8c8787bac5
If the form's enctype attribute is set to "multipart/form-data", use FormData to encode the form's elements.
78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
var updateQueryString = require("./util/update-query-string");
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module.exports = function(location, options, callback) {
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options = options || {}
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var queryString
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var requestOptions = options.requestOptions || {}
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var requestMethod = (requestOptions.requestMethod || "GET").toUpperCase()
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var requestParams = requestOptions.requestParams || null
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var requestPayload = null
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var request = new XMLHttpRequest()
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var timeout = options.timeout || 0
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request.onreadystatechange = function() {
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if (request.readyState === 4) {
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if (request.status === 200) {
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callback(request.responseText, request, location, options)
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}
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else if (request.status !== 0) {
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callback(null, request, location, options)
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}
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}
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}
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request.onerror = function(e) {
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console.log(e)
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callback(null, request, location, options)
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}
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request.ontimeout = function() {
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callback(null, request, location, options)
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}
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// Prepare the request payload for forms, if available
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if (requestParams && requestParams.length) {
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// Build query string
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queryString = (requestParams.map(function(param) {return param.name + "=" + param.value})).join("&")
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switch (requestMethod) {
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case "GET":
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// Reset query string to avoid an issue with repeat submissions where checkboxes that were
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// previously checked are incorrectly preserved
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location = location.split("?")[0]
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// Append new query string
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location += "?" + queryString
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break
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case "POST":
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// Send query string as request payload
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requestPayload = queryString
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break
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}
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}
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else if (requestOptions.formData) {
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requestPayload = requestOptions.formData
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}
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// Add a timestamp as part of the query string if cache busting is enabled
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if (options.cacheBust) {
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location = updateQueryString(location, "t", Date.now())
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}
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request.open(requestMethod, location, true)
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request.timeout = timeout
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request.setRequestHeader("X-Requested-With", "XMLHttpRequest")
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request.setRequestHeader("X-PJAX", "true")
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request.setRequestHeader("X-PJAX-Selectors", JSON.stringify(options.selectors))
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// Send the proper header information for POST forms
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if (requestPayload && requestMethod === "POST") {
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request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
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}
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request.send(requestPayload)
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return request
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}
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