private void performTraversalInTransactionLocked() {
// Perform one last traversal for each removed display device.
final int removedCount = mRemovedDisplayDevices.size();
for (int i = 0; i < removedCount; i++) {
DisplayDevice device = mRemovedDisplayDevices.get(i);
device.performTraversalInTransactionLocked();
}
mRemovedDisplayDevices.clear();
// Clear all viewports before configuring displays so that we can keep
// track of which ones we have configured.
clearViewportsLocked();
// Configure each display device.
final int count = mDisplayDevices.size();
for (int i = 0; i < count; i++) {
DisplayDevice device = mDisplayDevices.get(i);
configureDisplayInTransactionLocked(device);
device.performTraversalInTransactionLocked();
}
// Tell the input system about these new viewports.
if (mInputManagerFuncs != null) {
mHandler.sendEmptyMessage(MSG_UPDATE_VIEWPORT);
}
}
@Override
public void onStart() {
mHandler.sendEmptyMessage(MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER);
publishBinderService(Context.DISPLAY_SERVICE, new BinderService(), true /*allowIsolated*/);
publishLocalService(DisplayManagerInternal.class, new LocalService());
}
// Requests that performTraversalsInTransactionFromWindowManager be called at a
// later time to apply changes to surfaces and displays.
private void scheduleTraversalLocked(boolean inTraversal) {
if (!mPendingTraversal && mWindowManagerFuncs != null) {
mPendingTraversal = true;
if (!inTraversal) {
mHandler.sendEmptyMessage(MSG_REQUEST_TRAVERSAL);
}
}
}
/** Called when the system is ready to go. */
public void systemReady(boolean safeMode, boolean onlyCore) {
synchronized (mSyncRoot) {
mSafeMode = safeMode;
mOnlyCore = onlyCore;
}
mHandler.sendEmptyMessage(MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS);
}
public DisplayManagerService(Context context, Handler mainHandler, Handler uiHandler) {
mContext = context;
mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1");
mHandler = new DisplayManagerHandler(mainHandler.getLooper());
mUiHandler = uiHandler;
mDisplayAdapterListener = new DisplayAdapterListener();
mSingleDisplayDemoMode = SystemProperties.getBoolean("persist.demo.singledisplay", false);
mHandler.sendEmptyMessage(MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER);
}
private void sendDisplayEventLocked(int displayId, int event) {
Message msg = mHandler.obtainMessage(MSG_DELIVER_DISPLAY_EVENT, displayId, event);
mHandler.sendMessage(msg);
}
