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

3 files changed, 9 insertions, 8 deletions

diff --git a/libs/ui/tests/InputDispatcher_test.cpp b/libs/ui/tests/InputDispatcher_test.cpp
index 68f9037..7e17c57 100644
--- a/libs/ui/tests/InputDispatcher_test.cpp
+++ b/libs/ui/tests/InputDispatcher_test.cpp
@@ -66,7 +66,7 @@ private:
     }
 
     virtual bool dispatchUnhandledKey(const sp<InputChannel>& inputChannel,
-            const KeyEvent* keyEvent, uint32_t policyFlags) {
+            const KeyEvent* keyEvent, uint32_t policyFlags, KeyEvent* outFallbackKeyEvent) {
         return false;
     }
 
diff --git a/libs/ui/tests/InputPublisherAndConsumer_test.cpp b/libs/ui/tests/InputPublisherAndConsumer_test.cpp
index c6eac25..903fcaf 100644
--- a/libs/ui/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/ui/tests/InputPublisherAndConsumer_test.cpp
@@ -123,7 +123,7 @@ void InputPublisherAndConsumerTest::PublishAndConsumeKeyEvent() {
             << "consumer sendFinishedSignal should return OK";
 
     bool handled = false;
-    status = mPublisher->receiveFinishedSignal(handled);
+    status = mPublisher->receiveFinishedSignal(&handled);
     ASSERT_EQ(OK, status)
             << "publisher receiveFinishedSignal should return OK";
     ASSERT_TRUE(handled)
@@ -287,7 +287,7 @@ void InputPublisherAndConsumerTest::PublishAndConsumeMotionEvent(
             << "consumer sendFinishedSignal should return OK";
 
     bool handled = true;
-    status = mPublisher->receiveFinishedSignal(handled);
+    status = mPublisher->receiveFinishedSignal(&handled);
     ASSERT_EQ(OK, status)
             << "publisher receiveFinishedSignal should return OK";
     ASSERT_FALSE(handled)
diff --git a/libs/ui/tests/InputReader_test.cpp b/libs/ui/tests/InputReader_test.cpp
index d6c2cbd..97cbc25 100644
--- a/libs/ui/tests/InputReader_test.cpp
+++ b/libs/ui/tests/InputReader_test.cpp
@@ -1137,6 +1137,7 @@ protected:
         mFakeDispatcher = new FakeInputDispatcher();
         mFakeContext = new FakeInputReaderContext(mFakeEventHub, mFakePolicy, mFakeDispatcher);
 
+        mFakeEventHub->addDevice(DEVICE_ID, String8(DEVICE_NAME), 0);
         mDevice = new InputDevice(mFakeContext, DEVICE_ID, String8(DEVICE_NAME));
     }
 
@@ -1753,7 +1754,7 @@ TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleMetaStateAndLeds)
     process(mapper, ARBITRARY_TIME, DEVICE_ID,
             EV_KEY, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, 1, 0);
     process(mapper, ARBITRARY_TIME, DEVICE_ID,
-            EV_KEY, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, 1, 0);
+            EV_KEY, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, 0, 0);
     ASSERT_FALSE(mFakeEventHub->getLedState(DEVICE_ID, LED_CAPSL));
     ASSERT_TRUE(mFakeEventHub->getLedState(DEVICE_ID, LED_NUML));
     ASSERT_FALSE(mFakeEventHub->getLedState(DEVICE_ID, LED_SCROLLL));
@@ -2225,19 +2226,19 @@ void SingleTouchInputMapperTest::processSync(SingleTouchInputMapper* mapper) {
 }
 
 
-TEST_F(SingleTouchInputMapperTest, GetSources_WhenDisplayTypeIsTouchPad_ReturnsTouchPad) {
+TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsTouchPad_ReturnsTouchPad) {
     SingleTouchInputMapper* mapper = new SingleTouchInputMapper(mDevice);
     prepareAxes(POSITION);
-    addConfigurationProperty("touch.displayType", "touchPad");
+    addConfigurationProperty("touch.deviceType", "touchPad");
     addMapperAndConfigure(mapper);
 
     ASSERT_EQ(AINPUT_SOURCE_TOUCHPAD, mapper->getSources());
 }
 
-TEST_F(SingleTouchInputMapperTest, GetSources_WhenDisplayTypeIsTouchScreen_ReturnsTouchScreen) {
+TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsTouchScreen_ReturnsTouchScreen) {
     SingleTouchInputMapper* mapper = new SingleTouchInputMapper(mDevice);
     prepareAxes(POSITION);
-    addConfigurationProperty("touch.displayType", "touchScreen");
+    addConfigurationProperty("touch.deviceType", "touchScreen");
     addMapperAndConfigure(mapper);
 
     ASSERT_EQ(AINPUT_SOURCE_TOUCHSCREEN, mapper->getSources());