popover在状态栏中时的NSPopover瞬态 [英] NSPopover transiency when popover is in status bar

问题描述

我在做一个应用程序，它居住在状态栏。点击状态项时，NSPopover弹出。

I'm making an app which lives in status bar. When status item is clicked, NSPopover pops up.

它看起来像这样：

这里是问题：我想要的是瞬态，也就是说，如果我点击popover之外的任何地方，它将关闭。

Here's the problem: I want it to be "transient", that is if I click anywhere outside of the popover, it will close. And while NSPopoverBehaviorTransient works fine when popover is in a window, it doesn't work when it's in status bar.

我自己如何实现这样的行为？

How can I implement such behavior myself?

推荐答案

原来很容易：

- (IBAction)openPopover:(id)sender
{
    // (open popover)

    if(popoverTransiencyMonitor == nil)
    {
        popoverTransiencyMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:NSLeftMouseDownMask|NSRightMouseDownMask handler:^(NSEvent* event)
                                    {
                                        [self closePopover:sender];
                                    }];
    }
}

- (IBAction)closePopover:(id)sender
{
    if(popoverTransiencyMonitor)
    {
        [NSEvent removeMonitor:popoverTransiencyMonitor];

        popoverTransiencyMonitor = nil;
    }

    // (close popover)
}

然而，不容易的是，有一个令人讨厌的问题与弹出的NSStatusItem popover弹出（当任务控制被调用或空间切换到一个全屏窗口时，它的行为不符合要求）。我不得不实现一个自定义窗口，它总是漂浮在NSStatusItem之上，并处理切换到一个全屏窗口等。这看起来很容易，但显然状态项目不是为这样的东西设计的）;

What wasn't easy, though, is that there are nasty issues with having a popover pop out of NSStatusItem (it didn't behave as desired when Mission Control was invoked or space switched to a full-screen window). I had to implement a custom window that always floats above the NSStatusItem and deals with switching to a full-screen window etc. It seemed easy, but clearly status items weren't designed for something like that ;)

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