Subversion Repositories Applications.papyrus

if(!dojo._hasResource["dojo.dnd.Avatar"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.dnd.Avatar"] = true;
dojo.provide("dojo.dnd.Avatar");

dojo.require("dojo.dnd.common");

dojo.dnd.Avatar = function(manager){
        // summary: an object, which represents transferred DnD items visually
        // manager: Object: a DnD manager object
        this.manager = manager;
        this.construct();
};

dojo.extend(dojo.dnd.Avatar, {
        construct: function(){
                // summary: a constructor function;
                //      it is separate so it can be (dynamically) overwritten in case of need
                var a = dojo.doc.createElement("table");
                a.className = "dojoDndAvatar";
                a.style.position = "absolute";
                a.style.zIndex = 1999;
                a.style.margin = "0px"; // to avoid dojo.marginBox() problems with table's margins
                var b = dojo.doc.createElement("tbody");
                var tr = dojo.doc.createElement("tr");
                tr.className = "dojoDndAvatarHeader";
                var td = dojo.doc.createElement("td");
                td.innerHTML = this._generateText();
                tr.appendChild(td);
                dojo.style(tr, "opacity", 0.9);
                b.appendChild(tr);
                var k = Math.min(5, this.manager.nodes.length);
                var source = this.manager.source;
                for(var i = 0; i < k; ++i){
                        tr = dojo.doc.createElement("tr");
                        tr.className = "dojoDndAvatarItem";
                        td = dojo.doc.createElement("td");
                        var node = source.creator ?
                                // create an avatar representation of the node
                                node = source._normalizedCreator(source.getItem(this.manager.nodes[i].id).data, "avatar").node :
                                // or just clone the node and hope it works
                                node = this.manager.nodes[i].cloneNode(true);
                        node.id = "";
                        td.appendChild(node);
                        tr.appendChild(td);
                        dojo.style(tr, "opacity", (9 - i) / 10);
                        b.appendChild(tr);
                }
                a.appendChild(b);
                this.node = a;
        },
        destroy: function(){
                // summary: a desctructor for the avatar, called to remove all references so it can be garbage-collected
                dojo._destroyElement(this.node);
                this.node = false;
        },
        update: function(){
                // summary: updates the avatar to reflect the current DnD state
                dojo[(this.manager.canDropFlag ? "add" : "remove") + "Class"](this.node, "dojoDndAvatarCanDrop");
                // replace text
                var t = this.node.getElementsByTagName("td");
                for(var i = 0; i < t.length; ++i){
                        var n = t[i];
                        if(dojo.hasClass(n.parentNode, "dojoDndAvatarHeader")){
                                n.innerHTML = this._generateText();
                                break;
                        }
                }
        },
        _generateText: function(){
                // summary: generates a proper text to reflect copying or moving of items
                return this.manager.nodes.length.toString();
        }
});

}