CODEWITHSUNDEEP
eventsextjsdynamicfield
Nish
Nish

Reputation: 1

Extjs how to get list of all events of component dynamically

I want to get the list of all events for any particular component dynamically. For example : If I take a Textfield , how can I get all possible events that are mentioned in ExtJs API Doc. so that user can choose and assign the event for any component.

Upvotes: 0

Views: 1734

Answers (2)

Templeton
Templeton

Reputation: 1

For those still wanting an answer to this, https://coderwall.com/p/jnqupq/easily-capture-all-events-on-a-component-in-extjs has provided a nice means of doing so.

When debugging an ExtJS application, you'll often find it useful to listen to all events fired by a specific component. There is actually a handy built-in static method to do this called Ext.util.Observable.capture().

Here's a handy snippet that simply logs the event name and all arguments:

Ext.util.Observable.capture(myObj, function(evname) {console.log(evname, arguments);})

Even better, if you're currently inspecting your component's main element in your browser's developer tools, you can do this:

Ext.util.Observable.capture(Ext.getCmp($0.id), function(evname) {console.log(evname, arguments);})

Where $0 is the currently selected element. Should work fine in Chrome, Firefox, Opera, Safari.

If you don't want those logs to pollute your console anymore, simply call releaseCapture on your object:

Ext.util.Observable.releaseCapture(myObj);

This removes all captures on a given object so you don't have to reference your listener explicitly (which was likely an anonymous function :)).

Bonus tip: also be sure to check out the observe method which does something similar but allows you to listen to all events fired by all instances of a given class.

Upvotes: 0

Alexander
Alexander

Reputation: 20224

component.events

Contains the list you need. You could have found out by yourself reading the source of addEvents method, which is linked from any event you wanted to find in a list.

Upvotes: 1

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