Current: Use arrow key to flip pages in e-hentai.
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// ==UserScript==
// @name EHFlipper
// @namespace https://github.com/andylinpersonal/
// @version 0.1
// @description Current: Use arrow key to flip pages in e-hentai.
// @require http://code.jquery.com/jquery-latest.js
// @author Andy Lin
// @run-at document-start
// @match https://exhentai.org/*
// @match https://e-hentai.org/*
// @grant unsafeWindow
// ==/UserScript==
if (!unsafeWindow) {
unsafeWindow = this;
}
(function() {
'use strict';
/**
* Logging messages to console.
* @param {String} modeStr - log mode: can be 'error', 'warning', 'log', and other
* @param {String} inStr - What to display.
* @returns {void}
*/
function logger(modeStr, inStr) {
if (modeStr === 'error') {
console.error('EHFlipper: Error: ' + inStr);
} else if (modeStr === 'warning') {
console.warn('EHFlipper: Warning: ' + inStr);
} else if (modeStr === 'log') {
console.log('EHFlipper: Message: ' + inStr);
} else {
console.log('EHFlipper: ' + modeStr + ': ' + inStr);
}
}
/**
* Check operation mode from url format
* @param {String} url - URL of current page.
* @returns {Object} Mode object.
*/
function modeChecker(url) {
/**
* Get current page
* @param {String} url - URL of current page.
* @param {RegExp} patternOfPage - Pattern of page string
* @param {int} startOfNum - Start offset of page number
* @returns {int} Current page.
*/
function pageChecker(url, patternOfPage) {
var found = url.match(patternOfPage);
if (found) {
found = found[1];
} else {
return 0;
}
var out = Number(found);
if (isNaN(out)) return 0;
return out;
}
if (url.match(/\/g\//)) {
return {
'type': 'gallery',
'page': (pageChecker(url, /(?:p=)([0-9]*)/, 2) + 1)
};
} else if (url.match(/\/s\//)) {
return {
'type': 'show',
'page': (pageChecker(url, /[0-9a-zA-Z]{1,1}-(?:([0-9]{1,}))/, 2))
};
} else {
return {
'type': 'main',
'page': (pageChecker(url, /(?:(?:page=)|(?:\/))([0-9]{1,})/) + 1)
};
}
}
/**
* Event handler of keydown event
* @param {KeyboardEvent} e - KeyboardEvent
* @returns {void}
*/
function go(e) {
/**
* Go~~
* @param {Object} mode - Where are you?
* @param {String} action - Previous or next page?
* @returns {void}
*/
function switchPage(mode, action) {
switch (mode.type) {
case 'main':
if (action === 'next') {
$('.ptt td')[12].click();
return;
} else if (action === 'previous') {
$('.ptt td')[0].click();
return;
}
break;
case 'show':
if (action === 'next') {
$('#i2 #next')[0].click();
return;
} else if (action === 'previous') {
$('#i2 #prev')[0].click();
return;
}
break;
case 'gallery':
if (action === 'next') {
$('.ptt td')[12].click();
return;
} else if (action === 'previous') {
$('.ptt td')[0].click();
return;
}
break;
default:
logger('error', 'Unknown mode: ' + mode.type);
break;
}
logger('error', 'Unknown action: ' + action);
}
var url = unsafeWindow.document.location.href;
var mode = modeChecker(url);
switch (e.key) {
case 'ArrowLeft':
logger('log', e.key + ' is pressed.');
switchPage(mode, 'previous');
break;
case 'ArrowRight':
logger('log', e.key + ' is pressed.');
switchPage(mode, 'next');
break;
default:
logger(
'log', 'Unknown key "' +
e.key +
'" with keyCode "' +
e.keyCode +
'"is pressed.');
break;
}
}
var url = unsafeWindow.document.location.href;
var mode = modeChecker(url);
logger('Current location', url);
logger('Current page', mode.page);
// Register event handler to <body>
// Because keypress event will ignore arrow key, I use keydown instead.
$('body').keydown(go);
})();