NS_IMETHODIMP
nsXULTooltipListener::MouseMove(nsIDOMEvent* aMouseEvent)
{
if (!sShowTooltips)
return NS_OK;
// stash the coordinates of the event so that we can still get back to it from within the
// timer callback. On win32, we'll get a MouseMove event even when a popup goes away --
// even when the mouse doesn't change position! To get around this, we make sure the
// mouse has really moved before proceeding.
nsCOMPtr<nsIDOMMouseEvent> mouseEvent(do_QueryInterface(aMouseEvent));
PRInt32 newMouseX, newMouseY;
mouseEvent->GetScreenX(&newMouseX);
mouseEvent->GetScreenY(&newMouseY);
if (mMouseScreenX == newMouseX && mMouseScreenY == newMouseY)
return NS_OK;
mMouseScreenX = newMouseX;
mMouseScreenY = newMouseY;
mCachedMouseEvent = aMouseEvent;
nsCOMPtr<nsIDOMEventTarget> eventTarget;
aMouseEvent->GetCurrentTarget(getter_AddRefs(eventTarget));
nsCOMPtr<nsIContent> sourceContent = do_QueryInterface(eventTarget);
mSourceNode = do_GetWeakReference(sourceContent);
#ifdef MOZ_XUL
mIsSourceTree = sourceContent->Tag() == nsGkAtoms::treechildren;
if (mIsSourceTree)
CheckTreeBodyMove(mouseEvent);
#endif
// as the mouse moves, we want to make sure we reset the timer to show it,
// so that the delay is from when the mouse stops moving, not when it enters
// the node.
KillTooltipTimer();
// If the mouse moves while the tooltip is up, don't do anything. We make it
// go away only if it times out or leaves the target node. If nothing is
// showing, though, we have to do the work.
nsCOMPtr<nsIContent> currentTooltip = do_QueryReferent(mCurrentTooltip);
if (!currentTooltip) {
mTooltipTimer = do_CreateInstance("@mozilla.org/timer;1");
if (mTooltipTimer) {
aMouseEvent->GetTarget(getter_AddRefs(eventTarget));
nsCOMPtr<nsIDOMNode> targetNode = do_QueryInterface(eventTarget);
mTargetNode = do_GetWeakReference(targetNode);
if (targetNode) {
nsresult rv = mTooltipTimer->InitWithFuncCallback(sTooltipCallback, this,
kTooltipShowTime, nsITimer::TYPE_ONE_SHOT);
if (NS_FAILED(rv)) {
mTargetNode = nsnull;
mSourceNode = nsnull;
}
}
}
}
return NS_OK;
}
nsresult
nsXULTooltipListener::DestroyTooltip()
{
nsCOMPtr<nsIDOMMouseListener> kungFuDeathGrip(this);
nsCOMPtr<nsIContent> currentTooltip = do_QueryReferent(mCurrentTooltip);
if (currentTooltip) {
// clear out the tooltip node on the document
nsCOMPtr<nsIDocument> doc = currentTooltip->GetDocument();
if (doc) {
nsCOMPtr<nsIDOMXULDocument> xulDoc(do_QueryInterface(doc));
if (xulDoc)
xulDoc->SetTooltipNode(nsnull);
// remove the mousedown and keydown listener from document
nsCOMPtr<nsIDOMEventTarget> evtTarget(do_QueryInterface(doc));
evtTarget->RemoveEventListener(NS_LITERAL_STRING("DOMMouseScroll"), (nsIDOMMouseListener*)this, PR_TRUE);
evtTarget->RemoveEventListener(NS_LITERAL_STRING("mousedown"), (nsIDOMMouseListener*)this, PR_TRUE);
evtTarget->RemoveEventListener(NS_LITERAL_STRING("mouseup"), (nsIDOMMouseListener*)this, PR_TRUE);
evtTarget->RemoveEventListener(NS_LITERAL_STRING("keydown"), (nsIDOMMouseListener*)this, PR_TRUE);
}
// remove the popuphidden listener from tooltip
nsCOMPtr<nsIDOMEventTarget> evtTarget(do_QueryInterface(currentTooltip));
// release tooltip before removing listener to prevent our destructor from
// being called recursively (bug 120863)
mCurrentTooltip = nsnull;
evtTarget->RemoveEventListener(NS_LITERAL_STRING("popuphiding"), (nsIDOMMouseListener*)this, PR_FALSE);
}
// kill any ongoing timers
KillTooltipTimer();
mSourceNode = nsnull;
#ifdef MOZ_XUL
mLastTreeCol = nsnull;
#endif
if (mAutoHideTimer) {
mAutoHideTimer->Cancel();
mAutoHideTimer = nsnull;
}
return NS_OK;
}
void xxxResetTooltip(PTOOLTIPWND pttwnd)
{
KillTooltipTimer(pttwnd);
CheckLock(pttwnd);
if (TestWF(pttwnd, WFVISIBLE)) {
PWND spwndMessage;
TL tlpwnd;
xxxSetWindowPos((PWND)pttwnd, NULL, 0, 0, 0, 0, SWP_NOSIZE |
SWP_NOMOVE | SWP_HIDEWINDOW | SWP_NOACTIVATE | SWP_NOZORDER);
spwndMessage = PWNDMESSAGE(pttwnd);
ThreadLockAlways(spwndMessage, &tlpwnd);
xxxSetParent((PWND)pttwnd, spwndMessage);
ThreadUnlock(&tlpwnd);
}
ZeroTooltip(pttwnd);
pttwnd->head.rpdesk->dwDTFlags &= ~DF_TOOLTIP;
}
/***************************************************************************\
* SetTooltipTimer
*
\***************************************************************************/
void SetTooltipTimer (PTOOLTIPWND pttwnd, UINT uTID, UINT uDelay)
{
KillTooltipTimer(pttwnd);
pttwnd->uTID = uTID;
InternalSetTimer((PWND)pttwnd, uTID, uDelay, NULL, 0);
}
