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prevent calls to setContent prompted by tipAboutToShow called from showToolTip from messing around with the tip based on the current widget

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BUG:194974

svn path=/trunk/KDE/kdelibs/; revision=976790
This commit is contained in:
Aaron J. Seigo 2009-06-02 17:12:35 +00:00
parent 7be6cf3dfb
commit 980918d1cd
1 changed files with 23 additions and 9 deletions
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32
tooltipmanager.cpp
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@ -54,8 +54,9 @@ namespace Plasma
class ToolTipManagerPrivate
{
public :
ToolTipManagerPrivate()
: currentWidget(0),
ToolTipManagerPrivate(ToolTipManager *manager)
: q(manager),
currentWidget(0),
showTimer(0),
hideTimer(0),
tipWidget(new ToolTip(0)),
@ -84,6 +85,7 @@ public :
void clearTips();
void doDelayedHide();
ToolTipManager *q;
QGraphicsWidget *currentWidget;
QTimer *showTimer;
QTimer *hideTimer;
@ -112,7 +114,8 @@ ToolTipManager *ToolTipManager::self()
ToolTipManager::ToolTipManager(QObject *parent)
: QObject(parent),
d(new ToolTipManagerPrivate)
d(new ToolTipManagerPrivate(this)),
m_corona(0)
{
d->showTimer = new QTimer(this);
d->showTimer->setSingleShot(true);
@ -196,12 +199,12 @@ void ToolTipManager::unregisterWidget(QGraphicsWidget *widget)
void ToolTipManager::setContent(QGraphicsWidget *widget, const ToolTipContent &data)
{
if (d->state == Deactivated) {
if (d->state == Deactivated || !widget) {
return;
}
registerWidget(widget);
d->tooltips[widget] = data;
d->tooltips.insert(widget, data);
if (d->currentWidget == widget) {
if (data.isEmpty()) {
@ -218,7 +221,9 @@ void ToolTipManager::setContent(QGraphicsWidget *widget, const ToolTipContent &d
d->tipWidget->setContent(widget, data);
d->tipWidget->prepareShowing();
d->tipWidget->moveTo(m_corona->popupPosition(d->currentWidget, d->tipWidget->size()));
if (m_corona) {
d->tipWidget->moveTo(m_corona->popupPosition(widget, d->tipWidget->size()));
}
}
}
@ -267,7 +272,7 @@ void ToolTipManagerPrivate::onWidgetDestroyed(QObject *object)
void ToolTipManagerPrivate::removeWidget(QGraphicsWidget *w)
{
// DO NOTE ACCESS w HERE!! IT MAY BE IN THE PROCESS OF DELETION!
// DO NOT ACCESS w HERE!! IT MAY BE IN THE PROCESS OF DELETION!
if (currentWidget == w) {
currentWidget = 0;
showTimer->stop(); // stop the timer to show the tooltip
@ -311,7 +316,14 @@ void ToolTipManagerPrivate::showToolTip()
return;
}
QMetaObject::invokeMethod(currentWidget, "toolTipAboutToShow");
// toolTipAboutToShow may call into methods such as setContent which play
// with the current widget; so let's just pretend for a moment that we don't have
// a current widget
QGraphicsWidget *temp = currentWidget;
currentWidget = 0;
QMetaObject::invokeMethod(temp, "toolTipAboutToShow");
currentWidget = temp;
QHash<QGraphicsWidget *, ToolTipContent>::const_iterator tooltip = tooltips.constFind(currentWidget);
if (tooltip == tooltips.constEnd() || tooltip.value().isEmpty()) {
@ -326,7 +338,9 @@ void ToolTipManagerPrivate::showToolTip()
tipWidget->setContent(currentWidget, tooltip.value());
tipWidget->prepareShowing();
tipWidget->moveTo(ToolTipManager::self()->m_corona->popupPosition(currentWidget, tipWidget->size()));
if (q->m_corona) {
tipWidget->moveTo(q->m_corona->popupPosition(currentWidget, tipWidget->size()));
}
tipWidget->show();
isShown = true; //ToolTip is visible