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Remove code for non-enhanced mouse events 

Followup to a37785ec76.
The mouse button that caused the event and the current state of all
mouse buttons must always be given separately in QPA mouse events.

Task-number: QTBUG-59277
Task-number: QTBUG-62329
Task-number: QTBUG-63467
Change-Id: I27209b3730baef325ce0f1c4d3778930e72d5465
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
bb10
Shawn Rutledge 2020-11-09 22:51:21 +01:00
parent 5f2b53f13c
commit 48219c8231
2 changed files with 23 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
src/gui/kernel/qguiapplication.cpp
View File

@ -2159,73 +2159,31 @@ void QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::Mo
return;
}
if (e->enhancedMouseEvent()) {
type = e->buttonType;
button = e->button;
type = e->buttonType;
button = e->button;
if (type == QEvent::NonClientAreaMouseMove || type == QEvent::MouseMove)
mouseMove = true;
else if (type == QEvent::NonClientAreaMouseButtonPress || type == QEvent::MouseButtonPress)
mousePress = true;
if (type == QEvent::NonClientAreaMouseMove || type == QEvent::MouseMove)
mouseMove = true;
else if (type == QEvent::NonClientAreaMouseButtonPress || type == QEvent::MouseButtonPress)
mousePress = true;
if (!mouseMove && positionChanged) {
QWindowSystemInterfacePrivate::MouseEvent moveEvent(window, e->timestamp,
e->localPos, e->globalPos, e->buttons ^ button, e->modifiers, Qt::NoButton,
e->nonClientArea ? QEvent::NonClientAreaMouseMove : QEvent::MouseMove,
e->source, e->nonClientArea);
if (e->synthetic())
moveEvent.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
processMouseEvent(&moveEvent); // mouse move excluding state change
processMouseEvent(e); // the original mouse event
return;
}
if (mouseMove && !positionChanged) {
// On Windows, and possibly other platforms, a touchpad can send a mouse move
// that does not change position, between a press and a release. This may
// confuse applications, so we always filter out these mouse events for
// consistent behavior among platforms.
return;
}
} else {
Qt::MouseButtons stateChange = e->buttons ^ mouse_buttons;
if (positionChanged && (stateChange != Qt::NoButton)) {
QWindowSystemInterfacePrivate::MouseEvent moveEvent(window, e->timestamp, e->localPos,
e->globalPos, mouse_buttons, e->modifiers, Qt::NoButton, QEvent::None, e->source,
e->nonClientArea);
if (e->synthetic())
moveEvent.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
processMouseEvent(&moveEvent); // mouse move excluding state change
processMouseEvent(e); // the original mouse event
return;
}
// In the compatibility path we deduce event type and button that caused the event
if (positionChanged) {
mouseMove = true;
type = e->nonClientArea ? QEvent::NonClientAreaMouseMove : QEvent::MouseMove;
} else {
// Check to see if a new button has been pressed/released.
for (uint mask = Qt::LeftButton; mask <= Qt::MaxMouseButton; mask <<= 1) {
if (stateChange & mask) {
button = Qt::MouseButton(mask);
break;
}
}
if (button == Qt::NoButton) {
// Ignore mouse events that don't change the current state. This shouldn't
// really happen, getting here can only mean that the stored button state
// is out of sync with the actual physical button state.
return;
}
if (button & e->buttons) {
mousePress = true;
type = e->nonClientArea ? QEvent::NonClientAreaMouseButtonPress
: QEvent::MouseButtonPress;
} else {
type = e->nonClientArea ? QEvent::NonClientAreaMouseButtonRelease
: QEvent::MouseButtonRelease;
}
}
if (!mouseMove && positionChanged) {
QWindowSystemInterfacePrivate::MouseEvent moveEvent(window, e->timestamp,
e->localPos, e->globalPos, e->buttons ^ button, e->modifiers, Qt::NoButton,
e->nonClientArea ? QEvent::NonClientAreaMouseMove : QEvent::MouseMove,
e->source, e->nonClientArea);
if (e->synthetic())
moveEvent.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
processMouseEvent(&moveEvent); // mouse move excluding state change
processMouseEvent(e); // the original mouse event
return;
}
if (mouseMove && !positionChanged) {
// On Windows, and possibly other platforms, a touchpad can send a mouse move
// that does not change position, between a press and a release. This may
// confuse applications, so we always filter out these mouse events for
// consistent behavior among platforms.
return;
}
modifier_buttons = e->modifiers;

7
src/gui/kernel/qwindowsysteminterface_p.h
View File

@ -254,13 +254,6 @@ public:
: PointerEvent(w, time, Mouse, mods, device), localPos(local), globalPos(global),
buttons(state), source(src), nonClientArea(frame), button(b), buttonType(type) { }
// ### In Qt6 this method can be removed as there won't be need for compatibility code path
bool enhancedMouseEvent() const
{
static const bool disableEnhanced = qEnvironmentVariableIsSet("QT_QPA_DISABLE_ENHANCED_MOUSE");
return !disableEnhanced && buttonType != QEvent::None;
}
QPointF localPos;
QPointF globalPos;
Qt::MouseButtons buttons;