src/macosx/classes/sun/lwawt/LWWindowPeer.java
Print this page
@@ -86,14 +86,20 @@
// private VolatileImage backBuffer;
private volatile BufferedImage backBuffer;
private volatile int windowState = Frame.NORMAL;
- // A peer where the last mouse event came to. Used to generate
- // MOUSE_ENTERED/EXITED notifications and by cursor manager to
+ // check that the mouse is over the window
+ private volatile boolean isMouseOver = false;
+
+ // A peer where the last mouse event came to. Used by cursor manager to
// find the component under cursor
- private static volatile LWComponentPeer lastMouseEventPeer = null;
+ private static volatile LWComponentPeer lastCommonMouseEventPeer = null;
+
+ // A peer where the last mouse event came to. Used to generate
+ // MOUSE_ENTERED/EXITED notifications
+ private volatile LWComponentPeer lastMouseEventPeer;
// Peers where all dragged/released events should come to,
// depending on what mouse button is being dragged according to Cocoa
private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3];
@@ -674,70 +680,69 @@
{
// 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()) {
+ isMouseOver = false;
+ if (lastMouseEventPeer != null) {
+ if (lastMouseEventPeer.isEnabled()) {
Point lp = lastMouseEventPeer.windowToLocal(x, y,
- lastWindowPeer);
+ this);
postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
MouseEvent.MOUSE_EXITED, when,
modifiers, lp.x, lp.y, screenX,
screenY, clickCount, popupTrigger,
button));
}
- lastMouseEventPeer = null;
- }
- } else {
- if (targetPeer != lastMouseEventPeer) {
- if (id != MouseEvent.MOUSE_DRAGGED || lastMouseEventPeer == null) {
- // 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;
- postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
- MouseEvent.MOUSE_EXITED,
- when, modifiers,
- oldp.x, oldp.y, screenX, screenY,
- clickCount, popupTrigger, button));
- } else {
- Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
- postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
- MouseEvent.MOUSE_EXITED,
- when, modifiers,
- oldp.x, oldp.y, 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;
}
- if (targetPeer != null && targetPeer.isEnabled() && id != MouseEvent.MOUSE_ENTERED) {
- Point newp = targetPeer.windowToLocal(x, y, curWindowPeer);
+ } else if(id == MouseEvent.MOUSE_ENTERED) {
+ isMouseOver = true;
+ if (targetPeer != null) {
+ if (targetPeer.isEnabled()) {
+ Point lp = targetPeer.windowToLocal(x, y, this);
postEvent(new MouseEvent(targetPeer.getTarget(),
- MouseEvent.MOUSE_ENTERED,
- when, modifiers,
- newp.x, newp.y, screenX, screenY,
- clickCount, popupTrigger, button));
- }
+ MouseEvent.MOUSE_ENTERED, when,
+ modifiers, lp.x, lp.y, screenX,
+ screenY, clickCount, popupTrigger,
+ button));
}
+ lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
}
+ } else {
+ PlatformWindow topmostPlatforWindow =
+ platformWindow.getTopmostPlatformWindowUnderMouse();
+
+ LWWindowPeer topmostWindowPeer =
+ topmostPlatforWindow != null ? topmostPlatforWindow.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 != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
+ 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;
@@ -783,23 +788,17 @@
}
// 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);
+ 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);
@@ -819,10 +818,42 @@
}
}
notifyUpdateCursor();
}
+ private void generateMouseEnterExitEventsForComponents(long when,
+ int button, int x, int y, int screenX, int screenY,
+ int modifiers, int clickCount, boolean popupTrigger,
+ LWComponentPeer targetPeer) {
+
+ if (!isMouseOver || targetPeer == lastMouseEventPeer) {
+ return;
+ }
+
+ // Generate Mouse Exit for components
+ if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
+ Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
+ postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
+ MouseEvent.MOUSE_EXITED,
+ when, modifiers,
+ oldp.x, oldp.y, 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);
+ postEvent(new MouseEvent(targetPeer.getTarget(),
+ MouseEvent.MOUSE_ENTERED,
+ when, modifiers,
+ newp.x, newp.y, screenX, screenY,
+ clickCount, popupTrigger, button));
+ }
+ }
+
public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
int scrollType, int scrollAmount,
int wheelRotation, double preciseWheelRotation,
byte[] bdata)
{
@@ -1063,15 +1094,15 @@
return changed;
}
public static LWWindowPeer getWindowUnderCursor() {
- return lastMouseEventPeer != null ? lastMouseEventPeer.getWindowPeerOrSelf() : null;
+ return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
}
public static LWComponentPeer<?, ?> getPeerUnderCursor() {
- return lastMouseEventPeer;
+ return lastCommonMouseEventPeer;
}
/*
* Requests platform to set native focus on a frame/dialog.
* In case of a simple window, triggers appropriate java focus change.