| /* |
| * Copyright (C) 2016 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.systemui.statusbar; |
| |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.content.Context; |
| import android.graphics.drawable.ColorDrawable; |
| import android.os.Handler; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.KeyboardShortcutGroup; |
| import android.view.KeyboardShortcutInfo; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.Window; |
| import android.view.WindowManager; |
| import android.view.WindowManager.KeyboardShortcutsReceiver; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.recents.Recents; |
| |
| import java.util.List; |
| |
| import static android.content.Context.LAYOUT_INFLATER_SERVICE; |
| import static android.graphics.Color.TRANSPARENT; |
| import static android.view.Gravity.TOP; |
| import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG; |
| |
| /** |
| * Contains functionality for handling keyboard shortcuts. |
| */ |
| public class KeyboardShortcuts { |
| private static final String TAG = "KeyboardShortcuts"; |
| |
| private Dialog mKeyboardShortcutsDialog; |
| |
| public KeyboardShortcuts() {} |
| |
| public void toggleKeyboardShortcuts(final Context context) { |
| if (mKeyboardShortcutsDialog == null) { |
| Recents.getSystemServices().requestKeyboardShortcuts(context, |
| new KeyboardShortcutsReceiver() { |
| @Override |
| public void onKeyboardShortcutsReceived( |
| final List<KeyboardShortcutGroup> result) { |
| KeyboardShortcutGroup systemGroup = new KeyboardShortcutGroup( |
| context.getString(R.string.keyboard_shortcut_group_system)); |
| systemGroup.addItem(new KeyboardShortcutInfo( |
| context.getString(R.string.keyboard_shortcut_group_system_home), |
| '\u2386', KeyEvent.META_META_ON)); |
| systemGroup.addItem(new KeyboardShortcutInfo( |
| context.getString(R.string.keyboard_shortcut_group_system_back), |
| '\u007F', KeyEvent.META_META_ON)); |
| systemGroup.addItem(new KeyboardShortcutInfo( |
| context.getString(R.string.keyboard_shortcut_group_system_recents), |
| '\u0009', KeyEvent.META_ALT_ON)); |
| result.add(systemGroup); |
| Log.i(TAG, "Keyboard shortcuts received: " + String.valueOf(result)); |
| showKeyboardShortcutsDialog(context); |
| } |
| }); |
| } else { |
| dismissKeyboardShortcutsDialog(); |
| } |
| } |
| |
| private void showKeyboardShortcutsDialog(Context context) { |
| // Create dialog. |
| AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context); |
| LayoutInflater inflater = (LayoutInflater) context.getSystemService( |
| LAYOUT_INFLATER_SERVICE); |
| final View keyboardShortcutsView = inflater.inflate( |
| R.layout.keyboard_shortcuts_view, null); |
| |
| populateKeyboardShortcuts(keyboardShortcutsView.findViewById( |
| R.id.keyboard_shortcuts_wrapper)); |
| dialogBuilder.setView(keyboardShortcutsView); |
| mKeyboardShortcutsDialog = dialogBuilder.create(); |
| mKeyboardShortcutsDialog.setCanceledOnTouchOutside(true); |
| |
| // Setup window. |
| Window keyboardShortcutsWindow = mKeyboardShortcutsDialog.getWindow(); |
| keyboardShortcutsWindow.setType(TYPE_SYSTEM_DIALOG); |
| keyboardShortcutsWindow.setBackgroundDrawable( |
| new ColorDrawable(TRANSPARENT)); |
| keyboardShortcutsWindow.setGravity(TOP); |
| keyboardShortcutsView.post(new Runnable() { |
| public void run() { |
| mKeyboardShortcutsDialog.show(); |
| } |
| }); |
| } |
| |
| public void dismissKeyboardShortcutsDialog() { |
| if (mKeyboardShortcutsDialog != null) { |
| mKeyboardShortcutsDialog.dismiss(); |
| mKeyboardShortcutsDialog = null; |
| } |
| } |
| |
| /** |
| * @return {@code true} if the keyboard shortcuts have been successfully populated. |
| */ |
| private boolean populateKeyboardShortcuts(View keyboardShortcutsLayout) { |
| // TODO: Populate shortcuts. |
| return true; |
| } |
| } |