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author | Rafael França <rafaelmfranca@gmail.com> | 2016-12-29 02:18:38 -0500 |
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committer | GitHub <noreply@github.com> | 2016-12-29 02:18:38 -0500 |
commit | eb6a6141a66e052deb58580448d7c0fa6aa675ba (patch) | |
tree | 0017a57044ec8e466c97cc6b7879d39caa6c1ffa /actionview/app/assets/javascripts/utils/event.coffee | |
parent | 447e1a48811fa053e8bef954376d1ad47bdb5cef (diff) | |
parent | fcec126eaa4f835c837bc75efa78008667b2ec5b (diff) | |
download | rails-eb6a6141a66e052deb58580448d7c0fa6aa675ba.tar.gz rails-eb6a6141a66e052deb58580448d7c0fa6aa675ba.tar.bz2 rails-eb6a6141a66e052deb58580448d7c0fa6aa675ba.zip |
Merge branch 'master' into clear_all_environments_log_by_default
Diffstat (limited to 'actionview/app/assets/javascripts/utils/event.coffee')
-rw-r--r-- | actionview/app/assets/javascripts/utils/event.coffee | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/actionview/app/assets/javascripts/utils/event.coffee b/actionview/app/assets/javascripts/utils/event.coffee new file mode 100644 index 0000000000..049b2a3ecd --- /dev/null +++ b/actionview/app/assets/javascripts/utils/event.coffee @@ -0,0 +1,40 @@ +#= require ./dom + +{ matches } = Rails + +# Polyfill for CustomEvent in IE9+ +# https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill +CustomEvent = window.CustomEvent + +if typeof CustomEvent is 'function' + CustomEvent = (event, params) -> + evt = document.createEvent('CustomEvent') + evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail) + evt + CustomEvent.prototype = window.Event.prototype + +# Triggers an custom event on an element and returns false if the event result is false +fire = Rails.fire = (obj, name, data) -> + event = new CustomEvent( + name, + bubbles: true, + cancelable: true, + detail: data, + ) + obj.dispatchEvent(event) + !event.defaultPrevented + +# Helper function, needed to provide consistent behavior in IE +Rails.stopEverything = (e) -> + fire(e.target, 'ujs:everythingStopped') + e.preventDefault() + e.stopPropagation() + e.stopImmediatePropagation() + +Rails.delegate = (element, selector, eventType, handler) -> + element.addEventListener eventType, (e) -> + target = e.target + target = target.parentNode until not (target instanceof Element) or matches(target, selector) + if target instanceof Element and handler.call(target, e) == false + e.preventDefault() + e.stopPropagation() |