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electron/patches/chromium/mas_disable_remote_accessibility.patch
electron-roller[bot] f8c7408279 chore: bump chromium to 100.0.4896.56 (18-x-y) (#33475) 
* chore: bump chromium in DEPS to 100.0.4896.56

* chore: update patches

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>
2022-03-28 17:09:35 -05:00

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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 9734fb620a9a4010083af41a9e5cea038556eef5..05c95fb9b15f5ccbfecaee29d360dd27bf42f086 100644
--- a/components/remote_cocoa/app_shim/application_bridge.mm
+++ b/components/remote_cocoa/app_shim/application_bridge.mm
@@ -51,6 +51,7 @@
// NativeWidgetNSWindowHostHelper:
id GetNativeViewAccessible() override {
+#ifndef MAS_BUILD
if (!remote_accessibility_element_) {
int64_t browser_pid = 0;
std::vector<uint8_t> element_token;
@@ -61,6 +62,9 @@ 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;
@@ -99,8 +103,10 @@ 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 cb82b91eb2e62453bcf2e3dd47f1b44d927e37d9..a35a14928d63a25284768de2ef67f2de2bedd133 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
@@ -561,10 +561,12 @@ 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 2cd40c288f42937688e4f846a002779158ada68f..f4c7bb0ab75835bfdbd100ce852646bf77817c9e 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
@@ -73,8 +73,10 @@ 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,
@@ -136,8 +138,10 @@ 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
};
}
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 80d639b4a9eb7fa9265da4977782d125b72db719..5f82a49f6336cf89c8d404f8aef7b103709c95e9 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 {
@@ -665,10 +667,12 @@ 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 09ada3b859e1862cbf365960422871a56af54983..58002d37ba340f84f47e2522c0d7bf7c1a64c5d2 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
@@ -1498,8 +1500,10 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
gfx::NativeViewAccessible
RenderWidgetHostViewMac::AccessibilityGetNativeViewAccessibleForWindow() {
+#ifndef MAS_BUILD
if (remote_window_accessible_)
return remote_window_accessible_.get();
+#endif
return [GetInProcessNSView() window];
}
@@ -1543,9 +1547,11 @@ 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(
@@ -2038,12 +2044,14 @@ 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 0d7d47d1260d47959b0fa9f116a039c8b8307c96..15cc28a9bbc7b33a727e7c172207262902835ccc 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -317,6 +317,13 @@ 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 1964f624abc96c54645d1697b598799cfd9a2a00..30580103974b99dcaed2adb0b460b1af17658927 100644
--- a/ui/views/cocoa/native_widget_mac_ns_window_host.h
+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.h
@@ -31,7 +31,9 @@
#include "ui/views/window/dialog_observer.h"
@class NativeWidgetMacNSWindow;
+#ifndef MAS_BUILD
@class NSAccessibilityRemoteUIElement;
+#endif
@class NSView;
namespace remote_cocoa {
@@ -445,11 +447,13 @@ 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 b77478d96caba7e94c198e9cc8cdd7a6b78e6b25..79af41886c66b51219b69282db17497c5af702d5 100644
--- a/ui/views/cocoa/native_widget_mac_ns_window_host.mm
+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
@@ -294,14 +294,22 @@ 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*
@@ -1275,6 +1283,7 @@ 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_ =
@@ -1282,14 +1291,17 @@ 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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