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81 lines
1.9 KiB
CoffeeScript
81 lines
1.9 KiB
CoffeeScript
ScrollView = require 'scroll-view'
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_ = require 'underscore'
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$ = require 'jquery'
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module.exports =
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class ImageView extends ScrollView
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@content: ->
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@div class: 'image-view', tabindex: -1, =>
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@img outlet: 'image'
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initialize: (imageEditSession) ->
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super
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requireStylesheet 'image-view'
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@image.load =>
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@originalHeight = @image.height()
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@originalWidth = @image.width()
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@loaded = true
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@centerImage()
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@setPath(imageEditSession?.getPath())
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@subscribe $(window), 'resize', _.debounce((=> @centerImage()), 300)
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@command 'image-view:zoom-in', => @zoomIn()
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@command 'image-view:zoom-out', => @zoomOut()
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@command 'image-view:reset-zoom', => @resetZoom()
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afterAttach: (onDom) ->
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return unless onDom
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if pane = @getPane()
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@active = @is(pane.activeView)
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@subscribe pane, 'pane:active-item-changed', (event, item) =>
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wasActive = @active
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@active = @is(pane.activeView)
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@centerImage() if @active and not wasActive
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centerImage: ->
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return unless @loaded and @isVisible()
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@image.css
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'top': Math.max((@height() - @image.outerHeight()) / 2, 0)
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'left': Math.max((@width() - @image.outerWidth()) / 2, 0)
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@image.show()
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setPath: (path) ->
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if path?
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if @image.attr('src') isnt path
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@loaded = false
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@image.hide().attr('src', path)
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else
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@image.hide()
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setModel: (imageEditSession) ->
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@setPath(imageEditSession?.getPath())
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getPane: ->
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@parent('.item-views').parent('.pane').view()
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adjustSize: (factor) ->
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return unless @loaded and @isVisible()
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newWidth = @image.width() * factor
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newHeight = @image.height() * factor
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@image.width(newWidth)
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@image.height(newHeight)
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@centerImage()
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zoomOut: ->
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@adjustSize(0.9)
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zoomIn: ->
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@adjustSize(1.1)
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resetZoom: ->
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return unless @loaded and @isVisible()
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@image.width(@originalWidth)
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@image.height(@originalHeight)
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@centerImage()
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