1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* -*- 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.bluetooth.BluetoothAdapter;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBar.Tab;
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.Type;
import org.libreoffice.impressremote.util.Intents;
import org.libreoffice.impressremote.R;
public class ComputersActivity extends ActionBarActivity implements ActionBar.TabListener, ViewPager.OnPageChangeListener {
private static final int REQUEST_ENABLE_BT = 0;
private static final String SELECT_BLUETOOTH = "SELECT_BLUETOOTH";
private static final BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
private static boolean disableBTOnQuit = btAdapter != null && !btAdapter.isEnabled();
private static Tab btTab;
private static Tab wifiTab;
private boolean isInitializing;
private ComputersPagerAdapter computersPagerAdapter = new ComputersPagerAdapter(getSupportFragmentManager());
@Override
protected void onCreate(Bundle aSavedInstanceState) {
super.onCreate(aSavedInstanceState);
isInitializing = true;
setContentView(R.layout.activity_computers);
// 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);
btTab = aActionBar.newTab().setTabListener(this)
.setText(R.string.title_bluetooth);
wifiTab = aActionBar.newTab().setTabListener(this)
.setText(R.string.title_wifi);
if (btAdapter != null) {
computersPagerAdapter.addFragment(Type.BLUETOOTH);
aActionBar.addTab(btTab);
}
computersPagerAdapter.addFragment(Type.WIFI);
ViewPager aComputersPager = (ViewPager) findViewById(R.id.pager_computers);
aComputersPager.setAdapter(computersPagerAdapter);
aComputersPager.setOnPageChangeListener(this);
// select wifitab - onStart() decides whether BT-Tab should be selected
// when the user starts the remote (and thus trigger the BT-enable
// intent in case BT was disabled)
isInitializing = false;
aActionBar.addTab(wifiTab, true);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_ENABLE_BT) {
if (resultCode != RESULT_OK) {
getSupportActionBar().selectTab(wifiTab);
}
}
}
@Override
public void onTabSelected(Tab aTab, FragmentTransaction aTransaction) {
((ViewPager) findViewById(R.id.pager_computers)).setCurrentItem(aTab
.getPosition());
supportInvalidateOptionsMenu();
if (isInitializing) { return; }
if (aTab.equals(btTab) && !btAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
@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) {
}
@Override
public boolean onCreateOptionsMenu(Menu aMenu) {
getMenuInflater().inflate(R.menu.menu_action_bar_computers, aMenu);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu aMenu) {
aMenu.findItem(R.id.menu_add_computer)
.setVisible(getSupportActionBar().getSelectedTab().equals(wifiTab));
MenuItem btDiscovery = aMenu.findItem(R.id.menu_start_discovery);
if( btAdapter != null && btAdapter.isDiscovering()) {
btDiscovery.setEnabled(false);
MenuItemCompat.setActionView(btDiscovery, R.layout.progress);
}
btDiscovery.setVisible(getSupportActionBar().getSelectedTab().equals(btTab));
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;
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);
}
@Override
protected void onStop() {
super.onStop();
SharedPreferences sharedPref = getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putBoolean(SELECT_BLUETOOTH, getSupportActionBar()
.getSelectedTab().equals(btTab));
editor.commit();
}
@Override
protected void onStart() {
super.onStart();
SharedPreferences sharedPref = getPreferences(Context.MODE_PRIVATE);
if (sharedPref.getBoolean(SELECT_BLUETOOTH, btAdapter != null)) {
getSupportActionBar().selectTab(btTab);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (isFinishing() && disableBTOnQuit) {
btAdapter.disable();
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
