| /* |
| * Copyright (C) 2012 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 com.android.server.am.ActivityStackSupervisor.HOME_STACK_ID; |
| import static com.android.server.wm.WindowManagerService.DEBUG_STACK; |
| import static com.android.server.wm.WindowManagerService.TAG; |
| |
| import android.graphics.Rect; |
| import android.util.Slog; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| |
| class DisplayContentList extends ArrayList<DisplayContent> { |
| } |
| |
| /** |
| * Utility class for keeping track of the WindowStates and other pertinent contents of a |
| * particular Display. |
| * |
| * IMPORTANT: No method from this class should ever be used without holding |
| * WindowManagerService.mWindowMap. |
| */ |
| class DisplayContent { |
| |
| /** Unique identifier of this stack. */ |
| private final int mDisplayId; |
| |
| /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element |
| * from mDisplayWindows; */ |
| private WindowList mWindows = new WindowList(); |
| |
| // This protects the following display size properties, so that |
| // getDisplaySize() doesn't need to acquire the global lock. This is |
| // needed because the window manager sometimes needs to use ActivityThread |
| // while it has its global state locked (for example to load animation |
| // resources), but the ActivityThread also needs get the current display |
| // size sometimes when it has its package lock held. |
| // |
| // These will only be modified with both mWindowMap and mDisplaySizeLock |
| // held (in that order) so the window manager doesn't need to acquire this |
| // lock when needing these values in its normal operation. |
| final Object mDisplaySizeLock = new Object(); |
| int mInitialDisplayWidth = 0; |
| int mInitialDisplayHeight = 0; |
| int mInitialDisplayDensity = 0; |
| int mBaseDisplayWidth = 0; |
| int mBaseDisplayHeight = 0; |
| int mBaseDisplayDensity = 0; |
| private final DisplayInfo mDisplayInfo = new DisplayInfo(); |
| private final Display mDisplay; |
| |
| // Accessed directly by all users. |
| boolean layoutNeeded; |
| int pendingLayoutChanges; |
| final boolean isDefaultDisplay; |
| |
| /** |
| * Window tokens that are in the process of exiting, but still |
| * on screen for animations. |
| */ |
| final ArrayList<WindowToken> mExitingTokens = new ArrayList<WindowToken>(); |
| |
| /** |
| * Application tokens that are in the process of exiting, but still |
| * on screen for animations. |
| */ |
| final AppTokenList mExitingAppTokens = new AppTokenList(); |
| |
| /** Array containing the home StackBox and possibly one more which would contain apps */ |
| private ArrayList<StackBox> mStackBoxes = new ArrayList<StackBox>(); |
| |
| /** True when the home StackBox is at the top of mStackBoxes, false otherwise */ |
| private TaskStack mHomeStack = null; |
| |
| /** Save allocating when retrieving tasks */ |
| ArrayList<Task> mTmpTasks = new ArrayList<Task>(); |
| |
| /** Sorted most recent at top, oldest at [0]. */ |
| ArrayList<TaskStack> mStackHistory = new ArrayList<TaskStack>(); |
| |
| /** |
| * @param display May not be null. |
| */ |
| DisplayContent(Display display) { |
| mDisplay = display; |
| mDisplayId = display.getDisplayId(); |
| display.getDisplayInfo(mDisplayInfo); |
| isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; |
| } |
| |
| int getDisplayId() { |
| return mDisplayId; |
| } |
| |
| WindowList getWindowList() { |
| return mWindows; |
| } |
| |
| Display getDisplay() { |
| return mDisplay; |
| } |
| |
| DisplayInfo getDisplayInfo() { |
| return mDisplayInfo; |
| } |
| |
| boolean homeOnTop() { |
| return mStackBoxes.get(0).mStack != mHomeStack; |
| } |
| |
| void moveStack(TaskStack stack, boolean toTop) { |
| mStackHistory.remove(stack); |
| mStackHistory.add(toTop ? mStackHistory.size() : 0, stack); |
| } |
| |
| /** |
| * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. |
| * @return All the Tasks, in order, on this display. |
| */ |
| ArrayList<Task> getTasks() { |
| mTmpTasks.clear(); |
| final int numStacks = mStackHistory.size(); |
| for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { |
| mTmpTasks.addAll(mStackHistory.get(stackNdx).getTasks()); |
| } |
| if (WindowManagerService.DEBUG_LAYERS) Slog.i(TAG, "getTasks: mStackHistory=" + |
| mStackHistory); |
| return mTmpTasks; |
| } |
| |
| TaskStack getHomeStack() { |
| return mHomeStack; |
| } |
| |
| public void updateDisplayInfo() { |
| mDisplay.getDisplayInfo(mDisplayInfo); |
| } |
| |
| /** @return The number of tokens in all of the Tasks on this display. */ |
| int numTokens() { |
| getTasks(); |
| int count = 0; |
| for (int taskNdx = mTmpTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| count += mTmpTasks.get(taskNdx).mAppTokens.size(); |
| } |
| return count; |
| } |
| |
| /** Refer to {@link WindowManagerService#createStack(int, int, int, float)} */ |
| TaskStack createStack(int stackId, int relativeStackId, int position, float weight) { |
| TaskStack newStack = null; |
| if (DEBUG_STACK) Slog.d(TAG, "createStack: stackId=" + stackId + " relativeStackId=" |
| + relativeStackId + " position=" + position + " weight=" + weight); |
| if (mStackBoxes.isEmpty()) { |
| if (stackId != HOME_STACK_ID) { |
| throw new IllegalArgumentException("createStack: First stackId not " |
| + HOME_STACK_ID); |
| } |
| StackBox newBox = new StackBox(this, null); |
| mStackBoxes.add(newBox); |
| newStack = new TaskStack(stackId, this); |
| newStack.mStackBox = newBox; |
| newBox.mStack = newStack; |
| mHomeStack = newStack; |
| } else { |
| int stackBoxNdx; |
| for (stackBoxNdx = mStackBoxes.size() - 1; stackBoxNdx >= 0; --stackBoxNdx) { |
| final StackBox box = mStackBoxes.get(stackBoxNdx); |
| if (position == StackBox.TASK_STACK_GOES_OVER |
| || position == StackBox.TASK_STACK_GOES_UNDER) { |
| // Position indicates a new box is added at top level only. |
| if (box.contains(relativeStackId)) { |
| StackBox newBox = new StackBox(this, null); |
| newStack = new TaskStack(stackId, this); |
| newStack.mStackBox = newBox; |
| newBox.mStack = newStack; |
| final int offset = position == StackBox.TASK_STACK_GOES_OVER ? 1 : 0; |
| if (DEBUG_STACK) Slog.d(TAG, "createStack: inserting stack at " + |
| (stackBoxNdx + offset)); |
| mStackBoxes.add(stackBoxNdx + offset, newBox); |
| break; |
| } |
| } else { |
| // Remaining position values indicate a box must be split. |
| newStack = box.split(stackId, relativeStackId, position, weight); |
| if (newStack != null) { |
| break; |
| } |
| } |
| } |
| if (stackBoxNdx < 0) { |
| throw new IllegalArgumentException("createStack: stackId " + relativeStackId |
| + " not found."); |
| } |
| } |
| if (newStack != null) { |
| layoutNeeded = true; |
| } |
| return newStack; |
| } |
| |
| /** Refer to {@link WindowManagerService#resizeStack(int, float)} */ |
| boolean resizeStack(int stackId, float weight) { |
| for (int stackBoxNdx = mStackBoxes.size() - 1; stackBoxNdx >= 0; --stackBoxNdx) { |
| final StackBox box = mStackBoxes.get(stackBoxNdx); |
| if (box.resize(stackId, weight)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void addStackBox(StackBox box, boolean toTop) { |
| if (mStackBoxes.size() >= 2) { |
| throw new RuntimeException("addStackBox: Too many toplevel StackBoxes!"); |
| } |
| mStackBoxes.add(toTop ? mStackBoxes.size() : 0, box); |
| } |
| |
| void removeStackBox(StackBox box) { |
| if (DEBUG_STACK) Slog.d(TAG, "removeStackBox: box=" + box); |
| final TaskStack stack = box.mStack; |
| if (stack != null && stack.mStackId == HOME_STACK_ID) { |
| // Never delete the home stack, even if it is empty. |
| if (DEBUG_STACK) Slog.d(TAG, "removeStackBox: Not deleting home stack."); |
| return; |
| } |
| mStackBoxes.remove(box); |
| } |
| |
| /** |
| * Move the home StackBox to the top or bottom of mStackBoxes. That is the only place |
| * it is allowed to be. This is a nop if the home StackBox is already in the correct position. |
| * @param toTop Move home to the top of mStackBoxes if true, to the bottom if false. |
| * @return true if a change was made, false otherwise. |
| */ |
| boolean moveHomeStackBox(boolean toTop) { |
| if (DEBUG_STACK) Slog.d(TAG, "moveHomeStackBox: toTop=" + toTop); |
| switch (mStackBoxes.size()) { |
| case 0: throw new RuntimeException("moveHomeStackBox: No home StackBox!"); |
| case 1: return false; // Only the home StackBox exists. |
| case 2: |
| if (homeOnTop() ^ toTop) { |
| mStackBoxes.add(mStackBoxes.remove(0)); |
| return true; |
| } |
| return false; |
| default: throw new RuntimeException("moveHomeStackBox: Too many toplevel StackBoxes!"); |
| } |
| } |
| |
| /** |
| * Propagate the new bounds to all child stack boxes, applying weights as we move down. |
| * @param contentRect The bounds to apply at the top level. |
| */ |
| void setStackBoxSize(Rect contentRect) { |
| for (int stackBoxNdx = mStackBoxes.size() - 1; stackBoxNdx >= 0; --stackBoxNdx) { |
| mStackBoxes.get(stackBoxNdx).setStackBoxSizes(contentRect); |
| } |
| } |
| |
| Rect getStackBounds(int stackId) { |
| for (int stackBoxNdx = mStackBoxes.size() - 1; stackBoxNdx >= 0; --stackBoxNdx) { |
| Rect bounds = mStackBoxes.get(stackBoxNdx).getStackBounds(stackId); |
| if (bounds != null) { |
| return bounds; |
| } |
| } |
| return null; |
| } |
| |
| public void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); |
| final String subPrefix = " " + prefix; |
| pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); |
| pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); |
| pw.print("dpi"); |
| if (mInitialDisplayWidth != mBaseDisplayWidth |
| || mInitialDisplayHeight != mBaseDisplayHeight |
| || mInitialDisplayDensity != mBaseDisplayDensity) { |
| pw.print(" base="); |
| pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); |
| pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); |
| } |
| pw.print(" cur="); |
| pw.print(mDisplayInfo.logicalWidth); |
| pw.print("x"); pw.print(mDisplayInfo.logicalHeight); |
| pw.print(" app="); |
| pw.print(mDisplayInfo.appWidth); |
| pw.print("x"); pw.print(mDisplayInfo.appHeight); |
| pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); |
| pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); |
| pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); |
| pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); |
| pw.print(subPrefix); pw.print("layoutNeeded="); pw.println(layoutNeeded); |
| for (int boxNdx = 0; boxNdx < mStackBoxes.size(); ++boxNdx) { |
| pw.print(prefix); pw.print("StackBox #"); pw.println(boxNdx); |
| mStackBoxes.get(boxNdx).dump(prefix + " ", pw); |
| } |
| int ndx = numTokens(); |
| if (ndx > 0) { |
| pw.println(); |
| pw.println(" Application tokens in Z order:"); |
| getTasks(); |
| for (int taskNdx = mTmpTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| AppTokenList tokens = mTmpTasks.get(taskNdx).mAppTokens; |
| for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { |
| final AppWindowToken wtoken = tokens.get(tokenNdx); |
| pw.print(" App #"); pw.print(ndx--); |
| pw.print(' '); pw.print(wtoken); pw.println(":"); |
| wtoken.dump(pw, " "); |
| } |
| } |
| } |
| if (mExitingTokens.size() > 0) { |
| pw.println(); |
| pw.println(" Exiting tokens:"); |
| for (int i=mExitingTokens.size()-1; i>=0; i--) { |
| WindowToken token = mExitingTokens.get(i); |
| pw.print(" Exiting #"); pw.print(i); |
| pw.print(' '); pw.print(token); |
| pw.println(':'); |
| token.dump(pw, " "); |
| } |
| } |
| if (mExitingAppTokens.size() > 0) { |
| pw.println(); |
| pw.println(" Exiting application tokens:"); |
| for (int i=mExitingAppTokens.size()-1; i>=0; i--) { |
| WindowToken token = mExitingAppTokens.get(i); |
| pw.print(" Exiting App #"); pw.print(i); |
| pw.print(' '); pw.print(token); |
| pw.println(':'); |
| token.dump(pw, " "); |
| } |
| } |
| pw.println(); |
| } |
| } |