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|
<?php
/**
* The Horde_Tree_html:: class extends the Horde_Tree class to provide
* HTML specific rendering functions.
*
* Copyright 2003-2006 Marko Djukic <marko@oblo.com>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* $Horde: framework/Tree/Tree/html.php,v 1.51.2.12 2006/01/15 16:33:29 chuck Exp $
*
* @author Marko Djukic <marko@oblo.com>
* @package Horde_Tree
* @since Horde 3.0
*/
class Horde_Tree_html extends Horde_Tree {
/**
* Image directory location.
*
* @var string
*/
var $_img_dir = '';
/**
* Default tree graphic for a line.
*
* @var string
*/
var $_img_line = 'line.png';
/**
* Default tree graphic for a blank.
*
* @var string
*/
var $_img_blank = 'blank.png';
/**
* Default tree graphic for a join.
*
* @var string
*/
var $_img_join = 'join.png';
/**
* Default tree graphic for a bottom join.
*
* @var string
*/
var $_img_join_bottom = 'joinbottom.png';
/**
* Default tree graphic for a plus.
*
* @var string
*/
var $_img_plus = 'plus.png';
/**
* Default tree graphic for a bottom plus.
*
* @var string
*/
var $_img_plus_bottom = 'plusbottom.png';
/**
* Default tree graphic for a plus only.
*
* @var string
*/
var $_img_plus_only = 'plusonly.png';
/**
* Default tree graphic for a minus.
*
* @var string
*/
var $_img_minus = 'minus.png';
/**
* Default tree graphic for a bottom minus.
*
* @var string
*/
var $_img_minus_bottom = 'minusbottom.png';
/**
* Default tree graphic for a minus only.
*
* @var string
*/
var $_img_minus_only = 'minusonly.png';
/**
* Default tree graphic for a null only.
*
* @var string
*/
var $_img_null_only = 'nullonly.png';
/**
* Default tree graphic for a folder.
*
* @var string
*/
var $_img_folder = 'folder.png';
/**
* Default tree graphic for an open folder.
*
* @var string
*/
var $_img_folder_open = 'folderopen.png';
/**
* Default tree graphic for a leaf.
*
* @var string
*/
var $_img_leaf = 'leaf.png';
/**
* TODO
*
* @var array
*/
var $_nodes = array();
/**
* TODO
*
* @var array
*/
var $_node_pos = array();
/**
* TODO
*
* @var array
*/
var $_dropline = array();
/**
* Current value of the alt tag count.
*
* @var integer
*/
var $_alt_count = 0;
/**
* Constructor
*/
function Horde_Tree_html($tree_name, $params)
{
parent::Horde_Tree($tree_name, $params);
$this->_img_dir = $GLOBALS['registry']->getImageDir('horde') . '/tree';
}
/**
* Returns the tree.
*
* @param boolean $static If true the tree nodes can't be expanded and
* collapsed and the tree gets rendered expanded.
*
* @return string The HTML code of the rendered tree.
*/
function getTree($static = false)
{
$this->_static = $static;
$this->_buildIndents($this->_root_nodes);
$tree = $this->_buildHeader();
foreach ($this->_root_nodes as $node_id) {
$tree .= $this->_buildTree($node_id);
}
return $tree;
}
/**
* Check the current environment to see if we can render the HTML
* tree. HTML is always renderable, at least until we add a
* php-gtk tree backend, in which case this implementation will
* actually need a body.
*
* @static
*
* @return boolean Whether or not this Tree:: backend will function.
*/
function isSupported()
{
return true;
}
/**
* Returns just the JS node definitions as a string. This is a
* no-op for the HTML renderer.
*/
function renderNodeDefinitions()
{
}
/**
* Returns the HTML code for a header row, if necessary.
*
* @access private
*
* @return string The HTML code of the header row or an empty string.
*/
function _buildHeader()
{
if (!count($this->_header)) {
return '';
}
$html = '<div';
/* If using alternating row shading, work out correct
* shade. */
if ($this->getOption('alternate')) {
$html .= ' class="item' . $this->_alt_count . '"';
$this->_alt_count = 1 - $this->_alt_count;
}
$html .= '>';
foreach ($this->_header as $header) {
$html .= '<div class="leftFloat';
if (!empty($header['class'])) {
$html .= ' ' . $header['class'];
}
$html .= '"';
$style = '';
if (!empty($header['width'])) {
$style .= 'width:' . $header['width'] . ';';
}
if (!empty($header['align'])) {
$style .= 'text-align:' . $header['align'] . ';';
}
if (!empty($style)) {
$html .= ' style="' . $style . '"';
}
$html .= '>';
$html .= empty($header['html']) ? ' ' : $header['html'];
$html .= '</div>';
}
return $html . '</div>';
}
/**
* Recursive function to walk through the tree array and build the output.
*
* @access private
*
* @param string $node_id The Node ID.
*
* @return string The tree rendering.
*/
function _buildTree($node_id)
{
$output = $this->_buildLine($node_id);
if (isset($this->_nodes[$node_id]['children']) &&
$this->_nodes[$node_id]['expanded']) {
$num_subnodes = count($this->_nodes[$node_id]['children']);
for ($c = 0; $c < $num_subnodes; $c++) {
$child_node_id = $this->_nodes[$node_id]['children'][$c];
$this->_node_pos[$child_node_id] = array();
$this->_node_pos[$child_node_id]['pos'] = $c + 1;
$this->_node_pos[$child_node_id]['count'] = $num_subnodes;
$output .= $this->_buildTree($child_node_id);
}
}
return $output;
}
/**
* Function to create a single line of the tree.
*
* @access private
*
* @param string $node_id The Node ID.
*
* @return string The rendered line.
*/
function _buildLine($node_id)
{
$className = 'treeRow';
if (!empty($this->_nodes[$node_id]['class'])) {
$className .= ' ' . $this->_nodes[$node_id]['class'];
}
/* If using alternating row shading, work out correct
* shade. */
if ($this->getOption('alternate')) {
$className .= ' item' . $this->_alt_count;
$this->_alt_count = 1 - $this->_alt_count;
}
$line = '<div class="' . $className . '">';
/* If we have headers, track which logical "column" we're in
* for any given cell of content. */
$column = 0;
if (isset($this->_nodes[$node_id]['extra'][HORDE_TREE_EXTRA_LEFT])) {
$extra = $this->_nodes[$node_id]['extra'][HORDE_TREE_EXTRA_LEFT];
$cMax = count($extra);
for ($c = 0; $c < $cMax; $c++) {
$style = '';
if (isset($this->_header[$column]['width'])) {
$style .= 'width:' . $this->_header[$column]['width'] . ';';
}
$line .= '<div class="leftFloat"';
if (!empty($style)) {
$line .= ' style="' . $style . '"';
}
$line .= '>' . $extra[$c] . '</div>';
$column++;
}
}
$style = '';
if (isset($this->_header[$column]['width'])) {
$style .= 'width:' . $this->_header[$column]['width'] . ';';
}
$line .= '<div class="leftFloat"';
if (!empty($style)) {
$line .= ' style="' . $style . '"';
}
$line .= '>';
if ($this->getOption('multiline')) {
$line .= '<table cellspacing="0"><tr><td>';
}
for ($i = $this->_static ? 1 : 0; $i < $this->_nodes[$node_id]['indent']; $i++) {
$line .= '<img src="' . $this->_img_dir . '/';
if ($this->_dropline[$i] && $this->getOption('lines', false, true)) {
$line .= $this->_img_line . '" '
. 'alt="| " ';
} else {
$line .= $this->_img_blank . '" '
. 'alt=" " ';
}
$line .= 'height="20" width="20" style="vertical-align:middle" />';
}
$line .= $this->_setNodeToggle($node_id) . $this->_setNodeIcon($node_id);
if ($this->getOption('multiline')) {
$line .= '</td><td>';
}
$line .= $this->_setLabel($node_id);
if ($this->getOption('multiline')) {
$line .= '</td></tr></table>';
}
$line .= '</div>';
$column++;
if (isset($this->_nodes[$node_id]['extra'][HORDE_TREE_EXTRA_RIGHT])) {
$extra = $this->_nodes[$node_id]['extra'][HORDE_TREE_EXTRA_RIGHT];
$cMax = count($extra);
for ($c = 0; $c < $cMax; $c++) {
$style = '';
if (isset($this->_header[$column]['width'])) {
$style .= 'width:' . $this->_header[$column]['width'] . ';';
}
$line .= '<div class="leftFloat"';
if (!empty($style)) {
$line .= ' style="' . $style . '"';
}
$line .= '>' . $extra[$c] . '</div>';
$column++;
}
}
return $line . "</div>\n";
}
/**
* Sets the label on the tree line.
*
* @access private
*
* @param string $node_id The Node ID.
*
* @return string The label for the tree line.
*/
function _setLabel($node_id)
{
$n = $this->_nodes[$node_id];
$output = '<span';
if (!empty($n['onclick'])) {
$output .= ' onclick="' . $n['onclick'] . '"';
}
$output .= '>';
$label = $n['label'];
if (!empty($n['url'])) {
$target = '';
if (!empty($n['target'])) {
$target = ' target="' . $n['target'] . '"';
} elseif ($target = $this->getOption('target')) {
$target = ' target="' . $target . '"';
}
$output .= '<a' . (!empty($n['urlclass']) ? ' class="' . $n['urlclass'] . '"' : '') . ' href="' . $n['url'] . '"' . $target . '>' . $label . '</a>';
} else {
$output .= $label;
}
return $output . '</span>';
}
/**
* Sets the node toggle on the tree line.
*
* @access private
*
* @param string $node_id The Node ID.
*
* @return string The node toggle for the tree line.
*/
function _setNodeToggle($node_id)
{
$link_start = '';
if (($this->_nodes[$node_id]['indent'] == 0) &&
isset($this->_nodes[$node_id]['children'])) {
/* Top level node with children. */
$this->_dropline[0] = false;
if ($this->_static) {
return '';
} elseif (!$this->getOption('lines', false, true)) {
$img = $this->_img_blank;
$alt = ' ';
} elseif ($this->_nodes[$node_id]['expanded']) {
$img = $this->_img_minus_only;
$alt = '-';
} else {
$img = $this->_img_plus_only;
$alt = '+';
}
if (!$this->_static) {
$url = Util::addParameter(Horde::selfUrl(), HORDE_TREE_TOGGLE . $this->_instance, $node_id);
$link_start = Horde::link($url);
}
} elseif (($this->_nodes[$node_id]['indent'] != 0) &&
!isset($this->_nodes[$node_id]['children'])) {
/* Node without children. */
if ($this->_node_pos[$node_id]['pos'] < $this->_node_pos[$node_id]['count']) {
/* Not last node. */
if ($this->getOption('lines', false, true)) {
$img = $this->_img_join;
$alt = '|-';
} else {
$img = $this->_img_blank;
$alt = ' ';
}
$this->_dropline[$this->_nodes[$node_id]['indent']] = true;
} else {
/* Last node. */
if ($this->getOption('lines', false, true)) {
$img = $this->_img_join_bottom;
$alt = '`-';
} else {
$img = $this->_img_blank;
$alt = ' ';
}
$this->_dropline[$this->_nodes[$node_id]['indent']] = false;
}
} elseif (isset($this->_nodes[$node_id]['children'])) {
/* Node with children. */
if ($this->_node_pos[$node_id]['pos'] < $this->_node_pos[$node_id]['count']) {
/* Not last node. */
if (!$this->getOption('lines', false, true)) {
$img = $this->_img_blank;
$alt = ' ';
} elseif ($this->_static) {
$img = $this->_img_join;
$alt = '|-';
} elseif ($this->_nodes[$node_id]['expanded']) {
$img = $this->_img_minus;
$alt = '-';
} else {
$img = $this->_img_plus;
$alt = '+';
}
$this->_dropline[$this->_nodes[$node_id]['indent']] = true;
} else {
/* Last node. */
if (!$this->getOption('lines', false, true)) {
$img = $this->_img_blank;
$alt = ' ';
} elseif ($this->_static) {
$img = $this->_img_join_bottom;
$alt = '`-';
} elseif ($this->_nodes[$node_id]['expanded']) {
$img = $this->_img_minus_bottom;
$alt = '-';
} else {
$img = $this->_img_plus_bottom;
$alt = '+';
}
$this->_dropline[$this->_nodes[$node_id]['indent']] = false;
}
if (!$this->_static) {
$url = Util::addParameter(Horde::selfUrl(), HORDE_TREE_TOGGLE . $this->_instance, $node_id);
$link_start = Horde::link($url);
}
} else {
/* Top level node with no children. */
if ($this->_static) {
return '';
}
if ($this->getOption('lines', false, true)) {
$img = $this->_img_null_only;
$alt = ' ';
} else {
$img = $this->_img_blank;
$alt = ' ';
}
$this->_dropline[0] = false;
}
$link_end = ($link_start) ? '</a>' : '';
$img = $link_start . '<img src="' . $this->_img_dir . '/' . $img . '"'
. (isset($alt) ? ' alt="' . $alt . '"' : '')
. ' height="20" width="20" style="vertical-align:middle" border="0" />'
. $link_end;
return $img;
}
/**
* Sets the icon for the node.
*
* @access private
*
* @param string $node_id The Node ID.
*
* @return string The node icon for the tree line.
*/
function _setNodeIcon($node_id)
{
$img_dir = isset($this->_nodes[$node_id]['icondir']) ? $this->_nodes[$node_id]['icondir'] : $this->_img_dir;
if ($img_dir) {
$img_dir .= '/';
}
if (isset($this->_nodes[$node_id]['icon'])) {
if (empty($this->_nodes[$node_id]['icon'])) {
return '';
}
/* Node has a user defined icon. */
if (isset($this->_nodes[$node_id]['iconopen']) &&
$this->_nodes[$node_id]['expanded']) {
$img = $this->_nodes[$node_id]['iconopen'];
} else {
$img = $this->_nodes[$node_id]['icon'];
}
} else {
/* Use standard icon set. */
if (isset($this->_nodes[$node_id]['children'])) {
/* Node with children. */
$img = ($this->_nodes[$node_id]['expanded']) ? $this->_img_folder_open : $this->_img_folder;
} else {
/* Leaf node (no children). */
$img = $this->_img_leaf;
}
}
$imgtxt = '<img src="' . $img_dir . $img . '"';
/* Does the node have user defined alt text? */
if (isset($this->_nodes[$node_id]['iconalt'])) {
$imgtxt .= ' alt="' . htmlspecialchars($this->_nodes[$node_id]['iconalt']) . '"';
}
return $imgtxt . ' />';
}
}
|
