File: lib/plugins/function.html_options.php

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File: lib/plugins/function.html_options.php
Role: Example script
Content type: text/plain
Description: Example script
Class: g-template-php
Process and render templates generating PHP code
Author: By
Last change:
Date: 2 years ago
Size: 5,483 bytes
 

 

Contents

Class file image Download
<?php
/**
 * gTemplate Plugins
 *
 * @package gTemplate
 * @subpackage Plugins
 */

/**
 * gTemplate {html_options} function plugin
 * Type: function<br>
 * Name: html_options<br>
 * Purpose: Prints the list of <option> tags generated from
 * the passed parameters<br>
 * Params:
 * <pre>
 * - name (optional) - string default "select"
 * - values (required) - if no options supplied) - array
 * - options (required) - if no values supplied) - associative array
 * - selected (optional) - string default not set
 * - output (required) - if not options supplied) - array
 * - id (optional) - string default not set
 * - class (optional) - string default not set
 * </pre>
 *
 * @version 1.0
 * @author Tamas David (G-Lex) <glex at mittudomain.info>
 * @link https://github.com/glex86/g-template-php G-Template Engine on Github
 *
 * @internal Some source codes are taken from Smarty
 * @internal author Monte Ohrt <monte at ohrt dot com>
 * @internal author Ralf Strehle (minor optimization) <ralf dot strehle at yahoo dot de>
 * @internal link http://smarty.net Smarty
 */
function tpl_function_html_options($params, &$gTpl) {
    require_once(
'shared.escape_chars.php');

   
$name = null;
   
$values = null;
   
$options = null;
   
$selected = null;
   
$output = null;
   
$id = null;
   
$class = null;

   
$extra = '';

    foreach (
$params as $_key => $_val) {
        switch (
$_key) {
            case
'name':
            case
'class':
            case
'id':
                $
$_key = (string) $_val;
                break;

            case
'options':
               
$options = (array) $_val;
                break;

            case
'values':
            case
'output':
                $
$_key = array_values((array) $_val);
                break;

            case
'selected':
                if (
is_array($_val)) {
                   
$selected = array();
                    foreach (
$_val as $_sel) {
                       
$_sel = tpl_escape_chars((string) $_sel);
                       
$selected[$_sel] = true;
                    }
                } else {
                   
$selected = tpl_escape_chars((string) $_val);
                }
                break;

            case
'disabled':
            case
'readonly':
                if (!
is_scalar($_val)) {
                   
$gTpl->trigger_error("[SYNTAX] $_key attribute must be a scalar, only boolean true or string '$_key' will actually add the attribute in 'html_options' tag", E_USER_NOTICE, $gTpl->_file, $gTpl->_linenum);
                }

                if (
$_val === true || $_val === $_key) {
                   
$extra .= ' ' . $_key . '="' . tpl_escape_chars($_key) . '"';
                }

                break;

            default:
                if (!
is_array($_val)) {
                   
$extra .= ' ' . $_key . '="' . tpl_escape_chars($_val) . '"';
                } else {
                   
$gTpl->trigger_error("[SYNTAX] extra attribute '$_key' cannot be an array in 'html_options' tag", E_USER_NOTICE, $gTpl->_file, $gTpl->_linenum);
                }
                break;
        }
    }

    if (!isset(
$options) && !isset($values)) {
       
/* raise error here? */

       
return '';
    }

   
$_html_result = '';
   
$_idx = 0;

    if (isset(
$options)) {
        foreach (
$options as $_key => $_val) {
           
$_html_result .= tpl_function_html_options_optoutput($_key, $_val, $selected, $id, $class, $_idx);
        }
    } else {
        foreach (
$values as $_i => $_key) {
           
$_val = isset($output[$_i]) ? $output[$_i] : '';
           
$_html_result .= tpl_function_html_options_optoutput($_key, $_val, $selected, $id, $class, $_idx);
        }
    }

    if (!empty(
$name)) {
       
$_html_class = !empty($class) ? ' class="' . $class . '"' : '';
       
$_html_id = !empty($id) ? ' id="' . $id . '"' : '';
       
$_html_result = '<select name="' . $name . '"' . $_html_class . $_html_id . $extra . '>' . "\n" . $_html_result . '</select>' . "\n";
    }

    return
$_html_result;
}

function
tpl_function_html_options_optoutput($key, $value, $selected, $id, $class, &$idx) {
    if (!
is_array($value)) {
       
$_key = tpl_escape_chars($key);
       
$_html_result = '<option value="' . $_key . '"';
        if (
is_array($selected)) {
            if (isset(
$selected[$_key])) {
               
$_html_result .= ' selected="selected"';
            }
        } elseif (
$_key === $selected) {
           
$_html_result .= ' selected="selected"';
        }
       
$_html_class = !empty($class) ? ' class="' . $class . ' option"' : '';
       
$_html_id = !empty($id) ? ' id="' . $id . '-' . $idx . '"' : '';
       
$value = tpl_escape_chars((string) $value);
       
$_html_result .= $_html_class . $_html_id . '>' . $value . '</option>' . "\n";
       
$idx ++;
    } else {
       
$_idx = 0;
       
$_html_result = tpl_function_html_options_optgroup($key, $value, $selected, !empty($id) ? ($id . '-' . $idx) : null, $class, $_idx);
       
$idx ++;
    }

    return
$_html_result;
}

function
tpl_function_html_options_optgroup($key, $values, $selected, $id, $class, &$idx) {
   
$optgroup_html = '<optgroup label="' . tpl_escape_chars($key) . '">' . "\n";
    foreach (
$values as $key => $value) {
       
$optgroup_html .= tpl_function_html_options_optoutput($key, $value, $selected, $id, $class, $idx);
    }
   
$optgroup_html .= "</optgroup>\n";

    return
$optgroup_html;
}


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