feat: add app.isHardwareAccelerationEnabled() (#48679)

* feat: add app.isHardwareAccelerationEnabled()

Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>

* chore: address review feedback

Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>

---------

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>

docs/api/app.md

@@ -1212,6 +1212,13 @@ Disables hardware acceleration for current app.
 
 This method can only be called before app is ready.
 
+### `app.isHardwareAccelerationEnabled()`
+
+Returns `boolean` - whether hardware acceleration is currently disabled.
+
+ > [!NOTE]
+ > This information is only usable after the `gpu-info-update` event is emitted.
+
 ### `app.disableDomainBlockingFor3DAPIs()`
 
 By default, Chromium disables 3D APIs (e.g. WebGL) until restart on a per

shell/browser/api/electron_api_app.cc

@@ -1134,6 +1134,10 @@ void App::DisableHardwareAcceleration(gin_helper::ErrorThrower thrower) {
         "before app is ready");
     return;
   }
+
+  // If the GpuDataManager is already initialized, disable hardware
+  // acceleration immediately. Otherwise, set a flag to disable it in
+  // OnPreCreateThreads().
   if (content::GpuDataManager::Initialized()) {
     content::GpuDataManager::GetInstance()->DisableHardwareAcceleration();
   } else {
@@ -1141,6 +1145,13 @@ void App::DisableHardwareAcceleration(gin_helper::ErrorThrower thrower) {
   }
 }
 
+bool App::IsHardwareAccelerationEnabled() {
+  if (content::GpuDataManager::Initialized())
+    return content::GpuDataManager::GetInstance()
+        ->HardwareAccelerationEnabled();
+  return !disable_hw_acceleration_;
+}
+
 void App::DisableDomainBlockingFor3DAPIs(gin_helper::ErrorThrower thrower) {
   if (Browser::Get()->is_ready()) {
     thrower.ThrowError(
@@ -1908,6 +1919,8 @@ gin::ObjectTemplateBuilder App::GetObjectTemplateBuilder(v8::Isolate* isolate) {
                  &App::SetAccessibilitySupportEnabled)
       .SetMethod("disableHardwareAcceleration",
                  &App::DisableHardwareAcceleration)
+      .SetMethod("isHardwareAccelerationEnabled",
+                 &App::IsHardwareAccelerationEnabled)
       .SetMethod("disableDomainBlockingFor3DAPIs",
                  &App::DisableDomainBlockingFor3DAPIs)
       .SetMethod("getFileIcon", &App::GetFileIcon)

shell/browser/api/electron_api_app.h

@@ -209,6 +209,7 @@ class App final : public ElectronBrowserClient::Delegate,
   void ReleaseSingleInstanceLock();
   bool Relaunch(gin::Arguments* args);
   void DisableHardwareAcceleration(gin_helper::ErrorThrower thrower);
+  bool IsHardwareAccelerationEnabled();
   void DisableDomainBlockingFor3DAPIs(gin_helper::ErrorThrower thrower);
   bool IsAccessibilitySupportEnabled();
   v8::Local<v8::Value> GetAccessibilitySupportFeatures();

spec/api-app-spec.ts

@@ -149,6 +149,12 @@ describe('app module', () => {
     });
   });
 
+  describe('app.isHardwareAccelerationEnabled()', () => {
+    it('should be a boolean', () => {
+      expect(app.isHardwareAccelerationEnabled()).to.be.a('boolean');
+    });
+  });
+
   describe('app.isPackaged', () => {
     it('should be false during tests', () => {
       expect(app.isPackaged).to.equal(false);