dojo.provide("dojo.widget.Repeater");
dojo.require("dojo.widget.HtmlWidget");
dojo.require("dojo.string");
dojo.require("dojo.event.*");
dojo.require("dojo.experimental");
dojo.experimental("dojo.widget.Repeater");
dojo.widget.defineWidget("dojo.widget.Repeater", dojo.widget.HtmlWidget,
{
/*
summary:
Makes it easy to add dynamicly new segments to form, ie. add new rows.
description:
usage:
<div dojoType="Repeater" pattern="row.%{index}" useDnd="false">
<p>Name: <input typ="text" name="row.%{index}.name" value="" /><input type="button" rowAction="delete" value="remove this" </p>
</div>
or:
var myRepeater=dojo.widget.createWidget("Repeater",{pattern: "row.%{index}", useDnd: false});
myRepeater.setRow("<p>Name: <input typ="text" name="row.%{index}.name" value="" rowFunction="doThis" /><input type="button" rowAction="delete" value="remove this" /></p>", {doThis: function(node) { dojo.event.connect(node,"onClick", function() { alert("HERE"); }); } );
*/
name: "",
rowTemplate: "",
// myObject:
// Used to bind functionality to rowFunctions
myObject: null,
// myObject:
// defines pattern of the names
pattern: "",
// useDnd:
// if true, you can change position of rows by DnD
// you can also remove rows by dragging row away
useDnd: false,
isContainer: true,
initialize: function(args,frag) {
var node = this.getFragNodeRef(frag);
node.removeAttribute("dojotype");
this.setRow(dojo.string.trim(node.innerHTML), {});
node.innerHTML="";
frag=null;
},
postCreate: function(args,frag){
if (this.useDnd) {
dojo.require("dojo.dnd.*");
var dnd = new dojo.dnd.HtmlDropTarget(this.domNode, [this.widgetId]);
}
},
_reIndexRows: function() {
for(var i=0,len=this.domNode.childNodes.length; i<len;i++) {
var elems = ["INPUT", "SELECT", "TEXTAREA"];
for (var k=0; k < elems.length; k++) {
var list = this.domNode.childNodes[i].getElementsByTagName(elems[k]);
for (var j=0,len2=list.length; j<len2; j++) {
var name = list[j].name;
var index=dojo.string.escape("regexp", this.pattern);
index = index.replace(/(%\\\{index\\\})/g,"%{index}");
var nameRegexp = dojo.string.substituteParams(index, {"index": "[0-9]*"});
var newName= dojo.string.substituteParams(this.pattern, {"index": "" + i});
var re=new RegExp(nameRegexp,"g");
list[j].name = name.replace(re,newName);
}
}
}
},
onDeleteRow: function(e) {
var index=dojo.string.escape("regexp", this.pattern);
index = index.replace(/%\\\{index\\\}/g,"\%{index}");
var nameRegexp = dojo.string.substituteParams(index, {"index": "([0-9]*)"});
var re=new RegExp(nameRegexp,"g");
this.deleteRow(re.exec(e.target.name)[1]);
},
hasRows: function() {
if (this.domNode.childNodes.length > 0) {
return true;
}
return false;
},
getRowCount: function() {
return this.domNode.childNodes.length;
},
deleteRow: function(/*integer*/idx) {
this.domNode.removeChild(this.domNode.childNodes[idx]);
this._reIndexRows();
},
_changeRowPosition: function(e) {
if (e.dragStatus == "dropFailure") {
this.domNode.removeChild(e["dragSource"].domNode);
} else if (e.dragStatus == "dropSuccess") {
// nothing to do
} // else-if
this._reIndexRows();
},
setRow: function(/*string*/template, /*object*/myObject) {
//template = dojo.string.substituteParams(template, {"index": "0"});
template= template.replace(/\%\{(index)\}/g, "0");
this.rowTemplate=template;
this.myObject = myObject;
},
getRow: function() {
return this.rowTemplate;
},
_initRow: function(/*integer or dom node*/node) {
if (typeof(node) == "number") {
node=this.domNode.childNodes[node];
} // if
var elems = ["INPUT", "SELECT", "IMG"];
for (var k=0; k < elems.length; k++) {
var list = node.getElementsByTagName(elems[k]);
for(var i=0, len=list.length; i<len; i++) {
var child = list[i];
if(child.nodeType != 1) {continue};
if (child.getAttribute("rowFunction") != null) {
if(typeof(this.myObject[child.getAttribute("rowFunction")]) == "undefined") {
dojo.debug("Function " + child.getAttribute("rowFunction") + " not found");
} else {
this.myObject[child.getAttribute("rowFunction")](child);
} // ifelse
} else if (child.getAttribute("rowAction") != null) {
if(child.getAttribute("rowAction") == "delete") {
child.name=dojo.string.substituteParams(this.pattern, {"index": "" + (this.getRowCount() - 1)});
dojo.event.connect(child, "onclick", this, "onDeleteRow");
} // if
} // else-if
} // for
} // for
},
onAddRow: function(e) {
},
addRow: function(/*boolean*/doInit) {
if (typeof(doInit) == "undefined") {
doInit=true;
}
var node = document.createElement('span');
node.innerHTML=this.getRow();
if (node.childNodes.length == 1) {
node=node.childNodes[0];
}
this.domNode.appendChild(node);
var parser = new dojo.xml.Parse();
var frag = parser.parseElement(node, null, true);
dojo.widget.getParser().createSubComponents(frag, this);
this._reIndexRows();
if (doInit) {
this._initRow(node);
}
if (this.useDnd) { // bind to DND
node=new dojo.dnd.HtmlDragSource(node, this.widgetId);
dojo.event.connect(node, "onDragEnd", this, "_changeRowPosition");
}
this.onAddRow(node);
}
});