如何禁用窗口右上角按钮来关闭应用程序?
非常感谢
答案 0 :(得分:4)
另一种可能性是,如果用户想要关闭应用程序,则“图标化”应用程序,这意味着应用程序被移动到托盘项目中。将以下内容添加到ApplicationWorkbenchWindowAdvisor:
一个。覆盖postWindowOpen
public void postWindowOpen() { Shell shell = getWindowConfigurer().getWindow().getShell(); boolean trayEnabled = false; trayEnabled = enableTray(); }
湾实施托盘支持
/* Enable System-Tray Support */ private boolean enableTray() { /* Avoid that this is being called redundantly */ if (this.fTrayEnabled) { return true; } /* Only enable for Primary Window */ IWorkbenchWindow primaryWindow = PlatformUI.getWorkbench().getWorkbenchWindows()[0]; if (primaryWindow == null || !primaryWindow.equals(getWindowConfigurer().getWindow())) { return false; } final Shell shell = primaryWindow.getShell(); final Tray tray = shell.getDisplay().getSystemTray(); /* Tray not support on the OS */ if (tray == null) { return false; } /* Create Item in Tray */ this.fTrayItem = new TrayItem(tray, SWT.NONE); this.fTrayItem.setToolTipText(Platform.getProduct().getName()); this.fTrayEnabled = true; this.fTrayItem.setVisible(false); /* Apply Image */ this.fTrayItem.setImage(trayIcon); /* Minimize to Tray on Shell Iconify if set */ this.fTrayShellListener = new ShellAdapter() { @Override public void shellIconified(final ShellEvent e) { if (!ApplicationWorkbenchWindowAdvisor.this.fBlockIconifyEvent && ApplicationWorkbenchWindowAdvisor.this.fMinimizeFromClose) { moveToTray(shell); } } }; shell.addShellListener(this.fTrayShellListener); /* Show Menu on Selection */ this.fTrayItem.addListener(SWT.MenuDetect, new Listener() { public void handleEvent(final Event event) { MenuManager trayMenu = new MenuManager(); /* Restore */ trayMenu.add(new ContributionItem() { @Override public void fill(final Menu menu, final int index) { MenuItem restoreItem = new MenuItem(menu, SWT.PUSH); restoreItem.setText("Restore from Tray"); restoreItem.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(final SelectionEvent e) { restoreFromTray(shell); } }); menu.setDefaultItem(restoreItem); } }); /* Separator */ trayMenu.add(new Separator()); /* Other Items */ ApplicationWorkbenchWindowAdvisor.this.fActionBarAdvisor.fillTrayItem(trayMenu); Menu menu = trayMenu.createContextMenu(shell); menu.setVisible(true); } }); /* Handle DefaultSelection */ this.fTrayItem.addListener(SWT.DefaultSelection, new Listener() { public void handleEvent(final Event event) { /* Restore from Tray */ if (!shell.isVisible()) { restoreFromTray(shell); } else { moveToTray(shell); } } }); return true; } /* Move to System Tray */ private void moveToTray(final Shell shell) { this.fTrayItem.setVisible(true); this.fBlockIconifyEvent = true; try { shell.setVisible(false); } finally { this.fBlockIconifyEvent = false; } this.fMinimizedToTray = true; /** * @param shell */ public void restoreFromTray(final Shell shell) { /* Restore Shell */ shell.setVisible(true); shell.setActive(); shell.layout(true); /* Un-Minimize if minimized */ if (shell.getMinimized()) { shell.setMinimized(false); } this.fTrayItem.setVisible(false); if (this.fTrayTeasing) { this.fTrayItem.setImage(this.trayImage); } this.fTrayTeasing = false; this.fMinimizedToTray = false; } /* Disable System-Tray Support */ private void disableTray() { /* Avoid that this is being called redundantly */ if (!this.fTrayEnabled) { return; } /* First make sure to have the Window restored */ restoreFromTray(getWindowConfigurer().getWindow().getShell()); this.fTrayEnabled = false; this.fMinimizedToTray = false; if (this.fTrayItem != null) { this.fTrayItem.dispose(); } if (this.fTrayShellListener != null) { getWindowConfigurer().getWindow().getShell().removeShellListener(this.fTrayShellListener); } }
℃。覆盖preWindowShellClose
@Override public boolean preWindowShellClose() { final res = true ; this.fMinimizeFromClose = true; getWindowConfigurer().getWindow().getShell().notifyListeners(SWT.Iconify, new Event()); res = false; this.fMinimizeFromClose = false; return res; }
HTH 汤姆
答案 1 :(得分:2)
我认为你不能禁用它(比如让它变灰),因为它是由底层操作系统窗口管理器管理的,而不是直接由SWT管理。
你可以添加一个监听器,以便忽略任何关闭事件,有点像this snippet:
import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
public class Snippet99 {
public static void main (String [] args) {
Display display = new Display ();
final Shell shell = new Shell (display);
shell.addListener (SWT.Close, new Listener () {
public void handleEvent (Event event) {
int style = SWT.APPLICATION_MODAL | SWT.YES | SWT.NO;
MessageBox messageBox = new MessageBox (shell, style);
messageBox.setText ("Information");
messageBox.setMessage ("Close the shell?");
event.doit = messageBox.open () == SWT.YES;
}
});
shell.pack ();
shell.open();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
}
在您的情况下,只需将“event.doit
”设置为false
。