☰

AO3: Comment Formatting and Preview

Adds buttons to insert HTML formatting, and shows a live preview box of what the comment will look like

目前為 2024-03-18 提交的版本，檢視 最新版本。

  1. // ==UserScript==
  2. // @name         AO3: Comment Formatting and Preview
  3. // @namespace    https://greasyfork.org/en/users/906106-escctrl
  4. // @version      2.1
  5. // @description  Adds buttons to insert HTML formatting, and shows a live preview box of what the comment will look like
  6. // @author       escctrl
  7. // @license      MIT
  8. // @match        *://*.archiveofourown.org/tags/*/comments*
  9. // @match        *://*.archiveofourown.org/users/*/inbox*
  10. // @match        *://*.archiveofourown.org/works/*
  11. // @match        *://archiveofourown.org/collections/*/works/*
  12. // @match        *://*.archiveofourown.org/comments/*
  13. // @match        *://*.archiveofourown.org/comments?*
  14. // @exclude      *://archiveofourown.org/works/*/new
  15. // @exclude      *://archiveofourown.org/works/*/edit*
  16. // @exclude      *://archiveofourown.org/works/new*
  17. // @exclude      *://archiveofourown.org/works/search*
  18. // @grant        none
  19. // @require      https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js
  20. // @require      https://ajax.googleapis.com/ajax/libs/jqueryui/1.13.2/jquery-ui.min.js
  21. // @require      https://cdnjs.cloudflare.com/ajax/libs/jqueryui-touch-punch/0.2.3/jquery.ui.touch-punch.min.js
  22. // ==/UserScript==
  23.  
  24. (function($) {
  25.     'use strict';
  26.  
  27.     /*********************************************************
  28.      GUI CONFIGURATION
  29.      *********************************************************/
  30.  
  31.     // load storage on page startup
  32.     var standardmap = new Map(JSON.parse(localStorage.getItem('cmtfmtstandard'))); // only a key: true/false list
  33.     var custommap = new Map(JSON.parse(localStorage.getItem('cmtfmtcustom'))); // all content we need from user to display & insert what they want
  34.  
  35.     // if the background is dark, use the dark UI theme to match
  36.     let dialogtheme = lightOrDark($('body').css('background-color')) == "dark" ? "ui-darkness" : "base";
  37.  
  38.     // the config dialog container
  39.     let cfg = document.createElement('div');
  40.     cfg.id = 'cmtFmtDialog';
  41.  
  42.     // adding the jQuery stylesheet to style the dialog, and fixing the interferance of AO3's styling
  43.     $("head").append(`<link rel="stylesheet" href="https://code.jquery.com/ui/1.13.2/themes/${dialogtheme}/jquery-ui.css">`)
  44.     .prepend(`<script src="https://use.fontawesome.com/ed555db3cc.js" />`)
  45.     .append(`<style tyle="text/css">#${cfg.id}, .ui-dialog .ui-dialog-buttonpane button {font-size: revert; line-height: 1.286;}
  46.     #${cfg.id} form {box-shadow: revert; cursor:auto;}
  47.     #${cfg.id} #custombutton a {cursor:pointer;}
  48.     #${cfg.id} legend {font-size: inherit; height: auto; width: auto; opacity: inherit;}
  49.     #${cfg.id} fieldset {background: revert; box-shadow: revert;}
  50.     #${cfg.id} input[type='text'] { position: relative; top: 1px; padding: .4em; width: 3em; }
  51.     #${cfg.id} ul { padding-left: 2em; }
  52.     #${cfg.id} ul li { list-style: circle; }
  53.     #${cfg.id} #stdbutton label { font-family: FontAwesome, sans-serif; }
  54.     #${cfg.id} #custombutton div button { width: 0.5em; }
  55.     #${cfg.id} #custombutton div input:nth-of-type(1) { width: 2em; }
  56.     #${cfg.id} #custombutton div input:nth-of-type(2) { width: 6em; }
  57.     #${cfg.id} #custombutton div input:nth-of-type(3) { width: 10em; }
  58.     #${cfg.id} #custombutton div input:nth-of-type(4) { width: 10em; }
  59.     </style>`);
  60.  
  61.     // the available standard buttons, display & insert stuff
  62.     let config_std = new Map([
  63.         ["bold", { icon: "&#xf032;", text: "Bold", ins_pre: "<b>", ins_app: "</b>" }],
  64.         ["italic", { icon: "&#xf033;", text: "Italic", ins_pre: "<em>", ins_app: "</em>" }],
  65.         ["underline", { icon: "&#xf0cd;", text: "Underline", ins_pre: "<u>", ins_app: "</u>" }],
  66.         ["strike", { icon: "&#xf0cc;", text: "Strikethrough", ins_pre: "<s>", ins_app: "</s>" }],
  67.         ["link", { icon: "&#xf0c1;", text: "Link", ins_pre: "<a href=\"\">", ins_app: "</a>" }],
  68.         ["image", { icon: "&#xf03e;", text: "Image", ins_pre: "<img src=\"", ins_app: "\" />" }],
  69.         ["quote", { icon: "&#xf10d;", text: "Quote", ins_pre: "<blockquote>", ins_app: "</blockquote>" }],
  70.         ["paragraph", { icon: "&#xf1dd;", text: "Paragraph", ins_pre: "<p>", ins_app: "</p>" }],
  71.         ["listnum", { icon: "&#xf0cb;", text: "Numbered List", ins_pre: "<ol><li>", ins_app: "</li></ol>" }],
  72.         ["listbull", { icon: "&#xf0ca;", text: "Bullet List", ins_pre: "<ul><li>", ins_app: "</li></ul>" }],
  73.         ["listitem", { icon: "&#xf192;", text: "List Item", ins_pre: "<li>", ins_app: "</li>" }],
  74.     ]);
  75.  
  76.     // build GUI for chosen enable/disable of standard buttons
  77.     let standardbuttons = '';
  78.     config_std.forEach((val, key) => {
  79.         standardbuttons += `<label for="${key}" title="${val.text}">${val.icon}</label><input type="checkbox" name="${key}" id="${key}" ${(standardmap.get(key)==="true" || standardmap.size == 0) ? 'checked="checked"' : ""}>`;
  80.     });
  81.  
  82.     // reformat the stored custom buttons to match the standard
  83.     let config_custom = new Map();
  84.     custommap.forEach((val, key) => {
  85.         val = JSON.parse(val); // turn the string into an array of 4x2 each
  86.         let newval = {}; // turn the array into an object
  87.         val.forEach((v) => {
  88.             newval[v[0]] = v[1];
  89.         });
  90.         config_custom.set(key, newval);
  91.     });
  92.  
  93.     // build GUI for stored custom buttons
  94.     let custombuttons = '';
  95.     config_custom.forEach((val) => {
  96.         custombuttons += `<div><button class="remove">-</button><input type="text" name="icon" value="${val.icon}"><input type="text" name="text" value="${val.text}">
  97.         <input type="text" name="ins_pre" value="${val.ins_pre}"><input type="text" name="ins_app" value="${val.ins_app}"></div>`;
  98.     });
  99.  
  100.     // template for a blank row to add a custom button (is cloned before inserting into DOM)
  101.     let newcustombutton = `<div><button class="remove">-</button><input type="text" name="icon" value="Icon"><input type="text" name="text" value="Title">
  102.         <input type="text" name="ins_pre" value="Insert Before"><input type="text" name="ins_app" value="Insert After"></div>`;
  103.  
  104.     $(cfg).html(`<form>
  105.     <fieldset id='stdbutton'>
  106.         <legend>Standard text formatting</legend>
  107.         <p>Select the buttons you'd like to see as options on the button bar.</p>
  108.         ${standardbuttons}
  109.     </fieldset>
  110.     <fieldset id='custombutton'>
  111.         <legend>Custom HTML or text</legend>
  112.         <p>Define custom buttons, which will insert HTML and/or text.</p>
  113.         <ul><li>In the first field, choose <a href="https://fontawesome.com/v4/icons/">the Icon</a> you want on the button.<br />
  114.         Copy its 4-letter Unicode (for example "f004" for the heart) into this field.</li>
  115.         <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>
  116.         <li>Put the text you want inserted around the cursor position into the Insert Before and Insert After fields.</li></ul>
  117.         ${custombuttons}
  118.         <div><button class="add">+</button></div>
  119.     </fieldset>
  120.     <p>Any changes only apply after reloading the page.</p>
  121.     </form>`);
  122.  
  123.     // attach it to the DOM so that selections work (but only if #main exists, else it might be a Retry Later error page)
  124.     if ($("#main").length == 1) $("body").append(cfg);
  125.  
  126.     // turn checkboxes and radiobuttons into pretty buttons
  127.     $( "#cmtFmtDialog input[type='checkbox'], #cmtFmtDialog input[type='radio']" ).checkboxradio({ icon: false });
  128.  
  129.     // optimizing the size of the GUI in case it's a mobile device
  130.     let dialogwidth = parseInt($("body").css("width")); // parseInt ignores letters (px)
  131.     dialogwidth = dialogwidth > 550 ? 550 : dialogwidth * 0.9;
  132.  
  133.     // initialize the dialog (but don't open it)
  134.     $( "#cmtFmtDialog" ).dialog({
  135.         appendTo: "#main",
  136.         modal: true,
  137.         title: 'Comment Formatting Buttons',
  138.         draggable: true,
  139.         resizable: false,
  140.         autoOpen: false,
  141.         width: dialogwidth,
  142.         position: {my:"center", at: "center top"},
  143.         buttons: {
  144.             Reset: deleteConfig,
  145.             Save: storeConfig,
  146.             Cancel: function() { $( "#cmtFmtDialog" ).dialog( "close" ); }
  147.         }
  148.     });
  149.  
  150.     // event triggers if form is submitted with the <enter> key
  151.     $( "#cmtFmtDialog form" ).on("submit", (e) => {
  152.         e.preventDefault();
  153.         storeConfig();
  154.     });
  155.  
  156.     // putting event triggers on buttons that will delete custom rows
  157.     function evRemoveRow(el) {
  158.         $(el).on("click", (e) => {
  159.             e.cancelBubble = true;
  160.             e.preventDefault();
  161.             $(e.target).parent().remove(); // delete whole div
  162.         });
  163.     }
  164.     // run it immediately on the stored custom buttons
  165.     evRemoveRow($( "#cmtFmtDialog button.remove" ));
  166.  
  167.     // putting event trigger on button that will add blank custom rows
  168.     $( "#cmtFmtDialog button.add" ).on("click", (e) => {
  169.         e.cancelBubble = true;
  170.         e.preventDefault();
  171.         // add a new blank row and attach the remove event again
  172.         $(e.target).parent().before( $(newcustombutton).clone() );
  173.         evRemoveRow($( "#cmtFmtDialog button.remove:last-of-type" ));
  174.     });
  175.  
  176.     function deleteConfig() {
  177.         // deselects all buttons, empties all fields in the form
  178.         $('#cmtFmtDialog form').trigger("reset");
  179.         $('#cmtFmtDialog button.remove').trigger("click");
  180.  
  181.         // deletes the localStorage
  182.         localStorage.removeItem('cmtfmtstandard');
  183.         localStorage.removeItem('cmtfmtcustom');
  184.  
  185.         $( "#cmtFmtDialog" ).dialog( "close" );
  186.     }
  187.  
  188.     function storeConfig() {
  189.         // build a Map() for enabled standard buttons => button -> true/false
  190.         let storestd = new Map();
  191.         $( "#cmtFmtDialog #stdbutton [name]" ).each(function() { storestd.set( $(this).prop('name'), String($(this).prop('checked')) ); });
  192.         localStorage.setItem('cmtfmtstandard', JSON.stringify(Array.from(storestd.entries())));
  193.  
  194.         // build a Map() for the custom buttons => custom# -> { icon: X, text: X, ins_pre: X, ins_app: X }
  195.         let storecustom = new Map();
  196.         $( "#cmtFmtDialog #custombutton div:has(input)" ).each((i, div) => {
  197.             let parts = new Map();
  198.             $(div).find('[name]').each(function() { parts.set( $(this).prop('name'), $(this).prop('value') ); });
  199.             storecustom.set('custom'+i, JSON.stringify(Array.from(parts.entries())));
  200.         });
  201.         localStorage.setItem('cmtfmtcustom', JSON.stringify(Array.from(storecustom.entries())));
  202.  
  203.         $( "#cmtFmtDialog" ).dialog( "close" );
  204.     }
  205.  
  206.     /* CREATING THE LINK TO OPEN THE CONFIGURATION DIALOG */
  207.  
  208.     // if no other script has created it yet, write out a "Userscripts" option to the main navigation
  209.     if ($('#scriptconfig').length == 0) {
  210.         $('#header ul.primary.navigation li.dropdown').last()
  211.             .after(`<li class="dropdown" id="scriptconfig">
  212.                 <a class="dropdown-toggle" href="/" data-toggle="dropdown" data-target="#">Userscripts</a>
  213.                 <ul class="menu dropdown-menu"></ul></li>`);
  214.     }
  215.     // then add this script's config option to navigation dropdown
  216.     $('#scriptconfig .dropdown-menu').append(`<li><a href="javascript:void(0);" id="opencfg_cmtfmt">Comment Formatting Buttons</a></li>`);
  217.  
  218.     // on click, open the configuration dialog
  219.     $("#opencfg_cmtfmt").on("click", function(e) {
  220.         $( "#cmtFmtDialog" ).dialog('open');
  221.     });
  222.  
  223.     /*********************************************************
  224.      COMMENT BAR AND PREVIEW FUNCTIONALITY
  225.      *********************************************************/
  226.  
  227.     // merge the enabled standard and custom buttons into one list
  228.     let config = new Map();
  229.     config_std.forEach((val, key) => { if (standardmap.get(key)==="true" || standardmap.size == 0) config.set(key, val); });
  230.     config_custom.forEach((val, key) => {
  231.         if (val.icon !== "") val.icon = `&#x${val.icon};`; // add what Font Awesome needs to display properly
  232.         config.set(key, val);
  233.     });
  234.  
  235.     $("head").append(`<style type="text/css"> ul.comment-format { font-family: FontAwesome, sans-serif; float: left; }
  236.         ul.comment-format a { cursor: default; }
  237.         ul.comment-format .fontawe { font-family: FontAwesome, sans-serif; }
  238.         div.comment-preview.userstuff { border: 1px inset #f0f0f0; min-height: 1em; padding: 0.2em 1em; line-height: 1.5; } </style>`);
  239.  
  240.     // collate the button bar
  241.     let buttonBar = document.createElement('ul');
  242.     $(buttonBar).addClass('actions comment-format');
  243.     for (let c of config) {
  244.         let li = document.createElement('li');
  245.         li.title = c[1].text;
  246.         li.innerHTML = `<a class="${c[0]}">${ (c[1].icon === "") ? c[1].text : c[1].icon}</a>`;
  247.         if (c[1].icon !== "") $(li).addClass("fontawe");
  248.         $(buttonBar).append(li);
  249.     }
  250.     $(buttonBar).find('a').on('click', function(e) {
  251.         e.cancelBubble = true;
  252.         e.preventDefault();
  253.         insert_format(e.target);
  254.     });
  255.  
  256.     // preview box template (will be cloned when inserting into DOM)
  257.     let preview = `<div class='comment-preview userstuff' title='Comment Preview (approximate)'></div>`;
  258.  
  259.     // click event function called with the button <a> that was clicked (so we know which textarea to insert it to)
  260.     function insert_format(elm) {
  261.         let area = $(elm).parent().parent().next('textarea')[0]; // the textarea element we're dealing with
  262.         let text = $(area).val(); // the original content of the comment box
  263.         let cursor_start = area.selectionStart, cursor_end = area.selectionEnd; // any highlighted text
  264.         let fmt = config.get(elm.className); // grab the formatting HTML corresponding to the clicked button
  265.  
  266.         // set the comment box text with the new content, and focus back on it
  267.         $(area).val(
  268.             text.slice(0, cursor_start) + // text from before cursor position or highlight
  269.             fmt.ins_pre + text.slice(cursor_start, cursor_end) + fmt.ins_app + // wrap any highlighted text in the formatting HTML
  270.             text.slice(cursor_end) // text from after cursor position or highlight
  271.         ).focus();
  272.  
  273.         // set the cursor position to the same value so we don't highlight anymore
  274.         let cursor_new =
  275.             // if we only inserted format HTML, set it between the halves so you can enter the text to format
  276.             (cursor_start == cursor_end) ? cursor_start + fmt.ins_pre.length :
  277.             // if we highlighted, and this is a link (so the link text is already done), set the cursor into the href=""
  278.             (elm.className == "link") ? cursor_start + fmt.ins_pre.length - 2 :
  279.             // otherwise always set it at the end of the inserted text i.e. the same distance from the end as originally
  280.             $(area).val().length - (text.length - cursor_end);
  281.         area.selectionStart = area.selectionEnd = cursor_new;
  282.  
  283.         // manually trigger the value-has-changed event so the preview updates (not calling update_preview directly as it would fail on Sticky Comment Box)
  284.         $(area).trigger('input');
  285.     }
  286.  
  287.     // function called when anything changes (input event trigger) in the textarea
  288.     function update_preview(elm) {
  289.         let prevbox = $(elm).siblings('div.comment-preview')[0];
  290.         prevbox.innerHTML = parse_preview($(elm).val());
  291.     }
  292.  
  293.     // adding the button bar & preview box for any visible comment area (clone with events!)
  294.     $('textarea[id^="comment_content_for"]')
  295.         .before($(buttonBar).clone(true, true))
  296.         .after($(preview).clone())
  297.         .on('input', function(e) { update_preview(e.target); })
  298.         .each(function() { update_preview(this); }); // update the preview for reloaded pages with cached comment text
  299.  
  300.     // Support for Sticky Comment Box!
  301.     // if this script executes first, we may have to wait for the Sticky Comment Box to appear in the DOM
  302.     if ($('#float_cmt_dlg').length == 0) {
  303.         const observer = new MutationObserver(function(mutList, obs) {
  304.             for (const mut of mutList) { for (const node of mut.addedNodes) {
  305.                 // check if the added node is our comment box
  306.                 if (node.id == 'float_cmt_dlg') {
  307.                     obs.disconnect(); // stop listening immediately, we have what we needed
  308.                     // add the buttonbar to the Sticky Comment Box (it doesn't get a preview field to save space)
  309.                     $('#float_cmt_userinput textarea').before($(buttonBar).clone(true, true).css('font-size', '80%'));
  310.                 }
  311.             }}
  312.         });
  313.  
  314.         // listening to as few changes as possible: only direct children of <body>
  315.         observer.observe($('body').get(0), { attributes: false, childList: true, subtree: false });
  316.  
  317.         // failsafe: stop listening after 5 seconds (in case the other script isn't running)
  318.         // this will always execute even if the box was already found and the observer disconnected previously
  319.         let timeout = setTimeout(() => {
  320.             observer.disconnect();
  321.         }, 5 * 1000);
  322.     }
  323.     // when the Sticky Comment Box script executed first and the textarea is already there, we immediately add the button bar
  324.     else $('#float_cmt_userinput textarea').before($(buttonBar).clone(true, true).css('font-size', '80%'));
  325.  
  326.     // adding the bar for any loaded comment areas
  327.     // global AJAX listener but we're only interested in the calls that add the comment reply box
  328.     XMLHttpRequest.prototype.getResponseHeader = function() { // jQuery ajaxSuccess method doesn't catch the reply pages
  329.         if (!(this.readyState == 4 && this.status == 200)) return true;
  330.         var xhrurl = this.responseURL;
  331.         var params = (new URL(xhrurl)).searchParams;
  332.  
  333.         // When replying to comments (on work or tag page)
  334.         if (xhrurl.indexOf("comments/add_comment_reply?") !== -1) {
  335.             $('textarea#comment_content_for_'+params.get("id"))
  336.                 .before($(buttonBar).clone(true, true))
  337.                 .after($(preview).clone())
  338.                 .on('input', function(e) { update_preview(e.target); });
  339.         }
  340.  
  341.         // When replying to inbox comments (floating box)
  342. 		else if (xhrurl.indexOf("inbox/reply?") !== -1) {
  343.             $('textarea#comment_content_for_'+params.get("comment_id"))
  344.                 .before($(buttonBar).clone(true, true))
  345.                 .after($(preview).clone())
  346.                 .on('input', function(e) { update_preview(e.target); });
  347. 		}
  348.  
  349.         // When editing a comment
  350. 		else if (xhrurl.indexOf("/comments/") !== -1 && xhrurl.indexOf("/edit") !== -1) {
  351.             let commentid = xhrurl.match(/\d+/);
  352.             $('li#comment_'+commentid[0]+' textarea[id^=comment_content_for_]')
  353.                 .before($(buttonBar).clone(true, true))
  354.                 .after($(preview).clone())
  355.                 .on('input', function(e) { update_preview(e.target); })
  356.                 .each(function() { update_preview(this); }); // update the preview with the existing comment text
  357. 		}
  358.     };
  359.  
  360.     function parse_preview(content) {
  361.         // if the comment box is still empty, show a simple placeholder
  362.         if (content == "") return "<p><i>preview</i></p>";
  363.  
  364.         // if there is comment text, turn double linebreaks into paragraphs and single linebreaks into <br>
  365.         // linebreak compatibility
  366.         const lbr = (content.indexOf("\r\n") > -1) ? "\r\n" :
  367.                     (content.indexOf("\r") > -1) ? "\r" : "\n";
  368.  
  369.         // remove obvious issues: whitespaces between <li>'s, a <br> plus linebreak (while editing)
  370.         content = content.replace(/<\/li>\W+<li>/ig, '</li><li>');
  371.         content = content.replace(/<br \/>(\r\n|\r|\n)/ig, '<br />');
  372.  
  373.         content = content.split(`${lbr}${lbr}`); // split content at each two linebreaks in a row
  374.         const regexLine = new RegExp(`${lbr}`, "g");
  375.         content.forEach((v, i) => {
  376.             v = v.replace(regexLine, "<br />"); // a single linebreak is replaced by a <br>
  377.             content[i] = "<p>"+v.trim()+"</p>"; // two linebreaks are wrapped in a <p>
  378.         });
  379.         return content.join(lbr);
  380.     }
  381.  
  382. })(jQuery);
  383.  
  384. // helper function to determine whether a color (the background in use) is light or dark
  385. // https://awik.io/determine-color-bright-dark-using-javascript/
  386. function lightOrDark(color) {
  387.     var r, g, b, hsp;
  388.     if (color.match(/^rgb/)) { color = color.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(?:,\s*(\d+(?:\.\d+)?))?\)$/);
  389.         r = color[1]; g = color[2]; b = color[3]; }
  390.     else { color = +("0x" + color.slice(1).replace(color.length < 5 && /./g, '$&$&'));
  391.         r = color >> 16; g = color >> 8 & 255; b = color & 255; }
  392.     hsp = Math.sqrt( 0.299 * (r * r) + 0.587 * (g * g) + 0.114 * (b * b) );
  393.     if (hsp>127.5) { return 'light'; } else { return 'dark'; }
  394. }