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amazon-search.js
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// ==UserScript== | |
// @name Amazon Search | |
// @namespace https://www.amazon.com/ | |
// @version 1.3 | |
// @description Provides Amazon Search UI on product pages | |
// @author Ravikiran Janardhana | |
// @match https://www.amazon.com/*/dp/* | |
// @updateURL https://gist.github.com/ravikiranj/2d9cc6cf3d4052ae4043fa2c1eb06a62/raw/amazon-search.js | |
// @downloadURL https://gist.github.com/ravikiranj/2d9cc6cf3d4052ae4043fa2c1eb06a62/raw/amazon-search.js | |
// @grant none | |
// ==/UserScript== | |
/* | |
Add below line to UserScript section to edit locally the file contents | |
// @require file://PATH-TO-REPO\tampermonkey-scripts\src\amazon\amazon-search.js | |
*/ | |
const search = (function($) { | |
'use strict'; | |
// Private Variables (immutable) | |
const customerReviewsElem = $("#reviewsMedley"), | |
searchFormId = "SEARCH_FORM", | |
searchInputId = "SEARCH_INPUT", | |
searchSubmitId = "SEARCH_SUBMIT", | |
searchFormHtml = ` | |
<form id="${searchFormId}"> | |
<input type="search" id="${searchInputId}" style="width: 300px;" maxlength="300" placeholder="Search customer reviews"> | |
<span class="a-button a-button-base" id="${searchSubmitId}"> | |
<span class="a-button-inner"> | |
<a href="javascript:void(0);" class="a-button-text" role="button">Search</a> | |
</span> | |
</span> | |
</form> | |
<hr class="a-spacing-large a-divider-normal"> | |
`, | |
searchFormDom = $(searchFormHtml), | |
productIdRegex = /https:\/\/www\.amazon\.com\/.*\/dp\/([^\/]+)\/.*/, | |
searchPageBaseUrl = "https://www.amazon.com/product-reviews/", | |
searchPageParameters = "/?ie=UTF8&reviewerType=all_reviews&pageNumber=1&filterByKeyword=" | |
; | |
// Private Variables (mutable) | |
let searchFormElem, | |
searchInputElem, | |
searchSubmitElem, | |
productId | |
; | |
// Private functions | |
const _getProductId = function() { | |
const url = window.location.href; | |
const matchResult = url.match(productIdRegex); | |
if (!matchResult) { | |
searchFormElem.hide(); | |
} | |
return matchResult && matchResult[1] ? matchResult[1] : null; | |
}, | |
_handleSearchEvent = function(e) { | |
const query = searchInputElem.val(); | |
e.stopPropagation(); | |
e.preventDefault(); | |
console.log("Redirecting to search page for query = ", query); | |
const searchPageUrl = searchPageBaseUrl + productId + searchPageParameters + query; | |
window.open(searchPageUrl, "_blank"); | |
}, | |
_initEventHandlers = function() { | |
searchSubmitElem.click(_handleSearchEvent); | |
// Requires user to allow popups | |
searchFormElem.keypress(function(e) { | |
const keyCode = e.keyCode ? e.keyCode : e.which; | |
if (keyCode == "13") { | |
_handleSearchEvent(e); | |
} | |
}); | |
}, | |
_addSearchFormToDomAndInitElems = function() { | |
searchFormDom.insertBefore(customerReviewsElem); | |
searchFormElem = $("#" + searchFormId); | |
searchInputElem = $("#" + searchInputId); | |
searchSubmitElem = $("#" + searchSubmitId); | |
}, | |
_checkIfProductIdExists = function () { | |
productId = _getProductId(); | |
if (!productId) { | |
searchFormElem.hide(); | |
} else { | |
console.log("AmazonSearch Tampermonkey script: productId =", productId, "found, review search box is enabled"); | |
} | |
} | |
; | |
return { | |
init: function() { | |
_addSearchFormToDomAndInitElems(); | |
_initEventHandlers(); | |
_checkIfProductIdExists(); | |
} | |
}; | |
})(jQuery); | |
// Initialize search | |
search.init(); |
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