Remove unneeded returns

lib/browser/guest-view-manager.js

@@ -48,7 +48,7 @@ const embedderElementsMap = {}
 
 // Moves the last element of array to the first one.
 const moveLastToFirst = function (list) {
-  return list.unshift(list.pop())
+  list.unshift(list.pop())
 }
 
 // Generate guestInstanceId.
@@ -227,7 +227,7 @@ const destroyGuest = function (embedder, guestInstanceId) {
   delete guestInstances[guestInstanceId]
 
   const key = embedder.getId() + '-' + guestInstance.elementInstanceId
-  return delete embedderElementsMap[key]
+  delete embedderElementsMap[key]
 }
 
 // Once an embedder has had a guest attached we watch it for destruction to
@@ -281,7 +281,7 @@ ipcMain.on('ELECTRON_GUEST_VIEW_MANAGER_DESTROY_GUEST', function (event, guestIn
 
 ipcMain.on('ELECTRON_GUEST_VIEW_MANAGER_SET_SIZE', function (event, guestInstanceId, params) {
   const guestInstance = guestInstances[guestInstanceId]
-  return guestInstance != null ? guestInstance.guest.setSize(params) : void 0
+  guestInstance != null ? guestInstance.guest.setSize(params) : void 0
 })
 
 // Returns WebContents from its guest id.

lib/renderer/web-view/guest-view-internal.js

@@ -57,7 +57,7 @@ var dispatchEvent = function (webView, eventName, eventKey, ...args) {
   }
   webView.dispatchEvent(domEvent)
   if (eventName === 'load-commit') {
-    return webView.onLoadCommit(domEvent)
+    webView.onLoadCommit(domEvent)
   }
 }
 
@@ -83,7 +83,7 @@ module.exports = {
       webView.dispatchEvent(domEvent)
     })
 
-    return ipcRenderer.on('ELECTRON_GUEST_VIEW_INTERNAL_SIZE_CHANGED-' + viewInstanceId, function (event, ...args) {
+    ipcRenderer.on('ELECTRON_GUEST_VIEW_INTERNAL_SIZE_CHANGED-' + viewInstanceId, function (event, ...args) {
       var domEvent, f, i, j, len, ref1
       domEvent = new Event('size-changed')
       ref1 = ['oldWidth', 'oldHeight', 'newWidth', 'newHeight']
@@ -98,21 +98,21 @@ module.exports = {
     ipcRenderer.removeAllListeners('ELECTRON_GUEST_VIEW_INTERNAL_DESTROY_GUEST-' + viewInstanceId)
     ipcRenderer.removeAllListeners('ELECTRON_GUEST_VIEW_INTERNAL_DISPATCH_EVENT-' + viewInstanceId)
     ipcRenderer.removeAllListeners('ELECTRON_GUEST_VIEW_INTERNAL_IPC_MESSAGE-' + viewInstanceId)
-    return ipcRenderer.removeAllListeners('ELECTRON_GUEST_VIEW_INTERNAL_SIZE_CHANGED-' + viewInstanceId)
+    ipcRenderer.removeAllListeners('ELECTRON_GUEST_VIEW_INTERNAL_SIZE_CHANGED-' + viewInstanceId)
   },
   createGuest: function (params, callback) {
     requestId++
     ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_CREATE_GUEST', params, requestId)
-    return ipcRenderer.once('ELECTRON_RESPONSE_' + requestId, callback)
+    ipcRenderer.once('ELECTRON_RESPONSE_' + requestId, callback)
   },
   attachGuest: function (elementInstanceId, guestInstanceId, params) {
     ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_ATTACH_GUEST', elementInstanceId, guestInstanceId, params)
-    return webFrame.attachGuest(elementInstanceId)
+    webFrame.attachGuest(elementInstanceId)
   },
   destroyGuest: function (guestInstanceId) {
-    return ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_DESTROY_GUEST', guestInstanceId)
+    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_DESTROY_GUEST', guestInstanceId)
   },
   setSize: function (guestInstanceId, params) {
-    return ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_SET_SIZE', guestInstanceId, params)
+    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_SET_SIZE', guestInstanceId, params)
   }
 }

lib/renderer/web-view/web-view-attributes.js

@@ -32,7 +32,7 @@ class WebViewAttribute {
 
   // Sets the attribute's value.
   setValue (value) {
-    return this.webViewImpl.webviewNode.setAttribute(this.name, value || '')
+    this.webViewImpl.webviewNode.setAttribute(this.name, value || '')
   }
 
   // Changes the attribute's value without triggering its mutation handler.
@@ -67,9 +67,9 @@ class BooleanAttribute extends WebViewAttribute {
 
   setValue (value) {
     if (!value) {
-      return this.webViewImpl.webviewNode.removeAttribute(this.name)
+      this.webViewImpl.webviewNode.removeAttribute(this.name)
     } else {
-      return this.webViewImpl.webviewNode.setAttribute(this.name, '')
+      this.webViewImpl.webviewNode.setAttribute(this.name, '')
     }
   }
 }
@@ -84,7 +84,7 @@ class AutosizeDimensionAttribute extends WebViewAttribute {
     if (!this.webViewImpl.guestInstanceId) {
       return
     }
-    return guestViewInternal.setSize(this.webViewImpl.guestInstanceId, {
+    guestViewInternal.setSize(this.webViewImpl.guestInstanceId, {
       enableAutoSize: this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_AUTOSIZE].getValue(),
       min: {
         width: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MINWIDTH].getValue() || 0),
@@ -125,7 +125,7 @@ class PartitionAttribute extends WebViewAttribute {
     }
     if (newValue === 'persist:') {
       this.validPartitionId = false
-      return window.console.error(webViewConstants.ERROR_MSG_INVALID_PARTITION_ATTRIBUTE)
+      window.console.error(webViewConstants.ERROR_MSG_INVALID_PARTITION_ATTRIBUTE)
     }
   }
 }
@@ -141,18 +141,15 @@ class GuestInstanceAttribute extends WebViewAttribute {
     if (this.webViewImpl.webviewNode.hasAttribute(this.name)) {
       return parseInt(this.webViewImpl.webviewNode.getAttribute(this.name))
     }
-    return undefined
   }
 
   // Sets the attribute's value.
   setValue (value) {
     if (!value) {
-      return this.webViewImpl.webviewNode.removeAttribute(this.name)
+      this.webViewImpl.webviewNode.removeAttribute(this.name)
+    } else if (!isNaN(value)) {
+      this.webViewImpl.webviewNode.setAttribute(this.name, value)
     }
-    if (isNaN(value)) {
-      return
-    }
-    return this.webViewImpl.webviewNode.setAttribute(this.name, value)
   }
 
   handleMutation (oldValue, newValue) {
@@ -192,7 +189,7 @@ class SrcAttribute extends WebViewAttribute {
     // is possible for this change to get picked up asyncronously by src's
     // mutation observer |observer|, and then get handled even though we do not
     // want to handle this mutation.
-    return this.observer.takeRecords()
+    this.observer.takeRecords()
   }
 
   handleMutation (oldValue, newValue) {
@@ -206,7 +203,7 @@ class SrcAttribute extends WebViewAttribute {
       this.setValueIgnoreMutation(oldValue)
       return
     }
-    return this.parse()
+    this.parse()
   }
 
   // The purpose of this mutation observer is to catch assignment to the src
@@ -232,7 +229,7 @@ class SrcAttribute extends WebViewAttribute {
       attributeOldValue: true,
       attributeFilter: [this.name]
     }
-    return this.observer.observe(this.webViewImpl.webviewNode, params)
+    this.observer.observe(this.webViewImpl.webviewNode, params)
   }
 
   parse () {
@@ -259,7 +256,7 @@ class SrcAttribute extends WebViewAttribute {
       opts.userAgent = useragent
     }
     guestContents = remote.getGuestWebContents(this.webViewImpl.guestInstanceId)
-    return guestContents.loadURL(this.getValue(), opts)
+    guestContents.loadURL(this.getValue(), opts)
   }
 }
 

lib/renderer/web-view/web-view.js

@@ -82,7 +82,7 @@ var WebViewImpl = (function () {
 
   // Sets the <webview>.request property.
   WebViewImpl.prototype.setRequestPropertyOnWebViewNode = function (request) {
-    return Object.defineProperty(this.webviewNode, 'request', {
+    Object.defineProperty(this.webviewNode, 'request', {
       value: request,
       enumerable: true
     })
@@ -119,7 +119,7 @@ var WebViewImpl = (function () {
     }
 
     // Let the changed attribute handle its own mutation
-    return this.attributes[attributeName].handleMutation(oldValue, newValue)
+    this.attributes[attributeName].handleMutation(oldValue, newValue)
   }
 
   WebViewImpl.prototype.handleBrowserPluginAttributeMutation = function (attributeName, oldValue, newValue) {
@@ -129,10 +129,9 @@ var WebViewImpl = (function () {
 
       // Track when the element resizes using the element resize callback.
       webFrame.registerElementResizeCallback(this.internalInstanceId, this.onElementResize.bind(this))
-      if (!this.guestInstanceId) {
-        return
+      if (this.guestInstanceId) {
+        guestViewInternal.attachGuest(this.internalInstanceId, this.guestInstanceId, this.buildParams())
       }
-      return guestViewInternal.attachGuest(this.internalInstanceId, this.guestInstanceId, this.buildParams())
     }
   }
 
@@ -157,7 +156,7 @@ var WebViewImpl = (function () {
 
       // Only fire the DOM event if the size of the <webview> has actually
       // changed.
-      return this.dispatchEvent(webViewEvent)
+      this.dispatchEvent(webViewEvent)
     }
   }
 
@@ -177,7 +176,7 @@ var WebViewImpl = (function () {
     resizeEvent.newHeight = newSize.height
     this.dispatchEvent(resizeEvent)
     if (this.guestInstanceId) {
-      return guestViewInternal.setSize(this.guestInstanceId, {
+      guestViewInternal.setSize(this.guestInstanceId, {
         normal: newSize
       })
     }
@@ -190,7 +189,7 @@ var WebViewImpl = (function () {
   }
 
   WebViewImpl.prototype.dispatchEvent = function (webViewEvent) {
-    return this.webviewNode.dispatchEvent(webViewEvent)
+    this.webviewNode.dispatchEvent(webViewEvent)
   }
 
   // Adds an 'on<event>' property on the webview, which can be used to set/unset
@@ -284,10 +283,9 @@ var registerBrowserPluginElement = function () {
   proto.attributeChangedCallback = function (name, oldValue, newValue) {
     var internal
     internal = v8Util.getHiddenValue(this, 'internal')
-    if (!internal) {
-      return
+    if (internal) {
+      internal.handleBrowserPluginAttributeMutation(name, oldValue, newValue)
     }
-    return internal.handleBrowserPluginAttributeMutation(name, oldValue, newValue)
   }
   proto.attachedCallback = function () {
     // Load the plugin immediately.
@@ -313,10 +311,9 @@ var registerWebViewElement = function () {
   proto.attributeChangedCallback = function (name, oldValue, newValue) {
     var internal
     internal = v8Util.getHiddenValue(this, 'internal')
-    if (!internal) {
-      return
+    if (internal) {
+      internal.handleWebviewAttributeMutation(name, oldValue, newValue)
     }
-    return internal.handleWebviewAttributeMutation(name, oldValue, newValue)
   }
   proto.detachedCallback = function () {
     var internal
@@ -340,9 +337,10 @@ var registerWebViewElement = function () {
       internal.elementAttached = true
       instance = internal.attributes[webViewConstants.ATTRIBUTE_GUESTINSTANCE].getValue()
       if (instance) {
-        return internal.attachGuestInstance(instance)
+        internal.attachGuestInstance(instance)
+      } else {
+        internal.attributes[webViewConstants.ATTRIBUTE_SRC].parse()
       }
-      return internal.attributes[webViewConstants.ATTRIBUTE_SRC].parse()
     }
   }
 
@@ -424,7 +422,7 @@ var registerWebViewElement = function () {
   createNonBlockHandler = function (m) {
     return function (...args) {
       const internal = v8Util.getHiddenValue(this, 'internal')
-      return ipcRenderer.send.apply(ipcRenderer, ['ELECTRON_BROWSER_ASYNC_CALL_TO_GUEST_VIEW', null, internal.guestInstanceId, m].concat(args))
+      ipcRenderer.send.apply(ipcRenderer, ['ELECTRON_BROWSER_ASYNC_CALL_TO_GUEST_VIEW', null, internal.guestInstanceId, m].concat(args))
     }
   }
   for (j = 0, len1 = nonblockMethods.length; j < len1; j++) {
@@ -460,7 +458,7 @@ var registerWebViewElement = function () {
   delete proto.createdCallback
   delete proto.attachedCallback
   delete proto.detachedCallback
-  return delete proto.attributeChangedCallback
+  delete proto.attributeChangedCallback
 }
 
 var useCapture = true
@@ -471,7 +469,7 @@ var listener = function (event) {
   }
   registerBrowserPluginElement()
   registerWebViewElement()
-  return window.removeEventListener(event.type, listener, useCapture)
+  window.removeEventListener(event.type, listener, useCapture)
 }
 
 window.addEventListener('readystatechange', listener, true)