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eZ Components 2008.1beta1

Tree: ezcTreeVisitorYUI

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Class: ezcTreeVisitorYUI

An implementation of the ezcTreeVisitor interface that generates an XHTML representatation of a tree structure, as YUI wants. [source]

Implemented Interfaces

See http://developer.yahoo.com/yui/menu.
1.  <?php
2.      $visitor = new ezcTreeVisitorYUI( 'menu' );
3.      $tree->accept( $visitor );
4.      echo (string) $visitor; // print the plot
5.   ?>

Member Variables

protected string $class
Holds the XHTML class.
protected array(string=>array(string)) $edges = array()
Holds all the edges of the graph.
public ezcTreeVisitorYUIOptions $options
Holds the options for this class
protected string $root = null
Holds the root ID.
protected string $xmlId
Holds the XML ID.

Method Summary

public ezcTreeVisitorYUI __construct( $xmlId, [$options = null] )
Constructs a new ezcTreeVisitorYUI visualizer.
protected string doChildren( $id, [$level = 0], [$levelLast = array()], $levelLast )
Loops over the children of the node with ID $id.
protected string formatData( $data, $highlight )
Formats a node's data.
public bool visit( $visitable )
Visits the node and sets the the member variables according to the node type and contents.

Methods

__construct

ezcTreeVisitorYUI __construct( $xmlId, [ezcTreeVisitorYUIOptions $options = null] )
Constructs a new ezcTreeVisitorYUI visualizer.

Parameters

Name Type Description
$options ezcTreeVisitorYUIOptions  
$xmlId  

doChildren

string doChildren( string $id, [int $level = 0], [ $levelLast = array()], array(int=>bool) $levelLast )
Loops over the children of the node with ID $id.
This methods loops over all the node's children and adds the correct layout for each node depending on the state that is collected in the $level and $levelLast variables.

Parameters

Name Type Description
$id string  
$level int  
$levelLast array(int=>bool)  
$levelLast  

formatData

string formatData( mixed $data, bool $highlight )
Formats a node's data.
It is just a simple method, that provide an easy way to change the way on how data is formatted when this class is extended. The data is passed in the $data argument, and whether the node should be highlighted is passed in the $highlight argument.

Parameters

Name Type Description
$data mixed  
$highlight bool  

visit

bool visit( ezcTreeVisitable $visitable )
Visits the node and sets the the member variables according to the node type and contents.

Parameters

Name Type Description
$visitable ezcTreeVisitable  

Last updated: Tue, 27 May 2008