onSelectionChanged
Fires when the user selects a different page element for inspection with the browser's developer tools, for example by selecting the "Inspect Element" context menu item in Firefox.
Syntax
js
browser.devtools.panels.elements.onSelectionChanged.addListener(listener)
browser.devtools.panels.elements.onSelectionChanged.removeListener(listener)
browser.devtools.panels.elements.onSelectionChanged.hasListener(listener)
Events have three functions:
addListener(listener)
-
Adds a listener to this event.
removeListener(listener)
-
Stop listening to this event. The
listener
argument is the listener to remove. hasListener(listener)
-
Check whether
listener
is registered for this event. Returnstrue
if it is listening,false
otherwise.
addListener syntax
Parameters
listener
-
The function called when this event occurs. The function is passed no arguments.
Browser compatibility
BCD tables only load in the browser
Examples
Listen for selection changed events, and log the text content of the newly selected element:
js
function handleSelectedElement() {
browser.devtools.inspectedWindow.eval("$0.textContent")
.then((result) => {
console.log(result[0]);
});
}
browser.devtools.panels.elements.onSelectionChanged.addListener(handleSelectedElement);
Note: This API is based on Chromium's chrome.devtools
API.