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de3bbce29f
Also, auto-generate human readable event name in editor. This is a good example of how we could do this automatically for some kind of `onCommand`, `command`, `onInteractiveEvent` method that combines the event name, documentation string, and handler in one shot.
78 lines
2.1 KiB
CoffeeScript
78 lines
2.1 KiB
CoffeeScript
$ = require 'jquery'
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{$$} = require 'space-pen'
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describe 'jQuery extensions', ->
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describe '$.fn.preempt(eventName, handler)', ->
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[returnValue, element, events] = []
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beforeEach ->
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returnValue = undefined
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element = $("<div>")
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events = []
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element.on 'foo', -> events.push(1)
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element.preempt 'foo', ->
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events.push(2)
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returnValue
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element.on 'foo', -> events.push(3)
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it 'calls the preempting handler before all others', ->
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element.trigger 'foo'
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expect(events).toEqual [2,1,3]
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describe 'when handler returns false', ->
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it 'does not call subsequent handlers', ->
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returnValue = false
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element.trigger 'foo'
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expect(events).toEqual [2]
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describe 'when the event is namespaced', ->
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it 'calls handler', ->
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element.preempt 'foo.bar', -> events.push(4)
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element.trigger 'foo'
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expect(events).toEqual [4,2,1,3]
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events = []
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element.trigger 'foo.bar'
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expect(events).toEqual [4]
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events = []
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element.off('.bar')
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element.trigger 'foo'
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expect(events).toEqual [2,1,3]
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describe "$.fn.events() and $.fn.document", ->
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it "returns a list of all events being listened for on the target node or its ancestors, along with their documentation string", ->
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view = $$ ->
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@div id: 'a', =>
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@div id: 'b', =>
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@div id: 'c'
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@div id: 'd'
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view.document
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'a1': "This is event A2"
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'b2': "This is event b2"
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view.document 'a1': "A1: Waste perfectly-good steak"
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view.on 'a1', ->
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view.on 'a2', ->
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view.on 'b1', -> # should not appear as a duplicate
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divB = view.find('#b')
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divB.document
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'b1': "B1: Super-sonic bomber"
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'b2': "B2: Looks evil. Kinda is."
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divB.on 'b1', ->
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divB.on 'b2', ->
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view.find('#c').on 'c', ->
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view.find('#d').on 'd', ->
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expect(view.find('#c').events()).toEqual
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'c': null
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'b1': "B1: Super-sonic bomber"
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'b2': "B2: Looks evil. Kinda is."
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'a1': "A1: Waste perfectly-good steak"
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'a2': null
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