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electron/patches/chromium/mas_disable_remote_accessibility.patch
electron-roller[bot] b8261f1591
chore: bump chromium to 93.0.4550.0 (main) (#29751)
2021-06-22 12:17:16 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
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 9ddda9116e7284cbccde8a51e23ad7560dd06367..e846091ad99b0154636489e53491209ff3cbfaaa 100644
--- a/components/remote_cocoa/app_shim/application_bridge.mm
+++ b/components/remote_cocoa/app_shim/application_bridge.mm
@@ -49,6 +49,7 @@
// NativeWidgetNSWindowHostHelper:
id GetNativeViewAccessible() override {
+#ifndef MAS_BUILD
if (!remote_accessibility_element_) {
int64_t browser_pid = 0;
std::vector<uint8_t> element_token;
@@ -59,6 +60,9 @@ 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;
@@ -96,8 +100,10 @@ void GetWordAt(const gfx::Point& location_in_content,
mojo::AssociatedRemote<mojom::TextInputHost> text_input_host_remote_;
std::unique_ptr<NativeWidgetNSWindowBridge> bridge_;
+#ifndef MAS_BUILD
base::scoped_nsobject<NSAccessibilityRemoteUIElement>
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 2ccec9187c4ed3920f3df3f78994a18f797e4f49..a0598f6c928fcffe0c3f82d5c390f8a4fc7a1d90 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
@@ -559,10 +559,12 @@ 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 c3a9fbf0f9d2b80c1de42a22ad094a286f0b559b..02493d4b62c98a3aebd3e460c459218a4dc4ea8e 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
@@ -70,8 +70,10 @@ 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,
@@ -133,8 +135,10 @@ void SmartMagnify(const blink::WebGestureEvent& web_event) override {
mojo::AssociatedRemote<mojom::RenderWidgetHostNSViewHost> host_;
std::unique_ptr<RenderWidgetHostNSViewBridge> bridge_;
+#ifndef MAS_BUILD
base::scoped_nsobject<NSAccessibilityRemoteUIElement>
remote_accessibility_element_;
+#endif
DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostNSViewBridgeOwner);
};
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 ffa437e300635290525658642cc83882fd08231a..7616391e80408ce11817c078c0ad280ecda4b4e7 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.h
+++ b/content/browser/renderer_host/render_widget_host_view_mac.h
@@ -47,7 +47,9 @@ class ScopedPasswordInputEnabler;
@protocol RenderWidgetHostViewMacDelegate;
+#ifndef MAS_BUILD
@class NSAccessibilityRemoteUIElement;
+#endif
@class RenderWidgetHostViewCocoa;
namespace content {
@@ -651,10 +653,12 @@ 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<NSAccessibilityRemoteUIElement>
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 9582f6c48320560362903787f7f086c5c3d274e7..e4dd3f09ffb460c6c28b74d4fb13c461f4553f5c 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -240,8 +240,10 @@
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
@@ -1438,8 +1440,10 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
gfx::NativeViewAccessible
RenderWidgetHostViewMac::AccessibilityGetNativeViewAccessibleForWindow() {
+#ifndef MAS_BUILD
if (remote_window_accessible_)
return remote_window_accessible_.get();
+#endif
return [GetInProcessNSView() window];
}
@@ -1483,9 +1487,11 @@ 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(
@@ -1979,12 +1985,14 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
void RenderWidgetHostViewMac::SetRemoteAccessibilityWindowToken(
const std::vector<uint8_t>& 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 9155fa3d991649b6883f378d9fe3833b366ce7ec..6411e43a265dfa7c563ac6c26a0896d8a8e646f2 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -320,6 +320,13 @@ 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 9f5543d22e7a72dc7ca031e04434279b5066215c..2eaaa54778f1f5d450389967ae77c5e4d578eb04 100644
--- a/ui/views/cocoa/native_widget_mac_ns_window_host.h
+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.h
@@ -30,7 +30,9 @@
#include "ui/views/window/dialog_observer.h"
@class NativeWidgetMacNSWindow;
+#ifndef MAS_BUILD
@class NSAccessibilityRemoteUIElement;
+#endif
@class NSView;
namespace remote_cocoa {
@@ -420,11 +422,13 @@ class VIEWS_EXPORT NativeWidgetMacNSWindowHost
mojo::AssociatedRemote<remote_cocoa::mojom::NativeWidgetNSWindow>
remote_ns_window_remote_;
+#ifndef MAS_BUILD
// Remote accessibility objects corresponding to the NSWindow and its root
// NSView.
base::scoped_nsobject<NSAccessibilityRemoteUIElement>
remote_window_accessible_;
base::scoped_nsobject<NSAccessibilityRemoteUIElement> 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 a756f7b856196606c1cd4fc26e8a907d9891d36c..2dce88094b9a697bd7f4d85a69294a098a2dd427 100644
--- a/ui/views/cocoa/native_widget_mac_ns_window_host.mm
+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
@@ -285,14 +285,22 @@ 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*
@@ -1197,6 +1205,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
void NativeWidgetMacNSWindowHost::SetRemoteAccessibilityTokens(
const std::vector<uint8_t>& window_token,
const std::vector<uint8_t>& view_token) {
+#ifndef MAS_BUILD
remote_window_accessible_ =
ui::RemoteAccessibility::GetRemoteElementFromToken(window_token);
remote_view_accessible_ =
@@ -1204,14 +1213,17 @@ 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<uint8_t>* token) {
+#ifndef MAS_BUILD
*pid = getpid();
id element_id = GetNativeViewAccessible();
*token = ui::RemoteAccessibility::GetTokenForLocalElement(element_id);
+#endif
return true;
}
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