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soeren / 500px Download Images w/ various UX enhancements

// ==UserScript==
// @name        500px Download Images w/ various UX enhancements
// @namespace   http://twitter.com/depositado
// @description Easy download of images from 500px late 2015 version
// @include     https://500px.com/*
// @date        2015-12-23
// @version     1.0.1
// @updateURL   http://userscripts.org/scripts/source/174189.meta.js
// @grant       none
// ==/UserScript==

// URL:		https://userscripts.org/scripts/review/174189

/* // @require     http://update.sizzlemctwizzle.com/174189.js */

if (typeof console == "undefined") {
    window.console = {
        log: function () {}
    };
}


// script details/updates
var us_174189_Name      = GM_info.script.name;
var us_174189_Version   = GM_info.script.version;

// first run?
function firstRun(){
    if( $.cookie('us_174189_name') == null){    
        //set cookies
        $.cookie('us_174189_name',    us_174189_Name, {expires: 365, path: '/'});
        $.cookie('us_174189_version', us_174189_Version, {expires: 365, path: '/'});
        console.info('Hi, thanks for using userscript: '+us_174189_Name+' v'+us_174189_Version);
    }
}
function checkIfUpdated(){
    if( $.cookie('us_174189_version') != us_174189_Version){    
        //re-set cookies
        $.cookie('us_174189_name',    us_174189_Name, {expires: 365, path: '/'});
        $.cookie('us_174189_version', us_174189_Version, {expires: 365, path: '/'});
        console.info('Userscript updated to version: '+us_174189_Version);
    }
}


// jquery.waitUntilExists
// Author/source: https://gist.github.com/PizzaBrandon/5709010
(function(e,f){var b={},g=function(a){b[a]&&(f.clearInterval(b[a]),b[a]=null)};e.fn.waitUntilExists=function(a,h,j){var c=this.selector,d=e(c),k=d.not(function(){return e(this).data("waitUntilExists.found")});"remove"===a?g(c):(k.each(a).data("waitUntilExists.found",!0),h&&d.length?g(c):j||(b[c]=f.setInterval(function(){d.waitUntilExists(a,h,!0)},500)));return d}})(jQuery,window);

// jquery.domchanged.min.js
(function(e){if(typeof exports=="object"){e(require("jquery"))}else if(typeof define=="function"&&define.amd){define(["jquery"],e)}else{e(jQuery)}})(function(e){"use strict";function t(t,n){return e(t).trigger("DOMChanged",n)}function n(t,n){var r=e.fn[t];if(r){e.fn[t]=function(){var e=Array.prototype.slice.apply(arguments);var t=r.apply(this,e);n.apply(this,e);return t}}}n("prepend",function(){return t(this,"prepend")});n("append",function(){return t(this,"append")});n("before",function(){return t(e(this).parent(),"before")});n("after",function(){return t(e(this).parent(),"after")});n("html",function(e){if(typeof e==="string"){return t(this,"html")}})})


function download500px(){    
    
    console.info('download500px()');
    
	// define vars
	var
		THEphoto,
		downloadLINK,
		pathArray,
		photoID,
		photoContainerDiv,
		availHeight,
		downloadCursor,
		bkgPrefix;
	
	// set vars
	THEphoto = $('img.photo');
	downloadLINK = THEphoto.attr('src'); //downloadLINK = $('img.the_photo').attr('src');
	console.info("downloadLINK: " + downloadLINK);
	pathArray = downloadLINK.split('/'); //photoID = PxInitialData['photo']['id'];
	photoID = pathArray[3];
	photoContainerDiv = $('div.photo_container');
	downloadCursor = 'data:image/png;base64,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';
        
    // set data attr on image
    THEphoto.data('img-height', THEphoto.height());
    THEphoto.data('img-width', THEphoto.width());
    
    
    // add black background to image container
    photoContainerDiv.css({
        'background-color': 'rgb(34,34,34)',
        'min-height': '400px',
        'margin-bottom': '20px',
        'padding': '30px 0 30px 0',
        //'background-image': 'url('+bkg_url+')',
	    //'background-size': '100% 100%'
    });

    // add height to data-attr
    photoContainerDiv.data('height', photoContainerDiv.height());
    console.log(photoContainerDiv.height());
    

	// remove annoying 'disabled right-click' from image + style-attributes
	THEphoto.removeAttr('data-protect');
	THEphoto.attr("type", "application/octet-stream");
	
	// calc available height
	availHeight = $(window).height() - 150;
	$('div.focus').remove();
	$('div.overlay').css({
	   //'max-height': ''+availHeight+'px',
	   //'width': 'auto',
	   'cursor': 'alias',
	   'cursor': '-webkit-zoom-in',
	   'cursor': '-moz-zoom-in',
	   'cursor': 'url("'+downloadCursor+'"), auto',
	   '-webkit-box-shadow':   '0px 0px 10px rgba(50, 50, 50, 1)',
	   '-moz-box-shadow':      '0px 0px 10px rgba(50, 50, 50, 1)',
	   'box-shadow':           '0px 0px 10px rgba(50, 50, 50, 1)'	   
	   
	}).click(function(e){
		e.preventDefault();  //stop the browser from following
		window.location.href = downloadLINK;
		return false;
	});
	
	// if 'data-protect' is not properly removed and/or still being captured by 500px
	THEphoto.oncontextmenu = function() {
		return false;
	};
	
	THEphoto.mousedown(function(e){ 
		if( e.button == 2 ) {
			window.open(downloadLINK);
			return false;
		}
		return true;
	});
	$(".photo_thumbnail").click(function(e){
					console.info('a.photo_link clicked');
    		setTimeout(function(){ download500px(); }, 300);
    		}
    	);
}


$(function() {
    
    console.info('USERSCRIPT LOADED: 500px Download Images w/ various UX enhancements');
    
    firstRun();
    checkIfUpdated();
    
    $('head').append("<link href='//dl.dropboxusercontent.com/u/3899/userscripts/500px-download-img-w-ux-enhancements/174189.css' rel='stylesheet' type='text/css'>");
    
    /* photo download */
    //if ($('body#photos_show').length > 0 || $('a.photo_link').length > 0) {
        
        console.info('body#photos_show');
        
        // onload
    	window.setTimeout(download500px, 1000);
    	
    	// hotkey support
    	$(document).keydown(function(e){
    		if (e.keyCode == 37 || e.keyCode == 39) {  // keyCode: 37 (left arrow), keyCode: 39 (right arrow)
    			console.info('keydown: '+e.keyCode);
    			// wait a little so next image is loaded, otherwise old 'data' is used
    			setTimeout(function(){ download500px(); }, 300);
    		}  		
    	});
 
    //}
       	
});