Show tags in the transactions listing on Mint.com.
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// ==UserScript==
// @name Mint.com tags display
// @include https://*.mint.com/*
// @description Show tags in the transactions listing on Mint.com.
// @namespace com.warkmilson.mint.js
// @author Mark Wilson
// @version 1.0.0
// @homepage https://github.com/mddub/mint-tags-display
// @grant none
// @noframes
// ==/UserScript==
//
(function() {
// tweak tag style: (default colors were chosen for consistency with Mint's theme)
var TAG_STYLE = 'background: #0AC775; color: white; font-size: 10px; display: inline-block; margin-left: 4px; padding: 0 2px';
var transIdToTags = {};
var tagIdToName = {};
function maybeIngestTransactionsList(response) {
var json = window.JSON.parse(response);
json['set'].forEach(function(item) {
if(item['id'] === 'transactions') {
item['data'].forEach(function(trans) {
transIdToTags[trans['id']] = trans['labels'].map(function(label) { return label['name']; }).join(', ');
trans['labels'].forEach(function(label) {
tagIdToName[label['id']] = label['name'];
});
});
}
});
}
function maybeIngestTagsList(response) {
var json = window.JSON.parse(response);
if(json['bundleResponseSent']) {
jQuery.each(json['response'], function(key, val) {
if(val['responseType'] === 'MintTransactionService_getTagsByFrequency') {
val['response'].forEach(function(tagData) {
tagIdToName[tagData['id']] = tagData['name'];
});
}
});
}
}
function interceptTransactionEdit(data) {
var transIds = [];
var tagNames = [];
data.split('&').forEach(function(pair) {
var kv = pair.split('='), key = window.decodeURIComponent(kv[0]), val = window.decodeURIComponent(kv[1]);
var tagId = key.match(/tag(\d+)/);
if(tagId !== null && val === '2') {
tagNames.push(tagIdToName[tagId[1]]);
}
// value is '1234:0' for a single transaction, '1234:0,2345:0' for multiple
if(key === 'txnId') {
transIds = val.split(',').map(function(tId) { return tId.split(':')[0]; });
}
});
transIds.forEach(function(tId) {
transIdToTags[tId] = tagNames.join(', ') || undefined;
if(jQuery('#transaction-' + tId).length > 0) {
updateRow('transaction-' + tId);
}
});
}
// update a transaction row using cached tag data
function updateRow(rowId) {
var $td = jQuery('#' + rowId).find('td.cat');
var transId = rowId.split('-')[1];
if(transIdToTags[transId]) {
if($td.find('.gm-tags').length === 0) {
$td.append('<span class="gm-tags" style="' + TAG_STYLE + '"></span>');
}
$td.find('.gm-tags').text(transIdToTags[transId]);
} else {
$td.find('.gm-tags').remove();
}
}
(function(open) {
XMLHttpRequest.prototype.open = function() {
// instrument all XHR responses to intercept the ones which may contain transaction listing or tag listing
this.addEventListener("readystatechange", function() {
if(this.readyState === 4 && this.responseURL.match('getJsonData.xevent')) {
maybeIngestTransactionsList(this.responseText);
} else if(this.readyState === 4 && this.responseURL.match('bundledServiceController.xevent')) {
maybeIngestTagsList(this.responseText);
}
}, false);
// instrument all XHR requests to intercept edits to transactions
if(arguments[0].match(/post/i) && arguments[1].match('updateTransaction.xevent')) {
var self = this, send = this.send;
this.send = function() {
interceptTransactionEdit(arguments[0]);
send.apply(self, arguments);
};
}
open.apply(this, arguments);
};
})(XMLHttpRequest.prototype.open);
function observeDOM(target) {
var observer;
function handleMutations(mutations) {
var rowIdsToUpdate = {};
mutations.forEach(function(mutation) {
var $target = jQuery(mutation.target);
var $tr = jQuery(mutation.target).parents('tr').first();
if(!$target.hasClass('gm-tags') && $tr.length && $tr.attr('id') && $tr.attr('id').indexOf('transaction-') === 0) {
// when the transactions list changes, there will be multiple mutations per row (date column, amount column, etc.)
rowIdsToUpdate[$tr.attr('id')] = true;
}
});
observer.disconnect();
for(var rowId in rowIdsToUpdate) {
updateRow(rowId);
}
observe();
}
function observe() {
observer = new MutationObserver(handleMutations);
observer.observe(
target,
{subtree: true, childList: true, characterData: true}
);
}
observe();
}
(function waitForTable() {
var target = document.querySelector('#transaction-list-body');
if(target === null) {
setTimeout(waitForTable, 500);
return;
}
// populate the table with tags after it first loads
jQuery(target).find('tr').each(function(_, row) {
updateRow(row.id);
});
observeDOM(target);
})();
})();