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package de.thedevstack.android.nextcloud.bookmark.share.activities;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Build;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.webkit.URLUtil;
import android.widget.EditText;
import android.widget.TextView;
import de.thedevstack.android.nextcloud.bookmark.share.Constants;
import de.thedevstack.android.nextcloud.bookmark.share.NextcloudBookmark;
import de.thedevstack.android.nextcloud.bookmark.share.R;
import de.thedevstack.android.nextcloud.bookmark.share.async.NextcloudCheckCredentialsTask;
/**
* A login screen that offers login via username/password.
*/
public class NextcloudPreferencesActivity extends AppCompatActivity {
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private NextcloudCheckCredentialsTask checkCredentialsTask = null;
// UI references.
private EditText serverUrlView;
private EditText usernameView;
private EditText passwordView;
private View mProgressView;
private View mLoginFormView;
private NextcloudBookmark bookmark;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nextcloud_preferences);
Intent intent = getIntent();
this.bookmark = NextcloudBookmark.create(intent.getStringExtra(Intent.EXTRA_TEXT), intent.getStringExtra(Intent.EXTRA_TITLE));
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
// Set up the login form.
serverUrlView = findViewById(R.id.serverUrl);
serverUrlView.setText(prefs.getString(Constants.SERVER_URL_PREFERENCE_KEY, getString(R.string.default_server_url)));
usernameView = findViewById(R.id.username);
usernameView.setText(prefs.getString(Constants.USERNAME_PREFERENCE_KEY, getString(R.string.default_blank)));
passwordView = findViewById(R.id.password);
passwordView.setText(prefs.getString(Constants.PASSWORD_PREFERENCE_KEY, getString(R.string.default_blank)));
passwordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
if (id == EditorInfo.IME_ACTION_DONE || id == EditorInfo.IME_NULL) {
checkCredentials();
return true;
}
return false;
}
});
findViewById(R.id.sign_in_button).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
checkCredentials();
}
});
mLoginFormView = findViewById(R.id.login_form);
mProgressView = findViewById(R.id.login_progress);
}
/**
* Attempts to sign in or register the account specified by the login form.
* If there are form errors (invalid email, missing fields, etc.), the
* errors are presented and no actual login attempt is made.
*/
private void checkCredentials() {
if (checkCredentialsTask != null) {
return;
}
// Reset errors.
serverUrlView.setError(null);
usernameView.setError(null);
passwordView.setError(null);
// Store values at the time of the login attempt.
String nextcloudServerUrl = serverUrlView.getText().toString();
String username = usernameView.getText().toString();
String password = passwordView.getText().toString();
boolean cancel = false;
View focusView = null;
if (TextUtils.isEmpty(nextcloudServerUrl) || !URLUtil.isNetworkUrl(nextcloudServerUrl)) {
serverUrlView.setError(getString(R.string.error_server_url_invalid));
focusView = serverUrlView;
cancel = true;
}
// Check for a valid email address.
if (TextUtils.isEmpty(username)) {
usernameView.setError(getString(R.string.error_field_required));
focusView = usernameView;
cancel = true;
}
if (cancel) {
// There was an error; don't attempt login and focus the first
// form field with an error.
focusView.requestFocus();
} else {
// Show a progress spinner, and kick off a background task to
// perform the user login attempt.
showProgress(true);
checkCredentialsTask = new NextcloudCheckCredentialsTask(this, this.bookmark, nextcloudServerUrl, username, password);
checkCredentialsTask.execute((Intent) null);
}
}
/**
* Shows the progress UI and hides the login form.
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
public void showProgress(final boolean show) {
// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
// for very easy animations. If available, use these APIs to fade-in
// the progress spinner.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
// The ViewPropertyAnimator APIs are not available, so simply show
// and hide the relevant UI components.
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
public void stopProgress() {
this.checkCredentialsTask = null;
showProgress(false);
}
public void showIncorrectPassword() {
passwordView.setError(getString(R.string.error_incorrect_password));
passwordView.requestFocus();
}
}
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