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c8cb173e27
scroll up to image if its top is out of view when shrunk. Requires jQuery
112 lines
3.5 KiB
JavaScript
112 lines
3.5 KiB
JavaScript
/*
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* inline-expanding.js
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* https://github.com/savetheinternet/Tinyboard/blob/master/js/inline-expanding.js
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*
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* Released under the MIT license
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* Copyright (c) 2012-2013 Michael Save <savetheinternet@tinyboard.org>
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* Copyright (c) 2013-2014 Marcin Łabanowski <marcin@6irc.net>
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*
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* Usage:
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* $config['additional_javascript'][] = 'js/jquery.min.js';
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* $config['additional_javascript'][] = 'js/inline-expanding.js';
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*
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*/
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onready(function(){
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var inline_expand_post = function() {
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var link = this.getElementsByTagName('a');
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for (var i = 0; i < link.length; i++) {
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if (typeof link[i] == "object" && link[i].childNodes && typeof link[i].childNodes[0] !== 'undefined' && link[i].childNodes[0].src && link[i].childNodes[0].className.match(/post-image/) && !link[i].className.match(/file/)) {
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link[i].onclick = function(e) {
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var img, post_body, still_open;
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var thumb = this.childNodes[0];
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var padding = 5;
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var boardlist = $('.boardlist')[0];
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var loadImage = function(img, thumb) {
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if (img.naturalWidth) {
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thumb.style.display = 'none';
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img.style.display = '';
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}
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else {
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return thumb.parentNode.timeout = setTimeout(loadImage, 30, img, thumb);
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}
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};
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if (thumb.className == 'hidden')
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return false;
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if (e.which == 2 || e.ctrlKey) //open in new tab
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return true;
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if (!this.dataset.expanded) {
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this.parentNode.removeAttribute('style');
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this.dataset.expanded = 'true';
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if (thumb.tagName === 'CANVAS') {
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this.removeChild(thumb);
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thumb.style.display = 'block';
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}
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thumb.style.opacity = '0.4';
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thumb.style.filter = 'alpha(opacity=40)';
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img = document.createElement('img');
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img.className = 'full-image';
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img.setAttribute('src', this.href);
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img.setAttribute('alt', 'Fullsized image');
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img.style.display = 'none';
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this.appendChild(img);
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this.timeout = loadImage(img, thumb);
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} else {
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clearTimeout(this.timeout);
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//scroll to thumb if not triggered by 'shrink all image'
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if (e.target.className == 'full-image') {
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post_body = $(e.target).parentsUntil('form > div').last();
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still_open = post_body.find('.post-image').filter(function(){return $(this).parent().attr('data-expanded') == 'true'}).length;
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//deal with differnt boards' menu styles
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if ($(boardlist).css('position') == 'fixed')
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padding += boardlist.getBoundingClientRect().height;
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if (still_open > 1) {
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if (e.target.getBoundingClientRect().top - padding < 0)
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$('body').scrollTop($(e.target).parent().parent().offset().top - padding);
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} else {
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if (post_body[0].getBoundingClientRect().top - padding < 0)
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$('body').scrollTop(post_body.offset().top - padding);
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}
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}
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if (~this.parentNode.className.indexOf('multifile'))
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this.parentNode.style.width = (parseInt(this.dataset.width)+40)+'px';
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thumb.style.opacity = '';
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thumb.style.display = '';
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this.removeChild(thumb.nextSibling);
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delete this.dataset.expanded;
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delete thumb.style.filter;
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if (localStorage.no_animated_gif === 'true' && typeof unanimate_gif === 'function') {
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unanimate_gif(thumb);
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}
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}
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return false;
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};
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}
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}
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};
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if (window.jQuery) {
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$('div[id^="thread_"]').each(inline_expand_post);
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// allow to work with auto-reload.js, etc.
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$(document).on('new_post', function(e, post) {
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inline_expand_post.call(post);
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});
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} else {
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inline_expand_post.call(document);
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}
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});
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