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package sun.awt.X11;

import java.awt.*;

This class represent focus holder window implementation. When toplevel requests or receives focus it instead sets focus to this proxy. This proxy is mapped but invisible(it is kept at (-1,-1)) and therefore X doesn't control focus after we have set it to proxy.
/** * This class represent focus holder window implementation. When toplevel requests or receives focus * it instead sets focus to this proxy. This proxy is mapped but invisible(it is kept at (-1,-1)) * and therefore X doesn't control focus after we have set it to proxy. */
public class XFocusProxyWindow extends XBaseWindow { XWindowPeer owner; public XFocusProxyWindow(XWindowPeer owner) { super(new XCreateWindowParams(new Object[] { BOUNDS, new Rectangle(-1, -1, 1, 1), PARENT_WINDOW, Long.valueOf(owner.getWindow()), EVENT_MASK, Long.valueOf(XConstants.FocusChangeMask | XConstants .KeyPressMask | XConstants.KeyReleaseMask) })); this.owner = owner; } public void postInit(XCreateWindowParams params){ super.postInit(params); setWMClass(getWMClass()); xSetVisible(true); } protected String getWMName() { return "FocusProxy"; } protected String[] getWMClass() { return new String[] {"Focus-Proxy-Window", "FocusProxy"}; } public XWindowPeer getOwner() { return owner; } public void dispatchEvent(XEvent ev) { int type = ev.get_type(); switch (type) { case XConstants.FocusIn: case XConstants.FocusOut: handleFocusEvent(ev); break; } super.dispatchEvent(ev); } public void handleFocusEvent(XEvent xev) { owner.handleFocusEvent(xev); } public void handleKeyPress(XEvent xev) { owner.handleKeyPress(xev); } public void handleKeyRelease(XEvent xev) { owner.handleKeyRelease(xev); } }