Support monitor input per display (1/2)
To support monitor input per display, monitor channels would
be stored by displayId, so a copy of input event will dispatch
to the same display if monitor channel exist.
If inputWindowHandle is null and displayId is not ADISPLAY_ID_NONE,
registerInputChannel will treat inputChannel as monitor for displayId.
Bug: b/115602714
Test: atest DisplayContentTests ActivityManagerMultiDisplayTests
Test: atest inputflinger_tests
Change-Id: I1822779cecf6da37b4cd4821149692e3a95add7a
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index 38104c4..2cad986 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -852,7 +852,8 @@
return true;
}
- addMonitoringTargetsLocked(inputTargets);
+ // Add monitor channels from event's or focused display.
+ addMonitoringTargetsLocked(inputTargets, getTargetDisplayId(entry));
// Dispatch the key.
dispatchEventLocked(currentTime, entry, inputTargets);
@@ -919,7 +920,8 @@
return true;
}
- addMonitoringTargetsLocked(inputTargets);
+ // Add monitor channels from event's or focused display.
+ addMonitoringTargetsLocked(inputTargets, getTargetDisplayId(entry));
// Dispatch the motion.
if (conflictingPointerActions) {
@@ -1665,17 +1667,29 @@
target.pointerIds = pointerIds;
}
-void InputDispatcher::addMonitoringTargetsLocked(Vector<InputTarget>& inputTargets) {
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- inputTargets.push();
+void InputDispatcher::addMonitoringTargetsLocked(Vector<InputTarget>& inputTargets,
+ int32_t displayId) {
+ std::unordered_map<int32_t, Vector<sp<InputChannel>>>::const_iterator it =
+ mMonitoringChannelsByDisplay.find(displayId);
- InputTarget& target = inputTargets.editTop();
- target.inputChannel = mMonitoringChannels[i];
- target.flags = InputTarget::FLAG_DISPATCH_AS_IS;
- target.xOffset = 0;
- target.yOffset = 0;
- target.pointerIds.clear();
- target.scaleFactor = 1.0f;
+ if (it != mMonitoringChannelsByDisplay.end()) {
+ const Vector<sp<InputChannel>>& monitoringChannels = it->second;
+ const size_t numChannels = monitoringChannels.size();
+ for (size_t i = 0; i < numChannels; i++) {
+ inputTargets.push();
+
+ InputTarget& target = inputTargets.editTop();
+ target.inputChannel = monitoringChannels[i];
+ target.flags = InputTarget::FLAG_DISPATCH_AS_IS;
+ target.xOffset = 0;
+ target.yOffset = 0;
+ target.pointerIds.clear();
+ target.scaleFactor = 1.0f;
+ }
+ } else {
+ // If there is no monitor channel registered or all monitor channel unregistered,
+ // the display can't detect the extra system gesture by a copy of input events.
+ ALOGW("There is no monitor channel found in display=%" PRId32, displayId);
}
}
@@ -2294,8 +2308,12 @@
void InputDispatcher::synthesizeCancelationEventsForMonitorsLocked(
const CancelationOptions& options) {
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- synthesizeCancelationEventsForInputChannelLocked(mMonitoringChannels[i], options);
+ for (auto& it : mMonitoringChannelsByDisplay) {
+ const Vector<sp<InputChannel>>& monitoringChannels = it.second;
+ const size_t numChannels = monitoringChannels.size();
+ for (size_t i = 0; i < numChannels; i++) {
+ synthesizeCancelationEventsForInputChannelLocked(monitoringChannels[i], options);
+ }
}
}
@@ -3486,12 +3504,16 @@
dump += INDENT "Displays: <none>\n";
}
- if (!mMonitoringChannels.isEmpty()) {
- dump += INDENT "MonitoringChannels:\n";
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- const sp<InputChannel>& channel = mMonitoringChannels[i];
- dump += StringPrintf(INDENT2 "%zu: '%s'\n", i, channel->getName().c_str());
- }
+ if (!mMonitoringChannelsByDisplay.empty()) {
+ for (auto& it : mMonitoringChannelsByDisplay) {
+ const Vector<sp<InputChannel>>& monitoringChannels = it.second;
+ dump += INDENT "MonitoringChannels in Display %d:\n";
+ const size_t numChannels = monitoringChannels.size();
+ for (size_t i = 0; i < numChannels; i++) {
+ const sp<InputChannel>& channel = monitoringChannels[i];
+ dump += StringPrintf(INDENT2 "%zu: '%s'\n", i, channel->getName().c_str());
+ }
+ }
} else {
dump += INDENT "MonitoringChannels: <none>\n";
}
@@ -3609,10 +3631,10 @@
}
status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChannel,
- const sp<InputWindowHandle>& inputWindowHandle, bool monitor) {
+ const sp<InputWindowHandle>& inputWindowHandle, int32_t displayId) {
#if DEBUG_REGISTRATION
- ALOGD("channel '%s' ~ registerInputChannel - monitor=%s", inputChannel->getName().c_str(),
- toString(monitor));
+ ALOGD("channel '%s' ~ registerInputChannel - displayId=%" PRId32,
+ inputChannel->getName().c_str(), displayId);
#endif
{ // acquire lock
@@ -3624,13 +3646,20 @@
return BAD_VALUE;
}
+ // If InputWindowHandle is null and displayId is not ADISPLAY_ID_NONE,
+ // treat inputChannel as monitor channel for displayId.
+ bool monitor = inputWindowHandle == nullptr && displayId != ADISPLAY_ID_NONE;
+
sp<Connection> connection = new Connection(inputChannel, inputWindowHandle, monitor);
int fd = inputChannel->getFd();
mConnectionsByFd.add(fd, connection);
+ // Store monitor channel by displayId.
if (monitor) {
- mMonitoringChannels.push(inputChannel);
+ Vector<sp<InputChannel>>& monitoringChannels =
+ mMonitoringChannelsByDisplay[displayId];
+ monitoringChannels.push(inputChannel);
}
mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, handleReceiveCallback, this);
@@ -3687,11 +3716,21 @@
}
void InputDispatcher::removeMonitorChannelLocked(const sp<InputChannel>& inputChannel) {
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- if (mMonitoringChannels[i] == inputChannel) {
- mMonitoringChannels.removeAt(i);
- break;
- }
+ for (auto it = mMonitoringChannelsByDisplay.begin();
+ it != mMonitoringChannelsByDisplay.end(); ) {
+ Vector<sp<InputChannel>>& monitoringChannels = it->second;
+ const size_t numChannels = monitoringChannels.size();
+ for (size_t i = 0; i < numChannels; i++) {
+ if (monitoringChannels[i] == inputChannel) {
+ monitoringChannels.removeAt(i);
+ break;
+ }
+ }
+ if (monitoringChannels.empty()) {
+ it = mMonitoringChannelsByDisplay.erase(it);
+ } else {
+ ++it;
+ }
}
}