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Diffstat (limited to 'src/com/android/settings/SimLockSettings.java')
| -rw-r--r-- | src/com/android/settings/SimLockSettings.java | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/src/com/android/settings/SimLockSettings.java b/src/com/android/settings/SimLockSettings.java new file mode 100644 index 0000000..286e3d6 --- /dev/null +++ b/src/com/android/settings/SimLockSettings.java @@ -0,0 +1,321 @@ +/* + * Copyright (C) 2008 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.settings; + +import android.content.Context; +import android.content.res.Resources; +import android.os.AsyncResult; +import android.os.Bundle; +import android.os.Handler; +import android.os.Message; +import android.preference.Preference; +import android.preference.PreferenceActivity; +import android.preference.CheckBoxPreference; +import android.preference.PreferenceScreen; +import com.android.internal.telephony.Phone; +import com.android.internal.telephony.PhoneFactory; +import android.widget.Toast; + +/** + * Implements the preference screen to enable/disable SIM lock and + * also the dialogs to change the SIM PIN. In the former case, enabling/disabling + * the SIM lock will prompt the user for the current PIN. + * In the Change PIN case, it prompts the user for old pin, new pin and new pin + * again before attempting to change it. Calls the SimCard interface to execute + * these operations. + * + */ +public class SimLockSettings extends PreferenceActivity + implements EditPinPreference.OnPinEnteredListener { + + private static final int OFF_MODE = 0; + // State when enabling/disabling SIM lock + private static final int SIM_LOCK_MODE = 1; + // State when entering the old pin + private static final int SIM_OLD_MODE = 2; + // State when entering the new pin - first time + private static final int SIM_NEW_MODE = 3; + // State when entering the new pin - second time + private static final int SIM_REENTER_MODE = 4; + + // Keys in xml file + private static final String PIN_DIALOG = "sim_pin"; + private static final String PIN_TOGGLE = "sim_toggle"; + // Keys in icicle + private static final String DIALOG_STATE = "dialogState"; + private static final String DIALOG_PIN = "dialogPin"; + private static final String DIALOG_ERROR = "dialogError"; + private static final String ENABLE_TO_STATE = "enableState"; + + private static final int MIN_PIN_LENGTH = 4; + private static final int MAX_PIN_LENGTH = 8; + // Which dialog to show next when popped up + private int mDialogState = OFF_MODE; + + private String mPin; + private String mOldPin; + private String mNewPin; + private String mError; + // Are we trying to enable or disable SIM lock? + private boolean mToState; + + private Phone mPhone; + + private EditPinPreference mPinDialog; + private CheckBoxPreference mPinToggle; + + private Resources mRes; + + // For async handler to identify request type + private static final int ENABLE_SIM_PIN_COMPLETE = 100; + private static final int CHANGE_SIM_PIN_COMPLETE = 101; + + // For replies from SimCard interface + private Handler mHandler = new Handler() { + public void handleMessage(Message msg) { + AsyncResult ar = (AsyncResult) msg.obj; + switch (msg.what) { + case ENABLE_SIM_PIN_COMPLETE: + simLockChanged(ar.exception == null); + break; + case CHANGE_SIM_PIN_COMPLETE: + simPinChanged(ar.exception == null); + break; + } + + return; + } + }; + + // For top-level settings screen to query + static boolean isSimLockEnabled() { + return PhoneFactory.getDefaultPhone().getSimCard().getSimLockEnabled(); + } + + static String getSummary(Context context) { + Resources res = context.getResources(); + String summary = isSimLockEnabled() + ? res.getString(R.string.sim_lock_on) + : res.getString(R.string.sim_lock_off); + return summary; + } + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + addPreferencesFromResource(R.xml.sim_lock_settings); + + mPinDialog = (EditPinPreference) findPreference(PIN_DIALOG); + mPinToggle = (CheckBoxPreference) findPreference(PIN_TOGGLE); + if (savedInstanceState != null && savedInstanceState.containsKey(DIALOG_STATE)) { + mDialogState = savedInstanceState.getInt(DIALOG_STATE); + mPin = savedInstanceState.getString(DIALOG_PIN); + mError = savedInstanceState.getString(DIALOG_ERROR); + mToState = savedInstanceState.getBoolean(ENABLE_TO_STATE); + } + + mPinDialog.setOnPinEnteredListener(this); + + // Don't need any changes to be remembered + getPreferenceScreen().setPersistent(false); + + mPhone = PhoneFactory.getDefaultPhone(); + mRes = getResources(); + } + + @Override + protected void onResume() { + super.onResume(); + + mPinToggle.setChecked(mPhone.getSimCard().getSimLockEnabled()); + + if (mDialogState != OFF_MODE) { + showPinDialog(); + } else { + // Prep for standard click on "Change PIN" + resetDialogState(); + } + } + + @Override + protected void onSaveInstanceState(Bundle out) { + // Need to store this state for slider open/close + // There is one case where the dialog is popped up by the preference + // framework. In that case, let the preference framework store the + // dialog state. In other cases, where this activity manually launches + // the dialog, store the state of the dialog. + if (mPinDialog.isDialogOpen()) { + out.putInt(DIALOG_STATE, mDialogState); + out.putString(DIALOG_PIN, mPinDialog.getEditText().getText().toString()); + out.putString(DIALOG_ERROR, mError); + out.putBoolean(ENABLE_TO_STATE, mToState); + } else { + super.onSaveInstanceState(out); + } + } + + private void showPinDialog() { + if (mDialogState == OFF_MODE) { + return; + } + setDialogValues(); + + mPinDialog.showPinDialog(); + } + + private void setDialogValues() { + mPinDialog.setText(mPin); + String message = ""; + switch (mDialogState) { + case SIM_LOCK_MODE: + message = mRes.getString(R.string.sim_enter_pin); + mPinDialog.setDialogTitle(mToState + ? mRes.getString(R.string.sim_enable_sim_lock) + : mRes.getString(R.string.sim_disable_sim_lock)); + break; + case SIM_OLD_MODE: + message = mRes.getString(R.string.sim_enter_old); + mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin)); + break; + case SIM_NEW_MODE: + message = mRes.getString(R.string.sim_enter_new); + mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin)); + break; + case SIM_REENTER_MODE: + message = mRes.getString(R.string.sim_reenter_new); + mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin)); + break; + } + if (mError != null) { + message = mError + "\n" + message; + mError = null; + } + mPinDialog.setDialogMessage(message); + } + + public void onPinEntered(EditPinPreference preference, boolean positiveResult) { + if (!positiveResult) { + resetDialogState(); + return; + } + + mPin = preference.getText(); + if (!reasonablePin(mPin)) { + // inject error message and display dialog again + mError = mRes.getString(R.string.sim_bad_pin); + showPinDialog(); + return; + } + switch (mDialogState) { + case SIM_LOCK_MODE: + tryChangeSimLockState(); + break; + case SIM_OLD_MODE: + mOldPin = mPin; + mDialogState = SIM_NEW_MODE; + mError = null; + mPin = null; + showPinDialog(); + break; + case SIM_NEW_MODE: + mNewPin = mPin; + mDialogState = SIM_REENTER_MODE; + mPin = null; + showPinDialog(); + break; + case SIM_REENTER_MODE: + if (!mPin.equals(mNewPin)) { + mError = mRes.getString(R.string.sim_pins_dont_match); + mDialogState = SIM_NEW_MODE; + mPin = null; + showPinDialog(); + } else { + mError = null; + tryChangePin(); + } + break; + } + } + + public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { + if (preference == mPinToggle) { + // Get the new, preferred state + mToState = mPinToggle.isChecked(); + // Flip it back and pop up pin dialog + mPinToggle.setChecked(!mToState); + mDialogState = SIM_LOCK_MODE; + showPinDialog(); + } + return true; + } + + private void tryChangeSimLockState() { + // Try to change sim lock. If it succeeds, toggle the lock state and + // reset dialog state. Else inject error message and show dialog again. + Message callback = Message.obtain(mHandler, ENABLE_SIM_PIN_COMPLETE); + mPhone.getSimCard().setSimLockEnabled(mToState, mPin, callback); + + } + + private void simLockChanged(boolean success) { + if (success) { + mPinToggle.setChecked(mToState); + } else { + // TODO: I18N + Toast.makeText(this, mRes.getString(R.string.sim_lock_failed), Toast.LENGTH_SHORT) + .show(); + } + resetDialogState(); + } + + private void simPinChanged(boolean success) { + if (!success) { + // TODO: I18N + Toast.makeText(this, mRes.getString(R.string.sim_change_failed), + Toast.LENGTH_SHORT) + .show(); + } else { + Toast.makeText(this, mRes.getString(R.string.sim_change_succeeded), + Toast.LENGTH_SHORT) + .show(); + + } + resetDialogState(); + } + + private void tryChangePin() { + Message callback = Message.obtain(mHandler, CHANGE_SIM_PIN_COMPLETE); + mPhone.getSimCard().changeSimLockPassword(mOldPin, + mNewPin, callback); + } + + private boolean reasonablePin(String pin) { + if (pin == null || pin.length() < MIN_PIN_LENGTH || pin.length() > MAX_PIN_LENGTH) { + return false; + } else { + return true; + } + } + + private void resetDialogState() { + mError = null; + mDialogState = SIM_OLD_MODE; // Default for when Change PIN is clicked + mPin = ""; + setDialogValues(); + } +} |