track async api requests

atom/browser/api/lib/web-contents.js

@@ -11,6 +11,8 @@ const debuggerBinding = process.atomBinding('debugger');
 
 let  slice = [].slice;
 let nextId = 0;
+
+// Map of requestId and response callback.
 let responseCallback = {};
 
 let getNextId = function() {
@@ -59,13 +61,16 @@ let PDFPageSize = {
 
 // Following methods are mapped to webFrame.
 const webFrameMethods = [
-  'executeJavaScript',
   'insertText',
   'setZoomFactor',
   'setZoomLevel',
   'setZoomLevelLimits'
 ];
 
+const asyncWebFrameMethods = [
+  'executeJavaScript',
+];
+
 let wrapWebContents = function(webContents) {
   // webContents is an EventEmitter.
   var controller, method, name, ref1;
@@ -107,25 +112,35 @@ let wrapWebContents = function(webContents) {
     };
   }
 
+  for (let method of asyncWebFrameMethods) {
+    webContents[method] = function() {
+      let args = Array.prototype.slice.call(arguments);
+      this.send('ELECTRON_INTERNAL_RENDERER_ASYNC_WEB_FRAME_METHOD', method, args);
+    };
+  }
+
   // Make sure webContents.executeJavaScript would run the code only when the
   // webContents has been loaded.
   const executeJavaScript = webContents.executeJavaScript;
   webContents.executeJavaScript = function(code, hasUserGesture, callback) {
+    let requestId = getNextId();
     if (typeof hasUserGesture === "function") {
       callback = hasUserGesture;
       hasUserGesture = false;
     }
     if (callback !== null)
-      responseCallback["executeJavaScript"] = callback;
+      responseCallback[requestId] = callback;
     if (this.getURL() && !this.isLoading())
-      return executeJavaScript.call(this, code, hasUserGesture);
+      return executeJavaScript.call(this, requestId, code, hasUserGesture);
     else
-      return this.once('did-finish-load', executeJavaScript.bind(this, code, hasUserGesture));
+      return this.once('did-finish-load', executeJavaScript.bind(this, requestId, code, hasUserGesture));
   };
 
-  ipcMain.on('ELECTRON_INTERNAL_RENDERER_WEB_FRAME_RESPONSE', function(event, method, result) {
-    if (responseCallback[method])
-      responseCallback[method].apply(null, [result]);
+  ipcMain.on('ELECTRON_INTERNAL_RENDERER_ASYNC_WEB_FRAME_RESPONSE', function(event, id, result) {
+    if (responseCallback[id]) {
+      responseCallback[id].apply(null, [result]);
+      delete responseCallback[id];
+    }
   });
 
   // Dispatch IPC messages to the ipc module.

atom/common/native_mate_converters/blink_converter.h

@@ -6,7 +6,6 @@
 #define ATOM_COMMON_NATIVE_MATE_CONVERTERS_BLINK_CONVERTER_H_
 
 #include "native_mate/converter.h"
-#include "third_party/WebKit/public/platform/WebVector.h"
 
 namespace blink {
 class WebInputEvent;
@@ -88,19 +87,6 @@ struct Converter<blink::WebFindOptions> {
                      blink::WebFindOptions* out);
 };
 
-template<typename T>
-struct Converter<blink::WebVector<T> > {
-  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
-                                   const blink::WebVector<T>& val) {
-    v8::Local<v8::Array> result(
-        MATE_ARRAY_NEW(isolate, static_cast<int>(val.size())));
-    for (size_t i = 0; i < val.size(); ++i) {
-      result->Set(static_cast<int>(i), Converter<T>::ToV8(isolate, val[i]));
-    }
-    return result;
-  }
-};
-
 }  // namespace mate
 
 #endif  // ATOM_COMMON_NATIVE_MATE_CONVERTERS_BLINK_CONVERTER_H_

atom/renderer/api/atom_api_web_frame.cc

@@ -8,7 +8,6 @@
 #include "atom/common/native_mate_converters/callback.h"
 #include "atom/common/native_mate_converters/gfx_converter.h"
 #include "atom/common/native_mate_converters/string16_converter.h"
-#include "atom/common/native_mate_converters/blink_converter.h"
 #include "atom/renderer/api/atom_api_spell_check_client.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
@@ -33,7 +32,7 @@ class ScriptExecutionCallback : public blink::WebScriptExecutionCallback {
  public:
   using CompletionCallback =
       base::Callback<void(
-          const blink::WebVector<v8::Local<v8::Value>>& result)>;
+          const v8::Local<v8::Value>& result)>;
 
   explicit ScriptExecutionCallback(const CompletionCallback& callback)
       : callback_(callback) {}
@@ -42,7 +41,8 @@ class ScriptExecutionCallback : public blink::WebScriptExecutionCallback {
   void completed(
       const blink::WebVector<v8::Local<v8::Value>>& result) override {
     if (!callback_.is_null())
-      callback_.Run(result);
+      // Right now only single results per frame is supported.
+      callback_.Run(result[0]);
     delete this;
   }
 

atom/renderer/lib/init.js

@@ -32,17 +32,16 @@ v8Util.setHiddenValue(global, 'ipc', new events.EventEmitter);
 const electron = require('electron');
 
 // Call webFrame method.
-const asyncWebFrameMethods = [
-  'executeJavaScript'
-];
-
 electron.ipcRenderer.on('ELECTRON_INTERNAL_RENDERER_WEB_FRAME_METHOD', (event, method, args) => {
-  if (asyncWebFrameMethods.includes(method)) {
+  electron.webFrame[method].apply(electron.webFrame, args);
+});
+
+electron.ipcRenderer.on('ELECTRON_INTERNAL_RENDERER_ASYNC_WEB_FRAME_METHOD', (event, method, args) => {
+  let requestId = args.shift();
   const responseCallback = function(result) {
-      event.sender.send('ELECTRON_INTERNAL_RENDERER_WEB_FRAME_RESPONSE', method, result);
+    event.sender.send('ELECTRON_INTERNAL_RENDERER_ASYNC_WEB_FRAME_RESPONSE', requestId, result);
   };
   args.push(responseCallback);
-  }
   electron.webFrame[method].apply(electron.webFrame, args);
 });
 

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

@@ -393,14 +393,14 @@ var registerWebViewElement = function() {
   nonblockMethods = [
     'insertCSS',
     'send',
-    'sendInputEvent'
+    'sendInputEvent',
   ];
   webFrameMethods = [
     'executeJavaScript',
     'insertText',
     'setZoomFactor',
     'setZoomLevel',
-    'setZoomLevelLimits'
+    'setZoomLevelLimits',
   ];
 
   // Forward proto.foo* method calls to WebViewImpl.foo*.

docs/api/web-contents.md

@@ -430,7 +430,7 @@ Injects CSS into the current web page.
 * `code` String
 * `userGesture` Boolean (optional)
 * `callback` Function (optional) - Called after script has been executed.
-  * `result` Array
+  * `result`
 
 Evaluates `code` in page.
 

docs/api/web-view-tag.md

@@ -284,7 +284,7 @@ Injects CSS into the guest page.
 * `code` String
 * `userGesture` Boolean - Default `false`.
 * `callback` Function (optional) - Called after script has been executed.
-  * `result` Array
+  * `result`
 
 Evaluates `code` in page. If `userGesture` is set, it will create the user
 gesture context in the page. HTML APIs like `requestFullScreen`, which require

spec/webview-spec.js

@@ -572,7 +572,7 @@ describe('<webview> tag', function() {
       var listener = function() {
         var jsScript = "'4'+2";
         webview.executeJavaScript(jsScript, false, function(result) {
-          assert.equal(result[0], '42');
+          assert.equal(result, '42');
           done();
         });
         webview.removeEventListener('did-finish-load', listener);