pixiv の原寸画像が表示領域に収まるように画像サイズを変更
Устаревшая версия за
// ==UserScript==
// @name Pixiv Image Size Fitting
// @namespace http://userscripts.org/users/121129
// @description pixiv の原寸画像が表示領域に収まるように画像サイズを変更
// @include http://www.pixiv.net/member_illust.php?*
// @version 7
// @grant none
// @license MIT
// ==/UserScript==
;(function() {
'use strict'
var img = document.querySelector('img')
function hasBigModeParam() {
return window.location.search.slice(1).split('&').indexOf('mode=big') >= 0
}
function fitImageIfLargerThanWindow() {
if (img.height > window.innerHeight) img.height = window.innerHeight
if (img.width > window.innerWidth) {
if (img.hasAttribute('height')) {
img.height = Math.round(img.height * (window.innerWidth / img.width))
}
img.width = window.innerWidth
}
}
function isCharKeyEvent(event, chars) {
return !event.altKey
&& !event.ctrlKey
&& !event.metaKey
&& !event.shiftKey
&& chars.indexOf(String.fromCharCode(event.keyCode).toLowerCase()) >= 0
}
function isFitted() {
return img.hasAttribute('height') || img.hasAttribute('width')
}
function clearFitting() {
img.removeAttribute('height')
img.removeAttribute('width')
}
function toggleImageSize() {
if (isFitted()) {
clearFitting()
} else {
fitImageIfLargerThanWindow()
}
}
function main() {
if (!hasBigModeParam()) return
if (img.complete) {
fitImageIfLargerThanWindow()
} else {
img.addEventListener('load', fitImageIfLargerThanWindow)
}
window.addEventListener('resize', function() {
if (!img.complete) return
if (isFitted()) clearFitting()
fitImageIfLargerThanWindow()
})
window.addEventListener('keydown', function(e) {
if (isCharKeyEvent(e, ['o', 'v'])) toggleImageSize()
})
}
main()
})()