| /* |
| * 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.internal.view.RotationPolicy.NATURAL_ROTATION; |
| |
| import static com.android.systemui.shared.system.NavigationBarCompat.InteractionType; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_SEMI_TRANSPARENT; |
| import static com.android.systemui.statusbar.phone.StatusBar.DEBUG_WINDOW_STATE; |
| import static com.android.systemui.statusbar.phone.StatusBar.dumpBarTransitions; |
| import static com.android.systemui.OverviewProxyService.OverviewProxyListener; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ObjectAnimator; |
| import android.annotation.IdRes; |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerNative; |
| import android.app.Fragment; |
| import android.app.IActivityManager; |
| 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.graphics.drawable.AnimatedVectorDrawable; |
| import android.inputmethodservice.InputMethodService; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.support.annotation.VisibleForTesting; |
| 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.WindowManagerGlobal; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.accessibility.AccessibilityManager.AccessibilityServicesStateChangeListener; |
| |
| 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.Interpolators; |
| 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.recents.misc.SysUiTaskStackChangeListener; |
| 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.policy.AccessibilityManagerWrapper; |
| import com.android.systemui.statusbar.policy.KeyButtonDrawable; |
| import com.android.systemui.statusbar.policy.KeyButtonView; |
| import com.android.systemui.statusbar.policy.RotationLockController; |
| import com.android.systemui.statusbar.stack.StackStateAnimator; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Optional; |
| |
| /** |
| * 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 boolean DEBUG_ROTATION = true; |
| private static final String EXTRA_DISABLE_STATE = "disabled_state"; |
| private static final String EXTRA_DISABLE2_STATE = "disabled2_state"; |
| |
| private final static int BUTTON_FADE_IN_OUT_DURATION_MS = 100; |
| private final static int NAVBAR_HIDDEN_PENDING_ICON_TIMEOUT_MS = 20000; |
| |
| private static final int NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION = 3; |
| |
| /** Allow some time inbetween the long press for back and recents. */ |
| private static final int LOCK_TO_APP_GESTURE_TOLERENCE = 200; |
| |
| protected NavigationBarView mNavigationBarView = null; |
| protected AssistManager mAssistManager; |
| |
| private int mNavigationBarWindowState = WINDOW_STATE_SHOWING; |
| |
| private int mNavigationIconHints = 0; |
| private int mNavigationBarMode; |
| private boolean mAccessibilityFeedbackEnabled; |
| 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 int mLastRotationSuggestion; |
| private boolean mPendingRotationSuggestion; |
| private boolean mHoveringRotationSuggestion; |
| private RotationLockController mRotationLockController; |
| private TaskStackListenerImpl mTaskStackListener; |
| |
| private final Runnable mRemoveRotationProposal = () -> setRotateSuggestionButtonState(false); |
| private final Runnable mCancelPendingRotationProposal = |
| () -> mPendingRotationSuggestion = false; |
| private Animator mRotateHideAnimator; |
| private ViewRippler mViewRippler = new ViewRippler(); |
| |
| 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 |
| setRotateSuggestionButtonState(false); |
| } |
| |
| @Override |
| public void onInteractionFlagsChanged(@InteractionType int flags) { |
| mNavigationBarView.updateStates(); |
| updateScreenPinningGestures(); |
| } |
| |
| @Override |
| public void onBackButtonAlphaChanged(float alpha, boolean animate) { |
| final ButtonDispatcher backButton = mNavigationBarView.getBackButton(); |
| backButton.setVisibility(alpha > 0 ? View.VISIBLE : View.INVISIBLE); |
| backButton.setAlpha(alpha, animate); |
| } |
| }; |
| |
| // ----- 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); |
| |
| try { |
| WindowManagerGlobal.getWindowManagerService() |
| .watchRotation(mRotationWatcher, getContext().getDisplay().getDisplayId()); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| |
| mRotationLockController = Dependency.get(RotationLockController.class); |
| |
| // 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 (mRotationLockController.isRotationLocked()) { |
| final int winRotation = mWindowManager.getDefaultDisplay().getRotation(); |
| mRotationLockController.setRotationLockedAtAngle(true, winRotation); |
| } |
| |
| // Register the task stack listener |
| mTaskStackListener = new TaskStackListenerImpl(); |
| ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskStackListener); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| mCommandQueue.removeCallbacks(this); |
| Dependency.get(AccessibilityManagerWrapper.class).removeCallback( |
| mAccessibilityListener); |
| mContentResolver.unregisterContentObserver(mMagnificationObserver); |
| try { |
| WindowManagerGlobal.getWindowManagerService() |
| .removeRotationWatcher(mRotationWatcher); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| |
| // Unregister the task stack listener |
| ActivityManagerWrapper.getInstance().unregisterTaskStackListener(mTaskStackListener); |
| } |
| |
| @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.setDisabledFlags(mDisabledFlags1); |
| mNavigationBarView.setComponents(mRecents, mDivider, mStatusBar.getPanel()); |
| 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); |
| } |
| |
| @Override |
| public void onDestroyView() { |
| super.onDestroyView(); |
| 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)); |
| |
| // If the navbar is visible, show the rotate button if there's a pending suggestion |
| if (state == WINDOW_STATE_SHOWING && mPendingRotationSuggestion) { |
| showAndLogRotationSuggestion(); |
| } |
| } |
| } |
| |
| @Override |
| public void onRotationProposal(final int rotation, boolean isValid) { |
| final int winRotation = mWindowManager.getDefaultDisplay().getRotation(); |
| final boolean rotateSuggestionsDisabled = hasDisable2RotateSuggestionFlag(mDisabledFlags2); |
| if (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.isRotateButtonVisible())); |
| } |
| |
| // Respect the disabled flag, no need for action as flag change callback will handle hiding |
| if (rotateSuggestionsDisabled) return; |
| |
| // This method will be called on rotation suggestion changes even if the proposed rotation |
| // is not valid for the top app. Use invalid rotation choices as a signal to remove the |
| // rotate button if shown. |
| if (!isValid) { |
| setRotateSuggestionButtonState(false); |
| return; |
| } |
| |
| // If window rotation matches suggested rotation, remove any current suggestions |
| if (rotation == winRotation) { |
| getView().removeCallbacks(mRemoveRotationProposal); |
| setRotateSuggestionButtonState(false); |
| return; |
| } |
| |
| // Prepare to show the navbar icon by updating the icon style to change anim params |
| mLastRotationSuggestion = rotation; // Remember rotation for click |
| if (mNavigationBarView != null) { |
| final boolean rotationCCW = isRotationAnimationCCW(winRotation, rotation); |
| int style; |
| if (winRotation == Surface.ROTATION_0 || winRotation == Surface.ROTATION_180) { |
| style = rotationCCW ? R.style.RotateButtonCCWStart90 : |
| R.style.RotateButtonCWStart90; |
| } else { // 90 or 270 |
| style = rotationCCW ? R.style.RotateButtonCCWStart0 : |
| R.style.RotateButtonCWStart0; |
| } |
| mNavigationBarView.updateRotateSuggestionButtonStyle(style, true); |
| } |
| |
| if (mNavigationBarWindowState != WINDOW_STATE_SHOWING) { |
| // If the navbar isn't shown, flag the rotate icon to be shown should the navbar become |
| // visible given some time limit. |
| mPendingRotationSuggestion = true; |
| getView().removeCallbacks(mCancelPendingRotationProposal); |
| getView().postDelayed(mCancelPendingRotationProposal, |
| NAVBAR_HIDDEN_PENDING_ICON_TIMEOUT_MS); |
| |
| } else { // The navbar is visible so show the icon right away |
| showAndLogRotationSuggestion(); |
| } |
| } |
| |
| private void onRotationSuggestionsDisabled() { |
| // Immediately hide the rotate button and clear any planned removal |
| setRotateSuggestionButtonState(false, true); |
| |
| // This method can be called before view setup is done, ensure getView isn't null |
| final View v = getView(); |
| if (v != null) v.removeCallbacks(mRemoveRotationProposal); |
| } |
| |
| private void showAndLogRotationSuggestion() { |
| setRotateSuggestionButtonState(true); |
| rescheduleRotationTimeout(false); |
| mMetricsLogger.visible(MetricsEvent.ROTATION_SUGGESTION_SHOWN); |
| } |
| |
| private boolean isRotationAnimationCCW(int from, int to) { |
| // All 180deg WM rotation animations are CCW, match that |
| if (from == Surface.ROTATION_0 && to == Surface.ROTATION_90) return false; |
| if (from == Surface.ROTATION_0 && to == Surface.ROTATION_180) return true; //180d so CCW |
| if (from == Surface.ROTATION_0 && to == Surface.ROTATION_270) return true; |
| if (from == Surface.ROTATION_90 && to == Surface.ROTATION_0) return true; |
| if (from == Surface.ROTATION_90 && to == Surface.ROTATION_180) return false; |
| if (from == Surface.ROTATION_90 && to == Surface.ROTATION_270) return true; //180d so CCW |
| if (from == Surface.ROTATION_180 && to == Surface.ROTATION_0) return true; //180d so CCW |
| if (from == Surface.ROTATION_180 && to == Surface.ROTATION_90) return true; |
| if (from == Surface.ROTATION_180 && to == Surface.ROTATION_270) return false; |
| if (from == Surface.ROTATION_270 && to == Surface.ROTATION_0) return false; |
| if (from == Surface.ROTATION_270 && to == Surface.ROTATION_90) return true; //180d so CCW |
| if (from == Surface.ROTATION_270 && to == Surface.ROTATION_180) return true; |
| return false; // Default |
| } |
| |
| public void setRotateSuggestionButtonState(final boolean visible) { |
| setRotateSuggestionButtonState(visible, false); |
| } |
| |
| public void setRotateSuggestionButtonState(final boolean visible, final boolean force) { |
| if (mNavigationBarView == null) return; |
| |
| // At any point the the button can become invisible because an a11y service became active. |
| // Similarly, a call to make the button visible may be rejected because an a11y service is |
| // active. Must account for this. |
| |
| ButtonDispatcher rotBtn = mNavigationBarView.getRotateSuggestionButton(); |
| final boolean currentlyVisible = mNavigationBarView.isRotateButtonVisible(); |
| |
| // Rerun a show animation to indicate change but don't rerun a hide animation |
| if (!visible && !currentlyVisible) return; |
| |
| View view = rotBtn.getCurrentView(); |
| if (view == null) return; |
| |
| KeyButtonDrawable kbd = rotBtn.getImageDrawable(); |
| if (kbd == null) return; |
| |
| // The KBD and AVD is recreated every new valid suggestion because of style changes. |
| AnimatedVectorDrawable animIcon = null; |
| if (kbd.getDrawable(0) instanceof AnimatedVectorDrawable) { |
| animIcon = (AnimatedVectorDrawable) kbd.getDrawable(0); |
| } |
| |
| // Clear any pending suggestion flag as it has either been nullified or is being shown |
| mPendingRotationSuggestion = false; |
| if (getView() != null) getView().removeCallbacks(mCancelPendingRotationProposal); |
| |
| // Handle the visibility change and animation |
| if (visible) { // Appear and change (cannot force) |
| // Stop and clear any currently running hide animations |
| if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) { |
| mRotateHideAnimator.cancel(); |
| } |
| mRotateHideAnimator = null; |
| |
| // Reset the alpha if any has changed due to hide animation |
| view.setAlpha(1f); |
| |
| // Run the rotate icon's animation if it has one |
| if (animIcon != null) { |
| animIcon.reset(); |
| animIcon.start(); |
| } |
| |
| if (!isRotateSuggestionIntroduced()) mViewRippler.start(view); |
| |
| // Set visibility, may fail if a11y service is active. |
| // If invisible, call will stop animation. |
| int appliedVisibility = mNavigationBarView.setRotateButtonVisibility(true); |
| if (appliedVisibility == View.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(); |
| } |
| |
| } else { // Hide |
| |
| mViewRippler.stop(); // Prevent any pending ripples, force hide or not |
| |
| if (force) { |
| // If a hide animator is running stop it and make invisible |
| if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) { |
| mRotateHideAnimator.pause(); |
| } |
| mNavigationBarView.setRotateButtonVisibility(false); |
| return; |
| } |
| |
| // Don't start any new hide animations if one is running |
| if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; |
| |
| ObjectAnimator fadeOut = ObjectAnimator.ofFloat(view, "alpha", |
| 0f); |
| fadeOut.setDuration(BUTTON_FADE_IN_OUT_DURATION_MS); |
| fadeOut.setInterpolator(Interpolators.LINEAR); |
| fadeOut.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mNavigationBarView.setRotateButtonVisibility(false); |
| } |
| }); |
| |
| mRotateHideAnimator = fadeOut; |
| fadeOut.start(); |
| } |
| } |
| |
| private void rescheduleRotationTimeout(final boolean reasonHover) { |
| // May be called due to a new rotation proposal or a change in hover state |
| if (reasonHover) { |
| // Don't reschedule if a hide animator is running |
| if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; |
| // Don't reschedule if not visible |
| if (!mNavigationBarView.isRotateButtonVisible()) return; |
| } |
| |
| getView().removeCallbacks(mRemoveRotationProposal); // Stop any pending removal |
| getView().postDelayed(mRemoveRotationProposal, |
| computeRotationProposalTimeout()); // Schedule timeout |
| } |
| |
| private int computeRotationProposalTimeout() { |
| if (mAccessibilityFeedbackEnabled) return 20000; |
| if (mHoveringRotationSuggestion) return 16000; |
| return 10000; |
| } |
| |
| private boolean isRotateSuggestionIntroduced() { |
| ContentResolver cr = getContext().getContentResolver(); |
| return Settings.Secure.getInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0) |
| >= NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION; |
| } |
| |
| private void incrementNumAcceptedRotationSuggestionsIfNeeded() { |
| // Get the number of accepted suggestions |
| ContentResolver cr = getContext().getContentResolver(); |
| final int numSuggestions = Settings.Secure.getInt(cr, |
| Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0); |
| |
| // Increment the number of accepted suggestions only if it would change intro mode |
| if (numSuggestions < NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION) { |
| Settings.Secure.putInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, |
| numSuggestions + 1); |
| } |
| } |
| |
| // Injected from StatusBar at creation. |
| public void setCurrentSysuiVisibility(int systemUiVisibility) { |
| mSystemUiVisibility = systemUiVisibility; |
| mNavigationBarMode = mStatusBar.computeBarMode(0, mSystemUiVisibility, |
| View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT, |
| View.NAVIGATION_BAR_TRANSPARENT); |
| 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) { |
| 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 |
| final boolean rotateSuggestionsDisabled = hasDisable2RotateSuggestionFlag(state2); |
| if (rotateSuggestionsDisabled) onRotationSuggestionsDisabled(); |
| } |
| |
| private boolean hasDisable2RotateSuggestionFlag(int disable2Flags) { |
| return (disable2Flags & StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS) != 0; |
| } |
| |
| // ----- Internal stuffz ----- |
| |
| private void refreshLayout(int layoutDirection) { |
| if (mNavigationBarView != null) { |
| mNavigationBarView.setLayoutDirection(layoutDirection); |
| } |
| } |
| |
| private boolean shouldDisableNavbarGestures() { |
| return !mStatusBar.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); |
| |
| ButtonDispatcher rotateSuggestionButton = mNavigationBarView.getRotateSuggestionButton(); |
| rotateSuggestionButton.setOnClickListener(this::onRotateSuggestionClick); |
| rotateSuggestionButton.setOnHoverListener(this::onRotateSuggestionHover); |
| 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; |
| IActivityManager activityManager = ActivityManagerNative.getDefault(); |
| 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 || !ActivityManager.supportsMultiWindow(getContext()) |
| || !mDivider.getView().getSnapAlgorithm().isSplitScreenFeasible() |
| || Recents.getConfiguration().isLowRamDevice |
| // 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; |
| } |
| } |
| |
| mAccessibilityFeedbackEnabled = feedbackEnabled; |
| |
| final boolean showAccessibilityButton = requestingServices >= 1; |
| final boolean targetSelection = requestingServices >= 2; |
| mNavigationBarView.setAccessibilityButtonState(showAccessibilityButton, targetSelection); |
| } |
| |
| private void onRotateSuggestionClick(View v) { |
| mMetricsLogger.action(MetricsEvent.ACTION_ROTATION_SUGGESTION_ACCEPTED); |
| incrementNumAcceptedRotationSuggestionsIfNeeded(); |
| mRotationLockController.setRotationLockedAtAngle(true, mLastRotationSuggestion); |
| } |
| |
| private boolean onRotateSuggestionHover(View v, MotionEvent event) { |
| final int action = event.getActionMasked(); |
| mHoveringRotationSuggestion = (action == MotionEvent.ACTION_HOVER_ENTER) |
| || (action == MotionEvent.ACTION_HOVER_MOVE); |
| rescheduleRotationTimeout(true); |
| return false; // Must return false so a11y hover events are dispatched correctly. |
| } |
| |
| // ----- 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 Stub mRotationWatcher = new Stub() { |
| @Override |
| public void onRotationChanged(final int rotation) throws RemoteException { |
| // We need this to be scheduled as early as possible to beat the redrawing of |
| // window in response to the orientation change. |
| Handler h = getView().getHandler(); |
| Message msg = Message.obtain(h, () -> { |
| |
| // If the screen rotation changes while locked, potentially update lock to flow with |
| // new screen rotation and hide any showing suggestions. |
| if (mRotationLockController.isRotationLocked()) { |
| if (shouldOverrideUserLockPrefs(rotation)) { |
| mRotationLockController.setRotationLockedAtAngle(true, rotation); |
| } |
| setRotateSuggestionButtonState(false, true); |
| } |
| |
| if (mNavigationBarView != null |
| && mNavigationBarView.needsReorient(rotation)) { |
| repositionNavigationBar(); |
| } |
| }); |
| msg.setAsynchronous(true); |
| h.sendMessageAtFrontOfQueue(msg); |
| } |
| |
| private boolean shouldOverrideUserLockPrefs(final int rotation) { |
| // Only override user prefs when returning to the natural rotation (normally portrait). |
| // Don't let apps that force landscape or 180 alter user lock. |
| return rotation == NATURAL_ROTATION; |
| } |
| }; |
| |
| 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); |
| }; |
| } |
| }; |
| |
| class TaskStackListenerImpl extends SysUiTaskStackChangeListener { |
| // Invalidate any rotation suggestion on task change or activity orientation change |
| // Note: all callbacks happen on main thread |
| |
| @Override |
| public void onTaskStackChanged() { |
| setRotateSuggestionButtonState(false); |
| } |
| |
| @Override |
| public void onTaskRemoved(int taskId) { |
| setRotateSuggestionButtonState(false); |
| } |
| |
| @Override |
| public void onTaskMovedToFront(int taskId) { |
| setRotateSuggestionButtonState(false); |
| } |
| |
| @Override |
| public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { |
| // Only hide the icon if the top task changes its requestedOrientation |
| // Launcher can alter its requestedOrientation while it's not on top, don't hide on this |
| Optional.ofNullable(ActivityManagerWrapper.getInstance()) |
| .map(ActivityManagerWrapper::getRunningTask) |
| .ifPresent(a -> { |
| if (a.id == taskId) setRotateSuggestionButtonState(false); |
| }); |
| } |
| } |
| |
| private class ViewRippler { |
| private static final int RIPPLE_OFFSET_MS = 50; |
| private static final int RIPPLE_INTERVAL_MS = 2000; |
| private View mRoot; |
| |
| public void start(View root) { |
| stop(); // Stop any pending ripple animations |
| |
| mRoot = root; |
| |
| // Schedule pending ripples, offset the 1st to avoid problems with visibility change |
| mRoot.postOnAnimationDelayed(mRipple, RIPPLE_OFFSET_MS); |
| mRoot.postOnAnimationDelayed(mRipple, RIPPLE_INTERVAL_MS); |
| mRoot.postOnAnimationDelayed(mRipple, 2*RIPPLE_INTERVAL_MS); |
| } |
| |
| public void stop() { |
| if (mRoot != null) mRoot.removeCallbacks(mRipple); |
| } |
| |
| private final Runnable mRipple = new Runnable() { |
| @Override |
| public void run() { // Cause the ripple to fire via false presses |
| if (!mRoot.isAttachedToWindow()) return; |
| mRoot.setPressed(true); |
| mRoot.setPressed(false); |
| } |
| }; |
| } |
| |
| 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; |
| } |
| } |
