There is a way to expose custom event so we can used in the editor?

[danielmeza]

I was building a custom widget a confirm dialog, the idea was to have a reusable dialog that I can hook in any other component to customize the content and react to the Ok/Cancel buttons, I wonder if there is a way to fire custom events from the widget so the editor can know about it and thus bind it in the consumer component like:

<confirm_dialog name="my_dialog" 
 title="Is this even possible?" 
 description="I want to call the event when the ok button gets pressed">
    <event_cb callback="on_confirm_dialog_ok" trigger="confirm_dialog_ok" />
</confirm_dialog>

[laszlobalint]

CC: @mrhubbs, @kisvegabor

[danielmeza]

I discover a work arround, but is too limited, I was able to dispatch a event using the VALUE_CHANGED event form the dialog and use the user data to send extra event properties, though this is working for me now I'm pretty sure that fire custom events will be required in the future, pherahps this is a candidate for a new API feature where the user can define custom events in the API for widgets.

<widget>
  <api>
    <enumdf name="confirm_result">
      <value name="OK" value="1"/>
      <value name="Cancel" value="0"/>
   </enumdef>
   <event name="confirm_dialog_on_result">
      <options>
        <option  name="OK" value="1" />
        <option  name="CANCEL" value="0" />
      <options/>
      <user_data name="confirm_dialog_on_result_data" (Optional default to $name_data) >
         <prop name="prop1" type="string" />
         <prop name="prop2" type="bool" />
      </user_data>
   </event>

<view>
   <custom_event_cv event="confirm_dialog_on_result_data" trigger="ready" option="OK"  /> // user data from the original event is flushed
   <-- user user_data is not supported from the .xml the user will need to trigger it from the .c code --/> 
</view>

etypedef num {
  COMFIRM_DIALOG_RESULT_OK = 1,
  COMFIRM_DIALOG_RESULT_CANCEL = 0
} confirm_dialog_on_result_even_t;

typedef struct {
   stirng prop1;
   bool prob2;
} confirm_dialog_on_result_data_t;


static void raise_confirm_dialog_on_result(lv_obj* obj, confirm_dialog_on_result_even_t event, confirm_dialog_on_result_data_t *user_data);

static void subscribe_confirm_dialog_on_result(lv_obj* obj, confirm_dialog_on_result_even_t event, (void) (confirm_dialog_on_result_even_t * event, confirm_dialog_on_result_data_t *user_data) callback);

//custom callback trigger from other control or event. 
void custom_callback(lv_event_t *event)
{
      lv_obj *obj = ...
      confirm_dialog_on_result_data_t user_data = ...
      raise_confirm_dialog_on_result(obj, COMFIRM_DIALOG_RESULT_OK,  user_data);
}

//User hock the event.
 
    subcribe_confirm_dialog_on_result(obj, subscriber_cb);