Searches through FetLife group discussions for a specific keyword or phrase.
/**
*
* This is a Greasemonkey script and must be run using a Greasemonkey-compatible browser.
*
* @author maymay <bitetheappleback@gmail.com>
*/
// ==UserScript==
// @name FetLife Text Search
// @version 0.1.1
// @namespace com.maybemaimed.fetlife.textsearch
// @description Searches through FetLife group discussions for a specific keyword or phrase.
// @include https://fetlife.com/groups*
// @exclude https://fetlife.com/adgear/*
// @exclude https://fetlife.com/chat/*
// @exclude https://fetlife.com/im_sessions*
// @exclude https://fetlife.com/polling/*
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// @grant GM_log
// ==/UserScript==
FL_TXT = {};
FL_TXT.CONFIG = {
'debug': false, // switch to true to debug.
};
// Utility debugging function.
FL_TXT.log = function (msg) {
if (!FL_TXT.CONFIG.debug) { return; }
GM_log('FETLIFE TEXT SEARCH: ' + msg);
};
// Initializations.
var uw = (unsafeWindow) ? unsafeWindow : window ; // Help with Chrome compatibility?
GM_addStyle('\
#tabnav li:last-child { position: relative; }\
#tabnav li:last-child div {\
opacity: .95;\
display: none;\
position: absolute;\
background: gray;\
width: 930px;\
min-height: 125px;\
padding: 3px 10px;\
}\
#tabnav li:last-child input[type="text"] { width: 100%; }\
#tabnav #fetlife_text_search_results li {\
opacity: 1;\
display: list-item;\
margin: 1em 0;\
clear: left;\
}\
#tabnav #fetlife_text_search_results .avatar { float: left; }\
#tabnav #fetlife_text_search_results .permalink {\
font-weight: normal;\
background-color: transparent;\
padding: 0;\
border: none;\
color: black;\
line-height: 1.3em;\
}\
.comment::target { border: 1px solid red; }\
');
FL_TXT.init = function () {
FL_TXT.currentSearch = {};
FL_TXT.CONFIG.search_form = document.getElementById('tabnav');
FL_TXT.main();
};
window.addEventListener('DOMContentLoaded', FL_TXT.init);
FL_TXT.getPageFromURL = function (url) {
FL_TXT.log('Getting page from URL: ' + url);
GM_xmlhttpRequest({
'method': 'GET',
'url': url,
'onload': function (response) {
// Parse page now to find pagination, in a moment.
var parser = new DOMParser();
var doc = parser.parseFromString(response.responseText, 'text/html');
// Set up next request.
my_page = (url.match(/\?page=\d+$/)) ? parseInt(url.match(/\d+$/)[0]) : 1 ;
next_page = my_page + 1;
if (next_page > 2) {
next_url = url.replace(/\d+$/, next_page.toString());
} else {
next_url = url + '?page=' + next_page.toString();
}
// If this was a discussion listing page
if (!url.match(/group_posts/)) {
// Make a list of links to each thread, and recurse on those.
var as = doc.querySelectorAll('#discussions h4 a');
for (var i = 0; i < as.length; i++) {
FL_TXT.getPageFromURL(as[i].href);
}
// Check for pagination on discussion lists, follow if necessary.
if (FL_TXT.isPaginated(doc)) {
FL_TXT.getPageFromURL(next_url);
}
return;
}
// Search group post content, too, if on first page.
if (my_page === 1 && (-1 !== doc.querySelector('.group_post').textContent.toLowerCase().search(FL_TXT.currentSearch.search_string.toLowerCase()))) {
FL_TXT.displayResult(doc.querySelector('.group_post'), doc.querySelector('.group_post').textContent.toLowerCase().search(FL_TXT.currentSearch.search_string.toLowerCase()), url);
}
var els = doc.querySelectorAll('.comment');
result_count = 0;
for (var i = 0; i < els.length; i++) {
// Parse results for this page and make note of any search string hits.
var x = els[i].textContent.toLowerCase().search(FL_TXT.currentSearch.search_string.toLowerCase());
if (-1 !== x) {
FL_TXT.displayResult(els[i], x, url);
}
result_count++;
}
// Check for pagination of group thread itself, follow.
if (FL_TXT.isPaginated(doc)) {
FL_TXT.getPageFromURL(next_url);
}
}
});
};
FL_TXT.isPaginated = function (doc) {
if (!doc.querySelector('.pagination')) {
return false;
} else if (!doc.querySelector('.pagination .next_page.disabled')) {
return true;
} else {
return false;
}
};
FL_TXT.toggleSearchInterface = function (e) {
var lis = e.target.parentNode.parentNode.children;
for (var i = 0; i < lis.length; i++) {
lis[i].className = lis[i].className.replace('in_section', '');
}
e.target.parentNode.className = "in_section";
e.target.nextSibling.style.display = 'block';
};
FL_TXT.getGroupName = function () {
return document.querySelector('.group_name a').innerHTML;
};
FL_TXT.doTextSearch = function (e) {
e.preventDefault();
var group_id = document.getElementById('fetlife_text_search_group_id').value;
var search_string = document.getElementById('fetlife_text_search').value;
FL_TXT.currentSearch.search_string = search_string;
switch (e.explicitOriginalTarget.value) {
case 'Search all discussions.':
FL_TXT.searchGroup(search_string, group_id);
break;
case 'Search this thread.':
default:
var group_post_id = document.getElementById('fetlife_text_search_group_post_id').value;
FL_TXT.searchGroup(search_string, group_id, group_post_id);
break;
};
};
FL_TXT.searchGroup = function (str, group_id, group_post_id) {
var url = 'https://fetlife.com/groups/' + group_id;
if (group_post_id) {
url += '/group_posts/' + group_post_id;
}
FL_TXT.getPageFromURL(url);
};
FL_TXT.displayResult = function (el, pos, url) {
var ul = document.getElementById('fetlife_text_search_results');
var li = document.createElement('li');
var icon = el.querySelector('.avatar');
var nick = el.querySelector('.nickname');
var permalink = url;
if (el.getAttribute('id')) {
url += '#' + el.getAttribute('id');
}
var start = (100 > pos) ? 0 : pos - 100;
var end = pos + 100;
var html_string = '<a href="' + permalink + '" class="permalink">' + icon.innerHTML + ': ' + el.textContent.substring(start, end) + '</a>';
li.innerHTML = html_string;
ul.appendChild(li);
};
// This is the main() function, executed on page load.
FL_TXT.main = function () {
// Get relevant object IDs.
var group_id, group_post_id;
var m = window.location.href.match(/https:\/\/fetlife\.com\/groups\/(\d+)(\/group_posts\/(\d+))?/);
if (!m) {
FL_TXT.log('Failed to find FetLife Group ID or group post ID in ' + window.location.href);
return false;
} else {
group_id = m[1];
group_post_id = m[3];
}
// Insert FetLife Text Search button interface.
var li = document.createElement('li');
li.setAttribute('id', 'tab-text-search');
var a = document.createElement('a');
a.setAttribute('href', '#');
a.addEventListener('click', FL_TXT.toggleSearchInterface);
a.innerHTML = 'Search ' + this.getGroupName();
li.appendChild(a);
var div = document.createElement('div');
var form = document.createElement('form');
form.setAttribute('action', window.location.href)
form.setAttribute('method', 'GET');
form.addEventListener('submit', FL_TXT.doTextSearch);
var html_string = '<input type="hidden" id="fetlife_text_search_group_id" name="fetlife_text_search_group_id" value="' + group_id + '" />';
html_string += '<label><input type="text" id="fetlife_text_search" name="fetlife_text_search" value="" placeholder="Search for…"/></label>';
html_string += '<input type="submit" name="fetlife_text_search_discussions" value="Search all discussions." />';
// If this is a specific discussion, offer to search only within that discussion thread.
if (group_post_id) {
html_string += '<input type="submit" name="fetlife_text_search_this_thread" value="Search this thread." />';
html_string += '<input type="hidden" id="fetlife_text_search_group_post_id" name="fetlife_text_search_group_post_id" value="' + group_post_id + '" />';
}
form.innerHTML = html_string;
div.appendChild(form);
li.appendChild(div);
document.getElementById('tabnav').appendChild(li);
var ul = document.createElement('ul');
ul.setAttribute('id', 'fetlife_text_search_results');
div.appendChild(ul);
};
// The following is required for Chrome compatibility, as we need "text/html" parsing.
/*
* DOMParser HTML extension
* 2012-09-04
*
* By Eli Grey, http://eligrey.com
* Public domain.
* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
*/
/*! @source https://gist.github.com/1129031 */
/*global document, DOMParser*/
(function(DOMParser) {
"use strict";
var
DOMParser_proto = DOMParser.prototype
, real_parseFromString = DOMParser_proto.parseFromString
;
// Firefox/Opera/IE throw errors on unsupported types
try {
// WebKit returns null on unsupported types
if ((new DOMParser).parseFromString("", "text/html")) {
// text/html parsing is natively supported
return;
}
} catch (ex) {}
DOMParser_proto.parseFromString = function(markup, type) {
if (/^\s*text\/html\s*(?:;|$)/i.test(type)) {
var
doc = document.implementation.createHTMLDocument("")
;
doc.body.innerHTML = markup;
return doc;
} else {
return real_parseFromString.apply(this, arguments);
}
};
}(DOMParser));