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/*
* Copyright (C) 2017 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.phone;
import static android.app.StatusBarManager.NAVIGATION_HINT_BACK_ALT;
import static android.app.StatusBarManager.NAVIGATION_HINT_IME_SHOWN;
import static android.app.StatusBarManager.WINDOW_STATE_SHOWING;
import static android.app.StatusBarManager.windowStateToString;
import static com.android.systemui.OverviewProxyService.OverviewProxyListener;
import static com.android.systemui.shared.system.NavigationBarCompat.InteractionType;
import static com.android.systemui.statusbar.phone.BarTransitions.MODE_LIGHTS_OUT_TRANSPARENT;
import static com.android.systemui.statusbar.phone.BarTransitions.MODE_SEMI_TRANSPARENT;
import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARENT;
import static com.android.systemui.statusbar.phone.StatusBar.DEBUG_WINDOW_STATE;
import static com.android.systemui.statusbar.phone.StatusBar.dumpBarTransitions;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.annotation.IdRes;
import android.annotation.Nullable;
import android.app.ActivityManager;
import android.app.ActivityTaskManager;
import android.app.Fragment;
import android.app.IActivityTaskManager;
import android.app.StatusBarManager;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Configuration;
import android.database.ContentObserver;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.inputmethodservice.InputMethodService;
import android.os.Binder;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import android.telecom.TelecomManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.IRotationWatcher.Stub;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityManager.AccessibilityServicesStateChangeListener;
import androidx.annotation.VisibleForTesting;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.internal.util.LatencyTracker;
import com.android.systemui.Dependency;
import com.android.systemui.OverviewProxyService;
import com.android.systemui.R;
import com.android.systemui.SysUiServiceProvider;
import com.android.systemui.assist.AssistManager;
import com.android.systemui.fragments.FragmentHostManager;
import com.android.systemui.fragments.FragmentHostManager.FragmentListener;
import com.android.systemui.recents.Recents;
import com.android.systemui.shared.system.ActivityManagerWrapper;
import com.android.systemui.stackdivider.Divider;
import com.android.systemui.statusbar.CommandQueue;
import com.android.systemui.statusbar.CommandQueue.Callbacks;
import com.android.systemui.statusbar.notification.stack.StackStateAnimator;
import com.android.systemui.statusbar.phone.ContextualButton.ContextButtonListener;
import com.android.systemui.statusbar.policy.AccessibilityManagerWrapper;
import com.android.systemui.statusbar.policy.DeviceProvisionedController;
import com.android.systemui.statusbar.policy.KeyButtonView;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.List;
import java.util.Locale;
import java.util.function.Consumer;
/**
* Fragment containing the NavigationBarFragment. Contains logic for what happens
* on clicks and view states of the nav bar.
*/
public class NavigationBarFragment extends Fragment implements Callbacks {
public static final String TAG = "NavigationBar";
private static final boolean DEBUG = false;
private static final String EXTRA_DISABLE_STATE = "disabled_state";
private static final String EXTRA_DISABLE2_STATE = "disabled2_state";
/** Allow some time inbetween the long press for back and recents. */
private static final int LOCK_TO_APP_GESTURE_TOLERENCE = 200;
private final DeviceProvisionedController mDeviceProvisionedController =
Dependency.get(DeviceProvisionedController.class);
protected NavigationBarView mNavigationBarView = null;
protected AssistManager mAssistManager;
private int mNavigationBarWindowState = WINDOW_STATE_SHOWING;
private int mNavigationIconHints = 0;
private int mNavigationBarMode;
private AccessibilityManager mAccessibilityManager;
private MagnificationContentObserver mMagnificationObserver;
private ContentResolver mContentResolver;
private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class);
private int mDisabledFlags1;
private int mDisabledFlags2;
private StatusBar mStatusBar;
private Recents mRecents;
private Divider mDivider;
private WindowManager mWindowManager;
private CommandQueue mCommandQueue;
private long mLastLockToAppLongPress;
private Locale mLocale;
private int mLayoutDirection;
private int mSystemUiVisibility;
private LightBarController mLightBarController;
private OverviewProxyService mOverviewProxyService;
public boolean mHomeBlockedThisTouch;
private final OverviewProxyListener mOverviewProxyListener = new OverviewProxyListener() {
@Override
public void onConnectionChanged(boolean isConnected) {
mNavigationBarView.updateStates();
updateScreenPinningGestures();
}
@Override
public void onQuickStepStarted() {
// Use navbar dragging as a signal to hide the rotate button
mNavigationBarView.getRotateSuggestionButton().setRotateSuggestionButtonState(false);
// Hide the notifications panel when quick step starts
mStatusBar.collapsePanel(true /* animate */);
}
@Override
public void onInteractionFlagsChanged(@InteractionType int flags) {
mNavigationBarView.updateStates();
updateScreenPinningGestures();
}
@Override
public void onBackButtonAlphaChanged(float alpha, boolean animate) {
final ButtonDispatcher backButton = mNavigationBarView.getBackButton();
if (QuickStepController.shouldhideBackButton(getContext())) {
// If property was changed to hide/show back button, going home will trigger
// launcher to to change the back button alpha to reflect property change
backButton.setVisibility(View.GONE);
} else {
backButton.setVisibility(alpha > 0 ? View.VISIBLE : View.INVISIBLE);
backButton.setAlpha(alpha, animate);
}
}
};
private final ContextButtonListener mRotationButtonListener = new ContextButtonListener() {
@Override
public void onVisibilityChanged(ContextualButton button, boolean visible) {
if (visible) {
// If the button will actually become visible and the navbar is about to hide,
// tell the statusbar to keep it around for longer
mStatusBar.touchAutoHide();
}
}
};
// ----- Fragment Lifecycle Callbacks -----
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mCommandQueue = SysUiServiceProvider.getComponent(getContext(), CommandQueue.class);
mCommandQueue.addCallbacks(this);
mStatusBar = SysUiServiceProvider.getComponent(getContext(), StatusBar.class);
mRecents = SysUiServiceProvider.getComponent(getContext(), Recents.class);
mDivider = SysUiServiceProvider.getComponent(getContext(), Divider.class);
mWindowManager = getContext().getSystemService(WindowManager.class);
mAccessibilityManager = getContext().getSystemService(AccessibilityManager.class);
Dependency.get(AccessibilityManagerWrapper.class).addCallback(
mAccessibilityListener);
mContentResolver = getContext().getContentResolver();
mMagnificationObserver = new MagnificationContentObserver(
getContext().getMainThreadHandler());
mContentResolver.registerContentObserver(Settings.Secure.getUriFor(
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED), false,
mMagnificationObserver, UserHandle.USER_ALL);
if (savedInstanceState != null) {
mDisabledFlags1 = savedInstanceState.getInt(EXTRA_DISABLE_STATE, 0);
mDisabledFlags2 = savedInstanceState.getInt(EXTRA_DISABLE2_STATE, 0);
}
mAssistManager = Dependency.get(AssistManager.class);
mOverviewProxyService = Dependency.get(OverviewProxyService.class);
}
@Override
public void onDestroy() {
super.onDestroy();
mCommandQueue.removeCallbacks(this);
Dependency.get(AccessibilityManagerWrapper.class).removeCallback(
mAccessibilityListener);
mContentResolver.unregisterContentObserver(mMagnificationObserver);
}
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.navigation_bar, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mNavigationBarView = (NavigationBarView) view;
mNavigationBarView.setComponents(mStatusBar.getPanel());
mNavigationBarView.setDisabledFlags(mDisabledFlags1);
mNavigationBarView.setOnVerticalChangedListener(this::onVerticalChanged);
mNavigationBarView.setOnTouchListener(this::onNavigationTouch);
if (savedInstanceState != null) {
mNavigationBarView.getLightTransitionsController().restoreState(savedInstanceState);
}
prepareNavigationBarView();
checkNavBarModes();
setDisabled2Flags(mDisabledFlags2);
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_USER_SWITCHED);
getContext().registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null);
notifyNavigationBarScreenOn();
mOverviewProxyService.addCallback(mOverviewProxyListener);
RotationContextButton rotationButton = mNavigationBarView.getRotateSuggestionButton();
rotationButton.setListener(mRotationButtonListener);
rotationButton.addRotationCallback(mRotationWatcher);
// Reset user rotation pref to match that of the WindowManager if starting in locked mode
// This will automatically happen when switching from auto-rotate to locked mode
if (rotationButton.isRotationLocked()) {
final int winRotation = mWindowManager.getDefaultDisplay().getRotation();
rotationButton.setRotationLockedAtAngle(winRotation);
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
if (mNavigationBarView != null) {
mNavigationBarView.getBarTransitions().destroy();
mNavigationBarView.getLightTransitionsController().destroy(getContext());
}
mOverviewProxyService.removeCallback(mOverviewProxyListener);
getContext().unregisterReceiver(mBroadcastReceiver);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(EXTRA_DISABLE_STATE, mDisabledFlags1);
outState.putInt(EXTRA_DISABLE2_STATE, mDisabledFlags2);
if (mNavigationBarView != null) {
mNavigationBarView.getLightTransitionsController().saveState(outState);
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
final Locale locale = getContext().getResources().getConfiguration().locale;
final int ld = TextUtils.getLayoutDirectionFromLocale(locale);
if (!locale.equals(mLocale) || ld != mLayoutDirection) {
if (DEBUG) {
Log.v(TAG, String.format(
"config changed locale/LD: %s (%d) -> %s (%d)", mLocale, mLayoutDirection,
locale, ld));
}
mLocale = locale;
mLayoutDirection = ld;
refreshLayout(ld);
}
repositionNavigationBar();
}
@Override
public void dump(String prefix, FileDescriptor fd, PrintWriter pw, String[] args) {
if (mNavigationBarView != null) {
pw.print(" mNavigationBarWindowState=");
pw.println(windowStateToString(mNavigationBarWindowState));
pw.print(" mNavigationBarMode=");
pw.println(BarTransitions.modeToString(mNavigationBarMode));
dumpBarTransitions(pw, "mNavigationBarView", mNavigationBarView.getBarTransitions());
}
pw.print(" mNavigationBarView=");
if (mNavigationBarView == null) {
pw.println("null");
} else {
mNavigationBarView.dump(fd, pw, args);
}
}
// ----- CommandQueue Callbacks -----
@Override
public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
boolean showImeSwitcher) {
boolean imeShown = (vis & InputMethodService.IME_VISIBLE) != 0;
int hints = mNavigationIconHints;
switch (backDisposition) {
case InputMethodService.BACK_DISPOSITION_DEFAULT:
case InputMethodService.BACK_DISPOSITION_WILL_NOT_DISMISS:
case InputMethodService.BACK_DISPOSITION_WILL_DISMISS:
if (imeShown) {
hints |= NAVIGATION_HINT_BACK_ALT;
} else {
hints &= ~NAVIGATION_HINT_BACK_ALT;
}
break;
case InputMethodService.BACK_DISPOSITION_ADJUST_NOTHING:
hints &= ~NAVIGATION_HINT_BACK_ALT;
break;
}
if (showImeSwitcher) {
hints |= NAVIGATION_HINT_IME_SHOWN;
} else {
hints &= ~NAVIGATION_HINT_IME_SHOWN;
}
if (hints == mNavigationIconHints) return;
mNavigationIconHints = hints;
if (mNavigationBarView != null) {
mNavigationBarView.setNavigationIconHints(hints);
}
mStatusBar.checkBarModes();
}
@Override
public void topAppWindowChanged(boolean showMenu) {
if (mNavigationBarView != null) {
mNavigationBarView.setMenuVisibility(showMenu);
}
}
@Override
public void setWindowState(int window, int state) {
if (mNavigationBarView != null
&& window == StatusBarManager.WINDOW_NAVIGATION_BAR
&& mNavigationBarWindowState != state) {
mNavigationBarWindowState = state;
if (DEBUG_WINDOW_STATE) Log.d(TAG, "Navigation bar " + windowStateToString(state));
mNavigationBarView.getRotateSuggestionButton()
.onNavigationBarWindowVisibilityChange(state == WINDOW_STATE_SHOWING);
}
}
@Override
public void onRotationProposal(final int rotation, boolean isValid) {
final int winRotation = mWindowManager.getDefaultDisplay().getRotation();
final boolean rotateSuggestionsDisabled = RotationContextButton
.hasDisable2RotateSuggestionFlag(mDisabledFlags2);
if (RotationContextButton.DEBUG_ROTATION) {
Log.v(TAG, "onRotationProposal proposedRotation=" + Surface.rotationToString(rotation)
+ ", winRotation=" + Surface.rotationToString(winRotation)
+ ", isValid=" + isValid + ", mNavBarWindowState="
+ StatusBarManager.windowStateToString(mNavigationBarWindowState)
+ ", rotateSuggestionsDisabled=" + rotateSuggestionsDisabled
+ ", isRotateButtonVisible=" + (mNavigationBarView == null ? "null" :
mNavigationBarView.getRotateSuggestionButton().isVisible()));
}
// Respect the disabled flag, no need for action as flag change callback will handle hiding
if (rotateSuggestionsDisabled) return;
mNavigationBarView.getRotateSuggestionButton()
.onRotationProposal(rotation, winRotation, isValid);
}
// Injected from StatusBar at creation.
public void setCurrentSysuiVisibility(int systemUiVisibility) {
mSystemUiVisibility = systemUiVisibility;
final int barMode = mStatusBar.computeBarMode(0, mSystemUiVisibility,
View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT,
View.NAVIGATION_BAR_TRANSPARENT);
if (barMode != -1) {
mNavigationBarMode = barMode;
}
checkNavBarModes();
mStatusBar.touchAutoHide();
mLightBarController.onNavigationVisibilityChanged(mSystemUiVisibility, 0 /* mask */,
true /* nbModeChanged */, mNavigationBarMode);
}
@Override
public void setSystemUiVisibility(int vis, int fullscreenStackVis, int dockedStackVis,
int mask, Rect fullscreenStackBounds, Rect dockedStackBounds) {
final int oldVal = mSystemUiVisibility;
final int newVal = (oldVal & ~mask) | (vis & mask);
final int diff = newVal ^ oldVal;
boolean nbModeChanged = false;
if (diff != 0) {
mSystemUiVisibility = newVal;
// update navigation bar mode
final int nbMode = getView() == null
? -1 : mStatusBar.computeBarMode(oldVal, newVal,
View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT,
View.NAVIGATION_BAR_TRANSPARENT);
nbModeChanged = nbMode != -1;
if (nbModeChanged) {
if (mNavigationBarMode != nbMode) {
if (mNavigationBarMode == MODE_TRANSPARENT
|| mNavigationBarMode == MODE_LIGHTS_OUT_TRANSPARENT) {
mNavigationBarView.hideRecentsOnboarding();
}
mNavigationBarMode = nbMode;
checkNavBarModes();
}
mStatusBar.touchAutoHide();
}
}
mLightBarController.onNavigationVisibilityChanged(vis, mask, nbModeChanged,
mNavigationBarMode);
}
@Override
public void disable(int state1, int state2, boolean animate) {
// Navigation bar flags are in both state1 and state2.
final int masked = state1 & (StatusBarManager.DISABLE_HOME
| StatusBarManager.DISABLE_RECENT
| StatusBarManager.DISABLE_BACK
| StatusBarManager.DISABLE_SEARCH);
if (masked != mDisabledFlags1) {
mDisabledFlags1 = masked;
if (mNavigationBarView != null) mNavigationBarView.setDisabledFlags(state1);
updateScreenPinningGestures();
}
final int masked2 = state2 & (StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS);
if (masked2 != mDisabledFlags2) {
mDisabledFlags2 = masked2;
setDisabled2Flags(masked2);
}
}
private void setDisabled2Flags(int state2) {
// Method only called on change of disable2 flags
mNavigationBarView.getRotateSuggestionButton().onDisable2FlagChanged(state2);
}
// ----- Internal stuffz -----
private void refreshLayout(int layoutDirection) {
if (mNavigationBarView != null) {
mNavigationBarView.setLayoutDirection(layoutDirection);
}
}
private boolean shouldDisableNavbarGestures() {
return !mDeviceProvisionedController.isDeviceProvisioned()
|| (mDisabledFlags1 & StatusBarManager.DISABLE_SEARCH) != 0;
}
private void repositionNavigationBar() {
if (mNavigationBarView == null || !mNavigationBarView.isAttachedToWindow()) return;
prepareNavigationBarView();
mWindowManager.updateViewLayout((View) mNavigationBarView.getParent(),
((View) mNavigationBarView.getParent()).getLayoutParams());
}
private void updateScreenPinningGestures() {
if (mNavigationBarView == null) {
return;
}
// Change the cancel pin gesture to home and back if recents button is invisible
boolean recentsVisible = mNavigationBarView.isRecentsButtonVisible();
ButtonDispatcher backButton = mNavigationBarView.getBackButton();
if (recentsVisible) {
backButton.setOnLongClickListener(this::onLongPressBackRecents);
} else {
backButton.setOnLongClickListener(this::onLongPressBackHome);
}
}
private void notifyNavigationBarScreenOn() {
mNavigationBarView.updateNavButtonIcons();
}
private void prepareNavigationBarView() {
mNavigationBarView.reorient();
ButtonDispatcher recentsButton = mNavigationBarView.getRecentsButton();
recentsButton.setOnClickListener(this::onRecentsClick);
recentsButton.setOnTouchListener(this::onRecentsTouch);
recentsButton.setLongClickable(true);
recentsButton.setOnLongClickListener(this::onLongPressBackRecents);
ButtonDispatcher backButton = mNavigationBarView.getBackButton();
backButton.setLongClickable(true);
ButtonDispatcher homeButton = mNavigationBarView.getHomeButton();
homeButton.setOnTouchListener(this::onHomeTouch);
homeButton.setOnLongClickListener(this::onHomeLongClick);
ButtonDispatcher accessibilityButton = mNavigationBarView.getAccessibilityButton();
accessibilityButton.setOnClickListener(this::onAccessibilityClick);
accessibilityButton.setOnLongClickListener(this::onAccessibilityLongClick);
updateAccessibilityServicesState(mAccessibilityManager);
updateScreenPinningGestures();
}
private boolean onHomeTouch(View v, MotionEvent event) {
if (mHomeBlockedThisTouch && event.getActionMasked() != MotionEvent.ACTION_DOWN) {
return true;
}
// If an incoming call is ringing, HOME is totally disabled.
// (The user is already on the InCallUI at this point,
// and his ONLY options are to answer or reject the call.)
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mHomeBlockedThisTouch = false;
TelecomManager telecomManager =
getContext().getSystemService(TelecomManager.class);
if (telecomManager != null && telecomManager.isRinging()) {
if (mStatusBar.isKeyguardShowing()) {
Log.i(TAG, "Ignoring HOME; there's a ringing incoming call. " +
"No heads up");
mHomeBlockedThisTouch = true;
return true;
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mStatusBar.awakenDreams();
break;
}
return false;
}
private void onVerticalChanged(boolean isVertical) {
mStatusBar.setQsScrimEnabled(!isVertical);
}
private boolean onNavigationTouch(View v, MotionEvent event) {
mStatusBar.checkUserAutohide(event);
return false;
}
@VisibleForTesting
boolean onHomeLongClick(View v) {
if (!mNavigationBarView.isRecentsButtonVisible()
&& ActivityManagerWrapper.getInstance().isScreenPinningActive()) {
return onLongPressBackHome(v);
}
if (shouldDisableNavbarGestures()) {
return false;
}
mNavigationBarView.onNavigationButtonLongPress(v);
mMetricsLogger.action(MetricsEvent.ACTION_ASSIST_LONG_PRESS);
mAssistManager.startAssist(new Bundle() /* args */);
mStatusBar.awakenDreams();
if (mNavigationBarView != null) {
mNavigationBarView.abortCurrentGesture();
}
return true;
}
// additional optimization when we have software system buttons - start loading the recent
// tasks on touch down
private boolean onRecentsTouch(View v, MotionEvent event) {
int action = event.getAction() & MotionEvent.ACTION_MASK;
if (action == MotionEvent.ACTION_DOWN) {
mCommandQueue.preloadRecentApps();
} else if (action == MotionEvent.ACTION_CANCEL) {
mCommandQueue.cancelPreloadRecentApps();
} else if (action == MotionEvent.ACTION_UP) {
if (!v.isPressed()) {
mCommandQueue.cancelPreloadRecentApps();
}
}
return false;
}
private void onRecentsClick(View v) {
if (LatencyTracker.isEnabled(getContext())) {
LatencyTracker.getInstance(getContext()).onActionStart(
LatencyTracker.ACTION_TOGGLE_RECENTS);
}
mStatusBar.awakenDreams();
mCommandQueue.toggleRecentApps();
}
private boolean onLongPressBackHome(View v) {
mNavigationBarView.onNavigationButtonLongPress(v);
return onLongPressNavigationButtons(v, R.id.back, R.id.home);
}
private boolean onLongPressBackRecents(View v) {
mNavigationBarView.onNavigationButtonLongPress(v);
return onLongPressNavigationButtons(v, R.id.back, R.id.recent_apps);
}
/**
* This handles long-press of both back and recents/home. Back is the common button with
* combination of recents if it is visible or home if recents is invisible.
* They are handled together to capture them both being long-pressed
* at the same time to exit screen pinning (lock task).
*
* When accessibility mode is on, only a long-press from recents/home
* is required to exit.
*
* In all other circumstances we try to pass through long-press events
* for Back, so that apps can still use it. Which can be from two things.
* 1) Not currently in screen pinning (lock task).
* 2) Back is long-pressed without recents/home.
*/
private boolean onLongPressNavigationButtons(View v, @IdRes int btnId1, @IdRes int btnId2) {
try {
boolean sendBackLongPress = false;
IActivityTaskManager activityManager = ActivityTaskManager.getService();
boolean touchExplorationEnabled = mAccessibilityManager.isTouchExplorationEnabled();
boolean inLockTaskMode = activityManager.isInLockTaskMode();
if (inLockTaskMode && !touchExplorationEnabled) {
long time = System.currentTimeMillis();
// If we recently long-pressed the other button then they were
// long-pressed 'together'
if ((time - mLastLockToAppLongPress) < LOCK_TO_APP_GESTURE_TOLERENCE) {
activityManager.stopSystemLockTaskMode();
// When exiting refresh disabled flags.
mNavigationBarView.updateNavButtonIcons();
return true;
} else if (v.getId() == btnId1) {
ButtonDispatcher button = btnId2 == R.id.recent_apps
? mNavigationBarView.getRecentsButton()
: mNavigationBarView.getHomeButton();
if (!button.getCurrentView().isPressed()) {
// If we aren't pressing recents/home right now then they presses
// won't be together, so send the standard long-press action.
sendBackLongPress = true;
}
}
mLastLockToAppLongPress = time;
} else {
// If this is back still need to handle sending the long-press event.
if (v.getId() == btnId1) {
sendBackLongPress = true;
} else if (touchExplorationEnabled && inLockTaskMode) {
// When in accessibility mode a long press that is recents/home (not back)
// should stop lock task.
activityManager.stopSystemLockTaskMode();
// When exiting refresh disabled flags.
mNavigationBarView.updateNavButtonIcons();
return true;
} else if (v.getId() == btnId2) {
return btnId2 == R.id.recent_apps
? onLongPressRecents()
: onHomeLongClick(mNavigationBarView.getHomeButton().getCurrentView());
}
}
if (sendBackLongPress) {
KeyButtonView keyButtonView = (KeyButtonView) v;
keyButtonView.sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS);
keyButtonView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED);
return true;
}
} catch (RemoteException e) {
Log.d(TAG, "Unable to reach activity manager", e);
}
return false;
}
private boolean onLongPressRecents() {
if (mRecents == null || !ActivityTaskManager.supportsMultiWindow(getContext())
|| !mDivider.getView().getSnapAlgorithm().isSplitScreenFeasible()
|| ActivityManager.isLowRamDeviceStatic()
// If we are connected to the overview service, then disable the recents button
|| mOverviewProxyService.getProxy() != null) {
return false;
}
return mStatusBar.toggleSplitScreenMode(MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS,
MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS);
}
private void onAccessibilityClick(View v) {
mAccessibilityManager.notifyAccessibilityButtonClicked();
}
private boolean onAccessibilityLongClick(View v) {
Intent intent = new Intent(AccessibilityManager.ACTION_CHOOSE_ACCESSIBILITY_BUTTON);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
v.getContext().startActivityAsUser(intent, UserHandle.CURRENT);
return true;
}
private void updateAccessibilityServicesState(AccessibilityManager accessibilityManager) {
int requestingServices = 0;
try {
if (Settings.Secure.getIntForUser(mContentResolver,
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
UserHandle.USER_CURRENT) == 1) {
requestingServices++;
}
} catch (Settings.SettingNotFoundException e) {
}
boolean feedbackEnabled = false;
// AccessibilityManagerService resolves services for the current user since the local
// AccessibilityManager is created from a Context with the INTERACT_ACROSS_USERS permission
final List<AccessibilityServiceInfo> services =
accessibilityManager.getEnabledAccessibilityServiceList(
AccessibilityServiceInfo.FEEDBACK_ALL_MASK);
for (int i = services.size() - 1; i >= 0; --i) {
AccessibilityServiceInfo info = services.get(i);
if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) {
requestingServices++;
}
if (info.feedbackType != 0 && info.feedbackType !=
AccessibilityServiceInfo.FEEDBACK_GENERIC) {
feedbackEnabled = true;
}
}
mNavigationBarView.getRotateSuggestionButton()
.setAccessibilityFeedbackEnabled(feedbackEnabled);
final boolean showAccessibilityButton = requestingServices >= 1;
final boolean targetSelection = requestingServices >= 2;
mNavigationBarView.setAccessibilityButtonState(showAccessibilityButton, targetSelection);
}
// ----- Methods that StatusBar talks to (should be minimized) -----
public void setLightBarController(LightBarController lightBarController) {
mLightBarController = lightBarController;
mLightBarController.setNavigationBar(mNavigationBarView.getLightTransitionsController());
}
public boolean isSemiTransparent() {
return mNavigationBarMode == MODE_SEMI_TRANSPARENT;
}
public void disableAnimationsDuringHide(long delay) {
mNavigationBarView.setLayoutTransitionsEnabled(false);
mNavigationBarView.postDelayed(() -> mNavigationBarView.setLayoutTransitionsEnabled(true),
delay + StackStateAnimator.ANIMATION_DURATION_GO_TO_FULL_SHADE);
}
public BarTransitions getBarTransitions() {
return mNavigationBarView.getBarTransitions();
}
public void checkNavBarModes() {
mStatusBar.checkBarMode(mNavigationBarMode,
mNavigationBarWindowState, mNavigationBarView.getBarTransitions());
}
public void finishBarAnimations() {
mNavigationBarView.getBarTransitions().finishAnimations();
}
private final AccessibilityServicesStateChangeListener mAccessibilityListener =
this::updateAccessibilityServicesState;
private class MagnificationContentObserver extends ContentObserver {
public MagnificationContentObserver(Handler handler) {
super(handler);
}
@Override
public void onChange(boolean selfChange) {
NavigationBarFragment.this.updateAccessibilityServicesState(mAccessibilityManager);
}
}
private final Consumer<Integer> mRotationWatcher = rotation -> {
if (mNavigationBarView != null
&& mNavigationBarView.needsReorient(rotation)) {
repositionNavigationBar();
}
};
private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (Intent.ACTION_SCREEN_OFF.equals(action)
|| Intent.ACTION_SCREEN_ON.equals(action)) {
notifyNavigationBarScreenOn();
}
if (Intent.ACTION_USER_SWITCHED.equals(action)) {
// The accessibility settings may be different for the new user
updateAccessibilityServicesState(mAccessibilityManager);
};
}
};
public static View create(Context context, FragmentListener listener) {
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_NAVIGATION_BAR,
WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
| WindowManager.LayoutParams.FLAG_SLIPPERY,
PixelFormat.TRANSLUCENT);
lp.token = new Binder();
lp.setTitle("NavigationBar");
lp.accessibilityTitle = context.getString(R.string.nav_bar);
lp.windowAnimations = 0;
View navigationBarView = LayoutInflater.from(context).inflate(
R.layout.navigation_bar_window, null);
if (DEBUG) Log.v(TAG, "addNavigationBar: about to add " + navigationBarView);
if (navigationBarView == null) return null;
context.getSystemService(WindowManager.class).addView(navigationBarView, lp);
FragmentHostManager fragmentHost = FragmentHostManager.get(navigationBarView);
NavigationBarFragment fragment = new NavigationBarFragment();
fragmentHost.getFragmentManager().beginTransaction()
.replace(R.id.navigation_bar_frame, fragment, TAG)
.commit();
fragmentHost.addTagListener(TAG, listener);
return navigationBarView;
}
}