36 lines
1.1 KiB
CoffeeScript
36 lines
1.1 KiB
CoffeeScript
m = Element.prototype.matches or
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Element.prototype.matchesSelector or
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Element.prototype.mozMatchesSelector or
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Element.prototype.msMatchesSelector or
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Element.prototype.oMatchesSelector or
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Element.prototype.webkitMatchesSelector
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# Checks if the given native dom element matches the selector
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# element::
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# native DOM element
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# selector::
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# CSS selector string or
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# a JavaScript object with `selector` and `exclude` properties
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# Examples: "form", { selector: "form", exclude: "form[data-remote='true']"}
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Rails.matches = (element, selector) ->
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if selector.exclude?
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m.call(element, selector.selector) and not m.call(element, selector.exclude)
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else
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m.call(element, selector)
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# get and set data on a given element using "expando properties"
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# See: https://developer.mozilla.org/en-US/docs/Glossary/Expando
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expando = '_ujsData'
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Rails.getData = (element, key) ->
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element[expando]?[key]
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Rails.setData = (element, key, value) ->
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element[expando] ?= {}
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element[expando][key] = value
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# a wrapper for document.querySelectorAll
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# returns an Array
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Rails.$ = (selector) ->
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Array.prototype.slice.call(document.querySelectorAll(selector))
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