mirror of
https://github.com/vichan-devel/vichan.git
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200 lines
6.5 KiB
JavaScript
200 lines
6.5 KiB
JavaScript
// Thanks to Khorne on #8chan at irc.rizon.net
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// https://gitlab.com/aymous/8chan-watchlist
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'use strict';
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/* jshint globalstrict:true, quotmark:single */
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/* jshint browser:true, jquery:true, devel:true, unused:true, undef:true */
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/* global active_page:false, board_name:false */
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if(!localStorage.watchlist){
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//If the watchlist is undefined in the localStorage,
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//initialize it as an empty array.
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localStorage.watchlist = '[]';
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}
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var watchlist = {};
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/**
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* [render /> Creates a watchlist container and populates it with info
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* about each thread that's currently being watched. If the watchlist container
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* already exists, it empties it out and repopulates it.]
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* @param {[Bool]} reset [If true and the watchlist is rendered, remove it]
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*/
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watchlist.render = function(reset) {
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/* jshint eqnull:true */
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if (reset == null) reset = false;
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/* jshint eqnull:false */
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if (reset && $('#watchlist').length) $('#watchlist').remove();
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var threads = [];
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//Read the watchlist and create a new container for each thread.
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JSON.parse(localStorage.watchlist).forEach(function(e, i) {
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//look at line 69, that's what (e) is here.
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threads.push('<div class="watchlist-inner" id="watchlist-'+i+'">' +
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'<span>/'+e[0]+'/ - ' +
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'<a href="'+e[3]+'">'+e[1].replace("thread_", _("Thread #"))+'</a>' +
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' ('+e[2]+') </span>' +
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'<a class="watchlist-remove">X</a>'+
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'</div>');
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});
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if ($('#watchlist').length) {
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//If the watchlist is already there, empty it and append the threads.
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$('#watchlist').children('.watchlist-inner').remove();
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$('#watchlist').append(threads.join(''));
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} else {
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//If the watchlist has not yet been rendered, create it.
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var menuStyle = getComputedStyle($('.boardlist')[0]);
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$('form[name="post"]').before(
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$('<div id="watchlist">'+
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'<div class="watchlist-controls">'+
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'<span><a id="clearList">['+_('Clear List')+']</a></span> '+
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'<span><a id="clearGhosts">['+_('Clear Ghosts')+']</a></span>'+
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'</div>'+
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threads.join('')+
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'</div>').css("background-color", menuStyle.backgroundColor).css("border", menuStyle.borderBottomWidth+" "+menuStyle.borderBottomStyle+" "+menuStyle.borderBottomColor));
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}
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return this;
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};
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/**
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* [add /> adds the given item to the watchlist]
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* @param {[Obj/Str]} sel [An unwrapped jquery selector.]
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*/
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watchlist.add = function(sel) {
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var threadName, threadInfo;
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if (active_page === 'thread') {
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if ($('.subject').length){
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//If a subject is given, use the first 20 characters as the thread name.
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threadName = $('.subject').text().substring(0,20);
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} else { //Otherwise use the thread id.
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threadName = $('.op').parent().attr('id');
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}
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//board name, thread name as defined above, current amount of posts, thread url
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threadInfo = [board_name, threadName, $('.post').length, location.href];
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} else if (active_page === 'index') {
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var postCount;
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//Figure out the post count.
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if ($(sel).parents('.op').children('.omitted').length) {
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postCount = $(sel).parents('.op').children('.omitted').text().split(' ')[0];
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} else {
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postCount = $(sel).parents('.op').siblings('.post').length+1;
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}
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//Grab the reply link.;
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var threadLink = $(sel).siblings('a:not(.watchThread)').last().attr('href');
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//Figure out the thread name. If anon, use the thread id.
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if ($(sel).parent().find('.subject').length) {
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threadName = $(sel).parent().find('.subject').text().substring(0,20);
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} else {
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threadName = $(sel).parents('div').last().attr('id');
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}
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threadInfo = [board_name, threadName, postCount, threadLink];
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} else {
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alert('Functionality not yet implemented for this type of page.');
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return this;
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}
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//if the thread is already being watched, cancel the function.
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if (localStorage.watchlist.indexOf(JSON.stringify(threadInfo)) !== -1) {
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return this;
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}
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var _watchlist = JSON.parse(localStorage.watchlist); //Read the watchlist
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_watchlist.push(threadInfo); //Add the new watch item.
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localStorage.watchlist = JSON.stringify(_watchlist); //Save the watchlist.
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return this;
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};
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/**
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* [remove /> removes the given item from the watchlist]
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* @param {[Int]} n [The index at which to remove.]
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*/
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watchlist.remove = function(n) {
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var _watchlist = JSON.parse(localStorage.watchlist);
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_watchlist.splice(n, 1);
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localStorage.watchlist = JSON.stringify(_watchlist);
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return this;
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};
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/**
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* [clear /> resets the watchlist to the initial empty array]
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*/
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watchlist.clear = function() {
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localStorage.watchlist = '[]';
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return this;
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};
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/**
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* [exists /> pings every watched thread to check if it exists and removes it if not]
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* @param {[Obj/Str]} sel [an unwrapped jq selector]
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*/
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watchlist.exists = function(sel) {
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$.ajax($(sel).children().children('a').attr('href'), {
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type :'HEAD',
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error: function() {
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watchlist.remove(parseInt($(sel).attr('id').split('-')[1])).render();
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},
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success : function(){
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return;
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}
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});
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};
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$(document).ready(function(){
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if (!(active_page == 'thread' || active_page == 'index')) {
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return;
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}
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//Append the watchlist toggle button.
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$('.boardlist').append('<span>[ <a class="watchlist-toggle" href="#">'+_('watchlist')+'</a> ]</span>');
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//Append a watch thread button after every OP.
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$('.op>.intro').append('<a class="watchThread" href="#">['+_('Watch Thread')+']</a>');
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//Draw the watchlist, hidden.
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watchlist.render();
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//Show or hide the watchlist.
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$('.watchlist-toggle').on('click', function(e) {
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e.preventDefault();
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//if ctrl+click, reset the watchlist.
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if (e.ctrlKey) {
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watchlist.render(true);
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}
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if ($('#watchlist').css('display') !== 'none') {
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$('#watchlist').css('display', 'none');
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} else {
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$('#watchlist').css('display', 'block');
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} //Shit got really weird with hide/show. Went with css manip. Probably faster anyway.
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});
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//Trigger the watchlist add function.
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//The selector is passed as an argument in case the page is not a thread.
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$('.watchThread').on('click', function(e) {
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e.preventDefault();
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watchlist.add(this).render();
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});
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//The index is saved in .watchlist-inner so that it can be passed as the argument here.
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//$('.watchlist-remove').on('click') won't work in case of re-renders and
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//the page will need refreshing. This works around that.
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$(document).on('click', '.watchlist-remove', function() {
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var item = parseInt($(this).parent().attr('id').split('-')[1]);
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watchlist.remove(item).render();
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});
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//Empty the watchlist and redraw it.
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$('#clearList').on('click', function(){
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watchlist.clear().render();
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});
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//Get rid of every watched item that no longer directs to an existing page.
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$('#clearGhosts').on('click', function() {
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$('.watchlist-inner').each(function(){
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watchlist.exists(this);
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});
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});
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});
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