| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/accessibility/platform/ax_platform_node.h" |
| |
| #include "base/containers/hash_tables.h" |
| #include "base/lazy_instance.h" |
| #include "build/build_config.h" |
| #include "ui/accessibility/ax_node_data.h" |
| #include "ui/accessibility/platform/ax_platform_node_delegate.h" |
| #include "ui/base/ui_features.h" |
| |
| namespace ui { |
| |
| // static |
| base::LazyInstance<base::ObserverList<AXModeObserver>>::Leaky |
| AXPlatformNode::ax_mode_observers_ = LAZY_INSTANCE_INITIALIZER; |
| |
| // static |
| base::LazyInstance<AXPlatformNode::NativeWindowHandlerCallback>::Leaky |
| AXPlatformNode::native_window_handler_ = LAZY_INSTANCE_INITIALIZER; |
| |
| // static |
| AXPlatformNode* AXPlatformNode::FromNativeWindow( |
| gfx::NativeWindow native_window) { |
| if (native_window_handler_.Get()) |
| return native_window_handler_.Get().Run(native_window); |
| return nullptr; |
| } |
| |
| #if !BUILDFLAG_INTERNAL_HAS_NATIVE_ACCESSIBILITY() |
| // static |
| AXPlatformNode* AXPlatformNode::FromNativeViewAccessible( |
| gfx::NativeViewAccessible accessible) { |
| return nullptr; |
| } |
| #endif // !BUILDFLAG_INTERNAL_HAS_NATIVE_ACCESSIBILITY() |
| |
| // static |
| void AXPlatformNode::RegisterNativeWindowHandler( |
| AXPlatformNode::NativeWindowHandlerCallback handler) { |
| native_window_handler_.Get() = handler; |
| } |
| |
| AXPlatformNode::AXPlatformNode() {} |
| |
| AXPlatformNode::~AXPlatformNode() { |
| } |
| |
| void AXPlatformNode::Destroy() { |
| } |
| |
| int32_t AXPlatformNode::GetUniqueId() const { |
| DCHECK(GetDelegate()); // Must be called after Init() |
| return GetDelegate() ? GetDelegate()->GetUniqueId().Get() : -1; |
| } |
| |
| // static |
| void AXPlatformNode::AddAXModeObserver(AXModeObserver* observer) { |
| ax_mode_observers_.Get().AddObserver(observer); |
| } |
| |
| // static |
| void AXPlatformNode::RemoveAXModeObserver(AXModeObserver* observer) { |
| ax_mode_observers_.Get().RemoveObserver(observer); |
| } |
| |
| // static |
| void AXPlatformNode::NotifyAddAXModeFlags(AXMode mode_flags) { |
| for (auto& observer : ax_mode_observers_.Get()) |
| observer.OnAXModeAdded(mode_flags); |
| } |
| |
| } // namespace ui |