blob: 336cda8482227c5b2cba1459eae7b046f7f2eb9f (
plain) (
blame)
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
|
/*
* Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.activity
import android.content.Intent
import android.os.Bundle
import android.view.Menu
import android.view.MenuItem
import android.view.View
import androidx.appcompat.app.ActionBar
import androidx.fragment.app.FragmentManager
import androidx.fragment.app.FragmentTransaction
import com.wireguard.android.R
import com.wireguard.android.fragment.TunnelDetailFragment
import com.wireguard.android.fragment.TunnelEditorFragment
import com.wireguard.android.model.ObservableTunnel
/**
* CRUD interface for WireGuard tunnels. This activity serves as the main entry point to the
* WireGuard application, and contains several fragments for listing, viewing details of, and
* editing the configuration and interface state of WireGuard tunnels.
*/
class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener {
private var actionBar: ActionBar? = null
private var isTwoPaneLayout = false
override fun onBackPressed() {
val backStackEntries = supportFragmentManager.backStackEntryCount
// If the two-pane layout does not have an editor open, going back should exit the app.
if (isTwoPaneLayout && backStackEntries <= 1) {
finish()
return
}
// Deselect the current tunnel on navigating back from the detail pane to the one-pane list.
if (!isTwoPaneLayout && backStackEntries == 1) {
supportFragmentManager.popBackStack()
selectedTunnel = null
return
}
super.onBackPressed()
}
override fun onBackStackChanged() {
if (actionBar == null) return
// Do not show the home menu when the two-pane layout is at the detail view (see above).
val backStackEntries = supportFragmentManager.backStackEntryCount
val minBackStackEntries = if (isTwoPaneLayout) 2 else 1
actionBar!!.setDisplayHomeAsUpEnabled(backStackEntries >= minBackStackEntries)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.main_activity)
actionBar = supportActionBar
isTwoPaneLayout = findViewById<View?>(R.id.master_detail_wrapper) != null
supportFragmentManager.addOnBackStackChangedListener(this)
onBackStackChanged()
}
override fun onCreateOptionsMenu(menu: Menu): Boolean {
menuInflater.inflate(R.menu.main_activity, menu)
return true
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
return when (item.itemId) {
android.R.id.home -> {
// The back arrow in the action bar should act the same as the back button.
onBackPressed()
true
}
R.id.menu_action_edit -> {
supportFragmentManager.beginTransaction()
.replace(R.id.detail_container, TunnelEditorFragment())
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
.addToBackStack(null)
.commit()
true
}
// This menu item is handled by the editor fragment.
R.id.menu_action_save -> false
R.id.menu_settings -> {
startActivity(Intent(this, SettingsActivity::class.java))
true
}
else -> super.onOptionsItemSelected(item)
}
}
override fun onSelectedTunnelChanged(oldTunnel: ObservableTunnel?,
newTunnel: ObservableTunnel?) {
val fragmentManager = supportFragmentManager
val backStackEntries = fragmentManager.backStackEntryCount
if (newTunnel == null) {
// Clear everything off the back stack (all editors and detail fragments).
fragmentManager.popBackStackImmediate(0, FragmentManager.POP_BACK_STACK_INCLUSIVE)
return
}
if (backStackEntries == 2) {
// Pop the editor off the back stack to reveal the detail fragment. Use the immediate
// method to avoid the editor picking up the new tunnel while it is still visible.
fragmentManager.popBackStackImmediate()
} else if (backStackEntries == 0) {
// Create and show a new detail fragment.
fragmentManager.beginTransaction()
.add(R.id.detail_container, TunnelDetailFragment())
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
.addToBackStack(null)
.commit()
}
}
}
|
