commit 49ed71db425c5054e3ad9526496a7e116c89556b
author Jeff Brown <jeffbrown@google.com> Mon Dec 06 17:13:33 2010 -0800
committer Jeff Brown <jeffbrown@google.com> Tue Dec 07 17:35:26 2010 -0800
tree 3d3b28bdaf76d5cc531fd3b52fcbb0efb32a05ba
parent f30c8287525ac049d4d7589a330be5713256046b

Add support for fallback keycodes.

This change enables the framework to synthesize key events to implement
default behavior when an application does not handle a key.
For example, this change enables numeric keypad keys to perform
their associated special function when numlock is off.

The application is informed that it is processing a fallback keypress
so it can choose to ignore it.

Added a new keycode for switching applications.

Added ALT key deadkeys.

New default key mappings:
- ESC -> BACK
- Meta+ESC -> HOME
- Alt+ESC -> MENU
- Meta+Space -> SEARCH
- Meta+Tab -> APP_SWITCH

Fixed some comments.
Fixed some tests.

Change-Id: Id7f3b6645f3a350275e624547822f72652f3defe

core/java/android/view/ViewRoot.java

diff --git a/core/java/android/view/ViewRoot.java b/core/java/android/view/ViewRoot.java
index 53cff91..9bda637 100644
--- a/core/java/android/view/ViewRoot.java
+++ b/core/java/android/view/ViewRoot.java
@@ -2310,21 +2310,23 @@
         }
 
         final int action = event.getAction();
-        final int metastate = event.getMetaState();
+        final int metaState = event.getMetaState();
         switch (action) {
             case MotionEvent.ACTION_DOWN:
                 x.reset(2);
                 y.reset(2);
                 deliverKeyEvent(new KeyEvent(curTime, curTime,
-                        KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER,
-                        0, metastate), false);
+                        KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState,
+                        KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
+                        InputDevice.SOURCE_KEYBOARD), false);
                 break;
             case MotionEvent.ACTION_UP:
                 x.reset(2);
                 y.reset(2);
                 deliverKeyEvent(new KeyEvent(curTime, curTime,
-                        KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER,
-                        0, metastate), false);
+                        KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState,
+                        KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
+                        InputDevice.SOURCE_KEYBOARD), false);
                 break;
         }
 
@@ -2374,9 +2376,11 @@
                 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: "
                         + keycode);
                 movement--;
+                int repeatCount = accelMovement - movement;
                 deliverKeyEvent(new KeyEvent(curTime, curTime,
-                        KeyEvent.ACTION_MULTIPLE, keycode,
-                        accelMovement-movement, metastate), false);
+                        KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState,
+                        KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
+                        InputDevice.SOURCE_KEYBOARD), false);
             }
             while (movement > 0) {
                 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: "
@@ -2384,10 +2388,14 @@
                 movement--;
                 curTime = SystemClock.uptimeMillis();
                 deliverKeyEvent(new KeyEvent(curTime, curTime,
-                        KeyEvent.ACTION_DOWN, keycode, 0, event.getMetaState()), false);
+                        KeyEvent.ACTION_DOWN, keycode, 0, metaState,
+                        KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
+                        InputDevice.SOURCE_KEYBOARD), false);
                 deliverKeyEvent(new KeyEvent(curTime, curTime,
-                        KeyEvent.ACTION_UP, keycode, 0, metastate), false);
-            }
+                        KeyEvent.ACTION_UP, keycode, 0, metaState,
+                        KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
+                        InputDevice.SOURCE_KEYBOARD), false);
+                }
             mLastTrackballTime = curTime;
         }