🐛 add isDevToolsFocused to WebContents to fix #3928, add devtools-[focused|open|close] events to WebView to fix #3783.

atom/browser/api/atom_api_web_contents.cc

@@ -780,6 +780,13 @@ bool WebContents::IsDevToolsOpened() {
   return managed_web_contents()->IsDevToolsViewShowing();
 }
 
+bool WebContents::IsDevToolsFocused() {
+  if (type_ == REMOTE)
+    return false;
+    
+  return managed_web_contents()->GetView()->IsDevToolsViewFocused();
+}
+
 void WebContents::EnableDeviceEmulation(
     const blink::WebDeviceEmulationParams& params) {
   if (type_ == REMOTE)
@@ -1080,6 +1087,7 @@ void WebContents::BuildPrototype(v8::Isolate* isolate,
       .SetMethod("openDevTools", &WebContents::OpenDevTools)
       .SetMethod("closeDevTools", &WebContents::CloseDevTools)
       .SetMethod("isDevToolsOpened", &WebContents::IsDevToolsOpened)
+      .SetMethod("isDevToolsFocused", &WebContents::IsDevToolsFocused)
       .SetMethod("enableDeviceEmulation",
                  &WebContents::EnableDeviceEmulation)
       .SetMethod("disableDeviceEmulation",

atom/browser/api/atom_api_web_contents.h

@@ -79,6 +79,7 @@ class WebContents : public mate::TrackableObject<WebContents>,
   void OpenDevTools(mate::Arguments* args);
   void CloseDevTools();
   bool IsDevToolsOpened();
+  bool IsDevToolsFocused();
   void ToggleDevTools();
   void EnableDeviceEmulation(const blink::WebDeviceEmulationParams& params);
   void DisableDeviceEmulation();

atom/browser/api/lib/browser-window.coffee

@@ -83,6 +83,7 @@ BrowserWindow::send = -> @webContents.send.apply @webContents, arguments
 BrowserWindow::openDevTools = -> @webContents.openDevTools.apply @webContents, arguments
 BrowserWindow::closeDevTools = -> @webContents.closeDevTools()
 BrowserWindow::isDevToolsOpened = -> @webContents.isDevToolsOpened()
+BrowserWindow::isDevToolsFocused = -> @webContents.isDevToolsFocused()
 BrowserWindow::toggleDevTools = -> @webContents.toggleDevTools()
 BrowserWindow::inspectElement = -> @webContents.inspectElement.apply @webContents, arguments
 BrowserWindow::inspectServiceWorker = -> @webContents.inspectServiceWorker()

atom/browser/lib/guest-view-manager.coffee

@@ -13,6 +13,9 @@ supportedWebViewEvents = [
   'did-get-redirect-request'
   'dom-ready'
   'console-message'
+  'devtools-opened'
+  'devtools-closed'
+  'devtools-focused'
   'new-window'
   'close'
   'crashed'

atom/renderer/lib/web-view/guest-view-internal.coffee

@@ -15,6 +15,9 @@ WEB_VIEW_EVENTS =
   'did-get-redirect-request': ['oldURL', 'newURL', 'isMainFrame']
   'dom-ready': []
   'console-message': ['level', 'message', 'line', 'sourceId']
+  'devtools-opened': []
+  'devtools-closed': []
+  'devtools-focused': []
   'new-window': ['url', 'frameName', 'disposition', 'options']
   'close': []
   'crashed': []