From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Cheng Zhao Date: Thu, 20 Sep 2018 17:48:49 -0700 Subject: mas: avoid usage of NSAccessibilityRemoteUIElement According to ccameron: NSAccessibilityRemoteUIElement is unnecessary for Electron's use-case. We use it for progressive web apps (where the AXTree is in the browser process, but macOS needs to think it's coming from the PWA process). I think it can just be chopped out -- if there are any side-effects, we should be able to work around them. diff --git a/components/remote_cocoa/app_shim/application_bridge.mm b/components/remote_cocoa/app_shim/application_bridge.mm index c8ba6f3da89d7d370032dd964c64a327b2e2484e..f9dde6d0a369a2691bac1a1fe1e79c21632abba3 100644 --- a/components/remote_cocoa/app_shim/application_bridge.mm +++ b/components/remote_cocoa/app_shim/application_bridge.mm @@ -50,6 +50,7 @@ // NativeWidgetNSWindowHostHelper: id GetNativeViewAccessible() override { +#ifndef MAS_BUILD if (!remote_accessibility_element_) { int64_t browser_pid = 0; std::vector element_token; @@ -60,6 +61,9 @@ id GetNativeViewAccessible() override { ui::RemoteAccessibility::GetRemoteElementFromToken(element_token); } return remote_accessibility_element_.get(); +#else + return nil; +#endif } void DispatchKeyEvent(ui::KeyEvent* event) override { bool event_handled = false; @@ -98,8 +102,10 @@ void GetWordAt(const gfx::Point& location_in_content, mojo::AssociatedRemote text_input_host_remote_; std::unique_ptr bridge_; +#ifndef MAS_BUILD base::scoped_nsobject remote_accessibility_element_; +#endif }; } // namespace diff --git a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm index 2cb46846d9c42f8e08c29c39ad8fdbde12bc2ed9..5eb8124be309ad2e55ca01ece23a942b5e1b0101 100644 --- a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm +++ b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm @@ -557,10 +557,12 @@ NSUInteger CountBridgedWindows(NSArray* child_windows) { // this should be treated as an error and caught early. CHECK(bridged_view_); +#ifndef MAS_BUILD // Send the accessibility tokens for the NSView now that it exists. host_->SetRemoteAccessibilityTokens( ui::RemoteAccessibility::GetTokenForLocalElement(window_), ui::RemoteAccessibility::GetTokenForLocalElement(bridged_view_)); +#endif // Beware: This view was briefly removed (in favor of a bare CALayer) in // crrev/c/1236675. The ordering of unassociated layers relative to NSView diff --git a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm index bea5957a47ebc4d75eafa52051be669ac2af9ffd..1f37c096cc4fa40ed26050db1cbdd28aea5dd681 100644 --- a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm +++ b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm @@ -75,8 +75,10 @@ id GetFocusedBrowserAccessibilityElement() override { return nil; } void SetAccessibilityWindow(NSWindow* window) override { +#ifndef MAS_BUILD host_->SetRemoteAccessibilityWindowToken( ui::RemoteAccessibility::GetTokenForLocalElement(window)); +#endif } void ForwardKeyboardEvent(const content::NativeWebKeyboardEvent& key_event, @@ -138,8 +140,10 @@ void SmartMagnify(const blink::WebGestureEvent& web_event) override { mojo::AssociatedRemote host_; std::unique_ptr bridge_; +#ifndef MAS_BUILD base::scoped_nsobject remote_accessibility_element_; +#endif }; } diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h index 7d6b64bc764d16929ecad44dbf0187514a984b76..ed14f9459418e493a3baa6eb3a1265072a46ca76 100644 --- a/content/browser/renderer_host/render_widget_host_view_mac.h +++ b/content/browser/renderer_host/render_widget_host_view_mac.h @@ -49,7 +49,9 @@ class ScopedPasswordInputEnabler; @protocol RenderWidgetHostViewMacDelegate; +#ifndef MAS_BUILD @class NSAccessibilityRemoteUIElement; +#endif @class RenderWidgetHostViewCocoa; namespace content { @@ -667,10 +669,12 @@ class CONTENT_EXPORT RenderWidgetHostViewMac // EnsureSurfaceSynchronizedForWebTest(). uint32_t latest_capture_sequence_number_ = 0u; +#ifndef MAS_BUILD // Remote accessibility objects corresponding to the NSWindow that this is // displayed to the user in. base::scoped_nsobject remote_window_accessible_; +#endif // Used to force the NSApplication's focused accessibility element to be the // content::BrowserAccessibilityCocoa accessibility tree when the NSView for diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm index 72099de3d33e760cfcc56ee475da9c68f9389c07..7bdca5042ada597afe4228bab16489665eb29e24 100644 --- a/content/browser/renderer_host/render_widget_host_view_mac.mm +++ b/content/browser/renderer_host/render_widget_host_view_mac.mm @@ -253,8 +253,10 @@ void RenderWidgetHostViewMac::MigrateNSViewBridge( remote_cocoa::mojom::Application* remote_cocoa_application, uint64_t parent_ns_view_id) { +#ifndef MAS_BUILD // Destroy the previous remote accessibility element. remote_window_accessible_.reset(); +#endif // Disconnect from the previous bridge (this will have the effect of // destroying the associated bridge), and close the receiver (to allow it @@ -1484,8 +1486,10 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback, gfx::NativeViewAccessible RenderWidgetHostViewMac::AccessibilityGetNativeViewAccessibleForWindow() { +#ifndef MAS_BUILD if (remote_window_accessible_) return remote_window_accessible_.get(); +#endif return [GetInProcessNSView() window]; } @@ -1529,9 +1533,11 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback, } void RenderWidgetHostViewMac::SetAccessibilityWindow(NSWindow* window) { +#ifndef MAS_BUILD // When running in-process, just use the NSView's NSWindow as its own // accessibility element. remote_window_accessible_.reset(); +#endif } bool RenderWidgetHostViewMac::SyncIsWidgetForMainFrame( @@ -2030,12 +2036,14 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback, void RenderWidgetHostViewMac::SetRemoteAccessibilityWindowToken( const std::vector& window_token) { +#ifndef MAS_BUILD if (window_token.empty()) { remote_window_accessible_.reset(); } else { remote_window_accessible_ = ui::RemoteAccessibility::GetRemoteElementFromToken(window_token); } +#endif } /////////////////////////////////////////////////////////////////////////////// diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn index 37151bca8d18a3decc418812b6a9ea76eb0c8f3a..3ac702aede00c3eba77751115d6663f561b43c05 100644 --- a/ui/base/BUILD.gn +++ b/ui/base/BUILD.gn @@ -318,6 +318,13 @@ component("base") { ] } + if (is_mas_build) { + sources -= [ + "cocoa/remote_accessibility_api.h", + "cocoa/remote_accessibility_api.mm", + ] + } + if (is_ios) { sources += [ "device_form_factor_ios.mm", diff --git a/ui/base/cocoa/remote_accessibility_api.h b/ui/base/cocoa/remote_accessibility_api.h index e7adfee3210ec723c687adfcc4bee8827ef643e7..25a924a47eeb30d783ef83dbb4896c4bed139a27 100644 --- a/ui/base/cocoa/remote_accessibility_api.h +++ b/ui/base/cocoa/remote_accessibility_api.h @@ -11,6 +11,8 @@ #include "base/component_export.h" #include "base/mac/scoped_nsobject.h" +#ifndef MAS_BUILD + @interface NSAccessibilityRemoteUIElement : NSObject + (void)registerRemoteUIProcessIdentifier:(int)pid; + (NSData*)remoteTokenForLocalUIElement:(id)element; @@ -32,4 +34,6 @@ class COMPONENT_EXPORT(UI_BASE) RemoteAccessibility { } // namespace ui +#endif // MAS_BUILD + #endif // UI_BASE_COCOA_REMOTE_ACCESSIBILITY_API_H_ diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.h b/ui/views/cocoa/native_widget_mac_ns_window_host.h index 0dfd2de62df57def834a3be4349685da3aab72fb..1881932c122daad0d62e3382bd0e221402b6d380 100644 --- a/ui/views/cocoa/native_widget_mac_ns_window_host.h +++ b/ui/views/cocoa/native_widget_mac_ns_window_host.h @@ -29,7 +29,9 @@ #include "ui/views/window/dialog_observer.h" @class NativeWidgetMacNSWindow; +#ifndef MAS_BUILD @class NSAccessibilityRemoteUIElement; +#endif @class NSView; namespace remote_cocoa { @@ -429,11 +431,13 @@ class VIEWS_EXPORT NativeWidgetMacNSWindowHost mojo::AssociatedRemote remote_ns_window_remote_; +#ifndef MAS_BUILD // Remote accessibility objects corresponding to the NSWindow and its root // NSView. base::scoped_nsobject remote_window_accessible_; base::scoped_nsobject remote_view_accessible_; +#endif // Used to force the NSApplication's focused accessibility element to be the // views::Views accessibility tree when the NSView for this is focused. diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.mm b/ui/views/cocoa/native_widget_mac_ns_window_host.mm index 48dd1adb4a74201a866b254cfaec85b996ee7517..5b2a46594a23968034a17fbfed173e1031867df9 100644 --- a/ui/views/cocoa/native_widget_mac_ns_window_host.mm +++ b/ui/views/cocoa/native_widget_mac_ns_window_host.mm @@ -286,14 +286,22 @@ void HandleAccelerator(const ui::Accelerator& accelerator, NativeWidgetMacNSWindowHost::GetNativeViewAccessibleForNSView() const { if (in_process_ns_window_bridge_) return in_process_ns_window_bridge_->ns_view(); +#ifndef MAS_BUILD return remote_view_accessible_.get(); +#else + return nullptr; +#endif } gfx::NativeViewAccessible NativeWidgetMacNSWindowHost::GetNativeViewAccessibleForNSWindow() const { if (in_process_ns_window_bridge_) return in_process_ns_window_bridge_->ns_window(); +#ifndef MAS_BUILD return remote_window_accessible_.get(); +#else + return nullptr; +#endif } remote_cocoa::mojom::NativeWidgetNSWindow* @@ -1206,6 +1214,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator, void NativeWidgetMacNSWindowHost::SetRemoteAccessibilityTokens( const std::vector& window_token, const std::vector& view_token) { +#ifndef MAS_BUILD remote_window_accessible_ = ui::RemoteAccessibility::GetRemoteElementFromToken(window_token); remote_view_accessible_ = @@ -1213,14 +1222,17 @@ void HandleAccelerator(const ui::Accelerator& accelerator, [remote_view_accessible_ setWindowUIElement:remote_window_accessible_.get()]; [remote_view_accessible_ setTopLevelUIElement:remote_window_accessible_.get()]; +#endif } bool NativeWidgetMacNSWindowHost::GetRootViewAccessibilityToken( int64_t* pid, std::vector* token) { +#ifndef MAS_BUILD *pid = getpid(); id element_id = GetNativeViewAccessible(); *token = ui::RemoteAccessibility::GetTokenForLocalElement(element_id); +#endif return true; }