void attach(IWallpaperEngineWrapper wrapper) {
if (DEBUG) Log.v(TAG, "attach: " + this + " wrapper=" + wrapper);
if (mDestroyed) {
return;
}
mIWallpaperEngine = wrapper;
mCaller = wrapper.mCaller;
mConnection = wrapper.mConnection;
mWindowToken = wrapper.mWindowToken;
mSurfaceHolder.setSizeFromLayout();
mInitializing = true;
mSession = WindowManagerGlobal.getWindowSession(getMainLooper());
mWindow.setSession(mSession);
mScreenOn = ((PowerManager) getSystemService(Context.POWER_SERVICE)).isScreenOn();
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
registerReceiver(mReceiver, filter);
if (DEBUG) Log.v(TAG, "onCreate(): " + this);
onCreate(mSurfaceHolder);
mInitializing = false;
mReportedVisible = false;
updateSurface(false, false, false);
}
void doCommand(WallpaperCommand cmd) {
Bundle result;
if (!mDestroyed) {
result = onCommand(cmd.action, cmd.x, cmd.y, cmd.z, cmd.extras, cmd.sync);
} else {
result = null;
}
if (cmd.sync) {
try {
if (DEBUG) Log.v(TAG, "Reporting command complete");
mSession.wallpaperCommandComplete(mWindow.asBinder(), result);
} catch (RemoteException e) {
}
}
}
void doOffsetsChanged(boolean always) {
if (mDestroyed) {
return;
}
if (!always && !mOffsetsChanged) {
return;
}
float xOffset;
float yOffset;
float xOffsetStep;
float yOffsetStep;
boolean sync;
synchronized (mLock) {
xOffset = mPendingXOffset;
yOffset = mPendingYOffset;
xOffsetStep = mPendingXOffsetStep;
yOffsetStep = mPendingYOffsetStep;
sync = mPendingSync;
mPendingSync = false;
mOffsetMessageEnqueued = false;
}
if (mSurfaceCreated) {
if (mReportedVisible) {
if (DEBUG) Log.v(TAG, "Offsets change in " + this + ": " + xOffset + "," + yOffset);
final int availw = mIWallpaperEngine.mReqWidth - mCurWidth;
final int xPixels = availw > 0 ? -(int) (availw * xOffset + .5f) : 0;
final int availh = mIWallpaperEngine.mReqHeight - mCurHeight;
final int yPixels = availh > 0 ? -(int) (availh * yOffset + .5f) : 0;
onOffsetsChanged(xOffset, yOffset, xOffsetStep, yOffsetStep, xPixels, yPixels);
} else {
mOffsetsChanged = true;
}
}
if (sync) {
try {
if (DEBUG) Log.v(TAG, "Reporting offsets change complete");
mSession.wallpaperOffsetsComplete(mWindow.asBinder());
} catch (RemoteException e) {
}
}
}