/
YAHOO.widget.Node.html
3349 lines (2386 loc) · 193 KB
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YAHOO.widget.Node.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html xmlns:yui="http://yuilibrary.com/rdf/1.0/yui.rdf#">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>API: treeview YAHOO.widget.Node (YUI Library)</title>
<link rel="stylesheet" type="text/css" href="assets/reset-fonts-grids-min.css" />
<link rel="stylesheet" type="text/css" href="assets/api.css" />
<script type="text/javascript" src="assets/api-js"></script>
<script type="text/javascript" src="assets/ac-js"></script>
</head>
<body id="yahoo-com">
<div id="doc3" class="yui-t2">
<div id="hd">
<h1><a href="http://developer.yahoo.com/yui/" title="Yahoo! UI Library">Yahoo! UI Library</a></h1>
<h3>TreeView Widget <span class="subtitle">2.8.2r1</span></h3>
<a href="./index.html" title="Yahoo! UI Library">Yahoo! UI Library</a>
> <a href="./module_treeview.html" title="treeview">treeview</a>
> YAHOO.widget.Node
<form onsubmit="return false">
<div id="propertysearch">
Search: <input autocomplete="off" id="searchinput" />
<div id="searchresults">
</div>
</div>
</form>
</div>
<div id="bd">
<div id="yui-main">
<div class="yui-b">
<form action="#" name="yui-classopts-form" method="get" id="yui-classopts-form">
<fieldset>
<legend>Filters</legend>
<span class="classopts"><input type="checkbox" name="show_private" id="show_private" /> <label for="show_private">Show Private</label></span>
<span class="classopts"><input type="checkbox" name="show_protected" id="show_protected" /> <label for="show_protected">Show Protected</label></span>
<span class="classopts"><input type="checkbox" name="show_deprecated" id="show_deprecated" /> <label for="show_deprecated">Show Deprecated</label></span>
</fieldset>
</form>
<h2>
Class <b property="yui:name">YAHOO.widget.Node</b>
<span class="extends">
</span>
<span class="extends" rel="yui:extends">
- uses
<span rel="extend" resource="YAHOO.util.EventProvider.html">
<a href="YAHOO.util.EventProvider.html" property="yui:name" title="YAHOO.util.EventProvider">YAHOO.util.EventProvider</a>
</span>
</span>
</h2>
<!-- class tree goes here -->
<dl class="subclasses" rel="yui:subclasses">
<dt>Known Subclasses:</dt>
<dd>
<span rel="yui:subclass" resource="YAHOO.widget.TextNode.html">
<a href="YAHOO.widget.TextNode.html" property="yui:name" title="YAHOO.widget.TextNode">YAHOO.widget.TextNode</a>
</span>
<span rel="yui:subclass" resource="YAHOO.widget.HTMLNode.html">
<a href="YAHOO.widget.HTMLNode.html" property="yui:name" title="YAHOO.widget.HTMLNode">YAHOO.widget.HTMLNode</a>
</span>
<span rel="yui:subclass" resource="YAHOO.widget.RootNode.html">
<a href="YAHOO.widget.RootNode.html" property="yui:name" title="YAHOO.widget.RootNode">YAHOO.widget.RootNode</a>
</span>
</dd>
</dl>
<div class="summary description" property="yui:description">
The base class for all tree nodes. The node's presentation and behavior in
response to mouse events is handled in Node subclasses.
</div>
<div class="section constructor details" rel="yui:constructor" resource="#constructor">
<h3 id="constructor">Constructor</h3>
<div class="content">
<div class="detail">
<strong property="yui:name">YAHOO.widget.Node</strong>
<code>
(
oData
,
oParent
,
expanded
)
</code>
<div class="description">
<dl rel="yui:parameters">
<dt>Parameters:</dt>
<dd rel="yui:parameter">
<code><span property="yui:name">oData</span>
<<span property="yui:type">object</span>>
</code>
<span property="yui:description"> a string or object containing the data that will
be used to render this node, and any custom attributes that should be
stored with the node (which is available in noderef.data).
All values in oData will be used to set equally named properties in the node
as long as the node does have such properties, they are not undefined, private or functions,
the rest of the values will be stored in noderef.data</span>
</dd>
<dd rel="yui:parameter">
<code><span property="yui:name">oParent</span>
<<span property="yui:type">Node</span>>
</code>
<span property="yui:description"> this node's parent node</span>
</dd>
<dd rel="yui:parameter">
<code><span property="yui:name">expanded</span>
<<span property="yui:type">boolean</span>>
</code>
<span property="yui:description"> the initial expanded/collapsed state (deprecated, use oData.expanded)</span>
</dd>
</dl>
</div>
</div>
</div>
</div>
<div rel="yui:properties" resource="#properties">
<div class="section field details">
<h3 id="properties">Properties</h3>
<div class="content">
<div class="private" rel="yui:property" resource="#property__dynLoad">
<h4><a name="property__dynLoad" property="yui:name">_dynLoad</a>
- <code>private <span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
We can set the node up to call an external method to get the child
data dynamically.
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:property" resource="#property__focusedItem">
<h4><a name="property__focusedItem" property="yui:name">_focusedItem</a>
- <code>private <span property="yui:type">DOM element</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
DOM element that actually got the browser focus
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:property" resource="#property__focusHighlightedItems">
<h4><a name="property__focusHighlightedItems" property="yui:name">_focusHighlightedItems</a>
- <code>private <span property="yui:type">Array of DOM elements</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
array of items that had the focus set on them
so that they can be cleaned when focus is lost
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:property" resource="#property__type">
<h4><a name="property__type" property="yui:name">_type</a>
- <code>private <span property="yui:type">string</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The node type
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: "Node"
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_children">
<h4><a name="property_children" property="yui:name">children</a>
- <code><span property="yui:type">Node[]</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
This node's child node collection.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_childrenRendered">
<h4><a name="property_childrenRendered" property="yui:name">childrenRendered</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
This flag is set to true when the html is generated for this node's
children, and set to false when new children are added.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_className">
<h4><a name="property_className" property="yui:name">className</a>
- <code><span property="yui:type">string</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
User-defined className to be added to the Node
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: null
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_contentElId">
<h4><a name="property_contentElId" property="yui:name">contentElId</a>
- <code><span property="yui:type">string</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The generated id that will contain the data passed in by the implementer.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_contentStyle">
<h4><a name="property_contentStyle" property="yui:name">contentStyle</a>
- <code><span property="yui:type">string</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The CSS class for the html content container. Defaults to ygtvhtml, but
can be overridden to provide a custom presentation for a specific node.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_data">
<h4><a name="property_data" property="yui:name">data</a>
- <code><span property="yui:type">object</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The data linked to this node. This can be any object or primitive
value, and the data can be used in getNodeHtml().
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_dataLoader">
<h4><a name="property_dataLoader" property="yui:name">dataLoader</a>
- <code><span property="yui:type">function</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Function to execute when we need to get this node's child data.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_depth">
<h4><a name="property_depth" property="yui:name">depth</a>
- <code><span property="yui:type">int</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The depth of this node. We start at -1 for the root node.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_dynamicLoadComplete">
<h4><a name="property_dynamicLoadComplete" property="yui:name">dynamicLoadComplete</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Dynamically loaded nodes only fetch the data the first time they are
expanded. This flag is set to true once the data has been fetched.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_editable">
<h4><a name="property_editable" property="yui:name">editable</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Signals if the label is editable. (Ignored on TextNodes with href set.)
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_enableHighlight">
<h4><a name="property_enableHighlight" property="yui:name">enableHighlight</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Enables node highlighting. If true, the node can be highlighted and/or propagate highlighting
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: true
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_expanded">
<h4><a name="property_expanded" property="yui:name">expanded</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The node's expanded/collapsed state
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_hasIcon">
<h4><a name="property_hasIcon" property="yui:name">hasIcon</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The toggle/branch icon will not show if this is set to false. This
could be useful if the implementer wants to have the child contain
extra info about the parent, rather than an actual node.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_highlightState">
<h4><a name="property_highlightState" property="yui:name">highlightState</a>
- <code><span property="yui:type">integer</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Stores the highlight state. Can be any of:
<ul>
<li>0 - not highlighted</li>
<li>1 - highlighted</li>
<li>2 - some children highlighted</li>
</ul>
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: 0
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_iconMode">
<h4><a name="property_iconMode" property="yui:name">iconMode</a>
- <code><span property="yui:type">int</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Used to configure what happens when a dynamic load node is expanded
and we discover that it does not have children. By default, it is
treated as if it still could have children (plus/minus icon). Set
iconMode to have it display like a leaf node instead.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_index">
<h4><a name="property_index" property="yui:name">index</a>
- <code><span property="yui:type">int</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
The index for this instance obtained from global counter in YAHOO.widget.TreeView.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_isLeaf">
<h4><a name="property_isLeaf" property="yui:name">isLeaf</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
If true, the node will alway be rendered as a leaf node. This can be
used to override the presentation when dynamically loading the entire
tree. Setting this to true also disables the dynamic load call for the
node.
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: false
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_isLoading">
<h4><a name="property_isLoading" property="yui:name">isLoading</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
This is true for dynamically loading nodes while waiting for the
callback to return.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_multiExpand">
<h4><a name="property_multiExpand" property="yui:name">multiExpand</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Can multiple children be expanded at once?
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_nextSibling">
<h4><a name="property_nextSibling" property="yui:name">nextSibling</a>
- <code><span property="yui:type">Node</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
This node's next sibling
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_nowrap">
<h4><a name="property_nowrap" property="yui:name">nowrap</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Specifies whether or not the content area of the node should be allowed
to wrap.
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: false
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_parent">
<h4><a name="property_parent" property="yui:name">parent</a>
- <code><span property="yui:type">Node</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Parent node
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_previousSibling">
<h4><a name="property_previousSibling" property="yui:name">previousSibling</a>
- <code><span property="yui:type">Node</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
This node's previous sibling
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_propagateHighlightDown">
<h4><a name="property_propagateHighlightDown" property="yui:name">propagateHighlightDown</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Tells whether highlighting will be propagated down to the children of the clicked node
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: false
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_propagateHighlightUp">
<h4><a name="property_propagateHighlightUp" property="yui:name">propagateHighlightUp</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Tells whether highlighting will be propagated up to the parents of the clicked node
</div>
</div>
<div class="default" property="yui:defaultValue">
Default Value: false
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_renderHidden">
<h4><a name="property_renderHidden" property="yui:name">renderHidden</a>
- <code><span property="yui:type">boolean</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Should we render children for a collapsed node? It is possible that the
implementer will want to render the hidden data... @todo verify that we
need this, and implement it if we do.
</div>
</div>
<hr />
</div>
<div class="" rel="yui:property" resource="#property_tree">
<h4><a name="property_tree" property="yui:name">tree</a>
- <code><span property="yui:type">TreeView</span></code>
</h4>
<div class="detail">
<div class="description" property="yui:description">
Tree instance this node is part of
</div>
</div>
<hr />
</div>
</div>
</div>
<div rel="yui:inheritance">
<div class="section field inheritance" rel="yui:superclass" resource="YAHOO.util.EventProvider.html">
<h4>Properties inherited from <a href="YAHOO.util.EventProvider.html" property="yui:name" title="YAHOO.util.EventProvider">YAHOO.util.EventProvider</a>:</h4>
<div class="content" rel="yui:properties">
<code>
<span rel="yui:property" resource="YAHOO.util.EventProvider.html#property___yui_events">
<a class="private" href="YAHOO.util.EventProvider.html#property___yui_events" property="yui:name" title="__yui_events">__yui_events</a><span class="private">,</span>
</span>
<span rel="yui:property" resource="YAHOO.util.EventProvider.html#property___yui_subscribers">
<a class="private" href="YAHOO.util.EventProvider.html#property___yui_subscribers" property="yui:name" title="__yui_subscribers">__yui_subscribers</a>
</span>
</code>
</div>
</div>
</div>
</div>
<div rel="yui:methods" resource="#methods">
<div class="section method details">
<h3 id="methods">Methods</h3>
<div class="content">
<div class="private" rel="yui:method" resource="#method__canHaveFocus">
<h4>
<a name="method__canHaveFocus">_canHaveFocus</a></h4>
<div class="detail" >
<code>
private
boolean
<strong property="yui:name">_canHaveFocus</strong>
(
)
</code>
<div class="description" property="yui:description">
Returns true if there are any elements in the node that can
accept the real actual browser focus
</div>
<div class="description">
<dl>
<dt>Returns:
<code property="yui:return">
boolean
</code></dt>
<dd property="yui:returnInfo">success</dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:method" resource="#method__childrenHighlighted">
<h4>
<a name="method__childrenHighlighted">_childrenHighlighted</a></h4>
<div class="detail" >
<code>
private
void
<strong property="yui:name">_childrenHighlighted</strong>
(
)
</code>
<div class="description" property="yui:description">
Checks whether all or part of the children of a node are highlighted and
sets the node highlight to full, none or partial highlight.
If set to propagate it will further call the parent
</div>
<div class="description">
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:method" resource="#method__removeFocus">
<h4>
<a name="method__removeFocus">_removeFocus</a></h4>
<div class="detail" >
<code>
private
void
<strong property="yui:name">_removeFocus</strong>
(
)
</code>
<div class="description" property="yui:description">
Removes the focus of previously selected Node
</div>
<div class="description">
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:method" resource="#method__setHighlightClassName">
<h4>
<a name="method__setHighlightClassName">_setHighlightClassName</a></h4>
<div class="detail" >
<code>
private
void
<strong property="yui:name">_setHighlightClassName</strong>
(
)
</code>
<div class="description" property="yui:description">
Changes the classNames on the toggle and content containers to reflect the current highlighting
</div>
<div class="description">
</div>
</div>
<hr />
</div>
<div class="private" rel="yui:method" resource="#method_appendChild">
<h4>
<a name="method_appendChild">appendChild</a></h4>
<div class="detail" >
<code>
private
Node
<strong property="yui:name">appendChild</strong>
(
childNode
)
</code>
<div class="description" property="yui:description">
Appends a node to the child collection.
</div>
<div class="description">
<dl rel="yui:parameters">
<dt>Parameters:</dt>
<dd rel="yui:parameter">
<code><span property="yui:name">childNode</span>
<<span property="yui:type">Node</span>>
</code>
<span property="yui:description"> the new node</span>
</dd>
</dl>
<dl>
<dt>Returns:
<code property="yui:return">
Node
</code></dt>
<dd property="yui:returnInfo">the child node</dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="" rel="yui:method" resource="#method_appendTo">
<h4>
<a name="method_appendTo">appendTo</a></h4>
<div class="detail" >
<code>
Node
<strong property="yui:name">appendTo</strong>
(
parentNode
)
</code>
<div class="description" property="yui:description">
Appends this node to the supplied node's child collection
</div>
<div class="description">
<dl rel="yui:parameters">
<dt>Parameters:</dt>
<dd rel="yui:parameter">
<code><span property="yui:name">parentNode</span>
<<span property="yui:type">Node</span>>
</code>
<span property="yui:description"> the node to append to.</span>
</dd>
</dl>
<dl>
<dt>Returns:
<code property="yui:return">
Node
</code></dt>
<dd property="yui:returnInfo">The appended node</dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="" rel="yui:method" resource="#method_applyParent">
<h4>
<a name="method_applyParent">applyParent</a></h4>
<div class="detail" >
<code>
boolean
<strong property="yui:name">applyParent</strong>
(
parentNode
)
</code>
<div class="description" property="yui:description">
Certain properties for the node cannot be set until the parent
is known. This is called after the node is inserted into a tree.
the parent is also applied to this node's children in order to
make it possible to move a branch from one tree to another.
</div>
<div class="description">
<dl rel="yui:parameters">
<dt>Parameters:</dt>
<dd rel="yui:parameter">
<code><span property="yui:name">parentNode</span>
<<span property="yui:type">Node</span>>
</code>
<span property="yui:description"> this node's parent node</span>
</dd>
</dl>
<dl>
<dt>Returns:
<code property="yui:return">
boolean
</code></dt>
<dd property="yui:returnInfo">true if the application was successful</dd>
</dl>
</div>
</div>
<hr />
</div>
<div class="" rel="yui:method" resource="#method_collapse">
<h4>
<a name="method_collapse">collapse</a></h4>
<div class="detail" >
<code>
void
<strong property="yui:name">collapse</strong>
(
)
</code>
<div class="description" property="yui:description">
Hides this nodes children (creating them if necessary), changes the toggle style.
</div>
<div class="description">
</div>
</div>
<hr />
</div>