/*
* 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 android.view;
import android.animation.ValueAnimator;
import android.app.ActivityManager;
import android.content.ComponentCallbacks2;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Build;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemProperties;
import android.util.AndroidRuntimeException;
import android.util.ArraySet;
import android.util.Log;
import android.view.inputmethod.InputMethodManager;
import com.android.internal.util.FastPrintWriter;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
/**
* Provides low-level communication with the system window manager for
* operations that are not associated with any particular context.
*
* This class is only used internally to implement global functions where
* the caller already knows the display and relevant compatibility information
* for the operation. For most purposes, you should use {@link WindowManager} instead
* since it is bound to a context.
*
* @see WindowManagerImpl
* @hide
*/
public final class WindowManagerGlobal {
private static final String TAG = "WindowManager";
/**
* The user is navigating with keys (not the touch screen), so
* navigational focus should be shown.
*/
public static final int RELAYOUT_RES_IN_TOUCH_MODE = 0x1;
/**
* This is the first time the window is being drawn,
* so the client must call drawingFinished() when done
*/
public static final int RELAYOUT_RES_FIRST_TIME = 0x2;
/**
* The window manager has changed the surface from the last call.
*/
public static final int RELAYOUT_RES_SURFACE_CHANGED = 0x4;
/**
* The window manager is currently animating. It will call
* IWindow.doneAnimating() when done.
*/
public static final int RELAYOUT_RES_ANIMATING = 0x8;
/**
* Flag for relayout: the client will be later giving
* internal insets; as a result, the window will not impact other window
* layouts until the insets are given.
*/
public static final int RELAYOUT_INSETS_PENDING = 0x1;
/**
* Flag for relayout: the client may be currently using the current surface,
* so if it is to be destroyed as a part of the relayout the destroy must
* be deferred until later. The client will call performDeferredDestroy()
* when it is okay.
*/
public static final int RELAYOUT_DEFER_SURFACE_DESTROY = 0x2;
public static final int ADD_FLAG_APP_VISIBLE = 0x2;
public static final int ADD_FLAG_IN_TOUCH_MODE = RELAYOUT_RES_IN_TOUCH_MODE;
public static final int ADD_OKAY = 0;
public static final int ADD_BAD_APP_TOKEN = -1;
public static final int ADD_BAD_SUBWINDOW_TOKEN = -2;
public static final int ADD_NOT_APP_TOKEN = -3;
public static final int ADD_APP_EXITING = -4;
public static final int ADD_DUPLICATE_ADD = -5;
public static final int ADD_STARTING_NOT_NEEDED = -6;
public static final int ADD_MULTIPLE_SINGLETON = -7;
public static final int ADD_PERMISSION_DENIED = -8;
public static final int ADD_INVALID_DISPLAY = -9;
public static final int ADD_INVALID_TYPE = -10;
private static WindowManagerGlobal sDefaultWindowManager;
private static IWindowManager sWindowManagerService;
private static IWindowSession sWindowSession;
private final Object mLock = new Object();
private final ArrayList<View> mViews = new ArrayList<View>();
private final ArrayList<ViewRootImpl> mRoots = new ArrayList<ViewRootImpl>();
private final ArrayList<WindowManager.LayoutParams> mParams =
new ArrayList<WindowManager.LayoutParams>();
private final ArraySet<View> mDyingViews = new ArraySet<View>();
private Runnable mSystemPropertyUpdater;
private WindowManagerGlobal() {
}
public static void initialize() {
getWindowManagerService();
}
public static WindowManagerGlobal getInstance() {
synchronized (WindowManagerGlobal.class) {
if (sDefaultWindowManager == null) {
sDefaultWindowManager = new WindowManagerGlobal();
}
return sDefaultWindowManager;
}
}
public static IWindowManager getWindowManagerService() {
synchronized (WindowManagerGlobal.class) {
if (sWindowManagerService == null) {
sWindowManagerService = IWindowManager.Stub.asInterface(
ServiceManager.getService("window"));
try {
sWindowManagerService = getWindowManagerService();
ValueAnimator.setDurationScale(sWindowManagerService.getCurrentAnimatorScale());
} catch (RemoteException e) {
Log.e(TAG, "Failed to get WindowManagerService, cannot set animator scale", e);
}
}
return sWindowManagerService;
}
}
public static IWindowSession getWindowSession() {
synchronized (WindowManagerGlobal.class) {
if (sWindowSession == null) {
try {
InputMethodManager imm = InputMethodManager.getInstance();
IWindowManager windowManager = getWindowManagerService();
sWindowSession = windowManager.openSession(
new IWindowSessionCallback.Stub() {
@Override
public void onAnimatorScaleChanged(float scale) {
ValueAnimator.setDurationScale(scale);
}
},
imm.getClient(), imm.getInputContext());
} catch (RemoteException e) {
Log.e(TAG, "Failed to open window session", e);
}
}
return sWindowSession;
}
}
public static IWindowSession peekWindowSession() {
synchronized (WindowManagerGlobal.class) {
return sWindowSession;
}
}
public String[] getViewRootNames() {
synchronized (mLock) {
final int numRoots = mRoots.size();
String[] mViewRoots = new String[numRoots];
for (int i = 0; i < numRoots; ++i) {
mViewRoots[i] = getWindowName(mRoots.get(i));
}
return mViewRoots;
}
}
public View getRootView(String name) {
synchronized (mLock) {
for (int i = mRoots.size() - 1; i >= 0; --i) {
final ViewRootImpl root = mRoots.get(i);
if (name.equals(getWindowName(root))) return root.getView();
}
}
return null;
}
public void addView(View view, ViewGroup.LayoutParams params,
Display display, Window parentWindow) {
if (view == null) {
throw new IllegalArgumentException("view must not be null");
}
if (display == null) {
throw new IllegalArgumentException("display must not be null");
}
if (!(params instanceof WindowManager.LayoutParams)) {
throw new IllegalArgumentException("Params must be WindowManager.LayoutParams");
}
final WindowManager.LayoutParams wparams = (WindowManager.LayoutParams)params;
if (parentWindow != null) {
parentWindow.adjustLayoutParamsForSubWindow(wparams);
} else {
// If there's no parent and we're running on L or above (or in the
// system context), assume we want hardware acceleration.
final Context context = view.getContext();
if (context != null
&& context.getApplicationInfo().targetSdkVersion >= Build.VERSION_CODES.LOLLIPOP) {
wparams.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
}
}
ViewRootImpl root;
View panelParentView = null;
synchronized (mLock) {
// Start watching for system property changes.
if (mSystemPropertyUpdater == null) {
mSystemPropertyUpdater = new Runnable() {
@Override public void run() {
synchronized (mLock) {
for (int i = mRoots.size() - 1; i >= 0; --i) {
mRoots.get(i).loadSystemProperties();
}
}
}
};
SystemProperties.addChangeCallback(mSystemPropertyUpdater);
}
int index = findViewLocked(view, false);
if (index >= 0) {
if (mDyingViews.contains(view)) {
// Don't wait for MSG_DIE to make it's way through root's queue.
mRoots.get(index).doDie();
} else {
throw new IllegalStateException("View " + view
+ " has already been added to the window manager.");
}
// The previous removeView() had not completed executing. Now it has.
}
// If this is a panel window, then find the window it is being
// attached to for future reference.
if (wparams.type >= WindowManager.LayoutParams.FIRST_SUB_WINDOW &&
wparams.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
final int count = mViews.size();
for (int i = 0; i < count; i++) {
if (mRoots.get(i).mWindow.asBinder() == wparams.token) {
panelParentView = mViews.get(i);
}
}
}
root = new ViewRootImpl(view.getContext(), display);
view.setLayoutParams(wparams);
mViews.add(view);
mRoots.add(root);
mParams.add(wparams);
}
// do this last because it fires off messages to start doing things
try {
root.setView(view, wparams, panelParentView);
} catch (RuntimeException e) {
// BadTokenException or InvalidDisplayException, clean up.
synchronized (mLock) {
final int index = findViewLocked(view, false);
if (index >= 0) {
removeViewLocked(index, true);
}
}
throw e;
}
}
public void updateViewLayout(View view, ViewGroup.LayoutParams params) {
if (view == null) {
throw new IllegalArgumentException("view must not be null");
}
if (!(params instanceof WindowManager.LayoutParams)) {
throw new IllegalArgumentException("Params must be WindowManager.LayoutParams");
}
final WindowManager.LayoutParams wparams = (WindowManager.LayoutParams)params;
view.setLayoutParams(wparams);
synchronized (mLock) {
int index = findViewLocked(view, true);
ViewRootImpl root = mRoots.get(index);
mParams.remove(index);
mParams.add(index, wparams);
root.setLayoutParams(wparams, false);
}
}
public void removeView(View view, boolean immediate) {
if (view == null) {
throw new IllegalArgumentException("view must not be null");
}
synchronized (mLock) {
int index = findViewLocked(view, true);
View curView = mRoots.get(index).getView();
removeViewLocked(index, immediate);
if (curView == view) {
return;
}
throw new IllegalStateException("Calling with view " + view
+ " but the ViewAncestor is attached to " + curView);
}
}
public void closeAll(IBinder token, String who, String what) {
synchronized (mLock) {
int count = mViews.size();
//Log.i("foo", "Closing all windows of " + token);
for (int i = 0; i < count; i++) {
//Log.i("foo", "@ " + i + " token " + mParams[i].token
// + " view " + mRoots[i].getView());
if (token == null || mParams.get(i).token == token) {
ViewRootImpl root = mRoots.get(i);
//Log.i("foo", "Force closing " + root);
if (who != null) {
WindowLeaked leak = new WindowLeaked(
what + " " + who + " has leaked window "
+ root.getView() + " that was originally added here");
leak.setStackTrace(root.getLocation().getStackTrace());
Log.e(TAG, "", leak);
}
removeViewLocked(i, false);
}
}
}
}
private void removeViewLocked(int index, boolean immediate) {
ViewRootImpl root = mRoots.get(index);
View view = root.getView();
if (view != null) {
InputMethodManager imm = InputMethodManager.getInstance();
if (imm != null) {
imm.windowDismissed(mViews.get(index).getWindowToken());
}
}
boolean deferred = root.die(immediate);
if (view != null) {
view.assignParent(null);
if (deferred) {
mDyingViews.add(view);
}
}
}
void doRemoveView(ViewRootImpl root) {
synchronized (mLock) {
final int index = mRoots.indexOf(root);
if (index >= 0) {
mRoots.remove(index);
mParams.remove(index);
final View view = mViews.remove(index);
mDyingViews.remove(view);
}
}
if (HardwareRenderer.sTrimForeground && HardwareRenderer.isAvailable()) {
doTrimForeground();
}
}
private int findViewLocked(View view, boolean required) {
final int index = mViews.indexOf(view);
if (required && index < 0) {
throw new IllegalArgumentException("View=" + view + " not attached to window manager");
}
return index;
}
public static boolean shouldDestroyEglContext(int trimLevel) {
// On low-end gfx devices we trim when memory is moderate;
// on high-end devices we do this when low.
if (trimLevel >= ComponentCallbacks2.TRIM_MEMORY_COMPLETE) {
return true;
}
if (trimLevel >= ComponentCallbacks2.TRIM_MEMORY_MODERATE
&& !ActivityManager.isHighEndGfx()) {
return true;
}
return false;
}
public void trimMemory(int level) {
if (HardwareRenderer.isAvailable()) {
if (shouldDestroyEglContext(level)) {
// Destroy all hardware surfaces and resources associated to
// known windows
synchronized (mLock) {
for (int i = mRoots.size() - 1; i >= 0; --i) {
mRoots.get(i).destroyHardwareResources();
}
}
// Force a full memory flush
level = ComponentCallbacks2.TRIM_MEMORY_COMPLETE;
}
HardwareRenderer.trimMemory(level);
if (HardwareRenderer.sTrimForeground) {
doTrimForeground();
}
}
}
public static void trimForeground() {
if (HardwareRenderer.sTrimForeground && HardwareRenderer.isAvailable()) {
WindowManagerGlobal wm = WindowManagerGlobal.getInstance();
wm.doTrimForeground();
}
}
private void doTrimForeground() {
boolean hasVisibleWindows = false;
synchronized (mLock) {
for (int i = mRoots.size() - 1; i >= 0; --i) {
final ViewRootImpl root = mRoots.get(i);
if (root.mView != null && root.getHostVisibility() == View.VISIBLE
&& root.mAttachInfo.mHardwareRenderer != null) {
hasVisibleWindows = true;
} else {
root.destroyHardwareResources();
}
}
}
if (!hasVisibleWindows) {
HardwareRenderer.trimMemory(
ComponentCallbacks2.TRIM_MEMORY_COMPLETE);
}
}
public void dumpGfxInfo(FileDescriptor fd) {
FileOutputStream fout = new FileOutputStream(fd);
PrintWriter pw = new FastPrintWriter(fout);
try {
synchronized (mLock) {
final int count = mViews.size();
pw.println("Profile data in ms:");
for (int i = 0; i < count; i++) {
ViewRootImpl root = mRoots.get(i);
String name = getWindowName(root);
pw.printf("\n\t%s (visibility=%d)", name, root.getHostVisibility());
HardwareRenderer renderer =
root.getView().mAttachInfo.mHardwareRenderer;
if (renderer != null) {
renderer.dumpGfxInfo(pw, fd);
}
}
pw.println("\nView hierarchy:\n");
int viewsCount = 0;
int displayListsSize = 0;
int[] info = new int[2];
for (int i = 0; i < count; i++) {
ViewRootImpl root = mRoots.get(i);
root.dumpGfxInfo(info);
String name = getWindowName(root);
pw.printf(" %s\n %d views, %.2f kB of display lists",
name, info[0], info[1] / 1024.0f);
pw.printf("\n\n");
viewsCount += info[0];
displayListsSize += info[1];
}
pw.printf("\nTotal ViewRootImpl: %d\n", count);
pw.printf("Total Views: %d\n", viewsCount);
pw.printf("Total DisplayList: %.2f kB\n\n", displayListsSize / 1024.0f);
}
} finally {
pw.flush();
}
}
private static String getWindowName(ViewRootImpl root) {
return root.mWindowAttributes.getTitle() + "/" +
root.getClass().getName() + '@' + Integer.toHexString(root.hashCode());
}
public void setStoppedState(IBinder token, boolean stopped) {
synchronized (mLock) {
int count = mViews.size();
for (int i = 0; i < count; i++) {
if (token == null || mParams.get(i).token == token) {
ViewRootImpl root = mRoots.get(i);
root.setStopped(stopped);
}
}
}
}
public void reportNewConfiguration(Configuration config) {
synchronized (mLock) {
int count = mViews.size();
config = new Configuration(config);
for (int i=0; i < count; i++) {
ViewRootImpl root = mRoots.get(i);
root.requestUpdateConfiguration(config);
}
}
}
/** @hide */
public void changeCanvasOpacity(IBinder token, boolean opaque) {
if (token == null) {
return;
}
synchronized (mLock) {
for (int i = mParams.size() - 1; i >= 0; --i) {
if (mParams.get(i).token == token) {
mRoots.get(i).changeCanvasOpacity(opaque);
return;
}
}
}
}
}
final class WindowLeaked extends AndroidRuntimeException {
public WindowLeaked(String msg) {
super(msg);
}
}
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