add local focus mode and input event injection API to Window

 - This enables keyboard navigation for window without focus.
 - FLAG_LOCAL_FOCUS_MODE puts window into local focus mode.
 - Application needs to put window in local focus mode, control focus, and
   inject events to make dpad navigation work.
 - Window in local focus mode does not interact with window manager or ime
   regarding focus related events.
 - Also renamed ViewRootImpl.dispatchKey to dispatchInputEvent to allow both key and touch events injection.

Change-Id: I8e8561f29e0dade3797fb7ae3ee7690e6b7f8895

1 files changed, 14 insertions, 0 deletions

diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index 39d48a7d8de3..7a2424371724 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -1290,4 +1290,18 @@ public abstract class Window {
      * @hide
      */
     public void setDefaultLogo(int resId) { }
+
+    /**
+     * Set focus locally. The window should have the
+     * {@link WindowManager.LayoutParams#FLAG_LOCAL_FOCUS_MODE} flag set already.
+     * @param hasFocus Whether this window has focus or not.
+     * @param inTouchMode Whether this window is in touch mode or not.
+     */
+    public void setLocalFocus(boolean hasFocus, boolean inTouchMode) { }
+
+    /**
+     * Inject an event to window locally.
+     * @param event A key or touch event to inject to this window.
+     */
+    public void injectInputEvent(InputEvent event) { }
 }