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/* See COPYING file for copyright, license and warranty details. */
if(window.content && window.content.document.simplyread_original === undefined) window.content.document.simplyread_original = false;
function simplyread()
{
/* count the number of <p> tags that are direct children of parenttag */
function count_p(parenttag)
{
var n = 0;
var c = parenttag.childNodes;
for (var i = 0; i < c.length; i++) {
if (c[i].tagName == "p" || c[i].tagName == "P")
n++;
}
return n;
}
var doc;
doc = (document.body === undefined)
? window.content.document : document;
/* if simplyread_original is set, then the simplyread version is currently active,
* so switch to the simplyread_original html */
if (doc.simplyread_original) {
doc.body.innerHTML = doc.simplyread_original;
for (var i = 0; i < doc.styleSheets.length; i++)
doc.styleSheets[i].disabled = false;
doc.simplyread_original = false
return 0;
}
doc.simplyread_original = doc.body.innerHTML;
doc.body.innerHTML = doc.body.innerHTML.replace(/<br[^>]*>\s*<br[^>]*>/g, "<p>");
var biggest_num = 0;
var biggest_tag;
/* search for tag with most direct children <p> tags */
var t = doc.getElementsByTagName("*");
for (var i = 0; i < t.length; i++) {
var p_num = count_p(t[i]);
if (p_num > biggest_num) {
biggest_num = p_num;
biggest_tag = t[i];
}
}
if (biggest_num == 0) return 1;
/* save and sanitise content of chosen tag */
var fresh = doc.createElement("div");
fresh.innerHTML = biggest_tag.innerHTML;
fresh.innerHTML = fresh.innerHTML.replace(/<\/?font[^>]*>/g, "");
fresh.innerHTML = fresh.innerHTML.replace(/style="[^"]*"/g, "");
fresh.innerHTML = fresh.innerHTML.replace(/<\/?a[^>]*>/g, "");
fresh.innerHTML = fresh.innerHTML.replace(/<\/?span[^>]*>/g, "");
fresh.innerHTML = fresh.innerHTML.replace(/<style[^>]*>/g, "<style media=\"aural\">");
for (var i = 0; i < doc.styleSheets.length; i++)
doc.styleSheets[i].disabled = true;
doc.body.innerHTML =
"<style type=\"text/css\"> p{margin:0ex auto;}" +
" p+p{text-indent:2em;} body {background:#cccccc none}" +
" img{display:block; max-width: 32em; padding:1em; margin:auto;}" +
" h1,h2,h3,h4 {font-weight:normal}</style>" +
"<div style=\"width:34em; padding:8em; padding-top:2em;" +
" background-color:white; margin:auto; line-height:1.4;" +
" text-align:justify; font-family:serif;" +
" text-rendering:optimizeLegibility; hyphens:auto;\">" +
"<h1 style=\"text-align:center;text-transform:uppercase\">"+doc.title+"</h1>" +
"<hr style=\"width:6em; margin-top:2ex auto;\"/>" +
fresh.innerHTML + "</div>";
return 0;
}
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