/*
* 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.annotation.NonNull;
import android.annotation.Nullable;
import android.app.AlertDialog;
import android.app.AppGlobals;
import android.app.Dialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.pm.IPackageManager;
import android.content.pm.PackageInfo;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Icon;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.hardware.input.InputManager;
import android.os.Handler;
import android.os.Looper;
import android.os.RemoteException;
import android.util.Log;
import android.util.SparseArray;
import android.view.ContextThemeWrapper;
import android.view.InputDevice;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.KeyboardShortcutGroup;
import android.view.KeyboardShortcutInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.AccessibilityDelegate;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager.KeyboardShortcutsReceiver;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.android.internal.app.AssistUtils;
import com.android.settingslib.Utils;
import com.android.systemui.R;
import com.android.systemui.recents.Recents;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import static android.content.Context.LAYOUT_INFLATER_SERVICE;
import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_YES;
import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
/**
* Contains functionality for handling keyboard shortcuts.
*/
public final class KeyboardShortcuts {
private static final String TAG = KeyboardShortcuts.class.getSimpleName();
private static final Object sLock = new Object();
private static KeyboardShortcuts sInstance;
private final SparseArray<String> mSpecialCharacterNames = new SparseArray<>();
private final SparseArray<String> mModifierNames = new SparseArray<>();
private final SparseArray<Drawable> mSpecialCharacterDrawables = new SparseArray<>();
private final SparseArray<Drawable> mModifierDrawables = new SparseArray<>();
private final Handler mHandler = new Handler(Looper.getMainLooper());
private final Context mContext;
private final IPackageManager mPackageManager;
private final OnClickListener mDialogCloseListener = new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dismissKeyboardShortcuts();
}
};
private final Comparator<KeyboardShortcutInfo> mApplicationItemsComparator =
new Comparator<KeyboardShortcutInfo>() {
@Override
public int compare(KeyboardShortcutInfo ksh1, KeyboardShortcutInfo ksh2) {
boolean ksh1ShouldBeLast = ksh1.getLabel() == null
|| ksh1.getLabel().toString().isEmpty();
boolean ksh2ShouldBeLast = ksh2.getLabel() == null
|| ksh2.getLabel().toString().isEmpty();
if (ksh1ShouldBeLast && ksh2ShouldBeLast) {
return 0;
}
if (ksh1ShouldBeLast) {
return 1;
}
if (ksh2ShouldBeLast) {
return -1;
}
return (ksh1.getLabel().toString()).compareToIgnoreCase(
ksh2.getLabel().toString());
}
};
private Dialog mKeyboardShortcutsDialog;
private KeyCharacterMap mKeyCharacterMap;
private KeyboardShortcuts(Context context) {
this.mContext = new ContextThemeWrapper(context, android.R.style.Theme_DeviceDefault_Light);
this.mPackageManager = AppGlobals.getPackageManager();
loadResources(context);
}
private static KeyboardShortcuts getInstance(Context context) {
if (sInstance == null) {
sInstance = new KeyboardShortcuts(context);
}
return sInstance;
}
public static void show(Context context, int deviceId) {
synchronized (sLock) {
if (sInstance != null && !sInstance.mContext.equals(context)) {
dismiss();
}
getInstance(context).showKeyboardShortcuts(deviceId);
}
}
public static void toggle(Context context, int deviceId) {
synchronized (sLock) {
if (isShowing()) {
dismiss();
} else {
show(context, deviceId);
}
}
}
public static void dismiss() {
synchronized (sLock) {
if (sInstance != null) {
sInstance.dismissKeyboardShortcuts();
sInstance = null;
}
}
}
private static boolean isShowing() {
return sInstance != null && sInstance.mKeyboardShortcutsDialog != null
&& sInstance.mKeyboardShortcutsDialog.isShowing();
}
private void loadResources(Context context) {
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_HOME, context.getString(R.string.keyboard_key_home));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_BACK, context.getString(R.string.keyboard_key_back));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DPAD_UP, context.getString(R.string.keyboard_key_dpad_up));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DPAD_DOWN, context.getString(R.string.keyboard_key_dpad_down));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DPAD_LEFT, context.getString(R.string.keyboard_key_dpad_left));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DPAD_RIGHT, context.getString(R.string.keyboard_key_dpad_right));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DPAD_CENTER, context.getString(R.string.keyboard_key_dpad_center));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_PERIOD, ".");
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_TAB, context.getString(R.string.keyboard_key_tab));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_SPACE, context.getString(R.string.keyboard_key_space));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_ENTER, context.getString(R.string.keyboard_key_enter));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_DEL, context.getString(R.string.keyboard_key_backspace));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE,
context.getString(R.string.keyboard_key_media_play_pause));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_MEDIA_STOP, context.getString(R.string.keyboard_key_media_stop));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_MEDIA_NEXT, context.getString(R.string.keyboard_key_media_next));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_PREVIOUS,
context.getString(R.string.keyboard_key_media_previous));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_REWIND,
context.getString(R.string.keyboard_key_media_rewind));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_FAST_FORWARD,
context.getString(R.string.keyboard_key_media_fast_forward));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_PAGE_UP, context.getString(R.string.keyboard_key_page_up));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_PAGE_DOWN, context.getString(R.string.keyboard_key_page_down));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_A,
context.getString(R.string.keyboard_key_button_template, "A"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_B,
context.getString(R.string.keyboard_key_button_template, "B"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_C,
context.getString(R.string.keyboard_key_button_template, "C"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_X,
context.getString(R.string.keyboard_key_button_template, "X"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_Y,
context.getString(R.string.keyboard_key_button_template, "Y"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_Z,
context.getString(R.string.keyboard_key_button_template, "Z"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_L1,
context.getString(R.string.keyboard_key_button_template, "L1"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_R1,
context.getString(R.string.keyboard_key_button_template, "R1"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_L2,
context.getString(R.string.keyboard_key_button_template, "L2"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_R2,
context.getString(R.string.keyboard_key_button_template, "R2"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_START,
context.getString(R.string.keyboard_key_button_template, "Start"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_SELECT,
context.getString(R.string.keyboard_key_button_template, "Select"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_MODE,
context.getString(R.string.keyboard_key_button_template, "Mode"));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_FORWARD_DEL, context.getString(R.string.keyboard_key_forward_del));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_ESCAPE, "Esc");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_SYSRQ, "SysRq");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_BREAK, "Break");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_SCROLL_LOCK, "Scroll Lock");
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_MOVE_HOME, context.getString(R.string.keyboard_key_move_home));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_MOVE_END, context.getString(R.string.keyboard_key_move_end));
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_INSERT, context.getString(R.string.keyboard_key_insert));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F1, "F1");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F2, "F2");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F3, "F3");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F4, "F4");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F5, "F5");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F6, "F6");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F7, "F7");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F8, "F8");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F9, "F9");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F10, "F10");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F11, "F11");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_F12, "F12");
mSpecialCharacterNames.put(
KeyEvent.KEYCODE_NUM_LOCK, context.getString(R.string.keyboard_key_num_lock));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_0,
context.getString(R.string.keyboard_key_numpad_template, "0"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_1,
context.getString(R.string.keyboard_key_numpad_template, "1"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_2,
context.getString(R.string.keyboard_key_numpad_template, "2"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_3,
context.getString(R.string.keyboard_key_numpad_template, "3"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_4,
context.getString(R.string.keyboard_key_numpad_template, "4"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_5,
context.getString(R.string.keyboard_key_numpad_template, "5"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_6,
context.getString(R.string.keyboard_key_numpad_template, "6"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_7,
context.getString(R.string.keyboard_key_numpad_template, "7"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_8,
context.getString(R.string.keyboard_key_numpad_template, "8"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_9,
context.getString(R.string.keyboard_key_numpad_template, "9"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_DIVIDE,
context.getString(R.string.keyboard_key_numpad_template, "/"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_MULTIPLY,
context.getString(R.string.keyboard_key_numpad_template, "*"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_SUBTRACT,
context.getString(R.string.keyboard_key_numpad_template, "-"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_ADD,
context.getString(R.string.keyboard_key_numpad_template, "+"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_DOT,
context.getString(R.string.keyboard_key_numpad_template, "."));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_COMMA,
context.getString(R.string.keyboard_key_numpad_template, ","));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_ENTER,
context.getString(R.string.keyboard_key_numpad_template,
context.getString(R.string.keyboard_key_enter)));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_EQUALS,
context.getString(R.string.keyboard_key_numpad_template, "="));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_LEFT_PAREN,
context.getString(R.string.keyboard_key_numpad_template, "("));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_RIGHT_PAREN,
context.getString(R.string.keyboard_key_numpad_template, ")"));
mSpecialCharacterNames.put(KeyEvent.KEYCODE_ZENKAKU_HANKAKU, "半角/全角");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_EISU, "英数");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_MUHENKAN, "無変換");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_HENKAN, "変換");
mSpecialCharacterNames.put(KeyEvent.KEYCODE_KATAKANA_HIRAGANA, "かな");
mModifierNames.put(KeyEvent.META_META_ON, "Meta");
mModifierNames.put(KeyEvent.META_CTRL_ON, "Ctrl");
mModifierNames.put(KeyEvent.META_ALT_ON, "Alt");
mModifierNames.put(KeyEvent.META_SHIFT_ON, "Shift");
mModifierNames.put(KeyEvent.META_SYM_ON, "Sym");
mModifierNames.put(KeyEvent.META_FUNCTION_ON, "Fn");
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_DEL, context.getDrawable(R.drawable.ic_ksh_key_backspace));
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_ENTER, context.getDrawable(R.drawable.ic_ksh_key_enter));
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_DPAD_UP, context.getDrawable(R.drawable.ic_ksh_key_up));
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_DPAD_RIGHT, context.getDrawable(R.drawable.ic_ksh_key_right));
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_DPAD_DOWN, context.getDrawable(R.drawable.ic_ksh_key_down));
mSpecialCharacterDrawables.put(
KeyEvent.KEYCODE_DPAD_LEFT, context.getDrawable(R.drawable.ic_ksh_key_left));
mModifierDrawables.put(
KeyEvent.META_META_ON, context.getDrawable(R.drawable.ic_ksh_key_meta));
}
/**
* Retrieves a {@link KeyCharacterMap} and assigns it to mKeyCharacterMap. If the given id is an
* existing device, that device's map is used. Otherwise, it checks first all available devices
* and if there is a full keyboard it uses that map, otherwise falls back to the Virtual
* Keyboard with its default map.
*/
private void retrieveKeyCharacterMap(int deviceId) {
final InputManager inputManager = InputManager.getInstance();
if (deviceId != -1) {
final InputDevice inputDevice = inputManager.getInputDevice(deviceId);
if (inputDevice != null) {
mKeyCharacterMap = inputDevice.getKeyCharacterMap();
return;
}
}
final int[] deviceIds = inputManager.getInputDeviceIds();
for (int i = 0; i < deviceIds.length; ++i) {
final InputDevice inputDevice = inputManager.getInputDevice(deviceIds[i]);
// -1 is the Virtual Keyboard, with the default key map. Use that one only as last
// resort.
if (inputDevice.getId() != -1 && inputDevice.isFullKeyboard()) {
mKeyCharacterMap = inputDevice.getKeyCharacterMap();
return;
}
}
final InputDevice inputDevice = inputManager.getInputDevice(-1);
mKeyCharacterMap = inputDevice.getKeyCharacterMap();
}
private void showKeyboardShortcuts(int deviceId) {
retrieveKeyCharacterMap(deviceId);
Recents.getSystemServices().requestKeyboardShortcuts(mContext,
new KeyboardShortcutsReceiver() {
@Override
public void onKeyboardShortcutsReceived(
final List<KeyboardShortcutGroup> result) {
result.add(getSystemShortcuts());
final KeyboardShortcutGroup appShortcuts = getDefaultApplicationShortcuts();
if (appShortcuts != null) {
result.add(appShortcuts);
}
showKeyboardShortcutsDialog(result);
}
}, deviceId);
}
private void dismissKeyboardShortcuts() {
if (mKeyboardShortcutsDialog != null) {
mKeyboardShortcutsDialog.dismiss();
mKeyboardShortcutsDialog = null;
}
}
private KeyboardShortcutGroup getSystemShortcuts() {
final KeyboardShortcutGroup systemGroup = new KeyboardShortcutGroup(
mContext.getString(R.string.keyboard_shortcut_group_system), true);
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_system_home),
KeyEvent.KEYCODE_ENTER,
KeyEvent.META_META_ON));
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_system_back),
KeyEvent.KEYCODE_DEL,
KeyEvent.META_META_ON));
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_system_recents),
KeyEvent.KEYCODE_TAB,
KeyEvent.META_ALT_ON));
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(
R.string.keyboard_shortcut_group_system_notifications),
KeyEvent.KEYCODE_N,
KeyEvent.META_META_ON));
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(
R.string.keyboard_shortcut_group_system_shortcuts_helper),
KeyEvent.KEYCODE_SLASH,
KeyEvent.META_META_ON));
systemGroup.addItem(new KeyboardShortcutInfo(
mContext.getString(
R.string.keyboard_shortcut_group_system_switch_input),
KeyEvent.KEYCODE_SPACE,
KeyEvent.META_META_ON));
return systemGroup;
}
private KeyboardShortcutGroup getDefaultApplicationShortcuts() {
final int userId = mContext.getUserId();
List<KeyboardShortcutInfo> keyboardShortcutInfoAppItems = new ArrayList<>();
// Assist.
final AssistUtils assistUtils = new AssistUtils(mContext);
final ComponentName assistComponent = assistUtils.getAssistComponentForUser(userId);
PackageInfo assistPackageInfo = null;
try {
assistPackageInfo = mPackageManager.getPackageInfo(
assistComponent.getPackageName(), 0, userId);
} catch (RemoteException e) {
Log.e(TAG, "PackageManagerService is dead");
}
if (assistPackageInfo != null) {
final Icon assistIcon = Icon.createWithResource(
assistPackageInfo.applicationInfo.packageName,
assistPackageInfo.applicationInfo.icon);
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_assist),
assistIcon,
KeyEvent.KEYCODE_UNKNOWN,
KeyEvent.META_META_ON));
}
// Browser.
final Icon browserIcon = getIconForIntentCategory(Intent.CATEGORY_APP_BROWSER, userId);
if (browserIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_browser),
browserIcon,
KeyEvent.KEYCODE_B,
KeyEvent.META_META_ON));
}
// Contacts.
final Icon contactsIcon = getIconForIntentCategory(Intent.CATEGORY_APP_CONTACTS, userId);
if (contactsIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_contacts),
contactsIcon,
KeyEvent.KEYCODE_C,
KeyEvent.META_META_ON));
}
// Email.
final Icon emailIcon = getIconForIntentCategory(Intent.CATEGORY_APP_EMAIL, userId);
if (emailIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_email),
emailIcon,
KeyEvent.KEYCODE_E,
KeyEvent.META_META_ON));
}
// Messaging.
final Icon messagingIcon = getIconForIntentCategory(Intent.CATEGORY_APP_MESSAGING, userId);
if (messagingIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_im),
messagingIcon,
KeyEvent.KEYCODE_T,
KeyEvent.META_META_ON));
}
// Music.
final Icon musicIcon = getIconForIntentCategory(Intent.CATEGORY_APP_MUSIC, userId);
if (musicIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_music),
musicIcon,
KeyEvent.KEYCODE_P,
KeyEvent.META_META_ON));
}
// Calendar.
final Icon calendarIcon = getIconForIntentCategory(Intent.CATEGORY_APP_CALENDAR, userId);
if (calendarIcon != null) {
keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo(
mContext.getString(R.string.keyboard_shortcut_group_applications_calendar),
calendarIcon,
KeyEvent.KEYCODE_L,
KeyEvent.META_META_ON));
}
final int itemsSize = keyboardShortcutInfoAppItems.size();
if (itemsSize == 0) {
return null;
}
// Sorts by label, case insensitive with nulls and/or empty labels last.
Collections.sort(keyboardShortcutInfoAppItems, mApplicationItemsComparator);
return new KeyboardShortcutGroup(
mContext.getString(R.string.keyboard_shortcut_group_applications),
keyboardShortcutInfoAppItems,
true);
}
private Icon getIconForIntentCategory(String intentCategory, int userId) {
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(intentCategory);
final PackageInfo packageInfo = getPackageInfoForIntent(intent, userId);
if (packageInfo != null && packageInfo.applicationInfo.icon != 0) {
return Icon.createWithResource(
packageInfo.applicationInfo.packageName,
packageInfo.applicationInfo.icon);
}
return null;
}
private PackageInfo getPackageInfoForIntent(Intent intent, int userId) {
try {
ResolveInfo handler;
handler = mPackageManager.resolveIntent(
intent, intent.resolveTypeIfNeeded(mContext.getContentResolver()), 0, userId);
if (handler == null || handler.activityInfo == null) {
return null;
}
return mPackageManager.getPackageInfo(handler.activityInfo.packageName, 0, userId);
} catch (RemoteException e) {
Log.e(TAG, "PackageManagerService is dead", e);
return null;
}
}
private void showKeyboardShortcutsDialog(
final List<KeyboardShortcutGroup> keyboardShortcutGroups) {
// Need to post on the main thread.
mHandler.post(new Runnable() {
@Override
public void run() {
handleShowKeyboardShortcuts(keyboardShortcutGroups);
}
});
}
private void handleShowKeyboardShortcuts(List<KeyboardShortcutGroup> keyboardShortcutGroups) {
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(mContext);
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
LAYOUT_INFLATER_SERVICE);
final View keyboardShortcutsView = inflater.inflate(
R.layout.keyboard_shortcuts_view, null);
populateKeyboardShortcuts((LinearLayout) keyboardShortcutsView.findViewById(
R.id.keyboard_shortcuts_container), keyboardShortcutGroups);
dialogBuilder.setView(keyboardShortcutsView);
dialogBuilder.setPositiveButton(R.string.quick_settings_done, mDialogCloseListener);
mKeyboardShortcutsDialog = dialogBuilder.create();
mKeyboardShortcutsDialog.setCanceledOnTouchOutside(true);
Window keyboardShortcutsWindow = mKeyboardShortcutsDialog.getWindow();
keyboardShortcutsWindow.setType(TYPE_SYSTEM_DIALOG);
mKeyboardShortcutsDialog.show();
}
private void populateKeyboardShortcuts(LinearLayout keyboardShortcutsLayout,
List<KeyboardShortcutGroup> keyboardShortcutGroups) {
LayoutInflater inflater = LayoutInflater.from(mContext);
final int keyboardShortcutGroupsSize = keyboardShortcutGroups.size();
TextView shortcutsKeyView = (TextView) inflater.inflate(
R.layout.keyboard_shortcuts_key_view, null, false);
shortcutsKeyView.measure(
View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
final int shortcutKeyTextItemMinWidth = shortcutsKeyView.getMeasuredHeight();
// Needed to be able to scale the image items to the same height as the text items.
final int shortcutKeyIconItemHeightWidth = shortcutsKeyView.getMeasuredHeight()
- shortcutsKeyView.getPaddingTop()
- shortcutsKeyView.getPaddingBottom();
for (int i = 0; i < keyboardShortcutGroupsSize; i++) {
KeyboardShortcutGroup group = keyboardShortcutGroups.get(i);
TextView categoryTitle = (TextView) inflater.inflate(
R.layout.keyboard_shortcuts_category_title, keyboardShortcutsLayout, false);
categoryTitle.setText(group.getLabel());
categoryTitle.setTextColor(group.isSystemGroup()
? Utils.getColorAccent(mContext)
: mContext.getColor(R.color.ksh_application_group_color));
keyboardShortcutsLayout.addView(categoryTitle);
LinearLayout shortcutContainer = (LinearLayout) inflater.inflate(
R.layout.keyboard_shortcuts_container, keyboardShortcutsLayout, false);
final int itemsSize = group.getItems().size();
for (int j = 0; j < itemsSize; j++) {
KeyboardShortcutInfo info = group.getItems().get(j);
List<StringDrawableContainer> shortcutKeys = getHumanReadableShortcutKeys(info);
if (shortcutKeys == null) {
// Ignore shortcuts we can't display keys for.
Log.w(TAG, "Keyboard Shortcut contains unsupported keys, skipping.");
continue;
}
View shortcutView = inflater.inflate(R.layout.keyboard_shortcut_app_item,
shortcutContainer, false);
if (info.getIcon() != null) {
ImageView shortcutIcon = (ImageView) shortcutView
.findViewById(R.id.keyboard_shortcuts_icon);
shortcutIcon.setImageIcon(info.getIcon());
shortcutIcon.setVisibility(View.VISIBLE);
}
TextView shortcutKeyword = (TextView) shortcutView
.findViewById(R.id.keyboard_shortcuts_keyword);
shortcutKeyword.setText(info.getLabel());
if (info.getIcon() != null) {
RelativeLayout.LayoutParams lp =
(RelativeLayout.LayoutParams) shortcutKeyword.getLayoutParams();
lp.removeRule(RelativeLayout.ALIGN_PARENT_START);
shortcutKeyword.setLayoutParams(lp);
}
ViewGroup shortcutItemsContainer = (ViewGroup) shortcutView
.findViewById(R.id.keyboard_shortcuts_item_container);
final int shortcutKeysSize = shortcutKeys.size();
for (int k = 0; k < shortcutKeysSize; k++) {
StringDrawableContainer shortcutRepresentation = shortcutKeys.get(k);
if (shortcutRepresentation.mDrawable != null) {
ImageView shortcutKeyIconView = (ImageView) inflater.inflate(
R.layout.keyboard_shortcuts_key_icon_view, shortcutItemsContainer,
false);
Bitmap bitmap = Bitmap.createBitmap(shortcutKeyIconItemHeightWidth,
shortcutKeyIconItemHeightWidth, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
shortcutRepresentation.mDrawable.setBounds(0, 0, canvas.getWidth(),
canvas.getHeight());
shortcutRepresentation.mDrawable.draw(canvas);
shortcutKeyIconView.setImageBitmap(bitmap);
shortcutKeyIconView.setImportantForAccessibility(
IMPORTANT_FOR_ACCESSIBILITY_YES);
shortcutKeyIconView.setAccessibilityDelegate(
new ShortcutKeyAccessibilityDelegate(
shortcutRepresentation.mString));
shortcutItemsContainer.addView(shortcutKeyIconView);
} else if (shortcutRepresentation.mString != null) {
TextView shortcutKeyTextView = (TextView) inflater.inflate(
R.layout.keyboard_shortcuts_key_view, shortcutItemsContainer,
false);
shortcutKeyTextView.setMinimumWidth(shortcutKeyTextItemMinWidth);
shortcutKeyTextView.setText(shortcutRepresentation.mString);
shortcutKeyTextView.setAccessibilityDelegate(
new ShortcutKeyAccessibilityDelegate(
shortcutRepresentation.mString));
shortcutItemsContainer.addView(shortcutKeyTextView);
}
}
shortcutContainer.addView(shortcutView);
}
keyboardShortcutsLayout.addView(shortcutContainer);
if (i < keyboardShortcutGroupsSize - 1) {
View separator = inflater.inflate(
R.layout.keyboard_shortcuts_category_separator, keyboardShortcutsLayout,
false);
keyboardShortcutsLayout.addView(separator);
}
}
}
private List<StringDrawableContainer> getHumanReadableShortcutKeys(KeyboardShortcutInfo info) {
List<StringDrawableContainer> shortcutKeys = getHumanReadableModifiers(info);
if (shortcutKeys == null) {
return null;
}
String shortcutKeyString = null;
Drawable shortcutKeyDrawable = null;
if (info.getBaseCharacter() > Character.MIN_VALUE) {
shortcutKeyString = String.valueOf(info.getBaseCharacter());
} else if (mSpecialCharacterDrawables.get(info.getKeycode()) != null) {
shortcutKeyDrawable = mSpecialCharacterDrawables.get(info.getKeycode());
shortcutKeyString = mSpecialCharacterNames.get(info.getKeycode());
} else if (mSpecialCharacterNames.get(info.getKeycode()) != null) {
shortcutKeyString = mSpecialCharacterNames.get(info.getKeycode());
} else {
// Special case for shortcuts with no base key or keycode.
if (info.getKeycode() == KeyEvent.KEYCODE_UNKNOWN) {
return shortcutKeys;
}
char displayLabel = mKeyCharacterMap.getDisplayLabel(info.getKeycode());
if (displayLabel != 0) {
shortcutKeyString = String.valueOf(displayLabel);
} else {
return null;
}
}
if (shortcutKeyString != null) {
shortcutKeys.add(new StringDrawableContainer(shortcutKeyString, shortcutKeyDrawable));
} else {
Log.w(TAG, "Keyboard Shortcut does not have a text representation, skipping.");
}
return shortcutKeys;
}
private List<StringDrawableContainer> getHumanReadableModifiers(KeyboardShortcutInfo info) {
final List<StringDrawableContainer> shortcutKeys = new ArrayList<>();
int modifiers = info.getModifiers();
if (modifiers == 0) {
return shortcutKeys;
}
for(int i = 0; i < mModifierNames.size(); ++i) {
final int supportedModifier = mModifierNames.keyAt(i);
if ((modifiers & supportedModifier) != 0) {
shortcutKeys.add(new StringDrawableContainer(
mModifierNames.get(supportedModifier),
mModifierDrawables.get(supportedModifier)));
modifiers &= ~supportedModifier;
}
}
if (modifiers != 0) {
// Remaining unsupported modifiers, don't show anything.
return null;
}
return shortcutKeys;
}
private final class ShortcutKeyAccessibilityDelegate extends AccessibilityDelegate {
private String mContentDescription;
ShortcutKeyAccessibilityDelegate(String contentDescription) {
mContentDescription = contentDescription;
}
@Override
public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(host, info);
if (mContentDescription != null) {
info.setContentDescription(mContentDescription.toLowerCase());
}
}
}
private static final class StringDrawableContainer {
@NonNull
public String mString;
@Nullable
public Drawable mDrawable;
StringDrawableContainer(String string, Drawable drawable) {
mString = string;
mDrawable = drawable;
}
}
}