Sessionpublic final class Session extends IWindowSession.Stub implements IBinder.DeathRecipient| This class represents an active client session. There is generally one
Session object per process that is interacting with the window manager. |
| Fields Summary |
|---|
| final WindowManagerService | mService | | final android.view.IWindowSessionCallback | mCallback | | final com.android.internal.view.IInputMethodClient | mClient | | final com.android.internal.view.IInputContext | mInputContext | | final int | mUid | | final int | mPid | | final String | mStringName | | android.view.SurfaceSession | mSurfaceSession | | int | mNumWindow | | boolean | mClientDead | | float | mLastReportedAnimatorScale |
| Constructors Summary |
|---|
public Session(WindowManagerService service, android.view.IWindowSessionCallback callback, com.android.internal.view.IInputMethodClient client, com.android.internal.view.IInputContext inputContext)
mService = service;
mCallback = callback;
mClient = client;
mInputContext = inputContext;
mUid = Binder.getCallingUid();
mPid = Binder.getCallingPid();
mLastReportedAnimatorScale = service.getCurrentAnimatorScale();
StringBuilder sb = new StringBuilder();
sb.append("Session{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(" ");
sb.append(mPid);
if (mUid < Process.FIRST_APPLICATION_UID) {
sb.append(":");
sb.append(mUid);
} else {
sb.append(":u");
sb.append(UserHandle.getUserId(mUid));
sb.append('a");
sb.append(UserHandle.getAppId(mUid));
}
sb.append("}");
mStringName = sb.toString();
synchronized (mService.mWindowMap) {
if (mService.mInputMethodManager == null && mService.mHaveInputMethods) {
IBinder b = ServiceManager.getService(
Context.INPUT_METHOD_SERVICE);
mService.mInputMethodManager = IInputMethodManager.Stub.asInterface(b);
}
}
long ident = Binder.clearCallingIdentity();
try {
// Note: it is safe to call in to the input method manager
// here because we are not holding our lock.
if (mService.mInputMethodManager != null) {
mService.mInputMethodManager.addClient(client, inputContext,
mUid, mPid);
} else {
client.setUsingInputMethod(false);
}
client.asBinder().linkToDeath(this, 0);
} catch (RemoteException e) {
// The caller has died, so we can just forget about this.
try {
if (mService.mInputMethodManager != null) {
mService.mInputMethodManager.removeClient(client);
}
} catch (RemoteException ee) {
}
} finally {
Binder.restoreCallingIdentity(ident);
}
|
| Methods Summary |
|---|
| public int | add(android.view.IWindow window, int seq, WindowManager.LayoutParams attrs, int viewVisibility, android.graphics.Rect outContentInsets, android.graphics.Rect outStableInsets, android.view.InputChannel outInputChannel)
return addToDisplay(window, seq, attrs, viewVisibility, Display.DEFAULT_DISPLAY,
outContentInsets, outStableInsets, outInputChannel);
| | public int | addToDisplay(android.view.IWindow window, int seq, WindowManager.LayoutParams attrs, int viewVisibility, int displayId, android.graphics.Rect outContentInsets, android.graphics.Rect outStableInsets, android.view.InputChannel outInputChannel)
return mService.addWindow(this, window, seq, attrs, viewVisibility, displayId,
outContentInsets, outStableInsets, outInputChannel);
| | public int | addToDisplayWithoutInputChannel(android.view.IWindow window, int seq, WindowManager.LayoutParams attrs, int viewVisibility, int displayId, android.graphics.Rect outContentInsets, android.graphics.Rect outStableInsets)
return mService.addWindow(this, window, seq, attrs, viewVisibility, displayId,
outContentInsets, outStableInsets, null);
| | public int | addWithoutInputChannel(android.view.IWindow window, int seq, WindowManager.LayoutParams attrs, int viewVisibility, android.graphics.Rect outContentInsets, android.graphics.Rect outStableInsets)
return addToDisplayWithoutInputChannel(window, seq, attrs, viewVisibility,
Display.DEFAULT_DISPLAY, outContentInsets, outStableInsets);
| | public void | binderDied()
// Note: it is safe to call in to the input method manager
// here because we are not holding our lock.
try {
if (mService.mInputMethodManager != null) {
mService.mInputMethodManager.removeClient(mClient);
}
} catch (RemoteException e) {
}
synchronized(mService.mWindowMap) {
mClient.asBinder().unlinkToDeath(this, 0);
mClientDead = true;
killSessionLocked();
}
| | public void | dragRecipientEntered(android.view.IWindow window)
if (WindowManagerService.DEBUG_DRAG) {
Slog.d(WindowManagerService.TAG, "Drag into new candidate view @ " + window.asBinder());
}
| | public void | dragRecipientExited(android.view.IWindow window)
if (WindowManagerService.DEBUG_DRAG) {
Slog.d(WindowManagerService.TAG, "Drag from old candidate view @ " + window.asBinder());
}
| | void | dump(java.io.PrintWriter pw, java.lang.String prefix)
pw.print(prefix); pw.print("mNumWindow="); pw.print(mNumWindow);
pw.print(" mClientDead="); pw.print(mClientDead);
pw.print(" mSurfaceSession="); pw.println(mSurfaceSession);
| | public void | finishDrawing(android.view.IWindow window)
if (WindowManagerService.localLOGV) Slog.v(
WindowManagerService.TAG, "IWindow finishDrawing called for " + window);
mService.finishDrawingWindow(this, window);
| | public void | getDisplayFrame(android.view.IWindow window, android.graphics.Rect outDisplayFrame)
mService.getWindowDisplayFrame(this, window, outDisplayFrame);
| | public boolean | getInTouchMode()
synchronized(mService.mWindowMap) {
return mService.mInTouchMode;
}
| | public android.view.IWindowId | getWindowId(android.os.IBinder window)
return mService.getWindowId(window);
| | void | killSessionLocked()
if (mNumWindow <= 0 && mClientDead) {
mService.mSessions.remove(this);
if (mSurfaceSession != null) {
if (WindowManagerService.localLOGV) Slog.v(
WindowManagerService.TAG, "Last window removed from " + this
+ ", destroying " + mSurfaceSession);
if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(
WindowManagerService.TAG, " KILL SURFACE SESSION " + mSurfaceSession);
try {
mSurfaceSession.kill();
} catch (Exception e) {
Slog.w(WindowManagerService.TAG, "Exception thrown when killing surface session "
+ mSurfaceSession + " in session " + this
+ ": " + e.toString());
}
mSurfaceSession = null;
}
}
| | public void | onRectangleOnScreenRequested(android.os.IBinder token, android.graphics.Rect rectangle)
synchronized(mService.mWindowMap) {
final long identity = Binder.clearCallingIdentity();
try {
mService.onRectangleOnScreenRequested(token, rectangle);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
| | public boolean | onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags)
try {
return super.onTransact(code, data, reply, flags);
} catch (RuntimeException e) {
// Log all 'real' exceptions thrown to the caller
if (!(e instanceof SecurityException)) {
Slog.wtf(WindowManagerService.TAG, "Window Session Crash", e);
}
throw e;
}
| | public boolean | outOfMemory(android.view.IWindow window)
return mService.outOfMemoryWindow(this, window);
| | public void | performDeferredDestroy(android.view.IWindow window)
mService.performDeferredDestroyWindow(this, window);
| | public boolean | performDrag(android.view.IWindow window, android.os.IBinder dragToken, float touchX, float touchY, float thumbCenterX, float thumbCenterY, android.content.ClipData data)
if (WindowManagerService.DEBUG_DRAG) {
Slog.d(WindowManagerService.TAG, "perform drag: win=" + window + " data=" + data);
}
synchronized (mService.mWindowMap) {
if (mService.mDragState == null) {
Slog.w(WindowManagerService.TAG, "No drag prepared");
throw new IllegalStateException("performDrag() without prepareDrag()");
}
if (dragToken != mService.mDragState.mToken) {
Slog.w(WindowManagerService.TAG, "Performing mismatched drag");
throw new IllegalStateException("performDrag() does not match prepareDrag()");
}
WindowState callingWin = mService.windowForClientLocked(null, window, false);
if (callingWin == null) {
Slog.w(WindowManagerService.TAG, "Bad requesting window " + window);
return false; // !!! TODO: throw here?
}
// !!! TODO: if input is not still focused on the initiating window, fail
// the drag initiation (e.g. an alarm window popped up just as the application
// called performDrag()
mService.mH.removeMessages(H.DRAG_START_TIMEOUT, window.asBinder());
// !!! TODO: extract the current touch (x, y) in screen coordinates. That
// will let us eliminate the (touchX,touchY) parameters from the API.
// !!! FIXME: put all this heavy stuff onto the mH looper, as well as
// the actual drag event dispatch stuff in the dragstate
final DisplayContent displayContent = callingWin.getDisplayContent();
if (displayContent == null) {
return false;
}
Display display = displayContent.getDisplay();
mService.mDragState.register(display);
mService.mInputMonitor.updateInputWindowsLw(true /*force*/);
if (!mService.mInputManager.transferTouchFocus(callingWin.mInputChannel,
mService.mDragState.mServerChannel)) {
Slog.e(WindowManagerService.TAG, "Unable to transfer touch focus");
mService.mDragState.unregister();
mService.mDragState = null;
mService.mInputMonitor.updateInputWindowsLw(true /*force*/);
return false;
}
mService.mDragState.mData = data;
mService.mDragState.mCurrentX = touchX;
mService.mDragState.mCurrentY = touchY;
mService.mDragState.broadcastDragStartedLw(touchX, touchY);
// remember the thumb offsets for later
mService.mDragState.mThumbOffsetX = thumbCenterX;
mService.mDragState.mThumbOffsetY = thumbCenterY;
// Make the surface visible at the proper location
final SurfaceControl surfaceControl = mService.mDragState.mSurfaceControl;
if (WindowManagerService.SHOW_LIGHT_TRANSACTIONS) Slog.i(
WindowManagerService.TAG, ">>> OPEN TRANSACTION performDrag");
SurfaceControl.openTransaction();
try {
surfaceControl.setPosition(touchX - thumbCenterX,
touchY - thumbCenterY);
surfaceControl.setAlpha(.7071f);
surfaceControl.setLayer(mService.mDragState.getDragLayerLw());
surfaceControl.setLayerStack(display.getLayerStack());
surfaceControl.show();
} finally {
SurfaceControl.closeTransaction();
if (WindowManagerService.SHOW_LIGHT_TRANSACTIONS) Slog.i(
WindowManagerService.TAG, "<<< CLOSE TRANSACTION performDrag");
}
}
return true; // success!
| | public boolean | performHapticFeedback(android.view.IWindow window, int effectId, boolean always)
synchronized(mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
return mService.mPolicy.performHapticFeedbackLw(
mService.windowForClientLocked(this, window, true),
effectId, always);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public android.os.IBinder | prepareDrag(android.view.IWindow window, int flags, int width, int height, android.view.Surface outSurface)
return mService.prepareDragSurface(window, mSurfaceSession, flags,
width, height, outSurface);
| | public int | relayout(android.view.IWindow window, int seq, WindowManager.LayoutParams attrs, int requestedWidth, int requestedHeight, int viewFlags, int flags, android.graphics.Rect outFrame, android.graphics.Rect outOverscanInsets, android.graphics.Rect outContentInsets, android.graphics.Rect outVisibleInsets, android.graphics.Rect outStableInsets, android.content.res.Configuration outConfig, android.view.Surface outSurface)
if (false) Slog.d(WindowManagerService.TAG, ">>>>>> ENTERED relayout from "
+ Binder.getCallingPid());
int res = mService.relayoutWindow(this, window, seq, attrs,
requestedWidth, requestedHeight, viewFlags, flags,
outFrame, outOverscanInsets, outContentInsets, outVisibleInsets,
outStableInsets, outConfig, outSurface);
if (false) Slog.d(WindowManagerService.TAG, "<<<<<< EXITING relayout to "
+ Binder.getCallingPid());
return res;
| | public void | remove(android.view.IWindow window)
mService.removeWindow(this, window);
| | public void | reportDropResult(android.view.IWindow window, boolean consumed)
IBinder token = window.asBinder();
if (WindowManagerService.DEBUG_DRAG) {
Slog.d(WindowManagerService.TAG, "Drop result=" + consumed + " reported by " + token);
}
synchronized (mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
if (mService.mDragState == null) {
// Most likely the drop recipient ANRed and we ended the drag
// out from under it. Log the issue and move on.
Slog.w(WindowManagerService.TAG, "Drop result given but no drag in progress");
return;
}
if (mService.mDragState.mToken != token) {
// We're in a drag, but the wrong window has responded.
Slog.w(WindowManagerService.TAG, "Invalid drop-result claim by " + window);
throw new IllegalStateException("reportDropResult() by non-recipient");
}
// The right window has responded, even if it's no longer around,
// so be sure to halt the timeout even if the later WindowState
// lookup fails.
mService.mH.removeMessages(H.DRAG_END_TIMEOUT, window.asBinder());
WindowState callingWin = mService.windowForClientLocked(null, window, false);
if (callingWin == null) {
Slog.w(WindowManagerService.TAG, "Bad result-reporting window " + window);
return; // !!! TODO: throw here?
}
mService.mDragState.mDragResult = consumed;
mService.mDragState.endDragLw();
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public android.os.Bundle | sendWallpaperCommand(android.os.IBinder window, java.lang.String action, int x, int y, int z, android.os.Bundle extras, boolean sync)
synchronized(mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
return mService.sendWindowWallpaperCommandLocked(
mService.windowForClientLocked(this, window, true),
action, x, y, z, extras, sync);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public void | setInTouchMode(boolean mode)
synchronized(mService.mWindowMap) {
mService.mInTouchMode = mode;
}
| | public void | setInsets(android.view.IWindow window, int touchableInsets, android.graphics.Rect contentInsets, android.graphics.Rect visibleInsets, android.graphics.Region touchableArea)
mService.setInsetsWindow(this, window, touchableInsets, contentInsets,
visibleInsets, touchableArea);
| | public void | setTransparentRegion(android.view.IWindow window, android.graphics.Region region)
mService.setTransparentRegionWindow(this, window, region);
| | public void | setUniverseTransform(android.os.IBinder window, float alpha, float offx, float offy, float dsdx, float dtdx, float dsdy, float dtdy)
synchronized(mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
mService.setUniverseTransformLocked(
mService.windowForClientLocked(this, window, true),
alpha, offx, offy, dsdx, dtdx, dsdy, dtdy);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public void | setWallpaperDisplayOffset(android.os.IBinder window, int x, int y)
synchronized(mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
mService.setWindowWallpaperDisplayOffsetLocked(
mService.windowForClientLocked(this, window, true), x, y);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public void | setWallpaperPosition(android.os.IBinder window, float x, float y, float xStep, float yStep)
synchronized(mService.mWindowMap) {
long ident = Binder.clearCallingIdentity();
try {
mService.setWindowWallpaperPositionLocked(
mService.windowForClientLocked(this, window, true),
x, y, xStep, yStep);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
| | public java.lang.String | toString()
return mStringName;
| | public void | wallpaperCommandComplete(android.os.IBinder window, android.os.Bundle result)
mService.wallpaperCommandComplete(window, result);
| | public void | wallpaperOffsetsComplete(android.os.IBinder window)
mService.wallpaperOffsetsComplete(window);
| | void | windowAddedLocked()
if (mSurfaceSession == null) {
if (WindowManagerService.localLOGV) Slog.v(
WindowManagerService.TAG, "First window added to " + this + ", creating SurfaceSession");
mSurfaceSession = new SurfaceSession();
if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(
WindowManagerService.TAG, " NEW SURFACE SESSION " + mSurfaceSession);
mService.mSessions.add(this);
if (mLastReportedAnimatorScale != mService.getCurrentAnimatorScale()) {
mService.dispatchNewAnimatorScaleLocked(this);
}
}
mNumWindow++;
| | void | windowRemovedLocked()
mNumWindow--;
killSessionLocked();
|
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