chore: rename atom -> electron (#21986)

shell/browser/electron_browser_main_parts_mac.mm

@@ -0,0 +1,74 @@
+// Copyright (c) 2013 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/browser/electron_browser_main_parts.h"
+
+#include "base/mac/bundle_locations.h"
+#include "base/mac/foundation_util.h"
+#include "base/path_service.h"
+#include "shell/browser/electron_paths.h"
+#import "shell/browser/mac/electron_application.h"
+#include "shell/browser/mac/electron_application_delegate.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+namespace electron {
+
+void ElectronBrowserMainParts::PreMainMessageLoopStart() {
+  // Set our own application delegate.
+  ElectronApplicationDelegate* delegate =
+      [[ElectronApplicationDelegate alloc] init];
+  [NSApp setDelegate:delegate];
+
+  PreMainMessageLoopStartCommon();
+
+  // Prevent Cocoa from turning command-line arguments into
+  // |-application:openFiles:|, since we already handle them directly.
+  [[NSUserDefaults standardUserDefaults]
+      setObject:@"NO"
+         forKey:@"NSTreatUnknownArgumentsAsOpen"];
+}
+
+void ElectronBrowserMainParts::FreeAppDelegate() {
+  [[NSApp delegate] release];
+  [NSApp setDelegate:nil];
+}
+
+void ElectronBrowserMainParts::RegisterURLHandler() {
+  [[ElectronApplication sharedApplication] registerURLHandler];
+}
+
+// Replicates NSApplicationMain, but doesn't start a run loop.
+void ElectronBrowserMainParts::InitializeMainNib() {
+  auto infoDictionary = base::mac::OuterBundle().infoDictionary;
+
+  auto principalClass =
+      NSClassFromString([infoDictionary objectForKey:@"NSPrincipalClass"]);
+  auto application = [principalClass sharedApplication];
+
+  NSString* mainNibName = [infoDictionary objectForKey:@"NSMainNibFile"];
+
+  NSNib* mainNib;
+
+  @try {
+    mainNib = [[NSNib alloc] initWithNibNamed:mainNibName
+                                       bundle:base::mac::FrameworkBundle()];
+    // Handle failure of initWithNibNamed on SMB shares
+    // TODO(codebytere): Remove when
+    // https://bugs.chromium.org/p/chromium/issues/detail?id=932935 is fixed
+  } @catch (NSException* exception) {
+    NSString* nibPath =
+        [NSString stringWithFormat:@"Resources/%@.nib", mainNibName];
+    nibPath = [base::mac::FrameworkBundle().bundlePath
+        stringByAppendingPathComponent:nibPath];
+
+    NSData* data = [NSData dataWithContentsOfFile:nibPath];
+    mainNib = [[NSNib alloc] initWithNibData:data
+                                      bundle:base::mac::FrameworkBundle()];
+  }
+
+  [mainNib instantiateWithOwner:application topLevelObjects:nil];
+  [mainNib release];
+}
+
+}  // namespace electron