mirror of
https://github.com/flynx/ImageGrid.git
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154 lines
3.5 KiB
JavaScript
Executable File
154 lines
3.5 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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define(function(require){ var module = {}
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module.VERSIONS = []
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/*********************************************************************/
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// Convert legacy Gen1 data format to Gen3 format version 2.0+
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//
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// XXX external deps:
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// imageDateCmp
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//module.convertDataGen1 =
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module.VERSIONS['2.0'] =
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function(data, cmp){
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var res = {
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data: {
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version: '2.0',
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current: null,
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ribbons: [],
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order: [],
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},
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images: {}
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}
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cmp = cmp == null ?
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function(a, b){
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return imageDateCmp(a, b, null, res.images)
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}
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: cmp
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var ribbons = res.data.ribbons
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var order = res.data.order
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var images = res.images
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// position...
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res.data.current = data.position
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// ribbons and images...
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data.ribbons.forEach(function(input_images, i){
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var ribbon = []
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ribbons.push(ribbon)
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for(var id in input_images){
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var image = input_images[id]
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ribbon.push(id)
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order.push(id)
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images[id] = image
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}
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cmp && ribbon.sort(cmp)
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})
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cmp && order.sort(cmp)
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// XXX STUB
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res.data.current = order[0]
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return res
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}
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// Convert gen3 data to gen4 v3.0+...
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//
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// NOTE: this will just convert the JSON format and will not construct
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// the Data object...
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// NOTE: this uses require('data').Data().newGid(..) for ribbon gid
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// generation...
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//
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module.VERSIONS['3.0'] =
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function(data){
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data = data.version < '2.0' ? module.VERSIONS['2.0'](data) : data
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// XXX is this the right way to go???
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var that = require('data').Data()
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var res = {}
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res.version = '3.0'
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res.current = data.current
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res.order = data.order.slice()
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res.ribbon_order = data.ribbon_order == null ? [] : data.ribbon_order.slice()
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res.ribbons = {}
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// generate gids...
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// NOTE: this will use the structures stored in data if available,
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// otherwise new structures will be generated...
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// NOTE: we need to do this anyway as we also need to deep-copy the
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// ribbons...
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var keys = data.ribbon_order != null
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? data.ribbon_order
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: Object.keys(data.ribbons)
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keys.forEach(function(k){
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var gid = k*1 == null ? k : that.newGid()
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res.ribbon_order.push(gid)
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res.ribbons[gid] = data.ribbons[k].slice()
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})
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// we set the base to the first ribbon...
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res.base = data.base == null ? res.ribbon_order[0] : res.base
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return res
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}
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/* This is best kept as a separate entity...
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// XXX EXPERIMENTAL...
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module.VERSIONS['3.1'] =
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function(data){
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res = module.VERSIONS['3.0'](data)
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res.version = '3.1'
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res.order_list = data.order_list != null ? JSON.parse(JSON.stringify(data.order_list)) : null
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return res
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}
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*/
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// Get latest updater version...
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//
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module.getLatestUpdaterVersion = function(){
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return Object.keys(module.VERSIONS).sort().pop()
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}
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/*********************************************************************/
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// Update data (JSON) to latest version...
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//
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// This is the main entry point in this module.
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//
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// Takes any compatable JSON data version and converts it to the latest
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// format.
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// NOTE: if data is already in the latest format this will return it
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// as-is.
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module.updateData = function(data){
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var v = module.getLatestUpdaterVersion()
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return data.version < v
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? module.VERSIONS[v](data)
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: data
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}
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/**********************************************************************
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* vim:set ts=4 sw=4 : */
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return module })
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