An ExtensionPanel represents a panel added to the devtools. It's the resolution of the Promise returned by browser.devtools.panels.create().
Type
Values of this type are objects. The define two events, onShown and onHidden.
onShownis emitted when the panel is shown in the devtools (for example, because the user clicked on the panel's tab in the devtools window).onHiddenis emitted when the panel is hidden (for example, because the user switched to a different tab in the devtools window).
Browser compatibility
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | No | 54 | No | Yes |
onSearch | Yes | No | No | No | Yes |
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Examples
This code creates a new panel, then adds handlers for its onShown and onHidden events.
function handleShown(e) {
console.log(e);
console.log("panel is being shown");
}
function handleHidden(e) {
console.log(e);
console.log("panel is being hidden");
}
browser.devtools.panels.create(
"My Panel", // title
"icons/star.png", // icon
"devtools/panel/panel.html" // content
).then((newPanel) => {
newPanel.onShown.addListener(handleShown);
newPanel.onHidden.addListener(handleHidden);
});
Acknowledgements
This API is based on Chromium's chrome.devtools API.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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