Add support for power keys, improve behavior of virtual keys.

The platform now knows how to deal with a platform key, which at this
point is "just like end call, but don't end a call."

Also improve the handling of virtual keys, to allow for canceling when
sliding off into the display and providing haptic feedback.

Finally fixes a bug where the raw x and y in motion event were not
always set which caused the status bar to not work.

1 files changed, 27 insertions, 0 deletions

diff --git a/core/java/android/view/KeyEvent.java b/core/java/android/view/KeyEvent.java
index 6349288b7e4b..f9b16fc9f1a5 100644
--- a/core/java/android/view/KeyEvent.java
+++ b/core/java/android/view/KeyEvent.java
@@ -258,6 +258,25 @@ public class KeyEvent implements Parcelable {
     public static final int FLAG_EDITOR_ACTION = 0x10;
     
     /**
+     * When associated with up key events, this indicates that the key press
+     * has been canceled.  Typically this is used with virtual touch screen
+     * keys, where the user can slide from the virtual key area on to the
+     * display: in that case, the application will receive a canceled up
+     * event and should not perform the action normally associated with the
+     * key.  Note that for this to work, the application can not perform an
+     * action for a key until it receives an up or the long press timeout has
+     * expired. 
+     */
+    public static final int FLAG_CANCELED = 0x20;
+    
+    /**
+     * This key event was generated by a virtual (on-screen) hard key area.
+     * Typically this is an area of the touchscreen, outside of the regular
+     * display, dedicated to "hardware" buttons.
+     */
+    public static final int FLAG_VIRTUAL_HARD_KEY = 0x40;
+    
+    /**
      * Returns the maximum keycode.
      */
     public static int getMaxKeyCode() {
@@ -694,6 +713,14 @@ public class KeyEvent implements Parcelable {
     }
 
     /**
+     * For {@link #ACTION_UP} events, indicates that the event has been
+     * canceled as per {@link #FLAG_CANCELED}.
+     */
+    public final boolean isCanceled() {
+        return (mFlags&FLAG_CANCELED) != 0;
+    }
+    
+    /**
      * Retrieve the key code of the key event.  This is the physical key that
      * was pressed, <em>not</em> the Unicode character.
      *