96 lines
2.8 KiB
CoffeeScript
96 lines
2.8 KiB
CoffeeScript
#
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# Crafting Guide - markdown_image_list.coffee
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#
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# Copyright © 2014-2017 by Redwood Labs
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# All rights reserved.
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#
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{BaseModel} = require('crafting-guide-common').deprecated
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MarkdownImage = require './markdown_image'
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########################################################################################################################
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module.exports = class MarkdownImageList extends BaseModel
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constructor: (attributes={}, options={})->
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attributes.imageBase ?= ''
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attributes.markdownText ?= null
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super attributes, options
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@client = options.client
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@_images = {}
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@on c.event.change + ':imageBase', =>
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for fileName, image of @_images
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image.path = @imageBase
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@on c.event.change + ':markdownText', => @_analyzeMarkdownText()
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@_analyzeMarkdownText()
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# Public Methods ###############################################################################
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getFile: (fileName)->
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return @_images[fileName]
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fetchImages: ->
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for fileName, image of @_images
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if image.status is MarkdownImage::Status.unknown
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image.fetch()
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reset: ->
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for fileName, image of @_images
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@stopListening image
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@_images = {}
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@_analyzeMarkdownText()
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# Property Methods #############################################################################
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getAll: ->
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fileNames = (fileName for fileName, image of @_images).sort()
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result = []
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for fileName in fileNames
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result.push @_images[fileName]
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return result
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isValid: ->
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for fileName, image of @_images
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return false unless image.valid
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return true
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Object.defineProperties @prototype,
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all: {get:@prototype.getAll}
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valid: {get:@prototype.isValid}
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# Private Methods ##############################################################################
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_analyzeMarkdownText: ->
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regex = /\!\[([^\]\n]*)\]\(([^\)\n]*)\)/g
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newImages = {}
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changed = false
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if @markdownText?
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while true
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match = regex.exec @markdownText
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break unless match?
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fileName = match[2]
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image = @_images[fileName]
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if not image?
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image = new MarkdownImage {fileName:fileName, path:@imageBase}, {client:@client}
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@listenTo image, c.event.change, => @trigger c.event.change, this
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@trigger c.event.add, this, image
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changed = true
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newImages[fileName] = image
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for fileName, image of @_images
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if not newImages[fileName]?
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@trigger c.event.remove, this, image
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changed = true
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if changed
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@_images = newImages
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@trigger c.event.change, this
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