如何实现何时复制浏览器选项卡 [英] How to realize when a browser tab has been duplicated

问题描述

我在Chrome(工作阶段的东西)上有一个重复的标签时遇到问题，我想避免重复标签的操作(或缺少关闭重复标签的操作).我正在打开选项卡，因为它是一个弹出窗口，没有地址栏，没有状态栏，也没有任何东西，只有窗口.在IE和Firefox中无法复制选项卡(作为弹出窗口打开)(至少我没有找到一个选项卡)，但是在chrome中仍然可以.

I'm having problems with a duplicate tab on Chrome (session's stuff) and I'd like to avoid the action of duplicating tabs (or lacking that close the duplicate one). I'm opening the tab as it was a popup, with no address bar, no status bar, and no nothing, just the window. There's no way to duplicate a tab (opened as a popup) in IE and Firefox (at least I havent found one), but in chrome is still possible.

有什么办法解决这个问题吗?

Any idea how to approach this?

谢谢！

推荐答案

目标

只需澄清一下:目标是检测(并关闭)通过Chrome的复制"右键菜单选项打开的选项卡.

Just to clarify: The goal is to is to detect (and close) a tab that has been opened via Chrome's "Duplicate" right-click menu option.

第一次尝试

复制选项卡"操作的工作原理几乎与用户在单击返回"然后单击转发"后重新加载页面时完全相同，因此您基本上实现的是

The "Duplicate tab" action works almost exactly like when reloading a page after the user has clicked "Back" then "Forward", so you are basically implementing a version of this question:

function onLoad()
{
    if ($('#myStateInput').val() === '') // Load with no state.
        $('#myStateInput').val('already loaded'); // Set state
    else
        alert("Loaded with state. (Duplicate tab or Back + Forward)");
}

那太好了，但您 only 只想检测何时复制标签".为此，我们可以清除onbeforeunload中的状态.之所以有效，是因为onbeforeunload仅在用户单击上一步"或前进"时才被调用，而在复制选项卡时不会被调用.

Thats great and all, but you only want to detect when you "Duplicate tab". To do this we can blank out the state in onbeforeunload. This works because onbeforeunload gets only called when the user clicks "Back" or "Forward" but not when duplicating a tab.

第二次尝试

function onLoad()
{
    if ($('#myStateInput').val() === '') // Load with no state.
        $('#myStateInput').val('already loaded'); // Set state
    else
        alert("Duplicate tab! Do something.");

    $(window).on('beforeunload', function() // Back or Forward buttons
    {
        $('#myStateInput').val(''); // Blank the state out.
    });
}

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