如何在Firefox WebExtensions中获取openerTabId？

Question

我开发了Chrome扩展程序，并尝试使用Firefox WebExtensions将其移植到Firefox。

这是我面临的问题。 在我的扩展中，我需要使用chrome.tabs.Tab.openerTabId ，这是Firefox WebExtensions不支持的（参见文档 ）。

我想出了一个解决方法，通过查询当前窗口中的活动选项卡来获取openerTabId ：

chrome.tabs.query({ active: true, currentWindow: true }, function(tabs) {
    // tabs has only one element, which is the one I just opened
});

但它不起作用，因为此查询的结果是我刚打开的选项卡，而不是我单击“新建选项卡”按钮之前的选项卡 。

现在我想在单击New Tab按钮之前查询活动选项卡，但我没有在chrome.tabs.query()看到任何参数，如lastFocusedTab 。

这可以通过chrome.tabs.query()来完成吗？ 或者还有其他方法吗？

可能重复： Firefox WebExtension中未定义tab.openerTabId 。 不幸的是，这个没有解决:-(。

Answer 1

Firefox 现在支持tabs.Tab.openerTabId （自2017年11月14日推出的Firefox 57以来一直支持）

Answer 2

自Firefox 57起在Desktop Firefox中受支持

从Firefox 57开始 ，桌面版Firefox支持tabs.Tab.openerTabId 。

Firefox for Android不支持

Firefox for Android 不支持 tabs.Tab.openerTabId

如果您希望您的扩展程序与Android版Firefox兼容，则必须自行跟踪此信息。 您可以跟踪用户通过单击链接打开的选项卡的开启者选项卡ID。 当JavaScript创建一个新选项卡时，您可以猜测它是由活动选项卡中的JavaScript完成的，但您无法知道。 您可以通过跟踪当前活动选项卡，侦听要创建的新选项卡以及监听创建新选项卡的原因是因为用户单击了链接。 这可以通过听取：

• tabs.onActivated以跟踪当前活动的选项卡
  这是在tabs.onCreated之前tabs.onCreated ，因此您需要保留先前活动选项卡的记录。 对于立即激活新打开的选项卡的情况，将需要这样做。 显然，您还需要考虑不立即激活新选项卡的情况。
• tabs.onCreated以确定何时创建新选项卡。
• webNavigation.onCommitted以查看transitionType以查看新选项卡实际上是从link创建的，而不是当用户从书签中打开新选项卡时恰好成为活动选项卡等。

作为参考，这些是用户点击链接时触发的事件（ <a href="http://www.example.com" target="_blank"> ）：

Content event: mousedown  on: <a href="http://www.example.com" target="_blank">  contentMessageUI.js:16:9
Content event: mouseup    on: <a href="http://www.example.com" target="_blank">  contentMessageUI.js:16:9
Content event: click      on: <a href="http://www.example.com" target="_blank">  contentMessageUI.js:16:9
tabs.onActivated                  ->  arg[0]= Object { tabId: 8, windowId: 0 }
tabs.onHighlighted                ->  arg[0]= Object { tabIds: Array[1], windowId: 0 }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: "complete" } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: undefined } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onZoomChange                 ->  arg[0]= Object { tabId: 8, oldZoomFactor: undefined, newZoomFactor: 1, zoomSettings: Object }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: "complete", url: "about:blank" } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: undefined } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: "loading" } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
tabs.onCreated                    ->  arg[0]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
webNavigation.onBeforeNavigate    ->  arg[0]= Object { url: "about:blank", timeStamp: 1487869034364, frameId: 0, parentFrameId: -1, tabId: 8 }
webNavigation.onErrorOccurred     ->  arg[0]= Object { url: "about:blank", timeStamp: 1487869034368, frameId: 0, parentFrameId: -1, error: "Error code 2152398850", tabId: 8 }
webNavigation.onCommitted         ->  arg[0]= Object { url: "about:blank", timeStamp: 1487869034377, frameId: 0, parentFrameId: -1, tabId: 8, transitionType: "link", transitionQualifiers: Array[0] }
webNavigation.onBeforeNavigate    ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487869034380, frameId: 0, parentFrameId: -1, tabId: 8 }
webRequest.onBeforeRequest        ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034382, frameId: 0, parentFrameId: -1, tabId: 8 }
webRequest.onBeforeSendHeaders    ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034384, frameId: 0, parentFrameId: -1, tabId: 8, requestHeaders: Array[6] }
webRequest.onSendHeaders          ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034387, frameId: 0, parentFrameId: -1, tabId: 8, requestHeaders: Array[6] }
webRequest.onHeadersReceived      ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034416, frameId: 0, parentFrameId: -1, tabId: 8, responseHeaders: Array[11], 2 more… }
webRequest.onResponseStarted      ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034420, frameId: 0, parentFrameId: -1, tabId: 8, responseHeaders: Array[11], 2 more… }
webRequest.onCompleted            ->  arg[0]= Object { requestId: "150", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487869034429, frameId: 0, parentFrameId: -1, tabId: 8, responseHeaders: Array[11], 2 more… }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: "loading", url: "http://www.example.com/" } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
webNavigation.onCommitted         ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487869034538, frameId: 0, parentFrameId: -1, tabId: 8, transitionType: "link", transitionQualifiers: Array[0] }
tabs.onUpdated                    ->  arg[0]= 8 :: arg[1]= Object { status: "complete" } :: arg[2]= Object { id: 8, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
webNavigation.onDOMContentLoaded  ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487869034710, frameId: 0, parentFrameId: -1, tabId: 8 }
webNavigation.onCompleted         ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487869034715, frameId: 0, parentFrameId: -1, tabId: 8 }

看来，当通过JavaScript打开选项卡时， transitionType也将是link （假设用户已允许它）。 以下是window.open('http://www.example.com');打开新标签页时的事件window.open('http://www.example.com'); （在允许来自该域的弹出窗口后，通过在DevTools控制台中为内容页面执行该模拟）：

tabs.onActivated                  ->  arg[0]= Object { tabId: 11, windowId: 0 }
tabs.onHighlighted                ->  arg[0]= Object { tabIds: Array[1], windowId: 0 }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: "complete" } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: undefined } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onZoomChange                 ->  arg[0]= Object { tabId: 11, oldZoomFactor: undefined, newZoomFactor: 1, zoomSettings: Object }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: "complete", url: "about:blank" } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: undefined } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: "loading" } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
tabs.onCreated                    ->  arg[0]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
webNavigation.onBeforeNavigate    ->  arg[0]= Object { url: "about:blank", timeStamp: 1487871931270, frameId: 0, parentFrameId: -1, tabId: 11 }
webNavigation.onErrorOccurred     ->  arg[0]= Object { url: "about:blank", timeStamp: 1487871931274, frameId: 0, parentFrameId: -1, error: "Error code 2152398850", tabId: 11 }
webNavigation.onCommitted         ->  arg[0]= Object { url: "about:blank", timeStamp: 1487871931289, frameId: 0, parentFrameId: -1, tabId: 11, transitionType: "link", transitionQualifiers: Array[0] }
webNavigation.onBeforeNavigate    ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487871931292, frameId: 0, parentFrameId: -1, tabId: 11 }
webRequest.onBeforeRequest        ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931294, frameId: 0, parentFrameId: -1, tabId: 11 }
webRequest.onBeforeSendHeaders    ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931297, frameId: 0, parentFrameId: -1, tabId: 11, requestHeaders: Array[6] }
webRequest.onSendHeaders          ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931299, frameId: 0, parentFrameId: -1, tabId: 11, requestHeaders: Array[6] }
webRequest.onHeadersReceived      ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931312, frameId: 0, parentFrameId: -1, tabId: 11, responseHeaders: Array[11], 2 more… }
webRequest.onResponseStarted      ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931317, frameId: 0, parentFrameId: -1, tabId: 11, responseHeaders: Array[11], 2 more… }
webRequest.onCompleted            ->  arg[0]= Object { requestId: "159", url: "http://www.example.com/", originUrl: "http://www.example.com/", method: "GET", type: "main_frame", timeStamp: 1487871931329, frameId: 0, parentFrameId: -1, tabId: 11, responseHeaders: Array[11], 2 more… }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: "loading", url: "http://www.example.com/" } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "loading", incognito: false, width: 1100, 5 more… }
history.onVisited                 ->  arg[0]= Object { id: "fGv8w_MX50EI", url: "http://www.example.com/", title: "", lastVisitTime: 1487871931320, visitCount: 4, typedCount: 1 }
webNavigation.onCommitted         ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487871931480, frameId: 0, parentFrameId: -1, tabId: 11, transitionType: "link", transitionQualifiers: Array[0] }
tabs.onUpdated                    ->  arg[0]= 11 :: arg[1]= Object { status: "complete" } :: arg[2]= Object { id: 11, index: 2, windowId: 0, selected: true, highlighted: true, active: true, pinned: false, status: "complete", incognito: false, width: 1100, 5 more… }
webNavigation.onDOMContentLoaded  ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487871931652, frameId: 0, parentFrameId: -1, tabId: 11 }
webNavigation.onCompleted         ->  arg[0]= Object { url: "http://www.example.com/", timeStamp: 1487871931657, frameId: 0, parentFrameId: -1, tabId: 11 }