gecko-dev/mobile/android/base/GeckoPreferences.java

415 lines
18 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import org.mozilla.gecko.util.GeckoEventListener;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.EditTextPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.text.Editable;
import android.text.InputType;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Toast;
import java.util.ArrayList;
public class GeckoPreferences
extends PreferenceActivity
implements OnPreferenceChangeListener, GeckoEventListener
{
private static final String LOGTAG = "GeckoPreferences";
private ArrayList<String> mPreferencesList;
private PreferenceScreen mPreferenceScreen;
private static boolean sIsCharEncodingEnabled = false;
private static final String NON_PREF_PREFIX = "android.not_a_preference.";
// These match keys in resources/xml/preferences.xml.in.
public static String PREFS_MP_ENABLED = "privacy.masterpassword.enabled";
public static String PREFS_MENU_CHAR_ENCODING = "browser.menu.showCharacterEncoding";
public static String PREFS_ANNOUNCEMENTS_ENABLED = NON_PREF_PREFIX + "privacy.announcements.enabled";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
registerEventListener("Sanitize:Finished");
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (!hasFocus)
return;
mPreferencesList = new ArrayList<String>();
mPreferenceScreen = getPreferenceScreen();
initGroups(mPreferenceScreen);
initValues();
}
@Override
protected void onDestroy() {
super.onDestroy();
unregisterEventListener("Sanitize:Finished");
}
public void handleMessage(String event, JSONObject message) {
try {
if (event.equals("Sanitize:Finished")) {
boolean success = message.getBoolean("success");
final int stringRes = success ? R.string.private_data_success : R.string.private_data_fail;
final Context context = this;
GeckoAppShell.getMainHandler().post(new Runnable () {
public void run() {
Toast.makeText(context, stringRes, Toast.LENGTH_SHORT).show();
}
});
}
} catch (Exception e) {
Log.e(LOGTAG, "Exception handling message \"" + event + "\":", e);
}
}
private void initGroups(PreferenceGroup preferences) {
final int count = preferences.getPreferenceCount();
for (int i = 0; i < count; i++) {
Preference pref = preferences.getPreference(i);
if (pref instanceof PreferenceGroup)
initGroups((PreferenceGroup)pref);
else {
pref.setOnPreferenceChangeListener(this);
// Some Preference UI elements are not actually preferences,
// but they require a key to work correctly. For example,
// "Clear private data" requires a key for its state to be
// saved when the orientation changes. It uses the
// "android.not_a_preference.privacy.clear" key - which doesn't
// exist in Gecko - to satisfy this requirement.
String key = pref.getKey();
if (key != null && !key.startsWith(NON_PREF_PREFIX)) {
mPreferencesList.add(pref.getKey());
}
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
final private int DIALOG_CREATE_MASTER_PASSWORD = 0;
final private int DIALOG_REMOVE_MASTER_PASSWORD = 1;
public static void setCharEncodingState(boolean enabled) {
sIsCharEncodingEnabled = enabled;
}
public static boolean getCharEncodingState() {
return sIsCharEncodingEnabled;
}
/**
* Broadcast an intent with <code>pref</code>, <code>branch</code>, and
* <code>enabled</code> extras. This is intended to represent the
* notification of a preference value to observers.
*/
public static void broadcastPrefAction(final Context context,
final String action,
final String pref,
final boolean value) {
final Intent intent = new Intent(action);
intent.setAction(action);
intent.putExtra("pref", pref);
intent.putExtra("branch", GeckoApp.PREFS_NAME);
intent.putExtra("enabled", value);
Log.d(LOGTAG, "Broadcast: " + action + ", " + pref + ", " + GeckoApp.PREFS_NAME + ", " + value);
context.sendBroadcast(intent);
}
/**
* Broadcast the provided value as the value of the
* <code>PREFS_ANNOUNCEMENTS_ENABLED</code> pref.
*/
public static void broadcastAnnouncementsPref(final Context context, final boolean value) {
broadcastPrefAction(context,
GeckoApp.ACTION_ANNOUNCEMENTS_PREF,
PREFS_ANNOUNCEMENTS_ENABLED,
value);
}
/**
* Broadcast the current value of the
* <code>PREFS_ANNOUNCEMENTS_ENABLED</code> pref.
*/
public static void broadcastAnnouncementsPref(final Context context) {
broadcastPrefAction(context,
GeckoApp.ACTION_ANNOUNCEMENTS_PREF,
PREFS_ANNOUNCEMENTS_ENABLED,
getBooleanPref(context, PREFS_ANNOUNCEMENTS_ENABLED, true));
}
/**
* Return the value of the named preference in the default preferences file.
*
* This corresponds to the storage that backs preferences.xml.
* @param context a <code>Context</code>; the
* <code>PreferenceActivity</code> will suffice, but this
* method is intended to be called from other contexts
* within the application, not just this <code>Activity</code>.
* @param name the name of the preference to retrieve.
* @param def the default value to return if the preference is not present.
* @return the value of the preference, or the default.
*/
public static boolean getBooleanPref(final Context context, final String name, boolean def) {
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
return prefs.getBoolean(name, def);
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
String prefName = preference.getKey();
if (prefName != null && prefName.equals(PREFS_MP_ENABLED)) {
showDialog((Boolean) newValue ? DIALOG_CREATE_MASTER_PASSWORD : DIALOG_REMOVE_MASTER_PASSWORD);
return false;
} else if (prefName != null && prefName.equals(PREFS_MENU_CHAR_ENCODING)) {
setCharEncodingState(((String) newValue).equals("true"));
} else if (prefName != null && prefName.equals(PREFS_ANNOUNCEMENTS_ENABLED)) {
// Send a broadcast intent to the product announcements service, either to start or
// to stop the repeated background checks.
broadcastAnnouncementsPref(GeckoApp.mAppContext, ((Boolean) newValue).booleanValue());
}
if (!TextUtils.isEmpty(prefName)) {
PrefsHelper.setPref(prefName, newValue);
}
if (preference instanceof ListPreference) {
// We need to find the entry for the new value
int newIndex = ((ListPreference)preference).findIndexOfValue((String) newValue);
CharSequence newEntry = ((ListPreference)preference).getEntries()[newIndex];
((ListPreference)preference).setSummary(newEntry);
} else if (preference instanceof LinkPreference) {
finish();
} else if (preference instanceof FontSizePreference) {
final FontSizePreference fontSizePref = (FontSizePreference) preference;
fontSizePref.setSummary(fontSizePref.getSavedFontSizeName());
}
return true;
}
private EditText getTextBox(int aHintText) {
EditText input = new EditText(GeckoApp.mAppContext);
int inputtype = InputType.TYPE_CLASS_TEXT;
inputtype |= InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS;
input.setInputType(inputtype);
String hint = getResources().getString(aHintText);
input.setHint(aHintText);
return input;
}
private class PasswordTextWatcher implements TextWatcher {
EditText input1 = null;
EditText input2 = null;
AlertDialog dialog = null;
PasswordTextWatcher(EditText aInput1, EditText aInput2, AlertDialog aDialog) {
input1 = aInput1;
input2 = aInput2;
dialog = aDialog;
}
public void afterTextChanged(Editable s) {
if (dialog == null)
return;
String text1 = input1.getText().toString();
String text2 = input2.getText().toString();
boolean disabled = TextUtils.isEmpty(text1) || TextUtils.isEmpty(text2) || !text1.equals(text2);
dialog.getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(!disabled);
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
public void onTextChanged(CharSequence s, int start, int before, int count) { }
}
protected Dialog onCreateDialog(int id) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
AlertDialog dialog = null;
switch(id) {
case DIALOG_CREATE_MASTER_PASSWORD:
final EditText input1 = getTextBox(R.string.masterpassword_password);
final EditText input2 = getTextBox(R.string.masterpassword_confirm);
linearLayout.addView(input1);
linearLayout.addView(input2);
builder.setTitle(R.string.masterpassword_create_title)
.setView((View)linearLayout)
.setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
JSONObject jsonPref = new JSONObject();
try {
jsonPref.put("name", PREFS_MP_ENABLED);
jsonPref.put("type", "string");
jsonPref.put("value", input1.getText().toString());
GeckoEvent event = GeckoEvent.createBroadcastEvent("Preferences:Set", jsonPref.toString());
GeckoAppShell.sendEventToGecko(event);
} catch(Exception ex) {
Log.e(LOGTAG, "Error setting master password", ex);
}
return;
}
})
.setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
dialog = builder.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
public void onShow(DialogInterface dialog) {
input1.setText("");
input2.setText("");
input1.requestFocus();
}
});
PasswordTextWatcher watcher = new PasswordTextWatcher(input1, input2, dialog);
input1.addTextChangedListener((TextWatcher)watcher);
input2.addTextChangedListener((TextWatcher)watcher);
break;
case DIALOG_REMOVE_MASTER_PASSWORD:
final EditText input = getTextBox(R.string.masterpassword_password);
linearLayout.addView(input);
builder.setTitle(R.string.masterpassword_remove_title)
.setView((View)linearLayout)
.setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
PrefsHelper.setPref(PREFS_MP_ENABLED, input.getText().toString());
}
})
.setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
dialog = builder.create();
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
input.setText("");
}
});
break;
default:
return null;
}
return dialog;
}
// Initialize preferences by requesting the preference values from Gecko
private void initValues() {
JSONArray jsonPrefs = new JSONArray(mPreferencesList);
PrefsHelper.getPrefs(jsonPrefs, new PrefsHelper.PrefHandlerBase() {
private Preference getField(String prefName) {
return (mPreferenceScreen == null ? null : mPreferenceScreen.findPreference(prefName));
}
@Override public void prefValue(String prefName, final boolean value) {
final Preference pref = getField(prefName);
if (pref instanceof CheckBoxPreference) {
GeckoAppShell.getMainHandler().post(new Runnable() {
public void run() {
if (((CheckBoxPreference)pref).isChecked() != value)
((CheckBoxPreference)pref).setChecked(value);
}
});
}
}
@Override public void prefValue(String prefName, final String value) {
final Preference pref = getField(prefName);
if (pref instanceof EditTextPreference) {
GeckoAppShell.getMainHandler().post(new Runnable() {
public void run() {
((EditTextPreference)pref).setText(value);
}
});
} else if (pref instanceof ListPreference) {
GeckoAppShell.getMainHandler().post(new Runnable() {
public void run() {
((ListPreference)pref).setValue(value);
// Set the summary string to the current entry
CharSequence selectedEntry = ((ListPreference)pref).getEntry();
((ListPreference)pref).setSummary(selectedEntry);
}
});
} else if (pref instanceof FontSizePreference) {
final FontSizePreference fontSizePref = (FontSizePreference) pref;
fontSizePref.setSavedFontSize(value);
final String fontSizeName = fontSizePref.getSavedFontSizeName();
GeckoAppShell.getMainHandler().post(new Runnable() {
public void run() {
fontSizePref.setSummary(fontSizeName); // Ex: "Small".
}
});
}
}
@Override public void finish() {
// enable all preferences once we have them from gecko
GeckoAppShell.getMainHandler().post(new Runnable() {
public void run() {
mPreferenceScreen.setEnabled(true);
}
});
}
});
}
private void registerEventListener(String event) {
GeckoAppShell.getEventDispatcher().registerEventListener(event, this);
}
private void unregisterEventListener(String event) {
GeckoAppShell.getEventDispatcher().unregisterEventListener(event, this);
}
}