9a230e01a1
This cleans up how ui flags are managed between the client and window manager. It still reports the global UI mode state to the callback, but we now only clear certain flags when the system goes out of a state (currently this just means the hide nav bar mode), and don't corrupt other flags in the application when the global state changes. Also introduces a sequence number between the app and window manager, to avoid using bad old data coming from the app during these transitions. Change-Id: I40bbd12d9b7b69fc0ff1c7dc0cb58a933d4dfb23
425 lines
17 KiB
Java
425 lines
17 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wm;
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import com.android.internal.view.IInputContext;
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import com.android.internal.view.IInputMethodClient;
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import com.android.internal.view.IInputMethodManager;
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import com.android.server.wm.WindowManagerService.H;
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import android.content.ClipData;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.graphics.Rect;
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import android.graphics.Region;
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import android.os.Binder;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.os.Parcel;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.util.Slog;
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import android.view.IWindow;
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import android.view.IWindowSession;
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import android.view.InputChannel;
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import android.view.Surface;
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import android.view.SurfaceSession;
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import android.view.WindowManager;
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import java.io.PrintWriter;
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/**
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* This class represents an active client session. There is generally one
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* Session object per process that is interacting with the window manager.
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*/
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final class Session extends IWindowSession.Stub
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implements IBinder.DeathRecipient {
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final WindowManagerService mService;
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final IInputMethodClient mClient;
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final IInputContext mInputContext;
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final int mUid;
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final int mPid;
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final String mStringName;
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SurfaceSession mSurfaceSession;
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int mNumWindow = 0;
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boolean mClientDead = false;
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public Session(WindowManagerService service, IInputMethodClient client,
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IInputContext inputContext) {
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mService = service;
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mClient = client;
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mInputContext = inputContext;
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mUid = Binder.getCallingUid();
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mPid = Binder.getCallingPid();
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StringBuilder sb = new StringBuilder();
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sb.append("Session{");
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sb.append(Integer.toHexString(System.identityHashCode(this)));
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sb.append(" uid ");
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sb.append(mUid);
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sb.append("}");
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mStringName = sb.toString();
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synchronized (mService.mWindowMap) {
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if (mService.mInputMethodManager == null && mService.mHaveInputMethods) {
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IBinder b = ServiceManager.getService(
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Context.INPUT_METHOD_SERVICE);
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mService.mInputMethodManager = IInputMethodManager.Stub.asInterface(b);
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}
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}
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long ident = Binder.clearCallingIdentity();
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try {
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// Note: it is safe to call in to the input method manager
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// here because we are not holding our lock.
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if (mService.mInputMethodManager != null) {
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mService.mInputMethodManager.addClient(client, inputContext,
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mUid, mPid);
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} else {
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client.setUsingInputMethod(false);
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}
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client.asBinder().linkToDeath(this, 0);
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} catch (RemoteException e) {
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// The caller has died, so we can just forget about this.
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try {
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if (mService.mInputMethodManager != null) {
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mService.mInputMethodManager.removeClient(client);
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}
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} catch (RemoteException ee) {
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}
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
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throws RemoteException {
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try {
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return super.onTransact(code, data, reply, flags);
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} catch (RuntimeException e) {
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// Log all 'real' exceptions thrown to the caller
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if (!(e instanceof SecurityException)) {
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Slog.e(WindowManagerService.TAG, "Window Session Crash", e);
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}
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throw e;
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}
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}
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public void binderDied() {
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// Note: it is safe to call in to the input method manager
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// here because we are not holding our lock.
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try {
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if (mService.mInputMethodManager != null) {
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mService.mInputMethodManager.removeClient(mClient);
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}
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} catch (RemoteException e) {
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}
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synchronized(mService.mWindowMap) {
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mClient.asBinder().unlinkToDeath(this, 0);
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mClientDead = true;
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killSessionLocked();
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}
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}
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public int add(IWindow window, int seq, WindowManager.LayoutParams attrs,
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int viewVisibility, Rect outContentInsets, InputChannel outInputChannel) {
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return mService.addWindow(this, window, seq, attrs, viewVisibility, outContentInsets,
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outInputChannel);
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}
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public int addWithoutInputChannel(IWindow window, int seq, WindowManager.LayoutParams attrs,
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int viewVisibility, Rect outContentInsets) {
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return mService.addWindow(this, window, seq, attrs, viewVisibility, outContentInsets, null);
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}
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public void remove(IWindow window) {
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mService.removeWindow(this, window);
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}
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public int relayout(IWindow window, int seq, WindowManager.LayoutParams attrs,
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int requestedWidth, int requestedHeight, int viewFlags,
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boolean insetsPending, Rect outFrame, Rect outContentInsets,
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Rect outVisibleInsets, Configuration outConfig, Surface outSurface) {
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if (false) Slog.d(WindowManagerService.TAG, ">>>>>> ENTERED relayout from "
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+ Binder.getCallingPid());
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int res = mService.relayoutWindow(this, window, seq, attrs,
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requestedWidth, requestedHeight, viewFlags, insetsPending,
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outFrame, outContentInsets, outVisibleInsets, outConfig, outSurface);
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if (false) Slog.d(WindowManagerService.TAG, "<<<<<< EXITING relayout to "
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+ Binder.getCallingPid());
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return res;
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}
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public boolean outOfMemory(IWindow window) {
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return mService.outOfMemoryWindow(this, window);
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}
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public void setTransparentRegion(IWindow window, Region region) {
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mService.setTransparentRegionWindow(this, window, region);
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}
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public void setInsets(IWindow window, int touchableInsets,
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Rect contentInsets, Rect visibleInsets, Region touchableArea) {
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mService.setInsetsWindow(this, window, touchableInsets, contentInsets,
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visibleInsets, touchableArea);
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}
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public void getDisplayFrame(IWindow window, Rect outDisplayFrame) {
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mService.getWindowDisplayFrame(this, window, outDisplayFrame);
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}
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public void finishDrawing(IWindow window) {
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if (WindowManagerService.localLOGV) Slog.v(
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WindowManagerService.TAG, "IWindow finishDrawing called for " + window);
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mService.finishDrawingWindow(this, window);
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}
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public void setInTouchMode(boolean mode) {
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synchronized(mService.mWindowMap) {
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mService.mInTouchMode = mode;
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}
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}
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public boolean getInTouchMode() {
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synchronized(mService.mWindowMap) {
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return mService.mInTouchMode;
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}
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}
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public boolean performHapticFeedback(IWindow window, int effectId,
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boolean always) {
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synchronized(mService.mWindowMap) {
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long ident = Binder.clearCallingIdentity();
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try {
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return mService.mPolicy.performHapticFeedbackLw(
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mService.windowForClientLocked(this, window, true),
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effectId, always);
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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}
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/* Drag/drop */
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public IBinder prepareDrag(IWindow window, int flags,
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int width, int height, Surface outSurface) {
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return mService.prepareDragSurface(window, mSurfaceSession, flags,
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width, height, outSurface);
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}
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public boolean performDrag(IWindow window, IBinder dragToken,
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float touchX, float touchY, float thumbCenterX, float thumbCenterY,
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ClipData data) {
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if (WindowManagerService.DEBUG_DRAG) {
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Slog.d(WindowManagerService.TAG, "perform drag: win=" + window + " data=" + data);
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}
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synchronized (mService.mWindowMap) {
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if (mService.mDragState == null) {
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Slog.w(WindowManagerService.TAG, "No drag prepared");
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throw new IllegalStateException("performDrag() without prepareDrag()");
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}
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if (dragToken != mService.mDragState.mToken) {
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Slog.w(WindowManagerService.TAG, "Performing mismatched drag");
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throw new IllegalStateException("performDrag() does not match prepareDrag()");
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}
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WindowState callingWin = mService.windowForClientLocked(null, window, false);
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if (callingWin == null) {
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Slog.w(WindowManagerService.TAG, "Bad requesting window " + window);
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return false; // !!! TODO: throw here?
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}
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// !!! TODO: if input is not still focused on the initiating window, fail
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// the drag initiation (e.g. an alarm window popped up just as the application
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// called performDrag()
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mService.mH.removeMessages(H.DRAG_START_TIMEOUT, window.asBinder());
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// !!! TODO: extract the current touch (x, y) in screen coordinates. That
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// will let us eliminate the (touchX,touchY) parameters from the API.
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// !!! FIXME: put all this heavy stuff onto the mH looper, as well as
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// the actual drag event dispatch stuff in the dragstate
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mService.mDragState.register();
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mService.mInputMonitor.updateInputWindowsLw(true /*force*/);
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if (!mService.mInputManager.transferTouchFocus(callingWin.mInputChannel,
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mService.mDragState.mServerChannel)) {
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Slog.e(WindowManagerService.TAG, "Unable to transfer touch focus");
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mService.mDragState.unregister();
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mService.mDragState = null;
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mService.mInputMonitor.updateInputWindowsLw(true /*force*/);
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return false;
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}
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mService.mDragState.mData = data;
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mService.mDragState.mCurrentX = touchX;
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mService.mDragState.mCurrentY = touchY;
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mService.mDragState.broadcastDragStartedLw(touchX, touchY);
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// remember the thumb offsets for later
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mService.mDragState.mThumbOffsetX = thumbCenterX;
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mService.mDragState.mThumbOffsetY = thumbCenterY;
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// Make the surface visible at the proper location
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final Surface surface = mService.mDragState.mSurface;
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if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, ">>> OPEN TRANSACTION performDrag");
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Surface.openTransaction();
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try {
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surface.setPosition(touchX - thumbCenterX,
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touchY - thumbCenterY);
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surface.setAlpha(.7071f);
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surface.setLayer(mService.mDragState.getDragLayerLw());
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surface.show();
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} finally {
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Surface.closeTransaction();
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if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, "<<< CLOSE TRANSACTION performDrag");
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}
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}
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return true; // success!
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}
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public void reportDropResult(IWindow window, boolean consumed) {
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IBinder token = window.asBinder();
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if (WindowManagerService.DEBUG_DRAG) {
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Slog.d(WindowManagerService.TAG, "Drop result=" + consumed + " reported by " + token);
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}
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synchronized (mService.mWindowMap) {
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long ident = Binder.clearCallingIdentity();
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try {
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if (mService.mDragState == null || mService.mDragState.mToken != token) {
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Slog.w(WindowManagerService.TAG, "Invalid drop-result claim by " + window);
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throw new IllegalStateException("reportDropResult() by non-recipient");
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}
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// The right window has responded, even if it's no longer around,
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// so be sure to halt the timeout even if the later WindowState
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// lookup fails.
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mService.mH.removeMessages(H.DRAG_END_TIMEOUT, window.asBinder());
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WindowState callingWin = mService.windowForClientLocked(null, window, false);
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if (callingWin == null) {
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Slog.w(WindowManagerService.TAG, "Bad result-reporting window " + window);
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return; // !!! TODO: throw here?
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}
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mService.mDragState.mDragResult = consumed;
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mService.mDragState.endDragLw();
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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}
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public void dragRecipientEntered(IWindow window) {
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if (WindowManagerService.DEBUG_DRAG) {
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Slog.d(WindowManagerService.TAG, "Drag into new candidate view @ " + window.asBinder());
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}
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}
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public void dragRecipientExited(IWindow window) {
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if (WindowManagerService.DEBUG_DRAG) {
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Slog.d(WindowManagerService.TAG, "Drag from old candidate view @ " + window.asBinder());
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}
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}
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public void setWallpaperPosition(IBinder window, float x, float y, float xStep, float yStep) {
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synchronized(mService.mWindowMap) {
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long ident = Binder.clearCallingIdentity();
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try {
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mService.setWindowWallpaperPositionLocked(
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mService.windowForClientLocked(this, window, true),
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x, y, xStep, yStep);
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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}
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public void wallpaperOffsetsComplete(IBinder window) {
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mService.wallpaperOffsetsComplete(window);
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}
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public Bundle sendWallpaperCommand(IBinder window, String action, int x, int y,
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int z, Bundle extras, boolean sync) {
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synchronized(mService.mWindowMap) {
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long ident = Binder.clearCallingIdentity();
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try {
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return mService.sendWindowWallpaperCommandLocked(
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mService.windowForClientLocked(this, window, true),
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action, x, y, z, extras, sync);
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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}
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public void wallpaperCommandComplete(IBinder window, Bundle result) {
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mService.wallpaperCommandComplete(window, result);
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}
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void windowAddedLocked() {
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if (mSurfaceSession == null) {
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if (WindowManagerService.localLOGV) Slog.v(
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WindowManagerService.TAG, "First window added to " + this + ", creating SurfaceSession");
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mSurfaceSession = new SurfaceSession();
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if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(
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WindowManagerService.TAG, " NEW SURFACE SESSION " + mSurfaceSession);
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mService.mSessions.add(this);
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}
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mNumWindow++;
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}
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void windowRemovedLocked() {
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mNumWindow--;
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killSessionLocked();
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}
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void killSessionLocked() {
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if (mNumWindow <= 0 && mClientDead) {
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mService.mSessions.remove(this);
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if (mSurfaceSession != null) {
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if (WindowManagerService.localLOGV) Slog.v(
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WindowManagerService.TAG, "Last window removed from " + this
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+ ", destroying " + mSurfaceSession);
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if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(
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WindowManagerService.TAG, " KILL SURFACE SESSION " + mSurfaceSession);
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try {
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mSurfaceSession.kill();
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} catch (Exception e) {
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Slog.w(WindowManagerService.TAG, "Exception thrown when killing surface session "
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+ mSurfaceSession + " in session " + this
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+ ": " + e.toString());
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}
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mSurfaceSession = null;
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}
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}
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}
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void dump(PrintWriter pw, String prefix) {
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pw.print(prefix); pw.print("mNumWindow="); pw.print(mNumWindow);
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pw.print(" mClientDead="); pw.print(mClientDead);
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pw.print(" mSurfaceSession="); pw.println(mSurfaceSession);
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}
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@Override
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public String toString() {
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return mStringName;
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}
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} |