container.php

<?php

// Part of php simple framework (psf)

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Copyright (c) Petr Bena <petr@bena.rocks> 2015 - 2018

if (!defined("PSF_ENTRY_POINT"))
    die("Not a valid psf entry point");

require_once (dirname(__FILE__) . "/../object.php");
require_once (dirname(__FILE__) . "/../../default_config.php");
require_once (dirname(__FILE__) . "/../../functions.php");
require_once (dirname(__FILE__) . "/primitive_object.php");

class HtmlContainer extends HtmlElement
{
    public $AutoInsertChilds = false;
    protected $Items = array();
    protected $cIndent = 4;

    function __construct($_parent = NULL)
    {
        global $psf_containers_auto_insert_child;
        $this->AutoInsertChilds = $psf_containers_auto_insert_child;
        parent::__construct($_parent);
    }

    protected function ReplaceControl($text)
    {
        return str_replace("\n", "<br>", $text);
    }

    public function AppendHtmlLine($html, $indent = -1)
    {
        $value = "";
        while ($indent-- > 0)
        {
            $value .= " ";
        }
        $this->AppendObject(new HtmlPrimitiveObject($value . $html), -1, true);
    }

    public function AppendHeader($text, $level = 1)
    {
        $this->AppendHtmlLine("<h$level>" . htmlspecialchars($text) . "</h$level>");
    }

    public function AppendHtml($html, $indent = -1)
    {
        $lines = explode("\n", $html);
        foreach ($lines as $l)
            $this->AppendHtmlLine($l, $indent);
    }

    public function AppendParagraph($text, $class = NULL)
    {
        $this->AppendHtmlLine($this->html_p($this->ReplaceControl(htmlspecialchars($text)), $class));
    }

    public function AppendPreformatted($text)
    {
        $pre = new HtmlPrimitiveObject("<pre>\n" . $text . "\n</pre>");
        // we have to disable indenting here, because it simply is not desired
        $pre->Indent = false;
        $this->AppendObject($pre, -1, true);
    }

    public function AppendPre($text)
    {
        $this->AppendPreformatted($text);
    }

    public function AppendLine()
    {
        $this->AppendHtmlLine("<hr>");
    }
    
    public function AppendLineBreak()
    {
        $this->AppendHtmlLine("<br>");
    }

    public function AppendObject($object, $indent = -1, $force = false)
    {
        if ($object === NULL)
            return;
        $object->Parent = $this;
        if ($force || !in_array($object, $this->Items))
            array_push($this->Items, $object);
    }
    
    public function AddChild($_child)
    {
        if ($_child === NULL)
            return;
        if ($this->AutoInsertChilds)
        {
            $this->AppendObject($_child);
        }
    }

    public function _gen_html_tag($name, $value, $param = "")
    {
        if (strlen($param) == 0)
            return "<$name>" . $value . "</$name>";
        else
            return "<$name $param>" . $value . "</$name>";
    }

    public function html_b($text)                   { return $this->_gen_html_tag("b",   $text); }
    public function html_div($text)                 { return $this->_gen_html_tag("div", $text); }
    public function html_font($text, $param = "")   { return $this->_gen_html_tag("font", $text, $param); }
    public function html_p($text, $class = NULL)
    {
        if ($class === NULL)
            return $this->_gen_html_tag("p",   $text);
        else
            return $this->_gen_html_tag("p",   $text, 'class="' . $class . '"');
    }

    public function InsertFileToBody($f)
    {
        $tx =  file_get_contents($f);
        if ($tx === FALSE)
            throw new Exception("File couldn't be read: " . $f);
        $this->AppendObject(new HtmlPrimitiveObject($tx));
    }

    public function ToHtml()
    {
       $indent = 4;
       $_b = "";
       foreach ($this->Items as $html)
       {
           // Convert the object to html
           if ($this->Indent && $html->Indent)
               $_b .= psf_indent_text($html->ToHtml(), $indent);
           else
               $_b .= $html->ToHtml() . "\n";
       }
       return $_b;
    }
}