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package com.wireguard.android;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.MenuItem;
import com.wireguard.config.Config;
/**
* Activity that allows creating/viewing/editing/deleting WireGuard configurations.
*/
public class ConfigActivity extends BaseConfigActivity {
private boolean canAddFragments;
private int containerId;
private final FragmentManager fm = getFragmentManager();
private boolean isEditing;
private boolean isSplitLayout;
@Override
public void onBackPressed() {
super.onBackPressed();
// Make sure the current config is cleared when going back to the list.
if (isEditing)
isEditing = false;
else
setCurrentConfig(null);
}
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.config_activity);
isSplitLayout = findViewById(R.id.detail_fragment) != null;
if (isSplitLayout)
containerId = R.id.detail_fragment;
else
containerId = R.id.master_fragment;
}
@Override
protected void onCurrentConfigChanged(final Config config) {
if (!canAddFragments)
return;
final Fragment currentFragment = fm.findFragmentById(containerId);
Log.d(getClass().getSimpleName(), "onCurrentConfigChanged config=" +
(config != null ? config.getName() : null) + " fragment=" + currentFragment);
if (currentFragment instanceof ConfigDetailFragment) {
// Handle the case when the split layout is switching from one config to another.
final ConfigDetailFragment detailFragment = (ConfigDetailFragment) currentFragment;
if (detailFragment.getCurrentConfig() != config)
detailFragment.setCurrentConfig(config);
} else if (currentFragment instanceof ConfigEditFragment) {
// Handle the case when ConfigEditFragment is finished updating a config.
fm.popBackStack();
isEditing = false;
final ConfigDetailFragment detailFragment =
(ConfigDetailFragment) fm.findFragmentByTag(TAG_DETAIL);
if (detailFragment.getCurrentConfig() != config)
detailFragment.setCurrentConfig(config);
} else if (config != null) {
// Handle the single-fragment-layout case and the case when a placeholder is replaced.
ConfigDetailFragment detailFragment =
(ConfigDetailFragment) fm.findFragmentByTag(TAG_DETAIL);
if (detailFragment != null) {
detailFragment.setCurrentConfig(config);
} else {
detailFragment = new ConfigDetailFragment();
final Bundle arguments = new Bundle();
arguments.putString(KEY_CURRENT_CONFIG, config.getName());
detailFragment.setArguments(arguments);
}
final FragmentTransaction transaction = fm.beginTransaction();
if (!isSplitLayout)
transaction.addToBackStack(TAG_DETAIL);
transaction.replace(containerId, detailFragment, TAG_DETAIL);
transaction.commit();
} else {
if (isSplitLayout) {
// Handle the split layout case when there is no config, so a placeholder is shown.
PlaceholderFragment placeholderFragment =
(PlaceholderFragment) fm.findFragmentByTag(TAG_PLACEHOLDER);
if (placeholderFragment == null)
placeholderFragment = new PlaceholderFragment();
final FragmentTransaction transaction = fm.beginTransaction();
transaction.replace(containerId, placeholderFragment, TAG_PLACEHOLDER);
transaction.commit();
}
}
// If the config change came from the intent or ConfigEditFragment, forward it to the list.
ConfigListFragment listFragment = (ConfigListFragment) fm.findFragmentByTag(TAG_LIST);
if (listFragment == null) {
listFragment = new ConfigListFragment();
final FragmentTransaction transaction = fm.beginTransaction();
transaction.replace(R.id.master_fragment, listFragment, TAG_LIST);
transaction.commit();
}
if (listFragment.getCurrentConfig() != config)
listFragment.setCurrentConfig(config);
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_action_edit:
ConfigEditFragment editFragment =
(ConfigEditFragment) fm.findFragmentByTag(TAG_EDIT);
if (editFragment != null) {
editFragment.setCurrentConfig(getCurrentConfig());
} else {
editFragment = new ConfigEditFragment();
final Bundle arguments = new Bundle();
arguments.putString(KEY_CURRENT_CONFIG, getCurrentConfig().getName());
editFragment.setArguments(arguments);
}
final FragmentTransaction transaction = fm.beginTransaction();
transaction.addToBackStack(TAG_EDIT);
transaction.replace(containerId, editFragment, TAG_EDIT);
transaction.commit();
isEditing = true;
return true;
case R.id.menu_action_save:
// This menu item is handled by the current fragment.
return false;
case R.id.menu_settings:
startActivity(new Intent(this, SettingsActivity.class));
return true;
default:
return false;
}
}
@Override
public void onSaveInstanceState(final Bundle outState) {
// We cannot save fragments that might switch between containers if the layout changes.
if (fm.getBackStackEntryCount() > 0) {
final int bottomEntryId = fm.getBackStackEntryAt(0).getId();
fm.popBackStackImmediate(bottomEntryId, FragmentManager.POP_BACK_STACK_INCLUSIVE);
}
if (isSplitLayout) {
final Fragment oldFragment = fm.findFragmentById(containerId);
if (oldFragment != null)
fm.beginTransaction().remove(oldFragment).commit();
}
super.onSaveInstanceState(outState);
}
@Override
protected void onServiceAvailable() {
// Create the initial fragment set.
canAddFragments = true;
onCurrentConfigChanged(getCurrentConfig());
}
}
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