| /* |
| * Copyright (C) 2011 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.LayoutParams.FLAG_SHOW_WALLPAPER; |
| import static android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR; |
| |
| import static com.android.server.wm.ProtoLogGroup.WM_DEBUG_ADD_REMOVE; |
| import static com.android.server.wm.ProtoLogGroup.WM_DEBUG_FOCUS; |
| import static com.android.server.wm.ProtoLogGroup.WM_DEBUG_WINDOW_MOVEMENT; |
| import static com.android.server.wm.WindowContainer.AnimationFlags.CHILDREN; |
| import static com.android.server.wm.WindowContainer.AnimationFlags.PARENTS; |
| import static com.android.server.wm.WindowContainer.AnimationFlags.TRANSITION; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| import static com.android.server.wm.WindowManagerService.UPDATE_FOCUS_NORMAL; |
| import static com.android.server.wm.WindowTokenProto.HASH_CODE; |
| import static com.android.server.wm.WindowTokenProto.HIDDEN; |
| import static com.android.server.wm.WindowTokenProto.PAUSED; |
| import static com.android.server.wm.WindowTokenProto.WAITING_TO_SHOW; |
| import static com.android.server.wm.WindowTokenProto.WINDOWS; |
| import static com.android.server.wm.WindowTokenProto.WINDOW_CONTAINER; |
| |
| import android.annotation.CallSuper; |
| import android.os.Debug; |
| import android.os.IBinder; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.server.protolog.common.ProtoLog; |
| |
| import java.io.PrintWriter; |
| import java.util.Comparator; |
| |
| /** |
| * Container of a set of related windows in the window manager. Often this is an AppWindowToken, |
| * which is the handle for an Activity that it uses to display windows. For nested windows, there is |
| * a WindowToken created for the parent window to manage its children. |
| */ |
| class WindowToken extends WindowContainer<WindowState> { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "WindowToken" : TAG_WM; |
| |
| // The actual token. |
| final IBinder token; |
| |
| // The type of window this token is for, as per WindowManager.LayoutParams. |
| final int windowType; |
| |
| /** {@code true} if this holds the rounded corner overlay */ |
| final boolean mRoundedCornerOverlay; |
| |
| // Set if this token was explicitly added by a client, so should |
| // persist (not be removed) when all windows are removed. |
| boolean mPersistOnEmpty; |
| |
| // For printing. |
| String stringName; |
| |
| // Is key dispatching paused for this token? |
| boolean paused = false; |
| |
| // Should this token's windows be hidden? |
| private boolean mHidden; |
| |
| // Temporary for finding which tokens no longer have visible windows. |
| boolean hasVisible; |
| |
| // Set to true when this token is in a pending transaction where it |
| // will be shown. |
| boolean waitingToShow; |
| |
| // Set to true when this token is in a pending transaction where its |
| // windows will be put to the bottom of the list. |
| boolean sendingToBottom; |
| |
| /** The owner has {@link android.Manifest.permission#MANAGE_APP_TOKENS} */ |
| final boolean mOwnerCanManageAppTokens; |
| |
| /** |
| * Compares two child window of this token and returns -1 if the first is lesser than the |
| * second in terms of z-order and 1 otherwise. |
| */ |
| private final Comparator<WindowState> mWindowComparator = |
| (WindowState newWindow, WindowState existingWindow) -> { |
| final WindowToken token = WindowToken.this; |
| if (newWindow.mToken != token) { |
| throw new IllegalArgumentException("newWindow=" + newWindow |
| + " is not a child of token=" + token); |
| } |
| |
| if (existingWindow.mToken != token) { |
| throw new IllegalArgumentException("existingWindow=" + existingWindow |
| + " is not a child of token=" + token); |
| } |
| |
| return isFirstChildWindowGreaterThanSecond(newWindow, existingWindow) ? 1 : -1; |
| }; |
| |
| WindowToken(WindowManagerService service, IBinder _token, int type, boolean persistOnEmpty, |
| DisplayContent dc, boolean ownerCanManageAppTokens) { |
| this(service, _token, type, persistOnEmpty, dc, ownerCanManageAppTokens, |
| false /* roundedCornersOverlay */); |
| } |
| |
| WindowToken(WindowManagerService service, IBinder _token, int type, boolean persistOnEmpty, |
| DisplayContent dc, boolean ownerCanManageAppTokens, boolean roundedCornerOverlay) { |
| super(service); |
| token = _token; |
| windowType = type; |
| mPersistOnEmpty = persistOnEmpty; |
| mOwnerCanManageAppTokens = ownerCanManageAppTokens; |
| mRoundedCornerOverlay = roundedCornerOverlay; |
| if (dc != null) { |
| onDisplayChanged(dc); |
| } |
| } |
| |
| void setHidden(boolean hidden) { |
| if (hidden != mHidden) { |
| mHidden = hidden; |
| } |
| } |
| |
| boolean isHidden() { |
| return mHidden; |
| } |
| |
| void removeAllWindowsIfPossible() { |
| for (int i = mChildren.size() - 1; i >= 0; --i) { |
| final WindowState win = mChildren.get(i); |
| ProtoLog.w(WM_DEBUG_WINDOW_MOVEMENT, |
| "removeAllWindowsIfPossible: removing win=%s", win); |
| win.removeIfPossible(); |
| } |
| } |
| |
| void setExiting() { |
| if (mChildren.size() == 0) { |
| super.removeImmediately(); |
| return; |
| } |
| |
| // This token is exiting, so allow it to be removed when it no longer contains any windows. |
| mPersistOnEmpty = false; |
| |
| if (mHidden) { |
| return; |
| } |
| |
| final int count = mChildren.size(); |
| boolean changed = false; |
| final boolean delayed = isAnimating(TRANSITION | PARENTS | CHILDREN); |
| |
| for (int i = 0; i < count; i++) { |
| final WindowState win = mChildren.get(i); |
| changed |= win.onSetAppExiting(); |
| } |
| |
| setHidden(true); |
| |
| if (changed) { |
| mWmService.mWindowPlacerLocked.performSurfacePlacement(); |
| mWmService.updateFocusedWindowLocked(UPDATE_FOCUS_NORMAL, false /*updateInputWindows*/); |
| } |
| |
| if (delayed) { |
| mDisplayContent.mExitingTokens.add(this); |
| } |
| } |
| |
| /** |
| * @return The scale for applications running in compatibility mode. Multiply the size in the |
| * application by this scale will be the size in the screen. |
| */ |
| float getSizeCompatScale() { |
| return mDisplayContent.mCompatibleScreenScale; |
| } |
| |
| /** |
| * Returns true if the new window is considered greater than the existing window in terms of |
| * z-order. |
| */ |
| protected boolean isFirstChildWindowGreaterThanSecond(WindowState newWindow, |
| WindowState existingWindow) { |
| // New window is considered greater if it has a higher or equal base layer. |
| return newWindow.mBaseLayer >= existingWindow.mBaseLayer; |
| } |
| |
| void addWindow(final WindowState win) { |
| ProtoLog.d(WM_DEBUG_FOCUS, |
| "addWindow: win=%s Callers=%s", win, Debug.getCallers(5)); |
| |
| if (win.isChildWindow()) { |
| // Child windows are added to their parent windows. |
| return; |
| } |
| if (!mChildren.contains(win)) { |
| ProtoLog.v(WM_DEBUG_ADD_REMOVE, "Adding %s to %s", win, this); |
| addChild(win, mWindowComparator); |
| mWmService.mWindowsChanged = true; |
| // TODO: Should we also be setting layout needed here and other places? |
| } |
| } |
| |
| /** Returns true if the token windows list is empty. */ |
| boolean isEmpty() { |
| return mChildren.isEmpty(); |
| } |
| |
| WindowState getReplacingWindow() { |
| for (int i = mChildren.size() - 1; i >= 0; i--) { |
| final WindowState win = mChildren.get(i); |
| final WindowState replacing = win.getReplacingWindow(); |
| if (replacing != null) { |
| return replacing; |
| } |
| } |
| return null; |
| } |
| |
| /** Return true if this token has a window that wants the wallpaper displayed behind it. */ |
| boolean windowsCanBeWallpaperTarget() { |
| for (int j = mChildren.size() - 1; j >= 0; j--) { |
| final WindowState w = mChildren.get(j); |
| if ((w.mAttrs.flags & FLAG_SHOW_WALLPAPER) != 0) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| ActivityRecord asActivityRecord() { |
| // TODO: Not sure if this is the best way to handle this vs. using instanceof and casting. |
| // I am not an app window token! |
| return null; |
| } |
| |
| @Override |
| void removeImmediately() { |
| if (mDisplayContent != null) { |
| mDisplayContent.removeWindowToken(token); |
| } |
| // Needs to occur after the token is removed from the display above to avoid attempt at |
| // duplicate removal of this window container from it's parent. |
| super.removeImmediately(); |
| } |
| |
| @Override |
| void onDisplayChanged(DisplayContent dc) { |
| dc.reParentWindowToken(this); |
| |
| // TODO(b/36740756): One day this should perhaps be hooked |
| // up with goodToGo, so we don't move a window |
| // to another display before the window behind |
| // it is ready. |
| |
| super.onDisplayChanged(dc); |
| } |
| |
| @CallSuper |
| @Override |
| public void writeToProto(ProtoOutputStream proto, long fieldId, |
| @WindowTraceLogLevel int logLevel) { |
| if (logLevel == WindowTraceLogLevel.CRITICAL && !isVisible()) { |
| return; |
| } |
| |
| final long token = proto.start(fieldId); |
| super.writeToProto(proto, WINDOW_CONTAINER, logLevel); |
| proto.write(HASH_CODE, System.identityHashCode(this)); |
| for (int i = 0; i < mChildren.size(); i++) { |
| final WindowState w = mChildren.get(i); |
| w.writeToProto(proto, WINDOWS, logLevel); |
| } |
| proto.write(HIDDEN, mHidden); |
| proto.write(WAITING_TO_SHOW, waitingToShow); |
| proto.write(PAUSED, paused); |
| proto.end(token); |
| } |
| |
| void dump(PrintWriter pw, String prefix, boolean dumpAll) { |
| super.dump(pw, prefix, dumpAll); |
| pw.print(prefix); pw.print("windows="); pw.println(mChildren); |
| pw.print(prefix); pw.print("windowType="); pw.print(windowType); |
| pw.print(" hidden="); pw.print(mHidden); |
| pw.print(" hasVisible="); pw.println(hasVisible); |
| if (waitingToShow || sendingToBottom) { |
| pw.print(prefix); pw.print("waitingToShow="); pw.print(waitingToShow); |
| pw.print(" sendingToBottom="); pw.print(sendingToBottom); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| if (stringName == null) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("WindowToken{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| sb.append(" "); sb.append(token); sb.append('}'); |
| stringName = sb.toString(); |
| } |
| return stringName; |
| } |
| |
| @Override |
| String getName() { |
| return toString(); |
| } |
| |
| /** |
| * Return whether windows from this token can layer above the |
| * system bars, or in other words extend outside of the "Decor Frame" |
| */ |
| boolean canLayerAboveSystemBars() { |
| int layer = mWmService.mPolicy.getWindowLayerFromTypeLw(windowType, |
| mOwnerCanManageAppTokens); |
| int navLayer = mWmService.mPolicy.getWindowLayerFromTypeLw(TYPE_NAVIGATION_BAR, |
| mOwnerCanManageAppTokens); |
| return mOwnerCanManageAppTokens && (layer > navLayer); |
| } |
| } |