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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/aura/accessibility/automation_manager_aura.h"
#include "base/no_destructor.h"
#include "extensions/browser/api/automation_internal/automation_event_router.h"
#include "ui/aura/env.h"
#include "ui/aura/window_tree_host.h"
#include "ui/display/screen.h"
#include "ui/views/accessibility/ax_aura_obj_wrapper.h"
#include "ui/views/accessibility/ax_root_obj_wrapper.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/public/activation_client.h"
// static
AutomationManagerAura* AutomationManagerAura::GetInstance() {
static base::NoDestructor<AutomationManagerAura> instance;
return instance.get();
}
AutomationManagerAura::AutomationManagerAura() = default;
AutomationManagerAura::~AutomationManagerAura() = default;
void AutomationManagerAura::Enable() {
views::ViewsAXManager::Enable();
if (!automation_event_router_observer_.IsObserving()) {
automation_event_router_observer_.Observe(
extensions::AutomationEventRouter::GetInstance());
}
}
void AutomationManagerAura::Disable() {
views::ViewsAXManager::Disable();
if (GetTreeSource() && automation_event_router_interface_) {
automation_event_router_interface_->DispatchTreeDestroyedEvent(
ax_tree_id());
}
if (automation_event_router_observer_.IsObserving()) {
automation_event_router_observer_.Reset();
}
}
void AutomationManagerAura::HandleEvent(ax::mojom::Event event_type,
bool from_user) {
if (!is_enabled() || !GetTreeSource() || !GetTreeSource()->GetRoot()) {
return;
}
PostEvent(GetTreeSource()->GetRoot()->GetUniqueId(), event_type,
/*action_request_id=*/-1, from_user);
}
void AutomationManagerAura::AllAutomationExtensionsGone() {
Disable();
}
void AutomationManagerAura::ExtensionListenerAdded() {
if (!is_enabled()) {
return;
}
Reset(/*reset_serializer=*/true);
}
void AutomationManagerAura::DispatchAccessibilityEvents(
const ui::AXTreeID& tree_id,
std::vector<ui::AXTreeUpdate> tree_updates,
const gfx::Point& mouse_location,
std::vector<ui::AXEvent> events) {
if (!is_enabled() || !automation_event_router_interface_) {
return;
}
automation_event_router_interface_->DispatchAccessibilityEvents(
tree_id, std::move(tree_updates), mouse_location, std::move(events));
}
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