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require "./test_helper.js"
extend(global, require "../../lib/handler_stack.js")
context "handlerStack",
setup ->
stub global, "DomUtils", {}
stub DomUtils, "suppressEvent", ->
stub DomUtils, "suppressPropagation", ->
@handlerStack = new HandlerStack
@handler1Called = false
@handler2Called = false
should "bubble events", ->
@handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: => @handler2Called = true }
@handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isTrue @handler1Called
should "terminate bubbling on falsy return value", ->
@handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: => @handler2Called = true; false }
@handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isFalse @handler1Called
should "terminate bubbling on passEventToPage, and be true", ->
@handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: => @handler2Called = true; @handlerStack.passEventToPage }
assert.isTrue @handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isFalse @handler1Called
should "terminate bubbling on passEventToPage, and be false", ->
@handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: => @handler2Called = true; @handlerStack.suppressPropagation }
assert.isFalse @handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isFalse @handler1Called
should "restart bubbling on restartBubbling", ->
@handler1Called = 0
@handler2Called = 0
id = @handlerStack.push { keydown: => @handler1Called++; @handlerStack.remove(id); @handlerStack.restartBubbling }
@handlerStack.push { keydown: => @handler2Called++; true }
assert.isTrue @handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler1Called == 1
assert.isTrue @handler2Called == 2
should "remove handlers correctly", ->
@handlerStack.push { keydown: => @handler1Called = true }
handlerId = @handlerStack.push { keydown: => @handler2Called = true }
@handlerStack.remove handlerId
@handlerStack.bubbleEvent 'keydown', {}
assert.isFalse @handler2Called
assert.isTrue @handler1Called
should "remove handlers correctly", ->
handlerId = @handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: => @handler2Called = true }
@handlerStack.remove handlerId
@handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isFalse @handler1Called
should "handle self-removing handlers correctly", ->
ctx = this
@handlerStack.push { keydown: => @handler1Called = true }
@handlerStack.push { keydown: ->
ctx.handler2Called = true
@remove()
}
@handlerStack.bubbleEvent 'keydown', {}
assert.isTrue @handler2Called
assert.isTrue @handler1Called
assert.equal @handlerStack.stack.length, 1
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