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ImageLoader: move from image.js

master
Stephan Bösch-Plepelits 7 years ago
parent
ebdf62a5a4
commit
73b2dc6698
2 changed files with 192 additions and 191 deletions
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  1. 192
      src/image.js
  2. 191
      src/imageLoader.js

192
src/image.js
View File

@ -1,5 +1,4 @@
var wikidata = require('./wikidata')
var cache = {}
var imageLoader = require('./imageLoader')
var showTimer
function showImage (url, dom) {
@ -33,195 +32,6 @@ function show(img, options, div) {
}
}
function imageLoader (data) {
if (this === window) {
if (data.id in cache) {
return cache[data.id]
}
return new imageLoader(data)
}
this.index = null
this.sources = []
this.found = []
this.data = {}
if (data.object.tags.image) {
img = data.object.tags.image
if (img.indexOf('File:') === 0) {
id = img.substr(5)
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else if (img.indexOf('http://commons.wikimedia.org/wiki/File:') === 0) {
id = decodeURIComponent(img.substr(39)).replace(/_/g, ' ')
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else if (img.indexOf('https://commons.wikimedia.org/wiki/File:') === 0) {
id = decodeURIComponent(img.substr(40)).replace(/_/g, ' ')
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else {
this.found.push(img)
this.data[img] = {
id: img,
type: 'url'
}
}
}
if (data.object.tags.wikidata) {
this.sources.push({
type: 'wikidata',
value: data.object.tags.wikidata
})
}
if (data.object.tags.wikimedia_commons) {
this.sources.push({
type: 'wikimedia_commons',
value: data.object.tags.wikimedia_commons,
})
}
cache[data.id] = this
}
imageLoader.prototype.loadWikidata = function (src, callback) {
var value = src.value
wikidata.load(value, function (err, result) {
if (result && result.claims && result.claims.P18) {
result.claims.P18.forEach(function (d) {
id = d.mainsnak.datavalue.value
if (this.found.indexOf(id) === -1) {
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
}
}.bind(this))
}
callback(err)
}.bind(this))
}
imageLoader.prototype.loadWikimediaCommons = function (src, callback) {
var value = src.value
if (value.substr(0, 9) === 'Category:') {
ajax('wikimedia', { page: value }, function (result) {
if (result.images) {
result.images.forEach(function (d) {
if (this.found.indexOf(d) === -1) {
this.found.push(d)
this.data[d] = {
id: d,
type: 'wikimedia'
}
}
}.bind(this))
}
callback(null)
}.bind(this))
} else if (value.substr(0, 5) === 'File:') {
var id = value.substr(5)
if (this.found.indexOf(id) === -1) {
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
}
callback(null)
} else {
callback(new Error('Can\'t parse value'))
}
}
imageLoader.prototype.handlePending = function () {
var pending = this.pendingCallbacks
delete this.pendingCallbacks
pending.forEach(function (c) {
this.callbackCurrent(c)
}.bind(this))
}
imageLoader.prototype.callbackCurrent = function (callback, wrap) {
if (this.index < this.found.length) {
return callback(null, this.data[this.found[this.index]])
}
if (this.pendingCallbacks) {
this.pendingCallbacks.push(callback)
return
}
if (this.sources.length) {
var src = this.sources.shift()
this.pendingCallbacks = [ callback ]
if (src.type === 'wikimedia_commons') {
this.loadWikimediaCommons(src, this.handlePending.bind(this))
} else if (src.type === 'wikidata') {
this.loadWikidata(src, this.handlePending.bind(this))
}
return
}
if (wrap && this.found.length) {
this.index = 0
return this.callbackCurrent(callback)
}
callback(null, null)
}
imageLoader.prototype.first = function (callback) {
this.index = 0
this.callbackCurrent(callback)
}
imageLoader.prototype.next = function (callback) {
if (this.index === null) {
this.index = 0
} else {
this.index ++
}
this.callbackCurrent(callback)
}
imageLoader.prototype.nextWrap = function (callback) {
if (this.index === null) {
this.index = 0
} else {
this.index ++
}
this.callbackCurrent(callback, true)
}
window.imageLoader = imageLoader
register_hook('show-details', function (data, category, dom, callback) {
var found = 0
var div = document.createElement('div')

191
src/imageLoader.js
View File

@ -0,0 +1,191 @@
var wikidata = require('./wikidata')
var cache = {}
function imageLoader (data) {
if (this === window) {
if (data.id in cache) {
return cache[data.id]
}
return new imageLoader(data)
}
this.index = null
this.sources = []
this.found = []
this.data = {}
if (data.object.tags.image) {
img = data.object.tags.image
if (img.indexOf('File:') === 0) {
id = img.substr(5)
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else if (img.indexOf('http://commons.wikimedia.org/wiki/File:') === 0) {
id = decodeURIComponent(img.substr(39)).replace(/_/g, ' ')
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else if (img.indexOf('https://commons.wikimedia.org/wiki/File:') === 0) {
id = decodeURIComponent(img.substr(40)).replace(/_/g, ' ')
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
} else {
this.found.push(img)
this.data[img] = {
id: img,
type: 'url'
}
}
}
if (data.object.tags.wikidata) {
this.sources.push({
type: 'wikidata',
value: data.object.tags.wikidata
})
}
if (data.object.tags.wikimedia_commons) {
this.sources.push({
type: 'wikimedia_commons',
value: data.object.tags.wikimedia_commons,
})
}
cache[data.id] = this
}
imageLoader.prototype.loadWikidata = function (src, callback) {
var value = src.value
wikidata.load(value, function (err, result) {
if (result && result.claims && result.claims.P18) {
result.claims.P18.forEach(function (d) {
id = d.mainsnak.datavalue.value
if (this.found.indexOf(id) === -1) {
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
}
}.bind(this))
}
callback(err)
}.bind(this))
}
imageLoader.prototype.loadWikimediaCommons = function (src, callback) {
var value = src.value
if (value.substr(0, 9) === 'Category:') {
ajax('wikimedia', { page: value }, function (result) {
if (result.images) {
result.images.forEach(function (d) {
if (this.found.indexOf(d) === -1) {
this.found.push(d)
this.data[d] = {
id: d,
type: 'wikimedia'
}
}
}.bind(this))
}
callback(null)
}.bind(this))
} else if (value.substr(0, 5) === 'File:') {
var id = value.substr(5)
if (this.found.indexOf(id) === -1) {
this.found.push(id)
this.data[id] = {
id: id,
type: 'wikimedia'
}
}
callback(null)
} else {
callback(new Error('Can\'t parse value'))
}
}
imageLoader.prototype.handlePending = function () {
var pending = this.pendingCallbacks
delete this.pendingCallbacks
pending.forEach(function (c) {
this.callbackCurrent(c)
}.bind(this))
}
imageLoader.prototype.callbackCurrent = function (callback, wrap) {
if (this.index < this.found.length) {
return callback(null, this.data[this.found[this.index]])
}
if (this.pendingCallbacks) {
this.pendingCallbacks.push(callback)
return
}
if (this.sources.length) {
var src = this.sources.shift()
this.pendingCallbacks = [ callback ]
if (src.type === 'wikimedia_commons') {
this.loadWikimediaCommons(src, this.handlePending.bind(this))
} else if (src.type === 'wikidata') {
this.loadWikidata(src, this.handlePending.bind(this))
}
return
}
if (wrap && this.found.length) {
this.index = 0
return this.callbackCurrent(callback)
}
callback(null, null)
}
imageLoader.prototype.first = function (callback) {
this.index = 0
this.callbackCurrent(callback)
}
imageLoader.prototype.next = function (callback) {
if (this.index === null) {
this.index = 0
} else {
this.index ++
}
this.callbackCurrent(callback)
}
imageLoader.prototype.nextWrap = function (callback) {
if (this.index === null) {
this.index = 0
} else {
this.index ++
}
this.callbackCurrent(callback, true)
}
module.exports = imageLoader
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