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if(!dojo._hasResource["dojox.fx.Shadow"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.fx.Shadow"] = true;
dojo.provide("dojox.fx.Shadow");
dojo.experimental("dojox.fx.Shadow");
dojo.require("dijit._Widget");
dojo.require("dojo.NodeList-fx");
dojo.declare("dojox.fx.Shadow",
dijit._Widget,{
// summary: Adds a drop-shadow to a node.
//
// example:
// | // add drop shadows to all nodes with class="hasShadow"
// | dojo.query(".hasShadow").forEach(function(n){
// | var foo = new dojox.fx.Shadow({ node: n });
// | foo.startup();
// | });
//
// shadowPng: String
// Base location for drop-shadow images
shadowPng: dojo.moduleUrl("dojox.fx", "resources/shadow"),
// shadowThickness: Integer
// How wide (in px) to make the shadow
shadowThickness: 7,
// shadowOffset: Integer
// How deep to make the shadow appear to be
shadowOffset: 3,
// opacity: Float
// Overall opacity of the shadow
opacity: 0.75,
// animate: Boolean
// A toggle to disable animated transitions
animate: false,
// node: DomNode
// The node we will be applying this shadow to
node: null,
startup: function(){
// summary: Initializes the shadow.
this.inherited(arguments);
this.node.style.position = "relative";
// make all the pieces of the shadow, and position/size them as much
// as possible (but a lot of the coordinates are set in sizeShadow
this.pieces={};
var x1 = -1 * this.shadowThickness;
var y0 = this.shadowOffset;
var y1 = this.shadowOffset + this.shadowThickness;
this._makePiece("tl", "top", y0, "left", x1);
this._makePiece("l", "top", y1, "left", x1, "scale");
this._makePiece("tr", "top", y0, "left", 0);
this._makePiece("r", "top", y1, "left", 0, "scale");
this._makePiece("bl", "top", 0, "left", x1);
this._makePiece("b", "top", 0, "left", 0, "crop");
this._makePiece("br", "top", 0, "left", 0);
this.nodeList = dojo.query(".shadowPiece",this.node);
this.setOpacity(this.opacity);
this.resize();
},
_makePiece: function(name, vertAttach, vertCoord, horzAttach, horzCoord, sizing){
// summary: append a shadow pieces to the node, and position it
var img;
var url = this.shadowPng + name.toUpperCase() + ".png";
if((dojo.isIE)&&(dojo.isIE<7)){
img=document.createElement("div");
img.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+url+"'"+
(sizing?", sizingMethod='"+sizing+"'":"") + ")";
}else{
img=document.createElement("img");
img.src=url;
}
img.style.position="absolute";
img.style[vertAttach]=vertCoord+"px";
img.style[horzAttach]=horzCoord+"px";
img.style.width=this.shadowThickness+"px";
img.style.height=this.shadowThickness+"px";
dojo.addClass(img,"shadowPiece");
this.pieces[name]=img;
this.node.appendChild(img);
},
setOpacity: function(/* Float */n,/* Object? */animArgs){
// summary: set the opacity of the underlay
// note: does not work in IE? FIXME.
if(dojo.isIE){ return; }
if(!animArgs){ animArgs = {}; }
if(this.animate){
var _anims = [];
this.nodeList.forEach(function(node){
_anims.push(dojo._fade(dojo.mixin(animArgs,{ node: node, end: n })));
});
dojo.fx.combine(_anims).play();
}else{
this.nodeList.style("opacity",n);
}
},
setDisabled: function(/* Boolean */disabled){
// summary: enable / disable the shadow
if(disabled){
if(this.disabled){ return; }
if(this.animate){ this.nodeList.fadeOut().play();
}else{ this.nodeList.style("visibility","hidden"); }
this.disabled = true;
}else{
if(!this.disabled){ return; }
if(this.animate){ this.nodeList.fadeIn().play();
}else{ this.nodeList.style("visibility","visible"); }
this.disabled = false;
}
},
resize: function(/* dojox.fx._arg.ShadowResizeArgs */args){
// summary: Resizes the shadow based on width and height.
var x; var y;
if(args){ x = args.x; y = args.y;
}else{
var co = dojo._getBorderBox(this.node);
x = co.w; y = co.h;
}
var sideHeight = y - (this.shadowOffset+this.shadowThickness);
if (sideHeight < 0) { sideHeight = 0; }
if (y < 1) { y = 1; }
if (x < 1) { x = 1; }
with(this.pieces){
l.style.height = sideHeight+"px";
r.style.height = sideHeight+"px";
b.style.width = x+"px";
bl.style.top = y+"px";
b.style.top = y+"px";
br.style.top = y+"px";
tr.style.left = x+"px";
r.style.left = x+"px";
br.style.left = x+"px";
}
}
});
}
|
