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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';
*
*/
onready(function(){
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var dont_fetch_again = [];
init_hover = function() {
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var link = $(this);
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var id;
var matches;
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if (link.is('[data-thread]')) {
id = link.attr('data-thread');
}
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else if(matches = link.text().match(/^>>(?:>\/([^\/]+)\/)?(\d+)$/)) {
id = matches[2];
}
else {
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return;
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}
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var board = $(this);
while (board.data('board') === undefined) {
board = board.parent();
}
var threadid;
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if (link.is('[data-thread]')) threadid = 0;
else threadid = board.attr('id').replace("thread_", "");
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board = board.data('board');
var 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];
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var post = false;
var hovering = false;
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link.hover(function(e) {
hovering = true;
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var start_hover = 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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var newPost = post.clone();
newPost.find('>.reply, >br').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')
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.css('left', '0')
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.css('margin-left', '')
.addClass('reply').addClass('post')
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.appendTo(link.closest('div.post'))
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// shrink expanded images
newPost.find('div.file a[data-expanded="true"]').each(function() {
var thumb = $(this).data('src');
$(this).find('img.post-image').attr('src', thumb);
});
// Highlight references to the current post
if (link.hasClass('mentioned-'+id)) {
var postLinks = newPost.find('div.body a:not([rel="nofollow"])');
if (postLinks.length > 1) {
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var originalPost = link.closest('div.post').attr('id').replace("reply_", "").replace("inline_", "");
postLinks.each(function() {
if ($(this).text() == ">>"+originalPost) {
$(this).addClass('dashed-underline');
}
});
}
}
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var previewWidth = newPost.outerWidth(true);
var widthDiff = previewWidth - newPost.width();
var linkLeft = link.offset().left;
var left, top;
if (linkLeft < $(document).width() * 0.7) {
left = linkLeft + link.width();
if (left + previewWidth > $(window).width()) {
newPost.css('width', $(window).width() - left - widthDiff);
}
} else {
if (previewWidth > linkLeft) {
newPost.css('width', linkLeft - widthDiff);
previewWidth = linkLeft;
}
left = linkLeft - previewWidth;
}
newPost.css('left', left);
top = link.offset().top - 10;
var scrollTop = $(window).scrollTop();
if (link.is("[data-thread]")) {
scrollTop = 0;
top -= $(window).scrollTop();
}
if(top < scrollTop + 15) {
top = scrollTop;
} else if(top > scrollTop + $(window).height() - newPost.height() - 15) {
top = scrollTop + $(window).height() - newPost.height() - 15;
}
if (newPost.height() > $(window).height()) {
top = scrollTop;
}
newPost.css('top', top);
}
};
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post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
if(post.length > 0) {
start_hover($(this));
} else {
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var url = link.attr('href').replace(/#.*$/, '');
if($.inArray(url, dont_fetch_again) != -1) {
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return;
}
dont_fetch_again.push(url);
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$.ajax({
url: url,
context: document.body,
success: function(data) {
var mythreadid = $(data).find('div[id^="thread_"]').attr('id').replace("thread_", "");
if (mythreadid == threadid && parentboard == board) {
$(data).find('div.post.reply').each(function() {
if($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
$('[data-board="' + board + '"]#thread_' + threadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
}
});
}
else if ($('[data-board="' + board + '"]#thread_'+mythreadid).length > 0) {
$(data).find('div.post.reply').each(function() {
if($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
$('[data-board="' + board + '"]#thread_' + mythreadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
}
});
}
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) {
start_hover(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');
$('.post-hover').remove();
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});
};
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$('div.body a:not([rel="nofollow"])').each(init_hover);
// 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(init_hover);
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});
});