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Adds buttons to insert HTML formatting, and shows a live preview box of what the comment will look like
// ==UserScript==
// @name AO3: Comment Formatting and Preview
// @namespace https://greasyfork.org/en/users/906106-escctrl
// @version 2.2
// @description Adds buttons to insert HTML formatting, and shows a live preview box of what the comment will look like
// @author escctrl
// @license MIT
// @match *://*.archiveofourown.org/tags/*/comments*
// @match *://*.archiveofourown.org/users/*/inbox*
// @match *://*.archiveofourown.org/works/*
// @match *://archiveofourown.org/collections/*/works/*
// @match *://*.archiveofourown.org/comments/*
// @match *://*.archiveofourown.org/comments?*
// @match *://*.archiveofourown.org/admin_posts/*
// @exclude *://archiveofourown.org/works/*/new
// @exclude *://archiveofourown.org/works/*/edit*
// @exclude *://archiveofourown.org/works/new*
// @exclude *://archiveofourown.org/works/search*
// @grant none
// @require https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js
// @require https://ajax.googleapis.com/ajax/libs/jqueryui/1.13.2/jquery-ui.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/jqueryui-touch-punch/0.2.3/jquery.ui.touch-punch.min.js
// ==/UserScript==
(function($) {
'use strict';
/*********************************************************
GUI CONFIGURATION
*********************************************************/
// load storage on page startup
var standardmap = new Map(JSON.parse(localStorage.getItem('cmtfmtstandard'))); // only a key: true/false list
var custommap = new Map(JSON.parse(localStorage.getItem('cmtfmtcustom'))); // all content we need from user to display & insert what they want
// if the background is dark, use the dark UI theme to match
let dialogtheme = lightOrDark($('body').css('background-color')) == "dark" ? "ui-darkness" : "base";
// the config dialog container
let cfg = document.createElement('div');
cfg.id = 'cmtFmtDialog';
// adding the jQuery stylesheet to style the dialog, and fixing the interferance of AO3's styling
$("head").append(`<link rel="stylesheet" href="https://code.jquery.com/ui/1.13.2/themes/${dialogtheme}/jquery-ui.css">`)
.prepend(`<script src="https://use.fontawesome.com/ed555db3cc.js" />`)
.append(`<style tyle="text/css">#${cfg.id}, .ui-dialog .ui-dialog-buttonpane button {font-size: revert; line-height: 1.286;}
#${cfg.id} form {box-shadow: revert; cursor:auto;}
#${cfg.id} #custombutton a {cursor:pointer;}
#${cfg.id} legend {font-size: inherit; height: auto; width: auto; opacity: inherit;}
#${cfg.id} fieldset {background: revert; box-shadow: revert;}
#${cfg.id} input[type='text'] { position: relative; top: 1px; padding: .4em; width: 3em; }
#${cfg.id} ul { padding-left: 2em; }
#${cfg.id} ul li { list-style: circle; }
#${cfg.id} #stdbutton label { font-family: FontAwesome, sans-serif; }
#${cfg.id} #custombutton div button { width: 0.5em; }
#${cfg.id} #custombutton div input:nth-of-type(1) { width: 2em; }
#${cfg.id} #custombutton div input:nth-of-type(2) { width: 6em; }
#${cfg.id} #custombutton div input:nth-of-type(3) { width: 10em; }
#${cfg.id} #custombutton div input:nth-of-type(4) { width: 10em; }
</style>`);
// the available standard buttons, display & insert stuff
let config_std = new Map([
["bold", { icon: "", text: "Bold", ins_pre: "<b>", ins_app: "</b>" }],
["italic", { icon: "", text: "Italic", ins_pre: "<em>", ins_app: "</em>" }],
["underline", { icon: "", text: "Underline", ins_pre: "<u>", ins_app: "</u>" }],
["strike", { icon: "", text: "Strikethrough", ins_pre: "<s>", ins_app: "</s>" }],
["link", { icon: "", text: "Link", ins_pre: "<a href=\"\">", ins_app: "</a>" }],
["image", { icon: "", text: "Image", ins_pre: "<img src=\"", ins_app: "\" />" }],
["quote", { icon: "", text: "Quote", ins_pre: "<blockquote>", ins_app: "</blockquote>" }],
["paragraph", { icon: "", text: "Paragraph", ins_pre: "<p>", ins_app: "</p>" }],
["listnum", { icon: "", text: "Numbered List", ins_pre: "<ol><li>", ins_app: "</li></ol>" }],
["listbull", { icon: "", text: "Bullet List", ins_pre: "<ul><li>", ins_app: "</li></ul>" }],
["listitem", { icon: "", text: "List Item", ins_pre: "<li>", ins_app: "</li>" }],
]);
// build GUI for chosen enable/disable of standard buttons
let standardbuttons = '';
config_std.forEach((val, key) => {
standardbuttons += `<label for="${key}" title="${val.text}">${val.icon}</label><input type="checkbox" name="${key}" id="${key}" ${(standardmap.get(key)==="true" || standardmap.size == 0) ? 'checked="checked"' : ""}>`;
});
// reformat the stored custom buttons to match the standard
let config_custom = new Map();
custommap.forEach((val, key) => {
val = JSON.parse(val); // turn the string into an array of 4x2 each
let newval = {}; // turn the array into an object
val.forEach((v) => {
newval[v[0]] = v[1];
});
config_custom.set(key, newval);
});
// build GUI for stored custom buttons
let custombuttons = '';
config_custom.forEach((val) => {
custombuttons += `<div><button class="remove">-</button><input type="text" name="icon" value="${val.icon}"><input type="text" name="text" value="${val.text}">
<input type="text" name="ins_pre" value="${val.ins_pre}"><input type="text" name="ins_app" value="${val.ins_app}"></div>`;
});
// template for a blank row to add a custom button (is cloned before inserting into DOM)
let newcustombutton = `<div><button class="remove">-</button><input type="text" name="icon" value="Icon"><input type="text" name="text" value="Title">
<input type="text" name="ins_pre" value="Insert Before"><input type="text" name="ins_app" value="Insert After"></div>`;
$(cfg).html(`<form>
<fieldset id='stdbutton'>
<legend>Standard text formatting</legend>
<p>Select the buttons you'd like to see as options on the button bar.</p>
${standardbuttons}
</fieldset>
<fieldset id='custombutton'>
<legend>Custom HTML or text</legend>
<p>Define custom buttons, which will insert HTML and/or text.</p>
<ul><li>In the first field, choose <a href="https://fontawesome.com/v4/icons/">the Icon</a> you want on the button.<br />
Copy its 4-letter Unicode (for example "f004" for the heart) into this field.</li>
<li>If you leave the Icon field empty, the Title from the second field is shown on the button instead. The Title also appears as mouseover text.</li>
<li>Put the text you want inserted around the cursor position into the Insert Before and Insert After fields.</li></ul>
${custombuttons}
<div><button class="add">+</button></div>
</fieldset>
<p>Any changes only apply after reloading the page.</p>
</form>`);
// attach it to the DOM so that selections work (but only if #main exists, else it might be a Retry Later error page)
if ($("#main").length == 1) $("body").append(cfg);
// turn checkboxes and radiobuttons into pretty buttons
$( "#cmtFmtDialog input[type='checkbox'], #cmtFmtDialog input[type='radio']" ).checkboxradio({ icon: false });
// optimizing the size of the GUI in case it's a mobile device
let dialogwidth = parseInt($("body").css("width")); // parseInt ignores letters (px)
dialogwidth = dialogwidth > 550 ? 550 : dialogwidth * 0.9;
// initialize the dialog (but don't open it)
$( "#cmtFmtDialog" ).dialog({
appendTo: "#main",
modal: true,
title: 'Comment Formatting Buttons',
draggable: true,
resizable: false,
autoOpen: false,
width: dialogwidth,
position: {my:"center", at: "center top"},
buttons: {
Reset: deleteConfig,
Save: storeConfig,
Cancel: function() { $( "#cmtFmtDialog" ).dialog( "close" ); }
}
});
// event triggers if form is submitted with the <enter> key
$( "#cmtFmtDialog form" ).on("submit", (e) => {
e.preventDefault();
storeConfig();
});
// putting event triggers on buttons that will delete custom rows
function evRemoveRow(el) {
$(el).on("click", (e) => {
e.cancelBubble = true;
e.preventDefault();
$(e.target).parent().remove(); // delete whole div
});
}
// run it immediately on the stored custom buttons
evRemoveRow($( "#cmtFmtDialog button.remove" ));
// putting event trigger on button that will add blank custom rows
$( "#cmtFmtDialog button.add" ).on("click", (e) => {
e.cancelBubble = true;
e.preventDefault();
// add a new blank row and attach the remove event again
$(e.target).parent().before( $(newcustombutton).clone() );
evRemoveRow($( "#cmtFmtDialog button.remove:last-of-type" ));
});
function deleteConfig() {
// deselects all buttons, empties all fields in the form
$('#cmtFmtDialog form').trigger("reset");
$('#cmtFmtDialog button.remove').trigger("click");
// deletes the localStorage
localStorage.removeItem('cmtfmtstandard');
localStorage.removeItem('cmtfmtcustom');
$( "#cmtFmtDialog" ).dialog( "close" );
}
function storeConfig() {
// build a Map() for enabled standard buttons => button -> true/false
let storestd = new Map();
$( "#cmtFmtDialog #stdbutton [name]" ).each(function() { storestd.set( $(this).prop('name'), String($(this).prop('checked')) ); });
localStorage.setItem('cmtfmtstandard', JSON.stringify(Array.from(storestd.entries())));
// build a Map() for the custom buttons => custom# -> { icon: X, text: X, ins_pre: X, ins_app: X }
let storecustom = new Map();
$( "#cmtFmtDialog #custombutton div:has(input)" ).each((i, div) => {
let parts = new Map();
$(div).find('[name]').each(function() { parts.set( $(this).prop('name'), $(this).prop('value') ); });
storecustom.set('custom'+i, JSON.stringify(Array.from(parts.entries())));
});
localStorage.setItem('cmtfmtcustom', JSON.stringify(Array.from(storecustom.entries())));
$( "#cmtFmtDialog" ).dialog( "close" );
}
/* CREATING THE LINK TO OPEN THE CONFIGURATION DIALOG */
// if no other script has created it yet, write out a "Userscripts" option to the main navigation
if ($('#scriptconfig').length == 0) {
$('#header ul.primary.navigation li.dropdown').last()
.after(`<li class="dropdown" id="scriptconfig">
<a class="dropdown-toggle" href="/" data-toggle="dropdown" data-target="#">Userscripts</a>
<ul class="menu dropdown-menu"></ul></li>`);
}
// then add this script's config option to navigation dropdown
$('#scriptconfig .dropdown-menu').append(`<li><a href="javascript:void(0);" id="opencfg_cmtfmt">Comment Formatting Buttons</a></li>`);
// on click, open the configuration dialog
$("#opencfg_cmtfmt").on("click", function(e) {
$( "#cmtFmtDialog" ).dialog('open');
});
/*********************************************************
COMMENT BAR AND PREVIEW FUNCTIONALITY
*********************************************************/
// merge the enabled standard and custom buttons into one list
let config = new Map();
config_std.forEach((val, key) => { if (standardmap.get(key)==="true" || standardmap.size == 0) config.set(key, val); });
config_custom.forEach((val, key) => {
if (val.icon !== "") val.icon = `&#x${val.icon};`; // add what Font Awesome needs to display properly
config.set(key, val);
});
$("head").append(`<style type="text/css"> ul.comment-format { font-family: FontAwesome, sans-serif; float: left; }
ul.comment-format a { cursor: default; }
ul.comment-format .fontawe { font-family: FontAwesome, sans-serif; }
div.comment-preview.userstuff { border: 1px inset #f0f0f0; min-height: 1em; padding: 0.2em 1em; line-height: 1.5; } </style>`);
// collate the button bar
let buttonBar = document.createElement('ul');
$(buttonBar).addClass('actions comment-format');
for (let c of config) {
let li = document.createElement('li');
li.title = c[1].text;
li.innerHTML = `<a class="${c[0]}">${ (c[1].icon === "") ? c[1].text : c[1].icon}</a>`;
if (c[1].icon !== "") $(li).addClass("fontawe");
$(buttonBar).append(li);
}
$(buttonBar).find('a').on('click', function(e) {
e.cancelBubble = true;
e.preventDefault();
insert_format(e.target);
});
// preview box template (will be cloned when inserting into DOM)
let preview = `<div class='comment-preview userstuff' title='Comment Preview (approximate)'></div>`;
// click event function called with the button <a> that was clicked (so we know which textarea to insert it to)
function insert_format(elm) {
let area = $(elm).parent().parent().next('textarea')[0]; // the textarea element we're dealing with
let text = $(area).val(); // the original content of the comment box
let cursor_start = area.selectionStart, cursor_end = area.selectionEnd; // any highlighted text
let fmt = config.get(elm.className); // grab the formatting HTML corresponding to the clicked button
// set the comment box text with the new content, and focus back on it
$(area).val(
text.slice(0, cursor_start) + // text from before cursor position or highlight
fmt.ins_pre + text.slice(cursor_start, cursor_end) + fmt.ins_app + // wrap any highlighted text in the formatting HTML
text.slice(cursor_end) // text from after cursor position or highlight
).focus();
// set the cursor position to the same value so we don't highlight anymore
let cursor_new =
// if we only inserted format HTML, set it between the halves so you can enter the text to format
(cursor_start == cursor_end) ? cursor_start + fmt.ins_pre.length :
// if we highlighted, and this is a link (so the link text is already done), set the cursor into the href=""
(elm.className == "link") ? cursor_start + fmt.ins_pre.length - 2 :
// otherwise always set it at the end of the inserted text i.e. the same distance from the end as originally
$(area).val().length - (text.length - cursor_end);
area.selectionStart = area.selectionEnd = cursor_new;
// manually trigger the value-has-changed event so the preview updates (not calling update_preview directly as it would fail on Sticky Comment Box)
$(area).trigger('input');
}
// function called when anything changes (input event trigger) in the textarea
function update_preview(elm) {
let prevbox = $(elm).siblings('div.comment-preview')[0];
prevbox.innerHTML = parse_preview($(elm).val());
}
// adding the button bar & preview box for any visible comment area (clone with events!)
$('textarea[id^="comment_content_for"]')
.before($(buttonBar).clone(true, true))
.after($(preview).clone())
.on('input', function(e) { update_preview(e.target); })
.each(function() { update_preview(this); }); // update the preview for reloaded pages with cached comment text
// Support for Sticky Comment Box!
// if this script executes first, we may have to wait for the Sticky Comment Box to appear in the DOM
if ($('#float_cmt_dlg').length == 0) {
const observer = new MutationObserver(function(mutList, obs) {
for (const mut of mutList) { for (const node of mut.addedNodes) {
// check if the added node is our comment box
if (node.id == 'float_cmt_dlg') {
obs.disconnect(); // stop listening immediately, we have what we needed
// add the buttonbar to the Sticky Comment Box (it doesn't get a preview field to save space)
$('#float_cmt_userinput textarea').before($(buttonBar).clone(true, true).css('font-size', '80%'));
}
}}
});
// listening to as few changes as possible: only direct children of <body>
observer.observe($('body').get(0), { attributes: false, childList: true, subtree: false });
// failsafe: stop listening after 5 seconds (in case the other script isn't running)
// this will always execute even if the box was already found and the observer disconnected previously
let timeout = setTimeout(() => {
observer.disconnect();
}, 5 * 1000);
}
// when the Sticky Comment Box script executed first and the textarea is already there, we immediately add the button bar
else $('#float_cmt_userinput textarea').before($(buttonBar).clone(true, true).css('font-size', '80%'));
// adding the bar for any loaded comment areas
// global AJAX listener but we're only interested in the calls that add the comment reply box
XMLHttpRequest.prototype.getResponseHeader = function() { // jQuery ajaxSuccess method doesn't catch the reply pages
if (!(this.readyState == 4 && this.status == 200)) return true;
var xhrurl = this.responseURL;
var params = (new URL(xhrurl)).searchParams;
// When replying to comments (on work or tag page)
if (xhrurl.indexOf("comments/add_comment_reply?") !== -1) {
$('textarea#comment_content_for_'+params.get("id"))
.before($(buttonBar).clone(true, true))
.after($(preview).clone())
.on('input', function(e) { update_preview(e.target); });
}
// When replying to inbox comments (floating box)
else if (xhrurl.indexOf("inbox/reply?") !== -1) {
$('textarea#comment_content_for_'+params.get("comment_id"))
.before($(buttonBar).clone(true, true))
.after($(preview).clone())
.on('input', function(e) { update_preview(e.target); });
}
// When editing a comment
else if (xhrurl.indexOf("/comments/") !== -1 && xhrurl.indexOf("/edit") !== -1) {
let commentid = xhrurl.match(/\d+/);
$('li#comment_'+commentid[0]+' textarea[id^=comment_content_for_]')
.before($(buttonBar).clone(true, true))
.after($(preview).clone())
.on('input', function(e) { update_preview(e.target); })
.each(function() { update_preview(this); }); // update the preview with the existing comment text
}
};
function parse_preview(content) {
// if the comment box is still empty, show a simple placeholder
if (content == "") return "<p><i>preview</i></p>";
// if there is comment text, turn double linebreaks into paragraphs and single linebreaks into <br>
// linebreak compatibility
const lbr = (content.indexOf("\r\n") > -1) ? "\r\n" :
(content.indexOf("\r") > -1) ? "\r" : "\n";
// remove obvious issues: whitespaces between <li>'s, a <br> plus linebreak (while editing)
content = content.replace(/<\/li>\W+<li>/ig, '</li><li>');
content = content.replace(/<br \/>(\r\n|\r|\n)/ig, '<br />');
content = content.split(`${lbr}${lbr}`); // split content at each two linebreaks in a row
const regexLine = new RegExp(`${lbr}`, "g");
content.forEach((v, i) => {
v = v.replace(regexLine, "<br />"); // a single linebreak is replaced by a <br>
content[i] = "<p>"+v.trim()+"</p>"; // two linebreaks are wrapped in a <p>
});
return content.join(lbr);
}
})(jQuery);
// helper function to determine whether a color (the background in use) is light or dark
// https://awik.io/determine-color-bright-dark-using-javascript/
function lightOrDark(color) {
var r, g, b, hsp;
if (color.match(/^rgb/)) { color = color.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(?:,\s*(\d+(?:\.\d+)?))?\)$/);
r = color[1]; g = color[2]; b = color[3]; }
else { color = +("0x" + color.slice(1).replace(color.length < 5 && /./g, '$&$&'));
r = color >> 16; g = color >> 8 & 255; b = color & 255; }
hsp = Math.sqrt( 0.299 * (r * r) + 0.587 * (g * g) + 0.114 * (b * b) );
if (hsp>127.5) { return 'light'; } else { return 'dark'; }
}