Dianne Hackborn | 6e1eb76 | 2011-02-17 16:07:28 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.wm; |
| 18 | |
| 19 | import com.android.internal.view.IInputContext; |
| 20 | import com.android.internal.view.IInputMethodClient; |
| 21 | import com.android.internal.view.IInputMethodManager; |
| 22 | import com.android.server.wm.WindowManagerService.H; |
| 23 | |
| 24 | import android.content.ClipData; |
| 25 | import android.content.Context; |
| 26 | import android.content.res.Configuration; |
| 27 | import android.graphics.Rect; |
| 28 | import android.graphics.Region; |
| 29 | import android.os.Binder; |
| 30 | import android.os.Bundle; |
| 31 | import android.os.IBinder; |
| 32 | import android.os.Parcel; |
| 33 | import android.os.RemoteException; |
| 34 | import android.os.ServiceManager; |
| 35 | import android.util.Slog; |
| 36 | import android.view.IWindow; |
| 37 | import android.view.IWindowSession; |
| 38 | import android.view.InputChannel; |
| 39 | import android.view.Surface; |
| 40 | import android.view.SurfaceSession; |
| 41 | import android.view.WindowManager; |
| 42 | |
| 43 | import java.io.PrintWriter; |
| 44 | |
| 45 | /** |
| 46 | * This class represents an active client session. There is generally one |
| 47 | * Session object per process that is interacting with the window manager. |
| 48 | */ |
| 49 | final class Session extends IWindowSession.Stub |
| 50 | implements IBinder.DeathRecipient { |
| 51 | final WindowManagerService mService; |
| 52 | final IInputMethodClient mClient; |
| 53 | final IInputContext mInputContext; |
| 54 | final int mUid; |
| 55 | final int mPid; |
| 56 | final String mStringName; |
| 57 | SurfaceSession mSurfaceSession; |
| 58 | int mNumWindow = 0; |
| 59 | boolean mClientDead = false; |
| 60 | |
| 61 | public Session(WindowManagerService service, IInputMethodClient client, |
| 62 | IInputContext inputContext) { |
| 63 | mService = service; |
| 64 | mClient = client; |
| 65 | mInputContext = inputContext; |
| 66 | mUid = Binder.getCallingUid(); |
| 67 | mPid = Binder.getCallingPid(); |
| 68 | StringBuilder sb = new StringBuilder(); |
| 69 | sb.append("Session{"); |
| 70 | sb.append(Integer.toHexString(System.identityHashCode(this))); |
| 71 | sb.append(" uid "); |
| 72 | sb.append(mUid); |
| 73 | sb.append("}"); |
| 74 | mStringName = sb.toString(); |
| 75 | |
| 76 | synchronized (mService.mWindowMap) { |
| 77 | if (mService.mInputMethodManager == null && mService.mHaveInputMethods) { |
| 78 | IBinder b = ServiceManager.getService( |
| 79 | Context.INPUT_METHOD_SERVICE); |
| 80 | mService.mInputMethodManager = IInputMethodManager.Stub.asInterface(b); |
| 81 | } |
| 82 | } |
| 83 | long ident = Binder.clearCallingIdentity(); |
| 84 | try { |
| 85 | // Note: it is safe to call in to the input method manager |
| 86 | // here because we are not holding our lock. |
| 87 | if (mService.mInputMethodManager != null) { |
| 88 | mService.mInputMethodManager.addClient(client, inputContext, |
| 89 | mUid, mPid); |
| 90 | } else { |
| 91 | client.setUsingInputMethod(false); |
| 92 | } |
| 93 | client.asBinder().linkToDeath(this, 0); |
| 94 | } catch (RemoteException e) { |
| 95 | // The caller has died, so we can just forget about this. |
| 96 | try { |
| 97 | if (mService.mInputMethodManager != null) { |
| 98 | mService.mInputMethodManager.removeClient(client); |
| 99 | } |
| 100 | } catch (RemoteException ee) { |
| 101 | } |
| 102 | } finally { |
| 103 | Binder.restoreCallingIdentity(ident); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public boolean onTransact(int code, Parcel data, Parcel reply, int flags) |
| 109 | throws RemoteException { |
| 110 | try { |
| 111 | return super.onTransact(code, data, reply, flags); |
| 112 | } catch (RuntimeException e) { |
| 113 | // Log all 'real' exceptions thrown to the caller |
| 114 | if (!(e instanceof SecurityException)) { |
| 115 | Slog.e(WindowManagerService.TAG, "Window Session Crash", e); |
| 116 | } |
| 117 | throw e; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | public void binderDied() { |
| 122 | // Note: it is safe to call in to the input method manager |
| 123 | // here because we are not holding our lock. |
| 124 | try { |
| 125 | if (mService.mInputMethodManager != null) { |
| 126 | mService.mInputMethodManager.removeClient(mClient); |
| 127 | } |
| 128 | } catch (RemoteException e) { |
| 129 | } |
| 130 | synchronized(mService.mWindowMap) { |
| 131 | mClient.asBinder().unlinkToDeath(this, 0); |
| 132 | mClientDead = true; |
| 133 | killSessionLocked(); |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | public int add(IWindow window, WindowManager.LayoutParams attrs, |
| 138 | int viewVisibility, Rect outContentInsets, InputChannel outInputChannel) { |
| 139 | return mService.addWindow(this, window, attrs, viewVisibility, outContentInsets, |
| 140 | outInputChannel); |
| 141 | } |
| 142 | |
| 143 | public int addWithoutInputChannel(IWindow window, WindowManager.LayoutParams attrs, |
| 144 | int viewVisibility, Rect outContentInsets) { |
| 145 | return mService.addWindow(this, window, attrs, viewVisibility, outContentInsets, null); |
| 146 | } |
| 147 | |
| 148 | public void remove(IWindow window) { |
| 149 | mService.removeWindow(this, window); |
| 150 | } |
| 151 | |
| 152 | public int relayout(IWindow window, WindowManager.LayoutParams attrs, |
| 153 | int requestedWidth, int requestedHeight, int viewFlags, |
| 154 | boolean insetsPending, Rect outFrame, Rect outContentInsets, |
| 155 | Rect outVisibleInsets, Configuration outConfig, Surface outSurface) { |
| 156 | //Log.d(TAG, ">>>>>> ENTERED relayout from " + Binder.getCallingPid()); |
| 157 | int res = mService.relayoutWindow(this, window, attrs, |
| 158 | requestedWidth, requestedHeight, viewFlags, insetsPending, |
| 159 | outFrame, outContentInsets, outVisibleInsets, outConfig, outSurface); |
| 160 | //Log.d(TAG, "<<<<<< EXITING relayout to " + Binder.getCallingPid()); |
| 161 | return res; |
| 162 | } |
| 163 | |
Dianne Hackborn | 6482517 | 2011-03-02 21:32:58 -0800 | [diff] [blame^] | 164 | public boolean outOfMemory(IWindow window) { |
| 165 | return mService.outOfMemoryWindow(this, window); |
| 166 | } |
| 167 | |
Dianne Hackborn | 6e1eb76 | 2011-02-17 16:07:28 -0800 | [diff] [blame] | 168 | public void setTransparentRegion(IWindow window, Region region) { |
| 169 | mService.setTransparentRegionWindow(this, window, region); |
| 170 | } |
| 171 | |
| 172 | public void setInsets(IWindow window, int touchableInsets, |
| 173 | Rect contentInsets, Rect visibleInsets, Region touchableArea) { |
| 174 | mService.setInsetsWindow(this, window, touchableInsets, contentInsets, |
| 175 | visibleInsets, touchableArea); |
| 176 | } |
| 177 | |
| 178 | public void getDisplayFrame(IWindow window, Rect outDisplayFrame) { |
| 179 | mService.getWindowDisplayFrame(this, window, outDisplayFrame); |
| 180 | } |
| 181 | |
| 182 | public void finishDrawing(IWindow window) { |
| 183 | if (WindowManagerService.localLOGV) Slog.v( |
| 184 | WindowManagerService.TAG, "IWindow finishDrawing called for " + window); |
| 185 | mService.finishDrawingWindow(this, window); |
| 186 | } |
| 187 | |
| 188 | public void setInTouchMode(boolean mode) { |
| 189 | synchronized(mService.mWindowMap) { |
| 190 | mService.mInTouchMode = mode; |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | public boolean getInTouchMode() { |
| 195 | synchronized(mService.mWindowMap) { |
| 196 | return mService.mInTouchMode; |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | public boolean performHapticFeedback(IWindow window, int effectId, |
| 201 | boolean always) { |
| 202 | synchronized(mService.mWindowMap) { |
| 203 | long ident = Binder.clearCallingIdentity(); |
| 204 | try { |
| 205 | return mService.mPolicy.performHapticFeedbackLw( |
| 206 | mService.windowForClientLocked(this, window, true), |
| 207 | effectId, always); |
| 208 | } finally { |
| 209 | Binder.restoreCallingIdentity(ident); |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | /* Drag/drop */ |
| 215 | public IBinder prepareDrag(IWindow window, int flags, |
| 216 | int width, int height, Surface outSurface) { |
| 217 | return mService.prepareDragSurface(window, mSurfaceSession, flags, |
| 218 | width, height, outSurface); |
| 219 | } |
| 220 | |
| 221 | public boolean performDrag(IWindow window, IBinder dragToken, |
| 222 | float touchX, float touchY, float thumbCenterX, float thumbCenterY, |
| 223 | ClipData data) { |
| 224 | if (WindowManagerService.DEBUG_DRAG) { |
| 225 | Slog.d(WindowManagerService.TAG, "perform drag: win=" + window + " data=" + data); |
| 226 | } |
| 227 | |
| 228 | synchronized (mService.mWindowMap) { |
| 229 | if (mService.mDragState == null) { |
| 230 | Slog.w(WindowManagerService.TAG, "No drag prepared"); |
| 231 | throw new IllegalStateException("performDrag() without prepareDrag()"); |
| 232 | } |
| 233 | |
| 234 | if (dragToken != mService.mDragState.mToken) { |
| 235 | Slog.w(WindowManagerService.TAG, "Performing mismatched drag"); |
| 236 | throw new IllegalStateException("performDrag() does not match prepareDrag()"); |
| 237 | } |
| 238 | |
| 239 | WindowState callingWin = mService.windowForClientLocked(null, window, false); |
| 240 | if (callingWin == null) { |
| 241 | Slog.w(WindowManagerService.TAG, "Bad requesting window " + window); |
| 242 | return false; // !!! TODO: throw here? |
| 243 | } |
| 244 | |
| 245 | // !!! TODO: if input is not still focused on the initiating window, fail |
| 246 | // the drag initiation (e.g. an alarm window popped up just as the application |
| 247 | // called performDrag() |
| 248 | |
| 249 | mService.mH.removeMessages(H.DRAG_START_TIMEOUT, window.asBinder()); |
| 250 | |
| 251 | // !!! TODO: extract the current touch (x, y) in screen coordinates. That |
| 252 | // will let us eliminate the (touchX,touchY) parameters from the API. |
| 253 | |
| 254 | // !!! FIXME: put all this heavy stuff onto the mH looper, as well as |
| 255 | // the actual drag event dispatch stuff in the dragstate |
| 256 | |
| 257 | mService.mDragState.register(); |
| 258 | mService.mInputMonitor.updateInputWindowsLw(true /*force*/); |
| 259 | if (!mService.mInputManager.transferTouchFocus(callingWin.mInputChannel, |
| 260 | mService.mDragState.mServerChannel)) { |
| 261 | Slog.e(WindowManagerService.TAG, "Unable to transfer touch focus"); |
| 262 | mService.mDragState.unregister(); |
| 263 | mService.mDragState = null; |
| 264 | mService.mInputMonitor.updateInputWindowsLw(true /*force*/); |
| 265 | return false; |
| 266 | } |
| 267 | |
| 268 | mService.mDragState.mData = data; |
| 269 | mService.mDragState.mCurrentX = touchX; |
| 270 | mService.mDragState.mCurrentY = touchY; |
| 271 | mService.mDragState.broadcastDragStartedLw(touchX, touchY); |
| 272 | |
| 273 | // remember the thumb offsets for later |
| 274 | mService.mDragState.mThumbOffsetX = thumbCenterX; |
| 275 | mService.mDragState.mThumbOffsetY = thumbCenterY; |
| 276 | |
| 277 | // Make the surface visible at the proper location |
| 278 | final Surface surface = mService.mDragState.mSurface; |
| 279 | if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, ">>> OPEN TRANSACTION performDrag"); |
| 280 | Surface.openTransaction(); |
| 281 | try { |
| 282 | surface.setPosition((int)(touchX - thumbCenterX), |
| 283 | (int)(touchY - thumbCenterY)); |
| 284 | surface.setAlpha(.7071f); |
| 285 | surface.setLayer(mService.mDragState.getDragLayerLw()); |
| 286 | surface.show(); |
| 287 | } finally { |
| 288 | Surface.closeTransaction(); |
| 289 | if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, "<<< CLOSE TRANSACTION performDrag"); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | return true; // success! |
| 294 | } |
| 295 | |
| 296 | public void reportDropResult(IWindow window, boolean consumed) { |
| 297 | IBinder token = window.asBinder(); |
| 298 | if (WindowManagerService.DEBUG_DRAG) { |
| 299 | Slog.d(WindowManagerService.TAG, "Drop result=" + consumed + " reported by " + token); |
| 300 | } |
| 301 | |
| 302 | synchronized (mService.mWindowMap) { |
| 303 | long ident = Binder.clearCallingIdentity(); |
| 304 | try { |
| 305 | if (mService.mDragState == null || mService.mDragState.mToken != token) { |
| 306 | Slog.w(WindowManagerService.TAG, "Invalid drop-result claim by " + window); |
| 307 | throw new IllegalStateException("reportDropResult() by non-recipient"); |
| 308 | } |
| 309 | |
| 310 | // The right window has responded, even if it's no longer around, |
| 311 | // so be sure to halt the timeout even if the later WindowState |
| 312 | // lookup fails. |
| 313 | mService.mH.removeMessages(H.DRAG_END_TIMEOUT, window.asBinder()); |
| 314 | WindowState callingWin = mService.windowForClientLocked(null, window, false); |
| 315 | if (callingWin == null) { |
| 316 | Slog.w(WindowManagerService.TAG, "Bad result-reporting window " + window); |
| 317 | return; // !!! TODO: throw here? |
| 318 | } |
| 319 | |
| 320 | mService.mDragState.mDragResult = consumed; |
| 321 | mService.mDragState.endDragLw(); |
| 322 | } finally { |
| 323 | Binder.restoreCallingIdentity(ident); |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | public void dragRecipientEntered(IWindow window) { |
| 329 | if (WindowManagerService.DEBUG_DRAG) { |
| 330 | Slog.d(WindowManagerService.TAG, "Drag into new candidate view @ " + window.asBinder()); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | public void dragRecipientExited(IWindow window) { |
| 335 | if (WindowManagerService.DEBUG_DRAG) { |
| 336 | Slog.d(WindowManagerService.TAG, "Drag from old candidate view @ " + window.asBinder()); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | public void setWallpaperPosition(IBinder window, float x, float y, float xStep, float yStep) { |
| 341 | synchronized(mService.mWindowMap) { |
| 342 | long ident = Binder.clearCallingIdentity(); |
| 343 | try { |
| 344 | mService.setWindowWallpaperPositionLocked( |
| 345 | mService.windowForClientLocked(this, window, true), |
| 346 | x, y, xStep, yStep); |
| 347 | } finally { |
| 348 | Binder.restoreCallingIdentity(ident); |
| 349 | } |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | public void wallpaperOffsetsComplete(IBinder window) { |
| 354 | mService.wallpaperOffsetsComplete(window); |
| 355 | } |
| 356 | |
| 357 | public Bundle sendWallpaperCommand(IBinder window, String action, int x, int y, |
| 358 | int z, Bundle extras, boolean sync) { |
| 359 | synchronized(mService.mWindowMap) { |
| 360 | long ident = Binder.clearCallingIdentity(); |
| 361 | try { |
| 362 | return mService.sendWindowWallpaperCommandLocked( |
| 363 | mService.windowForClientLocked(this, window, true), |
| 364 | action, x, y, z, extras, sync); |
| 365 | } finally { |
| 366 | Binder.restoreCallingIdentity(ident); |
| 367 | } |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | public void wallpaperCommandComplete(IBinder window, Bundle result) { |
| 372 | mService.wallpaperCommandComplete(window, result); |
| 373 | } |
| 374 | |
| 375 | void windowAddedLocked() { |
| 376 | if (mSurfaceSession == null) { |
| 377 | if (WindowManagerService.localLOGV) Slog.v( |
| 378 | WindowManagerService.TAG, "First window added to " + this + ", creating SurfaceSession"); |
| 379 | mSurfaceSession = new SurfaceSession(); |
| 380 | if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i( |
| 381 | WindowManagerService.TAG, " NEW SURFACE SESSION " + mSurfaceSession); |
| 382 | mService.mSessions.add(this); |
| 383 | } |
| 384 | mNumWindow++; |
| 385 | } |
| 386 | |
| 387 | void windowRemovedLocked() { |
| 388 | mNumWindow--; |
| 389 | killSessionLocked(); |
| 390 | } |
| 391 | |
| 392 | void killSessionLocked() { |
| 393 | if (mNumWindow <= 0 && mClientDead) { |
| 394 | mService.mSessions.remove(this); |
| 395 | if (mSurfaceSession != null) { |
| 396 | if (WindowManagerService.localLOGV) Slog.v( |
| 397 | WindowManagerService.TAG, "Last window removed from " + this |
| 398 | + ", destroying " + mSurfaceSession); |
| 399 | if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i( |
| 400 | WindowManagerService.TAG, " KILL SURFACE SESSION " + mSurfaceSession); |
| 401 | try { |
| 402 | mSurfaceSession.kill(); |
| 403 | } catch (Exception e) { |
| 404 | Slog.w(WindowManagerService.TAG, "Exception thrown when killing surface session " |
| 405 | + mSurfaceSession + " in session " + this |
| 406 | + ": " + e.toString()); |
| 407 | } |
| 408 | mSurfaceSession = null; |
| 409 | } |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | void dump(PrintWriter pw, String prefix) { |
| 414 | pw.print(prefix); pw.print("mNumWindow="); pw.print(mNumWindow); |
| 415 | pw.print(" mClientDead="); pw.print(mClientDead); |
| 416 | pw.print(" mSurfaceSession="); pw.println(mSurfaceSession); |
| 417 | } |
| 418 | |
| 419 | @Override |
| 420 | public String toString() { |
| 421 | return mStringName; |
| 422 | } |
| 423 | } |