Ensure the ShortcutManager uses the correct key character map.

The ShortcutManager used to only receive the key code of the key event
that triggered the shortcut.  This change now provides the shortcut
manager with the whole key event so it can look up the associated
character using the correct key character map.

To make this more efficient, added a mechanism for recycling
key events.  At the moment it is only used by key events owned by the
system process, since clients of the existing API (such as Views)
might continue to hold on to key events after dispatch has finished so
they would break if the key event were recycled by the framework.

Deprecated KeyCharacterMap.BUILT_IN_KEYBOARD.

Change-Id: I4313725dd63f2be01c350c005a41c7fde9bc67e8

include/ui/Input.h

@@ -507,10 +507,8 @@ enum InputDeviceConfigurationFileType {
 /*
  * Get the path of an input device configuration file, if one is available.
  * Spaces in the name are replaced with underscores.
+ * Considers both system provided and user installed configuration files.
  *
- * Looks in: <system-root>/usr/<type-specific-directory>/<name><extension>.
- *
- * TODO Also look in a user installable location.
  * Returns an empty string if not found.
  */
 extern String8 getInputDeviceConfigurationFilePath(

include/ui/InputDispatcher.h

@@ -291,9 +291,7 @@ public:
      * This method is expected to set the POLICY_FLAG_PASS_TO_USER policy flag if the event
      * should be dispatched to applications.
      */
-    virtual void interceptKeyBeforeQueueing(nsecs_t when, int32_t deviceId,
-            int32_t action, int32_t& flags, int32_t keyCode, int32_t scanCode,
-            uint32_t& policyFlags) = 0;
+    virtual void interceptKeyBeforeQueueing(const KeyEvent* keyEvent, uint32_t& policyFlags) = 0;
 
     /* Intercepts a generic touch, trackball or other event before queueing it.
      * The policy can use this method as an opportunity to perform power management functions
@@ -894,9 +892,6 @@ private:
     // Input channels that will receive a copy of all input events.
     Vector<sp<InputChannel> > mMonitoringChannels;
 
-    // Preallocated key event object used for policy inquiries.
-    KeyEvent mReusableKeyEvent;
-
     // Event injection and synchronization.
     Condition mInjectionResultAvailableCondition;
     bool hasInjectionPermission(int32_t injectorPid, int32_t injectorUid);

libs/ui/EventHub.cpp

@@ -146,12 +146,12 @@ uint32_t EventHub::getDeviceClasses(int32_t deviceId) const
 }
 
 void EventHub::getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const {
-    outConfiguration->clear();
-
     AutoMutex _l(mLock);
     device_t* device = getDeviceLocked(deviceId);
     if (device && device->configuration) {
         *outConfiguration = *device->configuration;
+    } else {
+        outConfiguration->clear();
     }
 }
 

libs/ui/InputDispatcher.cpp

@@ -2081,9 +2081,22 @@ void InputDispatcher::notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t sou
         return;
     }
 
+    if ((policyFlags & POLICY_FLAG_VIRTUAL) || (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY)) {
+        policyFlags |= POLICY_FLAG_VIRTUAL;
+        flags |= AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY;
+    }
+
     policyFlags |= POLICY_FLAG_TRUSTED;
-    mPolicy->interceptKeyBeforeQueueing(eventTime, deviceId, action, /*byref*/ flags,
-            keyCode, scanCode, /*byref*/ policyFlags);
+
+    KeyEvent event;
+    event.initialize(deviceId, source, action, flags, keyCode, scanCode,
+            metaState, 0, downTime, eventTime);
+
+    mPolicy->interceptKeyBeforeQueueing(&event, /*byref*/ policyFlags);
+
+    if (policyFlags & POLICY_FLAG_WOKE_HERE) {
+        flags |= AKEY_EVENT_FLAG_WOKE_HERE;
+    }
 
     bool needWake;
     { // acquire lock
@@ -2289,17 +2302,22 @@ int32_t InputDispatcher::injectInputEvent(const InputEvent* event,
             return INPUT_EVENT_INJECTION_FAILED;
         }
 
-        nsecs_t eventTime = keyEvent->getEventTime();
-        int32_t deviceId = keyEvent->getDeviceId();
         int32_t flags = keyEvent->getFlags();
-        int32_t keyCode = keyEvent->getKeyCode();
-        int32_t scanCode = keyEvent->getScanCode();
-        mPolicy->interceptKeyBeforeQueueing(eventTime, deviceId, action, /*byref*/ flags,
-                keyCode, scanCode, /*byref*/ policyFlags);
+        if (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY) {
+            policyFlags |= POLICY_FLAG_VIRTUAL;
+        }
+
+        mPolicy->interceptKeyBeforeQueueing(keyEvent, /*byref*/ policyFlags);
+
+        if (policyFlags & POLICY_FLAG_WOKE_HERE) {
+            flags |= AKEY_EVENT_FLAG_WOKE_HERE;
+        }
 
         mLock.lock();
-        injectedEntry = mAllocator.obtainKeyEntry(eventTime, deviceId, keyEvent->getSource(),
-                policyFlags, action, flags, keyCode, scanCode, keyEvent->getMetaState(),
+        injectedEntry = mAllocator.obtainKeyEntry(keyEvent->getEventTime(),
+                keyEvent->getDeviceId(), keyEvent->getSource(),
+                policyFlags, action, flags,
+                keyEvent->getKeyCode(), keyEvent->getScanCode(), keyEvent->getMetaState(),
                 keyEvent->getRepeatCount(), keyEvent->getDownTime());
         break;
     }
@@ -2999,12 +3017,14 @@ void InputDispatcher::doNotifyANRLockedInterruptible(
 void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
         CommandEntry* commandEntry) {
     KeyEntry* entry = commandEntry->keyEntry;
-    initializeKeyEvent(&mReusableKeyEvent, entry);
+
+    KeyEvent event;
+    initializeKeyEvent(&event, entry);
 
     mLock.unlock();
 
     bool consumed = mPolicy->interceptKeyBeforeDispatching(commandEntry->inputChannel,
-            & mReusableKeyEvent, entry->policyFlags);
+            &event, entry->policyFlags);
 
     mLock.lock();
 
@@ -3025,12 +3045,13 @@ void InputDispatcher::doDispatchCycleFinishedLockedInterruptible(
                 && dispatchEntry->hasForegroundTarget()
                 && dispatchEntry->eventEntry->type == EventEntry::TYPE_KEY) {
             KeyEntry* keyEntry = static_cast<KeyEntry*>(dispatchEntry->eventEntry);
-            initializeKeyEvent(&mReusableKeyEvent, keyEntry);
+            KeyEvent event;
+            initializeKeyEvent(&event, keyEntry);
 
             mLock.unlock();
 
             mPolicy->dispatchUnhandledKey(connection->inputChannel,
-                    & mReusableKeyEvent, keyEntry->policyFlags);
+                    &event, keyEntry->policyFlags);
 
             mLock.lock();
         }

libs/ui/InputReader.cpp

@@ -2007,7 +2007,7 @@ void TouchInputMapper::dumpCalibration(String8& dump) {
     }
 
     if (mCalibration.haveToolSizeIsSummed) {
-        dump.appendFormat(INDENT4 "touch.toolSize.isSummed: %d\n",
+        dump.appendFormat(INDENT4 "touch.toolSize.isSummed: %s\n",
                 toString(mCalibration.toolSizeIsSummed));
     }
 

libs/ui/tests/InputDispatcher_test.cpp

@@ -54,9 +54,7 @@ private:
         return 60;
     }
 
-    virtual void interceptKeyBeforeQueueing(nsecs_t when, int32_t deviceId,
-            int32_t action, int32_t& flags, int32_t keyCode, int32_t scanCode,
-            uint32_t& policyFlags) {
+    virtual void interceptKeyBeforeQueueing(const KeyEvent* keyEvent, uint32_t& policyFlags) {
     }
 
     virtual void interceptGenericBeforeQueueing(nsecs_t when, uint32_t& policyFlags) {