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am 278b525d: Add system accelerators for BACK and HOME. 

* commit '278b525d25b852554015ec4f92862f9297b502fd':
  Add system accelerators for BACK and HOME.
This commit is contained in:
Michael Wright 2014-08-06 19:50:05 +00:00 committed by Android Git Automerger
parent 83142a12fb 278b525d25
commit 9f6c3a8e01
2 changed files with 56 additions and 2 deletions
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44
services/inputflinger/InputDispatcher.cpp
View File

@ -2366,9 +2366,36 @@ void InputDispatcher::notifyKey(const NotifyKeyArgs* args) {
policyFlags |= POLICY_FLAG_TRUSTED;
int32_t keyCode = args->keyCode;
if (metaState & AMETA_META_ON && args->action == AKEY_EVENT_ACTION_DOWN) {
int32_t newKeyCode = AKEYCODE_UNKNOWN;
if (keyCode == AKEYCODE_DEL) {
newKeyCode = AKEYCODE_BACK;
} else if (keyCode == AKEYCODE_ENTER) {
newKeyCode = AKEYCODE_HOME;
}
if (newKeyCode != AKEYCODE_UNKNOWN) {
AutoMutex _l(mLock);
struct KeyReplacement replacement = {keyCode, args->deviceId};
mReplacedKeys.add(replacement, newKeyCode);
keyCode = newKeyCode;
metaState &= ~AMETA_META_ON;
}
} else if (args->action == AKEY_EVENT_ACTION_UP) {
// In order to maintain a consistent stream of up and down events, check to see if the key
// going up is one we've replaced in a down event and haven't yet replaced in an up event,
// even if the modifier was released between the down and the up events.
AutoMutex _l(mLock);
struct KeyReplacement replacement = {keyCode, args->deviceId};
ssize_t index = mReplacedKeys.indexOfKey(replacement);
keyCode = mReplacedKeys.valueAt(index);
mReplacedKeys.removeItemsAt(index);
metaState &= ~AMETA_META_ON;
}
KeyEvent event;
event.initialize(args->deviceId, args->source, args->action,
flags, args->keyCode, args->scanCode, metaState, 0,
flags, keyCode, args->scanCode, metaState, 0,
args->downTime, args->eventTime);
mPolicy->interceptKeyBeforeQueueing(&event, /*byref*/ policyFlags);
@ -2391,7 +2418,7 @@ void InputDispatcher::notifyKey(const NotifyKeyArgs* args) {
int32_t repeatCount = 0;
KeyEntry* newEntry = new KeyEntry(args->eventTime,
args->deviceId, args->source, policyFlags,
args->action, flags, args->keyCode, args->scanCode,
args->action, flags, keyCode, args->scanCode,
metaState, repeatCount, args->downTime);
needWake = enqueueInboundEventLocked(newEntry);
@ -3050,6 +3077,7 @@ void InputDispatcher::resetAndDropEverythingLocked(const char* reason) {
mTouchStatesByDisplay.clear();
mLastHoverWindowHandle.clear();
mReplacedKeys.clear();
}
void InputDispatcher::logDispatchStateLocked() {
@ -3188,6 +3216,18 @@ void InputDispatcher::dumpDispatchStateLocked(String8& dump) {
dump.append(INDENT "InboundQueue: <empty>\n");
}
if (!mReplacedKeys.isEmpty()) {
dump.append(INDENT "ReplacedKeys:\n");
for (size_t i = 0; i < mReplacedKeys.size(); i++) {
const KeyReplacement& replacement = mReplacedKeys.keyAt(i);
int32_t newKeyCode = mReplacedKeys.valueAt(i);
dump.appendFormat(INDENT2 "%zu: originalKeyCode=%d, deviceId=%d, newKeyCode=%d\n",
i, replacement.keyCode, replacement.deviceId, newKeyCode);
}
} else {
dump.append(INDENT "ReplacedKeys: <empty>\n");
}
if (!mConnectionsByFd.isEmpty()) {
dump.append(INDENT "Connections:\n");
for (size_t i = 0; i < mConnectionsByFd.size(); i++) {

14
services/inputflinger/InputDispatcher.h
View File

@ -904,6 +904,20 @@ private:
void resetKeyRepeatLocked();
KeyEntry* synthesizeKeyRepeatLocked(nsecs_t currentTime);
// Key replacement tracking
struct KeyReplacement {
int32_t keyCode;
int32_t deviceId;
bool operator==(const KeyReplacement& rhs) const {
return keyCode == rhs.keyCode && deviceId == rhs.deviceId;
}
bool operator<(const KeyReplacement& rhs) const {
return keyCode != rhs.keyCode ? keyCode < rhs.keyCode : deviceId < rhs.deviceId;
}
};
// Maps the key code replaced, device id tuple to the key code it was replaced with
KeyedVector<KeyReplacement, int32_t> mReplacedKeys;
// Deferred command processing.
bool haveCommandsLocked() const;
bool runCommandsLockedInterruptible();