/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.email.activity.setup;
import android.app.Activity;
import android.app.LoaderManager;
import android.content.Context;
import android.content.Loader;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.TextView;
import com.android.email.R;
import com.android.email.activity.UiUtilities;
import com.android.emailcommon.provider.Account;
import com.android.emailcommon.provider.HostAuth;
/**
* Common base class for server settings fragments, so they can be more easily manipulated by
* AccountSettingsXL. Provides the following common functionality:
*
* Activity-provided callbacks
* Activity callback during onAttach
* Present "Next" button and respond to its clicks
*/
public abstract class AccountServerBaseFragment extends AccountSetupFragment
implements OnClickListener {
private static final String BUNDLE_KEY_SETTINGS = "AccountServerBaseFragment.settings";
private static final String BUNDLE_KEY_ACTIVITY_TITLE = "AccountServerBaseFragment.title";
private static final String BUNDLE_KEY_SAVING = "AccountServerBaseFragment.saving";
private static final String BUNDLE_KEY_SENDAUTH = "AccountServerBaseFragment.sendAuth";
private static final String BUNDLE_KEY_RECVAUTH = "AccountServerBaseFragment.recvAuth";
protected Context mAppContext;
/**
* Whether or not we are in "settings mode". We re-use the same screens for both the initial
* account creation as well as subsequent account modification. If this is
* <code>false</code>, we are in account creation mode. Otherwise, we are in account
* modification mode.
*/
protected boolean mSettingsMode;
protected HostAuth mLoadedSendAuth;
protected HostAuth mLoadedRecvAuth;
protected SetupDataFragment mSetupData;
// This is null in the setup wizard screens, and non-null in AccountSettings mode
private View mProceedButton;
protected String mBaseScheme = "protocol";
// Set to true if we're in the process of saving
private boolean mSaving;
/**
// Used to post the callback once we're done saving, since we can't perform fragment
// transactions from {@link LoaderManager.LoaderCallbacks#onLoadFinished(Loader, Object)}
*/
private Handler mHandler = new Handler();
/**
* Callback interface that owning activities must provide
*/
public interface Callback extends AccountSetupFragment.Callback {
/**
* Called when user clicks "next". Starts account checker.
* @param checkMode values from {@link SetupDataFragment}
*/
public void onAccountServerUIComplete(int checkMode);
public void onAccountServerSaveComplete();
}
/**
* Creates and returns a bundle of arguments in the format we expect
*
* @param settingsMode True if we're in settings, false if we're in account creation
* @return Arg bundle
*/
public static Bundle getArgs(boolean settingsMode) {
final Bundle setupModeArgs = new Bundle(1);
setupModeArgs.putBoolean(BUNDLE_KEY_SETTINGS, settingsMode);
return setupModeArgs;
}
public AccountServerBaseFragment() {}
/**
* At onCreate time, read the fragment arguments
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get arguments, which modally switch us into "settings" mode (different appearance)
mSettingsMode = false;
if (savedInstanceState != null) {
mSettingsMode = savedInstanceState.getBoolean(BUNDLE_KEY_SETTINGS);
mSaving = savedInstanceState.getBoolean(BUNDLE_KEY_SAVING);
mLoadedSendAuth = savedInstanceState.getParcelable(BUNDLE_KEY_SENDAUTH);
mLoadedRecvAuth = savedInstanceState.getParcelable(BUNDLE_KEY_RECVAUTH);
} else if (getArguments() != null) {
mSettingsMode = getArguments().getBoolean(BUNDLE_KEY_SETTINGS);
}
setHasOptionsMenu(true);
}
/**
* Called from onCreateView, to do settings mode configuration
*/
protected void onCreateViewSettingsMode(View view) {
if (mSettingsMode) {
UiUtilities.getView(view, R.id.cancel).setOnClickListener(this);
mProceedButton = UiUtilities.getView(view, R.id.done);
mProceedButton.setOnClickListener(this);
mProceedButton.setEnabled(false);
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
final Activity activity = getActivity();
mAppContext = activity.getApplicationContext();
if (mSettingsMode && savedInstanceState != null) {
// startPreferencePanel launches this fragment with the right title initially, but
// if the device is rotated we must set the title ourselves
activity.setTitle(savedInstanceState.getString(BUNDLE_KEY_ACTIVITY_TITLE));
}
SetupDataFragment.SetupDataContainer container =
(SetupDataFragment.SetupDataContainer) activity;
mSetupData = container.getSetupData();
super.onActivityCreated(savedInstanceState);
}
@Override
public void onResume() {
super.onResume();
if (mSaving) {
// We need to call this here in case the save completed while we weren't resumed
saveSettings();
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString(BUNDLE_KEY_ACTIVITY_TITLE, (String) getActivity().getTitle());
outState.putBoolean(BUNDLE_KEY_SETTINGS, mSettingsMode);
outState.putParcelable(BUNDLE_KEY_SENDAUTH, mLoadedSendAuth);
outState.putParcelable(BUNDLE_KEY_RECVAUTH, mLoadedRecvAuth);
}
@Override
public void onPause() {
// Hide the soft keyboard if we lose focus
final InputMethodManager imm =
(InputMethodManager) mAppContext.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(getView().getWindowToken(), 0);
super.onPause();
}
/**
* Implements OnClickListener
*/
@Override
public void onClick(View v) {
final int viewId = v.getId();
if (viewId == R.id.cancel) {
collectUserInputInternal();
getActivity().onBackPressed();
} else if (viewId == R.id.done) {
collectUserInput();
} else {
super.onClick(v);
}
}
/**
* Enable/disable the "next" button
*/
public void enableNextButton(boolean enable) {
// If we are in settings "mode" we may be showing our own next button, and we'll
// enable it directly, here
if (mProceedButton != null) {
mProceedButton.setEnabled(enable);
} else {
setNextButtonEnabled(enable);
}
}
/**
* Make the given text view uneditable. If the text view is ever focused, the specified
* error message will be displayed.
*/
protected void makeTextViewUneditable(final TextView view, final String errorMessage) {
// We're editing an existing account; don't allow modification of the user name
if (mSettingsMode) {
view.setKeyListener(null);
view.setFocusable(true);
view.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
// Framework will not auto-hide IME; do it ourselves
InputMethodManager imm = (InputMethodManager) mAppContext.
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(getView().getWindowToken(), 0);
view.setError(errorMessage);
} else {
view.setError(null);
}
}
});
view.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (view.getError() == null) {
view.setError(errorMessage);
} else {
view.setError(null);
}
}
});
}
}
/**
* Returns whether or not any settings have changed.
*/
public boolean haveSettingsChanged() {
collectUserInputInternal();
final Account account = mSetupData.getAccount();
final HostAuth sendAuth = account.getOrCreateHostAuthSend(mAppContext);
final boolean sendChanged = (mLoadedSendAuth != null && !mLoadedSendAuth.equals(sendAuth));
final HostAuth recvAuth = account.getOrCreateHostAuthRecv(mAppContext);
final boolean recvChanged = (mLoadedRecvAuth != null && !mLoadedRecvAuth.equals(recvAuth));
return sendChanged || recvChanged;
}
public void saveSettings() {
getLoaderManager().initLoader(0, null, new LoaderManager.LoaderCallbacks<Boolean>() {
@Override
public Loader<Boolean> onCreateLoader(int id, Bundle args) {
return getSaveSettingsLoader();
}
@Override
public void onLoadFinished(Loader<Boolean> loader, Boolean data) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (isResumed()) {
final Callback callback = (Callback) getActivity();
callback.onAccountServerSaveComplete();
}
}
});
}
@Override
public void onLoaderReset(Loader<Boolean> loader) {}
});
}
public abstract Loader<Boolean> getSaveSettingsLoader();
/**
* Collect the user's input into the setup data object. Concrete classes must implement.
*/
public abstract int collectUserInputInternal();
public void collectUserInput() {
final int phase = collectUserInputInternal();
final Callback callback = (Callback) getActivity();
callback.onAccountServerUIComplete(phase);
}
}