Add UI to select multiple keyboard layouts.
Bug: 6405203 Change-Id: I27ca4630aebcb39b83298d37d8fb3f4ef0080317
This commit is contained in:
Jeff Brown
@@ -0,0 +1,354 @@
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/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.inputmethod;
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import com.android.settings.R;
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import com.android.settings.Settings.KeyboardLayoutPickerActivity;
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import android.app.AlertDialog;
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import android.app.Activity;
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import android.app.Dialog;
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import android.app.DialogFragment;
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import android.app.LoaderManager.LoaderCallbacks;
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import android.content.AsyncTaskLoader;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.Loader;
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import android.content.res.Resources;
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import android.hardware.input.InputManager;
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import android.hardware.input.KeyboardLayout;
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import android.hardware.input.InputManager.InputDeviceListener;
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import android.os.Bundle;
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import android.view.InputDevice;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ArrayAdapter;
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import android.widget.CheckedTextView;
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import android.widget.RadioButton;
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import android.widget.TextView;
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import java.util.ArrayList;
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import java.util.Collections;
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public class KeyboardLayoutDialogFragment extends DialogFragment
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implements InputDeviceListener, LoaderCallbacks<KeyboardLayoutDialogFragment.Keyboards> {
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private static final String KEY_INPUT_DEVICE_DESCRIPTOR = "inputDeviceDescriptor";
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private String mInputDeviceDescriptor;
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private int mInputDeviceId = -1;
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private InputManager mIm;
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private KeyboardLayoutAdapter mAdapter;
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public KeyboardLayoutDialogFragment() {
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}
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public KeyboardLayoutDialogFragment(String inputDeviceDescriptor) {
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mInputDeviceDescriptor = inputDeviceDescriptor;
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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Context context = activity.getBaseContext();
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mIm = (InputManager)context.getSystemService(Context.INPUT_SERVICE);
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mAdapter = new KeyboardLayoutAdapter(context);
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (savedInstanceState != null) {
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mInputDeviceDescriptor = savedInstanceState.getString(KEY_INPUT_DEVICE_DESCRIPTOR);
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}
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getLoaderManager().initLoader(0, null, this);
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putString(KEY_INPUT_DEVICE_DESCRIPTOR, mInputDeviceDescriptor);
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}
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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Context context = getActivity();
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LayoutInflater inflater = LayoutInflater.from(context);
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AlertDialog.Builder builder = new AlertDialog.Builder(context)
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.setTitle(R.string.keyboard_layout_dialog_title)
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.setPositiveButton(R.string.keyboard_layout_dialog_setup_button,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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onSetupLayoutsButtonClicked();
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}
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})
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.setSingleChoiceItems(mAdapter, -1,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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onKeyboardLayoutClicked(which);
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}
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})
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.setView(inflater.inflate(R.layout.keyboard_layout_dialog_switch_hint, null));
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updateSwitchHintVisibility();
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return builder.create();
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}
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@Override
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public void onResume() {
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super.onResume();
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mIm.registerInputDeviceListener(this, null);
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InputDevice inputDevice = mIm.getInputDeviceByDescriptor(mInputDeviceDescriptor);
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if (inputDevice == null) {
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dismiss();
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return;
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}
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mInputDeviceId = inputDevice.getId();
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}
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@Override
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public void onPause() {
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mIm.unregisterInputDeviceListener(this);
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mInputDeviceId = -1;
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super.onPause();
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}
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@Override
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public void onCancel(DialogInterface dialog) {
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super.onCancel(dialog);
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dismiss();
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}
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private void onSetupLayoutsButtonClicked() {
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((OnSetupKeyboardLayoutsListener)getTargetFragment()).onSetupKeyboardLayouts(
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mInputDeviceDescriptor);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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show(getActivity().getFragmentManager(), "layout");
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}
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private void onKeyboardLayoutClicked(int which) {
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if (which >= 0 && which < mAdapter.getCount()) {
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KeyboardLayout keyboardLayout = mAdapter.getItem(which);
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if (keyboardLayout != null) {
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mIm.setCurrentKeyboardLayoutForInputDevice(mInputDeviceDescriptor,
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keyboardLayout.getDescriptor());
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}
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dismiss();
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}
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}
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@Override
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public Loader<Keyboards> onCreateLoader(int id, Bundle args) {
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return new KeyboardLayoutLoader(getActivity().getBaseContext(), mInputDeviceDescriptor);
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}
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@Override
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public void onLoadFinished(Loader<Keyboards> loader, Keyboards data) {
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mAdapter.clear();
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mAdapter.addAll(data.keyboardLayouts);
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mAdapter.setCheckedItem(data.current);
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AlertDialog dialog = (AlertDialog)getDialog();
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if (dialog != null) {
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dialog.getListView().setItemChecked(data.current, true);
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}
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updateSwitchHintVisibility();
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}
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@Override
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public void onLoaderReset(Loader<Keyboards> loader) {
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mAdapter.clear();
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updateSwitchHintVisibility();
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}
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@Override
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public void onInputDeviceAdded(int deviceId) {
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}
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@Override
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public void onInputDeviceChanged(int deviceId) {
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if (mInputDeviceId >= 0 && deviceId == mInputDeviceId) {
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getLoaderManager().restartLoader(0, null, this);
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}
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}
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@Override
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public void onInputDeviceRemoved(int deviceId) {
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if (mInputDeviceId >= 0 && deviceId == mInputDeviceId) {
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dismiss();
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}
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}
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private void updateSwitchHintVisibility() {
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AlertDialog dialog = (AlertDialog)getDialog();
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if (dialog != null) {
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View customPanel = dialog.findViewById(com.android.internal.R.id.customPanel);
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customPanel.setVisibility(mAdapter.getCount() > 1 ? View.VISIBLE : View.GONE);
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}
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}
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private static final class KeyboardLayoutAdapter extends ArrayAdapter<KeyboardLayout> {
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private final LayoutInflater mInflater;
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private int mCheckedItem = -1;
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public KeyboardLayoutAdapter(Context context) {
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super(context, com.android.internal.R.layout.simple_list_item_2_single_choice);
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mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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}
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public void setCheckedItem(int position) {
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mCheckedItem = position;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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KeyboardLayout item = getItem(position);
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String label, collection;
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if (item != null) {
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label = item.getLabel();
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collection = item.getCollection();
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} else {
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label = getContext().getString(R.string.keyboard_layout_default_label);
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collection = "";
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}
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boolean checked = (position == mCheckedItem);
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if (collection.isEmpty()) {
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return inflateOneLine(convertView, parent, label, checked);
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} else {
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return inflateTwoLine(convertView, parent, label, collection, checked);
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}
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}
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private View inflateOneLine(View convertView, ViewGroup parent,
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String label, boolean checked) {
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View view = convertView;
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if (view == null || isTwoLine(view)) {
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view = mInflater.inflate(
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com.android.internal.R.layout.simple_list_item_single_choice,
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parent, false);
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setTwoLine(view, false);
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}
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CheckedTextView headline = (CheckedTextView) view.findViewById(android.R.id.text1);
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headline.setText(label);
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headline.setChecked(checked);
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return view;
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}
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private View inflateTwoLine(View convertView, ViewGroup parent,
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String label, String collection, boolean checked) {
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View view = convertView;
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if (view == null || !isTwoLine(view)) {
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view = mInflater.inflate(
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com.android.internal.R.layout.simple_list_item_2_single_choice,
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parent, false);
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setTwoLine(view, true);
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}
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TextView headline = (TextView) view.findViewById(android.R.id.text1);
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TextView subText = (TextView) view.findViewById(android.R.id.text2);
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RadioButton radioButton =
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(RadioButton)view.findViewById(com.android.internal.R.id.radio);
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headline.setText(label);
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subText.setText(collection);
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radioButton.setChecked(checked);
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return view;
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}
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private static boolean isTwoLine(View view) {
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return view.getTag() == Boolean.TRUE;
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}
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private static void setTwoLine(View view, boolean twoLine) {
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view.setTag(Boolean.valueOf(twoLine));
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}
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}
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private static final class KeyboardLayoutLoader extends AsyncTaskLoader<Keyboards> {
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private final String mInputDeviceDescriptor;
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public KeyboardLayoutLoader(Context context, String inputDeviceDescriptor) {
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super(context);
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mInputDeviceDescriptor = inputDeviceDescriptor;
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}
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@Override
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public Keyboards loadInBackground() {
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Keyboards keyboards = new Keyboards();
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InputManager im = (InputManager)getContext().getSystemService(Context.INPUT_SERVICE);
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String[] keyboardLayoutDescriptors = im.getKeyboardLayoutsForInputDevice(
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mInputDeviceDescriptor);
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for (String keyboardLayoutDescriptor : keyboardLayoutDescriptors) {
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KeyboardLayout keyboardLayout = im.getKeyboardLayout(keyboardLayoutDescriptor);
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if (keyboardLayout != null) {
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keyboards.keyboardLayouts.add(keyboardLayout);
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}
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}
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Collections.sort(keyboards.keyboardLayouts);
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String currentKeyboardLayoutDescriptor =
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im.getCurrentKeyboardLayoutForInputDevice(mInputDeviceDescriptor);
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if (currentKeyboardLayoutDescriptor != null) {
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final int numKeyboardLayouts = keyboards.keyboardLayouts.size();
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for (int i = 0; i < numKeyboardLayouts; i++) {
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if (keyboards.keyboardLayouts.get(i).getDescriptor().equals(
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currentKeyboardLayoutDescriptor)) {
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keyboards.current = i;
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break;
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}
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}
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}
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if (keyboards.keyboardLayouts.isEmpty()) {
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keyboards.keyboardLayouts.add(null); // default layout
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keyboards.current = 0;
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}
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return keyboards;
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}
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@Override
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protected void onStartLoading() {
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super.onStartLoading();
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forceLoad();
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}
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@Override
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protected void onStopLoading() {
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super.onStopLoading();
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cancelLoad();
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}
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}
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public static final class Keyboards {
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public final ArrayList<KeyboardLayout> keyboardLayouts = new ArrayList<KeyboardLayout>();
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public int current = -1;
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}
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public interface OnSetupKeyboardLayoutsListener {
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public void onSetupKeyboardLayouts(String inputDeviceDescriptor);
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}
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}
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Block a user