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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/accessibility/ax_context.h"
#include "third_party/blink/renderer/core/accessibility/ax_object_cache.h"
#include "third_party/blink/renderer/core/dom/document.h"
namespace blink {
class AXObjectCache;
AXContext::AXContext(Document& document, const ui::AXMode& ax_mode)
: document_(&document), ax_mode_(ax_mode) {
DCHECK(document_);
document_->AddAXContext(this);
}
AXContext::~AXContext() {
if (document_)
document_->RemoveAXContext(this);
}
AXObjectCache& AXContext::GetAXObjectCache() {
DCHECK(document_);
DCHECK(document_->IsActive());
DCHECK(document_->ExistingAXObjectCache());
DCHECK_EQ(ax_mode_.flags(),
document_->ExistingAXObjectCache()->GetAXMode().flags() &
ax_mode_.flags());
return *document_->ExistingAXObjectCache();
}
bool AXContext::HasActiveDocument() {
return document_ && document_->IsActive();
}
Document* AXContext::GetDocument() {
return document_;
}
void AXContext::SetAXMode(const ui::AXMode& mode) {
DCHECK(!mode.is_mode_off()) << "When turning off accessibility, call "
"document_->RemoveAXContext() instead.";
ax_mode_ = mode;
document_->AXContextModeChanged();
DCHECK_EQ(ax_mode_.flags(),
document_->ExistingAXObjectCache()->GetAXMode().flags() &
ax_mode_.flags());
}
} // namespace blink
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