this);
return aPreferences.getInt(Preferences.Keys.SELECTED_COMPUTERS_TAB_INDEX);
}
@Override
public boolean onCreateOptionsMenu(Menu aMenu) {
getMenuInflater().inflate(R.menu.menu_action_bar_computers, aMenu);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu aMenu) {
if (!BluetoothOperator.isAvailable()) {
return super.onPrepareOptionsMenu(aMenu);
}
MenuItem aComputerAddingMenuItem = aMenu.findItem(R.id.menu_add_computer);
switch (getSupportActionBar().getSelectedNavigationIndex()) {
case ComputersPagerAdapter.PagesIndices.BLUETOOTH:
aComputerAddingMenuItem.setVisible(false);
break;
case ComputersPagerAdapter.PagesIndices.WIFI:
aComputerAddingMenuItem.setVisible(true);
default:
break;
}
return super.onPrepareOptionsMenu(aMenu);
}
@Override
public boolean onOptionsItemSelected(MenuItem aMenuItem) {
switch (aMenuItem.getItemId()) {
case R.id.menu_settings:
callSettingsActivity();
return true;
case R.id.menu_requirements:
callRequirementsActivity();
return true;
case R.id.menu_licenses:
callLicensesActivity();
return true;
default:
return super.onOptionsItemSelected(aMenuItem);
}
}
private void callSettingsActivity() {
Intent aIntent = Intents.buildSettingsIntent(this);
startActivity(aIntent);
}
private void callRequirementsActivity() {
Intent aIntent = Intents.buildRequirementsIntent(this);
startActivity(aIntent);
}
private void callLicensesActivity() {
Intent aIntent = Intents.buildLicensesIntent(this);
startActivity(aIntent);
}
@Override
protected void onStop() {
super.onStop();
Preferences aPreferences = Preferences.getApplicationStatesInstance(this);
int aTabIndex = getSupportActionBar().getSelectedNavigationIndex();
aPreferences.setInt(Preferences.Keys.SELECTED_COMPUTERS_TAB_INDEX, aTabIndex);
}
@Override
protected void onSaveInstanceState(Bundle aSavedInstanceState) {
super.onSaveInstanceState(aSavedInstanceState);
aSavedInstanceState.putBoolean(SavedStates.Keys.BLUETOOTH_ENABLED, mBluetoothWasEnabled);
}
@Override
protected void onDestroy() {
super.onDestroy();
if (!BluetoothOperator.isAvailable()) {
return;
}
if (mBluetoothWasEnabled) {
return;
}
BluetoothOperator.disable();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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