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// Copyright 2016 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/ax_node_position.h"
#include "build/build_config.h"
#include "ui/accessibility/ax_enums.mojom.h"
#include "ui/base/buildflags.h"
namespace ui {
// On some platforms, most objects are represented in the text of their parents
// with a special "embedded object character" and not with their actual text
// contents. Also on the same platforms, if a node has only ignored descendants,
// i.e., it appears to be empty to assistive software, we need to treat it as a
// character and a word boundary.
AXEmbeddedObjectBehavior g_ax_embedded_object_behavior =
#if BUILDFLAG(IS_WIN) || BUILDFLAG(USE_ATK)
AXEmbeddedObjectBehavior::kExposeCharacter;
#else
AXEmbeddedObjectBehavior::kSuppressCharacter;
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(USE_ATK)
namespace testing {
ScopedAXEmbeddedObjectBehaviorSetter::ScopedAXEmbeddedObjectBehaviorSetter(
AXEmbeddedObjectBehavior behavior) {
prev_behavior_ = g_ax_embedded_object_behavior;
g_ax_embedded_object_behavior = behavior;
}
ScopedAXEmbeddedObjectBehaviorSetter::~ScopedAXEmbeddedObjectBehaviorSetter() {
g_ax_embedded_object_behavior = prev_behavior_;
}
} // namespace testing
std::string ToString(const AXPositionKind kind) {
static constexpr auto kKindToString =
base::MakeFixedFlatMap<AXPositionKind, const char*>(
{{AXPositionKind::NULL_POSITION, "NullPosition"},
{AXPositionKind::TREE_POSITION, "TreePosition"},
{AXPositionKind::TEXT_POSITION, "TextPosition"}});
const auto* iter = kKindToString.find(kind);
if (iter == std::end(kKindToString))
return std::string();
return iter->second;
}
// static
AXNodePosition::AXPositionInstance AXNodePosition::CreatePosition(
const AXNode& node,
int child_index_or_text_offset,
ax::mojom::TextAffinity affinity) {
if (!node.tree())
return CreateNullPosition();
AXTreeID tree_id = node.tree()->GetAXTreeID();
if (node.IsLeaf()) {
return CreateTextPosition(tree_id, node.id(), child_index_or_text_offset,
affinity);
}
return CreateTreePosition(tree_id, node.id(), child_index_or_text_offset);
}
AXNodePosition::AXNodePosition() = default;
AXNodePosition::~AXNodePosition() = default;
AXNodePosition::AXNodePosition(const AXNodePosition& other)
: AXPosition<AXNodePosition, AXNode>(other) {}
AXNodePosition::AXPositionInstance AXNodePosition::Clone() const {
return AXPositionInstance(new AXNodePosition(*this));
}
} // namespace ui
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