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Update input-event handing to Quartz-taps on OS X

Browse source 
Created by mthiel
Issue #238
This commit is contained in:
syed.amer@gilani.eu 2009-11-01 19:15:10 +00:00
parent 985648a95f
commit 9515338c75
4 changed files with 203 additions and 223 deletions
Download patch file Download diff file Expand all files Collapse all files

309
lib/platform/COSXScreen.cpp
View file

@ -85,42 +85,13 @@ COSXScreen::COSXScreen(bool isPrimary) :
updateScreenShape(m_displayID, 0);
m_screensaver = new COSXScreenSaver(getEventTarget());
m_keyState = new COSXKeyState();
if (m_isPrimary) {
// 1x1 window (to minimze the back buffer allocated for this
// window.
Rect bounds = { 100, 100, 101, 101 };
// m_hiddenWindow is a window meant to let us get mouse moves
// when the focus is on another computer. If you get your event
// from the application event target you'll get every mouse
// moves. On the other hand the Window event target will only
// get events when the mouse moves over the window.
// The ignoreClicks attributes makes it impossible for the
// user to click on our invisible window.
CreateNewWindow(kUtilityWindowClass,
kWindowNoShadowAttribute |
kWindowIgnoreClicksAttribute |
kWindowNoActivatesAttribute,
&bounds, &m_hiddenWindow);
// Make it invisible
SetWindowAlpha(m_hiddenWindow, 0);
ShowWindow(m_hiddenWindow);
// m_userInputWindow is a window meant to let us get mouse moves
// when the focus is on this computer.
Rect inputBounds = { 100, 100, 200, 200 };
CreateNewWindow(kUtilityWindowClass,
kWindowNoShadowAttribute |
kWindowOpaqueForEventsAttribute |
kWindowStandardHandlerAttribute,
&inputBounds, &m_userInputWindow);
SetWindowAlpha(m_userInputWindow, 0);
}
if (m_isPrimary) {
if (!AXAPIEnabled()) {
LOG((CLOG_ERR "Synergy server requires accessibility API enabled. Please check the option for \"Enable access for assistive devices\" in the Universal Access System Preferences panel. Unintentional key-replication will occur until this is fixed."));
}
}
// install display manager notification handler
CGDisplayRegisterReconfigurationCallback(displayReconfigurationCallback, this);
@ -155,15 +126,6 @@ COSXScreen::COSXScreen(bool isPrimary) :
}
CGDisplayRemoveReconfigurationCallback(displayReconfigurationCallback, this);
if (m_hiddenWindow) {
CFRelease(m_hiddenWindow);
m_hiddenWindow = NULL;
}
if (m_userInputWindow) {
CFRelease(m_userInputWindow);
m_userInputWindow = NULL;
}
delete m_keyState;
delete m_screensaver;
throw;
@ -209,15 +171,6 @@ COSXScreen::~COSXScreen()
RemoveEventHandler(m_switchEventHandlerRef);
CGDisplayRemoveReconfigurationCallback(displayReconfigurationCallback, this);
if (m_hiddenWindow) {
CFRelease(m_hiddenWindow);
m_hiddenWindow = NULL;
}
if (m_userInputWindow) {
CFRelease(m_userInputWindow);
m_userInputWindow = NULL;
}
delete m_keyState;
delete m_screensaver;
@ -272,7 +225,7 @@ COSXScreen::warpCursor(SInt32 x, SInt32 y)
pos.x = x;
pos.y = y;
CGWarpMouseCursorPosition(pos);
// save new cursor position
m_xCursor = x;
m_yCursor = y;
@ -544,6 +497,20 @@ COSXScreen::enable()
if (m_isPrimary) {
// FIXME -- start watching jump zones
// kCGEventTapOptionDefault = 0x00000000 (Missing in 10.4, so specified literally)
m_eventTapPort=CGEventTapCreate(kCGHIDEventTap, kCGHIDEventTap, 0,
kCGEventMaskForAllEvents,
handleCGInputEvent,
this);
if(!m_eventTapPort) {
LOG((CLOG_ERR "Failed to create quartz event tap."));
}
m_eventTapRLSR=CFMachPortCreateRunLoopSource(kCFAllocatorDefault, m_eventTapPort, 0);
if(!m_eventTapRLSR) {
LOG((CLOG_ERR "Failed to create a CFRunLoopSourceRef for the quartz event tap."));
}
CFRunLoopAddSource(CFRunLoopGetCurrent(), m_eventTapRLSR, kCFRunLoopDefaultMode);
}
else {
// FIXME -- prevent system from entering power save mode
@ -566,6 +533,15 @@ COSXScreen::disable()
{
if (m_isPrimary) {
// FIXME -- stop watching jump zones, stop capturing input
if(m_eventTapRLSR) {
CFRelease(m_eventTapRLSR);
m_eventTapRLSR=NULL;
}
if(m_eventTapPort) {
CFRelease(m_eventTapPort);
m_eventTapPort=NULL;
}
}
else {
// show cursor
@ -595,14 +571,8 @@ void
COSXScreen::enter()
{
if (m_isPrimary) {
// stop capturing input, watch jump zones
HideWindow( m_userInputWindow );
ShowWindow( m_hiddenWindow );
SetMouseCoalescingEnabled(true, NULL);
CGSetLocalEventsSuppressionInterval(0.0);
// enable global hotkeys
//setGlobalHotKeysEnabled(true);
}
@ -639,20 +609,12 @@ COSXScreen::leave()
if (m_isPrimary) {
// warp to center
warpCursor(m_xCenter, m_yCenter);
// capture events
HideWindow(m_hiddenWindow);
ShowWindow(m_userInputWindow);
RepositionWindow(m_userInputWindow,
m_userInputWindow, kWindowCenterOnMainScreen);
SetUserFocusWindow(m_userInputWindow);
// The OS will coalesce some events if they are similar enough in a
// short period of time this is bad for us since we need every event
// to send it over to other machines. So disable it.
SetMouseCoalescingEnabled(false, NULL);
// This used to be necessary to get smooth mouse motion on other screens,
// but now is just to avoid a hesitating cursor when transitioning to
// the primary (this) screen.
CGSetLocalEventsSuppressionInterval(0.0001);
// disable global hotkeys
//setGlobalHotKeysEnabled(false);
}
@ -796,79 +758,6 @@ COSXScreen::handleSystemEvent(const CEvent& event, void*)
switch (eventClass) {
case kEventClassMouse:
switch (GetEventKind(*carbonEvent)) {
case kEventMouseDown:
{
UInt16 myButton;
GetEventParameter(*carbonEvent,
kEventParamMouseButton,
typeMouseButton,
NULL,
sizeof(myButton),
NULL,
&myButton);
onMouseButton(true, myButton);
break;
}
case kEventMouseUp:
{
UInt16 myButton;
GetEventParameter(*carbonEvent,
kEventParamMouseButton,
typeMouseButton,
NULL,
sizeof(myButton),
NULL,
&myButton);
onMouseButton(false, myButton);
break;
}
case kEventMouseDragged:
case kEventMouseMoved:
{
HIPoint point;
GetEventParameter(*carbonEvent,
kEventParamMouseLocation,
typeHIPoint,
NULL,
sizeof(point),
NULL,
&point);
onMouseMove((SInt32)point.x, (SInt32)point.y);
break;
}
case kEventMouseWheelMoved:
{
EventMouseWheelAxis axis;
SInt32 delta;
GetEventParameter(*carbonEvent,
kEventParamMouseWheelAxis,
typeMouseWheelAxis,
NULL,
sizeof(axis),
NULL,
&axis);
if (axis == kEventMouseWheelAxisX ||
axis == kEventMouseWheelAxisY) {
GetEventParameter(*carbonEvent,
kEventParamMouseWheelDelta,
typeLongInteger,
NULL,
sizeof(delta),
NULL,
&delta);
if (axis == kEventMouseWheelAxisX) {
onMouseWheel(-mapScrollWheelToSynergy((SInt32)delta), 0);
}
else {
onMouseWheel(0, mapScrollWheelToSynergy((SInt32)delta));
}
}
break;
}
case kSynergyEventMouseScroll:
{
OSStatus r;
@ -906,22 +795,15 @@ COSXScreen::handleSystemEvent(const CEvent& event, void*)
break;
case kEventClassKeyboard:
switch (GetEventKind(*carbonEvent)) {
case kEventRawKeyUp:
case kEventRawKeyDown:
case kEventRawKeyRepeat:
case kEventRawKeyModifiersChanged:
onKey(*carbonEvent);
switch (GetEventKind(*carbonEvent)) {
case kEventHotKeyPressed:
case kEventHotKeyReleased:
onHotKey(*carbonEvent);
break;
}
break;
case kEventHotKeyPressed:
case kEventHotKeyReleased:
onHotKey(*carbonEvent);
break;
}
break;
case kEventClassWindow:
SendEventToWindow(*carbonEvent, m_userInputWindow);
switch (GetEventKind(*carbonEvent)) {
@ -1071,22 +953,17 @@ COSXScreen::displayReconfigurationCallback(CGDirectDisplayID displayID, CGDispla
}
bool
COSXScreen::onKey(EventRef event)
COSXScreen::onKey(CGEventRef event)
{
UInt32 eventKind = GetEventKind(event);
CGEventType eventKind = CGEventGetType(event);
// get the key and active modifiers
UInt32 virtualKey, macMask;
GetEventParameter(event, kEventParamKeyCode, typeUInt32,
NULL, sizeof(virtualKey), NULL, &virtualKey);
GetEventParameter(event, kEventParamKeyModifiers, typeUInt32,
NULL, sizeof(macMask), NULL, &macMask);
UInt32 virtualKey = CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode);
CGEventFlags macMask = CGEventGetFlags(event);
LOG((CLOG_DEBUG1 "event: Key event kind: %d, keycode=%d", eventKind, virtualKey));
// sadly, OS X doesn't report the virtualKey for modifier keys.
// virtualKey will be zero for modifier keys. since that's not good
// enough we'll have to figure out what the key was.
if (virtualKey == 0 && eventKind == kEventRawKeyModifiersChanged) {
// Special handling to track state of modifiers
if (eventKind == kCGEventFlagsChanged) {
// get old and new modifier state
KeyModifierMask oldMask = getActiveModifiers();
KeyModifierMask newMask = m_keyState->mapModifiersFromOSX(macMask);
@ -1126,17 +1003,19 @@ COSXScreen::onKey(EventRef event)
// so we check for a key/modifier match in our hot key map.
if (!m_isOnScreen) {
HotKeyToIDMap::const_iterator i =
m_hotKeyToIDMap.find(CHotKeyItem(virtualKey, macMask & 0xff00u));
m_hotKeyToIDMap.find(CHotKeyItem(virtualKey,
m_keyState->mapModifiersToCarbon(macMask)
& 0xff00u));
if (i != m_hotKeyToIDMap.end()) {
UInt32 id = i->second;
// determine event type
CEvent::Type type;
UInt32 eventKind = GetEventKind(event);
if (eventKind == kEventRawKeyDown) {
//UInt32 eventKind = GetEventKind(event);
if (eventKind == kCGEventKeyDown) {
type = getHotKeyDownEvent();
}
else if (eventKind == kEventRawKeyUp) {
else if (eventKind == kCGEventKeyUp) {
type = getHotKeyUpEvent();
}
else {
@ -1151,9 +1030,9 @@ COSXScreen::onKey(EventRef event)
}
// decode event type
bool down = (eventKind == kEventRawKeyDown);
bool up = (eventKind == kEventRawKeyUp);
bool isRepeat = (eventKind == kEventRawKeyRepeat);
bool down = (eventKind == kCGEventKeyDown);
bool up = (eventKind == kCGEventKeyUp);
bool isRepeat = (CGEventGetIntegerValueField(event, kCGKeyboardEventAutorepeat) == 1);
// map event to keys
KeyModifierMask mask;
@ -1681,3 +1560,73 @@ COSXScreen::CHotKeyItem::operator<(const CHotKeyItem& x) const
return (m_keycode < x.m_keycode ||
(m_keycode == x.m_keycode && m_mask < x.m_mask));
}
// Quartz event tap support
CGEventRef
COSXScreen::handleCGInputEvent(CGEventTapProxy proxy,
CGEventType type,
CGEventRef event,
void* refcon)
{
COSXScreen* screen = (COSXScreen*)refcon;
CGPoint pos;
switch(type) {
case kCGEventLeftMouseDown:
case kCGEventRightMouseDown:
case kCGEventOtherMouseDown:
screen->onMouseButton(true, CGEventGetIntegerValueField(event, kCGMouseEventButtonNumber) + 1);
break;
case kCGEventLeftMouseUp:
case kCGEventRightMouseUp:
case kCGEventOtherMouseUp:
screen->onMouseButton(false, CGEventGetIntegerValueField(event, kCGMouseEventButtonNumber) + 1);
break;
case kCGEventMouseMoved:
case kCGEventLeftMouseDragged:
case kCGEventRightMouseDragged:
case kCGEventOtherMouseDragged:
pos = CGEventGetLocation(event);
screen->onMouseMove(pos.x, pos.y);
// The system ignores our cursor-centering calls if
// we don't return the event. This should be harmless,
// but might register as slight movement to other apps
// on the system. It hasn't been a problem before, though.
return event;
break;
case kCGEventScrollWheel:
screen->onMouseWheel(screen->mapScrollWheelToSynergy(
CGEventGetIntegerValueField(event, kCGScrollWheelEventDeltaAxis2)),
screen->mapScrollWheelToSynergy(
CGEventGetIntegerValueField(event, kCGScrollWheelEventDeltaAxis1)));
break;
case kCGEventKeyDown:
case kCGEventKeyUp:
case kCGEventFlagsChanged:
screen->onKey(event);
break;
case kCGEventTapDisabledByTimeout:
// Re-enable our event-tap
CGEventTapEnable(screen->m_eventTapPort, true);
LOG((CLOG_NOTE "Quartz Event tap was disabled by timeout. Re-enabling."));
break;
case kCGEventTapDisabledByUserInput:
LOG((CLOG_ERR "Quartz Event tap was disabled by user input!"));
break;
case NX_NULLEVENT:
break;
case NX_SYSDEFINED:
// Unknown, forward it
return event;
break;
default:
LOG((CLOG_NOTE "Unknown Quartz Event type: 0x%02x", type));
}
if(screen->m_isOnScreen) {
return event;
} else {
return NULL;
}
}