返回
true
if the page action is being shown for the given tab.
This is an asynchronous function that returns a
Promise
.
let gettingIsShown = browser.pageAction.isShown(
details
// object
)
details
对象
. An object containing the
tabId
to check.
tabId
integer
. ID of the tab to check.
A
Promise
that will be fulfilled with
true
if the extension's page action is being shown for the given tab, and
false
否则。
BCD tables only load in the browser
Check the state of the currently active tab:
async function shownInActiveTab() {
let tabs = await browser.tabs.query({
currentWindow:true,
active: true
});
let shown = await browser.pageAction.isShown({
tabId: tabs[0].id
});
console.log(shown);
}
最后修改： , 由 MDN 贡献者