mirror of
https://github.com/flynx/ImageGrid.git
synced 2025-10-29 18:30:09 +00:00
574 lines
14 KiB
JavaScript
Executable File
574 lines
14 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)
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(function(require){ var module={} // make module AMD/node compatible...
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/*********************************************************************/
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if(typeof(window) == 'undefined'){
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return
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}
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//var DEBUG = DEBUG != null ? DEBUG : true
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var object = require('lib/object')
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/*********************************************************************/
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// convert a transform string to an object...
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//
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// Format:
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// {
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// <func>: [<arg>, ...],
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// ...
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// }
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//
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// NOTE: this does not care about the semantics of the format, just the
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// general structure...
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var transform2obj = function(str){
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var res = {}
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str = str || ''
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// parse the string...
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str
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// split functions...
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.split(/(\w+\([^\)]*)\)/)
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// remove empty strings...
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.filter(function(e){ return e.trim().length > 0})
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// split each function...
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.map(function(e){ return e
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// split args...
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.split(/\s*[\(,\s]\s*/)
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// cleanup...
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.filter(function(e){ return e.trim().length > 0 }) })
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// build the structure...
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.forEach(function(data){
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var func = data.shift()
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var args = data
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res[func] = data
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})
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return res
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}
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// Convert the object similar in structure to the produced by
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// transform2obj(..) to a transform string...
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//
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// NOTE: this does not care about the actual semantics of the format,
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// e.g. argument units or function names...
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var obj2transform = function(obj, filter){
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// build the filters...
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filter = filter || []
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var keep = filter
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.filter(function(f){ return f[0] != '-' })
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var remove = filter
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.filter(function(f){ return f[0] == '-' })
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.map(function(f){ return f.slice(1) })
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return Object.keys(obj)
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// keep...
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.filter(function(func){
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return keep.length == 0 || keep.indexOf(func) >= 0 })
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// remove...
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.filter(function(func){
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return remove.indexOf(func) < 0 })
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.map(function(func){
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return func +'('+ obj[func].join(', ') + ')'
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})
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.join(' ')
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}
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// XXX add support for units and unit unification...
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// XXX BUG: passing '' to an alias will clear ALL the aliased functions...
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// ...should clear only full matches...
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// XXX BUG: passing '' to a multi-arg function will clear the args but
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// still keep the function...
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// XXX BUG: setting a single arg alias will return string results...
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// .x(123) -> ['123px'] -> must be [123]
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// .x() -> [123]
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// .translate3d(1,2,3)
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// -> [1, 2, 3]
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// NOTE: both set data correctly...
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// XXX add argument in place operations...
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// +=
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// -=
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// *=
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// /=
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// XXX move the grammar out of this...
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// XXX need:
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// - a way to minimize this, i.e. get only full and minimal functions...
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// - a way to get what was defined as-is...
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// XXX STUB: .simplify(..) should be rewritten and be configurable...
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// ...preferable work on write -- set the alias that already esists
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// and ignore the rest...
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// XXX make aliases collect and merge data, e.g. asking for scale with
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// scaleX and scaleY set should return the combination of the two
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// results...
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// XXX not critical yet but will need to support for completeness...
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// - transformStyle
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// - prespective
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// - prespectiveOrigin
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// - backfaceVisibility
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// XXX add transitions...
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// XXX add support for vendor tags...
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var transformEditor = function(){
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var editor = {
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// data set...
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data: {},
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// function that directly edit the data...
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__direct: {},
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// methods...
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// XXX generate this...
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simplify: function(filter){
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var data = this.data
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// scale...
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if(data.scale
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&& data.scale[0] == 1
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&& data.scale[1] == 1){ delete data.scale }
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if((data.scaleX||[1])[0] == 1){ delete data.scaleX }
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if((data.scaleY||[1])[0] == 1){ delete data.scaleY }
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// translate...
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if(data.translate
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&& data.translate.len == 2
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&& parseFloat(data.translate[0]) == 0
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&& parseFloat(data.translate[1]) == 0){ delete data.translate }
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if(data.translate3d
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&& data.translate3d.len == 3
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&& parseFloat(data.translate3d[0]) == 0
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&& parseFloat(data.translate3d[1]) == 1
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&& parseFloat(data.translate3d[2]) == 1){ delete data.translate3d }
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if(parseFloat((data.translateX||[1])[0]) == 0){ delete data.translateX }
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if(parseFloat((data.translateY||[1])[0]) == 0){ delete data.translateY }
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if(parseFloat((data.translateZ||[1])[0]) == 0){ delete data.translateZ }
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// XXX rotate...
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// XXX skew...
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return this.data
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},
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toString: function(){
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//return obj2transform(this.data, [...arguments])
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var args = [...arguments]
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return obj2transform(this.simplify(args), args)
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},
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// NOTE: this will not build the alias data...
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fromString: function(str){
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this.data = transform2obj(str)
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return this
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},
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// XXX use vendor prefix...
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toElem: function(elem){
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var origin = this.data.origin || ''
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var transform = this.toString('-origin')
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elem = elem instanceof jQuery ? elem.toArray()
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: elem instanceof Array ? elem
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: [elem]
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var e
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for(var i = 0; i < elem.length; i++){
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e = elem[i]
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e.style.transformOrigin = origin.join ? origin.join(' ') : origin
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e.style.transform = transform
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}
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/*
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elem.forEach(function(e){
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e.style.transformOrigin = origin.join ? origin.join(' ') : origin
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e.style.transform = transform
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})
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*/
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return this
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},
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// get data by attr names...
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get: function(){
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var that = this
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var attrs = arguments[0] instanceof Array ?
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arguments[0]
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: [...arguments]
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var res = {}
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attrs.forEach(function(a){
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if(!(a in that)){
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return
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}
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var v = that[a]()
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v = v.length == 1 ? v.pop()
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: v.length == 0 ? undefined
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: v
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res[a] = v
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})
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if(attrs.length == 1){
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return res[attrs[0]]
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}
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return res
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},
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// XXX use vendor prefix...
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__init__: function(str){
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this.data = {}
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if(str != null){
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if(str instanceof jQuery){
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str = str[0]
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}
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if(str instanceof HTMLElement){
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var origin = str.style.transformOrigin
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origin = origin.length > 0 ? ' origin('+ origin +')' : ''
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str = str.style.transform + origin
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}
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this.fromString(str)
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}
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},
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}
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var func = function(name, args, neutral){
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args = args || []
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editor.__direct[name] = function(val){
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var that = this
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// set...
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if(val != null && val != ''){
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val = val instanceof Array ? val : [val]
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var data = this.data[name] = this.data[name] || []
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var res = []
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// add units and general processing...
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val.map(function(arg, i){
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// special case, if an arg is undefined do not change it...
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if(arg === undefined){
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return
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}
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var unit = args[i] || ''
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data[i] = typeof(arg) == typeof(123)
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|| (typeof(arg) == typeof('str')
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&& /^-?[0-9\.]+$/.test(arg)) ? arg + unit
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: arg == '' ? neutral + unit
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: arg
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res[i] = arg
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})
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return res
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// delete...
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} else if(val == ''){
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delete this.data[name]
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// get...
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} else {
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var res = (this.data[name] || [])
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// remove default unit...
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.map(function(arg, i){
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var unit = args[i] || ''
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return arg.slice(-unit.length) == unit
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|| /^-?[0-9\.]+$/.test(arg)?
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parseFloat(arg)
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: arg
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})
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return res
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}
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}
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}
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var alias = function(spec, reduce, mode){
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reduce = reduce || 'last'
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// can be:
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// 'first'
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// 'last'
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// 'all'
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mode = mode || 'first'
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// alias runner...
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var handler = function(alias, args){
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var that = this
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// we only care for the source argument and only it will get
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// passed next...
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// NOTE: this is the name of the called alias...
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var arg = args[spec[alias]]
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var aliases = Object.keys(spec)
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var r = reduce == 'sum' ? function(a, b){
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return a == 0 ? b
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: b == 0 ? a
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: a == 0 && b == 0 ? 0
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: a + b }
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: reduce == 'mul' ? function(a, b){ return a * b }
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: reduce == 'last' ? function(a, b){ return b != null ? b : a }
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: reduce
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var n = reduce == 'sum' ? 0
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: reduce == 'mul' ? 1
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: 0
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return aliases.map(function(k, j){
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var i = spec[k]
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// get state...
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if(args.length == 0){
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var res = k in that.__direct ?
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that.__direct[k].call(that)
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: null
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return res != null ? res[i] : res
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}
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// prepare arguments...
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var a = []
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a[i] = mode == 'first' && j == 0 ? arg
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: mode == 'last' && j == aliases.length - 1 ? arg
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: reduce == 'sum' ? 0
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: reduce == 'mul' ? 1
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: arg
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// do the call...
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var res = k in that.__direct ?
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that.__direct[k].call(that, a)
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: null
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return res != null ? res[i] : res
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})
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.filter(function(e){ return e != null })
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.reduce(r, n)
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// XXX for some magical reason this breaks if...
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// t = transformEditor($('.ribbon-set'))
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// t.x() // works ok
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// var x = t.data
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// t.x() // now this breaks because reduce is 0...
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/*
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.reduce(reduce == 'sum' ? function(a, b){ return a + b }
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: reduce == 'mul' ? function(a, b){ return a * b }
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: reduce == 'last' ? function(a, b){ return b != null ? b : a }
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: reduce,
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reduce == 'mul' ? 1
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: reduce = 'sum'? 0
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: 0)
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*/
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}
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// setup the aliases...
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var aliases = Object.keys(spec)
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mode == 'last' && aliases.reverse()
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aliases.forEach(function(k){
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var i = spec[k]
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var func = i instanceof Function ? i : handler
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// NOTE: we will pass the called alias name to the handler
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// via 'this'...
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var f = editor[k]
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var alias = editor[k] = f ?
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// wrap the original alias...
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// NOTE: this will iterate the overloaded aliases...
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// i.e. this will iterate the arguments (width) while
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// the handler(..) will iterate the aliases...
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function(){
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var args = [...arguments]
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// XXX do a full search through the alias values and merge results...
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if(args.length == 0 && k in this.__direct){
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return this.__direct[k].call(this)
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}
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var a = f.apply(this, args)
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var b = func.call(this, k, args)
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if(k in this.__direct){
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return this.__direct[k].call(this)
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}
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return b
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}
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: function(){
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var args = [...arguments]
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return func.call(this, k, args)
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}
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alias.isAlias = true
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alias.reduce = reduce
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})
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}
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// XXX get these from grammar...
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// The Grammar...
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func('translate', ['px', 'px'], 0)
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func('translate3d', ['px', 'px', 'px'], 0)
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func('translateX', ['px'], 0)
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func('translateY', ['px'], 0)
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func('translateZ', ['px'], 0)
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alias({ translate3d: 0, translate: 0, translateX: 0, x: 0 }, 'sum')
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alias({ translate3d: 1, translate: 1, translateY: 0, y: 0, }, 'sum')
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alias({ translate3d: 2, translateZ: 0, z: 0, }, 'sum')
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func('scale', ['', ''], 1)
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//func('scale3d', ['', '', ''])
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func('scaleX', [''], 1)
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func('scaleY', [''], 1)
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//func('scaleZ')
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alias({ scale: 0, /*scale3d: 0,*/ scaleX: 0, }, 'mul')
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alias({ scale: 1, /*scale3d: 1,*/ scaleY: 0, }, 'mul')
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//alias({ scale3d: 2, scaleZ: 0, }, 'mul')
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// special case: single arg scale: scale(n) -> scale(n, n)
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editor._scale = editor.scale
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editor.scale = function(){
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if(arguments.length == 1
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&& arguments[0] != ''
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&& arguments[0] != '='){
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return this._scale.call(this, arguments[0], arguments[0])
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}
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var res = this._scale.apply(this, arguments)
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// is this correct here???
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return res.length == 2 && res[0] == res[1] ? res[0] : res
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}
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func('rotate', ['deg'], 0)
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func('rotate3d', ['px', 'px', 'px', 'deg'], 0)
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func('rotateX', ['deg'], 0)
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func('rotateY', ['deg'], 0)
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func('rotateZ', ['deg'], 0)
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func('matrix') // XXX ???
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func('matrix3d', [
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'', '', '', '',
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'', '', '', '',
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'', '', '', '',
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'', '', '', '',
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])
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func('skew', ['', ''], 0)
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func('skewX', [''], 0)
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func('skewY', [''], 0)
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alias({skewX: 0, skew: 0}, 'sum')
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alias({skewY: 0, skew: 1}, 'sum')
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func('perspective')
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// non-transform functions...
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func('origin', ['px', 'px', 'px'], 0)
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// proxy the undefined in aliases functions...
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Object.keys(editor.__direct).forEach(function(k){
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if(!(k in editor)){
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editor[k] = function(){
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var args = [...arguments]
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editor.__direct[k].apply(this, args.length > 0 ? [args]: [])
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return editor.__direct[k].call(this)
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}
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}
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})
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return editor
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}
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|
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|
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var TransformEditor =
|
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module.TransformEditor =
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object.Constructor('TransformEditor', transformEditor())
|
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|
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// XXX STUB: for testing only...
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window.transformEditor = TransformEditor
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|
|
|
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// jQuery API for the TransformEditor...
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jQuery.fn.transform = function(){
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var e = $(this)
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var elem = e[0]
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|
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var args = [...arguments]
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// normalize...
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args = args.length == 0
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|| typeof(args[0]) == typeof('str') ? args
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: args[0].constructor === Array
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|| args.length == 1 ? args[0]
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: args
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// load the current state...
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var transform = TransformEditor(elem)
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// get state...
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if(args.constructor === Array){
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if(args.length == 0){
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// XXX get all attrs...
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// XXX
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return
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}
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// get requested attrs...
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return transform.get(args)
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|
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// set state...
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} else {
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var v
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|
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// load user inputs...
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for(var k in args){
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if(!(k in transform)){
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continue
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}
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v = args[k]
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transform[k].apply(transform, v instanceof Array ? v : [v])
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}
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transform.toElem(this)
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}
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return e
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}
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// shorthands...
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jQuery.fn.scale = function(value){
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if(arguments.length > 0){
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return $(this).transform({scale: [...arguments]})
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|
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} else {
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return $(this).transform('scale')
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}
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}
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jQuery.fn.rotate = function(value){
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if(arguments.length > 0){
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return $(this).transform({rotate: [...arguments]})
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} else {
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return $(this).transform('rotate')
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}
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}
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// get element scale...
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jQuery.fn.rscale = function(){
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var res = 1
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$(this).parents().toArray().forEach(function(e){
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res *= $(e).scale() || 1
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})
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return res
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}
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jQuery.fn.origin = function(a, b, c){
|
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if(a != null && b != null){
|
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return $(this).transform({origin: [a, b, c == null ? 0 : c]})
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|
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} else if(a == '' || a instanceof Array){
|
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return $(this).transform({origin: a})
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|
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} else {
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return $(this).transform('origin')
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}
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}
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/**********************************************************************
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* vim:set ts=4 sw=4 : */ return module })
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