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mobile/android/base/preferences/GeckoPreferenceFragment.java@fc2d59ddac77 (annotated)

mobile/android/base/preferences/GeckoPreferenceFragment.java

Wed, 31 Dec 2014 07:22:50 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 07:22:50 +0100

branch

TOR_BUG_3246

changeset 4

fc2d59ddac77

permissions

-rw-r--r--

Correct previous dual key logic pending first delivery installment.

michael@0	1	/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
michael@0	2	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	package org.mozilla.gecko.preferences;
michael@0	7
michael@0	8	import java.lang.reflect.Field;
michael@0	9
michael@0	10	import org.mozilla.gecko.GeckoSharedPrefs;
michael@0	11	import org.mozilla.gecko.PrefsHelper;
michael@0	12	import org.mozilla.gecko.R;
michael@0	13
michael@0	14	import android.app.Activity;
michael@0	15	import android.os.Bundle;
michael@0	16	import android.preference.PreferenceActivity;
michael@0	17	import android.preference.PreferenceFragment;
michael@0	18	import android.preference.PreferenceScreen;
michael@0	19	import android.util.Log;
michael@0	20	import android.view.Menu;
michael@0	21	import android.view.MenuInflater;
michael@0	22	import android.view.ViewConfiguration;
michael@0	23
michael@0	24	/* A simple implementation of PreferenceFragment for large screen devices
michael@0	25	* This will strip category headers (so that they aren't shown to the user twice)
michael@0	26	* as well as initializing Gecko prefs when a fragment is shown.
michael@0	27	*/
michael@0	28	public class GeckoPreferenceFragment extends PreferenceFragment {
michael@0	29
michael@0	30	private static final String LOGTAG = "GeckoPreferenceFragment";
michael@0	31	private int mPrefsRequestId = 0;
michael@0	32
michael@0	33	@Override
michael@0	34	public void onCreate(Bundle savedInstanceState) {
michael@0	35	super.onCreate(savedInstanceState);
michael@0	36
michael@0	37	// Write prefs to our custom GeckoSharedPrefs file.
michael@0	38	getPreferenceManager().setSharedPreferencesName(GeckoSharedPrefs.APP_PREFS_NAME);
michael@0	39
michael@0	40	int res = getResource();
michael@0	41
michael@0	42	// Display a menu for Search preferences.
michael@0	43	if (res == R.xml.preferences_search) {
michael@0	44	setHasOptionsMenu(true);
michael@0	45	}
michael@0	46
michael@0	47	addPreferencesFromResource(res);
michael@0	48
michael@0	49	PreferenceScreen screen = getPreferenceScreen();
michael@0	50	setPreferenceScreen(screen);
michael@0	51	mPrefsRequestId = ((GeckoPreferences)getActivity()).setupPreferences(screen);
michael@0	52	}
michael@0	53
michael@0	54	/*
michael@0	55	* Get the resource from Fragment arguments and return it.
michael@0	56	*
michael@0	57	* If no resource can be found, return the resource id of the default preference screen.
michael@0	58	*/
michael@0	59	private int getResource() {
michael@0	60	int resid = 0;
michael@0	61
michael@0	62	String resourceName = getArguments().getString("resource");
michael@0	63	if (resourceName != null) {
michael@0	64	// Fetch resource id by resource name.
michael@0	65	resid = getActivity().getResources().getIdentifier(resourceName,
michael@0	66	"xml",
michael@0	67	getActivity().getPackageName());
michael@0	68	}
michael@0	69
michael@0	70	if (resid == 0) {
michael@0	71	// The resource was invalid. Use the default resource.
michael@0	72	Log.e(LOGTAG, "Failed to find resource: " + resourceName + ". Displaying default settings.");
michael@0	73
michael@0	74	boolean isMultiPane = ((PreferenceActivity) getActivity()).onIsMultiPane();
michael@0	75	resid = isMultiPane ? R.xml.preferences_customize_tablet : R.xml.preferences;
michael@0	76	}
michael@0	77
michael@0	78	return resid;
michael@0	79	}
michael@0	80
michael@0	81	@Override
michael@0	82	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
michael@0	83	super.onCreateOptionsMenu(menu, inflater);
michael@0	84	inflater.inflate(R.menu.preferences_search_menu, menu);
michael@0	85	}
michael@0	86
michael@0	87	@Override
michael@0	88	public void onDestroy() {
michael@0	89	super.onDestroy();
michael@0	90	if (mPrefsRequestId > 0) {
michael@0	91	PrefsHelper.removeObserver(mPrefsRequestId);
michael@0	92	}
michael@0	93	}
michael@0	94
michael@0	95	@Override
michael@0	96	public void onAttach(Activity activity) {
michael@0	97	super.onAttach(activity);
michael@0	98	showOverflowMenu(activity);
michael@0	99	}
michael@0	100
michael@0	101	/*
michael@0	102	* Force the overflow 3-dot menu to be displayed if it isn't already displayed.
michael@0	103	*
michael@0	104	* This is an ugly hack for 4.0+ Android devices that don't have a dedicated menu button
michael@0	105	* because Android does not provide a public API to display the ActionBar overflow menu.
michael@0	106	*/
michael@0	107	private void showOverflowMenu(Activity activity) {
michael@0	108	try {
michael@0	109	ViewConfiguration config = ViewConfiguration.get(activity);
michael@0	110	Field menuOverflow = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
michael@0	111	if (menuOverflow != null) {
michael@0	112	menuOverflow.setAccessible(true);
michael@0	113	menuOverflow.setBoolean(config, false);
michael@0	114	}
michael@0	115	} catch (Exception e) {
michael@0	116	Log.d(LOGTAG, "Failed to force overflow menu, ignoring.");
michael@0	117	}
michael@0	118	}
michael@0	119	}