diff options
Diffstat (limited to 'app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java')
| -rw-r--r-- | app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java b/app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java new file mode 100644 index 0000000..79c7e6f --- /dev/null +++ b/app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java @@ -0,0 +1,180 @@ +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(); + } +} + |