/**
* The default node presentation. The first parameter should be
* either a string that will be used as the node's label, or an object
* that has a string propery called label. By default, the clicking the
* label will toggle the expanded/collapsed state of the node. By
* changing the href property of the instance, this behavior can be
* changed so that the label will go to the specified href.
* @namespace YAHOO.widget
* @class TextNode
* @extends YAHOO.widget.Node
* @constructor
* @param oData {object} a string or object containing the data that will
* be used to render this node
* @param oParent {YAHOO.widget.Node} this node's parent node
* @param expanded {boolean} the initial expanded/collapsed state
*/
YAHOO.widget.TextNode = function(oData, oParent, expanded) {
if (oData) {
this.init(oData, oParent, expanded);
this.setUpLabel(oData);
}
this.logger = new YAHOO.widget.LogWriter(this.toString());
};
YAHOO.extend(YAHOO.widget.TextNode, YAHOO.widget.Node, {
/**
* The CSS class for the label href. Defaults to ygtvlabel, but can be
* overridden to provide a custom presentation for a specific node.
* @property labelStyle
* @type string
*/
labelStyle: "ygtvlabel",
/**
* The derived element id of the label for this node
* @property labelElId
* @type string
*/
labelElId: null,
/**
* The text for the label. It is assumed that the oData parameter will
* either be a string that will be used as the label, or an object that
* has a property called "label" that we will use.
* @property label
* @type string
*/
label: null,
textNodeParentChange: function() {
/**
* Custom event that is fired when the text node label is clicked. The
* custom event is defined on the tree instance, so there is a single
* event that handles all nodes in the tree. The node clicked is
* provided as an argument
*
* @event labelClick
* @for YAHOO.widget.TreeView
* @param {YAHOO.widget.Node} node the node clicked
*/
if (this.tree && !this.tree.hasEvent("labelClick")) {
this.tree.createEvent("labelClick", this.tree);
}
},
/**
* Sets up the node label
* @method setUpLabel
* @param oData string containing the label, or an object with a label property
*/
setUpLabel: function(oData) {
// set up the custom event on the tree
this.textNodeParentChange();
this.subscribe("parentChange", this.textNodeParentChange);
if (typeof oData == "string") {
oData = { label: oData };
}
this.label = oData.label;
this.data.label = oData.label;
// update the link
if (oData.href) {
this.href = oData.href;
}
// set the target
if (oData.target) {
this.target = oData.target;
}
if (oData.style) {
this.labelStyle = oData.style;
}
this.labelElId = "ygtvlabelel" + this.index;
},
/**
* Returns the label element
* @for YAHOO.widget.TextNode
* @method getLabelEl
* @return {object} the element
*/
getLabelEl: function() {
return document.getElementById(this.labelElId);
},
// overrides YAHOO.widget.Node
getNodeHtml: function() {
this.logger.log("Generating html");
var sb = [];
sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
sb[sb.length] = '<tr>';
for (var i=0;i<this.depth;++i) {
//sb[sb.length] = '<td><div class="' + this.getDepthStyle(i) + '"> </div></td>';
//sb[sb.length] = '<td><div class="' + this.getDepthStyle(i) + '"></div></td>';
sb[sb.length] = '<td class="' + this.getDepthStyle(i) + '"><div class="ygtvspacer"></div></td>';
}
var getNode = 'YAHOO.widget.TreeView.getNode(\'' +
this.tree.id + '\',' + this.index + ')';
sb[sb.length] = '<td';
// sb[sb.length] = ' onselectstart="return false"';
sb[sb.length] = ' id="' + this.getToggleElId() + '"';
sb[sb.length] = ' class="' + this.getStyle() + '"';
if (this.hasChildren(true)) {
sb[sb.length] = ' onmouseover="this.className=';
sb[sb.length] = getNode + '.getHoverStyle()"';
sb[sb.length] = ' onmouseout="this.className=';
sb[sb.length] = getNode + '.getStyle()"';
}
sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '">';
sb[sb.length] = '<div class="ygtvspacer">';
/*
sb[sb.length] = '<img id="' + this.getSpacerId() + '"';
sb[sb.length] = ' alt=""';
sb[sb.length] = ' tabindex=0';
sb[sb.length] = ' src="' + this.spacerPath + '"';
sb[sb.length] = ' title="' + this.getStateText() + '"';
sb[sb.length] = ' class="ygtvspacer"';
// sb[sb.length] = ' onkeypress="return ' + getNode + '".onKeyPress()"';
sb[sb.length] = ' />';
*/
//sb[sb.length] = ' ';
sb[sb.length] = '</div>';
sb[sb.length] = '</td>';
sb[sb.length] = '<td ';
sb[sb.length] = (this.nowrap) ? ' nowrap="nowrap" ' : '';
sb[sb.length] = ' >';
sb[sb.length] = '<a';
sb[sb.length] = ' id="' + this.labelElId + '"';
sb[sb.length] = ' class="' + this.labelStyle + '"';
sb[sb.length] = ' href="' + this.href + '"';
sb[sb.length] = ' target="' + this.target + '"';
sb[sb.length] = ' onclick="return ' + getNode + '.onLabelClick(' + getNode +')"';
if (this.hasChildren(true)) {
sb[sb.length] = ' onmouseover="document.getElementById(\'';
sb[sb.length] = this.getToggleElId() + '\').className=';
sb[sb.length] = getNode + '.getHoverStyle()"';
sb[sb.length] = ' onmouseout="document.getElementById(\'';
sb[sb.length] = this.getToggleElId() + '\').className=';
sb[sb.length] = getNode + '.getStyle()"';
}
sb[sb.length] = ' >';
sb[sb.length] = this.label;
sb[sb.length] = '</a>';
sb[sb.length] = '</td>';
sb[sb.length] = '</tr>';
sb[sb.length] = '</table>';
return sb.join("");
},
/**
* Executed when the label is clicked. Fires the labelClick custom event.
* @method onLabelClick
* @param me {Node} this node
* @scope the anchor tag clicked
* @return false to cancel the anchor click
*/
onLabelClick: function(me) {
me.logger.log("onLabelClick " + me.label);
return me.tree.fireEvent("labelClick", me);
//return true;
},
toString: function() {
return "TextNode (" + this.index + ") " + this.label;
}
});