Native input dispatch rewrite work in progress.

The old dispatch mechanism has been left in place and continues to
be used by default for now.  To enable native input dispatch,
edit the ENABLE_NATIVE_DISPATCH constant in WindowManagerPolicy.

Includes part of the new input event NDK API.  Some details TBD.

To wire up input dispatch, as the ViewRoot adds a window to the
window session it receives an InputChannel object as an output
argument.  The InputChannel encapsulates the file descriptors for a
shared memory region and two pipe end-points.  The ViewRoot then
provides the InputChannel to the InputQueue.  Behind the
scenes, InputQueue simply attaches handlers to the native PollLoop object
that underlies the MessageQueue.  This way MessageQueue doesn't need
to know anything about input dispatch per-se, it just exposes (in native
code) a PollLoop that other components can use to monitor file descriptor
state changes.

There can be zero or more targets for any given input event.  Each
input target is specified by its input channel and some parameters
including flags, an X/Y coordinate offset, and the dispatch timeout.
An input target can request either synchronous dispatch (for foreground apps)
or asynchronous dispatch (fire-and-forget for wallpapers and "outside"
targets).  Currently, finding the appropriate input targets for an event
requires a call back into the WindowManagerServer from native code.
In the future this will be refactored to avoid most of these callbacks
except as required to handle pending focus transitions.

End-to-end event dispatch mostly works!

To do: event injection, rate limiting, ANRs, testing, optimization, etc.

Change-Id: I8c36b2b9e0a2d27392040ecda0f51b636456de25

2 files changed, 31 insertions, 1 deletions

diff --git a/policy/com/android/internal/policy/impl/KeyguardViewMediator.java b/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
index eb61f5e..88203c3 100644
--- a/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
+++ b/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
@@ -86,7 +86,7 @@ import android.view.WindowManagerPolicy;
  * This class is created by the initialization routine of the {@link WindowManagerPolicy},
  * and runs on its thread.  The keyguard UI is created from that thread in the
  * constructor of this class.  The apis may be called from other threads, including the
- * {@link com.android.server.KeyInputQueue}'s and {@link android.view.WindowManager}'s.
+ * {@link com.android.server.InputManager}'s and {@link android.view.WindowManager}'s.
  * Therefore, methods on this class are synchronized, and any action that is pointed
  * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI
  * thread of the keyguard.
diff --git a/policy/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/com/android/internal/policy/impl/PhoneWindowManager.java
index d152bc4..a01e25b 100755
--- a/policy/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -1641,6 +1641,36 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
         return false;
     }
+    
+    public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
+        // lid changed state
+        mLidOpen = lidOpen;
+        boolean awakeNow = mKeyguardMediator.doLidChangeTq(mLidOpen);
+        updateRotation(Surface.FLAGS_ORIENTATION_ANIMATION_DISABLE);
+        if (awakeNow) {
+            // If the lid opening and we don't have to keep the
+            // keyguard up, then we can turn on the screen
+            // immediately.
+            mKeyguardMediator.pokeWakelock();
+        } else if (keyguardIsShowingTq()) {
+            if (mLidOpen) {
+                // If we are opening the lid and not hiding the
+                // keyguard, then we need to have it turn on the
+                // screen once it is shown.
+                mKeyguardMediator.onWakeKeyWhenKeyguardShowingTq(
+                        KeyEvent.KEYCODE_POWER);
+            }
+        } else {
+            // Light up the keyboard if we are sliding up.
+            if (mLidOpen) {
+                mPowerManager.userActivity(SystemClock.uptimeMillis(), false,
+                        LocalPowerManager.BUTTON_EVENT);
+            } else {
+                mPowerManager.userActivity(SystemClock.uptimeMillis(), false,
+                        LocalPowerManager.OTHER_EVENT);
+            }
+        }
+    }
 
     
     /** {@inheritDoc} */