| /* |
| * 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 java.util.Comparator; |
| import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER; |
| import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD; |
| import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING; |
| |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_FOCUS; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_MOVEMENT; |
| 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 android.os.Bundle; |
| import android.os.Debug; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| import android.view.DisplayInfo; |
| import android.view.animation.Animation; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * 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 window manager! |
| protected final WindowManagerService mService; |
| |
| // The actual token. |
| final IBinder token; |
| |
| // The type of window this token is for, as per WindowManager.LayoutParams. |
| final int windowType; |
| |
| // Set if this token was explicitly added by a client, so should |
| // not be removed when all windows are removed. |
| final boolean explicit; |
| |
| // For printing. |
| String stringName; |
| |
| // Is key dispatching paused for this token? |
| boolean paused = false; |
| |
| // Should this token's windows be hidden? |
| boolean hidden; |
| |
| // 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 display this token is on. |
| protected DisplayContent mDisplayContent; |
| |
| /** |
| * 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 _explicit, |
| DisplayContent dc) { |
| mService = service; |
| token = _token; |
| windowType = type; |
| explicit = _explicit; |
| onDisplayChanged(dc); |
| } |
| |
| void removeAllWindows() { |
| for (int i = mChildren.size() - 1; i >= 0; --i) { |
| final WindowState win = mChildren.get(i); |
| if (DEBUG_WINDOW_MOVEMENT) Slog.w(TAG_WM, "removeAllWindows: removing win=" + win); |
| win.removeIfPossible(); |
| if (mChildren.contains(win)) { |
| removeChild(win); |
| } |
| } |
| } |
| |
| void setExiting() { |
| if (hidden) { |
| return; |
| } |
| |
| final int count = mChildren.size(); |
| boolean changed = false; |
| boolean delayed = false; |
| |
| for (int i = 0; i < count; i++) { |
| final WindowState win = mChildren.get(i); |
| if (win.mWinAnimator.isAnimationSet()) { |
| delayed = true; |
| } |
| changed |= win.onSetAppExiting(); |
| } |
| |
| hidden = true; |
| |
| if (changed) { |
| mService.mWindowPlacerLocked.performSurfacePlacement(); |
| mService.updateFocusedWindowLocked(UPDATE_FOCUS_NORMAL, false /*updateInputWindows*/); |
| } |
| |
| if (delayed) { |
| mDisplayContent.mExitingTokens.add(this); |
| } |
| } |
| |
| int adjustAnimLayer(int adj) { |
| int highestAnimLayer = -1; |
| for (int j = mChildren.size() - 1; j >= 0; j--) { |
| final WindowState w = mChildren.get(j); |
| final int winHighestAnimLayer = w.adjustAnimLayer(adj); |
| if (winHighestAnimLayer > highestAnimLayer) { |
| highestAnimLayer = winHighestAnimLayer; |
| } |
| if (w == mService.mInputMethodTarget && !mService.mInputMethodTargetWaitingAnim) { |
| mDisplayContent.setInputMethodAnimLayerAdjustment(adj); |
| } |
| } |
| return highestAnimLayer; |
| } |
| |
| WindowState getTopWindow() { |
| if (mChildren.isEmpty()) { |
| return null; |
| } |
| return (WindowState) mChildren.get(mChildren.size() - 1).getTop(); |
| } |
| |
| /** |
| * Recursive search through a WindowList and all of its windows' children. |
| * @param target The window to search for. |
| * @return The index of win in windows or of the window that is an ancestor of win. |
| */ |
| int getWindowIndex(WindowState target) { |
| for (int i = mChildren.size() - 1; i >= 0; --i) { |
| final WindowState w = mChildren.get(i); |
| if (w == target || w.hasChild(target)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| /** |
| * 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) { |
| if (DEBUG_FOCUS) Slog.d(TAG_WM, |
| "addWindow: win=" + win + " Callers=" + Debug.getCallers(5)); |
| |
| if (!win.isChildWindow()) { |
| if (asAppWindowToken() != null) { |
| mDisplayContent.addAppWindowToWindowList(win); |
| } else { |
| mDisplayContent.addNonAppWindowToWindowList(win); |
| } |
| |
| if (!mChildren.contains(win)) { |
| if (DEBUG_ADD_REMOVE) Slog.v(TAG_WM, "Adding " + win + " to " + this); |
| addChild(win, mWindowComparator); |
| } |
| } else { |
| mDisplayContent.addChildWindowToWindowList(win); |
| } |
| } |
| |
| void addImeWindow(WindowState win) { |
| int pos = mDisplayContent.findDesiredInputMethodWindowIndex(true); |
| |
| if (pos < 0) { |
| addWindow(win); |
| mDisplayContent.moveInputMethodDialogs(pos); |
| return; |
| } |
| |
| if (DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM, |
| "Adding input method window " + win + " at " + pos); |
| mDisplayContent.addToWindowList(win, pos); |
| if (!mChildren.contains(win)) { |
| addChild(win, null); |
| } |
| mDisplayContent.moveInputMethodDialogs(pos + 1); |
| } |
| |
| /** Return the first window in the token window list that isn't a starting window or null. */ |
| WindowState getFirstNonStartingWindow() { |
| final int count = mChildren.size(); |
| // We only care about parent windows so no need to loop through child windows. |
| for (int i = 0; i < count; i++) { |
| final WindowState w = mChildren.get(i); |
| if (w.mAttrs.type != TYPE_APPLICATION_STARTING) { |
| return w; |
| } |
| } |
| return null; |
| } |
| |
| /** 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; |
| } |
| |
| int getHighestAnimLayer() { |
| int highest = -1; |
| for (int j = 0; j < mChildren.size(); j++) { |
| final WindowState w = mChildren.get(j); |
| final int wLayer = w.getHighestAnimLayer(); |
| if (wLayer > highest) { |
| highest = wLayer; |
| } |
| } |
| return highest; |
| } |
| |
| AppWindowToken asAppWindowToken() { |
| // 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; |
| } |
| |
| DisplayContent getDisplayContent() { |
| return mDisplayContent; |
| } |
| |
| @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(); |
| } |
| |
| void onDisplayChanged(DisplayContent dc) { |
| if (mDisplayContent == dc) { |
| return; |
| } |
| |
| if (mDisplayContent != null) { |
| mDisplayContent.removeWindowToken(token); |
| } |
| mDisplayContent = dc; |
| mDisplayContent.setWindowToken(token, this); |
| |
| super.onDisplayChanged(dc); |
| } |
| |
| void dump(PrintWriter pw, String prefix) { |
| pw.print(prefix); pw.print("windows="); pw.println(mChildren); |
| pw.print(prefix); pw.print("windowType="); pw.print(windowType); |
| pw.print(" hidden="); pw.print(hidden); |
| 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(); |
| } |
| } |