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339051 Embedding and plugin users restrict the ability to let the system run the event loop. Always receive and dispatch events manually. Carbon. r=josh sr=darin

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This commit is contained in:
mark%moxienet.com 2006-05-26 18:12:46 +00:00
parent 2b3f76808f
commit 78602d6e0e
1 changed files with 28 additions and 16 deletions
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44
widget/src/mac/nsAppShell.cpp
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@ -53,6 +53,11 @@ extern "C" {
int NSApplicationLoad();
}
enum {
kEventClassMoz = 'MOZZ',
kEventMozNull = 0,
};
// nsAppShell implementation
nsAppShell::nsAppShell()
@ -151,27 +156,25 @@ PRBool
nsAppShell::ProcessNextNativeEvent(PRBool aMayWait)
{
PRBool eventProcessed = PR_FALSE;
PRBool wasRunningEventLoop = mRunningEventLoop;
if (!aMayWait) {
// Only process a single event.
mRunningEventLoop = aMayWait;
EventTimeout waitUntil = kEventDurationNoWait;
if (aMayWait)
waitUntil = kEventDurationForever;
do {
EventRef carbonEvent;
OSStatus err = ::ReceiveNextEvent(0, nsnull, kEventDurationNoWait, PR_TRUE,
OSStatus err = ::ReceiveNextEvent(0, nsnull, waitUntil, PR_TRUE,
&carbonEvent);
if (err == noErr && carbonEvent) {
if (err == noErr) {
::SendEventToEventTarget(carbonEvent, ::GetEventDispatcherTarget());
::ReleaseEvent(carbonEvent);
eventProcessed = PR_TRUE;
}
}
else {
PRBool prevVal = mRunningEventLoop;
mRunningEventLoop = PR_TRUE;
// Run the loop until interrupted by ::QuitApplicationEventLoop().
::RunApplicationEventLoop();
mRunningEventLoop = prevVal;
} while (mRunningEventLoop);
eventProcessed = PR_TRUE;
}
mRunningEventLoop = wasRunningEventLoop;
return eventProcessed;
}
@ -192,9 +195,18 @@ nsAppShell::ProcessGeckoEvents(void* aInfo)
nsAppShell* self = NS_STATIC_CAST(nsAppShell*, aInfo);
if (self->mRunningEventLoop) {
// We own the run loop. Interrupt it. It will be started again later
// (unless exiting) by nsBaseAppShell. Trust me, I'm a doctor.
::QuitApplicationEventLoop();
self->mRunningEventLoop = PR_FALSE;
// The run loop is sleeping. ::ReceiveNextEvent() won't return until
// it's given a reason to wake up. Awaken it by posting a bogus event.
EventRef bogusEvent;
OSStatus err = ::CreateEvent(nsnull, kEventClassMoz, kEventMozNull, 0,
kEventAttributeNone, &bogusEvent);
if (err == noErr) {
::PostEventToQueue(::GetMainEventQueue(), bogusEvent,
kEventPriorityStandard);
::ReleaseEvent(bogusEvent);
}
}
self->NativeEventCallback();