Glitch mass mail delete userscript

mass_glitch_mail.user.js

// ==UserScript==
// @name        Mass delete Glitch mail messages
// @namespace   yijiang
// @include     http://www.glitch.com/mail/
// @include     http://www.glitch.com/mail/all/
// @version     1.04
// ==/UserScript==

function init() {
	function deleteMessage (message) {
		var containAttachment = 0;

		message.forEach(function(id){
			var ele = $('#mail-message-' + id);

			if (ele.find('.mail-attachments-icon').length) {
				containAttachment ++;
				return;
			}

			ele.fadeTo(300, 0.4);
			
			$.post('/mail/' + id + '/delete/', {
	            done: 1, 
	            'delete': "Delete"
	        }, function(){
	        	$('#mail-message-' + id).slideUp(150);
	        });
		});

		if (containAttachment) {
			$('#mail-notification-bar')
				.text(containAttachment + ' mail had attachments on them and were thus not deleted.')
				.hide()
				.fadeIn(300);
		}
	}

	function deleteAuction () {
		$('div.mail-snippet a').each(function(){
		    var mailId = this.getAttribute('href').split('/')[2], 
		        text = $(this).text(), 
		        msg = [];
		    
		    if (text.match('Auction Fulfillment and Logistics Corporation')) {
		        msg.push(mailId);
		    }

		    deleteMessage(msg);
		});
	}

	function getSelectedMsg () {
		return checkboxes.map(function(){
			if (this.checked) {
				return $(this).parent().attr('data-message-id');
			}
		}).get();
	}

	var checkboxes = $('<input>', {
		type: 'checkbox', 
		'class': 'mail-delete-check', 
		click: function() {
			$(this).toggleClass('mail-delete-checked', this.checked);
		}
	}).appendTo('.mail-message');

	var buttonStyle = {
		marginTop: '10px', 
		padding: '6px 11px 5px',
		fontSize: '12px',
		width: '156px'
	};


	var deleteSelectedBtn = $('<a>', {
		'class': 'button', 
		text: 'Delete selected messages',
		css: buttonStyle,
		click: function() {
			deleteMessage(getSelectedMsg());
		}
	}).appendTo('.mail-sidebar');

	$('<a>', {
		'class': 'button', 
		text: 'Delete auction messages',
		css: buttonStyle,
		click: deleteAuction
	}).appendTo('.mail-sidebar');

	var w = $(window), 
		lastCallTime = Date.now(), 
		btnPosition = deleteSelectedBtn.offset().top;

	$(window).scroll(function(){
		if (Date.now() - lastCallTime > 100) {
			lastCallTime = Date.now();

			var toggle = (btnPosition - w.scrollTop()) < 20;

			deleteSelectedBtn
				.toggleClass('fixed-btn', toggle);
		}
		
	})
}

function inject () {
	var script = document.createElement('script');
	script.innerHTML = '(' + init.toString() + ')();';
	document.body.appendChild(script);

	var style = '.mail-delete-check { display: none; position: absolute; margin-top: 25px; } .mail-message:hover .mail-delete-check, .mail-delete-check.mail-delete-checked { display: block; } .fixed-btn {position: fixed; top: 19px; } ';
	var styleEle = document.createElement('style');
	styleEle.innerHTML = style;
	document.getElementsByTagName('head')[0].appendChild(styleEle);

}

inject();