Merge pull request #1035 from ethereum/refactor/remove_jquery_from_compiler_code

remove jquery & UI dependency from compiler code

package.json

@@ -46,6 +46,7 @@
     "remix-lib": "latest",
     "remix-solidity": "latest",
     "remixd": "git+https://github.com/ethereum/remixd.git",
+    "request": "^2.83.0",
     "rimraf": "^2.6.1",
     "selenium-standalone": "^6.0.1",
     "standard": "^8.5.0",

src/app.js

@@ -201,7 +201,11 @@ function run () {
     if (provider && provider.exists(url)) {
       return provider.get(url, cb)
     }
-    handleImports.import(url, (error, content, cleanUrl, type, url) => {
+    handleImports.import(url,
+      (loadingMsg) => {
+        $('#output').append($('<div/>').append($('<pre/>').text(loadingMsg)))
+      },
+      (error, content, cleanUrl, type, url) => {
         if (!error) {
           filesProviders[type].addReadOnly(cleanUrl, content, url)
           cb(null, content)

src/app/compiler/compiler-imports.js

@@ -1,23 +1,30 @@
 'use strict'
-// TODO: can just use request or fetch instead
-var $ = require('jquery')
 var base64 = require('js-base64').Base64
 var swarmgw = require('swarmgw')
+var request = require('request')
 
 module.exports = {
   handleGithubCall: function (root, path, cb) {
-    return $.getJSON('https://api.github.com/repos/' + root + '/contents/' + path)
+    return request.get(
-      .done(function (data) {
+      {
+        url: 'https://api.github.com/repos/' + root + '/contents/' + path,
+        json: true,
+        headers: {
+          'User-Agent': 'Remix'
+        }
+      },
+      (err, r, data) => {
+        if (err) {
+          return cb(err || 'Unknown transport error')
+        }
         if ('content' in data) {
           cb(null, base64.decode(data.content), root + '/' + path)
+        } else if ('message' in data) {
+          cb(data.message)
         } else {
           cb('Content not received')
         }
       })
-      .fail(function (xhr, text, err) {
-        // NOTE: on some browsers, err equals to '' for certain errors (such as offline browser)
-        cb(err || 'Unknown transport error')
-      })
   },
 
   handleSwarmImport: function (url, cb) {
@@ -30,14 +37,19 @@ module.exports = {
     // replace ipfs:// with /ipfs/
     url = url.replace(/^ipfs:\/\/?/, 'ipfs/')
 
-    return $.ajax({ type: 'GET', url: 'https://gateway.ipfs.io/' + url })
+    return request.get(
-      .done(function (data) {
+      {
+        url: 'https://gateway.ipfs.io/' + url,
+        headers: {
+          'User-Agent': 'Remix'
+        }
+      },
+      (err, r, data) => {
+        if (err) {
+          return cb(err || 'Unknown transport error')
+        }
         cb(null, data, url)
       })
-      .fail(function (xhr, text, err) {
-        // NOTE: on some browsers, err equals to '' for certain errors (such as offline browser)
-        cb(err || 'Unknown transport error')
-      })
   },
 
   handlers: function () {
@@ -48,7 +60,7 @@ module.exports = {
     ]
   },
 
-  import: function (url, cb) {
+  import: function (url, loadingCb, cb) {
     var handlers = this.handlers()
 
     var found = false
@@ -61,8 +73,7 @@ module.exports = {
       if (match) {
         found = true
 
-        // TODO: this needs to be moved to the caller
+        loadingCb('Loading ' + url + ' ...')
-        $('#output').append($('<div/>').append($('<pre/>').text('Loading ' + url + ' ...')))
         handler.handler(match, function (err, content, cleanUrl) {
           if (err) {
             cb('Unable to import "' + cleanUrl + '": ' + err)