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rcube_html.inc
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rcube_html.inc
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<?php
/*
+-----------------------------------------------------------------------+
| rcube_html.inc |
| |
| This file is part of the RoundCube PHP suite |
| Copyright (C) 2005-2007, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| CONTENTS: |
| Common Classes to create HTML output |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id: $
*/
/**
* HTML page builder class
*
* @package HTML
*/
class rcube_html_page
{
var $scripts_path = '';
var $script_files = array();
var $scripts = array();
var $charset = 'UTF-8';
var $script_tag_file = "<script type=\"text/javascript\" src=\"%s%s\"></script>\n";
var $script_tag = "<script type=\"text/javascript\">\n<!--\n%s\n\n//-->\n</script>\n";
var $default_template = "<html>\n<head><title></title></head>\n<body></body>\n</html>";
var $title = 'RoundCube Mail';
var $header = '';
var $footer = '';
var $body = '';
var $body_attrib = array();
var $meta_tags = array();
/**
* Link an external script file
*
* @param string File URL
* @param string Target position [head|foot]
*/
function include_script($file, $position='head')
{
static $sa_files = array();
if (in_array($file, $sa_files))
return;
if (!is_array($this->script_files[$position]))
$this->script_files[$position] = array();
$this->script_files[$position][] = $file;
}
/**
* Add inline javascript code
*
* @param string JS code snippet
* @param string Target position [head|head_top|foot]
*/
function add_script($script, $position='head')
{
if (!isset($this->scripts[$position]))
$this->scripts[$position] = "\n".rtrim($script);
else
$this->scripts[$position] .= "\n".rtrim($script);
}
/**
* Add HTML code to the page header
*/
function add_header($str)
{
$this->header .= "\n".$str;
}
/**
* Add HTML code to the page footer
* To be added right befor </body>
*/
function add_footer($str)
{
$this->footer .= "\n".$str;
}
/**
* Setter for page title
*/
function set_title($t)
{
$this->title = $t;
}
/**
* Setter for output charset.
* To be specified in a meta tag and sent as http-header
*/
function set_charset($charset)
{
global $MBSTRING;
$this->charset = $charset;
if ($MBSTRING && function_exists("mb_internal_encoding"))
{
if(!@mb_internal_encoding($charset))
$MBSTRING = FALSE;
}
}
/**
* Getter for output charset
*/
function get_charset()
{
return $this->charset;
}
/**
* Reset all saved properties
*/
function reset()
{
$this->script_files = array();
$this->scripts = array();
$this->title = '';
$this->header = '';
$this->footer = '';
}
/**
* Process template and write to stdOut
*
* @param string HTML template
* @param string Base for absolute paths
*/
function write($templ='', $base_path='')
{
$output = empty($templ) ? $this->default_template : trim($templ);
// replace specialchars in content
$__page_title = Q($this->title, 'show', FALSE);
$__page_header = $__page_body = $__page_footer = '';
// include meta tag with charset
if (!empty($this->charset))
{
header('Content-Type: text/html; charset='.$this->charset, true);
$__page_header = '<meta http-equiv="content-type" content="text/html; charset='.$this->charset.'" />'."\n";
}
// definition of the code to be placed in the document header and footer
if (is_array($this->script_files['head']))
foreach ($this->script_files['head'] as $file)
$__page_header .= sprintf($this->script_tag_file, $this->scripts_path, $file);
$head_script = $this->scripts['head_top'] . $this->scripts['head'];
if (!empty($head_script))
$__page_header .= sprintf($this->script_tag, $head_script);
if (!empty($this->header))
$__page_header .= $this->header;
if (is_array($this->script_files['foot']))
foreach ($this->script_files['foot'] as $file)
$__page_footer .= sprintf($this->script_tag_file, $this->scripts_path, $file);
if (!empty($this->scripts['foot']))
$__page_footer .= sprintf($this->script_tag, $this->scripts['foot']);
if (!empty($this->footer))
$__page_footer .= $this->footer;
// find page header
if ($hpos = strpos(strtolower($output), '</head>'))
$__page_header .= "\n";
else
{
if (!is_numeric($hpos))
$hpos = strpos(strtolower($output), '<body');
if (!is_numeric($hpos) && ($hpos = strpos(strtolower($output), '<html')))
{
while($output[$hpos]!='>')
$hpos++;
$hpos++;
}
$__page_header = "<head>\n<title>$__page_title</title>\n$__page_header\n</head>\n";
}
// add page hader
if ($hpos)
$output = substr($output,0,$hpos) . $__page_header . substr($output,$hpos,strlen($output));
else
$output = $__page_header . $output;
// find page body
if($bpos = strpos(strtolower($output), '<body'))
{
while($output[$bpos]!='>') $bpos++;
$bpos++;
}
else
$bpos = strpos(strtolower($output), '</head>')+7;
// add page body
if($bpos && $__page_body)
$output = substr($output,0,$bpos) . "\n$__page_body\n" . substr($output,$bpos,strlen($output));
// find and add page footer
$output_lc = strtolower($output);
if(($fpos = strrstr($output_lc, '</body>')) ||
($fpos = strrstr($output_lc, '</html>')))
$output = substr($output, 0, $fpos) . "$__page_footer\n" . substr($output, $fpos);
else
$output .= "\n$__page_footer";
// reset those global vars
$__page_header = $__page_footer = '';
// correct absolute paths in images and other tags
$output = preg_replace('/(src|href|background)=(["\']?)(\/[a-z0-9_\-]+)/Ui', "\\1=\\2$base_path\\3", $output);
$output = str_replace('$__skin_path', $base_path, $output);
print rcube_charset_convert($output, 'UTF-8', $this->charset);
}
} // end class rcube_html_page
/**
* Base class to build a HTML for element
*
* @package HTML
*/
class rcube_form_element
{
var $uppertags = FALSE;
var $upperattribs = FALSE;
var $upperprops = FALSE;
var $newline = FALSE;
var $attrib = array();
/**
* Create string with saved attributes
*
* @return string HTML formatted tag attributes
*/
function create_attrib_string()
{
if (!sizeof($this->attrib))
return '';
if ($this->name!='')
$this->attrib['name'] = $this->name;
$attrib_arr = array();
foreach ($this->attrib as $key => $value)
{
// don't output some internally used attributes
if (in_array($key, array('form', 'quicksearch')))
continue;
// skip if size if not numeric
if (($key=='size' && !is_numeric($value)))
continue;
// skip empty eventhandlers
if ((strpos($key,'on')===0 && $value==''))
continue;
// encode textarea content
if ($key=='value')
$value = Q($value, 'strict', FALSE);
// attributes with no value
if (in_array($key, array('checked', 'multiple', 'disabled', 'selected', 'nowrap')))
{
if ($value)
$attrib_arr[] = sprintf('%s="%s"', $this->_conv_case($key, 'attrib'), $key);
}
// don't convert size of value attribute
else if ($key=='value')
$attrib_arr[] = sprintf('%s="%s"', $this->_conv_case($key, 'attrib'), $value);
// regular tag attributes
else
$attrib_arr[] = sprintf('%s="%s"', $this->_conv_case($key, 'attrib'), $this->_conv_case($value, 'value'));
}
return sizeof($attrib_arr) ? ' '.implode(' ', $attrib_arr) : '';
}
/**
* Convert tags and attributes to upper-/lowercase
*
* @param string Input string
* @param string Value type (can either be "tag" or "attrib")
* @return string Converted output string
* @access private
*/
function _conv_case($str, $type='attrib')
{
if ($type == 'tag')
return $this->uppertags ? strtoupper($str) : strtolower($str);
else if ($type == 'attrib')
return $this->upperattribs ? strtoupper($str) : strtolower($str);
else if ($type == 'value')
return $this->upperprops ? strtoupper($str) : strtolower($str);
}
}
/**
* Builder for an <input> field
*
* @package HTML
*/
class input_field extends rcube_form_element
{
var $type = 'text';
/**
* Constructor
* @param array Named tag attributes
*/
function input_field($attrib=array())
{
if (is_array($attrib))
$this->attrib = $attrib;
if ($attrib['type'])
$this->type = $attrib['type'];
if ($attrib['newline'])
$this->newline = TRUE;
}
/**
* Compose input tag
*
* @param string Field value
* @param array Additional tag attributes
* @return string Final HTML code
*/
function show($value=NULL, $attrib=NULL)
{
// overwrite object attributes
if (is_array($attrib))
$this->attrib = array_merge($this->attrib, $attrib);
// set value attribute
if ($value!==NULL)
$this->attrib['value'] = $value;
$this->attrib['type'] = $this->type;
// return final tag
return sprintf(
'<%s%s />%s',
$this->_conv_case('input', 'tag'),
$this->create_attrib_string(),
($this->newline ? "\n" : ""));
}
}
/**
* Builder for a <input type="text"> field
*
* @package HTML
*/
class textfield extends input_field
{
var $type = 'text';
}
/**
* Builder for a <input type="password"> field
*
* @package HTML
*/
class passwordfield extends input_field
{
var $type = 'password';
}
/**
* Builder for <input type="radio"> fields
*
* @package HTML
*/
class radiobutton extends input_field
{
var $type = 'radio';
}
/**
* Builder for <input type="checkbox"> fields
*
* @package HTML
*/
class checkbox extends input_field
{
var $type = 'checkbox';
/**
* Compose input tag
*
* @param string Field value
* @param array Additional tag attributes
* @return string Final HTML code
*/
function show($value='', $attrib=NULL)
{
// overwrite object attributes
if (is_array($attrib))
$this->attrib = array_merge($this->attrib, $attrib);
$this->attrib['type'] = $this->type;
if ($value && (string)$value==(string)$this->attrib['value'])
$this->attrib['checked'] = TRUE;
else
$this->attrib['checked'] = FALSE;
// return final tag
return sprintf(
'<%s%s />%s',
$this->_conv_case('input', 'tag'),
$this->create_attrib_string(),
($this->newline ? "\n" : ""));
}
}
/**
* Builder for a <textarea> field
*
* @package HTML
*/
class textarea extends rcube_form_element
{
/**
* Constructor
* @param array Named tag attributes
*/
function textarea($attrib=array())
{
$this->attrib = $attrib;
if ($attrib['newline'])
$this->newline = TRUE;
}
/**
* Create HTML representation for this field
*
* @param string Field value
* @param array Additional tag attributes
* @return string Final HTML code
*/
function show($value='', $attrib=NULL)
{
// overwrite object attributes
if (is_array($attrib))
$this->attrib = array_merge($this->attrib, $attrib);
// take value attribute as content
if ($value=='')
$value = $this->attrib['value'];
// make shure we don't print the value attribute
if (isset($this->attrib['value']))
unset($this->attrib['value']);
if (!empty($value) && !isset($this->attrib['mce_editable']))
$value = Q($value, 'strict', FALSE);
// return final tag
return sprintf(
'<%s%s>%s</%s>%s',
$this->_conv_case('textarea', 'tag'),
$this->create_attrib_string(),
$value,
$this->_conv_case('textarea', 'tag'),
($this->newline ? "\n" : ""));
}
}
/**
* Builder for group of hidden form fields
*
* @package HTML
*/
class hiddenfield extends rcube_form_element
{
var $fields_arr = array();
var $newline = TRUE;
/**
* Constructor
*
* @param array Named tag attributes
*/
function hiddenfield($attrib=NULL)
{
if (is_array($attrib))
$this->add($attrib);
}
/**
* Add a hidden field to this instance
* @param array Named tag attributes
*/
function add($attrib)
{
$this->fields_arr[] = $attrib;
}
/**
* Create HTML code for the hidden fields
*
* @return string Final HTML code
*/
function show()
{
$out = '';
foreach ($this->fields_arr as $attrib)
{
$this->attrib = $attrib;
$this->attrib['type'] = 'hidden';
$out .= sprintf(
'<%s%s />%s',
$this->_conv_case('input', 'tag'),
$this->create_attrib_string(),
($this->newline ? "\n" : ""));
}
return $out;
}
}
/**
* Builder for HTML drop-down menus
* Syntax:<pre>
* // create instance. arguments are used to set attributes of select-tag
* $select = new select(array('name' => 'fieldname'));
*
* // add one option
* $select->add('Switzerland', 'CH');
*
* // add multiple options
* $select->add(array('Switzerland','Germany'), array('CH','DE'));
*
* // generate pulldown with selection 'Switzerland' and return html-code
* // as second argument the same attributes available to instanciate can be used
* print $select->show('CH');
* </pre>
*
* @package HTML
*/
class select extends rcube_form_element
{
var $options = array();
/**
* Constructor
*
* @param array Named tag attributes
*/
function select($attrib=NULL)
{
if (is_array($attrib))
$this->attrib = $attrib;
if ($attrib['newline'])
$this->newline = TRUE;
}
/**
* Add one ore more menu options
*
* @param mixed Array with names or single option name
* @param mixed Array with values or single option value
*/
function add($names, $values=NULL)
{
if (is_array($names))
{
foreach ($names as $i => $text)
$this->options[] = array('text' => $text, 'value' => (string)$values[$i]);
}
else
$this->options[] = array('text' => $names, 'value' => (string)$values);
}
/**
* Generate HTML code for this drop-down menu
*
* @param string Value of the selected option
* @param array Additional tag attributes
* @return string Final HTML code
*/
function show($select=array(), $attrib=NULL)
{
$options_str = "\n";
$value_str = $this->_conv_case(' value="%s"', 'attrib');
if (!is_array($select))
$select = array((string)$select);
foreach ($this->options as $option)
{
$selected = ((isset($option['value']) &&
in_array($option['value'], $select, TRUE)) ||
(in_array($option['text'], $select, TRUE))) ?
$this->_conv_case(' selected="selected"', 'attrib') : '';
$options_str .= sprintf("<%s%s%s>%s</%s>\n",
$this->_conv_case('option', 'tag'),
!empty($option['value']) ? sprintf($value_str, Q($option['value'])) : '',
$selected,
Q($option['text'], 'strict', FALSE),
$this->_conv_case('option', 'tag'));
}
// return final tag
return sprintf('<%s%s>%s</%s>%s',
$this->_conv_case('select', 'tag'),
$this->create_attrib_string(),
$options_str,
$this->_conv_case('select', 'tag'),
($this->newline ? "\n" : ""));
}
}
?>

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