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Adds language switching buttons to comic page
// ==UserScript==
// @name Batoto Language Fastswich
// @namespace http://bato.to/scripts
// @version 2-beta
// @description Adds language switching buttons to comic page
// @include http://*bato.to/comic/_/comics/*
// @grant none
// @copyright 2014+, Gendalph
// @licence MIT
// ==/UserScript==
//
// FIXME!
// ADD BUTTONS
// MAKE INTO USERSCRIPT
//
(function() {
"use strict";
if (document.cookie.match(/lang_option=[\w%]+/)) {
console.error('[Batoto Language Fastswich] This script works only if language filter is disabled');
return;
}
// list of supported languages
var languages = [".lang_English", ".lang_Spanish", ".lang_French", ".lang_German", ".lang_Portuguese",
".lang_Turkish",
".lang_Indonesian", ".lang_Greek", ".lang_Filipino", ".lang_Italian", ".lang_Polish", ".lang_Thai", ".lang_Malay",
".lang_Hungarian", ".lang_Romanian", ".lang_Arabic", ".lang_Hebrew", ".lang_Russian", ".lang_Vietnamese",
".lang_Dutch"
];
var langBtnCssClass = [
'.topic_buttons li > input[type="checkbox"] { display: none; }',
'div .flag-icon {',
' background-image: url("http://bato.to/images/all_flags.png");',
' width: 16px;',
' height: 12px;',
' display: inline-block;',
' margin-left: 3px;',
' vertical-align: middle;',
'}',
'.topic_buttons li > input[type="checkbox"]:checked + label div {',
' border-left: solid green 3px;',
' margin-left: 0px;',
'}',
'#btn_English + label > div { background-position: -284px -173px; }',
'#btn_Spanish + label > div { background-position: -4px -173px; }',
'#btn_French + label > div { background-position: -228px -173px; }',
'#btn_German + label > div { background-position: -284px -117px; }',
'#btn_Portuguese + label > div { background-position: -4px -453px; }',
'#btn_Turkish + label > div { background-position: -116px -537px; }',
'#btn_Indonesian + label > div { background-position: -256px -229px; }',
'#btn_Greek + label > div { background-position: -256px -201px; }',
'#btn_Filipino + label > div { background-position: -116px -425px; }',
'#btn_Italian + label > div { background-position: -172px -257px; }',
'#btn_Polish + label > div { background-position: -172px -425px; }',
'#btn_Thai + label > div { background-position: -228px -509px; }',
'#btn_Malay + label > div { background-position: -200px -369px; }',
'#btn_Hungarian + label > div { background-position: -228px -229px; }',
'#btn_Romanian + label > div { background-position: -144px -509px; }',
'#btn_Arabic + label > div { background-position: -200px -453px; }',
'#btn_Hebrew + label > div { background-position: -4px -257px; }',
'#btn_Russian + label > div { background-position: -144px -453px; }',
'#btn_Vietnamese + label > div { background-position: -256px -565px; }',
'#btn_Dutch + label > div { background-position: -200px -313px; }'
].join('\n');
//
// End of initialization
//
addStyles(langBtnCssClass);
addButtons();
addClearBtn();
// generates and adds language select buttons to DOM
function addButtons() {
var buttons = "",
buttonsDiv = btnDivSelector();
for (var i = languages.length - 1; i >= 0; i--) {
buttons += generateFlagBtnHTML(languages[i]);
}
buttonsDiv.insertAdjacentHTML('beforeend', buttons);
buttons = document.querySelectorAll('.topic_buttons li > input[type="checkbox"]');
for (var j = buttons.length - 1; j >= 0; j--) {
buttons[j].onclick = cbOnClick;
}
}
function addClearBtn() {
var buttonsDiv = btnDivSelector(),
HTML = '<li><a id="js-btn-clear">Clear Filter</a></li>';
buttonsDiv.insertAdjacentHTML('beforeend', HTML);
document.querySelector('#js-btn-clear').onclick = function(e) {
var buttons = document.querySelectorAll('ul.topic_buttons > li > input:checked');
for (var i = buttons.length - 1; i >= 0; i--) {
buttons[i].checked = false;
}
applyFilter([]);
};
}
function generateFlagBtnHTML(langClass) {
var lang = toHumanLang(langClass),
HTML = '<li><input type="checkbox" id="btn_' + lang + '"><label for="btn_' + lang +
'"><div class="flag-icon"> </div></label></li>';
return HTML;
}
// if user is not logged in, usual selector through div.clear will return null,
// we need to use other selector
function btnDivSelector() {
var btnDiv = document.querySelector('div.clear > ul.topic_buttons');
if (btnDiv !== null) {
return btnDiv;
} else {
return document.querySelector('ul.topic_buttons > li.disabled').parentElement;
}
}
// used as language button OnClick event
function cbOnClick(e) {
var cbChecked = document.querySelectorAll('.topic_buttons li > input[type="checkbox"]:checked'),
enabledLangs = [];
for (var i = cbChecked.length - 1; i >= 0; i--) {
enabledLangs.push(toClassLang(cbChecked[i].id.substr(4)));
}
if (enabledLangs.length > 0) {
applyFilter(getDisabledLangs(enabledLangs));
} else {
applyFilter([]);
}
}
function toHumanLang(lang) {
if ((typeof lang === "string") && (lang.match(/^\.lang_(\w+)/))) {
return lang.substr(6);
} else {
console.error('Bad language string passed to toHumanLang: %s', lang);
return false;
}
}
function toClassLang(lang) {
if (typeof lang === "string") {
var result = '.lang_' + lang;
if (languages.indexOf(result) >= 0) {
return result;
} else {
console.error('Unknown language passed to toClassLang: %s', lang);
return false;
}
}
}
function addStyles(rules) {
var style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = rules;
document.querySelector('head').appendChild(style);
}
// returns array of languages without langs supplied in arguments
function getDisabledLangs(langs) {
var langStr = languages.join(';');
for (var i = langs.length - 1; i >= 0; i--) {
langStr = langStr.replace(RegExp(';?' + langs[i]), '');
}
// if languages[0] is removed, result[0] will be empty, we should remove it;
var result = langStr.split(';');
if (result[0] === "") {
result.shift();
}
return result;
}
// accepts an array of language classes
function applyFilter(langs) {
var rows = document.querySelectorAll('.chapter_row');
for (var i = rows.length - 1; i >= 0; i--) {
rows[i].show();
}
rows = [];
for (var i = langs.length - 1; i >= 0; i--) {
rows = document.querySelectorAll(langs[i]);
for (var j = rows.length - 1; j >= 0; j--) {
rows[j].hide();
}
}
}
})();