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[tt-rss.git] / lib / htmlpurifier / library / HTMLPurifier / HTMLModule / Tidy / XHTMLAndHTML4.php

<?php

class HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4 extends HTMLPurifier_HTMLModule_Tidy
{

    public function makeFixes() {

        $r = array();

        // == deprecated tag transforms ===================================

        $r['font']   = new HTMLPurifier_TagTransform_Font();
        $r['menu']   = new HTMLPurifier_TagTransform_Simple('ul');
        $r['dir']    = new HTMLPurifier_TagTransform_Simple('ul');
        $r['center'] = new HTMLPurifier_TagTransform_Simple('div',  'text-align:center;');
        $r['u']      = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:underline;');
        $r['s']      = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');
        $r['strike'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');

        // == deprecated attribute transforms =============================

        $r['caption@align'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
                // we're following IE's behavior, not Firefox's, due
                // to the fact that no one supports caption-side:right,
                // W3C included (with CSS 2.1). This is a slightly
                // unreasonable attribute!
                'left'   => 'text-align:left;',
                'right'  => 'text-align:right;',
                'top'    => 'caption-side:top;',
                'bottom' => 'caption-side:bottom;' // not supported by IE
            ));

        // @align for img -------------------------------------------------
        $r['img@align'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
                'left'   => 'float:left;',
                'right'  => 'float:right;',
                'top'    => 'vertical-align:top;',
                'middle' => 'vertical-align:middle;',
                'bottom' => 'vertical-align:baseline;',
            ));

        // @align for table -----------------------------------------------
        $r['table@align'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
                'left'   => 'float:left;',
                'center' => 'margin-left:auto;margin-right:auto;',
                'right'  => 'float:right;'
            ));

        // @align for hr -----------------------------------------------
        $r['hr@align'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
                // we use both text-align and margin because these work
                // for different browsers (IE and Firefox, respectively)
                // and the melange makes for a pretty cross-compatible
                // solution
                'left'   => 'margin-left:0;margin-right:auto;text-align:left;',
                'center' => 'margin-left:auto;margin-right:auto;text-align:center;',
                'right'  => 'margin-left:auto;margin-right:0;text-align:right;'
            ));

        // @align for h1, h2, h3, h4, h5, h6, p, div ----------------------
        // {{{
            $align_lookup = array();
            $align_values = array('left', 'right', 'center', 'justify');
            foreach ($align_values as $v) $align_lookup[$v] = "text-align:$v;";
        // }}}
        $r['h1@align'] =
        $r['h2@align'] =
        $r['h3@align'] =
        $r['h4@align'] =
        $r['h5@align'] =
        $r['h6@align'] =
        $r['p@align']  =
        $r['div@align'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('align', $align_lookup);

        // @bgcolor for table, tr, td, th ---------------------------------
        $r['table@bgcolor'] =
        $r['td@bgcolor'] =
        $r['th@bgcolor'] =
            new HTMLPurifier_AttrTransform_BgColor();

        // @border for img ------------------------------------------------
        $r['img@border'] = new HTMLPurifier_AttrTransform_Border();

        // @clear for br --------------------------------------------------
        $r['br@clear'] =
            new HTMLPurifier_AttrTransform_EnumToCSS('clear', array(
                'left'  => 'clear:left;',
                'right' => 'clear:right;',
                'all'   => 'clear:both;',
                'none'  => 'clear:none;',
            ));

        // @height for td, th ---------------------------------------------
        $r['td@height'] =
        $r['th@height'] =
            new HTMLPurifier_AttrTransform_Length('height');

        // @hspace for img ------------------------------------------------
        $r['img@hspace'] = new HTMLPurifier_AttrTransform_ImgSpace('hspace');

        // @noshade for hr ------------------------------------------------
        // this transformation is not precise but often good enough.
        // different browsers use different styles to designate noshade
        $r['hr@noshade'] =
            new HTMLPurifier_AttrTransform_BoolToCSS(
                'noshade',
                'color:#808080;background-color:#808080;border:0;'
            );

        // @nowrap for td, th ---------------------------------------------
        $r['td@nowrap'] =
        $r['th@nowrap'] =
            new HTMLPurifier_AttrTransform_BoolToCSS(
                'nowrap',
                'white-space:nowrap;'
            );

        // @size for hr  --------------------------------------------------
        $r['hr@size'] = new HTMLPurifier_AttrTransform_Length('size', 'height');

        // @type for li, ol, ul -------------------------------------------
        // {{{
            $ul_types = array(
                'disc'   => 'list-style-type:disc;',
                'square' => 'list-style-type:square;',
                'circle' => 'list-style-type:circle;'
            );
            $ol_types = array(
                '1'   => 'list-style-type:decimal;',
                'i'   => 'list-style-type:lower-roman;',
                'I'   => 'list-style-type:upper-roman;',
                'a'   => 'list-style-type:lower-alpha;',
                'A'   => 'list-style-type:upper-alpha;'
            );
            $li_types = $ul_types + $ol_types;
        // }}}

        $r['ul@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
        $r['ol@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
        $r['li@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);

        // @vspace for img ------------------------------------------------
        $r['img@vspace'] = new HTMLPurifier_AttrTransform_ImgSpace('vspace');

        // @width for hr, td, th ------------------------------------------
        $r['td@width'] =
        $r['th@width'] =
        $r['hr@width'] = new HTMLPurifier_AttrTransform_Length('width');

        return $r;

    }

}

// vim: et sw=4 sts=4