Fired when the sidebar pane becomes visible as a result of the user switching to it.
browser.devtools.panels.onShown.addListener(listener)
浏览器
.
devtools
.
panels
.
onShown
.
removeListener
(
listener
)
浏览器
.
devtools
.
panels
.
onShown
.
hasListener
(
listener
)
Events have three functions:
addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
校验是否
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
callback
Function that will be called when this event occurs. The function will be passed no arguments.
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Create a sidebar pane, and log show and hide events.
function onCreated(sidebarPane) {
sidebarPane.onShown.addListener(() => {
console.log("Shown");
});
sidebarPane.onHidden.addListener(() => {
console.log("Hidden");
});
}
browser.devtools.panels.elements.createSidebarPane("My pane").then(onCreated);
注意：
This API is based on Chromium's
chrome.devtools.panels
API。
最后修改： , 由 MDN 贡献者