The following only applies to visibility trigger. Note that click trigger already support multi selector

Goal

• Trigger multi identical events for multi different selectors w/o duplicate trigger config.
• Support selector that select multiple elements.
• Provide check on duplicate selectors.

Design Proposal

• Having selector support a string. (single selector)
• Having selector support an array. (multi selector)
  • Analytics will query every selector in the array. For example "selector": ["A", "B"]
  • Analytics will also trigger on every element if single selector selects multiple elements. For example "selector" : ['*']
  • Analytics will also trigger on every element if single selector selects multiple elements. For example
• User can specify the data-attribute in each selected element to get information on what the event trigger target is.
• selectionMethod should remain same for every selector in the array.

Example

"triggerAB" {
  "on": "visible"
  selector: ["A", "B"]
}

equals to

"triggerAB" {
  "on": "visible"
  selector: ["A, B"]
}

equals to

"triggerA" {
  "on": "visible"
  selector: "A"
}

"triggerB" {
  "on": "visible"
  selector: "B"
}

Questions
Misconfig detection
Duplicate selected elements