| // 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/debug/crash_logging.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/buildflags.h" |
| |
| namespace ui { |
| |
| // static |
| base::LazyInstance<base::ObserverList<AXModeObserver>::Unchecked>::Leaky |
| AXPlatformNode::ax_mode_observers_ = LAZY_INSTANCE_INITIALIZER; |
| |
| // static |
| base::LazyInstance<AXPlatformNode::NativeWindowHandlerCallback>::Leaky |
| AXPlatformNode::native_window_handler_ = LAZY_INSTANCE_INITIALIZER; |
| |
| // static |
| AXMode AXPlatformNode::ax_mode_; |
| |
| // static |
| gfx::NativeViewAccessible AXPlatformNode::popup_focus_override_ = nullptr; |
| |
| // 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()) << "|GetUniqueId| must be called after |Init|."; |
| return GetDelegate() ? GetDelegate()->GetUniqueId().Get() : -1; |
| } |
| |
| std::string AXPlatformNode::ToString() { |
| return GetDelegate() ? GetDelegate()->ToString() : "No delegate"; |
| } |
| |
| std::string AXPlatformNode::SubtreeToString() { |
| return GetDelegate() ? GetDelegate()->SubtreeToString() : "No delegate"; |
| } |
| |
| std::ostream& operator<<(std::ostream& stream, AXPlatformNode& node) { |
| return stream << node.ToString(); |
| } |
| |
| // 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) { |
| // Note: this is only called on Windows. |
| AXMode new_ax_mode(ax_mode_); |
| new_ax_mode |= mode_flags; |
| |
| if (new_ax_mode == ax_mode_) |
| return; // No change. |
| |
| ax_mode_ = new_ax_mode; |
| for (auto& observer : ax_mode_observers_.Get()) |
| observer.OnAXModeAdded(mode_flags); |
| } |
| |
| // static |
| void AXPlatformNode::SetPopupFocusOverride( |
| gfx::NativeViewAccessible popup_focus_override) { |
| popup_focus_override_ = popup_focus_override; |
| } |
| |
| // static |
| gfx::NativeViewAccessible AXPlatformNode::GetPopupFocusOverride() { |
| return popup_focus_override_; |
| } |
| |
| } // namespace ui |