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diff --git a/devtools/docs/user/page_inspector/how_to/examine_event_listeners/index.rst b/devtools/docs/user/page_inspector/how_to/examine_event_listeners/index.rst new file mode 100644 index 0000000000..0595d6164b --- /dev/null +++ b/devtools/docs/user/page_inspector/how_to/examine_event_listeners/index.rst @@ -0,0 +1,27 @@ +======================= +Examine Event Listeners +======================= + +The inspector shows the word "event" next to elements in the :ref:`HTML Pane <page_inspector_ui_tour_html_pane>`, that have event listeners bound to them: + +.. image:: inspect_element_with_eventhandler.png + :class: border + +Click the icon, then you'll see a popup listing all the event listeners bound to this element: + +.. image:: inspector_event_handlers.png + :class: border + +Each line contains: + + +- a right-pointing arrowhead; click to expand the row and show the listener function source code +- the name of the event for which a handler was attached to this element +- the name and line number for the listener; you can also click here to expand the row and view the listener function source code +- a curved arrow pointing to a stack; click it to show the code for the handler in the debugger +- a label indicating whether the event bubbles +- a label indicating the system that defines the event. Firefox can display: + + - standard DOM events + - `jQuery events <https://api.jquery.com/category/events/>`_ + - `React events <https://facebook.github.io/react/docs/events.html>`_ |