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38 lines
1.2 KiB
CoffeeScript
38 lines
1.2 KiB
CoffeeScript
module.exports =
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class ScrollbarCornerComponent
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constructor: (@presenter) ->
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@domNode = document.createElement('div')
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@domNode.classList.add('scrollbar-corner')
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@contentNode = document.createElement('div')
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@domNode.appendChild(@contentNode)
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@updateSync()
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updateSync: ->
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@oldState ?= {}
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@newState ?= {}
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newHorizontalState = @presenter.state.horizontalScrollbar
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newVerticalState = @presenter.state.verticalScrollbar
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@newState.visible = newHorizontalState.visible and newVerticalState.visible
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@newState.height = newHorizontalState.height
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@newState.width = newVerticalState.width
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if @newState.visible isnt @oldState.visible
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if @newState.visible
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@domNode.style.display = ''
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else
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@domNode.style.display = 'none'
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@oldState.visible = @newState.visible
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if @newState.height isnt @oldState.height
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@domNode.style.height = @newState.height + 'px'
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@contentNode.style.height = @newState.height + 1 + 'px'
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@oldState.height = @newState.height
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if @newState.width isnt @oldState.width
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@domNode.style.width = @newState.width + 'px'
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@contentNode.style.width = @newState.width + 1 + 'px'
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@oldState.width = @newState.width
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