/** * Dispatches event to the grab Window or event source window depending on whether the grab is * active and on the event type */ static void dispatchToWindow(XEvent ev) { XBaseWindow target = XAwtState.getGrabWindow(); if (target == null || !isGrabbedEvent(ev, target)) { target = XToolkit.windowToXWindow(ev.get_xany().get_window()); } if (target != null && target.checkInitialised()) { target.dispatchEvent(ev); } }
static void ungrabInput() { XToolkit.awtLock(); try { XBaseWindow grabWindow = XAwtState.getGrabWindow(); if (grabLog.isLoggable(Level.FINE)) { grabLog.log(Level.FINE, "UnGrab input on {0}", new Object[] {String.valueOf(grabWindow)}); } if (grabWindow != null) { grabWindow.ungrabInputImpl(); XlibWrapper.XUngrabPointer(XToolkit.getDisplay(), CurrentTime); XlibWrapper.XUngrabKeyboard(XToolkit.getDisplay(), CurrentTime); XAwtState.setGrabWindow(null); // we need to call XFlush() here to force ungrab // see 6384219 for details XlibWrapper.XFlush(XToolkit.getDisplay()); } } finally { XToolkit.awtUnlock(); } }
void destroy() { XToolkit.awtLock(); try { if (hints != null) { XlibWrapper.XFree(hints.pData); hints = null; } XToolkit.removeFromWinMap(getWindow(), this); XlibWrapper.XDestroyWindow(XToolkit.getDisplay(), getWindow()); if (XPropertyCache.isCachingSupported()) { XPropertyCache.clearCache(window); } window = -1; if (!isDisposed()) { setDisposed(true); } XAwtState .getGrabWindow(); // Magic - getGrabWindow clear state if grabbing window is disposed of. } finally { XToolkit.awtUnlock(); } }
/** * We should always grab both keyboard and pointer to control event flow on popups. This also * simplifies synthetic grab implementation. The active grab overrides activated automatic grab. */ public boolean grabInput() { if (grabLog.isLoggable(Level.FINE)) { grabLog.log(Level.FINE, "Grab input on {0}", new Object[] {String.valueOf(this)}); } XToolkit.awtLock(); try { if (XAwtState.getGrabWindow() == this && XAwtState.isManualGrab()) { grabLog.fine(" Already Grabbed"); return true; } // 6273031: PIT. Choice drop down does not close once it is right clicked to show a popup menu // remember previous window having grab and if it's not null ungrab it. XBaseWindow prevGrabWindow = XAwtState.getGrabWindow(); final int eventMask = (int) (ButtonPressMask | ButtonReleaseMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask | ButtonMotionMask); final int ownerEvents = 1; int ptrGrab = XlibWrapper.XGrabPointer( XToolkit.getDisplay(), getContentWindow(), ownerEvents, eventMask, GrabModeAsync, GrabModeAsync, None, (XWM.isMotif() ? XToolkit.arrowCursor : None), CurrentTime); // Check grab results to be consistent with X server grab if (ptrGrab != GrabSuccess) { XlibWrapper.XUngrabPointer(XToolkit.getDisplay(), CurrentTime); XAwtState.setGrabWindow(null); grabLog.fine(" Grab Failure - mouse"); return false; } int keyGrab = XlibWrapper.XGrabKeyboard( XToolkit.getDisplay(), getContentWindow(), ownerEvents, GrabModeAsync, GrabModeAsync, CurrentTime); if (keyGrab != GrabSuccess) { XlibWrapper.XUngrabPointer(XToolkit.getDisplay(), CurrentTime); XlibWrapper.XUngrabKeyboard(XToolkit.getDisplay(), CurrentTime); XAwtState.setGrabWindow(null); grabLog.fine(" Grab Failure - keyboard"); return false; } if (prevGrabWindow != null) { prevGrabWindow.ungrabInputImpl(); } XAwtState.setGrabWindow(this); grabLog.fine(" Grab - success"); return true; } finally { XToolkit.awtUnlock(); } }