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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/platform/browser_accessibility_auralinux.h"
#include "ui/accessibility/platform/browser_accessibility_manager.h"
#include "ui/accessibility/platform/browser_accessibility_manager_auralinux.h"
#include "ui/accessibility/platform/ax_platform_node_auralinux.h"
namespace ui {
BrowserAccessibilityAuraLinux* ToBrowserAccessibilityAuraLinux(
BrowserAccessibility* obj) {
return static_cast<BrowserAccessibilityAuraLinux*>(obj);
}
// static
std::unique_ptr<BrowserAccessibility> BrowserAccessibility::Create(
BrowserAccessibilityManager* manager,
AXNode* node) {
return std::make_unique<BrowserAccessibilityAuraLinux>(manager, node);
}
BrowserAccessibilityAuraLinux::BrowserAccessibilityAuraLinux(
BrowserAccessibilityManager* manager,
AXNode* node)
: BrowserAccessibility(manager, node),
platform_node_(AXPlatformNode::Create(*this)) {}
BrowserAccessibilityAuraLinux::~BrowserAccessibilityAuraLinux() = default;
AXPlatformNodeAuraLinux* BrowserAccessibilityAuraLinux::GetNode() const {
return static_cast<AXPlatformNodeAuraLinux*>(platform_node_.get());
}
BrowserAccessibilityAuraLinux*
BrowserAccessibilityAuraLinux::GetExtraAnnouncementNode(
ax::mojom::AriaNotificationPriority priority_property) const {
if (!manager() || !manager()->GetBrowserAccessibilityRoot()) {
return nullptr;
}
const AXNode* root_node = manager()->GetBrowserAccessibilityRoot()->node();
if (!root_node) {
return nullptr;
}
const AXNode* announcement_node =
root_node->GetExtraAnnouncementNode(priority_property);
return ToBrowserAccessibilityAuraLinux(
manager()->GetFromAXNode(announcement_node));
}
bool BrowserAccessibilityAuraLinux::HasExtraAnnouncementNodes() const {
return this == manager_->GetBrowserAccessibilityRoot() && node()->tree() &&
node()->tree()->extra_announcement_nodes();
}
gfx::NativeViewAccessible
BrowserAccessibilityAuraLinux::GetNativeViewAccessible() {
DCHECK(platform_node_);
return platform_node_->GetNativeViewAccessible();
}
void BrowserAccessibilityAuraLinux::UpdatePlatformAttributes() {
GetNode()->UpdateHypertext();
}
void BrowserAccessibilityAuraLinux::OnDataChanged() {
BrowserAccessibility::OnDataChanged();
DCHECK(platform_node_);
static_cast<AXPlatformNodeAuraLinux*>(platform_node_.get())
->EnsureAtkObjectIsValid();
}
size_t BrowserAccessibilityAuraLinux::PlatformChildCount() const {
if (!HasExtraAnnouncementNodes()) {
return BrowserAccessibility::PlatformChildCount();
}
return BrowserAccessibility::PlatformChildCount() +
node()->tree()->extra_announcement_nodes()->Count();
}
BrowserAccessibility* BrowserAccessibilityAuraLinux::PlatformGetChild(
size_t child_index) const {
if (!HasExtraAnnouncementNodes() || child_index < InternalChildCount()) {
return BrowserAccessibility::PlatformGetChild(child_index);
}
if (child_index >= PlatformChildCount()) {
return nullptr;
}
child_index -= BrowserAccessibility::PlatformChildCount();
if (child_index == ExtraAnnouncementNodes::kHighPriorityIndex) {
return manager_->GetFromAXNode(node()->GetExtraAnnouncementNode(
ax::mojom::AriaNotificationPriority::kHigh));
} else if (child_index == ExtraAnnouncementNodes::kNormalPriorityIndex) {
return manager_->GetFromAXNode(node()->GetExtraAnnouncementNode(
ax::mojom::AriaNotificationPriority::kNormal));
}
return nullptr;
}
BrowserAccessibility* BrowserAccessibilityAuraLinux::PlatformGetLastChild()
const {
if (!HasExtraAnnouncementNodes()) {
return BrowserAccessibility::PlatformGetLastChild();
}
CHECK(node()->GetExtraAnnouncementNode(
ax::mojom::AriaNotificationPriority::kNormal));
return manager_->GetFromAXNode(node()->GetExtraAnnouncementNode(
ax::mojom::AriaNotificationPriority::kNormal));
}
BrowserAccessibility* BrowserAccessibilityAuraLinux::PlatformGetNextSibling()
const {
BrowserAccessibility* parent = PlatformGetParent();
size_t next_child_index = node()->GetUnignoredIndexInParent() + 1;
if (!node()->tree()->extra_announcement_nodes() || !parent ||
next_child_index < parent->InternalChildCount()) {
return BrowserAccessibility::PlatformGetNextSibling();
}
// The InternalChildCount() will not include extra announcement nodes, but
// the PlatformChildCount() will. Therefore if the next sibling is at one of
// the extra node indices, we'll need to get it via PlatformGetChild().
if (next_child_index < parent->PlatformChildCount()) {
return parent->PlatformGetChild(next_child_index);
}
return nullptr;
}
BrowserAccessibility*
BrowserAccessibilityAuraLinux::PlatformGetPreviousSibling() const {
BrowserAccessibility* parent = PlatformGetParent();
size_t child_index = node()->GetUnignoredIndexInParent();
if (!node()->tree()->extra_announcement_nodes() || !parent ||
child_index < parent->InternalChildCount()) {
return BrowserAccessibility::PlatformGetPreviousSibling();
}
// The InternalChildCount() will not include extra announcement nodes, but
// the PlatformChildCount() will. Therefore if the previous sibling is at
// one of the extra node indices, we'll need to get it via
// PlatformGetChild().
if (child_index < parent->PlatformChildCount()) {
return parent->PlatformGetChild(child_index - 1);
}
return nullptr;
}
AXPlatformNode* BrowserAccessibilityAuraLinux::GetAXPlatformNode() const {
return GetNode();
}
std::u16string BrowserAccessibilityAuraLinux::GetHypertext() const {
return GetNode()->AXPlatformNodeAuraLinux::GetHypertext();
}
TextAttributeList BrowserAccessibilityAuraLinux::ComputeTextAttributes() const {
return GetNode()->ComputeTextAttributes();
}
void BrowserAccessibilityAuraLinux::SetIsPrimaryWebContentsForWindow() {
manager()
->ToBrowserAccessibilityManagerAuraLinux()
->SetPrimaryWebContentsForWindow(GetId());
}
bool BrowserAccessibilityAuraLinux::IsPrimaryWebContentsForWindow() const {
auto primary_id = manager()
->ToBrowserAccessibilityManagerAuraLinux()
->GetPrimaryWebContentsForWindow();
return primary_id != kInvalidAXNodeID && primary_id == GetId();
}
} // namespace ui
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