Adds a button to instantly download the optimum (largest) wallpaper image size, calculated on the base of megapixel total.
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// ==UserScript==
// @name InterfaceLIFT | Auto-Select Largest Available Wallpaper Size
// @description Adds a button to instantly download the optimum (largest) wallpaper image size, calculated on the base of megapixel total.
// @version 3.5.6
// @namespace sidneys
// @author sidneys
// @source https://gist.github.com/sidneys/32af71f8a3260cee2baef026837151a5
// @icon https://interfacelift.com/favicon.ico
// @include http*://interfacelift.com/wallpaper/*
// @grant GM_addStyle
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_xmlhttpRequest
// @require https://code.jquery.com/jquery-latest.min.js
// @require https://greasyfork.org/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=19641
// ==/UserScript==
/**
* @default
* @constant
*/
const interfaceliftBaseurl = 'http://interfacelift.com/wallpaper/7yz4ma1/';
/**
* @param {String} dimensionsString - Image dimensions as string (e.g. '800x600', '1920x1080')
* @returns {Number} Image size in megapixels
*/
let calculateMegapixels = (dimensionsString) => {
let width = dimensionsString.match(/\d+/g)[0];
let height = dimensionsString.match(/\d+/g)[1];
let megapixels = ((width*height)/1048576).toFixed(2);
return megapixels;
};
/**
* @typedef {Object} OptimumImageObject
* @property {String} dimensions - Image dimensions as string
* @property {Number} megapixels - Image size in megapixels
* @property {String} url - Image url
*/
/**
* @param {String} imageId - Wallpaper id
* @param {String} imageName - Wallpaper name
* @param {HTMLSelectElement} elementDropdown - Dropdown resolution selector
* @returns {OptimumImageObject} Optimum (largest) image
*/
let getOptimumImageObject = (imageId, imageName, elementDropdown) => {
let dimensionsList = [];
let dimensionMax;
let megapixelsMax;
let urlMax;
const imageIdPadded = imageId.length < 5 ? `0${imageId}` : `${imageId}`;
const imageNameClean = imageName.replace(/_/g, '');
const elementOptionList = elementDropdown.querySelectorAll('optgroup');
elementOptionList.forEach((elem) => {
dimensionsList.push(elem.querySelector('option').value);
dimensionsList.sort((a,b) => {
megapixelsA = calculateMegapixels(a);
megapixelsB = calculateMegapixels(b);
if (megapixelsA > megapixelsB) { return -1; }
if (megapixelsA < megapixelsB) { return 1; }
return 0;
});
});
dimensionMax = dimensionsList[0];
megapixelsMax = calculateMegapixels(dimensionMax);
urlMax = `${interfaceliftBaseurl}${imageIdPadded}_${imageNameClean}_${dimensionMax}.jpg`;
return {
dimensions: dimensionMax,
megapixels: megapixelsMax,
url: urlMax
};
};
/**
* Adds largest resolution download controls
*/
let addDownloadControls = () => {
let itemList = document.querySelectorAll('#wallpaper .item');
itemList.forEach((elem) => {
// Parse DOM for image name and id
let elemPreview = elem.getElementsByClassName('preview')[0];
let elemPreviewAnchor = elemPreview.getElementsByTagName('a')[0];
let elemPreviewSelect = elem.getElementsByClassName('select')[0];
let wallpaperUrl = elemPreviewAnchor.getAttribute('href');
let imageId = wallpaperUrl.match(/\d+/)[0];
let imageName = wallpaperUrl.replace(/.*\/|\.[^.]*$/g, '');
// Calculate dimensions maxima
const imageMaximum = getOptimumImageObject(imageId, imageName, elemPreviewSelect);
const imageDimensions = imageMaximum.dimensions;
const imageMegapixels = imageMaximum.megapixels;
const imageUrl = imageMaximum.url;
// Set form value
let elemForm = elem.getElementsByClassName('select')[0];
elemForm.value = imageDimensions;
// Add button for download
let elemDownload = document.createElement('div');
elemPreview.appendChild(elemDownload);
elemDownload.style.height='28px';
elemDownload.style.marginLeft='44px';
elemDownload.style.backgroundColor='rgba(150,50,50,0.1)';
elemDownload.classList.add('download');
elemDownload.innerHTML=`<span style="display: inline-block; margin: 4px 8px; width: 145px; max-width: 145px; text-align: left; font-family: Arial, sans-serif; font-size: 11px; -webkit-font-smoothing: subpixel-antialiased;"><b>Max:</b> ${imageDimensions} (${imageMegapixels}MP)</span><div id="download_4113" style="display: inline-block; float: right;"><a download href="${imageUrl}"><img src="/img_NEW/button_download.png" style="filter: hue-rotate(169deg) saturate(400%);"></a></div>`;
});
};
/**
* Initialize
*/
waitForKeyElements('#wallpaper', () => {
addDownloadControls();
});