@Override
public boolean handleMessage(Message message) {
mUpdater.removeMessages(0);
if (isResumed()) {
try {
LegacyVpnInfo info = mService.getLegacyVpnInfo();
if (mInfo != null) {
VpnPreference preference = mPreferences.get(mInfo.key);
if (preference != null) {
preference.update(-1);
}
mInfo = null;
}
if (info != null) {
VpnPreference preference = mPreferences.get(info.key);
if (preference != null) {
preference.update(info.state);
mInfo = info;
}
}
} catch (Exception e) {
// ignore
}
mUpdater.sendEmptyMessageDelayed(0, 1000);
}
return true;
}
@Override
public void onClick(DialogInterface dialog, int button) {
if (button == DialogInterface.BUTTON_POSITIVE) {
// Always save the profile.
VpnProfile profile = mDialog.getProfile();
mKeyStore.put(Credentials.VPN + profile.key, profile.encode());
// Update the preference.
VpnPreference preference = mPreferences.get(profile.key);
if (preference != null) {
disconnect(profile.key);
preference.update(profile);
} else {
preference = new VpnPreference(getActivity(), profile);
preference.setOnPreferenceClickListener(this);
mPreferences.put(profile.key, preference);
getPreferenceScreen().addPreference(preference);
}
// If we are not editing, connect!
if (!mDialog.isEditing()) {
try {
connect(profile);
} catch (Exception e) {
Log.e(TAG, "connect", e);
}
}
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if (mDialog != null) {
Log.v(TAG, "onContextItemSelected() is called when mDialog != null");
return false;
}
VpnPreference preference = mPreferences.get(mSelectedKey);
if (preference == null) {
Log.v(TAG, "onContextItemSelected() is called but no preference is found");
return false;
}
switch (item.getItemId()) {
case R.string.vpn_menu_edit:
mDialog = new VpnDialog(getActivity(), this, preference.getProfile(), true);
mDialog.setOnDismissListener(this);
mDialog.show();
return true;
case R.string.vpn_menu_delete:
disconnect(mSelectedKey);
getPreferenceScreen().removePreference(preference);
mPreferences.remove(mSelectedKey);
mKeyStore.delete(Credentials.VPN + mSelectedKey);
return true;
}
return false;
}
@Override
public void onResume() {
super.onResume();
// Check KeyStore here, so others do not need to deal with it.
if (!mKeyStore.isUnlocked()) {
if (!mUnlocking) {
// Let us unlock KeyStore. See you later!
Credentials.getInstance().unlock(getActivity());
} else {
// We already tried, but it is still not working!
finishFragment();
}
mUnlocking = !mUnlocking;
return;
}
// Now KeyStore is always unlocked. Reset the flag.
mUnlocking = false;
// Currently we are the only user of profiles in KeyStore.
// Assuming KeyStore and KeyGuard do the right thing, we can
// safely cache profiles in the memory.
if (mPreferences.size() == 0) {
PreferenceGroup group = getPreferenceScreen();
final Context context = getActivity();
final List<VpnProfile> profiles = loadVpnProfiles(mKeyStore);
for (VpnProfile profile : profiles) {
final VpnPreference pref = new VpnPreference(context, profile);
pref.setOnPreferenceClickListener(this);
mPreferences.put(profile.key, pref);
group.addPreference(pref);
}
}
// Show the dialog if there is one.
if (mDialog != null) {
mDialog.setOnDismissListener(this);
mDialog.show();
}
// Start monitoring.
if (mUpdater == null) {
mUpdater = new Handler(this);
}
mUpdater.sendEmptyMessage(0);
// Register for context menu. Hmmm, getListView() is hidden?
registerForContextMenu(getListView());
}