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vichan/js/no-animated-gif.js

95 lines
2.8 KiB
JavaScript

/*
* no-animated-gif.js - Toggle GIF animated thumbnails when gifsicle is enabled
*
* Copyright (c) 2014 Fredrick Brennan <admin@8chan.co>
* Copyright (c) 2014 Marcin Łabanowski <marcin@6irc.net>
*
* Usage:
* $config['additional_javascript'][] = 'js/jquery.min.js';
* //$config['additional_javascript'][] = 'js/options.js';
* //$config['additional_javascript'][] = 'js/style-select.js';
* //$config['additional_javascript'][] = 'js/options/general.js';
* $config['additional_javascript'][] = 'js/no-animated-gif.js';
*/
function unanimate_gif(e) {
if ($(e).closest('.thread').children('.thread-hidden').length > 0) return;
if (active_page === "catalog")
var c = $('<canvas class="thread-image"></canvas>');
else
var c = $('<canvas class="post-image"></canvas>');
$(e).parent().prepend(c);
c.attr('width', $(e).width());
c.attr('height',$(e).height());
function draw_image() {
c[0].getContext('2d').drawImage(e, 0, 0, $(e).width(), $(e).height())
};
// Fix drawing image before loaded. Note that Chrome needs to check .complete because load() is NOT called if loaded from cache.
if (!e.complete) {
e.onload = draw_image;
} else {
draw_image();
}
$(e).addClass("unanimated").hide();
}
$(function(){
var gif_finder = 'img.post-image[src$=".gif"], img.thread-image[src$=".gif"]';
function no_animated_gif() {
var anim_gifs = $(gif_finder);
localStorage.no_animated_gif = true;
$('#no-animated-gif>a').text(_('Animate GIFs'));
$('#no-animated-gif>input').prop('checked', true);
$.each(anim_gifs, function(i, e) {unanimate_gif(e)} );
$(document).on('new_post', new_post_handler);
}
function animated_gif() {
$('canvas.post-image').remove();
$('img.post-image').removeClass("unanimated").show();
localStorage.no_animated_gif = false;
$('#no-animated-gif>a').text(_('Unanimate GIFs'));
$('#no-animated-gif>input').prop('checked', false);
$(document).off('new_post', new_post_handler);
}
function new_post_handler(e, post) {
$(post).find(gif_finder).each(function(k, v) {
unanimate_gif(v);
});
}
if (active_page == 'thread' || active_page == 'index' || active_page == 'ukko' || active_page == 'catalog') {
var selector, event;
if (window.Options && Options.get_tab('general')) {
selector = '#no-animated-gif>input';
event = 'change';
Options.extend_tab("general", "<label id='no-animated-gif'><input type='checkbox' />"+_('Unanimate GIFs')+"</label>");
}
else {
selector = '#no-animated-gif';
event = 'click';
$('hr:first').before('<div id="no-animated-gif" style="text-align:right"><a class="unimportant" href="javascript:void(0)">'+_('Unanimate GIFs')+'</a></div>')
}
$(selector).on(event, function() {
if (localStorage.no_animated_gif === 'true') {
animated_gif();
} else {
no_animated_gif();
}
});
if (localStorage.no_animated_gif === 'true')
no_animated_gif();
}
});