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vichan/js/post-hover.js

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JavaScript
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/*
* post-hover.js
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* https://github.com/savetheinternet/Tinyboard/blob/master/js/post-hover.js
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*
* Released under the MIT license
* Copyright (c) 2012 Michael Save <savetheinternet@tinyboard.org>
* Copyright (c) 2013-2014 Marcin Łabanowski <marcin@6irc.net>
* Copyright (c) 2013 Macil Tech <maciltech@gmail.com>
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*
* Usage:
* $config['additional_javascript'][] = 'js/jquery.min.js';
* $config['additional_javascript'][] = 'js/post-hover.js';
*
*/
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onReady(function() {
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let dontFetchAgain = [];
initHover = function() {
let link = $(this);
let id;
let matches;
if (link.is('[data-thread]')) {
id = link.attr('data-thread');
} else if (matches = link.text().match(/^>>(?:>\/([^\/]+)\/)?(\d+)$/)) {
id = matches[2];
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} else {
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return;
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}
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let board = $(this);
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while (board.data('board') === undefined) {
board = board.parent();
}
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let threadid;
if (link.is('[data-thread]')) {
threadid = 0;
} else {
threadid = board.attr('id').replace("thread_", "");
}
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board = board.data('board');
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let parentboard = board;
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if (link.is('[data-thread]')) {
parentboard = $('form[name="post"] input[name="board"]').val();
} else if (matches[1] !== undefined) {
board = matches[1];
}
let post = false;
let hovering = false;
let hoveredAt;
link.hover(function(e) {
hovering = true;
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hoveredAt = {'x': e.pageX, 'y': e.pageY};
let startHover = function(link) {
if (post.is(':visible') &&
post.offset().top >= $(window).scrollTop() &&
post.offset().top + post.height() <= $(window).scrollTop() + $(window).height()) {
// post is in view
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post.addClass('highlighted');
} else {
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let newPost = post.clone();
newPost.find('>.reply, >br').remove();
newPost.find('span.mentioned').remove();
newPost.find('a.post_anchor').remove();
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newPost
.attr('id', 'post-hover-' + id)
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.attr('data-board', board)
.addClass('post-hover')
.css('border-style', 'solid')
.css('box-shadow', '1px 1px 1px #999')
.css('display', 'block')
.css('position', 'absolute')
.css('font-style', 'normal')
.css('z-index', '100')
.addClass('reply').addClass('post')
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.insertAfter(link.parent())
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link.trigger('mousemove');
}
};
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post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
if (post.length > 0) {
startHover($(this));
} else {
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let url = link.attr('href').replace(/#.*$/, '');
if ($.inArray(url, dontFetchAgain) != -1) {
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return;
}
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dontFetchAgain.push(url);
$.ajax({
url: url,
context: document.body,
success: function(data) {
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let mythreadid = $(data).find('div[id^="thread_"]').attr('id').replace("thread_", "");
if (mythreadid == threadid && parentboard == board) {
$(data).find('div.post.reply').each(function() {
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if ($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
$('[data-board="' + board + '"]#thread_' + threadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
}
});
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} else if ($('[data-board="' + board + '"]#thread_' + mythreadid).length > 0) {
$(data).find('div.post.reply').each(function() {
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if ($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
$('[data-board="' + board + '"]#thread_' + mythreadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
}
});
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} else {
$(data).find('div[id^="thread_"]').hide().attr('data-cached', 'yes').prependTo('form[name="postcontrols"]');
}
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post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
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if (hovering && post.length > 0) {
startHover(link);
}
}
});
}
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}, function() {
hovering = false;
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if (!post) {
return;
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}
post.removeClass('highlighted');
if (post.hasClass('hidden') || post.data('cached') == 'yes') {
post.css('display', 'none');
}
$('.post-hover').remove();
}).mousemove(function(e) {
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if (!post) {
return;
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}
let hover = $('#post-hover-' + id + '[data-board="' + board + '"]');
if (hover.length == 0) {
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return;
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}
let scrollTop = $(window).scrollTop();
if (link.is("[data-thread]")) {
scrollTop = 0;
}
let epy = e.pageY;
if (link.is("[data-thread]")) {
epy -= $(window).scrollTop();
}
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let top = (epy ? epy : hoveredAt['y']) - 10;
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if (epy < scrollTop + 15) {
top = scrollTop;
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} else if (epy > scrollTop + $(window).height() - hover.height() - 15) {
top = scrollTop + $(window).height() - hover.height() - 15;
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}
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hover.css('left', (e.pageX ? e.pageX : hoveredAt['x'])).css('top', top);
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});
};
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$('div.body a:not([rel="nofollow"])').each(initHover);
// allow to work with auto-reload.js, etc.
$(document).on('new_post', function(e, post) {
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$(post).find('div.body a:not([rel="nofollow"])').each(initHover);
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});
});