private void generateMouseEnterExitEventsForComponents(
long when,
int button,
int x,
int y,
int screenX,
int screenY,
int modifiers,
int clickCount,
boolean popupTrigger,
final LWComponentPeer<?, ?> targetPeer) {
if (!isMouseOver || targetPeer == lastMouseEventPeer) {
return;
}
// Generate Mouse Exit for components
if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
Component target = lastMouseEventPeer.getTarget();
postMouseExitedEvent(
target, when, modifiers, oldp, screenX, screenY, clickCount, popupTrigger, button);
}
lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
// Generate Mouse Enter for components
if (targetPeer != null && targetPeer.isEnabled()) {
Point newp = targetPeer.windowToLocal(x, y, this);
Component target = targetPeer.getTarget();
postMouseEnteredEvent(
target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
}
}
@Override
public void notifyMouseWheelEvent(
long when,
int x,
int y,
int modifiers,
int scrollType,
int scrollAmount,
int wheelRotation,
double preciseWheelRotation,
byte[] bdata) {
// TODO: could we just use the last mouse event target here?
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
final LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
if (targetPeer == null || !targetPeer.isEnabled()) {
return;
}
Point lp = targetPeer.windowToLocal(x, y, this);
// TODO: fill "bdata" member of AWTEvent
// TODO: screenX/screenY
postEvent(
new MouseWheelEvent(
targetPeer.getTarget(),
MouseEvent.MOUSE_WHEEL,
when,
modifiers,
lp.x,
lp.y,
0,
0, /* screenX, Y */
0 /* clickCount */,
false /* popupTrigger */,
scrollType,
scrollAmount,
wheelRotation,
preciseWheelRotation));
}
public static LWWindowPeer getWindowUnderCursor() {
return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
}
/*
* Called by the delegate to dispatch the event to Java. Event
* coordinates are relative to non-client window are, i.e. the top-left
* point of the client area is (insets.top, insets.left).
*/
@Override
public void notifyMouseEvent(
PlatformWindow eventPlatformWindow,
int id,
long when,
int button,
int x,
int y,
int screenX,
int screenY,
int modifiers,
int clickCount,
boolean popupTrigger,
byte[] bdata) {
// TODO: fill "bdata" member of AWTEvent
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
if (id == MouseEvent.MOUSE_EXITED) {
isMouseOver = false;
if (lastMouseEventPeer != null) {
if (lastMouseEventPeer.isEnabled()) {
Point lp = lastMouseEventPeer.windowToLocal(x, y, this);
Component target = lastMouseEventPeer.getTarget();
postMouseExitedEvent(
target, when, modifiers, lp, screenX, screenY, clickCount, popupTrigger, button);
}
// Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
// to a peer from another window. So we must first check if this peer is
// the same as lastWindowPeer
if (lastCommonMouseEventPeer != null
&& lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
lastCommonMouseEventPeer = null;
}
lastMouseEventPeer = null;
}
} else if (id == MouseEvent.MOUSE_ENTERED) {
isMouseOver = true;
if (targetPeer != null) {
if (targetPeer.isEnabled()) {
Point lp = targetPeer.windowToLocal(x, y, this);
Component target = targetPeer.getTarget();
postMouseEnteredEvent(
target, when, modifiers, lp, screenX, screenY, clickCount, popupTrigger, button);
}
lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
}
} else {
LWWindowPeer topmostWindowPeer =
eventPlatformWindow != null ? eventPlatformWindow.getPeer() : null;
// topmostWindowPeer == null condition is added for the backward
// compatibility with applets. It can be removed when the
// getTopmostPlatformWindowUnderMouse() method will be properly
// implemented in CPlatformEmbeddedFrame class
if (topmostWindowPeer == this || topmostWindowPeer == null) {
generateMouseEnterExitEventsForComponents(
when, button, x, y, screenX, screenY, modifiers, clickCount, popupTrigger, targetPeer);
} else {
LWComponentPeer<?, ?> topmostTargetPeer = topmostWindowPeer.findPeerAt(r.x + x, r.y + y);
topmostWindowPeer.generateMouseEnterExitEventsForComponents(
when,
button,
x,
y,
screenX,
screenY,
modifiers,
clickCount,
popupTrigger,
topmostTargetPeer);
}
// TODO: fill "bdata" member of AWTEvent
int eventButtonMask = (button > 0) ? MouseEvent.getMaskForButton(button) : 0;
int otherButtonsPressed = modifiers & ~eventButtonMask;
// For pressed/dragged/released events OS X treats other
// mouse buttons as if they were BUTTON2, so we do the same
int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
// MOUSE_ENTERED/EXITED are generated for the components strictly under
// mouse even when dragging. That's why we first update lastMouseEventPeer
// based on initial targetPeer value and only then recalculate targetPeer
// for MOUSE_DRAGGED/RELEASED events
if (id == MouseEvent.MOUSE_PRESSED) {
// Ungrab only if this window is not an owned window of the grabbing one.
if (!isGrabbing() && grabbingWindow != null && !grabbingWindow.isOneOfOwnersOf(this)) {
grabbingWindow.ungrab();
}
if (otherButtonsPressed == 0) {
mouseClickButtons = eventButtonMask;
} else {
mouseClickButtons |= eventButtonMask;
}
// The window should be focused on mouse click. If it gets activated by the native platform,
// this request will be no op. It will take effect when:
// 1. A simple not focused window is clicked.
// 2. An active but not focused owner frame/dialog is clicked.
// The mouse event then will trigger a focus request "in window" to the component, so the
// window
// should gain focus before.
requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
mouseDownTarget[targetIdx] = targetPeer;
} else if (id == MouseEvent.MOUSE_DRAGGED) {
// Cocoa dragged event has the information about which mouse
// button is being dragged. Use it to determine the peer that
// should receive the dragged event.
targetPeer = mouseDownTarget[targetIdx];
mouseClickButtons &= ~modifiers;
} else if (id == MouseEvent.MOUSE_RELEASED) {
// TODO: currently, mouse released event goes to the same component
// that received corresponding mouse pressed event. For most cases,
// it's OK, however, we need to make sure that our behavior is consistent
// with 1.6 for cases where component in question have been
// hidden/removed in between of mouse pressed/released events.
targetPeer = mouseDownTarget[targetIdx];
if ((modifiers & eventButtonMask) == 0) {
mouseDownTarget[targetIdx] = null;
}
// mouseClickButtons is updated below, after MOUSE_CLICK is sent
}
if (targetPeer == null) {
// TODO This can happen if this window is invisible. this is correct behavior in this case?
targetPeer = this;
}
Point lp = targetPeer.windowToLocal(x, y, this);
if (targetPeer.isEnabled()) {
MouseEvent event =
new MouseEvent(
targetPeer.getTarget(),
id,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button);
postEvent(event);
}
if (id == MouseEvent.MOUSE_RELEASED) {
if ((mouseClickButtons & eventButtonMask) != 0 && targetPeer.isEnabled()) {
postEvent(
new MouseEvent(
targetPeer.getTarget(),
MouseEvent.MOUSE_CLICKED,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button));
}
mouseClickButtons &= ~eventButtonMask;
}
}
notifyUpdateCursor();
}
/*
* Called by the delegate to dispatch the event to Java. Event
* coordinates are relative to non-client window are, i.e. the top-left
* point of the client area is (insets.top, insets.left).
*/
@Override
public void notifyMouseEvent(
int id,
long when,
int button,
int x,
int y,
int screenX,
int screenY,
int modifiers,
int clickCount,
boolean popupTrigger,
byte[] bdata) {
// TODO: fill "bdata" member of AWTEvent
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
LWWindowPeer lastWindowPeer =
(lastMouseEventPeer != null) ? lastMouseEventPeer.getWindowPeerOrSelf() : null;
LWWindowPeer curWindowPeer = (targetPeer != null) ? targetPeer.getWindowPeerOrSelf() : null;
if (id == MouseEvent.MOUSE_EXITED) {
// Sometimes we may get MOUSE_EXITED after lastMouseEventPeer is switched
// to a peer from another window. So we must first check if this peer is
// the same as lastWindowPeer
if (lastWindowPeer == this) {
if (isEnabled()) {
Point lp = lastMouseEventPeer.windowToLocal(x, y, lastWindowPeer);
Component target = lastMouseEventPeer.getTarget();
postMouseEnteredExitedEvent(
target,
MouseEvent.MOUSE_EXITED,
when,
modifiers,
lp,
screenX,
screenY,
clickCount,
popupTrigger,
button);
}
lastMouseEventPeer = null;
}
} else {
if (targetPeer != lastMouseEventPeer) {
// lastMouseEventPeer may be null if mouse was out of Java windows
if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
// Sometimes, MOUSE_EXITED is not sent by delegate (or is sent a bit
// later), in which case lastWindowPeer is another window
if (lastWindowPeer != this) {
Point oldp = lastMouseEventPeer.windowToLocal(x, y, lastWindowPeer);
// Additionally translate from this to lastWindowPeer coordinates
Rectangle lr = lastWindowPeer.getBounds();
oldp.x += r.x - lr.x;
oldp.y += r.y - lr.y;
Component target = lastMouseEventPeer.getTarget();
postMouseEnteredExitedEvent(
target,
MouseEvent.MOUSE_EXITED,
when,
modifiers,
oldp,
screenX,
screenY,
clickCount,
popupTrigger,
button);
} else {
Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
Component target = lastMouseEventPeer.getTarget();
postMouseEnteredExitedEvent(
target,
MouseEvent.MOUSE_EXITED,
when,
modifiers,
oldp,
screenX,
screenY,
clickCount,
popupTrigger,
button);
}
}
lastMouseEventPeer = targetPeer;
if (targetPeer != null && targetPeer.isEnabled() && id != MouseEvent.MOUSE_ENTERED) {
Point newp = targetPeer.windowToLocal(x, y, curWindowPeer);
Component target = targetPeer.getTarget();
postMouseEnteredExitedEvent(
target,
MouseEvent.MOUSE_ENTERED,
when,
modifiers,
newp,
screenX,
screenY,
clickCount,
popupTrigger,
button);
}
}
// TODO: fill "bdata" member of AWTEvent
int eventButtonMask = (button > 0) ? MouseEvent.getMaskForButton(button) : 0;
int otherButtonsPressed = modifiers & ~eventButtonMask;
// For pressed/dragged/released events OS X treats other
// mouse buttons as if they were BUTTON2, so we do the same
int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
// MOUSE_ENTERED/EXITED are generated for the components strictly under
// mouse even when dragging. That's why we first update lastMouseEventPeer
// based on initial targetPeer value and only then recalculate targetPeer
// for MOUSE_DRAGGED/RELEASED events
if (id == MouseEvent.MOUSE_PRESSED) {
// Ungrab only if this window is not an owned window of the grabbing one.
if (!isGrabbing()
&& grabbingWindow != null
&& grabbingWindow != getOwnerFrameDialog(this)) {
grabbingWindow.ungrab();
}
if (otherButtonsPressed == 0) {
mouseClickButtons = eventButtonMask;
} else {
mouseClickButtons |= eventButtonMask;
}
mouseDownTarget[targetIdx] = targetPeer;
} else if (id == MouseEvent.MOUSE_DRAGGED) {
// Cocoa dragged event has the information about which mouse
// button is being dragged. Use it to determine the peer that
// should receive the dragged event.
targetPeer = mouseDownTarget[targetIdx];
mouseClickButtons &= ~modifiers;
} else if (id == MouseEvent.MOUSE_RELEASED) {
// TODO: currently, mouse released event goes to the same component
// that received corresponding mouse pressed event. For most cases,
// it's OK, however, we need to make sure that our behavior is consistent
// with 1.6 for cases where component in question have been
// hidden/removed in between of mouse pressed/released events.
targetPeer = mouseDownTarget[targetIdx];
if ((modifiers & eventButtonMask) == 0) {
mouseDownTarget[targetIdx] = null;
}
// mouseClickButtons is updated below, after MOUSE_CLICK is sent
}
// check if we receive mouseEvent from outside the window's bounds
// it can be either mouseDragged or mouseReleased
if (curWindowPeer == null) {
// TODO This can happen if this window is invisible. this is correct behavior in this case?
curWindowPeer = this;
}
if (targetPeer == null) {
// TODO This can happen if this window is invisible. this is correct behavior in this case?
targetPeer = this;
}
Point lp = targetPeer.windowToLocal(x, y, curWindowPeer);
if (targetPeer.isEnabled()) {
if (id == MouseEvent.MOUSE_ENTERED || id == MouseEvent.MOUSE_EXITED) {
postMouseEnteredExitedEvent(
targetPeer.getTarget(),
id,
when,
modifiers,
lp,
screenX,
screenY,
clickCount,
popupTrigger,
button);
} else {
MouseEvent event =
new MouseEvent(
targetPeer.getTarget(),
id,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button);
postEvent(event);
}
}
if (id == MouseEvent.MOUSE_RELEASED) {
if ((mouseClickButtons & eventButtonMask) != 0 && targetPeer.isEnabled()) {
postEvent(
new MouseEvent(
targetPeer.getTarget(),
MouseEvent.MOUSE_CLICKED,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button));
}
mouseClickButtons &= ~eventButtonMask;
}
}
notifyUpdateCursor();
}