JBoolean
JXApplication::HandleOneBusyEvent
(
const JBoolean origAllowSleep
)
{
itsHadBlockingWindowFlag = kJFalse;
UpdateCurrentTime();
JBoolean cancelRequest = kJFalse;
JPtrArrayIterator<JXDisplay> iter(itsDisplayList);
JXDisplay* display;
JIndex displayIndex = 0;
while (iter.Next(&display))
{
displayIndex++;
itsCurrDisplayIndex = displayIndex; // itsCurrDisplayIndex might change during event
if (XPending(*display) != 0)
{
// look for update events
XEvent xEvent;
if (XCheckIfEvent(*display, &xEvent, GetNextBusyEvent, NULL))
{
display->HandleEvent(xEvent, itsCurrentTime);
}
// discard mouse and keyboard events
DiscardEventInfo discardInfo(display, NULL);
while (XCheckIfEvent(*display, &xEvent, DiscardNextEvent,
reinterpret_cast<char*>(&discardInfo)))
{
// Look for key press cancel
if (xEvent.type == KeyPress)
{
JCharacter buffer[10];
KeySym keySym;
JSize charCount =
XLookupString(const_cast<XKeyEvent*>(&(xEvent.xkey)), buffer, 10, &keySym, NULL);
if (keySym == XK_Escape)
{
cancelRequest = kJTrue;
}
}
}
}
{
// Do display idle but don't allow it to dispatch the mouse
// as we are likely to have the busy cursor currently displayed
JXWindow* container = NULL;
display->GetMouseContainer(&container);
display->SetMouseContainer(NULL);
display->Idle(itsCurrentTime);
display->SetMouseContainer(container);
}
}
// Perform permanent & urgent tasks
//PerformPermanentTasks();
//PerformUrgentTasks();
itsHadBlockingWindowFlag = kJTrue;
return cancelRequest;
}
JBoolean
JXApplication::HandleOneEventForWindow
(
JXWindow* window,
const JBoolean origAllowSleep
)
{
const JBoolean origHadBlockingWindowFlag = itsHadBlockingWindowFlag;
itsHasBlockingWindowFlag = kJTrue;
itsHadBlockingWindowFlag = kJFalse; // req'd by JXWindow
if (itsIdleTaskStack->IsEmpty())
{
PushIdleTaskStack();
}
UpdateCurrentTime();
const JBoolean allowSleep =
JI2B(origAllowSleep && HandleCustomEventWhileBlocking());
UpdateCurrentTime();
JBoolean windowHasEvents = kJFalse;
const JXDisplay* uiDisplay = window->GetDisplay();
Window eventWindow [ kEventWindowCount ];
eventWindow[0] = window->GetXWindow();
JPtrArrayIterator<JXDisplay> iter(itsDisplayList);
JXDisplay* display;
JIndex displayIndex = 0;
while (iter.Next(&display))
{
JXMenuManager* menuMgr = display->GetMenuManager();
if (!origHadBlockingWindowFlag)
{
menuMgr->CloseCurrentMenus();
}
JXWindow* mouseContainer;
displayIndex++;
itsCurrDisplayIndex = displayIndex; // itsCurrDisplayIndex might change during event
if (XPending(*display) != 0)
{
// get mouse and keyboard grabbers -- for menus inside blocking window
eventWindow[1] = eventWindow[2] = None;
JXWindow* grabber;
if (display == uiDisplay && display->GetMouseGrabber(&grabber) &&
menuMgr->IsMenuForWindow(grabber, window))
{
eventWindow[1] = grabber->GetXWindow();
}
if (display == uiDisplay && display->GetKeyboardGrabber(&grabber) &&
menuMgr->IsMenuForWindow(grabber, window))
{
eventWindow[2] = grabber->GetXWindow();
}
// process one event
XEvent xEvent;
if (display == uiDisplay &&
XCheckIfEvent(*display, &xEvent, GetNextWindowEvent,
reinterpret_cast<char*>(eventWindow)))
{
windowHasEvents = kJTrue;
if (xEvent.type != MotionNotify)
{
itsLastIdleTime = itsCurrentTime;
}
display->HandleEvent(xEvent, itsCurrentTime);
}
else if (XCheckIfEvent(*display, &xEvent, GetNextBkgdEvent, NULL))
{
display->HandleEvent(xEvent, itsCurrentTime);
}
else if (display == uiDisplay &&
display->GetMouseContainer(&mouseContainer) &&
mouseContainer == window)
{
display->Idle(itsCurrentTime);
}
else
{
display->Update();
}
// discard mouse and keyboard events
DiscardEventInfo discardInfo(display, NULL);
if (display == uiDisplay)
{
discardInfo.eventWindow = eventWindow;
}
while (XCheckIfEvent(*display, &xEvent, DiscardNextEvent,
reinterpret_cast<char*>(&discardInfo)))
{ };
}
else if (display == uiDisplay &&
display->GetMouseContainer(&mouseContainer) &&
mouseContainer == window)
{
display->Idle(itsCurrentTime);
}
else
{
display->Update();
}
}
PerformTasks(windowHasEvents, allowSleep);
itsHasBlockingWindowFlag = kJFalse;
itsHadBlockingWindowFlag = kJTrue;
return windowHasEvents;
}
JBoolean
JXApplication::HandleOneEventForWindow
(
JXWindow* window,
const JBoolean origAllowSleep,
const JBoolean do_tasks
)
{
const JBoolean origHadBlockingWindowFlag = itsHadBlockingWindowFlag;
itsHasBlockingWindowFlag = kJTrue;
itsHadBlockingWindowFlag = kJFalse; // req'd by JXWindow
if (itsIdleTaskStack->IsEmpty())
{
PushIdleTaskStack();
}
UpdateCurrentTime();
const JBoolean allowSleep =
JI2B(origAllowSleep && HandleCustomEventWhileBlocking());
UpdateCurrentTime();
JBoolean windowHasEvents = kJFalse;
const JXDisplay* uiDisplay = window->GetDisplay();
Window eventWindow [ kEventWindowCount ];
eventWindow[0] = window->GetXWindow();
JPtrArrayIterator<JXDisplay> iter(itsDisplayList);
JXDisplay* display;
JIndex displayIndex = 0;
while (iter.Next(&display))
{
JXMenuManager* menuMgr = display->GetMenuManager();
if (!origHadBlockingWindowFlag)
{
menuMgr->CloseCurrentMenus();
}
JXWindow* mouseContainer;
displayIndex++;
itsCurrDisplayIndex = displayIndex; // itsCurrDisplayIndex might change during event
if (XPending(*display) != 0)
{
// get mouse and keyboard grabbers -- for menus inside blocking window
eventWindow[1] = eventWindow[2] = None;
JXWindow* grabber;
if (display == uiDisplay && display->GetMouseGrabber(&grabber) &&
menuMgr->IsMenuForWindow(grabber, window))
{
eventWindow[1] = grabber->GetXWindow();
}
if (display == uiDisplay && display->GetKeyboardGrabber(&grabber) &&
menuMgr->IsMenuForWindow(grabber, window))
{
eventWindow[2] = grabber->GetXWindow();
}
// process one event
XEvent xEvent;
if (display == uiDisplay &&
XCheckIfEvent(*display, &xEvent, GetNextWindowEvent,
reinterpret_cast<char*>(eventWindow)))
{
windowHasEvents = kJTrue;
if (xEvent.type != MotionNotify)
{
itsLastIdleTime = itsCurrentTime;
}
display->HandleEvent(xEvent, itsCurrentTime);
}
#if 0
// cd: background event check is now done as part of window event check
// to give better update responsiveness when dragging a window
else if (XCheckIfEvent(*display, &xEvent, GetNextBkgdEvent, NULL))
{
display->HandleEvent(xEvent, itsCurrentTime);
}
#endif
else if (display == uiDisplay &&
display->GetMouseContainer(&mouseContainer) &&
mouseContainer == window)
{
display->Idle(itsCurrentTime);
}
else
{
display->Update();
}
// discard mouse and keyboard events
DiscardEventInfo discardInfo(display, NULL);
if (display == uiDisplay)
{
discardInfo.eventWindow = eventWindow;
}
while (XCheckIfEvent(*display, &xEvent, DiscardNextEvent,
reinterpret_cast<char*>(&discardInfo)))
{ };
}
else if (display == uiDisplay &&
display->GetMouseContainer(&mouseContainer) &&
mouseContainer == window)
{
display->Idle(itsCurrentTime);
}
else
{
display->Update();
}
}
// Perform idle tasks when we don't receive any events and
// during long intervals of "mouse moved".
if (do_tasks)
{
if (!windowHasEvents)
{
PerformPermanentTasks();
PerformIdleTasks();
itsLastIdleTime = itsCurrentTime;
PerformUrgentTasks();
if (allowSleep)
{
JWait(itsMaxSleepTime / 1000.0);
}
}
else if (windowHasEvents &&
itsCurrentTime - itsLastIdleTime > itsMaxSleepTime)
{
PerformPermanentTasks();
PerformIdleTasks();
itsLastIdleTime = itsCurrentTime;
PerformUrgentTasks();
}
else
{
PerformPermanentTasks();
PerformUrgentTasks();
}
}
itsHasBlockingWindowFlag = kJFalse;
itsHadBlockingWindowFlag = kJTrue;
return windowHasEvents;
}