First commit 25/04/2002
This commit is contained in:
248
addons/dynlayer.js
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248
addons/dynlayer.js
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// Dynamic Layer Object
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// sophisticated layer/element targeting and animation object which provides the core functionality needed in most DHTML applications
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// 19990604
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// Copyright (C) 1999 Dan Steinman
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// Distributed under the terms of the GNU Library General Public License
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// Available at http://www.dansteinman.com/dynapi/
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function DynLayer(id,nestref,frame) {
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if (!is.ns5 && !DynLayer.set && !frame) DynLayerInit()
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this.frame = frame || self
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if (is.ns) {
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if (is.ns4) {
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if (!frame) {
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if (!nestref) var nestref = DynLayer.nestRefArray[id]
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if (!DynLayerTest(id,nestref)) return
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this.css = (nestref)? eval("document."+nestref+".document."+id) : document.layers[id]
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}
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else this.css = (nestref)? eval("frame.document."+nestref+".document."+id) : frame.document.layers[id]
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this.elm = this.event = this.css
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this.doc = this.css.document
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}
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else if (is.ns5) {
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this.elm = document.getElementById(id)
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this.css = this.elm.style
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this.doc = document
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}
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this.x = this.css.left
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this.y = this.css.top
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this.w = this.css.clip.width
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this.h = this.css.clip.height
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}
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else if (is.ie) {
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this.elm = this.event = this.frame.document.all[id]
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this.css = this.frame.document.all[id].style
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this.doc = document
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this.x = this.elm.offsetLeft
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this.y = this.elm.offsetTop
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this.w = (is.ie4)? this.css.pixelWidth : this.elm.offsetWidth
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this.h = (is.ie4)? this.css.pixelHeight : this.elm.offsetHeight
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}
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this.id = id
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this.nestref = nestref
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this.obj = id + "DynLayer"
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eval(this.obj + "=this")
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}
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function DynLayerMoveTo(x,y) {
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if (x!=null) {
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this.x = x
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if (is.ns) this.css.left = this.x
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else this.css.pixelLeft = this.x
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}
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if (y!=null) {
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this.y = y
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if (is.ns) this.css.top = this.y
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else this.css.pixelTop = this.y
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}
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}
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function DynLayerMoveBy(x,y) {
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this.moveTo(this.x+x,this.y+y)
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}
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function DynLayerShow() {
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this.css.visibility = (is.ns4)? "show" : "visible"
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}
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function DynLayerHide() {
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this.css.visibility = (is.ns4)? "hide" : "hidden"
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}
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DynLayer.prototype.moveTo = DynLayerMoveTo
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DynLayer.prototype.moveBy = DynLayerMoveBy
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DynLayer.prototype.show = DynLayerShow
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DynLayer.prototype.hide = DynLayerHide
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DynLayerTest = new Function('return true')
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// DynLayerInit Function
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function DynLayerInit(nestref) {
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if (!DynLayer.set) DynLayer.set = true
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if (is.ns) {
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if (nestref) ref = eval('document.'+nestref+'.document')
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else {nestref = ''; ref = document;}
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for (var i=0; i<ref.layers.length; i++) {
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var divname = ref.layers[i].name
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DynLayer.nestRefArray[divname] = nestref
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var index = divname.indexOf("Div")
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if (index > 0) {
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eval(divname.substr(0,index)+' = new DynLayer("'+divname+'","'+nestref+'")')
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}
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if (ref.layers[i].document.layers.length > 0) {
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DynLayer.refArray[DynLayer.refArray.length] = (nestref=='')? ref.layers[i].name : nestref+'.document.'+ref.layers[i].name
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}
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}
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if (DynLayer.refArray.i < DynLayer.refArray.length) {
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DynLayerInit(DynLayer.refArray[DynLayer.refArray.i++])
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}
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}
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else if (is.ie) {
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for (var i=0; i<document.all.tags("DIV").length; i++) {
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var divname = document.all.tags("DIV")[i].id
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var index = divname.indexOf("Div")
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if (index > 0) {
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eval(divname.substr(0,index)+' = new DynLayer("'+divname+'")')
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}
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}
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}
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return true
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}
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DynLayer.nestRefArray = new Array()
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DynLayer.refArray = new Array()
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DynLayer.refArray.i = 0
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DynLayer.set = false
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// Slide Methods
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function DynLayerSlideTo(endx,endy,inc,speed,fn) {
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if (endx==null) endx = this.x
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if (endy==null) endy = this.y
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var distx = endx-this.x
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var disty = endy-this.y
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this.slideStart(endx,endy,distx,disty,inc,speed,fn)
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}
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function DynLayerSlideBy(distx,disty,inc,speed,fn) {
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var endx = this.x + distx
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var endy = this.y + disty
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this.slideStart(endx,endy,distx,disty,inc,speed,fn)
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}
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function DynLayerSlideStart(endx,endy,distx,disty,inc,speed,fn) {
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if (this.slideActive) return
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if (!inc) inc = 10
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if (!speed) speed = 20
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var num = Math.sqrt(Math.pow(distx,2) + Math.pow(disty,2))/inc
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if (num==0) return
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var dx = distx/num
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var dy = disty/num
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if (!fn) fn = null
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this.slideActive = true
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this.slide(dx,dy,endx,endy,num,1,speed,fn)
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}
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function DynLayerSlide(dx,dy,endx,endy,num,i,speed,fn) {
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if (!this.slideActive) return
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if (i++ < num) {
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this.moveBy(dx,dy)
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this.onSlide()
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if (this.slideActive) setTimeout(this.obj+".slide("+dx+","+dy+","+endx+","+endy+","+num+","+i+","+speed+",\""+fn+"\")",speed)
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else this.onSlideEnd()
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}
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else {
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this.slideActive = false
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this.moveTo(endx,endy)
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this.onSlide()
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this.onSlideEnd()
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eval(fn)
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}
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}
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function DynLayerSlideInit() {}
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DynLayer.prototype.slideInit = DynLayerSlideInit
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DynLayer.prototype.slideTo = DynLayerSlideTo
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DynLayer.prototype.slideBy = DynLayerSlideBy
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DynLayer.prototype.slideStart = DynLayerSlideStart
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DynLayer.prototype.slide = DynLayerSlide
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DynLayer.prototype.onSlide = new Function()
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DynLayer.prototype.onSlideEnd = new Function()
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// Clip Methods
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function DynLayerClipInit(clipTop,clipRight,clipBottom,clipLeft) {
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if (is.ie) {
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if (arguments.length==4) this.clipTo(clipTop,clipRight,clipBottom,clipLeft)
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else if (is.ie4) this.clipTo(0,this.css.pixelWidth,this.css.pixelHeight,0)
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}
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}
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function DynLayerClipTo(t,r,b,l) {
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if (t==null) t = this.clipValues('t')
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if (r==null) r = this.clipValues('r')
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if (b==null) b = this.clipValues('b')
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if (l==null) l = this.clipValues('l')
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if (is.ns) {
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this.css.clip.top = t
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this.css.clip.right = r
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this.css.clip.bottom = b
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this.css.clip.left = l
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}
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else if (is.ie) this.css.clip = "rect("+t+"px "+r+"px "+b+"px "+l+"px)"
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}
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function DynLayerClipBy(t,r,b,l) {
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this.clipTo(this.clipValues('t')+t,this.clipValues('r')+r,this.clipValues('b')+b,this.clipValues('l')+l)
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}
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function DynLayerClipValues(which) {
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if (is.ie) var clipv = this.css.clip.split("rect(")[1].split(")")[0].split("px")
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if (which=="t") return (is.ns)? this.css.clip.top : Number(clipv[0])
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if (which=="r") return (is.ns)? this.css.clip.right : Number(clipv[1])
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if (which=="b") return (is.ns)? this.css.clip.bottom : Number(clipv[2])
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if (which=="l") return (is.ns)? this.css.clip.left : Number(clipv[3])
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}
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DynLayer.prototype.clipInit = DynLayerClipInit
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DynLayer.prototype.clipTo = DynLayerClipTo
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DynLayer.prototype.clipBy = DynLayerClipBy
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DynLayer.prototype.clipValues = DynLayerClipValues
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// Write Method
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function DynLayerWrite(html) {
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if (is.ns) {
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this.doc.open()
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this.doc.write(html)
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this.doc.close()
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}
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else if (is.ie) {
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this.event.innerHTML = html
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}
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}
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DynLayer.prototype.write = DynLayerWrite
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// BrowserCheck Object
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function BrowserCheck() {
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var b = navigator.appName
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if (b=="Netscape") this.b = "ns"
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else if (b=="Microsoft Internet Explorer") this.b = "ie"
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else this.b = b
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this.version = navigator.appVersion
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this.v = parseInt(this.version)
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this.ns = (this.b=="ns" && this.v>=4)
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this.ns4 = (this.b=="ns" && this.v==4)
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this.ns5 = (this.b=="ns" && this.v==5)
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this.ie = (this.b=="ie" && this.v>=4)
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this.ie4 = (this.version.indexOf('MSIE 4')>0)
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this.ie5 = (this.version.indexOf('MSIE 5')>0)
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this.min = (this.ns||this.ie)
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}
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is = new BrowserCheck()
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// CSS Function
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function css(id,left,top,width,height,color,vis,z,other) {
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if (id=="START") return '<STYLE TYPE="text/css">\n'
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else if (id=="END") return '</STYLE>'
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var str = (left!=null && top!=null)? '#'+id+' {position:absolute; left:'+left+'px; top:'+top+'px;' : '#'+id+' {position:relative;'
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if (arguments.length>=4 && width!=null) str += ' width:'+width+'px;'
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if (arguments.length>=5 && height!=null) {
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str += ' height:'+height+'px;'
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if (arguments.length<9 || other.indexOf('clip')==-1) str += ' clip:rect(0px '+width+'px '+height+'px 0px);'
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}
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if (arguments.length>=6 && color!=null) str += (is.ns)? ' layer-background-color:'+color+';' : ' background-color:'+color+';'
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if (arguments.length>=7 && vis!=null) str += ' visibility:'+vis+';'
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if (arguments.length>=8 && z!=null) str += ' z-index:'+z+';'
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if (arguments.length==9 && other!=null) str += ' '+other
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str += '}\n'
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return str
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}
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function writeCSS(str,showAlert) {
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str = css('START')+str+css('END')
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document.write(str)
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if (showAlert) alert(str)
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}
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