| /* |
| * Copyright (C) 2010 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.server.wm; |
| |
| import static android.view.WindowManager.INPUT_CONSUMER_NAVIGATION; |
| import static android.view.WindowManager.INPUT_CONSUMER_PIP; |
| import static android.view.WindowManager.INPUT_CONSUMER_RECENTS_ANIMATION; |
| import static android.view.WindowManager.INPUT_CONSUMER_WALLPAPER; |
| import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; |
| import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS; |
| import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD; |
| import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER; |
| |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_FOCUS_LIGHT; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_INPUT; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_TASK_POSITIONING; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| |
| import android.graphics.Rect; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Process; |
| import android.os.Trace; |
| import android.os.UserHandle; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.view.InputApplicationHandle; |
| import android.view.InputChannel; |
| import android.view.InputEventReceiver; |
| import android.view.InputWindowHandle; |
| import android.view.SurfaceControl; |
| |
| import com.android.server.AnimationThread; |
| import com.android.server.policy.WindowManagerPolicy; |
| |
| import java.io.PrintWriter; |
| import java.util.Set; |
| import java.util.function.Consumer; |
| |
| final class InputMonitor { |
| private final WindowManagerService mService; |
| |
| // Current window with input focus for keys and other non-touch events. May be null. |
| private WindowState mInputFocus; |
| |
| // When true, need to call updateInputWindowsLw(). |
| private boolean mUpdateInputWindowsNeeded = true; |
| private boolean mUpdateInputWindowsPending; |
| |
| // Currently focused input window handle. |
| private InputWindowHandle mFocusedInputWindowHandle; |
| |
| private boolean mDisableWallpaperTouchEvents; |
| private final Rect mTmpRect = new Rect(); |
| private final UpdateInputForAllWindowsConsumer mUpdateInputForAllWindowsConsumer; |
| |
| private final int mDisplayId; |
| private final DisplayContent mDisplayContent; |
| private boolean mDisplayRemoved; |
| |
| private final SurfaceControl.Transaction mInputTransaction; |
| private final Handler mHandler; |
| |
| /** |
| * The set of input consumer added to the window manager by name, which consumes input events |
| * for the windows below it. |
| */ |
| private final ArrayMap<String, InputConsumerImpl> mInputConsumers = new ArrayMap(); |
| |
| private static final class EventReceiverInputConsumer extends InputConsumerImpl |
| implements WindowManagerPolicy.InputConsumer { |
| private InputMonitor mInputMonitor; |
| private final InputEventReceiver mInputEventReceiver; |
| |
| EventReceiverInputConsumer(WindowManagerService service, InputMonitor monitor, |
| Looper looper, String name, |
| InputEventReceiver.Factory inputEventReceiverFactory, |
| int clientPid, UserHandle clientUser, int displayId) { |
| super(service, null /* token */, name, null /* inputChannel */, clientPid, clientUser, |
| displayId); |
| mInputMonitor = monitor; |
| mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver( |
| mClientChannel, looper); |
| } |
| |
| @Override |
| public void dismiss() { |
| synchronized (mService.mGlobalLock) { |
| if (mInputMonitor.destroyInputConsumer(mWindowHandle.name)) { |
| mInputEventReceiver.dispose(); |
| } |
| } |
| } |
| } |
| |
| private final Runnable mUpdateInputWindows = new Runnable() { |
| @Override |
| public void run() { |
| synchronized (mService.mGlobalLock) { |
| mUpdateInputWindowsPending = false; |
| mUpdateInputWindowsNeeded = false; |
| |
| if (mDisplayRemoved) { |
| return; |
| } |
| |
| // Populate the input window list with information about all of the windows that |
| // could potentially receive input. |
| // As an optimization, we could try to prune the list of windows but this turns |
| // out to be difficult because only the native code knows for sure which window |
| // currently has touch focus. |
| |
| // If there's a drag in flight, provide a pseudo-window to catch drag input |
| final boolean inDrag = mService.mDragDropController.dragDropActiveLocked(); |
| final boolean inPositioning = |
| mService.mTaskPositioningController.isPositioningLocked(); |
| if (inPositioning) { |
| if (DEBUG_TASK_POSITIONING) { |
| Log.d(TAG_WM, "Inserting window handle for repositioning"); |
| } |
| mService.mTaskPositioningController.showInputSurface(mInputTransaction, |
| mDisplayId); |
| } else { |
| mService.mTaskPositioningController.hideInputSurface(mInputTransaction, |
| mDisplayId); |
| } |
| |
| // Add all windows on the default display. |
| mUpdateInputForAllWindowsConsumer.updateInputWindows(inDrag); |
| } |
| } |
| }; |
| |
| public InputMonitor(WindowManagerService service, int displayId) { |
| mService = service; |
| mDisplayContent = mService.mRoot.getDisplayContent(displayId); |
| mDisplayId = displayId; |
| mInputTransaction = mDisplayContent.getPendingTransaction(); |
| mHandler = AnimationThread.getHandler(); |
| mUpdateInputForAllWindowsConsumer = new UpdateInputForAllWindowsConsumer(); |
| } |
| |
| void onDisplayRemoved() { |
| mHandler.removeCallbacks(mUpdateInputWindows); |
| mService.mInputManager.onDisplayRemoved(mDisplayId); |
| mDisplayRemoved = true; |
| } |
| |
| private void addInputConsumer(String name, InputConsumerImpl consumer) { |
| mInputConsumers.put(name, consumer); |
| consumer.linkToDeathRecipient(); |
| updateInputWindowsLw(true /* force */); |
| } |
| |
| boolean destroyInputConsumer(String name) { |
| if (disposeInputConsumer(mInputConsumers.remove(name))) { |
| updateInputWindowsLw(true /* force */); |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean disposeInputConsumer(InputConsumerImpl consumer) { |
| if (consumer != null) { |
| consumer.disposeChannelsLw(); |
| consumer.hide(mInputTransaction); |
| return true; |
| } |
| return false; |
| } |
| |
| InputConsumerImpl getInputConsumer(String name) { |
| return mInputConsumers.get(name); |
| } |
| |
| void layoutInputConsumers(int dw, int dh) { |
| for (int i = mInputConsumers.size() - 1; i >= 0; i--) { |
| mInputConsumers.valueAt(i).layout(mInputTransaction, dw, dh); |
| } |
| } |
| |
| // The visibility of the input consumers is recomputed each time we |
| // update the input windows. We use a model where consumers begin invisible |
| // (set so by this function) and must meet some condition for visibility on each update. |
| void resetInputConsumers(SurfaceControl.Transaction t) { |
| for (int i = mInputConsumers.size() - 1; i >= 0; i--) { |
| mInputConsumers.valueAt(i).hide(t); |
| } |
| } |
| |
| WindowManagerPolicy.InputConsumer createInputConsumer(Looper looper, String name, |
| InputEventReceiver.Factory inputEventReceiverFactory) { |
| if (mInputConsumers.containsKey(name)) { |
| throw new IllegalStateException("Existing input consumer found with name: " + name |
| + ", display: " + mDisplayId); |
| } |
| final EventReceiverInputConsumer consumer = new EventReceiverInputConsumer(mService, |
| this, looper, name, inputEventReceiverFactory, Process.myPid(), |
| UserHandle.SYSTEM, mDisplayId); |
| addInputConsumer(name, consumer); |
| return consumer; |
| } |
| |
| void createInputConsumer(IBinder token, String name, InputChannel inputChannel, int clientPid, |
| UserHandle clientUser) { |
| if (mInputConsumers.containsKey(name)) { |
| throw new IllegalStateException("Existing input consumer found with name: " + name |
| + ", display: " + mDisplayId); |
| } |
| |
| final InputConsumerImpl consumer = new InputConsumerImpl(mService, token, name, |
| inputChannel, clientPid, clientUser, mDisplayId); |
| switch (name) { |
| case INPUT_CONSUMER_WALLPAPER: |
| consumer.mWindowHandle.hasWallpaper = true; |
| break; |
| case INPUT_CONSUMER_PIP: |
| // The touchable region of the Pip input window is cropped to the bounds of the |
| // stack, and we need FLAG_NOT_TOUCH_MODAL to ensure other events fall through |
| consumer.mWindowHandle.layoutParamsFlags |= FLAG_NOT_TOUCH_MODAL; |
| break; |
| } |
| addInputConsumer(name, consumer); |
| } |
| |
| |
| void populateInputWindowHandle(final InputWindowHandle inputWindowHandle, |
| final WindowState child, int flags, final int type, final boolean isVisible, |
| final boolean hasFocus, final boolean hasWallpaper) { |
| // Add a window to our list of input windows. |
| inputWindowHandle.name = child.toString(); |
| flags = child.getSurfaceTouchableRegion(inputWindowHandle.touchableRegion, flags); |
| inputWindowHandle.layoutParamsFlags = flags; |
| inputWindowHandle.layoutParamsType = type; |
| inputWindowHandle.dispatchingTimeoutNanos = child.getInputDispatchingTimeoutNanos(); |
| inputWindowHandle.visible = isVisible; |
| inputWindowHandle.canReceiveKeys = child.canReceiveKeys(); |
| inputWindowHandle.hasFocus = hasFocus; |
| inputWindowHandle.hasWallpaper = hasWallpaper; |
| inputWindowHandle.paused = child.mAppToken != null ? child.mAppToken.paused : false; |
| inputWindowHandle.layer = child.mLayer; |
| inputWindowHandle.ownerPid = child.mSession.mPid; |
| inputWindowHandle.ownerUid = child.mSession.mUid; |
| inputWindowHandle.inputFeatures = child.mAttrs.inputFeatures; |
| inputWindowHandle.displayId = child.getDisplayId(); |
| |
| final Rect frame = child.getFrameLw(); |
| inputWindowHandle.frameLeft = frame.left; |
| inputWindowHandle.frameTop = frame.top; |
| inputWindowHandle.frameRight = frame.right; |
| inputWindowHandle.frameBottom = frame.bottom; |
| |
| // Surface insets are hardcoded to be the same in all directions |
| // and we could probably deprecate the "left/right/top/bottom" concept. |
| // we avoid reintroducing this concept by just choosing one of them here. |
| inputWindowHandle.surfaceInset = child.getAttrs().surfaceInsets.left; |
| |
| if (child.mGlobalScale != 1) { |
| // If we are scaling the window, input coordinates need |
| // to be inversely scaled to map from what is on screen |
| // to what is actually being touched in the UI. |
| inputWindowHandle.scaleFactor = 1.0f/child.mGlobalScale; |
| } else { |
| inputWindowHandle.scaleFactor = 1; |
| } |
| |
| if (DEBUG_INPUT) { |
| Slog.d(TAG_WM, "addInputWindowHandle: " |
| + child + ", " + inputWindowHandle); |
| } |
| |
| if (hasFocus) { |
| mFocusedInputWindowHandle = inputWindowHandle; |
| } |
| } |
| |
| void setUpdateInputWindowsNeededLw() { |
| mUpdateInputWindowsNeeded = true; |
| } |
| |
| /* Updates the cached window information provided to the input dispatcher. */ |
| void updateInputWindowsLw(boolean force) { |
| if (!force && !mUpdateInputWindowsNeeded) { |
| return; |
| } |
| scheduleUpdateInputWindows(); |
| } |
| |
| private void scheduleUpdateInputWindows() { |
| if (mDisplayRemoved) { |
| return; |
| } |
| |
| if (!mUpdateInputWindowsPending) { |
| mUpdateInputWindowsPending = true; |
| mHandler.post(mUpdateInputWindows); |
| } |
| } |
| |
| /* Called when the current input focus changes. |
| * Layer assignment is assumed to be complete by the time this is called. |
| */ |
| public void setInputFocusLw(WindowState newWindow, boolean updateInputWindows) { |
| if (DEBUG_FOCUS_LIGHT || DEBUG_INPUT) { |
| Slog.d(TAG_WM, "Input focus has changed to " + newWindow); |
| } |
| |
| if (newWindow != mInputFocus) { |
| if (newWindow != null && newWindow.canReceiveKeys()) { |
| // Displaying a window implicitly causes dispatching to be unpaused. |
| // This is to protect against bugs if someone pauses dispatching but |
| // forgets to resume. |
| newWindow.mToken.paused = false; |
| } |
| |
| mInputFocus = newWindow; |
| setUpdateInputWindowsNeededLw(); |
| |
| if (updateInputWindows) { |
| updateInputWindowsLw(false /*force*/); |
| } |
| } |
| } |
| |
| public void setFocusedAppLw(AppWindowToken newApp) { |
| // Focused app has changed. |
| if (newApp == null) { |
| mService.mInputManager.setFocusedApplication(mDisplayId, null); |
| } else { |
| final InputApplicationHandle handle = newApp.mInputApplicationHandle; |
| handle.name = newApp.toString(); |
| handle.dispatchingTimeoutNanos = newApp.mInputDispatchingTimeoutNanos; |
| |
| mService.mInputManager.setFocusedApplication(mDisplayId, handle); |
| } |
| } |
| |
| public void pauseDispatchingLw(WindowToken window) { |
| if (! window.paused) { |
| if (DEBUG_INPUT) { |
| Slog.v(TAG_WM, "Pausing WindowToken " + window); |
| } |
| |
| window.paused = true; |
| updateInputWindowsLw(true /*force*/); |
| } |
| } |
| |
| public void resumeDispatchingLw(WindowToken window) { |
| if (window.paused) { |
| if (DEBUG_INPUT) { |
| Slog.v(TAG_WM, "Resuming WindowToken " + window); |
| } |
| |
| window.paused = false; |
| updateInputWindowsLw(true /*force*/); |
| } |
| } |
| |
| void dump(PrintWriter pw, String prefix) { |
| final Set<String> inputConsumerKeys = mInputConsumers.keySet(); |
| if (!inputConsumerKeys.isEmpty()) { |
| pw.println(prefix + "InputConsumers:"); |
| for (String key : inputConsumerKeys) { |
| mInputConsumers.get(key).dump(pw, key, prefix); |
| } |
| } |
| } |
| |
| private final class UpdateInputForAllWindowsConsumer implements Consumer<WindowState> { |
| InputConsumerImpl navInputConsumer; |
| InputConsumerImpl pipInputConsumer; |
| InputConsumerImpl wallpaperInputConsumer; |
| InputConsumerImpl recentsAnimationInputConsumer; |
| |
| private boolean mAddInputConsumerHandle; |
| private boolean mAddPipInputConsumerHandle; |
| private boolean mAddWallpaperInputConsumerHandle; |
| private boolean mAddRecentsAnimationInputConsumerHandle; |
| |
| boolean inDrag; |
| WallpaperController wallpaperController; |
| |
| // An invalid window handle that tells SurfaceFlinger not update the input info. |
| final InputWindowHandle mInvalidInputWindow = new InputWindowHandle(null, null, mDisplayId); |
| |
| private void updateInputWindows(boolean inDrag) { |
| Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "updateInputWindows"); |
| |
| navInputConsumer = getInputConsumer(INPUT_CONSUMER_NAVIGATION); |
| pipInputConsumer = getInputConsumer(INPUT_CONSUMER_PIP); |
| wallpaperInputConsumer = getInputConsumer(INPUT_CONSUMER_WALLPAPER); |
| recentsAnimationInputConsumer = getInputConsumer(INPUT_CONSUMER_RECENTS_ANIMATION); |
| |
| mAddInputConsumerHandle = navInputConsumer != null; |
| mAddPipInputConsumerHandle = pipInputConsumer != null; |
| mAddWallpaperInputConsumerHandle = wallpaperInputConsumer != null; |
| mAddRecentsAnimationInputConsumerHandle = recentsAnimationInputConsumer != null; |
| |
| mTmpRect.setEmpty(); |
| mDisableWallpaperTouchEvents = false; |
| this.inDrag = inDrag; |
| wallpaperController = mDisplayContent.mWallpaperController; |
| |
| resetInputConsumers(mInputTransaction); |
| |
| mDisplayContent.forAllWindows(this, |
| true /* traverseTopToBottom */); |
| |
| if (mAddWallpaperInputConsumerHandle) { |
| wallpaperInputConsumer.show(mInputTransaction, 0); |
| } |
| |
| mDisplayContent.scheduleAnimation(); |
| |
| Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER); |
| } |
| |
| @Override |
| public void accept(WindowState w) { |
| final InputChannel inputChannel = w.mInputChannel; |
| final InputWindowHandle inputWindowHandle = w.mInputWindowHandle; |
| if (inputChannel == null || inputWindowHandle == null || w.mRemoved |
| || w.cantReceiveTouchInput()) { |
| if (w.mWinAnimator.hasSurface()) { |
| mInputTransaction.setInputWindowInfo( |
| w.mWinAnimator.mSurfaceController.mSurfaceControl, mInvalidInputWindow); |
| } |
| // Skip this window because it cannot possibly receive input. |
| return; |
| } |
| |
| final int flags = w.mAttrs.flags; |
| final int privateFlags = w.mAttrs.privateFlags; |
| final int type = w.mAttrs.type; |
| final boolean hasFocus = w.isFocused(); |
| final boolean isVisible = w.isVisibleLw(); |
| |
| if (mAddRecentsAnimationInputConsumerHandle) { |
| final RecentsAnimationController recentsAnimationController = |
| mService.getRecentsAnimationController(); |
| if (recentsAnimationController != null |
| && recentsAnimationController.shouldApplyInputConsumer(w.mAppToken)) { |
| if (recentsAnimationController.updateInputConsumerForApp( |
| recentsAnimationInputConsumer.mWindowHandle, hasFocus)) { |
| recentsAnimationInputConsumer.show(mInputTransaction, w); |
| mAddRecentsAnimationInputConsumerHandle = false; |
| } |
| } |
| } |
| |
| if (w.inPinnedWindowingMode()) { |
| if (mAddPipInputConsumerHandle) { |
| // Update the bounds of the Pip input consumer to match the window bounds. |
| w.getBounds(mTmpRect); |
| pipInputConsumer.layout(mInputTransaction, mTmpRect); |
| |
| // The touchable region is relative to the surface top-left |
| mTmpRect.offsetTo(0, 0); |
| pipInputConsumer.mWindowHandle.touchableRegion.set(mTmpRect); |
| pipInputConsumer.show(mInputTransaction, w); |
| mAddPipInputConsumerHandle = false; |
| } |
| } |
| |
| if (mAddInputConsumerHandle |
| && inputWindowHandle.layer <= navInputConsumer.mWindowHandle.layer) { |
| navInputConsumer.show(mInputTransaction, w); |
| mAddInputConsumerHandle = false; |
| } |
| |
| if (mAddWallpaperInputConsumerHandle) { |
| if (w.mAttrs.type == TYPE_WALLPAPER && w.isVisibleLw()) { |
| // Add the wallpaper input consumer above the first visible wallpaper. |
| wallpaperInputConsumer.show(mInputTransaction, w); |
| mAddWallpaperInputConsumerHandle = false; |
| } |
| } |
| |
| if ((privateFlags & PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS) != 0) { |
| mDisableWallpaperTouchEvents = true; |
| } |
| final boolean hasWallpaper = wallpaperController.isWallpaperTarget(w) |
| && (privateFlags & PRIVATE_FLAG_KEYGUARD) == 0 |
| && !mDisableWallpaperTouchEvents; |
| |
| // If there's a drag in progress and 'child' is a potential drop target, |
| // make sure it's been told about the drag |
| if (inDrag && isVisible && w.getDisplayContent().isDefaultDisplay) { |
| mService.mDragDropController.sendDragStartedIfNeededLocked(w); |
| } |
| |
| populateInputWindowHandle( |
| inputWindowHandle, w, flags, type, isVisible, hasFocus, hasWallpaper); |
| |
| if (w.mWinAnimator.hasSurface()) { |
| mInputTransaction.setInputWindowInfo( |
| w.mWinAnimator.mSurfaceController.mSurfaceControl, inputWindowHandle); |
| } |
| } |
| } |
| } |