4535 lines
176 KiB
C++
4535 lines
176 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "InputDispatcher"
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#define ATRACE_TAG ATRACE_TAG_INPUT
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//#define LOG_NDEBUG 0
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// Log detailed debug messages about each inbound event notification to the dispatcher.
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#define DEBUG_INBOUND_EVENT_DETAILS 0
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// Log detailed debug messages about each outbound event processed by the dispatcher.
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#define DEBUG_OUTBOUND_EVENT_DETAILS 0
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// Log debug messages about the dispatch cycle.
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#define DEBUG_DISPATCH_CYCLE 0
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// Log debug messages about registrations.
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#define DEBUG_REGISTRATION 0
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// Log debug messages about input event injection.
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#define DEBUG_INJECTION 0
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// Log debug messages about input focus tracking.
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#define DEBUG_FOCUS 0
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// Log debug messages about the app switch latency optimization.
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#define DEBUG_APP_SWITCH 0
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// Log debug messages about hover events.
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#define DEBUG_HOVER 0
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#include "InputDispatcher.h"
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#include <utils/Trace.h>
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#include <cutils/log.h>
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#include <powermanager/PowerManager.h>
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#include <ui/Region.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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#include <time.h>
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#define INDENT " "
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#define INDENT2 " "
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#define INDENT3 " "
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#define INDENT4 " "
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namespace android {
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// Default input dispatching timeout if there is no focused application or paused window
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// from which to determine an appropriate dispatching timeout.
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const nsecs_t DEFAULT_INPUT_DISPATCHING_TIMEOUT = 5000 * 1000000LL; // 5 sec
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// Amount of time to allow for all pending events to be processed when an app switch
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// key is on the way. This is used to preempt input dispatch and drop input events
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// when an application takes too long to respond and the user has pressed an app switch key.
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const nsecs_t APP_SWITCH_TIMEOUT = 500 * 1000000LL; // 0.5sec
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// Amount of time to allow for an event to be dispatched (measured since its eventTime)
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// before considering it stale and dropping it.
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const nsecs_t STALE_EVENT_TIMEOUT = 10000 * 1000000LL; // 10sec
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// Amount of time to allow touch events to be streamed out to a connection before requiring
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// that the first event be finished. This value extends the ANR timeout by the specified
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// amount. For example, if streaming is allowed to get ahead by one second relative to the
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// queue of waiting unfinished events, then ANRs will similarly be delayed by one second.
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const nsecs_t STREAM_AHEAD_EVENT_TIMEOUT = 500 * 1000000LL; // 0.5sec
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// Log a warning when an event takes longer than this to process, even if an ANR does not occur.
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const nsecs_t SLOW_EVENT_PROCESSING_WARNING_TIMEOUT = 2000 * 1000000LL; // 2sec
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// Number of recent events to keep for debugging purposes.
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const size_t RECENT_QUEUE_MAX_SIZE = 10;
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static inline nsecs_t now() {
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return systemTime(SYSTEM_TIME_MONOTONIC);
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}
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static inline const char* toString(bool value) {
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return value ? "true" : "false";
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}
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static inline int32_t getMotionEventActionPointerIndex(int32_t action) {
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return (action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)
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>> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
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}
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static bool isValidKeyAction(int32_t action) {
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switch (action) {
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case AKEY_EVENT_ACTION_DOWN:
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case AKEY_EVENT_ACTION_UP:
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return true;
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default:
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return false;
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}
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}
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static bool validateKeyEvent(int32_t action) {
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if (! isValidKeyAction(action)) {
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ALOGE("Key event has invalid action code 0x%x", action);
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return false;
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}
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return true;
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}
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static bool isValidMotionAction(int32_t action, size_t pointerCount) {
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switch (action & AMOTION_EVENT_ACTION_MASK) {
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case AMOTION_EVENT_ACTION_DOWN:
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case AMOTION_EVENT_ACTION_UP:
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case AMOTION_EVENT_ACTION_CANCEL:
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case AMOTION_EVENT_ACTION_MOVE:
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case AMOTION_EVENT_ACTION_OUTSIDE:
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case AMOTION_EVENT_ACTION_HOVER_ENTER:
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case AMOTION_EVENT_ACTION_HOVER_MOVE:
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case AMOTION_EVENT_ACTION_HOVER_EXIT:
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case AMOTION_EVENT_ACTION_SCROLL:
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return true;
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case AMOTION_EVENT_ACTION_POINTER_DOWN:
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case AMOTION_EVENT_ACTION_POINTER_UP: {
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int32_t index = getMotionEventActionPointerIndex(action);
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return index >= 0 && size_t(index) < pointerCount;
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}
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default:
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return false;
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}
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}
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static bool validateMotionEvent(int32_t action, size_t pointerCount,
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const PointerProperties* pointerProperties) {
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if (! isValidMotionAction(action, pointerCount)) {
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ALOGE("Motion event has invalid action code 0x%x", action);
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return false;
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}
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if (pointerCount < 1 || pointerCount > MAX_POINTERS) {
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ALOGE("Motion event has invalid pointer count %d; value must be between 1 and %d.",
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pointerCount, MAX_POINTERS);
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return false;
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}
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BitSet32 pointerIdBits;
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for (size_t i = 0; i < pointerCount; i++) {
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int32_t id = pointerProperties[i].id;
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if (id < 0 || id > MAX_POINTER_ID) {
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ALOGE("Motion event has invalid pointer id %d; value must be between 0 and %d",
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id, MAX_POINTER_ID);
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return false;
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}
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if (pointerIdBits.hasBit(id)) {
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ALOGE("Motion event has duplicate pointer id %d", id);
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return false;
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}
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pointerIdBits.markBit(id);
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}
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return true;
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}
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static bool isMainDisplay(int32_t displayId) {
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return displayId == ADISPLAY_ID_DEFAULT || displayId == ADISPLAY_ID_NONE;
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}
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static void dumpRegion(String8& dump, const Region& region) {
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if (region.isEmpty()) {
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dump.append("<empty>");
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return;
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}
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bool first = true;
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Region::const_iterator cur = region.begin();
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Region::const_iterator const tail = region.end();
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while (cur != tail) {
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if (first) {
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first = false;
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} else {
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dump.append("|");
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}
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dump.appendFormat("[%d,%d][%d,%d]", cur->left, cur->top, cur->right, cur->bottom);
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cur++;
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}
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}
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// --- InputDispatcher ---
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InputDispatcher::InputDispatcher(const sp<InputDispatcherPolicyInterface>& policy) :
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mPolicy(policy),
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mPendingEvent(NULL), mAppSwitchSawKeyDown(false), mAppSwitchDueTime(LONG_LONG_MAX),
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mNextUnblockedEvent(NULL),
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mDispatchEnabled(false), mDispatchFrozen(false), mInputFilterEnabled(false),
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mInputTargetWaitCause(INPUT_TARGET_WAIT_CAUSE_NONE) {
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mLooper = new Looper(false);
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mKeyRepeatState.lastKeyEntry = NULL;
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policy->getDispatcherConfiguration(&mConfig);
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}
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InputDispatcher::~InputDispatcher() {
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{ // acquire lock
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AutoMutex _l(mLock);
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resetKeyRepeatLocked();
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releasePendingEventLocked();
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drainInboundQueueLocked();
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}
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while (mConnectionsByFd.size() != 0) {
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unregisterInputChannel(mConnectionsByFd.valueAt(0)->inputChannel);
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}
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}
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void InputDispatcher::dispatchOnce() {
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nsecs_t nextWakeupTime = LONG_LONG_MAX;
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{ // acquire lock
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AutoMutex _l(mLock);
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mDispatcherIsAliveCondition.broadcast();
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// Run a dispatch loop if there are no pending commands.
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// The dispatch loop might enqueue commands to run afterwards.
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if (!haveCommandsLocked()) {
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dispatchOnceInnerLocked(&nextWakeupTime);
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}
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// Run all pending commands if there are any.
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// If any commands were run then force the next poll to wake up immediately.
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if (runCommandsLockedInterruptible()) {
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nextWakeupTime = LONG_LONG_MIN;
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}
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} // release lock
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// Wait for callback or timeout or wake. (make sure we round up, not down)
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nsecs_t currentTime = now();
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int timeoutMillis = toMillisecondTimeoutDelay(currentTime, nextWakeupTime);
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mLooper->pollOnce(timeoutMillis);
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}
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void InputDispatcher::dispatchOnceInnerLocked(nsecs_t* nextWakeupTime) {
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nsecs_t currentTime = now();
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// Reset the key repeat timer whenever we disallow key events, even if the next event
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// is not a key. This is to ensure that we abort a key repeat if the device is just coming
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// out of sleep.
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if (!mPolicy->isKeyRepeatEnabled()) {
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resetKeyRepeatLocked();
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}
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// If dispatching is frozen, do not process timeouts or try to deliver any new events.
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if (mDispatchFrozen) {
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#if DEBUG_FOCUS
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ALOGD("Dispatch frozen. Waiting some more.");
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#endif
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return;
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}
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// Optimize latency of app switches.
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// Essentially we start a short timeout when an app switch key (HOME / ENDCALL) has
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// been pressed. When it expires, we preempt dispatch and drop all other pending events.
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bool isAppSwitchDue = mAppSwitchDueTime <= currentTime;
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if (mAppSwitchDueTime < *nextWakeupTime) {
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*nextWakeupTime = mAppSwitchDueTime;
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}
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// Ready to start a new event.
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// If we don't already have a pending event, go grab one.
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if (! mPendingEvent) {
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if (mInboundQueue.isEmpty()) {
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if (isAppSwitchDue) {
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// The inbound queue is empty so the app switch key we were waiting
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// for will never arrive. Stop waiting for it.
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resetPendingAppSwitchLocked(false);
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isAppSwitchDue = false;
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}
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// Synthesize a key repeat if appropriate.
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if (mKeyRepeatState.lastKeyEntry) {
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if (currentTime >= mKeyRepeatState.nextRepeatTime) {
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mPendingEvent = synthesizeKeyRepeatLocked(currentTime);
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} else {
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if (mKeyRepeatState.nextRepeatTime < *nextWakeupTime) {
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*nextWakeupTime = mKeyRepeatState.nextRepeatTime;
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}
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}
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}
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// Nothing to do if there is no pending event.
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if (!mPendingEvent) {
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return;
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}
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} else {
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// Inbound queue has at least one entry.
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mPendingEvent = mInboundQueue.dequeueAtHead();
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traceInboundQueueLengthLocked();
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}
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// Poke user activity for this event.
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if (mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER) {
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pokeUserActivityLocked(mPendingEvent);
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}
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// Get ready to dispatch the event.
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resetANRTimeoutsLocked();
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}
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// Now we have an event to dispatch.
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// All events are eventually dequeued and processed this way, even if we intend to drop them.
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ALOG_ASSERT(mPendingEvent != NULL);
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bool done = false;
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DropReason dropReason = DROP_REASON_NOT_DROPPED;
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if (!(mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER)) {
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dropReason = DROP_REASON_POLICY;
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} else if (!mDispatchEnabled) {
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dropReason = DROP_REASON_DISABLED;
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}
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if (mNextUnblockedEvent == mPendingEvent) {
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mNextUnblockedEvent = NULL;
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}
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switch (mPendingEvent->type) {
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case EventEntry::TYPE_CONFIGURATION_CHANGED: {
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ConfigurationChangedEntry* typedEntry =
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static_cast<ConfigurationChangedEntry*>(mPendingEvent);
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done = dispatchConfigurationChangedLocked(currentTime, typedEntry);
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dropReason = DROP_REASON_NOT_DROPPED; // configuration changes are never dropped
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break;
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}
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case EventEntry::TYPE_DEVICE_RESET: {
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DeviceResetEntry* typedEntry =
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static_cast<DeviceResetEntry*>(mPendingEvent);
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done = dispatchDeviceResetLocked(currentTime, typedEntry);
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dropReason = DROP_REASON_NOT_DROPPED; // device resets are never dropped
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break;
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}
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case EventEntry::TYPE_KEY: {
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KeyEntry* typedEntry = static_cast<KeyEntry*>(mPendingEvent);
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if (isAppSwitchDue) {
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if (isAppSwitchKeyEventLocked(typedEntry)) {
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resetPendingAppSwitchLocked(true);
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isAppSwitchDue = false;
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} else if (dropReason == DROP_REASON_NOT_DROPPED) {
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dropReason = DROP_REASON_APP_SWITCH;
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}
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}
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if (dropReason == DROP_REASON_NOT_DROPPED
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&& isStaleEventLocked(currentTime, typedEntry)) {
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dropReason = DROP_REASON_STALE;
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}
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if (dropReason == DROP_REASON_NOT_DROPPED && mNextUnblockedEvent) {
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dropReason = DROP_REASON_BLOCKED;
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}
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done = dispatchKeyLocked(currentTime, typedEntry, &dropReason, nextWakeupTime);
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break;
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}
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case EventEntry::TYPE_MOTION: {
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MotionEntry* typedEntry = static_cast<MotionEntry*>(mPendingEvent);
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if (dropReason == DROP_REASON_NOT_DROPPED && isAppSwitchDue) {
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dropReason = DROP_REASON_APP_SWITCH;
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}
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if (dropReason == DROP_REASON_NOT_DROPPED
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&& isStaleEventLocked(currentTime, typedEntry)) {
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dropReason = DROP_REASON_STALE;
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}
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if (dropReason == DROP_REASON_NOT_DROPPED && mNextUnblockedEvent) {
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dropReason = DROP_REASON_BLOCKED;
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}
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done = dispatchMotionLocked(currentTime, typedEntry,
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&dropReason, nextWakeupTime);
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break;
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}
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default:
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ALOG_ASSERT(false);
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break;
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}
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if (done) {
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if (dropReason != DROP_REASON_NOT_DROPPED) {
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dropInboundEventLocked(mPendingEvent, dropReason);
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}
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releasePendingEventLocked();
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*nextWakeupTime = LONG_LONG_MIN; // force next poll to wake up immediately
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}
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}
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bool InputDispatcher::enqueueInboundEventLocked(EventEntry* entry) {
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bool needWake = mInboundQueue.isEmpty();
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mInboundQueue.enqueueAtTail(entry);
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traceInboundQueueLengthLocked();
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switch (entry->type) {
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case EventEntry::TYPE_KEY: {
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// Optimize app switch latency.
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// If the application takes too long to catch up then we drop all events preceding
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// the app switch key.
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KeyEntry* keyEntry = static_cast<KeyEntry*>(entry);
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if (isAppSwitchKeyEventLocked(keyEntry)) {
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if (keyEntry->action == AKEY_EVENT_ACTION_DOWN) {
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mAppSwitchSawKeyDown = true;
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} else if (keyEntry->action == AKEY_EVENT_ACTION_UP) {
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if (mAppSwitchSawKeyDown) {
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#if DEBUG_APP_SWITCH
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ALOGD("App switch is pending!");
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#endif
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mAppSwitchDueTime = keyEntry->eventTime + APP_SWITCH_TIMEOUT;
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mAppSwitchSawKeyDown = false;
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needWake = true;
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}
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}
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}
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break;
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}
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case EventEntry::TYPE_MOTION: {
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// Optimize case where the current application is unresponsive and the user
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// decides to touch a window in a different application.
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// If the application takes too long to catch up then we drop all events preceding
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// the touch into the other window.
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MotionEntry* motionEntry = static_cast<MotionEntry*>(entry);
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if (motionEntry->action == AMOTION_EVENT_ACTION_DOWN
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&& (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER)
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&& mInputTargetWaitCause == INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY
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&& mInputTargetWaitApplicationHandle != NULL) {
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int32_t displayId = motionEntry->displayId;
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int32_t x = int32_t(motionEntry->pointerCoords[0].
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getAxisValue(AMOTION_EVENT_AXIS_X));
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int32_t y = int32_t(motionEntry->pointerCoords[0].
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getAxisValue(AMOTION_EVENT_AXIS_Y));
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sp<InputWindowHandle> touchedWindowHandle = findTouchedWindowAtLocked(displayId, x, y);
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if (touchedWindowHandle != NULL
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&& touchedWindowHandle->inputApplicationHandle
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!= mInputTargetWaitApplicationHandle) {
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// User touched a different application than the one we are waiting on.
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// Flag the event, and start pruning the input queue.
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mNextUnblockedEvent = motionEntry;
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needWake = true;
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}
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}
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break;
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}
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}
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return needWake;
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}
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void InputDispatcher::addRecentEventLocked(EventEntry* entry) {
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entry->refCount += 1;
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mRecentQueue.enqueueAtTail(entry);
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if (mRecentQueue.count() > RECENT_QUEUE_MAX_SIZE) {
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mRecentQueue.dequeueAtHead()->release();
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}
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}
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sp<InputWindowHandle> InputDispatcher::findTouchedWindowAtLocked(int32_t displayId,
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int32_t x, int32_t y) {
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// Traverse windows from front to back to find touched window.
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size_t numWindows = mWindowHandles.size();
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for (size_t i = 0; i < numWindows; i++) {
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sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
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const InputWindowInfo* windowInfo = windowHandle->getInfo();
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if (windowInfo->displayId == displayId) {
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int32_t flags = windowInfo->layoutParamsFlags;
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int32_t privateFlags = windowInfo->layoutParamsPrivateFlags;
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if (windowInfo->visible) {
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if (!(flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
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bool isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
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| InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
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if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
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// Found window.
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return windowHandle;
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}
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}
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}
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if (privateFlags & InputWindowInfo::PRIVATE_FLAG_SYSTEM_ERROR) {
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// Error window is on top but not visible, so touch is dropped.
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return NULL;
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}
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|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void InputDispatcher::dropInboundEventLocked(EventEntry* entry, DropReason dropReason) {
|
|
const char* reason;
|
|
switch (dropReason) {
|
|
case DROP_REASON_POLICY:
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("Dropped event because policy consumed it.");
|
|
#endif
|
|
reason = "inbound event was dropped because the policy consumed it";
|
|
break;
|
|
case DROP_REASON_DISABLED:
|
|
ALOGI("Dropped event because input dispatch is disabled.");
|
|
reason = "inbound event was dropped because input dispatch is disabled";
|
|
break;
|
|
case DROP_REASON_APP_SWITCH:
|
|
ALOGI("Dropped event because of pending overdue app switch.");
|
|
reason = "inbound event was dropped because of pending overdue app switch";
|
|
break;
|
|
case DROP_REASON_BLOCKED:
|
|
ALOGI("Dropped event because the current application is not responding and the user "
|
|
"has started interacting with a different application.");
|
|
reason = "inbound event was dropped because the current application is not responding "
|
|
"and the user has started interacting with a different application";
|
|
break;
|
|
case DROP_REASON_STALE:
|
|
ALOGI("Dropped event because it is stale.");
|
|
reason = "inbound event was dropped because it is stale";
|
|
break;
|
|
default:
|
|
ALOG_ASSERT(false);
|
|
return;
|
|
}
|
|
|
|
switch (entry->type) {
|
|
case EventEntry::TYPE_KEY: {
|
|
CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS, reason);
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
break;
|
|
}
|
|
case EventEntry::TYPE_MOTION: {
|
|
MotionEntry* motionEntry = static_cast<MotionEntry*>(entry);
|
|
if (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS, reason);
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
} else {
|
|
CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS, reason);
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::isAppSwitchKeyCode(int32_t keyCode) {
|
|
return keyCode == AKEYCODE_HOME
|
|
|| keyCode == AKEYCODE_ENDCALL
|
|
|| keyCode == AKEYCODE_APP_SWITCH;
|
|
}
|
|
|
|
bool InputDispatcher::isAppSwitchKeyEventLocked(KeyEntry* keyEntry) {
|
|
return ! (keyEntry->flags & AKEY_EVENT_FLAG_CANCELED)
|
|
&& isAppSwitchKeyCode(keyEntry->keyCode)
|
|
&& (keyEntry->policyFlags & POLICY_FLAG_TRUSTED)
|
|
&& (keyEntry->policyFlags & POLICY_FLAG_PASS_TO_USER);
|
|
}
|
|
|
|
bool InputDispatcher::isAppSwitchPendingLocked() {
|
|
return mAppSwitchDueTime != LONG_LONG_MAX;
|
|
}
|
|
|
|
void InputDispatcher::resetPendingAppSwitchLocked(bool handled) {
|
|
mAppSwitchDueTime = LONG_LONG_MAX;
|
|
|
|
#if DEBUG_APP_SWITCH
|
|
if (handled) {
|
|
ALOGD("App switch has arrived.");
|
|
} else {
|
|
ALOGD("App switch was abandoned.");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool InputDispatcher::isStaleEventLocked(nsecs_t currentTime, EventEntry* entry) {
|
|
return currentTime - entry->eventTime >= STALE_EVENT_TIMEOUT;
|
|
}
|
|
|
|
bool InputDispatcher::haveCommandsLocked() const {
|
|
return !mCommandQueue.isEmpty();
|
|
}
|
|
|
|
bool InputDispatcher::runCommandsLockedInterruptible() {
|
|
if (mCommandQueue.isEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
do {
|
|
CommandEntry* commandEntry = mCommandQueue.dequeueAtHead();
|
|
|
|
Command command = commandEntry->command;
|
|
(this->*command)(commandEntry); // commands are implicitly 'LockedInterruptible'
|
|
|
|
commandEntry->connection.clear();
|
|
delete commandEntry;
|
|
} while (! mCommandQueue.isEmpty());
|
|
return true;
|
|
}
|
|
|
|
InputDispatcher::CommandEntry* InputDispatcher::postCommandLocked(Command command) {
|
|
CommandEntry* commandEntry = new CommandEntry(command);
|
|
mCommandQueue.enqueueAtTail(commandEntry);
|
|
return commandEntry;
|
|
}
|
|
|
|
void InputDispatcher::drainInboundQueueLocked() {
|
|
while (! mInboundQueue.isEmpty()) {
|
|
EventEntry* entry = mInboundQueue.dequeueAtHead();
|
|
releaseInboundEventLocked(entry);
|
|
}
|
|
traceInboundQueueLengthLocked();
|
|
}
|
|
|
|
void InputDispatcher::releasePendingEventLocked() {
|
|
if (mPendingEvent) {
|
|
resetANRTimeoutsLocked();
|
|
releaseInboundEventLocked(mPendingEvent);
|
|
mPendingEvent = NULL;
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::releaseInboundEventLocked(EventEntry* entry) {
|
|
InjectionState* injectionState = entry->injectionState;
|
|
if (injectionState && injectionState->injectionResult == INPUT_EVENT_INJECTION_PENDING) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("Injected inbound event was dropped.");
|
|
#endif
|
|
setInjectionResultLocked(entry, INPUT_EVENT_INJECTION_FAILED);
|
|
}
|
|
if (entry == mNextUnblockedEvent) {
|
|
mNextUnblockedEvent = NULL;
|
|
}
|
|
addRecentEventLocked(entry);
|
|
entry->release();
|
|
}
|
|
|
|
void InputDispatcher::resetKeyRepeatLocked() {
|
|
if (mKeyRepeatState.lastKeyEntry) {
|
|
mKeyRepeatState.lastKeyEntry->release();
|
|
mKeyRepeatState.lastKeyEntry = NULL;
|
|
}
|
|
}
|
|
|
|
InputDispatcher::KeyEntry* InputDispatcher::synthesizeKeyRepeatLocked(nsecs_t currentTime) {
|
|
KeyEntry* entry = mKeyRepeatState.lastKeyEntry;
|
|
|
|
// Reuse the repeated key entry if it is otherwise unreferenced.
|
|
uint32_t policyFlags = (entry->policyFlags & POLICY_FLAG_RAW_MASK)
|
|
| POLICY_FLAG_PASS_TO_USER | POLICY_FLAG_TRUSTED;
|
|
if (entry->refCount == 1) {
|
|
entry->recycle();
|
|
entry->eventTime = currentTime;
|
|
entry->policyFlags = policyFlags;
|
|
entry->repeatCount += 1;
|
|
} else {
|
|
KeyEntry* newEntry = new KeyEntry(currentTime,
|
|
entry->deviceId, entry->source, policyFlags,
|
|
entry->action, entry->flags, entry->keyCode, entry->scanCode,
|
|
entry->metaState, entry->repeatCount + 1, entry->downTime);
|
|
|
|
mKeyRepeatState.lastKeyEntry = newEntry;
|
|
entry->release();
|
|
|
|
entry = newEntry;
|
|
}
|
|
entry->syntheticRepeat = true;
|
|
|
|
// Increment reference count since we keep a reference to the event in
|
|
// mKeyRepeatState.lastKeyEntry in addition to the one we return.
|
|
entry->refCount += 1;
|
|
|
|
mKeyRepeatState.nextRepeatTime = currentTime + mConfig.keyRepeatDelay;
|
|
return entry;
|
|
}
|
|
|
|
bool InputDispatcher::dispatchConfigurationChangedLocked(
|
|
nsecs_t currentTime, ConfigurationChangedEntry* entry) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("dispatchConfigurationChanged - eventTime=%lld", entry->eventTime);
|
|
#endif
|
|
|
|
// Reset key repeating in case a keyboard device was added or removed or something.
|
|
resetKeyRepeatLocked();
|
|
|
|
// Enqueue a command to run outside the lock to tell the policy that the configuration changed.
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doNotifyConfigurationChangedInterruptible);
|
|
commandEntry->eventTime = entry->eventTime;
|
|
return true;
|
|
}
|
|
|
|
bool InputDispatcher::dispatchDeviceResetLocked(
|
|
nsecs_t currentTime, DeviceResetEntry* entry) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("dispatchDeviceReset - eventTime=%lld, deviceId=%d", entry->eventTime, entry->deviceId);
|
|
#endif
|
|
|
|
CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS,
|
|
"device was reset");
|
|
options.deviceId = entry->deviceId;
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
return true;
|
|
}
|
|
|
|
bool InputDispatcher::dispatchKeyLocked(nsecs_t currentTime, KeyEntry* entry,
|
|
DropReason* dropReason, nsecs_t* nextWakeupTime) {
|
|
// Preprocessing.
|
|
if (! entry->dispatchInProgress) {
|
|
if (entry->repeatCount == 0
|
|
&& entry->action == AKEY_EVENT_ACTION_DOWN
|
|
&& (entry->policyFlags & POLICY_FLAG_TRUSTED)
|
|
&& (!(entry->policyFlags & POLICY_FLAG_DISABLE_KEY_REPEAT))) {
|
|
if (mKeyRepeatState.lastKeyEntry
|
|
&& mKeyRepeatState.lastKeyEntry->keyCode == entry->keyCode) {
|
|
// We have seen two identical key downs in a row which indicates that the device
|
|
// driver is automatically generating key repeats itself. We take note of the
|
|
// repeat here, but we disable our own next key repeat timer since it is clear that
|
|
// we will not need to synthesize key repeats ourselves.
|
|
entry->repeatCount = mKeyRepeatState.lastKeyEntry->repeatCount + 1;
|
|
resetKeyRepeatLocked();
|
|
mKeyRepeatState.nextRepeatTime = LONG_LONG_MAX; // don't generate repeats ourselves
|
|
} else {
|
|
// Not a repeat. Save key down state in case we do see a repeat later.
|
|
resetKeyRepeatLocked();
|
|
mKeyRepeatState.nextRepeatTime = entry->eventTime + mConfig.keyRepeatTimeout;
|
|
}
|
|
mKeyRepeatState.lastKeyEntry = entry;
|
|
entry->refCount += 1;
|
|
} else if (! entry->syntheticRepeat) {
|
|
resetKeyRepeatLocked();
|
|
}
|
|
|
|
if (entry->repeatCount == 1) {
|
|
entry->flags |= AKEY_EVENT_FLAG_LONG_PRESS;
|
|
} else {
|
|
entry->flags &= ~AKEY_EVENT_FLAG_LONG_PRESS;
|
|
}
|
|
|
|
entry->dispatchInProgress = true;
|
|
|
|
logOutboundKeyDetailsLocked("dispatchKey - ", entry);
|
|
}
|
|
|
|
// Handle case where the policy asked us to try again later last time.
|
|
if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER) {
|
|
if (currentTime < entry->interceptKeyWakeupTime) {
|
|
if (entry->interceptKeyWakeupTime < *nextWakeupTime) {
|
|
*nextWakeupTime = entry->interceptKeyWakeupTime;
|
|
}
|
|
return false; // wait until next wakeup
|
|
}
|
|
entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN;
|
|
entry->interceptKeyWakeupTime = 0;
|
|
}
|
|
|
|
// Give the policy a chance to intercept the key.
|
|
if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN) {
|
|
if (entry->policyFlags & POLICY_FLAG_PASS_TO_USER) {
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible);
|
|
if (mFocusedWindowHandle != NULL) {
|
|
commandEntry->inputWindowHandle = mFocusedWindowHandle;
|
|
}
|
|
commandEntry->keyEntry = entry;
|
|
entry->refCount += 1;
|
|
return false; // wait for the command to run
|
|
} else {
|
|
entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_CONTINUE;
|
|
}
|
|
} else if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_SKIP) {
|
|
if (*dropReason == DROP_REASON_NOT_DROPPED) {
|
|
*dropReason = DROP_REASON_POLICY;
|
|
}
|
|
}
|
|
|
|
// Clean up if dropping the event.
|
|
if (*dropReason != DROP_REASON_NOT_DROPPED) {
|
|
setInjectionResultLocked(entry, *dropReason == DROP_REASON_POLICY
|
|
? INPUT_EVENT_INJECTION_SUCCEEDED : INPUT_EVENT_INJECTION_FAILED);
|
|
return true;
|
|
}
|
|
|
|
// Identify targets.
|
|
Vector<InputTarget> inputTargets;
|
|
int32_t injectionResult = findFocusedWindowTargetsLocked(currentTime,
|
|
entry, inputTargets, nextWakeupTime);
|
|
if (injectionResult == INPUT_EVENT_INJECTION_PENDING) {
|
|
return false;
|
|
}
|
|
|
|
setInjectionResultLocked(entry, injectionResult);
|
|
if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) {
|
|
return true;
|
|
}
|
|
|
|
addMonitoringTargetsLocked(inputTargets);
|
|
|
|
// Dispatch the key.
|
|
dispatchEventLocked(currentTime, entry, inputTargets);
|
|
return true;
|
|
}
|
|
|
|
void InputDispatcher::logOutboundKeyDetailsLocked(const char* prefix, const KeyEntry* entry) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("%seventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, "
|
|
"action=0x%x, flags=0x%x, keyCode=0x%x, scanCode=0x%x, metaState=0x%x, "
|
|
"repeatCount=%d, downTime=%lld",
|
|
prefix,
|
|
entry->eventTime, entry->deviceId, entry->source, entry->policyFlags,
|
|
entry->action, entry->flags, entry->keyCode, entry->scanCode, entry->metaState,
|
|
entry->repeatCount, entry->downTime);
|
|
#endif
|
|
}
|
|
|
|
bool InputDispatcher::dispatchMotionLocked(
|
|
nsecs_t currentTime, MotionEntry* entry, DropReason* dropReason, nsecs_t* nextWakeupTime) {
|
|
// Preprocessing.
|
|
if (! entry->dispatchInProgress) {
|
|
entry->dispatchInProgress = true;
|
|
|
|
logOutboundMotionDetailsLocked("dispatchMotion - ", entry);
|
|
}
|
|
|
|
// Clean up if dropping the event.
|
|
if (*dropReason != DROP_REASON_NOT_DROPPED) {
|
|
setInjectionResultLocked(entry, *dropReason == DROP_REASON_POLICY
|
|
? INPUT_EVENT_INJECTION_SUCCEEDED : INPUT_EVENT_INJECTION_FAILED);
|
|
return true;
|
|
}
|
|
|
|
bool isPointerEvent = entry->source & AINPUT_SOURCE_CLASS_POINTER;
|
|
|
|
// Identify targets.
|
|
Vector<InputTarget> inputTargets;
|
|
|
|
bool conflictingPointerActions = false;
|
|
int32_t injectionResult;
|
|
if (isPointerEvent) {
|
|
// Pointer event. (eg. touchscreen)
|
|
injectionResult = findTouchedWindowTargetsLocked(currentTime,
|
|
entry, inputTargets, nextWakeupTime, &conflictingPointerActions);
|
|
} else {
|
|
// Non touch event. (eg. trackball)
|
|
injectionResult = findFocusedWindowTargetsLocked(currentTime,
|
|
entry, inputTargets, nextWakeupTime);
|
|
}
|
|
if (injectionResult == INPUT_EVENT_INJECTION_PENDING) {
|
|
return false;
|
|
}
|
|
|
|
setInjectionResultLocked(entry, injectionResult);
|
|
if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) {
|
|
return true;
|
|
}
|
|
|
|
// TODO: support sending secondary display events to input monitors
|
|
if (isMainDisplay(entry->displayId)) {
|
|
addMonitoringTargetsLocked(inputTargets);
|
|
}
|
|
|
|
// Dispatch the motion.
|
|
if (conflictingPointerActions) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
|
|
"conflicting pointer actions");
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
}
|
|
dispatchEventLocked(currentTime, entry, inputTargets);
|
|
return true;
|
|
}
|
|
|
|
|
|
void InputDispatcher::logOutboundMotionDetailsLocked(const char* prefix, const MotionEntry* entry) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("%seventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, "
|
|
"action=0x%x, flags=0x%x, "
|
|
"metaState=0x%x, buttonState=0x%x, "
|
|
"edgeFlags=0x%x, xPrecision=%f, yPrecision=%f, downTime=%lld",
|
|
prefix,
|
|
entry->eventTime, entry->deviceId, entry->source, entry->policyFlags,
|
|
entry->action, entry->flags,
|
|
entry->metaState, entry->buttonState,
|
|
entry->edgeFlags, entry->xPrecision, entry->yPrecision,
|
|
entry->downTime);
|
|
|
|
for (uint32_t i = 0; i < entry->pointerCount; i++) {
|
|
ALOGD(" Pointer %d: id=%d, toolType=%d, "
|
|
"x=%f, y=%f, pressure=%f, size=%f, "
|
|
"touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, "
|
|
"orientation=%f",
|
|
i, entry->pointerProperties[i].id,
|
|
entry->pointerProperties[i].toolType,
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
|
|
entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION));
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void InputDispatcher::dispatchEventLocked(nsecs_t currentTime,
|
|
EventEntry* eventEntry, const Vector<InputTarget>& inputTargets) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("dispatchEventToCurrentInputTargets");
|
|
#endif
|
|
|
|
ALOG_ASSERT(eventEntry->dispatchInProgress); // should already have been set to true
|
|
|
|
pokeUserActivityLocked(eventEntry);
|
|
|
|
for (size_t i = 0; i < inputTargets.size(); i++) {
|
|
const InputTarget& inputTarget = inputTargets.itemAt(i);
|
|
|
|
ssize_t connectionIndex = getConnectionIndexLocked(inputTarget.inputChannel);
|
|
if (connectionIndex >= 0) {
|
|
sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
|
|
prepareDispatchCycleLocked(currentTime, connection, eventEntry, &inputTarget);
|
|
} else {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Dropping event delivery to target with channel '%s' because it "
|
|
"is no longer registered with the input dispatcher.",
|
|
inputTarget.inputChannel->getName().string());
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
int32_t InputDispatcher::handleTargetsNotReadyLocked(nsecs_t currentTime,
|
|
const EventEntry* entry,
|
|
const sp<InputApplicationHandle>& applicationHandle,
|
|
const sp<InputWindowHandle>& windowHandle,
|
|
nsecs_t* nextWakeupTime, const char* reason) {
|
|
if (applicationHandle == NULL && windowHandle == NULL) {
|
|
if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Waiting for system to become ready for input. Reason: %s", reason);
|
|
#endif
|
|
mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY;
|
|
mInputTargetWaitStartTime = currentTime;
|
|
mInputTargetWaitTimeoutTime = LONG_LONG_MAX;
|
|
mInputTargetWaitTimeoutExpired = false;
|
|
mInputTargetWaitApplicationHandle.clear();
|
|
}
|
|
} else {
|
|
if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Waiting for application to become ready for input: %s. Reason: %s",
|
|
getApplicationWindowLabelLocked(applicationHandle, windowHandle).string(),
|
|
reason);
|
|
#endif
|
|
nsecs_t timeout;
|
|
if (windowHandle != NULL) {
|
|
timeout = windowHandle->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT);
|
|
} else if (applicationHandle != NULL) {
|
|
timeout = applicationHandle->getDispatchingTimeout(
|
|
DEFAULT_INPUT_DISPATCHING_TIMEOUT);
|
|
} else {
|
|
timeout = DEFAULT_INPUT_DISPATCHING_TIMEOUT;
|
|
}
|
|
|
|
mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY;
|
|
mInputTargetWaitStartTime = currentTime;
|
|
mInputTargetWaitTimeoutTime = currentTime + timeout;
|
|
mInputTargetWaitTimeoutExpired = false;
|
|
mInputTargetWaitApplicationHandle.clear();
|
|
|
|
if (windowHandle != NULL) {
|
|
mInputTargetWaitApplicationHandle = windowHandle->inputApplicationHandle;
|
|
}
|
|
if (mInputTargetWaitApplicationHandle == NULL && applicationHandle != NULL) {
|
|
mInputTargetWaitApplicationHandle = applicationHandle;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mInputTargetWaitTimeoutExpired) {
|
|
return INPUT_EVENT_INJECTION_TIMED_OUT;
|
|
}
|
|
|
|
if (currentTime >= mInputTargetWaitTimeoutTime) {
|
|
onANRLocked(currentTime, applicationHandle, windowHandle,
|
|
entry->eventTime, mInputTargetWaitStartTime, reason);
|
|
|
|
// Force poll loop to wake up immediately on next iteration once we get the
|
|
// ANR response back from the policy.
|
|
*nextWakeupTime = LONG_LONG_MIN;
|
|
return INPUT_EVENT_INJECTION_PENDING;
|
|
} else {
|
|
// Force poll loop to wake up when timeout is due.
|
|
if (mInputTargetWaitTimeoutTime < *nextWakeupTime) {
|
|
*nextWakeupTime = mInputTargetWaitTimeoutTime;
|
|
}
|
|
return INPUT_EVENT_INJECTION_PENDING;
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::resumeAfterTargetsNotReadyTimeoutLocked(nsecs_t newTimeout,
|
|
const sp<InputChannel>& inputChannel) {
|
|
if (newTimeout > 0) {
|
|
// Extend the timeout.
|
|
mInputTargetWaitTimeoutTime = now() + newTimeout;
|
|
} else {
|
|
// Give up.
|
|
mInputTargetWaitTimeoutExpired = true;
|
|
|
|
// Input state will not be realistic. Mark it out of sync.
|
|
if (inputChannel.get()) {
|
|
ssize_t connectionIndex = getConnectionIndexLocked(inputChannel);
|
|
if (connectionIndex >= 0) {
|
|
sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
|
|
sp<InputWindowHandle> windowHandle = connection->inputWindowHandle;
|
|
|
|
if (windowHandle != NULL) {
|
|
const InputWindowInfo* info = windowHandle->getInfo();
|
|
if (info) {
|
|
ssize_t stateIndex = mTouchStatesByDisplay.indexOfKey(info->displayId);
|
|
if (stateIndex >= 0) {
|
|
mTouchStatesByDisplay.editValueAt(stateIndex).removeWindow(
|
|
windowHandle);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (connection->status == Connection::STATUS_NORMAL) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS,
|
|
"application not responding");
|
|
synthesizeCancelationEventsForConnectionLocked(connection, options);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nsecs_t InputDispatcher::getTimeSpentWaitingForApplicationLocked(
|
|
nsecs_t currentTime) {
|
|
if (mInputTargetWaitCause == INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY) {
|
|
return currentTime - mInputTargetWaitStartTime;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void InputDispatcher::resetANRTimeoutsLocked() {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Resetting ANR timeouts.");
|
|
#endif
|
|
|
|
// Reset input target wait timeout.
|
|
mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_NONE;
|
|
mInputTargetWaitApplicationHandle.clear();
|
|
}
|
|
|
|
int32_t InputDispatcher::findFocusedWindowTargetsLocked(nsecs_t currentTime,
|
|
const EventEntry* entry, Vector<InputTarget>& inputTargets, nsecs_t* nextWakeupTime) {
|
|
int32_t injectionResult;
|
|
|
|
// If there is no currently focused window and no focused application
|
|
// then drop the event.
|
|
if (mFocusedWindowHandle == NULL) {
|
|
if (mFocusedApplicationHandle != NULL) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
mFocusedApplicationHandle, NULL, nextWakeupTime,
|
|
"Waiting because no window has focus but there is a "
|
|
"focused application that may eventually add a window "
|
|
"when it finishes starting up.");
|
|
goto Unresponsive;
|
|
}
|
|
|
|
ALOGI("Dropping event because there is no focused window or focused application.");
|
|
injectionResult = INPUT_EVENT_INJECTION_FAILED;
|
|
goto Failed;
|
|
}
|
|
|
|
// Check permissions.
|
|
if (! checkInjectionPermission(mFocusedWindowHandle, entry->injectionState)) {
|
|
injectionResult = INPUT_EVENT_INJECTION_PERMISSION_DENIED;
|
|
goto Failed;
|
|
}
|
|
|
|
// If the currently focused window is paused then keep waiting.
|
|
if (mFocusedWindowHandle->getInfo()->paused) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime,
|
|
"Waiting because the focused window is paused.");
|
|
goto Unresponsive;
|
|
}
|
|
|
|
// If the currently focused window is still working on previous events then keep waiting.
|
|
if (!isWindowReadyForMoreInputLocked(currentTime, mFocusedWindowHandle, entry)) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime,
|
|
"Waiting because the focused window has not finished "
|
|
"processing the input events that were previously delivered to it.");
|
|
goto Unresponsive;
|
|
}
|
|
|
|
// Success! Output targets.
|
|
injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED;
|
|
addWindowTargetLocked(mFocusedWindowHandle,
|
|
InputTarget::FLAG_FOREGROUND | InputTarget::FLAG_DISPATCH_AS_IS, BitSet32(0),
|
|
inputTargets);
|
|
|
|
// Done.
|
|
Failed:
|
|
Unresponsive:
|
|
nsecs_t timeSpentWaitingForApplication = getTimeSpentWaitingForApplicationLocked(currentTime);
|
|
updateDispatchStatisticsLocked(currentTime, entry,
|
|
injectionResult, timeSpentWaitingForApplication);
|
|
#if DEBUG_FOCUS
|
|
ALOGD("findFocusedWindow finished: injectionResult=%d, "
|
|
"timeSpentWaitingForApplication=%0.1fms",
|
|
injectionResult, timeSpentWaitingForApplication / 1000000.0);
|
|
#endif
|
|
return injectionResult;
|
|
}
|
|
|
|
int32_t InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime,
|
|
const MotionEntry* entry, Vector<InputTarget>& inputTargets, nsecs_t* nextWakeupTime,
|
|
bool* outConflictingPointerActions) {
|
|
enum InjectionPermission {
|
|
INJECTION_PERMISSION_UNKNOWN,
|
|
INJECTION_PERMISSION_GRANTED,
|
|
INJECTION_PERMISSION_DENIED
|
|
};
|
|
|
|
nsecs_t startTime = now();
|
|
|
|
// For security reasons, we defer updating the touch state until we are sure that
|
|
// event injection will be allowed.
|
|
//
|
|
// FIXME In the original code, screenWasOff could never be set to true.
|
|
// The reason is that the POLICY_FLAG_WOKE_HERE
|
|
// and POLICY_FLAG_BRIGHT_HERE flags were set only when preprocessing raw
|
|
// EV_KEY, EV_REL and EV_ABS events. As it happens, the touch event was
|
|
// actually enqueued using the policyFlags that appeared in the final EV_SYN
|
|
// events upon which no preprocessing took place. So policyFlags was always 0.
|
|
// In the new native input dispatcher we're a bit more careful about event
|
|
// preprocessing so the touches we receive can actually have non-zero policyFlags.
|
|
// Unfortunately we obtain undesirable behavior.
|
|
//
|
|
// Here's what happens:
|
|
//
|
|
// When the device dims in anticipation of going to sleep, touches
|
|
// in windows which have FLAG_TOUCHABLE_WHEN_WAKING cause
|
|
// the device to brighten and reset the user activity timer.
|
|
// Touches on other windows (such as the launcher window)
|
|
// are dropped. Then after a moment, the device goes to sleep. Oops.
|
|
//
|
|
// Also notice how screenWasOff was being initialized using POLICY_FLAG_BRIGHT_HERE
|
|
// instead of POLICY_FLAG_WOKE_HERE...
|
|
//
|
|
bool screenWasOff = false; // original policy: policyFlags & POLICY_FLAG_BRIGHT_HERE;
|
|
|
|
int32_t displayId = entry->displayId;
|
|
int32_t action = entry->action;
|
|
int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK;
|
|
|
|
// Update the touch state as needed based on the properties of the touch event.
|
|
int32_t injectionResult = INPUT_EVENT_INJECTION_PENDING;
|
|
InjectionPermission injectionPermission = INJECTION_PERMISSION_UNKNOWN;
|
|
sp<InputWindowHandle> newHoverWindowHandle;
|
|
|
|
// Copy current touch state into mTempTouchState.
|
|
// This state is always reset at the end of this function, so if we don't find state
|
|
// for the specified display then our initial state will be empty.
|
|
const TouchState* oldState = NULL;
|
|
ssize_t oldStateIndex = mTouchStatesByDisplay.indexOfKey(displayId);
|
|
if (oldStateIndex >= 0) {
|
|
oldState = &mTouchStatesByDisplay.valueAt(oldStateIndex);
|
|
mTempTouchState.copyFrom(*oldState);
|
|
}
|
|
|
|
bool isSplit = mTempTouchState.split;
|
|
bool switchedDevice = mTempTouchState.deviceId >= 0 && mTempTouchState.displayId >= 0
|
|
&& (mTempTouchState.deviceId != entry->deviceId
|
|
|| mTempTouchState.source != entry->source
|
|
|| mTempTouchState.displayId != displayId);
|
|
bool isHoverAction = (maskedAction == AMOTION_EVENT_ACTION_HOVER_MOVE
|
|
|| maskedAction == AMOTION_EVENT_ACTION_HOVER_ENTER
|
|
|| maskedAction == AMOTION_EVENT_ACTION_HOVER_EXIT);
|
|
bool newGesture = (maskedAction == AMOTION_EVENT_ACTION_DOWN
|
|
|| maskedAction == AMOTION_EVENT_ACTION_SCROLL
|
|
|| isHoverAction);
|
|
bool wrongDevice = false;
|
|
if (newGesture) {
|
|
bool down = maskedAction == AMOTION_EVENT_ACTION_DOWN;
|
|
if (switchedDevice && mTempTouchState.down && !down) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Dropping event because a pointer for a different device is already down.");
|
|
#endif
|
|
injectionResult = INPUT_EVENT_INJECTION_FAILED;
|
|
switchedDevice = false;
|
|
wrongDevice = true;
|
|
goto Failed;
|
|
}
|
|
mTempTouchState.reset();
|
|
mTempTouchState.down = down;
|
|
mTempTouchState.deviceId = entry->deviceId;
|
|
mTempTouchState.source = entry->source;
|
|
mTempTouchState.displayId = displayId;
|
|
isSplit = false;
|
|
}
|
|
|
|
if (newGesture || (isSplit && maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN)) {
|
|
/* Case 1: New splittable pointer going down, or need target for hover or scroll. */
|
|
|
|
int32_t pointerIndex = getMotionEventActionPointerIndex(action);
|
|
int32_t x = int32_t(entry->pointerCoords[pointerIndex].
|
|
getAxisValue(AMOTION_EVENT_AXIS_X));
|
|
int32_t y = int32_t(entry->pointerCoords[pointerIndex].
|
|
getAxisValue(AMOTION_EVENT_AXIS_Y));
|
|
sp<InputWindowHandle> newTouchedWindowHandle;
|
|
sp<InputWindowHandle> topErrorWindowHandle;
|
|
bool isTouchModal = false;
|
|
|
|
// Traverse windows from front to back to find touched window and outside targets.
|
|
size_t numWindows = mWindowHandles.size();
|
|
for (size_t i = 0; i < numWindows; i++) {
|
|
sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
|
|
const InputWindowInfo* windowInfo = windowHandle->getInfo();
|
|
if (windowInfo->displayId != displayId) {
|
|
continue; // wrong display
|
|
}
|
|
|
|
int32_t privateFlags = windowInfo->layoutParamsPrivateFlags;
|
|
if (privateFlags & InputWindowInfo::PRIVATE_FLAG_SYSTEM_ERROR) {
|
|
if (topErrorWindowHandle == NULL) {
|
|
topErrorWindowHandle = windowHandle;
|
|
}
|
|
}
|
|
|
|
int32_t flags = windowInfo->layoutParamsFlags;
|
|
if (windowInfo->visible) {
|
|
if (! (flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
|
|
isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
|
|
| InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
|
|
if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
|
|
if (! screenWasOff
|
|
|| (flags & InputWindowInfo::FLAG_TOUCHABLE_WHEN_WAKING)) {
|
|
newTouchedWindowHandle = windowHandle;
|
|
}
|
|
break; // found touched window, exit window loop
|
|
}
|
|
}
|
|
|
|
if (maskedAction == AMOTION_EVENT_ACTION_DOWN
|
|
&& (flags & InputWindowInfo::FLAG_WATCH_OUTSIDE_TOUCH)) {
|
|
int32_t outsideTargetFlags = InputTarget::FLAG_DISPATCH_AS_OUTSIDE;
|
|
if (isWindowObscuredAtPointLocked(windowHandle, x, y)) {
|
|
outsideTargetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
|
|
}
|
|
|
|
mTempTouchState.addOrUpdateWindow(
|
|
windowHandle, outsideTargetFlags, BitSet32(0));
|
|
}
|
|
}
|
|
}
|
|
|
|
// If there is an error window but it is not taking focus (typically because
|
|
// it is invisible) then wait for it. Any other focused window may in
|
|
// fact be in ANR state.
|
|
if (topErrorWindowHandle != NULL && newTouchedWindowHandle != topErrorWindowHandle) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
NULL, NULL, nextWakeupTime,
|
|
"Waiting because a system error window is about to be displayed.");
|
|
injectionPermission = INJECTION_PERMISSION_UNKNOWN;
|
|
goto Unresponsive;
|
|
}
|
|
|
|
// Figure out whether splitting will be allowed for this window.
|
|
if (newTouchedWindowHandle != NULL
|
|
&& newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
|
|
// New window supports splitting.
|
|
isSplit = true;
|
|
} else if (isSplit) {
|
|
// New window does not support splitting but we have already split events.
|
|
// Ignore the new window.
|
|
newTouchedWindowHandle = NULL;
|
|
}
|
|
|
|
// Handle the case where we did not find a window.
|
|
if (newTouchedWindowHandle == NULL) {
|
|
// Try to assign the pointer to the first foreground window we find, if there is one.
|
|
newTouchedWindowHandle = mTempTouchState.getFirstForegroundWindowHandle();
|
|
if (newTouchedWindowHandle == NULL) {
|
|
ALOGI("Dropping event because there is no touchable window at (%d, %d).", x, y);
|
|
injectionResult = INPUT_EVENT_INJECTION_FAILED;
|
|
goto Failed;
|
|
}
|
|
}
|
|
|
|
// Set target flags.
|
|
int32_t targetFlags = InputTarget::FLAG_FOREGROUND | InputTarget::FLAG_DISPATCH_AS_IS;
|
|
if (isSplit) {
|
|
targetFlags |= InputTarget::FLAG_SPLIT;
|
|
}
|
|
if (isWindowObscuredAtPointLocked(newTouchedWindowHandle, x, y)) {
|
|
targetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
|
|
}
|
|
|
|
// Update hover state.
|
|
if (isHoverAction) {
|
|
newHoverWindowHandle = newTouchedWindowHandle;
|
|
} else if (maskedAction == AMOTION_EVENT_ACTION_SCROLL) {
|
|
newHoverWindowHandle = mLastHoverWindowHandle;
|
|
}
|
|
|
|
// Update the temporary touch state.
|
|
BitSet32 pointerIds;
|
|
if (isSplit) {
|
|
uint32_t pointerId = entry->pointerProperties[pointerIndex].id;
|
|
pointerIds.markBit(pointerId);
|
|
}
|
|
mTempTouchState.addOrUpdateWindow(newTouchedWindowHandle, targetFlags, pointerIds);
|
|
} else {
|
|
/* Case 2: Pointer move, up, cancel or non-splittable pointer down. */
|
|
|
|
// If the pointer is not currently down, then ignore the event.
|
|
if (! mTempTouchState.down) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Dropping event because the pointer is not down or we previously "
|
|
"dropped the pointer down event.");
|
|
#endif
|
|
injectionResult = INPUT_EVENT_INJECTION_FAILED;
|
|
goto Failed;
|
|
}
|
|
|
|
// Check whether touches should slip outside of the current foreground window.
|
|
if (maskedAction == AMOTION_EVENT_ACTION_MOVE
|
|
&& entry->pointerCount == 1
|
|
&& mTempTouchState.isSlippery()) {
|
|
int32_t x = int32_t(entry->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X));
|
|
int32_t y = int32_t(entry->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y));
|
|
|
|
sp<InputWindowHandle> oldTouchedWindowHandle =
|
|
mTempTouchState.getFirstForegroundWindowHandle();
|
|
sp<InputWindowHandle> newTouchedWindowHandle =
|
|
findTouchedWindowAtLocked(displayId, x, y);
|
|
if (oldTouchedWindowHandle != newTouchedWindowHandle
|
|
&& newTouchedWindowHandle != NULL) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Touch is slipping out of window %s into window %s.",
|
|
oldTouchedWindowHandle->getName().string(),
|
|
newTouchedWindowHandle->getName().string());
|
|
#endif
|
|
// Make a slippery exit from the old window.
|
|
mTempTouchState.addOrUpdateWindow(oldTouchedWindowHandle,
|
|
InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT, BitSet32(0));
|
|
|
|
// Make a slippery entrance into the new window.
|
|
if (newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
|
|
isSplit = true;
|
|
}
|
|
|
|
int32_t targetFlags = InputTarget::FLAG_FOREGROUND
|
|
| InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER;
|
|
if (isSplit) {
|
|
targetFlags |= InputTarget::FLAG_SPLIT;
|
|
}
|
|
if (isWindowObscuredAtPointLocked(newTouchedWindowHandle, x, y)) {
|
|
targetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
|
|
}
|
|
|
|
BitSet32 pointerIds;
|
|
if (isSplit) {
|
|
pointerIds.markBit(entry->pointerProperties[0].id);
|
|
}
|
|
mTempTouchState.addOrUpdateWindow(newTouchedWindowHandle, targetFlags, pointerIds);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (newHoverWindowHandle != mLastHoverWindowHandle) {
|
|
// Let the previous window know that the hover sequence is over.
|
|
if (mLastHoverWindowHandle != NULL) {
|
|
#if DEBUG_HOVER
|
|
ALOGD("Sending hover exit event to window %s.",
|
|
mLastHoverWindowHandle->getName().string());
|
|
#endif
|
|
mTempTouchState.addOrUpdateWindow(mLastHoverWindowHandle,
|
|
InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT, BitSet32(0));
|
|
}
|
|
|
|
// Let the new window know that the hover sequence is starting.
|
|
if (newHoverWindowHandle != NULL) {
|
|
#if DEBUG_HOVER
|
|
ALOGD("Sending hover enter event to window %s.",
|
|
newHoverWindowHandle->getName().string());
|
|
#endif
|
|
mTempTouchState.addOrUpdateWindow(newHoverWindowHandle,
|
|
InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER, BitSet32(0));
|
|
}
|
|
}
|
|
|
|
// Check permission to inject into all touched foreground windows and ensure there
|
|
// is at least one touched foreground window.
|
|
{
|
|
bool haveForegroundWindow = false;
|
|
for (size_t i = 0; i < mTempTouchState.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = mTempTouchState.windows[i];
|
|
if (touchedWindow.targetFlags & InputTarget::FLAG_FOREGROUND) {
|
|
haveForegroundWindow = true;
|
|
if (! checkInjectionPermission(touchedWindow.windowHandle,
|
|
entry->injectionState)) {
|
|
injectionResult = INPUT_EVENT_INJECTION_PERMISSION_DENIED;
|
|
injectionPermission = INJECTION_PERMISSION_DENIED;
|
|
goto Failed;
|
|
}
|
|
}
|
|
}
|
|
if (! haveForegroundWindow) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Dropping event because there is no touched foreground window to receive it.");
|
|
#endif
|
|
injectionResult = INPUT_EVENT_INJECTION_FAILED;
|
|
goto Failed;
|
|
}
|
|
|
|
// Permission granted to injection into all touched foreground windows.
|
|
injectionPermission = INJECTION_PERMISSION_GRANTED;
|
|
}
|
|
|
|
// Check whether windows listening for outside touches are owned by the same UID. If it is
|
|
// set the policy flag that we will not reveal coordinate information to this window.
|
|
if (maskedAction == AMOTION_EVENT_ACTION_DOWN) {
|
|
sp<InputWindowHandle> foregroundWindowHandle =
|
|
mTempTouchState.getFirstForegroundWindowHandle();
|
|
const int32_t foregroundWindowUid = foregroundWindowHandle->getInfo()->ownerUid;
|
|
for (size_t i = 0; i < mTempTouchState.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = mTempTouchState.windows[i];
|
|
if (touchedWindow.targetFlags & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) {
|
|
sp<InputWindowHandle> inputWindowHandle = touchedWindow.windowHandle;
|
|
if (inputWindowHandle->getInfo()->ownerUid != foregroundWindowUid) {
|
|
mTempTouchState.addOrUpdateWindow(inputWindowHandle,
|
|
InputTarget::FLAG_ZERO_COORDS, BitSet32(0));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ensure all touched foreground windows are ready for new input.
|
|
for (size_t i = 0; i < mTempTouchState.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = mTempTouchState.windows[i];
|
|
if (touchedWindow.targetFlags & InputTarget::FLAG_FOREGROUND) {
|
|
// If the touched window is paused then keep waiting.
|
|
if (touchedWindow.windowHandle->getInfo()->paused) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
NULL, touchedWindow.windowHandle, nextWakeupTime,
|
|
"Waiting because the touched window is paused.");
|
|
goto Unresponsive;
|
|
}
|
|
|
|
// If the touched window is still working on previous events then keep waiting.
|
|
if (!isWindowReadyForMoreInputLocked(currentTime, touchedWindow.windowHandle, entry)) {
|
|
injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
|
|
NULL, touchedWindow.windowHandle, nextWakeupTime,
|
|
"Waiting because the touched window has not finished "
|
|
"processing the input events that were previously delivered to it.");
|
|
goto Unresponsive;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If this is the first pointer going down and the touched window has a wallpaper
|
|
// then also add the touched wallpaper windows so they are locked in for the duration
|
|
// of the touch gesture.
|
|
// We do not collect wallpapers during HOVER_MOVE or SCROLL because the wallpaper
|
|
// engine only supports touch events. We would need to add a mechanism similar
|
|
// to View.onGenericMotionEvent to enable wallpapers to handle these events.
|
|
if (maskedAction == AMOTION_EVENT_ACTION_DOWN) {
|
|
sp<InputWindowHandle> foregroundWindowHandle =
|
|
mTempTouchState.getFirstForegroundWindowHandle();
|
|
if (foregroundWindowHandle->getInfo()->hasWallpaper) {
|
|
for (size_t i = 0; i < mWindowHandles.size(); i++) {
|
|
sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
|
|
const InputWindowInfo* info = windowHandle->getInfo();
|
|
if (info->displayId == displayId
|
|
&& windowHandle->getInfo()->layoutParamsType
|
|
== InputWindowInfo::TYPE_WALLPAPER) {
|
|
mTempTouchState.addOrUpdateWindow(windowHandle,
|
|
InputTarget::FLAG_WINDOW_IS_OBSCURED
|
|
| InputTarget::FLAG_DISPATCH_AS_IS,
|
|
BitSet32(0));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Success! Output targets.
|
|
injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED;
|
|
|
|
for (size_t i = 0; i < mTempTouchState.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = mTempTouchState.windows.itemAt(i);
|
|
addWindowTargetLocked(touchedWindow.windowHandle, touchedWindow.targetFlags,
|
|
touchedWindow.pointerIds, inputTargets);
|
|
}
|
|
|
|
// Drop the outside or hover touch windows since we will not care about them
|
|
// in the next iteration.
|
|
mTempTouchState.filterNonAsIsTouchWindows();
|
|
|
|
Failed:
|
|
// Check injection permission once and for all.
|
|
if (injectionPermission == INJECTION_PERMISSION_UNKNOWN) {
|
|
if (checkInjectionPermission(NULL, entry->injectionState)) {
|
|
injectionPermission = INJECTION_PERMISSION_GRANTED;
|
|
} else {
|
|
injectionPermission = INJECTION_PERMISSION_DENIED;
|
|
}
|
|
}
|
|
|
|
// Update final pieces of touch state if the injector had permission.
|
|
if (injectionPermission == INJECTION_PERMISSION_GRANTED) {
|
|
if (!wrongDevice) {
|
|
if (switchedDevice) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Conflicting pointer actions: Switched to a different device.");
|
|
#endif
|
|
*outConflictingPointerActions = true;
|
|
}
|
|
|
|
if (isHoverAction) {
|
|
// Started hovering, therefore no longer down.
|
|
if (oldState && oldState->down) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Conflicting pointer actions: Hover received while pointer was down.");
|
|
#endif
|
|
*outConflictingPointerActions = true;
|
|
}
|
|
mTempTouchState.reset();
|
|
if (maskedAction == AMOTION_EVENT_ACTION_HOVER_ENTER
|
|
|| maskedAction == AMOTION_EVENT_ACTION_HOVER_MOVE) {
|
|
mTempTouchState.deviceId = entry->deviceId;
|
|
mTempTouchState.source = entry->source;
|
|
mTempTouchState.displayId = displayId;
|
|
}
|
|
} else if (maskedAction == AMOTION_EVENT_ACTION_UP
|
|
|| maskedAction == AMOTION_EVENT_ACTION_CANCEL) {
|
|
// All pointers up or canceled.
|
|
mTempTouchState.reset();
|
|
} else if (maskedAction == AMOTION_EVENT_ACTION_DOWN) {
|
|
// First pointer went down.
|
|
if (oldState && oldState->down) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Conflicting pointer actions: Down received while already down.");
|
|
#endif
|
|
*outConflictingPointerActions = true;
|
|
}
|
|
} else if (maskedAction == AMOTION_EVENT_ACTION_POINTER_UP) {
|
|
// One pointer went up.
|
|
if (isSplit) {
|
|
int32_t pointerIndex = getMotionEventActionPointerIndex(action);
|
|
uint32_t pointerId = entry->pointerProperties[pointerIndex].id;
|
|
|
|
for (size_t i = 0; i < mTempTouchState.windows.size(); ) {
|
|
TouchedWindow& touchedWindow = mTempTouchState.windows.editItemAt(i);
|
|
if (touchedWindow.targetFlags & InputTarget::FLAG_SPLIT) {
|
|
touchedWindow.pointerIds.clearBit(pointerId);
|
|
if (touchedWindow.pointerIds.isEmpty()) {
|
|
mTempTouchState.windows.removeAt(i);
|
|
continue;
|
|
}
|
|
}
|
|
i += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Save changes unless the action was scroll in which case the temporary touch
|
|
// state was only valid for this one action.
|
|
if (maskedAction != AMOTION_EVENT_ACTION_SCROLL) {
|
|
if (mTempTouchState.displayId >= 0) {
|
|
if (oldStateIndex >= 0) {
|
|
mTouchStatesByDisplay.editValueAt(oldStateIndex).copyFrom(mTempTouchState);
|
|
} else {
|
|
mTouchStatesByDisplay.add(displayId, mTempTouchState);
|
|
}
|
|
} else if (oldStateIndex >= 0) {
|
|
mTouchStatesByDisplay.removeItemsAt(oldStateIndex);
|
|
}
|
|
}
|
|
|
|
// Update hover state.
|
|
mLastHoverWindowHandle = newHoverWindowHandle;
|
|
}
|
|
} else {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Not updating touch focus because injection was denied.");
|
|
#endif
|
|
}
|
|
|
|
Unresponsive:
|
|
// Reset temporary touch state to ensure we release unnecessary references to input channels.
|
|
mTempTouchState.reset();
|
|
|
|
nsecs_t timeSpentWaitingForApplication = getTimeSpentWaitingForApplicationLocked(currentTime);
|
|
updateDispatchStatisticsLocked(currentTime, entry,
|
|
injectionResult, timeSpentWaitingForApplication);
|
|
#if DEBUG_FOCUS
|
|
ALOGD("findTouchedWindow finished: injectionResult=%d, injectionPermission=%d, "
|
|
"timeSpentWaitingForApplication=%0.1fms",
|
|
injectionResult, injectionPermission, timeSpentWaitingForApplication / 1000000.0);
|
|
#endif
|
|
return injectionResult;
|
|
}
|
|
|
|
void InputDispatcher::addWindowTargetLocked(const sp<InputWindowHandle>& windowHandle,
|
|
int32_t targetFlags, BitSet32 pointerIds, Vector<InputTarget>& inputTargets) {
|
|
inputTargets.push();
|
|
|
|
const InputWindowInfo* windowInfo = windowHandle->getInfo();
|
|
InputTarget& target = inputTargets.editTop();
|
|
target.inputChannel = windowInfo->inputChannel;
|
|
target.flags = targetFlags;
|
|
target.xOffset = - windowInfo->frameLeft;
|
|
target.yOffset = - windowInfo->frameTop;
|
|
target.scaleFactor = windowInfo->scaleFactor;
|
|
target.pointerIds = pointerIds;
|
|
}
|
|
|
|
void InputDispatcher::addMonitoringTargetsLocked(Vector<InputTarget>& inputTargets) {
|
|
for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
|
|
inputTargets.push();
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::checkInjectionPermission(const sp<InputWindowHandle>& windowHandle,
|
|
const InjectionState* injectionState) {
|
|
if (injectionState
|
|
&& (windowHandle == NULL
|
|
|| windowHandle->getInfo()->ownerUid != injectionState->injectorUid)
|
|
&& !hasInjectionPermission(injectionState->injectorPid, injectionState->injectorUid)) {
|
|
if (windowHandle != NULL) {
|
|
ALOGW("Permission denied: injecting event from pid %d uid %d to window %s "
|
|
"owned by uid %d",
|
|
injectionState->injectorPid, injectionState->injectorUid,
|
|
windowHandle->getName().string(),
|
|
windowHandle->getInfo()->ownerUid);
|
|
} else {
|
|
ALOGW("Permission denied: injecting event from pid %d uid %d",
|
|
injectionState->injectorPid, injectionState->injectorUid);
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool InputDispatcher::isWindowObscuredAtPointLocked(
|
|
const sp<InputWindowHandle>& windowHandle, int32_t x, int32_t y) const {
|
|
int32_t displayId = windowHandle->getInfo()->displayId;
|
|
size_t numWindows = mWindowHandles.size();
|
|
for (size_t i = 0; i < numWindows; i++) {
|
|
sp<InputWindowHandle> otherHandle = mWindowHandles.itemAt(i);
|
|
if (otherHandle == windowHandle) {
|
|
break;
|
|
}
|
|
|
|
const InputWindowInfo* otherInfo = otherHandle->getInfo();
|
|
if (otherInfo->displayId == displayId
|
|
&& otherInfo->visible && !otherInfo->isTrustedOverlay()
|
|
&& otherInfo->frameContainsPoint(x, y)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool InputDispatcher::isWindowReadyForMoreInputLocked(nsecs_t currentTime,
|
|
const sp<InputWindowHandle>& windowHandle, const EventEntry* eventEntry) {
|
|
ssize_t connectionIndex = getConnectionIndexLocked(windowHandle->getInputChannel());
|
|
if (connectionIndex >= 0) {
|
|
sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
|
|
if (connection->inputPublisherBlocked) {
|
|
return false;
|
|
}
|
|
if (eventEntry->type == EventEntry::TYPE_KEY) {
|
|
// If the event is a key event, then we must wait for all previous events to
|
|
// complete before delivering it because previous events may have the
|
|
// side-effect of transferring focus to a different window and we want to
|
|
// ensure that the following keys are sent to the new window.
|
|
//
|
|
// Suppose the user touches a button in a window then immediately presses "A".
|
|
// If the button causes a pop-up window to appear then we want to ensure that
|
|
// the "A" key is delivered to the new pop-up window. This is because users
|
|
// often anticipate pending UI changes when typing on a keyboard.
|
|
// To obtain this behavior, we must serialize key events with respect to all
|
|
// prior input events.
|
|
return connection->outboundQueue.isEmpty()
|
|
&& connection->waitQueue.isEmpty();
|
|
}
|
|
// Touch events can always be sent to a window immediately because the user intended
|
|
// to touch whatever was visible at the time. Even if focus changes or a new
|
|
// window appears moments later, the touch event was meant to be delivered to
|
|
// whatever window happened to be on screen at the time.
|
|
//
|
|
// Generic motion events, such as trackball or joystick events are a little trickier.
|
|
// Like key events, generic motion events are delivered to the focused window.
|
|
// Unlike key events, generic motion events don't tend to transfer focus to other
|
|
// windows and it is not important for them to be serialized. So we prefer to deliver
|
|
// generic motion events as soon as possible to improve efficiency and reduce lag
|
|
// through batching.
|
|
//
|
|
// The one case where we pause input event delivery is when the wait queue is piling
|
|
// up with lots of events because the application is not responding.
|
|
// This condition ensures that ANRs are detected reliably.
|
|
if (!connection->waitQueue.isEmpty()
|
|
&& currentTime >= connection->waitQueue.head->deliveryTime
|
|
+ STREAM_AHEAD_EVENT_TIMEOUT) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
String8 InputDispatcher::getApplicationWindowLabelLocked(
|
|
const sp<InputApplicationHandle>& applicationHandle,
|
|
const sp<InputWindowHandle>& windowHandle) {
|
|
if (applicationHandle != NULL) {
|
|
if (windowHandle != NULL) {
|
|
String8 label(applicationHandle->getName());
|
|
label.append(" - ");
|
|
label.append(windowHandle->getName());
|
|
return label;
|
|
} else {
|
|
return applicationHandle->getName();
|
|
}
|
|
} else if (windowHandle != NULL) {
|
|
return windowHandle->getName();
|
|
} else {
|
|
return String8("<unknown application or window>");
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::pokeUserActivityLocked(const EventEntry* eventEntry) {
|
|
if (mFocusedWindowHandle != NULL) {
|
|
const InputWindowInfo* info = mFocusedWindowHandle->getInfo();
|
|
if (info->inputFeatures & InputWindowInfo::INPUT_FEATURE_DISABLE_USER_ACTIVITY) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("Not poking user activity: disabled by window '%s'.", info->name.string());
|
|
#endif
|
|
return;
|
|
}
|
|
}
|
|
|
|
int32_t eventType = USER_ACTIVITY_EVENT_OTHER;
|
|
switch (eventEntry->type) {
|
|
case EventEntry::TYPE_MOTION: {
|
|
const MotionEntry* motionEntry = static_cast<const MotionEntry*>(eventEntry);
|
|
if (motionEntry->action == AMOTION_EVENT_ACTION_CANCEL) {
|
|
return;
|
|
}
|
|
|
|
if (MotionEvent::isTouchEvent(motionEntry->source, motionEntry->action)) {
|
|
eventType = USER_ACTIVITY_EVENT_TOUCH;
|
|
}
|
|
break;
|
|
}
|
|
case EventEntry::TYPE_KEY: {
|
|
const KeyEntry* keyEntry = static_cast<const KeyEntry*>(eventEntry);
|
|
if (keyEntry->flags & AKEY_EVENT_FLAG_CANCELED) {
|
|
return;
|
|
}
|
|
eventType = USER_ACTIVITY_EVENT_BUTTON;
|
|
break;
|
|
}
|
|
}
|
|
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doPokeUserActivityLockedInterruptible);
|
|
commandEntry->eventTime = eventEntry->eventTime;
|
|
commandEntry->userActivityEventType = eventType;
|
|
}
|
|
|
|
void InputDispatcher::prepareDispatchCycleLocked(nsecs_t currentTime,
|
|
const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ prepareDispatchCycle - flags=0x%08x, "
|
|
"xOffset=%f, yOffset=%f, scaleFactor=%f, "
|
|
"pointerIds=0x%x",
|
|
connection->getInputChannelName(), inputTarget->flags,
|
|
inputTarget->xOffset, inputTarget->yOffset,
|
|
inputTarget->scaleFactor, inputTarget->pointerIds.value);
|
|
#endif
|
|
|
|
// Skip this event if the connection status is not normal.
|
|
// We don't want to enqueue additional outbound events if the connection is broken.
|
|
if (connection->status != Connection::STATUS_NORMAL) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ Dropping event because the channel status is %s",
|
|
connection->getInputChannelName(), connection->getStatusLabel());
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
// Split a motion event if needed.
|
|
if (inputTarget->flags & InputTarget::FLAG_SPLIT) {
|
|
ALOG_ASSERT(eventEntry->type == EventEntry::TYPE_MOTION);
|
|
|
|
MotionEntry* originalMotionEntry = static_cast<MotionEntry*>(eventEntry);
|
|
if (inputTarget->pointerIds.count() != originalMotionEntry->pointerCount) {
|
|
MotionEntry* splitMotionEntry = splitMotionEvent(
|
|
originalMotionEntry, inputTarget->pointerIds);
|
|
if (!splitMotionEntry) {
|
|
return; // split event was dropped
|
|
}
|
|
#if DEBUG_FOCUS
|
|
ALOGD("channel '%s' ~ Split motion event.",
|
|
connection->getInputChannelName());
|
|
logOutboundMotionDetailsLocked(" ", splitMotionEntry);
|
|
#endif
|
|
enqueueDispatchEntriesLocked(currentTime, connection,
|
|
splitMotionEntry, inputTarget);
|
|
splitMotionEntry->release();
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Not splitting. Enqueue dispatch entries for the event as is.
|
|
enqueueDispatchEntriesLocked(currentTime, connection, eventEntry, inputTarget);
|
|
}
|
|
|
|
void InputDispatcher::enqueueDispatchEntriesLocked(nsecs_t currentTime,
|
|
const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget) {
|
|
bool wasEmpty = connection->outboundQueue.isEmpty();
|
|
|
|
// Enqueue dispatch entries for the requested modes.
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT);
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_OUTSIDE);
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER);
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_IS);
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT);
|
|
enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
|
|
InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER);
|
|
|
|
// If the outbound queue was previously empty, start the dispatch cycle going.
|
|
if (wasEmpty && !connection->outboundQueue.isEmpty()) {
|
|
startDispatchCycleLocked(currentTime, connection);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::enqueueDispatchEntryLocked(
|
|
const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget,
|
|
int32_t dispatchMode) {
|
|
int32_t inputTargetFlags = inputTarget->flags;
|
|
if (!(inputTargetFlags & dispatchMode)) {
|
|
return;
|
|
}
|
|
inputTargetFlags = (inputTargetFlags & ~InputTarget::FLAG_DISPATCH_MASK) | dispatchMode;
|
|
|
|
// This is a new event.
|
|
// Enqueue a new dispatch entry onto the outbound queue for this connection.
|
|
DispatchEntry* dispatchEntry = new DispatchEntry(eventEntry, // increments ref
|
|
inputTargetFlags, inputTarget->xOffset, inputTarget->yOffset,
|
|
inputTarget->scaleFactor);
|
|
|
|
// Apply target flags and update the connection's input state.
|
|
switch (eventEntry->type) {
|
|
case EventEntry::TYPE_KEY: {
|
|
KeyEntry* keyEntry = static_cast<KeyEntry*>(eventEntry);
|
|
dispatchEntry->resolvedAction = keyEntry->action;
|
|
dispatchEntry->resolvedFlags = keyEntry->flags;
|
|
|
|
if (!connection->inputState.trackKey(keyEntry,
|
|
dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags)) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent key event",
|
|
connection->getInputChannelName());
|
|
#endif
|
|
delete dispatchEntry;
|
|
return; // skip the inconsistent event
|
|
}
|
|
break;
|
|
}
|
|
|
|
case EventEntry::TYPE_MOTION: {
|
|
MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry);
|
|
if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) {
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_OUTSIDE;
|
|
} else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT) {
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_EXIT;
|
|
} else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER) {
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_ENTER;
|
|
} else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT) {
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_CANCEL;
|
|
} else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER) {
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_DOWN;
|
|
} else {
|
|
dispatchEntry->resolvedAction = motionEntry->action;
|
|
}
|
|
if (dispatchEntry->resolvedAction == AMOTION_EVENT_ACTION_HOVER_MOVE
|
|
&& !connection->inputState.isHovering(
|
|
motionEntry->deviceId, motionEntry->source, motionEntry->displayId)) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ enqueueDispatchEntryLocked: filling in missing hover enter event",
|
|
connection->getInputChannelName());
|
|
#endif
|
|
dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_ENTER;
|
|
}
|
|
|
|
dispatchEntry->resolvedFlags = motionEntry->flags;
|
|
if (dispatchEntry->targetFlags & InputTarget::FLAG_WINDOW_IS_OBSCURED) {
|
|
dispatchEntry->resolvedFlags |= AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED;
|
|
}
|
|
|
|
if (!connection->inputState.trackMotion(motionEntry,
|
|
dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags)) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent motion event",
|
|
connection->getInputChannelName());
|
|
#endif
|
|
delete dispatchEntry;
|
|
return; // skip the inconsistent event
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Remember that we are waiting for this dispatch to complete.
|
|
if (dispatchEntry->hasForegroundTarget()) {
|
|
incrementPendingForegroundDispatchesLocked(eventEntry);
|
|
}
|
|
|
|
// Enqueue the dispatch entry.
|
|
connection->outboundQueue.enqueueAtTail(dispatchEntry);
|
|
traceOutboundQueueLengthLocked(connection);
|
|
}
|
|
|
|
void InputDispatcher::startDispatchCycleLocked(nsecs_t currentTime,
|
|
const sp<Connection>& connection) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ startDispatchCycle",
|
|
connection->getInputChannelName());
|
|
#endif
|
|
|
|
while (connection->status == Connection::STATUS_NORMAL
|
|
&& !connection->outboundQueue.isEmpty()) {
|
|
DispatchEntry* dispatchEntry = connection->outboundQueue.head;
|
|
dispatchEntry->deliveryTime = currentTime;
|
|
|
|
// Publish the event.
|
|
status_t status;
|
|
EventEntry* eventEntry = dispatchEntry->eventEntry;
|
|
switch (eventEntry->type) {
|
|
case EventEntry::TYPE_KEY: {
|
|
KeyEntry* keyEntry = static_cast<KeyEntry*>(eventEntry);
|
|
|
|
// Publish the key event.
|
|
status = connection->inputPublisher.publishKeyEvent(dispatchEntry->seq,
|
|
keyEntry->deviceId, keyEntry->source,
|
|
dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags,
|
|
keyEntry->keyCode, keyEntry->scanCode,
|
|
keyEntry->metaState, keyEntry->repeatCount, keyEntry->downTime,
|
|
keyEntry->eventTime);
|
|
break;
|
|
}
|
|
|
|
case EventEntry::TYPE_MOTION: {
|
|
MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry);
|
|
|
|
PointerCoords scaledCoords[MAX_POINTERS];
|
|
const PointerCoords* usingCoords = motionEntry->pointerCoords;
|
|
|
|
// Set the X and Y offset depending on the input source.
|
|
float xOffset, yOffset, scaleFactor;
|
|
if ((motionEntry->source & AINPUT_SOURCE_CLASS_POINTER)
|
|
&& !(dispatchEntry->targetFlags & InputTarget::FLAG_ZERO_COORDS)) {
|
|
scaleFactor = dispatchEntry->scaleFactor;
|
|
xOffset = dispatchEntry->xOffset * scaleFactor;
|
|
yOffset = dispatchEntry->yOffset * scaleFactor;
|
|
if (scaleFactor != 1.0f) {
|
|
for (size_t i = 0; i < motionEntry->pointerCount; i++) {
|
|
scaledCoords[i] = motionEntry->pointerCoords[i];
|
|
scaledCoords[i].scale(scaleFactor);
|
|
}
|
|
usingCoords = scaledCoords;
|
|
}
|
|
} else {
|
|
xOffset = 0.0f;
|
|
yOffset = 0.0f;
|
|
scaleFactor = 1.0f;
|
|
|
|
// We don't want the dispatch target to know.
|
|
if (dispatchEntry->targetFlags & InputTarget::FLAG_ZERO_COORDS) {
|
|
for (size_t i = 0; i < motionEntry->pointerCount; i++) {
|
|
scaledCoords[i].clear();
|
|
}
|
|
usingCoords = scaledCoords;
|
|
}
|
|
}
|
|
|
|
// Publish the motion event.
|
|
status = connection->inputPublisher.publishMotionEvent(dispatchEntry->seq,
|
|
motionEntry->deviceId, motionEntry->source,
|
|
dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags,
|
|
motionEntry->edgeFlags, motionEntry->metaState, motionEntry->buttonState,
|
|
xOffset, yOffset,
|
|
motionEntry->xPrecision, motionEntry->yPrecision,
|
|
motionEntry->downTime, motionEntry->eventTime,
|
|
motionEntry->pointerCount, motionEntry->pointerProperties,
|
|
usingCoords);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
ALOG_ASSERT(false);
|
|
return;
|
|
}
|
|
|
|
// Check the result.
|
|
if (status) {
|
|
if (status == WOULD_BLOCK) {
|
|
if (connection->waitQueue.isEmpty()) {
|
|
ALOGE("channel '%s' ~ Could not publish event because the pipe is full. "
|
|
"This is unexpected because the wait queue is empty, so the pipe "
|
|
"should be empty and we shouldn't have any problems writing an "
|
|
"event to it, status=%d", connection->getInputChannelName(), status);
|
|
abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
|
|
} else {
|
|
// Pipe is full and we are waiting for the app to finish process some events
|
|
// before sending more events to it.
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ Could not publish event because the pipe is full, "
|
|
"waiting for the application to catch up",
|
|
connection->getInputChannelName());
|
|
#endif
|
|
connection->inputPublisherBlocked = true;
|
|
}
|
|
} else {
|
|
ALOGE("channel '%s' ~ Could not publish event due to an unexpected error, "
|
|
"status=%d", connection->getInputChannelName(), status);
|
|
abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Re-enqueue the event on the wait queue.
|
|
connection->outboundQueue.dequeue(dispatchEntry);
|
|
traceOutboundQueueLengthLocked(connection);
|
|
connection->waitQueue.enqueueAtTail(dispatchEntry);
|
|
traceWaitQueueLengthLocked(connection);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::finishDispatchCycleLocked(nsecs_t currentTime,
|
|
const sp<Connection>& connection, uint32_t seq, bool handled) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ finishDispatchCycle - seq=%u, handled=%s",
|
|
connection->getInputChannelName(), seq, toString(handled));
|
|
#endif
|
|
|
|
connection->inputPublisherBlocked = false;
|
|
|
|
if (connection->status == Connection::STATUS_BROKEN
|
|
|| connection->status == Connection::STATUS_ZOMBIE) {
|
|
return;
|
|
}
|
|
|
|
// Notify other system components and prepare to start the next dispatch cycle.
|
|
onDispatchCycleFinishedLocked(currentTime, connection, seq, handled);
|
|
}
|
|
|
|
void InputDispatcher::abortBrokenDispatchCycleLocked(nsecs_t currentTime,
|
|
const sp<Connection>& connection, bool notify) {
|
|
#if DEBUG_DISPATCH_CYCLE
|
|
ALOGD("channel '%s' ~ abortBrokenDispatchCycle - notify=%s",
|
|
connection->getInputChannelName(), toString(notify));
|
|
#endif
|
|
|
|
// Clear the dispatch queues.
|
|
drainDispatchQueueLocked(&connection->outboundQueue);
|
|
traceOutboundQueueLengthLocked(connection);
|
|
drainDispatchQueueLocked(&connection->waitQueue);
|
|
traceWaitQueueLengthLocked(connection);
|
|
|
|
// The connection appears to be unrecoverably broken.
|
|
// Ignore already broken or zombie connections.
|
|
if (connection->status == Connection::STATUS_NORMAL) {
|
|
connection->status = Connection::STATUS_BROKEN;
|
|
|
|
if (notify) {
|
|
// Notify other system components.
|
|
onDispatchCycleBrokenLocked(currentTime, connection);
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::drainDispatchQueueLocked(Queue<DispatchEntry>* queue) {
|
|
while (!queue->isEmpty()) {
|
|
DispatchEntry* dispatchEntry = queue->dequeueAtHead();
|
|
releaseDispatchEntryLocked(dispatchEntry);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::releaseDispatchEntryLocked(DispatchEntry* dispatchEntry) {
|
|
if (dispatchEntry->hasForegroundTarget()) {
|
|
decrementPendingForegroundDispatchesLocked(dispatchEntry->eventEntry);
|
|
}
|
|
delete dispatchEntry;
|
|
}
|
|
|
|
int InputDispatcher::handleReceiveCallback(int fd, int events, void* data) {
|
|
InputDispatcher* d = static_cast<InputDispatcher*>(data);
|
|
|
|
{ // acquire lock
|
|
AutoMutex _l(d->mLock);
|
|
|
|
ssize_t connectionIndex = d->mConnectionsByFd.indexOfKey(fd);
|
|
if (connectionIndex < 0) {
|
|
ALOGE("Received spurious receive callback for unknown input channel. "
|
|
"fd=%d, events=0x%x", fd, events);
|
|
return 0; // remove the callback
|
|
}
|
|
|
|
bool notify;
|
|
sp<Connection> connection = d->mConnectionsByFd.valueAt(connectionIndex);
|
|
if (!(events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP))) {
|
|
if (!(events & ALOOPER_EVENT_INPUT)) {
|
|
ALOGW("channel '%s' ~ Received spurious callback for unhandled poll event. "
|
|
"events=0x%x", connection->getInputChannelName(), events);
|
|
return 1;
|
|
}
|
|
|
|
nsecs_t currentTime = now();
|
|
bool gotOne = false;
|
|
status_t status;
|
|
for (;;) {
|
|
uint32_t seq;
|
|
bool handled;
|
|
status = connection->inputPublisher.receiveFinishedSignal(&seq, &handled);
|
|
if (status) {
|
|
break;
|
|
}
|
|
d->finishDispatchCycleLocked(currentTime, connection, seq, handled);
|
|
gotOne = true;
|
|
}
|
|
if (gotOne) {
|
|
d->runCommandsLockedInterruptible();
|
|
if (status == WOULD_BLOCK) {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
notify = status != DEAD_OBJECT || !connection->monitor;
|
|
if (notify) {
|
|
ALOGE("channel '%s' ~ Failed to receive finished signal. status=%d",
|
|
connection->getInputChannelName(), status);
|
|
}
|
|
} else {
|
|
// Monitor channels are never explicitly unregistered.
|
|
// We do it automatically when the remote endpoint is closed so don't warn
|
|
// about them.
|
|
notify = !connection->monitor;
|
|
if (notify) {
|
|
ALOGW("channel '%s' ~ Consumer closed input channel or an error occurred. "
|
|
"events=0x%x", connection->getInputChannelName(), events);
|
|
}
|
|
}
|
|
|
|
// Unregister the channel.
|
|
d->unregisterInputChannelLocked(connection->inputChannel, notify);
|
|
return 0; // remove the callback
|
|
} // release lock
|
|
}
|
|
|
|
void InputDispatcher::synthesizeCancelationEventsForAllConnectionsLocked(
|
|
const CancelationOptions& options) {
|
|
for (size_t i = 0; i < mConnectionsByFd.size(); i++) {
|
|
synthesizeCancelationEventsForConnectionLocked(
|
|
mConnectionsByFd.valueAt(i), options);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::synthesizeCancelationEventsForInputChannelLocked(
|
|
const sp<InputChannel>& channel, const CancelationOptions& options) {
|
|
ssize_t index = getConnectionIndexLocked(channel);
|
|
if (index >= 0) {
|
|
synthesizeCancelationEventsForConnectionLocked(
|
|
mConnectionsByFd.valueAt(index), options);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::synthesizeCancelationEventsForConnectionLocked(
|
|
const sp<Connection>& connection, const CancelationOptions& options) {
|
|
if (connection->status == Connection::STATUS_BROKEN) {
|
|
return;
|
|
}
|
|
|
|
nsecs_t currentTime = now();
|
|
|
|
Vector<EventEntry*> cancelationEvents;
|
|
connection->inputState.synthesizeCancelationEvents(currentTime,
|
|
cancelationEvents, options);
|
|
|
|
if (!cancelationEvents.isEmpty()) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("channel '%s' ~ Synthesized %d cancelation events to bring channel back in sync "
|
|
"with reality: %s, mode=%d.",
|
|
connection->getInputChannelName(), cancelationEvents.size(),
|
|
options.reason, options.mode);
|
|
#endif
|
|
for (size_t i = 0; i < cancelationEvents.size(); i++) {
|
|
EventEntry* cancelationEventEntry = cancelationEvents.itemAt(i);
|
|
switch (cancelationEventEntry->type) {
|
|
case EventEntry::TYPE_KEY:
|
|
logOutboundKeyDetailsLocked("cancel - ",
|
|
static_cast<KeyEntry*>(cancelationEventEntry));
|
|
break;
|
|
case EventEntry::TYPE_MOTION:
|
|
logOutboundMotionDetailsLocked("cancel - ",
|
|
static_cast<MotionEntry*>(cancelationEventEntry));
|
|
break;
|
|
}
|
|
|
|
InputTarget target;
|
|
sp<InputWindowHandle> windowHandle = getWindowHandleLocked(connection->inputChannel);
|
|
if (windowHandle != NULL) {
|
|
const InputWindowInfo* windowInfo = windowHandle->getInfo();
|
|
target.xOffset = -windowInfo->frameLeft;
|
|
target.yOffset = -windowInfo->frameTop;
|
|
target.scaleFactor = windowInfo->scaleFactor;
|
|
} else {
|
|
target.xOffset = 0;
|
|
target.yOffset = 0;
|
|
target.scaleFactor = 1.0f;
|
|
}
|
|
target.inputChannel = connection->inputChannel;
|
|
target.flags = InputTarget::FLAG_DISPATCH_AS_IS;
|
|
|
|
enqueueDispatchEntryLocked(connection, cancelationEventEntry, // increments ref
|
|
&target, InputTarget::FLAG_DISPATCH_AS_IS);
|
|
|
|
cancelationEventEntry->release();
|
|
}
|
|
|
|
startDispatchCycleLocked(currentTime, connection);
|
|
}
|
|
}
|
|
|
|
InputDispatcher::MotionEntry*
|
|
InputDispatcher::splitMotionEvent(const MotionEntry* originalMotionEntry, BitSet32 pointerIds) {
|
|
ALOG_ASSERT(pointerIds.value != 0);
|
|
|
|
uint32_t splitPointerIndexMap[MAX_POINTERS];
|
|
PointerProperties splitPointerProperties[MAX_POINTERS];
|
|
PointerCoords splitPointerCoords[MAX_POINTERS];
|
|
|
|
uint32_t originalPointerCount = originalMotionEntry->pointerCount;
|
|
uint32_t splitPointerCount = 0;
|
|
|
|
for (uint32_t originalPointerIndex = 0; originalPointerIndex < originalPointerCount;
|
|
originalPointerIndex++) {
|
|
const PointerProperties& pointerProperties =
|
|
originalMotionEntry->pointerProperties[originalPointerIndex];
|
|
uint32_t pointerId = uint32_t(pointerProperties.id);
|
|
if (pointerIds.hasBit(pointerId)) {
|
|
splitPointerIndexMap[splitPointerCount] = originalPointerIndex;
|
|
splitPointerProperties[splitPointerCount].copyFrom(pointerProperties);
|
|
splitPointerCoords[splitPointerCount].copyFrom(
|
|
originalMotionEntry->pointerCoords[originalPointerIndex]);
|
|
splitPointerCount += 1;
|
|
}
|
|
}
|
|
|
|
if (splitPointerCount != pointerIds.count()) {
|
|
// This is bad. We are missing some of the pointers that we expected to deliver.
|
|
// Most likely this indicates that we received an ACTION_MOVE events that has
|
|
// different pointer ids than we expected based on the previous ACTION_DOWN
|
|
// or ACTION_POINTER_DOWN events that caused us to decide to split the pointers
|
|
// in this way.
|
|
ALOGW("Dropping split motion event because the pointer count is %d but "
|
|
"we expected there to be %d pointers. This probably means we received "
|
|
"a broken sequence of pointer ids from the input device.",
|
|
splitPointerCount, pointerIds.count());
|
|
return NULL;
|
|
}
|
|
|
|
int32_t action = originalMotionEntry->action;
|
|
int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK;
|
|
if (maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN
|
|
|| maskedAction == AMOTION_EVENT_ACTION_POINTER_UP) {
|
|
int32_t originalPointerIndex = getMotionEventActionPointerIndex(action);
|
|
const PointerProperties& pointerProperties =
|
|
originalMotionEntry->pointerProperties[originalPointerIndex];
|
|
uint32_t pointerId = uint32_t(pointerProperties.id);
|
|
if (pointerIds.hasBit(pointerId)) {
|
|
if (pointerIds.count() == 1) {
|
|
// The first/last pointer went down/up.
|
|
action = maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN
|
|
? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP;
|
|
} else {
|
|
// A secondary pointer went down/up.
|
|
uint32_t splitPointerIndex = 0;
|
|
while (pointerId != uint32_t(splitPointerProperties[splitPointerIndex].id)) {
|
|
splitPointerIndex += 1;
|
|
}
|
|
action = maskedAction | (splitPointerIndex
|
|
<< AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
|
|
}
|
|
} else {
|
|
// An unrelated pointer changed.
|
|
action = AMOTION_EVENT_ACTION_MOVE;
|
|
}
|
|
}
|
|
|
|
MotionEntry* splitMotionEntry = new MotionEntry(
|
|
originalMotionEntry->eventTime,
|
|
originalMotionEntry->deviceId,
|
|
originalMotionEntry->source,
|
|
originalMotionEntry->policyFlags,
|
|
action,
|
|
originalMotionEntry->flags,
|
|
originalMotionEntry->metaState,
|
|
originalMotionEntry->buttonState,
|
|
originalMotionEntry->edgeFlags,
|
|
originalMotionEntry->xPrecision,
|
|
originalMotionEntry->yPrecision,
|
|
originalMotionEntry->downTime,
|
|
originalMotionEntry->displayId,
|
|
splitPointerCount, splitPointerProperties, splitPointerCoords, 0, 0);
|
|
|
|
if (originalMotionEntry->injectionState) {
|
|
splitMotionEntry->injectionState = originalMotionEntry->injectionState;
|
|
splitMotionEntry->injectionState->refCount += 1;
|
|
}
|
|
|
|
return splitMotionEntry;
|
|
}
|
|
|
|
void InputDispatcher::notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("notifyConfigurationChanged - eventTime=%lld", args->eventTime);
|
|
#endif
|
|
|
|
bool needWake;
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
ConfigurationChangedEntry* newEntry = new ConfigurationChangedEntry(args->eventTime);
|
|
needWake = enqueueInboundEventLocked(newEntry);
|
|
} // release lock
|
|
|
|
if (needWake) {
|
|
mLooper->wake();
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::notifyKey(const NotifyKeyArgs* args) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("notifyKey - eventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, action=0x%x, "
|
|
"flags=0x%x, keyCode=0x%x, scanCode=0x%x, metaState=0x%x, downTime=%lld",
|
|
args->eventTime, args->deviceId, args->source, args->policyFlags,
|
|
args->action, args->flags, args->keyCode, args->scanCode,
|
|
args->metaState, args->downTime);
|
|
#endif
|
|
if (!validateKeyEvent(args->action)) {
|
|
return;
|
|
}
|
|
|
|
uint32_t policyFlags = args->policyFlags;
|
|
int32_t flags = args->flags;
|
|
int32_t metaState = args->metaState;
|
|
if ((policyFlags & POLICY_FLAG_VIRTUAL) || (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY)) {
|
|
policyFlags |= POLICY_FLAG_VIRTUAL;
|
|
flags |= AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY;
|
|
}
|
|
if (policyFlags & POLICY_FLAG_ALT) {
|
|
metaState |= AMETA_ALT_ON | AMETA_ALT_LEFT_ON;
|
|
}
|
|
if (policyFlags & POLICY_FLAG_ALT_GR) {
|
|
metaState |= AMETA_ALT_ON | AMETA_ALT_RIGHT_ON;
|
|
}
|
|
if (policyFlags & POLICY_FLAG_SHIFT) {
|
|
metaState |= AMETA_SHIFT_ON | AMETA_SHIFT_LEFT_ON;
|
|
}
|
|
if (policyFlags & POLICY_FLAG_CAPS_LOCK) {
|
|
metaState |= AMETA_CAPS_LOCK_ON;
|
|
}
|
|
if (policyFlags & POLICY_FLAG_FUNCTION) {
|
|
metaState |= AMETA_FUNCTION_ON;
|
|
}
|
|
|
|
policyFlags |= POLICY_FLAG_TRUSTED;
|
|
|
|
KeyEvent event;
|
|
event.initialize(args->deviceId, args->source, args->action,
|
|
flags, args->keyCode, args->scanCode, metaState, 0,
|
|
args->downTime, args->eventTime);
|
|
|
|
mPolicy->interceptKeyBeforeQueueing(&event, /*byref*/ policyFlags);
|
|
|
|
if (policyFlags & POLICY_FLAG_WOKE_HERE) {
|
|
flags |= AKEY_EVENT_FLAG_WOKE_HERE;
|
|
}
|
|
|
|
bool needWake;
|
|
{ // acquire lock
|
|
mLock.lock();
|
|
|
|
if (shouldSendKeyToInputFilterLocked(args)) {
|
|
mLock.unlock();
|
|
|
|
policyFlags |= POLICY_FLAG_FILTERED;
|
|
if (!mPolicy->filterInputEvent(&event, policyFlags)) {
|
|
return; // event was consumed by the filter
|
|
}
|
|
|
|
mLock.lock();
|
|
}
|
|
|
|
int32_t repeatCount = 0;
|
|
KeyEntry* newEntry = new KeyEntry(args->eventTime,
|
|
args->deviceId, args->source, policyFlags,
|
|
args->action, flags, args->keyCode, args->scanCode,
|
|
metaState, repeatCount, args->downTime);
|
|
|
|
needWake = enqueueInboundEventLocked(newEntry);
|
|
mLock.unlock();
|
|
} // release lock
|
|
|
|
if (needWake) {
|
|
mLooper->wake();
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::shouldSendKeyToInputFilterLocked(const NotifyKeyArgs* args) {
|
|
return mInputFilterEnabled;
|
|
}
|
|
|
|
void InputDispatcher::notifyMotion(const NotifyMotionArgs* args) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("notifyMotion - eventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, "
|
|
"action=0x%x, flags=0x%x, metaState=0x%x, buttonState=0x%x, edgeFlags=0x%x, "
|
|
"xPrecision=%f, yPrecision=%f, downTime=%lld",
|
|
args->eventTime, args->deviceId, args->source, args->policyFlags,
|
|
args->action, args->flags, args->metaState, args->buttonState,
|
|
args->edgeFlags, args->xPrecision, args->yPrecision, args->downTime);
|
|
for (uint32_t i = 0; i < args->pointerCount; i++) {
|
|
ALOGD(" Pointer %d: id=%d, toolType=%d, "
|
|
"x=%f, y=%f, pressure=%f, size=%f, "
|
|
"touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, "
|
|
"orientation=%f",
|
|
i, args->pointerProperties[i].id,
|
|
args->pointerProperties[i].toolType,
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
|
|
args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION));
|
|
}
|
|
#endif
|
|
if (!validateMotionEvent(args->action, args->pointerCount, args->pointerProperties)) {
|
|
return;
|
|
}
|
|
|
|
uint32_t policyFlags = args->policyFlags;
|
|
policyFlags |= POLICY_FLAG_TRUSTED;
|
|
mPolicy->interceptMotionBeforeQueueing(args->eventTime, /*byref*/ policyFlags);
|
|
|
|
bool needWake;
|
|
{ // acquire lock
|
|
mLock.lock();
|
|
|
|
if (shouldSendMotionToInputFilterLocked(args)) {
|
|
mLock.unlock();
|
|
|
|
MotionEvent event;
|
|
event.initialize(args->deviceId, args->source, args->action, args->flags,
|
|
args->edgeFlags, args->metaState, args->buttonState, 0, 0,
|
|
args->xPrecision, args->yPrecision,
|
|
args->downTime, args->eventTime,
|
|
args->pointerCount, args->pointerProperties, args->pointerCoords);
|
|
|
|
policyFlags |= POLICY_FLAG_FILTERED;
|
|
if (!mPolicy->filterInputEvent(&event, policyFlags)) {
|
|
return; // event was consumed by the filter
|
|
}
|
|
|
|
mLock.lock();
|
|
}
|
|
|
|
// Just enqueue a new motion event.
|
|
MotionEntry* newEntry = new MotionEntry(args->eventTime,
|
|
args->deviceId, args->source, policyFlags,
|
|
args->action, args->flags, args->metaState, args->buttonState,
|
|
args->edgeFlags, args->xPrecision, args->yPrecision, args->downTime,
|
|
args->displayId,
|
|
args->pointerCount, args->pointerProperties, args->pointerCoords, 0, 0);
|
|
|
|
needWake = enqueueInboundEventLocked(newEntry);
|
|
mLock.unlock();
|
|
} // release lock
|
|
|
|
if (needWake) {
|
|
mLooper->wake();
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::shouldSendMotionToInputFilterLocked(const NotifyMotionArgs* args) {
|
|
// TODO: support sending secondary display events to input filter
|
|
return mInputFilterEnabled && isMainDisplay(args->displayId);
|
|
}
|
|
|
|
void InputDispatcher::notifySwitch(const NotifySwitchArgs* args) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("notifySwitch - eventTime=%lld, policyFlags=0x%x, switchValues=0x%08x, switchMask=0x%08x",
|
|
args->eventTime, args->policyFlags,
|
|
args->switchValues, args->switchMask);
|
|
#endif
|
|
|
|
uint32_t policyFlags = args->policyFlags;
|
|
policyFlags |= POLICY_FLAG_TRUSTED;
|
|
mPolicy->notifySwitch(args->eventTime,
|
|
args->switchValues, args->switchMask, policyFlags);
|
|
}
|
|
|
|
void InputDispatcher::notifyDeviceReset(const NotifyDeviceResetArgs* args) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("notifyDeviceReset - eventTime=%lld, deviceId=%d",
|
|
args->eventTime, args->deviceId);
|
|
#endif
|
|
|
|
bool needWake;
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
DeviceResetEntry* newEntry = new DeviceResetEntry(args->eventTime, args->deviceId);
|
|
needWake = enqueueInboundEventLocked(newEntry);
|
|
} // release lock
|
|
|
|
if (needWake) {
|
|
mLooper->wake();
|
|
}
|
|
}
|
|
|
|
int32_t InputDispatcher::injectInputEvent(const InputEvent* event, int32_t displayId,
|
|
int32_t injectorPid, int32_t injectorUid, int32_t syncMode, int32_t timeoutMillis,
|
|
uint32_t policyFlags) {
|
|
#if DEBUG_INBOUND_EVENT_DETAILS
|
|
ALOGD("injectInputEvent - eventType=%d, injectorPid=%d, injectorUid=%d, "
|
|
"syncMode=%d, timeoutMillis=%d, policyFlags=0x%08x",
|
|
event->getType(), injectorPid, injectorUid, syncMode, timeoutMillis, policyFlags);
|
|
#endif
|
|
|
|
nsecs_t endTime = now() + milliseconds_to_nanoseconds(timeoutMillis);
|
|
|
|
policyFlags |= POLICY_FLAG_INJECTED;
|
|
if (hasInjectionPermission(injectorPid, injectorUid)) {
|
|
policyFlags |= POLICY_FLAG_TRUSTED;
|
|
}
|
|
|
|
EventEntry* firstInjectedEntry;
|
|
EventEntry* lastInjectedEntry;
|
|
switch (event->getType()) {
|
|
case AINPUT_EVENT_TYPE_KEY: {
|
|
const KeyEvent* keyEvent = static_cast<const KeyEvent*>(event);
|
|
int32_t action = keyEvent->getAction();
|
|
if (! validateKeyEvent(action)) {
|
|
return INPUT_EVENT_INJECTION_FAILED;
|
|
}
|
|
|
|
int32_t flags = keyEvent->getFlags();
|
|
if (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY) {
|
|
policyFlags |= POLICY_FLAG_VIRTUAL;
|
|
}
|
|
|
|
if (!(policyFlags & POLICY_FLAG_FILTERED)) {
|
|
mPolicy->interceptKeyBeforeQueueing(keyEvent, /*byref*/ policyFlags);
|
|
}
|
|
|
|
if (policyFlags & POLICY_FLAG_WOKE_HERE) {
|
|
flags |= AKEY_EVENT_FLAG_WOKE_HERE;
|
|
}
|
|
|
|
mLock.lock();
|
|
firstInjectedEntry = new KeyEntry(keyEvent->getEventTime(),
|
|
keyEvent->getDeviceId(), keyEvent->getSource(),
|
|
policyFlags, action, flags,
|
|
keyEvent->getKeyCode(), keyEvent->getScanCode(), keyEvent->getMetaState(),
|
|
keyEvent->getRepeatCount(), keyEvent->getDownTime());
|
|
lastInjectedEntry = firstInjectedEntry;
|
|
break;
|
|
}
|
|
|
|
case AINPUT_EVENT_TYPE_MOTION: {
|
|
const MotionEvent* motionEvent = static_cast<const MotionEvent*>(event);
|
|
int32_t action = motionEvent->getAction();
|
|
size_t pointerCount = motionEvent->getPointerCount();
|
|
const PointerProperties* pointerProperties = motionEvent->getPointerProperties();
|
|
if (! validateMotionEvent(action, pointerCount, pointerProperties)) {
|
|
return INPUT_EVENT_INJECTION_FAILED;
|
|
}
|
|
|
|
if (!(policyFlags & POLICY_FLAG_FILTERED)) {
|
|
nsecs_t eventTime = motionEvent->getEventTime();
|
|
mPolicy->interceptMotionBeforeQueueing(eventTime, /*byref*/ policyFlags);
|
|
}
|
|
|
|
mLock.lock();
|
|
const nsecs_t* sampleEventTimes = motionEvent->getSampleEventTimes();
|
|
const PointerCoords* samplePointerCoords = motionEvent->getSamplePointerCoords();
|
|
firstInjectedEntry = new MotionEntry(*sampleEventTimes,
|
|
motionEvent->getDeviceId(), motionEvent->getSource(), policyFlags,
|
|
action, motionEvent->getFlags(),
|
|
motionEvent->getMetaState(), motionEvent->getButtonState(),
|
|
motionEvent->getEdgeFlags(),
|
|
motionEvent->getXPrecision(), motionEvent->getYPrecision(),
|
|
motionEvent->getDownTime(), displayId,
|
|
uint32_t(pointerCount), pointerProperties, samplePointerCoords,
|
|
motionEvent->getXOffset(), motionEvent->getYOffset());
|
|
lastInjectedEntry = firstInjectedEntry;
|
|
for (size_t i = motionEvent->getHistorySize(); i > 0; i--) {
|
|
sampleEventTimes += 1;
|
|
samplePointerCoords += pointerCount;
|
|
MotionEntry* nextInjectedEntry = new MotionEntry(*sampleEventTimes,
|
|
motionEvent->getDeviceId(), motionEvent->getSource(), policyFlags,
|
|
action, motionEvent->getFlags(),
|
|
motionEvent->getMetaState(), motionEvent->getButtonState(),
|
|
motionEvent->getEdgeFlags(),
|
|
motionEvent->getXPrecision(), motionEvent->getYPrecision(),
|
|
motionEvent->getDownTime(), displayId,
|
|
uint32_t(pointerCount), pointerProperties, samplePointerCoords,
|
|
motionEvent->getXOffset(), motionEvent->getYOffset());
|
|
lastInjectedEntry->next = nextInjectedEntry;
|
|
lastInjectedEntry = nextInjectedEntry;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
ALOGW("Cannot inject event of type %d", event->getType());
|
|
return INPUT_EVENT_INJECTION_FAILED;
|
|
}
|
|
|
|
InjectionState* injectionState = new InjectionState(injectorPid, injectorUid);
|
|
if (syncMode == INPUT_EVENT_INJECTION_SYNC_NONE) {
|
|
injectionState->injectionIsAsync = true;
|
|
}
|
|
|
|
injectionState->refCount += 1;
|
|
lastInjectedEntry->injectionState = injectionState;
|
|
|
|
bool needWake = false;
|
|
for (EventEntry* entry = firstInjectedEntry; entry != NULL; ) {
|
|
EventEntry* nextEntry = entry->next;
|
|
needWake |= enqueueInboundEventLocked(entry);
|
|
entry = nextEntry;
|
|
}
|
|
|
|
mLock.unlock();
|
|
|
|
if (needWake) {
|
|
mLooper->wake();
|
|
}
|
|
|
|
int32_t injectionResult;
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
if (syncMode == INPUT_EVENT_INJECTION_SYNC_NONE) {
|
|
injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED;
|
|
} else {
|
|
for (;;) {
|
|
injectionResult = injectionState->injectionResult;
|
|
if (injectionResult != INPUT_EVENT_INJECTION_PENDING) {
|
|
break;
|
|
}
|
|
|
|
nsecs_t remainingTimeout = endTime - now();
|
|
if (remainingTimeout <= 0) {
|
|
#if DEBUG_INJECTION
|
|
ALOGD("injectInputEvent - Timed out waiting for injection result "
|
|
"to become available.");
|
|
#endif
|
|
injectionResult = INPUT_EVENT_INJECTION_TIMED_OUT;
|
|
break;
|
|
}
|
|
|
|
mInjectionResultAvailableCondition.waitRelative(mLock, remainingTimeout);
|
|
}
|
|
|
|
if (injectionResult == INPUT_EVENT_INJECTION_SUCCEEDED
|
|
&& syncMode == INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_FINISHED) {
|
|
while (injectionState->pendingForegroundDispatches != 0) {
|
|
#if DEBUG_INJECTION
|
|
ALOGD("injectInputEvent - Waiting for %d pending foreground dispatches.",
|
|
injectionState->pendingForegroundDispatches);
|
|
#endif
|
|
nsecs_t remainingTimeout = endTime - now();
|
|
if (remainingTimeout <= 0) {
|
|
#if DEBUG_INJECTION
|
|
ALOGD("injectInputEvent - Timed out waiting for pending foreground "
|
|
"dispatches to finish.");
|
|
#endif
|
|
injectionResult = INPUT_EVENT_INJECTION_TIMED_OUT;
|
|
break;
|
|
}
|
|
|
|
mInjectionSyncFinishedCondition.waitRelative(mLock, remainingTimeout);
|
|
}
|
|
}
|
|
}
|
|
|
|
injectionState->release();
|
|
} // release lock
|
|
|
|
#if DEBUG_INJECTION
|
|
ALOGD("injectInputEvent - Finished with result %d. "
|
|
"injectorPid=%d, injectorUid=%d",
|
|
injectionResult, injectorPid, injectorUid);
|
|
#endif
|
|
|
|
return injectionResult;
|
|
}
|
|
|
|
bool InputDispatcher::hasInjectionPermission(int32_t injectorPid, int32_t injectorUid) {
|
|
return injectorUid == 0
|
|
|| mPolicy->checkInjectEventsPermissionNonReentrant(injectorPid, injectorUid);
|
|
}
|
|
|
|
void InputDispatcher::setInjectionResultLocked(EventEntry* entry, int32_t injectionResult) {
|
|
InjectionState* injectionState = entry->injectionState;
|
|
if (injectionState) {
|
|
#if DEBUG_INJECTION
|
|
ALOGD("Setting input event injection result to %d. "
|
|
"injectorPid=%d, injectorUid=%d",
|
|
injectionResult, injectionState->injectorPid, injectionState->injectorUid);
|
|
#endif
|
|
|
|
if (injectionState->injectionIsAsync
|
|
&& !(entry->policyFlags & POLICY_FLAG_FILTERED)) {
|
|
// Log the outcome since the injector did not wait for the injection result.
|
|
switch (injectionResult) {
|
|
case INPUT_EVENT_INJECTION_SUCCEEDED:
|
|
ALOGV("Asynchronous input event injection succeeded.");
|
|
break;
|
|
case INPUT_EVENT_INJECTION_FAILED:
|
|
ALOGW("Asynchronous input event injection failed.");
|
|
break;
|
|
case INPUT_EVENT_INJECTION_PERMISSION_DENIED:
|
|
ALOGW("Asynchronous input event injection permission denied.");
|
|
break;
|
|
case INPUT_EVENT_INJECTION_TIMED_OUT:
|
|
ALOGW("Asynchronous input event injection timed out.");
|
|
break;
|
|
}
|
|
}
|
|
|
|
injectionState->injectionResult = injectionResult;
|
|
mInjectionResultAvailableCondition.broadcast();
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::incrementPendingForegroundDispatchesLocked(EventEntry* entry) {
|
|
InjectionState* injectionState = entry->injectionState;
|
|
if (injectionState) {
|
|
injectionState->pendingForegroundDispatches += 1;
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::decrementPendingForegroundDispatchesLocked(EventEntry* entry) {
|
|
InjectionState* injectionState = entry->injectionState;
|
|
if (injectionState) {
|
|
injectionState->pendingForegroundDispatches -= 1;
|
|
|
|
if (injectionState->pendingForegroundDispatches == 0) {
|
|
mInjectionSyncFinishedCondition.broadcast();
|
|
}
|
|
}
|
|
}
|
|
|
|
sp<InputWindowHandle> InputDispatcher::getWindowHandleLocked(
|
|
const sp<InputChannel>& inputChannel) const {
|
|
size_t numWindows = mWindowHandles.size();
|
|
for (size_t i = 0; i < numWindows; i++) {
|
|
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
|
|
if (windowHandle->getInputChannel() == inputChannel) {
|
|
return windowHandle;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
bool InputDispatcher::hasWindowHandleLocked(
|
|
const sp<InputWindowHandle>& windowHandle) const {
|
|
size_t numWindows = mWindowHandles.size();
|
|
for (size_t i = 0; i < numWindows; i++) {
|
|
if (mWindowHandles.itemAt(i) == windowHandle) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void InputDispatcher::setInputWindows(const Vector<sp<InputWindowHandle> >& inputWindowHandles) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("setInputWindows");
|
|
#endif
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
Vector<sp<InputWindowHandle> > oldWindowHandles = mWindowHandles;
|
|
mWindowHandles = inputWindowHandles;
|
|
|
|
sp<InputWindowHandle> newFocusedWindowHandle;
|
|
bool foundHoveredWindow = false;
|
|
for (size_t i = 0; i < mWindowHandles.size(); i++) {
|
|
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
|
|
if (!windowHandle->updateInfo() || windowHandle->getInputChannel() == NULL) {
|
|
mWindowHandles.removeAt(i--);
|
|
continue;
|
|
}
|
|
if (windowHandle->getInfo()->hasFocus) {
|
|
newFocusedWindowHandle = windowHandle;
|
|
}
|
|
if (windowHandle == mLastHoverWindowHandle) {
|
|
foundHoveredWindow = true;
|
|
}
|
|
}
|
|
|
|
if (!foundHoveredWindow) {
|
|
mLastHoverWindowHandle = NULL;
|
|
}
|
|
|
|
if (mFocusedWindowHandle != newFocusedWindowHandle) {
|
|
if (mFocusedWindowHandle != NULL) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Focus left window: %s",
|
|
mFocusedWindowHandle->getName().string());
|
|
#endif
|
|
sp<InputChannel> focusedInputChannel = mFocusedWindowHandle->getInputChannel();
|
|
if (focusedInputChannel != NULL) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS,
|
|
"focus left window");
|
|
synthesizeCancelationEventsForInputChannelLocked(
|
|
focusedInputChannel, options);
|
|
}
|
|
}
|
|
if (newFocusedWindowHandle != NULL) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Focus entered window: %s",
|
|
newFocusedWindowHandle->getName().string());
|
|
#endif
|
|
}
|
|
mFocusedWindowHandle = newFocusedWindowHandle;
|
|
}
|
|
|
|
for (size_t d = 0; d < mTouchStatesByDisplay.size(); d++) {
|
|
TouchState& state = mTouchStatesByDisplay.editValueAt(d);
|
|
for (size_t i = 0; i < state.windows.size(); i++) {
|
|
TouchedWindow& touchedWindow = state.windows.editItemAt(i);
|
|
if (!hasWindowHandleLocked(touchedWindow.windowHandle)) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Touched window was removed: %s",
|
|
touchedWindow.windowHandle->getName().string());
|
|
#endif
|
|
sp<InputChannel> touchedInputChannel =
|
|
touchedWindow.windowHandle->getInputChannel();
|
|
if (touchedInputChannel != NULL) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
|
|
"touched window was removed");
|
|
synthesizeCancelationEventsForInputChannelLocked(
|
|
touchedInputChannel, options);
|
|
}
|
|
state.windows.removeAt(i--);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Release information for windows that are no longer present.
|
|
// This ensures that unused input channels are released promptly.
|
|
// Otherwise, they might stick around until the window handle is destroyed
|
|
// which might not happen until the next GC.
|
|
for (size_t i = 0; i < oldWindowHandles.size(); i++) {
|
|
const sp<InputWindowHandle>& oldWindowHandle = oldWindowHandles.itemAt(i);
|
|
if (!hasWindowHandleLocked(oldWindowHandle)) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Window went away: %s", oldWindowHandle->getName().string());
|
|
#endif
|
|
oldWindowHandle->releaseInfo();
|
|
}
|
|
}
|
|
} // release lock
|
|
|
|
// Wake up poll loop since it may need to make new input dispatching choices.
|
|
mLooper->wake();
|
|
}
|
|
|
|
void InputDispatcher::setFocusedApplication(
|
|
const sp<InputApplicationHandle>& inputApplicationHandle) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("setFocusedApplication");
|
|
#endif
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
if (inputApplicationHandle != NULL && inputApplicationHandle->updateInfo()) {
|
|
if (mFocusedApplicationHandle != inputApplicationHandle) {
|
|
if (mFocusedApplicationHandle != NULL) {
|
|
resetANRTimeoutsLocked();
|
|
mFocusedApplicationHandle->releaseInfo();
|
|
}
|
|
mFocusedApplicationHandle = inputApplicationHandle;
|
|
}
|
|
} else if (mFocusedApplicationHandle != NULL) {
|
|
resetANRTimeoutsLocked();
|
|
mFocusedApplicationHandle->releaseInfo();
|
|
mFocusedApplicationHandle.clear();
|
|
}
|
|
|
|
#if DEBUG_FOCUS
|
|
//logDispatchStateLocked();
|
|
#endif
|
|
} // release lock
|
|
|
|
// Wake up poll loop since it may need to make new input dispatching choices.
|
|
mLooper->wake();
|
|
}
|
|
|
|
void InputDispatcher::setInputDispatchMode(bool enabled, bool frozen) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("setInputDispatchMode: enabled=%d, frozen=%d", enabled, frozen);
|
|
#endif
|
|
|
|
bool changed;
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
if (mDispatchEnabled != enabled || mDispatchFrozen != frozen) {
|
|
if (mDispatchFrozen && !frozen) {
|
|
resetANRTimeoutsLocked();
|
|
}
|
|
|
|
if (mDispatchEnabled && !enabled) {
|
|
resetAndDropEverythingLocked("dispatcher is being disabled");
|
|
}
|
|
|
|
mDispatchEnabled = enabled;
|
|
mDispatchFrozen = frozen;
|
|
changed = true;
|
|
} else {
|
|
changed = false;
|
|
}
|
|
|
|
#if DEBUG_FOCUS
|
|
//logDispatchStateLocked();
|
|
#endif
|
|
} // release lock
|
|
|
|
if (changed) {
|
|
// Wake up poll loop since it may need to make new input dispatching choices.
|
|
mLooper->wake();
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::setInputFilterEnabled(bool enabled) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("setInputFilterEnabled: enabled=%d", enabled);
|
|
#endif
|
|
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
if (mInputFilterEnabled == enabled) {
|
|
return;
|
|
}
|
|
|
|
mInputFilterEnabled = enabled;
|
|
resetAndDropEverythingLocked("input filter is being enabled or disabled");
|
|
} // release lock
|
|
|
|
// Wake up poll loop since there might be work to do to drop everything.
|
|
mLooper->wake();
|
|
}
|
|
|
|
bool InputDispatcher::transferTouchFocus(const sp<InputChannel>& fromChannel,
|
|
const sp<InputChannel>& toChannel) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("transferTouchFocus: fromChannel=%s, toChannel=%s",
|
|
fromChannel->getName().string(), toChannel->getName().string());
|
|
#endif
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
sp<InputWindowHandle> fromWindowHandle = getWindowHandleLocked(fromChannel);
|
|
sp<InputWindowHandle> toWindowHandle = getWindowHandleLocked(toChannel);
|
|
if (fromWindowHandle == NULL || toWindowHandle == NULL) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Cannot transfer focus because from or to window not found.");
|
|
#endif
|
|
return false;
|
|
}
|
|
if (fromWindowHandle == toWindowHandle) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Trivial transfer to same window.");
|
|
#endif
|
|
return true;
|
|
}
|
|
if (fromWindowHandle->getInfo()->displayId != toWindowHandle->getInfo()->displayId) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Cannot transfer focus because windows are on different displays.");
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
bool found = false;
|
|
for (size_t d = 0; d < mTouchStatesByDisplay.size(); d++) {
|
|
TouchState& state = mTouchStatesByDisplay.editValueAt(d);
|
|
for (size_t i = 0; i < state.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = state.windows[i];
|
|
if (touchedWindow.windowHandle == fromWindowHandle) {
|
|
int32_t oldTargetFlags = touchedWindow.targetFlags;
|
|
BitSet32 pointerIds = touchedWindow.pointerIds;
|
|
|
|
state.windows.removeAt(i);
|
|
|
|
int32_t newTargetFlags = oldTargetFlags
|
|
& (InputTarget::FLAG_FOREGROUND
|
|
| InputTarget::FLAG_SPLIT | InputTarget::FLAG_DISPATCH_AS_IS);
|
|
state.addOrUpdateWindow(toWindowHandle, newTargetFlags, pointerIds);
|
|
|
|
found = true;
|
|
goto Found;
|
|
}
|
|
}
|
|
}
|
|
Found:
|
|
|
|
if (! found) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Focus transfer failed because from window did not have focus.");
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
ssize_t fromConnectionIndex = getConnectionIndexLocked(fromChannel);
|
|
ssize_t toConnectionIndex = getConnectionIndexLocked(toChannel);
|
|
if (fromConnectionIndex >= 0 && toConnectionIndex >= 0) {
|
|
sp<Connection> fromConnection = mConnectionsByFd.valueAt(fromConnectionIndex);
|
|
sp<Connection> toConnection = mConnectionsByFd.valueAt(toConnectionIndex);
|
|
|
|
fromConnection->inputState.copyPointerStateTo(toConnection->inputState);
|
|
CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
|
|
"transferring touch focus from this window to another window");
|
|
synthesizeCancelationEventsForConnectionLocked(fromConnection, options);
|
|
}
|
|
|
|
#if DEBUG_FOCUS
|
|
logDispatchStateLocked();
|
|
#endif
|
|
} // release lock
|
|
|
|
// Wake up poll loop since it may need to make new input dispatching choices.
|
|
mLooper->wake();
|
|
return true;
|
|
}
|
|
|
|
void InputDispatcher::resetAndDropEverythingLocked(const char* reason) {
|
|
#if DEBUG_FOCUS
|
|
ALOGD("Resetting and dropping all events (%s).", reason);
|
|
#endif
|
|
|
|
CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS, reason);
|
|
synthesizeCancelationEventsForAllConnectionsLocked(options);
|
|
|
|
resetKeyRepeatLocked();
|
|
releasePendingEventLocked();
|
|
drainInboundQueueLocked();
|
|
resetANRTimeoutsLocked();
|
|
|
|
mTouchStatesByDisplay.clear();
|
|
mLastHoverWindowHandle.clear();
|
|
}
|
|
|
|
void InputDispatcher::logDispatchStateLocked() {
|
|
String8 dump;
|
|
dumpDispatchStateLocked(dump);
|
|
|
|
char* text = dump.lockBuffer(dump.size());
|
|
char* start = text;
|
|
while (*start != '\0') {
|
|
char* end = strchr(start, '\n');
|
|
if (*end == '\n') {
|
|
*(end++) = '\0';
|
|
}
|
|
ALOGD("%s", start);
|
|
start = end;
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::dumpDispatchStateLocked(String8& dump) {
|
|
dump.appendFormat(INDENT "DispatchEnabled: %d\n", mDispatchEnabled);
|
|
dump.appendFormat(INDENT "DispatchFrozen: %d\n", mDispatchFrozen);
|
|
|
|
if (mFocusedApplicationHandle != NULL) {
|
|
dump.appendFormat(INDENT "FocusedApplication: name='%s', dispatchingTimeout=%0.3fms\n",
|
|
mFocusedApplicationHandle->getName().string(),
|
|
mFocusedApplicationHandle->getDispatchingTimeout(
|
|
DEFAULT_INPUT_DISPATCHING_TIMEOUT) / 1000000.0);
|
|
} else {
|
|
dump.append(INDENT "FocusedApplication: <null>\n");
|
|
}
|
|
dump.appendFormat(INDENT "FocusedWindow: name='%s'\n",
|
|
mFocusedWindowHandle != NULL ? mFocusedWindowHandle->getName().string() : "<null>");
|
|
|
|
if (!mTouchStatesByDisplay.isEmpty()) {
|
|
dump.appendFormat(INDENT "TouchStatesByDisplay:\n");
|
|
for (size_t i = 0; i < mTouchStatesByDisplay.size(); i++) {
|
|
const TouchState& state = mTouchStatesByDisplay.valueAt(i);
|
|
dump.appendFormat(INDENT2 "%d: down=%s, split=%s, deviceId=%d, source=0x%08x\n",
|
|
state.displayId, toString(state.down), toString(state.split),
|
|
state.deviceId, state.source);
|
|
if (!state.windows.isEmpty()) {
|
|
dump.append(INDENT3 "Windows:\n");
|
|
for (size_t i = 0; i < state.windows.size(); i++) {
|
|
const TouchedWindow& touchedWindow = state.windows[i];
|
|
dump.appendFormat(INDENT4 "%zu: name='%s', pointerIds=0x%0x, targetFlags=0x%x\n",
|
|
i, touchedWindow.windowHandle->getName().string(),
|
|
touchedWindow.pointerIds.value,
|
|
touchedWindow.targetFlags);
|
|
}
|
|
} else {
|
|
dump.append(INDENT3 "Windows: <none>\n");
|
|
}
|
|
}
|
|
} else {
|
|
dump.append(INDENT "TouchStates: <no displays touched>\n");
|
|
}
|
|
|
|
if (!mWindowHandles.isEmpty()) {
|
|
dump.append(INDENT "Windows:\n");
|
|
for (size_t i = 0; i < mWindowHandles.size(); i++) {
|
|
const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
|
|
const InputWindowInfo* windowInfo = windowHandle->getInfo();
|
|
|
|
dump.appendFormat(INDENT2 "%zu: name='%s', displayId=%d, "
|
|
"paused=%s, hasFocus=%s, hasWallpaper=%s, "
|
|
"visible=%s, canReceiveKeys=%s, flags=0x%08x, type=0x%08x, layer=%d, "
|
|
"frame=[%d,%d][%d,%d], scale=%f, "
|
|
"touchableRegion=",
|
|
i, windowInfo->name.string(), windowInfo->displayId,
|
|
toString(windowInfo->paused),
|
|
toString(windowInfo->hasFocus),
|
|
toString(windowInfo->hasWallpaper),
|
|
toString(windowInfo->visible),
|
|
toString(windowInfo->canReceiveKeys),
|
|
windowInfo->layoutParamsFlags, windowInfo->layoutParamsType,
|
|
windowInfo->layer,
|
|
windowInfo->frameLeft, windowInfo->frameTop,
|
|
windowInfo->frameRight, windowInfo->frameBottom,
|
|
windowInfo->scaleFactor);
|
|
dumpRegion(dump, windowInfo->touchableRegion);
|
|
dump.appendFormat(", inputFeatures=0x%08x", windowInfo->inputFeatures);
|
|
dump.appendFormat(", ownerPid=%d, ownerUid=%d, dispatchingTimeout=%0.3fms\n",
|
|
windowInfo->ownerPid, windowInfo->ownerUid,
|
|
windowInfo->dispatchingTimeout / 1000000.0);
|
|
}
|
|
} else {
|
|
dump.append(INDENT "Windows: <none>\n");
|
|
}
|
|
|
|
if (!mMonitoringChannels.isEmpty()) {
|
|
dump.append(INDENT "MonitoringChannels:\n");
|
|
for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
|
|
const sp<InputChannel>& channel = mMonitoringChannels[i];
|
|
dump.appendFormat(INDENT2 "%zu: '%s'\n", i, channel->getName().string());
|
|
}
|
|
} else {
|
|
dump.append(INDENT "MonitoringChannels: <none>\n");
|
|
}
|
|
|
|
nsecs_t currentTime = now();
|
|
|
|
// Dump recently dispatched or dropped events from oldest to newest.
|
|
if (!mRecentQueue.isEmpty()) {
|
|
dump.appendFormat(INDENT "RecentQueue: length=%u\n", mRecentQueue.count());
|
|
for (EventEntry* entry = mRecentQueue.head; entry; entry = entry->next) {
|
|
dump.append(INDENT2);
|
|
entry->appendDescription(dump);
|
|
dump.appendFormat(", age=%0.1fms\n",
|
|
(currentTime - entry->eventTime) * 0.000001f);
|
|
}
|
|
} else {
|
|
dump.append(INDENT "RecentQueue: <empty>\n");
|
|
}
|
|
|
|
// Dump event currently being dispatched.
|
|
if (mPendingEvent) {
|
|
dump.append(INDENT "PendingEvent:\n");
|
|
dump.append(INDENT2);
|
|
mPendingEvent->appendDescription(dump);
|
|
dump.appendFormat(", age=%0.1fms\n",
|
|
(currentTime - mPendingEvent->eventTime) * 0.000001f);
|
|
} else {
|
|
dump.append(INDENT "PendingEvent: <none>\n");
|
|
}
|
|
|
|
// Dump inbound events from oldest to newest.
|
|
if (!mInboundQueue.isEmpty()) {
|
|
dump.appendFormat(INDENT "InboundQueue: length=%u\n", mInboundQueue.count());
|
|
for (EventEntry* entry = mInboundQueue.head; entry; entry = entry->next) {
|
|
dump.append(INDENT2);
|
|
entry->appendDescription(dump);
|
|
dump.appendFormat(", age=%0.1fms\n",
|
|
(currentTime - entry->eventTime) * 0.000001f);
|
|
}
|
|
} else {
|
|
dump.append(INDENT "InboundQueue: <empty>\n");
|
|
}
|
|
|
|
if (!mConnectionsByFd.isEmpty()) {
|
|
dump.append(INDENT "Connections:\n");
|
|
for (size_t i = 0; i < mConnectionsByFd.size(); i++) {
|
|
const sp<Connection>& connection = mConnectionsByFd.valueAt(i);
|
|
dump.appendFormat(INDENT2 "%zu: channelName='%s', windowName='%s', "
|
|
"status=%s, monitor=%s, inputPublisherBlocked=%s\n",
|
|
i, connection->getInputChannelName(), connection->getWindowName(),
|
|
connection->getStatusLabel(), toString(connection->monitor),
|
|
toString(connection->inputPublisherBlocked));
|
|
|
|
if (!connection->outboundQueue.isEmpty()) {
|
|
dump.appendFormat(INDENT3 "OutboundQueue: length=%u\n",
|
|
connection->outboundQueue.count());
|
|
for (DispatchEntry* entry = connection->outboundQueue.head; entry;
|
|
entry = entry->next) {
|
|
dump.append(INDENT4);
|
|
entry->eventEntry->appendDescription(dump);
|
|
dump.appendFormat(", targetFlags=0x%08x, resolvedAction=%d, age=%0.1fms\n",
|
|
entry->targetFlags, entry->resolvedAction,
|
|
(currentTime - entry->eventEntry->eventTime) * 0.000001f);
|
|
}
|
|
} else {
|
|
dump.append(INDENT3 "OutboundQueue: <empty>\n");
|
|
}
|
|
|
|
if (!connection->waitQueue.isEmpty()) {
|
|
dump.appendFormat(INDENT3 "WaitQueue: length=%u\n",
|
|
connection->waitQueue.count());
|
|
for (DispatchEntry* entry = connection->waitQueue.head; entry;
|
|
entry = entry->next) {
|
|
dump.append(INDENT4);
|
|
entry->eventEntry->appendDescription(dump);
|
|
dump.appendFormat(", targetFlags=0x%08x, resolvedAction=%d, "
|
|
"age=%0.1fms, wait=%0.1fms\n",
|
|
entry->targetFlags, entry->resolvedAction,
|
|
(currentTime - entry->eventEntry->eventTime) * 0.000001f,
|
|
(currentTime - entry->deliveryTime) * 0.000001f);
|
|
}
|
|
} else {
|
|
dump.append(INDENT3 "WaitQueue: <empty>\n");
|
|
}
|
|
}
|
|
} else {
|
|
dump.append(INDENT "Connections: <none>\n");
|
|
}
|
|
|
|
if (isAppSwitchPendingLocked()) {
|
|
dump.appendFormat(INDENT "AppSwitch: pending, due in %0.1fms\n",
|
|
(mAppSwitchDueTime - now()) / 1000000.0);
|
|
} else {
|
|
dump.append(INDENT "AppSwitch: not pending\n");
|
|
}
|
|
|
|
dump.append(INDENT "Configuration:\n");
|
|
dump.appendFormat(INDENT2 "KeyRepeatDelay: %0.1fms\n",
|
|
mConfig.keyRepeatDelay * 0.000001f);
|
|
dump.appendFormat(INDENT2 "KeyRepeatTimeout: %0.1fms\n",
|
|
mConfig.keyRepeatTimeout * 0.000001f);
|
|
}
|
|
|
|
status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChannel,
|
|
const sp<InputWindowHandle>& inputWindowHandle, bool monitor) {
|
|
#if DEBUG_REGISTRATION
|
|
ALOGD("channel '%s' ~ registerInputChannel - monitor=%s", inputChannel->getName().string(),
|
|
toString(monitor));
|
|
#endif
|
|
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
if (getConnectionIndexLocked(inputChannel) >= 0) {
|
|
ALOGW("Attempted to register already registered input channel '%s'",
|
|
inputChannel->getName().string());
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
sp<Connection> connection = new Connection(inputChannel, inputWindowHandle, monitor);
|
|
|
|
int fd = inputChannel->getFd();
|
|
mConnectionsByFd.add(fd, connection);
|
|
|
|
if (monitor) {
|
|
mMonitoringChannels.push(inputChannel);
|
|
}
|
|
|
|
mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, handleReceiveCallback, this);
|
|
} // release lock
|
|
|
|
// Wake the looper because some connections have changed.
|
|
mLooper->wake();
|
|
return OK;
|
|
}
|
|
|
|
status_t InputDispatcher::unregisterInputChannel(const sp<InputChannel>& inputChannel) {
|
|
#if DEBUG_REGISTRATION
|
|
ALOGD("channel '%s' ~ unregisterInputChannel", inputChannel->getName().string());
|
|
#endif
|
|
|
|
{ // acquire lock
|
|
AutoMutex _l(mLock);
|
|
|
|
status_t status = unregisterInputChannelLocked(inputChannel, false /*notify*/);
|
|
if (status) {
|
|
return status;
|
|
}
|
|
} // release lock
|
|
|
|
// Wake the poll loop because removing the connection may have changed the current
|
|
// synchronization state.
|
|
mLooper->wake();
|
|
return OK;
|
|
}
|
|
|
|
status_t InputDispatcher::unregisterInputChannelLocked(const sp<InputChannel>& inputChannel,
|
|
bool notify) {
|
|
ssize_t connectionIndex = getConnectionIndexLocked(inputChannel);
|
|
if (connectionIndex < 0) {
|
|
ALOGW("Attempted to unregister already unregistered input channel '%s'",
|
|
inputChannel->getName().string());
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
|
|
mConnectionsByFd.removeItemsAt(connectionIndex);
|
|
|
|
if (connection->monitor) {
|
|
removeMonitorChannelLocked(inputChannel);
|
|
}
|
|
|
|
mLooper->removeFd(inputChannel->getFd());
|
|
|
|
nsecs_t currentTime = now();
|
|
abortBrokenDispatchCycleLocked(currentTime, connection, notify);
|
|
|
|
connection->status = Connection::STATUS_ZOMBIE;
|
|
return OK;
|
|
}
|
|
|
|
void InputDispatcher::removeMonitorChannelLocked(const sp<InputChannel>& inputChannel) {
|
|
for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
|
|
if (mMonitoringChannels[i] == inputChannel) {
|
|
mMonitoringChannels.removeAt(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ssize_t InputDispatcher::getConnectionIndexLocked(const sp<InputChannel>& inputChannel) {
|
|
ssize_t connectionIndex = mConnectionsByFd.indexOfKey(inputChannel->getFd());
|
|
if (connectionIndex >= 0) {
|
|
sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
|
|
if (connection->inputChannel.get() == inputChannel.get()) {
|
|
return connectionIndex;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
void InputDispatcher::onDispatchCycleFinishedLocked(
|
|
nsecs_t currentTime, const sp<Connection>& connection, uint32_t seq, bool handled) {
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doDispatchCycleFinishedLockedInterruptible);
|
|
commandEntry->connection = connection;
|
|
commandEntry->eventTime = currentTime;
|
|
commandEntry->seq = seq;
|
|
commandEntry->handled = handled;
|
|
}
|
|
|
|
void InputDispatcher::onDispatchCycleBrokenLocked(
|
|
nsecs_t currentTime, const sp<Connection>& connection) {
|
|
ALOGE("channel '%s' ~ Channel is unrecoverably broken and will be disposed!",
|
|
connection->getInputChannelName());
|
|
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doNotifyInputChannelBrokenLockedInterruptible);
|
|
commandEntry->connection = connection;
|
|
}
|
|
|
|
void InputDispatcher::onANRLocked(
|
|
nsecs_t currentTime, const sp<InputApplicationHandle>& applicationHandle,
|
|
const sp<InputWindowHandle>& windowHandle,
|
|
nsecs_t eventTime, nsecs_t waitStartTime, const char* reason) {
|
|
float dispatchLatency = (currentTime - eventTime) * 0.000001f;
|
|
float waitDuration = (currentTime - waitStartTime) * 0.000001f;
|
|
ALOGI("Application is not responding: %s. "
|
|
"It has been %0.1fms since event, %0.1fms since wait started. Reason: %s",
|
|
getApplicationWindowLabelLocked(applicationHandle, windowHandle).string(),
|
|
dispatchLatency, waitDuration, reason);
|
|
|
|
// Capture a record of the InputDispatcher state at the time of the ANR.
|
|
time_t t = time(NULL);
|
|
struct tm tm;
|
|
localtime_r(&t, &tm);
|
|
char timestr[64];
|
|
strftime(timestr, sizeof(timestr), "%F %T", &tm);
|
|
mLastANRState.clear();
|
|
mLastANRState.append(INDENT "ANR:\n");
|
|
mLastANRState.appendFormat(INDENT2 "Time: %s\n", timestr);
|
|
mLastANRState.appendFormat(INDENT2 "Window: %s\n",
|
|
getApplicationWindowLabelLocked(applicationHandle, windowHandle).string());
|
|
mLastANRState.appendFormat(INDENT2 "DispatchLatency: %0.1fms\n", dispatchLatency);
|
|
mLastANRState.appendFormat(INDENT2 "WaitDuration: %0.1fms\n", waitDuration);
|
|
mLastANRState.appendFormat(INDENT2 "Reason: %s\n", reason);
|
|
dumpDispatchStateLocked(mLastANRState);
|
|
|
|
CommandEntry* commandEntry = postCommandLocked(
|
|
& InputDispatcher::doNotifyANRLockedInterruptible);
|
|
commandEntry->inputApplicationHandle = applicationHandle;
|
|
commandEntry->inputWindowHandle = windowHandle;
|
|
commandEntry->reason = reason;
|
|
}
|
|
|
|
void InputDispatcher::doNotifyConfigurationChangedInterruptible(
|
|
CommandEntry* commandEntry) {
|
|
mLock.unlock();
|
|
|
|
mPolicy->notifyConfigurationChanged(commandEntry->eventTime);
|
|
|
|
mLock.lock();
|
|
}
|
|
|
|
void InputDispatcher::doNotifyInputChannelBrokenLockedInterruptible(
|
|
CommandEntry* commandEntry) {
|
|
sp<Connection> connection = commandEntry->connection;
|
|
|
|
if (connection->status != Connection::STATUS_ZOMBIE) {
|
|
mLock.unlock();
|
|
|
|
mPolicy->notifyInputChannelBroken(connection->inputWindowHandle);
|
|
|
|
mLock.lock();
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::doNotifyANRLockedInterruptible(
|
|
CommandEntry* commandEntry) {
|
|
mLock.unlock();
|
|
|
|
nsecs_t newTimeout = mPolicy->notifyANR(
|
|
commandEntry->inputApplicationHandle, commandEntry->inputWindowHandle,
|
|
commandEntry->reason);
|
|
|
|
mLock.lock();
|
|
|
|
resumeAfterTargetsNotReadyTimeoutLocked(newTimeout,
|
|
commandEntry->inputWindowHandle != NULL
|
|
? commandEntry->inputWindowHandle->getInputChannel() : NULL);
|
|
}
|
|
|
|
void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
|
|
CommandEntry* commandEntry) {
|
|
KeyEntry* entry = commandEntry->keyEntry;
|
|
|
|
KeyEvent event;
|
|
initializeKeyEvent(&event, entry);
|
|
|
|
mLock.unlock();
|
|
|
|
nsecs_t delay = mPolicy->interceptKeyBeforeDispatching(commandEntry->inputWindowHandle,
|
|
&event, entry->policyFlags);
|
|
|
|
mLock.lock();
|
|
|
|
if (delay < 0) {
|
|
entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_SKIP;
|
|
} else if (!delay) {
|
|
entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_CONTINUE;
|
|
} else {
|
|
entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER;
|
|
entry->interceptKeyWakeupTime = now() + delay;
|
|
}
|
|
entry->release();
|
|
}
|
|
|
|
void InputDispatcher::doDispatchCycleFinishedLockedInterruptible(
|
|
CommandEntry* commandEntry) {
|
|
sp<Connection> connection = commandEntry->connection;
|
|
nsecs_t finishTime = commandEntry->eventTime;
|
|
uint32_t seq = commandEntry->seq;
|
|
bool handled = commandEntry->handled;
|
|
|
|
// Handle post-event policy actions.
|
|
DispatchEntry* dispatchEntry = connection->findWaitQueueEntry(seq);
|
|
if (dispatchEntry) {
|
|
nsecs_t eventDuration = finishTime - dispatchEntry->deliveryTime;
|
|
if (eventDuration > SLOW_EVENT_PROCESSING_WARNING_TIMEOUT) {
|
|
String8 msg;
|
|
msg.appendFormat("Window '%s' spent %0.1fms processing the last input event: ",
|
|
connection->getWindowName(), eventDuration * 0.000001f);
|
|
dispatchEntry->eventEntry->appendDescription(msg);
|
|
ALOGI("%s", msg.string());
|
|
}
|
|
|
|
bool restartEvent;
|
|
if (dispatchEntry->eventEntry->type == EventEntry::TYPE_KEY) {
|
|
KeyEntry* keyEntry = static_cast<KeyEntry*>(dispatchEntry->eventEntry);
|
|
restartEvent = afterKeyEventLockedInterruptible(connection,
|
|
dispatchEntry, keyEntry, handled);
|
|
} else if (dispatchEntry->eventEntry->type == EventEntry::TYPE_MOTION) {
|
|
MotionEntry* motionEntry = static_cast<MotionEntry*>(dispatchEntry->eventEntry);
|
|
restartEvent = afterMotionEventLockedInterruptible(connection,
|
|
dispatchEntry, motionEntry, handled);
|
|
} else {
|
|
restartEvent = false;
|
|
}
|
|
|
|
// Dequeue the event and start the next cycle.
|
|
// Note that because the lock might have been released, it is possible that the
|
|
// contents of the wait queue to have been drained, so we need to double-check
|
|
// a few things.
|
|
if (dispatchEntry == connection->findWaitQueueEntry(seq)) {
|
|
connection->waitQueue.dequeue(dispatchEntry);
|
|
traceWaitQueueLengthLocked(connection);
|
|
if (restartEvent && connection->status == Connection::STATUS_NORMAL) {
|
|
connection->outboundQueue.enqueueAtHead(dispatchEntry);
|
|
traceOutboundQueueLengthLocked(connection);
|
|
} else {
|
|
releaseDispatchEntryLocked(dispatchEntry);
|
|
}
|
|
}
|
|
|
|
// Start the next dispatch cycle for this connection.
|
|
startDispatchCycleLocked(now(), connection);
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::afterKeyEventLockedInterruptible(const sp<Connection>& connection,
|
|
DispatchEntry* dispatchEntry, KeyEntry* keyEntry, bool handled) {
|
|
if (!(keyEntry->flags & AKEY_EVENT_FLAG_FALLBACK)) {
|
|
// Get the fallback key state.
|
|
// Clear it out after dispatching the UP.
|
|
int32_t originalKeyCode = keyEntry->keyCode;
|
|
int32_t fallbackKeyCode = connection->inputState.getFallbackKey(originalKeyCode);
|
|
if (keyEntry->action == AKEY_EVENT_ACTION_UP) {
|
|
connection->inputState.removeFallbackKey(originalKeyCode);
|
|
}
|
|
|
|
if (handled || !dispatchEntry->hasForegroundTarget()) {
|
|
// If the application handles the original key for which we previously
|
|
// generated a fallback or if the window is not a foreground window,
|
|
// then cancel the associated fallback key, if any.
|
|
if (fallbackKeyCode != -1) {
|
|
// Dispatch the unhandled key to the policy with the cancel flag.
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Unhandled key event: Asking policy to cancel fallback action. "
|
|
"keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
|
|
keyEntry->keyCode, keyEntry->action, keyEntry->repeatCount,
|
|
keyEntry->policyFlags);
|
|
#endif
|
|
KeyEvent event;
|
|
initializeKeyEvent(&event, keyEntry);
|
|
event.setFlags(event.getFlags() | AKEY_EVENT_FLAG_CANCELED);
|
|
|
|
mLock.unlock();
|
|
|
|
mPolicy->dispatchUnhandledKey(connection->inputWindowHandle,
|
|
&event, keyEntry->policyFlags, &event);
|
|
|
|
mLock.lock();
|
|
|
|
// Cancel the fallback key.
|
|
if (fallbackKeyCode != AKEYCODE_UNKNOWN) {
|
|
CancelationOptions options(CancelationOptions::CANCEL_FALLBACK_EVENTS,
|
|
"application handled the original non-fallback key "
|
|
"or is no longer a foreground target, "
|
|
"canceling previously dispatched fallback key");
|
|
options.keyCode = fallbackKeyCode;
|
|
synthesizeCancelationEventsForConnectionLocked(connection, options);
|
|
}
|
|
connection->inputState.removeFallbackKey(originalKeyCode);
|
|
}
|
|
} else {
|
|
// If the application did not handle a non-fallback key, first check
|
|
// that we are in a good state to perform unhandled key event processing
|
|
// Then ask the policy what to do with it.
|
|
bool initialDown = keyEntry->action == AKEY_EVENT_ACTION_DOWN
|
|
&& keyEntry->repeatCount == 0;
|
|
if (fallbackKeyCode == -1 && !initialDown) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Unhandled key event: Skipping unhandled key event processing "
|
|
"since this is not an initial down. "
|
|
"keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
|
|
originalKeyCode, keyEntry->action, keyEntry->repeatCount,
|
|
keyEntry->policyFlags);
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
// Dispatch the unhandled key to the policy.
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Unhandled key event: Asking policy to perform fallback action. "
|
|
"keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
|
|
keyEntry->keyCode, keyEntry->action, keyEntry->repeatCount,
|
|
keyEntry->policyFlags);
|
|
#endif
|
|
KeyEvent event;
|
|
initializeKeyEvent(&event, keyEntry);
|
|
|
|
mLock.unlock();
|
|
|
|
bool fallback = mPolicy->dispatchUnhandledKey(connection->inputWindowHandle,
|
|
&event, keyEntry->policyFlags, &event);
|
|
|
|
mLock.lock();
|
|
|
|
if (connection->status != Connection::STATUS_NORMAL) {
|
|
connection->inputState.removeFallbackKey(originalKeyCode);
|
|
return false;
|
|
}
|
|
|
|
// Latch the fallback keycode for this key on an initial down.
|
|
// The fallback keycode cannot change at any other point in the lifecycle.
|
|
if (initialDown) {
|
|
if (fallback) {
|
|
fallbackKeyCode = event.getKeyCode();
|
|
} else {
|
|
fallbackKeyCode = AKEYCODE_UNKNOWN;
|
|
}
|
|
connection->inputState.setFallbackKey(originalKeyCode, fallbackKeyCode);
|
|
}
|
|
|
|
ALOG_ASSERT(fallbackKeyCode != -1);
|
|
|
|
// Cancel the fallback key if the policy decides not to send it anymore.
|
|
// We will continue to dispatch the key to the policy but we will no
|
|
// longer dispatch a fallback key to the application.
|
|
if (fallbackKeyCode != AKEYCODE_UNKNOWN
|
|
&& (!fallback || fallbackKeyCode != event.getKeyCode())) {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
if (fallback) {
|
|
ALOGD("Unhandled key event: Policy requested to send key %d"
|
|
"as a fallback for %d, but on the DOWN it had requested "
|
|
"to send %d instead. Fallback canceled.",
|
|
event.getKeyCode(), originalKeyCode, fallbackKeyCode);
|
|
} else {
|
|
ALOGD("Unhandled key event: Policy did not request fallback for %d, "
|
|
"but on the DOWN it had requested to send %d. "
|
|
"Fallback canceled.",
|
|
originalKeyCode, fallbackKeyCode);
|
|
}
|
|
#endif
|
|
|
|
CancelationOptions options(CancelationOptions::CANCEL_FALLBACK_EVENTS,
|
|
"canceling fallback, policy no longer desires it");
|
|
options.keyCode = fallbackKeyCode;
|
|
synthesizeCancelationEventsForConnectionLocked(connection, options);
|
|
|
|
fallback = false;
|
|
fallbackKeyCode = AKEYCODE_UNKNOWN;
|
|
if (keyEntry->action != AKEY_EVENT_ACTION_UP) {
|
|
connection->inputState.setFallbackKey(originalKeyCode,
|
|
fallbackKeyCode);
|
|
}
|
|
}
|
|
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
{
|
|
String8 msg;
|
|
const KeyedVector<int32_t, int32_t>& fallbackKeys =
|
|
connection->inputState.getFallbackKeys();
|
|
for (size_t i = 0; i < fallbackKeys.size(); i++) {
|
|
msg.appendFormat(", %d->%d", fallbackKeys.keyAt(i),
|
|
fallbackKeys.valueAt(i));
|
|
}
|
|
ALOGD("Unhandled key event: %d currently tracked fallback keys%s.",
|
|
fallbackKeys.size(), msg.string());
|
|
}
|
|
#endif
|
|
|
|
if (fallback) {
|
|
// Restart the dispatch cycle using the fallback key.
|
|
keyEntry->eventTime = event.getEventTime();
|
|
keyEntry->deviceId = event.getDeviceId();
|
|
keyEntry->source = event.getSource();
|
|
keyEntry->flags = event.getFlags() | AKEY_EVENT_FLAG_FALLBACK;
|
|
keyEntry->keyCode = fallbackKeyCode;
|
|
keyEntry->scanCode = event.getScanCode();
|
|
keyEntry->metaState = event.getMetaState();
|
|
keyEntry->repeatCount = event.getRepeatCount();
|
|
keyEntry->downTime = event.getDownTime();
|
|
keyEntry->syntheticRepeat = false;
|
|
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Unhandled key event: Dispatching fallback key. "
|
|
"originalKeyCode=%d, fallbackKeyCode=%d, fallbackMetaState=%08x",
|
|
originalKeyCode, fallbackKeyCode, keyEntry->metaState);
|
|
#endif
|
|
return true; // restart the event
|
|
} else {
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Unhandled key event: No fallback key.");
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool InputDispatcher::afterMotionEventLockedInterruptible(const sp<Connection>& connection,
|
|
DispatchEntry* dispatchEntry, MotionEntry* motionEntry, bool handled) {
|
|
return false;
|
|
}
|
|
|
|
void InputDispatcher::doPokeUserActivityLockedInterruptible(CommandEntry* commandEntry) {
|
|
mLock.unlock();
|
|
|
|
mPolicy->pokeUserActivity(commandEntry->eventTime, commandEntry->userActivityEventType);
|
|
|
|
mLock.lock();
|
|
}
|
|
|
|
void InputDispatcher::initializeKeyEvent(KeyEvent* event, const KeyEntry* entry) {
|
|
event->initialize(entry->deviceId, entry->source, entry->action, entry->flags,
|
|
entry->keyCode, entry->scanCode, entry->metaState, entry->repeatCount,
|
|
entry->downTime, entry->eventTime);
|
|
}
|
|
|
|
void InputDispatcher::updateDispatchStatisticsLocked(nsecs_t currentTime, const EventEntry* entry,
|
|
int32_t injectionResult, nsecs_t timeSpentWaitingForApplication) {
|
|
// TODO Write some statistics about how long we spend waiting.
|
|
}
|
|
|
|
void InputDispatcher::traceInboundQueueLengthLocked() {
|
|
if (ATRACE_ENABLED()) {
|
|
ATRACE_INT("iq", mInboundQueue.count());
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::traceOutboundQueueLengthLocked(const sp<Connection>& connection) {
|
|
if (ATRACE_ENABLED()) {
|
|
char counterName[40];
|
|
snprintf(counterName, sizeof(counterName), "oq:%s", connection->getWindowName());
|
|
ATRACE_INT(counterName, connection->outboundQueue.count());
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::traceWaitQueueLengthLocked(const sp<Connection>& connection) {
|
|
if (ATRACE_ENABLED()) {
|
|
char counterName[40];
|
|
snprintf(counterName, sizeof(counterName), "wq:%s", connection->getWindowName());
|
|
ATRACE_INT(counterName, connection->waitQueue.count());
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::dump(String8& dump) {
|
|
AutoMutex _l(mLock);
|
|
|
|
dump.append("Input Dispatcher State:\n");
|
|
dumpDispatchStateLocked(dump);
|
|
|
|
if (!mLastANRState.isEmpty()) {
|
|
dump.append("\nInput Dispatcher State at time of last ANR:\n");
|
|
dump.append(mLastANRState);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::monitor() {
|
|
// Acquire and release the lock to ensure that the dispatcher has not deadlocked.
|
|
mLock.lock();
|
|
mLooper->wake();
|
|
mDispatcherIsAliveCondition.wait(mLock);
|
|
mLock.unlock();
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::Queue ---
|
|
|
|
template <typename T>
|
|
uint32_t InputDispatcher::Queue<T>::count() const {
|
|
uint32_t result = 0;
|
|
for (const T* entry = head; entry; entry = entry->next) {
|
|
result += 1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::InjectionState ---
|
|
|
|
InputDispatcher::InjectionState::InjectionState(int32_t injectorPid, int32_t injectorUid) :
|
|
refCount(1),
|
|
injectorPid(injectorPid), injectorUid(injectorUid),
|
|
injectionResult(INPUT_EVENT_INJECTION_PENDING), injectionIsAsync(false),
|
|
pendingForegroundDispatches(0) {
|
|
}
|
|
|
|
InputDispatcher::InjectionState::~InjectionState() {
|
|
}
|
|
|
|
void InputDispatcher::InjectionState::release() {
|
|
refCount -= 1;
|
|
if (refCount == 0) {
|
|
delete this;
|
|
} else {
|
|
ALOG_ASSERT(refCount > 0);
|
|
}
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::EventEntry ---
|
|
|
|
InputDispatcher::EventEntry::EventEntry(int32_t type, nsecs_t eventTime, uint32_t policyFlags) :
|
|
refCount(1), type(type), eventTime(eventTime), policyFlags(policyFlags),
|
|
injectionState(NULL), dispatchInProgress(false) {
|
|
}
|
|
|
|
InputDispatcher::EventEntry::~EventEntry() {
|
|
releaseInjectionState();
|
|
}
|
|
|
|
void InputDispatcher::EventEntry::release() {
|
|
refCount -= 1;
|
|
if (refCount == 0) {
|
|
delete this;
|
|
} else {
|
|
ALOG_ASSERT(refCount > 0);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::EventEntry::releaseInjectionState() {
|
|
if (injectionState) {
|
|
injectionState->release();
|
|
injectionState = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::ConfigurationChangedEntry ---
|
|
|
|
InputDispatcher::ConfigurationChangedEntry::ConfigurationChangedEntry(nsecs_t eventTime) :
|
|
EventEntry(TYPE_CONFIGURATION_CHANGED, eventTime, 0) {
|
|
}
|
|
|
|
InputDispatcher::ConfigurationChangedEntry::~ConfigurationChangedEntry() {
|
|
}
|
|
|
|
void InputDispatcher::ConfigurationChangedEntry::appendDescription(String8& msg) const {
|
|
msg.append("ConfigurationChangedEvent(), policyFlags=0x%08x",
|
|
policyFlags);
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::DeviceResetEntry ---
|
|
|
|
InputDispatcher::DeviceResetEntry::DeviceResetEntry(nsecs_t eventTime, int32_t deviceId) :
|
|
EventEntry(TYPE_DEVICE_RESET, eventTime, 0),
|
|
deviceId(deviceId) {
|
|
}
|
|
|
|
InputDispatcher::DeviceResetEntry::~DeviceResetEntry() {
|
|
}
|
|
|
|
void InputDispatcher::DeviceResetEntry::appendDescription(String8& msg) const {
|
|
msg.appendFormat("DeviceResetEvent(deviceId=%d), policyFlags=0x%08x",
|
|
deviceId, policyFlags);
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::KeyEntry ---
|
|
|
|
InputDispatcher::KeyEntry::KeyEntry(nsecs_t eventTime,
|
|
int32_t deviceId, uint32_t source, uint32_t policyFlags, int32_t action,
|
|
int32_t flags, int32_t keyCode, int32_t scanCode, int32_t metaState,
|
|
int32_t repeatCount, nsecs_t downTime) :
|
|
EventEntry(TYPE_KEY, eventTime, policyFlags),
|
|
deviceId(deviceId), source(source), action(action), flags(flags),
|
|
keyCode(keyCode), scanCode(scanCode), metaState(metaState),
|
|
repeatCount(repeatCount), downTime(downTime),
|
|
syntheticRepeat(false), interceptKeyResult(KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN),
|
|
interceptKeyWakeupTime(0) {
|
|
}
|
|
|
|
InputDispatcher::KeyEntry::~KeyEntry() {
|
|
}
|
|
|
|
void InputDispatcher::KeyEntry::appendDescription(String8& msg) const {
|
|
msg.appendFormat("KeyEvent(deviceId=%d, source=0x%08x, action=%d, "
|
|
"flags=0x%08x, keyCode=%d, scanCode=%d, metaState=0x%08x, "
|
|
"repeatCount=%d), policyFlags=0x%08x",
|
|
deviceId, source, action, flags, keyCode, scanCode, metaState,
|
|
repeatCount, policyFlags);
|
|
}
|
|
|
|
void InputDispatcher::KeyEntry::recycle() {
|
|
releaseInjectionState();
|
|
|
|
dispatchInProgress = false;
|
|
syntheticRepeat = false;
|
|
interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN;
|
|
interceptKeyWakeupTime = 0;
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::MotionEntry ---
|
|
|
|
InputDispatcher::MotionEntry::MotionEntry(nsecs_t eventTime,
|
|
int32_t deviceId, uint32_t source, uint32_t policyFlags, int32_t action, int32_t flags,
|
|
int32_t metaState, int32_t buttonState,
|
|
int32_t edgeFlags, float xPrecision, float yPrecision,
|
|
nsecs_t downTime, int32_t displayId, uint32_t pointerCount,
|
|
const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
|
|
float xOffset, float yOffset) :
|
|
EventEntry(TYPE_MOTION, eventTime, policyFlags),
|
|
eventTime(eventTime),
|
|
deviceId(deviceId), source(source), action(action), flags(flags),
|
|
metaState(metaState), buttonState(buttonState), edgeFlags(edgeFlags),
|
|
xPrecision(xPrecision), yPrecision(yPrecision),
|
|
downTime(downTime), displayId(displayId), pointerCount(pointerCount) {
|
|
for (uint32_t i = 0; i < pointerCount; i++) {
|
|
this->pointerProperties[i].copyFrom(pointerProperties[i]);
|
|
this->pointerCoords[i].copyFrom(pointerCoords[i]);
|
|
if (xOffset || yOffset) {
|
|
this->pointerCoords[i].applyOffset(xOffset, yOffset);
|
|
}
|
|
}
|
|
}
|
|
|
|
InputDispatcher::MotionEntry::~MotionEntry() {
|
|
}
|
|
|
|
void InputDispatcher::MotionEntry::appendDescription(String8& msg) const {
|
|
msg.appendFormat("MotionEvent(deviceId=%d, source=0x%08x, action=%d, "
|
|
"flags=0x%08x, metaState=0x%08x, buttonState=0x%08x, edgeFlags=0x%08x, "
|
|
"xPrecision=%.1f, yPrecision=%.1f, displayId=%d, pointers=[",
|
|
deviceId, source, action, flags, metaState, buttonState, edgeFlags,
|
|
xPrecision, yPrecision, displayId);
|
|
for (uint32_t i = 0; i < pointerCount; i++) {
|
|
if (i) {
|
|
msg.append(", ");
|
|
}
|
|
msg.appendFormat("%d: (%.1f, %.1f)", pointerProperties[i].id,
|
|
pointerCoords[i].getX(), pointerCoords[i].getY());
|
|
}
|
|
msg.appendFormat("]), policyFlags=0x%08x", policyFlags);
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::DispatchEntry ---
|
|
|
|
volatile int32_t InputDispatcher::DispatchEntry::sNextSeqAtomic;
|
|
|
|
InputDispatcher::DispatchEntry::DispatchEntry(EventEntry* eventEntry,
|
|
int32_t targetFlags, float xOffset, float yOffset, float scaleFactor) :
|
|
seq(nextSeq()),
|
|
eventEntry(eventEntry), targetFlags(targetFlags),
|
|
xOffset(xOffset), yOffset(yOffset), scaleFactor(scaleFactor),
|
|
deliveryTime(0), resolvedAction(0), resolvedFlags(0) {
|
|
eventEntry->refCount += 1;
|
|
}
|
|
|
|
InputDispatcher::DispatchEntry::~DispatchEntry() {
|
|
eventEntry->release();
|
|
}
|
|
|
|
uint32_t InputDispatcher::DispatchEntry::nextSeq() {
|
|
// Sequence number 0 is reserved and will never be returned.
|
|
uint32_t seq;
|
|
do {
|
|
seq = android_atomic_inc(&sNextSeqAtomic);
|
|
} while (!seq);
|
|
return seq;
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::InputState ---
|
|
|
|
InputDispatcher::InputState::InputState() {
|
|
}
|
|
|
|
InputDispatcher::InputState::~InputState() {
|
|
}
|
|
|
|
bool InputDispatcher::InputState::isNeutral() const {
|
|
return mKeyMementos.isEmpty() && mMotionMementos.isEmpty();
|
|
}
|
|
|
|
bool InputDispatcher::InputState::isHovering(int32_t deviceId, uint32_t source,
|
|
int32_t displayId) const {
|
|
for (size_t i = 0; i < mMotionMementos.size(); i++) {
|
|
const MotionMemento& memento = mMotionMementos.itemAt(i);
|
|
if (memento.deviceId == deviceId
|
|
&& memento.source == source
|
|
&& memento.displayId == displayId
|
|
&& memento.hovering) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool InputDispatcher::InputState::trackKey(const KeyEntry* entry,
|
|
int32_t action, int32_t flags) {
|
|
switch (action) {
|
|
case AKEY_EVENT_ACTION_UP: {
|
|
if (entry->flags & AKEY_EVENT_FLAG_FALLBACK) {
|
|
for (size_t i = 0; i < mFallbackKeys.size(); ) {
|
|
if (mFallbackKeys.valueAt(i) == entry->keyCode) {
|
|
mFallbackKeys.removeItemsAt(i);
|
|
} else {
|
|
i += 1;
|
|
}
|
|
}
|
|
}
|
|
ssize_t index = findKeyMemento(entry);
|
|
if (index >= 0) {
|
|
mKeyMementos.removeAt(index);
|
|
return true;
|
|
}
|
|
/* FIXME: We can't just drop the key up event because that prevents creating
|
|
* popup windows that are automatically shown when a key is held and then
|
|
* dismissed when the key is released. The problem is that the popup will
|
|
* not have received the original key down, so the key up will be considered
|
|
* to be inconsistent with its observed state. We could perhaps handle this
|
|
* by synthesizing a key down but that will cause other problems.
|
|
*
|
|
* So for now, allow inconsistent key up events to be dispatched.
|
|
*
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Dropping inconsistent key up event: deviceId=%d, source=%08x, "
|
|
"keyCode=%d, scanCode=%d",
|
|
entry->deviceId, entry->source, entry->keyCode, entry->scanCode);
|
|
#endif
|
|
return false;
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
case AKEY_EVENT_ACTION_DOWN: {
|
|
ssize_t index = findKeyMemento(entry);
|
|
if (index >= 0) {
|
|
mKeyMementos.removeAt(index);
|
|
}
|
|
addKeyMemento(entry, flags);
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::InputState::trackMotion(const MotionEntry* entry,
|
|
int32_t action, int32_t flags) {
|
|
int32_t actionMasked = action & AMOTION_EVENT_ACTION_MASK;
|
|
switch (actionMasked) {
|
|
case AMOTION_EVENT_ACTION_UP:
|
|
case AMOTION_EVENT_ACTION_CANCEL: {
|
|
ssize_t index = findMotionMemento(entry, false /*hovering*/);
|
|
if (index >= 0) {
|
|
mMotionMementos.removeAt(index);
|
|
return true;
|
|
}
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Dropping inconsistent motion up or cancel event: deviceId=%d, source=%08x, "
|
|
"actionMasked=%d",
|
|
entry->deviceId, entry->source, actionMasked);
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
case AMOTION_EVENT_ACTION_DOWN: {
|
|
ssize_t index = findMotionMemento(entry, false /*hovering*/);
|
|
if (index >= 0) {
|
|
mMotionMementos.removeAt(index);
|
|
}
|
|
addMotionMemento(entry, flags, false /*hovering*/);
|
|
return true;
|
|
}
|
|
|
|
case AMOTION_EVENT_ACTION_POINTER_UP:
|
|
case AMOTION_EVENT_ACTION_POINTER_DOWN:
|
|
case AMOTION_EVENT_ACTION_MOVE: {
|
|
if (entry->source & AINPUT_SOURCE_CLASS_NAVIGATION) {
|
|
// Trackballs can send MOVE events with a corresponding DOWN or UP. There's no need to
|
|
// generate cancellation events for these since they're based in relative rather than
|
|
// absolute units.
|
|
return true;
|
|
}
|
|
|
|
ssize_t index = findMotionMemento(entry, false /*hovering*/);
|
|
|
|
if (entry->source & AINPUT_SOURCE_CLASS_JOYSTICK) {
|
|
// Joysticks can send MOVE events without a corresponding DOWN or UP. Since all
|
|
// joystick axes are normalized to [-1, 1] we can trust that 0 means it's neutral. Any
|
|
// other value and we need to track the motion so we can send cancellation events for
|
|
// anything generating fallback events (e.g. DPad keys for joystick movements).
|
|
if (index >= 0) {
|
|
if (entry->pointerCoords[0].isEmpty()) {
|
|
mMotionMementos.removeAt(index);
|
|
} else {
|
|
MotionMemento& memento = mMotionMementos.editItemAt(index);
|
|
memento.setPointers(entry);
|
|
}
|
|
} else if (!entry->pointerCoords[0].isEmpty()) {
|
|
addMotionMemento(entry, flags, false /*hovering*/);
|
|
}
|
|
|
|
// Joysticks and trackballs can send MOVE events without corresponding DOWN or UP.
|
|
return true;
|
|
}
|
|
if (index >= 0) {
|
|
MotionMemento& memento = mMotionMementos.editItemAt(index);
|
|
memento.setPointers(entry);
|
|
return true;
|
|
}
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Dropping inconsistent motion pointer up/down or move event: "
|
|
"deviceId=%d, source=%08x, actionMasked=%d",
|
|
entry->deviceId, entry->source, actionMasked);
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
case AMOTION_EVENT_ACTION_HOVER_EXIT: {
|
|
ssize_t index = findMotionMemento(entry, true /*hovering*/);
|
|
if (index >= 0) {
|
|
mMotionMementos.removeAt(index);
|
|
return true;
|
|
}
|
|
#if DEBUG_OUTBOUND_EVENT_DETAILS
|
|
ALOGD("Dropping inconsistent motion hover exit event: deviceId=%d, source=%08x",
|
|
entry->deviceId, entry->source);
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
case AMOTION_EVENT_ACTION_HOVER_ENTER:
|
|
case AMOTION_EVENT_ACTION_HOVER_MOVE: {
|
|
ssize_t index = findMotionMemento(entry, true /*hovering*/);
|
|
if (index >= 0) {
|
|
mMotionMementos.removeAt(index);
|
|
}
|
|
addMotionMemento(entry, flags, true /*hovering*/);
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
ssize_t InputDispatcher::InputState::findKeyMemento(const KeyEntry* entry) const {
|
|
for (size_t i = 0; i < mKeyMementos.size(); i++) {
|
|
const KeyMemento& memento = mKeyMementos.itemAt(i);
|
|
if (memento.deviceId == entry->deviceId
|
|
&& memento.source == entry->source
|
|
&& memento.keyCode == entry->keyCode
|
|
&& memento.scanCode == entry->scanCode) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
ssize_t InputDispatcher::InputState::findMotionMemento(const MotionEntry* entry,
|
|
bool hovering) const {
|
|
for (size_t i = 0; i < mMotionMementos.size(); i++) {
|
|
const MotionMemento& memento = mMotionMementos.itemAt(i);
|
|
if (memento.deviceId == entry->deviceId
|
|
&& memento.source == entry->source
|
|
&& memento.displayId == entry->displayId
|
|
&& memento.hovering == hovering) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void InputDispatcher::InputState::addKeyMemento(const KeyEntry* entry, int32_t flags) {
|
|
mKeyMementos.push();
|
|
KeyMemento& memento = mKeyMementos.editTop();
|
|
memento.deviceId = entry->deviceId;
|
|
memento.source = entry->source;
|
|
memento.keyCode = entry->keyCode;
|
|
memento.scanCode = entry->scanCode;
|
|
memento.metaState = entry->metaState;
|
|
memento.flags = flags;
|
|
memento.downTime = entry->downTime;
|
|
memento.policyFlags = entry->policyFlags;
|
|
}
|
|
|
|
void InputDispatcher::InputState::addMotionMemento(const MotionEntry* entry,
|
|
int32_t flags, bool hovering) {
|
|
mMotionMementos.push();
|
|
MotionMemento& memento = mMotionMementos.editTop();
|
|
memento.deviceId = entry->deviceId;
|
|
memento.source = entry->source;
|
|
memento.flags = flags;
|
|
memento.xPrecision = entry->xPrecision;
|
|
memento.yPrecision = entry->yPrecision;
|
|
memento.downTime = entry->downTime;
|
|
memento.displayId = entry->displayId;
|
|
memento.setPointers(entry);
|
|
memento.hovering = hovering;
|
|
memento.policyFlags = entry->policyFlags;
|
|
}
|
|
|
|
void InputDispatcher::InputState::MotionMemento::setPointers(const MotionEntry* entry) {
|
|
pointerCount = entry->pointerCount;
|
|
for (uint32_t i = 0; i < entry->pointerCount; i++) {
|
|
pointerProperties[i].copyFrom(entry->pointerProperties[i]);
|
|
pointerCoords[i].copyFrom(entry->pointerCoords[i]);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::InputState::synthesizeCancelationEvents(nsecs_t currentTime,
|
|
Vector<EventEntry*>& outEvents, const CancelationOptions& options) {
|
|
for (size_t i = 0; i < mKeyMementos.size(); i++) {
|
|
const KeyMemento& memento = mKeyMementos.itemAt(i);
|
|
if (shouldCancelKey(memento, options)) {
|
|
outEvents.push(new KeyEntry(currentTime,
|
|
memento.deviceId, memento.source, memento.policyFlags,
|
|
AKEY_EVENT_ACTION_UP, memento.flags | AKEY_EVENT_FLAG_CANCELED,
|
|
memento.keyCode, memento.scanCode, memento.metaState, 0, memento.downTime));
|
|
}
|
|
}
|
|
|
|
for (size_t i = 0; i < mMotionMementos.size(); i++) {
|
|
const MotionMemento& memento = mMotionMementos.itemAt(i);
|
|
if (shouldCancelMotion(memento, options)) {
|
|
outEvents.push(new MotionEntry(currentTime,
|
|
memento.deviceId, memento.source, memento.policyFlags,
|
|
memento.hovering
|
|
? AMOTION_EVENT_ACTION_HOVER_EXIT
|
|
: AMOTION_EVENT_ACTION_CANCEL,
|
|
memento.flags, 0, 0, 0,
|
|
memento.xPrecision, memento.yPrecision, memento.downTime,
|
|
memento.displayId,
|
|
memento.pointerCount, memento.pointerProperties, memento.pointerCoords,
|
|
0, 0));
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::InputState::clear() {
|
|
mKeyMementos.clear();
|
|
mMotionMementos.clear();
|
|
mFallbackKeys.clear();
|
|
}
|
|
|
|
void InputDispatcher::InputState::copyPointerStateTo(InputState& other) const {
|
|
for (size_t i = 0; i < mMotionMementos.size(); i++) {
|
|
const MotionMemento& memento = mMotionMementos.itemAt(i);
|
|
if (memento.source & AINPUT_SOURCE_CLASS_POINTER) {
|
|
for (size_t j = 0; j < other.mMotionMementos.size(); ) {
|
|
const MotionMemento& otherMemento = other.mMotionMementos.itemAt(j);
|
|
if (memento.deviceId == otherMemento.deviceId
|
|
&& memento.source == otherMemento.source
|
|
&& memento.displayId == otherMemento.displayId) {
|
|
other.mMotionMementos.removeAt(j);
|
|
} else {
|
|
j += 1;
|
|
}
|
|
}
|
|
other.mMotionMementos.push(memento);
|
|
}
|
|
}
|
|
}
|
|
|
|
int32_t InputDispatcher::InputState::getFallbackKey(int32_t originalKeyCode) {
|
|
ssize_t index = mFallbackKeys.indexOfKey(originalKeyCode);
|
|
return index >= 0 ? mFallbackKeys.valueAt(index) : -1;
|
|
}
|
|
|
|
void InputDispatcher::InputState::setFallbackKey(int32_t originalKeyCode,
|
|
int32_t fallbackKeyCode) {
|
|
ssize_t index = mFallbackKeys.indexOfKey(originalKeyCode);
|
|
if (index >= 0) {
|
|
mFallbackKeys.replaceValueAt(index, fallbackKeyCode);
|
|
} else {
|
|
mFallbackKeys.add(originalKeyCode, fallbackKeyCode);
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::InputState::removeFallbackKey(int32_t originalKeyCode) {
|
|
mFallbackKeys.removeItem(originalKeyCode);
|
|
}
|
|
|
|
bool InputDispatcher::InputState::shouldCancelKey(const KeyMemento& memento,
|
|
const CancelationOptions& options) {
|
|
if (options.keyCode != -1 && memento.keyCode != options.keyCode) {
|
|
return false;
|
|
}
|
|
|
|
if (options.deviceId != -1 && memento.deviceId != options.deviceId) {
|
|
return false;
|
|
}
|
|
|
|
switch (options.mode) {
|
|
case CancelationOptions::CANCEL_ALL_EVENTS:
|
|
case CancelationOptions::CANCEL_NON_POINTER_EVENTS:
|
|
return true;
|
|
case CancelationOptions::CANCEL_FALLBACK_EVENTS:
|
|
return memento.flags & AKEY_EVENT_FLAG_FALLBACK;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool InputDispatcher::InputState::shouldCancelMotion(const MotionMemento& memento,
|
|
const CancelationOptions& options) {
|
|
if (options.deviceId != -1 && memento.deviceId != options.deviceId) {
|
|
return false;
|
|
}
|
|
|
|
switch (options.mode) {
|
|
case CancelationOptions::CANCEL_ALL_EVENTS:
|
|
return true;
|
|
case CancelationOptions::CANCEL_POINTER_EVENTS:
|
|
return memento.source & AINPUT_SOURCE_CLASS_POINTER;
|
|
case CancelationOptions::CANCEL_NON_POINTER_EVENTS:
|
|
return !(memento.source & AINPUT_SOURCE_CLASS_POINTER);
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::Connection ---
|
|
|
|
InputDispatcher::Connection::Connection(const sp<InputChannel>& inputChannel,
|
|
const sp<InputWindowHandle>& inputWindowHandle, bool monitor) :
|
|
status(STATUS_NORMAL), inputChannel(inputChannel), inputWindowHandle(inputWindowHandle),
|
|
monitor(monitor),
|
|
inputPublisher(inputChannel), inputPublisherBlocked(false) {
|
|
}
|
|
|
|
InputDispatcher::Connection::~Connection() {
|
|
}
|
|
|
|
const char* InputDispatcher::Connection::getWindowName() const {
|
|
if (inputWindowHandle != NULL) {
|
|
return inputWindowHandle->getName().string();
|
|
}
|
|
if (monitor) {
|
|
return "monitor";
|
|
}
|
|
return "?";
|
|
}
|
|
|
|
const char* InputDispatcher::Connection::getStatusLabel() const {
|
|
switch (status) {
|
|
case STATUS_NORMAL:
|
|
return "NORMAL";
|
|
|
|
case STATUS_BROKEN:
|
|
return "BROKEN";
|
|
|
|
case STATUS_ZOMBIE:
|
|
return "ZOMBIE";
|
|
|
|
default:
|
|
return "UNKNOWN";
|
|
}
|
|
}
|
|
|
|
InputDispatcher::DispatchEntry* InputDispatcher::Connection::findWaitQueueEntry(uint32_t seq) {
|
|
for (DispatchEntry* entry = waitQueue.head; entry != NULL; entry = entry->next) {
|
|
if (entry->seq == seq) {
|
|
return entry;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::CommandEntry ---
|
|
|
|
InputDispatcher::CommandEntry::CommandEntry(Command command) :
|
|
command(command), eventTime(0), keyEntry(NULL), userActivityEventType(0),
|
|
seq(0), handled(false) {
|
|
}
|
|
|
|
InputDispatcher::CommandEntry::~CommandEntry() {
|
|
}
|
|
|
|
|
|
// --- InputDispatcher::TouchState ---
|
|
|
|
InputDispatcher::TouchState::TouchState() :
|
|
down(false), split(false), deviceId(-1), source(0), displayId(-1) {
|
|
}
|
|
|
|
InputDispatcher::TouchState::~TouchState() {
|
|
}
|
|
|
|
void InputDispatcher::TouchState::reset() {
|
|
down = false;
|
|
split = false;
|
|
deviceId = -1;
|
|
source = 0;
|
|
displayId = -1;
|
|
windows.clear();
|
|
}
|
|
|
|
void InputDispatcher::TouchState::copyFrom(const TouchState& other) {
|
|
down = other.down;
|
|
split = other.split;
|
|
deviceId = other.deviceId;
|
|
source = other.source;
|
|
displayId = other.displayId;
|
|
windows = other.windows;
|
|
}
|
|
|
|
void InputDispatcher::TouchState::addOrUpdateWindow(const sp<InputWindowHandle>& windowHandle,
|
|
int32_t targetFlags, BitSet32 pointerIds) {
|
|
if (targetFlags & InputTarget::FLAG_SPLIT) {
|
|
split = true;
|
|
}
|
|
|
|
for (size_t i = 0; i < windows.size(); i++) {
|
|
TouchedWindow& touchedWindow = windows.editItemAt(i);
|
|
if (touchedWindow.windowHandle == windowHandle) {
|
|
touchedWindow.targetFlags |= targetFlags;
|
|
if (targetFlags & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT) {
|
|
touchedWindow.targetFlags &= ~InputTarget::FLAG_DISPATCH_AS_IS;
|
|
}
|
|
touchedWindow.pointerIds.value |= pointerIds.value;
|
|
return;
|
|
}
|
|
}
|
|
|
|
windows.push();
|
|
|
|
TouchedWindow& touchedWindow = windows.editTop();
|
|
touchedWindow.windowHandle = windowHandle;
|
|
touchedWindow.targetFlags = targetFlags;
|
|
touchedWindow.pointerIds = pointerIds;
|
|
}
|
|
|
|
void InputDispatcher::TouchState::removeWindow(const sp<InputWindowHandle>& windowHandle) {
|
|
for (size_t i = 0; i < windows.size(); i++) {
|
|
if (windows.itemAt(i).windowHandle == windowHandle) {
|
|
windows.removeAt(i);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputDispatcher::TouchState::filterNonAsIsTouchWindows() {
|
|
for (size_t i = 0 ; i < windows.size(); ) {
|
|
TouchedWindow& window = windows.editItemAt(i);
|
|
if (window.targetFlags & (InputTarget::FLAG_DISPATCH_AS_IS
|
|
| InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER)) {
|
|
window.targetFlags &= ~InputTarget::FLAG_DISPATCH_MASK;
|
|
window.targetFlags |= InputTarget::FLAG_DISPATCH_AS_IS;
|
|
i += 1;
|
|
} else {
|
|
windows.removeAt(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
sp<InputWindowHandle> InputDispatcher::TouchState::getFirstForegroundWindowHandle() const {
|
|
for (size_t i = 0; i < windows.size(); i++) {
|
|
const TouchedWindow& window = windows.itemAt(i);
|
|
if (window.targetFlags & InputTarget::FLAG_FOREGROUND) {
|
|
return window.windowHandle;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
bool InputDispatcher::TouchState::isSlippery() const {
|
|
// Must have exactly one foreground window.
|
|
bool haveSlipperyForegroundWindow = false;
|
|
for (size_t i = 0; i < windows.size(); i++) {
|
|
const TouchedWindow& window = windows.itemAt(i);
|
|
if (window.targetFlags & InputTarget::FLAG_FOREGROUND) {
|
|
if (haveSlipperyForegroundWindow
|
|
|| !(window.windowHandle->getInfo()->layoutParamsFlags
|
|
& InputWindowInfo::FLAG_SLIPPERY)) {
|
|
return false;
|
|
}
|
|
haveSlipperyForegroundWindow = true;
|
|
}
|
|
}
|
|
return haveSlipperyForegroundWindow;
|
|
}
|
|
|
|
|
|
// --- InputDispatcherThread ---
|
|
|
|
InputDispatcherThread::InputDispatcherThread(const sp<InputDispatcherInterface>& dispatcher) :
|
|
Thread(/*canCallJava*/ true), mDispatcher(dispatcher) {
|
|
}
|
|
|
|
InputDispatcherThread::~InputDispatcherThread() {
|
|
}
|
|
|
|
bool InputDispatcherThread::threadLoop() {
|
|
mDispatcher->dispatchOnce();
|
|
return true;
|
|
}
|
|
|
|
} // namespace android
|